Grinding process common failure analysis - film is not wear

(1) Failure phenomenon The glazing oil is not solidified and dried completely, or the tough film layer of the network structure is formed after uncured curing; the ink film of the packaging printing ink is not fully dried, which affects the complete curing and drying of the post-printing coating varnishes; The light source function is too low, especially the light energy is insufficient, the machine speed is too fast, at the same time it also directly affects the curing and drying effect of the coating oil; in the coating oil is added a suitable dilution solvent or non-reactive diluent.

(2)Solutions to ensure adequate drying, curing and curing time is the basis for improving the abrasion, scratching, and rubbing of the varnishes; selection of glazing oils with good toughness and suitable hardness; increasing the light energy to adjust the light intensity and slow down the printing process The speed of the cloth varnish; Add a small amount of wax or organic modified silicone leveling slip auxiliaries in the varnish system to improve its wear, scratch, wipe.

(Author/Liu Jiaju)