Elastic strand bonded laminate
View Patent ↗A simplified elastic laminate is made from nonwovens and is especially suitable for side panels of training pant garments or the like. A plurality of thermoplastic adhesive elastomeric fibers are located between first and second facing webs. The fibers have an elastic core and adhesive surfaces. The facing webs, with the elastomeric fibers between them, are calendered together thus adhering the facing webs together via contact adhesion with the elastomeric fibers.
1. An elastic laminate, comprising:
a) a first facing web;
b) a second facing web;
c) a plurality of thermoplastic elastomeric fiber strands located between the first facing web and the second facing web; and
d) the fiber strands having an elastic core and adhesive surfaces and bonding the first facing web and the second facing web together by contact adhesion with the adhesive surfaces of the fibers to create the elastic laminate.
2. A disposable garment including the elastic web of claim 1 incorporated therein as a side panel.
3. An elastic laminate, comprising:
a) a first web constructed to be on an interior side of a garment;
b) a second web constructed to be on an exterior side of the garment;
c) a plurality of thermoplastic elastomeric fibers located between the first web and the second web; and
d) the fibers having an elastic core and adhesive surfaces and bonding the first web and the second web together by contact with the adhesive surfaces of the fibers to create the elastic laminate.
4. The elastic laminate according to claim 3 wherein the thermoplastic fibers have elastic cores which are nonadhesive.
5. The elastic laminate according to claim 3 wherein the thermoplastic fibers having a melting point over 200 degrees F.
6. The elastic laminate according to claim 3 wherein the first web is a nonwoven web of between about 0.1 osy and about 4.0 osy basis weight comprising substantially continuous spunbond polypropylene filaments.
7. The elastic laminate according to claim 3 wherein the second web is a nonwoven web of between about 0.1 osy and about 4.0 osy basis weight comprising substantially continuous spunbond polypropylene filaments.
8. The elastic laminate according to claim 3 wherein the first web is a nonwoven web.
9. The elastic laminate according to claim 3 wherein the second web is a nonwoven web.
10. The elastic laminate according to claim 4 wherein the thermoplastic fibers include a bicomponent fiber of substantially sheath/core or partial sheath/core morphology wherein a core section of the fiber is a nonadhesive elastomer and a sheath section is an adhesive.
11. The elastic laminate according to claim 5 wherein the thermoplastic fibers include a homofilament comprising a thermoplastic elastomeric polymer with a tackifier compound therein, the tackifier being concentrated at the surface of the filament to be the adhesive.
12. The elastic laminate according to claim 11 wherein the homofilament comprises an elastic block copolymer.
13. The elastic laminate according to claim 12 wherein the tackifier includes hydrogenated hydrocarbon resin tackifier.
14. The elastic laminate according to claim 10 wherein the adhesive is an elastomer/tackifier blend.
15. The elastic laminate according to claim 10 wherein the fiber is a spunbond bicomponent.
16. The elastic laminate according to claim 10 wherein the fiber is a meltblown bicomponent.