CN116497473A - Regenerated fabric and preparation process thereof - Google Patents
Regenerated fabric and preparation process thereof Download PDFInfo
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- CN116497473A CN116497473A CN202310569731.7A CN202310569731A CN116497473A CN 116497473 A CN116497473 A CN 116497473A CN 202310569731 A CN202310569731 A CN 202310569731A CN 116497473 A CN116497473 A CN 116497473A
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- regenerated
- fabric
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- fiber
- blending
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- 239000004744 fabric Substances 0.000 title claims abstract description 86
- 238000002360 preparation method Methods 0.000 title claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000000835 fiber Substances 0.000 claims abstract description 148
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 106
- 229920000728 polyester Polymers 0.000 claims abstract description 76
- 238000002156 mixing Methods 0.000 claims abstract description 58
- 239000011787 zinc oxide Substances 0.000 claims abstract description 53
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000000843 powder Substances 0.000 claims abstract description 47
- 229920001577 copolymer Polymers 0.000 claims abstract description 35
- 239000004005 microsphere Substances 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 32
- 108010073771 Soybean Proteins Proteins 0.000 claims abstract description 27
- 229920013627 Sorona Polymers 0.000 claims abstract description 26
- 235000019710 soybean protein Nutrition 0.000 claims abstract description 25
- 241000196324 Embryophyta Species 0.000 claims abstract description 21
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 229920003015 aliphatic polyurethane dispersion Polymers 0.000 claims abstract description 10
- 238000009941 weaving Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 29
- 238000009987 spinning Methods 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 13
- 238000012986 modification Methods 0.000 claims description 9
- 230000004048 modification Effects 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- 239000006185 dispersion Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 235000013311 vegetables Nutrition 0.000 claims description 6
- 238000009990 desizing Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000004043 dyeing Methods 0.000 claims description 4
- RSKGMYDENCAJEN-UHFFFAOYSA-N hexadecyl(trimethoxy)silane Chemical compound CCCCCCCCCCCCCCCC[Si](OC)(OC)OC RSKGMYDENCAJEN-UHFFFAOYSA-N 0.000 claims description 4
- MQWFLKHKWJMCEN-UHFFFAOYSA-N n'-[3-[dimethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CO[Si](C)(OC)CCCNCCN MQWFLKHKWJMCEN-UHFFFAOYSA-N 0.000 claims description 4
- HXLAEGYMDGUSBD-UHFFFAOYSA-N 3-[diethoxy(methyl)silyl]propan-1-amine Chemical compound CCO[Si](C)(OCC)CCCN HXLAEGYMDGUSBD-UHFFFAOYSA-N 0.000 claims description 3
- 238000010035 extrusion spinning Methods 0.000 claims description 3
- 238000012805 post-processing Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- -1 isopropyl distearoyl oxy aluminate Chemical class 0.000 claims description 2
- 230000035699 permeability Effects 0.000 abstract description 15
- 238000010521 absorption reaction Methods 0.000 abstract description 13
- 239000012756 surface treatment agent Substances 0.000 abstract description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 37
- 229920000139 polyethylene terephthalate Polymers 0.000 description 33
- 230000000052 comparative effect Effects 0.000 description 24
- 238000002474 experimental method Methods 0.000 description 6
- 239000002086 nanomaterial Substances 0.000 description 6
- 230000000844 anti-bacterial effect Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000004753 textile Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 229920004933 Terylene® Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002759 woven fabric Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 229940001941 soy protein Drugs 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- OFNISBHGPNMTMS-UHFFFAOYSA-N 3-methylideneoxolane-2,5-dione Chemical compound C=C1CC(=O)OC1=O OFNISBHGPNMTMS-UHFFFAOYSA-N 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 101710145505 Fiber protein Proteins 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 108010064851 Plant Proteins Proteins 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 125000004018 acid anhydride group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- FCZCIXQGZOUIDN-UHFFFAOYSA-N ethyl 2-diethoxyphosphinothioyloxyacetate Chemical compound CCOC(=O)COP(=S)(OCC)OCC FCZCIXQGZOUIDN-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 235000021118 plant-derived protein Nutrition 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920003009 polyurethane dispersion Polymers 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000006557 surface reaction Methods 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
Classifications
-
- 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
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- 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
- D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
-
- 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
- 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
- D01F1/103—Agents inhibiting growth of microorganisms
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/208—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based
- D03D15/217—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based natural from plants, e.g. cotton
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/233—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads protein-based, e.g. wool or silk
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Botany (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Woven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The application relates to the technical field of fabric preparation, and particularly discloses a regenerated fabric and a preparation process thereof. The regenerated fabric is formed by blending and weaving modified regenerated polyester fibers, sorona plant fibers and soybean protein fibers; the modified regenerated polyester fiber is prepared from the following components in parts by weight: 70-90 parts of PET reclaimed materials, 1.0-1.2 parts of itaconic anhydride-vinyl acetate copolymer microspheres, 0.8-1.2 parts of nano zinc oxide, 0.4-0.6 part of nano silver powder, 0.5-1 part of aliphatic polyurethane dispersion liquid, 0.8-1 part of surface treatment agent, 0.05-0.1 part of cross-linking agent and 0.01-0.05 part of compatilizer. The regenerated polyester fiber antistatic performance can be improved, the regenerated fabric is prepared by blending the modified regenerated polyester fiber with the sorona plant fiber and the soybean protein fiber, the moisture absorption and air permeability and antistatic performance of the fabric can be enhanced, and the application range of the regenerated fabric is widened.
