JP2021041550A - Breathable waterproof fabric, clothing comprising the same and method for producing the breathable waterproof fabric - Google Patents

Abstract

To provide a breathable waterproof fabric lightweight and having a soft feeling while having excellent breathability and waterproofness and providing a clothing in which discomfort upon movement is suppressed when being used for the clothing, a clothing comprising the same and a method for producing the breathable waterproof fabric.SOLUTION: A breathable waterproof fabric comprises a resin layer 2 of the first layer provided at the whole face of a cloth 1 and a resin layer 3 of the second layer further partially provided on the resin layer of the first layer. The resin coating weight of the resin layer of the first layer is 0.4 to 6.5 g/m2, and a stiffness based on a JIS L1096(2010) A method each of a part (A) not provided with the resin layer of the second layer and a part (B) provided with the resin layer of the second layer satisfies the relation of the part (A)/the part (B)=0.40 to 0.85 in both the longitude-latitude.SELECTED DRAWING: Figure 1

Description

The present invention relates to a moisture-permeable and waterproof fabric, clothing containing the same, and a method for producing the moisture-permeable and waterproof fabric. More specifically, the present invention is lightweight and has a soft texture while having excellent moisture permeability and waterproofness. The present invention relates to a moisture-permeable and waterproof fabric that provides clothing in which discomfort during exercise is suppressed when used for clothing, clothing that includes the moisture-permeable and waterproof fabric, and a method for producing the moisture-permeable and waterproof fabric.

For waterproof fabrics such as outdoor wear and raincoats, highly breathable fabrics are often used to reduce the feeling of stuffiness when worn, but recently, they have higher breathability and waterproofness and are lightweight. Therefore, there is a growing demand for a compact waterproof fabric with a soft texture.

As the moisture-permeable and waterproof cloth, for example, Patent Document 1 discloses a cloth coated with a polyurethane solution mainly obtained by dissolving a polyurethane resin in a solvent soluble in water, and then wet-coagulated.

Patent Document 2 discloses a method of first forming a porous film on a cloth and then forming a non-porous film on the porous film, and improving waterproofness and moisture permeability is achieved. ing.

JP-A-55-80583 Japanese Unexamined Patent Publication No. 60-196336

However, in the cloth described in Patent Document 1, it is necessary to increase the amount of resin adhered in order to obtain high waterproof performance, and as a result, there are drawbacks that the moisture permeation performance is lowered and the weight of the cloth is increased. there were. As for the fabric described in Patent Document 2, the weight of the fabric becomes heavy, and the same drawbacks as described above remain unsolved.
The present invention has been made in view of the above problems, and an object of the present invention is to have excellent moisture permeability and waterproofness, yet to be lightweight and soft in texture, and to give a feeling of discomfort during exercise when used for clothing. It is an object of the present invention to provide a moisture-permeable and waterproof fabric for providing a garment in which the amount of water is suppressed, and a garment containing the same, and a method for producing the moisture-permeable and waterproof fabric.

In order to solve the above problems, the moisture permeable and waterproof fabric according to the present invention includes the following aspects.
(1) It has a first resin layer provided on the entire surface of one side of the woven fabric, and a second resin layer in which a resin layer is partially provided on the first resin layer. The resin adhesion amount of the first layer resin layer is 0.4 to 6.5 g / m ² , and the portion (A) where the second layer resin layer is not provided and the second layer resin layer. The rigidity and softness of each of the portions (B) provided with the JIS L1096 (2010) A method satisfies the relationship of portion (A) / portion (B) = 0.40 to 0.85 in both warp and weft. A breathable and waterproof fabric characterized by this.
(2) The moisture-permeable and waterproof fabric according to (1) above, wherein the amount of resin adhered to the second resin layer is 10 to 50 g / m ^2.
(3) water resistance of the portion (A) is at 600mmH ₂ O or more, and wherein the moisture permeability based on JIS L1099 (2012) A-1 method is 3500g / m ² · 24hr or more, the The moisture-permeable and waterproof fabric according to (1) or (2).
(4) water resistance of the portion (B) is at 3000mmH ₂ O or more, and wherein the moisture permeability based on JIS L1099 (2012) B-1 method is 3500g / m ² · 24hr or more, the The moisture-permeable and waterproof fabric according to any one of (1) to (3).
(5) The air permeability of the part (A) based on the JIS L1096 (2010) A method (Frazier type method) is 0.01 to 1.00 ^{cm 3} / cm ² · s. ) To (4). The moisture-permeable and waterproof fabric according to any one of (4).
(6) The moisture-permeable and waterproof fabric according to any one of (1) to (5) above, wherein the basis weight of the portion (A) is 85 g / m ^{2 or less.}

The garment according to the present invention includes the following aspects.
(7) Clothing containing the moisture-permeable and waterproof fabric according to any one of (1) to (6) above.
(8) The portion (B) is characterized in that it forms at least a part of at least one or more parts selected from the group consisting of the shoulder, elbow, knee, waist, and buttocks of clothing. , The clothing according to (7) above.

The method for producing a moisture-permeable and waterproof fabric according to the present invention includes the following aspects.
(9) The second layer is formed only on at least a part of at least one or more parts selected from the group consisting of shoulders, elbows, knees, hips, and buttocks when the garment is manufactured. The method for producing a moisture-permeable and waterproof fabric according to any one of (1) to (6) above, which comprises providing a resin layer.

The moisture-permeable and waterproof fabric according to the present invention has excellent moisture permeability and waterproofness, is lightweight and has a soft texture, and can suppress discomfort during exercise when used for clothing. Therefore, it is particularly suitable for outdoor wear and the like. It is suitably used for various kinds of clothing such as raincoats.

