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The use of BOPP pre-coating film

by:Taian Lamination Film     2021-02-04

          BOPP pre-coating film is the polypropylene film with EVA hot melt adhesive laminated structure of composite film formation, its unique performance, not only improve the shortcomings of ordinary polypropylene film, also effectively play the superior performance of polypropylene film.

          Print a kaleidoscope of inking amount, different versions of completely different, the same version also has certain change, and bopp pre-coating film colloid quantitative is fixed, as a result of ink in printing when most of the mixture is the solvent, the solvent most of colloid and base membrane has a role in melt up, so the print in the effect of the solvent residue control is important to the whole effect of the quality control is a link.

          And many use solvent glue coated ( The coating) Manufacturers often appear after draping products binding foaming phenomenon, some even though no blisters but can not bend stamping, the reason and the use of coated technology and colloid is directly related to print before they can have a certain effect of solvent residue, and the type of coated coating the glue is not completely volatile solvent after baked road, residual amount is larger, so the draping within products after double solvent is more, from the adhesive solid content analysis, the type of coated coating the solid content of only 5-7 grams per square meter, and difficult to control, and bopp pre-coating film colloid content in more than 10 grams per square meter, which is why type precoating coated not causes of blister products.

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