CN113106745A - Preparation process and preparation device of elastic composite cloth - Google Patents

Preparation process and preparation device of elastic composite cloth Download PDF

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Publication number
CN113106745A
CN113106745A CN202110379310.9A CN202110379310A CN113106745A CN 113106745 A CN113106745 A CN 113106745A CN 202110379310 A CN202110379310 A CN 202110379310A CN 113106745 A CN113106745 A CN 113106745A
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chitosan
modified
spandex
fibers
solution
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阮大海
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Anhui University of Science and Technology
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Anhui University of Science and Technology
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
    • D06M11/64—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
    • 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
    • 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
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
    • 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
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/20—Take-up motions; Cloth beams
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic System; Titanates; Zirconates; Stannates; Plumbates
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    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/53—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with hydrogen sulfide or its salts; with polysulfides
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    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
    • D06M11/76—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon oxides or carbonates
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    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
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    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/38—Polyurethanes

Abstract

The invention discloses a preparation process and a preparation device of elastic composite cloth, wherein the preparation process comprises the following steps: s1, preparing protein modified spandex fibers; s2, preparing chitosan modified polypropylene fiber; s3, preparing cotton/modified spandex core-spun yarns and cotton/modified polypropylene core-spun yarns by respectively taking protein modified spandex fibers and chitosan modified polypropylene fibers as core yarns and cotton fibers as outer wrapping fibers; and S4, taking the cotton/modified spandex core-spun yarn as warp yarn and the cotton/modified polypropylene core-spun yarn as weft yarn to obtain the elastic composite fabric. The preparation process is simple, the prepared composite elastic fabric has high elastic modulus, soft and smooth hand feeling, skin-friendly property, high stiffness and high air permeability, the preparation device can be used for rolling the prepared elastic fabric, the obtained fabric roll has few folds, the gaps among layers are uniform, and the rolling roll is small in bearing and not easy to damage.

Description

Preparation process and preparation device of elastic composite cloth
Technical Field
The invention relates to the field of cloth processing, in particular to a preparation process and a preparation device of an elastic composite cloth.
Background
Currently, due to the increasing economic level, people put higher demands on clothing. Aesthetic, comfortable, soft, and elastic properties have become the pursuit of new garment materials. Therefore, the elastic fabric has profound significance for development and research of novel elastic fabrics. Elastic fabrics are usually made by blending elastic fibers, which are synthetic fibers having high elongation at break, low modulus and high resilience. Elastic fibers are various in types, and can be classified into high elastic fibers, medium elastic fibers, low elastic fibers and micro elastic fibers according to the elasticity. And can be classified into polyurethane elastic fiber, polyether ester elastic fiber, polyester elastic fiber, polyolefin elastic fiber, and other elastic fiber according to the kind of polymer.
The polyurethane elastic fiber is called spandex fiber, has extremely high elasticity, can well improve the fabric performance only by adding a small amount of spandex fiber into the fabric, but is not resistant to oxides, and is easy to cause the yellowing of the fiber and the reduction of the strength. The polyether ester elastic fiber can reach higher tensile strength and elongation at break than polyurethane fiber, has cheap raw materials, simple and convenient process, low processing cost and excellent thermal stability, heat resistance and chlorine bleaching resistance, but has poor ageing resistance under the conditions of normal temperature and high temperature. The polyester elastic fiber has low initial modulus, soft and smooth hand feeling, difficult relaxation and excellent chemical resistance, but the elasticity of the polyester elastic fiber can meet the requirements of common textiles but cannot meet the requirements of high-elasticity products. The polyolefin elastic fiber has good elasticity, the price of raw materials is lower than that of spandex, pollution is hardly generated in the production process, the polyolefin elastic fiber is easy to recycle, and the polyolefin elastic fiber has strong chemical degradation resistance and photodegradation resistance, but the manufacturing process is complex and the requirement on production equipment is high.
Therefore, the existing elastic fiber directly woven elastic fabric has many defects, and a new elastic fabric preparation process needs to be developed.
Disclosure of Invention
In order to solve the defects mentioned in the background technology, the invention aims to provide a preparation process and a preparation device of an elastic composite fabric2Blending with polypropylene, melt-extruding to obtain chitosan modified polypropylene fiber, preparing core-spun yarn by using two modified fibers, blending to obtain composite elastic fabric, and using nano TiO to make composite elastic fabric2The composite elastic fabric prepared by compounding and finishing the sol and the citric acid has high elastic modulus, soft and smooth hand feeling, and good skin-friendly property, stiffness and air permeability.
