WO2019027056A1 - Fabric for disposable fiber product, and disposable fiber product and fiber sheet using same - Google Patents

Abstract

Provided are: a fabric for sanitary and economical disposable fiber products that function as substitutes for conventional textile products; and a disposable fiber product and a fiber sheet using the same. The fabric for disposable fiber products is provided with a pulp layer in which a binder and a surfactant have been coated on pulp fibers.

Description

Fabric for disposable fiber products, disposable fiber product using the same, and fiber sheet

The present invention relates to a disposable textile product fabric that can be used as a substitute for textile products such as towels, bath towels, sleepwear, sheets, pillow covers, etc., a disposable textile product using the same, and a textile sheet.

Textile products such as towels, bath towels, sleepwear, sheets, pillow covers etc. in hotels, hospitals, nursing homes, nursing homes, massage shops etc. (ie face wash products, bath products, bed supplies etc. from textiles, fabrics What is formed) is used on a daily basis in large quantities, and the used ones are washed and used repeatedly each time. Such textile products need to be reused in a clean state to secure hygiene. Therefore, the quality of the laundry finish is important in terms of management, and it takes time and effort in terms of management, and there is also a problem that the washing cost becomes expensive.

The textile products mentioned above are cotton fiber textile products whose main material is cotton, and it is said that when the beverage or other liquid adheres to the inside of the fabric due to the characteristics of the fabric, it causes soaking and coloring. There was a problem. In this case, removal of stains and coloring is difficult or time-consuming even after washing, so the washing cost for removing stains and coloring increases, and there is a limit to repeated use by washing .

The textile products mentioned above are generally non-wet products. On the other hand, some wet towels used to keep the skin of the human body clean have been proposed.

For example, according to Patent Document 1 below, a used disposable towel formed by sealing and packaging a plurality of wet towels wound in a spiral shape with a thin film rich in flexibility, moistened with a disinfectant and sterilized. A collection is disclosed. And in this patent document 1, it is described that a wet towel is nonwoven fabrics, such as rayon, pulp, cotton, and cupra.

Further, Patent Document 2 below discloses a moisturizing nonwoven fabric obtained by supporting a moisturizing component such as glycerin on a nonwoven fabric. The patent document 2 describes that a moisturizing non-woven fabric is used for cleaning for nursing care, wiping off of a cosmetic and the like, and that fibers constituting the non-woven fabric are natural cellulose fibers, rayon fibers, etc. .

JP, 2006-239300, A JP 2007-270364 A

However, the used disposable towel assembly described in Patent Document 1 and the moisturizing non-woven fabric described in Patent Document 2 are both wet non-woven fabrics impregnated with a drug or the like, and the body is It is said to be wiped clean, and it differs in function and action from the above-mentioned textile products which wipes off moisture or sweat or absorbs moisture or sweat.

As mentioned above, textile products such as towels, bath towels, sleepwear, sheets and pillow covers have quality problems due to repeated washing and use, cost problems and hygiene problems due to stains and coloring. There is no product that is satisfactory yet, while there is awaiting the emergence of a new product that solves such problems.

SUMMARY OF THE INVENTION The present invention was made in view of the point of wrinkles, and serves as a substitute for textile products such as conventional towels, and hygienic and economical fabrics for disposable textile products and disposable textile products using the same, and It aims at providing a fiber sheet.

The fabric for disposable fiber products according to claim 1 comprises a pulp layer in which a binder and a surfactant are applied to pulp fibers.

The fabric for disposable fiber products according to claim 8 is a fabric for disposable fiber products having a sheet body formed to include a water absorbing fiber sheet layer, wherein the water absorbing fiber sheet layer is at least one of the sheet bodies. Is formed on the outer surface of the sheet and includes cellulose fibers made of a raw material containing pulp raw material, and the sheet main body has a water absorption rate of 0.4 seconds or less by the dropping method according to JIS L1907. Adopt a configuration.

The fiber sheet according to claim 16 includes an elastic member, a first liquid-absorbent sheet and a second liquid-absorbent sheet joined to the elastic member, sandwiching the elastic member, and an elastic force of the elastic member. The first liquid-absorbent sheet and the second liquid-absorbent sheet are shrunk to form a weir and have stretchability.
The fibrous sheet according to claim 17 is sandwiched between the first surface area and the second surface area impregnated with the binder, and the first and second surface areas, and the binder is less than the first and second surface areas. And an intermediate region impregnated with
The fabric for textiles according to claim 18 comprises a pulp layer and a pulp layer containing a binder.

The fabric for disposable fiber products according to claim 1 is provided with the pulp layer in which the binder and the surfactant are applied to the pulp fiber, so that the fabric for disposable fiber products having good water absorbability can be realized.

The disposable fiber product fabric according to claim 8 has a water absorption rate equal to that of the conventional cotton fiber fabric material because the water absorption rate by the drop method of JIS L1907 is 0.4 seconds or less in the sheet body. It is possible to realize the fabric for.

In the fiber sheet according to the sixteenth aspect of the present invention, since the heel surface is formed by the elastic force of the elastic member, it is possible to realize a fiber sheet which is excellent in absorbability and has a good touch.
Since the fiber sheet according to claim 17 has an intermediate area impregnated with less binder than the first and second surface areas, it realizes a fiber sheet which is excellent in water absorption of the intermediate area and is also flexible. can do.
The textile fabric according to claim 18 can realize a textile fabric provided with a pulp layer.

BRIEF DESCRIPTION OF THE DRAWINGS It is a longitudinal cross-sectional view of the cloth for disposable fiber products which concerns on the 1st Embodiment of this invention. It is a longitudinal cross-sectional view of the fabric for disposable fiber products which concerns on the 2nd Embodiment of this invention. It is a perspective view which shows the state in which the elastic member in FIG. 2 shrink | contracts and many uneven parts are formed in the sheet | seat main body. FIG. 4 is a longitudinal sectional view taken along line IV-IV of FIG. 3; It is an enlarged view of the A section of FIG. FIG. 6 is a longitudinal sectional view taken along the line VI-VI of FIG. 3; It is an enlarged view of the B section of FIG. It is a longitudinal cross-sectional view of the cloth for disposable fiber products which concerns on the 3rd Embodiment of this invention. It is a longitudinal cross-sectional view of the cloth for disposable fiber products which concerns on the 4th Embodiment of this invention. It is a longitudinal cross-sectional view of the cloth for disposable fiber products which concerns on the 5th Embodiment of this invention. It is a longitudinal cross-sectional view of the cloth for disposable fiber products which concerns on the 6th Embodiment of this invention. Fig.12 (a) is a longitudinal cross-sectional view of the cloth for disposable fiber products which concerns on the 7th Embodiment of this invention, FIG.12 (b) makes two laminated sheets of Fig.12 (a) vertically symmetrical. It is a longitudinal cross-sectional view of the fabric for disposable fiber products joined so that it might become. It is a schematic diagram showing the manufacturing line of air laid of a 7th embodiment. It is a longitudinal cross-sectional view of the fabric for disposable fiber products which concerns on the 8th Embodiment of this invention. It is a schematic diagram showing the manufacturing line of air laid of 8th embodiment. It is a longitudinal cross-sectional view of the fabric for disposable fiber products which concerns on the 9th Embodiment of this invention. It is a longitudinal cross-sectional view of the cloth for disposable fiber products which concerns on the 10th Embodiment of this invention.

The present inventors considered forming a textile product such as a towel with a material other than a cotton fiber woven material and manufacturing it as a disposable type product. Here, when it was examined to make a fiber product having the same performance as that of a conventional cotton fiber fabric material using a material containing a water absorbent fiber sheet layer, it was found that the water absorbent fiber is made of cellulose fiber made of pulp material. It has been found that it is important to form a sheet layer and to provide this water absorbent fiber sheet layer on at least one outer surface of the sheet body.
Hereinafter, although an embodiment of the present invention is described based on a drawing, the present invention is not originally limited to the following embodiment.

First Embodiment
FIG. 1 shows a longitudinal cross-sectional view of a disposable textile product fabric 1 according to a first embodiment of the present invention. The disposable fiber product fabric 1 has a sheet body 2 formed to include a water absorbing fiber sheet layer, and the water absorbing fiber sheet layer is formed to include cellulose fibers made from pulp. As a cellulose fiber material which is a formation material of a water absorbing fiber sheet layer, an air laid nonwoven fabric, a spunlace nonwoven fabric containing 50% or more of rayon fibers, a paper material, etc. may be mentioned.

All of these air laid non-woven fabrics, spun lace non-woven fabrics and paper materials are made from raw material pulp, and wood pulp, synthetic pulp, waste paper pulp and the like can be used as the raw material pulp. As wood pulp, for example, softwood bleached kraft pulp obtained from conifers such as red pine, ego pine, todo pine, Douglas fir, hemlock, and spruce can be used. In addition, hardwood bleached kraft pulp obtained from hardwoods such as beech, lark, hippo, eucalyptus, oak, poplar and alder and the above-mentioned softwood bleached kraft pulp may be used. However, it is preferable to use softwood bleached kraft pulp alone from the viewpoint of production cost and production efficiency. Moreover, not only these natural fibers containing a pulp but regenerated fibers, such as rayon, viscose rayon, and toilet paper material, can also be used.

