CN110592958A - Polyurethane synthetic leather for suede three-proofing sofa furniture and preparation method thereof - Google Patents
Polyurethane synthetic leather for suede three-proofing sofa furniture and preparation method thereof Download PDFInfo
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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
- D06N3/004—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 flocked webs or pile fabrics upon which a resin is applied; Teasing, raising web before resin application
-
- 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
-
- 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
-
- 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
Abstract
The invention discloses a polyurethane synthetic leather for suede three-proofing sofa furniture and a preparation method thereof, wherein the preparation method comprises the following steps: preparing wet polyurethane slurry as impregnation slurry, and performing impregnation treatment on the single-sided velvet substrate to obtain a wet semi-finished product; sanding the surface of the wet semi-finished product to obtain a fluffy semi-finished product; preparing a printing material, and printing the velvet semi-finished product to obtain suede leather with three-dimensional patterns; and spraying organic silicon-fluorine waterproof material on the suede leather to obtain the final product. The organic silicon fluorine waterproof material is a fluorine-containing organic silicon substance, and is subjected to a crosslinking action with the base fabric fiber and the polyurethane resin through the synergistic action with the closed isocyanate crosslinking agent and through drying, so that the performances of solvent resistance, aging resistance, dirt resistance and the like of the product are improved, the final product has strong downy feeling, the appearance is exactly like cloth art, and the product has the effects of fine internal hand feeling, natural gloss, excellent touch feeling and the like which are close to real leather.
Description
Technical Field
The invention belongs to the technical field of synthetic leather preparation, and particularly relates to polyurethane synthetic leather for suede three-proofing sofa furniture and a preparation method thereof.
Background
The polyurethane synthetic leather is a kind of artificial leather synthetic leather which uses various base cloth as base material, and coats polyurethane resin on the base material to make it have various patterns, functions and hand feeling. With the improvement of the grade and quality requirements of people on daily products, synthetic leather with single performance can not meet the requirements of consumers, synthetic leather with good waterproof and antifouling functions is favored by the consumers, and the cloth sofa leather on the market at present has various colors, but is not waterproof, antifouling and inconvenient to clean. The pile-feeling synthetic leather is few, mainly comprises nubuck foaming resin, is difficult to control in process and high in cost, and has a pile-feeling effect partly through pile-feeling release paper transfer, but the pile-feeling effect is not strong, so that the development of the pile-feeling three-proofing polyurethane synthetic leather for sofa furniture has wide market prospect.
Disclosure of Invention
The invention aims to provide the polyurethane synthetic leather for the suede three-proofing sofa furniture and the preparation method thereof, and the prepared product has the advantages of strong velvet feeling, cloth art-like appearance, fine and smooth internal hand feeling, natural luster, excellent touch feeling and effect close to real leather.
The purpose of the invention is realized by the following technical scheme:
a preparation method of polyurethane synthetic leather for suede three-proofing sofa furniture comprises the following steps:
(1) preparing wet polyurethane slurry as impregnation slurry, enabling the raised surface of the single-sided velvet substrate to face upwards, carrying out impregnation treatment on the single-sided velvet substrate, and then sequentially carrying out coagulation, washing and drying to obtain a wet semi-finished product;
(2) sanding the surface of the wet semi-finished product to obtain a fluffy semi-finished product;
(3) preparing a printing material, and printing the velvet semi-finished product to obtain suede leather with three-dimensional patterns;
(4) spraying organic silicon-fluorine waterproof materials on the suede leather, and drying to obtain the polyurethane synthetic leather for suede three-proofing sofa furniture; the organic silicon-fluorine waterproof material is prepared from the following components in parts by weight: 100 parts of organic silicon fluorine waterproof resin and 2-5 parts of blocked isocyanate crosslinking agent.
In the step (1), the wet polyurethane slurry is prepared from the following components in parts by weight:
in a further scheme, in the step (1), the single-sided velvet base material is cotton-like velvet.
In the step (1), the thickness of the single-sided velvet base material is 0.65-1.0mm, and the thickness of the wet-process semi-finished product is 0.95-1.3 mm.
Further, in the step (2), the sanding is performed in a roller type buffing machine, the sand paper used for sanding is 180-320 meshes, and the sanding is performed once respectively in the forward sanding direction and the reverse sanding direction, and the thickness of the prepared fluffy semi-finished product is 0.85-1.2 mm.
In the step (3), the printing material is prepared from the following components in parts by weight:
100 parts of water-based printing resin,
2-5 parts of a closed isocyanate crosslinking agent,
0-5 parts of water-based color paste.
Further, in the step (4), the drying temperature is 140 ℃ to 160 DEG C
The invention also aims to provide the suede three-proofing polyurethane synthetic leather for sofa furniture, which is prepared by the preparation method.