Description
Technical Field
The application relates to the technical field of fabric preparation, in particular to a regenerated fabric and a preparation process thereof.
Background
Continuous improvement of textile fabrics has been an important direction of sustainable development in the textile industry. In order to conform to the concept of green environmental protection, the bio-based source, the recyclable and the degradable materials become research hot spots for fabric improvement. The regenerated polyester fabric is novel environment-friendly regenerated fabric, yarns of the novel environment-friendly regenerated fabric are extracted from waste PET bottles, and the fabric can be used in the fields of bags, home textiles, clothing articles and the like, so that the prior art is mature.
Because the regenerated terylene is obtained by chemical method or physical method from waste PET plastics, the quality and performance of the regenerated terylene are poorer than those of the original terylene. The related art proposes that the regenerated polyester fiber and other functional fibers are blended to obtain yarns and then are woven into the fabric, so that the environment-friendly regenerated fabric with excellent moisture absorption, air permeability and antistatic property is obtained, but static electricity is easily generated when the regenerated polyester fiber and other functional fibers are blended, blending processing is not easily performed, and the quality and performance defects of the regenerated polyester fiber can influence the comprehensive performance of the fabric.
Disclosure of Invention
In order to improve the antistatic property of regenerated terylene and the moisture absorption and air permeability of the regenerated fabric, the application provides the regenerated fabric and a preparation process thereof.
The application provides a regenerated fabric, which adopts the following technical scheme:
the regenerated fabric is formed by blending and weaving modified regenerated polyester fibers, sorona plant fibers and soybean protein fibers; the modified regenerated polyester fiber is prepared from the following components in parts by weight:
70-90 parts of PET reclaimed material
1.0 to 1.2 portions of itaconic anhydride-vinyl acetate copolymer microsphere
0.8-1.2 parts of nano zinc oxide
0.4 to 0.6 part of nano silver powder
Aliphatic polyurethane dispersion 0.5-1 parts
0.8-1 part of surface treating agent
0.05 to 0.1 part of cross-linking agent
0.01-0.05 part of compatilizer.
According to the scheme, the regenerated polyester fiber is prepared from the PET reclaimed material through a physical spinning method, the fiber quality and performance of the regenerated polyester fiber are poorer than those of the original polyester fiber, the PET reclaimed material is modified, the surface treated nano zinc oxide, the nano silver powder and the itaconic anhydride-vinyl acetate copolymer microsphere are mutually adsorbed and combined in an aliphatic polyurethane dispersion liquid, the nano zinc oxide and the nano silver powder have excellent sterilization and antistatic performance, the antistatic performance of the regenerated polyester fiber can be well improved, the antibacterial and bactericidal performance is endowed, the itaconic anhydride-vinyl acetate copolymer microsphere has active functional groups such as acid anhydride groups and ester groups, the specific surface area is large, the adsorptivity is strong, the surface reaction capacity is strong, the surface treated nano zinc oxide and the itaconic anhydride-vinyl acetate copolymer microsphere can be combined with PET in a dispersion liquid, the antistatic and antibacterial performance of the fiber is more durable, the aliphatic polyurethane dispersion liquid can improve the dispersibility of the nano material and the itaconic anhydride-vinyl acetate copolymer microsphere in the reclaimed material, the adhesive can help to promote the electrostatic and restore the good crosslinking rate of the regenerated polyester fiber, and the regenerated polyester fiber can be further restored with good crosslinking agent, and the regenerated polyester fiber has good rebound rate and good rebound rate; the sorona plant fiber is novel biomass elastic fiber, the fabric woven by the sorona plant fiber has smooth hand feeling and excellent skin-friendly feeling, the soybean protein fiber is regenerated plant protein fiber, the soybean protein fiber is biodegradable, the soybean fiber has good environmental protection property, and the soybean protein fiber has good moisture absorption and air permeability, and the woven regenerated fabric has excellent skin-friendly feeling and moisture absorption and air permeability by blending the modified regenerated polyester fiber, the sorona plant fiber and the soybean protein fiber in a proper proportion, so that the application range of the regenerated fabric is widened.
