CN114921974A - Polyurethane synthetic leather for regenerated high-simulation luggage and preparation method thereof - Google Patents
Polyurethane synthetic leather for regenerated high-simulation luggage and preparation method thereof Download PDFInfo
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- CN114921974A CN114921974A CN202210526363.3A CN202210526363A CN114921974A CN 114921974 A CN114921974 A CN 114921974A CN 202210526363 A CN202210526363 A CN 202210526363A CN 114921974 A CN114921974 A CN 114921974A
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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
- D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
- D06N3/183—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials the layers are one next to the other
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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
- D06N3/0009—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 knitted fabrics
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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
- D06N3/0002—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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- 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
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
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- D—TEXTILES; PAPER
- 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
- D06N3/0056—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
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
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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
- D06N3/0075—Napping, teasing, raising or abrading of the resin coating
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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
- D06N3/007—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
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
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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
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
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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
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
- D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
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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
- D06N3/12—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
- D06N3/121—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 polyesters, polycarbonates, alkyds
- D06N3/123—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 polyesters, polycarbonates, alkyds with polyesters
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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
- D06N3/12—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
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- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
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- D06N2213/00—Others characteristics
- D06N2213/03—Fibrous web coated on one side with at least two layers of the same polymer type, e.g. two coatings of polyolefin
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Abstract
The invention provides a polyurethane synthetic leather for a regenerative high-simulation luggage, which comprises a surface layer, a middle layer, a bonding layer and a bottom cloth layer which are sequentially attached from outside to inside; the surface layer is made of surface layer resin slurry; the intermediate layer is made of intermediate layer resin slurry; the adhesive layer is made of an adhesive resin paste. The polyurethane synthetic leather for the regenerated high-simulation luggage adopts the regenerated and recycled raw materials, the cross section layer and the back surface of the material have the visual effect and the touch effect of animal skins with extremely similar degree, the touch leather feeling on the surface is strong, and the polyurethane synthetic leather not only brings the enjoyment feeling of the leather of a consumer, but also reflects the environmental protection concept of the consumer. The invention also provides a preparation method of the polyurethane synthetic leather for the regenerated high-simulation luggage, which comprises the following steps: (1) forming a cloth; (2) wet dipping and blade coating; (3) sanding; (4) and (5) transferring release paper.
Description
Technical Field
The invention relates to the technical field of polyurethane, in particular to polyurethane synthetic leather for a regenerated high-simulation luggage and a preparation method thereof.
Background
Through the development of many years, the polyurethane synthetic leather has the advantages of good appearance and hand feeling, various colors and varieties and the like, so that the polyurethane synthetic leather is widely applied to the aspects of home furnishing, sofas, automotive interiors, cases, office supplies, clothes and the like.
In response to the strong demand for environmentally friendly products by international brands and retailers, and to accelerate the sustainable development of textile and related coating industries, the regulatory consortium introduced the first Global Recycling Standard (GRS). GRS aims to increase the use of recycled materials in the product and reduce/eliminate the hazards posed by its production.
The prior case made of polyurethane resin has the problems of heavy weight, high cost, poor air and moisture permeability, poor aging resistance, poor waterproof and moisture-proof performance, environmental pollution and the like.
Disclosure of Invention
In view of the above technical problems, the invention aims to provide a polyurethane synthetic leather for a regenerated high-simulation luggage, which is prepared into a semi-finished product with compact and drapable feeling of a first layer cowhide through formula optimization. The invention also provides a preparation method of the polyurethane synthetic leather for the regenerated high-simulation luggage, wherein the wet process is combined with low coating weight through a one-step method, the dry process is adopted for bonding, and a solvent-free process is adopted, so that the energy is saved, the emission is reduced, no solvent is discharged, and the environment is protected.
The technical scheme adopted by the invention is as follows:
a polyurethane synthetic leather for a regenerative high-simulation luggage comprises a surface layer, an intermediate layer, a bonding layer and a bottom cloth layer which are sequentially attached from outside to inside; the surface layer is made of surface layer resin slurry; the intermediate layer is made of intermediate layer resin slurry; the adhesive layer is made of adhesive layer resin slurry;
the surface resin slurry is prepared from the following components in parts by weight:
the middle layer resin slurry is prepared from the following components in parts by weight:
the resin slurry of the adhesive layer is prepared from the following components in parts by weight:
the solvent-free resin A and the solvent-free resin B are solvent-free polyurethane resins.
