WO2015119037A1 - 防水布帛およびこれを用いた繊維製品 - Google Patents
防水布帛およびこれを用いた繊維製品 Download PDFInfo
- Publication number
- WO2015119037A1 WO2015119037A1 PCT/JP2015/052514 JP2015052514W WO2015119037A1 WO 2015119037 A1 WO2015119037 A1 WO 2015119037A1 JP 2015052514 W JP2015052514 W JP 2015052514W WO 2015119037 A1 WO2015119037 A1 WO 2015119037A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fabric
- urethane resin
- waterproof
- resin film
- fiber
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/10—Fibres of continuous length
- B32B2305/18—Fabrics, textiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2375/00—Polyureas; Polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2437/00—Clothing
Definitions
- the present invention relates to a waterproof fabric.
- the present invention relates to a waterproof fabric that can be used even in a low temperature environment.
- Waterproof fabrics are used in a variety of materials as materials for preventing the invasion of water such as rain, such as clothes such as wings, ski wear, and windbreakers, as well as tents and shoes.
- the waterproof fabric has a waterproof resin film laminated on one or both sides of the fiber fabric, so that not only the waterproof property but also moisture in the clothing can pass through to prevent moisture in the clothing and condensation of water.
- Patent Document 1 Patent Document 2
- Such waterproof fabrics are used in various environments, and are used in an environment of about -15 ° C to 5 ° C for winter sports such as ski wear and about 30 to 50 ° C for mid-summer work clothes. Sometimes. Furthermore, it may be used in an environment of about -40 ° C in a freezer, in the South Pole or the North Pole and at higher altitudes.
- these various environments particularly when used in a low temperature environment, there is a concern about the hardening of the waterproof fabric.
- As a waterproof garment to be used in a low temperature environment one having a porous polytetrafluoroethylene film having moisture permeability and water resistance on the inside facing the body of an air cushioning material is known. (Patent Document 3)
- Patent Document 3 no consideration has been given to curing of waterproof fabrics and deterioration of waterproof properties in a low-temperature environment, and this technology relates to backing materials and batting.
- the resin itself may be cured under a low temperature environment of about ⁇ 40 ° C., but it has also been found that the waterproof property of the waterproof fabric may be lowered. This is because the resin film of the waterproof fabric used for clothes etc. loses flexibility and cures in a low temperature environment, and the resin film breaks when the wearer wearing the clothes moves, or adheres to the waterproof fabric.
- the waterproof fabric is hardened by the generated ice, and if it is worn as clothing, the generated ice is cracked, and the resin film is damaged at the corners, etc. It is speculated that this is the cause.
- waterproof fabrics are used as the outer fabric of textile products such as clothes, and those having a textile fabric on the inside (body side) of the textile product are less susceptible to low temperatures because the textile fabric is inside the clothing.
- the texture may be cured in a low temperature environment of about ⁇ 40 ° C. Therefore, in the present invention, the waterproof fabric that includes the resin film can suppress the hardening of the texture of the waterproof fabric and can suppress the deterioration of the waterproof property even in an extremely cold and low temperature environment of ⁇ 40 ° C. or less. The purpose is to provide.
- the present invention has the following configurations (1) to (7).
- the fiber fabric used on the inside of the fiber product has a water pickup amount of 100 g / m 2 or less, as described in (1) or (2) above Waterproof fabric.
- the waterproof fabric of the present invention can provide a waterproof fabric capable of suppressing the hardening of the texture of the waterproof fabric and maintaining the waterproof property even in a low temperature environment. If the waterproof fabric of the present invention is used for textile products such as windbreakers, coats, jackets, jackets, anoraks, ski wears, snowboard wears, goggles, work clothes, tents, sleeping bags, hats, shoes, etc. Curing of the texture of the product can be suppressed, and deterioration of waterproofness can be suppressed.
- the waterproof fabric of the present invention is a waterproof fabric in which a fiber fabric is laminated on at least one surface of a urethane resin film having a glass transition point (Tg) of less than ⁇ 30 ° C.
- the urethane resin film is mainly made of an ether urethane resin.
- the waterproof fabric is used as a surface material for textiles such as clothes.
- the waterproof fabric of the present invention differs from conventionally known waterproof fabrics by being used as a surface material for textiles such as clothes, and thus has a low temperature of ⁇ 20 ° C., ⁇ 30 ° C., ⁇ 40 ° C. or lower, and further about ⁇ 50 ° C.
- the waterproof fabric is used as a surface of a textile product such as clothes, and has a fabric on the inner side (body side) of the textile product. Can be suppressed.
- the lower limit at which these effects of the waterproof fabric of the present invention can be exhibited is about -70 ° C.
- the waterproof fabric of the present invention may be used as the backing of the textile product or as an intermediate layer between the outer backing and the backing.
- the urethane resin film of the present invention has a Tg of less than ⁇ 30 ° C. Even in a lower temperature environment, the temperature is preferably ⁇ 40 ° C. or less from the viewpoint of suppressing the curing of the texture of the waterproof fabric. More preferably, it is ⁇ 50 ° C. or lower. In the present invention, Tg is measured by differential scanning calorimetry (DSC).
- the urethane resin film is mainly made of an ether-based urethane resin. Mainly means that 50% or more by mass ratio of the urethane resin forming the urethane resin film is made of an ether-based urethane resin.
- ether type urethane resin what used polyether polyol for the polyol used as a raw material of urethane resin is said, and what used polyether ester polyol and these modified bodies may be used.
- a polyol using a polyether polyol that does not contain an ester is preferable.
- the urethane resin film may be a mixture of an ether urethane resin and an ester urethane resin without departing from the object of the present invention.
- the blending ratio of the ester urethane resin is less than 50% in terms of mass ratio in the urethane resin film.
- the thing using oxyethylene group containing polymer diol as a polyol is preferable.
- the urethane resin film may contain pigments, antistatic agents, antibacterial agents, ultraviolet absorbers, infrared absorbers, deodorants, antioxidants, hygroscopic agents, hygroscopic exothermic materials, flame retardants, and the like.
- the shape of the urethane resin film may be a nonporous film or a porous film.
- a porous film it may be formed by a wet method or may be formed by a dry foaming method. Further, it may be a laminate of a plurality of nonporous membranes, a laminate of a plurality of porous membranes, or a combination of a porous membrane and a nonporous membrane.
- the urethane resin film is preferably nonporous from the viewpoint of suppressing the texture hardening in the low-temperature environment of the waterproof fabric. In the case of a non-porous urethane resin film, even when the resin film contains water and is exposed to a low temperature environment, the texture is hardly cured.
- the urethane resin film is preferably porous from the viewpoint of suppressing a decrease in waterproofness of the waterproof fabric under a low temperature environment.
- a porous urethane resin film deterioration in waterproofness is unlikely to occur even when exposed to a low temperature environment.
- gaseous sweat is released from the human body when wearing clothes and performing work or sports even in a low temperature environment. While the sweat passes through the porous membrane, it becomes liquefied and becomes water due to the low temperature environment, and further solidifies and becomes ice, filling the pores of the porous membrane. As a result, the pores that were the path of the gas sweat are blocked, the moisture permeability is reduced, and the condensation in the clothes is promoted by the gaseous sweat that has lost its place of travel, in the porous urethane resin film.
- ice may be generated on the surface, the texture may be hardened, and the resin film may be damaged by the ice, resulting in a decrease in waterproofness.
- a porous polytetrafluoroethylene film laminated with a urethane resin film and a fiber fabric laminated may be used.
- the porous polytetrafluoroethylene is filled with urethane resin to make the entire membrane nonporous.
- the thickness of the urethane resin film is preferably 1 to 200 ⁇ m.
- the urethane resin film is nonporous, it is preferably about 3 to 100 ⁇ m, more preferably 3 to 80 ⁇ m, still more preferably 5 to 50 ⁇ m. If the thickness of the nonporous membrane is less than 1 ⁇ m, sufficient waterproof performance may not be exhibited, and if it exceeds 200 ⁇ m, the resulting waterproof fabric becomes hard.
