PACKING MATERIAL, BASE MATERIAL FOR ADHESIVE TAPE, OR SEPARATOR
The present invention relates to a packaging material, base material for pressure-sensitive adhesive tape or separator, wherein a releasing agent layer, which can be discontinued so that a part of the support can be exposed, is formed on at least one surface of a film support. Further, the present i...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The present invention relates to a packaging material, base material for pressure-sensitive adhesive tape or separator, wherein a releasing agent layer, which can be discontinued so that a part of the support can be exposed, is formed on at least one surface of a film support. Further, the present invention relates to a packaging material, base material for pressure-sensitive adhesive tape or separator, wherein a releasing agent layer provided on at least one surface of a film support has cracks, through which the film support surface, i.e., the substrate, is exposed. Still further, the present invention relates to a structure of a sealing part of the above described packaging material etc. formed by heat seal processing of surfaces facing each other of releasing agent layers having cracks. |
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