The polyurethane synthetic leather for the regenerated high-simulation case disclosed by the invention is characterized in that the thickness of the surface layer is 0.02-0.05 mm; the thickness of the middle layer is 0.02-0.05 mm; the thickness of the adhesion layer is 0.2-0.4 mm.
The polyurethane synthetic leather for the regenerated high-simulation luggage comprises a surface layer resin slurry, a surface layer resin slurry and a coating agent, wherein the viscosity of the surface layer resin slurry is 3000-6000CPS/25 ℃, and the coating amount is 180 +/-20 g/m; the viscosity of the middle layer resin sizing agent is 3000-6000CPS/25 ℃, and the coating weight is 200 +/-20 g/m; the viscosity of the resin slurry of the subsequent layer requires on-line reaction, and the coating weight is 250 +/-20 g/m.
The polyurethane synthetic leather for the anti-regeneration high-simulation case and bag, disclosed by the invention, is characterized in that the bottom cloth layer is made of recycled polyester fibers and conventional polyester.
The polyurethane synthetic leather for the anti-regeneration high-simulation case comprises a base cloth layer and a base cloth layer, wherein the base cloth layer is prepared from recycled polyester fibers and conventional polyester through the processes of cloth forming, wet-process dipping slurry dipping, wet-process blade coating slurry blade coating and sanding.
The preparation method of the polyurethane synthetic leather for the anti-regeneration high-simulation luggage comprises the following steps:
(1) cloth forming: using recycled polyester fiber to independently spin and conventional polyester to blend or independently spin, processing the yarns into warp knitting knitted fabrics with the thickness specification of 1.1-1.4mm by a knitting method, and preparing base fabrics; the base fabric has a fine and dense long-hair surface and soft hand feeling, and warp knitting traces are completely shielded; the short hair surface is the surface of common single velvet and slightly has micro hair to cover the channels and collaterals of the cloth;
(2) wet impregnation and blade coating: sequentially adopting dipping slurry and blade coating slurry to carry out synthetic leather dipping and blade coating on the knitted fabric in the step (1); the long surface of the bottom cloth wool is produced along the wool on a wet machine table, the bottom cloth is fully soaked in wet-process soaking slurry through a soaking groove, a gap of 0.2-0.3mm is arranged in a soft cutter through a wet-process one-step method before the top cloth is coated, the wet-process blade coating slurry is injected into a coating-head slurry groove for blade coating, the coating-head cutter position is controlled to be lower, the thickness of the bottom cloth is selected and the cutter position of 0.2-0.8mm is added, a thin coating is formed on the long surface of the bottom cloth wool, and the thin coating is solidified through a solidification bath, washed by a water washing groove and dried by an oven to form a wet-process semi-finished product with micro-wool on the surface;
(3) sanding, sanding the front and back sides of the wet semi-finished product in the step (2), sanding the long hair side by using a soft sanding process of 150-plus 200-mesh leatheroid paper to abrade the thin coating, slightly exposing the long hair side fluff of the base fabric, and forming a suede tissue similar to that of the sanded first layer cowhide piece leather; the short rough surface is lightly rubbed and sanded by 100-sand 150-mesh leatheroid paper so as to be convenient for dry processing;
(4) transfer from release paper
(a) Preparing a surface layer: preparing the surface layer resin slurry according to the proportion, coating the surface layer resin slurry on release paper with a coating knife position of 0.1-0.2mm, drying in an oven at the temperature of 100-120 ℃ for 2-3min, and transferring the grains of the release paper to the surface;
(b) preparing an intermediate layer: preparing the intermediate layer resin slurry according to the proportion, coating the intermediate layer resin slurry on the dried surface layer in the step (1) at a coating position of 0.1-0.2mm, and drying in a drying oven at the temperature of 100-;
(c) preparation of a subsequent layer: blending the adhesive layer resin slurry according to the proportion, coating the adhesive layer resin slurry on the dried intermediate layer, and pre-drying in an oven at the temperature of 100-;
(d) attaching: after the pre-drying of the adhesion layer is finished, the adhesion position is bonded, and the bonding of the wet-process semi-finished product and the adhesion layer after sanding is realized through the setting of adhesion pressure and clearance; the pre-drying temperature is 100-;
(e) winding: after the laminating, putting the release paper and the finished product into an oven for high-temperature curing, and directly rolling;
(f) curing: curing the unseparated finished product and release paper at normal temperature for 8-24 h; and then separating the release paper from the finished product.
