The latest printing method screen printing gold introduction
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Adhesive formulations are the key to transfer. The formula should be formulated separately according to the nature of the substrate and the nature of the electrochemical aluminum layer and the adaptability of the screen plate. The viscosity and concentration of the formula should be properly formulated. For example, in the case of transfer cloths and polyvinyl chloride, polystyrene plastic products and wood products, the adhesive formulations are: perchloroethylene resin, xylene, cyclohexanone.
Perchloroethylene resins can also be used in place of or in combination with polyvinyl chloride resins. Polyvinyl chloride resins are used in low molecular weight. When transfering celluloid plastic products, the xylene in the above adhesive formulation can be changed to acetone. When transferring plexiglass products, some chloroform may be added. When transferring metal, ceramics and glass products, the adhesive formula is: epoxy resin 100%. (o) 3% to 5% of dibutyl benzoate and 12% to 15% of ethylenediamine (the concentration is too high to add a diluent).
Gorgeous and beautiful, brightly colored anodized aluminum is stamped on the stamping machine and displayed on the substrate. Its beautiful color has won wide appreciation. However, sometimes the bronzing machine will encounter products that are not suitable for mechanical bronzing, and the customer stubbornly does not use screen printing gold. In the dilemma, the unique screen printing transfer of aluminum is showing its superiority. The hot stamping machine is mainly based on temperature and pressure, while the screen transfer of electrochemical aluminum relies on the role of adhesive. The reason why the adhesive can transfer the anodized aluminum is because the outermost layer of the electrochemical aluminum is composed of a rubber layer.
In the electro-aluminum transfer operation, the printed image is first made into a screen version, and the graphic on the plate is required to be clear. Then use a screen plate to print a layer of adhesive on the substrate, then attach the anodized aluminum to it, then use cotton or sponge to gently press on the image, dry, and tear off the anodized aluminum. Dry, tearing is fast), and the parts with adhesives show clear and bright anodized aluminum graphics.