Preferably, the preparation of the modified regenerated polyester fiber comprises the following steps:
step one, preparing a modified PET slice, which comprises the following steps:
a. carrying out surface modification treatment on the nano zinc oxide and the nano silver powder by using a surface treating agent to obtain a modified nano mixture; b. mixing the modified nano mixture with aliphatic polyurethane dispersion liquid, and mechanically stirring for 10-15min at normal temperature to obtain modified dispersion liquid; adding itaconic anhydride-vinyl acetate copolymer microspheres with accurate metering into the modified dispersion liquid, stirring and mixing for 15-30min to obtain a mixture;
c. melting and blending the PET reclaimed material with accurate measurement, the mixture obtained in the step b, the crosslinking agent with accurate measurement and the compatilizer to obtain a mixed material, extruding, granulating and drying the mixed material to obtain a modified PET slice; controlling the temperature condition of blending extrusion to be 265-290 ℃;
and step two, extrusion spinning.
By adopting the scheme, the preparation steps of the modified regenerated polyester fiber are limited, the PET reclaimed material is modified by the mixture formed by dispersing the modified nano mixture and the copolymer microsphere in the aliphatic polyurethane in the treatment stage of the PET reclaimed material, and the modified PET reclaimed material is better by assisting with the cross-linking agent and the compatilizer, so that the obtained melt is easier to extrude and spin by limiting the melt blending temperature, and the modified regenerated polyester fiber with excellent performance is obtained.
Preferably, the second step comprises the following specific steps: taking the modified PET slices prepared in the first step as raw materials, and preparing the modified regenerated polyester fibers through melting, filtering and spinning, wherein the spinning technological parameters are as follows: the frequency of the metering pump is 50-60Hz, the spinning speed is 3100-3500m/min, the spinning temperature is 265-290 ℃, the temperature of the front hot roller is 95-100 ℃, the temperature of the rear hot roller is 140-150 ℃, the drafting multiple is 3.1-3.3, and the drafting temperature is 75-80 ℃.
By adopting the scheme, the spinning process can be easier to carry out by limiting the spinning speed, the temperature, the draft multiple and the like in the spinning process, and the quality and the performance of the spun fiber can be kept at a good level.
Preferably, in the step one (c), the mixing specifically includes the following steps: and d, firstly, putting the PET reclaimed material into a screw extruder for banburying, adjusting the screw rotation speed to be 400-500r/min after the screw rotation speed to be 500-600r/min and 25-30min, and putting the mixture obtained in the step b, the accurately-metered cross-linking agent and the accurately-metered compatilizer into the mixture for blending for 1.5-2h.
By adopting the scheme, before the components are mixed, the PET reclaimed materials are firstly put into banburying, some impurity parts in the PET reclaimed materials can be eliminated under a heating state, the original polyester fiber is in a state of being easier to modify, other components are convenient to be added for blending modification, and the quality and performance of the fiber obtained by blending modification are better.
Preferably, the weight ratio of the nano zinc oxide to the nano silver powder is (1-1.6): (0.5-0.75); the average grain diameter of the nano zinc oxide is 10-20nm; the average grain diameter of the nanometer silver powder is 20-50nm.
By adopting the scheme, the particle sizes of the nano zinc oxide and the nano silver powder are limited, so that the nano zinc oxide and the nano silver powder can be better combined with itaconic anhydride-vinyl acetate copolymer microspheres, and the weight ratio of the nano zinc oxide to the nano silver powder is limited, so that the quality inspection of the excellent antistatic and antibacterial effects can be well balanced at the economic cost.
Preferably, the ratio of the total mass of the nano zinc oxide and the nano silver powder to the mass of the itaconic anhydride-vinyl acetate copolymer microsphere is (1.2-1.5): 1.
by adopting the scheme, the mass ratio of the nano zinc oxide to the copolymer microsphere can be limited under the condition that the weight ratio of the nano zinc oxide to the nano silver powder is limited, so that the combination property of the nano zinc oxide and the nano silver powder is better.
Preferably, the surface treating agent is one of gamma-glycidol ether oxypropyl trimethoxy siloxane KH-560, isopropyl distearoyl oxy aluminate HY-988 and hexadecyl trimethoxy silane KH-1631.
By adopting the scheme, the surface treatment agent can be used for better surface modification of the nano zinc oxide and the nano silver powder, so that the copolymer microsphere has better bonding property.
Preferably, the cross-linking agent is one of N-aminoethyl-3-aminopropyl methyl dimethoxy silane, tetrabutyl titanate and polybutyl titanate; the compatilizer is one or more of macromolecular aminosilane mixture KH-450, silicon-aluminum polymer KY-933 and gamma-aminopropyl methyl diethoxy silane KH-902.
By adopting the scheme, the selected cross-linking agent can enable the combination of the nanometer zinc oxide, the nanometer silver powder and the copolymer microsphere to be more tightly combined, and can assist the combination between the copolymer microsphere and the PET to be better. The macromolecular aminosilane mixture KH-450 can optimize the compatibility between the macromolecules and inorganic matters and improve the toughness of the material; the silicon-aluminum polymer KY-933 maintains certain reactivity while improving dispersibility, and can capture free radicals or polar bonds of a polymer system, thereby generating better coupling effect and improving the mechanical property of the composite material; gamma-aminopropyl methyldiethoxysilane KH-902 can improve filler wettability and dispersibility in the polymer matrix.
