CN110644109A - Environment-friendly regenerated fabric - Google Patents

Environment-friendly regenerated fabric Download PDF

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Publication number
CN110644109A
CN110644109A CN201910854221.8A CN201910854221A CN110644109A CN 110644109 A CN110644109 A CN 110644109A CN 201910854221 A CN201910854221 A CN 201910854221A CN 110644109 A CN110644109 A CN 110644109A
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China
Prior art keywords
fabric
fibers
environment
pet
level
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CN201910854221.8A
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Inventor
陆长斌
孟怀荣
岑奇初
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Dongjing Artificial fur (ningbo) Co Ltd
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Dongjing Artificial fur (ningbo) Co Ltd
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Priority to CN201910854221.8A priority Critical patent/CN110644109A/en
Publication of CN110644109A publication Critical patent/CN110644109A/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • 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
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
    • 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
    • D03D15/50—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 properties of the yarns or threads
    • D03D15/54—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 properties of the yarns or threads coloured
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/102—Patterned fabrics or articles with stitch pattern
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/12—Patterned fabrics or articles characterised by thread material
    • D04B1/126—Patterned fabrics or articles characterised by thread material with colour pattern, e.g. intarsia fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics
    • D06C7/02—Setting
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/0076—Dyeing with mineral dye
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/34—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using natural dyestuffs
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/651—Compounds without nitrogen
    • D06P1/65106—Oxygen-containing compounds
    • D06P1/65118—Compounds containing hydroxyl groups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34—Material containing ester groups
    • D06P3/52—Polyesters
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/062—Load-responsive characteristics stiff, shape retention
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/14—Dyeability

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)

Abstract

The invention discloses an environment-friendly regenerated fabric which comprises first fibers regenerated by physical PET, wherein the titer is 2-5 denier, and the full-wool length is 50-100 mm; the denier of the chemical PET regenerated second fiber is more than 10 denier, and the full-wool length is more than 110 mm; 20-35 parts of the first fibers and 65-80 parts of the second fibers; the invention also provides a preparation method of the environment-friendly recycled fabric, which comprises the following steps: s1 weft weaving preparation; s2 weaving process; s3 pre-setting treatment; s4 desizing treatment; s5 dyeing treatment; s6, softening, drying, stylizing and shaping; s7, finishing and packaging; the invention has the beneficial effects that: the first fibers generated by physical hot melting and recycling of PET are used as weft, the second fibers generated by chemical recycling of PET are used as warp, and the fabric with good rigidity and flexibility is obtained by adopting the weft knitting jacquard principle; and the fabric is dyed by pre-dyeing the second fiber, and the fabric is dyed more firmly by using the mixed dye.

Description

Environment-friendly regenerated fabric
Technical Field
The invention relates to the field of textiles, in particular to an environment-friendly regenerated fabric.
Background
The PET regenerated fiber raw material is renewable, can be recycled by 100 percent, can be regenerated into PET by 100 percent of recycled materials, can be recycled for various industrial purposes, realizes waste utilization, develops recycling economy, effectively avoids secondary pollution, and achieves ecological environmental protection in the true sense; the existing PET regenerated fiber is produced by adopting two modes of physical melting or chemical recovery and regeneration, and has the problems that:
1. the fiber filaments obtained by physical hot melting are short fibers, the firmness of the combination of the dye and the fibers is low, and the fibers are poor in toughness and easy to tear;
2. the fibers obtained by chemical recovery and regeneration are mostly long fibers, have low rigidity and are easy to cut;
3. the fibers obtained by chemical recovery and regeneration are easy to generate fiber yarn fuzzing and block equipment due to the fact that filament aggregation is dispersed in the weaving process.
For example, the invention discloses a tear-resistant flocked and glue-bleed coating chenille sofa fabric (application number: 2013104612587), which is prepared by spinning a 1.5 x 38PET regenerated dye-free fiber yarn from a PET regenerated fiber raw material into 55Regeneration ofDyeing-free fiber yarn; the core wire is formed by two strands of equal-length PET colored regenerated fiber wires, the PET colored regenerated fiber wires are dyed after being manufactured into grey cloth, the back side of the PET colored regenerated fiber wires is needled and napped, special glue of No. 1981 is coated on the front side of the PET colored regenerated fiber wires, and then the PET colored regenerated fiber wires are dried and subjected to after-treatment to obtain a finished. Although glue is adopted to fully permeate into the fluff fibers formed after the fluff is punched so as to form a felt, color confusion caused by infirm dyeing in the re-dyeing stage of the regenerated fibers is ignored, and meanwhile, the rigidity and toughness of the fibers also need to be considered by adopting the regenerated fibers so as to weave the fabric with better rigidity and toughness.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an environment-friendly recycled fabric, so as to at least achieve the fabric with firm dyeing and better rigidity and toughness.