A cross-sectional photograph (magnification magnification::) of the portion (B) of the moisture-permeable and waterproof fabric according to the embodiment of the present invention, which is imaged using a scanning electron microscope, and which is provided with the second resin layer. 2500 times). Regarding the manufacturing process of the moisture-permeable and waterproof fabric according to the present invention, a schematic explanatory view of the moisture-permeable and waterproof fabric after the step of providing the second resin layer only on the portion forming the elbow portion when the jacket is manufactured. Is.

Hereinafter, embodiments of the present invention will be described in detail, but the present invention is not limited to the following embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention. is there.

<Moisture permeable and waterproof fabric>
The moisture-permeable and waterproof cloth (hereinafter, also referred to as a cloth) according to the present invention has a first resin layer provided on the entire surface of one side of the woven fabric, and a resin layer partially on the first resin layer. Has a second resin layer provided in the above, the resin adhesion amount of the first resin layer is 0.4 to 6.5 g / m ² , and the second resin layer is provided. The rigidity and softness of the non-existing portion (A) and the portion (B) provided with the second resin layer based on the JIS L1096 (2010) A method are the portion (A) / portion (A) / portion (both warp and weft). B) is characterized in that the relationship of = 0.40 to 0.85 is satisfied.

Useful fiber materials constituting the textile in the present embodiment include polyester, nylon, acrylic, polyurethane, rayon such as acetate, cupra, and biscous, and in addition to these, polylactic acid, Chemical fibers such as aromatic polyamides, polyimides or polyphenylene sulfides, natural fibers such as cotton, linen, silk or wool, or blends, blends or interwovens of these materials can be used and are not particularly limited. Absent.

The cross-sectional shape of the fiber is also not particularly limited, and examples thereof include a round shape, a triangular shape, a star shape, a flat shape, a C shape, a hollow shape, a well shape, and a dock bone.

The structure of the woven fabric is not particularly limited, and any structure such as plain weave, twill weave, and satin weave can be used, but plain weave is preferably used for the purpose of making a lightweight thin cloth. Further, a ripstop, a double ripstop, or the like may be used for the purpose of improving the tear strength of the fabric.

The woven fabric may or may not be pre-colored. When pre-coloring the woven fabric, use a dye such as a disperse dye, a cationic dye, an acidic dye, a direct dye, a reactive dye, a virgin dye, or a sulfide dye, or a fluorescent whitening agent or a pigment. Can be colored. Further, various treatments usually performed at the time of coloring may be performed, such as a fixing treatment using synthetic tannin or the like, which is carried out when nylon is dyed with an acid dye. The material used for coloring the woven fabric is not particularly limited to these materials, and an appropriate material may be selected according to the material of the woven fabric.

Further, the coloring method includes methods such as dyeing, dyeing, and printing, and is not particularly limited.

The woven fabric is water-repellent, calendar, flame-retardant, antistatic, antibacterial and deodorant, antibacterial, UV-shielding, light-resistant, or water-absorbent, as long as it does not deviate from the intended purpose. It may be subjected to moisture absorption processing or the like. When a resin layer is provided on one side of the woven fabric by the coating process described later, from the viewpoint of preventing the resin to be coated from being impregnated from the eyes of the woven fabric and exposed to the back side of the fabric, the resin is coated in advance before the step of coating the resin. It is preferable to appropriately perform water-repellent processing, calendar processing, or both. It is particularly preferable to perform a water-repellent treatment because it also has an effect of preventing the clothes from getting wet due to rain or the like when the clothes are worn.

In the present embodiment, the first resin layer provided on the entire surface of one side of the woven fabric is not particularly limited as long as it can impart waterproofness to the fabric and has moisture permeability. Examples of the material of the first resin layer include polyethylene, polypropylene, polyvinyl chloride, polytetrafluoroethylene, polystyrene, acrylic resin, polyester, EPDM, urethane resin, polyvinyl alcohol, and triacetyl cellulose. Among them, clothing It is preferable to use urethane resin because it is flexible, has a good texture, and has excellent durability. The first resin layer may be a porous resin layer or a moisture-permeable non-porous resin layer. Specific examples thereof include a porous resin layer provided with a large number of pores through which water vapor can permeate by methods such as stretching, needle punching, laser perforation, mechanical foaming, chemical foaming, and wet coagulation, and the materials thereof include polyethylene, polypropylene, and poly. Examples thereof include vinyl chloride, polytetrafluoroethylene, polystyrene, acrylic resin, polyester, EPDM, urethane resin, polyvinyl alcohol, triacetyl cellulose, etc. Among them, polyester urethane resin, polycarbonate urethane resin, etc. because they do not cause water swelling. It is preferable to use the hydrophobic urethane resin of. Further, since the resin itself having moisture permeability functions as a moisture permeable film even if it is a non-porous film, it can also be used as a non-porous resin layer. Examples of the resin constituting the moisture-permeable non-porous resin layer include urethane resin, polyvinyl alcohol, triacetyl cellulose, polyester, etc. Among them, a polyether urethane resin, a moisture-permeable polycarbonate-based urethane resin, etc. because of their high moisture permeability. It is preferable to use the hydrophilic urethane resin of.

The amount of resin adhered to the first resin layer is 0.4 to 6.5 g / m ² , preferably 0.7 to 4.5 g / m ² , and more preferably 1.0 to 4.0 g / m. ² is good. If the amount of resin adhered to the first resin layer ^{exceeds 6.5 g / m 2} , the moisture permeability may be significantly deteriorated, the original texture of the woven fabric may be impaired, and the moisture permeable and waterproof fabric. Will be heavy. If the amount of resin adhered to the first resin layer ^{is less than 0.4 g / m 2} , the waterproof performance may not be sufficiently exhibited.

