JPS57156219A - Preparation of thermoplastic resin film - Google Patents

Preparation of thermoplastic resin film

Info

Publication number
JPS57156219A
JPS57156219A JP56042198A JP4219881A JPS57156219A JP S57156219 A JPS57156219 A JP S57156219A JP 56042198 A JP56042198 A JP 56042198A JP 4219881 A JP4219881 A JP 4219881A JP S57156219 A JPS57156219 A JP S57156219A
Authority
JP
Japan
Prior art keywords
film
edges
contact
grooves
thermoplastic resin
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
JP56042198A
Other languages
Japanese (ja)
Inventor
Junkichi Watanabe
Isao Tanano
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.)
Unitika Ltd
Original Assignee
Unitika Ltd
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 Unitika Ltd filed Critical Unitika Ltd
Priority to JP56042198A priority Critical patent/JPS57156219A/en
Publication of JPS57156219A publication Critical patent/JPS57156219A/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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Moulding By Coating Moulds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To prepare precise film poor in variation of width and thickness of the film in high yields of edges by providing grooves with a specific width at positions wherewith both ends of the film come first in contact on a cooling roll and catching these edges with these grooves. CONSTITUTION:Thermoplastic resin having molten poly-epsilon-capramide as a main component is extruded by an external 1 as the film 4 from the slit of a T-die 2. The resin is supplied on a cooling roll 3 provided with one or two or more grooves 3' larger in depth than the average thickness of the film at the positions wherewith both edges 4' of the film first come in contact, the edge 4' of the film is fixed at the groove 3', one side of the film is brought into contact with the metallic surface, the other side is with the air, the film is cooled, cured and then released by a release roll 5.
JP56042198A 1981-03-19 1981-03-19 Preparation of thermoplastic resin film Pending JPS57156219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56042198A JPS57156219A (en) 1981-03-19 1981-03-19 Preparation of thermoplastic resin film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56042198A JPS57156219A (en) 1981-03-19 1981-03-19 Preparation of thermoplastic resin film

Publications (1)

Publication Number Publication Date
JPS57156219A true JPS57156219A (en) 1982-09-27

Family

ID=12629305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56042198A Pending JPS57156219A (en) 1981-03-19 1981-03-19 Preparation of thermoplastic resin film

Country Status (1)

Country Link
JP (1) JPS57156219A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007125729A1 (en) * 2006-04-28 2007-11-08 Konica Minolta Opto, Inc. Method for manufacturing optical film
TWI426994B (en) * 2010-07-30 2014-02-21 Fujifilm Corp Drying apparatus and solution casting method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007125729A1 (en) * 2006-04-28 2007-11-08 Konica Minolta Opto, Inc. Method for manufacturing optical film
US7727445B2 (en) 2006-04-28 2010-06-01 Konica Minolta Opto, Inc. Method for manufacturing optical film
KR101285476B1 (en) * 2006-04-28 2013-07-12 코니카 미놀타 어드밴스드 레이어즈 인코포레이티드 Method for manufacturing optical film
TWI426994B (en) * 2010-07-30 2014-02-21 Fujifilm Corp Drying apparatus and solution casting method

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