CN117818173A - Composite fabric with good crease-resistant effect and processing technology - Google Patents

Composite fabric with good crease-resistant effect and processing technology Download PDF

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Publication number
CN117818173A
CN117818173A CN202310679744.XA CN202310679744A CN117818173A CN 117818173 A CN117818173 A CN 117818173A CN 202310679744 A CN202310679744 A CN 202310679744A CN 117818173 A CN117818173 A CN 117818173A
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elastic
parts
layer
crease
fibers
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CN117818173B (en
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黄方义
杨建梅
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Beijing Fangshi Industry And Trade Co ltd
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Beijing Fangshi Industry And Trade Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered 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
    • B32B5/02Layered 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
    • B32B5/026Knitted fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10Methods 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/16Drying; Softening; Cleaning
    • B32B38/162Cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/16Drying; Softening; Cleaning
    • B32B38/164Drying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered 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
    • B32B5/02Layered 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
    • B32B5/06Layered 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 characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered 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
    • B32B5/02Layered 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
    • B32B5/08Layered 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 the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered 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
    • B32B5/22Layered 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
    • B32B5/24Layered 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
    • B32B5/26Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/055 or more layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/20All layers being fibrous or filamentary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0276Polyester fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0276Polyester fibres
    • B32B2262/0284Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0292Polyurethane fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/08Animal fibres, e.g. hair, wool, silk
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14Mixture of at least two fibres made of different materials
    • B32B2262/152Knitted fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/306Resistant to heat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/306Resistant to heat
    • B32B2307/3065Flame resistant or retardant, fire resistant or retardant
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/712Weather resistant
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/714Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145Rot proof, resistant to bacteria, mildew, mould, fungi
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/726Permeability to liquids, absorption
    • B32B2307/7265Non-permeable

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Woven Fabrics (AREA)

Abstract

The invention discloses a composite fabric with good crease-resistant effect and a processing technology, wherein a composite fabric main body comprises an elastic recovery layer, crease-resistant braiding layers are arranged at the top end and the bottom end of the elastic recovery layer, a breathable layer is further arranged on the upper crease-resistant braiding layer, and an inner liner is arranged below the lower crease-resistant braiding layer; the elastic recovery layer comprises elastic warp yarns and second elastic weft yarns, wherein the elastic warp yarns are wound with first elastic weft yarns through winding bends, the second elastic weft yarns are woven with the elastic warp yarns through winding bends, and the first elastic weft yarns and the second elastic weft yarns are distributed in a staggered mode. The invention can improve elasticity and crease resistance from the fabric material, can be convenient to recover by self when folds, such as folding or extrusion, are generated by matching with the memory fiber, ensures crease-resistant effect, and can improve crease-resistant effect of the fabric by soaking the finishing agent in the fabric preparation process.

Description

Composite fabric with good crease-resistant effect and processing technology
Technical Field
The invention relates to the technical field of fabrics, in particular to a composite fabric with good crease-resistant effect and a processing technology.
Background
The fiber fabric is made of natural fibers such as cotton, wool and the like or is blended with the natural fibers. The fibers are classified into natural fibers and artificial fibers, and the polyester fibers are artificial fibers, and are widely used in the clothing industry because they can be blended with other natural fibers.
The retrieved Chinese patent publication No. CN109868656A discloses an anti-wrinkling and antibacterial fabric which is prepared by finishing a fabric substrate by an anti-wrinkling and antibacterial finishing agent, wherein the anti-wrinkling and antibacterial finishing agent comprises the following components in parts by weight: 15-25 parts of 4, 5-dialdehyde thiazole modified double-end amino silicone oil, 10-15 parts of modified N-vinyl pyrrolidone-polyethylene glycol methacrylate-pentaerythritol monooleate-L-vinylglycine copolymer, 3-7 parts of sodium chloride, 25-35 parts of water, 1-4 parts of emulsifier and 4-8 parts of glycerol. The invention also discloses a preparation method of the crease-resistant antibacterial fabric. The crease-resistant antibacterial fabric disclosed by the invention has better comprehensive performance, more remarkable crease-resistant antibacterial effect and softer and smoother hand feeling.
Further, as disclosed in chinese patent publication No. CN112176726a, a method for preparing a wool fabric with strong touch with crease-resist function is disclosed, which comprises blending wool fiber, lycra fiber, soy protein fiber and polyurethane fiber, and finishing; the first time of the padding liquid contains 3.4 to 6.8 percent of sodium bisulphite and 1.2 to 3.4 percent of softener in parts by weight; the second time of the padding liquid contains 0.3 to 0.8 percent of crease-resist agent. Good strength and soft hand feeling of the fabric are maintained. The wool fabric has the advantages of excellent crease-resistant function, soft color, soft and plump hand feeling, ventilation and warmth retention, and is a high-quality textile material.
The anti-wrinkling effect of the fabric is achieved by adopting the finishing agent, but the anti-wrinkling effect of the fabric is poorer and poorer after wearing or washing with water along with the time, and the better anti-wrinkling effect can not be ensured for a longer time.
Disclosure of Invention
The invention aims to provide a composite fabric with good anti-wrinkle effect and a processing technology thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the composite fabric with good crease-resistant effect comprises an elastic recovery layer, wherein crease-resistant braiding layers are arranged at the top end and the bottom end of the elastic recovery layer, a breathable layer is further arranged on the upper crease-resistant braiding layer, and an inner liner layer is arranged below the lower crease-resistant braiding layer; the elastic recovery layer comprises elastic warp yarns and second elastic weft yarns, wherein the elastic warp yarns are wound with first elastic weft yarns through winding bends, the second elastic weft yarns are woven with the elastic warp yarns through winding bends, and the first elastic weft yarns and the second elastic weft yarns are distributed in a staggered mode.
