Title:
HEAT SHRINKABLE POLYESTER FILM, METHOD FOR PRODUCING SAME, AND PACKAGED BODY
Document Type and Number:
WIPO Patent Application WO/2011/125435
Kind Code:
A1
Abstract:
Disclosed is a heat shrinkable polyester film which does not suffer from shrinkage (namely, natural contraction), is suppressed in decrease of the shrinkage ratio in the main shrinkage direction, and is able to be beautifully and efficiently fitted to a container or the like without changing the temperature conditions for thermal shrinkage when the heat shrinkable polyester film is fitted, as a label, to the container or the like by means of thermal shrinkage even after high-temperature summer storage in an outdoor warehouse which has no temperature control system.
Specifically disclosed is a heat shrinkable polyester film which is formed from a polyester resin that is mainly composed of ethylene terephthalate and contains 3-12% by mole (inclusive) of one or more monomer components, which can be amorphous components, relative to all the polyester resin components. The heat shrinkable polyester film is characterized in that the shrinkage ratio in 80˚C glycerol, the shrinkage ratio in 130˚C glycerol and the tensile strength at break in the longitudinal direction are controlled within specific ranges.
Inventors:
HARUTA Masayuki (10-24 Toyo-cho, Tsuruga-sh, Fukui 50, 〒9148550, JP)
春田 雅幸 (〒50 福井県敦賀市東洋町１０番２４号 東洋紡績株式会社 内 Fukui, 〒9148550, JP)
MUKOYAMA Yukinobu (10-24 Toyo-cho, Tsuruga-sh, Fukui 50, 〒9148550, JP)
春田 雅幸 (〒50 福井県敦賀市東洋町１０番２４号 東洋紡績株式会社 内 Fukui, 〒9148550, JP)
MUKOYAMA Yukinobu (10-24 Toyo-cho, Tsuruga-sh, Fukui 50, 〒9148550, JP)
Application Number:
JP2011/056163
Publication Date:
October 13, 2011
Filing Date:
March 16, 2011
Export Citation:
Assignee:
TOYO BOSEKI KABUSHIKI KAISHA (2-8 Dojima Hama 2-chome, Kita-ku Osaka-sh, Osaka 30, 〒5308230, JP)
東洋紡績株式会社 (〒30 大阪府大阪市北区堂島浜二丁目２番８号 Osaka, 〒5308230, JP)
HARUTA Masayuki (10-24 Toyo-cho, Tsuruga-sh, Fukui 50, 〒9148550, JP)
春田 雅幸 (〒50 福井県敦賀市東洋町１０番２４号 東洋紡績株式会社 内 Fukui, 〒9148550, JP)
東洋紡績株式会社 (〒30 大阪府大阪市北区堂島浜二丁目２番８号 Osaka, 〒5308230, JP)
HARUTA Masayuki (10-24 Toyo-cho, Tsuruga-sh, Fukui 50, 〒9148550, JP)
春田 雅幸 (〒50 福井県敦賀市東洋町１０番２４号 東洋紡績株式会社 内 Fukui, 〒9148550, JP)
International Classes:
B29C61/06; B29C55/12; C08J5/18; B29K67/00; B29K105/02; B29L7/00
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