The purpose of the invention can be realized by the following technical scheme:
a preparation process of elastic composite cloth comprises the following steps:
s1, modifying the surface of the spandex fiber, and grafting animal protein by using a cross-linking agent to prepare a protein-modified spandex fiber;
s2, mixing chitosan and nano SiO2Melt extrusion after blending with polypropylenePreparing chitosan modified polypropylene fiber;
s3, preparing cotton/modified spandex core-spun yarns and cotton/modified polypropylene core-spun yarns by respectively taking protein modified spandex fibers and chitosan modified polypropylene fibers as core yarns and cotton fibers as outer wrapping fibers through opening and picking, cotton carding, drawing, roving and spun yarn processes in sequence;
and S4, taking the cotton/modified spandex core-spun yarn as warp yarn and the cotton/modified polypropylene core-spun yarn as weft yarn, and sequentially carrying out warping, sizing, denting, weaving and finishing processes to obtain the elastic composite fabric.
Further preferably, the preparation method of the protein-modified spandex fiber in the step S1 specifically includes the following steps:
s101, putting spandex fibers into a dilute nitric acid solution for soaking for 5-10min, taking out, draining water, and then putting the spandex fibers into a baking oven at 40-80 ℃ for baking for 10-20min to obtain spandex fibers with nitrified surfaces;
s102, putting the spandex fiber with the nitrated surface into a mixed solution containing 25g/L of sodium sulfide and 20g/L of sodium carbonate, heating to 90-100 ℃, reacting for 10-20min, washing with clear water, and drying to obtain an aminated spandex fiber;
s103, dissolving the fibroin in distilled water, dissolving with sodium hydroxide to adjust the pH value to 8, and cooling to room temperature after the fibroin is completely dissolved;
s104, slowly dripping propylene oxide into the silkworm pupa protein solution, adding tetrabutyl ammonium bromide, stirring and reacting for 20-30min at room temperature, then putting into a constant-temperature water bath at 40 ℃ for reacting for 2-4h, and continuously dripping sodium hydroxide solution in the water bath reaction process to keep the pH of the reaction solution at 8-9; obtaining silk protein liquid containing epoxy groups;
and S105, immersing the aminated spandex fiber into the epoxy group-containing fibroin liquid at room temperature for 20-30min, taking out, draining, placing into an oven at 50-60 ℃ for pre-drying for 5-10min, baking in an oven at 100-110 ℃ for 20-30min, taking out, washing with clear water, and drying to obtain the protein modified spandex fiber.
Further preferably, the preparation method of the chitosan-modified polypropylene fiber in the step S2 specifically includes the following steps:
s201, adding chitosan into a ball mill, grinding and crushing the chitosan by adopting an intermittent grinding method, and refining the chitosan to an average particle size of 200-300nm to obtain chitosan powder;
s202, adding a silane coupling agent into a 10% vol ethanol solution, stirring and dissolving, and then adding sodium dodecyl sulfate, stirring and dissolving to obtain a silane coupling agent solution;
s203, mixing chitosan powder and nano SiO2Adding into chitosan powder, stirring for 2-3 hr, filtering, washing, and drying in vacuum drying oven at 60-80 deg.C for 10-12 hr to obtain modified chitosan and modified nanometer SiO2；
S204, modifying the chitosan and the modified nano SiO2Mixing the modified polypropylene master batch with polypropylene slices in a screw extruder, extruding and granulating to obtain modified polypropylene master batches;
s205, mixing and drying the modified polypropylene master batches and the polypropylene slices, and then carrying out melt spinning to obtain the chitosan modified polypropylene fiber.
Further preferably, nano TiO is adopted in step S42The finishing process of the sol and the citric acid for the woven grey cloth specifically comprises the following steps:
s401, diluting nitric acid with distilled water to prepare a solution A, mixing butyl titanate and absolute ethyl alcohol to prepare a solution B, then dropwise adding the solution B into the solution A, and stirring at room temperature to prepare nano TiO2Sol;
s402, adopting TiO with the concentration of 2 wt%2Soaking and rolling the sol twice, and then adopting 1g/L Na2CO3Soaking and rolling the solution, pre-drying at 40-60 deg.C for 3-5min, and drying at 90-100 deg.C for 3-5 min;
s403, soaking and rolling the fabric twice by using a mixed solution of 85g/L citric acid and 35g/L sodium hypophosphite, pre-baking the fabric for 3 to 5 minutes at 70 to 90 ℃, and finally baking the fabric for 3 to 5 minutes at 140-160 ℃ to obtain the elastic composite fabric.
The utility model provides a preparation facilities of compound cloth of elasticity, includes the base, and base one side symmetry is equipped with first mounting panel, and top-down is equipped with pinch roller, wind-up roll and supporting mechanism in proper order between the first mounting panel, and the fixed second mounting panel in first mounting panel one side upper end, second mounting panel keep away from first mounting panel one side bottom and pass through the supporting leg fixed with the base, fixed mounting arrangement mechanism between the second mounting panel, arrangement mechanism bilateral symmetry fixed mounting guide roll.
Further preferably, the sliding blocks are fixedly installed at the two ends of the pressing roller, the pressing roller is rotatably connected with the sliding blocks, a vertical first sliding groove is formed in the surface of the first installation plate, and the sliding blocks are slidably connected with the first sliding groove.
