CN114941247A - Production process of low-carbon environment-friendly microfiber synthetic leather base cloth - Google Patents
Production process of low-carbon environment-friendly microfiber synthetic leather base cloth Download PDFInfo
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- CN114941247A CN114941247A CN202210779187.4A CN202210779187A CN114941247A CN 114941247 A CN114941247 A CN 114941247A CN 202210779187 A CN202210779187 A CN 202210779187A CN 114941247 A CN114941247 A CN 114941247A
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- 239000004744 fabric Substances 0.000 title claims abstract description 64
- 229920001410 Microfiber Polymers 0.000 title claims abstract description 56
- 239000003658 microfiber Substances 0.000 title claims abstract description 56
- 239000002649 leather substitute Substances 0.000 title claims abstract description 42
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000001035 drying Methods 0.000 claims abstract description 50
- 239000000835 fiber Substances 0.000 claims abstract description 50
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 22
- 239000004698 Polyethylene Substances 0.000 claims abstract description 20
- -1 polyethylene Polymers 0.000 claims abstract description 20
- 229920000573 polyethylene Polymers 0.000 claims abstract description 20
- 238000007598 dipping method Methods 0.000 claims abstract description 19
- 229920000728 polyester Polymers 0.000 claims abstract description 19
- 238000010409 ironing Methods 0.000 claims abstract description 18
- 238000007711 solidification Methods 0.000 claims abstract description 13
- 230000008023 solidification Effects 0.000 claims abstract description 13
- 238000005406 washing Methods 0.000 claims abstract description 13
- 238000002074 melt spinning Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 42
- 229920005749 polyurethane resin Polymers 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 17
- 239000004814 polyurethane Substances 0.000 claims description 16
- 229920002635 polyurethane Polymers 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 12
- 229920005862 polyol Polymers 0.000 claims description 12
- 150000003077 polyols Chemical class 0.000 claims description 12
- 238000009987 spinning Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000005470 impregnation Methods 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 6
- 239000012948 isocyanate Substances 0.000 claims description 6
- 150000002513 isocyanates Chemical class 0.000 claims description 6
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 6
- 239000008158 vegetable oil Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000009960 carding Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 25
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- 239000002028 Biomass Substances 0.000 description 4
- 229920002292 Nylon 6 Polymers 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 229920004933 Terylene® Polymers 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000010985 leather Substances 0.000 description 3
- 239000003607 modifier Substances 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000008199 coating composition Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/141—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes mixture of two or more polyurethanes in the same layer
-
- 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
- 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
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/76—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres otherwise than in a plane, e.g. in a tubular way
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0036—Polyester fibres
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0038—Polyolefin fibres
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1607—Degradability
- D06N2209/1614—Biodegradable
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- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
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Abstract
The invention discloses a production process of low-carbon environment-friendly microfiber synthetic leather base cloth, which comprises the steps of mixing recycled polyester chips with polyethylene for melt spinning to obtain non-island sea-island staple fibers with recycled polyester as islands and polyethylene as sea, carrying out needling on the sea-island staple fibers to prepare non-woven fabrics, and carrying out ironing, dipping, solidification, washing, toluene extraction, drying, oiling, drying and other processes on the non-woven fabrics to prepare the low-carbon environment-friendly microfiber synthetic leather base cloth. The production process of the low-carbon environment-friendly microfiber synthetic leather base cloth solves a series of environmental pollution problems caused by the traditional synthetic leather preparation process, and accords with the ecological environment-friendly production concept advocated by the current society.
Description
Technical Field
The invention relates to the technical field of synthetic leather, in particular to a production process of low-carbon environment-friendly microfiber synthetic leather base cloth.
Background
With the continuous development of national economy of China, chemical products are closely related to clothes, food, lives and rows of people and are an important part of the national economy, but the accompanying problem of environmental pollution is increasingly serious, so that the chemical products are especially important in environmental protection, and the recycling of raw materials is important. The terylene is used as an important variety in synthetic fibers particularly widely, but the traditional terylene fiber raw materials are synthesized by petrochemical products, cannot meet the requirements of environmental protection and recycling, in order to reduce environmental pollution, improve the material utilization rate and reduce carbon emission, some manufacturers use waste polyester bottle chips, spinning waste silk, foam and pulp blocks as raw materials, and prepare recycled terylene chips through crushing, cleaning, drying and granulation.
