CN118024679B - Cold-resistant fiber membrane waterproof and breathable fabric and its preparation process - Google Patents
Cold-resistant fiber membrane waterproof and breathable fabric and its preparation processInfo
- Publication number
- CN118024679B CN118024679B CN202410102871.8A CN202410102871A CN118024679B CN 118024679 B CN118024679 B CN 118024679B CN 202410102871 A CN202410102871 A CN 202410102871A CN 118024679 B CN118024679 B CN 118024679B
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- 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
- 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
- B32B5/22—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
- B32B5/262—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 fibrous or filamentary layer being a woven fabric layer
- B32B5/263—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 fibrous or filamentary layer being a woven fabric layer next to one or more woven fabric layers
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/10—Impermeable to liquids, e.g. waterproof; Liquid-repellent
- A41D31/102—Waterproof and breathable
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- 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
- 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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- 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
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
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- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
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- 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
-
- 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
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
- Manufacturing Of Multi-Layer Textile Fabrics (AREA)
Abstract
本发明涉及面料及其制备工艺领域，具体涉及一种耐寒纤维膜防水透湿面料及其制备工艺，耐寒纤维膜防水透湿面料从上往下依次包括上基布层、防水透湿层和下基布层，上基布层和下基布层施胶的一侧均进行拉毛处理，基布表面的绒毛能够显著提高其与防水透湿层的粘结强度，提高耐水性性能；防水透湿层中包含微孔纤维，提高胶层的透湿性，而绒毛嵌入防水透湿层中，提高基布和防水透湿层的结合面积，从而提高面料的透湿性；防水透湿层中夹杂微孔纤维，在保证透湿性的前提下，能够显著提高防水透湿层的强度，同时防水透湿层采用底胶和面胶分别与上下基布黏结后在进行复合，这种结构和工艺能够有效提高防水透气膜的强度。
The invention relates to the field of fabrics and preparation processes thereof, and particularly to a cold-resistant fiber membrane waterproof and breathable fabric and a preparation process thereof. The cold-resistant fiber membrane waterproof and breathable fabric comprises, from top to bottom, an upper base fabric layer, a waterproof and breathable layer and a lower base fabric layer. The glue-applied sides of the upper base fabric layer and the lower base fabric layer are both subjected to a napping treatment. The fluff on the surface of the base fabric can significantly improve the bonding strength between the upper base fabric layer and the waterproof and breathable layer, thereby improving the water resistance. The waterproof and breathable layer contains microporous fibers to improve the moisture permeability of the glue layer, and the fluff is embedded in the waterproof and breathable layer to increase the bonding area between the base fabric and the waterproof and breathable layer, thereby improving the moisture permeability of the fabric. The waterproof and breathable layer is mixed with microporous fibers, which can significantly improve the strength of the waterproof and breathable layer while ensuring moisture permeability. At the same time, the waterproof and breathable layer is bonded to the upper and lower base fabrics respectively using a base glue and a surface glue and then compounded. This structure and process can effectively improve the strength of the waterproof and breathable membrane.
Description
Technical Field
The invention relates to the field of fabrics and preparation processes thereof, in particular to a cold-resistant fiber membrane waterproof and moisture-permeable fabric and a preparation process thereof.
Background
The waterproof moisture-permeable principle of the microporous moisture-permeable fabric is that compact fine reticular micropores are distributed in the traditional waterproof moisture-permeable film material, the pore diameter is in submicron level, water drops are about 1000 times of the diameter of the waterproof moisture-permeable film material, and water molecules evaporated by a human body are thousands of times smaller than the micropores, so that the water drops cannot penetrate through the film material, and the water vapor molecules of the human body can penetrate out of the film micropores, thereby achieving the waterproof moisture-permeable function.
