FR2391835A1 - Chill roll quenching of twin extruded polyolefin printing tapes - using interfacial vacuum to minimise the quenching cycle - Google Patents

Chill roll quenching of twin extruded polyolefin printing tapes - using interfacial vacuum to minimise the quenching cycle

Info

Publication number
FR2391835A1
FR2391835A1 FR7626721A FR7626721A FR2391835A1 FR 2391835 A1 FR2391835 A1 FR 2391835A1 FR 7626721 A FR7626721 A FR 7626721A FR 7626721 A FR7626721 A FR 7626721A FR 2391835 A1 FR2391835 A1 FR 2391835A1
Authority
FR
France
Prior art keywords
film
quenching
chill roll
vacuum
minimise
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.)
Granted
Application number
FR7626721A
Other languages
French (fr)
Other versions
FR2391835B1 (en
Inventor
Jean-Marc Goudeau
Michel Moinet
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.)
Compagnie IBM France SAS
Original Assignee
Compagnie IBM France SAS
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 Compagnie IBM France SAS filed Critical Compagnie IBM France SAS
Priority to FR7626721A priority Critical patent/FR2391835A1/en
Publication of FR2391835A1 publication Critical patent/FR2391835A1/en
Application granted granted Critical
Publication of FR2391835B1 publication Critical patent/FR2391835B1/fr
Granted 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
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • 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
    • 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
    • B29C48/916—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means using vacuum
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Extrusion oriented thermoplastic film is produced from a die having a choker bar set to give a very narrow clearance and the film is then rapidly applied to the surface of a chill roll, using a combination of an external pressure jet and a suction manifold for creating a vacuum at the film/roll interface. Used for mfr. of film about 10 mum thick with a tolerance of =plus-or-minus 3% in widths up to 3m. and outputs up to 150 m/mm. from polyethylene, polypropylene or polyamide resins for use as ink coated printing ribbons. Minimum delay in quenching the extrudate against the chill roll allows prodn. of thinner film than blown or wet-quenched film extrusion processes to enhance spool capacity, and to closer tolerances, for high uniformity of ink coating depth and print transfer. Also provides a high degree of longitudinal orientation for the assymetric tear strengths required for fabricating and using printing ink tapes.
FR7626721A 1976-08-27 1976-08-27 Chill roll quenching of twin extruded polyolefin printing tapes - using interfacial vacuum to minimise the quenching cycle Granted FR2391835A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7626721A FR2391835A1 (en) 1976-08-27 1976-08-27 Chill roll quenching of twin extruded polyolefin printing tapes - using interfacial vacuum to minimise the quenching cycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7626721A FR2391835A1 (en) 1976-08-27 1976-08-27 Chill roll quenching of twin extruded polyolefin printing tapes - using interfacial vacuum to minimise the quenching cycle

Publications (2)

Publication Number Publication Date
FR2391835A1 true FR2391835A1 (en) 1978-12-22
FR2391835B1 FR2391835B1 (en) 1979-08-17

Family

ID=9177381

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7626721A Granted FR2391835A1 (en) 1976-08-27 1976-08-27 Chill roll quenching of twin extruded polyolefin printing tapes - using interfacial vacuum to minimise the quenching cycle

Country Status (1)

Country Link
FR (1) FR2391835A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196727A1 (en) * 1985-04-03 1986-10-08 Stamicarbon B.V. Multilayer bag provided with a peelable seal

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2364552A (en) * 1942-11-14 1944-12-05 Sylvania Ind Corp Process and apparatus for producing pellicles
FR966508A (en) * 1947-05-17 1950-10-12 Cellulose Sidac S A Soc Ind De Plastic extrusion method and apparatus
FR1274277A (en) * 1960-11-28 1961-10-20 Monsanto Chemicals Improvements in thermoplastic resins
US3347962A (en) * 1965-08-02 1967-10-17 Eastman Kodak Co Method and apparatus for casting a liquid composition
US3456293A (en) * 1966-03-17 1969-07-22 Agfa Gevaert Nv Extrusion apparatus
FR1594044A (en) * 1968-02-27 1970-06-01

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2364552A (en) * 1942-11-14 1944-12-05 Sylvania Ind Corp Process and apparatus for producing pellicles
FR966508A (en) * 1947-05-17 1950-10-12 Cellulose Sidac S A Soc Ind De Plastic extrusion method and apparatus
FR1274277A (en) * 1960-11-28 1961-10-20 Monsanto Chemicals Improvements in thermoplastic resins
US3347962A (en) * 1965-08-02 1967-10-17 Eastman Kodak Co Method and apparatus for casting a liquid composition
US3456293A (en) * 1966-03-17 1969-07-22 Agfa Gevaert Nv Extrusion apparatus
FR1594044A (en) * 1968-02-27 1970-06-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196727A1 (en) * 1985-04-03 1986-10-08 Stamicarbon B.V. Multilayer bag provided with a peelable seal

Also Published As

Publication number Publication date
FR2391835B1 (en) 1979-08-17

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Legal Events

Date Code Title Description
ST Notification of lapse