The traditional preparation process of the microfiber synthetic leather base fabric requires that nylon 6 and polyethylene are subjected to melt spinning to prepare a non-woven fabric, and then the non-woven fabric is subjected to the working procedures of ironing, dipping, solidification, washing, toluene extraction, oiling, drying, leather kneading and the like, wherein Polyurethane (PU) used for dipping of the non-woven fabric is a polymer with a repeated structural unit of a urethane chain segment and prepared by the reaction of isocyanate and polyol, and is one of six synthetic materials which are mainly developed in the world at present. Because the raw materials for producing polyester and polyether polyol are petrochemical products, and the prepared polyurethane has the defects of nondegradable property, difficult recycling and environmental pollution, the search for a biodegradable polyurethane material is one of ideal ways for solving the problem. The biomass sources for preparing the biomass polyol reported at present mainly comprise sucrose, starch, cellulose, lignin, vegetable oil, rosin and the like, a proper polyurethane material synthesized by directly acting the bio-based polyol and isocyanate is found, and the method can also bring a change to the traditional synthetic leather preparation process, and achieve the purposes of protecting the environment and reducing the carbon emission.
Disclosure of Invention
The invention aims to provide a production process of low-carbon environment-friendly microfiber synthetic leather base cloth, solves a series of environmental pollution problems caused by a traditional synthetic leather preparation process, and conforms to the ecological environment-friendly production concept advocated by the current society.
In order to achieve the above purpose, the solution of the invention is:
a production process of low-carbon environment-friendly microfiber synthetic leather base cloth adopts sea island short fibers of recycled polyester chips and polyethylene mixed melt spinning, and comprises the following steps:
step 1, blending and spinning recycled polyester chips and polyethylene in a weight ratio of 50-52: 48-50 at a spinning temperature of 295-300 ℃ and a vehicle speed of 55-62 m/min to obtain fibers, and sequentially oiling, drafting, curling, drying and cutting the fibers to obtain sea-island short fibers with the length of 50-51 mm and the fineness of 6.0-7.2 deniers;
step 2, sequentially feeding, opening, carding, lapping, pre-needling by a pre-needling machine and needling by a needling machine to the sea-island short fibers obtained in the step 1 to obtain the sea-island short fibers with the gram weight of 520-540 g/m 2 The three-dimensionally crosslinked nonwoven fabric of (a);
step 3, ironing the non-woven fabric obtained in the step 2 at 130-135 ℃ to obtain the non-woven fabric with the thickness of 1.68-1.74 mm and the density of 0.31-0.32 g/cm 3 Ironing cloth and rolling;
step 4, dipping the ironing cloth obtained in the step 3 in dipping liquid at the speed of 5-5.5 m/min, wherein the temperature of the dipping liquid is 40-45 ℃, and obtaining the microfiber grey cloth filled with polyurethane;
the impregnation liquid is composed of the following raw materials in parts by weight:
and 5, sequentially solidifying the microfiber grey cloth obtained in the step 4, washing with water, extracting with toluene, drying, oiling and drying to obtain the microfiber synthetic leather base cloth with the fiber number of 0.0005-0.001 denier.
In the step 1, the fiber is cooled by blowing air, the fiber is cooled to 18-20 ℃, and oiling liquid used for oiling is 4% -4.5% AT-11.
In the step 4, the bio-based polyurethane resin XCW-30E and the bio-based polyurethane resin XCW-90E are polyurethane materials synthesized by using vegetable oil-based polyol and isocyanate as raw materials.
In the step 5, the solidification liquid adopted for solidification consists of 40-45% of DMF and 55-60% of water, and the temperature of the solidification liquid is 30-35 ℃.
In the step 5, the temperature of the water washing is 50-60 ℃.
In the step 5, toluene at the temperature of 80-85 ℃ is used for extracting the polyethylene in the microfiber grey cloth.
In the step 5, the drying temperature before oiling and the drying temperature after oiling are both 145-155 ℃.
In the step 5, the drying is performed in multiple stages, wherein the drying temperature in the first stage is 145-150 ℃, the drying temperature in the second stage-Nth stage is 150-155 ℃, and the drying temperature in the (N + 1) th stage is 145-150 ℃.
In the step 5, oiling liquid adopted for oiling is 5% XM-310.
