BE806210A - METHOD AND DEVICE FOR PREVENTING THE WIDTH CONTRACTION OF A STRIP OF SHEET OF SYNTHETIC MATERIAL - Google Patents

METHOD AND DEVICE FOR PREVENTING THE WIDTH CONTRACTION OF A STRIP OF SHEET OF SYNTHETIC MATERIAL

Info

Publication number
BE806210A
BE806210A BE136805A BE136805A BE806210A BE 806210 A BE806210 A BE 806210A BE 136805 A BE136805 A BE 136805A BE 136805 A BE136805 A BE 136805A BE 806210 A BE806210 A BE 806210A
Authority
BE
Belgium
Prior art keywords
strip
preventing
sheet
synthetic material
width contraction
Prior art date
Application number
BE136805A
Other languages
French (fr)
Original Assignee
Berstorff Gmbh Masch Hermann
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 Berstorff Gmbh Masch Hermann filed Critical Berstorff Gmbh Masch Hermann
Publication of BE806210A publication Critical patent/BE806210A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or 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
    • B29C48/001—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
    • B29C48/03—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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
BE136805A 1972-12-14 1973-10-17 METHOD AND DEVICE FOR PREVENTING THE WIDTH CONTRACTION OF A STRIP OF SHEET OF SYNTHETIC MATERIAL BE806210A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2261117 1972-12-14

Publications (1)

Publication Number Publication Date
BE806210A true BE806210A (en) 1974-02-15

Family

ID=5864367

Family Applications (1)

Application Number Title Priority Date Filing Date
BE136805A BE806210A (en) 1972-12-14 1973-10-17 METHOD AND DEVICE FOR PREVENTING THE WIDTH CONTRACTION OF A STRIP OF SHEET OF SYNTHETIC MATERIAL

Country Status (4)

Country Link
BE (1) BE806210A (en)
FR (1) FR2327059A1 (en)
GB (1) GB1394805A (en)
IT (1) IT1000300B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3414676C2 (en) * 1984-04-18 1986-08-21 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Use of a device for blowing compressed air onto a thermoplastic plastic film
DE4304374C1 (en) * 1993-02-13 1994-01-27 Kleinewefers Gmbh Calender assembly for paper and other web materials - applies electrostatic charge to side of web against the temp. controlled roller for close contact without intermediate air layer

Also Published As

Publication number Publication date
FR2327059A1 (en) 1977-05-06
IT1000300B (en) 1976-03-30
FR2327059B1 (en) 1978-03-24
GB1394805A (en) 1975-05-21

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