The water-absorbent fiber sheet layer is not limited to an embodiment formed from a cellulose fiber material that uses only pulp (100% of pulp) as a raw material, and is made of pulp as a main raw material and other materials blended with this It may be formed of a material. Other materials to be blended into the pulp include, for example, polyester fibers, nylon fibers, polypropylene fibers and the like. When the water-absorbent fiber sheet layer is formed of a material whose main material is pulp, the blending ratio of pulp is preferably 30% or more, more preferably 50% or more, and further preferably 80% or more. It is most preferable that By setting the blending ratio of pulp to the above-mentioned ratio, it is possible to improve the flexibility of the entire sheet body 2 or to improve the production efficiency at the time of production. Moreover, the use ratio of petroleum-based materials can be reduced by increasing the blending ratio of pulp. Therefore, when discarding the fabric 1 for disposable fiber products, it is possible to reduce the amount of CO ₂ generated by incineration and other factors that have an impact on the environment. As a result, the load on the environment can be reduced.

The sheet main body 2 is composed of the air laid nonwoven fabric layer 3 and the paper material layer 4, and thus the air laid nonwoven fabric and the paper material are used as the material for forming the water absorbent fiber sheet layer. The air laid nonwoven fabric layer 3 and the paper material layer 4 are laminated to each other to form a laminated sheet 6, and the sheet main body 2 is formed by the laminated sheet 6. That is, in the sheet main body 2, the air laid nonwoven fabric layer 3 is provided on one outer surface (upper surface), and the paper material layer 4 is provided on the other outer surface (lower surface). In this embodiment, the sheet main body is formed of a laminated sheet formed by laminating different types of water absorbent fiber sheet layers.

The air laid nonwoven fabric layer 3 and the paper material layer 4 which are laminated sheet constituting layers forming the laminated sheet 6 are mutually bonded by the adhesive 5. A hot melt adhesive, an organic solvent adhesive, a water-soluble adhesive or the like can be used as the adhesive 5 for joining the air laid nonwoven layer 3 and the paper material layer 4, but it is preferable to use a hot melt adhesive. . As a hot melt adhesive, EVA (ethylene-vinyl acetate copolymer), PO (polyolefin), PA (polyamide), SR (silicone synthetic rubber), ACR (acrylic), PUR (polyurethane, moisture) Adhesives such as curable type) may be mentioned, and one of these may be used, or two or more may be used in combination.

As for the form which joins the air laid nonwoven fabric layer 3 and the paper material layer 4, as shown in FIG. 1, it is preferable to partially apply | coat the adhesive agent 5 and to make it partial bonding. Thereby, the sheet main body 2 becomes flexible, and the water absorbency of the sheet main body 2 becomes good. The partial application method of the adhesive includes a method of applying in the form of a line, a spot, a stripe, a spiral, a block, a pattern and the like, and one of them may be used or a plurality of them. The methods may be used in combination.

Here, an example of the manufacturing method of an air laid nonwoven fabric is described. First, a raw material sheet is supplied into the housing, and the raw material sheet is crushed by a grinder installed in the housing. The raw material sheet is formed of natural fibers such as pulp and ground pulp, regenerated fibers such as rayon, or a mixture of natural fibers and regenerated fibers. Further, as the raw material sheet, a thin paper such as toilet paper or a multi-layered paper in which a plurality of thin paper are stacked may be used. The raw material sheet is crushed by a crusher to obtain pulp fibers consisting of crushed pulp, and the pulp fibers drop from a high place onto the conveying belt at a lower position and are deposited on the conveying belt. The transport belt is preferably in the form of a mesh having a large number of holes through which air can pass, and suction is performed from below the transport belt through the holes to efficiently drop pulp fibers onto the transport belt. Thus, the raw material fiber is obtained. Binder supply is performed to the obtained raw material fiber. The binder is supplied by spraying the binder on one surface of the raw material fiber, for example, the upper surface side. By spray supply of the binder, a raw material fiber sheet in the form of a sheet in which the fibers are bonded can be obtained. As the aforementioned binder, ethylene-vinyl acetate copolymer resin (EVA), polyvinyl alcohol resin (PVA), vinyl acetate resin, carboxymethyl cellulose resin (CMC), acrylic resin, epoxy resin, etc. are used, but the degree of freedom in resin design In view of the crosslinkability for imparting strength and the like, it is preferable to use an acrylic resin or an ethylene-vinyl acetate copolymer resin (EVA).

In addition, you may add the process of pressing a raw material fiber with a roll before a binder supply process. In this pressing step, for example, the raw material fibers are passed between an embossing roll (upper roll) and a flat roll (lower roll) to press the raw material fibers, and the surface of the raw material fibers is provided with an uneven shape. Thus, the binder may be supplied after pressing the raw material fibers.

After the binder supply step, the raw fiber sheet is sent to a dryer and drying is performed. As the drier, conventionally known driers such as a hot air drier, an infrared drier such as near infrared light and far infrared light, an electromagnetic wave drier, a drum drier, a heat roll drier, and a gas drier can be used. For example, when the binder is an ethylene-vinyl acetate copolymer resin (EVA), heating is preferably performed at 150 ° C. to 170 ° C., and heating is preferably performed at a dryer internal temperature of 90 ° C. to 300 ° C. For example, when the binder is an acrylic resin, it is preferable to heat at about 90 ° C. to 150 ° C. as described later, and it is preferable to heat at a dryer internal temperature of 80 ° C. to 300 ° C. From the viewpoint of increasing the strength of the raw fiber sheet, it is preferable to use, for example, hot air drying and hot roll drying in combination. By doing so, the degree of crosslinking of the acrylic resin and EVA can be increased, and a raw fiber sheet having higher strength can be obtained. In the process of grinding the raw material sheet and / or after the grinding process, heat fusible composite fibers (heat adhesive composite fibers) made of two kinds of resins having different melting points may be mixed, and in this case, the drying process In the above, the outer resin fiber having a low melting point melts and bonds the fibers of the raw fiber sheet to one another, so that a raw fiber sheet having high strength is easily obtained. In addition, ES fiber of JNC Co., Ltd. can be used as a heat fusible composite fiber.
An air laid nonwoven fabric is formed by the raw material fiber sheet obtained as described above. After the above-described drying, the raw fiber sheet may be sent to the binder supplying step, where the binder may be sprayed and supplied to the lower surface side of the raw fiber sheet. Even when the binder is not sufficiently impregnated to the lower surface side by the binder supply to the upper surface side of the raw material fiber described above, the binder can be sufficiently contained in the fiber layer by the binder supply from the lower surface side. After the binder supply on the lower surface side, the same heating and drying as described above, such as hot-air drying and the like, are performed.

As the paper material layer 4, it is preferable to use pulp paper or paper made of a material whose main raw material is pulp.

Second Embodiment
FIG. 2 shows a longitudinal sectional view of a disposable fiber product cloth 11 according to a second embodiment of the present invention. In the present embodiment, only the air-laid nonwoven fabric is used as a material for forming the water-absorbent fiber sheet layer. That is, in the present embodiment, the air laid nonwoven fabric layer 13a is provided on one outer surface (upper surface) of the sheet main body 12, and the air laid nonwoven fabric 13b is provided on the other outer surface (lower surface), The two air-laid non-woven layers 13a and 13b are laminated to each other to form a laminated sheet 16. In this embodiment, the sheet main body is formed of a laminated sheet formed by laminating the same kind of water absorbent fiber sheet layers. An elastic member 7 having elasticity is interposed between the air-laid nonwoven fabric layers 13a and 13b which are laminated sheet constituent layers forming the laminated sheet 16, and the air-laid nonwoven fabric layers 13a and 13b are bonded by an adhesive 15 through the elastic member 7. It is mutually joined. The sheet main body 12 is formed by the laminated sheet 16 formed in this manner.
Airlaid nonwoven layer 13a, 13b (first, second liquid-absorbing sheet) The basis weight of, preferably about 20 ~ 200 g / ^{m 2,} respectively, and more preferably 45 ~ 100g / ^{m 2.} The disposable fiber product fabric 11 (fiber sheet) having such a configuration is excellent in water absorbability and has a thickness, so that the touch feeling can be made close to a towel fabric or a sheet fabric. Further, the fabric 11 (fiber sheet) for disposable fiber products is the fabric 11 for disposable fiber products since the air absorbent nonwoven fabric layer 13a and the air laid nonwoven fabric layer 13b having high water absorbability are disposed centering on the elastic member 7 Moisture can be absorbed on both sides of the fiber sheet, and curling of the disposable fiber product fabric 11 (fiber sheet) can be prevented.
The air-laid non-woven layers 13a and 13b may be 100% pulp, or may be mixed with heat fusible composite fibers or rayon fibers. The strength of the air-laid non-woven fabric layers 13a and 13b can be increased by mixing 10% to 40% of the heat-fusible composite fibers, and the air-laid non-woven fabric layers 13a and 13 b can be made more white. The appearance of the product fabric 11 can be improved.