After the technical scheme is adopted, the production process of the low-carbon environment-friendly microfiber synthetic leather base cloth adopts the recycled polyester chips and the polyethylene to be mixed and melt-spun to obtain the sea-island staple fiber with the recycled polyester as islands and the polyethylene as sea, the sea-island short fiber is produced into non-woven fabric through a needling process, then the non-woven fabric is subjected to the processes of ironing, dipping, solidifying, washing, toluene extracting, drying, oiling, drying and the like to produce the low-carbon environment-friendly superfine fiber synthetic leather base fabric with the filament number of 0.0005-0.001 denier, the polyester chip recovered from the spinning raw material is a reprocessed material from recovered materials such as waste polyester bottle chips, spinning waste silk, foam materials, pulp lumps and the like, has wide sources and low cost, the prepared base fabric has excellent physical properties, is an environment-friendly low-carbon new material with high-grade real leather feeling, and can be used for producing products such as environment-friendly microfiber synthetic leather and the like through subsequent dry veneering.
The production process of the low-carbon environment-friendly microfiber synthetic leather base cloth adopts recycled polyester chips as spinning raw materials, technological parameters of each step need to be readjusted, and firstly, the spinning temperature is controlled to be 295-300 ℃, the speed is 55-62 m/min, so that polyester and polyethylene can be melted in the spinning process, and island short fibers of a non-fixed island are obtained; secondly, the formula of the impregnation liquid of the non-woven fabric is adjusted, two components of bio-based polyurethane resin XCW-30E and bio-based polyurethane resin XCW-90E are selected, bio-based polyol is prepared from biomass resources, and the bio-based polyol is further reacted with isocyanate to synthesize a green environment-friendly polyurethane material.
Further, in the step 1, the obtained fibers are cooled by blowing air, the fibers are cooled to 18-20 ℃, and the fibers are prevented from flying due to expansion.
Further, in the step 4, the bio-based polyurethane resin XCW-30E and the bio-based polyurethane resin XCW-90E are polyurethane materials synthesized by using vegetable oil-based polyol and isocyanate as raw materials, the vegetable oil-based polyol replaces petrochemical polyol, and a biodegradable bio-based polyurethane product with a proper quality index reaching the level of petrochemical product is found, so that the consumption of disposable mineral resources such as petroleum and the application of harmful chemical products can be reduced, a high value-added utilization approach is provided for the biomass material, and the introduction of the vegetable oil-based polyol enables the polyurethane material to have biodegradability and the pollution of the polyurethane product to the environment is reduced.
Furthermore, the drying adopts multi-stage drying, so that the product can be shaped and the aim of saving energy is fulfilled.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
Firstly, preparation
Example 1
1) Preparation of
A. Preparing an impregnation liquid: the impregnation liquid consists of the following raw materials in parts by weight:
20 parts of bio-based polyurethane resin XCW-30E, 78 parts of bio-based polyurethane resin XCW-90E, 0.5 part of hand feeling regulator NO10A 0.5, 28 parts of DMF, 5 parts of filler EVA 8005, 0.5 part of foam pore regulator SD-8I and 2 parts of color paste;
B. preparing a solidification solution: the solidification solution consists of 40% of DMF and 60% of water;
C. preparing oiling liquid: 4.5% AT-11
5％XM-310。
2) Preparation of
A production process of low-carbon environment-friendly microfiber synthetic leather base cloth adopts recycled polyester chips and polyethylene as raw materials of sea-island staple fibers, and comprises the following steps:
step 1, mixing and melting recycled polyester chips and polyethylene in a weight ratio of 50:50 for spinning AT 295 ℃ and a speed of 55m/min to obtain fibers, cooling the fibers by circular air blowing, cooling the fibers to 18-20 ℃, and then sequentially performing oiling, drafting, curling, drying and cutting treatment to obtain sea-island short fibers with the length of 50mm and the fineness of 6.0 denier, wherein oiling liquid adopted for oiling is 4.5% AT-11;
step 2, the sea-island short fibers obtained in the step 1 are sequentially fed, opened, carded and pavedPre-needling by a net and pre-needling machine and needling by a needling machine to obtain the product with the gram weight of 520g/m 2 The three-dimensionally crosslinked nonwoven fabric of (a);
step 3, ironing the non-woven fabric obtained in the step 2 at 130 ℃ to prepare the non-woven fabric with the thickness of 1.68mm and the density of 0.31g/cm 3 Ironing cloth and rolling;
step 4, dipping the ironing cloth obtained in the step 3 in dipping liquid at the speed of 5m/min, wherein the temperature of the dipping liquid is 40 ℃, and obtaining the microfiber grey cloth filled with polyurethane;
and step 5, sequentially solidifying, washing, extracting toluene from the microfiber grey cloth obtained in the step 4, drying, oiling and drying to obtain the microfiber synthetic leather base cloth with the fiber fineness of 0.0005-0.001 denier.