Compared with the prior art, the invention has the beneficial effects that:
(1) materials such as modified organosilicon wear-resistant auxiliary agent, water splashing agent, polytetrafluoroethylene and the like are introduced into the wet polyurethane slurry, so that the prepared wet semi-finished product has better wear resistance and waterproof performance, and the modified organosilicon wear-resistant auxiliary agent can improve the scratch resistance and wear resistance of the product.
(2) According to the invention, the polyurethane synthetic leather for suede three-proofing sofa furniture is prepared by spraying the organic silicon-fluorine waterproof material on the suede leather, and the damage of the suede leather suede effect caused by the roller extrusion of the traditional roller coating or impregnation process can be reduced by the spraying process; in addition, the organic silicon fluorine waterproof material is a fluorine-containing organic silicon substance, the organic silicon contains active groups such as hydrogen atoms and hydroxyl groups, and the organic silicon is crosslinked with base fabric fibers and polyurethane resin through drying under the synergistic action of a closed isocyanate crosslinking agent to obtain a durable water repellent effect, so that the performances of solvent resistance, aging resistance, dirt resistance and the like of the product are improved.
(3) The product prepared by the method has strong surface velvet feeling, excellent three-proofing (waterproof, oil-proof and antifouling) effects, fabric-like appearance, comfort and close to real leather, and the subsequent procedures of wet-process semi-finished products are water-based material processing, so that the preparation process of the product is green and pollution-free.
Detailed Description
The present invention will be further described with reference to the following examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The types and suppliers of reagents used in the following examples were as follows:
the polyether polycarbon type resin SW-6920H is a combined fertilizer and Anli chemical company; the closed isocyanate crosslinking agent FB-15 can be used for both water and oil, Shanghai Sisheng materials Co., Ltd; the organic silicon fluorine waterproof resin HY-803 is a product of Jinling auxiliary agent factories, and can endow PU leather with good durability, water repellency, oil repellency and antifouling performance; a modified organosilicon wear-resistant additive SY-3520, Jiangxi Sanyue New materials Co., Ltd; surfactant SF-7 build Hair Co chemical Co Ltd; softener LK-156, Kyoto chemical Co-fertilizer; water-splashing agent IST-5210, Korea three company; defoamer OH/60, nuoqi environmental protection science and technology ltd, jin hu county; lignin, JRS, germany; the water-based printing resin is DJ-5804, Zhejiang Luoxing industries, Inc.;
the color paste types and manufacturers are as follows: the BLPN-560 black paste is from Zhejiang deep blue materials science and technology GmbH; the NH-W15 water-based black pulp, the NH-W913 water-based yellow pulp, the NH-321 water-based red pulp, the NH-114 yellow pulp and the NH-177 red pulp are all from Shanghai Nippon commercial Co.
The reagents are only used for illustrating the sources and components of the reagents used in the experiment of the invention, so as to fully disclose the invention, and do not mean that the invention can not be realized by using other similar reagents or other reagents provided by other suppliers, and all other embodiments obtained by a person skilled in the art without creative efforts based on the experiment disclosed in the embodiment belong to the protection scope of the invention.
Example 1:
a preparation method of polyurethane synthetic leather for suede three-proofing sofa furniture comprises the following steps:
(1) preparing wet-process polyurethane slurry as impregnation slurry, wherein the raised surface of the single-sided velvet substrate faces upwards, the thickness of the single-sided velvet substrate is 0.65mm, and after the impregnation treatment of the single-sided velvet substrate, sequentially performing condensation, washing and drying by using a DMF (dimethyl formamide) solution to obtain a wet-process semi-finished product with the thickness of 1.0mm, which is marked as S0; the wet polyurethane slurry is prepared from the following components in parts by weight:
(2) sanding the surface of the wet semi-finished product by using a roller type buffing machine to obtain a fluffy semi-finished product, wherein the abrasive paper used for sanding is 240 meshes, the sanding is performed once respectively in a forward sanding mode and a reverse sanding mode, and the thickness of the fluffy semi-finished product after sanding is 0.9 mm;
(3) preparing a printing material, and printing the velvet feeling semi-finished product to obtain suede leather with three-dimensional patterns, wherein the suede leather is marked as a product A; the printing material is prepared from the following components in parts by weight:
100 portions of waterborne printing resin
2 parts of blocked isocyanate crosslinking agent
2 parts of NH-W15 aqueous black slurry.
(4) Spraying organic silicon-fluorine waterproof materials on the suede leather, and drying at 140 ℃ to obtain the polyurethane synthetic leather for suede three-proofing sofa furniture, and marking as a product B; the organic silicon-fluorine waterproof material is prepared from the following components in parts by weight: 100 parts of organic silicon fluorine waterproof resin and 3 parts of blocked isocyanate crosslinking agent.