The invention relates to a preparation method of polyurethane synthetic leather for an anti-regeneration high-simulation suitcase, wherein in the step (2), the dipping slurry is prepared from the following raw materials in parts by weight: 100 parts of polyurethane resin, 160 parts of dimethylformamide 130 and 10-20 parts of color paste; the viscosity of the impregnation slurry was 600-1000cps/25 ℃.
The preparation method of the polyurethane synthetic leather for the anti-regeneration high-simulation case comprises the step (2), wherein the viscosity of the blade coating slurry is 500-1500cps/25 ℃.
The invention relates to a preparation method of polyurethane synthetic leather for an anti-regeneration high-simulation suitcase, wherein in the step (2), the blade coating slurry is prepared from the following raw materials in parts by weight:
100 parts of polyurethane resin, 180 parts of dimethylformamide 140-.
The preparation method of the polyurethane synthetic leather for the anti-regeneration high-simulation luggage comprises the step (d), wherein the attaching pressure is 0.5Mpa kg, and the attaching gap is 1.0 mm.
The invention has the beneficial effects that:
the polyurethane synthetic leather for the regenerated high-simulation luggage adopts the regenerated and recycled raw materials, the cross section layer and the back surface of the material have the visual effect and the touch effect of animal skins with extremely similar degrees, the touch leather feeling on the surface is strong, and the polyurethane synthetic leather not only brings the enjoyment feeling of the leather of a consumer, but also reflects the environmental protection concept of the consumer.
The preparation method of the polyurethane synthetic leather for the regenerated high-simulation luggage uses the recycled polyester fiber to be mixed with the conventional polyester spun yarn according to a certain proportion, and the mixture is processed into warp knitting/weft knitting cloth by a knitting method. The knitted fabric is used for carrying out synthetic leather resin impregnation, coating and release paper transfer processing. Finally, the luggage synthetic leather meeting the requirements of luggage customers is manufactured.
The present invention will be further described with reference to the following specific examples.
Detailed Description
The sources of the raw materials in the following examples are: solvent-free resin AHX-NS-2003A, solvent-free resin BHX-NS-2003-1B, organic silicon assistant JN3-018, flatting agent HX-514, bridging agent HX-302, catalyst HX-304 and defoaming agent DX-25 are purchased from Zhejiang Hechenxin science and technology Limited company; color pastes were purchased from Sanbao group, Inc.
Example 1
A polyurethane synthetic leather for a regenerative high-simulation luggage comprises a surface layer, an intermediate layer, a bonding layer and a bottom cloth layer which are sequentially attached from outside to inside; the surface layer is made of surface layer resin slurry; the intermediate layer is made of intermediate layer resin slurry; the adhesive layer is made of adhesive layer resin slurry;
the surface resin slurry is prepared from the following components in parts by weight:
the middle layer resin slurry is prepared from the following components in parts by weight:
the resin slurry of the adhesive layer is prepared from the following components in parts by weight:
the solvent-free resin A and the solvent-free resin B are solvent-free polyurethane resins, the solvent-free resin A is HX-NS-2003A, and the solvent-free resin B is HX-NS-2003-1B.
The viscosity of the surface layer resin sizing agent is 3000-6000CPS/25 ℃, and the coating weight is 180 +/-20 g/m; the viscosity of the middle layer resin sizing agent is 3000-6000CPS/25 ℃, and the coating weight is 200 +/-20 g/m; the viscosity of the resin slurry of the subsequent layer requires on-line reaction, and the coating weight is 250 +/-20 g/m.
The thickness of the surface layer is 0.02-0.05 mm; the thickness of the middle layer is 0.02-0.05 mm; the thickness of the adhesion layer is 0.02-0.05 mm.
The base cloth layer is prepared from recycled polyester fibers and conventional polyester through the processes of cloth forming, wet impregnation, blade coating and sanding.
