CN111876878A - Breathable waterproof fabric and preparation method thereof - Google Patents
Breathable waterproof fabric and preparation method thereof Download PDFInfo
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- CN111876878A CN111876878A CN202010712172.7A CN202010712172A CN111876878A CN 111876878 A CN111876878 A CN 111876878A CN 202010712172 A CN202010712172 A CN 202010712172A CN 111876878 A CN111876878 A CN 111876878A
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/10—Bamboo
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/04—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons
- D10B2321/042—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons polymers of fluorinated hydrocarbons, e.g. polytetrafluoroethene [PTFE]
Abstract
The invention discloses a breathable waterproof fabric and a preparation method thereof, wherein the breathable waterproof fabric is prepared by blending high-performance composite fibers, cotton fibers, bamboo fibers and polytetrafluoroethylene fibers, then performing a knitting or weaving process, and finishing by adopting a three-proofing finishing agent; wherein the weight portions are as follows: 60-68 parts of high-performance composite fiber, 20-25 parts of cotton fiber, 12-16 parts of bamboo fiber and 7-10 parts of polytetrafluoroethylene fiber; the high-performance composite fiber comprises an inner layer and an outer layer; the outer layer is coated on the outer surface of the inner layer, and the cross section of the outer layer is circular; the ratio of the cross-sectional areas of the inner layer and the outer layer is 1: (0.55-0.65). The breathable waterproof fabric is high in air permeability and good in breathability; the waterproof performance is good; the (warp direction) tensile strength and bursting strength are high, the mechanical property is good, and the durability is good; all performance indexes are excellent, and the comprehensive use performance is good.
Description
Technical Field
The invention relates to the technical field of textile fabrics, in particular to a breathable waterproof fabric and a preparation method thereof.
Background
Fabric is the material used to make clothing. As one of the three elements of the garment, the fabric not only can explain the style and the characteristics of the garment, but also directly controls the expression effects of the color and the shape of the garment. The functional fabric refers to a fabric with certain special performance and purposes, such as water resistance, wind resistance, air permeability, moisture permeability, heat preservation, oil resistance, easy decontamination, bacteria resistance, deodorization, ultraviolet resistance, static resistance, radiation resistance, flame resistance, high temperature resistance, acid and alkali resistance and the like. Among the new functional textile materials, polyester fiber is the most developed synthetic fiber.
The functional fabric is mainly obtained by two ways, namely a functional fiber weaving method and a functional auxiliary agent padding method. The functional fiber manufacturing method is to adopt high-performance fibers with special functions in the yarn spinning stage, such as high-performance fibers of carbon fibers, aramid fibers, polysulfonamide, high-strength vinylon, high-strength high-modulus polyethylene, polyphenylene sulfide (PPS), Polybenzobisoxazole (PBO) and the like in the supporting field of national key new product plans (2012), wherein the aramid fibers have high temperature resistance, flame retardance and high toughness and can be made into various protective clothing, fire-fighting clothing, bulletproof clothing and the like. The padding method of the functional additive is to adopt an advanced coating technology to coat different chemical raw materials on a cloth surface so that the cloth has special functions of water resistance, flame retardance, static resistance, strength enhancement and the like. Common coating materials include PU (polyurethane) coating, PVC (polyvinyl chloride) coating, PA (polyacrylate) coating and the like.
Polyamide (PA) is commonly called nylon, is a general name of thermoplastic resin containing repeated amide groups on a molecular main chain, and has excellent mechanical property, frictional wear property, self-lubricating property, shock absorption, noise reduction and other properties, oil resistance, alkali resistance, weak acid resistance and common organic solvents. Polyamides include aliphatic polyamides, aromatic polyamides and aliphatic-aromatic polyamides, while aromatic polyamides include semi-aromatic polyamides and wholly aromatic polyamides. Among them, aliphatic polyamide has many varieties, large yield and most extensive application. Aliphatic polyamide has good surface due to low melting point and good fluidity, but has poor dimensional stability due to high water absorption, and the composite product has low modulus, so that the aliphatic polyamide is not suitable for shell materials. In recent years, the rise of semi-aromatic polyamides (such as PA6T, PA9T and PA10T) has increased more selectivity for polyamide applications.
