Title:
HEAT-SHRINKABLE POLYESTER FILM
Document Type and Number:
Japanese Patent JP3642229
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a heat-shrinkable polyester film that is excellent in high- speed fitting properties and finish of shrinkage without setting the film thickness to a value greater than that of the conventional films in all possible uses including its use for a small size PET bottle.
SOLUTION: In a heat-shrinkable polyester film, a heat shrinkage ratio of the polyester film in a main shrinking direction is 20% or more after being treated in hot water at 70°C for 5 sec, 35-55% after being treated in hot water at 75°C for 5 sec and 50-60% after being treated in hot water at 80°C for 5 sec. Additionally, a label 2 formed from the film has a compressive strength which satisfies the following formula: y>x2.2 (wherein y represents a compressive strength (mN); and x represents a film thickness (μm)).
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Inventors:
Hideki Ito
Nori Tabota
Tsutomu Miko
Nori Tabota
Tsutomu Miko
Application Number:
JP14240699A
Publication Date:
April 27, 2005
Filing Date:
May 21, 1999
Export Citation:
Assignee:
TOYO BOSEKI KABUSHIKI KAISHA
International Classes:
B29C55/14; B29C61/00; B29C61/06; B29D7/01; B65C3/06; C08J5/18; C08L67/00; B29C63/42; B29K67/00; B29L7/00; (IPC1-7): C08J5/18; B29C61/06
Domestic Patent References:
| JP7138388A | ||||
| JP11207818A | ||||
| JP2000169601A | ||||
| JP2000218694A | ||||
| JP2000135738A | ||||
| JP11115133A | ||||
| JP2155630A |
Attorney, Agent or Firm:
Hidesaku Yamamoto