Further preferably, the two ends of the winding roller are rotatably connected with the first mounting plate, the rotating shaft of the winding roller is connected with the output shaft of the first motor through a belt, and the first motor is fixedly mounted on the base.
Further preferably, the supporting mechanism includes that the symmetry sets up the supporting component in wind-up roll below, the supporting component includes the bearing roller, bearing roller fixed mounting is on U type frame, the bearing roller both ends are rotated with U type frame and are connected, the second spout that the slope set up is seted up to first mounting plate surface symmetry, U type frame both ends and second spout sliding connection, U type frame bottom both sides fixed mounting guide bar, the ejector pin is run through to the guide bar lower extreme, guide bar and ejector pin sliding connection, guide bar bottom fixed mounting stopper, the guide bar surface between U type frame and the ejector pin is equipped with the spring, the ejector pin bottom is fixed with electric putter, the electric putter bottom is fixed with the bottom plate.
Further preferably, arrangement mechanism includes roof and bottom plate of fixed mounting between the second mounting bracket, fixed mounting drive box in the middle of the roof bottom, a plurality of arrangement rollers of drive box bilateral symmetry fixed mounting, the arrangement roller both ends rotate with drive box and second mounting bracket respectively and are connected, run through in the drive box and be equipped with the drive shaft, the axis of rotation of arrangement roller passes through gear and drive shaft meshing, drive shaft one end is connected with the output shaft of second motor, second motor fixed mounting is at the drive box outer wall.
Further preferably, the arrangement rollers are uniformly and equidistantly arranged, the arrangement rollers on two sides of the driving box form an included angle of 90-160 degrees, the bottom of each arrangement roller is attached to the upper surface of the bottom plate, and the top of each guide roller is flush with the upper surface of the bottom plate.
The invention has the beneficial effects that:
1. the invention modifies the surface of spandex fiber and uses cross-linking agentGrafting animal protein to obtain protein modified spandex fiber, mixing chitosan and nano SiO2Blending with polypropylene, melt-extruding to obtain chitosan modified polypropylene fiber, preparing core-spun yarn by using two modified fibers, blending to prepare composite elastic fabric, and using nano TiO to make composite elastic fabric2The composite elastic fabric prepared by compounding and finishing the sol and the citric acid has high elastic modulus, soft and smooth hand feeling, and good skin-friendly property, stiffness and air permeability.
The protein modified spandex fiber is impregnated with the spandex fiber by using a dilute nitric acid solution, the dilute nitric acid is gradually concentrated through a heating process to nitrify polyester macromolecules to introduce nitryl, then the polyester macromolecules are reduced into amino groups in a sodium sulfide solution to endow the spandex fiber with reactive groups, and after the fibroin is modified by using epoxy chloropropane, the fibroin is grafted to the surface of the spandex, so that the prepared protein modified spandex fiber has good biocompatibility and keeps outstanding mechanical properties; the chitosan modified polypropylene fiber is refined by an intermittent grinding method, and then the chitosan and the nano SiO are added2The surface silane is modified and then is blended with polypropylene for modification, a melt spinning method is adopted to prepare chitosan modified polypropylene fiber, the addition of chitosan improves the shear viscosity and shear stress of polypropylene, the non-Newtonian index is increased, and chitosan and nano SiO2The processing performance of the polypropylene fiber is obviously improved by compounding.
2. The preparation device of the elastic composite cloth can be used for rolling the prepared elastic cloth, the obtained cloth roll has few folds, the gaps among layers are uniform, and the rolling roller has small bearing capacity and is not easy to damage. Wherein the fold on the arrangement roller cloth that arrangement mechanism set up through drive box bilateral symmetry rolls to both sides, make cloth keep leveling, when carrying out the cloth rolling through the wind-up roll, the pinch roller is laminated with the upside of yardage roll under the effect of gravity, can make cloth and wind-up roll keep closely laminating when the wind-up roll rotates and carries out the cloth rolling, prevent to leave the gap between each layer of yardage roll, the supporting mechanism that the wind-up roll below set up, can provide certain holding power for the yardage roll when the yardage roll is great, prevent that the wind-up roll atress is too big to lead to impaired deformation, promote U type frame and bearing roller through electric putter and slide along the second spout, can be according to the height of the size adjustment bearing roller of yardage roll.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of an apparatus for producing an elastic composite fabric according to the present invention;
FIG. 2 is a left side view of an apparatus for making an elastic composite fabric according to the present invention;
FIG. 3 is a schematic structural view of a pressing roller and a winding roller of the elastic composite fabric manufacturing device of the invention;
FIG. 4 is a schematic structural view of a supporting mechanism of the apparatus for preparing an elastic composite fabric according to the present invention;
FIG. 5 is a schematic structural view of a support assembly of the apparatus for making an elastic composite fabric according to the present invention;
FIG. 6 is a sectional view of the finishing mechanism of the device for preparing elastic composite cloth according to the present invention.