Nylon is a term for polyamide fiber (nylon) and can be made into long fibers or short fibers. Nylon is a trade name for polyamide fiber, also known as Nylon (Nylon). The basic component of Polyamide (abbreviated as PA) is aliphatic Polyamide linked by amide bonds [ NHCO ] -.
However, the currently used fabrics still have the following problems:
1. the air permeability is poor, the wearing comfort is poor, and the user experience is poor;
2. the waterproof performance is poor, the waterproof fabric is easy to wet, is poor in wearing comfort and is poor in user experience;
3. the (warp direction) tensile strength and bursting strength are low, the mechanical property is poor, and the product is easy to be seriously deformed, even torn or broken under the action of external force, so that the service life of the product is short.
Disclosure of Invention
Based on the above situation, the invention aims to provide a breathable waterproof fabric and a preparation method thereof, which can effectively solve the above problems.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a breathable waterproof fabric is prepared by blending high-performance composite fibers, cotton fibers, bamboo fibers and polytetrafluoroethylene fibers, then performing a knitting or weaving process, and finishing by adopting a three-proofing finishing agent; wherein the weight portions are as follows: 60-68 parts of high-performance composite fiber, 20-25 parts of cotton fiber, 12-16 parts of bamboo fiber and 7-10 parts of polytetrafluoroethylene fiber;
the high-performance composite fiber comprises an inner layer and an outer layer;
the outer layer is coated on the outer surface of the inner layer, and the cross section of the outer layer is circular;
the ratio of the cross-sectional areas of the inner layer and the outer layer is 1: (0.55-0.65);
the inner layer is prepared from the following raw materials in parts by weight: 75-85 parts of polyhexamethylene adipamide, 18-23 parts of organic silicon modified polyurethane elastomer and 6-9 parts of light nano calcium carbonate;
the outer layer is prepared from the following raw materials in parts by weight: 55-65 parts of polyhexamethylene dodecanoylamide, 30-37 parts of pentanediamine polyadipate, 8-12 parts of phenylene ether silicone rubber, 2-2.5 parts of graphene fiber, 2.4-3 parts of glass fiber, 1.8-2.2 parts of nano silicon dioxide and 4-6 parts of oxidized polyethylene wax.
Preferably, the breathable waterproof fabric is prepared by blending high-performance composite fibers, cotton fibers, bamboo fibers and polytetrafluoroethylene fibers and performing a knitting or weaving process; wherein the weight portions are as follows: 64 parts of high-performance composite fiber, 22.5 parts of cotton fiber, 14 parts of bamboo fiber and 8.5 parts of polytetrafluoroethylene fiber;
the ratio of the cross-sectional areas of the inner layer and the outer layer is 1: 0.6;
the inner layer is prepared from the following raw materials in parts by weight: 80 parts of polyhexamethylene adipamide, 20.5 parts of organosilicon modified polyurethane elastomer and 7.5 parts of light nano calcium carbonate;
the outer layer is prepared from the following raw materials in parts by weight: 60 parts of polyhexamethylene dodecanoyldiamine,
34 parts of poly (glutaric adipamide),
10 parts of phenylate phenylene silicon rubber,
2.3 parts of graphene fiber,
2.7 parts of glass fiber,
2 parts of nano silicon dioxide,
5 parts of oxidized polyethylene wax.
Preferably, the cross-sectional profile of the inner layer is in the shape of a regular pentagon.
Preferably, the inner layer and the outer layer both further comprise the following raw materials in parts by weight: 2-4 parts of an antioxidant.
Preferably, the inner layer and the outer layer both further comprise the following raw materials in parts by weight: 2-4 parts of a heat stabilizer.
Preferably, the inner layer and the outer layer both further comprise the following raw materials in parts by weight: 3-4 parts of a filler.
Preferably, the three-proofing finishing agent is Oli FluBao 7713 three-proofing finishing agent.
