JPS55154126A - Forming method and device for inflation film - Google Patents
Forming method and device for inflation filmInfo
- Publication number
- JPS55154126A JPS55154126A JP6224179A JP6224179A JPS55154126A JP S55154126 A JPS55154126 A JP S55154126A JP 6224179 A JP6224179 A JP 6224179A JP 6224179 A JP6224179 A JP 6224179A JP S55154126 A JPS55154126 A JP S55154126A
- Authority
- JP
- Japan
- Prior art keywords
- film
- diameter
- inflated
- slenderized
- extruded
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
- B29C48/902—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies internally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
- B29C48/913—Cooling of hollow articles of tubular films externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
PURPOSE:To enable high-speed forming of a film of high quality by a method wherein the film diameter of a melted film extruded from a round die is inflated up to a specified value under a cooling wind, then slenderized, and again inflated, thereby bubbles of the melted film is stabilized. CONSTITUTION:A melted film 2 extruded from a round die 1 in diameter of A is inflated along the 1st bubble stabilizing body 4 with the diamter B 1.2-2.5 times (preferably 1.4-2.0 times) larger than the diameter A under a cooling wind blown from an airing 3 along the extruding direction, and then is slenderized so that it touches the 2nd bubble stabilizing body 5 with smaller diameter C than the diameter B. After that, it is inflated again up to a desired blowup ratio and, after a frost line 6 being generated, is cured, thereby an inflation film being obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6224179A JPS55154126A (en) | 1979-05-22 | 1979-05-22 | Forming method and device for inflation film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6224179A JPS55154126A (en) | 1979-05-22 | 1979-05-22 | Forming method and device for inflation film |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55154126A true JPS55154126A (en) | 1980-12-01 |
Family
ID=13194444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6224179A Pending JPS55154126A (en) | 1979-05-22 | 1979-05-22 | Forming method and device for inflation film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55154126A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58101018A (en) * | 1981-12-10 | 1983-06-16 | Showa Denko Kk | High-density polyethylene inflation film and method of molding the same |
JPS59136224A (en) * | 1983-01-25 | 1984-08-04 | Sumitomo Chem Co Ltd | Ultra-high impact resistant film and preparation thereof |
JPS61195823A (en) * | 1985-02-26 | 1986-08-30 | Asahi Chem Ind Co Ltd | Manufacture of tubular film and its device |
US4626397A (en) * | 1984-10-29 | 1986-12-02 | Union Camp Corporation | Method for controlled orientation of extruded resins |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5322095A (en) * | 1976-08-11 | 1978-03-01 | Koyo Kougiyou Kk | Palnts for fish culture |
-
1979
- 1979-05-22 JP JP6224179A patent/JPS55154126A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5322095A (en) * | 1976-08-11 | 1978-03-01 | Koyo Kougiyou Kk | Palnts for fish culture |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58101018A (en) * | 1981-12-10 | 1983-06-16 | Showa Denko Kk | High-density polyethylene inflation film and method of molding the same |
JPS59136224A (en) * | 1983-01-25 | 1984-08-04 | Sumitomo Chem Co Ltd | Ultra-high impact resistant film and preparation thereof |
JPH0361574B2 (en) * | 1983-01-25 | 1991-09-20 | Sumitomo Chemical Co | |
US4626397A (en) * | 1984-10-29 | 1986-12-02 | Union Camp Corporation | Method for controlled orientation of extruded resins |
JPS61195823A (en) * | 1985-02-26 | 1986-08-30 | Asahi Chem Ind Co Ltd | Manufacture of tubular film and its device |
JPH0550377B2 (en) * | 1985-02-26 | 1993-07-28 | Asahi Chemical Ind |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR920701337A (en) | Resin composition for film and manufacturing method of film using same | |
DE3067545D1 (en) | Device for influencing the weight of a hollow thermoplastic body produced by the extrusion-blowing method | |
CA2145500A1 (en) | Oriented polyolefin film with amorphous polymer, a process for its production and its use | |
JPS56167417A (en) | Method and apparatus for forming plastic film | |
ATE33364T1 (en) | METHOD AND DEVICE FOR THE MANUFACTURE OF FOAMED PLASTIC BODIES. | |
JPS55154126A (en) | Forming method and device for inflation film | |
GB1318225A (en) | Method for producing biaxially molecularly-oriented poly-epsilon- caproamide resin film | |
GB973621A (en) | Improvements in or relating to plastics tube manufacturing methods and devices | |
JPS5324431A (en) | Production of glass fibers | |
JPS5644628A (en) | Continuous manufacturing method and apparatus for profile tube | |
ATE121671T1 (en) | DEVICE FOR PRODUCING TUBULAR FILMS. | |
JPS5521258A (en) | Producing method of polyamide polymer stretched film | |
EP0077661A3 (en) | Process and apparatus for forming a plastics film | |
GB953901A (en) | Improvements in or relating to a process of making polypropylene film | |
GB1052884A (en) | Extrusion process and apparatus for obtaining internally reinforced blown tubular films of plastics | |
JPS54139965A (en) | Method of blowing air into stretching tube of thermoplastic resin and device therefor | |
JPS5226994A (en) | Manufacturing method of packaging sheet | |
JPS56139919A (en) | Manufacture of steel pipe coated with resin | |
JPS57129722A (en) | Manufacture of synthetic paper | |
JPS5759716A (en) | Method for molding pva film by t die | |
JPS5724221A (en) | Manufacture of highly foamed polypropylene | |
JPS5747621A (en) | Production of transparent film of thermoplastic resin | |
JPS5617226A (en) | Production for stretchable inflated film of polyethylene | |
JPS5646729A (en) | Internal portion stabilizing device for tubular film | |
JPS6456530A (en) | Manufacture of polyarylate film |