The purpose of the invention is realized by the following technical scheme:
an environment-friendly recycled fabric comprises first fibers and second fibers; the first fibers are first fibers regenerated by physical PET, the titer is 2-5 denier, and the full-wool length is 50-100 mm; the second fibers are regenerated by chemical PET, and have the fineness of more than 10 deniers and the full-wool length of more than 110 mm; the first fibers are 20-35 parts by mass, the second fibers are preferably 65-80 parts by mass, the first fibers regenerated by the physical PET are recycled PET bottles, the hot-melt PET is obtained through a physical hot-melt process, the first fibers are formed through spinning, and pure polyester fiber filaments are obtained.
Preferably, the second fiber is prepared by adopting recycled clothes, fabrics and PET bottles, cutting, pretreating, depolymerizing into dimethyl terephthalate and ethylene glycol through methanol, filtering, polymerizing again to form slices, and spinning to form the second fiber regenerated by chemical PTE; the methanol is depolymerized into: under the pressure of 3-5Mpa, the temperature condition is controlled to be 200-260 ℃, a methanol catalyst is added to depolymerize PET into dimethyl terephthalate and ethylene glycol, the reaction mixture is cooled, and the PET material is depolymerized by using the methanol, so that the purer polyester fiber filament regenerated by the chemical PET is obtained.
The invention also provides a preparation process of the environment-friendly recycled fabric, which comprises the following steps:
s1, warping the warp by using the first fibers as weft and the second fibers as warp to obtain uniform warp filaments; pre-dyeing the weft and then performing a wool combining procedure to obtain weft filaments;
s2, arranging the obtained warp filaments and weft filaments according to the warp and weft densities of 14-16tex, and weaving the warp filaments and the weft filaments in a staggered manner according to the weft knitting jacquard principle after the warp filaments and the weft filaments are cut by a needle knife to form a first-level fabric;
s3, pre-setting the obtained I-stage fabric: vibrating and relaxing the first-level fabric, obtaining a stylized second-level fabric through a sanding process or a napping process, judging the quality category of the second-level fabric, and entering the next step when the quality category of the second-level fabric meets the standard and above of the second-level fabric; converting the non-conforming recycled fabric into second fibers, and performing S1 and S2 until the fabric meets the B-type standard and above;
s4, soaking the fabric of the second level in an alkaline desizing pool for 6-8h, then cleaning for 40-50min, drying for 50-60S at 170 ℃ through 160-;
s5, washing and dyeing the obtained III-grade fabric for 5-6h by using a dyeing solution along the wool direction, washing for 2-4h by using an enzyme solution along the wool direction, immersing into the sizing solution for 5-7h, washing for 1-3h, and drying for 20-30min at the temperature of 160-170 ℃ to obtain an IV-grade fabric;
s6, after the softening and drying process is carried out on the obtained IV-level fabric, judging whether the fabric needs to be subjected to stylized processing treatment by a sanding process or a napping process according to the fluff amount on the fabric, and shaping the treated fabric at the temperature of 160-170 ℃ for 70-90S to obtain a V-level fabric;
and S7, performing after-treatment on the obtained V-level fabric, and packaging to obtain the environment-friendly recycled fabric.
Preferably, the weft before the wool combining step in S1 may be subjected to a pre-dyeing treatment; before the enzyme solution in the S5 is washed, dyeing can be carried out for 5-6h by adopting a dyeing solution along the hair direction; the pre-dyeing in the S1 and the dyeing liquid in the S5 adopt mixed dyes with the same color, and the mixed mineral dyes of vegetable dyes are dissolved by matching with ferment and methanol, so that the dyes are fully contacted with fiber filaments or fabrics, and the dyeing is firm.
