JPS57174372A - Manufacture of adhesive tape - Google Patents
Manufacture of adhesive tapeInfo
- Publication number
- JPS57174372A JPS57174372A JP5965581A JP5965581A JPS57174372A JP S57174372 A JPS57174372 A JP S57174372A JP 5965581 A JP5965581 A JP 5965581A JP 5965581 A JP5965581 A JP 5965581A JP S57174372 A JPS57174372 A JP S57174372A
- Authority
- JP
- Japan
- Prior art keywords
- polyethylene terephthalate
- drawing ratio
- film
- adhesive
- coated
- 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.)
- Pending
Links
Landscapes
- Adhesive Tapes (AREA)
Abstract
PURPOSE: To obtain an adhesive tape having an impact strength high enough to withstand to be encountered during use, by a method in which an unstretched polyethylene terephthalate film is subjected to a biaxial stretching process at a specific drawing ratio and then coated with an adhesive.
CONSTITUTION: In stretching an unstretched polyethylene terephthalate in vertical and lateral directions, the film is subjected to a simultaneous or consecutive biaxial stretching process at a vertical drawing ratio of 3.2W3.75, a lateral drawing ratio of 3.0W3.6, and a whole area drawing ratio of 13.0 or less and at a temperature at which the refractive index in the thickness direction of the biaxially stretched polyethylene teraphthalate film is 1.491 or more. Then, an adhesive is coated on the surface of the biaxially stretched polyethylene terephthalate film. The polyethylene terephthalate used contains a copolymer having a repeating unit whose 85mol% or more is ethylene terephthalate unit and the balance of an acid or glycol component other than terephthalic acid or ethylene glycol.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5965581A JPS57174372A (en) | 1981-04-22 | 1981-04-22 | Manufacture of adhesive tape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5965581A JPS57174372A (en) | 1981-04-22 | 1981-04-22 | Manufacture of adhesive tape |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57174372A true JPS57174372A (en) | 1982-10-27 |
Family
ID=13119430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5965581A Pending JPS57174372A (en) | 1981-04-22 | 1981-04-22 | Manufacture of adhesive tape |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57174372A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5256140A (en) * | 1975-11-05 | 1977-05-09 | Teijin Ltd | Adhesive tapes |
-
1981
- 1981-04-22 JP JP5965581A patent/JPS57174372A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5256140A (en) * | 1975-11-05 | 1977-05-09 | Teijin Ltd | Adhesive tapes |
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