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Heat shrinkable polyester film

  • US 6,720,085 B2
  • Filed: 10/17/2001
  • Issued: 04/13/2004
  • Est. Priority Date: 07/28/2000
  • Status: Expired due to Term
First Claim
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1. A heat shrinkable polyester film comprising a first polyester layer having voids (layer A) and a polyester layer (layer B) having a smaller porosity than layer A, which is formed at least on one surface of layer A, wherein the film has a brightness of not less than 70, which permits adhesion with a solvent, and wherein the film has a percentage of heat shrinkage in hot air at 95°

  • C. of 30-90% in either direction of the heat shrinkable polyester film.

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