Preferably, the filler is superfine pearl powder.
The invention also provides a preparation method of the breathable waterproof fabric, which comprises the following steps:
A. weighing the raw materials of the inner layer and the outer layer according to the parts by weight, respectively drying the raw materials of the inner layer and the outer layer until the water content of the raw materials of the inner layer and the outer layer is lower than 3 per thousand; then, respectively and uniformly mixing the raw materials of the inner layer and the outer layer for later use;
B. feeding the mixed inner layer raw materials into a single screw extruder to be melted into an inner layer mixed melt;
C. feeding the mixed outer layer raw materials into a double-screw extruder to be melted into an outer layer mixed melt;
D. the inner layer mixed melt and the outer layer mixed melt enter a composite spinning machine, are sprayed out from a composite spinneret plate after being subjected to melt distribution to form a strand silk with an inner layer structure and an outer layer structure, and are subjected to air blowing cooling, oiling, stretching and winding to obtain a high-performance composite fiber;
E. then blending the high-performance composite fiber, the cotton fiber, the bamboo fiber and the polytetrafluoroethylene fiber to obtain blended fiber;
F. the blended fiber is made into a breathable waterproof fabric primary product through a knitting or weaving process;
G. finishing the primary breathable waterproof fabric by adopting a three-proofing finishing agent to obtain the breathable waterproof fabric.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the breathable waterproof fabric is prepared by selecting raw materials, optimizing the content of each raw material and selecting high-performance composite fiber, cotton fiber, bamboo fiber and polytetrafluoroethylene fiber in proper proportion, so that the respective advantages are fully exerted, the high-performance composite fiber, the cotton fiber, the bamboo fiber and the polytetrafluoroethylene fiber complement each other and promote each other, and the prepared breathable waterproof fabric is high in air permeability and good in air permeability; the waterproof performance is good; the (warp direction) tensile strength and bursting strength are high, the mechanical property is good, and the durability is good; each performance index is good, and comprehensive performance is good, has promoted the use experience and the life of product.
The breathable waterproof fabric disclosed by the invention is prepared by mixing high-performance composite fibers, cotton fibers, bamboo fibers and polytetrafluoroethylene fibers, wherein the high-performance composite fibers mainly provide good mechanical properties (tear resistance and wear resistance) and rebound resilience, and ensure high (warp direction) tensile strength and bursting strength, good mechanical properties and good durability; the cotton fiber is mainly used for improving the moisture absorption performance and increasing the wearing comfort; the bamboo fiber can greatly improve the air permeability, and has good moisture absorption performance and high wearing comfort; the addition of the polytetrafluoroethylene fibers increases hydrophobicity, increases drainage (sweat) performance and enhances waterproofness.
In the high-performance composite fiber, the inner layer adopts polyhexamethylene adipamide as a main matrix material, so that the high-performance composite fiber has good strength and wear resistance, and good mechanical properties are ensured.
And a proper amount of organic silicon modified polyurethane elastomer is added, so that the softness and resilience are improved.
The addition of a proper amount of light nano calcium carbonate increases the strength of the inner layer, and has light weight and low cost.
The outer layer adopts polyhexamethylene dodecanoylamide and polyhexamethylene adipamide as main composite base materials, has higher strength and better wear resistance than the inner layer, and has better softness and rebound resilience and excellent mechanical property.
The proper amount of the phenylene ether silicone rubber is added, so that the tear strength of the high-performance composite fiber can be obviously improved, the tensile strength, the elongation at break and the like of the high-performance composite fiber can be improved, and the ultralight property and excellent mechanical property are well considered.
Proper amount of graphene fiber is added and matched with other components, so that the anti-attrition performance of the high-performance composite fiber is greatly improved, and the wear resistance is improved; the tear strength, the tensile strength, the elongation at break and the like of the high-performance composite fiber are further improved, and the ultralight property and excellent mechanical properties are well considered.
The addition of a proper amount of glass fiber and nano-silica obviously improves the tearing strength, the tensile strength, the elongation at break and the like of the high-performance composite fiber, and improves the mechanical properties.
