JP5611683B2 - Reinforcing cloth with adhesive layer - Google Patents

Description

  The present invention relates to a reinforcing fabric having a woven fabric and an adhesive layer, and more specifically, a woven fabric having a special weaving method using a plurality of warp yarns and a plurality of weft yarns, and a specific portion of the woven fabric. It is related with the reinforcement cloth which has the adhesion layer provided only.

  For waterproofing a building rooftop or the like, a sheet waterproofing method and a coating film waterproofing method in which a waterproof paint or the like is applied and formed are known (Patent Document 1). Of these, the waterproof coating method has high strength and surface hardness, is strong, and has excellent fatigue resistance, dimensional stability, etc., so that it can be used on floors such as roofs, fences, residential verandas, rooftops, balconies, and parking lots. Widely used for waterproofing walls, ceilings, etc.

  In the waterproof coating method, the use of a reinforcing cloth is recommended in order to increase the mechanical strength of the formed waterproof layer. That is, it is known that a reinforcing cloth prevents cracking of a waterproof layer and the like by first spreading a reinforcing cloth and applying a waterproof paint or the like on the reinforcing cloth (Patent Documents 2 and 3).

  However, when waterproofing a vertical surface such as a wall surface or a lower surface such as a ceiling surface, the reinforcing cloth falls due to gravity, etc., so that one person is pressing the reinforcing cloth against a predetermined surface while another person is In addition, there is a problem that resin mortar, paint, etc. must be applied on the reinforcing cloth, and two people are required for waterproofing work, which increases labor costs. In addition, when the wind blows, the reinforcing cloth moves, which makes it difficult to apply.

  In order to solve such problems, an adhesive layer is provided on the reinforcing cloth, the adhesive layer is attached to a wall surface or ceiling surface to be waterproofed, and the reinforcing cloth is fixed to the surface, and then mortar is attached to the reinforcing cloth. A method of applying from above has been devised. With this method, it is not impossible to work alone.

  However, the reinforcing cloth needs to spread mortar etc. to the back side (lower side) of the reinforcing cloth (otherwise, since the applied mortar does not contact the wall surface, the waterproof layer cannot be fixed to the wall surface. ), The mesh hole of the reinforcing fabric (also called “basket hole”) needs to have a certain area or more, and the weaving method of the reinforcing fabric is inevitably sparse. The problem is that it can be formed only on loosely woven yarn, and as a result, it lacks adhesion to the wall surface etc., for example, when strong wind blows, the reinforcing cloth moves and application becomes difficult. It was still not resolved.

  In order to solve this problem, a method is known in which a pressure-sensitive adhesive layer formed on a release paper is once transferred to the surface of a woven fabric to make a reinforcing fabric having the pressure-sensitive adhesive layer. If it does in this way, the adhesive layer of area sufficient for adhesiveness can be ensured.

  However, if there is an adhesive layer on the entire surface of the woven fabric, the mortar does not reach the back side (lower side) of the reinforcing fabric, and the applied mortar does not contact the wall surface and the waterproof layer cannot be fixed to the wall surface. It will be. Therefore, the pressure-sensitive adhesive layer requires a portion through which mortar and the like can pass, but when the area of the portion through which such mortar and the like can pass increases, it becomes impossible to secure a sufficient area of the pressure-sensitive adhesive layer. When the area of the portion that can be passed is reduced, there is a problem that mortar or the like does not spread to the back side (lower side) of the reinforcing cloth. Further, even with this method, the problem that the reinforcing cloth moves due to lack of adhesion to a wall surface or the like, for example, when strong wind blows, has not been solved yet.

Japanese Patent Laid-Open No. 60-065858 JP 2006-316613 A JP 2007-231519 A

  The present invention has been made in view of the above-described background art, and the problem is that when applying a mortar, a resin mortar, or a paint (hereinafter abbreviated as “mortar etc.”) in the coating film waterproofing method, An object of the present invention is to provide a reinforcing cloth having high adhesion to a wall surface or the like.

  As a result of intensive studies to solve the above problems, the present inventor did not rely on a method of transferring the pressure-sensitive adhesive layer formed on the release paper onto the surface of the woven fabric, that is, the mesh hole was formed. Even if the adhesive layer is not provided on the woven fabric, the reinforcing fabric with sufficiently high adhesion to the wall surface can be obtained by making the woven fabric specific. As a result, the present invention was found.

That is, the present invention is a reinforcing fabric having a woven fabric and an adhesive layer, used when forming a waterproof layer with mortar, resin mortar or paint,
The woven fabric has a plurality of warp yarns arranged in parallel adjacent to each other without being substantially twisted to form a warp row, and a plurality of weft yarns are not substantially twisted with each other. Adjacently arranged in parallel to form a weft row, and at the intersection of the warp row and the weft row, each adjacent warp yarn is woven so as to pass on the opposite side of the weft Is,
The present invention provides a reinforcing fabric, wherein the adhesive layer is provided on at least one surface of the woven fabric so as not to substantially block the mesh hole of the woven fabric.

