WO2015026068A1 - Breathable waterproof fabric and method of manufacturing same - Google Patents

Abstract

The present invention relates to a breathable waterproof fabric and a method of manufacturing the same. The breathable waterproof fabric comprises: a fabric base material; a solid hot melt adhesive stacked on the fabric base material and having passages through which air circulates; and a porous material adhered on the solid hot melt adhesive and having a plurality of air holes.

Description

Water-permeable waterproof fabric and manufacturing method thereof

The present invention relates to a water-permeable waterproof fabric, and more particularly, to a water-permeable waterproof fabric and a method of manufacturing the same, which are formed by adhering a textile substrate and a porous substrate using a hot melt adhesive.

Recently, interest in health and leisure activities has increased, and functional materials have been applied to various fields. In particular, the material with the moisture-permeable waterproof function has been emphasized more and more moisture permeability riding the boom.

Moisture-proof waterproof fabric is a functional fabric with excellent moisture-permeable waterproofing that prevents sweat and prevents rain, and is applied for climbing and outdoor wear of outdoor clothes, sleeping bags, etc., and its application range is widened.

The moisture-permeable waterproof fabric prevents water from penetrating, while the sweat from the body becomes water vapor and is discharged to the outside, thereby providing comfort, and the garment made of the moisture-proof waterproof fabric is excellent in wearing comfort.

Watertight materials are classified into three materials: PTFE film, polyester film, and PU lamination. Gore-Tex is the world's leading waterproofing market with PTFE film.However, new materials that can replace existing waterproofing materials are continuously developed. Is being tried.

Korean Patent Publication No. 10-1106679 discloses a polyurethane nanofiber web composed of polyurethane nanofibers having an average diameter of 1,000 nm or less, and some of the polyurethane nanofibers are moisture-curable polyurethane nanofibers, and a liquid adhesive is sprayed. Disclosed is a technique for manufacturing a moisture-permeable waterproof fabric by thermal compression with a sprayed fabric.

However, such fabric can reduce the shrinkage rate of the polyurethane nanofiber web at room temperature, thereby facilitating the adhesion process with the fabric. However, by spraying the liquid adhesive, the fabric has a non-uniform coating distribution of the liquid adhesive in the fabric, so that the water vapor transmission efficiency is improved. It is not uniform, there is a problem that the liquid adhesive penetrates the fabric to hinder the moisture permeation.

The present invention has been made in view of the problems of the prior art, and its object is to provide a moisture-permeable waterproof fabric and a method of manufacturing the same that can improve the adhesion between the fabric substrate and the porous substrate using a solid hot melt adhesive.

Another object of the present invention is to provide a moisture-permeable waterproof fabric and a method for manufacturing the same, which can reduce the weight of the fabric by bonding the lightweight porous substrate to the fabric substrate with a solid hot melt adhesive.

Another object of the present invention is to provide a moisture-permeable waterproof fabric and a method for manufacturing the same, which increase the area for performing the moisture-permeable function, thereby improving the moisture-permeable efficiency.

Another object of the present invention is to form an adhesive to bond the fabric substrate and the porous substrate in a solid pattern or web to perform an environmentally friendly process, and the phenomenon of yellowing, staining, bleaching or warping of moisture-permeable waterproof fabrics The present invention provides a moisture-permeable waterproof fabric and a method of manufacturing the same.

Another object of the present invention is to interpose a hot melt web adhesive having a plurality of pores between the first fabric substrate and the porous substrate, and laminated a second fabric substrate formed with a solid hot melt adhesive powder or hot melt web adhesive on the porous substrate, By providing a moisture-permeable waterproof fabric by heat bonding, to improve the adhesive strength of the first fabric substrate and the porous substrate, and to increase the moisture-permeable waterproof efficiency and at the same time to provide a moisture-proof waterproof fabric and a method for manufacturing the same. have.

In order to achieve the above object, a waterproof fabric for waterproofing according to an embodiment of the present invention, a fabric substrate; Hot melt adhesive laminated on the fabric substrate; And a porous substrate adhered to the fabric substrate by the hot melt adhesive.

The hot melt adhesive may be a hot melt web adhesive or a hot melt powder adhesive having a plurality of pores formed by accumulation of heat-adhesive fibers.

In addition, according to another embodiment of the present invention, the waterproof fabric is a first fabric substrate; A porous substrate adhered to the first fabric substrate by a hot melt web adhesive; And a second fabric substrate adhered to the porous substrate by hot melt powder adhesive or hot melt web adhesive.

On the other hand, a method for producing a moisture-permeable waterproof fabric for achieving another object of the present invention, the step of feeding the laminated structure of the fabric substrate, the solid hot melt web adhesive and the porous substrate with a calender roll to which heat is applied; Melting the solid hot melt web adhesive by heat applied from the calender roll and adhering to the fabric substrate and the porous substrate; And cooling the solid-state hot melt web adhesive adhered to the fabric substrate and the porous substrate by cold wind applied from a cooling fan.

In the present invention, by heat-bonding the fabric substrate and the porous substrate with a solid-state hot melt adhesive to implement a moisture-permeable waterproof fabric, by reducing the bonded area of the fabric substrate and the porous substrate, by increasing the area performing a relatively moisture-permeable function, moisture permeation efficiency And the waterproof efficiency can be improved, and the water vapor transmission efficiency can be made uniform.

In the present invention, the low-weight nanofibers are accumulated and the lightweight substrate is adhered to the fabric substrate using a solid hot melt adhesive powder or a hot melt web adhesive, thereby reducing the weight of the fabric.

In the present invention, by applying a colorless, tasteless, odorless thermoplastic hot melt adhesive to implement the fabric, it is harmless to the human body and excellent in breathability, pollution-free, non-toxic, solvent-free environmentally friendly process can be performed.

In the present invention, by bonding the fabric substrate and the porous substrate with a solid hot melt adhesive, it is possible to prevent yellowing, contamination, bleaching or warping of the moisture-permeable waterproof fabric, and to improve the adhesion between the fabric substrate and the porous substrate.

In the present invention, the hot melt web adhesive is interposed between the first fabric substrate and the porous substrate, and the solid hot melt adhesive powder or the second fabric substrate on which the hot melt web adhesive is formed is laminated on the porous substrate, followed by a hot melt web adhesive and a solid hot melt adhesive powder. By heat-bonding the first fabric substrate and the porous substrate, and the porous substrate and the second fabric substrate to implement a water-permeable waterproof fabric, it is possible to improve the water vapor transmission efficiency and waterproof efficiency, and to make the water vapor efficiency uniform.

