CN110592957A - Waterborne directly-coated sofa leather - Google Patents
Waterborne directly-coated sofa leather Download PDFInfo
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- CN110592957A CN110592957A CN201910781046.4A CN201910781046A CN110592957A CN 110592957 A CN110592957 A CN 110592957A CN 201910781046 A CN201910781046 A CN 201910781046A CN 110592957 A CN110592957 A CN 110592957A
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- 239000004744 fabric Substances 0.000 claims abstract description 96
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- 239000002002 slurry Substances 0.000 claims abstract description 24
- 238000005187 foaming Methods 0.000 claims abstract description 20
- 238000010409 ironing Methods 0.000 claims abstract description 19
- 238000005096 rolling process Methods 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 10
- 238000004049 embossing Methods 0.000 claims abstract description 7
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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
- D06N3/0043—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
-
- 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
-
- 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
- D06N3/04—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 by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/042—Acrylic polymers
-
- 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
- D06N3/145—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 two or more layers of 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
-
- 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
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention belongs to the technical field of leather, and particularly relates to water-based directly-coated sofa leather which comprises a water-based directly-coated sofa leather production process, wherein the water-based directly-coated sofa leather comprises leather base cloth, bottom blank filling, a cover, ironing, a foaming layer, middle layer slurry coating, surface rolling slurry, embossing, top layer effect slurry and finished cloth.
Description
Technical Field
The invention belongs to the technical field of leather, and particularly relates to water-based directly-coated sofa leather.
Background
The leather is animal skin which is obtained by physical and chemical processing such as unhairing, tanning and the like and is denatured and non-perishable. The leather is formed by tightly weaving natural protein fibers in a three-dimensional space, and the surface of the leather is provided with a special grain surface layer which has natural grains and luster and comfortable hand feeling. In the process of human evolution, people find that juice or mineral oil of some plants has certain tanning property on leather, and raw leather is more breathable and antiseptic through the soaking of the juice. So that the board has the physicochemical properties of softness, tear resistance, bending resistance and the like. The leather in this period really has the characteristics of leather products. And this juice we call tanning agent. The tanning industry developed to the mid of the last century to form stable tanning agents is broadly divided into the following three categories:
1. vegetable tanning agent: mainly tannin extract is used for industrial leather or ground leather.
2. Mineral tanning agent: mainly comprises chromium salt and aluminum salt, and is used for various civil leathers. Such as clothing and the like.
3. Organic tanning agent: mainly comprises formaldehyde, glutaraldehyde and the like, and is used for fur and various fine and miscellaneous fur.
And on the day of 2017, 10 and 27, preliminarily finishing and referring to a carcinogen list published by the international cancer research institution of the world health organization, and processing leather products into a category 3 carcinogen list.
The leather base cloth is divided into two types
PU leather base cloth: the leather has the characteristics of high strength, high density and high ration, the comprehensive performance is superior to that of needled cloth and woven cloth, and the manufactured leather has soft and plump hand feeling, high tensile strength, good air permeability and good simulation effect.
PVC leather base cloth: the leather has the characteristics of smooth surface and high strength, and the prepared leather is good in smoothness and strong in simulation sense.
Generally, the artificial leather has two layers, and the lower layer is a leather-based material like a cloth woven fabric, but the texture is better and worse.