Preferably, the alkaline desizing tank adopts industrial-grade liquid alkali, industrial-grade PVA (polyvinyl alcohol) sizing agent and industrial-grade PAC (polyaluminium chloride) sizing agent, and the industrial-grade alkaline desizing tank can be adopted to quickly treat a large amount of fabrics, so that the fabrics can be conveniently shaped and dyed subsequently
Preferably, the after-treatment is as follows: a. shaping and finishing: tentering and preshrinking: cold water is adopted for the fabric to shrink in advance, so that the size is more stable; b. and (3) appearance finishing: the press roll calendering fabric makes it glossy, and the cloth cover can harden after the calendering, through the after-treatment process, makes the color and luster and elasticity of fabric better, adopts the exogenic finish to make the fabric colour conjugation degree higher simultaneously.
The invention has the beneficial effects that:
1. the recycled PET material is regenerated into polyester fiber filaments, the first fibers generated by physical hot melting recycled PET are used as weft, the second fibers generated by chemical recycled PET are used as warp, the weft knitting jacquard principle is adopted, and therefore the fabric with good rigidity and flexibility is obtained, and meanwhile the circular economy idea is embodied.
2. The second fiber as the weft is pre-dyed, and the fabric is dyed by adopting the processes of desizing dyeing, ferment, sizing liquid and after-finishing, and simultaneously, the natural plant dye powder is utilized in the mass ratio: ore dye powder: enzyme: the mixed dye with the methanol ratio of 2:2:1:5 enables the fabric dyeing to be firmer.
Detailed Description
The technical solutions of the present invention are described in further detail below, but the scope of the present invention is not limited to the following.
Example 1
An environment-friendly recycled fabric comprises first fibers and second fibers; the first fibers are first fibers regenerated by physical PET, the titer is 2-5 denier, and the full-wool length is 50-100 mm; the second fibers are regenerated by chemical PET, and have the fineness of more than 10 deniers and the full-wool length of more than 110 mm; 30 parts of the first fibers and 60 parts of the second fibers; the first fiber is made of recycled PET bottles, hot-melt PET is obtained through a physical hot-melt process, and the first fiber is formed through spinning, so that relatively pure polyester fiber filaments are obtained; the second fiber is prepared by adopting recycled clothes, fabrics and PET bottles, chopping, pretreating, depolymerizing into dimethyl terephthalate and ethylene glycol through methanol, filtering, polymerizing again to form slices, and spinning to form a second fiber regenerated by chemical PTE; the methanol is depolymerized into: under the pressure of 5Mpa, the temperature condition is controlled to be 240 ℃, a methanol catalyst is added to depolymerize PET into dimethyl terephthalate and ethylene glycol, the reaction mixture is cooled, and the PET material is depolymerized by using the methanol, so that pure polyester fiber filaments regenerated by chemical PET are obtained.
The invention also provides a preparation process of the environment-friendly fabric, which comprises the following steps:
s1, warping the warp by using the first fibers as weft and the second fibers as warp to obtain uniform warp filaments; and (2) the weft is prepared from natural plant dye powder by mass ratio: ore dye powder: enzyme: pre-dyeing with a mixed dye of methanol 2:2:1:5, and then performing a wool-combining procedure to obtain weft filaments;
s2, arranging the obtained warp filaments and weft filaments according to the warp and weft densities of 15tex, and weaving the warp filaments and the weft filaments in a staggered manner according to the weft knitting jacquard principle after the warp filaments and the weft filaments are cut by a needle knife to form a first-level fabric;
s3, pre-setting the obtained I-stage fabric: vibrating and relaxing the first-level fabric, obtaining a stylized second-level fabric through a napping process, judging the quality category of the second-level fabric, and entering the next step when the quality category of the second-level fabric meets the standard of the B-level fabric; converting the non-conforming recycled fabric into second fibers, and performing S1 and S2 until the fabric meets the B-type standard and above;
s4, soaking the fabric of the second level in an alkaline desizing pool which adopts industrial liquid alkali, industrial PVA slurry and industrial PAC slurry for 7 hours, then cleaning for 50 minutes, drying for 55S at 170 ℃, and then shaping for 35S to form the fabric of the third level;
s5, washing and dyeing the obtained III-grade fabric for 6 hours along the wool direction by using a dyeing solution of the mixed dye in S1, washing for 3 hours along the wool direction by using an enzyme solution, immersing into the sizing solution for 6 hours, washing for 2 hours, and drying for 25min at 165 ℃ to obtain the IV-grade fabric;
s6, after the softening and drying process is carried out on the obtained IV-level fabric, judging whether the fabric needs to be subjected to stylized processing treatment by a sanding process or a napping process according to the amount of fluff on the fabric, and shaping the treated fabric at 165 ℃ for 80S to obtain a V-level fabric;
s7, carrying out after-treatment on the obtained V-th grade fabric: a. shaping and finishing: tentering and preshrinking: cold water is adopted for the fabric to shrink in advance, so that the size is more stable; b. and (3) appearance finishing: and (3) calendering the fabric by a compression roller to make the fabric glossy, hardening the fabric surface after calendering, and packaging after finishing to obtain the environment-friendly recycled fabric.