1a and 1b is a conceptual cross-sectional view for explaining a method for manufacturing a moisture-permeable waterproof fabric according to the first embodiment of the present invention,

2 is a conceptual partial plan view for explaining a solid hot melt adhesive pattern coated on a textile substrate according to a first embodiment of the present invention;

3 is a conceptual cross-sectional view for explaining a solid hot melt adhesive coated on a textile substrate according to a first embodiment of the present invention;

4 is a photograph of a fabric substrate coated with a solid hot melt adhesive according to a first embodiment of the present invention;

5 is a schematic structural diagram of an apparatus for forming a solid hot melt adhesive pattern on a textile substrate according to the first embodiment of the present invention;

6 is a schematic configuration diagram of an electrospinning apparatus for manufacturing a nanofiber web according to a first embodiment of the present invention;

7A to 7C are conceptual cross-sectional views for explaining a first modification of the method for manufacturing a waterproof moisture-permeable fabric according to the first embodiment of the present invention;

8 is a conceptual cross-sectional view for explaining a second modification of the method for manufacturing a moisture-permeable waterproof fabric according to the first embodiment of the present invention;

9A and 9B are conceptual views illustrating a method of forming an adhesive on a nanofiber web in a method of manufacturing a waterproof moisture permeable fabric according to a first embodiment of the present invention;

10 is a conceptual cross-sectional view for explaining a third modification of the method of manufacturing a moisture-permeable waterproof fabric according to the first embodiment of the present invention;

11 is a conceptual cross-sectional view of a moisture-permeable waterproof fabric according to a second embodiment of the present invention;

12 is a schematic partial view for explaining a hot melt web adhesive applied to a moisture-permeable waterproof fabric according to a second embodiment of the present invention;

13 is a flow chart of a method for manufacturing a moisture-permeable waterproof fabric according to a second embodiment of the present invention;

14 is a conceptual diagram for explaining a process of calendering a laminated structure according to a second embodiment of the present invention;

15 is a block diagram of a calender roll type device for bonding a textile substrate and a porous substrate with a solid hot melt web adhesive according to the present invention;

16 is a block diagram of a flat panel laminating type device for bonding a textile substrate and a porous substrate with a solid hot melt web adhesive according to the present invention;

17A to 17C are conceptual cross-sectional views for explaining a modification of the manufacturing method of the moisture-permeable waterproof fabric according to the second embodiment of the present invention;

18 is a conceptual cross-sectional view of a waterproof waterproof fabric capable of improving the adhesive strength according to the third embodiment of the present invention;

19a to 19c is a conceptual cross-sectional view for explaining a method for manufacturing a waterproof moisture-permeable fabric according to a third embodiment of the present invention,

20a to 20c is a conceptual cross-sectional view for explaining a method for manufacturing a moisture-permeable waterproof fabric according to a third embodiment of the present invention,

21 and 22 are test reports showing the results of evaluating the water pressure and moisture permeability of the moisture-permeable waterproof fabric according to the third embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail for the practice of the present invention.

In the present invention, by adhering the fabric substrate and the porous substrate with a hot melt adhesive in a solid state (hereinafter referred to as a 'solid state') having an air passage, the moisture-permeable fabric is realized, thereby adhering the textile substrate to the porous substrate. It is possible to improve the moisture permeation efficiency by reducing the reduced area and increasing the area for performing the relative moisture permeation function.

Here, the solid-state hot melt adhesive may use a hot melt web having a plurality of pores formed by accumulating hot melt powder or heat-adhesive fibers applied to the fabrics of the first to third embodiments described below.

The porous substrate may be applied to one of nanofiber webs, nonwoven fabrics, and laminated structures thereof having a plurality of pores formed by accumulation of nanofibers.

The fabric substrate includes all materials for manufacturing casual clothes, sports clothes and the like with fabric such as fabric.

1A and 1B, the method of manufacturing a moisture-permeable waterproof fabric according to the first embodiment of the present invention forms a solid hot melt adhesive pattern 110 on a fabric base 100 such as fabric. (FIG. 1A). Thereafter, the nanofiber web 200 having the microporous structure accumulated and formed by the nanofiber made of a polymer material is thermally bonded to the fabric substrate 100 using the solid-state hot melt adhesive pattern 110 (FIG. 1b)

Here, the solid-state hot melt adhesive pattern 110, as shown in Figure 2 and 3, it is preferable to implement a dot-type pattern consisting of the solid-state hot melt powder adhesive which is spaced apart from each other on the fabric substrate 100. At this time, after the solid hot melt adhesive is coated on the fabric base 100 in a pattern shape and cooled, the solid hot melt adhesive pattern 110 is formed.

Thus, in the present invention, by heat-bonding the nanofiber web to the fabric substrate with a solid hot melt adhesive pattern, the solid-state hot melt adhesive pattern for bonding is located only in the local region of the fabric substrate and the nanofiber web to adhere the fabric substrate and the nanofiber web The moisture permeation efficiency can be improved by reducing the surface area to increase the area performing the moisture permeation function.

On the other hand, in the prior art, when the liquid adhesive is sprayed onto the fabric substrate, and then the nanofiber web is heated and pressed with a hot roll to bond, the distribution of the sprayed liquid adhesive is uneven, and the liquid adhesive is applied to the localized area. The moisture permeation efficiency of the specific area of the fabric is relatively low, and the moisture permeation efficiency is not uniform, and the sprayed liquid adhesive penetrates most areas of the fabric substrate, thereby preventing moisture permeation. However, the present invention solves the problem. There are technical features.

The solid hot melt adhesive pattern 110 may be one of thermoplastic, urethane, polyamide, polyethylene, E.V.A., polyester, and P.V.C. systems.

The nanofiber web 200 is formed by electrospinning a spinning solution in which a polymer material and a solvent are mixed to form nanofibers and stacking the nanofibers.

Here, the electrospinning method applied to the present invention may be any one of general electrospinning, air electrospinning (AES), centrifugal electrospinning, and flash-electrospinning. It is also possible to use.

As the polymer material used in the present invention, electrospinning is possible, and examples thereof include hydrophilic polymers and hydrophobic polymers, and these polymers may be used alone or in combination of two or more thereof.

The polymer material usable in the present invention is not particularly limited as long as it can be dissolved in an organic solvent for electrospinning and can form nanofibers by electrospinning. For example, polyvinylidene fluoride (PVdF), poly (vinylidene fluoride-co-hexafluoropropylene), perfuluropolymer, polyvinylchloride, polyvinylidene chloride or copolymers thereof, polyethylene glycol di Polyethylene glycol derivatives including alkyl ethers and polyethylene glycol dialkyl esters, poly (oxymethylene-oligo-oxyethylene), polyoxides including polyethylene oxide and polypropylene oxide, polyvinylacetate, poly (vinylpyrrolidone- Vinyl acetate), polystyrene and polystyrene acrylonitrile copolymers, polyacrylonitrile (PAN), polyacrylonitrile copolymers including polyacrylonitrile methyl methacrylate copolymers, polymethyl methacrylate, polymethyl methacrylate Acrylate copolymers or mixtures thereof.

