Chinese Non Film Forming Styrene Acrylic Polymer Emulsion For PE Plastic Printing Inks
Introduction
WQ-2011 non-film forming, hard styrene and acrylic copolymer emulsion, which is specifically formulated for water based overprint varnishes and printing inks.
WQ-2011 and Joncryl 89 has similar performance and physical properties. WQ-2011 acrylic polymer has high gloss and clarity, non-blocking and fast drying properties for OPV 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.
Physical Property:
Appearance opaque emulsion
Non-volatile %: 47
pH 8.0-9.0
Viscosity cps :800-1500
Acid number (NV) 51
Density g/cm³ :1.05
MFFT °C :> 90
Tg °C :98
Freeze-thaw stable :Yes
Performance:
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
Packing