Good Flex Resistance Polyvinyl Butyral Resin For Printing Inks
Polyvinyl butyral resin is widely used in the fields of glued
safety glass interlayer film for automobiles and buildings, rust
primer, baking paint, wood paint, printing ink, electronic ceramics
and adhesive for printed circuit boards.
Appearance: Tiny, free flowing white powder
Specification of PVB resin:
| Item | Volatile content | Non volatile content | Butyral content | Acetate content | Hydroxy content | 10% viscosity | Free acid |
| Unit | Wt-% | Wt-% | Wt-% | Wt-% | Wt-% | mpa.s | MgKOH/g |
| DR-50 | ≤2 | ≥98 | 76-85 | ≤3.0 | 12-17 | 7-9 | ≤0.5 |
| DR-40 | ≤2 | ≥98 | 76-85 | ≤3.0 | 12-17 | 9-14 | ≤0.5 |
| DR-30 | ≤2 | ≥98 | 76-85 | ≤3.0 | 12-17 | 14-20 | ≤0.5 |
| DR-20 | ≤2 | ≥98 | 76-85 | ≤3.0 | 12-17 | 20-30 | ≤0.5 |
| DR-20SP | ≤2 | ≥98 | 76-85 | ≤3.0 | 12-17 | 25-40 | ≤0.5 |
| DR-16 | ≤2 | ≥98 | 76-85 | ≤3.0 | 12-17 | 30-55 | ≤0.5 |
| DR-17 | ≤2 | ≥98 | 76-85 | ≤3.0 | 12-17 | 35-60 | ≤0.5 |
| DR-18 | ≤2 | ≥98 | 76-85 | ≤3.0 | 12-17 | 80-110 | ≤0.5 |
| DR-13 | ≤2 | ≥98 | 76-85 | ≤3.0 | 12-17 | 160-260 | ≤0.5 |
Main characteristics of PVB resin
1.Low viscosity PVB resin that is suitable for flexo and gravure
printing, has good adhesion to polyolefins, metal, cellulose
acetate, polyester, cellophane paper, polyamide and polystyrene
film;
2.Low viscosity PVB resin as the foundation of the printing ink
shows a low solvent resistance, good liquidity, good waterproof,
which could be independently used as the basic resin, and could be
used together with alcohol soluble nitrocellulose, alkyd resin,
maleic resin and other natural polymer;
3.Suggested quantity added to: 18-30% for DR-40; 15-20% for DR-30;
10-15% for DR-20; 5-15% for DR-16/DR-17/DR-18;
4.Dissolve under normal temperature (25 ℃ ), the dissolution time
is 30 minutes min., this characteristic has greatly increased the
ink’s solubility;
5.Low viscosity PVB resin has good wettability and pigment
dispersion;
6. Non-toxic, tasteless, odorless, no aromatic element, no heavy
metal, no plasticizer, is the first choice of resin for environment
friendly printing ink.
Storage condition of PVB resin:
Under a dry and cool (25 ℃ or less) condition, the product can be
stored for at least 12 months if sealed in original packaging.
Preventive measures: during the operation process of
dissolving,appropriate take safety measures, and prevent
electrostatic.
