D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 23/72 (2006.01) D21H 21/22 (2006.01) D21H 25/08 (2006.01) D21H 19/84 (2006.01)
Patent
CA 2372779
A process for applying a chemical additive, such as a softener, to a fibrous web comprises the steps of: providing a fibrous web having a first side and a second side opposite to the first side; providing a chemical additive; depositing the chemical additive only to the first side of the fibrous web; causing the first side of the fibrous web to contact the second side of the fibrous web thereby partially transferring the chemical additive from the first side to the second side of the fibrous web such that both the first side and the second side of the fibrous web comprise the chemical additive in a functionally sufficient amount. Preferably, the step of causing the two sides of the web to contact comprises winding the web into a roll.
L'invention concerne un procédé pour appliquer un additif chimique, tel qu'un adoucissant, sur une nappe fibreuse. Le procédé consiste à prendre une nappe fibreuse présentant un premier côté et un deuxième côté opposé au premier côté; à se proccurer un additif chimique; à déposer l'additif chimique uniquement sur le premier côté de la nappe fibreuse; à amener le premier côté de la nappe fibreuse au contact du deuxième côté de la nappe fibreuse de manière à imprégner les deux côtés de la nappe fibreuse d'une quantité effective suffisante. De préférence, l'étape de mise en contact des deux côtés de la nappe fibreuse consiste à enrouler la bande en bobine.
Ficke Jonathan Andrew
Vinson Kenneth Douglas
Dimock Stratton Llp
The Procter & Gamble Company
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