- the thickness is preferably about 10 to 150 ⁇ m, more preferably 20 to 100 ⁇ m. If the thickness is less than 10 ⁇ m, sufficient waterproofness may not be exhibited. In particular, when used in a low temperature environment, the thickness is preferably 15 ⁇ m or more from the viewpoint of maintaining waterproofness. Moreover, when it exceeds 150 micrometers, there exists a possibility that the texture of a waterproof fabric may become hard.
- the urethane resin film and the fiber fabric may be laminated using an adhesive.
- the adhesive can be laminated by adhering the urethane resin film and the fiber cloth between the urethane resin film and the fiber cloth in a dotted, linear, lattice, or full-face shape. From the viewpoint of waterproofness, it is preferable that the adhesive is present on the entire surface in a solid state. Further, from the viewpoint of suppressing the generation of ice between the fiber cloth and the urethane resin film, it is preferable that the waterproof cloth has an adhesive on the entire surface between the urethane resin film and the fiber cloth.
- isocyanate-based, epoxy-based, oxazoline-based, or the like can be used, but an isocyanate-based, particularly urethane-based adhesive may be used.
- an ether type urethane resin is preferred, and particularly preferably the ether type having a Tg of less than ⁇ 30 ° C. as in the case of the urethane resin film.
- a urethane resin is preferred. More preferably, Tg is ⁇ 40 ° C. or lower, and further preferably ⁇ 50 ° C. or lower.
- the adhesive is an ether-based urethane resin having a Tg of less than ⁇ 30 ° C., curing of the waterproof fabric in a low-temperature environment is suppressed, and a decrease in waterproofness is also suppressed.
- the adhesive may be either a one-component type or a two-component type, or may be a moisture-curable hot-melt type.
- the fiber fabric materials useful for the waterproof fabric of the present invention include polyester, nylon, acrylic, polyurethane, acetate, rayon, polylactic acid, aramid, polyimide and other natural fibers, cotton, hemp, silk, wool and other natural fibers and the like. It may be a mixed fiber, a blended fiber, or a woven product, and is not particularly limited. Further, they may be in any form such as woven fabric, knitted fabric, non-woven fabric.
- the waterproof fabric of the present invention is used as a surface material for textile products such as clothes, and when used as a textile product such as clothes, the fiber fabric used on the outside (opposite to the body) of the textile product.
- the water pickup rate is preferably less than 10%, more preferably less than 5%, even more preferably less than 3%, and even more preferably less than 1%.
- the lower limit is preferably 0%.
- Fiber fabrics by adhering to the fiber fabrics that make up, repeatedly entering and exiting a warm office or tent and cold outside, and going in and out of a cold freezer and hot outside (which may be raining) Liquid water may adhere to the water and the water may freeze.
- a hydrophobic material such as polyester or wool
- the fiber fabric having a water pickup of less than 10%.
- the water pick-up rate of a fiber fabric shall be less than 10% by providing water-repellent agents, such as a fluorine type, a silicon type, and a paraffin type, to a fiber fabric. More preferably, polyester, nylon, aramid, polyimide, or wool subjected to a water-repellent finish. Particularly preferred is a polyester provided with the above water repellent. Further, from the standpoint that the water pickup of the fiber fabric is less than 10%, the water repellency of the fiber fabric is preferably 3 or more, more preferably 4 or more, and even more preferably 5.
- the waterproof fabric of the present invention is used as a surface material for textiles such as clothes, It is preferable that the amount of water pick-up of the fiber fabric used on the inside (body side) of the textile product is 100 g / m 2 or less. More preferably, it is 70 g / m 2 or less, more preferably 50 g / m 2 or less, and even more preferably 30 g / m 2 or less.
- the fiber fabric contains a large amount of sweat that is condensed, and the water resulting from the sweat freezes in a low-temperature environment and hardens the fiber fabric. There is a fear. Further, if the work and exercise are continued with the ice generated at this time attached, the resin film may be damaged at the corners of the ice and the waterproof property may be lowered. In other words, in a low-temperature environment below -30 ° C, sweat generated from the human body is condensed (liquefied) from the gaseous state in the vicinity of the outer surface of the clothes, even inside the textile products such as clothes, and liquefies. The frozen water freezes and the ice adheres to the inside of the waterproof fabric, the texture is hardened, or the work with the ice attached may damage the resin film at the corners of the ice and reduce the waterproof property.
- the fiber cloth used on the inside of the fiber product is provided with a water-repellent agent such as a fluorine-based resin, a silicon-based resin, or a paraffin-based fiber cloth.
- a water-repellent agent such as a fluorine-based resin, a silicon-based resin, or a paraffin-based fiber cloth. The amount of pick-up may be reduced to prevent the sweat generated from the body or the like from condensing and freezing inside the textile product.
- a fiber fabric or fiber material having water absorbency and hygroscopicity is used to reduce the humidity in the garment, or in the gaseous fiber fabric. Absorbing sweat or quickly condensing condensed liquid sweat on the fiber fabric to suppress the formation of thick ice that damages the urethane resin film, or using the heat generation effect of moisture absorption Thus, condensation of water inside the textile product, freezing, and damage to the urethane resin film may be suppressed.
- the fiber fabric having water absorbency and hygroscopicity may be one having water absorbency or hygroscopicity for the fiber itself, or by adding a hydrophilic compound or hygroscopic compound to the fiber to absorb water absorbency or hygroscopicity. May be imparted to the fiber fabric. Further, a fiber fabric having hygroscopicity and water repellency may be used.
- the water pick-up rate and the pick-up amount are determined by measuring the mass of the dry fiber fabric (A), then immersing the fiber fabric in water for about 10 seconds, and immediately squeezing with a mangle twice.
- the mass (B) of the fiber fabric after squeezing with the second mangle is obtained, and obtained by the following formulas (1) and (2).
- the fiber fabric may be subjected to dyeing and printing, antistatic processing, antibacterial and deodorizing processing, antibacterial processing, ultraviolet shielding processing, infrared absorption processing, infrared reflecting agent, and the like.
- the water pressure resistance is preferably 1000 mm or more. From the viewpoint of waterproofness, the water pressure resistance is preferably 3000 mm or more, more preferably 5000 mm or more, still more preferably 10,000 mm or more, and even more preferably 20000 mm or more.
- the water pressure resistance is a value measured by a method according to JIS L1092-2009 water resistance test (hydrostatic pressure method) A method (low water pressure method) or B method (high water pressure method).
- a nylon taffeta the total density of warp yarn and weft yarn per 2.54 cm is about 210) is piled on the test piece. Attached to the measurement.
- B method is what converted the unit into mm of A method for easy comparison with A method.
- the water pressure resistance after standing for 10 minutes in an environment of ⁇ 50 ° C. is 1000 mm or more. If the water pressure can be maintained by standing for 10 minutes in a -50 ° C environment and standing, it will be waterproof even when wearing clothes or other items made of waterproof fabric in a low-temperature environment for work or sports. Deterioration can be suppressed.
- the water pressure after squeezing is preferably 3000 mm or more, more preferably 5000 mm or more, still more preferably 10,000 mm or more, and even more preferably 20000 mm or more.
- evaluation was performed by the following two methods. (1) Put a sample of length 20cm ⁇ width 20cm in an environmental test tank (PSL-4SPH, manufactured by Tabai Espec Co., Ltd.) set at a temperature of ⁇ 50 ° C., let it stand for 10 minutes, then fold the sample in half and wear gloves Grasp the sample so that the hand-to-hand spacing is about 5 cm, and add 20 strokes up and down in the environmental test chamber.
- PSL-4SPH manufactured by Tabai Espec Co., Ltd.
- the sample is taken out from the environmental test tank and allowed to stand at room temperature for 24 hours, and then the water pressure resistance is measured by a method according to the JIS L1092-2009 A method (low water pressure method) or B method (high water pressure method).
- B method high water pressure method.
- the above (1) except that after the test sample was immersed in water for 5 minutes before being put into the environmental test tank, water droplets adhering to the surface of the sample were lightly wiped off with a towel.