The preparation method of the polyurethane synthetic leather for the anti-regeneration high-simulation luggage comprises the following steps:
(1) cloth forming: using recycled polyester fiber to independently spin and conventional polyester to blend or independently spin, processing the yarns into warp knitting knitted fabrics with the thickness specification of 1.1-1.4mm by a knitting method, and preparing base fabrics; the base fabric has fine and dense long hair surface and soft hand feeling, and warp knitting traces are completely shielded; the short hair surface is the surface of common single velvet and slightly has micro hair to cover the channels and collaterals of the cloth;
(2) and (2) wet method: respectively adopting dipping slurry and blade coating slurry to carry out synthetic leather dipping and blade coating on the knitted fabric in the step (1); the long surface of the bottom cloth wool is produced by a wet method machine along the wool, the bottom cloth is fully soaked in wet method soaking slurry through a soaking groove, the wet method blade coating slurry is thrown into a coating slurry groove for blade coating while a gap of 0.2-0.3mm is set for scraping off redundant slurry through a wet method one-step soft cutter before coating, the coating head cutter position is controlled to be lower, the thickness of the bottom cloth and the cutter position of 0.2-0.8mm are selected, a thin coating is formed on the long surface of the bottom cloth wool, the thin coating is solidified through a coagulating bath, a rinsing groove is used for rinsing, and a drying oven is used for drying to form a wet method semi-finished product with micro-wool on the surface. A one-step scheme and a micro-coating process and a sanding process are used for simulating suede tissues similar to those of first layer cowhide slices after sanding, and the hand feeling is full and full;
the impregnating slurry is prepared from the following raw materials in parts by weight: 100 parts of polyurethane resin, 160 parts of dimethylformamide and 15 parts of color paste; the preparation method comprises mixing the raw materials of the dipping slurry, and stirring for 30min to obtain dipping slurry; the viscosity of the impregnation slurry is 600-1000cps/25 ℃;
the blade coating slurry is prepared from the following raw materials in parts by weight: 100 parts of polyurethane resin, 160 parts of dimethylformamide, 40 parts of calcium carbonate, 5 parts of cellulose, 250.5 parts of defoaming agent DX and 10 parts of color paste. The preparation method comprises the following steps of mixing the raw materials of the blade coating slurry, stirring for 30min, and preparing the blade coating slurry; after vacuum deaeration for 30min, the viscosity of the blade coating slurry is 500-1500cps/25 ℃;
the wet formula adopts the matching of the filler and the resin to build the compactness and the drapability of the first layer of cowhide.
(3) Sanding, sanding the front and back sides of the wet semi-finished product in the step (2), sanding the long hair side by using a soft sanding process of 150-200-mesh sand paper to remove the thin coating, slightly exposing the long hair side fluff of the base fabric, and forming a suede tissue similar to that of a first layer of cowhide sheet after sanding; the short hair surface is lightly rubbed and sanded by 100-mesh abrasive paper so as to be convenient for dry processing;
(4) transfer from release paper
(a) Preparing a surface layer: preparing the surface layer resin slurry according to the proportion, coating the surface layer resin slurry on release paper, wherein the coating knife position is 0.15mm, drying the release paper in a drying oven at the temperature of 110 ℃ for 2min, transferring the grains of the release paper to the surface, and the thickness of the film after the surface layer is dried is 0.02-0.05 mm;
(b) preparing an intermediate layer: preparing the intermediate layer resin slurry according to the proportion, coating the intermediate layer resin slurry on the dried surface layer obtained in the step (a) with a coating cutter position of 0.1-0.2mm, drying in a drying oven at 110 ℃ for 2min, and drying the intermediate layer to obtain a film with the thickness of 0.02-0.05 mm;
(c) preparation of a subsequent layer: blending the resin slurry of the adhesion layer according to the proportion, then coating the resin slurry on the dried intermediate layer to coat the adhesion layer, and then pre-drying in an oven at 130 ℃ for 2min to serve as pre-drying; the thickness of the bonding layer after drying is 0.3 mm;
(d) bonding: after the pre-drying of the adhesion layer is finished, the adhesion position is bonded, and the bonding of the wet-process semi-finished product and the adhesion layer after sanding is realized through the setting of adhesion pressure and clearance; the pre-drying temperature is 100-; the bonding pressure is 0.5Mpa kilogram, and the bonding gap is 1.0 mm;
(e) rolling: after the laminating, putting the release paper and the finished product into an oven at the temperature of 80 ℃ for high-temperature curing, and directly rolling;
(f) curing: curing the unseparated finished product and release paper at normal temperature for 24 h; and then separating the release paper from the finished product.
The properties of the polyurethane synthetic leather for the regenerated high-simulation luggage prepared in the example 1 were tested, and the test results are shown in table 1.
Table 1 test results of the polyurethane synthetic leather for the regenerated high-simulation bag described in example 1
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (10)
1. The utility model provides a polyurethane synthetic leather for regeneration high emulation case and bag which characterized in that: the fabric comprises a surface layer, a middle layer, a bonding layer and a bottom cloth layer which are sequentially attached from outside to inside; the surface layer is made of surface layer resin slurry; the intermediate layer is made of intermediate layer resin slurry; the adhesive layer is made of adhesive layer resin slurry;
the surface resin slurry is prepared from the following components in parts by weight:
the middle layer resin slurry is prepared from the following components in parts by weight:
the resin slurry for the next layer is prepared from the following components in parts by weight:
the solvent-free resin A and the solvent-free resin B are solvent-free polyurethane resins.