  The present invention also provides the above-mentioned reinforcing fabric, wherein the adhesive layer is provided by directly applying an adhesive solution or a dispersion to at least one surface of the woven fabric.

Further, the present invention is a method for producing a reinforcing fabric having a woven fabric and an adhesive layer, which is used when forming a waterproof layer with mortar, resin mortar or paint,
A plurality of warp yarns are arranged adjacent to each other without being substantially twisted in parallel to form a warp string, and a plurality of weft yarns are arranged adjacent to each other without being substantially twisted in parallel. Make up the weft row,
Tandem nozzles so that the adjacent warp yarns pass through the opposite sides of the weft yarn at the intersection of the warp yarn rows and the weft yarn row, and the adjacent weft yarns pass through the same upper and lower sides with respect to the warp yarn. Weave by flying each weft through, then
The reinforcement is characterized in that the adhesive layer is provided on at least one surface of the woven fabric by directly applying an adhesive solution or a dispersion so as not to substantially block all the mesh holes of the woven fabric. A method for producing a fabric is provided.

  Further, the present invention provides a waterproof coating method using the above-mentioned reinforcing cloth, and a coating film produced using such a waterproof coating method A waterproof layer is provided.

  Moreover, this invention provides the coating waterproofing layer characterized by having what said hardened | cured cloth and mortar or resin mortar hardened | cured.

  If the reinforcing cloth of the present invention is used, the above-mentioned problems can be solved and the above-mentioned problems can be solved, and when applying mortar or the like in the coating film waterproofing method, a reinforcing cloth having high adhesion to a wall surface or the like can be provided. it can. As a result, when a mortar or the like is applied to a wall surface or the like, an operator who presses the reinforcing cloth against the wall surface or the like is not required, and even one person can perform the waterproof coating method.

  In addition, the reinforcing cloth does not move even when the wind blows due to gravity, and it is easy to waterproof the coating film on the horizontal surface such as the floor surface, the vertical surface such as the wall surface, and the lower surface such as the ceiling surface. It becomes like this.

  More specifically, a plurality of warp yarns are arranged adjacently in parallel without substantially twisting each other to form a warp row, and a plurality of weft yarns are substantially twisted together. Since the woven fabric is woven by arranging adjacently in parallel and forming a weft row, the warp row and the weft row are flat and have a large area, so the adhesive is applied to the wide area. Since the adhesive layer is formed, the above-described effects such as improvement of the adhesion of the reinforcing cloth can be obtained. In addition, the warp row and the weft row are flat and have a large area without the need to provide an adhesive layer that has the disadvantage of blocking even the mesh holes as in the transfer method using release paper. Even if there is an adhesive layer only on the substantially surface of the weft row, it is possible to provide a reinforcing fabric that exhibits the above-described effects and can be sufficiently adhered to a wall surface or the like.

It is a schematic diagram which shows an example of the weaving method of the reinforcement cloth of this invention woven so that two adjacent wefts may pass the same upper and lower sides with respect to three warp yarns. It is a schematic diagram which shows an example of the weaving method of the reinforcement cloth of this invention currently woven so that three adjacent wefts may pass through the same upper and lower sides with respect to three warps. It is a schematic diagram which shows an example of the weaving method of the reinforcement cloth of this invention woven so that two adjacent wefts may pass through the same upper and lower sides with respect to five warp yarns. It is a schematic diagram which shows an example of the weaving method of the reinforcing fabric of this invention woven so that two adjacent wefts may alternately pass through different sides of three warp yarns. It is a schematic cross section of one row of yarns showing the form of the adhesive layer in the reinforcing fabric of the present invention having a woven fabric and an adhesive layer. (A) When one yarn row has one yarn (b) Three yarns in one yarn row are arranged in parallel and closely adjacent to each other without substantially twisting each other. When forming (c) When three yarns of one yarn row are arranged substantially in parallel with each other without being substantially twisted to form a yarn row It is a figure for demonstrating the definition of the aspect-ratio of a warp row and a weft row.

  Hereinafter, the present invention will be described, but the present invention is not limited to the following specific embodiments, and can be arbitrarily modified within the scope of the technical idea.