In addition, the polymer materials that can be used include polyamide, polyimide, polyamideimide, poly (meth-phenylene isophthalamide), polysulfone, polyetherketone, polyetherimide, polyethylene terephthalate and polytrimethylene terephthalate. , Aromatic polyesters such as polyethylene naphthalate, and the like, polyphosphazenes such as polytetrafluoroethylene, polydiphenoxyphosphazene, poly {bis [2- (2-methoxyethoxy) phosphazene], polyurethane and Polyurethane copolymers including polyetherurethane, cellulose acetate, cellulose acetate butyrate, cellulose acetate propionate, and the like.

Among the polymer materials, PAN, polyvinylidene fluoride (PVdF), polyester sulfone (PES: Polyester Sulfone) and polystyrene (PS) may be used alone, or polyvinylidene fluoride (PVdF) and polyacrylonitrile (PAN). ) Or a mixture of PVdF and PES, PVdF and thermoplastic polyurethane (TPU).

Therefore, the polymers usable in the present invention are not particularly limited to thermoplastic and thermosetting polymers capable of electrospinning.

In preparing the spinning solution, the polymer material is preferably 5 to 22.5 wt%.

Here, if the content of the polymer material is less than 5% by weight, it is difficult to form a fibrous shape, and even if particles are formed or spun, rather than spinning due to spraying, spraying is not performed. ) Is formed a lot, and the volatilization of the solvent is not made well, the nanofiber web is melted during the calendering process of the web, the pore (pore) clogging occurs. In addition, when the content of the polymer material exceeds 22.5% by weight, the viscosity rises, so that solidification occurs at the surface of the solution, which makes it difficult to spin for a long time.

In order to prepare the spinning solution, the solvent mixed with the high molecular material may use a monocomponent solvent such as dimethylformamide (DMF), but in the case of using the bicomponent solvent, boiling point (BP) It is preferable to use a two-component solvent mixed with a high and a low point).

The two-component mixed solvent according to the present invention is preferably used by mixing a high boiling point solvent and a low boiling point solvent in a weight ratio of 7: 3 to 9: 1. When the high boiling point solvent is less than 7, there is a problem that the polymer is not completely dissolved, and when it exceeds 9, the low boiling point solvent is too small to volatilize the solvent from the spun fibers so that the formation of a web is smooth. The problem does not occur.

If only a solvent having a high boiling point is used, spinning is not performed and spray is formed, even though particles are formed instead of fibers, or even if spinning occurs, a lot of beads are formed. Due to the poor volatilization of the solvent, partial melting occurs during the lamination process of the web, thereby causing a phenomenon in which pores are blocked.

In addition, when only a low boiling point solvent is used, volatilization of the solvent occurs very quickly, and thus, many fibers are generated on the needle of the spinning nozzle, which causes the spinning trouble.

In the present invention, when the polymer material is PES and PVdF, respectively, the two-component mixed solvent is, for example, DMAc (N, N-dimethylacetoamide: BP-165 ° C.) as a high boiling point solvent and acetone (acetone: BP-56) as a low boiling point solvent. ℃) can be used in a 9: 1 ratio by weight, and when the polymer material is PEI and PVdF, respectively, NMP (N-methylpyrrolidone: BP-202 ~ 204 ℃) and THF (Terahydrofuran: BP-67 ℃) are used. Can be mixed to 9: 1.

In this case, the mixing ratio between the two-component mixed solvent and the entire polymeric material is preferably set to about 8: 2 by weight.

After the electrospinning of the spinning solution in which the polymer material and the solvent are mixed using a multi-hole spinning pack, a nanofiber web formed in multiple layers is obtained, and a thermal compression process, for example, calendering is performed.

Here, calendering is performed at about 70-190 ° C. at high temperature and high pressure so that the pore size of the nanofiber web is 0.8 μm or less.

In the present invention, when the nanofiber web is formed, the accumulation amount of nanofibers is set in the range of 5gsm to 10gsm, especially less than 5gsm in the 2.5 layer, preferably 2gsm to 3gsm, so that light weight nanofibers are accumulated and lightened. By forming and adhering the lightweight nanofiber web to the fabric substrate in a solid hot melt adhesive pattern, the weight and manufacturing cost of the moisture-permeable waterproof fabric can be reduced.

Referring to FIG. 4, after the hot melt adhesive pattern is coated on the fabric substrate 100, the hot melt adhesive pattern region 110a in contact with the fabric substrate 100 by heat applied while passing through a heating tunnel described below is formed. It is melted and soaked into the fabric substrate (100). Then, when the hot melt adhesive is cooled after passing through the heating tunnel, the hot melt adhesive pattern is in a solid state, and the hot melt adhesive pattern region 110a in contact with the fabric substrate 100 penetrates inside the fabric substrate 100. The adhesive strength between the solid state hot melt adhesive pattern 110 and the fabric substrate 100 is excellent.

As described above, in the present invention, the hot melt adhesive in the solid state is applied to the textile substrate in the form of a micro dot, thereby improving the adhesion with the nanofiber web.

In addition, in the present invention by applying a colorless, tasteless, odorless thermoplastic hot melt adhesive, it is harmless to the human body and excellent in breathability, and can be carried out an environmentally friendly process without pollution, non-toxic, solvent-free.

In addition, in the present invention, by adhering the fabric substrate and the nanofiber web with the patterned solid hot melt adhesive, there is an advantage that the phenomenon such as yellowing, contamination, bleaching or warping does not occur.

5 is a schematic structural diagram of an apparatus for forming a solid-state hot melt adhesive pattern on a textile substrate according to the first embodiment of the present invention.

Referring to Figure 5, the apparatus for forming a solid hot melt adhesive pattern on the fabric substrate is a heating roll (310,311), coating roll 320, supply nozzle 330, heating tunnel 350, cooling roll (361, 362), guide The rolls 371, 372, 373, 374 and the take-up rolls 380 are configured.

The heating rolls 310 and 311 increase the temperature of the fabric substrate 100 before the hot melt adhesive is coated so that the coating of the hot melt powder adhesive is smoothly performed on the coating roll 320.

