RD9870A is the resin color developer of modified zinc salicylate with some structure characteristics of phenolic resin. It is used for carbonless copy paper(CF or CFB). It enjoys the following advantages: Rapid color development at low temperature, high coating whiteness, good color intensity and slow light-resistant aging. RD9870A is one of Ruifeng’s leading products which are popular in the industry of carbonless copy paper at domestic and abroad.
Physical and chemical indicators of RD9870A:
|
Items |
Indices |
Test methods |
|
Appearance |
Milk white emulsion |
Visual inspection |
|
Solid content, % |
≥ 45 |
Q/XRF 001-2007 |
|
Viscosity (25 °C), mpa.s |
50～400 |
Q/XRF 001-2007 |
|
Partial diameter distribution，% |
≥60 |
Q/XRF 001-2007 |
|
pH value |
4.0～6.0 |
Q/XRF 001-2007 |
|
Zinc content (dry base), % |
≥5.5 |
Q/XRF 001-2007 |
Note: The particle size distribution in this standard specially designated cumulative frequency of 0-1 μm.