In the figure:
1-base, 2-first mounting plate, 3-pressing roller, 4-winding roller, 5-supporting mechanism, 6-second mounting plate, 7-supporting leg, 8-finishing mechanism, 9-guiding roller, 10-sliding block, 11-first sliding chute, 12-first motor, 13-supporting component, 14-supporting roller, 15-U-shaped frame, 16-second sliding chute, 17-guiding rod, 18-ejector rod, 19-limiting block, 20-spring, 21-electric push rod, 22-top plate, 23-bottom plate, 24-driving box, 25-finishing roller, 26-driving shaft and 27-second motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Example 1
A preparation process of elastic composite cloth comprises the following steps:
s1, modifying the surface of the spandex fiber, and grafting animal protein by using a cross-linking agent to prepare the protein-modified spandex fiber, wherein the method specifically comprises the following steps:
s101, putting spandex fibers into a dilute nitric acid solution for soaking for 5min, taking out the spandex fibers, draining the spandex fibers, and putting the spandex fibers into a 50-DEG C oven for baking for 20min to obtain surface-nitrated spandex fibers;
s102, putting the spandex fiber with the nitrified surface into a mixed solution containing 25g/L of sodium sulfide and 20g/L of sodium carbonate, heating to 95 ℃, reacting for 15min, washing with clear water, and drying to obtain an aminated spandex fiber;
s103, dissolving the fibroin in distilled water, dissolving with sodium hydroxide to adjust the pH value to 8, and cooling to room temperature after the fibroin is completely dissolved;
s104, slowly dripping propylene oxide into the silkworm pupa protein solution, adding tetrabutyl ammonium bromide, stirring and reacting for 20min at room temperature, then putting into a constant-temperature water bath at 40 ℃ for reacting for 2h, and continuously dripping a sodium hydroxide solution in the water bath reaction process to keep the pH of the reaction solution at 8-9; obtaining silk protein liquid containing epoxy groups;
s105, immersing the aminated spandex fiber into the epoxy group-containing fibroin liquid at room temperature for 20min, taking out, draining, putting into a 55 ℃ oven for pre-drying for 8min, then baking in a 100 ℃ oven for 20min, taking out, washing with clear water and drying to obtain the protein-modified spandex fiber;
s2, mixing chitosan and nano SiO2The preparation method comprises the following steps of mixing the chitosan modified polypropylene fiber with polypropylene, and then performing melt extrusion to prepare the chitosan modified polypropylene fiber:
s201, adding chitosan into a ball mill, grinding and crushing the chitosan by adopting an intermittent grinding method, and thinning the chitosan to an average particle size of 250nm to obtain chitosan powder;
s202, adding a silane coupling agent into a 10% vol ethanol solution, stirring and dissolving, and then adding sodium dodecyl sulfate, stirring and dissolving to obtain a silane coupling agent solution;
s203, mixing chitosan powder and nano SiO2Respectively adding into chitosan powder, stirring for 3 hr, filtering, washing, and drying in vacuum drying oven at 70 deg.C for 12 hr to obtain modified chitosan and modified nanometer SiO2；
S204, modifying the chitosan and the modified nano SiO2Mixing the modified polypropylene master batch with polypropylene slices in a screw extruder, extruding and granulating to obtain modified polypropylene master batches;
s205, mixing and drying the modified polypropylene master batches and the polypropylene slices, and then preparing chitosan modified polypropylene fibers through melt spinning;
s3, preparing cotton/modified spandex core-spun yarns and cotton/modified polypropylene core-spun yarns by respectively taking protein modified spandex fibers and chitosan modified polypropylene fibers as core yarns and cotton fibers as outer wrapping fibers through opening and picking, cotton carding, drawing, roving and spun yarn processes in sequence;
s4, taking the cotton/modified spandex core-spun yarn as warp yarn and the cotton/modified polypropylene core-spun yarn as weft yarn, and sequentially carrying out warping, sizing, denting, weaving and finishing processes to obtain the elastic composite fabric, wherein the finishing process specifically comprises the following steps:
s401, diluting nitric acid with distilled water to prepare a solution A, mixing butyl titanate and absolute ethyl alcohol to prepare a solution B, then dropwise adding the solution B into the solution A, and stirring at room temperature to prepare nano TiO2Sol;
s402, adopting TiO with the concentration of 2 wt%2Soaking and rolling the sol twice, and then adopting 1g/L Na2CO3Soaking and rolling the solution, pre-drying at 50 deg.C for 3min, and oven-drying at 100 deg.C for 3 min;
s403, soaking and rolling the mixture of 85g/L citric acid and 35g/L sodium hypophosphite twice, pre-baking the mixture for 5min at 80 ℃, and baking the mixture for 5min at 150 ℃ to obtain the elastic composite fabric.