The coating roll 320 is formed with a plurality of gravure coating holes (not shown) spaced apart from each other on the roll surface, the hot melt powder adhesive injected from the supply nozzle 330 is inserted into the gravure coating hole is seated. At this time, when the fabric substrate 100 is rolled on the coating roll 320, the hot melt powder adhesive seated in the gravure coating hole is transferred to the fabric substrate 100 is coated. The coating roll 320 may also perform coating of the hot melt powder adhesive while heated to a predetermined temperature. Here, the size of the hot melt powder adhesive is preferably 1 μm-100 μm, more preferably 20 μm-30 μm. And, the size of the gravure coating hole is designed to be larger than the size of the hot melt powder adhesive so that the hot melt powder adhesive can be seated well in the gravure coating hole. In addition, the hot melt powder adhesive may be designed to be seated in the gravure coating hole in a one-to-one correspondence with the gravure coating hole.

The heating tunnel 350 passes through the hot melt powder adhesive coated fabric substrate 100 in order to improve the adhesive strength of the hot melt powder adhesive and the fabric substrate 100.

Through-holes are formed in the center of the cooling rolls 361 and 362, and when the fabric substrate 100 is rolled on the cooling rolls 361 and 362 by cooling water flowing through the through holes, the hot melt powder coated on the fabric substrate 100 Allow the adhesive to cool to a solid state.

Guide rolls 371, 372, 373 and 374 guide the fabric substrate 100 to be flattened, and the fabric substrate 100 is wound on the take-up roll 380.

Therefore, referring to the operation of the apparatus for forming a solid hot melt adhesive pattern on the fabric substrate, first, the fabric substrate 100 is supplied to the heating rolls 310,311 and heated, and then the hot melt powder adhesive is patterned on the coating roll 320 It is coated on the fabric substrate 100 in the shape. In this case, a plurality of gravure coating holes are formed in the coating roll 320, and the hot melt powder adhesive injected from the supply nozzle 330 is inserted into the gravure coating holes.

At this time, the fabric substrate 100 is supplied to the coating roll 320, the hot melt powder adhesive inserted into the gravure coating hole is transferred to the fabric substrate 100 while the coating roll 320 is rolled and coated. The hot melt powder adhesive coated fabric substrate 100 is then passed through a heating tunnel 350 to increase the adhesive strength of the hot melt powder adhesive adhered to the fabric substrate 100. Next, the fabric substrate 100 passing through the heating tunnel 350 is rolled onto the cooling rolls 361 and 362 to cool the hot melt powder adhesive passing through the heating tunnel 350 to change to a solid state. That is, the hot melt powder adhesive is cooled to a solid state in the cooling rolls 361 and 362, and a solid state hot melt adhesive pattern is formed on the fabric substrate 100. Thereafter, the fabric substrate 100 is wound on the take-up roll 380 via guide rolls 371, 372, 373, 374.

6 is a schematic configuration diagram of an electrospinning apparatus for manufacturing a nanofiber web according to a first embodiment of the present invention.

In the electrospinning apparatus of the present invention, a mixing tank (10) in which a spinning solution in which a polymer material and a solvent are mixed is stored, and a high voltage generator is connected to the mixing tank (10) to connect the nanofiber web (70). A plurality of spinning nozzles 21, 22 and 23 to be formed, and a collector 50 is disposed below the plurality of spinning nozzles 21, 22 and 23 so that the nanofiber web 70 is sequentially stacked.

The mixing tank 10 includes a stirrer 11 using a mixing motor 12 using a pneumatic pressure as a driving source to uniformly mix the spinning solution and maintain the spinning solution at a constant viscosity.

In the present invention, the air is sprayed for each of the plurality of spinning nozzles (21, 22, 23) to collect and accumulate the nanofibers, it is possible to manufacture a highly rigid nanofiber web, spinning problems that can occur while flying nanofibers Decreases.

As the high voltage electrostatic force of 90 to 120 Kv is applied between the collector 50 and the plurality of spinning nozzles 21, 22, and 23, the nanofibers 30 are radiated, and the nanofibers 30 are collected on the collectors to form a nanofiber web ( 70). The collector 50 may be a conveyor for automatically transferring the transfer sheet so that the nanofiber web 70 is formed on the transfer sheet (not shown), and a transfer sheet wound with a paper transfer sheet in front of the collector 50. A roll (not shown) is disposed to supply the transfer sheet to the upper surface of the collector 50. In addition, a pressure roll (not shown) may be provided at the rear of the collector 50 to planarize the surface by pressing (calendering) the nanofiber web 70.

Therefore, in the present invention, by spinning the nanofibers using a transfer sheet, by absorbing the residual solvent contained in the porous nanofiber web, the nanofibers are prevented from re-melting by the residual solvent and also the amount of residual solvent It can be adjusted appropriately.

The transfer sheet may be, for example, a polyolefin-based film such as nonwoven fabric, PE, PP, or the like made of a polymer material which is not dissolved by a solvent contained therein when spinning paper or a mixed spinning solution. In the case of the porous nanofiber web itself, it is difficult to carry out the drying process, the calendering process, and the winding process while having a high conveying speed due to low tensile strength.

Furthermore, after fabricating the porous nanofiber web, it is difficult to carry out the thermal bonding process with the fabric substrate continuously at a high feed rate, but the process sheet speed can be greatly increased by providing sufficient tensile strength when using the transfer sheet described above. have. The transceiver sheet is then removed before thermally bonding the porous nanofiber web and the fabric substrate.

In addition, when only the porous nanofiber web is used, the phenomenon of sticking to other objects occurs due to static electricity, resulting in poor workability, but when the transfer sheet is used, this problem can be solved. The transfer sheet is subjected to a heat adhesion process with the fabric substrate, and then peeled off and removed.

In addition, in the present invention, by heat-bonding the low-weight porous nanofiber web with the fabric substrate, not only can improve the waterproof waterproof effect of the fabric, it is also possible to implement a lightweight fabric.

7A to 7C are conceptual cross-sectional views for explaining a first modification of the method of manufacturing a moisture-permeable waterproof fabric according to the first embodiment of the present invention, and FIG. 8 is a moisture-permeable waterproof according to the first embodiment of the present invention. It is conceptual sectional drawing for demonstrating the 2nd modification of the method of manufacturing a fabric.

7A to 7C, the first modification of the method for manufacturing the moisture-permeable waterproof fabric according to the first embodiment of the present invention forms a water-soluble acrylic layer 105 on the fabric substrate 100 (FIG. 7A). A solid hot melt adhesive pattern 110 is formed on the water-soluble acrylic layer 105 (FIG. 7B). Subsequently, the nanofiber web 200 accumulated by the nanofiber made of a high molecular material and having a microporous structure is thermally bonded to the fabric substrate 100 (FIG. 7C).

Such a water-soluble acrylic layer 105 may be formed on all or part of one surface of the fabric substrate 100, when the water-soluble acrylic layer 105 is formed on a portion of one surface of the fabric substrate 100, a solid hot melt adhesive pattern ( It may be formed in the same pattern shape as 110. At this time, the pattern size of the water-soluble acrylic layer 105 is formed larger than the solid-state hot melt adhesive pattern 110 so that the solid-state hot melt adhesive pattern 110 is not adhered to the fabric base 100, the pattern of the water-soluble acrylic layer 105 It can be designed to bond.