Example 2
An environment-friendly recycled fabric comprises first fibers and second fibers; the first fibers are first fibers regenerated by physical PET, the titer is 2-5 denier, and the full-wool length is 50-100 mm; the second fibers are regenerated by chemical PET, and have the fineness of more than 10 deniers and the full-wool length of more than 110 mm; the first fibers are 30 parts by mass, and the second fibers are 60 parts by mass; the first fiber regenerated by the physical PET adopts a recycled PET bottle, the hot-melt PET is obtained by a physical hot-melt process, and the first fiber is formed by spinning and forming, so that a relatively pure polyester fiber filament is obtained; the second fiber regenerated by the chemical PET is prepared by adopting recycled clothes, fabrics and PET bottles, cutting, pretreating, depolymerizing into dimethyl terephthalate and ethylene glycol by methanol, filtering, polymerizing again to form slices, and spinning to form the second fiber regenerated by the chemical PTE; the methanol is depolymerized into: under the pressure of 5Mpa, the temperature condition is controlled to be 240 ℃, a methanol catalyst is added to depolymerize PET into dimethyl terephthalate and ethylene glycol, the reaction mixture is cooled, and the PET material is depolymerized by using the methanol, so that pure polyester fiber filaments regenerated by chemical PET are obtained.
The invention also provides a preparation process of the environment-friendly fabric, which comprises the following steps:
s1, warping the warp by using the first fibers as weft and the second fibers as warp to obtain uniform warp filaments; pre-dyeing the weft by using natural plant dye powder, and then performing a wool combining procedure to obtain weft filaments;
s2, arranging the obtained warp filaments and weft filaments according to the warp and weft densities of 15tex, and weaving the warp filaments and the weft filaments in a staggered manner according to the weft knitting jacquard principle after the warp filaments and the weft filaments are cut by a needle knife to form a first-level fabric;
s3, pre-setting the obtained I-stage fabric: vibrating and relaxing the first-level fabric, obtaining a stylized second-level fabric through a napping process, judging the quality category of the second-level fabric, and entering the next step when the quality category of the second-level fabric meets the standard of the B-level fabric; converting the non-conforming recycled fabric into second fibers, and performing S1 and S2 until the fabric meets the B-type standard and above;
s4, soaking the fabric of the second level in an alkaline desizing pool which adopts industrial liquid alkali, industrial PVA slurry and industrial PAC slurry for 7 hours, then cleaning for 50 minutes, drying for 55S at 170 ℃, and then shaping for 35S to form the fabric of the third level;
s5, washing and dyeing the obtained III-grade fabric for 6 hours along the wool direction by using a dyeing solution of the mixed dye in S1, washing for 3 hours along the wool direction by using an enzyme solution, immersing into the sizing solution for 6 hours, washing for 2 hours, and drying for 25min at 165 ℃ to obtain the IV-grade fabric;
s6, after the softening and drying process is carried out on the obtained IV-level fabric, judging whether the fabric needs to be subjected to stylized processing treatment by a sanding process or a napping process according to the amount of fluff on the fabric, and shaping the treated fabric at 165 ℃ for 80S to obtain a V-level fabric;
s7, carrying out after-treatment on the obtained V-th grade fabric: a. shaping and finishing: tentering and preshrinking: cold water is adopted for the fabric to shrink in advance, so that the size is more stable; b. and (3) appearance finishing: and (3) calendering the fabric by a compression roller to make the fabric glossy, hardening the fabric surface after calendering, and packaging after finishing to obtain the environment-friendly recycled fabric.
Example 3
An environment-friendly recycled fabric comprises first fibers; the first fibers are first fibers regenerated by physical PET, the titer is 2-5 denier, and the full-wool length is 50-100 mm; the first fiber regenerated by the physical PET adopts a recycled PET bottle, the hot-melt PET is obtained through a physical hot-melt process, and the first fiber is formed through spinning and forming, so that a relatively pure polyester fiber filament is obtained.
