Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
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  • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
  • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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  • 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
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  • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
  • B32B37/1207—Heat-activated adhesive
• • B—PERFORMING OPERATIONS; TRANSPORTING
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  • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
  • B32B37/1284—Application of adhesive
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  • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
  • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
  • B32B5/022—Non-woven fabric
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  • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
  • B32B5/024—Woven fabric
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  • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
  • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
  • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
  • B32B5/275—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one woven fabric layer next to a non-woven fabric layer
• • B—PERFORMING OPERATIONS; TRANSPORTING
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  • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
  • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
  • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
  • B32B5/275—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one woven fabric layer next to a non-woven fabric layer
  • B32B5/277—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one woven fabric layer next to a non-woven fabric layer including an additional non-woven fabric layer
• • B—PERFORMING OPERATIONS; TRANSPORTING
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  • 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
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• • B—PERFORMING OPERATIONS; TRANSPORTING
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  • 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
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  • B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
  • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
  • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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  • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
  • D06N3/0006—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using woven fabrics
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  • B32B2305/00—Condition, form or state of the layers or laminate
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• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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• • D—TEXTILES; PAPER
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  • D06N2209/128—Non-permeable
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  • D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
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  • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
  • D06N7/0002—Wallpaper or wall covering on textile basis

Definitions

• the present invention relates to a fiber laminated structure that has high moisture permeability and waterproofness and excellent stretchability.
• polyurethane is dissolved using a dimethylformamide solvent, laminated on a fabric by coating or the like, and then introduced into water and solidified to form a microporous film.
• Patent Document 2 A method of laminating a resin film blended with woven and knitted fabrics (Patent Document 2), and a method of laminating a stretched and expanded microporous polytetrafluoroethylene film to a fabric (Patent Document 3). .
• this method uses non-stretchable fabrics, and the fiber laminated structure as a whole laminated with waterproof and moisture-permeable functional layers has no stretchability.
• JP-A-56-26076 JP-A-7-9631 Japanese Patent Publication No. 51-18991 Japanese Patent Application Laid-Open No. 2010-30289
• An object of the present invention is to provide a fiber laminated structure having waterproofness, high peel strength, and excellent durability.
• the present invention has the following configuration in order to solve the above problems.
• Fibers made of a polyurethane polymer with a fiber diameter of less than 1 ⁇ m are used on one side of a woven fabric that is stretchable at least in either the vertical direction or the horizontal direction, and the bulk height is 1.5 to 2.5 cm 3 . /g and a non-woven fabric web having a thickness of 20 to 60 ⁇ m exists through an adhesive A, and has water repellency.
• the fiber laminated structure of (1) or (2) above, wherein the nonwoven fabric web is a composite laminated web composed of three or more laminated layers.
• the fiber laminate structure of (1) or (2) above which has a resin layer or a non-porous membrane resin layer on the surface of the nonwoven web opposite to the surface in contact with the fabric.
• (14) Made of a woven fabric that is stretchable at least in either the vertical direction or the horizontal direction and a polyurethane polymer with a fiber diameter of less than 1 ⁇ m, with a bulk height of 1.5 to 2.5 cm 3 /g and a thickness of A method for producing a fiber laminated structure, in which a nonwoven fabric web of 20 to 60 ⁇ m is bonded with an adhesive A, and then subjected to water repellent treatment.
• the adhesive A is a hot-melt resin or a solvent-based adhesive
• the method of applying the adhesive to the nonwoven fabric web surface or fabric is a gravure coating method.
• At least one side of a fabric is coated with a nonwoven web made of fibers having a diameter of less than 1 ⁇ m and an adhesive (hereinafter referred to as “adhesive A” for bonding the fabric and the nonwoven web). ”) is laminated via.
• the woven fabric has stretchability at least in either the vertical direction or the horizontal direction. By having stretchability, it exhibits stretchability together with the laminated nonwoven fabric web.
• the elongation rate according to JIS L 1096B method (2010 version) is preferably 3% or more, more preferably 5% or more, and 10% or more. is more preferred.
• the fiber laminated structure has an elongation rate of 5% or more according to JIS L 1096B method (2010 edition). The higher the stretchability, the better, but the water resistance of the laminated fiber structure is lowered, so the stretchability is preferably 50% or less.
• side-by-side latently crimped yarns in which two or more kinds of polyesters or nylons with different shrinkage properties are combined for warp yarns and/or weft yarns.
• a latent crimped yarn or a single type of synthetic fiber such as polyester fiber or nylon fiber can be subjected to yarn processing such as false twisting or air processing and used as textured yarn.
• yarn processing such as false twisting or air processing and used as textured yarn.
• it is preferable to use a false twisted yarn because it is excellent in moderate stretchability. Fabrics using these yarns are referred to as stretchable fabrics in the present invention.
• polyester fibers such as ordinary polyethylene terephthalate and polytrimethylene terephthalate
• synthetic fibers such as polyamide fibers such as nylon 6 and nylon 66
• semi-synthetic fibers such as acetate fibers, cotton, hemp and wool.
• natural fibers can be used alone or in combination of two or more.
• long fibers of synthetic fibers such as polyester fibers and nylon fibers, which have high durability against water-repellent finishing and can be easily treated with water-repellent finishing, are preferred.
• the cross-sectional shape of the fiber is not particularly limited, and a wide range of shapes such as round, triangular, and hollow can be used.
• the thread may contain an additive for imparting antistatic properties or a delustering agent such as titanium oxide.
• the total fineness of the threads used in the woven fabric is 65 dtex or less. This is to reduce the thickness of the woven fabric and increase the moisture permeability. If the thickness is too thin, the tear strength will decrease, so the thickness is preferably 11 dtex or more.
• the form of the woven fabric is not particularly limited, and plain, twill, satin and lip weaves, double weaves, oxford, tussah and other woven fabrics are preferred.
