CH487725A - Method and device for longitudinal stretching of a plastic film - Google Patents

Method and device for longitudinal stretching of a plastic film

Info

Publication number
CH487725A
CH487725A CH645069A CH645069A CH487725A CH 487725 A CH487725 A CH 487725A CH 645069 A CH645069 A CH 645069A CH 645069 A CH645069 A CH 645069A CH 487725 A CH487725 A CH 487725A
Authority
CH
Switzerland
Prior art keywords
plastic film
longitudinal stretching
stretching
longitudinal
plastic
Prior art date
Application number
CH645069A
Other languages
German (de)
Inventor
Heinz-Ehrhardt Dr Andersen
Original Assignee
Hoechst 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 Hoechst Ag filed Critical Hoechst Ag
Publication of CH487725A publication Critical patent/CH487725A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
CH645069A 1968-04-30 1969-04-28 Method and device for longitudinal stretching of a plastic film CH487725A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1778446 1968-04-30

Publications (1)

Publication Number Publication Date
CH487725A true CH487725A (en) 1970-03-31

Family

ID=5703443

Family Applications (1)

Application Number Title Priority Date Filing Date
CH645069A CH487725A (en) 1968-04-30 1969-04-28 Method and device for longitudinal stretching of a plastic film

Country Status (5)

Country Link
BE (1) BE732358A (en)
CH (1) CH487725A (en)
ES (1) ES366562A1 (en)
FR (1) FR2007313A1 (en)
NL (1) NL6905703A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2044865A1 (en) * 1970-06-20 1971-12-30 Toyo Boseki Drawn plastic film prodn - by passing film a long a loop diverging from the surface of adjacent drawing rollers
EP0181755A2 (en) * 1984-11-06 1986-05-21 Toray Industries, Inc. Method for holding a moving film
EP0184932A2 (en) * 1984-12-10 1986-06-18 E.I. Du Pont De Nemours And Company Stretched-and-bonded plexifilamentary sheet

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1371334A (en) * 1970-10-30 1974-10-23 Agfa Gevaert Film stretching method and apparatus
AT393648B (en) * 1990-02-15 1991-11-25 Chemiefaser Lenzing Ag FILM STRETCHER

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2044865A1 (en) * 1970-06-20 1971-12-30 Toyo Boseki Drawn plastic film prodn - by passing film a long a loop diverging from the surface of adjacent drawing rollers
EP0181755A2 (en) * 1984-11-06 1986-05-21 Toray Industries, Inc. Method for holding a moving film
EP0181755A3 (en) * 1984-11-06 1986-09-10 Toray Industries, Inc. Method for holding a moving film
EP0184932A2 (en) * 1984-12-10 1986-06-18 E.I. Du Pont De Nemours And Company Stretched-and-bonded plexifilamentary sheet
EP0184932A3 (en) * 1984-12-10 1988-04-27 E.I. Du Pont De Nemours And Company Stretched-and-bonded plexifilamentary sheet

Also Published As

Publication number Publication date
NL6905703A (en) 1969-11-03
BE732358A (en) 1969-10-30
ES366562A1 (en) 1971-03-16
FR2007313A1 (en) 1970-01-02

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Legal Events

Date Code Title Description
PL Patent ceased