Detailed explanation of thirteen commonly used aluminum oxide signage production processes

1. Aluminum plaque oxidation method

① Bright text (mirror finish), black background aluminum signage

Production process: cutting and forming → mechanical polishing → electrolytic polishing or chemical polishing → anodizing → screen printing → dyeing → removing paint film → sealing treatment → polishing → finished product inspection and packaging;

② Multicolor printed aluminum signage

Production process: cutting and degreasing → mechanical polishing → chemical or electrolytic polishing → anodizing → screen printing with penetrating ink → sealing holes → mechanical polishing → finished product inspection and packaging;

③ Offset printing dispersed dye ink aluminum label

Production process: cutting → alkaline washing → surface treatment → anodizing → offset printing dispersed dye ink → drying → (multi color repeated) → sealing and removing paint film → re sealing → mechanical polishing → forming → finished product inspection and packaging;

2. Dyeing and fading method

Production process: cutting → mechanical polishing → chemical or electrolytic polishing → anodizing → screen printing → dyeing → re screen printing → fading → re dyeing another color → sealing → removing paint film → sealing → mechanical polishing → forming → finished product inspection and packaging;

3. Adhesive film protection method

Production process: cutting → mechanical polishing → chemical or electrolytic polishing → anodizing → dyeing red → screen printing of polyvinyl alcohol and alkyd varnish, which becomes transparent after heating → fading → then screen printing to cover the natural color of aluminum → drying and dyeing black → fixing → sealing holes → (without removing the paint film) → forming → finished product inspection and packaging;

4. Oxidized gold background, screen printing or offset printing method

Production process: cutting → brushing sand → anodizing → dyeing gold → spraying varnish → screen printing or offset printing → spraying protective paint → forming → finished product inspection and packaging;

5. Secondary aluminum oxidation method

① Flat concave oxidation method

Production process: cutting → mechanical polishing → chemical degreasing → AC oxidation → black dyeing → pre drying → spin coating of polyvinyl alcohol photosensitive adhesive → plate drying → development → film fixation → removal of unnecessary oxide film → low-temperature direct current anodizing for second oxidation → forming → finished product inspection and packaging; The polyvinyl alcohol adhesive film is not removed, and there should be no sand holes on the board surface, which cannot be repaired. The process conditions require high requirements.

② Hydrofluoric acid etching method

Production process: cutting → mechanical polishing → chemical or electrolytic polishing → anodizing → black dyeing → hole sealing → screen printing of anti-corrosion layer → hydrofluoric acid removal of oxide film → low-temperature oxidation → removal of protective film → forming → finished product inspection and packaging;

③ Flat convex oxidation method

Production process: cutting → mechanical polishing → chemical or electrochemical polishing → low-temperature anodizing → gold dyeing → hole sealing → screen printing of corrosion-resistant ink → removal of oxide film → second oxidation dyeing of black → hole sealing → removal of paint film and mechanical polishing → forming → finished product inspection and packaging;

6. Porcelain oxidation method

Production process: cutting → mechanical polishing → chemical or electrochemical polishing → low-temperature anodizing → gold dyeing → hole sealing → screen printing → removal of oxide film → ceramic oxidation pool for second oxidation (natural color is porcelain white, can also be dyed into other colors) → hole sealing → removal of protective film → mechanical polishing → forming → finished product inspection and packaging;

7. Glue throwing and sample dropping method

Production process: cutting → mechanical polishing → chemical or electrochemical polishing → anodizing → hole sealing → spraying nitrocellulose paint → throwing glue and dropping samples → dissolving unprotected paint layer with wool and banana water → hot water removing adhesive film → removing unprotected oxide film → electrolytic polishing → second oxidation → blackening → hole sealing → removing paint film → polishing → forming → finished product inspection and packaging;

8. Korean law

Production process: cutting → mechanical polishing → chemical or electrochemical polishing → anodizing → multiple screen printing of various colored penetrating inks → film removal → hole sealing → re screen printing of anti corrosion ink protective layer for text and graphics → removal of oxide film → second oxidation (natural color) → polishing → forming → finished product inspection and packaging;

9. Combination process method

① Etching, sandblasting, aluminum oxide signage

Production process: cutting → gluing → sun drying → developing → baking → etching → drilling and forming → removing adhesive film → carbon grinding → convex character protection → sandblasting → chemical polishing → anodizing → concave character filling and painting;

② Etching and oxidation paint filling method

Production process: cutting → charcoal grinding → gluing → plate drying → development → plate baking → plate repair and back protection → etching → film removal → forming → hollow edges and frames raised by charcoal grinding → chemical polishing → anodizing → gold dyeing → hole sealing → filling with paint and coloring;

10. Aluminum signage oxidation coloring, screen printing, and embossing method

Production process: cutting → mechanical polishing → chemical polishing → alternating current oxidation → golden coloring → screen printing of text and graphics → embossing → forming → finished product inspection and packaging;

11. Directly screen printing text patterns after sand surface treatment and aluminum anodizing

Production process: cutting → degreasing → chemical sand treatment → anodizing → hole sealing → screen printing of text and graphics → applying protective film → forming → finished product inspection and packaging;

12. Electrophoretic paint method

Production process: cutting → mechanical polishing → chemical polishing → anodizing → hole sealing → screen printing → removal of oxide film → electrophoretic paint → drying → forming → finished product inspection and packaging;

13. Old powder sandblasting method

Production process: cutting → degreasing → screen printing anti sandblasting ink → old powder sandblasting (dry spray and wet spray) → removing paint film → electrolytic polishing → anodizing → (dyed gold or not dyed) → sealing → forming → finished product inspection and packaging;

The above describes thirteen production methods for aluminum oxide labels, which generally use screen printing technology. The commonly used production processes for aluminum oxide labels include oil removal, sand surface treatment, brushing treatment, chemical polishing, electrolytic polishing, anodizing, hole sealing, and other processes.