IE45025L - Thermoplastic film - Google Patents

Thermoplastic film

Info

Publication number
IE45025L
IE45025L IE770575A IE57577A IE45025L IE 45025 L IE45025 L IE 45025L IE 770575 A IE770575 A IE 770575A IE 57577 A IE57577 A IE 57577A IE 45025 L IE45025 L IE 45025L
Authority
IE
Ireland
Prior art keywords
film
thermoplastic
melt cylinder
calender
heat treatment
Prior art date
Application number
IE770575A
Other versions
IE45025B1 (en
Original Assignee
Unilever 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 Unilever Ltd filed Critical Unilever Ltd
Publication of IE45025L publication Critical patent/IE45025L/en
Publication of IE45025B1 publication Critical patent/IE45025B1/en

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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • B29C55/065—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed in several stretching steps
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/24—Calendering
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/26—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length in several steps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

A film based on thermally unstable, thermoplastic materials, the film being formed on a calender at a temperature below the thermoplastic range and subsequently subjected to a heat treatment involving heating the film up to the thermoplastic range of the plastic used, is obtained by the film being oriented under tensile stress during the heat treatment, the tensile stress being set such that an elongation of the film of at least 25 per cent to 50 per cent is achieved. An apparatus for producing an oriented film based on thermally unstable, thermoplastic materials is also described. This apparatus is characterised in that a calender (k) for producing the film (K) is provided and is followed directly downstream by at least one melt cylinder (17 to 112), in that furthermore take-off rolls (113 to 115) are provided, which draw the film off the melt cylinder or cylinders at an increased rate, it being possible in each case for a further downstream melt cylinder to serve as the take-off roll. <IMAGE> [GB1579234A]
IE575/77A 1976-03-17 1977-03-16 Process and apparatus for producing a thermoplastic film IE45025B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2611134A DE2611134B2 (en) 1976-03-17 1976-03-17 Method and device for producing a film from thermally unstable thermoplastics and the use of this film

Publications (2)

Publication Number Publication Date
IE45025L true IE45025L (en) 1977-09-17
IE45025B1 IE45025B1 (en) 1982-06-02

Family

ID=5972648

Family Applications (1)

Application Number Title Priority Date Filing Date
IE575/77A IE45025B1 (en) 1976-03-17 1977-03-16 Process and apparatus for producing a thermoplastic film

Country Status (23)

Country Link
JP (1) JPS52111970A (en)
AT (1) AT364525B (en)
BE (1) BE852561A (en)
BR (1) BR7701612A (en)
CA (1) CA1086917A (en)
CH (1) CH630557A5 (en)
CS (1) CS207386B2 (en)
DD (1) DD129416A5 (en)
DE (1) DE2611134B2 (en)
DK (1) DK113877A (en)
ES (2) ES456967A1 (en)
FI (1) FI770839A (en)
FR (1) FR2344395A1 (en)
GB (1) GB1579234A (en)
IE (1) IE45025B1 (en)
IT (1) IT1082534B (en)
LU (1) LU76965A1 (en)
MX (1) MX146452A (en)
NL (1) NL7702813A (en)
NO (1) NO149379C (en)
PL (1) PL105964B1 (en)
SE (1) SE423608B (en)
SU (1) SU913926A3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT393648B (en) * 1990-02-15 1991-11-25 Chemiefaser Lenzing Ag FILM STRETCHER
DE202005006412U1 (en) * 2004-05-27 2005-06-30 Battenfeld Extrusionstechnik Gmbh cooler
WO2017116851A1 (en) * 2015-12-28 2017-07-06 Graham Engineering Corporation Multi-nip takeoff

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1153890A (en) * 1955-05-03 1958-03-28 Hoechst Ag Thin and very thin sheets of thermoplastic material and their manufacture
FR1159226A (en) * 1955-08-27 1958-06-25 Hoechst Ag Process for treating sheets of thermoplastic materials
DE1629255A1 (en) * 1966-03-25 1971-01-28 Anger Plastic Maschinen Gmbh & Method and device for producing plastic films on the extruder, in particular rigid PVC, with certain technical properties
DE2250560A1 (en) * 1972-10-14 1974-05-02 Kleinewefers Ind Co Gmbh METHOD AND DEVICE FOR PRODUCING HOMOGENOUS RECKABLE FILM WEBS