For outdoor clothing in winter, the requirements on waterproof moisture permeability are high while the thermal insulation performance is provided, if sweat cannot be timely discharged to the outside, the temperature loss of a human body is easy to occur, but the difficulty of developing a fabric with the thermal insulation performance, the waterproof performance and the moisture permeability is high, the waterproof moisture permeability fabric prepared by the traditional multilayer compounding process has the problems that 1, the waterproof moisture permeability film and the base cloth are compounded by hot melt adhesive, the coating amount of the hot melt adhesive is generally 9-11 g/m < 2 >, the hot melt adhesive does not have micropores, the coating of the hot melt adhesive can cause the moisture permeability of the fabric to be reduced no matter of continuous coating or point-shaped coating, in addition, the dead weight of the fabric is large in winter, the hot melt adhesive is easy to fall off under the effect of dead weight and after water washing, the fabric has local bubbles, the water resistance and the poor durability are poor, the quality requirements of clothing can not be met, and 2, the waterproof moisture permeability film and the base cloth are small in contact area, especially the hot melt adhesive is between the base cloth and the waterproof moisture permeability film can further influence the moisture permeability of the fabric, and the actual moisture permeability of the fabric is lower than the waterproof moisture permeability film.
Disclosure of Invention
An object of the present invention is to solve at least the above problems by a cold-resistant fibrous membrane waterproof moisture-permeable fabric and a process for preparing the same.
In order to solve the technical problems, the cold-resistant fiber membrane waterproof moisture-permeable fabric is characterized by sequentially comprising an upper base fabric layer, a waterproof moisture-permeable layer and a lower base fabric layer from top to bottom.
Preferably, the waterproof moisture-permeable layer comprises a surface adhesive and a primer which are adhered to each other, wherein the surface adhesive is adhered to the lower surface of the upper base cloth layer, and the primer is adhered to the upper surface of the lower base cloth layer.
Preferably, micropores are distributed on the surface adhesive and the base adhesive, the surface adhesive comprises sheath-core microporous fibers, and the base adhesive comprises special-shaped fibers.
Preferably, the sheath-core microporous fiber is of a sheath-core structure, the sheath-core microporous fiber comprises a core layer and a skin layer, the core layer is foam porous, the skin layer is embedded with water absorption capillaries, and 3-4 grooves are distributed on the cross section of the special-shaped fiber.
Preferably, the upper surface of the upper base cloth layer and the lower surface of the lower base cloth layer are distributed with fluff, and the fluff is embedded into the face glue and the base glue.
Preferably, the lower base cloth layer is of a double-layer structure, the lower base cloth layer comprises a close-fitting fabric layer and a water storage layer from bottom to top, the water storage layer is bonded with the waterproof moisture permeable layer, the close-fitting fabric layer is made of polypropylene fibers, grooves are distributed on the polypropylene fibers, and the water storage layer is made of cotton fibers.
Preferably, the fabric weave of the lower base fabric layer is a lower-connected upper double-layer weave, the basic weave of the surface layer and the inner layer is a three-upper-three-lower twill weave, the arrangement ratio of warp yarns and weft yarns of the surface layer to the inner layer is 1:1, the tying weave is a five-upper-five-lower twill weave, the number of warp and weft weave cycles is 12, and the fabric weave of the upper base fabric layer is a plain weave.
According to the preparation process of the cold-resistant fiber membrane waterproof and moisture-permeable fabric, the preparation process comprises the following steps:
Step a, preparing upper base cloth and lower base cloth, and preparing raw materials of face glue and base glue;
step b, performing water splashing prevention treatment on the surfaces of the upper base cloth and the lower base cloth;
step c, napping treatment is carried out on the top surface of the lower base cloth and the bottom surface of the upper base cloth, and napping is carried out on the surfaces of the upper base cloth and the lower base cloth;
Step d, preparing primer and face glue;
step e, coating primer on the upper surface of the lower base cloth, and coating surface primer on the lower surface of the upper base cloth;
And f, bonding the primer and the face glue, and carrying out hot-pressing compounding on the lower base cloth coated with the primer and the upper base cloth coated with the face glue to obtain the cold-resistant fiber membrane waterproof moisture-permeable fabric.
