Organic glass screen printing ink allocate points analysis

You had will ink can remove the ink directly printing behavior? You had repeatedly wipe piling up in screen printing ink on the move? Have you ever in scraping blade with the inappropriate pressure experience?

If you give this the answers to the three questions is yes, then you can make the organic glass screen printing process of the three big taboo. If you can spend a bit idea deployment of ink, and at the same time using repeatable tight screen, control scraping blade Angle and speed, can easily avoid organic glass screen printing process met the most problems.

What is mentioned above every problem will directly influence the organic glass screen printing craft quality, production efficiency and printing enterprise reputation. This paper analyzes the three problems are detailed discussed.

Almost all of the organosol type printing ink factory is concentrate, manufacturer, the color, and the different types, the degree of enrichment is different also, some even ultra concentrated. Here we will focus on the discussion organosol ink, because most of the textile printing all use the ink.

Simply speaking, ink by three main elements: PVC (polyvinyl chloride (PVC) plastic), pigment (color) and plasticizer (or other additives).

1. PVC

PVC is a kind of adhesive, hot melt after solid pigment adhere to the textile material surface. It is a kind of particle is very fine dispersion resin, and a bit like the white granulated sugar. When it and plasticizer or other types of additive blend (except paint outside), become liquid colorless transparent material, after coating can form very thin very thin film.

To mix, you will find it than with pigment ink easier mixing, and more easily from scraping knife, viscosity is very different, it than with pigment ink is more suitable for printing, are also more likely to printing.

2. Pigment

Pigment produce color, it is grinding into tiny particles, and PVC and other additives mixed. It and transparent PVC and other additives mixed ratio determines the color transparent and opaque nature.

Organic glass screen printing ink pigment concentration than four color printing ink pigment concentration is higher, even for the same types of ink, by different manufacturers, pigment percent also each are not identical, viscosity is also so, so their printability and color concentration also correspondingly have certain difference.

In the printing ink, you have to test different manufacturers ink, their types and hue, this is because some ink incorporation 50% additive color will become weak, and some but not happen any changes.

3. Plasticizer

Manufacturers used to allocate ink with additives and plasticizer is a printing ink quality difference is the main factors, including plasticizer is the most important ingredients, which, in many cases, also known as reducing agent.

In the ink to add a small amount of the reducing agent, can make the ink viscosity reduced, so as to improve the ink printability. Usually in four-color printing is without reductant, and in organic glass screen printing process, ink point is the formation of the Internet by screen hole size to decide, if the mesh from organic glass surface, can make the ink point deformation, printing out of the image blur.

The reducing agent in containers to water clear transparent, if you scoop up a spoon, will feel it a bit like oil, used to strictly abide by the manufacturers instructions. If join reductant too much, so no matter how much you join desiccant, printing speed how slow, after drying apparatus how long, printing ink were difficult to and textiles combination. So in add reducing agent must be careful.

Moderate use of reductant can give printing process benefit, but in the actual production process, people often do not follow the instructions on the use of the manufacturers, abuse the number of reductant, and through the vision and feeling to evaluate whether appropriate application. Of course this kind of practice is very harmful.

If the use of improper dosage, printed image or there is a greasy feel, or there will be a kind of faded feeling. In this case, the user often complain about the quality of the products can't, and ignore them in a configuration ink when use the wrong dose of additive.

Sometimes people think reducing agent and diluent is same, the concept and can lead to another misunderstanding.

Reducing agent and diluent have very big distinction, of which only reducing agent can reduce the viscosity of the ink, and thinner is will not affect ink viscosity.

If the printing time without reducing agent, you will find that printing out of the printing quality has obvious ink deposit, can appear even orange phenomenon, printing surface is not flat, there are a few small pit. And when up the screen, also from organic glass material down part of the ink. And the same printing, just in the ink to add right amount of reductant, and found that the phenomenon of ink accumulation significantly reduced, screen raise nor adhesion next ink.

Pigment less means that viscous small, less ink accumulation phenomena, and reducing agent can further improve the ink cumulate happens.

In organic glass screen printing process, if we neglect the deployment of printing ink, screen tension and applying in scraping blade pressure, then you can print out high quality organic glass screen printing craft.