- the water pressure resistance is measured by treating in an environmental test tank as in When the sample floated when immersed in water, a 100 g weight was placed on the sample so that the entire sample was immersed in water.
- the waterproof fabric of this invention is good in it being a moisture-permeable waterproof fabric which also has moisture permeability.
- the moisture permeability is measured by the calcium chloride method JIS L1099-2012 A-1 method and the potassium acetate method JIS L1099-2012 B-1 method.
- the moisture permeability by the calcium chloride method is 2000 g / m 2 ⁇ 24 hrs or more and / or
- the moisture permeability by the potassium acetate method is preferably 2000 g / m 2 ⁇ 24 hrs or more.
- the moisture permeability by the calcium chloride method is 5000 g / m 2 ⁇ 24 hrs or more and / or the moisture permeability by the potassium acetate method is 5000 g / m 2 ⁇ 24 hrs or more. More preferably, the moisture permeability by the calcium chloride method is 10,000 g / m 2 ⁇ 24 hrs or more and / or the moisture permeability by the potassium acetate method is 10000 g / m 2 ⁇ 24 hrs or more.
- the upper limit is about 20,000 g / m 2 ⁇ 24 hrs in moisture permeability by the calcium chloride method, and about 50000 g / m 2 ⁇ 24 hrs in moisture permeability by the potassium acetate method.
- the waterproof property is insufficient, or the moisture taken into the urethane resin film freezes at low temperatures, the texture of the waterproof fabric is cured, or the urethane resin film There is a risk of damage.
- the moisture permeability is converted to the moisture permeability per 24 hours for both the calcium chloride method and the calcium acetate method.
- the waterproof fabric of the present invention may be one in which a fiber fabric is laminated on at least one surface of a urethane resin film, but when used as a textile product such as clothes, it may be used as a surface material, Moreover, it is preferable to have a fiber fabric on the inner side (body side) of the fiber product. By having the preferable fiber fabric on the inner side (body side) of the textile product, it is possible to suppress a decrease in waterproofness due to freezing of water in a low temperature environment.
- the urethane resin film is physically abraded. It is possible to suppress a decrease in waterproofness due to freezing of water in a low temperature environment while preventing damage due to the like. It is particularly preferable that fiber fabrics are laminated on both sides of the urethane resin film. The fiber fabric is laminated on both sides of the urethane resin film, thereby preventing the urethane resin film from being damaged and waterproofing the waterproof fabric due to hardening of the texture of the waterproof fabric in a lower temperature environment and freezing of water. Can also be suppressed.
- the fiber fabrics laminated on the respective surfaces may be the same fiber fabric or different fiber fabrics.
- those using fiber fabrics suitable for the above-mentioned preferable conditions of those used on the inside of the garment (textile product) and those used on the outside of the garment (textile product) are preferable.
- the fiber fabric is laminated only on one surface of the urethane resin film, the pigment, the spherical particles, the scaly particles, the irregular particles, the infrared rays are formed on the surface of the urethane resin film on which the fiber fabric is not laminated.
- Urethane resin can be applied to any resin such as dots, lines, grids, geometric patterns, etc. by adding an absorbent, ultraviolet absorber, antistatic agent, water repellent, antibacterial agent, hygroscopic agent, etc. Functionality such as designability and hygroscopicity, or scratch resistance may be imparted to the film surface.
- the textile product of the present invention refers to a textile product produced by secondary processing such as sewing and fusion using at least a part of the waterproof fabric of the present invention as a surface material. Specific examples include, but are not limited to, windbreakers, coats, jackets, jackets, anoraks, ski wear, snowboard wear, goose, work clothes, tents, sleeping bags, hats and shoes.
- the textile product of the present invention may be one using a lining made of another fabric, or may be one in which a batting layer such as feathers or cotton is provided between the outer material and the lining material.
- a batting layer such as feathers or cotton is provided between the outer material and the lining material.
- the waterproof fabric of the present invention used for the outer material may be a fiber fabric on the outside (outside the body, etc.) of the textile product, or on the inside (body side) of the textile product. It may be used.
- the fiber cloth when not using a fiber fabric for an outer side but making an outer side a resin film, it is good to be formed using the urethane resin excellent in abrasion resistance.
- the fiber cloth When the outer side is a fiber cloth, the fiber cloth preferably has water repellency, and it is particularly preferable to use a fiber cloth that satisfies a preferable condition when the fiber cloth is used as the outer side.
- the fiber cloth for the inner side (body side) of a fiber product when using a fiber cloth for the inner side (body side) of a fiber product, it is good to use the fiber cloth which satisfy
- stacked the fiber fabric on both surfaces of the urethane resin film may be sufficient.
- the present invention will be described in more detail by taking a waterproof fabric in which a fiber fabric is laminated on both surfaces of a urethane resin film as an example.
- this invention is not limited to what is obtained with the manufacturing method demonstrated below. Further, in the following description, a part of the parts described above is partially omitted.
- a porous urethane resin film can be formed by mixing a known foaming technique, for example, air in the urethane resin to be applied, or adding a foaming agent in the urethane resin.
- a resin solution containing an adhesive is applied onto the obtained urethane resin film, dried at 50 to 130 ° C., and then the fiber fabric 1 is laminated on the urethane resin film surface to which the adhesive is applied.
- it can be produced by a dry laminating method in which a nip or a heating roll is used to nip and bond. Moreover, it can manufacture also by the wet laminating method which bonds the fiber fabric 1 without drying the resin solution containing an adhesive agent.
- the fiber fabric 1 may be subjected to scouring, dyeing, printing, antistatic processing, water repellent processing, antibacterial deodorization processing, antibacterial processing, ultraviolet shielding processing, calendar processing, and the like as necessary.
- water repellent treatment may be performed.
- the fiber fabric 1 when using the fiber fabric 1 as the inner side (body side) of clothes etc., it is good to perform a hydrophilic process, a moisture absorption process, or a water-repellent process.
- a solution mainly comprising an organic solvent such as dimethylformamide (hereinafter referred to as DMF), toluene, methyl ethyl ketone as a solvent is preferably selected.
- DMF dimethylformamide
- a colorant such as a pigment, a polyisocyanate crosslinking agent, a catalyst, an antioxidant, an ultraviolet absorber, a moisture absorbent, a flame retardant, and a deodorant may be added as described above. .
- This resin solution of urethane resin is applied on release paper using a knife coater, bar coater, comma coater, or the like.
- the application of the adhesive onto the nonporous urethane resin film obtained on the release paper is performed by using a knife coater, a bar coater, a comma coater, a gravure coater, or the like, as a resin solution containing the above-mentioned adhesive.
- the adhesive is applied in a linear shape, a lattice shape, or a solid surface shape.
- the resin solution containing the adhesive may be dissolved in an organic solvent such as dimethylformamide (hereinafter referred to as DMF), toluene, methyl ethyl ketone or the like, and if it is a hot melt type resin, it is heated and dissolved. It may be.
- a crosslinking agent, a catalyst, an antioxidant, an ultraviolet absorber, a hygroscopic agent, a flame retardant, a deodorant and the like may be added.
- aging is carried out at 50 to 100 ° C. for 12 to 72 hours as necessary to release the release paper.
- a resin solution containing an adhesive is applied to the surface of the nonporous urethane resin on which the fiber fabric 1 is not laminated.
- it can be produced by a dry laminating method in which the fiber fabric 2 is bonded after drying at 50 to 130 ° C.
- it can manufacture also by the wet laminating method which bonds a fiber fabric, without drying the resin solution containing an adhesive agent.
- a nonporous membrane is laminated on the fiber fabric 2 through an adhesive in the same manner as described above, and then aging is performed at 50 to 100 ° C. for 12 to 72 hours as necessary, and the fiber fabric is laminated on both surfaces of the urethane resin membrane.
- a waterproof fabric can be obtained.
- the fiber fabric 2 is subjected to scouring, dyeing and printing as well as the fiber fabric 1, and antistatic processing, water repellent processing, antibacterial and deodorizing processing, antibacterial processing, ultraviolet shielding processing, calendar processing and the like as necessary. Also good.