Preferably, in the step d, the polyurethane moisture-permeable resin, the special-shaped fiber and the dimethylformamide are uniformly mixed to prepare the primer, and the polyurethane moisture-permeable resin, the sheath-core microporous fiber and the dimethylformamide are uniformly mixed to prepare the face adhesive.
Preferably, in the step e, the primer is uniformly coated on the upper surface of the lower base cloth, the polyurethane moisture-permeable resin is solidified into a microporous base film mixed with special-shaped fibers while the dimethylformamide is dissolved and separated out in the aqueous solution through the impregnation of the aqueous solution, the microporous base film is put into an oven for pre-drying, the surface glue is uniformly coated on the lower surface of the upper base cloth, and the polyurethane moisture-permeable resin is solidified into a microporous mask mixed with sheath-core microporous fibers while the dimethylformamide is dissolved and separated out in the aqueous solution through the impregnation of the aqueous solution, and the microporous mask is put into the oven for pre-drying.
As can be seen from the description, the cold-resistant fiber membrane waterproof moisture-permeable fabric and the preparation process thereof have the advantages that napping treatment is carried out on one side of the upper base cloth layer and one side of the lower base cloth layer, which are glued, the bonding strength between the nap on the surface of the base cloth layer and the waterproof moisture-permeable layer can be remarkably improved, the problem that the bonding property of the base cloth layer is reduced due to water splashing prevention finishing is solved, the water-resistant property is improved, the waterproof moisture-permeable layer contains microporous fibers, the microporous fibers have good moisture permeability, the moisture permeability of a glue layer is improved, the nap is embedded into the waterproof moisture-permeable layer, the bonding area of the base cloth and the waterproof moisture-permeable layer is improved, so that the moisture permeability of the fabric is improved, the microporous fibers are mixed in the waterproof moisture-permeable layer, the strength of the waterproof moisture-permeable layer can be remarkably improved on the premise that the moisture permeability is ensured, meanwhile, the waterproof moisture-permeable layer adopts the base glue and the face glue are respectively bonded with the upper base cloth and the lower base cloth, the waterproof moisture-permeable layer can be effectively improved, the strength of the waterproof moisture-permeable layer is high in moisture-absorbing property, the waterproof moisture-permeable layer is provided with a certain water-storage bridge, the human body moisture is quickly absorbed to the moisture-permeable layer, the moisture-permeable layer is reduced after the load is uncomfortable, the moisture is taken as the base cloth layer and the moisture-permeable layer is well, and the moisture-permeable to the inside and has good moisture absorption performance and the moisture-permeable layer and the moisture absorption layer is well and the moisture-permeable layer and has good moisture absorption performance and the water and the permeability.
Drawings
Fig. 1 is a schematic structural diagram of the cold-resistant fibrous membrane waterproof moisture-permeable fabric of the invention.
Fig. 2 is a schematic structural view of a sheath-core microporous fiber.
Fig. 3 is a schematic structural view of a shaped fiber.
Fig. 4 is a weave pattern of the lower base fabric layer.
Detailed Description
The invention is further described below by means of specific embodiments.
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1, the cold-resistant fiber film waterproof moisture-permeable fabric of the invention comprises an upper base cloth layer 1, a waterproof moisture-permeable layer 2 and a lower base cloth layer 3 from top to bottom. The napping treatment is carried out on one side of the upper base cloth layer 1 and one side of the lower base cloth layer 3, which are glued, the binding strength between the napping on the surface of the base cloth and the waterproof moisture-permeable layer 2 can be obviously improved, the problem that the binding property of the base cloth is reduced due to water splashing prevention finishing is solved, the waterproof moisture-permeable layer 2 contains microporous fibers, the microporous fibers have good moisture permeability, the moisture permeability of a glue layer is improved, the napping is embedded into the waterproof moisture-permeable layer 2, and the binding area between the base cloth and the waterproof moisture-permeable layer 2 is improved, so that the moisture permeability of the fabric is improved.
