Leather Grain Process: From Production to Application

Leather grain craft is a craft to create leather texture effect on the surface of an object, as follows:

1. Production process

• Base map production**: Take plastic samples or artificial leather decorative patterns as samples, and use spray paint, white powder and other methods to make black and white base maps.

• Phototypesetting**: Use film 1:1 to shoot the base map to get a photographic negative.

• Screen plate making**: Use polyester silk, photosensitive film, aluminum frame and negative to make a screen plate.

• Ink preparation**: Mix asphalt, kerosene, 2711-4 ink and drying oil to get anti-corrosion transfer ink.

• Decal paper printing decorative pattern**: Use a screen printer to print anti-corrosion transfer ink on decal paper, and then print it on the mold.

• Ink drying**: Bake in a 40-45℃ oven until the ink is half dry.

• Mold pretreatment**: Grind, clean, and degrease to make the mold surface good.

• Decal transfer**: peel off a layer of decal paper, paste, scrape and compact the transfer with the ink facing the mold.

• Drying**: Dry the transfer ink naturally or with an infrared lamp.

• Finishing**: Use a tracing pen and a plate repair knife to repair and trim the decorative pattern.

• Corrosion**: Put the mold in the corrosive liquid and control the corrosion time as required.

• Inspection**: Check the corrosion depth after flushing the mold.

• Cleaning and rust prevention**: Flush the mold, wipe it dry and remove the paint, blow it dry with a hair dryer, and apply anti-rust oil.

2.Application field

• Widely used in automobiles, homes, electronics, fashion and other fields, such as interiors, furniture surfaces, electronic product shells, clothing, shoes and bags.

3. Process characteristics

• Self-prepared ink has good corrosion resistance, strong adhesion, easy drying and transfer.

• Self-made nozzles with molds facing down can obtain high-quality decorative patterns.

• The process and operation are simple and not limited by the mold geometry.

• The equipment is simple, the material consumption is small, the cost is low, and the efficiency is high.