The addition of appropriate amount of filler (superfine pearl powder) has reinforcing effect, and can improve air permeability and comfort.
The addition of a proper amount of oxidized polyethylene wax has good dispersion compatibility with the raw materials of the outer layer of the high-performance composite fiber, so that the raw materials of the outer layer of the high-performance composite fiber are easier to mix uniformly.
The antioxidants described in the present invention are antioxidants commonly used in the art, mainly against the effects of (thermal) oxidation. The kind and amount of the antioxidant can be determined as desired by those skilled in the art.
The heat stabilizers described in the present invention are heat stabilizers commonly used in the art, primarily against the effects of (thermal) oxidation. The kind and amount of the heat stabilizer can be determined by those skilled in the art according to the need.
The preparation method has simple process and simple and convenient operation, and saves manpower and equipment cost.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
Example 1:
a breathable waterproof fabric is prepared by blending high-performance composite fibers, cotton fibers, bamboo fibers and polytetrafluoroethylene fibers, then performing a knitting or weaving process, and finishing by adopting a three-proofing finishing agent; wherein the weight portions are as follows: 60-68 parts of high-performance composite fiber, 20-25 parts of cotton fiber, 12-16 parts of bamboo fiber and 7-10 parts of polytetrafluoroethylene fiber;
the high-performance composite fiber comprises an inner layer and an outer layer;
the outer layer is coated on the outer surface of the inner layer, and the cross section of the outer layer is circular;
the ratio of the cross-sectional areas of the inner layer and the outer layer is 1: (0.55-0.65);
the inner layer is prepared from the following raw materials in parts by weight: 75-85 parts of polyhexamethylene adipamide, 18-23 parts of organic silicon modified polyurethane elastomer and 6-9 parts of light nano calcium carbonate;
the outer layer is prepared from the following raw materials in parts by weight: 55-65 parts of polyhexamethylene dodecanoylamide, 30-37 parts of pentanediamine polyadipate, 8-12 parts of phenylene ether silicone rubber, 2-2.5 parts of graphene fiber, 2.4-3 parts of glass fiber, 1.8-2.2 parts of nano silicon dioxide and 4-6 parts of oxidized polyethylene wax.
Preferably, the breathable waterproof fabric is prepared by blending high-performance composite fibers, cotton fibers, bamboo fibers and polytetrafluoroethylene fibers and performing a knitting or weaving process; wherein the weight portions are as follows: 64 parts of high-performance composite fiber, 22.5 parts of cotton fiber, 14 parts of bamboo fiber and 8.5 parts of polytetrafluoroethylene fiber;
the ratio of the cross-sectional areas of the inner layer and the outer layer is 1: 0.6;
the inner layer is prepared from the following raw materials in parts by weight: 80 parts of polyhexamethylene adipamide, 20.5 parts of organosilicon modified polyurethane elastomer and 7.5 parts of light nano calcium carbonate;
the outer layer is prepared from the following raw materials in parts by weight: 60 parts of polyhexamethylene dodecanoylamide, 34 parts of pentanediamine adipate, 10 parts of phenylene ether silicone rubber, 2.3 parts of graphene fiber, 2.7 parts of glass fiber, 2 parts of nano silicon dioxide and 5 parts of oxidized polyethylene wax.
Preferably, the cross-sectional profile of the inner layer is in the shape of a regular pentagon.
Preferably, the inner layer and the outer layer both further comprise the following raw materials in parts by weight: 2-4 parts of an antioxidant.
Preferably, the inner layer and the outer layer both further comprise the following raw materials in parts by weight: 2-4 parts of a heat stabilizer.
Preferably, the inner layer and the outer layer both further comprise the following raw materials in parts by weight: 3-4 parts of a filler.
Preferably, the three-proofing finishing agent is Oli FluBao 7713 three-proofing finishing agent.
Preferably, the filler is superfine pearl powder.