The reinforcing cloth of the present invention is used in a waterproof coating method for forming a waterproof layer with a paint. The coating film waterproofing method is not limited to the following as long as the waterproof layer is formed by the coating film. Specifically, for example, first, the base is adjusted according to a conventional method, and the primer is used as a roller. Using a brush or the like, for example, about 0.2 kg / m ^{2 is} applied, and then a paint for forming a coating film is prepared by mixing two liquids if it is of the two liquid type. 4 kg / m ² (this is abbreviated as “undercoating”), then a reinforcing cloth is applied, and then a paint for forming a coating film is applied, for example, about 1.5 kg / m ² (this is referred to as “1 layer Abbreviated as “eye coating”), and then the coated surface is checked, and if there are pinholes or cracks, if necessary, they are filled with a predetermined material, and then a paint for forming a coating film, for example, about 1. Apply 4 kg / m ² (this is called “2nd layer coating (Abbreviated as “cloth”), and then, if necessary, a top coat is applied, for example, by applying about 0.2 kg / m ² .

The reinforcing fabric of the present invention is used in such a waterproof coating method, and satisfies at least all the following requirements.
(A) It has a woven fabric and an adhesive layer. (B-1) The woven fabric has a warp string in which a plurality of warp yarns are arranged side by side without being substantially twisted with each other. ,
(B-2) A plurality of weft yarns are arranged in parallel adjacent to each other without being substantially twisted to form a weft row,
(B-3) At the intersection of the warp yarn row and the weft yarn row, the adjacent warp yarns are woven so as to pass on the opposite side to the weft yarn,
(C) The adhesive layer is provided on at least one surface of the woven fabric so as not to substantially block all the mesh holes of the woven fabric.

  The term “one yarn” in the present invention means one yarn in which the inside is uniformly packed, or a state in which natural fibers or synthetic fibers are aligned and twisted or cannot be separated from each other. Say what you are. Even if the raw short fibers are twisted by spinning and stretched long to make a single spun yarn (spun yarn, staple yarn), the raw long fibers are twisted or made difficult to separate, The yarn may be spun into a single yarn (filament yarn). Hereinafter, warp and weft are collectively referred to as “yarn”.

  “Two yarns” in the reinforcing fabric of the present invention is a yarn in a state of being easily separated into two, and when making the reinforcing fabric of the present invention, when two are wound around cheese in parallel, Or it is called “two yarns” when weaving two pieces separately. Although not limited, specifically, for example, when two yarns are set up on a cheese stand, if necessary, a tenser is passed, and two yarns are woven by using an EDP device via a tandem nozzle. Is a reinforcing cloth using two yarns.

  Therefore, a short fiber, a long fiber, or the above-mentioned “one yarn” twisted together is one yarn and not two yarns. Further, “three or more yarns” and “a plurality of yarns” are also defined as extensions from the above “two yarns”. On the contrary, what is wound around a plurality of cheeses or wound in a state of being aligned in parallel with one cheese and can be easily separated into a plurality of cheeses is "multiple yarns" It is not “one thread”. The above is true for both warp and weft.

  1 to 4 show schematic views of the weaving method of the reinforcing fabric of the present invention. In FIG. 1, FIG. 2 and FIG. 4, three warp yarns are arranged adjacently in parallel without substantially twisting each other to constitute a warp yarn row. In FIG. 3, five warp yarns are arranged in parallel adjacent to each other without being substantially twisted to form a warp yarn row. The number of warp yarns constituting one warp row is not particularly limited, but is preferably 3 to 5, and particularly preferably 3.

  If the number of warp yarns constituting one warp row is too large, the area of the warp row will be too large in plan view. Therefore, a square hole formed by the warp row and the weft row (hereinafter abbreviated as “mesh hole”). May be too small, the mesh may be too fine, or the area ratio of the entire mesh hole portion may be too small, making it difficult for mortar or the like to enter under the reinforcing cloth.

  On the other hand, if the number of warp yarns constituting one warp row is too small, the reinforcing fabric is difficult to flatten as a whole, and the area occupied by the warp row on the surface of the reinforcing fabric is reduced, so that the adhesive is applied only to a narrow area. In other words, the area of the adhesive layer is reduced, and the adhesion of the reinforcing cloth to the wall surface or the like may be reduced. As a result, an operator who presses the reinforcing cloth against the wall surface becomes necessary, or the reinforcing cloth may fall from a predetermined place or be displaced due to gravity or when wind blows.

  In FIG. 1 to FIG. 4, the adjacent warp yarns are schematically drawn apart from each other, but the warp yarns may or may not partially touch each other and are almost always in contact except at the intersection. preferable. Moreover, although it is essential that they are arranged in parallel without being twisted, the adjacent warp yarns may cross each other and return to the original. Also in this case, it can be said that “without twisting” (included).

  On the other hand, with regard to the weft yarns, in FIG. 1, FIG. 3 and FIG. 4, two weft yarns are arranged adjacently in parallel without substantially twisting each other to constitute a weft row. In FIG. 2, three wefts are arranged in parallel adjacent to each other without being substantially twisted to form a weft string. The number of wefts constituting one weft row is not particularly limited, but 2 to 4 is preferable, and 2 is particularly preferable. Hereinafter, the warp row and the weft row may be collectively referred to as “yarn row”.