In the moisture-permeable waterproof fabric manufactured according to the first modification of the present invention, the water-soluble acrylic layer 105 is interposed between the solid-state hot melt adhesive pattern 110 and the fabric substrate 100, and the water-soluble acrylic layer 105 is the solid-state hot melt. Since the adhesive strength between the adhesive pattern 110 and the fabric substrate 100 is high, it is possible to prevent the solid-state hot melt adhesive pattern 110 from peeling off due to an external force.

Referring to FIG. 8, FIG. 8 is a second modification of the method for manufacturing a moisture-permeable waterproof fabric according to the first embodiment of the present invention. The nanofibrous adhesive is electrospun onto the nanofiber web 200 or nanobeads The type adhesive is electrosprayed to thermally bond the solid hot melt adhesive pattern 110 and the nanofibrous adhesive or nanobead adhesive 120 between the nanofiber web 200 and the fabric substrate 100. Here, the nanofiber-like adhesive, or nano-bead-type adhesive 120 is between the solid hot melt adhesive pattern 110, that is, the nano-fiber web 200 and the fabric substrate 100 that does not exist the solid hot melt adhesive pattern 110 It is preferably located in the area between. The process of forming the solid-state hot melt adhesive pattern 110 on the fabric substrate 100 and the process of forming the nano-fiber adhesive or nano-bead adhesive 120 on the nanofiber web 200 is made separately, such a separate process By nanofibrous adhesive or nano-bead adhesive 120 may be overlapped with the solid-state hot melt adhesive pattern (110).

In addition, in the present invention, a spinning solution or a spraying solution in which an adhesive and a solvent are mixed is manufactured, and the spraying solution is sprayed to the spraying nozzle 25 as shown in FIG. 9A by using the electrospinning apparatus of FIG. 6 described above. The adhesive 121 is bonded to the nanofiber web 200 and the nanofibrous adhesive 122 is adhered to the nanofiber web 200 by spraying the spinning solution with the spinning nozzle 26 as shown in FIG. 9B. will be.

Here, the adhesive may be one of an epoxy resin, an acrylic resin, a urethane resin, a silicone resin, a phenol resin and a rubber-based adhesive.

When the nanofiber web 200 and the fabric substrate 100 are bonded by the solid hot melt adhesive pattern 110, the nanofibrous adhesive or nano bead adhesive is between the nanofiber web 200 and the textile substrate 100. By being interposed and bonded, the adhesive strength between the nanofiber web 200 and the textile substrate 100 is improved.

10 is a conceptual cross-sectional view for explaining a third modification of the method of manufacturing a moisture-permeable waterproof fabric according to the first embodiment of the present invention.

Referring to FIG. 10, the manufacturing method of the third modified example of the present invention includes a fabric substrate 100, a solid hot melt adhesive pattern 110, a nanofiber web 200, a top coating layer 250, and a printing pattern layer 270. The 2.5-layer fabric is laminated sequentially.

That is, the third modification of the method for manufacturing the moisture-permeable waterproof fabric according to the first embodiment of the present invention, first, the top coating layer (on the nanofiber web 200 of the moisture-permeable waterproof fabric of FIG. 1b manufactured in the first embodiment) 250). The top coating layer 250 is formed by attaching a hydrophilic PU in the form of a film or by coating a thin film. The thickness of the top coating layer is 5 μm to 10 μm, and the reason for forming the top coating layer is to print the uppermost printing pattern in a subsequent process. To get up. At this time, by forming the nanofiber web to 5gsm, preferably 2gsm-3gsm weight, it is possible to reduce the manufacturing cost. Thereafter, the printed pattern layer 270 is formed on the top coating layer 250 by gravure printing or the like.

11 is a conceptual cross-sectional view of a moisture-permeable waterproof fabric according to a second embodiment of the present invention, Figure 12 is a schematic view for explaining a hot melt web adhesive applied to the moisture-proof waterproof fabric according to a second embodiment of the present invention. .

Referring to Figure 11, the moisture-permeable waterproof fabric according to the second embodiment of the present invention is a fabric base 1100; A hot melt web adhesive 1110 adhered to the fabric substrate 1100 and having a plurality of pores; And a porous substrate 1120 attached to the hot melt web adhesive 1110 and having a plurality of pores.

Here, the hot melt web adhesive 1110 is in the form of a web having a plurality of pores 1112 in which fibers 1111 made of a hot melt material are accumulated, as shown in FIG. 12, and has a solid sheet shape.

The hot melt web adhesive 1110 may be made of one of polyamide-based, polyester-based, polyurethane-based, polyolefin-based, polyolefine-based, and E.V.A (Ethylene Vinyl Acetate) -based materials.

The melting point of the hot melt web adhesive 1110 is preferably 150 ° C. or less, and the melt index is 5 to 500 cm 3/10 min.

That is, when the melt index is 5 cm 3/10 min or less, the adhesive strength of the hot melt web adhesive 1110, the fabric substrate 1100, and the porous substrate 1120 is lowered, and when the melt index is 500 cm 3/10 min or more, the melted hot melt web adhesive 1110 ) Penetrates into the fabric substrate 1100 and the porous substrate 1120 to lower the water pressure.

As described above, in the present invention, after the hot melt web adhesive 1110 is interposed between the fabric substrate 1100 and the porous substrate 1120, the fabric substrate 1100 and the porous substrate 1120 are heated with the hot melt web adhesive 1110. It is to realize the waterproof fabric by adhering.

Therefore, the moisture-permeable waterproof fabric according to the present invention includes the pores of the hot melt web adhesive 1110 and the pores of the porous substrate 1120, so that the air permeability can be excellent and the moisture permeability and waterproof efficiency can be improved.

Here, the pores of the porous substrate 1120 substantially perform the moisture permeation and waterproofing function, and should have an appropriate size for performing the moisture permeation and waterproofing function, and the pores of the hot melt web adhesive 1110 may be porous substrate 1120. Moisture escaped through the pores should have a size enough to pass through smoothly.

In this case, the pores of the hot melt web adhesive 1110 may be larger than the pores of the porous substrate 1120. Here, the pore size of the hot melt web adhesive 1110 is 100 to 10000 μm, and the pore size of the porous substrate 1120 is preferably 0.8 μm or less.

That is, the hot melt web adhesive 1110 is melted to participate in the adhesion. When the melted hot melt material closes the pores, the moisture permeability can be reduced, so that the pore size of the hot melt web adhesive 1110 is the pore of the melted hot melt material. Since it should have a size that does not close the, it is preferable to set larger than the pores of the porous substrate 1120.

