JPS55146713A - Simultaneous spreading of plural films - Google Patents
Simultaneous spreading of plural filmsInfo
- 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
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.
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) |
-
1979
- 1979-05-04 JP JP5497979A patent/JPS55146713A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS626488B2 (en) | 1987-02-12 |
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