The thickness of the first resin layer is preferably 6.5 μm or less, preferably 5.0 μm or less, more preferably 4.5 μm or less, still more preferably 3.0 μm or less. If the thickness of the first resin layer exceeds 6.5 μm, the moisture permeable performance may be significantly deteriorated, the original texture of the woven fabric may be impaired, and the weight of the moisture permeable waterproof fabric becomes heavy. It ends up.
On the other hand, if the thickness of the first resin layer becomes too thin, the surface unevenness of the woven fabric makes the resin layer unclear when observed with a scanning electron microscope described later, and the entire surface of the woven fabric can be continuously covered. It may disappear. The moisture-permeable and waterproof fabric according to the present invention has a first resin layer provided on the entire surface of one side of the woven fabric, but in the present disclosure, "provided on the entire surface" means a recess on the surface of the woven fabric. Even if the gaps between the threads at the entanglement points are filled with resin and the surface protrusions are not covered with resin, this means a state in which resin that can exhibit waterproof performance is attached. From the viewpoint of exhibiting higher waterproof performance, it is preferable to provide the first resin layer so as to continuously cover the entire surface of the woven fabric, and it is more preferable that the thickness thereof is 0.4 μm or more. The thickness of the first resin layer can be 0.5 μm or more, 0.7 μm or more, or 1.0 μm or more.

Various additives may be added to the resin constituting the first resin layer without departing from the object of the present invention. For example, cross-linking agents such as isocyanate-based, oxazoline-based, epoxy-based, and carbodiimide-based, migration sublimation inhibitors such as activated carbon, inorganic fillers such as calcium carbonate and porous silica, cell conditioners such as surfactants, and polyoxyalkylenes. Moisture-imparting agents such as glycol, colorants such as pigments such as titanium oxide and carbon black, ultraviolet absorbers, antioxidants, softeners, penetrants, water repellents, emulsifiers, thickeners and the like can be mentioned.

In the present invention, a resin layer (second layer) is partially provided on the first resin layer. By using a moisture-permeable and waterproof fabric with such a structure, pressure is applied to the parts of the clothing that require special waterproofness, specifically, the ground, chairs, rucksacks, etc., and water is applied to the clothing from the outside. Especially high waterproofness is applied to the shoulders, elbows, knees, waist, and buttocks where it is easy to penetrate, and clothing that is highly breathable, lightweight, and has a soft texture on the body and other large areas of clothing. Can be manufactured.

As the second resin layer, a porous resin layer and a moisture-permeable non-porous resin layer can be used. As the second resin layer, the same materials and additives as those of the first resin layer can be used, but it is preferable to use a polycarbonate-based urethane resin having particularly excellent durability. For the convenience of partially laminating on the first resin layer, it is preferable to use a moisture-permeable non-porous resin layer that can be laminated in a simple process, and contains a moisture-permeable urethane resin from the viewpoint of flexibility and durability. It is more preferable to use a moisture-permeable non-porous resin layer. Further, by coloring by adding a pigment or the like to the resin constituting the second resin layer, the design can be improved, or the effect of guiding the separation process such as cutting or punching can be given. Can be done. In particular, in the case of laminating another woven fabric, knitted fabric, non-woven fabric or other fiber fabric as a backing material on the second resin layer described later, the portion (B) is the target portion of the garment in the sewing process. It is preferable because the color of the second resin layer, which can be seen through the fiber fabric during the separation step such as cutting or punching, can be used as a guide so as to match the position.

The amount of resin adhered to the second resin layer can be 10 g / m ² or more, 15 g / m ² or more, or 20 g / m ² or more, while 50 g / m ² or less and 45 g / m ² or less. , 40 g / m ² or less, 35 g / m ² or less, or 30 g / m ² or less. The amount of resin adhered to the second resin layer ^{is preferably 10 to 50 g / m 2} , more preferably 15 to 35 g / m ² , and even more preferably 20 to 30 g / m ² . If the amount of resin adhered to the second resin layer ^{exceeds 50 g / m 2} , the moisture permeability may be significantly reduced, the original texture of the woven fabric may be impaired, and the weight of the moisture permeable waterproof fabric. Will be heavy. From the viewpoint of exhibiting higher waterproof performance, the amount of resin adhered to the second resin layer ^{is preferably 10 g / m 2} or more.

The thickness of the second resin layer is preferably 10 to 50 μm, more preferably 15 to 35 μm, and even more preferably 18 to 30 μm. If the thickness of the second resin layer exceeds 50 μm, the moisture permeable performance may be significantly deteriorated, the original texture of the woven fabric may be impaired, and the weight of the moisture permeable waterproof fabric becomes heavy. .. From the viewpoint of exhibiting higher waterproof performance, the thickness of the second resin layer is preferably 10 μm or more.

In the present invention, the portion (A) where the second layer of the resin layer is not provided and the portion (B) where the second layer of the resin layer is provided are each rigid and soft based on the JIS L1096 (2010) A method. The degree satisfies the relationship of part (A) / part (B) = 0.40 to 0.85 in both the warp and the weft. If it is 0.40 or more, even if there are parts having different rigidity and softness in the clothes, it is difficult to give a sense of discomfort during exercise. Further, if it is 0.85 or less, the waterproof property of the portion (B) can be enhanced by the second resin layer. By using a moisture-permeable and waterproof fabric having such a structure, only a specific part of the garment has high waterproof performance, and even if there is a part where the total amount of resin adhered is large, a feeling of strangeness during exercise is felt. It is possible to manufacture clothing that is difficult to give.
The rigidity is more preferably when the portion (A) / portion (B) = 0.50 to 0.80, and even more preferably 0.60 to 0.80 in both the warp and the weft.
As the moisture-permeable and waterproof fabric in one embodiment, another woven fabric, knitted fabric, non-woven fabric or other fiber fabric may be laminated as a backing material on the first resin layer and the second resin layer. The fiber fabric can improve, for example, abrasion resistance, touch, and design.

Further, from the viewpoint of texture lightweight obtain a soft garment, basis weight of the portion (A) is preferably from 85 g / m ² or less, more preferably 75 g / m ^2, particularly preferably 70 g / m ² or less. On the other hand, from the viewpoint of obtaining sufficient durability as clothing, basis weight of the portion (A) is preferably from 20 g / m ² or more, 25 g / m ² or more preferably, 30 g / m ² or more is particularly preferable.