Table 1 three-proofing performance testing of product a and product B prepared in example 1
The results in table 1 show that the silicone fluorine waterproof material formed by mixing the silicone fluorine waterproof resin and the blocked isocyanate crosslinking agent is sprayed in the step (4), so that the product has strong surface downy feel and excellent three-proofing performance, and can pass AATCC22-2014 waterproof test 4-5, AATCC118-2013 oil-proofing test 7-8 and GB/T30159.1-2013 antifouling test (liquid staining method) 4-5, the waterproof, oil-proof and antifouling capabilities of the product are remarkably improved, and the three-proofing performance is excellent.
Comparative example 1
Taking the step (1) in the embodiment 1 as a reference, the other preparation methods are the same as the above, and different wet-process semi-finished products are prepared by only changing the dosage and the proportion of the modified organosilicon wear-resistant assistant and the polytetrafluoroethylene; when the use amounts of the modified organosilicon wear-resistant additive and the polytetrafluoroethylene are both 0, preparing a wet-process semi-finished product which is marked as S1; when the weight ratio of the modified organosilicon wear-resistant assistant to the polytetrafluoroethylene is 4:0, preparing a wet-process semi-finished product which is marked as S2; when the weight ratio of the modified organosilicon wear-resistant assistant to the polytetrafluoroethylene is 0:4, the wet-process semi-finished product is marked as S3.
The abrasion resistance of S0-S3 is detected according to GB/T21196.2-2007 Martindall abrasion resistance test method, and the detection result is shown in Table 2:
TABLE 2 abrasion resistance test results of wet-process semi-finished products S0-S3
As can be seen from table 2, the wet-process semi-finished product S0 prepared in step (1) of example 1 has excellent wear resistance, which shows that when two materials, namely, the modified organosilicon wear-resistant assistant and polytetrafluoroethylene, are mixed for use, the wear resistance of the material can be significantly improved.
Example 2:
a preparation method of polyurethane synthetic leather for suede three-proofing sofa furniture comprises the following steps:
(1) preparing wet-process polyurethane 3 slurry as impregnation slurry, wherein the raised surface of the single-sided velvet substrate faces upwards, the thickness of the single-sided velvet substrate is 1.0mm, and after impregnation treatment of the single-sided velvet substrate, sequentially performing condensation, washing and drying by using a DMF (dimethyl formamide) solution to obtain a wet-process semi-finished product with the thickness of 1.3 mm; the wet polyurethane slurry is prepared from the following components in parts by weight:
(2) sanding the surface of the wet semi-finished product by using a roller type buffing machine to obtain a fluffy semi-finished product, wherein the abrasive paper used for sanding is 200 meshes, the sanding is performed once respectively in a forward sanding mode and a reverse sanding mode, and the thickness of the fluffy semi-finished product after sanding is 1.2 mm;
(3) preparing a printing material, and printing the velvet semi-finished product to obtain suede leather with three-dimensional patterns; the printing material is prepared from the following components in parts by weight:
100 portions of waterborne printing resin
4 parts of blocked isocyanate crosslinking agent
2 parts of NH-W913 aqueous yellow slurry.
(4) Spraying organic silicon fluoride waterproof material on the suede leather, and drying at 160 ℃ to obtain the polyurethane synthetic leather for suede three-proofing sofa furniture; the organic silicon-fluorine waterproof material is prepared from the following components in parts by weight: 100 parts of organic silicon fluorine waterproof resin and 3 parts of blocked isocyanate crosslinking agent.
Example 3:
a preparation method of polyurethane synthetic leather for suede three-proofing sofa furniture comprises the following steps:
(1) preparing wet-process polyurethane slurry into impregnation slurry, wherein the raised surface of the single-sided velvet substrate faces upwards, the thickness of the single-sided velvet substrate is 0.75mm, and after the impregnation treatment of the single-sided velvet substrate, sequentially performing condensation, washing and drying by using a DMF (dimethyl formamide) solution to obtain a wet-process semi-finished product with the thickness of 1.2 mm; the wet polyurethane slurry is prepared from the following components in parts by weight:
(2) sanding the surface of the wet semi-finished product by using a roller type buffing machine to obtain a fluffy semi-finished product, wherein the sand paper used for sanding is 180 meshes, the sanding is performed once respectively in a forward sanding mode and a reverse sanding mode, and the thickness of the fluffy semi-finished product after sanding is 1.1 mm;
(3) preparing a printing material, and printing the velvet semi-finished product to obtain suede leather with three-dimensional patterns; the printing material is prepared from the following components in parts by weight:
100 portions of waterborne printing resin
5 parts of blocked isocyanate crosslinking agent
2 parts of NH-321 aqueous red pulp.
