Non-perforated tear lines for removal and evacuation of contents of disposable undergarments such as training pants. Non-perforated tear lines include a series of bond sites which are shaped, sized, spaced and arranged to provide a zone of weakness to permit severance of nonelasticized portions as well...http://www.google.es/patents/US5624420?utm_source=gb-gplus-sharePatente US5624420 - Disposable training pants having a non-perforated tear line through elastic
Disposable training pants having a non-perforated tear line through elastic