• the woven fabric preferably has a cover factor of 2100 or less, more preferably 2000 or less, and more preferably 1900 or less.
• the cover factor the higher the moisture permeability according to JIS L 1099 (B-1 method), so from the viewpoint of moisture permeability, the smaller the cover factor, the better.
• the woven fabric since the woven fabric usually serves as the outer fabric, it also has a role to protect the nonwoven web. In addition, it is preferably 1400 or more in consideration of the aesthetics of the outer material.
• ⁇ CF ⁇ (D1) 1/2 ⁇ M ⁇ + ⁇ (D2) 1/2 ⁇ N ⁇
• D1 warp yarn fineness (dtex)
• M warp thread density (book/2.54 cm)
• D2 fineness of weft yarn (dtex)
• N Weft thread density (thread/2.54 cm).
• the fiber laminated structure of the present invention including the woven fabric and the nonwoven web described later, has water repellency.
• the water repellency is preferably grade 2 or higher, more preferably grade 3 or higher, in the JIS L 1092 water repellency test (spray method).
• the water repellency is preferably obtained by applying a water repellent finish. This is because a high degree of water resistance can be obtained by applying a water-repellent finish.
• processing may be applied as necessary, such as antistatic processing, antibacterial processing, ultraviolet absorption processing, and near-infrared absorption processing.
• the nonwoven web of the present invention consists of fibers made of a polyurethane polymer with a fiber diameter of less than 1 ⁇ m.
• a fiber with a fiber diameter of less than 1 ⁇ m means that the diameter of a single fiber is less than 1 ⁇ m. If the diameter of the single fiber is 1 ⁇ m or more, the gaps between the fibers become large and the water resistance is lowered, and the texture becomes rough and hard. More preferably, it is 700 nm or less. However, if the diameter is less than 5 nm, it is difficult to control during spinning, and the manufacturing cost tends to increase, so the diameter is preferably 5 nm or more.
• the fiber diameter of all the fibers constituting the nonwoven fabric web is within the above range, fibers having a fiber diameter outside the above range may be included as long as the effects of the present invention are not impaired.
• the value measured by the method described in Examples is used.
• the ultrafine fibers with a diameter of less than 1 ⁇ m are obtained by an electrospinning method, a flash spinning method, a composite spinning method, or the like, and a nonwoven web is obtained by aligning the obtained fibers into a sheet.
• the electrospinning method can be preferably used because the ultrafine fibers can be easily controlled and the nonwoven fabric web can be easily obtained.
• polyurethane is used in the present invention, but a nonwoven web using ultrafine fibers can be obtained by a solution method using dimethylformamide as a solvent, for example.
• the thickness of the nonwoven web is 20-60 ⁇ m. It is preferably 20 to 40 ⁇ m. If it is thinner than 20 ⁇ m, the water resistance will be low, and if it is thicker than 60 ⁇ m, the moisture permeability and air permeability will be low. Even when the nonwoven web is a composite laminate web, the thickness is within the above range.
• the bulk height of the nonwoven web is 1.5 to 2.5 cm 3 /g.
• the nonwoven web of the present invention is preferably a composite laminated web having three or more layers. 3 to 6 layers are preferable, and 4 to 5 layers are more preferable.
• the pinhole sites are dispersed and the laminated nonwoven fabric webs complement each other, so defects due to pinholes are reduced, and a decrease in water resistance can be suppressed.
• the water resistance of the fiber laminated structure of the present invention is preferably 80 kPa or more according to JIS L 1092-1998 hydrostatic pressure method. 90 kPa is more preferable, and 100 kPa is even more preferable. By setting the pressure to 80 kPa or more, the waterproof/moisture permeation performance is improved.
• the nonwoven fabric web made of the ultrafine fibers and the woven fabric are laminated and bonded with the adhesive A interposed therebetween. At this time, it is preferable that the nonwoven fabric web is impregnated with the adhesive A by 10% or more in the thickness direction.
• the peel strength between the nonwoven web and fabric can be easily increased to 120 cN/cm or more.
• the tensile strength in the vertical and horizontal directions of the laminated structure depends on the tensile strength of the woven fabric, which is practically preferable.
• a non-woven web using polyurethane fibers has a high stretch ratio in both the vertical and horizontal directions, so it can follow the elongation of various fabrics, and the tensile strength after bonding is favorable when used as clothes.
• the impregnation of the adhesive A in the thickness direction of the nonwoven web is preferably 90% or less.
• the adhesive A is less likely to bleed through and is less likely to come out from the nonwoven fabric web surface, that is, is less likely to be exposed on the back surface of the fiber laminated structure, has a good appearance, and does not come into contact with the inner garment or the skin. be smooth.
• the impregnation rate is more preferably in the range of 40-90%, more preferably in the range of 50-90%. Within this range, stable peel strength and good apparent quality can be obtained.
• the thickness of the nonwoven web and the degree of impregnation of the adhesive in the thickness direction are measured from photographs taken using a scanning electron microscope. Specifically, the fiber laminated structure is cut in the thickness direction in each of the vertical, horizontal, and bias directions at arbitrary locations, and photographed so that the entire thickness direction of the nonwoven fabric web is included. After that, the thickness of the non-woven fabric web and the thickness of the adhesive impregnated are measured at five points in each cross-sectional photograph in the vertical, horizontal, and bias directions. The addition average value of the measurement results at a total of 15 points is defined as the thickness of the nonwoven fabric web and the thickness of the adhesive impregnated, respectively.
• the peel strength between the nonwoven fabric web and the fabric can be increased to 120 cN/cm or more. From the standpoint of durability, the higher the peel strength, the better. However, since methods for improving the peel strength generally lead to hardening of the texture, the peel strength is preferably 800 cN/cm or less.
• the adhesive A interposed between the woven fabric and the nonwoven web is preferably in the form of dots having an area of 0.1 to 100.0 mm 2 in the plane direction.
