ES426983A1 - Method of and a machine for producing low-shrinkage ribbons of film - Google Patents

Method of and a machine for producing low-shrinkage ribbons of film

Info

Publication number
ES426983A1
ES426983A1 ES426983A ES426983A ES426983A1 ES 426983 A1 ES426983 A1 ES 426983A1 ES 426983 A ES426983 A ES 426983A ES 426983 A ES426983 A ES 426983A ES 426983 A1 ES426983 A1 ES 426983A1
Authority
ES
Spain
Prior art keywords
temperature
elongation
sheet
stretching
stage
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.)
Expired
Application number
ES426983A
Other languages
Spanish (es)
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.)
Oerlikon Barmag AG
Original Assignee
Barmag Barmer Maschinenfabrik AG
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 Barmag Barmer Maschinenfabrik AG filed Critical Barmag Barmer Maschinenfabrik AG
Publication of ES426983A1 publication Critical patent/ES426983A1/en
Expired 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
    • 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
    • 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
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0063—Cutting longitudinally
    • 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
    • B29C48/03—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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154—Coating solid articles, i.e. non-hollow articles
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces

Landscapes

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

Abstract

Process for the manufacture of monoaxially stretched sheet tapes from thermoplastic synthetic materials, in particular polypropylene, in which a sheet of synthetic material produced by the extrusion process is divided into sheet tapes that, in at least two stages of stretching at at a temperature above ambient temperature and below the melting temperature of crystallites, they are monoaxially oriented, thermally stabilized and, if necessary, wound on winding bodies, characterized in that in the successive stretching steps the temperature is increased of elongation from one stretching stage to another, the elongation temperature acting in the first stage of stretching on the sheet tape which is sufficient to carry out an elongation of a single stage, with the chosen ratio of total elongation, and being adapted in the subsequent stretching steps the elongation temperature to each case to the superior temperature resistance of the sheet tape corresponding to the highest degree of orientation, and because the thermal stabilization of the sheet tape elongated is carried out after elongation at a temperature between approximately 20ºC and 30ºC below the crystallite melting point of the synthetic material, while allowing a certain degree of shrinkage. (Machine-translation by Google Translate, not legally binding)
ES426983A 1973-06-06 1974-06-05 Method of and a machine for producing low-shrinkage ribbons of film Expired ES426983A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2328639A DE2328639C3 (en) 1973-06-06 1973-06-06 Process for the production of monoaxially stretched film strips from polypropylene

Publications (1)

Publication Number Publication Date
ES426983A1 true ES426983A1 (en) 1976-08-01

Family

ID=5883107

Family Applications (1)

Application Number Title Priority Date Filing Date
ES426983A Expired ES426983A1 (en) 1973-06-06 1974-06-05 Method of and a machine for producing low-shrinkage ribbons of film

Country Status (10)

Country Link
JP (1) JPS5048077A (en)
AT (1) AT359621B (en)
BR (1) BR7404512D0 (en)
DD (1) DD111656A5 (en)
DE (1) DE2328639C3 (en)
ES (1) ES426983A1 (en)
FR (1) FR2232427B3 (en)
GB (1) GB1475571A (en)
IT (1) IT1013170B (en)
ZA (1) ZA743617B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2405990C3 (en) * 1974-02-08 1981-05-14 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Device for applying running threads to rotating rollers
JPS578118A (en) * 1980-06-20 1982-01-16 Mitsubishi Petrochem Co Ltd Biaxially oriented polypropylene film and manufacture thereof
DE3220587C2 (en) * 1982-06-01 1984-09-13 Stahlkontor Weser Lenze GmbH & Co KG, 3251 Aerzen Method and device for cutting and winding up small tapes, in particular made of adhesive-coated foils
DE3604703A1 (en) * 1986-02-14 1987-09-10 Windmoeller & Hoelscher OVEN FOR HEATING THERMOPLASTIC TAPES TO BE STRETCHED
DE3866834D1 (en) * 1987-09-14 1992-01-23 Windmoeller & Hoelscher METHOD AND DEVICE FOR PRODUCING DOUBLE-LAYER STRETCHED TAPES.
DE4318689C2 (en) * 1993-06-04 1995-09-07 Windmoeller & Hoelscher Process for producing low-shrink tapes and device for carrying out this process
DE19756257A1 (en) * 1997-12-17 1999-07-01 Sahm Georg Fa Multi-layer small plastic band manufacture for use in high strength woven fabrics and process equipment
DE102013019304A1 (en) 2013-11-16 2015-05-21 Oerlikon Textile Gmbh & Co. Kg Process for the production of synthetic film tapes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089965B (en) * 1955-03-28 1960-09-29 Du Pont Process for the molecular orientation of polyethylene films
FR1450585A (en) * 1965-06-14 1966-06-24 Saint Freres Method and apparatus for drawing synthetic polymer tapes and products obtained
GB1171219A (en) * 1967-11-09 1969-11-19 Ici Ltd Process for the production of preferentially oriented Polyolefin Tapes
DE1779150C2 (en) * 1968-07-12 1973-01-04 Kalle Ag, 6202 Wiesbaden-Biebrich Process for the production of monoaxially stretched film strips

Also Published As

Publication number Publication date
DE2328639B2 (en) 1979-07-26
JPS5048077A (en) 1975-04-28
DD111656A5 (en) 1975-03-05
FR2232427A1 (en) 1975-01-03
FR2232427B3 (en) 1977-04-08
AT359621B (en) 1980-11-25
GB1475571A (en) 1977-06-01
DE2328639A1 (en) 1975-01-02
DE2328639C3 (en) 1985-04-18
IT1013170B (en) 1977-03-30
BR7404512D0 (en) 1975-01-21
ZA743617B (en) 1975-05-28
ATA407374A (en) 1978-09-15

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