  The problem when the “number of wefts constituting one weft row” is too large is the same as in the case of the above-described warp yarns. Further, the problem when the “number of wefts constituting one weft row” is too small (that is, when there is one weft) is the same as in the case of the warp described above. That is, if the number of wefts constituting one weft row is one, it will be difficult to flatten, so the adhesive will only ride on a small area, and the above effect may not be obtained due to lack of adhesiveness. is there.

  The reinforcing cloth of the present invention is also characterized in that it does not provide an adhesive layer that blocks part of the mesh hole as in the transfer method using a release paper. It is important to increase the area of the adhesive layer. In that respect, the reinforcing fabric of the present invention has a warp row and a weft row that are both flat and sufficiently large in area, so that even if there is an adhesive layer only on the warp row and the weft row, the above-mentioned effect is exerted and the wall is sufficiently provided. It is possible to provide a reinforcing fabric that can be strongly adhered.

  In the reinforcing fabric of the present invention, it is essential that each adjacent warp yarn is woven so as to pass on the opposite side to the weft yarn at the intersection.

  As shown in FIG. 4, the reinforcing fabric of the present invention is shown in FIGS. 1 to 3 even when the adjacent wefts pass through the opposite sides of the warp at the intersection. As described above, at the intersecting portion, the respective adjacent wefts may be woven so as to pass on the same upper and lower sides with respect to the warp.

  As shown in FIGS. 1 to 3, when all the wefts of one weft row are woven so as to pass through the same upper and lower sides with respect to the warp yarn at the intersecting portion, in the form as shown in FIGS. When the number of wefts constituting one weft row is set to 2 or more (in the case of a plurality of wefts), the flattening becomes more flat and the above-described effect can be obtained.

  FIG. 5 is a view showing a mode of forming an adhesive layer in a reinforcing cloth having a woven fabric and an adhesive layer, and is a cross-sectional view of one row of warp rows or one row of weft rows. As shown in FIG. 5A, when the number of yarns is one, the adhesive is only attached directly under one yarn, and the area of the adhesive layer is reduced. However, as shown in FIG. 5B, which is an example of the present invention, for example, three yarns are arranged in parallel and closely adjacent to each other without being substantially twisted to form a yarn row. In this case, not only three adhesives are attached, but also the gap between the threads, so the area of the adhesive layer is increased and the adhesion to the wall surface and the like is increased. Furthermore, as shown in FIG. 5 (c), which is an example of the present invention, for example, three yarns are arranged in parallel and somewhat apart from each other without being substantially twisted to form a yarn row. In this case, since the adhesive is attached to the gap between the separated threads by surface tension, the area of the adhesive layer is further increased, and the adhesion to the wall surface and the like is further increased.

  In the reinforcing cloth of the present invention, as shown in FIGS. 1 to 3, when a reinforcing cloth is manufactured that is woven so that all the wefts of one weft row pass on the same side of the upper and lower sides of the warp yarns at the intersecting portion The method for introducing the weft yarn is not particularly limited, and specific examples include the following methods. For example, when one weft row is composed of n (2 ≦ n) wefts, n wefts are set up on a cheese stand, and if necessary, n wefts are arranged in parallel through a tensor so that the weft yarns can be easily blown. Then, weaving n weft yarns simultaneously from the main nozzle via a tandem nozzle and weaving. At this time, although not particularly necessary, weft separation wires can be installed before and after the EDP device (specifically, the tensor inlet and the tandem nozzle inlet / outlet) so that the wefts do not get entangled with each other. As shown in FIG. 1 or FIG. 3, when n is 2, two wefts are set up on a cheese stand, two are arranged in parallel with a tensor, and two wefts are simultaneously blown from the nozzle through the EDP device.

  In this way, the form as shown in FIGS. 1 to 3 is more specific in the form as shown in FIGS. 1 to 3 than the form as shown in FIG. Since there is no crossing (not inserted), there is no gap due to the crossing of the warp yarns in the wefts at the crossing part. Accordingly, in the form as shown in FIGS. 1 to 3, bubbles generated at the time of application are blocked by the reinforcing cloth and are less likely to appear on the surface.

  The thickness of the warp is not particularly limited, as long as it is the optimum thickness for the purpose of lightly retaining cracks that are embedded in the coating film and are mainly generated in the coating film, which is the conventional purpose of the reinforcing cloth. Good. For example, a range of 0.1 to 1 mm is preferable, a range of 0.13 to 0.7 mm is more preferable, and a range of 0.2 to 0.5 mm is particularly preferable.