Example 2
A preparation process of elastic composite cloth comprises the following steps:
s1, modifying the surface of the spandex fiber, and grafting animal protein by using a cross-linking agent to prepare the protein-modified spandex fiber, wherein the method specifically comprises the following steps:
s101, putting spandex fibers into a dilute nitric acid solution for soaking for 10min, taking out the spandex fibers, draining the spandex fibers, and putting the spandex fibers into a 75-DEG C oven for baking for 20min to obtain spandex fibers with nitrified surfaces;
s102, putting the spandex fiber with the nitrified surface into a mixed solution containing 25g/L of sodium sulfide and 20g/L of sodium carbonate, heating to 95 ℃, reacting for 20min, washing with clear water, and drying to obtain an aminated spandex fiber;
s103, dissolving the fibroin in distilled water, dissolving with sodium hydroxide to adjust the pH value to 8, and cooling to room temperature after the fibroin is completely dissolved;
s104, slowly dripping propylene oxide into the silkworm pupa protein solution, adding tetrabutyl ammonium bromide, stirring and reacting for 20min at room temperature, then putting into a constant-temperature water bath at 40 ℃ for reacting for 4h, and continuously dripping a sodium hydroxide solution in the water bath reaction process to keep the pH of the reaction solution at 8-9; obtaining silk protein liquid containing epoxy groups;
s105, immersing the aminated spandex fiber into the epoxy group-containing fibroin liquid at room temperature for 20min, taking out, draining, putting into a 60 ℃ oven for pre-drying for 10min, then baking in a 110 ℃ oven for 20min, taking out, washing with clear water and drying to obtain the protein-modified spandex fiber;
s2, mixing chitosan and nano SiO2The preparation method comprises the following steps of mixing the chitosan modified polypropylene fiber with polypropylene, and then performing melt extrusion to prepare the chitosan modified polypropylene fiber:
s201, adding chitosan into a ball mill, grinding and crushing the chitosan by adopting an intermittent grinding method, and thinning the chitosan to an average particle size of 200nm to obtain chitosan powder;
s202, adding a silane coupling agent into a 10% vol ethanol solution, stirring and dissolving, and then adding sodium dodecyl sulfate, stirring and dissolving to obtain a silane coupling agent solution;
s203, mixing chitosan powder and nano SiO2Respectively adding into chitosan powder, stirring for 3 hr, filtering, washing, and drying in vacuum drying oven at 60 deg.C for 10 hr to obtain modified chitosan and modified nanometer SiO2；
S204, modifying the chitosan and the modified nano SiO2Mixing the modified polypropylene master batch with polypropylene slices in a screw extruder, extruding and granulating to obtain modified polypropylene master batches;
s205, mixing and drying the modified polypropylene master batches and the polypropylene slices, and then preparing chitosan modified polypropylene fibers through melt spinning;
s3, preparing cotton/modified spandex core-spun yarns and cotton/modified polypropylene core-spun yarns by respectively taking protein modified spandex fibers and chitosan modified polypropylene fibers as core yarns and cotton fibers as outer wrapping fibers through opening and picking, cotton carding, drawing, roving and spun yarn processes in sequence;
s4, taking the cotton/modified spandex core-spun yarn as warp yarn and the cotton/modified polypropylene core-spun yarn as weft yarn, and sequentially carrying out warping, sizing, denting, weaving and finishing processes to obtain the elastic composite fabric, wherein the finishing process specifically comprises the following steps:
s401, diluting nitric acid with distilled water to prepare a solution A, mixing butyl titanate and absolute ethyl alcohol to prepare a solution B, then dropwise adding the solution B into the solution A, and stirring at room temperature to prepare nano TiO2Sol;
s402, adopting TiO with the concentration of 2 wt%2Soaking and rolling the sol twice, and then adopting 1g/L Na2CO3Soaking and rolling the solution, pre-drying at 50 deg.C for 5min, and oven-drying at 100 deg.C for 5 min;
s403, soaking and rolling the fabric twice by using a mixed solution of 85g/L citric acid and 35g/L sodium hypophosphite, pre-baking the fabric for 3-5min at 80 ℃, and baking the fabric for 3-5min at 150 ℃ to obtain the elastic composite fabric.
