发明公开
EP1608502A4 BAG WITH ELASTIC STRIP AND METHOD OF MAKING THE SAME
审中-公开
TASCHE MIT ELASTISCHEM STREIFEN UND VERFAHREN ZUR HERSTELLUNG DAVON
- 专利标题： BAG WITH ELASTIC STRIP AND METHOD OF MAKING THE SAME
- 专利标题（中）： TASCHE MIT ELASTISCHEM STREIFEN UND VERFAHREN ZUR HERSTELLUNG DAVON
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申请号： EP03752549申请日： 2003-09-19
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公开(公告)号： EP1608502A4公开(公告)日： 2008-07-23
- 发明人: RUSNAK JOHN , SHOEMAKER JEFF , SHAH AMIT , O'HARA SCOTT
- 申请人： GLAD PRODUCTS CO
- 专利权人： GLAD PRODUCTS CO
- 当前专利权人： GLAD PRODUCTS CO
- 优先权： US40274903 2003-03-28; US40271903 2003-03-28
- 主分类号： B31B19/90
- IPC分类号： B31B19/90 ; B65D33/30 ; B65F1/00 ; B31B1/90
摘要：
Provided is a plastic bag (100) including a live elastic strip (120) that, in the elastic strip's normal condition, contracts thereby constricting an opening of the bag to assist in retaining the bag to an object. The elastic strip includes a first region (150) that is continuously attached to a sidewall of the bag between a first side edge (106) and a second side edge (108) of the bag and a second region (152, 154) that remains unattached to the sidewall. The attached region does not contract but instead forces the portion of the sidewall to which it is attached to pucker into a serpentine path. The unattached region does contract causing the portion of the sidewall to which it is adjacent to bunch together. Also provided is a method for manufacturing a plastic bag that involves stretching a live elastic tape and continuously attaching a region of the stretched tape to a web of plastic material.
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