The technical quality of anodized aluminum foil has the following requirements:
The bottom layer of the
① is evenly painted, without obvious chromatic aberration, color stripe and stain.
② bottom glue coating is uniform, smooth, white without impurities, no obvious stripes, sand spots and oxidation present
③ Gloss, in the printing plate layout temperature for 70~90 hot stamping, packaging color unchanged.
④ fastness, by 100g weight friction, the requirements of wear-resistant times for 2000~3000 times.
⑤ sharpness, to fourth word hot stamping, stroke clear not adhesion for reasonable.