Preferably, the elastic warp yarns, the first elastic weft yarns, the second elastic weft yarns and the winding bends are all made of novel polyurethane fibers, and the novel polyurethane fibers comprise the following raw materials in parts by weight:
38-45 parts of 4,4' -diphenylmethane diisocyanate, 180-200 parts of polytetrahydrofuran ether glycol, 2.5-5 parts of triethanolamine, 2.5-5 parts of diethylene glycol, 50-80 parts of modified polyamide fibers, 50-60 parts of methylol melamine, 400-500 parts of organic solvent and 2-5 parts of carbon fiber powder.
Preferably, the modified polyamide fiber is selected from one of nylon 6 or nylon 66;
preferably, the organic solvent is one or two of dimethylformamide or dimethylacetamide;
preferably, the polytetrahydrofuran ether glycol has a molecular weight of 1800-2000;
preferably, the novel polyurethane fiber is prepared by the steps of:
s101: weighing all raw materials required by the novel polyurethane fiber according to the parts by weight;
s102: adding polytetrahydrofuran polyol and 4,4' -diphenylmethane diisocyanate into a reaction vessel, heating to 80-85 ℃ and reacting for 0.5-1h; obtaining a prepolymer;
s103: adding the prepolymer obtained in the step S102 into an organic solvent, dissolving uniformly, heating to (60+/-5) DEG C, adding triethanolamine and diethylene glycol, adding modified polyamide fibers and methylolmelamine under the protection of N2, and stirring at a high speed of 800-1200 r/min for 2-2.5h to obtain modified polyurethane;
s104: adding carbon fiber powder into the modified polyurethane in the step S103, fully stirring and mixing to obtain a blend, granulating and drying the blend, and spinning by a melt spinning machine to obtain the novel polyurethane fiber.
Further, the modification method of the modified polyamide fiber is as follows: the pH of the 1.0g/L bromelain solution was adjusted to 7.0 with 0.2mol/L sodium bicarbonate and 0.1mol/L citric acid, and the polyamide fiber was treated at 55℃for 25-30h with a bath ratio of 1:30.
According to another aspect of the invention, a processing technology of a composite fabric with good anti-wrinkle effect is provided, which comprises the following steps:
s01, manufacturing an elastic recovery layer and an anti-wrinkling weaving layer, weaving by a weaving machine, wherein the warp and weft yarns of the elastic recovery layer are all woven by adopting novel polyurethane fibers, the warp and weft yarns of the anti-wrinkling weaving layer are all woven by combining modified polyether ester elastic fibers and memory fibers into a composite strand, and the memory fibers are manufactured by shape memory polyurethane;
step S02, connecting the braided elastic recovery layer and the crease-resistant braiding layer into a whole through a hot pressing or needling process, and then putting the integrated material into a finishing agent for padding, drying, washing with water, drying for the second time, and shaping to obtain a crease-resistant fabric base layer;
step S03, knitting an inner liner layer and a ventilation layer through a knitting machine, wherein warp and weft yarns of the inner liner layer are formed by silk knitting, and warp and weft yarns of the ventilation layer are formed by terylene fiber knitting, and are connected with a crease-resistant fabric base layer into a whole through a hot pressing or needling process;
step S04, washing with water at 50-70 ℃, putting into a drying box, drying at 95-110 ℃, preshrinking by a preshrinking machine, and shaping to obtain the composite fabric.
Preferably, the finishing agent comprises the following raw materials in parts by weight: 80-100 parts of water-soluble polyurethane emulsion, 15-25 parts of chitosan, 4-8 parts of morning glory extract, 3-4 parts of oxalis extract, 3-7 parts of dioctyl sodium sulfosuccinate, 2-3 parts of polyhexamethylene guanidine phosphate and 2-5 parts of tungsten disulfide.
Preferably, the water-soluble polyurethane emulsion is a cationic water-soluble polyurethane emulsion.
Preferably, the water-soluble polyurethane emulsion is a nonionic water-soluble polyurethane emulsion.
Preferably, the preparation steps of the finishing agent are as follows:
s0201: adding tungsten disulfide into the oxalis extract, and adding into a beaker of 50g deionized water; the beaker is placed in an ultrasonic cell crusher, the ultrasonic power is set to be 300W, and the ultrasonic time is set to be 2h. Centrifuging the solution after the ultrasonic treatment to obtain an oxalis extract, and stripping the nano tungsten disulfide aqueous solution (the mass concentration of the oxalis extract-tungsten disulfide is 2%);
s0202: uniformly mixing 80-100 parts of water-soluble polyurethane emulsion, 15-25 parts of chitosan, 4-8 parts of morning glory extract, 3-7 parts of dioctyl sodium sulfosuccinate, 2-3 parts of polyhexamethylene guanidine phosphate and the oxalis extract-tungsten disulfide solution obtained in the step S0201, heating and stirring for 20-30min, wherein the temperature is 85-90 ℃ and the rotating speed is 200-400r/min;
s0203: naturally cooling to obtain the finishing agent.
Preferably, the warp yarns and weft yarns in the crease-resistant braiding layer are combined into a composite strand by modified polyether ester elastic fibers and memory fibers, and the memory fibers are manufactured by shape memory polyurethane.