(4) Spraying organic silicon-fluorine waterproof materials on suede leather, and drying at 140 ℃ to obtain the suede three-proofing polyurethane synthetic leather for sofa furniture; the organic silicon-fluorine waterproof material is prepared from the following components in parts by weight: 100 parts of organic silicon fluorine waterproof resin and 5 parts of blocked isocyanate crosslinking agent.
Example 4:
a preparation method of polyurethane synthetic leather for suede three-proofing sofa furniture comprises the following steps:
(1) preparing wet-process polyurethane slurry into impregnation slurry, wherein the raised surface of the single-sided velvet substrate faces upwards, the thickness of the single-sided velvet substrate is 0.65mm, and after the impregnation treatment of the single-sided velvet substrate, sequentially performing condensation, washing and drying by using a DMF (dimethyl formamide) solution to obtain a wet-process semi-finished product with the thickness of 0.95 mm; the wet polyurethane slurry is prepared from the following components in parts by weight:
(2) sanding the surface of the wet semi-finished product by using a roller type buffing machine to obtain a fluffy semi-finished product, wherein the abrasive paper used for sanding is 320 meshes, the sanding is performed once respectively in a forward sanding mode and a reverse sanding mode, and the thickness of the fluffy semi-finished product after sanding is 0.85 mm;
(3) preparing a printing material, and printing the velvet semi-finished product to obtain suede leather with three-dimensional patterns; the printing material is prepared from the following components in parts by weight:
100 portions of waterborne printing resin
5 parts of blocked isocyanate crosslinking agent
5 parts of NH-321 aqueous red pulp.
(4) Spraying organic silicon-fluorine waterproof materials on suede leather, and drying at 150 ℃ to obtain the suede three-proofing polyurethane synthetic leather for sofa furniture; the organic silicon-fluorine waterproof material is prepared from the following components in parts by weight: 100 parts of organic silicon fluorine waterproof resin and 2 parts of blocked isocyanate crosslinking agent.
Claims (8)
1. A preparation method of suede three-proofing polyurethane synthetic leather for sofa furniture is characterized by comprising the following steps: the method comprises the following steps:
(1) preparing wet polyurethane slurry as impregnation slurry, enabling the raised surface of the single-sided velvet substrate to face upwards, carrying out impregnation treatment on the single-sided velvet substrate, and then sequentially carrying out coagulation, washing and drying to obtain a wet semi-finished product;
(2) sanding the surface of the wet semi-finished product to obtain a fluffy semi-finished product;
(3) preparing a printing material, and printing the velvet semi-finished product to obtain suede leather with three-dimensional patterns;
(4) spraying organic silicon fluorine waterproof material on the suede leather, and drying to obtain suede polyurethane synthetic leather for sofa furniture; the organic silicon-fluorine waterproof material is prepared from the following components in parts by weight: 100 parts of organic silicon fluorine waterproof resin and 2-5 parts of blocked isocyanate crosslinking agent.
2. The method of claim 1, wherein: in the step (1), the wet polyurethane slurry is prepared from the following components in parts by weight:
3. the method of claim 1, wherein: in the step (1), the single-sided velvet base material is cotton-like velvet.
4. The method of claim 1, wherein: in the step (1), the thickness of the single-sided velvet base material is 0.65-1.0mm, and the thickness of the wet-process semi-finished product is 0.95-1.3 mm.
5. The method of claim 1, wherein: in the step (2), the sanding is carried out in a roller type buffing machine, the sand paper used for sanding is 180-320 meshes, and the sanding is carried out once respectively along and against the sanding, and the thickness of the prepared fluffy semi-finished product is 0.85-1.2 mm.
6. The method of claim 1, wherein: in the step (3), the printing material is prepared from the following components in parts by weight:
100 parts of water-based printing resin,
2-5 parts of a closed isocyanate crosslinking agent,
0-5 parts of water-based color paste.
7. The method of claim 1, wherein: in the step (4), the drying temperature is 140-160 ℃.
8. The suede polyurethane leather for sofa furniture, which is prepared by the preparation method according to any one of claims 1 to 7.
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| CN114717715A (en) * | 2022-04-26 | 2022-07-08 | 武汉纺织大学 | Waterproof and antifouling fabric and preparation method thereof |
| CN114717715B (en) * | 2022-04-26 | 2023-11-03 | 武汉纺织大学 | Waterproof and antifouling fabric and preparation method thereof |
| CN115305730A (en) * | 2022-06-30 | 2022-11-08 | 海宁市饰雅纺织有限公司 | Production process of antifouling, color migration prevention, scraping prevention and environment-friendly technical cloth |
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Application publication date: 20191220 |