In addition, the diameter of the fiber of the hot melt web adhesive 1110 is 10 to 100 μm, the diameter of the nanofiber of the porous substrate 1120 is preferably 0.5 to 1.5 μm, and the accumulation amount of the fiber of the hot melt web adhesive 1110 is 10 μm. ˜20 gsm, and the accumulation amount of the porous substrate 1120 is preferably less than 5 gsm.

As such, in the present invention, the sheeted hot melt web adhesive is adhered to the fabric substrate and the porous substrate, and the adhesion area is increased to improve the adhesive strength with the fabric substrate and the porous substrate, thereby preventing the porous substrate from being peeled from the fabric substrate. You can prevent it.

Referring to FIG. 13, in the method of manufacturing a moisture-permeable waterproof fabric according to a second embodiment of the present invention, a hot melt web adhesive is interposed between a fabric substrate and a porous substrate to implement a laminated structure (S100). Thereafter, the laminated structure is calendered and thermally bonded (S110).

That is, the step 'S110' is to heat-bond the fabric substrate and the porous substrate by melting the hot melt web adhesive.

Here, the porous substrate may use one of nanofiber webs, nonwoven fabrics, and laminated structures thereof having a plurality of pores integrated by nanofibers.

In operation S110, as shown in FIG. 14, a calendering process is performed while the stacked structure 1200 passes between the rollers 1251 and 1252 to which heat is applied.

Here, the heat applied from the rollers 1125 and 1252 melts the hot melt web adhesive interposed between the laminated substrate and the porous substrate, and the hot melt material melted from the hot melt web adhesive adheres to the textile substrate and the porous substrate, respectively. do.

At this time, when the laminated structure 1200 passes through the rollers 1125 and 1252, since the laminated structure 1200 is instantaneously applied with heat from the rollers 1251 and 1252, the fabric substrate and the porosity of the laminated structure 1200. The hot melt web adhesive regions in contact with each of the substrates are melted, and the melted hot melt web adhesive regions are bonded to each of the fabric substrate and the porous substrate as the laminated structure 1200 passes through the rollers 1251 and 1252 and then cools.

Here, the hot melt web adhesive region located at the interface with each of the fabric substrate and the porous substrate melts and participates in the bonding process, and the inner region of the hot melt web adhesive becomes unmelted and does not participate in the bonding process.

As such, the molten hot melt penetrates into a predetermined area of the surface of the fabric substrate, further increasing the adhesive strength of the hot melt web adhesive and the fabric substrate, and the hot melt web adhesive and the porous substrate, thereby preventing the moisture-permeable waterproof fabric of the present invention from peeling off. It is possible to improve the reliability.

As described above, in the present invention, by adhering the fabric substrate and the porous substrate with a hot melt web adhesive to increase the adhesion area, the adhesion of the fabric substrate and the porous substrate can be improved.

FIG. 15 is a schematic diagram of a calender roll type device for bonding a fabric substrate and a porous substrate with a solid hot melt web adhesive according to the present invention, and FIG. 16 is a method for bonding the fabric substrate and the porous substrate with a solid hot melt web adhesive according to the present invention. It is a device block diagram of the flat panel laminating type.

In the present invention, the process of melting the hot melt web adhesive interposed between the fabric substrate and the porous substrate to bond the fabric substrate and the porous substrate is performed in a calender roll type device as shown in FIG. 15 or a flat laminating type device as shown in FIG. can do.

That is, a process using a calender roll type apparatus includes a fabric bar 1201a, a solid hot melt web adhesive 1202a, and a porous substrate 1203a wound on the first to third feed rolls 1201, 1202, 1203. (1211, 1222, 1223) and the driving rolls (1231, 1232) are laminated by feeding to the calender rolls (1253a, 1253b) to which heat is applied.

Thereafter, the solid hot melt web adhesive 1202a is melted by the heat applied from the calender rolls 1253a and 1253b, and then, by the cold air applied from the cooling fan 1270 while being rolled onto the driving rolls 1261, 1262 and 1263. The melted solid hot melt web adhesive 1202a is cooled and bonded to the fabric substrate 1201a and the porous substrate 1203a, and then wound on the winding roll 1280.

Here, when the solid hot melt web adhesive 1202a is melted, it contacts and penetrates the surfaces of the fabric substrate 1201a and the porous substrate 1203a, and the solid hot melt web adhesive 1202a to which the cold air is applied is cooled to melt and fabricated. By being adhered to the surface of the substrate 1201a and the porous substrate 1203a, the solid-state hot melt web adhesive 1202a interposed between the textile substrate 1201a and the porous substrate 1203a is porous with the textile substrate 1201a by melting and cooling. The substrate 1203a can be bonded.

In the flat laminating type device, a flat heating and cooling device 1295 is used. First, the fabric substrate 1291a wound on the fourth to sixth feed rolls 1291, 1292 and 1293, The solid hot melt web adhesive 1292a and the porous substrate 1293a are fed into the heating and cooling tunnel 1295a of the heating and cooling device 1295. At this time, the fabric substrate 1291a, the solid hot melt web adhesive 1292a, and the porous substrate 1293a are fed into the heating and cooling tunnel 1295a in a stacked state.

On the other hand, the heater 1295b, the pressing roll 1295c, and the cooler 1295d are sequentially arranged in the heating and cooling tunnel 1295a from the inlet to the outlet.

Therefore, when the laminated structure of the fabric substrate 1291a, the solid hot melt web adhesive 1292a, and the porous substrate 1293a passes through the heating and cooling tunnel 1295a, a melting, pressing, and cooling process is performed to fabric the substrate substrate 1291a. And porous substrate 1293a is adhered by solid hot melt web adhesive 1292a.

That is, by feeding the laminated fabric substrate 1291a, the solid hot melt web adhesive 1292a and the porous substrate 1293a into the inlet of the heating and cooling tunnel 1295a, the fabric substrate laminated by the conveyor belt 1294 ( 1291a), solid hot melt web adhesive 1292a, and porous substrate 1293a pass through heating and cooling tunnel 1295a. At this time, the heat of the heater 1295b located at the inlet region of the heating and cooling tunnel 1295a first melts the solid-state hot melt web adhesive 1292a, and is then disposed in the central region of the heating and cooling tunnel 1295a. By laminating the laminated structure with the pressing roll 1295c and cooling the laminated structure with the cooler 1295d installed in the exit area of the heating and cooling tunnel 1295a, the solid-state hot melt web adhesive 1292a is formed into the fabric substrate 1291a and the porous structure. It adhere | attaches to the base material 1293a.

Subsequently, in the heating and cooling tunnel 1295a, the textile substrate 1291a and the porous substrate 1293a are wound with the moisture-permeable waterproof fabric 1296 of the present invention bonded to the solid hot melt web adhesive 1292a.