• it may be linear in the surface direction, and preferably linear or grid-shaped with a thickness of 0.1 to 10.0 mm. Similar to the above, the range is more preferably 1.0 to 10.0 mm, most preferably 1.0 to 5.0 mm.
• the "plane direction" means the plane direction of the fiber laminate structure. Therefore, the area and thickness of the adhesive A here means the area and thickness of the adhesive A projected onto the horizontal plane when the fiber laminate structure is arranged in the horizontal direction, for example.
• the adhesive A is present at a rate of 70% or less in the adhesive application area on the nonwoven web surface.
• the adhesive application area referred to in the present invention refers to the area ratio to which the adhesive is applied, and may be hereinafter simply referred to as "area ratio”.
• Adhesive A is provided at a ratio of 70% or less in terms of area ratio to the area of the fabric to which the adhesive is applied in the plane direction, so as to increase the accuracy of control of the peel strength and improve the moisture permeability of the fiber laminated structure. It is preferable for stabilizing air permeability and water resistance at a high level. It is more preferably 10 to 70%, even more preferably 30 to 70%.
• the adhesive A is applied in a dotted form with an area of 0.1 to 100.0 mm 2 , or in a line or lattice form with a thickness of 0.1 to 10.0 mm. , is preferably applied at an area ratio of 10 to 70%.
• the point shape may be any shape such as circle, square, rhombus, oval, triangle, etc., and may be arranged by combining them into patterns or characters, or arranged in the shape of a trademark logo mark. Also, they may be arranged to form a continuous pattern, or they may be arranged randomly. Moreover, the linear shape may be a straight line or a curved line. The area ratio is the coverage with the adhesive.
• the adhesive A When the adhesive A is applied in dots, if the application area of each point of the adhesive A is 0.1 mm 2 or more, the adhesiveness will improve, and if it is 100.0 mm 2 or less, the restraint points of the fabric will become small, so the flexibility of the texture will be improved. It tends to be maintained and the moisture permeability tends to be high.
• the thickness of the linear and lattice shapes is 0.1 mm or more, the adhesiveness is high, and when the thickness is 10.0 mm or less, the constraint points of the fabric become small, so that the softness of the texture tends to be maintained.
• the coverage area ratio of the adhesive A is 10% or more, the adhesiveness is high, and when it is 70% or less, the restraint points of the fabric are reduced and the softness of the texture tends to be maintained.
• the nonwoven fabric web when the nonwoven fabric web has a structure in which the support posts of the adhesive are partially inserted, the nonwoven fabric web has a structure in which the nonwoven fabric web is not easily crushed even when a pressure load is applied to the nonwoven fabric web.
• a non-woven fabric web that does not use an adhesive and does not contain struts loses voids when a pressing load is applied, and is not restored due to being compressed, resulting in a so-called collapsed state, which tends to reduce moisture permeability and air permeability. be.
• the adhesive A is preferably a hot-melt type adhesive that does not use an organic solvent.
• resins with hot-melt adhesiveness include polyurethane, polyester, polyether, and polyamide. preferable. Solvent-based adhesives can also be suitably used.
• a nonwoven fabric web made of fibers having a diameter of less than 1 ⁇ m is laminated on at least one side of the fabric with an adhesive A interposed therebetween, and the fabric bonding surface of the nonwoven fabric web is laminated as described above.
• a fiber laminate structure in which a lining is laminated on the opposite side can also be exemplified. That is, a nonwoven fabric web made of fibers with a diameter of less than 1 ⁇ m is laminated on at least one side of the fabric via an adhesive A, and a fiber lamination It is preferred to have an exposed backing on the back of the structure and have an adhesive B between the nonwoven web and the backing.
• the adhesive B is dot-shaped with an area of 0.1 to 100.0 mm 2 with respect to the surface direction, or linear with a thickness of 0.1-10.0 mm (preferably 1.0-10.0 mm) or It is preferable that the fiber laminated structure is provided in a lattice shape, provided at a ratio of 10 to 70% in area ratio to the lining, and impregnated with 10% or more in the thickness direction of the nonwoven fabric web. .
• the following effects can be obtained in addition to the effects of the basic configuration described above. That is, since the fiber layer of the nonwoven web is fixed by both the adhesive impregnated from the front surface (that is, the fabric side) and the adhesive impregnated from the back surface, peeling is further prevented in the nonwoven web layer, and the peeling strength is improved. It is easier to achieve 120 cN/cm or more, and crushing due to compression is less likely to occur.
• the adhesive B is applied in a dot shape with an area of 0.1 to 100.0 mm 2 , or in a line or grid shape with a thickness of 0.1 to 10.0 mm (preferably 1.0 to 10.0 mm), By coating 10 to 70% by area ratio, it is possible to improve the accuracy of control of peel strength, and to stabilize the moisture permeability, air permeability and water resistance of the fiber laminated structure at a high level. .
• the area ratio of the adhesive A on the front surface and the area ratio of the adhesive B on the back surface is 10 to 70%, respectively, in order to maintain high moisture permeability and air permeability.
• the impregnation rate of the adhesives A and B is 100%, it may be difficult to improve the moisture permeability and air permeability simply by keeping the area ratio of the two between 10 and 70%. That is, when the impregnation rate is 100%, the adhesive B from the backing surface is exposed to the front surface, so the area ratio is (area ratio of adhesive A) + (area ratio of adhesive B) - (adhesive A and adhesive B), and the area ratio of adhesives A and B may eventually exceed 70%.
• both the area ratio of the adhesive A and the area ratio of the adhesive B are 10 to 10%. It is preferable to maintain high moisture permeability and air permeability by keeping the moisture permeability at 70%.
• the lining preferably has stretchability in at least one of the vertical and horizontal directions, or in both directions.
• the elongation rate according to JIS L 1096B method (2010 version) is preferably 3% or more, more preferably 5% or more, and 10% or more. is more preferred.