Example 3
A preparation process of elastic composite cloth comprises the following steps:
s1, modifying the surface of the spandex fiber, and grafting animal protein by using a cross-linking agent to prepare the protein-modified spandex fiber, wherein the method specifically comprises the following steps:
s101, putting spandex fibers into a dilute nitric acid solution for soaking for 10min, taking out the spandex fibers, draining the spandex fibers, and putting the spandex fibers into an oven at 80 ℃ for baking for 20min to obtain spandex fibers with nitrified surfaces;
s102, putting the spandex fiber with the nitrified surface into a mixed solution containing 25g/L of sodium sulfide and 20g/L of sodium carbonate, heating to 95 ℃, reacting for 20min, washing with clear water, and drying to obtain an aminated spandex fiber;
s103, dissolving the fibroin in distilled water, dissolving with sodium hydroxide to adjust the pH value to 8, and cooling to room temperature after the fibroin is completely dissolved;
s104, slowly dripping propylene oxide into the silkworm pupa protein solution, adding tetrabutyl ammonium bromide, stirring and reacting for 25min at room temperature, then putting into a constant-temperature water bath at 40 ℃ for reacting for 3h, and continuously dripping a sodium hydroxide solution in the water bath reaction process to keep the pH of the reaction solution at 8-9; obtaining silk protein liquid containing epoxy groups;
s105, immersing the aminated spandex fiber into the epoxy group-containing fibroin liquid at room temperature for 25min, taking out, draining, putting into a 55 ℃ oven for pre-drying for 8min, then baking in a 105 ℃ oven for 25min, taking out, washing with clear water and drying to obtain the protein-modified spandex fiber;
s2, mixing chitosan and nano SiO2The preparation method comprises the following steps of mixing the chitosan modified polypropylene fiber with polypropylene, and then performing melt extrusion to prepare the chitosan modified polypropylene fiber:
s201, adding chitosan into a ball mill, grinding and crushing the chitosan by adopting an intermittent grinding method, and thinning the chitosan to an average particle size of 250nm to obtain chitosan powder;
s202, adding a silane coupling agent into a 10% vol ethanol solution, stirring and dissolving, and then adding sodium dodecyl sulfate, stirring and dissolving to obtain a silane coupling agent solution;
s203, mixing chitosan powder and nano SiO2Respectively adding into chitosan powder, stirring for 2 hr, filtering, washing, and drying in vacuum drying oven at 70 deg.C for 12 hr to obtain modified chitosan and modified nanometer SiO2；
S204, modifying the chitosan and the modified nano SiO2Mixing the modified polypropylene master batch with polypropylene slices in a screw extruder, extruding and granulating to obtain modified polypropylene master batches;
s205, mixing and drying the modified polypropylene master batches and the polypropylene slices, and then preparing chitosan modified polypropylene fibers through melt spinning;
s3, preparing cotton/modified spandex core-spun yarns and cotton/modified polypropylene core-spun yarns by respectively taking protein modified spandex fibers and chitosan modified polypropylene fibers as core yarns and cotton fibers as outer wrapping fibers through opening and picking, cotton carding, drawing, roving and spun yarn processes in sequence;
s4, taking the cotton/modified spandex core-spun yarn as warp yarn and the cotton/modified polypropylene core-spun yarn as weft yarn, and sequentially carrying out warping, sizing, denting, weaving and finishing processes to obtain the elastic composite fabric, wherein the finishing process specifically comprises the following steps:
s401, diluting nitric acid with distilled water to prepare a solution A, mixing butyl titanate and absolute ethyl alcohol to prepare a solution B, then dropwise adding the solution B into the solution A, and stirring at room temperature to prepare nano TiO2Sol;
s402, adopting TiO with the concentration of 2 wt%2Soaking and rolling the sol twice, and then adopting 1g/L Na2CO3Soaking and rolling the solution, pre-drying at 40 deg.C for 3min, and oven-drying at 90 deg.C for 5 min;
s403, soaking and rolling the mixture of 85g/L citric acid and 35g/L sodium hypophosphite twice, pre-baking the mixture for 5min at 80 ℃, and baking the mixture for 3min at 150 ℃ to obtain the elastic composite fabric.
As shown in figures 1-2, a preparation facilities of compound cloth of elasticity, including base 1, 1 lateral symmetry of base is equipped with first mounting panel 2, top-down is equipped with pinch roller 3, wind-up roll 4 and supporting mechanism 5 in proper order between the first mounting panel 2, the fixed second mounting panel 6 in first mounting panel 2 one side upper end, the second mounting panel 6 is kept away from 2 one side bottom of first mounting panel and is fixed with base 1 through supporting leg 7, fixed mounting arrangement mechanism 8 between the second mounting panel 6, 8 bilateral symmetry fixed mounting guide rolls 9 of arrangement mechanism.
As shown in fig. 3, the sliding blocks 10 are fixedly installed at two ends of the pressing roller 3, the pressing roller 3 is rotatably connected with the sliding blocks 10, the vertical first sliding groove 11 is formed in the surface of the first installation plate 2, and the sliding blocks 10 are slidably connected with the first sliding groove 11.
The two ends of the wind-up roll 4 are rotatably connected with the first mounting plate 2, the rotating shaft of the wind-up roll 4 is connected with the output shaft of the first motor 12 through a belt, and the first motor 12 is fixedly mounted on the base 1.
As shown in fig. 4-5, the supporting mechanism 5 includes supporting components 13 symmetrically disposed below the wind-up roll 4, the supporting components 13 include carrier rollers 14, the carrier rollers 14 are fixedly mounted on a U-shaped frame 15, two ends of the carrier rollers 14 are rotatably connected with the U-shaped frame 15, second chutes 16 obliquely disposed are symmetrically formed in the surface of the first mounting plate 2, two ends of the U-shaped frame 15 are slidably connected with the second chutes 16, guide rods 17 are fixedly mounted on two sides of the bottom of the U-shaped frame 15, the lower ends of the guide rods 17 penetrate through ejector rods 18, the guide rods 17 are slidably connected with the ejector rods 18, limit blocks 19 are fixedly mounted at the bottom ends of the guide rods 17, springs 20 are disposed on the surfaces of the guide rods 17 between the U-shaped frame 15 and the ejector rods 18, the bottoms of the ejector rods 18 are fixed with electric.