Preferably, the number of the modified polyether ester elastic fibers is 10-20, and the memory fiber is one and arranged in the center.
Preferably, the modified polyetherester elastic fiber is prepared by the following method:
step S201: slicing the polyether ester elastic fiber, grinding the sliced polyether ester elastic fiber into powder, adding 5-8% of nano titanium dioxide powder into the polyether ester elastic fiber powder, and fully mixing and stirring to obtain a mixture A;
step S202: adding the obtained mixture A into a screw extruder, extruding, and granulating to obtain mixed master batch;
step S203: and (3) adding the mixed master batch in the step (S202) into a melt spinning solution of the polyether ester elastic fiber, and spinning by using a melt spinning machine to prepare the modified polyether ester elastic fiber.
Compared with the prior art, the invention has the beneficial effects that:
(1) The elasticity recovery layer and the crease-resistant weaving layer are matched with each other, so that elasticity and crease resistance of the fabric material can be improved, and the matched memory fiber can be recovered by itself conveniently when the fabric is folded or extruded and the like, and the fabric is pulled transversely, longitudinally or obliquely, so that the crease-resistant effect is ensured, and meanwhile, the finishing agent is soaked in the fabric preparation process, so that the crease-resistant effect of the fabric can be improved;
(2) By modifying the spun yarn in the elastic recovery layer, the tensile strength, water resistance, weather resistance, heat resistance and flame retardance of the elastic recovery layer can be effectively improved. The protease is modified to catalyze the decomposition of amide bonds to form hydrophilic carboxyl (-COOH), and micro-coarse structures can be formed on the surfaces of the fibers through the degradation, on one hand, the carboxyl can react with triethanolamine in a system, and meanwhile, the carboxyl can also react with hydroxyl in methylolmelamine to generate esterification reaction similar to acid and alcohol, and the alcohol hydroxyl of the triethanolamine and the methylolmelamine are subjected to polycondensation reaction to generate methylene ether bonds and methylene bonds, so that polyamide fibers and methylolmelamine are introduced into polyurethane elastic fibers through chemical bonds, the mechanical properties, heat resistance and durability of the modified polyurethane fibers are improved, and the flame retardance of the polyurethane fibers is improved.
(3) The polyether ester elastic fiber in the crease-resistant woven layer is modified, the ultraviolet shielding effect is strong by adding nano titanium dioxide, the dispersibility and the weather resistance are good, and the Ti0 is enabled to be under the effect of ultraviolet rays in sunlight or lamplight 2 The active catalyst can activate and generate free radicals with high catalytic activity, can generate strong photooxidation and reduction capability, can catalyze and photolyze various organic matters such as formaldehyde and partial inorganic matters attached to the surface of an object, and improves the antibacterial effect when the active catalyst is worn;
(4) The elastic recovery layer is woven into a net structure, so that the strength of the subsequent composite fabric can be improved, the high rebound effect after deformation can be ensured, automatic recovery can be performed when deformation and wrinkling occur, and further the crease-resistant effect is ensured.
(5) The fabric has excellent waterproof performance, crease resistance and antibacterial property by optimizing the formula of the finishing agent. The action mechanism is as follows: 1) The morning glory extractive solution contains limonene, tricyclic terpene, beta-pinene, methyl 2-methylbutyrate, methyl benzoate, etc.; the extractive solution of herba Oxalidis Corniculatae contains palmitic acid, thymine, 6,7, 10-3 hydroxy-8-octadecenoic acid, ethyl gallate, vanillic acid (9), syringic acid, methyl-3-hydroxy-5- (p-hydroxyphenyl) valerate, protocatechuic acid, cuumegagagmane I, quercetin leptiepimol D, vitexin, quercetin-3-O-alpha-L-rhamnoside, spinosin, 2' -O-xyl-powertisi, staphylionoside D, L-rhamnose, aragitol and apigenin-7-O-beta-D-glucoside; after being mixed with chitosan, the polybasic acid can generate covalent bonds with hydroxyl groups on fibers and chitosan, so that the fastness of the chitosan is improved, and the crease-resistant and antibacterial finishing of the fabric is also solved; 2) The acidic substance in the oxalis extract can be converted into stable nano dispersion tablet by ultrasonic cell disruption machine, and dispersed in the solution. The bonding energy between the acidic substances in the oxalis extract and the tungsten disulfide is larger than that of two adjacent layers of tungsten disulfide, so that when the ultrasonic cell crusher breaks the weak van der Waals force action between the two adjacent layers, the acidic substances in the oxalis extract are adsorbed on the tungsten disulfide nano-sheets at a speed faster than the speed of re-stacking and gathering of the tungsten disulfide nano-sheets. The acidic substance aqueous solution in the oxalis extract liquid is stripped off tungsten disulfide under the action of an ultrasonic cell breaker, and the acidic substance in the oxalis extract liquid can be closely adsorbed on the surface of a tungsten disulfide nanosheet layer in the stripping process, so that the stripped tungsten disulfide has good dispersibility in the water-soluble polyurethane emulsion, hydroxyl groups in the oxalis extract liquid can form a crosslinked network structure with the water-soluble polyurethane molecular chain segments, the tungsten disulfide is introduced into the molecular chain segments, the surface roughness of the water-soluble polyurethane emulsion particles is increased, the polyhexamethylene guanidine phosphate is enriched around the water-soluble polyurethane emulsion particles, and simultaneously, hydroxyl groups, carboxyl groups and the like in the oxalis chemically reacted with-NH 2 and-NH-in the polyhexamethylene guanidine phosphate to fix the same on the molecular chain, so that the adhesive has excellent antibacterial property, and meanwhile, the addition of the tungsten disulfide reduces the friction coefficient on the surface of the fabric, reduces the time of water staying in the fabric, and promotes the improvement of the waterproof performance of the fabric.
