KR20120028693A - Fabric for waterproof and breathable and preparing the same - Google Patents

Fabric for waterproof and breathable and preparing the same Download PDF

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KR20120028693A
KR20120028693A KR1020100090696A KR20100090696A KR20120028693A KR 20120028693 A KR20120028693 A KR 20120028693A KR 1020100090696 A KR1020100090696 A KR 1020100090696A KR 20100090696 A KR20100090696 A KR 20100090696A KR 20120028693 A KR20120028693 A KR 20120028693A
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South Korea
Prior art keywords
moisture
fabric
layer
permeable waterproof
nonwoven web
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KR1020100090696A
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Korean (ko)
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KR101234044B1 (en
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강영식
손정아
정긍식
지성대
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웅진케미칼 주식회사
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022Non-woven fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00Manufacture or treatment of nanostructures
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/345Nitriles
    • D06M13/348Nitriles unsaturated, e.g. acrylonitrile
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M17/00Producing multi-layer textile fabrics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/724Permeability to gases, adsorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/726Permeability to liquids, absorption
    • B32B2307/7265Non-permeable
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/10Repellency against liquids
    • D06M2200/12Hydrophobic properties
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/02Moisture-responsive characteristics
    • D10B2401/021Moisture-responsive characteristics hydrophobic
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00Details of fabric structure established in the fabric forming process
    • D10B2403/02Cross-sectional features

Abstract

PURPOSE: UV curable type moisture-permeable and waterproof fabric is provided to have excellent moisture-permeability, to improve adhesion without using separate adhesive, and to improve internal water pressure. CONSTITUTION: UV curable type moisture-permeable and waterproof fabric comprises a surface layer consisting of a fabric layer, a nano fiber non-woven fabric web on the surface layer, and a coating layer coated by polyurethane acrylate on the nano fiber non-woven fabric web. The internal water pressure is 8,000~15,000 mmH2O, and moisture-permeability is 10,000~15,000g/m^2/24hr. The manufacturing method of the UV curable type moisture-permeable and waterproof fabric comprises: a step of manufacturing the nano fiber non-woven web by electrical radiating polyurethane; a step of conjugating the surface layer under the nano fiber non-woven fabric web; a step of coating the laminated fabrics by acrylate resin; a step of UV curing the fabric; and a step of drying the cured fabrics.

Description

Breathable waterproof fabric with excellent moisture permeability and manufacturing method thereof {FABRIC FOR WATERPROOF AND BREATHABLE AND PREPARING THE SAME}

The present invention relates to a water-permeable waterproof fabric and a method for manufacturing the same, and more particularly, to a moisture-permeable waterproof fabric and its preparation by improving the moisture permeability and water pressure through UV curing and washing after coating the nanofiber nonwoven web on the fabric. It is about a method.

In recent years, the development of functional materials has been focused on health. It began with efforts to give absorbent and hygroscopic properties to synthetic fibers and to make them closer to natural fibers, and nowadays, the development of synthetic fibers having absorption and hygroscopic properties over natural fibers has become a major factor. Among them, the development of highly breathable, waterproof, windproof, quick-drying, air-permeable, and ultra-light, comfortable, comfortable and comfortable fabric means that the meaning of health and refreshment is getting stronger. Demand is also growing.

Among these functional materials, the moisture-permeable waterproof fabric uniformly forms a porous polymer film on the surface of the knitted fabric to prevent rain or water from splashing and permeate, while the sweat from the body is vaporized to discharge to the outside, thereby providing comfort. In addition, a technique for satisfying the emotional performance of the three-dimensional contour, etc. when worn as clothing. Therefore, the moisture-permeable waterproof fabric passes only the water vapor generated from the body, that is, a water vapor size of about 0.0004 μm in diameter, but weave a film with numerous pores, i.e., 0.1 to 10.0 μm, so that water droplets do not pass. By forming on the above, it is possible to realize smooth moisture permeation and excellent waterproofing at the same time.

