Processing method of leather coloring and laminating material

Abstract

The invention provides a processing method of a leather coloring and laminating material, which comprises the following steps: 1) weighing the following components: 20%-30% of toner, 15%-20% of resin, 50%-55% of solvent and 5%-8% of assistant; 2) adding 30%-50% of the solvent, all the resin and 45%-55% of the toner after weighing into a stirrer, and pre-stirring until no particles suspend; the preparation method comprises the following steps of 1, adding a solvent into a stirrer, 2, adding a solvent into the stirrer, 3, adding the rest of the toner and the auxiliary agent into the stirrer, scraping the material on the inner wall of the stirrer container, and closing the stirrer for primary stirring, 4, grinding the stirred material in a grinder, 5, adding the rest of the solvent for secondary stirring after grinding, 6, screening the secondarily stirred material through a filter screen, and 7, carrying out light-shielding sealing packaging.

Description

Technical Field

[0001] This invention relates to a processing method for leather surface treatment materials, specifically a processing method for leather coloring and coating materials. Background Technology

[0002] Leather materials have a wide range of applications, and due to different application scenarios, there is a need for color modification. Surface coating is an efficient and stable processing method. This coating material can be coated onto the surface of the leather material and form a stable film layer on the surface, protecting the leather surface while directly expressing the desired color. It has high processing efficiency. Therefore, this invention provides a processing method for coating materials. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned deficiencies in the prior art and to provide a method for processing leather coloring and coating materials.

[0004] The technical solution adopted by the present invention to solve the above problems is: the processing method of leather coloring and coating material includes the following steps: 1) Weigh the components, which include 20%~30% color powder, 15%~20% resin, 50%~55% solvent and 5%~8% additives; 2) Add 30% to 50% of the weighed solvent, all the resin, and 45% to 55% of the weighed color powder to the mixer and pre-stir until no particles are suspended. 3) Add the remaining color powder and additives to the mixer, scrape the material off the inside of the mixer container, close the mixer and mix once; 4) Grind the mixed material in a grinder; 5) After grinding, add the remaining solvent and stir again; 6) Sift the material after the second mixing through a filter screen; 7) Pack in a light-proof, sealed container.

[0005] Pigment is the main coloring material. Resin material has a good coating effect and can effectively enhance gloss. Pigment is added in two stages, which can effectively improve the fusion effect and avoid particle agglomeration. The mixing effect is improved by adding additives. After stirring once, the difficult-to-disperse particles are crushed by grinding. After adding solvent again and stirring, the pigment can be fully dissolved. After filtration, a coating material without particulate impurities is obtained.

[0006] Furthermore, the solvent is dimethylformamide, and the additives include dispersants, defoamers, and cosolvents. The solvent is a material with good dissolving properties, the dispersant helps the color powder to disperse quickly and evenly, and the defoamer reduces bubbles generated during stirring.

[0007] Furthermore, the resin is a UV-curable resin. UV-curable resins have good processability and can form films quickly.

[0008] Furthermore, the first stirring time is 60-100 min, and the stirring speed is 1500 r / min-2000 r / min; the second stirring time is 5-10 min, and the stirring speed is 1000 r / min-1500 r / min.

[0009] Furthermore, the grinding machine uses a grinding wheel to grind the surface, and the grinding is performed at least twice. The grinding with a grinding wheel provides good separation and crushing properties for some mineral-based color powders.

[0010] Furthermore, the filter screen uses a pore size of 100-200 mesh. The filter screen can quickly separate particles, improving quality.

[0011] Furthermore, the agitator includes a filter screen with a cylindrical structure. The filter screen is formed by annular winding of its surface. The agitator blades are located inside the filter screen. The upper and lower ends of the filter screen are supported on the inner wall of the agitator. The material is first fed into the inner space of the filter screen. This cylindrical filter screen structure allows for filtration during the agitation process, improving production efficiency.

[0012] Furthermore, the two ends of the filter screen are formed into annular hoops, and the screen surface is made of metal mesh, which is fixed to the annular hoops. The filter screen itself has good structural rigidity, which can meet the requirements of rapid flow within the agitator.

[0013] Furthermore, the filter screen is used in the secondary mixing process. The filter screen has a detachable structure within the mixer, and is placed inside the mixer before the secondary mixing process begins. This is primarily applicable in the secondary mixing process, reducing exposure time and preventing impact on the quality of the coating material.

[0014] Compared with the prior art, the present invention has the following advantages and effects: This design is a processing method for a coating material for leather surface treatment, which can effectively improve the purity and quality of the coating material, facilitate rapid film formation, and has high processing and production efficiency, and can avoid prolonged exposure that affects product quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the stirrer and filter screen.