Drawings
FIG. 1 is a cross-sectional view of a composite fabric with good anti-wrinkle effect and a composite fabric in a processing technology;
FIG. 2 is a schematic diagram of a part of the structure of an elastic recovery layer in a composite fabric with good anti-wrinkle effect and a processing technology;
FIG. 3 is a cross-sectional view of warp and weft yarns in a crease-resistant woven layer in a composite fabric with good crease-resistant effect and a processing technology according to the invention.
In the figure: 1. a composite fabric main body; 2. a ventilation layer; 3. a crease-resistant knit layer; 4. an elastic recovery layer; 401. elastic warp yarns; 402. a first elastic weft yarn; 403. a second elastic weft yarn; 404. winding and bending; 5. an inner liner layer; 6. modified polyether ester elastic fiber; 7. a memory fiber.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, an embodiment of the present invention is provided: a composite fabric with good anti-wrinkle effect and a processing technology,
the composite fabric with good crease resistance effect comprises a main body 1 and an elastic recovery layer 4, wherein crease-resistant braiding layers 3 are arranged at the top end and the bottom end of the elastic recovery layer 4, a breathable layer 2 is further arranged on the upper crease-resistant braiding layer 3, and an inner liner 5 is arranged below the lower crease-resistant braiding layer 3;
the processing technology of the composite fabric with good anti-wrinkle effect comprises the following steps:
step S01, manufacturing an elastic recovery layer 4 and a crease-resistant weaving layer 3, weaving by a weaving machine, wherein the warp and weft yarns of the elastic recovery layer 4 are all woven by adopting novel polyurethane fibers, the elastic recovery layer 4 can be woven by adopting a winding mode in the figure 2, the warp and weft yarns of the crease-resistant weaving layer 3 are all woven by combining modified polyether ester elastic fibers 6 and memory fibers 7 into a composite strand, and the memory fibers 7 are manufactured by adopting shape memory polyurethane;
step S02, connecting the woven elastic recovery layer 4 and the crease-resistant woven layer 3 into a whole through a hot pressing or needling process, and then putting the integrated parts into a finishing agent for padding, drying, washing with water, drying for the second time, and shaping to obtain a crease-resistant fabric base layer;
step S03, knitting the inner liner 5 and the breathable layer 2 through a knitting machine, knitting warp and weft yarns of the inner liner 5 by silk, knitting warp and weft yarns of the breathable layer 2 by polyester fibers, and connecting the warp and weft yarns with the crease-resistant fabric base layer into a whole through a hot pressing or needling process;
step S04, washing with water at 50-70 ℃, putting into a drying box, drying at 95-110 ℃, preshrinking by a preshrinking machine, and shaping to obtain the composite fabric.
Further, the finishing agent comprises the following raw materials in parts by weight: 80-100 parts of water-soluble polyurethane, 15-25 parts of chitosan, 4-8 parts of morning glory extract, 3-4 parts of oxalis extract, 3-7 parts of sodium dioctyl sulfosuccinate, 2-3 parts of polyhexamethylene guanidine phosphate and 2-5 parts of tungsten disulfide;
for the breathable layer 2, the breathable layer 2 can be used as a summer clothing fabric, the crease-resistant effect is ensured, the breathable effect is ensured, in order to increase the breathable effect, the breathable layer 2 is not needed, the breathable hole is directly formed in the composite fabric, and the veil is added on the breathable hole, so that the veil can have a certain shielding effect, and the breathable effect can be better ensured;
the breathable layer 2 can be replaced by a waterproof layer (the waterproof layer can be realized by adopting a coating or waterproof fabric mode, and a more mature technology is omitted here), so that the waterproof layer can be used for fabrics such as outdoor wear and the like, and the waterproof effect is ensured;
when the elastic recovery layer 4 is used as a fabric in winter, a down layer can be added in the middle of the structure similar to a fishing net, so that high elasticity is ensured, meanwhile, the heat preservation effect can be ensured, and when the elastic recovery layer 4 is used as a fabric of a sofa, an anti-oil-stain, hydrophobic and antibacterial functional layer can be added, so that the service life and the surface cleanliness of the sofa are ensured;
the elastic restoring layer 4 includes an elastic warp yarn 401 and a second elastic weft yarn 403, the elastic warp yarn 401 is wound with a first elastic weft yarn 402 by a winding turn 404, the second elastic weft yarn 403 is woven with the elastic warp yarn 401 by a winding turn 404, and the first elastic weft yarn 402 and the second elastic weft yarn 403 are staggered.
In the case of the above-mentioned weaving method, after the composite fabric is formed, when the composite fabric is pulled along the direction of the elastic warp yarn 401, referring to fig. 2, the composite fabric can be quickly reset under the cooperation of the elasticity of the elastic warp yarn 401 itself and the winding bends 404 on the elastic warp yarn 401, and can be quickly restored under the elasticity of the winding bends 404 on the first elastic weft yarn 402, the second elastic weft yarn 403 and the second elastic weft yarn 403 when stretched along the direction of the first elastic weft yarn 402, and can be quickly reset under the whole cooperation when stretched obliquely, so that the anti-wrinkling weaving layer 3 can be matched to achieve a better anti-wrinkling effect;
for the knitting mode, different knitting modes can be adopted according to the actual use of the elastic recovery layer 4, two first elastic weft yarns 402 can be adopted between two second elastic weft yarns 403, or the mode that the weft yarns 403 adopt elastic warp yarns 401 is adopted, and the elastic warp yarns 401 adopt the knitting mode that weft yarns are distributed in a staggered manner, so that the elastic recovery layer is used for different purposes.
