Matte finish release composition, linerless labels incorporating

Details Matte finish release composition, linerless labels incorporating Matte finish release composition, linerless labels incorporating

1997-05-19

2000-01-18

Zirker, Daniel

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428 418, 428327, 428422, 428447, B32B 712

Patent

active

060156155

ABSTRACT:
A silicone release composition having a non-gloss, i.e., matte finished, surface and a linerless label incorporating the silicone release composition. The release composition includes a crosslinked silicone-based polymer having microparticles of a polymeric wax at least partially embedded therein. The polymeric wax may be polytetrafluoroethylene, polypropylene or other polyolefin, or a hydrocarbon-based wax. The microparticles of polymeric wax cause incidental light to scatter upon reflection, giving the release composition surface matte appearance. This makes the release composition particularly useful for linerless labels on which bar coded information will be printed. Also, a method for producing linerless label stock. The method includes mixing an uncured silicone material with microparticles of a polymeric wax. The mixture is coated onto a substrate and exposed to UV radiation to cure or crosslink the silicone around the microparticles of wax. An adhesive is coated onto the side of the substrate opposite the silicone release composition and the coated substrate is wound into a roll of linerless label stock.

REFERENCES:
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patent: 4898849 (1990-02-01), Kang
patent: 5462911 (1995-10-01), Takao et al.
patent: 5658661 (1997-08-01), Mitchell, Jr. et al.
patent: 5705451 (1998-01-01), Takao et al.

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