JPS55146713A - Simultaneous spreading of plural films - Google Patents

Simultaneous spreading of plural films

Info

Publication number
JPS55146713A
JPS55146713A JP5497979A JP5497979A JPS55146713A JP S55146713 A JPS55146713 A JP S55146713A JP 5497979 A JP5497979 A JP 5497979A JP 5497979 A JP5497979 A JP 5497979A JP S55146713 A JPS55146713 A JP S55146713A
Authority
JP
Japan
Prior art keywords
stretching
epsilon
poly
resin
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP5497979A
Other languages
Japanese (ja)
Other versions
JPS626488B2 (en
Inventor
Kazuo Matsukura
Kunio Murakami
Akiyoshi Kamitsuma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unitika Ltd
Original Assignee
Unitika Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unitika Ltd filed Critical Unitika Ltd
Priority to JP5497979A priority Critical patent/JPS55146713A/en
Publication of JPS55146713A publication Critical patent/JPS55146713A/en
Publication of JPS626488B2 publication Critical patent/JPS626488B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To restrain bowing phenomenon and simultaneously provide films consisting of poly-epsilon-capramide and polyethylene terephthalate which are the same in characteristics as those produced, from each signal raw mateials by a method wherein unstretched films consisting of poly-epsilon-capreamide resin an polyethylene terephthalate resin are stretched under specified conditions of temperature. CONSTITUTION:In the process of laminating an unoriented film containing more than 80% of poly-epsilon-capramide resin with an unoriented film containing more than 80% of a polyethylene terephthalate resin and biaxially stretching the laminate by tenter method, the preheating temperature immediately before orientation is set between 90 deg.C and 150 deg.C, the stretching temperature is set between 100 deg.C and 140 deg.C, the stretching laminate is subjected to heat setting at a temperature higher than the stretching temperature but lower than 230 deg.C, and the films are separated from each other. By moistening the poly-epsilon-capramide resin film in advance, the stretching can be conducted smoothly while preventing necking.
JP5497979A 1979-05-04 1979-05-04 Simultaneous spreading of plural films Granted JPS55146713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5497979A JPS55146713A (en) 1979-05-04 1979-05-04 Simultaneous spreading of plural films

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5497979A JPS55146713A (en) 1979-05-04 1979-05-04 Simultaneous spreading of plural films

Publications (2)

Publication Number Publication Date
JPS55146713A true JPS55146713A (en) 1980-11-15
JPS626488B2 JPS626488B2 (en) 1987-02-12

Family

ID=12985759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5497979A Granted JPS55146713A (en) 1979-05-04 1979-05-04 Simultaneous spreading of plural films

Country Status (1)

Country Link
JP (1) JPS55146713A (en)

Also Published As

Publication number Publication date
JPS626488B2 (en) 1987-02-12

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