Preferably, the blending ratio of the modified regenerated polyester fiber to the sorona vegetable fiber to the soybean protein fiber is (40% -65%): (20% -40%): (15% -20%).
By adopting the scheme, the three fiber blending ratios are limited, so that the moisture absorption, air permeability and antistatic performance of the woven fabric are better.
In a second aspect, the present application provides a preparation process of a regenerated fabric, which is implemented by the following technical scheme:
the preparation process of the regenerated fabric comprises the following steps:
s1, blending: blending the modified regenerated polyester fiber with the sorona plant fiber and the soybean protein fiber according to a proportion to obtain warp yarn and weft yarn, and weaving the warp yarn and the weft yarn to obtain a fabric blank;
s2, pretreatment: desizing the fabric blank;
s3, dyeing: padding dye liquor on the pretreated fabric, and performing the procedures of pre-drying, water washing and re-drying to obtain dyed fabric;
s4, post-processing: and (3) finishing the dyed fabric obtained in the step (S3) by adopting a finishing agent to finally obtain a regenerated fabric finished product.
Through adopting above-mentioned scheme to modified regeneration polyester fiber and sorona vegetable fiber, soybean protein fiber carry out the blending with suitable proportion, can make the fabric that weaves have better moisture absorption gas permeability, and the use of modified regeneration polyester fiber can better improve the polyester fabric blank and make difficult problem of coloring at the dyeing for the fabric processing is convenient.
In summary, the present application has the following beneficial effects:
1. the modified regenerated polyester fiber has good antistatic performance, so that the modified regenerated polyester fiber is convenient to blend with sorona plant fiber and soybean protein fiber, and the sorona plant fiber and the soybean protein fiber are environment-friendly fibers, so that the environment-friendly performance is further improved for the regenerated fabric, the fabric has more comfortable handfeel and good applicability, and simultaneously has excellent moisture absorption and air permeability;
2. the preparation method is relatively simple, low in operation difficulty and convenient to realize industrial production and manufacture.
Detailed Description
The present application is described in further detail below in connection with preparation examples, examples and comparative examples.
Preparation example
Preparation example 1
Preparation of itaconic anhydride-vinyl acetate copolymer microspheres
A1, adding 0.56kg of itaconic anhydride, 0.43kg of vinyl acetate and 0.08kg of azobisisopropylimidazoline hydrochloride into a first container, ultrasonically dissolving in 800mL of butyl acetate, and introducing N 2 30min；
A2, placing the first container with the reactant in an oil bath pot at 85 ℃ and adding the reactant in N 2 Reacting for 6h in the atmosphere;
and A3, centrifuging the product for 10min after the reaction is finished, pouring out supernatant, washing precipitate with a first solvent, washing precipitate with petroleum ether, and drying the centrifuged product in a vacuum oven at 100 ℃ to obtain the itaconic anhydride-vinyl acetate copolymer microspheres.
Preparation example 2
Preparation of modified regenerated polyester fiber
The modified regenerated polyester fiber is prepared from the following components: 72kg of PET reclaimed materials, 1.0kg of itaconic anhydride-vinyl acetate copolymer microspheres, 0.8kg of nano zinc oxide, 0.4kg of nano silver powder, 0.5kg of aliphatic polyurethane dispersion liquid, 1.0kg of surface treating agent, 0.08kg of cross-linking agent and 0.02kg of compatilizer.
The PET reclaimed material is obtained by crushing waste PET plastic into sheets, separating PET impurities, washing, drying and granulating the waste PET fragments.
Itaconic anhydride-vinyl acetate copolymer microspheres were obtained in preparation example 1. The average particle diameter of the nano zinc oxide is 20nm, and the average particle diameter of the nano silver powder is 50nm. The aliphatic polyurethane dispersion liquid adopts PU570FN self-extinction aliphatic aqueous polyurethane dispersion.
The surface treating agent adopts hexadecyl trimethoxy silane KH-1631, the cross-linking agent adopts N-aminoethyl-3-aminopropyl methyl dimethoxy silane (CAS No. 3069-29-2), and the compatilizer is silicon aluminum polymer KY-933.
The specific preparation process of the modified regenerated polyester fiber comprises the following steps:
step one, preparing a modified PET slice
a. Carrying out surface modification treatment on the nano zinc oxide and the nano silver powder by using a surface treating agent to obtain a modified nano mixture: dispersing 1.0kg of hexadecyl trimethoxy silane KH-1631 in 100ml of ethanol water solution, adding metered nano zinc oxide and nano silver powder into the solution, stirring the mixture at 75 ℃ for reaction for 4 hours, filtering the mixture through a funnel, and drying the mixture obtained after filtering in a drying oven at 100 ℃ to obtain treated nano zinc oxide; the nano silver powder is processed in the same way as the above. And then mixing the treated nano zinc oxide with nano silver powder to obtain a modified nano mixture.