[0016] In the diagram: 1. Stirrer, 2. Filter screen, 3. Stirring blades, 4. Inner wall, 5. Annular hoop. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0018] A method for processing leather coloring and coating materials, comprising the following steps: 1) Weigh the components, which include 20%~30% color powder, 15%~20% resin, 50%~55% solvent and 5%~8% additives; 2) Add 30% to 50% of the weighed solvent, all the resin, and 45% to 55% of the weighed color powder to stirrer 1, and stir until no particles are suspended. 3) Add the remaining color powder and additives to the mixer 1, scrape the material off the inner wall 4 of the mixer 1 container, close the mixer 1 and stir once. 4) Grind the mixed material in a grinder; 5) After grinding, add the remaining solvent and stir again; 6) Sift the material after the second mixing through filter screen 2; 7) Pack in a light-proof, sealed container.

[0019] The solvent is dimethylformamide, and the additives include dispersants, defoamers, and cosolvents.

[0020] The resin is a UV-curable resin.

[0021] The first stirring time is 60-100 min, and the stirring speed is 1500 r / min-2000 r / min. The second stirring time is 5-10 min, and the stirring speed is 1000 r / min-1500 r / min.

[0022] The grinding machine uses a grinding wheel to grind the surface, and the grinding is performed no less than twice.

[0023] The filter screen 2 has a filter pore size of 100~200 mesh.

[0024] The stirrer 1 has a filter screen 2, which is a cylindrical structure. The mesh surface of the filter screen 2 is rolled into a ring shape. The stirring blade 3 of the stirrer 1 is located inside the filter screen 2. The upper and lower ends of the filter screen 2 are both supported on the inner wall 4 of the stirrer 1. The material is first put into the inner space of the filter screen 2.

[0025] The two ends of the filter screen 2 are formed into annular hoops 5, and the mesh surface of the filter screen 2 is a metal mesh, which is fixed on the annular hoops 5.

[0026] The filter screen 2 is used in the secondary stirring process. The filter screen 2 is a separable structure inside the stirrer 1. Before the secondary stirring process begins, the filter screen 2 is placed inside the stirrer 1.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative rather than restrictive in all respects, and the scope of the invention is defined by the claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes the embodiments, not every embodiment contains only one independent technical solution. This description method is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A method for processing leather coloring and coating materials, characterized in that: The processing method for leather coloring and coating materials includes the following steps: 1) Weigh the components, which include 20%~30% color powder, 15%~20% resin, 50%~55% solvent and 5%~8% additives; 2) Add 30% to 50% of the weighed solvent, all the resin, and 45% to 55% of the weighed color powder to the stirrer (1) and pre-stir until no particles are suspended. 3) Add the remaining color powder and additives to the mixer (1), scrape the material off the inner wall (4) of the mixer (1) container, close the mixer (1) and stir once; 4) Grind the mixed material in a grinder; 5) After grinding, add the remaining solvent and stir again; 6) Sift the material after secondary mixing through a filter screen (2); 7) Pack in a light-proof, sealed container.

2. The leather coloring and coating material processing method according to claim 1, characterized in that: The solvent is dimethylformamide, and the additives include dispersants, defoamers, and cosolvents.

3. The leather coloring and coating material processing method according to claim 1, characterized in that: The resin is a UV-curable resin.

4. The leather coloring and coating material processing method according to claim 1, characterized in that: The first stirring time is 60-100 min, and the stirring speed is 1500 r / min-2000 r / min. The second stirring time is 5-10 min, and the stirring speed is 1000 r / min-1500 r / min.

5. The leather coloring and coating material processing method according to claim 1, characterized in that: The grinding machine uses a grinding wheel to grind the surface, and the grinding is performed no less than twice.

6. The leather coloring and coating material processing method according to claim 1, characterized in that: The filter screen (2) has a filter pore size of 100~200 mesh.

7. The leather coloring and coating material processing method according to claim 1, characterized in that: The stirrer (1) has a filter screen (2) inside. The filter screen (2) has a cylindrical structure and the mesh surface of the filter screen (2) is rolled into an annular shape. The stirring blade (3) of the stirrer (1) is located inside the filter screen (2). The upper and lower ends of the filter screen (2) are both supported on the inner wall (4) of the stirrer (1). The material is first put into the inner space of the filter screen (2).

8. The leather coloring and coating material processing method according to claim 7, characterized in that: The two ends of the filter screen (2) are formed into annular hoops (5), and the mesh surface of the filter screen (2) is a metal mesh, which is fixed on the annular hoops (5).

9. The leather coloring and coating material processing method according to claim 6 or 7, characterized in that: The filter screen (2) is used in the secondary stirring process. The filter screen (2) is a separable structure inside the stirrer (1). Before the secondary stirring process begins, the filter screen (2) is placed inside the stirrer (1).

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