[Review]: Plexiglass screen printing: the best choice for low cost and high return
ã€Extended】 ： Introduction of DBL glass screen printing ink
[Extended]: Analysis of the photo-engraving process of plexiglass screen printing
ã€Extended】 ： Seven points of improvement of plexiglass screen printing process
Have you ever acted to print the ink taken out of the ink tank directly? Have you ever repeatedly wiped the ink accumulated on the silk screen? Have you had any experience of applying inappropriate pressure on the doctor blade?
If you answer yes to all three questions, then you have committed three taboos in the plexiglass screen printing process. If you can spend a little bit of thought on the preparation of ink, while using a re-tensionable screen to control the angle and speed of the doctor blade, you can easily avoid most of the problems encountered in the plexiglass screen printing process.
Each of the problems mentioned above will directly affect the quality, production efficiency and credibility of the printing enterprise of plexiglass screen printing crafts. This article will discuss these three issues in detail.
Almost all plastisol inks are concentrated when they leave the factory. Different manufacturers, colors and types have different degrees of concentration, and some are even super concentrated. Here we will focus on plastisol inks because most textile printing uses this ink.
Simply put, ink consists of three main components: PVC (polyvinyl chloride plastic), pigment (color), and plasticizer (or other additives).
1. PVC
PVC is an adhesive, which makes solid pigments adhere to the surface of textile materials after hot melting. It is a dispersion resin with extremely fine particles, a bit like white sugar. When it is mixed with plasticizer or other types of additives (except pigments), it becomes a liquid colorless and transparent substance, which can form a very thin film after coating.
Stir it, you will find that it is easier to stir than ink with pigments, and it is easier to detach from the doctor blade. The viscosity is very different. It is more suitable for printing and easier to print than inks with pigments.
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