发明授权
US4498274A Device for supplying and for bringing together a web of packaging material and a tear strip web 失效
用于将包装材料的网状物和撕裂带网络供给和汇集在一起​​的装置

Device for supplying and for bringing together a web of packaging
material and a tear strip web
摘要:
A tear strip is caused to move synchronously with a moving web of packaging material and the web and strip are brought into contact for subsequent joining to define a packaging material with integral tear strip. Contact between the packaging material and tear strip is effected at the surface of a rotating feed roller and a friction drive is employed to cause a supply reel for the tear strip to rotate synchronously with the feed roller.
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