FIG. 2 shows a cross-sectional view of the elastic member 7 in a pulled state. The air-laid non-woven layers 13a and 13b are preferably partially bonded to each other through the elastic member 7. The air laid nonwoven fabric layers 13a and 13b are bonded to each other by the adhesive 15 via the elastic member 7, but both may be bonded only by bonding via the elastic member 7. Alternatively, the air laid nonwoven fabric layers 13a and 13b may have a portion directly joined to each other other than the joined portion by the elastic member 7.

FIG. 3 shows the disposable fiber product fabric 11 in a state in which the elastic member 7 is released from tension and contracted by the restoring force. In the second embodiment, the elastic member 7 is disposed between the air-laid non-woven layers 13a and 13b, and the sheet main body 12 is provided with stretchability by the elastic member 7.

In FIG. 3, the sheet body 12 is continuous in the x direction, which is the length direction. The elastic member 7 is provided inside the sheet main body 12, and a large number of concavo-convex portions 10 consisting of the concave portions 8 and the convex portions 9 are formed by the large number of elastic members 7, and the concave portions 8 and the convex portions 9 repeat many times along the x direction It is formed. Then, as shown in FIG. 3 and FIG. 4 (longitudinal sectional view taken along the line IV-IV in FIG. 3), a concavo-convex row 18 formed by repeating the concave portion 8 and the convex portion 9 is formed between the elastic members 7 and 7 ing. The elastic member 7 is provided along the x direction, and applies an elastic force in the x direction to the sheet main body 12. A plurality of such elastic members 7 are provided at predetermined intervals in the width direction (y direction).

It is preferable to use a linear elastic body having stretchability as the elastic member 7. The shape of the linear elastic body is preferably linear and cylindrical (the cross-sectional shape is a circle). The material of the elastic member 7 is preferably made of a material such as urethane, silicone, butadiene, or a synthetic rubber based on styrene butadiene, or a natural rubber, and the elastic member 7 is preferably a synthetic rubber or a natural rubber thereof. A combination of any of the above materials may be used. The elastic member 7 is not limited to a cylindrical shape, and may have a triangular prism shape, a quadrangular prism shape, another polygonal prism shape, or an elliptic prism shape. The elastic member 7 may be rectangular or sheet-like. Further, the elastic member 7 may be one obtained by bundling or twisting a plurality of linear members. Further, instead of using a large number of linear elastic bodies, it is also possible to use a grid-shaped elastic member as the elastic member 7. In this case, it is also possible to form a large number of uneven portions 10 in one grid shape. It is possible. Furthermore, instead of using a large number of linear elastic bodies, a stretchable film may be used as the elastic member 7. As the stretchable film, an elastomeric film such as a urethane film or a silicone film can be used.

FIG. 5 is an enlarged view of a portion A in FIG. 4 and shows the laminated air-laid non-woven layers 13a and 13b and a non-joining portion 19 to which an adhesive is not applied is formed therebetween. The state is shown. 6 is a vertical cross-sectional view taken along the line VI-VI in FIG. 3, and FIG. 7 is an enlarged view of a portion B in FIG. As shown in FIG. 7, the air-laid non-woven layers 13 a and 13 b are bonded by an adhesive 15 applied to the circumferential surface of the elastic member 7. On the other hand, the non-joining part 19 to which the adhesive agent 15 is not applied is formed in the mutual contact surface of the air laid nonwoven fabric layers 13a and 13b in the part in which the elastic member 7 does not exist.

Here, an example of the manufacturing method of the fabric 11 for disposable fiber products which concerns on 2nd Embodiment is demonstrated. The first air laid nonwoven sheet wound on the first roll is unwound, and then the plurality of linear elastic members wound on the second roll are unwound above the first air laid nonwoven sheet in a stretched state . The adhesive is sprayed on the linear elastic body rows arranged in a row, and the adhesive is applied to the linear elastic bodies. The adhesive is supplied by an adhesive applicator with a nozzle. It is preferable to use a hot melt adhesive as the adhesive, but it is not limited thereto. Then, the second air-laid nonwoven fabric sheet wound around the third roll is drawn out above the linear elastic body row, and the linear elastic body row is interposed between the first air-laid nonwoven sheet and the second air-laid nonwoven sheet. With the first air laid nonwoven sheet, the linear elastic body row, and the second air laid nonwoven sheet overlapping each other, passed through a pair of pressure rolls, and pressed there, the linear elastic body The first and second air laid nonwoven sheets are joined and integrated by the adhesive applied to the rows. After the first and second air-laid nonwoven sheets are joined and integrated, when the stretched state of the linear elastic body (elastic member 7) is released, a weir surface consisting of a large number of concavo-convex rows continuous to the entire fiber sheet is formed Be done. Thus, the laminated sheet in which the first and second air laid nonwoven sheets are laminated while the linear elastic body (elastic member 7) is pulled, that is, the air laid nonwoven layer 13a and the air laid nonwoven layer 13b are laminated. The laminated sheet 16 (FIG. 2) is manufactured.
The first air-laid non-woven fabric sheet may be bonded by partially applying an adhesive on the first air-laid non-woven fabric sheet, also by the adhesive application portion.

Since the sheet body 12 has a long dimension, cutting is performed to make the length dimension in the length direction (x direction in FIG. 3) of the sheet body 12 be a predetermined length. In this cutting, the air-laid non-woven layers 13a and 13b and the elastic member 7 are cut. By cutting the elastic member 7, the elastic member 7 in the pulled state is released from the pulling force and is contracted by the restoring force. Since the sheet body 12 receives a force in the direction in which the length is shortened by the restoring force at this time, a plurality of uneven portions 10 are formed in the sheet body 12. Thus, the sheet main body 12 in which the plurality of uneven portions 10 as shown in FIG. 3 are formed is manufactured.

The number of elastic members 7 per unit area in the sheet main body 12 can be set arbitrarily, but if the number of elastic members 7 is increased to reduce the distance between the elastic members 7, the concave portions 8 and convex portions in a row of uneven rows 18 The portion 9 can be formed into a uniform shape, and the shape can be maintained, and the water absorbability can be improved. In order to exhibit excellent water absorption, the pitch interval between the projections 9 and the projections 9 in one concavo-convex row 18 is preferably 2.00 mm to 7.00 mm, and more preferably 3.00 mm to 6.25 mm. preferable.
In addition, it is good also as replacing with the air laid nonwoven fabric layers 13a and 13b, and using a rayon nonwoven fabric layer (liquid absorptive sheet). Since rayon is very excellent in water absorption and water retention performance, it is possible to improve the wiping property of moisture by forming a fiber sheet with the first and second rayon layers in this way, and also a towel It can be brought close to the feel of the fabric or the sheeting fabric.
The rayon layer is preferably 100% rayon, but the content of rayon may be the largest as compared to other materials. The rayon layer is not limited to rayon, and may be viscose.
Also, instead of the rayon layer, a fabric made of polyester, cotton, acrylic, cotton, hemp, silk, leather, and a mixture of these may be used. Rayon or air laid can also be used as the mixed material. Thus, it is possible to provide a thin and light, easy-to-move clothes and the like.
In addition, a moisture permeable film may be added and laminated between the first layer and the elastic member 7 in the disposable fiber product fabric 11 (fiber sheet). The first layer and the moisture-permeable film are joined by applying an adhesive such as a hot melt adhesive. Spray application is preferred as the method of applying the adhesive. The moisture-permeable film and the second layer are bonded by an adhesive through the elastic member 7.
A moisture-permeable film is a film that does not transmit water but transmits water vapor. For this reason, by having the above-mentioned configuration, it is possible to transmit moisture vapor such as sweat while being waterproof, and therefore, it can be provided as clothes that are resistant to steaming. In addition, it is possible to realize thin and light clothes that are easy to move.

Third Embodiment
FIG. 8 shows a longitudinal sectional view of a disposable textile product cloth 21 according to a third embodiment of the present invention. In the present embodiment, a composite material made of a combination of an air laid non-woven fabric and a paper material is used as a material for forming the water absorbent fiber sheet layer, and the sheet main body 22 is a composite layer of the air laid non-woven fabric layer 23 a and the paper material layer 14 a, It has a composite layer of the air laid nonwoven fabric layer 23b and the paper material layer 14b. In the sheet main body 22, the air laid nonwoven fabric layer 23a is provided on one outer surface (upper surface) and the air laid nonwoven fabric 23b is provided on the other outer surface (lower surface). . Spunbond nonwoven fabric layers 20a and 20b are respectively laminated on the paper material layers 14a and 14b in the composite layer, and an elastic member 17 is interposed between the spunbond nonwoven fabric layers 20a and 20b, and the spunbond nonwoven fabric The layers 20 a and 20 b are bonded to each other by the adhesive 15 via the elastic member 17.