  The thickness of the weft is not particularly limited as long as it is an optimum thickness in order to achieve the same effect as described above. The range of 0.1-1 mm is preferable, the range of 0.13-0.7 mm is more preferable, and the range of 0.2-0.5 mm is especially preferable.

  The aspect ratio of the cross section of one warp row is not particularly limited, but is preferably 2 or more, more preferably 2.5 to 7, and particularly preferably 3 to 5. Moreover, the aspect ratio of the cross section of one weft row is not particularly limited, but is preferably 1.5 or more, more preferably 1.7 to 5, and particularly preferably 2 to 3. Here, the “aspect ratio of the cross section” is a length (width) (b) in a plane direction assuming a rectangle circumscribing the warp row or the cross section of the weft row at a location sufficiently away from the intersection. ) Divided by the length (thickness) (a) in the thickness direction, and is defined by “b / a” in FIG. If the aspect ratio is too small, it may not be flat and the above-described effects may not be obtained.

  The density of the warp row and the density of the weft row is not particularly limited as long as the conventional purpose of the reinforcing cloth is achieved, but it is 2 rows / inch (1 density per 12.7 mm) to 30 rows / It is preferable that the distance is 1 inch (one density per 0.85 mm). The spacing is more preferably 4 to 20 rows / inch, and particularly preferably 6 to 15 rows / inch. If the density is too high, the area of one mesh hole becomes small, and the paint may not flow down.

  The material of the warp and the weft is not particularly limited, and the materials used for the reinforcing cloth are usually used. Examples thereof include inorganic substances such as glass fibers; synthetic organic polymer fibers such as polyester, polyvinyl formal, polyvinyl acetal, polyamide, and polypropylene; natural fibers such as silk, cotton, and wool. Of these, polyester, polyvinyl acetal and the like are preferable.

  In the reinforcing fabric of the present invention, it is essential that the above-mentioned requirement (C) the adhesive layer is provided on at least one surface of the woven fabric so as not to substantially block all the mesh holes of the woven fabric. It is. In order to provide the pressure-sensitive adhesive layer in such a form, it is preferable to provide the pressure-sensitive adhesive layer by directly applying a pressure-sensitive adhesive solution or dispersion to at least one surface of the woven fabric.

  The adhesive layer is preferably provided on the entire surface of the yarn row in order to improve the adhesiveness as much as possible. As shown in FIG. 5B and FIG. 5C, it is preferable that an adhesive is also applied between the yarns of the yarn row in that the area of the adhesive layer can be increased. Since the “adhesive layer” is provided in a lattice shape only on the surface of the yarn row, it is a “layer” in a broad sense, and is not a layer that fills a wide and closed plane.

  As a method for forming the adhesive layer, as a method that is not directly applied, there is a method of making a reinforcing fabric having an adhesive layer by transferring the adhesive layer formed on the release paper once to the surface of the woven fabric. However, in this method, an adhesive layer having a sufficient area for adhesion can be secured, so it goes in a good direction. However, since the mesh hole is closed, mortar is spread to the back side (lower side) of the reinforcing cloth. In some cases, the applied mortar or the like does not contact the wall surface and the waterproof layer cannot be fixed to the wall surface. In such a method, even if a portion through which mortar or the like can pass is provided in the pressure-sensitive adhesive layer, if the area of the portion through which mortar or the like can pass increases, a sufficient area of the pressure-sensitive adhesive layer cannot be secured, while mortar or the like can pass through. When the area of the portion becomes small, mortar or the like does not spread to the back side (lower side) of the reinforcing cloth.

  As described above, the reinforcing cloth according to the present invention has a flat yarn row, and for example, as shown in FIG. 5B and FIG. Even if the hole is not covered with an adhesive layer, sufficient adhesion to a wall surface or the like can be obtained.

  In order to provide an adhesive layer on at least one side of the woven fabric so as not to substantially block all the mesh holes of the woven fabric, an adhesive solution or dispersion is directly applied to at least one side of the woven fabric. It is preferable to do. If a pressure-sensitive adhesive solution or dispersion having a sufficiently low viscosity is directly applied to the woven fabric, the pressure-sensitive adhesive layer can be provided so as not to substantially block all the mesh holes. The direct coating method is not particularly limited, but a coating method using a roll coater, curtain coater, brush coating, spray coater, dipping or the like is preferable. By adjusting the pressure-sensitive adhesive solution or dispersion to an appropriate viscosity, it is possible to form a pressure-sensitive adhesive layer by surface tension or the like above or below the yarn row while substantially not closing the mesh holes. .