2. The polyurethane synthetic leather for the regenerated high-simulation luggage as claimed in claim 1, wherein the polyurethane synthetic leather comprises the following components in percentage by weight: the thickness of the surface layer is 0.02-0.05 mm; the thickness of the middle layer is 0.02-0.05 mm; the thickness of the adhesion layer is 0.2-0.4 mm.
3. The polyurethane synthetic leather for the regenerated high-simulation luggage as claimed in claim 1, wherein the polyurethane synthetic leather comprises the following components in percentage by weight: the viscosity of the surface layer resin sizing agent is 3000-6000CPS/25 ℃, and the coating weight is 180 +/-20 g/m; the viscosity of the middle layer resin slurry is 3000-6000CPS/25 ℃, and the coating weight is 200 +/-20 g/m; the viscosity of the resin slurry of the adhesive layer requires on-line reaction, and the coating weight is 250 +/-20 g/m.
4. The polyurethane synthetic leather for the anti-regeneration high-simulation case and bag as claimed in claim 1, wherein the polyurethane synthetic leather comprises the following components: the base cloth layer is made of recycled polyester fibers and conventional polyester.
5. The polyurethane synthetic leather for the anti-regeneration high-simulation luggage as claimed in any one of claims 1 to 4, wherein: the base cloth layer is prepared by the processes of cloth forming, wet dipping slurry dipping, wet blade coating slurry blade coating and sanding of recycled polyester fibers and conventional polyester.
6. The preparation method of the polyurethane synthetic leather for the anti-regeneration high-simulation luggage of any one of claims 1 to 5 is characterized in that: the method comprises the following steps:
(1) cloth forming: using the recycled polyester fiber to spin alone and blend or spin alone with the conventional polyester, processing the yarn into warp knitting needle weaving with the thickness specification of 1.1-1.4mm by a knitting method, and preparing a base fabric;
(2) wet impregnation and blade coating: sequentially adopting dipping slurry and blade coating slurry to carry out synthetic leather dipping and blade coating on the knitted fabric in the step (1); the long surface of the bottom cloth wool is produced by a wet method machine along the wool, the bottom cloth is fully soaked in wet method soaking slurry through a soaking groove, the wet method scraping slurry is injected into a coating slurry groove for scraping while a gap of 0.2-0.3mm is arranged in a soft cutter through a wet method one-step method before coating, the coating slurry groove is used for scraping the wet method scraping slurry, the coating cutter position is controlled to be lower, the thickness of the bottom cloth is selected and the cutter position of 0.2-0.8mm is added, a thin coating is formed on the long surface of the bottom cloth wool, the bottom cloth wool is solidified through a solidification bath, a water washing groove is used for washing, and an oven is used for drying, so that a wet method semi-finished product with micro-wool on the surface is formed;
(3) sanding, sanding the front and back sides of the wet semi-finished product in the step (2), sanding the long hair side by using a soft sanding process of 150-plus 200-mesh leatheroid paper to abrade the thin coating, slightly exposing the long hair side fluff of the base fabric, and forming a suede tissue similar to that of the sanded first layer cowhide piece leather; the short rough surface is lightly rubbed and sanded by 100-sand 150-mesh leatheroid paper so as to be convenient for dry processing;
(4) transfer from release paper
(a) Preparing a surface layer: preparing the surface resin slurry according to the proportion, coating the surface resin slurry on release paper with the coating knife position of 0.1-0.2mm, drying in an oven at the temperature of 100-120 ℃ for 2-3min, and transferring the grains of the release paper to the surface;
(b) preparing an intermediate layer: preparing the middle layer resin slurry according to the proportion, coating the middle layer resin slurry on the dried surface layer in the step (1) with a coating knife position of 0.1-0.2mm, and drying in an oven at the temperature of 100-130 ℃ for 2-3 min;
(c) preparation of a subsequent layer: blending the adhesive layer resin slurry according to the proportion, coating the adhesive layer resin slurry on the dried intermediate layer, and pre-drying in an oven at the temperature of 100-;
(d) attaching: after the pre-drying of the adhesion layer is finished, the adhesion position is bonded, and the bonding of the wet-process semi-finished product and the adhesion layer after sanding is realized through the setting of the adhesion pressure and the gap; the pre-drying temperature is 100-;
(e) winding: after the laminating, putting the release paper and the finished product into an oven for high-temperature curing, and directly rolling;
(f) curing: curing the unseparated finished product and release paper at normal temperature for 8-24 h; and then separating the release paper from the finished product.