In particular, the functional outdoor products applied to sports, leisure, travel, such as mountaineering products, training, ski clothes, golf clothes, etc., because the high moisture-permeable waterproof performance is required, the polyurethane coating on the woven fabric to exhibit such characteristics Or a moisture-permeable waterproof fabric prepared by adhering a porous e-PTFE (PolyTetraFluoro Ethylene) film onto a fabric by using wet, dry, or laminating. However, the moisture-permeable waterproof fabric prepared by the above method has a problem in that the manufacturing process is very complicated, the pore distribution is not uniform, and the pore density cannot be easily adjusted, and there is a limit to the application to the elastic fabric. In addition, the fabric is excellent in water resistance, but has a disadvantage in that the ability to maintain a comfortable state by releasing sweat or moisture generated in the body. In particular, the e-PTFE as a carcinogen has been the subject of recent environmental regulations.

In Japanese Patent Laid-Open No. 2006-45716, a polyamide-based hollow core having a plurality of fine pores on the surface of the fiber and having a hollow portion near the center of the fiber, and having a hollow ratio of 25 to 65% by the hollow portion. A moisture-permeable waterproof fabric has been proposed, which is composed of a fiber cloth using at least a portion of a fiber and a resin layer laminated on at least one side of the fiber cloth. However, when using the fabric and the hollow fiber having the micro-pores, there is a problem in the mechanical strength such as tensile strength and wear resistance, and the durability of the friction is low, the fabric is easily damaged.

Further, in Japanese Patent Application Laid-Open No. 2007-186817, a mixed resin solution of a polyester-based resin and a water-soluble polymer is coated on one side of a fiber cloth, and dried and washed to dry it. A manufacturing method has been proposed. The moisture-permeable waterproof fabric has the advantage of being capable of recycling (recycle), there is no pore there is a low air permeability and low water pressure there is a fear that the expression of the waterproof moisture-proof property is insufficient.

In order to solve the above problems, an object of the present invention is to provide a moisture-permeable waterproof fabric and a manufacturing method thereof excellent in moisture permeability.

Another object of the present invention is to provide an environmentally friendly moisture-permeable waterproof fabric and a method for manufacturing the same, which enhances adhesive strength without using an adhesive.

Still another object of the present invention is to provide a moisture-permeable waterproof fabric and a manufacturing method thereof that can be applied to various applications to improve the water pressure.

In order to achieve the above object, the present invention provides a moisture-permeable waterproof fabric, the surface layer consisting of a fabric layer; A nanofiber nonwoven web on an upper surface of the surface layer; And a coating layer coated with a polyurethane acrylate on the upper surface of the nanofiber nonwoven web, and having a water resistance of 8,000 to 15,000 mmH 2 O and a water vapor transmission rate of 10,000 to 15,000 g / m 2 / 24hr. do.

In another aspect, the present invention provides a moisture-permeable waterproof fabric, characterized in that the moisture-permeable waterproof fabric is UV curing.

In another aspect, the present invention provides a moisture-permeable waterproof fabric having excellent moisture permeability, characterized in that the surface layer is applied to weaving, knitting, or stretch fabric, such as natural or synthetic fibers.

In another aspect, the present invention provides a moisture-permeable waterproof fabric, characterized in that the pore size of the nanofiber nonwoven web is 0.1 to 1.0 ㎛.

In addition, the present invention is the nanofiber nonwoven web weight 4 to 7 g / ㎡, thickness of 10 to 30 ㎛, tensile strength of 0.2 kgf / inch or more, elongation 70% or more, peel strength 25 kgf / cm or more, porosity 80 Provides a moisture-permeable waterproof fabric having excellent moisture permeability, characterized in that more than%.

In another aspect, the present invention provides a moisture-permeable waterproof fabric, characterized in that the cross-sectional shape of the nanofiber is made of one or more selected from the group consisting of a circular, heteromorphic cross-section, hollow fiber form and the form of mixing the capsule.

