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Title:
POLYESTER-BASED SHRINK FILM
Document Type and Number:
WIPO Patent Application WO/2022/059184
Kind Code:
A1
Abstract:
The present invention provides a polyester-based shrink film which has excellent wrinkle resistance characteristics.　This polyester-based shrink film satisfies the following configurations (a) to (c). (a) If the main shrinkage direction is taken as the TD direction, and A2 is the thermal shrinkage in the TD direction in cases where this polyester-based shrink film is shrunk in hot water at 90°C for 10 seconds, A2 is 53% or more. (b) If B is the maximum shrinkage stress in the TD direction at the shrinkage temperature of 90°C, B is within the range of from 2 MPa to 10 MPa. (c) The value of B/A2 is within the range of from 0.08 MPa/% to 0.15 MPa/%.

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Inventors:
KANEKO TAKUMA (JP)
KANZAKA YUICHIRO (JP)
YUGE SHUUTA (JP)
IRIFUNE TATSUYA (JP)
MIYOSHI MASANAO (JP)
Application Number:
PCT/JP2020/035521
Publication Date:
March 24, 2022
Filing Date:
September 18, 2020
Export Citation:
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Assignee:
C I TAKIRON CORP (JP)
International Classes:
C08J5/18; B29C61/06; B65D23/08; B65D65/40; B29K67/00; B29K105/02
Foreign References:
JP2019178194A2019-10-17
JP2009226934A2009-10-08
Attorney, Agent or Firm:
EMORI Kenji et al. (JP)
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