7. The preparation method of the polyurethane synthetic leather for the anti-regeneration high-simulation luggage as claimed in claim 6, wherein the preparation method comprises the following steps: the dipping slurry in the step (2) is prepared from the following raw materials in parts by weight: 100 parts of polyurethane resin, 160 parts of dimethylformamide 130 and 10-20 parts of color paste; the viscosity of the impregnation slurry was 600-1000cps/25 ℃.
8. The preparation method of the polyurethane synthetic leather for the anti-regeneration high-simulation luggage, according to claim 6, is characterized in that: the viscosity of the blade coating slurry in the step (2) is 500-1500cps/25 ℃.
9. The preparation method of the polyurethane synthetic leather for the anti-regeneration high-simulation luggage as claimed in claim 6, wherein the preparation method comprises the following steps: the blade coating slurry in the step (2) is prepared from the following raw materials in parts by weight:
100 parts of polyurethane resin, 180 parts of dimethylformamide 140-.
10. The preparation method of the polyurethane synthetic leather for the anti-regeneration high-simulation luggage as claimed in any one of claims 6 to 9, wherein the polyurethane synthetic leather comprises the following steps: in the step (d), the attaching pressure is 0.5Mpa kg, and the attaching gap is 1.0 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116556078A (en) * | 2023-05-11 | 2023-08-08 | 浙江禾欣新材料有限公司 | Preparation method of double-sided integrated super-soft wear-resistant imitation leather polyurethane synthetic leather |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005238756A (en) * | 2004-02-27 | 2005-09-08 | Seiren Co Ltd | Leather-like structure and its producing method |
| CN106436341A (en) * | 2016-11-03 | 2017-02-22 | 张家港嘉泰合成革有限公司 | Solvent-free ultrafine fiber mirror synthetic leather |
| CN107489042A (en) * | 2017-08-22 | 2017-12-19 | 安徽安利材料科技股份有限公司 | A kind of polyurethane four-side elastic synthetic leather and preparation method thereof |
| CN109468853A (en) * | 2018-09-21 | 2019-03-15 | 浙江禾欣新材料有限公司 | A kind of preparation method of the high antifungal gene polyurethane leather of two-sided foaming |
| US20210222360A1 (en) * | 2020-01-22 | 2021-07-22 | San Fang Chemical Industry Co., Ltd. | Artificial leather and manufacturing method thereof |
| CN113684693A (en) * | 2021-08-04 | 2021-11-23 | 安徽安利材料科技股份有限公司 | Polyurethane synthetic leather for regenerated fiber water-based electronic product and preparation method thereof |
-
2022
- 2022-05-16 CN CN202210526363.3A patent/CN114921974A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005238756A (en) * | 2004-02-27 | 2005-09-08 | Seiren Co Ltd | Leather-like structure and its producing method |
| CN106436341A (en) * | 2016-11-03 | 2017-02-22 | 张家港嘉泰合成革有限公司 | Solvent-free ultrafine fiber mirror synthetic leather |
| CN107489042A (en) * | 2017-08-22 | 2017-12-19 | 安徽安利材料科技股份有限公司 | A kind of polyurethane four-side elastic synthetic leather and preparation method thereof |
| CN109468853A (en) * | 2018-09-21 | 2019-03-15 | 浙江禾欣新材料有限公司 | A kind of preparation method of the high antifungal gene polyurethane leather of two-sided foaming |
| US20210222360A1 (en) * | 2020-01-22 | 2021-07-22 | San Fang Chemical Industry Co., Ltd. | Artificial leather and manufacturing method thereof |
| CN113684693A (en) * | 2021-08-04 | 2021-11-23 | 安徽安利材料科技股份有限公司 | Polyurethane synthetic leather for regenerated fiber water-based electronic product and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 马兴元等: "《合成革化学与工艺学》", 30 November 2015, 中国轻工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116556078A (en) * | 2023-05-11 | 2023-08-08 | 浙江禾欣新材料有限公司 | Preparation method of double-sided integrated super-soft wear-resistant imitation leather polyurethane synthetic leather |
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