Dryer-activated fabric conditioning articles with improved...

D - Textiles – Paper – 06 – M

Patent

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Details

D06M 23/02 (2006.01) C11D 17/04 (2006.01) D04H 3/16 (2006.01) C11D 1/40 (2006.01) C11D 1/62 (2006.01)

Patent

CA 2253618

Dryer-activated fabric softening articles having improved spun-bonded polyester substrates having improved feel characteristics and increased thickness as compared to conventional polyester substrates and/or feel characteristics that are not significantly different from conventional rayon substrates, after use in an automatic clothes dryer, said articles comprising: (A) at least about 5 % fabric conditioning composition comprising fabric conditioning active; and (B) a polyester non- woven fabric substrate prepared from a polyester fiber having a denier of from 5 to about 8, preferably from 5 to about 7, and more preferably about 6, said substrate having a basis weight of from about 0.53 oz/yd2 to about 0.59 oz/yd2, a thickness of from about 0.16 mm to about 0.23 mm, and, preferably a tear strength of at least about 3 lbs/in2, preferably from about 4 to about 7 lbs/in2 in the cross direction and from about 3.1 to about 6 lbs/in2 in the machine direction, and "belt fuzz" and "jet fuzz" grades, as described herein, of from about 1.8 to about 2.9, preferably from about 2 to about 2.7, more preferably from about 2.2 to about 2.5, said polyester having improved loft as compared to a similar polyester substrate prepared from 4 denier fiber.

Articles d'adoucissement de tissu, activés par la sécheuse automatique de linge, ayant des substrats en polyester non-tissés améliorés présentant des caractéristiques de toucher améliorées et une plus grande épaisseur par rapport aux substrats de polyester classiques et/ou des caractéristiques de toucher qui ne diffèrent pratiquement pas des substrats en rayon classique, après utilisation dans une sécheuse à linge automatique, lesdits articles comprenant: (A) au moins 5 % environ d'une composition de conditionnement de tissu comprenant un agent de conditionnement de tissu; et (B) un substrat de tissu non-tissé en polyester préparé à partir d'une fibre de polyester ayant un denier compris entre 5 et 8 environ, de préférence entre 5 et 7 environ, et plus préférablement d'environ 6, ce substrat ayant un poids de base compris entre 0,53 oz/yd<2> environ et 0,59 oz/yd <2> environ, une épaisseur comprise entre 0,16 mm environ et 0,23 mm environ et, de préférence, une résistance au déchirement d'au moins 3 lbs/in<2> environ, de préférence comprise entre 4 environ et 7 lbs/in<2> environ dans le sens transversal et comprise entre 3,1 environ et 6 lbs/in<2> environ dans le sens machine, et des degrés "de duvet de courroie" et "le duvet de jet", comme indiqués dans la description, compris entre 1,8 environ et 2,9 environ, de préférence entre 2 environ et 2,7 environ, plus préférablement entre 2,2 environ et 2,5 environ, ce polyester ayant une résilience améliorée par rapport à un substrat polyester similaire préparé à partir d'une fibre 4 denier.

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