The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 1988
Filed:
Oct. 21, 1986
Kazuo Kondo, Marugame, JP;
Nobuya Ishiguro, Marugame, JP;
Okura Industrial Co., Ltd., Kagawa, JP;
Abstract
The process for preparing a thermally shrinkable multilayer film composed of a polyamide resin layer as one surface layer and a sealant material layer as the other surface layer includes the step of causing the polyamide resin layer of the oriented laminate film to absorb water in the amount of 7.0% by weight or more before or during the thermal treatment. The laminate film is then dried so as to cause the polyamide resin layer to make the water content in the range form 2.5% by weight to 6.5% by weight while maintaining the oriented laminate film at temperatures of 90.degree. C. or lower after or during the thermal treatment. The thermally shrinkable multilayer film thus prepared is suitable for thermally shrinking packing foods such as roast meat or fresh cut meat.