Multilayered polyester film
AssigneeToray Industries, Inc.
InventorsTadamasa SUZUKI, Sho TSUBOKURA, Takuji HIGASHIOJI
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Abstract
A multilayered polyester film which comprises a polyester film and, disposed on at least one surface thereof, a layer X which has a contact angel HX(1) with water of 0-60°, wherein the layer X has a degree of crystallinity C(0) of 0-30%. HX(1): Contact angle at one second after water has come into contact with layer X. A polyester film having excellent recoverability is provided by disposing a layer X on at least one surface of a polyester film, the layer X having a regulated contact angle with water and a regulated degree of crystallinity.
Claims12
A multilayered polyester film which comprises a polyester film and, disposed on at least one surface of the polyester film, a layer X which has a water contact angle HX(1) of 0° or higher and 60° or lower,
- wherein the layer X has a degree of crystallinity C(0) of 0% or more and 30% or less.
- HX(1):
- Contact angle at one second after water has come into contact with layer X
A multilayered polyester film including a polyester film and a layer Y,
- wherein water contact angles HY (1))(°) and HY (20))(°) in the layer Y satisfy the following formulas:
- 80≤HY(1)≤120,10≤|HY(1)−HY(20)|≤80
- HY(1):
- Contact angle at one second after water has come into contact with layer Y
- HY(20):
- Contact angle at 20 seconds after water has come into contact with layer Y.
Dependencies are inferred from the claim text.