• chemical fibers such as polyester, nylon, acrylic, acetate, rayon, and polylactic acid, natural fibers such as cotton, hemp, silk, and wool, and fabrics made from these mixed fibers or blended spinning are preferably used. It may be in any form such as woven fabric, knitted fabric, non-woven fabric, etc., and mixed woven fabrics, mixed knitted fabrics, etc. of the above fibers are preferably used.
• the fabric used for the lining may be subjected to processing such as water-repellent processing, antistatic processing, antibacterial processing, ultraviolet absorbing processing, and near-infrared absorbing processing, as required.
• a sealing tape When a sealing tape is used to maintain the waterproofness of the seams, the fabric, nonwoven web, lining, and sealing tape are laminated in this order, and the sealing tape is adhered to the lining with a molten resin. It is preferable to use a loose woven or knitted fabric for the backing so that it can easily reach through the backing to the nonwoven web.
• Tricot is preferable from the viewpoint of being thin and rough, nylon tricot is preferable because there is no problem of migration and sublimation of disperse dyes, and tricot using nylon 66, which has a high melting point, is most preferable because it melts and adheres the molten resin of the sealing tape.
• the adhesive B a hot-melt type adhesive that does not use an organic solvent is preferable, like the adhesive A described above.
• resins with hot-melt adhesiveness include polyurethane, polyester, polyether, and polyamide. preferable. Solvent-based adhesives can also be suitably used.
• the same one as the adhesive A may be selected, or a different one may be selected.
• a nonwoven fabric web made of fibers having a diameter of less than 1 ⁇ m is laminated on at least one side of the fabric with an adhesive A interposed therebetween, and the side of the nonwoven fabric web opposite to the fabric bonding side is laminated.
• a fiber laminate structure in which a resin layer is provided on the surface of is also exemplified.
• a nonwoven web made of fibers with a diameter of less than 1 ⁇ m is laminated on at least one side of the fabric via an adhesive A, and on the side of the nonwoven web opposite to the side in contact with the fabric,
• the back surface of the fiber laminate structure has a resin layer exposed at a height of, for example, about 3 to 30 ⁇ m, and the resin layer has a dotted shape with an area of 0.1 to 100.0 mm 2 in the plane direction, or zero .1 to 10.0 mm (preferably 1.0 to 10.0 mm) in the form of lines or lattices, and present in an area ratio of 10 to 70% with respect to the nonwoven web,
• the following effects can be obtained in addition to the effects of the basic configuration described above. That is, since the back side (resin layer side) is in a point-like contact, a dry and smooth contact feeling can be obtained, and the non-woven fabric web is less likely to be scratched, which leads to an improvement in waterproof durability.
• the adhesive A and the resin constituting the resin layer are impregnated in the thickness direction of the nonwoven fabric web, a peel strength of 120 cN/cm or more can be achieved more easily. Also in this aspect, keeping both the area ratio of the adhesive A from the fabric surface and the area ratio of the resin layer from the other surface to 10 to 70% maintains high moisture permeability and breathability. preferred for
• urethane-based, epoxy-based, melamine-based, nylon-based, and the like similar to the adhesive A described above can be exemplified, and both one-component and two-component types can be exemplified.
• polyurethane-based resins are preferable because they are easy to process, and hot-melt type resins that do not use organic solvents can also be suitably used.
• Pigments are added to the resin that makes up the resin layer for coloring, aluminum powder is added to improve heat retention by reflecting body temperature radiation, and far-infrared radiating ceramics such as zirconia are added. It is also possible to impart a heat retaining effect by far-infrared radiation. In addition, by adding such fine particles, it is possible to make the product slippery and dry. Furthermore, the wear resistance of the resin layer is also improved.
• the particle size of the fine particles is preferably 5 to 200 ⁇ m. If the fine particles are 5 ⁇ m or more, they become larger than the interstices between the fibers of the fiber web, so that the fine particles do not enter the interior of the nonwoven web and are present only in the resin layer provided on the surface of the nonwoven web. Therefore, it is possible to improve only slipperiness and dry feeling without affecting peeling strength. However, if the fine particles are larger than 200 ⁇ m, the touch becomes rough and the possibility of falling off due to washing or rubbing increases.
• the composition of the fine particles is not particularly limited regardless of whether it is inorganic or organic.
• the shape of the fine particles is not particularly limited, but from the viewpoint of reducing the coefficient of friction, fine particles preferably have no sharp protrusions, and are more preferably spherical.
• the particle size referred to here is the particle size of the part exposed on the surface of the non-woven fabric web. It is a value obtained by measuring the diameter.
• a nonwoven fabric web made of fibers having a diameter of less than 1 ⁇ m is laminated on at least one side of the fabric with an adhesive A interposed therebetween, and the side of the nonwoven fabric web opposite to the fabric adhesion side is laminated.
• a fiber laminated structure having an imperforate membrane resin layer provided thereon can also be exemplified. That is, at least one surface of the woven fabric is laminated with a nonwoven fabric web made of fibers having a diameter of less than 1 ⁇ m via an adhesive A, and the surface of the nonwoven web opposite to the surface in contact with the woven fabric is non-porous.
• a fiber laminate structure in which a membrane resin layer is laminated over the entire surface can be exemplified.
• a laminated structure obtained by top-coating or top-laminating a non-woven web on the side opposite the textile can further improve the waterproofness and the durability is high.
• the nonporous resin layer may be urethane-based, epoxy-based, melamine-based, or nylon-based, and may be one-component or two-component. Various known resins may be used, but are easy to process. Polyurethane-based materials are preferred.
• the thickness of the fiber laminated structure of the present invention is preferably 0.30 mm or less, more preferably 0.25 mm or less.
• the thickness is 0.30 mm or less, both water resistance and moisture permeability can be achieved.
• the lower limit is not particularly limited, it is preferably 0.10 mm or more from the viewpoint of practical strength.
