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dry film application on sales Introduce the preparation method of dry film aqueous solution
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dry film application on sales Introduce the preparation method of dry film aqueous solution

2022-05-02 08:29

Do you know what the preparation method of dry film aqueous solution is? Today, the dry film application on sales editor will take you to a brief look at it.
There are many formulations of aqueous dry film photosensitive adhesives, which are mainly composed of film-forming substances, photosensitive monomers, dyes (or pigments), photoinitiators, and solvents. The film-forming substance is phthalic anhydride resin, which is actually a binder, which binds the components into a film and provides the toughness of the film.


The photosensitive monomer is pentaerythritol triacrylate, which can be polymerized and cross-linked under the action of a photoinitiator. The photoinitiators are benzoin ether, benzophenone and benzotriazole, which can absorb ultraviolet light to promote the polymerization and crosslinking of photosensitive monomers. Malachite green, methyl violet, etc. are used for dyestuffs, mainly for coloring. They are required to be easily soluble in solvents and do not work with other components. The solvent is acetone.
During production, photoinitiators, thermal polymerization inhibitors, dyes and various auxiliaries can be added to the acetone solution of the photosensitive resin to form a glue solution, which is coated on the polyester film at a certain temperature, and heated and dried to obtain a resist film. , and then coat a layer of polyethylene film on it, and roll it into a tube, which is the product.
The above is the description of dry film application on sales: a brief introduction to the relevant knowledge of the preparation method of dry film aqueous solution.

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