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what is relief—stereo type altiminium foil

relief—stereo type altiminium foil is aluminum foil for extruding embossing pattern. The aluminum foil used for embossing is plain foil of less than 0.05mm thickness (see foil production) or coated paper foil below 0.012mm (see composite aluminum foil), and also painted or printed aluminum foil (see coated aluminum foil). The foil must be pre annealed and softened before embossing. Allow the foil to have little waves, rollers, wrinkles, and other defects.

The pattern on the aluminum foil is pressed by a pair of rotating rollers. A roller is a steel roller engraved pattern, the other is of great toughness and elasticity of the large diameter roller or rubber roller. In order to make the pattern on the aluminum foil clear, the paper roll should be flexible and moderate. Before the embossing, the paper roll should be properly moistened. The pressure should be compressed from light pressure to heavy pressure and run 10 ~ 20min.


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