In another aspect, the present invention provides a method for producing a moisture-permeable waterproof fabric, nanofiber nonwoven web manufacturing step of electrospun polyurethane nanofibers 70 to 100 nm in diameter in the form of a nonwoven web in the collector (Collector); Laminating step of bonding a surface layer made of fabric to a lower surface of the prepared nanofiber nonwoven web; A coating step of coating the laminated fabric with a polyurethane acrylate resin; UV curing step of curing the coated fabric in ultraviolet light; And including the step of drying the cured fabric, it provides a method of producing a moisture-permeable waterproof fabric, characterized in that the water pressure of 8,000 to 15,000 mmH 2 O and moisture permeability of 10,000 to 15,000 g / ㎡ / 24hr.

In another aspect, the present invention, the UV curing can be coated by immersing in a polyurethane acrylate resin solution, when the coating is immersed, the method of producing a moisture-permeable waterproof fabric further comprising the step of washing with water after the UV curing step. To provide.

In another aspect, the present invention provides a method for producing a moisture-permeable waterproof fabric, characterized in that the UV curing coating the nanofiber nonwoven web layer by a spray method or a printing method.

In another aspect, the present invention provides a method for producing a moisture-permeable waterproof fabric having excellent moisture permeability, characterized in that the surface layer is applied to weaving, knitting, or stretch fabric, such as natural or synthetic fibers.

In another aspect, the present invention provides a method for producing a moisture-permeable waterproof fabric, characterized in that the pore size of the nanofiber nonwoven web is 0.1 to 1.0 ㎛.

In addition, the present invention is the nanofiber nonwoven web weight 4 to 7 g / ㎡, thickness of 10 to 30 ㎛, tensile strength of 0.2 kgf / inch or more, elongation 70% or more, peel strength 25 kgf / cm or more, porosity 80 Provides a method for producing a moisture-permeable waterproof fabric having excellent moisture permeability, characterized in that more than%.

In another aspect, the present invention provides a method for producing a moisture-permeable waterproof fabric having excellent moisture permeability, characterized in that the cross-sectional shape of the nanofiber is made of one or more selected from the group consisting of circular, heteromorphic cross-section, hollow fiber form and the form of mixing the capsule. do.

As described above, the moisture-permeable waterproof fabric of the present invention has a nanofiber nonwoven web applied to a woven fabric to provide excellent air permeability due to microporosity and porosity, and provides excellent moisture permeability and comfort.

In addition, the moisture-permeable waterproof fabric of the present invention is excellent in bonding strength even if the nano-fiber nonwoven web and the woven fabric of the electrospun thin film is bonded due to UV curing, there is an environmentally friendly effect.

In addition, the moisture-permeable waterproof fabric of the present invention may be formed in a multi-layer according to the use, hygiene health, safety functional material, or as well as comfortable materials applied to functional outdoor products such as mountaineering products, training, ski clothes, or Dyeing is excellent, there is an effect that can be utilized as a marker function material by incorporating discoloration capsules in the nanofiber yarn during spinning.

In addition, the moisture-permeable waterproof fabric of the present invention improves the water pressure, and can be applied differently for various uses by configuring the back layer fabrics in various ways, there is an effect of improving the fit to fit.

Figure 1 shows the manufacturing process of the moisture-permeable waterproof fabric according to an embodiment of the present invention.
Figure 2 is a cross-sectional view of the waterproof breathable fabric according to an embodiment of the present invention.
Figure 3 is a principle diagram of the waterproof waterproof fabric according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, it should be noted that in the drawings, the same components or parts denote the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

As used herein, the terms "about", "substantially", and the like, are used at, or in close proximity to, numerical values as are indicative of preparation and material tolerances inherent in the meanings mentioned, and are intended to be accurate or to facilitate understanding of the invention. Absolute figures are used to prevent unfair use by unscrupulous infringers.

