WQ-2011 Water Based Acrylic Emulsion
Introduction
WQ-2011 is a non-film forming, hard styrene and acrylic copolymer emulsion specifically formulated for water based overprint varnishes and printing inks. The varnish formulated with WQ-2011 has fast drying, excellent re-solubility and high gloss, excellent water resistance and anti-sticking properties. Also it has good pigment wetting in flexography and gravure inks.
WQ-2011 has good compatibility with the popular acrylic polymers on the market. Since WQ-2011 cannot form film by itself, it must be used with right film-forming acrylic emulsions, such as our film-forming varnish emulsions WQ-234, WQ-227 etc.
Physical Property:
| Appearance | Translucent milky emulsion |
| Solid content (%) | 47±1 |
| Viscosity at 25℃,cps(Brookfield, LVT No.4,60 RPM ) | 800-1500 |
| Acid value | 51 |
| pH value | 8.0-9.0 |
| Density(g/l) | 1.02-1.05 |
| Particle size(μm) | 0.10-0.20 |
| MFFT (℃) | >90 |
| Tg(℃) | +98 |
Performance:
- Fast drying and high gloss
- High clarity
- Good resisitance to heat and abrasion
- Good anti-sticking (non-blocking)
- Excellent re-solubility
Reference Formulation Water Based Varnish For Plastic Substrate (Flexography)
| No. | Raw Materials | % | |
| ① | WQ-2015 (film-forming) | 70.00 | |
| ② | WQ-2011 (non-film forming) | 19.00 | |
| ③ | WQ-2028 (improving gloss) | 5.50 | |
| ④ | Wax emulsion | 4.00 | |
| ⑤ | DOWSIL™ 51 : Ethanol (1:1) * | 1.00 | Dow Corning |
| ⑥ | Defoamer | 0.50 | TEGO Foamex 825 |
| Total | 100.00 | |
Remark:
1. ①＋②＋③+④+⑤＋⑥
Add the above materials and stir at the same time, at a constant speed, stirring time: about 30 minutes/300 rpm.
2. *: DOWSIL™ 51 Additive diluted with Ethanol =1:1
3. 4# cup: 25 seconds ± 2
PH value: 8.20 ± 0.5%
4. Final inks: varnish 70%+pigment paste 30% =100 (Ajusting it accoring to needs) |
Application
- Flexo and gravure printing inks
- Overprint varnish
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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