In China, people are used to refer to artificial leather produced by taking PVC resin as a raw material as PVC artificial leather (artificial leather for short); the artificial leather produced by using the PU resin as a raw material is called PU artificial leather (PU leather for short): the artificial leather produced by using PU resin and non-woven fabric as raw materials is called PU synthetic leather (synthetic leather for short). The development of the industries of Chinese artificial leather and synthetic leather becomes a new industry with considerable development potential, and the industries are prominently characterized by the following characteristics: (1) the artificial leather and the synthetic leather have developed rapidly, and the market is increasingly widened nowadays, and a great variety of leather products with colors in daily life are visible everywhere, such as indoor decorations, sofa fabrics, automobile interiors, clothes, shoes, bags and the like, and people often think that the products are made of natural leather, but not all the leather products have a considerable share occupied by the artificial leather and the synthetic leather. In China, people are used to refer to artificial leather produced by taking PVC resin as a raw material as PVC artificial leather (called artificial leather for short); the artificial leather produced by using the PU resin as a raw material is called PU artificial leather (PU leather for short); the artificial leather produced by using PU resin and non-woven fabric as raw materials is called PU synthetic leather (synthetic leather for short). The artificial leather and synthetic leather have been developed internationally for more than 60 years, and the artificial leather is developed and produced in China since 1958, which is an earlier developed industry in the plastic industry in China. In recent years, the development of the industries of Chinese artificial leather and synthetic leather not only increases the equipment production line of production enterprises, the product yield increases year by year, and the variety and the color increase year by year, but also has own industry organization in the industry development process and has considerable cohesion, so that the enterprises of Chinese artificial leather and synthetic leather, including related industries, can be organized together to develop a rather powerful industry. After PVC artificial leather, PU synthetic leather is used as an ideal substitute of natural leather through 30 years of intensive research and development of scientific and technical experts, and a breakthrough technical progress is obtained. PU coating on fabric surfaces was first introduced in the market in the 50 th 20 th century, and as of 1964, a PU synthetic leather for use as an upper was developed by dupont in the united states. After a set of production lines of 60 ten thousand square meters are built by Japan companies, and after more than 20 years of continuous research and development, the PU synthetic leather is rapidly increased in product quality, variety and yield. The performance of the leather is closer to natural leather, and certain performance even exceeds the natural leather, so that the leather is difficult to distinguish from the natural leather, and the leather occupies an important position in the daily life of human beings. Nowadays, japan is the largest country for producing synthetic leather, and products of several companies such as korea, imperial, dongli, and chiffon basically represent the development level of 90 s of the international 20 th century. The fiber and non-woven fabric manufacture of the polyurethane fiber is developed towards the superfine, high-density and high-non-woven effect, the PU manufacture is developed towards PU dispersion liquid and PU aqueous emulsion, the application field of products is continuously widened, and the polyurethane fiber is developed from the initial fields of shoes and bags to other special application fields of clothes, balls, decoration and the like, and is in all aspects of daily life of people. (2) The challenge of artificial leather and synthetic leather to natural leather is that natural leather has excellent natural characteristics and is widely used for producing daily necessities and industrial products, but with the increase of the world population, the demand of human beings on leather is multiplied, and the natural leather with limited quantity can not meet the demand of people for a long time. In order to solve the contradiction, scientists begin to research and develop artificial leather and synthetic leather for decades to make up for the deficiency of natural leather. The historical process of research for more than 50 years is the process of challenging artificial leather and synthetic leather to natural leather. Scientists began with research and analysis of chemical composition and texture of natural leather, started with nitrocellulose varnished cloth, and entered into PVC artificial leather, which is the first generation product of artificial leather. Scientists have made various improvements and searches on this basis, first an improvement in the substrate, followed by a modification and improvement in the coating resin. In the 70 s of the 20 th century, the non-woven fabrics of synthetic fibers have the processes of needling web formation, bonding web formation and the like, so that the base materials have lotus root-shaped sections and hollow fiber shapes, and the porous structure is achieved, thereby meeting the requirements of the mesh structure of natural leather; the surface layer of the synthetic leather can be a polyurethane layer with a micro-pore structure, which is equivalent to the grain surface of natural leather, so that the appearance and the internal structure of the PU synthetic leather are gradually close to those of the natural leather, other physical properties are close to the indexes of the natural leather, the color is brighter than that of the natural leather, the normal-temperature folding resistance of the PU synthetic leather reaches more than 100 ten thousand times, and the low-temperature folding resistance of the PU synthetic leather also can reach the level of the natural leather. The appearance of the superfine fiber PU synthetic leather is the third generation artificial leather. The non-woven fabric with the three-dimensional structure network creates a condition which is superior to natural leather for synthetic leather in the aspect of base material. The product combines the newly developed PU slurry dipping and composite surface layer processing technology with an open pore structure, and plays the huge surface area and strong water absorption effect of the superfine fiber, so that the superfine PU synthetic leather has the inherent moisture absorption characteristic of natural leather of the fasciculate superfine collagen fiber, and can be compared favorably with high-grade natural leather from the aspects of internal microstructure, appearance texture, physical characteristics, wearing comfort of people and the like. In addition, the chemical resistance, quality uniformity, large-scale production processing adaptability, water resistance, mildew resistance and the like of the superfine fiber synthetic leather are better than those of natural leather. Practice proves that various excellent performances of the synthetic leather cannot be replaced by natural leather, and the synthetic leather greatly replaces the natural leather with insufficient resources by analyzing from markets at home and abroad.
