JPS5791237A - Manufacture of thermally shrinkable tube - Google Patents
Manufacture of thermally shrinkable tubeInfo
- Publication number
- JPS5791237A JPS5791237A JP16788480A JP16788480A JPS5791237A JP S5791237 A JPS5791237 A JP S5791237A JP 16788480 A JP16788480 A JP 16788480A JP 16788480 A JP16788480 A JP 16788480A JP S5791237 A JPS5791237 A JP S5791237A
- Authority
- JP
- Japan
- Prior art keywords
- core body
- thermal
- thermally shrinkable
- shrinkability
- film
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000000654 additive Substances 0.000 abstract 1
- -1 ageing resistor Substances 0.000 abstract 1
- 230000032683 aging Effects 0.000 abstract 1
- 239000003086 colorant Substances 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229920005992 thermoplastic resin Polymers 0.000 abstract 1
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
PURPOSE: To manufacture the captioned tube having a large thermal shrinkability in the diametrical direction by a method wherein a thermally shrinkable film provided with thermal shrinkability obliquely to a length direction is coiled spirally about a heat resisting core body and heated.
CONSTITUTION: Thermoplastic resin such as PE, PP, etc. with which additives such as ageing resistor, filler, coloring agent, etc. are mixed is molded in a tube form and stretched in a diametrical direction at 80W200°C to give thermal shrinkability and then cut in a spiral direction to obtain a thermally shrinkable film 7 having thicknesses 0.05W1mm, thermal shrinking ratios 30W80% and a thermal shrinkability oblique to a length direction. Then, this film 7 is wound spirally on the heat resisting core body 6 at angles 70W85° so that its thermal shrinking direction is nearly parallel to the diametrical direction of the core body 6 and the films are laminated in a width direction. Then, it is heated at temperatures higher than the melting point and laminated parts 8 of the film 7 are welded and cooled to remove the core body 6.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16788480A JPS5791237A (en) | 1980-11-27 | 1980-11-27 | Manufacture of thermally shrinkable tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16788480A JPS5791237A (en) | 1980-11-27 | 1980-11-27 | Manufacture of thermally shrinkable tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5791237A true JPS5791237A (en) | 1982-06-07 |
Family
ID=15857857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16788480A Pending JPS5791237A (en) | 1980-11-27 | 1980-11-27 | Manufacture of thermally shrinkable tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5791237A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5959415A (en) * | 1982-09-30 | 1984-04-05 | Toyo Chem Co Ltd | Preparation of thermally shrinkable tube |
| JPS5970512A (en) * | 1982-10-15 | 1984-04-21 | Toyo Chem Co Ltd | Preparation of heat shrinkable tube |
| CN109501331A (en) * | 2018-11-16 | 2019-03-22 | 山东奥凯管材科技有限公司 | A method of producing HDPE winding reinforcing pipe |
-
1980
- 1980-11-27 JP JP16788480A patent/JPS5791237A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5959415A (en) * | 1982-09-30 | 1984-04-05 | Toyo Chem Co Ltd | Preparation of thermally shrinkable tube |
| JPS5970512A (en) * | 1982-10-15 | 1984-04-21 | Toyo Chem Co Ltd | Preparation of heat shrinkable tube |
| CN109501331A (en) * | 2018-11-16 | 2019-03-22 | 山东奥凯管材科技有限公司 | A method of producing HDPE winding reinforcing pipe |
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