The embodiment also provides a preparation method of the breathable waterproof fabric, which comprises the following steps:
A. weighing the raw materials of the inner layer and the outer layer according to the parts by weight, respectively drying the raw materials of the inner layer and the outer layer until the water content of the raw materials of the inner layer and the outer layer is lower than 3 per thousand; then, respectively and uniformly mixing the raw materials of the inner layer and the outer layer for later use;
B. feeding the mixed inner layer raw materials into a single screw extruder to be melted into an inner layer mixed melt;
C. feeding the mixed outer layer raw materials into a double-screw extruder to be melted into an outer layer mixed melt;
D. the inner layer mixed melt and the outer layer mixed melt enter a composite spinning machine, are sprayed out from a composite spinneret plate after being subjected to melt distribution to form a strand silk with an inner layer structure and an outer layer structure, and are subjected to air blowing cooling, oiling, stretching and winding to obtain a high-performance composite fiber;
E. then blending the high-performance composite fiber, the cotton fiber, the bamboo fiber and the polytetrafluoroethylene fiber to obtain blended fiber;
F. the blended fiber is made into a breathable waterproof fabric primary product through a knitting or weaving process;
G. finishing the primary breathable waterproof fabric by adopting a three-proofing finishing agent to obtain the breathable waterproof fabric.
Example 2:
a breathable waterproof fabric is prepared by blending high-performance composite fibers, cotton fibers, bamboo fibers and polytetrafluoroethylene fibers, then performing a knitting or weaving process, and finishing by adopting a three-proofing finishing agent; wherein the weight portions are as follows: 60 parts of high-performance composite fiber, 20 parts of cotton fiber, 12 parts of bamboo fiber and 7 parts of polytetrafluoroethylene fiber;
the high-performance composite fiber comprises an inner layer and an outer layer;
the outer layer is coated on the outer surface of the inner layer, and the cross section of the outer layer is circular;
the ratio of the cross-sectional areas of the inner layer and the outer layer is 1: 0.55;
the inner layer is prepared from the following raw materials in parts by weight: 75 parts of polyhexamethylene adipamide, 18 parts of organosilicon modified polyurethane elastomer and 6 parts of light nano calcium carbonate;
the outer layer is prepared from the following raw materials in parts by weight: 55 parts of polyhexamethylene dodecanoylamide, 30 parts of pentanediamine polyadipate, 8 parts of phenylene ether silicone rubber, 2 parts of graphene fiber, 2.4 parts of glass fiber, 1.8 parts of nano silicon dioxide and 4 parts of oxidized polyethylene wax.
In this embodiment, the cross-sectional profile of the inner layer is in the shape of a regular pentagon.
In this embodiment, the inner layer and the outer layer each further include the following raw materials in parts by weight: and 2 parts of an antioxidant.
In this embodiment, the inner layer and the outer layer each further include the following raw materials in parts by weight: and 2 parts of a heat stabilizer.
In this embodiment, the inner layer and the outer layer each further include the following raw materials in parts by weight: 3 parts of a filler.
In this embodiment, the three-proofing finishing agent is orlistat 7713 three-proofing finishing agent.
In this embodiment, the filler is an ultrafine pearl powder.
In this embodiment, the method for preparing the breathable waterproof fabric includes the following steps:
A. weighing the raw materials of the inner layer and the outer layer according to the parts by weight, respectively drying the raw materials of the inner layer and the outer layer until the water content of the raw materials of the inner layer and the outer layer is lower than 2.5 per thousand; then, respectively and uniformly mixing the raw materials of the inner layer and the outer layer for later use;
B. feeding the mixed inner layer raw materials into a single screw extruder to be melted into an inner layer mixed melt;
C. feeding the mixed outer layer raw materials into a double-screw extruder to be melted into an outer layer mixed melt;
D. the inner layer mixed melt and the outer layer mixed melt enter a composite spinning machine, are sprayed out from a composite spinneret plate after being subjected to melt distribution to form a strand silk with an inner layer structure and an outer layer structure, and are subjected to air blowing cooling, oiling, stretching and winding to obtain a high-performance composite fiber;
E. then blending the high-performance composite fiber, the cotton fiber, the bamboo fiber and the polytetrafluoroethylene fiber to obtain blended fiber;
F. the blended fiber is made into a breathable waterproof fabric primary product through a knitting or weaving process;
G. finishing the primary breathable waterproof fabric by adopting a three-proofing finishing agent to obtain the breathable waterproof fabric.