b. Mixing the modified nano mixture with PU570FN aliphatic polyurethane dispersion liquid, and mechanically stirring for 10min at 25 ℃ to obtain modified dispersion liquid; adding itaconic anhydride-vinyl acetate copolymer microspheres with accurate metering into the modified dispersion liquid, stirring and mixing for 25min to obtain a mixture;
c. mixing the PET reclaimed material with accurate measurement, the mixture obtained in the step b, the crosslinking agent and the compatilizer with accurate measurement in a screw extruder for 1.5h, and extruding and granulating the mixture: melting the mixed material into fluid at 265-290 ℃, wherein the first temperature zone is 265-270 ℃, the second temperature zone is 270-275 ℃, the third temperature zone is 275-285 ℃, the fourth temperature zone is 285-290 ℃, the die head temperature is 285-295 ℃, and the extruded molten material is injected into a granulator for granulation and then dried, so that modified PET chips are prepared;
step two, extrusion spinning
Taking the modified PET slices prepared in the first step as raw materials, and preparing the modified regenerated polyester fibers through melting, filtering and spinning, wherein the spinning technological parameters are as follows: the frequency of the metering pump is 50-60Hz, the spinning speed is 3200m/min, the spinning temperature is 265-290 ℃, the temperature of the front hot roller is 100 ℃, the temperature of the rear hot roller is 148 ℃, the drafting multiple is 3.2, and the drafting temperature is 75 ℃.
Thereby preparing the modified regenerated polyester fiber.
Preparation example 3
Preparation example 3 differs from preparation example 2 in that in step one (c), the mixing specifically comprises the steps of: and c, firstly, putting the PET reclaimed materials into a screw extruder for banburying, adjusting the screw rotation speed to 450r/min after the screw rotation speed is 550r/min and 25min, and putting the mixture obtained in the step b, the accurately-metered cross-linking agent and the accurately-metered compatilizer into the extruder for blending for 1.5h.
Preparation example 4
The difference between the preparation example 4 and the preparation example 2 is that the total dosage of the nano zinc oxide and the nano silver powder is unchanged, and the weight ratio of the nano zinc oxide to the nano silver powder is 1.6:0.75.
preparation example 5
The difference between the preparation example 5 and the preparation example 2 is that the total dosage of the nano zinc oxide and the nano silver powder is unchanged, and the weight ratio of the nano zinc oxide to the nano silver powder is 1.1:0.6.
preparation example 6
Preparation example 6 differs from preparation example 5 in that the ratio of the total mass of the nano zinc oxide, nano silver powder to the mass of the itaconic anhydride-vinyl acetate copolymer microspheres is 1.8:1, 1.0kg of itaconic anhydride-vinyl acetate copolymer microspheres are adopted to match 1.16kg of nano zinc oxide and 0.64kg of nano silver powder.
Preparation example 7
Preparation example 7 differs from preparation example 5 in that the ratio of the total mass of the nano zinc oxide, nano silver powder to the mass of the itaconic anhydride-vinyl acetate copolymer microspheres is 1.5:1, 1.0kg of itaconic anhydride-vinyl acetate copolymer microspheres are adopted to match 0.97kg of nano zinc oxide and 0.53kg of nano silver powder.
Preparation example 8
Preparation example 8 differs from preparation example 5 in that the ratio of the total mass of the nano zinc oxide, nano silver powder to the mass of the itaconic anhydride-vinyl acetate copolymer microspheres is 1.4:1, 1.0kg of itaconic anhydride-vinyl acetate copolymer microspheres are adopted to match 0.91kg of nano zinc oxide and 0.49kg of nano silver powder.
Preparation example 9
The difference between the preparation example 9 and the preparation example 2 is that the total dosage of the nano zinc oxide and the nano silver powder is unchanged, and the weight ratio of the nano zinc oxide to the nano silver powder is 0.8:0.5.
preparation example 10
The difference between the preparation example 10 and the preparation example 2 is that the total dosage of the nano zinc oxide and the nano silver powder is unchanged, and the weight ratio of the nano zinc oxide to the nano silver powder is 0.8:1.
PREPARATION EXAMPLE 11
Preparation 11 differs from preparation 5 in that the ratio of the total mass of the nano zinc oxide and nano silver powder to the mass of the itaconic anhydride-vinyl acetate copolymer microspheres is 1:1, 1.0kg of itaconic anhydride-vinyl acetate copolymer microspheres are adopted to match 0.65kg of nano zinc oxide and 0.35kg of nano silver powder.
Preparation example 12
Preparation example 12 differs from preparation example 5 in that the ratio of the total mass of the nano zinc oxide and nano silver powder to the mass of the itaconic anhydride-vinyl acetate copolymer microspheres is 2:1, 1.0kg of itaconic anhydride-vinyl acetate copolymer microspheres are adopted to match 1.3kg of nano zinc oxide and 0.7kg of nano silver powder.
Examples
Example 1
A regenerated fabric is formed by blending and weaving modified regenerated polyester fibers, sorona plant fibers and soybean protein fibers. The blending proportion is 40% of modified regenerated polyester fiber, 40% of sorona plant fiber and 20% of soybean protein fiber. Wherein, the modified regenerated polyester fiber is obtained by adopting the preparation example 2.