The air-laid non-woven fabric layer 23a and the paper material layer 14a in the composite layer are bonded to each other by the adhesive 25, and similarly, the air-laid non-woven fabric layer 23b and the paper material layer 14b are bonded to each other by the adhesive 25. In this manner, the composite layer of the air laid nonwoven fabric layer 23a and the paper material layer 14a, the spunbond nonwoven fabric layers 20a and 20b, and the composite layer of the air laid nonwoven fabric layer 23b and the paper material layer 14b are mutually laminated and laminated. A sheet 26 is formed, and a sheet main body 22 is formed by the laminated sheet 26.

Similar to FIG. 2, FIG. 8 shows a cross-sectional view in a state where the elastic member 17 is pulled. Bonding of the air laid nonwoven fabric layer 23a and the paper material layer 14a, bonding of the paper material layer 14a and the spunbonded nonwoven fabric layer 20a, bonding of the spunbond nonwoven fabric layer 20b and the paper material layer 14b, and the paper material layer 14b and the air laid nonwoven fabric layer The joints with 23b are preferably partially jointed, respectively. In the figure, 25 shows an adhesive. The spunbond nonwoven layers 20a and 20b are bonded to each other by the adhesive 25 through the elastic member 17. However, both may be bonded only by bonding through the elastic member 17. Alternatively, there may be a portion where the spunbonded nonwoven layers 20 a and 20 b are directly bonded to each other other than the bonding portion by the elastic member 17.

In the manufacturing process of the fabric 21 for disposable fiber products, the long sheet main body 22 is cut to a predetermined length as described above, but at the time of this cutting, the elastic member 17 is released from the tensile force and shrinks by the restoring force. . In the fabric for disposable fiber products in a state in which the elastic member 17 is released from the tensioned state and contracted by the restoring force, the structure to which the sheet main body 22 is provided with the elasticity is the same as the second embodiment. Description of the structure is omitted.
As a modification of the third embodiment, the paper material layers 14a and 14b may be omitted. The spunbond nonwoven fabric layer 20a (first spunbond nonwoven fabric layer) is bonded to the air laid nonwoven fabric layer 23a (first air laid nonwoven fabric layer) by an adhesive such as a hot melt adhesive, and the spunbond nonwoven fabric layer 20b (second spunbonded nonwoven fabric) The layer is bonded to the air-laid nonwoven fabric layer 23b (second air-laid nonwoven fabric layer) by an adhesive such as a hot melt adhesive.
The spunbonded nonwoven layers 20a, 20b (first and second spunbonded nonwoven layers) are bonded to the elastic member 17 in a stretched state by a hot melt adhesive. Thus, the air-laid nonwoven fabric layers 23a and 23b (first and second air-laid nonwoven fabric layers) can be reinforced by the spun-bonded nonwoven fabric layers 20a and 20 b (first and second spun-bonded nonwoven fabric layers), and disposable fiber products The strength of the entire fabric 21 (fiber sheet) can be improved. In addition, since the spunbond nonwoven fabric is less likely to wrinkle, the production efficiency at the time of producing the fabric 21 (fiber sheet) for disposable fiber products can be improved. Furthermore, the bonding strength between the spunbond nonwoven fabric and the elastic member 17 is high, and so-called "rubber removal" can be prevented.
In addition, it may replace with spunbond nonwoven fabric layer 20a, 20b, and may use a spunlace nonwoven fabric.
Further, in the fabric 21 (fiber sheet) for disposable fiber products shown in FIG. 8, the spunbond non-woven layers 20a and 20b are omitted, and the air-laid non-woven layers 23a and 23b, the paper material layers 14a and 14b, and the elastic member 17 are configured. You may In FIG. 8, the paper material layer 14a is provided inside the air laid nonwoven layer 23a, and the paper material layer 14b is provided inside the air laid nonwoven layer 23b. Instead of this, the air laid nonwoven fabric layer 23a may be provided inside the paper material layer 14a, and the air laid nonwoven fabric layer 23b may be provided inside the paper material layer 14b. As a result, the risk of the paper dust being dissipated from the surface of the air laid nonwoven fabric layers 23a and 23b can be reduced.

Fourth Embodiment
FIG. 9 shows a longitudinal sectional view of a disposable textile product cloth 31 according to a fourth embodiment of the present invention. In the present embodiment, the sheet body 32 is composed of the spunlace nonwoven fabric layer 28 and the paper material layer 24. Thus, the spunlace nonwoven fabric and the paper material are used as a material for forming the water absorbent fiber sheet layer. The spunlace nonwoven fabric layer 28 and the paper material layer 24 are laminated to each other to form a laminated sheet 36, and the sheet body 32 is formed by the laminated sheet 36. In the sheet main body 32, a spunlace nonwoven fabric layer 28 is provided on one outer surface (upper surface), and a paper material layer 24 is provided on the other outer surface (lower surface).

The spunlace nonwoven fabric layer 28 and the paper material layer 24 which are laminated sheet constituting layers forming the laminated sheet 36 are mutually bonded by an adhesive 35 such as a hot melt adhesive. The bonding between the spunlace nonwoven fabric layer 28 and the paper material layer 24 is preferably partial bonding in terms of the flexibility and water absorption of the sheet body 32. The spunlace nonwoven fabric layer 28 is preferably a spunlace nonwoven fabric containing 50% or more of rayon fibers, and in particular, the spunlace nonwoven fabric layer 28 is preferably formed of a spunlace nonwoven fabric composed of 100% of rayon fibers.

Fifth Embodiment
FIG. 10 is a longitudinal sectional view of a disposable fiber product cloth 41 according to a fifth embodiment of the present invention. In this embodiment, a composite material made of a combination of a spunlace nonwoven fabric and a paper material is used as a material for forming the water absorbent fiber sheet layer, and the sheet body 42 is a composite layer of the spunlace nonwoven fabric layer 38a and the paper material layer 34a. And a composite layer of a spunlace nonwoven fabric layer 38b and a paper material layer 34b. In the sheet main body 42, the spunlace nonwoven fabric layer 38a is provided on one outer surface (upper surface), and the spunlace nonwoven fabric 38b is provided on the other outer surface (lower surface). ing. An elastic member 27 is interposed between the paper material layers 34 a and 34 b in the composite layer, and the paper material layers 34 a and 34 b are bonded to each other by the adhesive 45 via the elastic member 27.

The spunlace nonwoven fabric layer 38a and the paper material layer 34a in the composite layer are bonded to each other by the adhesive 45, and, similarly, the spunlace nonwoven fabric layer 38b and the paper material layer 34b are bonded to each other by the adhesive 45. . Thus, the composite layer of the spunlace nonwoven fabric layer 38a and the paper material layer 34a and the composite layer of the spunlace nonwoven fabric layer 38b and the paper material layer 34b are mutually laminated via the elastic member 27 to form a laminated sheet. The sheet 46 is formed, and the sheet main body 42 is formed by the laminated sheet 46.

FIG. 10 shows a cross-sectional view of a state in which the elastic member 27 is pulled, as in FIG. It is preferable that the bonding between the spunlace nonwoven fabric layer 38a and the paper material layer 34a and the bonding between the paper material layer 34b and the spunlace nonwoven fabric layer 38b be partially bonded. The paper material layers 34a and 34b are bonded to each other by the adhesive 45 via the elastic member 27, but both may be bonded only by bonding via the elastic member 27, or a paper material There may be a portion in which the layers 34 a and 34 b are directly bonded to each other other than the bonding portion by the elastic member 27. The spunlace nonwoven fabric layers 38a and 38b are preferably made of spunlace nonwoven fabric containing 50% or more of rayon fibers, and in particular, the spunlace nonwoven fabric layers 38a and 38b may be formed of spunlace nonwoven fabric composed of 100% rayon fibers. preferable.

As described above, the long sheet main body 42 is cut into a predetermined length, and at the time of this cutting, the elastic member 27 is released from the tensile force and is contracted by the restoring force, and the sheet main body 42 is provided with elasticity. The structure in which the sheet main body 42 is provided with elasticity is the same as that of the second embodiment, and thus the description of the structure is omitted.
As a modification of the fifth embodiment, instead of the spunlace nonwoven fabric layers 38a and 38b, a fabric made of polyester, rayon, cotton, acrylic, cotton, hemp, silk, leather, and a mixed material thereof In addition, the paper material layer 34b may be omitted.
The paper material layer 34a is tissue paper, crepe paper or the like formed through a wet papermaking process or the like, and is mainly made of cellulose-based fibers. When printing is possible on the paper material layer 34a and the light blocking ratio of the fabric of this modification is low, the printed paper material layer 34a improves the designability of the fabric 41 (fiber sheet) for disposable fiber products It can be done.
The present modification can be provided as clothes that are warm in winter, cool in summer, and less stuffy by having the above configuration. In addition, it is possible to realize thin and light clothes that are easy to move.
A moisture permeable film may be added between the paper material layer 34 a and the elastic member 27 and laminated. The bonding of the paper material layer 34a and the moisture-permeable film is preferably spray coating of an adhesive. With such a configuration using a moisture-permeable film, it is possible to be provided as a garment or the like that is difficult to steam because it is warm in winter, cool in summer, and waterproof while it allows water vapor such as sweat to permeate. In addition, it is possible to realize thin and light clothes that are easy to move.