Example 3:
a breathable waterproof fabric is prepared by blending high-performance composite fibers, cotton fibers, bamboo fibers and polytetrafluoroethylene fibers, then performing a knitting or weaving process, and finishing by adopting a three-proofing finishing agent;
wherein the weight portions are as follows: 68 parts of high-performance composite fiber, 25 parts of cotton fiber, 16 parts of bamboo fiber and 10 parts of polytetrafluoroethylene fiber;
the high-performance composite fiber comprises an inner layer and an outer layer;
the outer layer is coated on the outer surface of the inner layer, and the cross section of the outer layer is circular;
the ratio of the cross-sectional areas of the inner layer and the outer layer is 1: 0.65;
the inner layer is prepared from the following raw materials in parts by weight: 85 parts of polyhexamethylene adipamide, 23 parts of organosilicon modified polyurethane elastomer and 9 parts of light nano calcium carbonate;
the outer layer is prepared from the following raw materials in parts by weight: 65 portions of poly-dodecyl hexamethylene diamine,
37 portions of poly (glutaric adipamide),
12 parts of phenylate phenylene silicon rubber,
2.5 parts of graphene fiber,
3 portions of glass fiber,
2.2 parts of nano silicon dioxide,
And 6 parts of oxidized polyethylene wax.
In this embodiment, the cross-sectional profile of the inner layer is in the shape of a regular pentagon.
In this embodiment, the inner layer and the outer layer each further include the following raw materials in parts by weight: and 4 parts of an antioxidant.
In this embodiment, the inner layer and the outer layer each further include the following raw materials in parts by weight: 4 parts of a heat stabilizer.
In this embodiment, the inner layer and the outer layer each further include the following raw materials in parts by weight: 4 parts of a filler.
In this embodiment, the three-proofing finishing agent is orlistat 7713 three-proofing finishing agent.
In this embodiment, the filler is an ultrafine pearl powder.
In this embodiment, the method for preparing the breathable waterproof fabric includes the following steps:
A. weighing the raw materials of the inner layer and the outer layer according to the parts by weight, respectively drying the raw materials of the inner layer and the outer layer until the water content of the raw materials of the inner layer and the outer layer is lower than 2.5 per thousand; then, respectively and uniformly mixing the raw materials of the inner layer and the outer layer for later use;
B. feeding the mixed inner layer raw materials into a single screw extruder to be melted into an inner layer mixed melt;
C. feeding the mixed outer layer raw materials into a double-screw extruder to be melted into an outer layer mixed melt;
D. the inner layer mixed melt and the outer layer mixed melt enter a composite spinning machine, are sprayed out from a composite spinneret plate after being subjected to melt distribution to form a strand silk with an inner layer structure and an outer layer structure, and are subjected to air blowing cooling, oiling, stretching and winding to obtain a high-performance composite fiber;
E. then blending the high-performance composite fiber, the cotton fiber, the bamboo fiber and the polytetrafluoroethylene fiber to obtain blended fiber;
F. the blended fiber is made into a breathable waterproof fabric primary product through a knitting or weaving process;
G. finishing the primary breathable waterproof fabric by adopting a three-proofing finishing agent to obtain the breathable waterproof fabric.