The microfiber is short for superfine fiber PU synthetic leather, and is prepared by preparing a three-dimensional structure network non-woven fabric by carding and needling superfine fiber staple fibers, and finally preparing the superfine fiber synthetic leather by wet processing, PU resin impregnation, alkali reduction, buffing, dyeing and finishing and other processes.
The high-strength high-toughness high-cold-resistance high-air-permeability high-aging-resistance high-strength high-toughness high-strength. The disadvantages of the leather are high cost, complex production process and lighter weight than leather. The specific gravity of the dermis is generally 0.6, the specific gravity of the microfiber is 0.3-0.5, and the hand feeling and the dermis have certain difference.
Compared with the prior art:
people feel love from natural leather because the natural leather has excellent moisture absorption and dehumidification functions, but the natural leather is regrettable due to the defects of material sources and the environmental pollution in the production process, and the problems of cloth defects, such as thinness, loose appearance, poor hand feeling and easiness in wrinkling in use are overcome by using textile cloth as the base cloth of the leather and adding the process and the material of the leather.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides water-based directly-coated sofa leather which has the characteristics of thickness, good hand feeling, air permeability, moisture permeability and strong labor intensity of real leather.
In order to achieve the purpose, the invention provides the following technical scheme: a water-based directly-coated sofa leather comprises a water-based directly-coated sofa leather production process, wherein the water-based directly-coated sofa leather comprises leather base cloth, bottom blank filling, a cover, ironing, a foaming layer, coating middle layer slurry, rolling surface slurry, embossing, top layer effect slurry and finished cloth;
the production process of the water-based directly-coated sofa leather comprises the following steps:
(1) selecting materials: selecting leather base cloth as bottom cloth; the soft leather base cloth is filled to enable the cloth to have the texture of real leather, and the polyurethane coating of the real leather is added, so that the environment-friendly and non-aging real leather sofa leather is really realized;
(2) filling: filling the base embryo, and extruding 50% of soft micromolecular polyurethane, 2% of JFC penetrating agent and 48% of water; the polyurethane is extruded into the cloth by rolling, so that the leather is left in the cloth after being dried, and the cloth has thick and soft real leather feeling;
(3) and a cover: firstly, rolling acrylic resin on the surface of the cloth, and then sequentially coating wax solution, softening agent and water, wherein the mixture ratio of the acrylic resin to the wax solution is 60%, the mixture ratio of the softening agent to the wax solution is 3%, and the mixture ratio of the softening agent to the water is 34%; the macromolecular acrylic resin is coated on the surface of the cloth in a rolling way, so that a layer of surface film is formed on the surface of the cloth, and wax solution, a softening agent and water coated behind are prevented from penetrating into the cloth;
(4) ironing: ironing the surface of the cloth into a mirror surface by using an ironing machine, wherein the ironing machine has the temperature of 120 ℃ and the pressure of 3kg/cm2(ii) a The surface of the cloth is ironed into a mirror surface by utilizing the high temperature and the low pressure of an ironing machine, so that the surface of the cloth is flat and smooth;
(5) and a foaming layer: rolling and coating the polyurethane thermal foaming resin and the color paste on cloth, wherein the mixture ratio of the polyurethane thermal foaming resin to the color paste is 85 percent, the mixture ratio of the color paste to the polyurethane thermal foaming resin to the color paste is 10 percent, and the mixture ratio of the water to the polyurethane thermal foaming resin to the color paste is 5 percent;
(6) coating middle layer slurry: coating the middle layer of the cloth with slurry;
(7) rolling dough slurry: coating with resin of leather coating, wherein the mixture ratio of the medium molecular soft polyurethane to the leather comprehensive resin is 38 percent, the mixture ratio of the color paste to the leather comprehensive resin is 45 percent, the mixture ratio of the color paste to the leather comprehensive resin is 10 percent, the mixture ratio of the softening agent to the wax liquid is 2 percent, and the mixture ratio of the leather matting filler to the leather comprehensive resin is 2; the resin which is beneficial to genuine leather coating is coated, so that the genuine leather feeling is stronger, and the coating is softer and stiffer in texture.
