JPS5617227A - Method and apparatus for folding inflated film - Google Patents

Method and apparatus for folding inflated film

Info

Publication number
JPS5617227A
JPS5617227A JP9319579A JP9319579A JPS5617227A JP S5617227 A JPS5617227 A JP S5617227A JP 9319579 A JP9319579 A JP 9319579A JP 9319579 A JP9319579 A JP 9319579A JP S5617227 A JPS5617227 A JP S5617227A
Authority
JP
Japan
Prior art keywords
film
folding device
side plates
folding
undergone
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
Application number
JP9319579A
Other languages
Japanese (ja)
Inventor
Sumio Goto
Toshio Taka
Hideaki Toda
Hisashi Hatano
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Priority to JP9319579A priority Critical patent/JPS5617227A/en
Publication of JPS5617227A publication Critical patent/JPS5617227A/en
Pending legal-status Critical Current

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
    • B29C48/03—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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To obtain the film free of sag and wrinkle by a method wherein the inflated film of thermoplastic resin having undergone bubble forming is passed through a specified folding device to bring the temperature difference in the circumferential direction of the film to below the predetermined value. CONSTITUTION:A tubular film 1 having undergone bubble forming is passed through a substantially enclosed folding device composed of the folding device 2 and two side plates 3 for shutting the side portions of the folding device 2, the folding device 2 consisting of two flat plates and being capable of opening and closing freely. The side plates 3 and the like are so arranged that, when the tubular film 1 is introduced from an opening portion 4 and discharged via a linear slit opening portion 5 at the top, the temperature difference between those portions of the film which contact the folding device and those portions of the film which do not contact the folding device is less than 10 deg.C. A device 3c wherein the entire peripheral wall of the side plates 3 is integrated may also be used.
JP9319579A 1979-07-24 1979-07-24 Method and apparatus for folding inflated film Pending JPS5617227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9319579A JPS5617227A (en) 1979-07-24 1979-07-24 Method and apparatus for folding inflated film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9319579A JPS5617227A (en) 1979-07-24 1979-07-24 Method and apparatus for folding inflated film

Publications (1)

Publication Number Publication Date
JPS5617227A true JPS5617227A (en) 1981-02-19

Family

ID=14075791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9319579A Pending JPS5617227A (en) 1979-07-24 1979-07-24 Method and apparatus for folding inflated film

Country Status (1)

Country Link
JP (1) JPS5617227A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59148390A (en) * 1983-02-15 1984-08-25 松下電工株式会社 Method of producing silicon steel plate base copper-lined laminated board
JPS60127783A (en) * 1983-12-14 1985-07-08 松下電工株式会社 Metal base laminated board
JPS6135227A (en) * 1984-07-27 1986-02-19 Showa Denko Kk Folding guide of inflation film
WO2009000510A2 (en) * 2007-06-28 2008-12-31 Reifenhäuser GmbH & Co. KG Maschinenfabrik Device for producing blown films

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129914U (en) * 1974-08-21 1976-03-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129914U (en) * 1974-08-21 1976-03-04

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59148390A (en) * 1983-02-15 1984-08-25 松下電工株式会社 Method of producing silicon steel plate base copper-lined laminated board
JPS60127783A (en) * 1983-12-14 1985-07-08 松下電工株式会社 Metal base laminated board
JPH0136993B2 (en) * 1983-12-14 1989-08-03 Matsushita Electric Works Ltd
JPS6135227A (en) * 1984-07-27 1986-02-19 Showa Denko Kk Folding guide of inflation film
JPH0548170B2 (en) * 1984-07-27 1993-07-20 Showa Denko Kk
WO2009000510A2 (en) * 2007-06-28 2008-12-31 Reifenhäuser GmbH & Co. KG Maschinenfabrik Device for producing blown films
WO2009000509A2 (en) * 2007-06-28 2008-12-31 Reifenhäuser GmbH & Co. KG Maschinenfabrik Device for producing blown films
WO2009000509A3 (en) * 2007-06-28 2009-03-19 Reifenhaeuser Gmbh & Co Kg Device for producing blown films
WO2009000510A3 (en) * 2007-06-28 2009-03-26 Reifenhaeuser Gmbh & Co Kg Device for producing blown films
US8430727B2 (en) 2007-06-28 2013-04-30 Reifenhäuser GmbH & Co. KG Maschinenfabrik Device for producing blown films

Similar Documents

Publication Publication Date Title
JPS52121666A (en) Method and device for forming folding line of thermoplastic resin sheet
SE426331B (en) SIZE MIXTURE, PROCEDURE FOR GLASSING PAPER WITH THE MIXTURE AND PRODUCTS THEREOF
JPS54163971A (en) Apparatus for applying plastics stretch film
JPS5331765A (en) Cooling* transverse dimensionn determining* and warppreforming apparatus for belt of synthtic resin sheet
JPS5617227A (en) Method and apparatus for folding inflated film
BE883585A (en) PROCESS AND DEVICE FOR THE MANUFACTURE OF MOLDED MOLDED PARTS IN THERMOPLASTIC FOAMING MATERIAL
BE858480A (en) PROCESS AND APPARATUS FOR ADHESTING ENVELOPES OF SHEET MATERIAL AND THE LIKE
GB1546764A (en) Method and apparatus for the manufacture of reinforced plastic materials
BE857686A (en) PROCESS AND APPARATUS FOR MANUFACTURING MOLDED ARTICLES
DK191174A (en) PROCEDURE FOR PAINTING THE RELATIVE AIR CONTENT IN AN AIRBAG BAG OR CREAM AND APPARATUS FOR PERFORMING THE PROCEDURE
PT71274A (en) Process and device for the manufacture of plastic articlesfrom thermoplastic sheets
BE840733A (en) METHOD AND INSTALLATION FOR THE SEPARATION OF PLASTIC MATERIAL IN THE STATE OF FILM WITH PAPER
JPS5216564A (en) Foaming silicone rubber composition
ZA77326B (en) Process and apparatus for the thermoplastic material
FR2458202B1 (en) METHOD, MATERIAL AND APPARATUS FOR MANUFACTURING PRINTED CIRCUITS
JPS5617228A (en) Folding method for inflated film
JPS5382420A (en) Heating device
JPS5315887A (en) Apparatus for measurement of deterioration of plastics
JPS5316080A (en) Process and device for manufacture of molded polymer foam
BE877719A (en) APPARATUS FOR THE MANUFACTURE OF BAGS OR SACHETS OF PLASTIC MATERIAL
JPS5379955A (en) Method and apparatus for molding biaxially stretched bottle
JPS52101240A (en) Adhesive for vulcanized rubber
JPS52125581A (en) Process and apparatus for processing disposed plastics
BE787127R (en) PROCESS FOR THE MANUFACTURE OF OPEN OR CLOSED PACKAGING IN SPONGIOUS MATERIALS, PREFERRED IN FOAM OF
JPS538675A (en) Method for elongation of thermo plastic resin sheet or film