Example 4:
a breathable waterproof fabric is prepared by blending high-performance composite fibers, cotton fibers, bamboo fibers and polytetrafluoroethylene fibers, then performing a knitting or weaving process, and finishing by adopting a three-proofing finishing agent; wherein the weight portions are as follows: 64 parts of high-performance composite fiber, 22.5 parts of cotton fiber, 14 parts of bamboo fiber and 8.5 parts of polytetrafluoroethylene fiber;
the high-performance composite fiber comprises an inner layer and an outer layer;
the outer layer is coated on the outer surface of the inner layer, and the cross section of the outer layer is circular;
the ratio of the cross-sectional areas of the inner layer and the outer layer is 1: 0.6;
the inner layer is prepared from the following raw materials in parts by weight: 80 parts of polyhexamethylene adipamide, 20.5 parts of organosilicon modified polyurethane elastomer and 7.5 parts of light nano calcium carbonate;
the outer layer is prepared from the following raw materials in parts by weight: 60 parts of polyhexamethylene dodecanoylamide, 34 parts of pentanediamine adipate, 10 parts of phenylene ether silicone rubber, 2.3 parts of graphene fiber, 2.7 parts of glass fiber, 2 parts of nano silicon dioxide and 5 parts of oxidized polyethylene wax.
In this embodiment, the cross-sectional profile of the inner layer is in the shape of a regular pentagon.
In this embodiment, the inner layer and the outer layer each further include the following raw materials in parts by weight: and 3 parts of an antioxidant.
In this embodiment, the inner layer and the outer layer each further include the following raw materials in parts by weight: and 3 parts of a heat stabilizer.
In this embodiment, the inner layer and the outer layer each further include the following raw materials in parts by weight: 3.5 parts of a filler.
In this embodiment, the three-proofing finishing agent is orlistat 7713 three-proofing finishing agent.
In this embodiment, the filler is an ultrafine pearl powder.
In this embodiment, the method for preparing the breathable waterproof fabric includes the following steps:
A. weighing the raw materials of the inner layer and the outer layer according to the parts by weight, respectively drying the raw materials of the inner layer and the outer layer until the water content of the raw materials of the inner layer and the outer layer is lower than 2.5 per thousand; then, respectively and uniformly mixing the raw materials of the inner layer and the outer layer for later use;
B. feeding the mixed inner layer raw materials into a single screw extruder to be melted into an inner layer mixed melt;
C. feeding the mixed outer layer raw materials into a double-screw extruder to be melted into an outer layer mixed melt;
D. the inner layer mixed melt and the outer layer mixed melt enter a composite spinning machine, are sprayed out from a composite spinneret plate after being subjected to melt distribution to form a strand silk with an inner layer structure and an outer layer structure, and are subjected to air blowing cooling, oiling, stretching and winding to obtain a high-performance composite fiber;
E. then blending the high-performance composite fiber, the cotton fiber, the bamboo fiber and the polytetrafluoroethylene fiber to obtain blended fiber;
F. the blended fiber is made into a breathable waterproof fabric primary product through a knitting or weaving process;
G. finishing the primary breathable waterproof fabric by adopting a three-proofing finishing agent to obtain the breathable waterproof fabric.
The following breathable waterproof fabrics (gram weight 500 g/m) obtained in examples 2 to 4 of the present invention2) And common pure cotton fabric (gram weight 500 g/m)2) The performance test was performed, and the test results are shown in table 1.
TABLE 1
As can be seen from the above table, compared with the common pure cotton fabric, the breathable waterproof fabric of the present invention has the following advantages: the air permeability is high, and the air permeability is good; the waterproof performance is good; the (warp direction) tensile strength and bursting strength are high, the mechanical property is good, and the durability is good; all performance indexes are excellent, and the comprehensive use performance is good.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (9)
1. The breathable waterproof fabric is characterized by being prepared by blending high-performance composite fibers, cotton fibers, bamboo fibers and polytetrafluoroethylene fibers, then performing a knitting or weaving process, and finishing by adopting a three-proofing finishing agent; wherein the weight portions are as follows: 60-68 parts of high-performance composite fiber, 20-25 parts of cotton fiber, 12-16 parts of bamboo fiber and 7-10 parts of polytetrafluoroethylene fiber;
the high-performance composite fiber comprises an inner layer and an outer layer;
the outer layer is coated on the outer surface of the inner layer, and the cross section of the outer layer is circular;
the ratio of the cross-sectional areas of the inner layer and the outer layer is 1: (0.55-0.65);
the inner layer is prepared from the following raw materials in parts by weight: 75-85 parts of polyhexamethylene adipamide, 18-23 parts of organic silicon modified polyurethane elastomer and 6-9 parts of light nano calcium carbonate;
the outer layer is prepared from the following raw materials in parts by weight: 55-65 parts of polyhexamethylene dodecanoylamide, 30-37 parts of pentanediamine polyadipate, 8-12 parts of phenylene ether silicone rubber, 2-2.5 parts of graphene fiber, 2.4-3 parts of glass fiber, 1.8-2.2 parts of nano silicon dioxide and 4-6 parts of oxidized polyethylene wax.
