Xiamen WangQin Chemical Technology Co., Ltd.
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High Gloss Styrene Acrylic Emulsion For Water Based Overprint Varnish For Paper
High Gloss Acrylic Emulsion For Water Based Flexographic Varnish And Ink For Polyethylene Bag
Introduction
WQ-2090 is a hard non-film-forming styrene-acrylic copolymer emulsion specially formulated for water-based overcoat varnishes and printing inks. The varnish formulated with this product has fast drying speed and high gloss, excellent water resistance and anti-stick back performance, and it has good compatibility with popular acrylic polymers on the market. Since this product cannot form a film alone, so it must be used with a suitable film-forming aids or mixed with a film-forming acrylic emulsion with a smaller particle size, such as used with our film-forming varnish emulsion WQ-2027, WQ-2024, WQ-2018, WQ-2015, etc. In addition, in flexo and gravure inks, the product has good pigment wetting.
| Suggested formula for paper water-based overprint varnish | |||
| No. | Raw Materials | % | |
| ① | WQ-2090 (hard emulsion) | 55.50 | |
| ② | WQ-224 (soft emulsion) | 25.00 | |
| ③ | WQ-2021 (water resistance/ improve gloss) | 11.00 | |
| ④ | Deionized water | 3.00 | |
| ⑤ | Wax Disperion | 5.00 | WQ-W40 or local supplier |
| ⑥ | Defoamer | 0.50 | TEGO Foamex 825 |
| Total | 100.00 | ||
| The reference formula is for customer reference only, not as a standard. Lab test results do not represent customer’s actual usage, please properly adjust formula according to actual test. | |||
Physical Property:
| Appearance | Translucent milky emulsion |
| Solid content (%) | 45±1 |
| Viscosity at 25℃,cps(Brookfield, LVT No.4,60 RPM ) | 1000-2000 |
| Acid value | 65 |
| pH value | 8.0-9.0 |
| Density(g/l) | 1.02-1.05 |
| Particle size(μm) | 0.20-0.30 |
| MFFT (℃) | >90 |
| Tg(℃) | +110 |
Performance:
Application
Storage
The product should be stored in a closed container and avoid freezing and high temperature, Suggested normal storage temperature is 10 to 35℃.
Packing
200KG/Drum.