According to the moisture-permeable and waterproof fabric having the above structure, the waterproofness of the portion (A) of the moisture-permeable and waterproof fabric can be improved, for example, 600 mmH ₂ O or more, preferably 800 mmH ₂ O or more, and more. It is preferably possible to achieve a water resistance of _{1000 mmH 2 O or higher.} For parts of clothing such as the body where pressure is less likely _{to be applied, if the water resistance is 600 mmH 2} O or higher, sufficient waterproof performance can be obtained in practice. On the other hand, in order to increase the water resistance, the amount of resin adhered tends to increase. Therefore, from the viewpoint of obtaining clothes that are lightweight and have a soft texture, the water resistance of the portion (A) _{is preferably 35,000 mmH 2} O or less. 10000 mmH ₂ O or less is more preferable, and 5000 mmH ₂ O or less is particularly preferable.

According to the moisture-permeable and waterproof fabric having the above structure, the moisture permeability of the portion (A) of the moisture-permeable and waterproof fabric can be remarkably improved, for example, based on the JIS L1099 (2012) A-1 method. for moisture permeability, 3500g / m ² · 24hr or more, preferably 5500g / m ² · 24hr or more, more preferably, to achieve a moisture permeability of 7500g / m ² · 24hr. If the moisture permeability based on the A-1 method is 3500g / m ² · 24hr or more, it is possible to suppress the stuffiness in clothing sufficiently. Since the part (A) is used for the part where there is little chance of contact with the body, the moisture permeability is the above-mentioned A-1 method, which is a method for measuring the permeability of water vapor in the air, rather than the JIS L1099 (2012) B-1 method. value measured according to it is important, moisture permeability based on the B-1 method is preferably a 7500g / m ² · 24hr or more. On the other hand, since the evaporation of perspiration when the moisture permeability is too high resulting in cold prematurely body, moisture permeability based on the A-1 method is 20000g / m ² · 24hrs or less, or 15000g / m ² · 24hrs or less, and / or moisture permeability based on the B-1 method is 100000 g / m ² · 24hrs or less, or preferably not more than 50000g / m ² · 24hrs.

The air permeability of the part (A) can be appropriately set according to the intended use, but from the viewpoint of suppressing stuffiness in clothes, the JIS L1096 (2010) A method (Frazier type method) of the part (A) is used. Based air permeability ^{is preferably 0.01 cm 3} / cm ² · s or more, more preferably 0.02 cm ³ / cm ² · s or more, and 0.04 ^{cm 3} / cm ² · s or more. Is particularly preferable. On the other hand, the upper limit of the air permeability is not particularly limited, but the air permeability based on the JIS L1096 (2010) A method (Frazier type method) is 1.00 ^{cm 3} / cm ² · s or less, 0.50 ^{cm 3} / cm ² · s or less. , Or 0.10 ^{cm 3} / cm ² · s or less.

According to the moisture-permeable and waterproof fabric having the above structure, the waterproofness of the portion (B) of the moisture-permeable and waterproof fabric can be remarkably improved, for example, 3000 mmH ₂ O or more, preferably 4000 mmH ₂ O or more. , More preferably, it is possible to achieve a water resistance of _{5000 mmH 2 O or more.} It can be used to form shoulders, elbows, knees, hips, buttocks, etc., where pressure is applied to clothing that comes into contact with the ground, chairs, rucksacks, etc., and water easily penetrates into the clothing from the outside. The water resistance of the portion (B) is required to be higher than that of the portion (A). Specifically, 3000 mmH ₂ O or more is preferable, 4000 mmH ₂ O or more is more preferable, and 5000 mmH ₂ O or more is particularly preferable. .. On the other hand, in order to increase the water resistance, the amount of resin adhered tends to increase. Therefore, from the viewpoint of obtaining clothing that is lightweight, has a soft texture, and suppresses discomfort during exercise, the water resistance is 50,000 mmH ₂ O. The following is preferable, 30,000 mmH ₂ O or less is more preferable, and 15,000 mmH ₂ O or less is particularly preferable.

According to the moisture permeable and waterproof fabric having the above structure, the moisture permeability of the portion (B) of the moisture permeable and waterproof fabric can be remarkably improved, for example, based on the JIS L1099 (2012) B-1 method. for moisture permeability, 3500g / m ² · 24hr or more, preferably 6500g / m ² · 24hr or more, more preferably, to achieve the above moisture permeability 9000g / m ² · 24hr. If the moisture permeability based on the B-1 method is 3500g / m ² · 24hr or more, it is possible to suppress the stuffiness in clothing sufficiently. Since the part (B) is used for the part that often comes into contact with the body wet with sweat, the moisture permeability is more permeated by the water vapor generated from the water in contact with the fabric than the JIS L1099 (2012) A-1 method. the value measured in conformity with the B-1 method is the sex of the measurement method is important, it is preferable that the moisture permeability based on the a-1 method is 900g / m ² · 24hr or more, 1500 g / m and more preferably ² · 24 hr or more. On the other hand, since the evaporation of perspiration when the moisture permeability is too high resulting in cold prematurely body, moisture permeability based on the A-1 method is 20000g / m ² · 24hrs or less, or 15000g / m ² · 24hrs or less, and / or moisture permeability based on the B-1 method is 100000 g / m ² · 24hrs or less, or preferably not more than 50000g / m ² · 24hrs. The water resistance and moisture permeability of the parts (A) and parts (B) of the moisture-permeable and waterproof fabric in the above range are applied to the woven fabric described above, the first-layer resin layer, the second-layer resin layer, and the fiber fabric. This can be achieved by appropriately selecting and / or controlling the materials used and their properties (eg, thickness and pore size, etc.).

Hereinafter, an example of a method for producing a moisture-permeable and waterproof fabric according to the present invention will be specifically described.

