Micro-engraved and embossed color-coated steel plate with rice grain texture touch sense

Abstract

The utility model discloses a rice grain texture touch micro-carving embossed color-coated steel plate which comprises a base plate, a chemical treatment layer, a primer layer, a floating coat, a printing layer and a finishing layer are sequentially arranged on the upper surface from the top of the base plate from bottom to top, and rice grain patterns are engraved and embossed on the upper surface in a micro mode; a chemical treatment layer and a back coating layer are sequentially arranged on the lower surface from the bottom of the substrate from top to bottom. According to the color-coated steel plate, the rice grain texture touch layer with fine texture and rich layers is formed on the color-coated layer through the micro-carving imprinting technology, so that the color-coated steel plate has good touch feeling and attractiveness, meanwhile, the corrosion resistance and the wear resistance of a product are enhanced, and the individual requirements of users are met; the processing method is simple in process and convenient to operate, can be used for mass production, and has very high practical value and economic value; and the depth of the rice grains is accurately controlled, so that micro-carving impressing deformation only occurs in the coating, and the use performance of the base plate is not influenced.

Description

Technical Field

[0001] This utility model relates to a color-coated steel sheet, and more particularly to a rice grain texture micro-engraved color-coated steel sheet. Background Technology

[0002] Traditional color-coated steel sheets have a monotonous surface decoration effect, lacking depth and three-dimensionality, making it difficult to meet the demands of modern consumers for a high-quality lifestyle. To improve the aesthetic appeal and performance of color-coated steel sheets, it is necessary to develop a new type of micro-engraved embossed color-coated steel sheet. Through micro-engraving embossing technology, tiny textures resembling rice grains are formed on the surface of the color-coated steel sheet. This texture not only enhances the tactile experience of the material but also strengthens its practical properties such as anti-slip properties. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rice grain texture micro-engraved color-coated steel sheet with good tactile feel and aesthetics.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: it includes a substrate; the upper surface of the substrate consists of a chemical treatment layer, a primer layer, a middle coating layer, a printing layer and a topcoat layer from top to bottom, and the upper surface is micro-engraved with a rice grain pattern; the lower surface of the substrate consists of a chemical treatment layer and a back coating layer from bottom to bottom.

[0005] Furthermore, the sum of the thicknesses of the chemical treatment layer, primer layer, intermediate coating layer, printing layer, and topcoat layer on the upper surface is 25–35 μm, and the sum of the thicknesses of the chemical treatment layer and back coating layer on the lower surface is 10–25 μm.

[0006] Furthermore, the substrate is made of zinc-aluminum-magnesium plate or galvanized plate with a thickness of 0.3 to 0.6 mm.

[0007] Furthermore, the depth of the rice grain pattern is 20–30 μm.

[0008] The beneficial effects of adopting the above technical solution are as follows: (1) The rice grain texture PPM color-coated plate of this utility model forms a rice grain texture layer with fine texture and rich layers on the color coating through micro-carving and imprinting technology, so that the color-coated plate not only has good tactile feel and aesthetics, but also enhances the corrosion resistance and wear resistance of the product, and meets the personalized needs of users.

[0009] (2) By precisely controlling the depth of the rice grain pattern, this utility model ensures that the micro-engraving deformation only occurs in the coating and does not affect the performance of the substrate. Attached Figure Description

[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 These are surface images of the color-coated steel sheet described in this utility model before and after a 240-hour neutral salt spray resistance test.

[0013] In the figure: 1. Topcoat layer; 2. Printing layer; 3. Intermediate coating layer; 4. Primer layer; 5. Chemical treatment layer; 6. Substrate; 7. Back coating layer. Detailed Implementation

[0014] Figure 1 As shown, this rice grain texture micro-engraved color-coated steel sheet is a PPM sheet, including a substrate 6. The substrate 6 is made of zinc-aluminum-magnesium sheet or galvanized sheet, with a thickness of 0.3-0.6 mm. From bottom to top, the upper surface of the substrate 6 consists of a chemical treatment layer 5, a primer layer 4, a mid-coat layer 3, a printing layer 2, and a clear coat layer 1. The sum of the thicknesses of these layers is 25-35 μm. The upper surface is micro-engraved with a rice grain pattern, with a depth of 20-30 μm. From top to bottom, the lower surface consists of a chemical treatment layer 5 and a back coating layer 7. The sum of the thicknesses of these two layers is 10-25 μm.

[0015] Figure 1 As shown, the processing method for this rice grain texture micro-engraved embossed color-coated steel sheet is as follows:

[0016] (1) After passing through the tension roller, the color-coated steel strip passes through the upper side of the support roller group of the micro-engraving and embossing equipment for engraving operation, and the tension is controlled at 200KN;

[0017] (2) The micro-carving pattern roller of the micro-carving embossing equipment moves down as a whole until the lower part of the circumference presses against the upper surface of the color-coated steel strip, and the rolling pressure is controlled at 750KN.

[0018] (3) The color-coated steel strip moves with the traction, and at the same time the pressure roller drives the micro-engraved pattern roller to rotate, so that the engraved texture can be imprinted on the upper surface of the color-coated steel plate. The speed of the steel strip movement is controlled at 20m / min.

[0019] (4) The obtained rice grain texture micro-engraved color-coated steel sheet was subjected to a 240-hour neutral salt spray test according to GB / T 13448-2019 Test Methods for Color Coated Steel Sheets and Strips. The surface images of the samples before and after the test are shown in the figure. Figure 2 ,Depend on Figure 2 It is evident that no red rust was produced after 240 hours of neutral salt spray testing, meeting the corrosion resistance requirements.

Claims

1. A rice grain textured micro-engraved embossed color-coated steel sheet, characterized in that: It includes a substrate (6); the upper surface of the substrate (6) consists of a chemical treatment layer (5), a primer layer (4), a middle coating layer (3), a printing layer (2) and a cover layer (1) from bottom to top, and the upper surface is micro-engraved with a rice grain pattern; the lower surface of the substrate (6) consists of a chemical treatment layer (5) and a back coating layer (7) from top to bottom.

2. The rice grain texture micro-engraved color-coated steel sheet according to claim 1, characterized in that: The sum of the thicknesses of the upper surface chemical treatment layer (5), primer layer (4), intermediate coating layer (3), printing layer (2) and topcoat layer (1) is 25-35 μm, and the sum of the thicknesses of the lower surface chemical treatment layer (5) and back coating layer (7) is 10-25 μm.

3. The rice grain texture tactile micro-engraved color-coated steel sheet according to claim 1, characterized in that: The substrate (6) is made of zinc-aluminum-magnesium plate or galvanized plate with a thickness of 0.3 to 0.6 mm.

4. A rice grain textured micro-engraved color-coated steel sheet according to claim 1, 2 or 3, characterized in that: The depth of the rice grain pattern is 20–30 μm.

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