Further, the elastic warp yarn 401, the first elastic weft yarn 402, the second elastic weft yarn 403 and the winding bend 404 are all made of novel polyurethane fibers, and the novel polyurethane fibers comprise the following raw materials in parts by weight:
38-45 parts of 4,4' -diphenylmethane diisocyanate, 180-200 parts of polytetrahydrofuran ether glycol, 2.5-5 parts of triethanolamine, 2.5-5 parts of diethylene glycol, 50-80 parts of modified polyamide fibers, 50-60 parts of methylol melamine, 400-500 parts of organic solvent and 2-5 parts of carbon fiber powder.
Preferably, the modified polyamide fiber is selected from one of nylon 6 or nylon 66;
preferably, the organic solvent is one or two of dimethylformamide or dimethylacetamide;
preferably, the polytetrahydrofuran ether glycol has a molecular weight of 1800-2000;
preferably, the novel polyurethane fiber is prepared by the steps of:
s101: weighing all raw materials required by the novel polyurethane fiber according to the parts by weight;
s102: adding polytetrahydrofuran polyol and 4,4' -diphenylmethane diisocyanate into a reaction vessel, heating to 80 ℃ and reacting for 0.5h; obtaining a prepolymer;
s103: adding the prepolymer obtained in the step S102 into an organic solvent, dissolving uniformly, heating to (60+/-5) DEG C, adding triethanolamine and diethylene glycol, adding modified polyamide fibers and methylolmelamine under the protection of N2, and stirring at a high speed of 800r/min for 2 hours to obtain modified polyurethane;
s104: adding carbon fiber powder into the modified polyurethane in the step S103, fully stirring and mixing to obtain a blend, granulating and drying the blend, and spinning by a melt spinning machine to obtain the novel polyurethane fiber.
Further, the modification method of the modified polyamide fiber is as follows: the pH of the 1.0g/L bromelain solution was adjusted to 7.0 with 0.2mol/L sodium bicarbonate and 0.1mol/L citric acid, and the polyamide fiber was treated at 55℃for 25-30h with a bath ratio of 1:30.
Further, the warp yarns and the weft yarns in the crease-resistant woven layer 3 are combined into a composite yarn by the modified polyether ester elastic fibers 6 and the memory fibers 7, and the memory fibers 7 are manufactured by shape memory polyurethane.
Further, the number of the modified polyether ester elastic fibers 6 is 10-20, and the memory fibers 7 are one and are arranged in the center.
Further, the modified polyether ester elastic fiber is prepared by the following method:
step S201: slicing the polyether ester elastic fiber, grinding the sliced polyether ester elastic fiber into powder, adding 5-8% of nano titanium dioxide powder into the polyether ester elastic fiber powder, and fully mixing and stirring to obtain a mixture A;
step S202: adding the obtained mixture A into a screw extruder, extruding, and granulating to obtain mixed master batch;
step S203: and (3) adding the mixed master batch in the step (S202) into a melt spinning solution of the polyether ester elastic fiber, and spinning by using a melt spinning machine to prepare the modified polyether ester elastic fiber.
The nano titanium dioxide introduced into the polyether ester elastic fiber has strong ultraviolet shielding effect, good dispersibility and weather resistance, and Ti0 is enabled under the effect of ultraviolet in sunlight or lamplight 2 The active and the generation of free radical with high catalytic activity can generate strong photooxidation and reduction capability, and can catalyze and photolyze various organic matters such as formaldehyde and partial inorganic matters attached to the surface of an object, thereby improving the antibacterial effect when the object is worn.
Example 1
The elastic warp yarn 401, the first elastic weft yarn 402, the second elastic weft yarn 403 and the winding bend 404 are all made of novel polyurethane fibers, and the novel polyurethane fibers comprise the following raw materials in parts by weight:
38 parts of 4,4' -diphenylmethane diisocyanate, 180 parts of polytetrahydrofuran ether glycol, 2.5 parts of triethanolamine, 2.5 parts of diethylene glycol, 50 parts of modified polyamide fiber, 50 parts of methylolmelamine, 400 parts of organic solvent and 2 parts of carbon fiber powder.
Preferably, the modified polyamide fiber is selected from nylon 6;
preferably, the organic solvent is dimethylformamide;
preferably, the polytetrahydrofuran ether glycol has a molecular weight of 1800;
preferably, the novel polyurethane fiber is prepared by the steps of:
s101: weighing all raw materials required by the novel polyurethane fiber according to the parts by weight;
s102: adding polytetrahydrofuran polyol and 4,4' -diphenylmethane diisocyanate into a reaction vessel, heating to 80-85 ℃ and reacting for 0.5-1h; obtaining a prepolymer;
s103: adding the prepolymer obtained in the step S102 into an organic solvent, dissolving uniformly, heating to (60+/-5) DEG C, adding triethanolamine and diethylene glycol, adding modified polyamide fibers and methylolmelamine under the protection of N2, and stirring at a high speed of 800-1200 r/min for 2-2.5h to obtain modified polyurethane;
s104: adding carbon fiber powder into the modified polyurethane in the step S103, fully stirring and mixing to obtain a blend, granulating and drying the blend, and spinning by a melt spinning machine to obtain the novel polyurethane fiber.
