Copeblack 890 by Birla Carbon is a carbon black. It exhibits optimum performance in jet-ness, undertone, tint, gloss, stability, and rheology. Provides better pre-wetting of black, removal of the bulk of entrained air, initiation of the dispersion process, more uniform initial viscosities which provide for optimum shearing, faster and more complete dispersion on the mill, less “puffiness” of mill paste due to entrained air and reduced degradation of vehicles oversensitive to oxidation and polymerization. Offers UV protection. Copeblack 890 by Birla Carbon is used in letterpress ink applications.
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Copeblack 890 properties
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Blackness index | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Oil Absorption Number (OAN) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Particle Size, Average | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Percent volatiles, 2A-700 | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Specific Gravity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Surface Area, BET | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Surface Area, STSA | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tinting Strength | 0.0 Visible After Login | Visible After Login | Visible After Login |