Title:
合成樹脂製袋体用のチューブ状フィルム及びその製造方法
Document Type and Number:
Japanese Patent JP3616666
Kind Code:
B2
Abstract:
PURPOSE: To prevent the neck-in and close contact of a fin to a tube body and to integrally simultaneously mold them by integrating the one end with the body, and extending the fins of the desired number and width separate at the body from the other end along the outer or inner periphery of the body. CONSTITUTION: A fin 3 has one end 3a integral with a tube body 1 and the other end 3b separated from the body at the outer or inner periphery of the body 1. The synthetic resin tubelike film comprises the fin 3 extended along the body 1 and a fin molding slit 22 for extrusion molding the fin 3, and a peeling resin extrusion slit 23 for extruding a peeling resin layer 4 between the outer or inner periphery of the body 1 and the fin 3. A synthetic resin tubelike film is so formed as to extend the fin of the desired number and width integral with the body at one end 3a and separated at the body 1 from the other end 3b along the inner or outer periphery of the body 1 at the necessary positions of the body 1 by an inflation die 20.
Inventors:
Nakashima Shigekatsu
Application Number:
JP30165994A
Publication Date:
February 02, 2005
Filing Date:
November 11, 1994
Export Citation:
Assignee:
Production Japan Co., Ltd.
International Classes:
B65D33/25; B29C48/32; B29C55/28; B31B1/90; B29L23/00; (IPC1-7): B29C55/28; B29C47/20; B31B1/90; B65D33/25
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Attorney, Agent or Firm:
Shinichi Kikuchi
Toru Kikuchi
Toru Kikuchi