In catalogue
printing process, printing and fading should be noticed. If the ink in the
ink pan contains moisture, dust and incompatible solvents to enter the ink,
these substances will not only gel, but the gelatinization ink will not only
reduce the binder content, but also reduce the adhesion of the ink. Pigment
causes uneven distribution of pigment in ink, and can not be used on the upper
roller. If the whole ink is light, the quality of the ink is problematic. The
quality of the ink is problematic in the following aspects: the fineness of the
first ink is insufficient, and the gravure roller is not enough; the storage
time of the second ink is too long; and the third thinner is mixed with water,
oil and other incompatible solvents.