Water Based Varnish High Coverage Acrylic Emulsion For Corrugated Boxes Kraft Paper
High Coverage Acrylic Emulsion For Water Based Varnish For Corrugated Boxes Kraft Paper
Introduction
WQ-2031 is a high performance hard non-film forming styrene-acrylic copolymer emulsion specially formulated for water based printing inks. Its particle distribution is uniform and fine, with excellent covering performance, strong adhesion, good color development to pigments, and good printability; it generally used with WQ-227 film-forming emulsion,for flexo varnish for corrugated boxes & kraft paper.
Physical Property:
| Appearance | Translucent milky emulsion |
| Solid content (%) | 50±1 |
| Viscosity at 25℃,cps(Brookfield, LVT No.4,60 RPM ) | 1600-2500 |
| Acid value | 25 |
| pH value | 7.5-8.5 |
| Density(g/l) | 1.02-1.05 |
| Particle size(μm) | 0.20-0.30 |
| MFFT (℃) | 75 |
| Tg(℃) | +75 |
Performance:
- Strong adhesion
- Good coverage
- Fast drying
- Good ink transfer and printability
- Good compatibility with popular acrylic polymers on the market
- Good color development to pigments, high gloss,
- Good scrub resistance, excellent printing stability
- Excellent hiding of brown kraft paper
- Low odor
Suggested formula for water-based varnish(corrugated boxes & kraft paper)
| No. | Raw Materials | % | |
| ① | WQ-2031 (non-film forming) | 67.50 | |
| ② | WQ-227 (film-forming) | 11.00 | |
| ③ | WQ-109 resin solution * | 15.00 | |
| ④ | Pure water | 3.00 | |
| ⑤ | Wax emulsion | 2.00 | |
| ⑥ | Aerosol® OT-75 Leveling agent | 1.00 | Cytec |
| ⑦ | Defoamer | 0.50 | |
| Total | 100.00 | ||
Application
- Suitable for the substrates like corrugated paper or kraft paper
- Suitable for flexo and gravure printing ink
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.
Special Tips
This material is complied according to our existing technology and experience, the technical advice provided is sincere, but it is not guaranteed to be used in all samples and formulations, all the data are for users reference only.
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