The waterproof moisture-permeable layer 2 includes a face adhesive 21 and a base adhesive 22 bonded to each other, the face adhesive 21 being adhered to the lower surface of the upper base fabric layer 1, and the base adhesive 22 being adhered to the upper surface of the lower base fabric layer 3.
Micropores are distributed on the surface adhesive 21 and the bottom adhesive 22, the surface adhesive 21 comprises sheath-core microporous fibers 4, and the bottom adhesive 22 comprises special-shaped fibers 5.
As shown in fig. 2, the sheath-core microporous fiber 4 is of a sheath-core structure, the sheath-core microporous fiber 4 comprises a core layer 41 and a skin layer 42, the core layer 41 is foam porous, the skin layer 42 is embedded with water absorption capillaries, and as shown in fig. 3, 3-4 grooves are distributed on the cross section of the special-shaped fiber 5. The core layer 41 of the sheath-core microporous fiber 4 is 1-2 micrometers thick, a plurality of capillaries capable of absorbing water are embedded in the core layer 41, the core layer 41 is foam porous, the water absorption is equivalent to that of cotton fiber, wool and the like, but the volume change after water absorption is small, the expansion rate is low, so that the shape stability is good, and the pore diameter of micropores on the sheath-core microporous fiber 4 is small, so that the good moisture permeability is ensured, the waterproofness is not lost, and the sheath-core microporous fiber 4 is applied to the face adhesive 21, so that the waterproofness and the moisture permeability can be both achieved; the special-shaped fiber 5 is provided with a plurality of grooves, the width of the grooves of the special-shaped fiber 5 is much larger than the diameter of the micropores on the sheath-core microporous fiber 4, so that the special-shaped fiber is poor in waterproofness and good in hygroscopicity compared with the sheath-core microporous fiber 4, in conclusion, the primer 22 is provided with the special-shaped fiber 5, is high in hygroscopicity, has certain water storage capacity, rapidly absorbs moisture of a human body to be submitted for storage, reduces uncomfortable feeling of the human body after load labor, and is used as a bridge of the lower base cloth layer 3 and the face adhesive 21 to transmit the moisture to the face adhesive 21 and the upper base cloth layer 1, and the face adhesive 21 is provided with the sheath-core microporous fiber 4, has hygroscopicity and waterproofness, helps to rapidly drain internal water vapor, simultaneously prevents external macromolecular water from entering the fabric, has gradient in hygroscopicity and water storage capacity of the primer 22 and the face adhesive 21, has good moisture draining efficiency and water storage capacity, and is lower in thickness compared with the traditional microporous film fabric, so that the strength and service life of the microporous film are reduced.
The waterproof moisture-permeable layer 2 is formed by double-layer glue, has thicker thickness and is mixed with the sheath-core microporous fibers and the special-shaped fibers 5, so that the strength and the service life of the waterproof moisture-permeable layer 2 are effectively improved, the waterproof moisture-permeable layer 2 can keep high moisture permeability and water resistance due to the fact that the sheath-core microporous fibers 4 and the special-shaped fibers 5 with good moisture permeability are mixed with the waterproof moisture-permeable layer 2, and the waterproof moisture-permeable layer 2 with the double-layer composite fiber structure has good water washing resistance and has little drop of hydrostatic pressure after 10 times of washing. The sheath-core microcellular fibers 4 are prepared by approximately dissolving polyacrylonitrile in dimethylformamide to prepare spinning dope, and then adding a substance having a boiling point higher than that of dimethylformamide and simultaneously being dissolved in water, such as glycerin or glycerin derivative, to the dope, and the dimethylformamide is first evaporated into primary filaments, and the high boiling point substance is washed out in the subsequent hot stretching, thereby forming a multi-bubble core layer 41 and a capillary-embedded sheath layer 42.