Therefore, a particularly preferred method for producing the reinforcing fabric of the present invention is the following method in combination with the weaving method of the woven fabric. That is,
A plurality of warp yarns are arranged adjacent to each other without being substantially twisted in parallel to form a warp string, and a plurality of weft yarns are arranged adjacent to each other without being substantially twisted in parallel. Make up the weft row,
In the intersecting portion of the warp yarn row and the weft yarn row, each adjacent warp yarn is woven so as to pass on the opposite side with respect to the weft yarn,
Each adjacent weft is woven by flying each weft through a tandem nozzle so that it passes the same side up and down with respect to the warp,
The reinforcement is characterized in that the adhesive layer is provided on at least one surface of the woven fabric by directly applying an adhesive solution or a dispersion so as not to substantially block all the mesh holes of the woven fabric. It is a manufacturing method of cloth.

  There is no limitation in particular as an adhesive used for formation of an adhesion layer, A well-known thing is used. Specifically, for example, (meth) acrylic acid ester, vinyl chloride, vinyl acetate, vinyl butyral, polyisobutylene, styrene butadiene, isoprene, chloroprene, chlorinated rubber, etc. Examples thereof include a polymerization system. The (meth) acrylic acid ester type is particularly preferable because it is excellent as an aqueous emulsion.

  The pressure-sensitive adhesive may be applied in the form of a pressure-sensitive adhesive solution dissolved in an organic solvent, or may be applied in the form of a dispersion in which the pressure-sensitive adhesive is dispersed in the form of an emulsion or the like. Among these, application as a water-based emulsion is particularly preferable.

  The viscosity at the time of direct application is set so low that it does not block the mesh hole of the woven fabric. If the viscosity is too low, an adhesive layer having a sufficient film thickness (attachment amount) may not be formed.

The mass ratio of the woven fabric and the adhesive layer in the reinforcing fabric of the present invention is not particularly limited as long as the reinforcing fabric adheres sufficiently well to the wall surface or the like, but preferably 10 to 30 g / m ^{2 of the} adhesive layer per 1 m ^{2 of} the woven fabric. 15-25 g / m ² is more preferable, and 17-23 g / m ² is particularly preferable. If the mass ratio of the adhesive layer is too small, sufficient adhesion may not be obtained, and if the mass ratio of the adhesive layer is too large, the mesh hole may be blocked or the adhesiveness will not increase any more. It may be wasted. In addition, when there is no interleaf such as a polymer film between the reinforcing cloth and the reinforcing cloth, the adhesive layer side of the reinforcing cloth and the side without the adhesive layer of the reinforcing cloth are strongly bonded to each other. When it is peeled off, it becomes difficult to peel off, and if it is peeled off forcibly, the reinforcing cloth may break.

  The waterproof layer in the present invention is formed of mortar, resin mortar or paint. The reinforcing cloth of the present invention is used for waterproofing of a horizontal upper surface such as a floor surface, a vertical surface such as a wall surface, and a horizontal lower surface such as a ceiling surface. Although not particularly limited, in order to make use of the excellent adhesiveness of the reinforcing cloth of the present invention, it is preferably used for waterproofing of a substantially vertical surface such as a wall surface or a substantially horizontal lower surface such as a ceiling surface. .

  Any known mortar or resin mortar can be used. Also, paints that are commercially available as waterproof paints, such as urethane paints and polyester paints, can be used.

  EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples and comparative examples. However, the present invention is not limited to these examples unless it exceeds the gist.

Production Example 1
30 warp (cotton count) polyester fiber is used as the warp, and a warp string consisting of 3 warp yarns is woven at a density of 8 rows / inch, 200d polyester fiber is used as the weft thread, and 8 weft rows consisting of 2 weft threads are used. A woven fabric as shown in FIG. 1 as a schematic diagram was manufactured by weaving at a density of rows / inch.

  Specifically, two wefts are set up on a cheese stand, the two wefts are arranged in parallel through a tensor according to a conventional method, and then passed through an EDP device so that the wefts can be easily blown, and then passed through a tandem nozzle. Two weft yarns were simultaneously blown from the nozzle, and as shown in FIG. 1, weft yarns were inserted at right angles to the three warp yarns so that the adjacent warp yarns were on opposite sides of the weft yarn. That is, a reinforcing cloth was woven by inserting two wefts in parallel between three warps. In this way, the two weft yarns were woven together with the warp yarns without being twisted.

  As described above, the two wefts were drawn together and inserted into the warp, and the woven fabric schematically shown in FIG. 1 was produced. The width of the warp row was 0.8 mm, and the width of the weft row was 0.9 mm. The size of the mesh hole was 2.3 mm × 2.5 mm. In addition, the aspect ratio (b / a) of the cross section of the weft row was 2.

Next, an acrylic ester copolymer aqueous emulsion (manufactured by Toyo Ink Manufacturing Co., Ltd., acrylic pressure-sensitive adhesive, BPW6103) was directly applied onto the woven fabric using a general roll coater. The coating amount was 20.0 g based on 1 m ² of the woven fabric as a solid content after the dispersion medium (mainly water) was distilled off (after drying). This was bonded to a film to produce a winding reinforcing fabric.