2. The breathable waterproof fabric according to claim 1, wherein the breathable waterproof fabric is prepared by blending high-performance composite fibers, cotton fibers, bamboo fibers and polytetrafluoroethylene fibers, knitting or weaving, and finishing by a three-proofing finishing agent; wherein the weight portions are as follows: 64 parts of high-performance composite fiber, 22.5 parts of cotton fiber, 14 parts of bamboo fiber and 8.5 parts of polytetrafluoroethylene fiber;
the ratio of the cross-sectional areas of the inner layer and the outer layer is 1: 0.6;
the inner layer is prepared from the following raw materials in parts by weight: 80 parts of polyhexamethylene adipamide, 20.5 parts of organosilicon modified polyurethane elastomer and 7.5 parts of light nano calcium carbonate;
the outer layer is prepared from the following raw materials in parts by weight: 60 parts of polyhexamethylene dodecanoylamide, 34 parts of pentanediamine adipate, 10 parts of phenylene ether silicone rubber, 2.3 parts of graphene fiber, 2.7 parts of glass fiber, 2 parts of nano silicon dioxide and 5 parts of oxidized polyethylene wax.
3. The breathable waterproof fabric according to claim 1, wherein the cross-sectional profile of the inner layer is in the shape of a regular pentagon.
4. The breathable waterproof fabric according to claim 1, wherein the inner layer and the outer layer each further comprise the following raw materials in parts by weight: 2-4 parts of an antioxidant.
5. The breathable waterproof fabric according to claim 1, wherein the inner layer and the outer layer each further comprise the following raw materials in parts by weight: 2-4 parts of a heat stabilizer.
6. The breathable waterproof fabric according to claim 1, wherein the inner layer and the outer layer each further comprise the following raw materials in parts by weight: 3-4 parts of a filler.
7. The breathable waterproof fabric according to claim 1, wherein the three-proofing finishing agent is Olifprobo 7713 three-proofing finishing agent.
8. The breathable waterproof fabric according to claim 1, wherein the filler is ultrafine pearl powder.
9. A method for preparing the breathable waterproof fabric according to any one of claims 1 to 8, characterized by comprising the following steps:
A. weighing the raw materials of the inner layer and the outer layer according to the parts by weight, respectively drying the raw materials of the inner layer and the outer layer until the water content of the raw materials of the inner layer and the outer layer is lower than 3 per thousand; then, respectively and uniformly mixing the raw materials of the inner layer and the outer layer for later use;
B. feeding the mixed inner layer raw materials into a single screw extruder to be melted into an inner layer mixed melt;
C. feeding the mixed outer layer raw materials into a double-screw extruder to be melted into an outer layer mixed melt;
D. the inner layer mixed melt and the outer layer mixed melt enter a composite spinning machine, are sprayed out from a composite spinneret plate after being subjected to melt distribution to form a strand silk with an inner layer structure and an outer layer structure, and are subjected to air blowing cooling, oiling, stretching and winding to obtain a high-performance composite fiber;
E. then blending the high-performance composite fiber, the cotton fiber, the bamboo fiber and the polytetrafluoroethylene fiber to obtain blended fiber;
F. the blended fiber is made into a breathable waterproof fabric primary product through a knitting or weaving process;
finishing the primary breathable waterproof fabric by adopting a three-proofing finishing agent to obtain the breathable waterproof fabric.
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