As shown in fig. 6, the arranging mechanism 8 comprises a top plate 22 and a bottom plate 23 which are fixedly installed between the second installation frames 6, a driving box 24 is fixedly installed in the middle of the bottom of the top plate 22, a plurality of arranging rollers 25 are symmetrically and fixedly installed on two sides of the driving box 24, two ends of each arranging roller 25 are respectively connected with the driving box 24 and the second installation frame 6 in a rotating mode, a driving shaft 26 penetrates through the driving box 24, the rotating shaft of each arranging roller 25 is meshed with the driving shaft 26 through a gear, one end of the driving shaft 26 is connected with an output shaft of a second motor 27, and the second motor 27 is fixedly installed on the outer wall of.
The arrangement rollers 25 are uniformly and equidistantly arranged, the arrangement rollers 25 on the two sides of the driving box 24 form an included angle of 90-160 degrees, the bottoms of the arrangement rollers 25 are attached to the upper surface of the bottom plate 23, and the tops of the guide rollers 9 are flush with the upper surface of the bottom plate 23.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims (10)

1. A preparation process of an elastic composite fabric is characterized by comprising the following steps:
s1, modifying the surface of the spandex fiber, and grafting animal protein by using a cross-linking agent to prepare a protein-modified spandex fiber;
s2, mixing chitosan and nano SiO2Blending the chitosan and polypropylene, and then performing melt extrusion to prepare chitosan modified polypropylene fiber;
s3, preparing cotton/modified spandex core-spun yarns and cotton/modified polypropylene core-spun yarns by respectively taking protein modified spandex fibers and chitosan modified polypropylene fibers as core yarns and cotton fibers as outer wrapping fibers through opening and picking, cotton carding, drawing, roving and spun yarn processes in sequence;
and S4, taking the cotton/modified spandex core-spun yarn as warp yarn and the cotton/modified polypropylene core-spun yarn as weft yarn, and sequentially carrying out warping, sizing, denting, weaving and finishing processes to obtain the elastic composite fabric.
2. The preparation process of the elastic composite fabric according to claim 1, wherein the preparation method of the protein modified spandex fiber in the step S1 specifically comprises the following steps:
s101, putting spandex fibers into a dilute nitric acid solution for soaking for 5-10min, taking out, draining water, and then putting the spandex fibers into a baking oven at 40-80 ℃ for baking for 10-20min to obtain spandex fibers with nitrified surfaces;
s102, putting the spandex fiber with the nitrated surface into a mixed solution containing 25g/L of sodium sulfide and 20g/L of sodium carbonate, heating to 90-100 ℃, reacting for 10-20min, washing with clear water, and drying to obtain an aminated spandex fiber;
s103, dissolving the fibroin in distilled water, dissolving with sodium hydroxide to adjust the pH value to 8, and cooling to room temperature after the fibroin is completely dissolved;
s104, slowly dripping propylene oxide into the silkworm pupa protein solution, adding tetrabutyl ammonium bromide, stirring and reacting for 20-30min at room temperature, then putting into a constant-temperature water bath at 40 ℃ for reacting for 2-4h, and continuously dripping sodium hydroxide solution in the water bath reaction process to keep the pH of the reaction solution at 8-9; obtaining silk protein liquid containing epoxy groups;
and S105, immersing the aminated spandex fiber into the epoxy group-containing fibroin liquid at room temperature for 20-30min, taking out, draining, placing into an oven at 50-60 ℃ for pre-drying for 5-10min, baking in an oven at 100-110 ℃ for 20-30min, taking out, washing with clear water, and drying to obtain the protein modified spandex fiber.
3. The preparation process of the elastic composite fabric according to claim 1, wherein the preparation method of the chitosan modified polypropylene fiber in the step S2 specifically comprises the following steps:
s201, adding chitosan into a ball mill, grinding and crushing the chitosan by adopting an intermittent grinding method, and refining the chitosan to an average particle size of 200-300nm to obtain chitosan powder;
s202, adding a silane coupling agent into a 10% vol ethanol solution, stirring and dissolving, and then adding sodium dodecyl sulfate, stirring and dissolving to obtain a silane coupling agent solution;
s203, mixing chitosan powder and nano SiO2Adding into chitosan powder, stirring for 2-3 hr, filtering, washing, and drying in vacuum drying oven at 60-80 deg.C for 10-12 hr to obtain modified chitosan and modified nanometer SiO2；
S204, modifying the chitosan and the modified nano SiO2Mixing the modified polypropylene master batch with polypropylene slices in a screw extruder, extruding and granulating to obtain modified polypropylene master batches;
s205, mixing and drying the modified polypropylene master batches and the polypropylene slices, and then carrying out melt spinning to obtain the chitosan modified polypropylene fiber.