As used herein, the term "fabric" is used as a raw material for all garments, and includes all articles manufactured by weaving or knitting, nonwoven fabrics, and fibrous webs.

1 is a view illustrating a manufacturing process of a moisture-permeable waterproof fabric according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the moisture-proof waterproof fabric according to an embodiment of the present invention.

The present invention is a nanofiber non-woven web manufacturing step of producing a non-woven web in the form of a nanofiber of 70 to 100 nm in diameter by electrospun polyurethane in the production of moisture-permeable waterproof fabric; Laminating step of bonding a surface layer made of fabric to a lower surface of the prepared nanofiber nonwoven web; A coating step of coating the laminated fabric on a polyurethane acrylate resin; And a UV curing step of curing the coated fabric in ultraviolet rays, characterized in that the water pressure of 8,000 to 15,000 mmH 2 O and water vapor permeability of 10,000 to 15,000 g / ㎡ / 24hr. In addition, after the UV curing step may further comprise a washing step of washing the fabric.

The moisture-permeable waterproof fabric of the present invention may be prepared by stacking a nanofiber nonwoven web 120 and a surface layer 110 made of a fabric, and forming a coating layer 130 on the upper surface of the nonwoven fabric.

The nanofiber nonwoven fabric is produced in the form of a non-woven web (Web) of 10 to 30 ㎛ thickness in the collector (Collector) of 70 to 100 nm in diameter produced by electrospun polyurethane, weight 4 to 7 g / ㎡ , 10 to 30 ㎛ thick air permeability 0.8 cc / ㎠ / sec or more, water pressure 10,000 mmH 2 O or more, tensile strength 0.2 kgf / inch or more, elongation 70% or more, peel strength 25 kgf / cm or more, moisture permeability 10,000 g / It is preferable that they are m <2> / 24hr or more, porosity 80% or more, pore size 0.1-1.0 micrometer. The nanofiber nonwoven web is not hydrophobic (Hydrophobic), the water is impossible to penetrate, the pores with a large specific surface area quickly discharges the water vapor particles of sweat, numerous nano pores tens of times smaller than the droplet size does not penetrate water at all It provides waterproofness and prevents cold wind from outside by acting as a thermal insulation material with porous structure, and provides windproof property to maintain proper body temperature, and also prevents bacteria from penetrating and provides anti-virus.

In addition, the nanofiber nonwoven web 120 of the present invention is formed of a thin film of 3,800 km long long fiber nonwoven fabric due to electrospinning, ultra-light, high tensile strength, high durability, excellent elasticity can be more excellent expression. have.

In addition, the shape of the yarn may be adjusted according to the use, such as forming a nanofiber yarn in the form of a circle, a cross-section, or hollow fiber, incorporating a capsule or the like during spinning. In the planar nanofiber nonwoven plane, fine nanofibers are irregularly entangled so that the nonwoven web may be finely formed in a film form. In addition, many pore layers are formed in the thin film, so that the cross-sectional area is wide and the air permeability can be increased.

The surface layer 110 is made of natural or synthetic fibers woven, woven, or stretched fabric, the surface layer 110 may be subjected to water repellent or antifouling processing. The fabric of the surface layer 110 is not particularly limited and may be polyester, nylon glass, nylon brushed paper, polarpolis, tricoat, poly brushed paper, or the like.

2, the moisture-permeable waterproof fabric of the present invention may be composed of a surface layer 110, nanofiber nonwoven web 120 and coating layer 130.

It is preferable that the moisture-permeable waterproof fabric configured as described above has a water resistance of 8,000 to 15,000 mmH 2 O and a water vapor transmission rate of 10,000 to 15,000 g / m 2 / 24hr. The water pressure and moisture permeability value is slightly reduced because the nanofiber nonwoven web 120 is laminated with the surface layer 110, but excellent moisture permeability waterproof.