(7) And embossing: pressing the outer surface of the cloth into a flower shape;
(8) top layer effect slurry: coating the top layer of the cloth with the gloss oil coated with the genuine leather, wherein the ingredients are 40% of the gloss oil, 35% of the matte gloss oil, 1% of the hand feeling agent, 2% of the cross-linking agent and 22% of water; the gloss oil coated by the leather makes the cloth closer to the leather coating, so that the cloth has better hand feeling and stronger fastness;
(9) and finished cloth; forming finished cloth, and finishing and packaging.
Preferably, the invention uses high-quality textile cloth as base cloth, and combines the technology of genuine leather spraying to realize the direct-coating water-based excellent leather with genuine leather hand feeling and texture.
Compared with the prior art, the invention has the beneficial effects that: the invention uses high-quality textile cloth as base cloth, and combines with the technology of spraying genuine leather to realize the direct-coating water-based excellent leather with genuine leather hand feeling and texture.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the process flow structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Example 1
Referring to fig. 1, the present invention provides the following technical solutions: a water-based directly-coated sofa leather comprises a water-based directly-coated sofa leather production process, wherein the water-based directly-coated sofa leather comprises leather base cloth, bottom blank filling, a cover, ironing, a foaming layer, coating middle layer slurry, rolling surface slurry, embossing, top layer effect slurry and finished cloth;
the production process of the water-based directly-coated sofa leather comprises the following steps:
(1) selecting materials: selecting leather base cloth as bottom cloth; the cloth has the texture of genuine leather by filling the soft leather base cloth, and the environment-friendly and non-aging genuine leather cloth is really realized by coating the genuine leather with polyurethane;
(2) filling: filling the base embryo, and extruding 50% of soft micromolecular polyurethane, 2% of JFC penetrating agent and 48% of water; the polyurethane is extruded into the cloth by rolling, so that the leather is left in the cloth after being dried, and the cloth has thick and soft real leather feeling;
(3) and a cover: firstly, rolling acrylic resin on the surface of the cloth, and then sequentially coating wax solution, softening agent and water, wherein the mixture ratio of the acrylic resin to the wax solution is 60%, the mixture ratio of the softening agent to the wax solution is 3%, and the mixture ratio of the softening agent to the water is 34%; the macromolecular acrylic resin is coated on the surface of the cloth in a rolling way, so that a layer of surface film is formed on the surface of the cloth, and wax solution, a softening agent and water coated behind are prevented from penetrating into the cloth;
(4) ironing: ironing the surface of the cloth into a mirror surface by using an ironing machine, wherein the ironing machine has the temperature of 120 ℃ and the pressure of 3kg/cm2(ii) a The surface of the cloth is ironed into a mirror surface by utilizing the high temperature and the low pressure of an ironing machine, so that the surface of the cloth is flat and smooth;
(5) and a foaming layer: rolling and coating the polyurethane thermal foaming resin and the color paste on cloth, wherein the mixture ratio of the polyurethane thermal foaming resin to the color paste is 85 percent, the mixture ratio of the color paste to the polyurethane thermal foaming resin to the color paste is 10 percent, and the mixture ratio of the water to the polyurethane thermal foaming resin to the color paste is 5 percent;
(6) coating middle layer slurry: coating the middle layer of the cloth with slurry;
(7) rolling dough slurry: coating with resin of leather coating, wherein the mixture ratio of the medium molecular soft polyurethane to the leather comprehensive resin is 38 percent, the mixture ratio of the color paste to the leather comprehensive resin is 45 percent, the mixture ratio of the color paste to the leather comprehensive resin is 10 percent, the mixture ratio of the softening agent to the wax liquid is 2 percent, and the mixture ratio of the leather matting filler to the leather comprehensive resin is 2; the resin which is beneficial to genuine leather coating is coated, so that the genuine leather feeling is stronger, and the coating is softer and stiffer in texture.
