ELASTICIZED NONWOVEN LAMINATES
Elasticized nonwoven laminates including high recovery power polyurethane elastic fiber, articles of manufacture with these elasticized nonwoven laminates and methods for production of the elasticized laminates and articles of manufacture are provided.
1 : An elasticized nonwoven laminate comprising a high recovery power polyurethane elastic fiber and a nonwoven laminate.
2 : The elasticized nonwoven laminate of claim 1 wherein the high recovery power polyurethane elastic fiber is adhered within or juxtaposed with the nonwoven laminate.
3 : The elasticized nonwoven laminate of claim 1 wherein the high recovery power polyurethane elastic fiber exhibits a normalized recovery force, expressed as the recovery power at 200% elongation of the 5 th unload cycle, of at least 0.023 centinewtons per decitex.
4 : The elasticized nonwoven laminate of claim 1 wherein the high recovery power polyurethane elastic fiber has a decitex of 30-1500.
5 : The elasticized nonwoven laminate of claim 1 wherein the high recovery power polyurethane elastic fiber has a decitex of 33-1100.
6 : The elasticized nonwoven laminate of claim 1 wherein the high recovery power polyurethane elastic fiber comprises a polyol, an organic diisocyanate compound, and a diamine compound.
7 : The elasticized nonwoven laminate of claim 6 wherein the polyol has a minimum number average molecular weight of 450 and a maximum of 1800.
8 : The elasticized nonwoven laminate of claim 6 wherein the polyol has a minimum number average molecular weight of 450 and a maximum of 1600.
9 : The elasticized nonwoven laminate of claim 1 wherein the high recovery power polyurethane elastic fiber is adhered within or juxtaposed with the nonwoven laminate via a hot-melt adhesive.
10 : The elasticized nonwoven laminate of claim 1 wherein the high recovery power polyurethane elastic fiber is entrapped within or juxtaposed with the nonwoven laminate via an ultrasonic or thermo-mechanical method.
11 : An article of manufacture, at least a portion of which comprises the elasticized nonwoven laminate of claim 1 .
12 : The article of manufacture of claim 11 which is a disposable hygiene product, disposable diaper, training pant or adult incontinence device or product; a catamenial device, garments or product; a bandage, wound dressing, surgical drape, surgical gown, surgical or other hygienic protective mask, hygienic gloves, head covering, head band, ostomy bag, bed pad or bed sheet.
13 : The article of manufacture of claim 12 which is a disposable diaper or training pant.
14 : The article of manufacture of claim 13 wherein the elasticized nonwoven laminate is positioned at a front panel, back panel, side panel, leg cuff, leg hole, belly band and/or waist band of the diaper or training pant.
15 : A method for producing the elasticized nonwoven laminate of claim 1 , said method comprising adhering a high recovery power polyurethane elastic fiber within or juxtaposed with the nonwoven laminate.
16 : The method of claim 15 wherein the high recovery power polyurethane elastic fiber exhibits a normalized recovery force, expressed as the recovery power at 200% elongation of the 5 th unload cycle, of at least 0.023 centinewtons per decitex.
17 : The method of claim 15 wherein the high recovery power polyurethane elastic fiber has a decitex of 30-1500.
18 : The method of claim 15 wherein the high recovery power polyurethane elastic fiber has a decitex of 33-1100.
19 : The method of claim 15 wherein the high recovery power polyurethane elastic fiber comprises a polyol, an organic diisocyanate compound, and a diamine compound.
20 : The method of claim 19 wherein the polyol has a minimum number average molecular weight of 450 and a maximum of 1800.
21 : The method of claim 19 wherein the polyol has a minimum number average molecular weight of 450 and a maximum of 1600.
22 : The method of claim 15 wherein the high recovery power polyurethane elastic fiber is adhered within or juxtaposed with the nonwoven laminate via a hot-melt adhesive.
23 : The method of claim 15 wherein the high recovery power polyurethane elastic fiber is entrapped within or juxtaposed with the nonwoven laminate via an ultrasonic or thermo-mechanical method.