In the laminating step, the nanofiber nonwoven web 120 may be laminated on the top surface of the surface layer 110. The lamination can be maintained by applying only a constant compression without using a laminating method or the like. After the coating, the surface layer and the nanofiber nonwoven web layer 120 may be firmly bonded through UV curing.

In the coating step, the laminated fabric of the nonwoven web is coated with a polyurethane acrylate resin. At this time, the coating may be coated by immersing in the polyurethane acrylate coating liquid. Alternatively, the polyurethane acrylate coating liquid may optionally be coated on the surface of the nonwoven web layer by a spray method or a printing method.

The coating layer 130 formed on the upper surface of the nanofiber nonwoven web 120 of the moisture-permeable waterproof fabric is located on the surface in contact with the skin layer to facilitate the absorption of moisture and to reduce damage and protect the nanofiber membrane.

In the UV curing step, only the portion coated with the polyurethane acrylate solution is cured.

In the UV curing step, the ultraviolet output strength is preferably cured with irradiation energy of 0.6 to 4.0 / cm 2 . Moreover, as for ultraviolet irradiation time, 0.5 to 10 minutes are preferable, and 1 to 5 minutes are more preferable.

On the other hand, it is possible to optionally add a washing step, which is additionally formed with a washing step in order to remove it because the coating layer is not cured in the surface layer when immersing the fabric in the polyurethane acrylate coating liquid. The washing step may be washed with hot water 60 to 100 ℃.

Finally, the drying step may be performed, and dried at 80 to 130 ° C. using a dryer such as Tenter.

Figure 3 is a principle diagram of the waterproof waterproof fabric according to an embodiment of the present invention. Referring to FIG. 3, the moisture-permeable waterproof fabric is composed of a surface layer 110 and a nanofiber nonwoven web 120, and the moisture-permeable waterproof fabric is positioned above the skin layer to prevent the water molecules 11 and wind 13 from penetrating from the outside, The moisture (sweat) emitted from the skin layer passes through the nanofiber nonwoven web layer 120 and the coating layer 130 in the form of water vapor 15 and passes through the moisture-permeable waterproof surface layer 110 to feel comfortable.

Hereinafter, the Example and comparative example of this invention are demonstrated in detail. However, the present invention is not limited by the following examples.

Example  One

The surface layer is made of polyester fabric, and the polyurethane is electrospun on the upper surface of the surface layer, and the nanofibers having a diameter of 80 nm are made of a collector of 15 μm thick nonwoven web (Web Membrane), weighing 5 g / m 2, thickness. Consisting of 15 ㎛, air permeability of 0.8 cc / ㎠ / sec or more, water pressure 10,000 mmH2O or more, tensile strength 0.2 kgf / inch or more, elongation 70% or more, peeling strength 25 kgf / cm or more, moisture permeability 10,000 g / ㎡ / 24hr or more, pores After laminating a nanofiber nonwoven web with a pore size of 80% or more and a pore size of 1.0 μm or less on a surface layer, after immersing in a polyurethane acrylate resin solution and performing UV curing, washing with water at 60 ° C. and drying at 100 ° C. Was prepared.

Example  2

The surface layer is made of polyester fabric, and the polyurethane is electrospun on the upper surface of the surface layer, and the nanofibers having a diameter of 80 nm are made of a collector of 15 μm thick nonwoven web (Web Membrane), weighing 5 g / m 2, thickness. Consisting of 15 ㎛, air permeability of 0.8 cc / ㎠ / sec or more, water pressure 10,000 mmH2O or more, tensile strength 0.2 kgf / inch or more, elongation 70% or more, peeling strength 25 kgf / cm or more, moisture permeability 10,000 g / ㎡ / 24hr or more, pores After laminating a nanofiber nonwoven web having a pore size of 80% or more and a pore size of 1.0 μm or less on the surface layer, the polyurethane acrylate resin solution was sprayed onto the surface of the nanofiber web by spraying to apply a coating, followed by UV curing, and then at 100 ° C. It was dried to prepare a waterproof fabric.

