Title:
熱収縮性多層フィルム及び熱収縮性ラベル
Document Type and Number:
Japanese Patent JP7269242
Kind Code:
B2
Abstract:
The present invention provides a heat shrinkable multilayer film that can prevent wrinkles or loosening after attachment when the film is attached to a container as a heat shrinkable label for dry heat shrinking, and a heat shrinkable label including the heat shrinkable multilayer film as a base film. Provided is a heat shrinkable multilayer film including: front and back layers each containing a polyester resin; and an interlayer containing a polystyrene resin, wherein the heat shrinkable multilayer film has a dimensional change in a TD represented by an equation (1) of -55 to -1000 µm as measured by thermomechanical analysis (TMA) in which the temperature of the heat shrinkable multilayer film under a load of 0.10 N is increased from 30°C to 60°C at a temperature increase rate of 5°C/min and then cooled from 60°C to 10°C at a temperature decrease rate of 5°C/min, the equation (1) being: Dimensionalchange=dimensioninTDat20°C−dimensioninTDat60°C
Inventors:
Naoki Ohno
Application Number:
JP2020528750A
Publication Date:
May 08, 2023
Filing Date:
June 10, 2019
Export Citation:
Assignee:
GUNZE LIMITED
International Classes:
B32B27/36; B32B27/30; B65B53/00; B65D23/08; B65D77/20; G09F3/04
Domestic Patent References:
| JP2009000898A | ||||
| JP2009178887A | ||||
| JP2011170379A | ||||
| JP2012131169A |
Attorney, Agent or Firm:
Patent Attorney Firm WisePlus