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    • 10. 发明授权
    • Method of making a laminate having variable adhesive properties
    • 制造具有可变粘合性能的层压体的方法
    • US5591290A
    • 1997-01-07
    • US376742
    • 1995-01-23
    • Peter A. WalterWayne E. Richter
    • Peter A. WalterWayne E. Richter
    • C09J7/02B32B31/16C09J5/00
    • C09J7/0232C09J7/0207C09J2201/28C09J2483/005Y10T156/1195
    • The adhesive bonding strength of a pressure sensitive adhesive on a laminate is selectively modified by applying a discontinuous layer of a non-adhesive material to the pressure sensitive adhesive. Preferably, the laminate is a preformed, label stock, including a label or substrate having a pressure sensitive adhesive on one surface thereof and a release sheet overlying the adhesive. The label is first delaminated from the release sheet to expose the oppositely facing surface of the label and the release sheet. A discontinuous layer of the non-adhesive material is then printed on either the release sheet or the adhesive. The release sheet is relaminated back onto the label to form a modified laminate with new adhesive properties. When the label is then separated from the release layer, the non-adhesive material adheres to the pressure sensitive adhesive to reduce the exposed surface area of the adhesive.
    • 通过将非粘合材料的不连续层施加到压敏粘合剂上,对层压体上的压敏粘合剂的粘合强度进行选择性地改性。 优选地,层压体是预成型的标签原料,包括在其一个表面上具有压敏粘合剂的标签或基材和覆盖粘合剂的剥离片。 标签首先从剥离片剥离,露出标签和剥离片的相对面。 然后将非粘性材料的不连续层印刷在剥离片或粘合剂上。 将剥离片材再次回到标签上以形成具有新粘合剂性质的改性层压材料。 当标签然后从剥离层分离时,非粘合材料粘附到压敏粘合剂上以减少粘合剂的暴露表面积。