• a value measured according to JIS L 1096 8.4 (2010) is used as the thickness.
• the nonwoven fabric web has a bulk height of 1.5 to 2.5 cm 3 /g, and a moisture permeability of 8000 g/m 2 ⁇ 24 hr or more according to JIS L 1099-1998A-1 method. It is possible to easily obtain a fiber laminated structure having a moisture permeability of 30000 g/m 2 ⁇ 24 hr or more according to the L 1099-1998B-1 method and a water resistance of 80.0 kPa or more according to the JIS L 1092-1998 hydrostatic pressure method. can.
• Moisture permeability of 8000 g/m 2 ⁇ 24 hr or more according to the A-1 method can eliminate stuffiness when worn. Such moisture permeability is more preferably 9000 g/m 2 ⁇ 24 hr or more, and still more preferably 10000 g/m 2 ⁇ 24 hr or more. The higher the moisture permeability according to the A-1 method is, the less stuffy it feels, which is preferable.
• the moisture permeability is 30000 g/m 2 ⁇ 24 hr or more according to the B-1 method, dew condensation is unlikely to occur, and especially when worn in a low environmental temperature, the deterioration of the heat retention of the clothes due to dew condensation can be suitably prevented. More preferably, it is 60,000 g/m 2 ⁇ 24 hr or more. The higher the moisture permeability according to the B-1 method is, the less dew condensation will occur, which is preferable.
• the waterproofness by the hydrostatic method is 80.0 kPa or more, the waterproofness is high and it is difficult for water to enter the clothes when it rains. More preferably, it is 100.0 kPa or more. It is preferably 500.0 kPa or less from the viewpoint of cost and that if the water resistance is increased, the texture will harden.
• the air permeability in JIS L 1096-1999 air permeability A method is 0.1 cm 3 /cm 2 ⁇ s or more. , 0.3 cm 3 /cm 2 ⁇ s or more.
• the garment has improved moisture releasing properties and heat releasing properties and is excellent in wear comfort.
• the nonwoven fabric web is impregnated with adhesive or resin in the form of dots or lines, except for those top-coated or top-laminated (that is, the non-porous resin layer is provided over the entire surface).
• a fiber laminate structure in which an imperforate membrane resin layer is entirely formed on a nonwoven fabric web has no air permeability, but has high water resistance. Whether or not to laminate the nonporous membrane resin layer on the top may be selected depending on the application and desired performance. The relationship between the moisture permeability and the water resistance and the air permeability are greatly affected by the bulkiness of the nonwoven web.
• a nonwoven web made of fibers of less than 1 ⁇ m is formed on release paper by an electrospinning method.
• a solution method or a melt method may be selected depending on the polymer used for production.
• the release paper is preferably paper or film coated with a silicone resin, but is not particularly limited.
• the used solvent may remain on the release paper, so it is preferable to use a material resistant to the solvent.
• the nonwoven web is aged in a room at 30 to 50° C. for about 24 to 72 hours.
• the release paper is then preferably peeled off and only the nonwoven web is subjected to the next winding step. It is not necessary to peel off the release liner from the nonwoven web at this point, but if the nonwoven web is left on the release liner and stored for a long time, the release liner becomes difficult to peel off, causing pinholes when peeled off, and increasing the thickness of the release liner. more likely to develop bruises.
• the nonwoven web preferably has a bulkiness of 1.5-2.5 cm 3 /g and a thickness of 20-60 ⁇ m.
• the adhesive A described above is applied onto the fabric or onto the nonwoven web.
• the woven fabric preferably has stretchability at least in either the warp direction or the weft direction.
• the adhesive A is preferably a hot-melt resin or a solvent-based adhesive.
• a knife coater, a bar coater, a gravure coater, or the like can be used as a method for applying the adhesive.
• the gravure coating method using a gravure coater can relatively easily apply the adhesive in a dotted, linear, or grid pattern.
• moisture permeability and air permeability it is not limited to these.
• the adhesion method may be selected according to the desired characteristics, such as a wet lamination method and a dry lamination method.
• the dry lamination method is to apply the adhesive A onto the fabric in order to improve the quality of the nonwoven fabric web. It is preferable to
• the nonwoven fabric web it is preferable to impregnate the nonwoven fabric web with the adhesive A in an amount of 10% or more in the thickness direction.
• pressure is applied to the fiber laminate structure to force the adhesive.
• a woven fabric and a non-woven web with an adhesive interposed between a metal roll and a rubber roll at a temperature of 110 to 120° C. are passed, and a linear pressure of 29.
• a load of about 4 to 78.5 N/cm is applied for crimping. If the linear pressure or temperature is low, the impregnation rate of the nonwoven web will be low, and if the linear pressure or temperature is high, the adhesive will back through or the nonwoven web will be crushed.
• the water repellent treatment referred to in the present invention is not particularly limited as long as it improves the water repellency before and after the treatment, but is preferably a treatment in which a water repellent agent is adhered or impregnated.
• a pad dry method of immersing in a bath containing a water repellent and drying is preferred.
• nonwoven webs differ from uniform nonporous coatings, those using hydrophilic fiber-forming materials have poor water resistance. Particularly high water resistance is obtained when the surface of each nanofiber in the nonwoven web is rendered hydrophobic.
• Water-repellent finishing is suitable for increasing water resistance.
• Known water repellents such as fluorine-based agents and silicone-based agents can be used.
• the adhesive B is applied to the nonwoven fabric web surface of the two-layer fiber laminated structure obtained in this way in the same manner as the adhesive A was applied, and the lining is further laminated and pressure-bonded.
• the above-described three-layered fiber laminate structure with the backing adhered thereto is obtained.
• the resin was applied in the form of dots or lines so as to rise from the surface of the nonwoven fabric web.
• the above-described fiber laminated structure having a point-like or linear resin layer exposed on the back side can be obtained.
