Method and composition for treating substrates for wettability

Details Method and composition for treating substrates for wettability Method and composition for treating substrates for wettability

D - Textiles, Paper

06

M

D06M 15/03 (2006.01) A61F 13/15 (2006.01) A61K 8/02 (2006.01) A61L 15/20 (2006.01) A61L 15/28 (2006.01) A61L 15/34 (2006.01) A61L 15/40 (2006.01) A61L 15/46 (2006.01) A61L 15/48 (2006.01) D06B 1/02 (2006.01) D06M 13/148 (2006.01) D06M 13/165 (2006.01) D06M 13/17 (2006.01) D06M 13/224 (2006.01) D06M 15/53 (2006.01) D06M 15/647 (2006.01) D06M 23/00 (2006.01) B05B 3/02 (2006.01)

Patent

CA 2262496

Disclosed is an improved composition and method for treating substrates such as nonwoven fabrics to impart durable properties such as wettability. The composition includes a viscosity modifier that provides reduced viscosity to normally viscous treating agents allowing them to be applied at room temperature without adversely affecting the desired properties of the treated substrate. Advantageously the treating composition includes an alkyl polyglycoside having 8 to 10 carbon atoms in the alkyl chain and a surfactant such as a blend of ethoxylated hydrogenated castor oil and sorbitan monooleate. Nonwovens treated in accordance with the invention with high solids treating compositions at room temperature have a durability of at least 2 cycles in accordance with the runoff test. The treating compositions of the invention are stable and adapted to many conventional treating systems. As little as 1 part in 20 of the addition of the alkyl polyglycoside is effective. Treated substrates such as nonwovens find many applications such as components of personal care products, wipers, environmental fabrics and the like.

Cette invention concerne une composition et un procédé améliorés pour traiter des substrats, tels que des non-tissés, en vue de leur conféter des propriétés durables comme la mouillabilité. La composition inclut un modificateur de viscosité qui confère une viscosité réduite à des agents de traitement normalement visqueux et permet leur application à température du local, sans nuire aux propriétés souhaitées du substrat traité. Pour un meilleur résultat, la composition de traitement renferme un polyglycoside d'alkyle ayant 8 à 10 atomes de carbone dans la chaîne alkyle et un surfactant, tel qu'un mélange d'huile de ricin hydrogénée oxyéthylée et de monooléate de sorbitane. Des non-tissés traités, selon le procédé de l'invention, avec des compositions de traitement à haute teneur en matière sèche à température du local, ont une durabilité d'au moins deux cycles comme le montre le test de ruissellement. Les compositions de traitement de l'invention sont stables et adaptées à de nombreux systèmes de traitement classiques. Seule une faible part sur 20 du produit d'addition du polyglycoside d'alkyle est effective. Des substrats traités (des non-tissés, par exemple) trouvent de nombreuses applications, telles que constituants de produits de soins personnels, torchons d'entretien, tissus climatiques ou autres.

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