The preparation process of the regenerated fabric comprises the following steps:
s1, blending: blending the modified regenerated polyester fiber with the sorona vegetable fiber and the soybean protein fiber according to a proportion to obtain yarn, and weaving the yarn into a fabric blank by using yarn warps and wefts;
s2, pretreatment: desizing the fabric blank, namely desizing the fabric blank at 110 ℃ by adopting a scouring desizing agent S-310A;
s3, dyeing: padding dye liquor on the pretreated fabric at 125 ℃, and performing the procedures of pre-drying, water washing and re-drying after 20min to obtain dyed fabric;
s4, post-processing: and (3) finishing the dyed fabric obtained in the step (S3) by adopting a polyester finishing agent MT-110 to finally obtain a regenerated fabric finished product.
Example 2
Example 2 differs from example 1 in that the modified regenerated polyester fiber obtained in preparation example 3 was used for blending.
Example 3
Example 3 differs from example 1 in that the modified regenerated polyester fiber obtained in preparation example 4 was used for blending.
Example 4
Example 4 differs from example 1 in that the modified regenerated polyester fiber obtained in preparation example 5 was used for blending.
Example 5
Example 5 differs from example 4 in that the modified regenerated polyester fiber obtained in preparation example 6 was used for blending.
Example 6
Example 6 differs from example 4 in that the modified regenerated polyester fiber obtained in preparation example 7 was used for blending.
Example 7
Example 7 differs from example 4 in that the modified regenerated polyester fiber obtained in preparation example 8 was used for blending.
Example 8
Example 8 differs from example 1 in that the blend ratio was 65% modified regenerated polyester fiber, 20% sorona vegetable fiber, 15% soy protein fiber.
Example 9
Example 9 differs from example 1 in that the blend ratio was 55% modified regenerated polyester fiber, 27% sorona vegetable fiber, 18% soy protein fiber.
Comparative example
Comparative example 1: the regenerated fabric is different from example 1 in that the modified regenerated polyester fiber obtained in preparation example 9 is used for blending.
Comparative example 2: the regenerated fabric is different from example 1 in that the modified regenerated polyester fiber obtained in preparation example 10 is used for blending.
Comparative example 3: the regenerated fabric is different from example 4 in that the modified regenerated polyester fiber obtained in preparation example 11 is used for blending.
Comparative example 4: the regenerated fabric is different from example 4 in that the modified regenerated polyester fiber obtained in preparation example 12 is used for blending.
Comparative example 5: the regenerated fabric is different from the regenerated fabric in example 1 in that the blending ratio is 70% of modified regenerated polyester fiber, 10% of sorona plant fiber and 20% of soybean protein fiber.
Comparative example 6: the regenerated fabric is different from the regenerated fabric in example 1 in that the blending ratio is 65% of modified regenerated polyester fiber, 30% of sorona plant fiber and 5% of soybean protein fiber.
Comparative example 7: the regenerated fabric is different from the regenerated fabric in example 1 in that the blending ratio is 70% of modified regenerated polyester fiber, 5% of sorona plant fiber and 25% of soybean protein fiber.
Performance test
Detection method
Experiment one, antistatic property of fiber, the antistatic property of the modified regenerated polyester fiber prepared in preparation examples 2-12 is measured according to FZ/T50035-2016 synthetic fiber filament resistance test method. And (3) taking a section of fiber with the length of 100mm, adhering conductive adhesive on two ends of the fiber, testing the resistance value of the fiber at the interval of 100mm by adopting an EST121 type digital ultra-high resistance microcurrent meter, measuring the voltage of (100+/-5) V, taking an average value for 5 times, and calculating the volume specific resistance of the fiber.
Experiment two, fiber tensile properties: the modified regenerated polyester fibers prepared in preparation examples 2 to 12 were tested for tensile properties according to GB/T14344-2003, test method for tensile properties of synthetic fiber filaments, and set at a tensile speed of 100mm/min, gauge 25cm, and a pretension of 0.05cN/dtex. The instrument is a YG-061-1500 type tensile strength machine.
Experiment three, fabric air permeability: the fabric woven in examples 1/8/9 and comparative examples 5/6/7 before and after 30 times of washing was tested for air permeability according to GB/T5453-1997 determination of air permeability of textile fabrics by cutting sample size 100mm, and the used instrument was an air permeability tester TQD-G1.
Experiment four, fabric moisture absorption performance: the fabric woven by examples 1/8/9 and comparative examples 5/6/7 before and after 30 times of washing was tested for moisture absorption performance according to GB/T9995-1997 test of moisture content and moisture regain determination of textile Material-oven drying method by using a 101-0 electrothermal forced draft drying oven and a YG175 constant temperature and humidity oven.
Experiment five, antistatic properties of fabrics: the size of the cut sample is 10mm x 10mm, the sample is balanced for more than 12 hours under the constant temperature and humidity environment (20 ℃ and humidity of 70%), the resistance value is tested by an insulation resistance tester, the average value of the 20 values is taken, and the surface specific resistance values of the samples of examples 1-9 and comparative examples 1-7 before and after 30 times of washing are obtained to evaluate the antistatic performance of the woven fabric.