The invention also provides a preparation process of the environment-friendly fabric, which comprises the following steps:
s1, the first fibers are used as warps and wefts, and the warps are subjected to axial warping to obtain uniform warp filaments; and (2) the weft is prepared from natural plant dye powder by mass ratio: ore dye powder: enzyme: pre-dyeing with a mixed dye of methanol 2:2:1:5, and then performing a wool-combining procedure to obtain weft filaments;
s2, arranging the obtained warp filaments and weft filaments according to the warp and weft densities of 15tex, and weaving the warp filaments and the weft filaments in a staggered manner according to the weft knitting jacquard principle after the warp filaments and the weft filaments are cut by a needle knife to form a first-level fabric;
s3, pre-setting the obtained I-stage fabric: vibrating and relaxing the first-level fabric, obtaining a stylized second-level fabric through a napping process, judging the quality category of the second-level fabric, and entering the next step when the quality category of the second-level fabric meets the standard of the B-level fabric; the non-conforming fabric is taken as a recycled fabric;
s4, soaking the fabric of the second level in an alkaline desizing pool which adopts industrial liquid alkali, industrial PVA slurry and industrial PAC slurry for 7 hours, then cleaning for 50 minutes, drying for 55S at 170 ℃, and then shaping for 35S to form the fabric of the third level;
s5, washing and dyeing the obtained III-grade fabric for 6 hours along the wool direction by using a dyeing solution of the mixed dye in S1, washing for 3 hours along the wool direction by using an enzyme solution, immersing into the sizing solution for 6 hours, washing for 2 hours, and drying for 25min at 165 ℃ to obtain the IV-grade fabric;
s6, after the softening and drying process is carried out on the obtained IV-level fabric, judging whether the fabric needs to be subjected to stylized processing treatment by a sanding process or a napping process according to the amount of fluff on the fabric, and shaping the treated fabric at 165 ℃ for 80S to obtain a V-level fabric;
s7, carrying out after-treatment on the obtained V-th grade fabric: a. shaping and finishing: tentering and preshrinking: cold water is adopted for the fabric to shrink in advance, so that the size is more stable; b. and (3) appearance finishing: and (3) calendering the fabric by a compression roller to make the fabric glossy, hardening the fabric surface after calendering, and packaging after finishing to obtain the environment-friendly recycled fabric.
Example 4
An environment-friendly recycled fabric comprises second fibers; the second fibers are regenerated by chemical PET, and have the fineness of more than 10 deniers and the full-wool length of more than 110 mm; the regenerated second fibers of the chemical PET are made of recycled clothes, fabrics and PET bottles, and are subjected to chopping, pretreatment, secondary glycol and cooling of a reaction mixture, and the PET materials are depolymerized by using methanol, so that relatively pure regenerated polyester fiber filaments of the chemical PET are obtained.
The invention also provides a preparation process of the environment-friendly fabric, which comprises the following steps:
s1, using the second fibers as warps and wefts, and warping the warps through axial warping to obtain uniform warp filaments; and (2) the weft is prepared from natural plant dye powder by mass ratio: ore dye powder: enzyme: pre-dyeing with a mixed dye of methanol 2:2:1:5, and then performing a wool-combining procedure to obtain weft filaments;
s2, arranging the obtained warp filaments and weft filaments according to the warp and weft densities of 15tex, and weaving the warp filaments and the weft filaments in a staggered manner according to the weft knitting jacquard principle after the warp filaments and the weft filaments are cut by a needle knife to form a first-level fabric;
s3, pre-setting the obtained I-stage fabric: vibrating and relaxing the first-level fabric, obtaining a stylized second-level fabric through a napping process, judging the quality category of the second-level fabric, and entering the next step when the quality category of the second-level fabric meets the standard of the B-level fabric; converting the non-conforming recycled fabric into a second fiber regenerated by chemical PET, and then carrying out the steps S1 and S2 until the fabric meets the B-type standard and above;
s4, soaking the fabric of the second level in an alkaline desizing pool which adopts industrial liquid alkali, industrial PVA slurry and industrial PAC slurry for 7 hours, then cleaning for 50 minutes, drying for 55S at 170 ℃, and then shaping for 35S to form the fabric of the third level;
s5, washing and dyeing the obtained III-grade fabric for 6 hours along the wool direction by using a dyeing solution of the mixed dye in S1, washing for 3 hours along the wool direction by using an enzyme solution, immersing into the sizing solution for 6 hours, washing for 2 hours, and drying for 25min at 165 ℃ to obtain the IV-grade fabric;
s6, after the softening and drying process is carried out on the obtained IV-level fabric, judging whether the fabric needs to be subjected to stylized processing treatment by a sanding process or a napping process according to the amount of fluff on the fabric, and shaping the treated fabric at 165 ℃ for 80S to obtain a V-level fabric;
s7, carrying out after-treatment on the obtained V-th grade fabric: a. shaping and finishing: tentering and preshrinking: cold water is adopted for the fabric to shrink in advance, so that the size is more stable; b. and (3) appearance finishing: and (3) calendering the fabric by a compression roller to make the fabric glossy, hardening the fabric surface after calendering, and packaging after finishing to obtain the environment-friendly recycled fabric.