Example  3 and 4

Examples 1 and 2 were carried out in the same manner as in Example 1, except that the surface layer was made of polyester fabric, the nanofiber nonwoven web was formed on the back of the surface layer, and the nylon glass cloth was applied on the back surface of the nanofiber nonwoven web. Proceeding from the same conditions as in Example 2 to prepare a moisture-permeable waterproof fabric.

Comparative example  One

Polyurethane coating on the back side of the polyester fabric fabric to prepare a moisture-permeable waterproof fabric.

Comparative example  2

A moisture-permeable waterproof fabric was prepared by top-coating an e-PTFE film having a porosity of 80% and a thickness of 35 μm on a polyester fabric fabric with hydrophilic polyurethane.

* Test Methods

1.Hydraulic Pressure-JIS L1092B / KS K 0592

The resistance of the fabric to water leaks and submersions is measured by applying a column of water to the surface of the fabric, measuring the height of the water column until three drops of water are seen, and confirming that the fabric does not penetrate to the height of the water column. It can be seen as the opposite of breathability. The thicker it is, the higher the water pressure level, but the functionality should be both high moisture permeability and water pressure level.

2. Water vapor permeability-JIS L 1099 A1 (calcium chloride method)

The amount of moisture passed through an area of 1 cm 2 for 24 hours is measured.

After measuring the initial weight, it is left in the constant temperature and humidity room (24 ℃, 65%), and after 24 hours the weight is checked to confirm the degree of moisture escape.

division Water pressure resistance (mmH 2 0) Permeability (g / ㎡ / 24hr) Example 1 10000 10000 Example 2 12000 13000 Example 3 12000 12000 Example 4 14000 15000 Comparative Example 1 7000 5000 Comparative Example 2 7000 3000

As shown in Table 1, the moisture-permeable waterproof fabric produced by the present invention showed superior characteristics compared to Comparative Examples 1 and 2.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be clear to those who have knowledge of.

Claims (13)

  1. In breathable waterproof fabric,
    A surface layer consisting of a distal layer;
    A nanofiber nonwoven web on an upper surface of the surface layer; And
    It includes a coating layer coated with a polyurethane acrylate on the upper surface of the nanofiber nonwoven web, water-resistant excellent moisture-permeable fabric characterized in that the water pressure of 8,000 to 15,000 mmH 2 O and water permeability of 10,000 to 15,000 g / ㎡ / 24hr.
  2. The method of claim 1,
    The moisture-permeable waterproof fabric is moisture-permeable waterproof fabric, characterized in that the UV curing is made.
  3. The method of claim 1,
    The surface layer is a moisture-permeable waterproof fabric having excellent moisture permeability, characterized in that is applied to weaving, knitting, or stretch fabric, such as natural or synthetic fibers.
  4. The method of claim 1,
    The nanofiber nonwoven web has a moisture-permeable waterproof fabric, characterized in that the pore size is 0.1 to 1.0 ㎛.
  5. The method of claim 1,
    The nanofiber nonwoven web has a weight of 4 to 7 g / ㎡, 10 to 30 ㎛ thick, tensile strength of 0.2 kgf / inch or more, elongation 70% or more, peel strength 25 kgf / cm or more, porosity 80% or more Waterproof breathable fabric with excellent moisture permeability.
  6. The method of claim 1,
    The cross-sectional shape of the nanofiber is a moisture-permeable waterproof fabric, characterized in that it is made of one or more selected from the group consisting of a circular, heteromorphic cross section, hollow fiber form and the form of mixing the capsule.

  7. In the manufacturing method of waterproof moisture-permeable fabric,
    Nanofiber nonwoven web manufacturing step of electrospinning polyurethane to produce nanofibers having a diameter of 70 to 100 nm in a nonwoven web form in a collector;
    Laminating step of bonding a surface layer made of fabric to a lower surface of the prepared nanofiber nonwoven web;
    A coating step of coating the laminated fabric with a polyurethane acrylate resin;
    UV curing step of curing the coated fabric in ultraviolet light; And
    Including the step of drying the cured fabric, water-resistant 8,000 to 15,000 mmH 2 O and water vapor permeability 10,000 to 15,000 g / ㎡ / 24hr manufacturing method of excellent moisture-permeable waterproof fabric, characterized in that.