In step 5, the temperature of the coagulation liquid is 30 ℃ and the temperature of water washing is 50 ℃.
In the step 5, toluene with the temperature of 80 ℃ is used for extracting the polyethylene in the microfiber grey cloth.
In the step 5, the drying temperature is 145-150 ℃, multi-stage drying is adopted for drying, the drying temperature in the first stage is 145 ℃, the drying temperature in the second stage to the fourth stage is 150 ℃, and the drying temperature in the fifth stage is 145 ℃.
In the step 5, oiling liquid adopted for oiling is 5% XM-310.
Example 2
1) Preparation of
A. Preparing a steeping liquid: the impregnation liquid consists of the following raw materials in parts by weight:
22 parts of bio-based polyurethane resin XCW-30E, 80 parts of bio-based polyurethane resin XCW-90E, 0.6 part of hand feeling regulator NO10A 0.6, 32 parts of DMF, 8 parts of filler EVA 8008, 0.8 part of foam hole regulator SD-8I and 3 parts of color paste;
B. preparing a solidification liquid: the coagulating liquid consists of 45% of DMF and 55% of water;
C. preparing oiling liquid: 4.0% AT-11
5％XM-310。
2) Preparation of
A production process of low-carbon environment-friendly microfiber synthetic leather base cloth adopts recycled polyester chips and polyethylene as raw materials of sea-island staple fibers, and comprises the following steps:
step 1, mixing and melt spinning recycled polyester chips and polyethylene according to a weight ratio of 52:48, wherein the spinning temperature is 300 ℃, the speed is 62m/min, then cooling the fiber by circular air blowing, cooling the fiber to 18-20 ℃, and then sequentially carrying out oiling, drafting, curling, drying and cutting treatment to obtain sea-island short fiber with the length of 50mm and the fineness of 7.2 denier, wherein oiling liquid adopted for oiling is 4.0% AT-11;
step 2, sequentially feeding, opening, carding, lapping, pre-needling by a pre-needling machine and needling by a needling machine to the sea-island short fibers obtained in the step 1 to obtain the sea-island short fibers with the gram weight of 540g/m 2 The three-dimensionally crosslinked nonwoven fabric of (a);
step 3, ironing the non-woven fabric obtained in the step 2 at 135 ℃ to prepare the non-woven fabric with the thickness of 1.74mm and the density of 0.32g/cm 3 Ironing cloth and rolling;
step 4, dipping the ironing cloth obtained in the step 3 in dipping liquid at the speed of 5.5m/min, wherein the temperature of the dipping liquid is 45 ℃, and obtaining the microfiber grey cloth filled with polyurethane;
and 5, sequentially solidifying, washing, extracting toluene from the microfiber grey cloth obtained in the step 4, drying, oiling and drying to obtain the microfiber synthetic leather base cloth with the fiber number of 0.0005-0.001 denier.
In step 5, the temperature of the coagulation liquid is 35 ℃ and the temperature of the water washing is 60 ℃.
In the step 5, toluene at 85 ℃ is used for extracting the polyethylene in the microfiber grey cloth.
In the step 5, the drying temperature is 150-155 ℃, multi-stage drying is adopted for drying, the drying temperature in the first stage is 150 ℃, the drying temperature in the second stage to the fourth stage is 155 ℃, and the drying temperature in the fifth stage is 150 ℃.
In the step 5, oiling liquid adopted for oiling is 5% XM-310.
In the above embodiment, the recycled polyester chip is purchased from Guangdong Yingzhu practice control company Limited, the bio-based polyurethane resin XCW-30E and the bio-based polyurethane resin XCW-90E are purchased from Xuchuan chemical company Limited, the hand feeling modifier NO10A is purchased from cigarette Taifu Song environmental protection technology Limited, the filler EVA800 is purchased from Shangjiang Dong silver trade company Limited, the bubble hole modifier SD-8I is purchased from Shanghai Geigh chemical company Limited, the oiling liquid AT-11 is purchased from Yixing Aitai environmental protection company Limited, and the oiling liquid XM-310 is purchased from Shanghai Xinmai textile auxiliary company Limited.