4. The preparation process of the elastic composite cloth according to claim 1, wherein nano TiO is adopted in the step S42The finishing process of the sol and the citric acid for the woven grey cloth specifically comprises the following steps:
s401, diluting nitric acid with distilled water to prepare a solution A, mixing butyl titanate and absolute ethyl alcohol to prepare a solution B, then dropwise adding the solution B into the solution A, and stirring at room temperature to prepare nano TiO2Sol;
s402, adopting TiO with the concentration of 2 wt%2Soaking and rolling the sol twice, and then adopting 1g/L Na2CO3Soaking and rolling the solution, pre-drying at 40-60 deg.C for 3-5min, and drying at 90-100 deg.C for 3-5 min;
s403, soaking and rolling the fabric twice by using a mixed solution of 85g/L citric acid and 35g/L sodium hypophosphite, pre-baking the fabric for 3 to 5 minutes at 70 to 90 ℃, and finally baking the fabric for 3 to 5 minutes at 140-160 ℃ to obtain the elastic composite fabric.
5. The utility model provides a preparation facilities of compound cloth of elasticity, a serial communication port, includes base (1), base (1) one side symmetry is equipped with first mounting panel (2), top-down is equipped with compressing roller (3), wind-up roll (4) and supporting mechanism (5) in proper order between first mounting panel (2), fixed second mounting panel (6) in first mounting panel (2) one side upper end, it is fixed with base (1) through supporting leg (7) to keep away from first mounting panel (2) one side bottom second mounting panel (6), fixed mounting arrangement mechanism (8) between second mounting panel (6), arrangement mechanism (8) bilateral symmetry fixed mounting guide roll (9).
6. The preparation device of the elastic composite cloth according to claim 5, wherein sliding blocks (10) are fixedly mounted at two ends of the pressing roller (3), the pressing roller (3) is rotatably connected with the sliding blocks (10), a vertical first sliding groove (11) is formed in the surface of the first mounting plate (2), and the sliding blocks (10) are slidably connected with the first sliding groove (11).
7. The preparation device of the elastic composite cloth according to claim 5, wherein two ends of the wind-up roll (4) are rotatably connected with the first mounting plate (2), a rotating shaft of the wind-up roll (4) is connected with an output shaft of a first motor (12) through a belt, and the first motor (12) is fixedly mounted on the base (1).
8. The device for preparing the elastic composite cloth according to claim 5, wherein the supporting mechanism (5) comprises supporting components (13) symmetrically arranged below the winding roller (4), the supporting components (13) comprise carrier rollers (14), the carrier rollers (14) are fixedly arranged on a U-shaped frame (15), two ends of the carrier rollers (14) are rotatably connected with the U-shaped frame (15), second sliding grooves (16) obliquely arranged are symmetrically formed in the surface of the first mounting plate (2), two ends of the U-shaped frame (15) are slidably connected with the second sliding grooves (16), guide rods (17) are fixedly arranged on two sides of the bottom of the U-shaped frame (15), the lower ends of the guide rods (17) penetrate through ejector rods (18), the guide rods (17) are slidably connected with the ejector rods (18), limiting blocks (19) are fixedly arranged at the bottom ends of the guide rods (17), springs (20) are arranged on the surfaces of the guide rods (17) between the U-shaped frame (15) and the ejector rods (18), the bottom of the ejector rod (18) is fixed with the electric push rod (21), and the bottom end of the electric push rod (21) is fixed with the bottom plate (1).
9. The preparation device of elasticity composite cloth according to claim 5, characterized in that, arrangement mechanism (8) includes roof (22) and bottom plate (23) of fixed mounting between second mounting bracket (6), fixed mounting drive box (24) in the middle of roof (22) bottom, a plurality of arrangement roller (25) of drive box (24) bilateral symmetry fixed mounting, arrangement roller (25) both ends rotate with drive box (24) and second mounting bracket (6) respectively and are connected, drive shaft (26) are worn to be equipped with in drive box (24), the axis of rotation of arrangement roller (25) passes through gear and drive shaft (26) meshing, drive shaft (26) one end and the output shaft of second motor (27), second motor (27) fixed mounting is in drive box (24) outer wall.
10. The preparation device of the elastic composite cloth according to claim 9, wherein the arrangement rollers (25) are uniformly and equidistantly arranged, the arrangement rollers (25) on two sides of the driving box (24) form an included angle of 90-160 degrees, the bottoms of the arrangement rollers (25) are attached to the upper surface of the bottom plate (23), and the tops of the guide rollers (9) are flush with the upper surface of the bottom plate (23).
CN202110379310.9A 2021-04-08 2021-04-08 Preparation process and preparation device of elastic composite cloth Pending CN113106745A (en)

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