Production Example 2
A woven fabric schematically shown in FIG. 2 was produced in the same manner as in Production Example 1 except that the number of wefts was changed to 3. That is, three wefts are set up on a cheese stand, three wefts are simultaneously inserted into an EDP apparatus, three wefts are simultaneously skipped, and each warp adjacent to each other at right angles to the three warps On the other hand, the weft was inserted so that it might be on the opposite side. Therefore, the three wefts were woven together with the warp yarns without being twisted. Specifically, in Production Example 1, it was produced by changing the number of yarns.

  As described above, the three wefts were drawn together and inserted into the warp to produce a woven fabric schematically shown in FIG. The obtained woven fabric had a warp row width of 0.8 mm and a weft row width of 1.3 mm. The size of the mesh hole was 2.3 mm × 2.1 mm. The aspect ratio (b / a) of the cross section of the weft row was 3.

  Subsequently, except that the coating amount was adjusted so as to have the same coating thickness as in Production Example 1, an adhesive layer was provided in the same manner as in Production Example 1 to produce a reinforcing fabric.

Production Example 3
A woven fabric schematically shown in FIG. 3 was produced in the same manner as in Production Example 1 except that the warp yarn was changed to 5. That is, in the same manner as in Production Example 1, two weft yarns were aligned and inserted into warp yarns to produce a woven fabric schematically shown in FIG. Specifically, in Production Example 1, it was produced by changing the number of yarns.

  The obtained woven fabric had a warp row width of 1.3 mm and a weft row width of 0.9 mm. The size of the mesh hole was 1.8 mm × 2.5 mm. In addition, the aspect ratio (b / a) of the cross section of the weft row was 2.

  Subsequently, except that the coating amount was adjusted so as to have the same coating thickness as in Production Example 1, an adhesive layer was provided in the same manner as in Production Example 1 to produce a reinforcing fabric.

Production Example 4
A woven fabric shown in the schematic diagram of FIG. 4 was produced in the same manner as in Production Example 1 except that each adjacent weft yarn was woven so as to pass on the opposite side up and down with respect to the warp yarn at the intersection. Specifically, in Production Example 1, it was produced by changing the number of yarns.

  The obtained woven fabric had a warp row width of 0.8 mm and a weft row width of 1.2 mm. The size of the mesh hole was 2.3 mm × 2.5 mm. Moreover, the aspect ratio (b / a) of the cross section of the weft row was 2.7.

  Subsequently, except that the coating amount was adjusted so as to have the same coating thickness as in Production Example 1, an adhesive layer was provided in the same manner as in Production Example 1 to produce a reinforcing fabric.

Comparative production example 1
A reinforcing cloth was produced in the same manner as in Production Example 1 except that the adhesive layer was not provided.

Comparative production example 2
For comparison, except that the weft yarn constituting the weft row is changed to one, a woven fabric is produced in the same manner as in Production Example 1, and the coating amount is adjusted so as to have the same coating film thickness as in Production Example 1. Except for the above, an adhesive layer was provided in the same manner as in Production Example 1 to produce a reinforcing fabric.

Comparative production example 3
For comparison, a woven fabric is produced in the same manner as in Production Example 1 except that both the warp and weft yarns constituting the yarn row are changed to one so that the coating film thickness is the same as in Production Example 1. Except for adjusting the coating amount, an adhesive layer was provided in the same manner as in Production Example 1 to produce a reinforcing fabric.

Comparative production example 4
In Production Example 1, instead of directly applying the adhesive in the form of an emulsion on the woven fabric using a roll coater, the adhesive once formed at 20.0 g / m ² on the release paper. A sticky layer was provided by transferring the entire layer onto the surface of the woven fabric to produce a reinforcing fabric.

Evaluation Example 1
The reinforcing fabrics produced in Production Examples 1 to 4 and Comparative Production Examples 1 to 4 were evaluated as follows.
That is, the reinforcing fabric manufactured in Production Examples 1 to 4 and Comparative Production Examples 1 to 4 was attached to about 1 m ² of a vertical wall of concrete, respectively, and then a resin mortar with adjusted concentration was applied to the entire surface.

When the waterproof layer was provided, the following items were evaluated and judged.
<Adhesion>
A: Even if wind blows, there is no peeling of the reinforcing cloth.
○: The reinforcing cloth does not peel off due to gravity, but the reinforcing cloth may peel off when a strong wind blows.
X: The reinforcing cloth may be peeled off due to gravity. Xx: The reinforcing cloth does not stick to the wall.

<Workability>
○: Work alone.
X: Work alone cannot be performed, and a person holding the reinforcing cloth is required separately.

