Sign screen printing ink is introduced in the making
Sign screen printing ink is introduced in the making at present in the process of plate making screen printing, printing ink types, common ink generally can be divided into: metal, plastic and common printing ink.
So in the selection of ink (
When need to choose according to the actual profile is special sign screen printing ink, in production to have the effect of get twice the result with half the effort.
Here are some sign making the silk screen printing ink: 1.
Baked enamel: a single fluid formula, when heated attacks crosslinking, better storage function, can be stored for 6 months to a year.
Good finish, wear-resisting, chemical resistance and weather resistance function, thus the most widely used.
Alkyd, acrylic and polyester with these features.
Epoxy resin has a tendency to craze and pulverization, usually not in the applied field, but it's boring fast, chemical corrosion resistance characteristics.
Alkyd enamel Hu Pingheng physical properties, such as chemical resistance and weathering resistance, formability, hardness and gloss, extensive used for coating on the surface of the metal, usually large and medium-sized transport vehicles, machinery, electrical equipment, and other difficult to bake industrial products, etc.
Air dry enamel: common drunk acid, complete curing with oxygen in the air.
Drunk enamel function by using the type and quantity.
The longer the paint dry time, enamel boring time is long.
When the conditions for boring speed, boring time long paint usually has a good durability performance.
The paint used for outdoor metal sign.
Evaporation ink: melting only depends on the solvent to finish boring and coating mixture liquid polymer before final performance according to the inherent material properties.
Such rich in thermoplastic acrylic polymer, to wield is given priority to with sex of the silk screen printing ink often often harm by dissolving, there are some insoluble in gasoline and alcohol acrylate, the film surface.
Therefore, in order to thermoplastic acrylic acid, ethylene and other soluble polymer as the main part of most of the ink on the base material of the plastic tag.
Double liquid ink: common is epoxy or polyurethane, although there are many other kinds.
Often in materials with double fluid system is the most correct choose save energy, its coating quality is high, but the mix is not convenient.
In addition to in terms of the use of products to choose, if the products are used in outdoor, and need to have some flexibility, you can choose to aliphatic hydrocarbon as the main body of urethane ink.
Double liquid epoxy resin ink and the use function of type baking enamel basic same, but formability is not good enough.
Ink additives: as with other ink, metal panels with silk screen printing ink additive.
Production need to add a small amount of chemical agent, to improve the performance of the ink film, have to speed up the curing or curing function, but also can make the bubble rupture, ink evenly, avoid conjunctival etc, to according to the practical production in proportion to allocate, additives and the ink is mixed with best effect.