The upper surface of the upper base cloth layer 1 and the lower surface of the lower base cloth layer 3 are distributed with fluff, and the fluff is embedded into the face glue 21 and the base glue 22.
The lower base cloth layer 3 is of a double-layer structure, the lower base cloth layer 3 comprises a close-fitting fabric layer and a water storage layer from bottom to top, the water storage layer is bonded with the waterproof moisture-permeable layer 2, the material of the close-fitting fabric layer is polypropylene fiber, grooves are distributed on the polypropylene fiber, and the material of the water storage layer is cotton fiber. After the human body is subjected to a large load, the fabric has good circumferential conveying capability on sweat, and the sweat is adsorbed on the fabric to form a water film and then is adhered to skin, so that the human body feels uncomfortable, and the heat insulation performance is poor due to the phenomenon of reverse wetting because the sweat cannot be discharged in time, so that the human body is cooled and spasms, and even the human body is possibly lost in an outdoor extreme climate; the water storage performance of the water storage layer is good, the water storage layer and the body-fitting fabric layer are made of cotton fibers with good hygroscopicity, gradient difference is formed between the water storage layer and the body-fitting fabric layer, and the water is promoted to move from the body-fitting fabric layer to the water storage layer, so that the water is accelerated to be conveyed outwards, and the body-fitting fabric layer contacted with the human body is kept dry as much as possible.
As shown in fig. 4, the fabric weave of the lower base fabric layer 3 is a lower-connected upper double-layer weave, the basic weave of the surface layer and the inner layer is a three-upper-three-lower twill weave, the arrangement ratio of warp yarns and weft yarns of the surface layer and the inner layer is 1:1, the binding weave is a five-upper-lower twill weave, the number of warp and weft weave cycles is 12, and the fabric weave of the upper base fabric layer 1 is a plain weave. In the weave circulation, arabic numerals are used for representing surface warps and surface wefts, lowercase letters are used for representing the inner warps and the inner wefts, a weave symbol '■' is marked at the interweaving positions of the surface warps and the surface wefts, a weave symbol 'X' is marked at the interweaving positions of the inner warps and the inner wefts, the intersection positions of the inner warps and the surface wefts are a binding weave, the binding symbol is 'T-Y', the intersection positions of the surface warps and the inner wefts are respectively represented by 'S', the surface layer and the inner layer of the lower base cloth are respectively three upper and three lower twill weave, compared with plain weave, the lower base cloth layer 3 is softer in number of interweaving times, good in fit and comfort, and can absorb sweat of a human body compared with plain weave, the upper and lower twill weave is smaller in weaving point, and softer and close-fitting than the upper and lower twill weave, meanwhile, the air flow between the base cloth and the fabric is less, the heat insulation performance of the fabric can be improved, the traditional fabric needs to be improved, and the thickness of the fabric needs to be improved, compared with plain weave, the lower base cloth layer 3 is of a double-layer structure, the fabric is better in fit, the waterproof layer 2 is better in water-proof and moisture permeability, and the fabric is suitable for being formed by the double-layer, and the fabric is better in winter, and the heat-proof fabric is suitable for being used for being a waterproof layer.
The preparation process of the cold-resistant fiber membrane waterproof and moisture-permeable fabric comprises the following steps:
Step a, preparing upper base cloth and lower base cloth, and preparing raw materials of face glue 21 and base glue 22;
The fabric disclosed by the invention can well ensure that water cannot permeate, but the surface of the fabric can be wetted by water or absorb water, the quality of clothes is increased, a layer of water film is formed on the surface of the fabric, the moisture permeability is reduced, and the penetration is easy to occur, so that the outer base fabric layers are subjected to water-splashing prevention finishing to ensure that the fabric is not wetted after water spraying, the wearing experience is improved, and the problems of brightening of the fabric, uneven hand feeling and the like caused by post-processing glue seepage can be avoided after the base fabric is subjected to water-splashing prevention treatment.