- water repellent treatment is preferably performed.
- the water repellent finish is not given beforehand to the textile fabric used for the outer side of textiles, such as clothes, it is good to give a water repellent finish after laminating
- the fiber fabric used as the inner side of clothes or the like is not subjected to hydrophilic processing, moisture absorption processing, or water repellent processing in advance, it is laminated on a urethane resin film and then subjected to hydrophilic processing, moisture absorption processing, or water repellent processing. Good.
- a Pick-up rate and pick-up amount The water pick-up rate and pick-up amount were determined by measuring the mass (A) of the dried fiber fabric, then immersing the fiber fabric in water for about 10 seconds, and then immediately squeezing with a mangle twice.
- the mass (B) of the fiber fabric after squeezing with the second mangle is obtained, and is obtained by the following formulas (1) and (2).
- the basis weight is the mass A method (JIS method) per unit area in the standard state of JIS L1096-2010.
- the mangle used the material of the rubber part nitrile butadiene rubber (NBR), hardness 80 degrees, winding thickness 12.5 cm, diameter 150 mm, and surface pressure 1750 kpa (17.9 kg / cm 2 ).
- NBR rubber part nitrile butadiene rubber
- C-1 Water pressure resistance after kneading in an environment of -50 ° C 1 Put a sample of length 20cm x width 20cm in an environmental test tank (PSL-4SPH, manufactured by Tabai Espec Co., Ltd.) set at a temperature of -50 ° C, leave it for 10 minutes in an open state, fold the sample in half, and wear gloves Hold the sample with the hand so that the distance between hands is about 5 cm, and add 20 scrubs up and down in the environmental test chamber. Thereafter, the sample is taken out from the environmental test tank and allowed to stand at room temperature for 24 hours, and then the water pressure resistance is measured by a method according to the JIS L1092-2009 A method (low water pressure method) or B method (high water pressure method).
- C-2 Water pressure resistance 2 after kneading in an environment of -50 ° C Before placing the test sample in an environmental test tank set at ⁇ 50 ° C., it was immersed in water for 5 minutes, and then the pretreatment was performed to remove the water droplets adhering to the surface of the sample with a towel. The water pressure resistance was measured in the same manner as in 1). When the sample floated when immersed in water, a 100 g weight was placed on the sample so that the entire sample was immersed in water.
- Example 1 Polyester plain fabric (warp warp 84 decites / 72 filaments, weft warp 84 decites / 72 filaments, basis weight 120 g / m 2 ) is dyed black with disperse dye, and fluorinated water repellent Asahi Guard AG-E081 (Asahi Glass Co., Ltd.) Manufactured by using a 3% aqueous solution (made by the factory) was used as the fiber fabric 1. The fiber fabric 1 is used on the opposite side (outside) from the body when it is used as clothing. The pickup rate of the fiber fabric 1 was less than 1%.
- Resin solution for making non-porous urethane resin film
- Ether polyurethane resin solid content 30%; Tg: -50 ° C
- Methyl ethyl ketone 60 parts
- White pigment 8 parts
- the fiber fabric 1 was superposed on the adhesive surface and bonded by thermocompression bonding (dry lamination).
- the release paper is peeled off, and a resin solution for adhesive similar to the above is applied to the surface of the nonporous urethane resin film on which the fiber fabric 1 is not laminated by using a comma coater with a slit of 0.08 mm and the nonporous It was applied in a solid form on the entire surface of the material film. Next, it was dried at 120 ° C. for 2 minutes. Fiber fabric 2 (Nylon half tricot; 18 dtex / 7 filament; dyed gray with acid dye; weight per unit: 36 g / m 2 ; pickup amount: 23 g / m 2 ) is superimposed on the urethane resin film surface coated with this adhesive.
- the fiber fabric 2 was bonded together by thermocompression bonding (dry lamination), and then aged at 70 ° C. for 48 hours. Next, finishing set was performed at 150 ° C. for 30 seconds to obtain a waterproof fabric in which fiber fabrics were laminated on both surfaces of the urethane resin film. In addition, the fiber fabric 2 is used on the body side (inside the garment) when used as the outer material of the garment.
- the physical properties of the waterproof fabric obtained are shown in Table 1.
- Comparative Example 1 The following resin solution was applied to one side of the same fiber fabric 1 as in Example 1 with a comma coater at a slit of 0.10 mm, solidified by immersion in water, desolvated, washed with water, dried, and 50 ⁇ m thick. A porous urethane resin film was formed. Thereafter, drying was performed at 150 ° C. for 30 seconds to obtain a waterproof fabric in which a fiber fabric was laminated on one side of a porous urethane resin film. Similar to Example 1, the fiber fabric 1 is used on the opposite side of the body (outside of the clothing) when used as the outer surface of the clothing.
- Resin solution for making porous urethane resin film
- Ester-based polyurethane resin solid content 25%; Tg: ⁇ 15 ° C.
- white pigment 8 parts
- Example 2 a fiber fabric 2 similar to that in Example 1 was laminated in the same manner as in Example 1 on the porous urethane resin film surface on which the fiber fabric 1 was not laminated to obtain a waterproof fabric.
- the fiber fabric 2 is used on the body side (inside the garment) when used as the outer material of the garment.
- the physical properties of the waterproof fabric obtained are shown in Table 1.
- Comparative Example 2 As the fiber fabric 2, a polyester sheet having a pickup amount of 104 g / m 2 (83 dtex / 72 filaments; basis weight 155 g / m 2 ) was used. In addition, the fiber fabric 2 is used on the body side (inside the garment) when used as the outer material of the garment. A waterproof fabric was obtained in the same manner as in Example 1 except that the above fiber fabric 2 was used. The physical properties of the waterproof fabric obtained are shown in Table 1.
- Example 2 As the fiber fabric 1, the polyester plain woven fabric used in Example 1 was subjected to water repellent processing using a 3% aqueous solution of NT-X620 (manufactured by NANO-TEX, USA) as a water repellent. The pickup rate of the fiber fabric 1 was 1.8%. A waterproof fabric was obtained in the same manner as in Example 1 except that the above fiber fabric 1 was used. The physical properties of the waterproof fabric obtained are shown in Table 1.
- polyester twill (warp yarn 84 decites / 72 filaments; weft warp yarn 167 decites / 36 filaments; basis weight 200 g / m 2 ) was dyed yellow with a disperse dye, and the fluorine-based water repellent Asahi Guard AG-E081 ( Asahi Glass Co., Ltd. (made by Asahi Glass Co., Ltd.) was used that was water-repellent processed using a 3% aqueous solution.
- the fiber fabric 1 is used on the opposite side (outside) from the body when it is used as clothing. The pickup rate of the fiber fabric 1 was less than 1%.
- the fiber fabric 2 As the fiber fabric 2, a polyester sheet having a pickup amount of 24 g / m 2 (22 dtex / 24 filament; basis weight 50 g / m 2 ) was used. In addition, the fiber fabric 2 is used on the body side (inside the garment) when used as the outer material of the garment.
- a waterproof fabric was obtained in the same manner as in Example 1 except that the above-described fabric was used as the fiber fabric 1 and the fiber fabric 2. The physical properties of the waterproof fabric obtained are shown in Table 1.
- Example 4 As the fiber fabric 1, nylon ripstop taffeta (warp yarn 26 decitex / 20 filament; weft warp yarn 26 decitex / 20 filament; basis weight 80 g / m 2 ) is dyed red with an acid dye, and the fluorine-based water repellent Asahi Guard AG- A water repellent processed product using a 3% aqueous solution of E081 (Asahi Glass Co., Ltd.) was used. The fiber fabric 1 is used on the opposite side (outside) from the body when it is used as clothing. The pickup rate of the fiber fabric 1 was less than 1%.
- the fiber fabric 2 As the fiber fabric 2, a nylon half tricot (weighing 10 g / m 2 ; dyed gray with an acid dye) having a pickup amount of 7 g / m 2 was used. In addition, the fiber fabric 2 is used on the body side (inside the garment) when used as the outer material of the garment.
