printing full matt varnish for paper

Specifications printing full matt varnish for paper

1. excellent smooth

2. good leveling,

3.abrasion resistance

Product  description:
GB904A printing full matt varnish for paper is suitable for offset printing press, independent varnishing machine. This product have high matte effects, high smooth modulus, good leveling, abrasion resistance, and anti-sticky , non-sticky roller etc. This product is fit for special matte effects packing printed matter. Not only do it increase surface smoothness of color paper and abrasion resistance, but also remove gloss, making printed materials are elegant and classical. Technology parameter:

Appearance	micro-milky
Viscosity	14--20S ( 25°C,4# Zahn cup )
Solid contents	(45±3)%
Wearing resistance	≥400 times (4 lb weight ,face to face)
Gloss	5—15(depending on paper and varnishing machine)
PH value	8.0-9.0

Instructions: 1.Stir must be fully before use, maintain internal composition uniformly. After opening, storage should be stamped seal, stop impurity from polluting varnish and effective solvent volatilization in varnish, prevent affecting varnish performance. 2. According to coating machine and climate, add appropriate thinner (water) or mix liquid of alcohol with water (2:1) dilute. In order to avoid loss of gloss and keep wearing resistance, according to season,roller coating varnishing can dilute about 5% thinner,on line machine varnishing can directly use. During use, when varnish viscosity is too high, appropriate thinner should be added to adjust right viscosity. 3.Varnishing amount should depend on paper quality, generally: 2-5g/m2 on varnishing machine, 3-6g/m2 on line machine. Note:
1.Varnishing amount should take paper thinkness as principle. If dilution is excessive, it will affect adhesion flexibility and degree of cover; On the contrary, dilution is insufficient, it will result in varnish coating too thick, poor liquidity.
2.Drying method can adopt infrared, hot air, or heat pipe heating and drying.
3.Because water based varnish is difficult to wash after drying, so it must keep roller in state of moving and varnish cycle. Before shutdown, roller must be washed, prevent dry.
4.This product is water based varnish. When laminating, please try to choose neutral or week alkali (PH≤11) adhesives. Please strictly control amount of glue, prevent excessive glue penetrate paper from anti sticky.
5.Regularly wash varnishing equipment and store varnish tank. Prevent impurity and precipitate in tank dissolve in varnish from affecting varnish quality. Storage environment: sealed and stored in dark and dry and cool place; store temperature is 5-30°C.
Shelf life: six month under normal circumstances