12-04-2018 дата публикации
Номер: US20180099495A1
Принадлежит:
A method of manufacturing an elastic film laminate includes stretching an elastic film in at least one direction at a first draw ratio, relaxing the elastic film, stretching the elastic film at least once more in the at least one direction at a second draw ratio less than the first draw ratio, and laminating the elastic film to at least one substrate web. 1. A method of manufacturing an elastic film laminate , the method comprising:stretching an elastic film in at least one direction at a first draw ratio;relaxing the elastic film;stretching the elastic film at least once more in the at least one direction at a second draw ratio less than the first draw ratio; andlaminating the elastic film to at least one substrate web.2. The method according to claim 1 , wherein the at least one direction includes the machine direction.3. The method according to claim 1 , wherein the at least one direction includes the cross direction.4. The method according to claim 1 , wherein the first draw ratio is 4:1.5. The method according to claim 1 , wherein the first draw ratio is 3.1:1.6. The method according to claim 1 , wherein the first draw ratio is 5:1.7. The method according to claim 6 , wherein the second draw ratio is 4.5:1.8. The method according to claim 6 , wherein the second draw ration is 4:1.9. The method according to claim 1 , further comprising perforating the elastic film after stretching the elastic film in the at least one direction at the first draw ratio.10. The method according to claim 1 , wherein the elastic film comprises an elastic core and at least one skin layer.11. The method according to claim 1 , wherein the at least one substrate web comprises a nonwoven web. This application is a continuation application of U.S. patent application Ser. No. 13/200,776, filed Sep. 30, 2011 and issuing as U.S. Pat. No. 9,821,542 on Nov. 21, 2017, which is a divisional application of U.S. patent application Ser. No. 11/729,346, filed Mar. 28, 2007 and now abandoned, which ...
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