- a waterproof fabric was obtained in the same manner as in Example 1 except that the above-described fabric was used as the fiber fabric 1 and the fiber fabric 2. The physical properties of the waterproof fabric obtained are shown in Table 1.
- Examples 1 to 4 using a urethane resin film obtained by using an ether type urethane resin having a glass transition point of less than ⁇ 30 ° C. have a texture even in an environment of ⁇ 50 ° C. Was not cured and could be used as a textile product such as clothes.
- Comparative Example 1 using an ester urethane resin having a glass transition point of ⁇ 30 ° C. or higher the texture is remarkably cured in an environment of ⁇ 50 ° C. and can be used as a textile product such as clothes. It was not a thing.
- Example 1 in which the water pickup of the fiber fabric used as the garment on the inside (body side) of the fiber product is less than 100 g / m 2 , the texture is somewhat cured in an environment of ⁇ 50 ° C. It could be used as a textile product such as clothes.
- Comparative Example 2 in which the amount of water pick-up exceeds 100 g / m 2 , the texture is remarkably cured and cannot be used as a textile product such as clothes. Furthermore, when the water pressure resistance was measured after returning to normal temperature, the waterproof property was greatly reduced.
Landscapes
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
防水布帛は、繊維布帛の片面あるいは両面に防水性のある樹脂膜が積層されており、防水性だけではなく、衣服内の湿気を通過させ、衣服内のムレや水の結露を抑制するために透湿性をも有する樹脂膜が繊維布帛に積層された構成のものが知られている。(特許文献1、特許文献2)
このような種々の環境の中で、特に低温環境下で用いられる場合には、防水布帛の硬化が懸念される。
低温環境下で使用される防水衣服としては、空気緩衝材料の体に向いたその内側に透湿性と防水性を有する多孔質ポリテトラフルオロエチレン膜を有するものが知られている。(特許文献3)
しかしながら、低温環境下における防水布帛の硬化や防水性の低下については検討されておらず、また、この技術は、裏材や中綿に関するものである。
また、防水布帛を衣服等の繊維製品の表地として用いるものであって、繊維製品の内側(身体側)に繊維布帛を有するものは、繊維布帛が衣服の内側であるため低温の影響を受けにくく、低温環境下であっても、風合いの硬化などの問題は生じないと思われていたが、-40℃程度の低温環境下では風合いが硬化するおそれがある。
したがって、本発明では、樹脂膜を含む防水布帛において、-40℃以下の極寒低温環境下においても、防水布帛の風合いの硬化を抑制し、また、防水性の低下を抑制することができる防水布帛を提供することを目的としている。
すなわち、本発明は、以下の構成(1)~(7)を有している。
前記ウレタン樹脂膜が、主としてエーテル系ウレタン樹脂からなることを特徴とする防水布帛。
(2)前記防水布帛が繊維製品の表地として用いられるものであることを特徴とする前記(1)に記載の防水布帛。
(3)繊維製品としたときに当該繊維製品の内側に使用される前記繊維布帛の水のピックアップ量が100g/m2以下であることを特徴とする前記(1)または(2)に記載の防水布帛。
(4)前記ウレタン樹脂膜が無孔質膜であることを特徴とする前記(1)~(3)のいずれかに記載の防水布帛。
(6)前記接着剤が、エーテル系ウレタン樹脂であることを特徴とする前記(5)に記載の防水布帛。
(7)前記接着剤に用いられるウレタン樹脂のガラス転移点が-30℃未満であることを特徴とする前記(5)または(6)に記載の繊維布帛。
(8)前記(1)~(7)のいずれかに記載の防水布帛を表地として用いた繊維製品。
本発明の防水布帛をウインドブレーカー、コート、ジャケット、ヤッケ、アノラック、スキーウエアー、スノーボードウエアー、合羽、作業服、テント、寝袋、帽子、靴などの繊維製品に用いれば、低温環境下においても、繊維製品の風合いの硬化を抑制し、また、防水性の低下を抑制することができる。
前記ウレタン樹脂膜が、主としてエーテル系ウレタン樹脂からなる。
また、防水布帛が衣服等の繊維製品の表地として用いると好ましい。本発明の防水布帛は、衣服等の繊維製品の表地として用いられることにより、従来公知の防水布帛とは異なり、-20℃、-30℃、-40℃以下、さらには-50℃程度の低温環境下であっても防水布帛の風合いの硬化を抑制しつつ、防水性の低下も抑制する効果を発揮することができる。
特に、本発明では、防水布帛が衣服等の繊維製品の表地として用いるものであって、繊維製品の内側(身体側)に繊維布帛を有するものに対し、特に風合いの硬化を抑制し、防水性の低下を抑制することができる。
本発明の防水布帛のこれらの効果が発揮できる下限は、-70℃程度である。-70℃以下の環境下で使用する繊維製品に用いる場合には、繊維製品の裏地や表地と裏地の間の中間層として、本発明の防水布帛を用いてもよい。
本発明のウレタン樹脂膜は、Tgが-30℃未満である。より低温環境下においても、防水布帛の風合いの硬化を抑制するとの観点からは、好ましくは-40℃以下がよい。さらに好ましくは-50℃以下がよい。
なお、本発明においてTgは、示差走査熱量測定法(DSC)にて測定したものである。
また、本発明の目的を逸脱しない範囲で、ウレタン樹脂膜は、エーテル系ウレタン樹脂とエステル系ウレタン樹脂とを配合したものであってもよい。ただし、エステル系ウレタン樹脂の配合割合は、ウレタン樹脂膜中質量比で50%未満である。
また、ウレタン樹脂膜として透湿性を有するものを用いる場合には、ポリオールとしてオキシエチレン基含有高分子ジオールを用いたものが好ましい。
防水布帛の低温環境下での風合い硬化抑制の観点からは、ウレタン樹脂膜は無孔質が好ましい。無孔質のウレタン樹脂膜の場合は、樹脂膜中に水が含まれた状態で、低温環境にさらされた場合においても、風合いの硬化が発生し難い。
また、防水布帛の低温環境下での防水性の低下を抑制するとの観点からはウレタン樹脂膜は多孔質が好ましい。多孔質のウレタン樹脂膜の場合、低温環境下にさらされた場合においても防水性の低下が発生しにくい。
なお、本発明の目的を逸脱しない範囲であれば、多孔質ポリテトラフルオロエチレン膜にウレタン樹脂膜を積層したものと繊維布帛を積層したものであってもよい。この場合は、上記の理由により、多孔質ポリテトラフルオロエチレンの気孔をウレタン樹脂で埋めてしまい、膜全体として無孔質としたものが好ましい。
ウレタン樹脂膜が、無孔質の場合には、3~100μm程度であるものがよく、より好ましくは3~80μm、さらに好ましくは5~50μmである。無孔質膜の厚みが1μm未満であると十分な防水性能を発揮することができないおそれがあり、200μmを超えると得られる防水布帛の風合が硬くなる。
ウレタン樹脂膜が、多孔質の場合には、10~150μm程度であるものがよく、より好ましくは20~100μmである。10μm未満であると十分な防水性を発揮できないおそれがある。特に、低温環境下で用いられた場合、防水性の維持との観点から15μm以上であるとよい。また、150μmを上回ると防水布帛の風合いが硬くなるおそれがある。
また、接着剤を全面ベタ状に介在させウレタン樹脂膜と繊維布帛を積層させる場合には、エーテル系ウレタン樹脂が好ましく、特に好ましくは上記ウレタン樹脂膜と同様にTgが-30℃未満のエーテル系ウレタン樹脂が好ましい。より好ましくはTgが-40℃以下、さらに好ましくは-50℃以下がよい。