Detection result
The results of each performance test experiment of preparation examples 2 to 12, examples 1 to 9 and comparative examples 1 to 7 are shown in tables 1 to 3.
TABLE 1 fiber Performance test data for preparation examples 2-12
As can be seen from the comparison of the modified regenerated polyester fibers obtained in the preparation examples 2 and 3 and the combination of the table 1, the antistatic performance and the tensile performance of the prepared modified regenerated polyester fibers can be improved by firstly heating and banburying the PET reclaimed materials and then mixing the PET reclaimed materials with the modified substances of each component, which indicates that the banburying treatment of the PET reclaimed materials is favorable for better combination of the modified substances with PET materials and the antistatic and antibacterial modification of the modified substances.
Comparing preparation example 2 with preparation example 4/5/9/10 and combining table 1, it can be seen that, under the condition that the total usage amount of nano zinc oxide and nano silver powder is unchanged, the usage amount of nano zinc oxide and nano silver powder material has a larger influence on the antistatic performance of the modified regenerated polyester fiber, when the ratio of nano zinc oxide is too large or too small, the antistatic performance improvement effect of the fiber is weakened, and considering the cost consumed by the nano material, the comprehensive effect is that, when the total usage amount of nano zinc oxide and nano silver powder is unchanged, the weight ratio of nano zinc oxide to nano silver powder is 1.1:0.6, the antistatic performance of the fiber is optimal.
Comparative preparation 5 and preparation 6/7/8/11/12 in combination with Table 1, it is understood that the ratio between the total amount of itaconic anhydride-vinyl acetate copolymer microspheres and nanomaterial has a great effect on the antistatic modification of fibers when the ratio of nano zinc oxide to nano silver powder is fixed. When the total consumption of the nano materials is too large, the combination amount of the itaconic anhydride copolymer microspheres reaches the peak, the excessive nano materials are directly combined with the PET materials, the connection is not tight enough and the dispersibility is poor, and when the total consumption of the nano materials is too small, the antistatic improvement effect is poor, and the ratio of the total mass of the nano zinc oxide and the nano silver powder to the mass of the itaconic anhydride-vinyl acetate copolymer microspheres is 1.4:1, the prepared modified regenerated polyester fiber has better antistatic property and mechanical property.
TABLE 2 data on moisture absorption and air permeability test of examples 1/8/9 and comparative examples 5 to 7
As can be seen from the combination of the comparison examples 1/8/9 and the comparison examples 5/6/7 in Table 2, the blending ratio of the modified regenerated polyester fiber to the sorona plant fiber to the soybean protein fiber is within the ratio range defined in the application, so that the modified regenerated polyester fiber and the sorona plant fiber can have a larger utilization ratio to waste PET plastics, and can ensure that the woven fabric has good moisture absorption and air permeability.
TABLE 3 antistatic test data for examples 1-9 and comparative examples 1-7
| Performance testing | Pre-wash/10 9 Ω·cm | Post-wash/10 9 Ω·cm |
| Example 1 | 1.2 | 2.1 |
| Example 2 | 1.0 | 2.3 |
| Example 3 | 1.6 | 2.8 |
| Example 4 | 0.9 | 1.6 |
| Example 5 | 1.1 | 2.2 |
| Example 6 | 0.6 | 1.5 |
| Example 7 | 0.7 | 1.5 |
| Example 8 | 1.0 | 1.8 |
| Example 9 | 0.8 | 1.7 |
| Comparative example 1 | 1.8 | 2.7 |
| Comparative example 2 | 1.0 | 2.2 |
| Comparative example 3 | 1.5 | 2.9 |
| Comparative example 4 | 2.5 | 3.8 |
| Comparative example 5 | 1.9 | 2.7 |
| Comparative example 6 | 2.1 | 3.2 |
| ComparisonExample 7 | 1.8 | 2.6 |
By combining table 3, the comparative examples 1, 2-7 and 1-4 can improve the antistatic property of the prepared modified regenerated polyester fiber under the condition of improving the ratio of each component in the preparation of the modified regenerated polyester fiber and the mixing step thereof, and the modified regenerated polyester fiber can be better blended with the sorona plant fiber and the soybean protein fiber, so that the antistatic property of the woven fabric is greatly improved; in the comparative examples 1, 8, 9 and 5-7, the antistatic properties of the fabrics are greatly changed under the condition of improving the blending ratio of the three fibers, and the sodon plant fiber and the soybean protein fiber also have certain antistatic properties, so that a synergistic interaction can be generated within a certain range when the fabrics are blended with the modified regenerated polyester fiber, and the antistatic properties of the fabrics are further improved.