• a knife coater, bar coater, gravure coater, or the like can be used to laminate the adhesive or resin in the form of dots, lines, or a lattice.
• a non-porous resin is coated or laminated over the entire surface of the nonwoven fabric web surface on the opposite side of the fabric of the two-layer fiber laminate structure obtained as described above.
• a laminated structure having the nonporous resin layer with high water resistance is obtained.
• laminating either dry lamination method or wet lamination method can be used.
• Peel Strength Measured as follows with reference to JIS L 1066-2004 peel strength.
• the following sealing tape was adhered to the surface of the non-woven fabric web, and the sealing tape and the fiber structure were grasped, and the others were measured according to the peel strength measuring method of JIS L 1066-2004.
• Sealing tape Sun Melco BW-2 (2.5 cm wide) manufactured by Sun Kasei Kogyo Co., Ltd.
• Adhesion conditions Dry iron at 120°C for 15 seconds (with pressing cloth).
• the thickness of the nonwoven web and the degree of impregnation of the adhesive in the thickness direction were measured from photographs taken using a scanning electron microscope (S-3400N, manufactured by Hitachi High-Technologies Corporation). Specifically, the fiber laminate structure was cut in the thickness direction at any position in each of the vertical, horizontal, and bias directions, and photographed so that the entire thickness direction of the nonwoven fabric web was included. After that, the thickness of the fiber web and the thickness of the adhesive impregnated were measured at five points in each cross-sectional photograph in the vertical, horizontal, and bias directions.
• Impregnation rate (%) ⁇ adhesive impregnation thickness ( ⁇ m)/web thickness ( ⁇ m) ⁇ ⁇ 100.
• Washing machine 2-layer type (using Toshiba VH-M30 (HS) Ginga 3.0)
• Detergent Weakly alkaline synthetic detergent
• Detergent concentration 1g/L
• Washing temperature 40°C Bath ratio: 1:30
• Washing time 5 minutes
• Rinsing Normal temperature water overflow x 2 minutes x 2 times
• Water flow Standard conditions Process: Washing - dehydration - rinsing - dehydration - rinsing - dehydration.
• Example 1 A 56 dtex-24 filament nylon 6 round section yarn was subjected to a false twisting process so as to have stretchability. Subsequently, the processed yarn was used for the warp yarn and the weft yarn, and the warp yarn was subjected to sizing treatment and woven in a water jet loom so as to have a density of 116 ⁇ 84 yarns/2.54 cm. After scouring, the fabric was heat-set at 170°C for 40 seconds by presetting so that the density was 141 x 98 lines/2.54 cm and the cover factor was 1789, dyed, dried and finish-set at 160°C. This was used as a woven fabric.
• a non-woven fabric web made of polyurethane fibers with a single fiber diameter of 300 to 400 nm was laminated in five layers by an electrospinning method (solution method, solvent dimethylformamide) on a release paper made by coating a polypropylene film with a basis weight of 35 g/m 2 with silicone.
• a composite laminated web (thickness: 30 ⁇ m, basis weight: 15.0 g/m 2 , bulk height: 2.0 cm 3 /g) was prepared and aged in a room at 40° C. for 48 hours. I wound it up without putting it on.
• the adhesive A a moisture-curing hot-melt type polyurethane resin was used.
• the adhesive was heated and melted at 110 ° C., and a 0.40 mm ⁇ 0.40 mm square (20 ⁇ m deep) was engraved on the fabric at an angle of 45 ° with respect to the traveling direction and with 40 mesh. It was applied with a gravure coater equipped with a roll and dried at 120° C. for 1 minute. As a result, the adhesive was applied to the fabric in dots, each dot being a square with a side of 0.40 mm and arranged at an angle of 45° with respect to the length direction.
• the area ratio (coverage) of the adhesive A to the fabric was 40%.
• the nonwoven fabric webs obtained above were stacked, and after applying a linear pressure of 49 N/cm between a metal roll and a rubber roll at a temperature of 110°C, aging was performed at room temperature for 48 hours. After that, a 5% aqueous solution of Asahiguard AG710 (fluorine-based water repellent, manufactured by Asahi Glass Co., Ltd.) was applied by a pad, dry, and cure method so that the adhesion rate was 60%. C. for 40 seconds to obtain a fiber laminate structure.
• Asahiguard AG710 fluorine-based water repellent, manufactured by Asahi Glass Co., Ltd.
• the resulting fiber laminate structure was impregnated with adhesive A to a thickness of 14.0 ⁇ m (impregnation rate: 70%) in the thickness direction of the non-woven fabric web, had an elongation rate of 15%, and had an A-1 moisture permeability of 12000 g/m 2 . 24 hours, B-1 method moisture permeability 40,000 g/m 2 ⁇ 24 hours, water resistance 160 kPa, and excellent moisture permeability and waterproof performance.
• the peel strength was 160 cN/cm in the vertical direction and 220 cN/cm in the horizontal direction. The measured values obtained are shown in Tables 1 and 2.
• Example 2 A composite laminated web having a thickness of 20 ⁇ m, a basis weight of 8.0 g/m 2 , and a bulk height of 2.5 cm 3 /g is obtained by laminating three layers of non-woven fabric webs on the fabric obtained in Example 1 in the same manner as in Example 1. was subjected to adhesion and water-repellent treatment in the same manner as in Example 1 to obtain a fiber laminate structure.
• the area ratio (coverage) of the adhesive A to the fabric was 40%.
• the obtained fiber laminated structure was impregnated with adhesive A in a thickness direction of 10.5 ⁇ m (impregnation rate 70%) of the nonwoven fabric web, and was subjected to A-1 method moisture permeability of 11000 g / m 2 ⁇ 24 hours, B- It had excellent moisture permeability and waterproof performance, with a moisture permeability of 38,000 g/m 2 ⁇ 24 hours under the 1st method and a water resistance of 120 kPa.