The modification method of the modified polyamide fiber comprises the following steps: the pH of the 1.0g/L bromelain solution was adjusted to 7.0 with 0.2mol/L sodium bicarbonate and 0.1mol/L citric acid, and the polyamide fiber was treated at 55℃for 25 hours with a bath ratio of 1:30.
Preferably, the warp yarns and weft yarns in the crease-resistant braiding layer 3 are combined into a composite yarn by modified polyether ester elastic fibers 6 and memory fibers 7, and the memory fibers 7 are manufactured by shape memory polyurethane.
Preferably, the number of the modified polyether ester elastic fibers 6 is 10, and the memory fibers 7 are one and are arranged in the center.
Preferably, the modified polyetherester elastic fiber is prepared by the following method:
step S201: slicing the polyether ester elastic fiber, grinding the sliced polyether ester elastic fiber into powder, adding 5% of nano titanium dioxide powder into the polyether ester elastic fiber powder, and fully mixing and stirring to obtain a mixture A;
step S202: adding the obtained mixture A into a screw extruder, extruding, and granulating to obtain mixed master batch;
step S203: and (3) adding the mixed master batch in the step (S202) into a melt spinning solution of the polyether ester elastic fiber, and spinning by using a melt spinning machine to prepare the modified polyether ester elastic fiber.
Example 2
The elastic warp yarn 401, the first elastic weft yarn 402, the second elastic weft yarn 403 and the winding bend 404 are all made of novel polyurethane fibers, and the novel polyurethane fibers comprise the following raw materials in parts by weight:
45 parts of 4,4' -diphenylmethane diisocyanate, 200 parts of polytetrahydrofuran ether glycol, 5 parts of triethanolamine, 5 parts of diethylene glycol, 80 parts of modified polyamide fibers, 60 parts of methylol melamine, 500 parts of an organic solvent and 5 parts of carbon fiber powder.
Preferably, the modified polyamide fiber is selected from one of chinlon 66;
preferably, in the organic solvent dimethylacetamide;
preferably, the polytetrahydrofuran ether glycol has a molecular weight of 2000;
preferably, the novel polyurethane fiber is prepared by the steps of:
s101: weighing all raw materials required by the novel polyurethane fiber according to the parts by weight;
s102: adding polytetrahydrofuran polyol and 4,4' -diphenylmethane diisocyanate into a reaction vessel, heating to 85 ℃, and reacting for 1h to obtain a prepolymer;
s103: adding the prepolymer obtained in the step S102 into an organic solvent, dissolving uniformly, heating to (60+/-5) DEG C, adding triethanolamine and diethylene glycol, adding modified polyamide fibers and methylolmelamine under the protection of N2, and stirring at a high speed of 1200r/min for 2.5 hours to obtain modified polyurethane;
s104: adding carbon fiber powder into the modified polyurethane in the step S103, fully stirring and mixing to obtain a blend, granulating and drying the blend, and spinning by a melt spinning machine to obtain the novel polyurethane fiber.
The modification method of the modified polyamide fiber comprises the following steps: the pH of the 1.0g/L bromelain solution was adjusted to 7.0 with 0.2mol/L sodium bicarbonate and 0.1mol/L citric acid, and the polyamide fiber was treated at 55℃for 27h with a bath ratio of 1:30. .
Preferably, the warp yarns and weft yarns in the crease-resistant braiding layer 3 are combined into a composite yarn by modified polyether ester elastic fibers 6 and memory fibers 7, and the memory fibers 7 are manufactured by shape memory polyurethane.
Preferably, the number of the modified polyether ester elastic fibers 6 is 15, and the memory fibers 7 are one and are arranged in the center.
Preferably, the modified polyetherester elastic fiber is prepared by the following method:
step S201: slicing the polyether ester elastic fiber, grinding the sliced polyether ester elastic fiber into powder, adding 6.5% of nano titanium dioxide powder into the polyether ester elastic fiber powder, and fully mixing and stirring to obtain a mixture A;
step S202: adding the obtained mixture A into a screw extruder, extruding, and granulating to obtain mixed master batch;
step S203: and (3) adding the mixed master batch in the step (S202) into a melt spinning solution of the polyether ester elastic fiber, and spinning by using a melt spinning machine to prepare the modified polyether ester elastic fiber.
Example 3
The elastic warp yarn 401, the first elastic weft yarn 402, the second elastic weft yarn 403 and the winding bend 404 are all made of novel polyurethane fibers, and the novel polyurethane fibers comprise the following raw materials in parts by weight:
40 parts of 4,4' -diphenylmethane diisocyanate, 190 parts of polytetrahydrofuran ether glycol, 3 parts of triethanolamine, 3 parts of diethylene glycol, 68 parts of modified polyamide fibers, 55 parts of methylol melamine, 450 parts of organic solvent and 3.5 parts of carbon fiber powder.
Preferably, the modified polyamide fiber is selected from nylon 6;
preferably, the organic solvent is dimethylformamide;
preferably, the polytetrahydrofuran ether glycol has a molecular weight of 1800;
preferably, the novel polyurethane fiber is prepared by the steps of:
s101: weighing all raw materials required by the novel polyurethane fiber according to the parts by weight;
s102: adding polytetrahydrofuran polyol and 4,4' -diphenylmethane diisocyanate into a reaction vessel, heating to 85 ℃ and reacting for 1h; obtaining a prepolymer;
s103: adding the prepolymer obtained in the step S102 into an organic solvent, dissolving uniformly, heating to (60+/-5) DEG C, adding triethanolamine and diethylene glycol, adding modified polyamide fibers and methylolmelamine under the protection of N2, and stirring at a high speed of 1200r/min for 2.3 hours to obtain modified polyurethane;
s104: adding carbon fiber powder into the modified polyurethane in the step S103, fully stirring and mixing to obtain a blend, granulating and drying the blend, and spinning by a melt spinning machine to obtain the novel polyurethane fiber.