For reference, in the calender roll type apparatus of FIG. 15, the process proceeds from the left direction to the right direction, and in the flat plate laminating type apparatus of FIG. 16, the process proceeds from the right direction to the left direction.

Referring to FIGS. 17A to 17C, a modification of the method of manufacturing a moisture-permeable waterproof fabric according to the second embodiment of the present invention is performed by electrospinning the spinning solution to the carrier member 1300 in the spinning nozzle 1020 to form a nanofiber 1121a. To form a nanofiber web 1120 (FIG. 17A).

Herein, the carrier member 1300 may be applied to a release paper, a nonwoven fabric, a fabric, or the like, and the carrier member 1300 may serve as a base substrate for handling of the nanofiber web 1120 or may be applied to external physical forces. To be used to perform other additional functions such as protecting the nanofiber web 1120.

Thereafter, the hot melt web adhesive 1110 and the fabric substrate 1100 are laminated on the nano fiber web 1120, and calendered to thermally bond the nano fiber web 1120 and the fabric substrate 1100 with the hot melt web adhesive 1110. (FIG. 17B). Calendering is performed by passing a structure in which the carrier member 1300, the nanofiber web 1120, the hot melt web adhesive 1110, and the fabric substrate 1100 are stacked through the rollers 1251 and 1252.

In this case, each of the nanofiber web 1120, the hot melt web adhesive 1110, and the fabric substrate 1100 formed by being electrospun on the carrier member 1300 is fed between the rollers 1251 and 1252, and thus the rollers 1125 and 1252. May be stacked between the layers) to perform the calendaring process.

Subsequently, as shown in FIG. 17C, the carrier member 1300 is separated from the nanofiber web 1120 so that the moisture-permeable waterproof fabric composed of the nanofiber web 1120, the hot melt web adhesive 1110, and the fabric substrate 1100. Complete the manufacture of

In this case, when the carrier member 1300 is a release paper, the carrier member 1300 is preferably separated from the nanofiber web 1120, and when the carrier member 1300 is a nonwoven fabric or a fabric, the process of detaching from the nanofiber web 1120 is not performed. It may not.

Referring to Figure 18, the water-permeable waterproof fabric according to the third embodiment of the present invention is the first fabric substrate 100; A hot melt web 110 bonded to the first fabric base 100 and having a plurality of pores; A porous substrate 120 having one surface bonded to the hot melt web adhesive 110 and having a plurality of pores; A solid hot melt adhesive powder 131 adhered to the other surface of the porous substrate 120; And a second fabric base 130 on which the solid hot melt adhesive powder 131 is formed. Here, a hot melt web adhesive may be used instead of the solid hot melt adhesive powder 131.

The weave density of the second fabric base 130 is preferably lower than the weave density of the first fabric base 100. That is, when the moisture-permeable waterproof fabric is manufactured as a garment, the first fabric base 100 is exposed to the outside and directly affects the appearance state of the garment. Therefore, the first fabric base 100 should have a relatively high density weave state and the second fabric base ( 130 is only to have a limited function for protecting the porous substrate 120 in close proximity to the human body, it is preferable to have a relatively low density weaving state in order to reduce manufacturing costs. For this reason, the second fabric substrate 130 may be referred to as back paper.

Therefore, in the moisture-permeable waterproof fabric according to the third embodiment of the present invention, since the hot melt web adhesive 110 and the porous substrate 120 have pores, and the solid hot melt adhesive powder 131 is interposed, It is possible to improve breathability and to improve moisture permeability and waterproofing efficiency.

Therefore, in the third embodiment of the present invention, by heat-bonding the porous substrate to the second fabric substrate with the solid-state hot melt adhesive powder, the solid-state hot melt adhesive powder for bonding is located only in the local region of the fabric substrate and the porous substrate, and thus the second fabric substrate. And by reducing the bonded area of the porous substrate to increase the area performing the moisture permeable function, it is possible to improve the moisture-permeable efficiency.

19A to 19C are conceptual cross-sectional views for explaining a method of manufacturing a moisture-permeable waterproof fabric according to a third embodiment of the present invention.

19A to 19C, a method of manufacturing a moisture-permeable waterproof fabric according to a third embodiment of the present invention may first include a hot melt web adhesive 110 interposed between the first fabric substrate 100 and the porous substrate 120. Then, the hot melt web adhesive 110 is melted to thermally bond the first fabric substrate 100 and the porous substrate 120 (FIG. 19A). Next, a solid hot melt adhesive powder 131 is formed on the second fabric base 130 (FIG. 19B). Thereafter, the solid hot melt adhesive powder 131 is melted, and the porous substrate 120 is thermally bonded to the second fabric substrate 130 (FIG. 19C).

As described above, in the method of manufacturing a moisture-permeable waterproof fabric according to the third embodiment of the present invention, melting the hot melt web adhesive 110 by setting melting points of the hot melt web adhesive 110 and the solid hot melt adhesive powder 131 differently. After the first fabric substrate 100 and the porous substrate 120 is thermally bonded, the solid hot melt adhesive powder 131 is melted to thermally bond the porous substrate 120 to the second fabric substrate 130.

At this time, in the process of thermally bonding the porous substrate 120 to the second fabric substrate 130, the hot melt web adhesive 110 heat-bonding the first fabric substrate 100 and the porous substrate 120 is not melted, hot melt The melting point of the web adhesive 110 is preferably higher than the melting point of the solid hot melt adhesive powder 131.

That is, the process of thermally bonding the first textile substrate 100 and the porous substrate 120 is performed at a higher temperature than the process of thermally bonding the porous substrate 120 to the second textile substrate 130.

20A to 20C are conceptual cross-sectional views for explaining a modification of the method for manufacturing a water-permeable waterproof fabric according to a third embodiment of the present invention.

20A to 20C, a modified example of a method of manufacturing a moisture-permeable waterproof fabric having improved adhesive strength according to a third embodiment of the present invention is to form a solid hot melt adhesive powder 131 on the second fabric base 130. (FIG. 20A). Subsequently, the porous substrate 120, the hot melt web adhesive 110, and the first fabric substrate 100 are sequentially stacked on the second fabric substrate 130 on which the solid state hot melt adhesive powder 131 is formed (FIG. 20B). Thereafter, the hot melt web adhesive 110 and the solid hot melt adhesive powder 131 are melted to open the first fabric substrate 100 and the porous substrate 120, and the porous substrate 120 and the second fabric substrate 130. A bonding process is performed (FIG. 20C).

Here, the hot melt web adhesive 110 and the solid hot melt adhesive powder 131 are preferably melted at the same time, and the melting point of the hot melt web adhesive 110 and the solid hot melt adhesive powder 131 is preferably the same.