Also Published As

Publication number Publication date
IE45025B1 (en) 1982-06-02
ES456967A1 (en) 1978-07-01
FR2344395A1 (en) 1977-10-14
NO149379C (en) 1984-04-11
LU76965A1 (en) 1977-10-03
GB1579234A (en) 1980-11-19
CS207386B2 (en) 1981-07-31
SE423608B (en) 1982-05-17
BR7701612A (en) 1977-11-08
DD129416A5 (en) 1978-01-18
MX146452A (en) 1982-06-29
JPS52111970A (en) 1977-09-20
NO770865L (en) 1977-09-20
SE7703006L (en) 1977-09-18
CH630557A5 (en) 1982-06-30
PL105964B1 (en) 1979-11-30
DE2611134B2 (en) 1979-01-11
ES467233A1 (en) 1978-12-01
NO149379B (en) 1984-01-02
DK113877A (en) 1977-09-18
FR2344395B1 (en) 1982-03-12
DE2611134A1 (en) 1977-09-29
ATA178777A (en) 1981-03-15
BE852561A (en) 1977-09-19
CA1086917A (en) 1980-10-07
IT1082534B (en) 1985-05-21
SU913926A3 (en) 1982-03-15
NL7702813A (en) 1977-09-20
FI770839A (en) 1977-09-18
AT364525B (en) 1981-10-27

Similar Documents

Publication Publication Date Title
US4042569A (en) Heat-setting process for polyester film
GB2040801B (en) Process for laminating thermoplastic resin reinforced with fibre glass
ES2055608T3 (en) PROCESS AND PLANT TO OBTAIN STEEL STRIP ROLLS WITH COLD ROLLING CHARACTERISTICS AND DIRECTLY OBTAINED FROM A HOT ROLLING LINE.
DE7013492U (en) DEVICE FOR THE PRODUCTION OF DIMENSIONAL PLASTIC FLAT FILMS
ATE148653T1 (en) METHOD FOR PRODUCING POLYPROPYLENE SHEET OR FILM
US4310485A (en) Method of improving the flatness of compression-rolled plastic film
IE822727L (en) Extrusion of vinylidene fluoride polymer films
US2812550A (en) Method for making stretched thermoplastic film
IE45025L (en) Thermoplastic film
DE2119111A1 (en) Process for making films or tapes from high density polyethylene
IT1177047B (en) PROCEDURE AND EQUIPMENT FOR THE COUPLING, PROTECTED BY AN AUXILIARY FILM, OF PROTECTIVE FILMS TO AN EXTRUDED SHEET, ALL MADE OF PLASTIC MATERIALS AND PRODUCT SO OBTAINED
JPS55103931A (en) Production of thermally contractible film
JPS6470748A (en) Manufacture of curled photographic film
JPS57103819A (en) Manufacture of biaxially stretched polypropylene film of excellent rigidity and heat-shrinking resistance
JPS5651329A (en) Manufacture of tempered polypropylene film
JPS5587533A (en) Production of band for heavy package
JPS54100468A (en) Production of monoaxially stretched product of polyolefin resin
ES2050731T3 (en) PROCEDURE FOR THE PRODUCTION OF LINEAR POLYETHYLENE SHEETS OF VERY LOW DENSITY.
JPS56111627A (en) Production of thermo-shrinkable matt film
SU937195A1 (en) Method of producing uniaxially oriented polyolefine film
JPS557451A (en) Production of polypropylene sheet
JPS6449620A (en) Manufacture of holey film
JPS5537370A (en) Production of thermoplastic resin drawing film
JPS5684918A (en) Preparation of film
GB1034032A (en) Method of making a heat-set stretched polyvinyl chloride film