First, a woven fabric as a base material is prepared. As the woven fabric, the above-mentioned one can be used, and if necessary, washing with hot water, smelting, relaxing, heat setting and the like are performed. The processing may be carried out by a known method. Of course, in order to impart performance other than the present invention, it is not denied that the processing is performed under special conditions.

In addition, if necessary, dyeing, printing, water repellent, antistatic, water absorption, SR, antibacterial deodorant, antibacterial, deodorant, UV shielding, flameproof, calendar processing are performed. You may. In particular, when the coating process described later is applied, it is preferable to perform a water repellent process and / or a calendar process from the viewpoint of preventing resin impregnation.

Subsequently, a first resin layer is provided on the entire surface of one side of the woven fabric. It is preferable to provide a continuous first resin layer on the entire surface of one side of the woven fabric.
As a means for providing the first resin layer on the entire surface of one side of the woven fabric, a laminating method in which a resin film prepared in advance is laminated on the woven fabric via an adhesive, or a film forming by directly applying the resin to the woven fabric. Examples include a coating method in which the resin is pressed against the woven fabric, a printing method in which the resin on the plate is pressed against the woven fabric, and a spray method in which the resin is sprayed onto the woven fabric. However, a coating method capable of applying a relatively small amount of resin to the woven fabric is preferably used. Be done.

As the coating method, a known coating method can be used. A liquid monomer that reacts and cures, or a resin or resin composition that has been made fluid by heating and melting, or by appropriately using a solvent or dispersion medium, is used as a knife coater, blade coater, gravure coater, reverse coater, extrusion coater, etc. The resin can be applied to the woven fabric by applying it to one side of the woven fabric. When the resin layer is made into a porous layer by mechanical foaming, a resin having an appropriate viscosity may be foamed using a mixer or the like.

After applying the resin to the entire surface of one side of the woven fabric, the resin is cured by heating or irradiation with active energy rays, solidified by cooling, and the solvent or dispersion medium is removed by heat drying or wet coagulation to apply the resin to one side of the woven fabric. The first resin layer can be provided by forming a film on the entire surface of the above.

Subsequently, a second resin layer is partially provided on the first resin layer.
As a means for providing the second layer resin layer on the first layer resin layer, the same means as the means for providing the first layer resin layer can be used, but the second layer resin layer Is partially provided in a relatively complicated shape, so that a printing method is preferably used.

As the printing method, a known printing method can be used. A liquid monomer that reacts and cures, or a resin or resin composition that has been imparted fluidity by heating and melting, or by appropriately using a solvent or dispersion medium, is subjected to screen printing, flexographic printing, gravure printing, inkjet printing, or the like. It can be partially applied on the resin layer of the layer. Only the parts that require high waterproof performance, for example, at least one part selected from the group consisting of shoulders, elbows, knees, hips, and buttocks that require high waterproof performance when manufacturing clothing. It is preferable to apply the resin or the resin composition only to the portion forming at least a part thereof.
After that, a film can be formed by the same method as that of the first resin layer, and the second resin layer can be provided. In this way, only the part that requires high waterproof performance, for example, at least one selected from the group consisting of shoulders, elbows, knees, lumbar region, and buttocks that require high waterproof performance when manufacturing clothing. The second resin layer can be provided only on the portion of the above portion that forms at least a part.

When the resin layer is processed into a porous resin layer for the purpose of imparting moisture permeability to the resin layer, after the formation of the first resin layer or after the formation of the second resin layer. Or, after each step, processing such as stretching, needle punching, and laser drilling may be performed. However, when mechanically foamed or chemically foamed resin is used, or when wet solidification is performed, processing is performed under the condition that the resin layer becomes a porous resin layer at the same time as film formation. Further, after the processing under the condition that the resin layer becomes the porous resin layer at the same time as the film formation, further processing such as needle punching may be performed.

Next, if necessary, dyeing, printing, water repellent, antistatic, water absorption, SR, antibacterial deodorant, antibacterial, deodorant, UV shielding, flameproof, calendar, The finishing set may be performed by a known method. Further, for the purpose of improving abrasion resistance, touch, and design, another woven fabric, knitted fabric, non-woven fabric, or other fiber fabric may be laminated on the resin layer as a backing material. The resin layer and the backing material can be bonded using a known adhesive, and if necessary, thermocompression bonding, aging, or the like may be performed.

In the above processing, the woven fabric may be processed into a long shape, and each relatively small piece separated by cutting or punching into a predetermined shape such as the shape of a pattern when sewing clothing is processed. Alternatively, the processing may be started in a longer shape, separated into a predetermined shape in the middle of a series of steps to form small pieces, and the subsequent processing may be continued. When processing with a long shape, marks and contour lines that serve as guides during the separation process such as cutting and punching so that the part (B) matches the position of the target part of the garment in the sewing process, etc. Is added by a method such as printing, or a pigment is added to the resin constituting the second resin layer, especially when another fiber fabric is laminated as a backing material on the second resin layer. It is preferable that the second resin layer is colored to a concentration that can be seen through the fiber cloth.

<Clothing containing breathable waterproof fabric>
The garment containing the moisture permeable and waterproof fabric according to the present invention is a garment manufactured by using the moisture permeable and waterproof fabric, and preferably, the portion (B) provided with the second resin layer is provided. The garment is characterized in that it forms at least a part of at least one or more parts selected from the group consisting of a shoulder, an elbow, a knee, a waist, and a buttock. Specific examples include windbreakers, coats, jackets, yackes, anoraks, ski wear, snowboard wear, a pair of feathers, and work clothes.

The garment containing the moisture-permeable and waterproof fabric according to the present invention has particularly high waterproofness in the part where the waterproofness of the garment is particularly required, and is highly permeable and lightweight in the body and other large areas of the garment. It is possible to provide clothing that has a soft texture and suppresses discomfort during exercise.

Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples, but the present invention is not limited thereto, and it is all the present invention that modifications are made without departing from the object of the present invention. Included in the technical scope of. The performance evaluations described in the examples and comparative examples of the present invention were carried out by the following methods. Further, "parts" in Examples and Comparative Examples means "parts by mass".

<Metsuke and resin adhesion amount>
^{A 100 cm 2} test piece was taken from the portion (A) where the second resin layer was not provided, the mass was measured, ^{and the value converted into the mass per 1 m 2} was used as the basis weight of the portion (A).
The value obtained by subtracting the total value of the basis weights of the woven fabric and the backing material from the basis weight of the portion (A) was taken as the resin adhesion amount of the first resin layer.
^{Further, a 100 cm 2} test piece was collected from the portion (B) provided with the second resin layer, the mass was measured, ^{and the value converted into the mass per 1 m 2} was used as the basis weight of the portion (B). .. The value obtained by subtracting the basis weight of the portion (A) from the basis weight of the portion (B) was taken as the amount of resin adhered to the resin layer of the second layer.
<Thickness of resin layer>
Using a scanning electron microscope (SEMEDX Type H type: Hitachi High-Technologies Corporation), observe the cross section of the moisture-permeable and waterproof fabric at 1000 to 5000 times, and observe the thickness of the first resin layer at any 5 locations. Was measured, the average value thereof was obtained, and the thickness of the resin layer was determined. The thickness of the second resin layer was also determined by the same method.

<Rigidity>
JIS L1096 (2010) A method (45) was obtained for the test pieces collected from each of the portion (A) in which the second resin layer was not provided and the portion (B) in which the second layer resin layer was provided. ° Rigidity and softness were measured according to the cantilever method). The warp and weft were measured 5 times each, and the average value was calculated. The value of the ratio of rigidity and softness was the value of the ratio of the respective average values. The ground plane of the test piece was a woven fabric surface.

<Water resistance>
The water resistance of the test piece collected from the portion (A) was measured by a method according to JIS L1092 (2009) A method (low water pressure method). When the measurement result _{exceeded 2000 mmH 2} O, the water resistance was measured again by a method according to JIS L1092 (2009) B method (high water pressure method) using a test piece collected from the part (A).
The water resistance of the test pieces collected from the portion (B) was all measured by a method according to JIS L1092 (2009) B method (high water pressure method).
The water contact surface of the test piece was the surface of the woven fabric.

<Humidity permeability>
Moisture permeability was measured based on JIS L1099 (2012) A-1 method (calcium chloride method) and JIS L1099 (2012) B-1 method (potassium acetate method), and the values converted to the amount of moisture permeability per 24 hours were converted into each. The water permeability was A-1 and the water permeability B-1.
For the measurement, test pieces collected from each of the part (A) and the part (B) were used.
The water contact surface of the test piece was a resin film surface.

<Breathability>
The test piece collected from the portion (A) was measured according to JIS L1096 (2010) A method (Frazier type method).

<Comfort during exercise>
Jackets made from the breathable and waterproof fabrics of each example and comparative example were tried on, and the comfort during exercise was evaluated in the following three stages.
⊚: The texture is very soft, and there is almost no discomfort regarding the movement of the joints.
◯: The texture is soft and there is not much discomfort regarding the movement of joints.
X: The texture is hard, or there is a sense of discomfort regarding the movement of the joints.

Example 1
Nylon ripstop fabric (fiber thickness: warp 22 decitex / 20 filaments, weft 22 decitex / 20 filaments. Fiber density: warp 224 / 2.54 cm, weft 149 / 2.54 cm, grain: 40.4 g / m ² ) was dyed in a navy color with an acid dye.
Next, this nylon fabric is subjected to water repellent treatment using a 5% aqueous solution of Asahi Guard AG-E081 (fluorine-based water repellent, manufactured by AGC Co., Ltd.), and then at 170 ° C., pressure (linear pressure) 128 kgf / cm. The nylon cloth that had been calendar-processed in the above was used as the woven fabric.

Next, the following resin composition 1 was applied to the calendar-processed surface of the woven fabric by a coating method using a knife coater. Subsequently, heat treatment was performed at 120 ° C. for 90 seconds to provide a first resin layer on the entire surface of one side of the woven fabric. When the cross section of the obtained resin layer was observed with a scanning electron microscope, the resin layer was a non-porous layer.

<Resin composition 1>
Chrisbon S-525 100 parts (moisture permeable polyether urethane resin solution, manufactured by DIC Corporation)
2-Butanone (MEK) 40 parts (solvent for dilution)
Coronate HL 1 part (isocyanate cross-linking agent, manufactured by Tosoh Corporation)

Next, the outlines of the sleeve parts of the jacket shown in FIGS. 2 and 5 were screen-printed on the first resin layer using a screen. Subsequently, the following resin composition 2 was screen-printed on the portion shown in FIG. 2-6 using an 800 mesh screen, heat-treated at 150 ° C. for 90 seconds, and on the first resin layer, FIG. A moisture-permeable and waterproof fabric having a second resin layer provided on the portion shown in No. 6 was obtained. The performance of the obtained moisture-permeable and waterproof fabric is shown in Table 1.

<Resin composition 2>
Superflex 650 100 parts (moisture permeable polycarbonate urethane resin, manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.)
Duranate WB40-100 Part 1 (Isocyanate-based cross-linking agent, manufactured by Asahi Kasei Corporation)
Neo Sticker N 1.5 parts (thickener, manufactured by Nicca Chemical Co., Ltd.)

Using the obtained moisture-permeable and waterproof fabric, a jacket was produced by cutting and sewing along the printed contour line so that the portion 6 provided with the second resin layer became the elbow portion. Table 1 shows the results of trying on the jacket and evaluating the comfort during exercise.

Example 2
A moisture-permeable and waterproof fabric and a jacket were obtained in the same manner as in Example 1 except that the amount of resin adhered to the first resin layer was changed. Table 1 shows the performance of the moisture-permeable and waterproof fabric and the evaluation results of the jacket.