Comparative example 1 production process of conventional microfiber synthetic leather base cloth
1) Preparation of
A. Preparing a steeping liquid: the impregnation liquid consists of the following raw materials in parts by weight:
the adhesive comprises, by weight, P-306030 parts of polyurethane resin, H-509070 parts of polyurethane resin, 10. 10A 0.3 parts of a hand feeling regulator NO, 30 parts of DMF (dimethyl formamide), and 2 parts of color paste;
B. preparing a solidification solution: the coagulating liquid consists of 40% of DMF and 60% of water;
C. preparing oiling liquid: 4.5% AT-11
5％XM-310。
2) Preparation of
A production process of microfiber synthetic leather base cloth adopts nylon 6 and polyethylene as raw materials of sea-island short fibers, and comprises the following steps:
step 1, mixing nylon 6 and polyethylene in a weight ratio of 50:50 for melt spinning AT a spinning temperature of 175 ℃ and a vehicle speed of 55m/min to obtain fibers, cooling the fibers by circular air blowing, cooling the fibers to 22-25 ℃, and sequentially performing oiling, drafting, curling, drying and cutting treatment to obtain sea-island short fibers with the length of 50mm and the fineness of 5-6 denier, wherein oiling liquid adopted for oiling is 4.5% AT-11;
step 2, adopting a known method to sequentially feed, open, comb, lay a net, pre-prick by a pre-pricking machine and prick by a needle machine to the sea-island short fibers obtained in the step 1 to obtain the sea-island short fibers with the gram weight of 470g/m 2 The nonwoven fabric of (1);
step 3, ironing the non-woven fabric obtained in the step 2 at 130 ℃ to prepare the non-woven fabricThe thickness is 1.68mm, and the density is 0.28g/cm 3 Ironing cloth and rolling;
step 4, dipping the ironing cloth obtained in the step 3 in dipping liquid at the speed of 5m/min, wherein the temperature of the dipping liquid is 40 ℃, and obtaining the polyurethane modified microfiber grey cloth;
step 5, sequentially solidifying, washing, extracting toluene and drying the microfiber grey cloth obtained in the step 4, and finally oiling and drying to obtain common microfiber base cloth;
in step 5, the temperature of the solidification liquid is 30 ℃, the temperature of water washing is 50 ℃, and the temperature of drying is 145 ℃.
In the step 5, oiling liquid adopted for oiling is 5% XM-310.
In the above comparative examples, nylon 6 was purchased from Changle Henshengshi fiber science and technology, Inc., polyurethane resin P-3060 and polyurethane resin H-5090 were purchased from Qingdao Tiantian chemical, Inc., and hand feeling modifier NO10A was purchased from cigarette Taifu environmental protection science and technology, Inc.
Second, application
The microfiber synthetic leather base cloth prepared in each embodiment and the comparative example is subjected to dry veneering, and the general process of the dry veneering comprises the following steps: the first coating and the second coating of the release paper have the following coating formulas: resin LB-9045100 parts, DMF 60 parts, MEK 20 parts, and color chips 5-10 parts; coating amount of one coat: 0.15mm, coating amount of two coats: 0.15 mm; drying temperature of first coating and second coating: 70-100 ℃; the coating formula of the third coating is as follows: resin LB-1038100 parts, DMF 20 parts, MEK 20 parts; coating amount of three coats: 0.25 mm; sticking base cloth, and drying at the temperature: 135-140 ℃, vehicle speed: 10-12 m/min, and separating the paper and the leather to obtain the microfiber synthetic leather.
Third, comparison of physical Properties
The physical properties of the microfiber synthetic leather prepared in examples and comparative examples were tested, wherein the peel strength was measured according to the test method of GB/T8949-20085.9, the tear strength was measured according to the test method of GB/T8949-20085.8, and the tensile strength was measured according to the test method of GB/T8949-20085.7.
TABLE 1 comparison of physical Properties of two types of microfiber synthetic leather
The microfiber synthetic leather prepared by the method is soft in hand feeling, and the data in table 1 show that the physical properties of the environment-friendly microfiber base cloth prepared by the method are equivalent to those of common microfiber base cloth in peel strength, and the tear strength and the tensile strength of the environment-friendly microfiber base cloth are obviously superior to those of the common microfiber base cloth.
