Title:
PRODUCTION OF LAMINATED THERMOPLASTIC RESIN FILM
Document Type and Number:
Japanese Patent JP3725957
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To produce a laminated thermoplastic resin film good in the mutual bonding strength of thermoplastic resin films laminated by extrusion lamination, capable of being controlled to a definite small range in its shrinkage factor at a time of lamination and capable of preventing the generation of wrinkles or printing disturbance.
SOLUTION: First and second thermoplastic resin films 41, 42 to be laminated are introduced into the gap between the metal endless belt 15 being in contact with a first roll 13 and a third roll 16 and bonded under pressure in a planar state by the first and third rolls 13, 16 while an elastic material 18 is elastically deformed by the pressing force of both rolls 13, 16 to be laminated to produce a laminated thermoplastic resin film 43.
Inventors:
Junji Fujii
Akira Funaki
Uchiyama Katsumi
Toru Yukumoto
Akira Funaki
Uchiyama Katsumi
Toru Yukumoto
Application Number:
JP3790597A
Publication Date:
December 14, 2005
Filing Date:
February 21, 1997
Export Citation:
Assignee:
IDEMITSU KOSAN CO.,LTD.
International Classes:
B32B37/15; (IPC1-7): B32B31/30
Domestic Patent References:
| JP7178881A | ||||
| JP39012472B1 | ||||
| JP4033529U |
Attorney, Agent or Firm:
Kinoshita Minoru
Kanji Nakayama
Tsuyoshi Ishizaki
Kanji Nakayama
Tsuyoshi Ishizaki