Sixth Embodiment
FIG. 11 shows a longitudinal sectional view of a disposable fiber product cloth 51 according to a sixth embodiment of the present invention. In the present embodiment, the sheet main body 52 is composed of the spunlace nonwoven fabric layers 48a and 48b and the air laid nonwoven fabric layer 33, and thus the spunlace nonwoven fabric and the air laid nonwoven fabric are used as a material for forming the water absorbent fiber sheet layer. . The air laid non-woven fabric layer 33 is formed to be located between the spun lace non-woven fabric layers 48a and 48b, and the spun lace non-woven fabric layer 48a, the air laid non-woven fabric layer 33 and the spun lace non-woven fabric layer 48b are laminated and laminated to each other. A sheet 56 is formed, and a sheet main body 52 is formed by the laminated sheet 56. In the sheet main body 52, a spunlace nonwoven fabric layer 48a is provided on one outer surface (upper surface), and a spunlace nonwoven fabric layer 48b is provided on the other outer surface (lower surface).

The spunlace nonwoven fabric layer 48a, the air laid nonwoven fabric layer 33, and the spunlace nonwoven fabric layer 48b, which are laminated sheet constituent layers forming the laminated sheet 56, are mutually bonded by an adhesive 55 such as a hot melt adhesive. The bonding of the spunlace nonwoven fabric layer 48a and the airlaid nonwoven fabric layer 33 and the bonding of the airlaid nonwoven fabric layer 33 and the spunlace nonwoven fabric layer 48b are preferably partial bonding in terms of the flexibility and water absorption of the sheet main body 52, respectively. The spunlace nonwoven fabric layers 48a and 48b are preferably made of spunlace nonwoven fabric containing 50% or more of rayon fibers, and in particular, the spunlace nonwoven fabric layers 48a and 48b may be formed of spunlace nonwoven fabric composed of 100% rayon fibers. preferable.

Seventh Embodiment
FIG. 12 (a) shows a longitudinal cross-sectional view of a disposable fiber product cloth 61 according to a seventh embodiment of the present invention. In FIG. 12 (a), the fabric 61 for disposable fiber products has an air-laid web 63 embossed and a spunbonded nonwoven fabric 58, and is bonded to the air-laid web 63 with an adhesive 65 such as a hot melt adhesive. Bonding with the bonded non-woven fabric 58 to form the laminated sheet 66, and laminating the spunbonded non-woven fabric 58 on the air-laid web 63 can reduce the possibility of the paper powder being dissipated from the surface of the air-laid web 63 and Strength is improved.
The air laid web 63 may be 100% of pulverized pulp fibers, and 10% to 40% of heat fusible composite fibers may be mixed. When the disposable fiber product fabric 61 is used for sheets, various towels, and a handkerchief, it is preferable to mix the heat fusible composite fibers because the air laid web 63 is required to have strength and whiteness. The air laid web 63 may be whitened by mixing a titanium white dispersion liquid with a water soluble binder (for example, a water soluble acrylic binder) for adhering the ground pulp. The titanium white dispersion is prepared by adding titanium white and water so that the content of titanium white is 10% to 75%, preferably 40% to 70%, more preferably 60% to 65% by weight. Just add The order of adding water and titanium white may be any order, and may be performed alternately.
In addition, when the fabric 61 for disposable fiber products is used for sheets and various towels and handkerchiefs, a surfactant is mixed with a water-soluble binder so that liquids such as sweat and water can be easily impregnated into the air laid web 63. May be As the surfactant, various surfactants can be used to increase the permeability of the liquid, such as anionic surfactants, cationic surfactants, amphoteric surfactants and nonionic surfactants. Examples of the anionic surfactant include alkyl sulfates such as sodium lauryl sulfate, polyoxyalkylene alkyl ether sulfates such as polyoxyethylene lauryl ether sodium sulfate, and alkyl sulfonates such as sodium dialkyl sulfosuccinate. Examples of cationic surfactants include quaternary ammonium salts such as benzalkonium chloride, and alkyl ammonium salts such as stearylamine acetate. Examples of amphoteric surfactants include alkyl betaines such as lauric acid amidopropyl betaine, lauryl betaine and stearyl betaine, and alkyl amine oxides such as lauryl dimethyl amine oxide. As the nonionic surfactant, for example, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyalkylene alkyl ether such as polyoxyethylene lauryl ether, polyoxyethylene monolaurate, polyoxyethylene monostearate, poly Polyoxyalkylene alkyl esters such as oxyethylene monooleate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monopalmitate And sorbitan fatty acid esters and the like. The surfactant is preferably a nonionic surfactant, particularly preferably a polyether type nonionic surfactant, more preferably a polyoxyalkylene alkyl ether.
The content of the surfactant in the binder may be 0.05% to 2%, preferably 0.1% to 1% by weight.
The water-soluble acrylic binder is prepared by adding water to acrylic resin so that the acrylic content is 3% to 30%, preferably 5% to 20%, more preferably 5% to 15% by weight. Just add it. The order of adding the acrylic and the water may be any order, and may be performed alternately.
The surfactant is not limited to the case of being added to the binder and supplied, and may be either before or after adding the binder, or a combination of these may be used, but it is preferable to carry out after the binder is added.

The air-laid web 63 has crushed pulp fibers, so it has a space between the pulp fibers, and can absorb water such as sweat and water in this space. In addition, if the air laid web 63 is embossed to form a concavo-convex portion on one side of the air laid web 63, a liquid such as sweat or water can be absorbed by the concave portion, and the water absorbency of the air laid web 63 is further improved. be able to.
Moreover, when using the fabric 61 for disposable fiber products as a sheet, those who prefer a sense of smoothness have the spunbond nonwoven fabric 58 side as the skin side, and those who prefer a sense of resistance or rough feeling have an air-laid web 63 with uneven portions formed. The side should be the skin side. As described above, since the texture (feel) is made different on one side of the disposable fiber product cloth 61 and on the other side, it is possible to realize a disposable fiber product cloth 61 that is easy to use.

In FIG. 12B, the two laminated sheets 66 of FIG. 12A are joined so as to be vertically symmetrical. That is, the laminated sheet 66 of FIG. 12 (b) is laminated in the order of the air laid web 63, the spun bond nonwoven fabric 58, the spun bond nonwoven fabric 58, and the air laid web 63, and each layer is made of an adhesive 65 such as a hot melt adhesive. It is joined. The spunbonded nonwoven fabric 58 may have two layers or one layer. As described above, since the water absorption amount is increased by forming the air-laid web 63 and the spunbond nonwoven fabric 58 in a plurality of layers, the fabric 61 for disposable fiber products is suitable for use in bath towels, towels, and face towels. Moreover, since the uneven | corrugated | grooved part is formed in the double-sided cloth 61 for disposable fiber products of FIG.12 (b), when using it as a towel or a bath towel, the body is wash | cleaned by moderate friction, and the liquid attached to the body Can be absorbed. That is, it can be said that the uneven portions on both sides of the laminated sheet 66 perform the same function as the ordinary towel pile and shirring function.
Instead of the spunbond nonwoven fabric 58, nonwoven fabrics such as spunlace nonwoven fabric, thermal bond nonwoven fabric, chemical bond nonwoven fabric, air through nonwoven fabric, etc. can also be used.

(Manufacture of air laid web 63)
FIG. 13 is a schematic view showing an air laid production line 100. Hereinafter, a method of manufacturing the air-laid web 63 will be described with reference to FIG.
The pulp raw material 101 is pulverized by the pulverizer 102 to form cotton-like pulp fiber pieces (hereinafter referred to as "pulverized pulp"). Pulverized pulp rides on the air flow formed by the air flow forming device 103, and is accumulated on the mesh-like conveyance belt 104.
The grinder 102 has a cutter, and the type and driving method of the cutter may be adjusted to adjust the roughness of the pulp to be ground or to adjust the fiber length. The air flow forming device 103 is connected to a vacuum source, and crushed pulp is accumulated on the transport belt 104 by vacuum suction.
Further, the heat fusible composite fiber 105 is also conveyed into the air flow forming device 103 and mixed with the crushed pulp of the conveyance belt 104. As a result, a fiber-stacked sheet is formed, but when manufacturing the air-laid web 63, the heat-fusible composite fibers may not necessarily be mixed.
The piled sheet is given an embossed shape by a pair of embossing rolls 106. Thereby, thickness can be given to a fiber sheet and it can closely approach to the touch feeling of towel cloth or a sheet. In addition, the pair of embossing rolls 106 may press the stacked sheet while applying heat. In this case, it can contribute to retention of the embossed shape. However, the pair of embossing rolls 106 is not necessarily required, and one may be an embossing roll and the other may be a flat roll.