• the peel strength was 160 cN/cm in the vertical direction and 210 cN/cm in the horizontal direction.
• the measured values obtained are shown in Tables 1 and 2.
• Example 3 The adhesive used in Example 1 was applied as adhesive B to the nonwoven fabric web surface of the fiber laminate structure obtained in Example 1 using the same gravure coater as in Example 1, and the adhesive was applied at 120°C for 1 minute. Dried. As a result, Adhesive B was applied to the nonwoven web in dots, each dot being a square with a side of 0.40 mm and arranged at an angle of 45° to the length direction. The area ratio (coverage) of the adhesive B to the nonwoven web was 40%.
• a single tricot using 33 dtex-24 filament nylon 6.6 semi-dull yarn with a round cross section was dyed and finished with 29 wells/2.54 cm and 46 courses/2.54 cm.
• the sinker loop surface of the tricot was placed on the nonwoven fabric web surface coated with the above adhesive, and a linear pressure of 49 N/cm was applied between a metal roll and a rubber roll at a temperature of 110 ° C. in the same manner as in Example 1, and then 48 hours. Aging was performed at room temperature.
• the adhesive B was impregnated from the backing surface to 10.0 ⁇ m (impregnation rate 67%) in the thickness direction of the nonwoven web, and the A-1 method moisture permeability was 13000 g / m. 2.24 hours, B-1 method moisture permeability 41000 g/m 2.24 hours, water resistance 130 kPa, and excellent moisture permeability and waterproof performance.
• the peel strength was 230 cN/cm in the vertical direction and 220 cN/cm in the horizontal direction, and even after washing 5 times, the lining material did not peel and maintained good appearance quality.
• the measured values obtained are shown in Tables 1 and 2.
• Example 4 The nonwoven fabric web surface of the fiber laminate structure before water repellent treatment in Example 1 was coated with the following coating liquid by a roll-on knife method at a clearance of 0.05 mm and an application amount of 30 g/m 2 , and at 130°C for 3 minutes. After drying, it was cured at 165° C. for 2 minutes to laminate a nonporous membrane resin layer. After that, in the same manner as in Example 1, a 5% aqueous solution of Asahiguard AG710 (fluorine-based water repellent, manufactured by Asahi Glass Co., Ltd.) was applied so that the adhesion rate was 60%, and dried at 120 ° C. for 1 minute. C. for 40 seconds and then aged at room temperature for 48 hours.
• Asahiguard AG710 fluorine-based water repellent, manufactured by Asahi Glass Co., Ltd.
• the nonporous membrane resin layer was adhered to the nonwoven fabric web in a thickness direction of 3.0 ⁇ m (adhesion rate 20%), and the A-1 method moisture permeability was 8000 g/m 2 ⁇ 24 hours. B-1 method moisture permeability 30000g/m 2 ⁇ 24 hours, water resistance 200kPa, and excellent moisture permeability and waterproof performance.
• the peel strength measured by adhering a sealant tape to the nonporous membrane resin layer was 230 cN/cm in the vertical direction and 200 cN/cm in the horizontal direction, and the appearance was good with no partial peeling occurring even after washing five times. maintained its quality.
• the measured values obtained are shown in Tables 1 and 2.
• (Coating liquid) (a) Hydrogenated methylene diisocyanate as a polyisocyanate component, polytetramethylene glycol having a number average molecular weight of 2000 as a glycol component, and 2,2-bishydroxymethylbutanoic acid as an internal emulsifier. 42.1 wt% of emulsified polyurethane, hydrogenated methylene diisocyanate as (b) polyisocyanate component, polyethylene glycol having a number average molecular weight of 1000 as glycol component, and 2,2-bishydroxymethylpropionic acid as internal emulsifier.
• Example 5 A fiber laminate structure was obtained and evaluated in the same manner as in Example 1, except that the following points were changed. That is, false twisting was applied to side-by-side type composite yarns of polyester having 56 dtex-48 filaments with different intrinsic viscosities. Subsequently, the processed yarn was used for the warp yarn and the weft yarn, and the warp yarn was subjected to sizing treatment and woven in a water jet loom so as to have a density of 118 ⁇ 90 yarns/2.54 cm. After scouring, the fabric was heat-set at 170°C for 40 seconds by presetting so that the density was 139 x 140 lines/2.54 cm and the cover factor was 2087, dyed, dried and finish-set at 160°C. A fiber laminate structure was obtained in the same manner as in Example 1, except that this was used as a woven fabric. The area ratio (coverage) of the adhesive A to the fabric was 40%.
• the obtained fiber laminated structure was impregnated with adhesive A to a thickness of 14.0 ⁇ m (impregnation rate: 70%) in the thickness direction of the nonwoven fabric web, had an elongation rate of 25%, and had an A-1 method moisture permeability of 10,000 g/m 2 ⁇ . 24 hours, B-1 method moisture permeability 32000 g/m 2 ⁇ 24 hours, water resistance 150 kPa, and excellent moisture permeability and waterproof performance.
• the peel strength was 200 cN/cm in the vertical direction and 220 cN/cm in the horizontal direction. The measured values obtained are shown in Tables 1 and 2.
• Example 6 A composite laminated web having a thickness of 20 ⁇ m, a basis weight of 8.0 g/m 2 , and a bulk height of 2.5 cm 3 /g is obtained by laminating three layers of nonwoven webs on the woven fabric obtained in Example 5 in the same manner as in Example 1. was subjected to adhesion and water-repellent treatment in the same manner as in Example 1 to obtain a fiber laminate structure.
• the area ratio (coverage) of the adhesive A to the fabric was 40%.
• the obtained fiber laminated structure was impregnated with adhesive A in a thickness direction of 10.5 ⁇ m (impregnation rate 70%) of the non-woven fabric web, A-1 method moisture permeability 12000 g / m 2 ⁇ 24 hours, B- It had excellent moisture permeability and waterproof performance, with a moisture permeability of 38,000 g/m 2 ⁇ 24 hours under the 1st method and a water resistance of 120 kPa.