Example 3
A woven fabric was prepared in the same manner as in Example 1, and the following resin composition 3 was applied to one side of the woven fabric by a coating method using a knife coater. The urethane resin was solidified by immersing it in water at 23 ° C. for 60 seconds, and further heat-treated at 120 ° C. for 120 seconds to provide a first resin layer on the entire surface of one side of the woven fabric. When the cross section of the obtained resin layer was observed with a scanning electron microscope, the resin layer was a porous layer.

<Resin composition 3>
Chrisbon MP-858 100 parts (polyester urethane resin solution, manufactured by DIC Corporation)
40 parts of N, N-dimethylformamide (DMF) (solvent for dilution)
Coronate HL 1 part (isocyanate cross-linking agent, manufactured by Tosoh Corporation)

Then, in the same manner as in Example 1, a moisture-permeable and waterproof cloth was obtained in which the second resin layer was provided on the first resin layer at the portion shown by 6 in FIG. Further, a jacket was produced in the same manner as in Example 1. Table 1 shows the performance of the moisture-permeable and waterproof fabric and the evaluation results of the jacket.

Example 4
A moisture-permeable and waterproof fabric and a jacket were obtained in the same manner as in Example 3 except that the amount of resin adhered to the first resin layer was changed. Table 1 shows the performance of the moisture-permeable and waterproof fabric and the evaluation results of the jacket.

Example 5
In the screen printing process of the second layer, the mesh used was changed to 1600 mesh, and the amount of resin adhered to the resin layer of the second layer was reduced. Got Table 1 shows the performance of the moisture-permeable and waterproof fabric and the evaluation results of the jacket.

Example 6
In the screen printing process of the second layer, the mesh used was changed to 400 mesh, and the amount of resin adhered to the resin layer of the second layer was increased. Got Table 1 shows the performance of the moisture-permeable and waterproof fabric and the evaluation results of the jacket.

Example 7
Polyester plain weave fabric (fiber thickness: warp 83 decitex / 72 filaments, weft 83 decitex / 72 filaments, fiber density: warp 110 / 2.54 cm, weft 93 / 2.54 cm, grain: 74.0 g / m ² ) Was dyed gray with a disperse dye.
Next, this polyester fabric was subjected to a water repellent treatment using a 5% aqueous solution of Asahi Guard AG-E081 (fluorine-based water repellent, manufactured by AGC Co., Ltd.), and then at 170 ° C. and a pressure (linear pressure) of 128 kgf / cm. The polyester fabric processed by the calendar was used as the woven fabric.

Next, the resin composition 3 was applied to one side of the woven fabric by a coating method using a knife coater. The urethane resin was solidified by immersing it in water at 23 ° C. for 60 seconds, and further heat-treated at 120 ° C. for 120 seconds to provide a first resin layer on the entire surface of one side of the woven fabric. When the cross section of the obtained resin layer was observed with a scanning electron microscope, the resin layer was a porous layer.

Next, the outlines of the sleeve parts of the jacket shown in FIGS. 2 and 5 were screen-printed on the first resin layer using a screen. Subsequently, the following resin composition 4 was screen-printed on the portion shown in FIG. 2-6 using an 800 mesh screen, heat-treated at 150 ° C. for 90 seconds, and on the first resin layer, FIG. A moisture-permeable and waterproof fabric provided with a second white resin layer in the portion shown in No. 6 was obtained, and a jacket was obtained in the same manner as in Example 1. Table 1 shows the performance of the moisture-permeable and waterproof fabric and the evaluation results of the jacket.

<Resin composition 4>
Superflex 650 100 parts (moisture permeable polycarbonate urethane resin, manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.)
Duranate WB40-100 Part 1 (Isocyanate-based cross-linking agent, manufactured by Asahi Kasei Corporation)
Neo Sticker N 1.5 parts (thickener, manufactured by Nicca Chemical Co., Ltd.)
DIALAC WHITE HS-7300 3 parts (white pigment, manufactured by DIC Corporation)

Example 8
As the resin used in the screen printing step of the second layer, the first layer serves as an intermediate material before laminating the backing material in the subsequent step in the same manner as in Example 3 except that the following resin composition 5 is used. A moisture-permeable and waterproof cloth was obtained in which a second red resin layer was provided on the resin layer in the portion shown by 6 in FIG.

<Resin composition 5>
Superflex 650 100 parts (moisture permeable polycarbonate urethane resin, manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.)
Duranate WB40-100 Part 1 (Isocyanate-based cross-linking agent, manufactured by Asahi Kasei Corporation)
Neo Sticker N 1.5 parts (thickener, manufactured by Nicca Chemical Co., Ltd.)
RYUDYE-W RED FFGR 5 parts (red pigment, manufactured by DIC Corporation)

Next, Tyforce NH-320 (moisture-curable hot-melt type polyurethane adhesive, manufactured by DIC Corporation) was heated to 110 ° C. using a gravure coater to melt it, and transferred in dots onto the resin layer. Then, the resin layer to which the adhesive was transferred and the nylon half tricot (fiber thickness: 9 decitex / 5 filaments. Grain: 10.8 g / m ² ) dyed gray with acid dye were face-to-face and bonded. , Heat-bonded at 100 ° C. using a nip roll. Subsequently, by aging at 70 ° C. for 72 hours, a moisture-permeable and waterproof fabric on which the backing material was laminated was obtained, and a jacket was obtained in the same manner as in Example 1. Table 1 shows the performance of the moisture-permeable and waterproof fabric and the evaluation results of the jacket.

Comparative Example 1
A moisture-permeable and waterproof fabric and a jacket were obtained in the same manner as in Example 3 except that the step of providing the second resin layer was not performed. Table 1 shows the performance of the moisture-permeable and waterproof fabric and the evaluation results of the jacket.