And c, napping the top surface of the lower base cloth and the bottom surface of the upper base cloth, napping the surfaces of the upper base cloth and the lower base cloth, and changing the surface performance of the outer base cloth after water splashing prevention finishing, so that the bonding effect of the base cloth and glue is poor, thereby influencing the hydrostatic pressure resistance and the water washing resistance of the laminated fabric. The surface of the upper base cloth and the surface of the lower base cloth are napped, the naps are fused with the waterproof breathable layer in the compounding process, the naps are embedded into the waterproof breathable layer, the bonding strength of the base cloth and the waterproof breathable layer can be greatly improved, air bubbles in the water washing process are avoided, the water washing fastness is improved, meanwhile, the naps are embedded into the waterproof breathable layer, the contact area of the base cloth and the waterproof breathable layer is improved, the conveying speed of moisture is improved, and moisture is accelerated to enter the waterproof breathable layer 2 and be conveyed to the outside.
Step d, preparing primer 22 and face glue 21;
step e, coating primer 22 on the upper surface of the lower base cloth, and coating face glue 21 on the lower surface of the upper base cloth;
And f, attaching the primer 22 and the face glue 21, and carrying out hot-pressing compounding on the lower base cloth coated with the primer 22 and the upper base cloth coated with the face glue 21 to obtain the cold-resistant fiber membrane waterproof moisture-permeable fabric. The primer 22 and the face glue 21 are mutually bonded through a hot-pressing compounding process, the primer 22 and the face glue 21 are instantaneously compounded under pressure, the peeling strength of the fabric after hot pressing is between 13.5 and 15.5N, the peeling strength is kept above 9N after washing for 5 to 6 times, the air permeability is more than 5mm/s, the moisture permeability is more than 8000g/m < 2 >. 24H, and the hydrostatic pressure is more than 5000 mm.H2.
In the step d, the polyurethane moisture-permeable resin, the special-shaped fiber 5 and the dimethylformamide are uniformly mixed to prepare the primer 22, and the polyurethane moisture-permeable resin, the sheath-core microporous fiber 4 and the dimethylformamide are uniformly mixed to prepare the face adhesive 21. Before the primer 22 and the face glue 21 are prepared, the special-shaped fiber 5 and the sheath-core microporous fiber 4 are soaked in dimethylformamide to enable the dimethylformamide to fill the grooves and micropores of the fiber, then polyurethane moisture-permeable resin is added to mix to prepare the primer 22 and the face glue 21, and the dimethylformamide in the special-shaped fiber 5 and the sheath-core microporous fiber 4 is dissolved and separated out together in the subsequent soaking process of aqueous solution.
In the step d, the primer 22 is uniformly coated on the upper surface of the lower base cloth, the polyurethane moisture-permeable resin is solidified into a microporous base film mixed with the special-shaped fibers 5 while being dissolved and separated out in the aqueous solution through the impregnation of the aqueous solution, the microporous base film is put into an oven for pre-drying, the surface adhesive 21 is uniformly coated on the lower surface of the upper base cloth, and the polyurethane moisture-permeable resin is solidified into a microporous mask mixed with the sheath-core microporous fibers 4 while being dissolved and separated out in the aqueous solution through the impregnation of the aqueous solution, and the microporous mask is put into the oven for pre-drying. The running speed and the coating gap size of the upper base cloth and the lower base cloth are controlled by the tension, so that the primer 22 and the face adhesive 21 are uniformly coated on the base cloth.
The foregoing is merely a few specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the concept should be construed as infringement of the protection scope of the present invention.