Example 5
An environment-friendly recycled fabric, comprising: the fabric is made of polyester fiber with fineness of 2 deniers and full wool length of more than 110 mm.
The invention also provides an environment-friendly regenerated fabric, which comprises the following steps: s1, using the polyester fibers as warps and wefts, and warping the warps through axial warping to obtain uniform warp filaments; and (2) the weft is prepared from natural plant dye powder by mass ratio: ore dye powder: enzyme: pre-dyeing with a mixed dye of methanol 2:2:1:5, and then performing a wool-combining procedure to obtain weft filaments;
s2, arranging the obtained warp filaments and weft filaments according to the warp and weft densities of 15tex, and weaving the warp filaments and the weft filaments in a staggered manner according to the weft knitting jacquard principle after the warp filaments and the weft filaments are cut by a needle knife to form a first-level fabric;
s3, pre-setting the obtained I-stage fabric: vibrating and relaxing the first-level fabric, obtaining a stylized second-level fabric through a napping process, judging the quality category of the second-level fabric, and entering the next step when the quality category of the second-level fabric meets the standard of the B-level fabric; the non-conforming fabric is taken as a recycled fabric;
s4, soaking the fabric of the second level in an alkaline desizing pool which adopts industrial liquid alkali, industrial PVA slurry and industrial PAC slurry for 7 hours, then cleaning for 50 minutes, drying for 55S at 170 ℃, and then shaping for 35S to form the fabric of the third level;
s5, washing and dyeing the obtained III-grade fabric for 6 hours along the wool direction by using a dyeing solution of the mixed dye in S1, washing for 3 hours along the wool direction by using an enzyme solution, immersing into the sizing solution for 6 hours, washing for 2 hours, and drying for 25min at 165 ℃ to obtain the IV-grade fabric;
s6, after the softening and drying process is carried out on the obtained IV-level fabric, judging whether the fabric needs to be subjected to stylized processing treatment by a sanding process or a napping process according to the amount of fluff on the fabric, and shaping the treated fabric at 165 ℃ for 80S to obtain a V-level fabric;
s7, carrying out after-treatment on the obtained V-th grade fabric: a. shaping and finishing: tentering and preshrinking: cold water is adopted for the fabric to shrink in advance, so that the size is more stable; b. and (3) appearance finishing: and (3) calendering the fabric by a compression roller to make the fabric glossy, hardening the fabric surface after calendering, and packaging after finishing to obtain the environment-friendly recycled fabric.
Respectively soaking the fabrics obtained in example 1, example 2, example 3, example 4 and example 5 into an oxidation decolorant, and calculating the time required for starting to completely decolor;
wear and tear tests were performed: and (3) wearing for 10min at 2000r/s under the condition of 400g weight, and calculating the wear rate:
Figure BDA0002197837060000071
in the formula G1For the weight of the facing before abrasion, G2The weight of the abraded back charge;
recording tear 1m under 1000N tension2The time required by the fabric; the above data were summarized to give table 1.
Table 1 fabric performance data
Type of facing Decolorization time min The wear rate is% Tear time min
Example 1 50 20 35
Example 2 18 22 33
Example 3 26 33 32
Example 4 15 41 28
Example 5 12 45 24
As can be seen from Table 1, after the fabric provided by the invention is subjected to the process, the decoloring time is 50min, the wear rate is 20% and the tearing time is 35min, which fully shows that the fabric prepared by the invention is firm in dyeing, and good in rigidity and toughness.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The environment-friendly regenerated fabric is characterized in that: comprises a first fiber and a second fiber; the first fibers are first fibers regenerated by physical PET, the titer is 2-5 denier, and the full-wool length is 50-100 mm; the second fibers are regenerated by chemical PET, and have the fineness of more than 10 deniers and the full-wool length of more than 110 mm; the first fibers are 20-35 parts by mass, and the second fibers are 65-80 parts by mass.
