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US 12,559,887 B2Granted
Unbleached natural brown copier paper and process thereof
AssigneeShree Krishna Paper Mills and Industries Limited
InventorNaynesh Pasari
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Abstract
The present invention discloses a composition of an unbleached natural brown copier paper without using any bleaching chemicals or dyes comprising of pulp extracted from waste paper material of corrugated cartons, starch, and fillers. It further includes AKD (Alkyl Ketene Dimer) and enzymes. The waste paper material includes the percentage of 30% to 60% old Indian corrugated cartons (OCC), 20% to 70% old imported corrugated cartons (OCC) and 20% to 50% white record/sorted office paper (SOP).
Claims4
A composition of an unbleached natural brown copier paper comprising:
- pulp extracted from a wastepaper material;
- starch;
- fillers;
- AKD (Alkyl Ketene Dimer);
- and
- Poly aluminium chloride (PAC),
- wherein the waste paper material comprises 30% to 60% old corrugated cartons (OCC) sourced from India, 20% to 70% OCC sourced from outside of India, and 20% to 50% white record/sorted office paper (SOP), and
- wherein the AKD is added in the range of 8 to 30 kg per ton of the paper.
5 more elements
Dependencies are inferred from the claim text.