  8. The method of claim 7, wherein
    The UV curing can be coated by immersing in a polyurethane acrylate resin solution, if the coating is immersed, the method of producing a moisture-permeable waterproof fabric further comprising the step of washing with water after the UV curing step.
  9. The method of claim 7, wherein
    UV curing is a method of producing a moisture-permeable waterproof fabric having excellent moisture permeability, characterized in that the coating of the nanofiber nonwoven web layer by a spray method or a printing method.
  10. The method of claim 7, wherein
    The surface layer is a method of producing a moisture-permeable waterproof fabric having excellent moisture permeability, characterized in that the natural fiber or synthetic fibers, such as weaving, knitting, or stretch fabric is applied.
  11. The method of claim 7, wherein
    The nanofiber nonwoven web is a method of producing a moisture-permeable waterproof fabric, characterized in that the pore size is 0.1 to 1.0 ㎛.
  12. The method of claim 7, wherein
    The nanofiber nonwoven web has a weight of 4 to 7 g / ㎡, 10 to 30 ㎛ thick, tensile strength of 0.2 kgf / inch or more, elongation 70% or more, peel strength 25 kgf / cm or more, porosity 80% or more Method for producing a moisture-permeable waterproof fabric with excellent moisture permeability.
  13. The method of claim 7, wherein
    The cross-sectional shape of the nanofibers is a method of producing a moisture-permeable waterproof fabric having excellent moisture permeability, characterized in that at least one selected from the group consisting of circular, heteromorphic cross section, hollow fiber form and the form of mixing the capsule.
KR1020100090696A 2010-09-15 2010-09-15 Ultraviolet-curable type fabric for waterproof and breathable and preparing the same KR101234044B1 (en)

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WO2014092461A1 (en) * 2012-12-11 2014-06-19 주식회사 아모그린텍 Waterproof sound transmitting sheet, and method for producing same
KR20150110104A (en) * 2014-03-24 2015-10-02 문병선 Method of manufacturing mat materials using paper mulberry
KR20180037784A (en) * 2016-10-05 2018-04-13 (주)에프티이앤이 An airpermeable, waterproof textile for clothes
KR20180037785A (en) * 2016-10-05 2018-04-13 (주)에프티이앤이 An airpermeable and waterproof textile for clothes
CN108532305A (en) * 2018-04-04 2018-09-14 苏州市苏宁床垫有限公司 A kind of nano-antibacterial non-woven fabrics
US10170097B2 (en) 2012-12-11 2019-01-01 Amogreentech Co., Ltd. Waterproof sound transmitting sheet, and method for producing same

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WO2014092461A1 (en) * 2012-12-11 2014-06-19 주식회사 아모그린텍 Waterproof sound transmitting sheet, and method for producing same
US9510075B2 (en) 2012-12-11 2016-11-29 Amogreentech Co., Ltd. Waterproof sound transmitting sheet, and method for producing same
US10170097B2 (en) 2012-12-11 2019-01-01 Amogreentech Co., Ltd. Waterproof sound transmitting sheet, and method for producing same
KR20150110104A (en) * 2014-03-24 2015-10-02 문병선 Method of manufacturing mat materials using paper mulberry
KR20180037784A (en) * 2016-10-05 2018-04-13 (주)에프티이앤이 An airpermeable, waterproof textile for clothes
KR20180037785A (en) * 2016-10-05 2018-04-13 (주)에프티이앤이 An airpermeable and waterproof textile for clothes
CN108532305A (en) * 2018-04-04 2018-09-14 苏州市苏宁床垫有限公司 A kind of nano-antibacterial non-woven fabrics

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