| 摘要 |
<p>The present invention provides a waterbased self seal adhesive system utilizing a self seal adhesive gontaining no natural rubber. The self seal adhesive system is comprised of a transfer adhesive disposed on a transfer web and an anchor adhesive disposed on an anchor web with the two adhesives forming the seal for the package. The self seal adhesives bond to themselves when pressure is applied to close or seal the packaging material. When peeled apart, the adhesive splits, adhesively fails from either or both the front web or the back web, or destroys one or both of the substrates of the package. Primer coatings may also be used to enhance performance of the self seal adhesive.</p> |