Next, the piled sheet is applied and impregnated with a water-soluble binder and a surfactant on the first surface layer by the first spray device 107. At this time, the piled-up sheet is sucked by the first suction device 108, and the water-soluble binder and the surfactant are also drawn into the piled-up sheet. The fiber-stacked sheet to which the water-soluble binder and the surfactant have been applied is dried by the first dryer 109 to evaporate the water. The dried fiberboard sheet is applied and impregnated with a water-soluble binder and a surfactant on the second surface layer by the second spray device 110. At this time, the piled sheet is sucked by the second suction device 111, and the water-soluble binder is also drawn into the piled sheet. The fiber-stacked sheet to which the water-soluble binder and the surfactant have been applied is dried by the second dryer 112 to evaporate the water.
In the present embodiment, a water-soluble acrylic binder is used as the water-soluble binder, but a water-soluble binder such as EVA, PVA, or CMC may be used. In the present embodiment, a surfactant is mixed with the water-soluble acrylic binder. The titanium white dispersion may or may not be mixed with the water soluble acrylic binder.
The piled sheet having passed through the second dryer 112 is embossed by a pair of rolls 113, one of which has the embossing roll 113a and the other of which has the flat roll 113b, and an uneven portion is formed on one side of the air laid web 63. Be done. The embossing shape of the embossing roll 113a may be any of various shapes such as vertical, horizontal, wavy, and cross.
The fiber-stacked sheet that has passed through the pair of rolls 113 is heated by the pair of heat rolls 114. The pair of heat rolls heats the piled sheet having the uneven portion formed at 80 ° C. to 170 ° C., preferably 120 ° C. to 160 ° C. By heating the piled sheet, the fluff on the surface of the air-laid web 63 can be suppressed, and the pulp fibers in the air-laid web 63 are restored to soften the air-laid web 63. The acrylic resin can impart appropriate strength to the air-laid web 63 by heating at about 90 ° C. to 150 ° C.
Further, if the gap between the pair of heat rolls 114 is set to about 1 mm to 5 mm, it is possible to manufacture a smooth air-laid web 63 having a desired thickness. An air laid web 63 is thereby formed.
In addition, the air-laid nonwoven fabric layer 3 of the above-mentioned embodiment, 13a, 13b, 23a, 23b, 33 can also be manufactured in the manufacturing line 100. In this case, the production line 100 may be formed by omitting the pair of rolls 113 and the pair of heat rolls 114.

Referring back to FIGS. 12 (a) and 12 (b), the air-laid web 63 on which the concavo-convex portion is formed is bonded to the spunbond nonwoven fabric 58 by an adhesive 65 such as a hot melt adhesive. In the present embodiment, the spunbond nonwoven fabric 58 has a basis weight of 10 to 20 g / m ² . By bonding the spunbond nonwoven fabric 58 to the air laid web 63, the strength of the disposable fiber product cloth 61 is improved, and the unevenness of the air laid web 63 is not broken. Note that provided in the production of air-laid web 63, the air permeability on the conveyor belt 104 mesh is ^{500mm 3 / (mm 2 × sec} ) or ^{2000mm 3 / (mm 2 × sec} ) following paper (e.g., tissue paper) Pulverized pulp may be stacked on the paper. In this case, in the air flow forming device 103, the pulverized pulp is sucked onto the transport belt 104 through the paper having air permeability. A laminated sheet provided with breathable paper, air laid web 63 and spunbonded nonwoven fabric 58 is excellent in water absorbency and breathability of liquid, so it can be used for disposable sheets, disposable towels, and disposable bath towels. It is suitable. Moreover, if various printings are performed on paper, the designability of disposable sheets, towels and bath towels will be improved. In this case, if printing is performed on the inner surface of the paper (the surface on which the crushed pulp is stacked), the ink does not adhere to the user.

Eighth Embodiment
In the disposable fiber product fabric 61 of the seventh embodiment, the air-laid web 63 and the spunbond nonwoven fabric 58 are joined by hot melt. However, hot melts have a distinctive odor. For this reason, when the cloth 61 for disposable fiber products of the seventh embodiment is used as a sheet, towel, or bath towel, it may be considered that the user cares about odor. Therefore, in the present embodiment, a cloth 71 for disposable fiber products not using hot melt will be described.
FIG. 14 shows a longitudinal sectional view of a disposable fiber product cloth 61 according to an eighth embodiment of the present invention. In FIG. 14, the fabric 71 for disposable fiber products is formed by bonding a paper material 72 having cellulose fibers, an air laid 73 on which crushed pulp is stacked, and a non-woven fabric 68 with a water-soluble binder to form a laminated sheet 76. There is.

The paper material 72 has a permeability of 500 mm ³ / (mm ² × sec) or more and 2000 mm ³ / (mm ² × sec) or less, and has a basis weight of about 8 g / m ² to 20 g / m ² , crepe paper Etc.
The air laid 73 has a basis weight of about 40 g / m ² to 100 g / m ² , may contain 100% of pulp fibers, and may be mixed with about 10 to 40% of heat fusible composite fibers.
Nonwoven 68, spunbonded nonwoven fabric, spunlace nonwoven fabric, a thermal bond nonwoven fabric, chemical bonded nonwoven, can be used various nonwoven such as air-through nonwoven fabric, the basis weight is 20 g / m ² approximately from 8 g / m ^2.

(Manufacture of laminated sheet 76)
FIG. 15 is a schematic view showing an air laid production line 200. Hereinafter, although the manufacturing method of the lamination sheet 76 is demonstrated using FIG. 15, the same code | symbol is attached | subjected about the same structure as the manufacturing line 100 of FIG. 13, and the description is abbreviate | omitted or simplified.
The paper material fed from the paper material raw fabric 120 is conveyed on the mesh-like conveyance belt 104 along the conveyance direction. In a state where the paper material is sucked by the air flow forming device 103, the pulverized pulp and the heat-fusible composite fiber are sucked by the air flow forming device 103 through the paper material. As a result, the pulverized pulp and the heat fusible composite fiber are stacked on the paper material. The heat fusible composite fiber can be omitted.
The paper material, the ground pulp and the heat fusible composite fiber are embossed in shape by a pair of embossing rolls 106. In place of the pair of emboss rolls 106, the paper material, the crushed pulp and the heat-fusible composite fiber may be pressed by a flat roll. Alternatively, a pair of emboss rolls 106 may be provided between the paper material raw fabric 120 and the air flow forming device 103 to emboss the paper material alone to soften the paper material. When the paper material alone is embossed, the paper material, the crushed pulp and the heat fusible composite fiber are preferably compressed by a flat roll.

When the paper material, the pulverized pulp and the heat fusible composite fiber pass through the pair of embossing rolls 106, the nonwoven fabric from the nonwoven fabric raw fabric 121 is supplied from above, and is pressed by the pressing rolls 122 to form a piled sheet. Although one pressing roll 122 is provided in FIG. 15, another pressing roll may be provided below the conveyance belt 104.
The piled-up sheet is applied and impregnated with a water-soluble binder and a surfactant from the non-woven fabric side by the first spray device 107. The water-soluble binder and the surfactant are impregnated into the ground pulp and the heat-fusible composite fiber through the non-woven fabric by the spray pressure of the first spray device 107 and the suction by the first suction device 108. Thereafter, the non-woven fabric is bonded to the pulverized pulp by drying by the first dryer 109, and the pulverized pulps are also bonded to each other. Further, the heat fusible composite fiber is melted by the drying by the first dryer 109.
The dried fiberboard sheet is applied and impregnated with a water-soluble binder and a surfactant from the paper material side by the second spray device 110. The water-soluble binder and the surfactant are impregnated into the pulverized pulp and the heat-fusible composite fiber through the paper material by the spray pressure of the second spray device 110 and the suction by the second suction device 111. Thereafter, the paper material is bonded to the crushed pulp by drying by the second dryer 112, and the crushed pulps are also bonded. Further, the heat fusible composite fiber is melted by the drying by the second dryer 112.
The description of the portions of the pair of rolls 113 and the pair of heat rolls 114 which overlap with the description of FIG. 13 will be omitted. When the paper of the seventh embodiment or the paper material of the present embodiment is provided, the paper or paper material may be wrinkled. In such a case, the wrinkles can be removed by passing the laminated sheets 66 and 76 through the pair of heat rolls 114. The pair of rolls 113 may be flat rolls or may be omitted.
In addition, a spray device may be added between the pair of embossing rolls 106 and the pressing roll 122 to spray the water-soluble binder onto the pulverized pulp and the heat-fusible composite fiber.
Water-soluble binders (for example, water-soluble acrylic binders) sprayed from the first spray device 107 and the second spray device 110 have less odor than adhesives such as hot melt. For this reason, the odor of the fabric 71 for disposable fiber products can be reduced by joining the fiber-stacked sheet consisting of a plurality of layers without using the hot melt as in the present embodiment. Thereby, the cloth 71 for disposable textiles of this embodiment can be used for the disposable goods used in the position near a nose, such as disposable sheets, a towel, and a bath towel. Moreover, if various printing is performed on a paper material, the designability of disposable sheets, towels and bath towels will be improved. In this case, if printing is performed on the inner surface of the paper material (the surface on which the crushed pulp is stacked), the ink does not adhere to the user. Also, the paper material may be the skin side of the sheet. In this case, the surface of the paper material has a portion covered with the acrylic and a portion not covered with the acrylic, so that it has a good touch. Similarly, the surface of the non-woven fabric also has a part covered with acrylic and a part not covered with acrylic, so that it has a good touch.
Also in the fabric 61 for textiles of the seventh embodiment, application to disposable sheets, disposable towels, and disposable bath towels is possible as described above, and the amount of adhesive used can be reduced or eliminated. By applying the odorant or the fragrance, it is possible to further reduce the user's concern about the odor.