接着剤のTgが-30℃未満のエーテル系ウレタン樹脂であれば低温環境下での防水布帛の硬化を抑制し、また、防水性の低下も抑制する。
接着剤は、一液型、二液型いずれであってもよく、また、湿気硬化型のホットメルトタイプのものであってもよい。
本発明の防水布帛に有用な繊維布帛の素材は、ポリエステル、ナイロン、アクリル、ポリウレタン、アセテート、レーヨン、ポリ乳酸、アラミド、ポリイミドなどの化学繊維、綿、麻、絹、羊毛等の天然繊維やこれらの混繊、混紡、交織品であってもよく、特に限定されるものではない。また、それらは織物、編物、不織布等いかなる形態であってもよい。
水のピックアップ率を10%未満とすることにより、繊維布帛への水の含浸を抑制し、0℃以下の低温環境下で繊維布帛に氷が発生することを抑止することにより風合いの硬化や防水性の低下を抑制する。0℃以下の環境で使用される場合は、液体の水が衣服の外側に付着する機会がないと考えられる場合もあるが、日中気温が上昇し雪や氷が解けて生じた水が衣服を構成する繊維布帛に付着したり、温かい事務所やテントの中と冷たい外の出入りや、冷たい冷凍庫の中と暑い外(雨が降っている場合もある)との出入りの繰り返しにより、繊維布帛に液体の水が付着し、その水が凍ってしまうおそれがある。
また、繊維布帛の水のピックアップを10%未満とするとの観点からは、繊維布帛のはっ水度が3級以上であると好ましく、4級以上がより好ましく、5級が更に好ましい。
つまり-30℃を下回るような低温環境下では、衣服等の繊維製品の内側であっても、人体から発する汗が、衣服内の表地側付近で気体の状態から、結露(液化)し、液化した水が凍って防水布帛の内側に氷が付着し、風合いが硬化したり、その氷が付着した状態での作業により、氷の角で樹脂膜が傷つき防水性が低下するおそれがある。
ここで、耐水圧とは、JIS L1092-2009耐水度試験(静水圧法) A法(低水圧法)またはB法(高水圧法)に準じた方法で測定した値をいう。なお、水圧をかけることにより試験片が伸びる場合には、試験片の上にナイロンタフタ(2.54cm当りのタテ糸とヨコ糸の密度の合計が210本程度のもの)を重ねて、試験機に取り付けて測定を行った。また、B法で測定したものは、A法と比較しやすくするため単位をA法のmmに換算したものである。
(1)タテ20cm×ヨコ20cmの試料を温度-50℃に設定した環境試験槽(タバイエスペック株式会社製、PSL-4SPH)に入れ、10分間放置した後、試料を二つ折りにし、手袋をした手で手と手の間隔を約5cmとなるように試料を掴み、環境試験槽内で上下に20回もみを加える。その後、環境試験槽から試料を取り出し、常温で24時間放置した後、前記のJIS L1092-2009 A法(低水圧法)またはB法(高水圧法)に準じた方法で耐水圧を測定する。
(2)試験用の試料を環境試験槽に入れる前に5分間、水に浸漬した後、試料の表面に付着している水滴をタオルで軽く拭き取り除去する処理をおこなった以外は上記(1)と同様に環境試験槽で処理して耐水圧を測定する。なお、水に浸漬させる際に試料が浮く場合には、試料の上に100gの重りを置いて試料全体を水に浸漬するようにした。
なお、透湿度は、塩化カルシウム法、酢酸カルシウム法ともに、24時間当りの透湿量に換算したものである。
また、衣服等の外側(身体の反対側)に繊維布帛を有さない場合は、防水布帛の外側の表面に水が付着した場合においても、容易に防水布帛の表面から脱落し、風合いの硬化の抑制、防水性の低下の抑制の観点から好ましい。
特に好ましくは、ウレタン樹脂膜の両面に繊維布帛が積層されていることが好ましい。ウレタン樹脂膜の両面に前記の繊維布帛が積層されていることにより、ウレタン樹脂膜の損傷を防ぐと共に、より低温環境での防水布帛の風合いの硬化、水の凍結に起因する防水布帛の防水性の低下も抑制することができる。
また、ウレタン樹脂膜の一方の面のみに繊維布帛が積層されている場合には、ウレタン樹脂膜の繊維布帛の積層されていない面に、顔料、球状粒子、鱗片状粒子、不定形粒子、赤外線吸収剤、紫外線吸収剤、帯電防止剤、撥水剤、抗菌剤、吸湿剤などを添加した樹脂を、点状、線状、格子状、幾何学柄状等任意の形状で付与し、ウレタン樹脂膜面に意匠性、吸湿性などの機能性、または耐擦過性を付与してもよい。
次に、本発明の防水布帛を、衣服等の表地として用いた繊維製品について説明を行う。なお、本発明は以下に説明する繊維製品に限定されるものではない。また、以下の説明では先に説明した部分は一部説明を省略する。
本発明の繊維製品とは、本発明の防水布帛を表地として少なくとも一部に用い、縫製や融着等の2次加工され製造された繊維製品をいう。具体的にはウインドブレーカー、コート、ジャケット、ヤッケ、アノラック、スキーウエアー、スノーボードウエアー、合羽、作業服、テント、寝袋、帽子、靴などが挙げられるがこれらに限定されるものではない。
本発明の繊維製品には、他の布帛からなる裏地を用いたものであってもよく、また、表地と裏地の間に、羽毛やワタなどの中綿層を設けたものであってもよい。また、本発明の防水布帛と同様の構造を有する布帛を表地、裏地、中綿として用いたものであってもよい。
また、繊維製品の内側(身体側)に繊維布帛を用いる場合には、前記の繊維布帛を内側として用いるときの好ましい条件を満たす繊維布帛を用いるとよい。本発明では、特に内側(身体側)に繊維布帛を有する防水布帛において、風合いの硬化を抑制し、防水性の低下を抑制する効果を発揮する。
なお、ウレタン樹脂膜の両面に繊維布帛を積層したものを用いて製造された繊維製品であってもよい。
まず、離型紙上に前記のエーテル系ウレタン樹脂の樹脂溶液を塗布した後、50~130℃にて乾燥し、必要に応じ120~170℃で熱処理し、無孔質のウレタン樹脂膜を形成する。
この際、公知の発泡技術、例えば、塗布するウレタン樹脂に空気を混在させたり、また、ウレタン樹脂内に発泡剤を添加することにより多孔質のウレタン樹脂膜を形成することもできる。
ウレタン樹脂膜を形成後、接着剤を含む樹脂溶液を得られたウレタン樹脂膜上に塗布し、50~130℃で乾燥後、接着剤を塗布したウレタン樹脂膜面に繊維布帛1を積層し、必要に応じ、ニップあるいは加熱ロールを用いてニップし、貼り合わせるドライラミネート法によって製造できる。
また、接着剤を含む樹脂溶液を乾燥せずに繊維布帛1を貼り合わせるウエットラミネート法によっても製造できる。
前記ウレタン樹脂溶液中には、前記と同様に顔料などの着色剤、ポリイソシアネート系架橋剤、触媒、酸化防止剤、紫外線吸収剤、吸湿剤、難燃剤、消臭剤なども添加してもよい。
前記の接着剤を含む樹脂溶液は、ジメチルホルムアミド(以下、DMF)、トルエン、メチルエチルケトンなどの有機溶媒で溶解させたものであってもよいし、ホットメルト型の樹脂であれば、加熱溶解したものであってもよい。
接着剤を含む樹脂溶液の中には、架橋剤や触媒、酸化防止剤、紫外線吸収剤、吸湿剤、難燃剤、消臭剤なども添加してもよい。
次に、無孔質のウレタン樹脂の前記繊維布帛1が積層されていない面に、接着剤を含む樹脂溶液を塗布する。前記と同様に50~130℃で乾燥後、繊維布帛2と貼り合わせるドライラミネート法によって製造できる。
また、接着剤を含む樹脂溶液を乾燥せずに繊維布帛を貼り合わせるウエットラミネート法によっても製造できる。
その後、前記と同様に無孔質膜を接着剤を介し繊維布帛2に積層した後、必要に応じ50~100℃でエージングを12~72時間行い、ウレタン樹脂膜の両面に繊維布帛が積層された防水布帛を得ることができる。
なお、衣服等の繊維製品の外側に用いられる繊維布帛にあらかじめ撥水加工が施されていない場合には、ウレタン樹脂膜に積層した後、撥水加工を施すとよい。また、衣服等の内側として用いられる繊維布帛にあらかじめ親水加工、吸湿加工、または撥水加工を施してない場合は、ウレタン樹脂膜に積層した後、親水加工、吸湿加工、または撥水加工を行うとよい。
以下の実施例における評価は次の方法によった。
水のピックアップ率及びピックアップ量は、乾燥した繊維布帛の質量(A)を測定した後、当該繊維布帛を水に10秒程度浸漬し、直ちにマングルで絞る作業を2回行い、2回目のマングルで絞った後の繊維布帛の質量(B)を求め、下記式(1)及び式(2)にて求めたものである。また、目付とは、JIS L1096-2010 標準状態における単位面積当たりの質量 A法(JIS法)をいう。
塩化カルシウム法 JIS L1099-2012 A-1法にて測定した。
酢酸カリウム法 JIS L1099-2012 B-1法にて測定した。
なお、いずれの透湿度も24時間当りの透湿量に換算した。
JIS L1092-2009 耐水度試験(静水圧法) A法(低水圧法)またはB法(高水圧法)に準じた方法で測定した。
水圧をかけることにより試験片が伸びる場合には、試験片の上にナイロンタフタ(2.54cm当りのタテ糸とヨコ糸の密度の合計が210本程度のもの)を重ねて、試験機に取り付けて測定を行った。
タテ20cm×ヨコ20cmの試料を温度が-50℃に設定した環境試験槽(タバイエスペック株式会社製、PSL-4SPH)に入れ、広げた状態で10分間放置した後、試料を二つ折りにし、手袋をした手で、手と手の間隔を約5cmとなるように試料を掴み、環境試験槽内で上下に20回もみを加える。その後、環境試験槽から試料を取り出し、常温で24時間放置した後、前記のJIS L1092-2009 A法(低水圧法)またはB法(高水圧法)に準じた方法で耐水圧を測定する。