Claims (7)
1. The cold-resistant fiber membrane waterproof moisture-permeable fabric is characterized by sequentially comprising an upper base cloth layer, a waterproof moisture-permeable layer and a lower base cloth layer from top to bottom, wherein the waterproof moisture-permeable layer comprises a surface adhesive and a primer which are bonded with each other, the surface adhesive is adhered to the lower surface of the upper base cloth layer, the primer is adhered to the upper surface of the lower base cloth layer, micropores are distributed on the surface adhesive and the primer, the surface adhesive comprises sheath-core microporous fibers, and the primer comprises special-shaped fibers.
2. The cold-resistant fiber membrane waterproof moisture-permeable fabric of claim 1, wherein the sheath-core microporous fiber is of a sheath-core structure, the sheath-core microporous fiber comprises a core layer and a skin layer, the core layer is foam porous, water-absorbing capillaries are embedded in the skin layer, and 3-4 grooves are distributed on the cross section of the special-shaped fiber.
3. The cold-resistant fiber membrane waterproof moisture-permeable fabric of claim 1, wherein the upper surface of the upper base cloth layer and the lower surface of the lower base cloth layer are distributed with fluff, and the fluff is embedded into the face glue and the base glue.
4. The cold-resistant fiber membrane waterproof moisture-permeable fabric of claim 1, wherein the lower base cloth layer is of a double-layer structure, the lower base cloth layer comprises a next-to-skin fabric layer and a water storage layer from bottom to top, the water storage layer is bonded with the waterproof moisture-permeable layer, the next-to-skin fabric layer is made of polypropylene fiber, grooves are distributed on the polypropylene fiber, and the water storage layer is made of cotton fiber.
5. The cold-resistant fiber membrane waterproof moisture-permeable fabric of claim 1, wherein the fabric weave of the lower base fabric layer is a lower-connected upper double-layer weave, the basic weave of the surface layer and the inner layer is a three-upper-three-lower twill weave, the warp and weft arrangement ratio of the surface layer to the inner layer is 1:1, the binding weave is a five-upper-lower twill weave, the warp and weft weave circulation number is 12, and the fabric weave of the upper base fabric layer is a plain weave.
6. The process for preparing the cold-resistant fiber membrane waterproof and moisture-permeable fabric according to any one of claims 1 to 5, which is characterized by comprising the following steps:
Step a, preparing upper base cloth and lower base cloth, and preparing raw materials of face glue and base glue;
step b, performing water splashing prevention treatment on the surfaces of the upper base cloth and the lower base cloth;
step c, napping treatment is carried out on the top surface of the lower base cloth and the bottom surface of the upper base cloth, and napping is carried out on the surfaces of the upper base cloth and the lower base cloth;
Step d, preparing primer and face glue;
step e, coating primer on the upper surface of the lower base cloth, and coating surface primer on the lower surface of the upper base cloth;
f, bonding the primer and the face glue, and carrying out hot-pressing compounding on the lower base cloth coated with the primer and the upper base cloth coated with the face glue to obtain the cold-resistant fiber membrane waterproof moisture-permeable fabric;
In the step d, uniformly mixing the polyurethane moisture-permeable resin, the special-shaped fiber and the dimethylformamide to obtain a primer, and uniformly mixing the polyurethane moisture-permeable resin, the sheath-core microporous fiber and the dimethylformamide to obtain the face adhesive.
7. The process for preparing the cold-resistant fiber membrane waterproof moisture-permeable fabric according to claim 6, wherein in the step e, primer is uniformly coated on the upper surface of the lower base fabric, the polyurethane moisture-permeable resin is solidified into a microporous base membrane mixed with special-shaped fibers while being dissolved and separated out in aqueous solution through the impregnation of aqueous solution, the microporous base membrane is put into an oven for pre-drying, the surface adhesive is uniformly coated on the lower surface of the upper base fabric, and the polyurethane moisture-permeable resin is solidified into a microporous mask mixed with sheath-core microporous fibers while being dissolved and separated out in aqueous solution through the impregnation of aqueous solution, and the microporous mask is put into the oven for pre-drying.
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