Ninth Embodiment
FIG. 16 shows a longitudinal sectional view of a disposable textile product cloth 81 according to a ninth embodiment of the present invention. The laminated sheet 86 is an air-laid non-woven fabric in which fiber pieces such as pulp fibers, heat fusible composite fibers, and rayon fibers are stacked to be processed into a sheet. The basis weight of the laminated sheet 86 is preferably about 50 to 100 g / m ² .
The laminated sheet 86 is composed of a first surface area 83, a second surface area 84, and an intermediate area 85 sandwiched therebetween. A binder is impregnated in the first surface area 83 and the second surface area 84, and the fiber pieces are bonded to each other by the binder. Thereby, in the first surface area 83 and the second surface area 84, strength can be improved, dissipation of paper dust can be prevented, and wrinkles can be prevented.
Also, in the intermediate region 85, the amount of binder impregnation is small or almost zero. For this reason, the fiber pieces of the intermediate region 85 are not substantially bonded to each other. Thus, the intermediate region 85 forms a region excellent in water absorbency and flexibility.
Examples of the binder include EVA, PVA, acrylic, vinyl acetate resin, epoxy resin, CMC and the like as described above.
In addition, paper such as tissue paper or crepe paper may be laminated on the first surface area 83. The paper and the first surface area 83 are bonded by an adhesive such as a hot melt adhesive. By laminating the paper on the outside of the first surface area 83, it is possible to prevent the dissipation of paper dust from the air-laid non-woven fabric. In addition, since clear printing can be performed on paper, the design of the laminated sheet 86 can be improved.

Tenth Embodiment
FIG. 17 shows a longitudinal sectional view of a disposable textile product cloth 81 according to a tenth embodiment of the present invention. The laminated sheet 96 is formed by laminating a first air laid nonwoven fabric layer 93, a second air laid nonwoven fabric layer 94, and a third air laid nonwoven fabric layer 95. The layers are joined together by an adhesive such as a hot melt adhesive.
The first air laid nonwoven fabric layer 93 and the third air laid nonwoven fabric layer 95 are formed by the production line 100 of FIG. In addition, the second air laid nonwoven layer 94 is larger in the embossed shape imparted by the embossing roll than the embossed shape imparted to the first air laid nonwoven layer 93 and the third air laid nonwoven layer 95 in the production line 100 of FIG. Be deep.
After laminating the first air laid nonwoven fabric layer 93, the second air laid nonwoven fabric layer 94, and the third air laid nonwoven fabric layer 95, they may be further pressed through an embossing roll or a flat roll.
As mentioned above, although each embodiment of this invention was described, you may combine the above-mentioned embodiment suitably. Moreover, although the example which used the adhesive agent and the binder was described as joining in the above-mentioned embodiment, you may use heat sealing | fusion and ultrasonic bonding.

In order to provide the same water absorbency as a cotton fiber fabric material, the present inventor focuses on the water absorption rate, and configures the sheet main body so that the water absorption rate by the drop method of JIS L1907 is 0.4 seconds or less. We found that we needed to As described above, by using a water-absorbent fiber sheet made of cellulose fibers made of pulp raw material, it effectively functions as a substitute for textile products such as conventional towels, and it is a disposable that can solve the problem of stains and coloring as well. It turned out that a type of textile substitute could be obtained.

The fabric for disposable fiber products according to each embodiment of the present invention described above has a water absorption rate of 0.4 seconds or less, preferably 0.0 seconds, according to the JIS L1907 drop method in the sheet body. If the water absorption speed exceeds 0.4 seconds, the water absorption performance for applying as a substitute for a cotton fiber fabric material such as a towel will be inferior. When the water absorption rate by the JIS L1907 dripping method is 0.4 seconds or less, preferably 0.0 seconds, it means having a water absorbability similar to or comparable to a cotton fiber fabric material such as a towel. Therefore, the disposable fiber product formed by using the fabric for disposable fiber products according to each embodiment of the present invention has excellent water absorbency, and is extremely excellent in wiping characteristics of moisture and sweat. Become. As such, the disposable fiber product according to each embodiment of the present invention functions sufficiently as a substitute for conventional textile products. The fabric for disposable fiber products according to each embodiment of the present invention has excellent water absorption because the sheet main body is formed to include a water absorbent fiber sheet layer, and the water absorbent fiber sheet layer is a sheet main body. It is based on the peculiar structure of being located in the outer surface part of and being formed including the cellulose fiber which consists of a pulp raw material. The disposable fiber product fabric according to each embodiment of the present invention is provided with excellent water absorbency, so that the disposable fiber product formed by using the fabric is, for example, a towel as a substitute for a conventional textile product. , And handkerchiefs, etc., which makes it possible to realize a disposable-type product which can not be achieved with conventional cotton fiber textile products.

It is preferable that the cloth for disposable fiber products which concerns on each embodiment of this invention is 40 mm or more of water absorption height by JIS L1907 Byrek method in a sheet | seat main body. If the water absorption height is less than 40 mm, the water holding capacity for application as a substitute for a cotton fiber fabric material such as a towel is inferior. That the water absorption height by the JIS L1907 Byrek method is 40 mm or more means having a water holding capacity similar to or comparable to a cotton fiber fabric material such as a towel. Therefore, by setting the water absorption height by the JIS L1907 Byrek method to 40 mm or more, not only the above-mentioned water absorption but also the water holding capacity becomes excellent, and the disposable fiber product formed by using the fabric has water absorption In terms of water holding capacity, it has superior properties as a substitute for conventional textile products.

The disposable fiber product according to each embodiment of the present invention can be configured as a towel, handkerchief, bedclothes, bathrobe, sheets, towel basket, bedding such as a pillow cover, a rug, a blanket, or the like.

Hereinafter, the present invention will be described in more detail by way of specific examples corresponding to the fabric for disposable fiber products according to the respective embodiments of the present invention.

Example 1
Air-laid non-woven sheets (weight per unit area 50 g / m ² ) and paper sheets were used as materials for forming the sheet body. A 100% pulp paper (a paper sheet for tissue paper: a basis weight of 12 g / m ² ) was used as the paper sheet. The air-laid non-woven sheet and the paper sheet were partially adhered with a hot melt adhesive (a hot melt adhesive basis weight 1.2 g / m ² ) to obtain a sheet body having a total basis weight 63.2 g / m ² .

(Example 2)
As a material for forming the sheet body, only an air-laid non-woven sheet (having a basis weight of 50 g / m ² ) was used. An elastic member made of polyurethane is interposed between two upper and lower airlaid nonwoven sheets, and two upper and lower airlaid nonwoven sheets are coated with a hot melt adhesive (1.2 g / m ^{2 of} hot melt adhesive basis weight) applied to the elastic member. Were bonded to give a sheet body having a total basis weight of 101.2 g / m ² .

(Example 3)
As materials for forming the sheet main body, air-laid non-woven sheets (weight per area 50 g / m ² ), paper sheets (paper sheets for tissue paper with 100% pulp: weight per-area 12 g / m ² ), spunbond non-woven sheets (weight per area) An amount of 10 g / m ² ) was used. The upper layer is laminated by partial adhesion with the hot melt adhesive (the hot melt adhesive basis weight 1.2 g / m ² ) in such a manner that the air laid nonwoven sheet, the paper sheet, and the spunbond nonwoven sheet overlap in order from the top The laminate is formed by partial adhesion with a hot melt adhesive (a hot melt adhesive basis weight 1.2 g / m ² ) so that a spunbond nonwoven sheet, a paper sheet, and an air laid nonwoven sheet overlap in order from the top. The lower layer was formed. Hot melt adhesive coated on an elastic member by interposing an elastic member made of polyurethane between the upper spunbond nonwoven sheet and the lower spunbond nonwoven sheet (1.2 g / m ^{2 of the} hot melt adhesive basis weight) Thus, the upper spunbond nonwoven sheet and the lower spunbond nonwoven sheet were bonded to obtain a sheet body having a total basis weight of 150 g / m ² .

(Example 4)
As materials for forming the sheet body, spunlace non-woven sheet (100% rayon fiber: 30 g / m ² basis weight) and paper sheet (paper sheet for 100% pulp tissue paper: 12 g / m ² basis weight) . The spunlaced non-woven sheet and the paper sheet were partially adhered with a hot melt adhesive (hot melt adhesive basis weight 1.2 g / m ² ) to obtain a sheet body having a total basis weight of 43.2 g / m ² .

