D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 11/00 (2006.01) C08J 3/09 (2006.01) C08L 27/00 (2006.01) C08L 31/04 (2006.01) C08L 39/00 (2006.01) C08L 53/00 (2006.01) C08L 53/02 (2006.01) C08L 61/04 (2006.01) D21C 9/08 (2006.01) D21H 13/00 (2006.01) D21H 15/00 (2006.01) D21H 17/00 (2006.01) D21H 19/00 (2006.01) D21H 21/00 (2006.01) D21H 21/02 (2006.01) D21H 23/00 (2006.01) D21H 25/00 (2006.01) D21H 27/00 (2006.01)
Patent
CA 2293312
The present invention provides for methods and compositions for removing stickies and pitch from papermaking fiber by first chemically treating the papermaking fiber with a composition of at least two of an oil-soluble or water-dispersible hydrophobic polymer, an oil soluble or water-dispersible surfactant having an HLB of about 1 to about 10, a tackifier, and an oil- soluble or water-dispersible solvent then mechanically separating the agglomerated stickies and pitch from the papermaking fiber.
La présente invention porte sur des procédés et des compositions permettant d'éliminer des adhésifs et la poix de la fibre de papier, et cela par un premier traitement chimique de la fibre avec une composition comprenant un ou deux polymères solubles dans l'huile ou dispersibles dans l'eau, un ou deux tensioactifs solubles dans l'huile ou dispersibles dans l'eau et ayant un rapport hydrophile-lipophile compris entre environ 1 et environ 10, un agent collant et un solvant soluble dans l'huile ou dispersible dans l'eau séparant ensuite mécaniquement les adhésifs agglomérés et la poix de la fibre de papier.
Ling Tien-Feng
Scholz William F.
Betzdearborn Inc.
Ling Tien-Feng
Moffat & Co.
Scholz William F.
LandOfFree
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