D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 27/40 (2006.01) D21F 11/00 (2006.01) D21H 23/26 (2006.01)
Patent
CA 2239927
Soft creped tissue that reduces fluid penetration can be produced by the indirect addition of chemical sizing agents to the tissue web by applying the chemical sizing agents to the surface of the Yankee dryer, such as by spraying. More specifically, the sizing agents can be included as part of the creping adhesive formulation, which is sprayed onto the surface of the Yankee dryer between the creping blade and the pressure roll. The sizing agents are subsequently transferred to the tissue sheet surface as the sheet is pressed against the Yankee dryer. The benefit of reduced fluid penetration is that hands remain drier during use.
Du papier crêpé doux qui ralentit l'imprégnation à fond peut être produit par ajout indirect d'agents d'encollage chimiques à la bande de papier, c'est-à-dire en appliquant lesdits agents à la surface du sécheur Yankee, par atomisation par exemple. Plus précisément, les agents d'encollage peuvent être intégrés à l'adhésif de crêpage que l'on pulvérise sur la surface du sécheur Yankee entre le docteur crêpeur et le rouleau presseur. Ces agents sont par la suite transférés à la bande de papier lorsque celle-ci passe sur le sécheur Yankee. Une vitesse réduite d'imprégnation à fond présente l'avantage que les mains se mouillent moins.
Borden Ladner Gervais Llp
Kimberly-Clark Worldwide Inc.
LandOfFree
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