2. The environment-friendly recycled fabric according to claim 1, wherein: the first fibers are made of recycled PET bottles, hot-melt PET is obtained through a physical hot-melt process, and the first fibers are formed through spinning.
3. The environment-friendly recycled fabric according to claim 1, wherein: the second fiber is prepared from recycled clothes, fabrics and PET bottles through cutting, pretreating, depolymerizing into dimethyl terephthalate and ethylene glycol through methanol, filtering, polymerizing again to form chips, and spinning to obtain the chemical PTE regenerated second fiber.
4. The environment-friendly recycled fabric according to claim 3, wherein: the pretreatment comprises the following steps: and (3) immersing the cut recovered material into a 5% sodium hydroxide solution, soaking for 5h, neutralizing for 3h by using a 5% hydrochloric acid solution, airing, soaking for 2h by using methanol, and filtering to obtain PET particles.
5. The environment-friendly recycled fabric according to claim 3, wherein: the methanol is depolymerized into: under the pressure of 3-5Mpa, the temperature condition is controlled to be 200-260 ℃, a methanol catalyst is added to depolymerize PET into dimethyl terephthalate and ethylene glycol, and the reaction mixture is cooled.
6. The preparation process of the environment-friendly regenerated fabric is characterized by comprising the following steps of: the method comprises the following steps:
s1, using the first fibers as wefts and the second fibers as warps, warping the warps through axial warping to obtain uniform warp filaments, and performing a wool-combining procedure to obtain weft filaments;
s2, arranging the obtained warp filaments and weft filaments according to the warp and weft densities of 14-16tex, and weaving the warp filaments and the weft filaments in a staggered manner according to the weft knitting jacquard principle after the warp filaments and the weft filaments are cut by a needle knife to form a first-level fabric;
s3, pre-setting the obtained I-stage fabric: vibrating and relaxing the first-level fabric, obtaining a stylized second-level fabric through a sanding process or a napping process, judging the quality category of the second-level fabric, and entering the next step when the quality category of the second-level fabric meets the standard and above of the second-level fabric; converting the non-conforming recycled fabric into second fibers, and performing S1 and S2 until the fabric meets the B-type standard and above;
s4, soaking the fabric of the second level in an alkaline desizing pool for 6-8h, then cleaning for 40-50min, drying for 50-60S at 170 ℃ through 160-;
s5, washing the obtained III-grade fabric for 2-4h by using an enzyme solution along the hair direction, immersing the fabric into the sizing liquid for 5-7h, washing for 1-3h, and drying for 20-30min at the temperature of 160-;
s6, after the softening and drying process is carried out on the obtained IV-level fabric, judging whether the fabric needs to be subjected to stylized processing treatment by a sanding process or a napping process according to the fluff amount on the fabric, and shaping the treated fabric at the temperature of 160-170 ℃ for 70-90S to obtain a V-level fabric;
and S7, performing after-treatment on the obtained V-level fabric, and packaging to obtain the environment-friendly recycled fabric.
7. The preparation process of the environment-friendly recycled fabric according to claim 6, characterized by comprising the following steps: the weft before the wool combining process in the S1 can be subjected to pre-dyeing treatment; before the enzyme solution in the S5 is washed, dyeing can be carried out for 5-6h by adopting a dyeing solution along the hair direction; the pre-dyeing in the S1 and the dyeing solution in the S5 adopt mixed dyes with the same color.
8. The preparation process of the environment-friendly recycled fabric according to claim 7, characterized by comprising the following steps: the mixed dye comprises the following components in percentage by mass: ore dye powder: enzyme: methanol 2:2:1: 5.
9. The preparation process of the environment-friendly recycled fabric according to claim 6, characterized by comprising the following steps: the alkaline desizing pool adopts industrial liquid caustic soda, industrial PVA slurry and industrial PAC slurry.
10. The preparation process of the environment-friendly recycled fabric according to claim 6, characterized by comprising the following steps: the after-treatment comprises the following steps: a. shaping and finishing: tentering and preshrinking: cold water is adopted for the fabric to shrink in advance; b. and (3) appearance finishing: and (5) calendering the fabric by using a compression roller.
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