Evaluation example 2
<Opening of mesh hole>
It was visually observed whether or not the pressure-sensitive adhesive was present in the mesh hole of the reinforcing cloth and the adhesive layer blocked the mesh hole.
○: Substantially all mesh holes are not closed.
X: Some mesh holes are blocked.
XX: Almost all mesh holes are blocked.

The configuration of the reinforcing fabric is summarized in Table 1, and the evaluation results are summarized in Table 2.

  From the results in Table 2, the reinforcing fabrics of the present invention produced in Production Examples 1 to 4 were excellent in both adhesion and workability. However, the reinforcing fabric manufactured in Comparative Manufacturing Example 1 that does not have an adhesive layer and the reinforcing fabric manufactured in Comparative Manufacturing Examples 2 and 3 with a small number of yarns are inferior in both adhesion and workability. It was.

  The reinforcing cloth formed with the adhesive layer formed by transferring the adhesive layer on the release paper (the reinforcing cloth produced in Comparative Production Example 4) had no problem in adhesion and workability, but almost all The mesh hole was closed, and the opening of the mesh hole was inferior, and the resin mortar did not pass through the reinforcing cloth and did not reach the back of the reinforcing cloth.

  The reinforcing cloth of the present invention does not move even when the wind blows due to gravity, and the waterproof cloth is not only applied to a horizontal surface such as a floor surface but also to a vertical surface such as a wall surface and a lower surface such as a ceiling surface. Since it can be easily processed, it can be used in fields that require waterproofing, such as wall surfaces, floor surfaces, ceiling surfaces, etc., such as residential verandas, rooftops, balconies, parking lots, including vertical surfaces such as wall surfaces and lower surfaces such as ceiling surfaces. It is widely used.

DESCRIPTION OF SYMBOLS 1 Warp thread 2 Weft 3 Crossing part 4 Mesh hole 5 Adhesive layer 11 Warp string 12 Weft string

Claims (10)

A reinforcing fabric having a woven fabric and an adhesive layer, used when forming a waterproof layer with mortar, resin mortar or paint,
The woven fabric has a plurality of warp yarns arranged in parallel adjacent to each other without being substantially twisted to form a warp row, and a plurality of weft yarns are not substantially twisted with each other. Adjacent and arranged in parallel to form a weft row,
At the intersection of the warp yarn row and the weft yarn row , adjacent warp yarns among a plurality of warp yarns in the warp yarn row are woven so as to pass on the opposite side with respect to the entire weft yarn row ,
In the crossing portion, the entire weft row composed of a plurality of wefts is woven so as to pass on the same side up and down with respect to the warp yarns ,
The reinforcing fabric, wherein the adhesive layer is provided on at least one surface of the woven fabric so as not to substantially block all the mesh holes of the woven fabric.   The reinforcing fabric according to claim 1, wherein the adhesive layer is provided by directly applying an adhesive solution or a dispersion onto at least one side of the woven fabric. The reinforcing cloth according to claim 1 or 3, wherein 3 to 5 warps constitute the warp string. The reinforcing cloth according to any one of claims 1 to 3 , wherein two to four wefts constitute the weft row. The reinforcing fabric according to any one of claims 1 to 4 , wherein an aspect ratio of a cross section of the weft row is 1.5 or more. The warp yarn rows are woven perpendicular to the weft yarn rows at intervals of 2 to 30 rows / inch, and the weft yarn rows are orthogonal to the warp yarn rows at intervals of 2 to 30 rows / inch, respectively. The reinforcing cloth according to any one of claims 1 to 5 , wherein the reinforcing cloth is woven. A method for producing a reinforcing fabric having a woven fabric and an adhesive layer, used when forming a waterproof layer with mortar, resin mortar or paint,
A plurality of warp yarns are arranged adjacent to each other without being substantially twisted in parallel to form a warp string, and a plurality of weft yarns are arranged adjacent to each other without being substantially twisted in parallel. Make up the weft row,
In the intersecting portion of the warp row and the weft row , the adjacent warp yarns are woven so as to pass on the opposite side with respect to the entire weft row ,
In the crossing portion, the entire weft row composed of a plurality of wefts is woven by flying each weft yarn via a tandem nozzle so that it passes through the same side up and down with respect to the warp yarn,
The reinforcement is characterized in that the adhesive layer is provided on at least one surface of the woven fabric by directly applying an adhesive solution or a dispersion so as not to substantially block all the mesh holes of the woven fabric. Fabric manufacturing method. A coating film waterproofing method using the reinforcing cloth according to any one of claims 1 to 6 . A waterproof coating layer produced using the waterproof coating method according to claim 8 . A waterproofing coating film comprising the reinforcing cloth according to any one of claims 1 to 6 and a cured mortar or resin mortar.

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