Single-sided embossed film-coated plate

Abstract

The utility model relates to the technical field of production and use of color-coated plates and building wallboards of shells of household electrical appliances, in particular to a single-sided embossed film-coated plate which comprises a metal base material, a primer layer, a PET (polyethylene terephthalate) layer and pattern grooves, the primer layer is used for decorating and roller-coating one side of the metal base material, the PET layer is pressed on the primer layer in a rolling manner, and the pattern grooves are formed in the surface of the metal base material. The pattern grooves are rolled by a steel embossing roller to act on the PET layer, the primer layer and the metal base material layer by layer and are formed in the surface of the metal base material. The problem that a paint layer is easy to crack and damage when an existing embossed steel plate is embossed is effectively solved; the PET layer is attached to the decorative primer layer for protection, meanwhile, the pattern grooves sequentially act on the metal base material attached with the PET layer, damage to primer in the pattern groove machining process of the steel embossing roller is prevented, meanwhile, damage to the metal base material caused by the fact that the pattern grooves are directly machined in the metal base material is avoided, and the service life of the metal base material is prolonged. The corrosion resistance of the embossed steel plate is not facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the production and use technical field of the color coated sheet and building wallboard of household electrical appliances shell, in particular to a single side embossed laminated sheet. BACKGROUND

[0002] In order to increase the texture and visual sense of the shell panel in household electrical appliances, embossed steel sheet is gradually used on the shell panel of household electrical appliances, wherein the embossed steel sheet is a coating product with pattern or texture, hand feeling and obvious visual hierarchy.

[0003] However, in the production process of the existing embossed steel sheet, the corresponding solvent type paint is applied on the steel sheet, and the plastic sol is activated under the action of the curing oven, and the steel sheet is embossed and printed before cooling. However, in the printing process, the embossing roller has a large rolling pressure, so the paint is easily damaged when the texture is pressed out, causing cracking and damage of the paint layer. SUMMARY

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a single side embossed laminated sheet, which effectively solves the problem of cracking and damage of the paint layer when the existing embossed steel sheet is embossed.

[0005] The technical solution solved by the utility model is a single side embossed laminated sheet, which comprises a metal base material, a primer layer, a PET layer and a pattern groove. The primer layer is used for decoration and is roll coated on one side of the metal base material. The PET layer is pressed on the primer layer by a pressing roller. The pattern groove is formed on the surface of the metal base material by the action of a steel embossing roller on the PET layer, the primer layer and the metal base material. The PET layer is pressed on the surface of the sheet. The pattern groove is formed by the action of a steel embossing roller with pre-etched concave and convex patterns on the PET layer sheet.

[0006] In the technical solution, the primer layer is used to decorate the metal base material, and the primer layer for decoration is protected by the PET film to avoid damage to the primer layer during the pressing process of the pattern groove of the steel embossing roller. The corrosion resistance and rust prevention performance of the metal base material can be greatly improved.

[0007] Preferably, a back paint layer is provided on the other side of the metal base material. A first coating layer is coated between the primer layer and the metal base material. A second coating layer is coated between the back paint layer and the metal base material.

[0008] Preferably, the thickness of the metal base material is 0.3-2.5mm.

[0009] Preferably, the depth of the pattern groove is 0.01-0.1mm.

[0010] Preferably, the primer layer has a thickness of 5-15 microns and the back coating layer has a thickness of 1-10 microns.

[0011] Preferably, the PET layer has a thickness of 25-35 microns.

[0012] Preferably, a PE film is further included, which is attached to the PET layer and is transparent.

[0013] The present application has the following advantages:

[0014] The present application has the following advantages: BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the cross-sectional structure of the present application;

[0016] In the figure, 1-metal base material; 2-primer layer; 3-PET layer; 4-pattern groove; 5-back coating layer; 6-first coating layer; 7-second coating layer; 8-PE film. DETAILED DESCRIPTION

[0017] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0018] By Figure 1 A single-sided embossed film-coated plate is given, which comprises a metal base material 1, a primer layer 2, a back coating layer 5, a PET layer 3 and a pattern groove 4. The metal base material 1 is generally a metal sheet of 0.3-2.5 mm. The primer layer 2 is used for decoration and is coated on one side of the metal base material 1 by a color-coated plate coating machine at a thickness of 5-15 microns. At the same time, a protective back coating layer 5 is coated on the back at a thickness of 1-10 microns. The plate is baked through an oven under the condition that the plate surface temperature is between 210-260 degrees Celsius and the time is between 30 seconds-60 seconds.

[0019] Immediately after baking, a press roller under the condition of 3-10 kg pressure is used to press a PET film of 12-35 microns on the plate surface. Then, the plate is rapidly cooled to room temperature through water cooling, and a VCM plate roll with decorative appearance is obtained.

[0020] The plate is passed through an embossing machine group. A steel press roller with pre-etched concave-convex patterns is used to press the patterns into the surface at a depth of 0.01-0.1 mm through a pressure of 50-200 tons. Then, the plate surface is corrected and flattened through a tension straightening machine group.

[0021] The primer layer 2 is generally made of polyester paint, polyurethane paint or composite paint.

[0022] The first conversion coating 6 is coated between the primer layer 2 and the metal base 1, and the second conversion coating 7 is coated between the back paint layer 5 and the metal base 1.

[0023] The first conversion coating 6 and the second conversion coating 7 protect the surface of the metal base 1 and make the primer layer 2 and the back paint layer better adhere to the surface of the metal base 1.

[0024] The PE film 8 is also included and is adhered to the PET layer 3. The PE film 8 is transparent and is used to protect the appearance surface from damage during transportation and stamping.

[0025] The utility model adopts the method of adhering the PET layer to the decorative primer layer for protection, and the patterned groove is sequentially applied to the metal base with the adhered PET layer. This prevents the primer from being damaged during the process of patterned groove machining by the steel embossing roller, and also avoids the direct machining of the patterned groove of the steel embossing roller to the metal base, which causes damage to the metal base and is not conducive to the corrosion resistance of the embossed steel plate.

Claims

1. A single-faced embossed film-laminated sheet, characterized by, It comprises a metal base (1), a primer layer (2), a PET layer (3) and a patterned groove (4), the primer layer (2) is used for decoration and roll-coated on one side of the metal base (1), the PET layer (3) is roll-pressed on the primer layer (2), the patterned groove (4) is formed on the surface of the metal base (1) by the action of the steel embossing roll on the PET layer (3), the primer layer (2) and the metal base (1) layer by layer.

2. The single-faced embossed laminated board according to claim 1, wherein: It also comprises a back-coating layer (5) arranged on the other side of the metal base (1), a first coating layer (6) is coated between the primer layer (2) and the metal base (1), and a second coating layer (7) is coated between the back-coating layer (5) and the metal base (1).

3. The single-faced embossed laminated board according to claim 1, wherein: The thickness of the metal base (1) is 0.3-2.5mm.

4. The single-sided embossed laminated board according to claim 1, wherein: The depth of the patterned groove (4) is 0.01-0.1mm.

5. The single-sided embossed laminated board according to claim 2, wherein: The thickness of the primer layer (2) is 5-15μm, and the thickness of the back-coating layer (5) is 1-10μm.

6. The single-sided embossed laminated board according to claim 1, wherein: The thickness of the PET layer (3) is 25-35μm.

7. The single-sided embossed laminated board according to claim 1, wherein: It also comprises a PE film (8), the PE film (8) is attached to the PET layer (3), and the PE film (8) is transparent.

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