The modification method of the modified polyamide fiber comprises the following steps: the pH of the 1.0g/L bromelain solution was adjusted to 7.0 with 0.2mol/L sodium bicarbonate and 0.1mol/L citric acid, and the polyamide fiber was treated at 55℃for 30 hours with a bath ratio of 1:30.
Preferably, the warp yarns and weft yarns in the crease-resistant braiding layer 3 are combined into a composite yarn by modified polyether ester elastic fibers 6 and memory fibers 7, and the memory fibers 7 are manufactured by shape memory polyurethane.
Preferably, the number of the modified polyether ester elastic fibers 6 is 20, and the memory fibers 7 are one and are arranged in the center.
Preferably, the modified polyetherester elastic fiber is prepared by the following method:
step S201: slicing the polyether ester elastic fiber, grinding the sliced polyether ester elastic fiber into powder, adding 8% of nano titanium dioxide powder into the polyether ester elastic fiber powder, and fully mixing and stirring to obtain a mixture A;
step S202: adding the obtained mixture A into a screw extruder, extruding, and granulating to obtain mixed master batch;
step S203: and (3) adding the mixed master batch in the step (S202) into a melt spinning solution of the polyether ester elastic fiber, and spinning by using a melt spinning machine to prepare the modified polyether ester elastic fiber.
Comparative example 1
The elastic recovery layer 4 is woven by polyurethane fibers without modifying warp and weft yarns, and the other is the same.
Comparative example 2
The crease-resistant knitted layer 3 is knitted by using only the memory fiber 7, that is, the shape memory polyurethane, and the other is the same.
Comparative example 3
The elastic recovery layer 4 is woven by polyurethane fibers without modifying warp and weft yarns, and the crease-resistant woven layer 3 is woven by only memory fibers 7, that is, shape memory polyurethane, and the other is the same.
Comparative example 4
The composition of the finishing agent used in step S02 is as follows: 80-100 parts of water-soluble polyurethane, 3-7 parts of sulfonated dioctyl succinate sodium salt and 2-3 parts of polyhexamethylene guanidine phosphate; other things being identical
The preparation method comprises the following steps: uniformly mixing 80-100 parts of water-soluble polyurethane emulsion, 3-7 parts of sodium dioctyl sulfosuccinate and 2-3 parts of polyhexamethylene guanidine phosphate, heating and stirring for 20-30min at 85-90 ℃ at a rotating speed of 200-400r/min; naturally cooling to obtain the finishing agent.
The composite fabrics of the above examples and comparative examples 1 to 3 were subjected to performance tests such as strength, shrinkage and elastic recovery, and the data are shown in table 1, in which the tear strength was: testing according to ASTM D1424-21; tensile strength: testing according to ASTM D5034-21; shrinkage ratio: testing was performed according to AATCC 135-2018 (t 1) IIIA (ii) 3X; elastic recovery: the elongation at set force was measured according to ASTM D3107-07 (2019) for 30min, recovery at set length for 30min, residual elongation at set length for 30 min.
The antibacterial performance test was performed on the samples of example 1 and example 4, and the antibacterial performance test was performed according to the method for testing antibacterial performance of appendix A powder of GB/T21510-2008 nanometer inorganic Material antibacterial performance test method, vibration method. The bacteria for detection are as follows: coli ATCC25922, staphylococcus aureus ATCC6538, and the test data are shown in Table 2.
TABLE 1
TABLE 2
Name of the name Example 1 Comparative example 1
Staphylococcus aureus (%) 95.7 85.1
Coli (%) 96.3 87.2
After 100 washes, staphylococcus aureus (%) 92.3 50.6
After 100 times of water washing, escherichia coli (%) 92.8 45.6
According to the test, the elastic recovery layer 4 and the crease-resistant woven layer 3 are arranged, so that the tensile strength and the elasticity of the composite fabric can be effectively improved, the crease-resistant effect is effectively improved, good recovery rate can be achieved when the fabric is folded or extruded, the surface smoothness can be further ensured, the fabric has excellent antibacterial performance through the formula optimization of the finishing agent, and the antibacterial effect is still high even after water washing.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. A composite fabric with good crease-resistant effect is characterized in that: the composite fabric main body (1) comprises an elastic recovery layer (4), wherein crease-resistant braiding layers (3) are respectively arranged at the top end and the bottom end of the elastic recovery layer (4), a breathable layer (2) is further arranged on the crease-resistant braiding layers (3) at the top end of the elastic recovery layer, and an inner liner layer (5) is arranged under the crease-resistant braiding layers (3) at the bottom end of the elastic recovery layer;
the elastic recovery layer (4) comprises elastic warp yarns (401) and second elastic weft yarns (403), wherein the elastic warp yarns (401) are wound with first elastic weft yarns (402) through winding bends (404), the second elastic weft yarns (403) are woven with the elastic warp yarns (401) through winding bends (404), and the first elastic weft yarns (402) and the second elastic weft yarns (403) are distributed in a staggered mode.