試験用の試料を-50℃に設定した環境試験槽に入れる前に、5分間水に浸漬した後、試料の表面に付着している水滴をタオルで除去する前処理をおこなった以外は上記(1)と同様にして耐水圧を測定した。なお、水に浸漬させる際に試料が浮く場合には、試料の上に100gの重りを置いて試料全体を水に浸漬するようにした。
風合いは、上記C-1、C-2の条件で試料を10分間放置した後、それぞれの試料を環境試験槽の中で手袋をした手で触って評価した。常温のときと比べ、同等の場合を○、やや硬くなったものを△、衣服としては用いることが困難と思われるほど硬化したものは×と評価した。
JIS L1092-2009 スプレー試験に準じて繊維布帛1のはっ水度を測定した。
ポリエステル製平織物(たて糸84デシテッス/72フィラメント、よこ糸たて糸84デシテッス/72フィラメント。目付120g/m2)を分散染料で黒色に染色し、フッ素系撥水剤アサヒガードAG―E081(旭硝子(株)製)の3%水溶液を用い撥水加工したものを繊維布帛1として用いた。この繊維布帛1は、衣服として用いた場合、表地であって身体とは反対側(外側)に用いられるものである。なお、繊維布帛1のピックアップ率は1%未満であった。
エ-テル系ポリウレタン樹脂(固形分30%;Tg:-50℃) 100部
メチルエチルケトン 60部
白色顔料 8部
樹脂溶液(接着剤用)
エ-テル系ポリウレタン樹脂(固形分45%;Tg:-50℃) 100部
トルエン 50部
イソシアネ-ト系架橋剤 9部
有機錫系触媒 1部
この接着剤を塗布したウレタン樹脂膜面に繊維布帛2(ナイロン製ハーフトリコット;18デシテックス/7フィラメント;酸性染料でグレーに染色;目付36g/m2;ピックアップ量23g/m2)を重ね合わせて繊維布帛2を熱圧着により貼り合わせた(ドライラミネート)後、70℃で48時間エージングした。
次に、150℃で30秒間仕上げセットを行い、ウレタン樹脂膜の両面に繊維布帛が積層されている防水布帛を得た。なお、繊維布帛2は、衣服の表地として用いた場合、身体側(衣服の内側)に用いられるものである。
得られた防水布帛の物性等を表1に記載した。
実施例1と同様の繊維布帛1の片面に、下記樹脂溶液をコンマコ-タを用い、スリット0.10mmで塗布し、水中に浸漬し凝固させ、脱溶媒、水洗、乾燥し、厚さ50μmの多孔質のウレタン樹脂膜を形成した。その後、150℃で30秒間乾燥を行い、多孔質のウレタン樹脂膜の片面に繊維布帛が積層した防水布帛を得た。この繊維布帛1は、実施例1と同様に、衣服の表地として用いた場合、身体とは反対側(衣服の外側)に用いられるものである。
エステル系ポリウレタン樹脂(固形分25%;Tg:-15℃) 100部
メチルエチルケトン 50部
白色顔料 8部
得られた防水布帛の物性等を表1に記載した。
繊維布帛2として、ピックアップ量が104g/m2のポリエステル製天竺(83デシテックス/72フィラメント;目付155g/m2)を用いた。なお、繊維布帛2は、衣服の表地として用いた場合、身体側(衣服の内側)に用いられるものである。
繊維布帛2として上記のものを用いた以外は、実施例1と同様にして防水布帛を得た。
得られた防水布帛の物性等を表1に記載した。
繊維布帛1として、実施例1で用いたポリエステル平織物に、撥水剤としてNT-X620(米国 NANO-TEX社製)の3%水溶液を用いて撥水加工を行ったもの用いた。繊維布帛1のピックアップ率1.8%であった。繊維布帛1として上記のものを用いた以外は実施例1と同様にし、防水布帛を得た。得られた防水布帛の物性等を表1に記載した。
繊維布帛1として、ポリエステル製ツイル(たて糸84デシテッス/72フィラメント;よこ糸たて糸167デシテッス/36フィラメント;目付200g/m2)を分散染料で黄色に染色し、フッ素系撥水剤アサヒガードAG―E081(旭硝子(株)製)の3%水溶液を用い撥水加工したものを用いた。この繊維布帛1は、衣服として用いた場合、表地であって身体とは反対側(外側)に用いられるものである。なお、繊維布帛1のピックアップ率は1%未満であった。
繊維布帛1及び繊維布帛2として上記のものを用いた以外は、実施例1と同様にして防水布帛を得た。
得られた防水布帛の物性等を表1に記載した。
繊維布帛1として、ナイロン製リップストップタフタ(たて糸26デシテッス/20フィラメント;よこ糸たて糸26デシテッス/20フィラメント;目付80g/m2)を酸性染料で赤色に染色し、フッ素系撥水剤アサヒガードAG―E081(旭硝子(株)製)の3%水溶液を用い撥水加工したものを用いた。この繊維布帛1は、衣服として用いた場合、表地であって身体とは反対側(外側)に用いられるものである。なお、繊維布帛1のピックアップ率は1%未満であった。
繊維布帛1及び繊維布帛2として上記のものを用いた以外は、実施例1と同様にして防水布帛を得た。
得られた防水布帛の物性等を表1に記載した。
これに対し、ガラス転移点が-30℃以上のエステル系のウレタン樹脂を用いた比較例1では、-50℃の環境下では風合いが著しく硬化し、衣服等の繊維製品として用いることができるのものではなかった。
また、衣服として繊維製品の内側(身体側)に使用される繊維布帛の水のピックアップが100g/m2未満の実施例1~4では、-50℃の環境下において、多少風合いは硬化するものの衣服等の繊維製品として用いることができるものであった。
これに対し、水のピックアップ量が、100g/m2の超える比較例2では、風合いが著しく硬化し、衣服等の繊維製品として用いることができるのものではなかった。さらに、常温に戻して耐水圧を測定したところ防水性が大きく低下していた。
Claims (8)
- ガラス転移点が-30℃未満であるウレタン樹脂膜の少なくとも片面に繊維布帛が積層されてなる防水布帛であって、
前記ウレタン樹脂膜が、主としてエーテル系ウレタン樹脂からなることを特徴とする防水布帛。 - 前記防水布帛が繊維製品の表地として用いられるものであることを特徴とする請求項1に記載の防水布帛。
- 繊維製品としたときに当該繊維製品の内側に使用される前記繊維布帛の水のピックアップ量が100g/m2以下であることを特徴とする請求項1または2に記載の防水布帛。
- 前記ウレタン樹脂膜が無孔質膜であることを特徴とする請求項1~3のいずれか一項に記載の防水布帛。
- 前記ウレタン樹脂膜が接着剤を介して前記繊維布帛と接着されていることを特徴とする請求項1~4のいずれか一項に記載の防水布帛。
- 前記接着剤が、エーテル系ウレタン樹脂であることを特徴とする請求項5記載の防水布帛。
- 前記接着剤に用いられるウレタン樹脂のガラス転移点が-30℃未満であることを特徴とする請求項5または6に記載の防水布帛。
- 請求項1~7のいずれか一項に記載の防水布帛を表地として用いた繊維製品。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020167015811A KR102298944B1 (ko) | 2014-02-06 | 2015-01-29 | 방수 직물 및 이것을 이용한 섬유 제품 |
JP2015560956A JP6486282B2 (ja) | 2014-02-06 | 2015-01-29 | 防水布帛およびこれを用いた繊維製品 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014-021541 | 2014-02-06 | ||
JP2014021541 | 2014-02-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015119037A1 true WO2015119037A1 (ja) | 2015-08-13 |
Family
ID=53777844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/052514 WO2015119037A1 (ja) | 2014-02-06 | 2015-01-29 | 防水布帛およびこれを用いた繊維製品 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP6486282B2 (ja) |
KR (1) | KR102298944B1 (ja) |
WO (1) | WO2015119037A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018235668A1 (ja) * | 2017-06-21 | 2018-12-27 | 倉敷紡績株式会社 | 蓄熱性透湿防水布帛 |
CN109760374A (zh) * | 2017-11-10 | 2019-05-17 | 黄振正 | 复合布 |
TWI692405B (zh) * | 2019-01-07 | 2020-05-01 | 厚生股份有限公司 | 阻燃防水織物及其製造方法 |