(Example 5)
As materials for forming the sheet body, spunlace non-woven sheet (100% rayon fiber: 30 g / m ² basis weight) and paper sheet (paper sheet for 100% pulp tissue paper: 12 g / m ² basis weight) . The upper layer is formed by laminating by partial adhesion with a hot melt adhesive (a basis weight of 1.2 g / m ^{2 of} the hot melt adhesive) in such a manner that the spunlace nonwoven fabric sheet and the paper sheet are sequentially stacked from the top The lower layer was formed by partial adhesion with a hot melt adhesive (a basis weight of 1.2 g / m ^{2 of} the hot melt adhesive) in such a manner that the Spunlace nonwoven fabric sheet and the spunlace nonwoven fabric sheet sequentially overlap from the top. An elastic member made of polyurethane is interposed between an upper paper sheet and a lower paper sheet, and the upper paper is coated with a hot melt adhesive (hot melt adhesive basis weight 1.2 g / m ² ) applied to the elastic member. The sheet and the lower layer paper sheet were bonded to obtain a sheet body having a total basis weight of 87.6 g / m ² .

(Example 6)
As materials for forming the sheet main body, a spunlace non-woven sheet (consisting of 50% of rayon fibers and 50% of polyester fibers: 40 g / m ^{2 in} basis weight) and air-laid non-woven sheet (50 g / m ^{2 in} basis weight) were used. The air-laid non-woven sheets are placed one on top of the other so that the air-laid non-woven sheets are positioned between the upper and lower two spun-laid non-woven sheets, and between the upper spun lacy non-woven sheet and the air laid non-woven sheet Each hot melt adhesive (hot melt adhesive basis weight 1.2 g / m ² ) was applied and partially adhered to each other to obtain a sheet body having a total basis weight 132.4 g / m ² .

(Reference Example 1)
A commercially available face towel is referred to as Reference Example 1.

The water absorption rate by the JIS L1907 drop method and the water absorption height by the JIS L1907 Bylek method were measured for each of the sheets of Examples 1 to 6 and Reference Example 1 by the measurement methods shown below.

Measuring method of water absorption speed by JIS L1907 drop method:
Each sheet of Examples 1 to 6 and Reference Example 1 is cut to collect five test pieces each having a size of 200 mm × 200 mm. Next, the test piece is attached to the test piece holding frame, placed between the light source and the observer, and adjusted so that the height from the surface of the test piece to the tip of the burette is 10 mm. The observer observes from an angle at which the reflection of light by water is clearly visible. Next, a drop of water is dropped from the burette onto the surface of the test piece, and from the moment the water droplet reaches the surface of the test piece, the specular reflection disappears as the test piece absorbs the water drop, and only the wet state remains Measure the time with a stopwatch to one second.

Measurement method of water absorption height by JIS L1907 Byrek method:
Each sheet of Examples 1 to 6 and Reference Example 1 is cut to collect five test pieces each having a size of 200 mm × 25 mm. Next, fix the test piece on a horizontal bar supported on the water surface of the water tank and then lower the horizontal bar so that 20 mm ± 2 mm of the lower end of the test piece is immersed in water. Leave it for 10 minutes. After standing, measure the height of rise of water by capillary action to 1 mm by scale.

The measurement of the water absorption rate by the JIS L1907 dropping method was performed five times in each of the examples and the reference examples, and the average value was determined. In the measurement of the water absorption rate, water was dropped on the surface of the test piece in each example to perform measurement, but in Examples 1 and 4, the measurement was also performed when water was dropped on the back surface of the test piece.
The front and back sides referred to here are as follows.

The surface of the test piece of Example 1: Air-laid non-woven layer The back surface of the test piece of Example 1: Paper material layer The surface of the test piece of Example 2: Air-laid non-woven layer The surface of the test piece of Example 3: Air-laid non-woven layer Example The surface of the specimen of 4: Spunlace nonwoven fabric layer The back surface of the specimen of Example 4: The surface of the specimen of paper material layer Example 5: The surface of the specimen of spunlace nonwoven fabric Example 6: Spunlace nonwoven fabric layer

The measurement of the water absorption height by the JIS L1907 Byrek method was performed once and the results were observed. The measurement results of the water absorption rate are shown in Table 1, and the measurement results of the water absorption height are shown in Table 2.

As apparent from the measurement results of water absorption rate shown in Table 1, it is understood that all of Examples 1 to 6 exert excellent water absorption rate. Moreover, as is clear from the measurement results of water absorption height shown in Table 2, it can be seen that all of Examples 1 to 6 have excellent water holding capacity (water absorption height).

The above-described embodiment uses a material including a water-absorbent fiber sheet layer formed by including cellulose fibers made of pulp raw material, and therefore, unlike the case of using a cotton fiber fabric material, manufacture is simple and easy. Furthermore, since the material cost is low, there is an advantage that the manufacturing cost can be low. Thus, according to the present embodiment, it is possible to provide a new disposable fiber fabric for replacing the conventional cotton fiber fabric, and by using such fabric to manufacture a disposable fiber product, the conventional cotton fiber fabric can be provided. It has become possible to provide a new style of textile product of disposable type that replaces textile products such as material towels.

Although the above-described embodiment is a disposable type product, it has the same product performance as a textile product such as a towel made of a conventional cotton fiber fabric material. Have. Thus, the present embodiment sufficiently functions as a substitute for textile products such as towels made of conventional cotton fiber fabric materials.

The above-mentioned embodiment uses cellulose fiber made of pulp raw material as a raw material and additionally is a disposable fiber product, therefore the problem of deterioration and discoloring of the fabric due to repeated washing and the stain due to the adhesion of the liquid, There is no problem of coloring, and a comfortable feeling of use can always be obtained.

1, 11, 21, 31, 41 Fabrics for disposable textile products 2, 12, 22, 32, 42 Sheet body 3, 13 a, 13 b, 23 a, 23 b Air laid non-woven layer 4, 14 a, 14 b, 24, 34 a, 34 b Paper material Layer 28, 38a, 38b Spunlace nonwoven layer

Claims (18)

A disposable fiber product fabric comprising a pulp layer containing pulp fibers, a binder and a surfactant. The fabric for disposable fiber products according to claim 1, wherein the surfactant is a polyether type. The fabric for disposable fiber products according to claim 1, wherein the pulp layer has an uneven shape. The fabric for disposable fiber products according to claim 1, further comprising a non-woven fabric layer bonded to the pulp layer. The fabric for disposable fiber products according to claim 1, wherein the pulp layer is air-laid in which the pulp fibers obtained by grinding pulp are bound by the binder. The fabric for disposable fiber products according to claim 1, wherein the binder is an acrylic resin. The fabric for disposable fiber products according to claim 1, wherein the pulp fiber is mixed with heat fusible composite fiber. What is claimed is: 1. A disposable textile product fabric comprising a sheet body formed to include a water absorbent fiber sheet layer, wherein
The water absorbent fiber sheet layer is formed on the outer surface portion of at least one of the sheet main bodies and includes cellulose fibers made of a raw material containing a pulp raw material,
A fabric for disposable fiber products, wherein the water absorption speed by the dropping method according to JIS L1907 is 0.4 seconds or less in the sheet main body. The fabric for disposable fiber products according to claim 8, wherein the water absorption height by the JIS L1907 Byrek method is 40 mm or more in the sheet main body. The fabric for disposable fiber products according to claim 8, wherein the water absorbent fiber sheet layer is formed of an air laid nonwoven fabric, a spunlace nonwoven fabric containing 50% or more of rayon fibers, or a paper material. The fabric for disposable fiber products according to claim 8, wherein the sheet body is a laminated sheet formed by laminating the same or different kinds of water absorbent fiber sheet layers. An elastic member having elasticity is interposed between layers of the laminated sheet constituting layer forming the laminated sheet, the laminated sheet constituting layers are joined to each other, and the elastic member is joined to the laminated sheet constituting layer The fabric for disposable fiber products according to claim 11. The fabric for disposable textile products according to claim 12, wherein a large number of irregularities are formed on the sheet body by the elastic member. A disposable fiber product formed by using the disposable fiber product fabric according to any one of claims 8 to 13. The disposable textile according to claim 14, wherein the disposable textile is configured as a towel, a handkerchief, a sleepwear, a bathrobe, a sheet, a towel basket, a pillow cover, a lap or a blanket. An elastic member,
A first liquid-absorbent sheet and a second liquid-absorbent sheet sandwiching the elastic member and joined to the elastic member;
A fiber sheet having an elastic surface, having a weir surface formed by shrinking the first liquid-absorbent sheet and the second liquid-absorbent sheet by the elastic force of the elastic member. A first surface area and a second surface area impregnated with a binder;
An intermediate region sandwiched between said first and second surface regions and impregnated with less binder than said first and second surface regions. Fabric for disposable fiber products, comprising a pulp layer containing a pulp fiber and a binder.

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