Here, the thermal bonding process, as shown in Figure 20c, the first fabric substrate 100, hot melt web adhesive 110, porous substrate 120, solid hot melt adhesive powder 131 and the second fabric substrate 130 ) Laminated structure 150 is fed between the rollers 251 and 252, and the hot melt web adhesive 110 and the solid hot melt adhesive powder 131 are melted by the heat applied from the rollers 251 and 252 to form the first fabric substrate ( 100) and the porous substrate 120, and the porous substrate 120 and the second fabric substrate 130 is preferably heat-bonded.

21 and 22 are test reports showing the results of evaluating the water pressure and moisture permeability of the moisture-permeable waterproof fabric according to the third embodiment of the present invention.

First, the first moisture-permeable waterproof fabric sample (test report # 1) according to the third embodiment of the present invention, which is to evaluate the water pressure and moisture permeability, prepares 5 gsm of PVDF nanofiber webs by electrospinning, and the nanofiber webs are 50 10 gsm polyamide hot melt web adhesive was applied to a denier dewspo fabric (first fabric substrate) by applying 120 ° C. using a heat calendar roll, and then 20 denier tricot fabrics. (Secondary fabric base material) was prepared by applying 120 ° C. to a nanofiber web using a 10 gsm polyamide hot melt web adhesive.

Then, the second moisture-permeable waterproof fabric sample (test report # 2) according to the third embodiment of the present invention is prepared in the same manner as the first moisture-permeable waterproof fabric sample (test report # 1) described above, and the adhesive temperature is 130 ℃ It was prepared by changing to.

At this time, the polyamide hot melt web adhesive used was a product having a melting temperature of 110 ℃, melt index 30 cm 3/10 min.

The first moisture-permeable waterproof fabric sample (test report # 1) and the second moisture-permeable waterproof fabric sample (test report # 2) prepared as described above were subjected to water pressure using ISO811: 1981, low water pressure method to check the water resistance and water vapor permeability. Increased to 60 cmH ₂ O / min.

In addition, the moisture permeability was measured by JIS L 1099: 2012, A-1 method, the area of the moisture permeation cup is 0.00283 ㎡, the height of the moisture permeation cup is 25mm, the moisture absorbent is CALCIUM CHLORIDE (CaCl2), the temperature is 40 ± 2 ℃, It was carried out at 90 ± 5%.

As a result of evaluation of the test report by the FITI (Friend of Industry Technology Information) tester, both the first moisture-permeable waterproof fabric sample (test certificate # 1) and the second moisture-permeable waterproof fabric sample (test certificate # 2) have excellent water pressure and moisture permeability. It can be seen that it is proved that the moisture-permeable waterproof fabric of the present invention has superior characteristics than the conventional fabric.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the spirit of the present invention. Various changes and modifications will be possible by those who have the same.

The present invention provides a moisture-permeable waterproof fabric that can improve the adhesion between the fabric substrate and the porous substrate using a solid hot melt adhesive, and improve the moisture permeability.

Claims (20)

Textile substrates; Hot melt adhesive laminated on the fabric substrate; And And a porous substrate adhered to the fabric substrate by the hot melt adhesive. The method of claim 1, The hot melt adhesive is moisture-permeable waterproof fabric is a hot melt web adhesive or hot melt powder adhesive having a plurality of pores formed by the accumulation of heat-bondable fibers. A first textile substrate; A porous substrate adhered to the first fabric substrate by a hot melt web adhesive; And And a second fabric substrate adhered to the porous substrate by hot melt powder adhesive or hot melt web adhesive. The method according to claim 2 or 3, The hot melt powder adhesive has a size of 1㎛-100㎛ breathable waterproof fabric. The method according to claim 2 or 3, The hot melt powder adhesive is a moisture-permeable waterproof fabric made of one of urethane, polyamide, polyethylene, E.V.A., polyester, and P.V.C. materials. The method according to claim 2 or 3, The diameter of the fiber of the hot melt web adhesive waterproof fabric 10 ~ 100㎛. The method according to claim 2 or 3, The moisture accumulation of the fiber of the hot melt web adhesive is 10 ~ 20gsm. The moisture-permeable waterproof fabric according to claim 2 or 3, wherein the pores of the hot melt web adhesive are larger than the pores of the porous substrate. The moisture-permeable waterproof fabric according to claim 2 or 3, wherein the pores of the hot melt web adhesive have a size of 100 to 10000 µm. According to claim 2 or 3, wherein the hot melt web adhesive is a polyamide-based, polyester (polyester), polyurethane (polyurethane), polyolefin (polyolefine) and EVA (Ethylene Vinyl Acetate) of the Moisture-proof waterproof fabric made of one material. The moisture-permeable waterproof fabric of claim 2 or 3, wherein a melting point of the hot melt web adhesive is 150 ° C. or less. The moisture-permeable waterproof fabric of claim 3, wherein a melt index of the hot melt web adhesive is 5 to 500 cm 3/10 min. The method according to claim 1 or 3, The porous substrate is a moisture-permeable waterproof fabric is one of the nanofiber web, nonwoven fabric and a laminated structure thereof having a plurality of pores formed by the accumulation of nanofibers. The water-permeable waterproof fabric of claim 13, wherein the pores of the nanofiber web have a size of 0.8 μm or less. The moisture-permeable waterproof fabric of claim 13, wherein the accumulation amount of the nanofibers is less than 5 gsm. The method according to claim 1 or 3, The solid hot melt adhesive region in contact with the fabric base material is permeable to the inside of the fabric base material. The method according to claim 1 or 3, Water-permeable waterproof fabric further comprising a water-soluble acrylic layer interposed between the fabric substrate and the solid hot melt adhesive. The method of claim 1, A top coating layer formed by coating a hydrophilic PU on the porous substrate; And Water-permeable waterproof fabric further comprising; printed pattern layer printed on the top coating layer. Feeding the laminated structure of the fabric substrate, the solid hot melt web and the porous substrate into a calender roll to which heat is applied; Melting the solid hot melt web by heat applied from the calender roll and adhering the fabric substrate to the porous substrate; And And cooling the solid hot melt web adhered to the fabric substrate and the porous substrate by cold wind applied from a cooling fan. Preparing a heating and cooling device provided with a heating and cooling tunnel in which a heater, a pressing roll, and a cooler are sequentially arranged from an inlet to an outlet; Feeding the laminated structure of the fabric substrate, the solid hot melt web and the porous substrate to the inlet of the heating and cooling tunnel; Melting the solid hot melt web with heat of the heater; Laminating the laminated structure with the pressing roll; And Cooling the laminated structure with the cooler; Method of manufacturing a moisture-permeable waterproof fabric comprising a.

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