In summary, in the processing and manufacturing process of the regenerated fabric, the antistatic property of the regenerated polyester fiber is effectively improved, the blending processing is easy to carry out, and the regenerated polyester fiber is modified, the sorona plant fiber and the soybean protein fiber are adopted for blending weaving, so that the moisture absorption and air permeability of the fabric are remarkably improved, and the application range of the regenerated fabric is greatly widened.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.
Claims (10)
1. The regenerated fabric is characterized in that: the modified regenerated polyester fiber is formed by blending and weaving modified regenerated polyester fibers, sorona plant fibers and soybean protein fibers; the modified regenerated polyester fiber is prepared from the following components in parts by weight:
70-90 parts of PET reclaimed material
1.0 to 1.2 portions of itaconic anhydride-vinyl acetate copolymer microsphere
0.8-1.2 parts of nano zinc oxide
0.4 to 0.6 part of nano silver powder
Aliphatic polyurethane dispersion 0.5-1 parts
0.8-1 part of surface treating agent
0.05 to 0.1 part of cross-linking agent
0.01-0.05 part of compatilizer.
2. The regenerated fabric according to claim 1, wherein: the preparation of the modified regenerated polyester fiber comprises the following steps:
step one, preparing a modified PET slice, which comprises the following steps:
a. carrying out surface modification treatment on the nano zinc oxide and the nano silver powder by using a surface treating agent to obtain a modified nano mixture;
b. mixing the modified nano mixture with aliphatic polyurethane dispersion liquid, and mechanically stirring for 10-15min at normal temperature to obtain modified dispersion liquid; adding itaconic anhydride-vinyl acetate copolymer microspheres with accurate metering into the modified dispersion liquid, stirring and mixing for 15-30min to obtain a mixture;
c. melting and blending the PET reclaimed material with accurate measurement, the mixture obtained in the step b, the crosslinking agent with accurate measurement and the compatilizer to obtain a mixed material, extruding, granulating and drying the mixed material to obtain a modified PET slice; controlling the temperature condition of blending extrusion to be 265-290 ℃;
and step two, extrusion spinning.
3. The regenerated fabric according to claim 2, wherein: the second step comprises the following specific steps: taking the modified PET slices prepared in the first step as raw materials, and preparing the modified regenerated polyester fibers through melting, filtering and spinning, wherein the spinning technological parameters are as follows: the frequency of the metering pump is 50-60Hz, the spinning speed is 3100-3500m/min, the spinning temperature is 265-290 ℃, the temperature of the front hot roller is 95-100 ℃, the temperature of the rear hot roller is 140-150 ℃, the drafting multiple is 3.1-3.3, and the drafting temperature is 75-80 ℃.
4. A regenerated fabric according to claim 3, wherein: in the first step (c), the mixing specifically comprises the following steps: and d, firstly, putting the PET reclaimed material into a screw extruder for banburying, adjusting the screw rotation speed to be 400-500r/min after the screw rotation speed to be 500-600r/min and 25-30min, and putting the mixture obtained in the step b, the accurately-metered cross-linking agent and the accurately-metered compatilizer into the mixture for blending for 1.5-2h.
5. The regenerated fabric according to claim 1, wherein: the weight ratio of the nano zinc oxide to the nano silver powder is (1-1.6): (0.5-0.75); the average grain diameter of the nano zinc oxide is 10-20nm; the average grain diameter of the nanometer silver powder is 20-50nm.
6. The regenerated fabric according to claim 5, wherein: the ratio of the total mass of the nano zinc oxide and the nano silver powder to the mass of the itaconic anhydride-vinyl acetate copolymer microsphere is (1.2-1.5): 1.
7. the regenerated fabric according to claim 6, wherein: the surface treating agent is one of gamma-glycidol ether oxypropyl trimethoxy siloxane KH-560, isopropyl distearoyl oxy aluminate HY-988 and hexadecyl trimethoxy silane KH-1631.
8. The regenerated fabric according to claim 1, wherein: the cross-linking agent is one of N-aminoethyl-3-aminopropyl methyl dimethoxy silane, tetrabutyl titanate and polybutyl titanate; the compatilizer is one or more of macromolecular aminosilane mixture KH-450, silicon-aluminum polymer KY-933 and gamma-aminopropyl methyl diethoxy silane KH-902.
9. The regenerated fabric according to claim 1, wherein: the blending ratio of the modified regenerated polyester fiber to the sorona vegetable fiber to the soybean protein fiber is (40% -65%): (20% -40%): (15% -20%).
10. The process for preparing the regenerated fabric as claimed in any one of claims 1 to 9, which is characterized by comprising the following steps:
s1, blending: blending the modified regenerated polyester fiber with the sorona plant fiber and the soybean protein fiber according to a proportion to obtain warp yarn and weft yarn, and weaving the warp yarn and the weft yarn to obtain a fabric blank;
s2, pretreatment: desizing the fabric blank;
s3, dyeing: padding dye liquor on the pretreated fabric, and performing the procedures of pre-drying, water washing and re-drying to obtain dyed fabric;
s4, post-processing: and (3) finishing the dyed fabric obtained in the step (S3) by adopting a finishing agent to finally obtain a regenerated fabric finished product.
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