Practice proves that all indexes of the microfiber synthetic leather base cloth prepared by the invention meet requirements, the comprehensive quality reaches the international leading level, the microfiber synthetic leather base cloth is put into use at present, the market demand tends to increase rapidly, and the microfiber synthetic leather base cloth has great market potential.
The above embodiments are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should be considered as not departing from the scope of the present invention.
Claims (9)
1. A production process of low-carbon environment-friendly microfiber synthetic leather base cloth is characterized by comprising the following steps: the sea-island fiber prepared by mixing and melt spinning the recycled polyester chips and polyethylene comprises the following steps:
step 1, mixing and melt spinning recycled polyester chips and polyethylene in a weight ratio of 50-52: 48-50 at a spinning temperature of 295-300 ℃ and a vehicle speed of 55-62 m/min to obtain fibers, and sequentially oiling, drafting, curling, drying and cutting the fibers to obtain sea-island short fibers with the length of 50-51 mm and the fineness of 6.0-7.2 deniers;
step 2, sequentially feeding, opening, carding, lapping, pre-needling by a pre-needling machine and needling by a needling machine to the sea-island short fibers obtained in the step 1 to obtain the sea-island short fibers with the gram weight of 520-540 g/m 2 The three-dimensionally crosslinked nonwoven fabric of (a);
step 3, ironing the non-woven fabric obtained in the step 2 at 130-135 ℃ to obtain the non-woven fabric with the thickness of 1.68-1.74 mm and the density of 0.31-0.32 g/cm 3 Ironing cloth and rolling;
step 4, dipping the ironing cloth obtained in the step 3 in a dipping solution at the speed of 5-5.5 m/min, wherein the temperature of the dipping solution is 40-45 ℃, and obtaining the microfiber grey cloth filled with polyurethane;
the impregnation liquid is composed of the following raw materials in parts by weight:
and 5, sequentially solidifying the microfiber grey cloth obtained in the step 4, washing with water, extracting with toluene, drying, oiling and drying to obtain the microfiber synthetic leather base cloth with the fiber number of 0.0005-0.001 denier.
2. The production process of the low-carbon environment-friendly microfiber synthetic leather base cloth according to claim 1, which is characterized in that: in the step 1, the fiber is cooled by blowing air, the fiber is cooled to 18-20 ℃, and oiling liquid used for oiling is 4% -4.5% AT-11.
3. The production process of the low-carbon environment-friendly microfiber synthetic leather base cloth according to claim 1, which is characterized in that: in the step 4, the bio-based polyurethane resin XCW-30E and the bio-based polyurethane resin XCW-90E are polyurethane materials synthesized by using vegetable oil-based polyol and isocyanate as raw materials.
4. The production process of the low-carbon environment-friendly microfiber synthetic leather base cloth according to claim 1, which is characterized in that: in the step 5, the solidification liquid adopted for solidification consists of 40-45% of DMF and 55-60% of water, and the temperature of the solidification liquid is 30-35 ℃.
5. The production process of the low-carbon environment-friendly microfiber synthetic leather base cloth according to claim 1, which is characterized in that: in the step 5, the temperature of the water washing is 50-60 ℃.
6. The production process of the low-carbon environment-friendly microfiber synthetic leather base cloth according to claim 1, which is characterized in that: in the step 5, the toluene is extracted, and the polyethylene in the microfiber grey cloth is extracted by using the toluene at the temperature of 80-85 ℃.
7. The production process of the low-carbon environment-friendly microfiber synthetic leather base cloth according to claim 1, which is characterized in that: in the step 5, the drying temperature before oiling and the drying temperature after oiling are both 145-155 ℃.
8. The production process of the low-carbon environment-friendly microfiber synthetic leather base cloth according to claim 7, which is characterized in that: in the step 5, the drying is performed in multiple stages, wherein the drying temperature in the first stage is 145-150 ℃, the drying temperature in the second stage-Nth stage is 150-155 ℃, and the drying temperature in the (N + 1) th stage is 145-150 ℃.
9. The production process of the low-carbon environment-friendly microfiber synthetic leather base cloth according to claim 1, which is characterized in that: in the step 5, oiling liquid adopted for oiling is 5% XM-310.
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