2. The composite fabric with good anti-wrinkle effect according to claim 1, wherein the composite fabric is characterized in that: the elastic warp yarn (401), the first elastic weft yarn (402), the second elastic weft yarn (403) and the winding bend (404) are all made of novel polyurethane fibers, and the novel polyurethane fibers comprise the following raw materials in parts by mass:
38-45 parts of 4,4' -diphenylmethane diisocyanate, 180-200 parts of polytetrahydrofuran ether glycol, 2.5-5 parts of triethanolamine, 2.5-5 parts of diethylene glycol, 50-80 parts of modified polyamide fibers, 50-60 parts of methylol melamine, 400-500 parts of organic solvent and 2-5 parts of carbon fiber powder.
3. The composite fabric with good anti-wrinkle effect according to claim 2, wherein the composite fabric is characterized in that: the molecular weight of the polytetrahydrofuran ether glycol is 1800-2000.
4. The composite fabric with good anti-wrinkle effect according to claim 2, wherein the modification method of the modified polyamide fiber is as follows: the pH of the 1.0g/L bromelain solution was adjusted to 7.0 with 0.2mol/L sodium bicarbonate and 0.1mol/L citric acid, and the polyamide fiber was treated at 55℃for 25-30h with a bath ratio of 1:30.
5. The novel polyurethane fiber according to claim 2, wherein the novel polyurethane fiber is prepared by the following steps:
s101: weighing all raw materials required by the novel polyurethane fiber according to the parts by weight;
s102: adding polytetrahydrofuran polyol and 4,4' -diphenylmethane diisocyanate into a reaction vessel, heating to 80-85 ℃ and reacting for 0.5-1h; obtaining a prepolymer;
s103: adding the prepolymer obtained in the step S102 into an organic solvent, dissolving uniformly, heating to (60+/-5) DEG C, adding triethanolamine and diethylene glycol, adding modified polyamide fibers and methylolmelamine under the protection of N2, and stirring at a high speed of 800-1200 r/min for 2-2.5h to obtain modified polyurethane;
s104: adding carbon fiber powder into the modified polyurethane in the step S103, fully stirring and mixing to obtain a blend, granulating and drying the blend, and spinning by a melt spinning machine to obtain the novel polyurethane fiber.
6. The processing technology of the composite fabric with good anti-wrinkle effect is characterized by comprising the following steps of:
s01, manufacturing an elastic recovery layer (4) and an anti-wrinkling weaving layer (3), weaving by a weaving machine, wherein the warps and the wefts of the elastic recovery layer (4) are all woven by adopting novel polyurethane fibers, the warps and the wefts of the anti-wrinkling weaving layer (3) are all woven by combining modified polyether ester elastic fibers (6) and memory fibers (7) into a composite strand, and the memory fibers (7) are manufactured by shape memory polyurethane;
step S02, connecting the braided elastic recovery layer (4) and the crease-resistant braiding layer (3) into a whole through a hot pressing or needling process, and then putting the integrated materials into a finishing agent for padding, drying, washing with water, drying for the second time, and shaping to obtain a crease-resistant fabric base layer;
step S03, knitting an inner liner (5) and a ventilation layer (2) through a knitting machine, knitting warp and weft yarns of the inner liner (5) by silk, knitting warp and weft yarns of the ventilation layer (2) by polyester fibers, and connecting the warp and weft yarns with a crease-resistant fabric base layer into a whole through a hot pressing or needling process;
step S04, washing with water at 50-70 ℃, putting into a drying box, drying at 95-110 ℃, preshrinking by a preshrinking machine, and shaping to obtain the composite fabric.
7. The processing technology of the composite fabric with good anti-wrinkle effect according to claim 6, which is characterized in that: the finishing agent comprises the following raw materials in parts by weight: 80-100 parts of water-soluble polyurethane, 15-25 parts of chitosan, 4-8 parts of morning glory extract, 3-4 parts of oxalis extract, 3-7 parts of dioctyl sodium sulfosuccinate, 2-3 parts of polyhexamethylene guanidine phosphate and 2-5 parts of tungsten disulfide.
8. The processing technology of the composite fabric with good anti-wrinkle effect according to claim 6, which is characterized in that: warp yarns and weft yarns in the crease-resistant woven layer (3) are combined into a composite yarn by modified polyether ester elastic fibers (6) and memory fibers (7), and the memory fibers (7) are manufactured by shape memory polyurethane.
9. The processing technology of the composite fabric with good anti-wrinkle effect according to claim 8, which is characterized in that: the number of the modified polyether ester elastic fibers (6) is 10-20, and the memory fibers (7) are one and are arranged in the center.
10. The processing technology of the composite fabric with good anti-wrinkle effect according to claim 9, which is characterized in that: the modified polyether ester elastic fiber is prepared by the following method:
step S201: slicing the polyether ester elastic fiber, grinding the sliced polyether ester elastic fiber into powder, adding 5-8% of nano titanium dioxide powder into the polyether ester elastic fiber powder, and fully mixing and stirring to obtain a mixture A;
step S202: adding the obtained mixture A into a screw extruder, extruding, and granulating to obtain mixed master batch;
step S203: and (3) adding the mixed master batch in the step (S202) into a melt spinning solution of the polyether ester elastic fiber, and spinning by using a melt spinning machine to prepare the modified polyether ester elastic fiber.
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CN216753592U (en) * 2021-11-19 2022-06-17 宁波博洋服饰集团有限公司 Fireproof and crease-resistant functional garment
CN115897028A (en) * 2022-12-01 2023-04-04 启东市凤鸣纺织有限公司 All-cotton elastic fabric and weaving method thereof

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