(7) And embossing: pressing the outer surface of the cloth into a flower shape;
(8) top layer effect slurry: coating the top layer of the cloth with the gloss oil coated with the genuine leather, wherein the ingredients are 40% of the gloss oil, 35% of the matte gloss oil, 1% of the hand feeling agent, 2% of the cross-linking agent and 22% of water; the gloss oil coated by the leather makes the cloth closer to the leather coating, so that the cloth has better hand feeling and stronger fastness;
(9) and finished cloth; forming finished cloth, and finishing and packaging.
Specifically, the invention utilizes high-quality textile cloth as base cloth, and combines the technology of genuine leather spraying to realize the direct-coating water-based excellent leather with genuine leather hand feeling and texture.
The working principle and the using process of the invention are as follows: the cloth has the texture of genuine leather by filling soft leather base cloth, the genuine leather cloth is environment-friendly and non-aging by coating the genuine leather with polyurethane, the polyurethane is extruded into the cloth by rolling, the leather is dried and remains in the cloth, so that the cloth has thick and soft genuine leather feel, macromolecular acrylic resin is favorable for rolling and coating the cloth on the surface of the cloth to form a surface film, wax solution, softening agent and water coated behind are prevented from further penetrating into the cloth, the surface of the cloth is scalded into a mirror surface by using a ironing machine at high temperature and low pressure to ensure that the surface of the cloth is smooth, polyurethane thermal foaming resin and color paste are rolled and coated on the cloth, the middle layer of the cloth is rolled and coated with the resin favorable for coating the genuine leather, the genuine leather feel is stronger, the coating has soft and stiff texture, the outer surface of the cloth is pressed into a flower shape, and the gloss oil coated by the genuine leather is utilized to ensure that the cloth is closer to the genuine leather coating, the hand feeling is better, the fastness is stronger, and finished cloth can be formed and can be finished and packaged.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The water-based directly-coated sofa leather is characterized in that: the production process comprises a water-based directly-coated sofa leather production process, wherein the water-based directly-coated sofa leather comprises leather base cloth, bottom blank filling, a cover, ironing, a foaming layer, coating middle layer slurry, rolling surface slurry, embossing, top layer effect slurry and finished cloth;
the production process of the water-based directly-coated sofa leather comprises the following steps:
(1) selecting materials: selecting leather base cloth as bottom cloth;
(2) filling: filling the bottom blank with 50% of small molecular polyurethane, 2% of JFC penetrant and 48% of water, wherein the small molecular polyurethane is softer than the medium molecular polyurethane;
(3) and a cover: firstly, rolling acrylic resin on the surface of the cloth, and then sequentially coating wax solution, softening agent and water, wherein the mixture ratio of the acrylic resin to the wax solution is 60%, the mixture ratio of the softening agent to the wax solution is 3%, and the mixture ratio of the softening agent to the water is 34%;
(4) ironing: ironing the surface of the cloth into a mirror surface by using an ironing machine, wherein the ironing machine has the temperature of 120 ℃ and the pressure of 3kg/cm2；
(5) And a foaming layer: rolling and coating the polyurethane thermal foaming resin and the color paste on cloth, wherein the mixture ratio of the polyurethane thermal foaming resin to the color paste is 85 percent, the mixture ratio of the color paste to the polyurethane thermal foaming resin to the color paste is 10 percent, and the mixture ratio of the water to the polyurethane thermal foaming resin to the color paste is 5 percent;
(6) coating middle layer slurry: coating the middle layer of the cloth with slurry;
(7) rolling dough slurry: coating with resin of leather coating, wherein the mixture ratio of the medium molecular soft polyurethane to the leather comprehensive resin is 38 percent, the mixture ratio of the color paste to the leather comprehensive resin is 45 percent, the mixture ratio of the color paste to the leather comprehensive resin is 10 percent, the mixture ratio of the softening agent to the wax liquid is 2 percent, and the mixture ratio of the leather matting filler to the leather comprehensive resin is 2;
(7) and embossing: pressing the outer surface of the cloth into a flower shape;
(8) top layer effect slurry: coating the top layer of the cloth with the gloss oil coated with the genuine leather, wherein the ingredients are 40% of the gloss oil, 35% of the matte gloss oil, 1% of the hand feeling agent, 2% of the cross-linking agent and 22% of water;
(9) and finished cloth; forming the water-based youthful skin.
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| CN201910781046.4A CN110592957A (en) | 2019-08-23 | 2019-08-23 | Waterborne directly-coated sofa leather |
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