Comparative Example 2
A moisture-permeable and waterproof fabric and a jacket were obtained in the same manner as in Example 3 except that the amount of resin adhered to the first resin layer was changed. Table 1 shows the performance of the moisture-permeable and waterproof fabric and the evaluation results of the jacket. When the cross section of the moisture-permeable and waterproof fabric was observed with a scanning electron microscope, the amount of adhesion of the first resin layer was small and unclear, and the thickness could not be measured.

Comparative Example 3
A moisture-permeable and waterproof fabric and a jacket were obtained in the same manner as in Example 3 except that the amount of resin adhered to the first resin layer was changed. Table 1 shows the performance of the moisture-permeable and waterproof fabric and the evaluation results of the jacket.

Comparative Example 4
In the screen printing process of the second layer, the mesh used was changed to 2000 mesh, and the same as in Example 3 except that the amount of resin adhered to the resin layer of the second layer was reduced, the moisture permeable and waterproof fabric and the jacket. Got Table 1 shows the performance of the moisture-permeable and waterproof fabric and the evaluation results of the jacket.

Comparative Example 5
In the screen printing process of the second layer, the mesh used was changed to 250 mesh, and the amount of resin adhered to the resin layer of the second layer was increased. Got Table 1 shows the performance of the moisture-permeable and waterproof fabric and the evaluation results of the jacket.

As shown in Table 1, in Comparative Example 2 in which the amount of resin adhered to the first resin layer is 0.3 g / m ² , the water resistance of the body and other large area portion (A) is insufficient. In Comparative Example 1 in which the second resin layer is not provided, and ^{because the amount of resin adhered to the second resin layer is as small as 8.0 g / m 2} , the parts (A) and (B) In Comparative Example 4 in which the value of the rigidity-softness ratio (warp x weft) is 0.87 x 0.85, which is close to 1.0, the water resistance of the part (B) where the waterproofness of the garment is particularly required. Was inadequate. Further, in Comparative Example 3 in which the amount of resin adhered to the first resin layer was 6.6 g / m ² , both the part (A) and the part (B) had insufficient moisture permeability, and the jacket was tried on. As a result of evaluating the comfort during exercise, the texture was hard. Further, since the amount of resin adhered to the second resin layer ^{is as large as 60.1 g / m 2} , the value of the ratio of the rigidity and softness of the portion (A) and the portion (B) (transverse x latitude) is 0.39. In Comparative Example 5, which was as low as × 0.35, the moisture permeability of the portion (B) was insufficient, and as a result of trying on the jacket and evaluating the comfort during exercise, there was a sense of discomfort regarding the movement of the joints.

In contrast, the amount of resin adhered to the first resin layer is 0.4 to 6.5 g / m ² , and the value of the ratio of rigidity and softness is 0.40 to 0.85 for both the weft and the warp. All the moisture-permeable and waterproof fabrics of Examples 1 to 8 have excellent moisture permeability and waterproofness, and the jacket manufactured from these moisture-permeable and waterproof fabrics has a soft texture and movable joints. There was no discomfort regarding. In particular, it is produced from the moisture-permeable and waterproof fabrics of Examples 1 to 5 and 8 in which the basis weight of the portion (A) is 75 g / m ² or less, and the value of the ratio of rigidity and softness is 0.50 or more in both the warp and the weft. The jacket was very soft in texture, and there was almost no discomfort regarding the movement of the joints. Further, in Examples 1 to 3 and 5 to 8 in which the amount of resin adhered to the first resin layer was 4.5 g / m ² or less, the moisture permeability of the portion (A) was particularly excellent.

1 Woven fabric 2 1st layer resin layer 3 2nd layer resin layer 4 Jacket outer sleeve parts 5 Jacket inner sleeve parts 6 Part where the 2nd layer resin layer is provided (B)

Claims (9)

It has a first resin layer provided on the entire surface of one side of the woven fabric, and a second resin layer in which a resin layer is partially provided on the first resin layer. The amount of resin adhered to the resin layer of the second layer is 0.4 to 6.5 g / m ² , and the portion (A) where the resin layer of the second layer is not provided and the resin layer of the second layer are provided. The rigid and softness of each of the parts (B) based on the JIS L1096 (2010) A method satisfies the relationship of part (A) / part (B) = 0.40 to 0.85 in both warp and weft. Breathable and waterproof fabric. The moisture-permeable and waterproof fabric according to claim 1, wherein the resin adhesion amount of the second resin layer is 10 to 50 g / m ^2. Wherein the water resistance of the portion (A) is at 600mmH ₂ O or more, and is JIS L1099 (2012) moisture permeability based on the A-1 method is 3500g / m ² · 24hr or more, according to claim 1 or 2. The moisture-permeable and waterproof fabric according to 2. Wherein the water resistance of the portion (B) is at 3000mmH ₂ O or more, and is JIS L1099 (2012) moisture permeability based on the B-1 method is 3500g / m ² · 24hr or more, claim 1 The moisture-permeable and waterproof fabric according to any one of 3. Claims 1 to 4, wherein the air permeability of the portion (A) based on the JIS L1096 (2010) A method (Frazier type method) is 0.01 to 1.00 ^{cm 3} / cm ^{2 · s.} The moisture-permeable and waterproof fabric according to any one of the items. The moisture-permeable and waterproof fabric according to any one of claims 1 to 5, wherein the basis weight of the portion (A) is 85 g / m ^{2 or less.} Clothing containing the moisture-permeable and waterproof fabric according to any one of claims 1 to 6. The claim is characterized in that the portion (B) forms at least a part of at least one or more parts selected from the group consisting of a shoulder, an elbow, a knee, a waist, and a buttocks of clothing. The clothing according to 7. The second resin layer is applied only to at least a part of at least one or more parts selected from the group consisting of shoulders, elbows, knees, hips, and buttocks when the garment is manufactured. The method for producing a moisture-permeable and waterproof fabric according to any one of claims 1 to 6, wherein the fabric is provided.

Images