Low temperature heat shrinkable film for labels
AssigneeGunze Limited
InventorsTomohisa Okuda, Fusazo Wada, Hiroyuki Tanaka, Hiroki Kuriu
Life of this patent
Estimating the term…
Abstract
The present invention provides a low temperature heat shrinkable film for labeling comprising at least one layer of a thermoplastic resin, in whose correlation diagram showing the relation between the heat shrinkage percentage Y at 80° C. in one direction and the heat shrinkage time t (1≦t≦5), the gradient Y′ is in an area between the gradients satisfying Equations 1 and 2 and the heat shrinkage percentage Y is in an area between the heat shrinkage percentages satisfying Equations 3 and 4: Y′=−1.05t2+12.05t (Equation 1) Y′=−0.30t2+2.90t (Equation 2) Y=−1.05t2+12.05t+40 (Equation 3) Y=−0.30t2+2.90t+9 (Equation 4)
Claims15
A heat shrinkable film for labeling comprising at least one layer of a thermoplastic resin, in whose correlation diagram showing the relation between the heat shrinkage percentage Y at 80° C. in one direction and the heat shrinkage time t (1≦t≦5), the gradient Y′ is in the area between the gradients satisfying Equations 1 and 2 and the heat shrinkage percentage Y is in the area between the heat shrinkage percentages satisfying Equations 3 and 4:
- Y′=−1.05t2+12.05t (Equation 1)
- Y′=−0.30t2+2.90t (Equation 2)
- Y=−1.05t2+12.05t+40 (Equation 3)
- Y=−0.30t2+2.90t+9 (Equation 4).
Dependencies are inferred from the claim text.