In the silk printing process, the colored text pattern is printed on the surface of the anodized aluminum sheet coil, and then the non-conductive colored anodized layer is formed by sealing the hole. Then a protective printing material with corrosion resistance is printed on the oxide layer by silk printing method to protect the local text pattern. The oxide layer of the unprotected part is removed by chemical etching method, and the conductive aluminum layer is formed on the aluminum plate. A convex and concave aluminum layer with both conductive and non-conductive sealing oxide layer is prepared. A form of aluminum plate. Then the aluminum plate was electrophoretically coated. Under the action of electric field, the negative charged colloidal particles in the electrophoretic coating were adsorbed by the electric aluminum layer and deposited on the concave surface to achieve the purpose of local coating. With this new technology, a multi-color convex-concave aluminum sign with clear edges and bright colors can be produced.




 
Henan Signi Aluminum Co., Ltd. specializes in producing Anodized aluminum sheet coil for silk-screen printing. The surface has two effects: Matt and bright. The color will never fall off after the customers get it printed and sealed.
 
Specification for aluminum sheet coil for silk-screen printing in Henan Signi Aluminum industry:
 
Alloys: 1100, 1060, 1070, 5052
Thickness: 0.3--1.2mm
Maximum width: 1220mm
Thickness tolerance: +/-0.2mm
Treatment process: anodizing, surface sandblasting.
Patch: single side laminating, double side laminating.
Surface: matte, bright.