JP2023500560A (ja) * | 2019-09-13 | 2023-01-10 | ザ ノース フェイス アパレル コーポレイション | 膜付き複合材料 |
US12005688B2 (en) | 2017-11-10 | 2024-06-11 | Chen-Cheng Huang | Composite cloth |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994000631A1 (en) * | 1992-06-19 | 1994-01-06 | Komatsu Seiren Co., Ltd. | Moisture-permeable waterproof cloth and production thereof |
WO1999020465A1 (fr) * | 1997-10-23 | 1999-04-29 | Komatsu Seiren Co., Ltd. | Tissu impermeable a l'eau mais permeable a l'humidite, et pellicule de resine permeable a l'humidite renforcee avec du papier anti-adhesif pour la production de tissu |
WO2001023458A1 (fr) * | 1999-09-30 | 2001-04-05 | Sekisui Chemical Co., Ltd. | Elastomere thermoplastique, son utilisation et son procede de production |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6047954B2 (ja) | 1978-12-06 | 1985-10-24 | 東レ株式会社 | コ−テイング布帛およびその製造方法 |
DE29505761U1 (de) | 1995-04-04 | 1996-08-01 | W.L. Gore & Associates Gmbh, 85640 Putzbrunn | Tieftemperatur-Schutzkleidung |
JPH11124774A (ja) | 1997-10-17 | 1999-05-11 | Toray Ind Inc | 透湿性防水布帛およびその製造方法 |
-
2015
- 2015-01-29 WO PCT/JP2015/052514 patent/WO2015119037A1/ja active Application Filing
- 2015-01-29 KR KR1020167015811A patent/KR102298944B1/ko active IP Right Grant
- 2015-01-29 JP JP2015560956A patent/JP6486282B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994000631A1 (en) * | 1992-06-19 | 1994-01-06 | Komatsu Seiren Co., Ltd. | Moisture-permeable waterproof cloth and production thereof |
WO1999020465A1 (fr) * | 1997-10-23 | 1999-04-29 | Komatsu Seiren Co., Ltd. | Tissu impermeable a l'eau mais permeable a l'humidite, et pellicule de resine permeable a l'humidite renforcee avec du papier anti-adhesif pour la production de tissu |
WO2001023458A1 (fr) * | 1999-09-30 | 2001-04-05 | Sekisui Chemical Co., Ltd. | Elastomere thermoplastique, son utilisation et son procede de production |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018235668A1 (ja) * | 2017-06-21 | 2018-12-27 | 倉敷紡績株式会社 | 蓄熱性透湿防水布帛 |
CN109760374A (zh) * | 2017-11-10 | 2019-05-17 | 黄振正 | 复合布 |
CN109760374B (zh) * | 2017-11-10 | 2021-11-30 | 黄振正 | 复合布 |
US12005688B2 (en) | 2017-11-10 | 2024-06-11 | Chen-Cheng Huang | Composite cloth |
TWI692405B (zh) * | 2019-01-07 | 2020-05-01 | 厚生股份有限公司 | 阻燃防水織物及其製造方法 |
JP2023500560A (ja) * | 2019-09-13 | 2023-01-10 | ザ ノース フェイス アパレル コーポレイション | 膜付き複合材料 |
Also Published As
Publication number | Publication date |
---|---|
KR102298944B1 (ko) | 2021-09-06 |
JPWO2015119037A1 (ja) | 2017-03-23 |
KR20160118217A (ko) | 2016-10-11 |
JP6486282B2 (ja) | 2019-03-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6486282B2 (ja) | 防水布帛およびこれを用いた繊維製品 | |
CA2600086C (en) | Layered product and textile product using the same | |
JP5463089B2 (ja) | 積層布帛およびその製造方法 | |
EP1568485B1 (en) | Waterproof and breathable composite film, and waterproof and breathable composite fabric | |
CN104015414A (zh) | 一种使用水性粘结剂的气凝胶复合布料及其制备方法 | |
JP2020509248A (ja) | 撥水性生地及びこれを含む撥水ダウン製品 | |
JPWO2008090877A1 (ja) | 透湿性防水シート及びその製造方法 | |
CN106010185B (zh) | 用于服装面料的高强度双组份薄膜 | |
Mukhopadhyay et al. | Waterproof breathable fabrics | |
JP6262660B2 (ja) | 透湿性防水シートおよびその製造方法 | |
JP7443062B2 (ja) | 防水布帛およびこれを用いた繊維製品 | |
JP2004256939A (ja) | 撥水性布帛およびそれを用いた衣料 | |
JP4048229B2 (ja) | 防水透湿性繊維製品用積層体 | |
JP5717521B2 (ja) | 透湿防水加工布帛 | |
JP2007210217A (ja) | 透湿性防水布帛 | |
JP4767012B2 (ja) | 透湿性防水布帛 | |
JP6422115B2 (ja) | 布帛及びその製造方法 | |
JP2003020574A (ja) | 透湿防水性ラミネート布帛の製造方法 | |
JP7372257B2 (ja) | 透湿防水性布帛およびこれを用いた繊維製品 | |
JPH0397970A (ja) | 吸放湿性防水コーティング布帛 | |
WO2024004784A1 (ja) | 透湿防水積層布、その製造方法及びこれを用いた衣服 | |
JP2002129479A (ja) | ソフト風合いの透湿防水性コーティング布帛の製造方法 | |
CN117858795A (zh) | 纤维层叠结构体和其制造方法 | |
TW202416851A (zh) | 透濕防水積層布、其製造方法及使用其之衣服 | |
JP2004291420A (ja) | 制電性透湿防水布帛 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15746274 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2015560956 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20167015811 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 15746274 Country of ref document: EP Kind code of ref document: A1 |