• the peel strength was 160 cN/cm in the vertical direction and 210 cN/cm in the horizontal direction.
• the measured values obtained are shown in Tables 1 and 2.
• Adhesive A uses 4,4′-methylenebis(cyclohexylisocyanate) as isocyanate, and a polyether polyurethane resin containing polyethylene glycol in the soft segment is mixed with methyl ethyl ketone, toluene, and isopropyl alcohol (1:1:0.5). 6 parts of a trimer of hexamethylene diisocyanate having a cyanuric skeleton was added as a cross-linking agent to the weight of the solution. This adhesive solution was applied with a gravure coater in the same shape as in Example 1, and a linear pressure of 19.6 N/cm was applied with a pressure bonding machine consisting only of rubber rolls. 7%) A fiber laminate structure was obtained in the same manner as in Example 1, except that it was impregnated. The area ratio (coverage) of the adhesive A to the fabric was 40%.
• the peeling strength of the obtained fiber laminated structure was 70 cN/cm in the vertical direction and 60 cN/cm in the horizontal direction.
• the measured values obtained are shown in Tables 1 and 2.
• Example 2 A fiber laminate structure was obtained and evaluated in the same manner as in Example 2 except that the following points were changed. That is, the same adhesive solution as in Comparative Example 1 was used as adhesive A, applied in the same shape as in Example 2 with a gravure coater, and a linear pressure of 19.6 N/cm was applied with a crimping machine consisting only of rubber rolls. A fiber laminate structure was obtained in the same manner as in Example 2, except that the nonwoven fabric web was impregnated with 1.0 ⁇ m (impregnation rate: 7%) in the thickness direction. The area ratio (coverage) of the adhesive A to the fabric was 40%.
• the peeling strength of the obtained fiber laminated structure was 70 cN/cm in the vertical direction and 60 cN/cm in the horizontal direction.
• the measured values obtained are shown in Tables 1 and 2.
• Example 3 A fiber laminate structure was obtained and evaluated in the same manner as in Example 1, except that the following points were changed. That is, the non-woven fabric web made of polyurethane fibers was made up of one layer, and the thickness was changed to 10 ⁇ m, the basis weight was changed to 3.0 g/m2, and the bulk height was changed to 3.3 cm 3 /g.
• the adhesive A the same adhesive solution as in Comparative Example 1 was used, applied in the same shape as in Example 1 with a gravure coater, and a linear pressure of 19.6 N/cm was applied with a crimping machine consisting only of rubber rolls.
• the peeling strength of the obtained fiber laminated structure was 40 cN/cm in the vertical direction and 30 cN/cm in the horizontal direction, and the texture was rough and hard and could not be used for clothing or clothing materials. In addition, partial peeling occurred in the nonwoven fabric web after 5 washes, and the appearance quality was poor.
• the measured values obtained are shown in Tables 1 and 2.
• Comparative Example 4 A fiber laminate structure was obtained and evaluated in the same manner as in Comparative Example 3 except that the following points were changed. That is, the nonwoven web was changed to the same nonwoven web as in Example 1.
• the adhesive A the same adhesive solution as in Comparative Example 1 was used, applied in the same shape as in Example 1 with a gravure coater, and a linear pressure of 19.6 N/cm was applied with a crimping machine consisting only of rubber rolls.
• Adhesive A was impregnated into the nonwoven web by 1.2 ⁇ m (impregnation rate 8%) in the thickness direction.
• a fiber laminate structure was obtained in the same manner as in Example 1 except for these points.
• the area ratio (coverage) of the adhesive A to the fabric was 40%.
• the peeling strength of the obtained fiber laminated structure was 85 cN/cm in the vertical direction and 60 cN/cm in the horizontal direction, and the water resistance was low. became.
• the measured values obtained are shown in Tables 1 and 2.
• Example 5 A fiber laminate structure was obtained and evaluated in the same manner as in Example 1, except that the following points were changed. That is, the same nonwoven fabric web as in Example 1 was adhered to the woven fabric obtained in Example 1 by the same method to obtain a fiber laminated structure without water-repellent finishing. The area ratio (coverage) of the adhesive A to the fabric was 40%. Moreover, the impregnation rate was 70%.
• the obtained fiber laminated structure had a low water repellency level of 1st grade and a low water resistance of 10 kPa, and no waterproof performance was obtained.
• the measured values obtained are shown in Tables 1 and 2.
• Example 7 A fiber laminate structure was obtained and evaluated in the same manner as in Example 1, except that the following points were changed. That is, 56dtex-40 filament nylon 6 round cross-section yarn is used for the warp and weft, and the warp is sized and woven in a water jet loom so that the density is 177 x 105 threads / 2.54 cm. bottom. After scouring, the fabric was heat-set at 170°C for 40 seconds by presetting so that the density was 186 x 10 6 strands/2.54 cm and the cover factor was 2110, dyed, dried and finish-set at 160°C. A fiber laminate structure was obtained in the same manner as in Example 1, except that this was used as a woven fabric. The area ratio (coverage) of the adhesive A to the fabric was 40%. Moreover, the impregnation rate was 70%.
• the obtained fiber laminate structure had an elongation rate of 3%, an A-1 method moisture permeability of 7,500 g/m 2.24 hours, and a B-1 method moisture permeability of 28,000 g/m 2.24 hours, indicating poor stretchability.
• the measured values obtained are shown in Tables 1 and 2.
• the fiber laminate structure of the present invention has high moisture permeability and waterproofness, and is excellent in durability.
• Clothing such as clothing, rainwear, casual wear, work clothes, gloves and shoes, clothing material fields such as glove inserts and boot inserts, and non-clothing fields such as building materials such as wallpaper and roof waterproof sheets.

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• 2022
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