Cleverly solve the common lamination failures in the post-press process and return you a flat and perfect print

Lamination is a process in the post-press processing process. Various quality problems often occur in the lamination, which directly affects the quality of the printed product, causing unnecessary losses and waste, and must be taken seriously. deal with.
1. The plaque blisters on the surface of the coated product
Phenomenon and reason:
(1) The humidity of the paper is high, and the printed product is coated without drying. When the product is gradually dried after coating, the water vapor in the paper evaporates, and spots or bubbles form between the surface of the printed product and the plastic film.
(2) Paper prints are dusted, dusty or stained on the surface of the plastic film after printing.
(3) Too much anti-sticking agent and quick-drying agent are added to the ink during paper printing.
(4) The coated adhesive glue is too thick or too thin, and the glue layer is too thin or too thick.
(5) The adhesive glue applied by the coating machine is uneven or the adhesive is aging.
Approach:
(1) Dry the printed paper and adjust the temperature and humidity in the workshop.
(2) Clean the dust and impurities on the surface of paper and plastic film.
(3) Control the addition and release of anti-sticking agent and quick-drying agent in the ink during paper printing.
(4) Strictly mix the adhesive and thinner, adjust the thickness of the glue layer and the concentration of glue.
(5) Adjust the gap between the two rollers of the coater to make it uniform and replace the aging adhesive glue.
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