Degreased fiber pulp from waste paper and cardboard with digital printing
BG5923U1Active Publication Date: 2026-08-17INST PO TSELULOZA I HARTIA AD
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Patent Information
- Application Number
- BG7460U
- Authority / Receiving Office
- BG · BG
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2026-07-17
- Publication Date
- 2026-08-17
- Estimated Expiration
- 2036-07-17
Abstract
Degreased fiber pulp obtained from waste paper and / or digitally printed cardboard through flotation degreasing in the presence of catalytic additives containing salts of trivalent metal ions and surfactants. The de-oiled fibrous pulp has a brightness of between 90% and 92%, a degree of de-oiling of not less than 60%, a dry matter content of 35% to 45%, and a crude weight content of not more than 1.0%.
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Citation Information
Patent Citations
Process for the flotation of fillers from waste paper
CA1289304C
Waste paper treatment process
US6159381A