FR2113892A1 - Biaxial film stretching - with loosely turning pressure rollers in direction of guideways - Google Patents

Biaxial film stretching - with loosely turning pressure rollers in direction of guideways

Info

Publication number
FR2113892A1
FR2113892A1 FR7140251A FR7140251A FR2113892A1 FR 2113892 A1 FR2113892 A1 FR 2113892A1 FR 7140251 A FR7140251 A FR 7140251A FR 7140251 A FR7140251 A FR 7140251A FR 2113892 A1 FR2113892 A1 FR 2113892A1
Authority
FR
France
Prior art keywords
guideways
pressure rollers
film stretching
biaxial film
turning pressure
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.)
Withdrawn
Application number
FR7140251A
Other languages
French (fr)
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.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier GmbH
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 Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of FR2113892A1 publication Critical patent/FR2113892A1/en
Withdrawn legal-status Critical Current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
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/16—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
    • B29C55/165—Apparatus therefor
    • 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
    • B29C55/20—Edge clamps

Abstract

To grip the beaded edge of the thermoplastic film sheeting, the rollers are mounted in sequence in the direction of flow, the bevelled edges of the rollers exerting a constant pull on the material to give a biaxial stretching without edge damage or imposing a ripple effect by the stretching process.
FR7140251A 1970-11-12 1971-11-10 Biaxial film stretching - with loosely turning pressure rollers in direction of guideways Withdrawn FR2113892A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702055615 DE2055615C3 (en) 1970-11-12 1970-11-12 Device for continuous simultaneous biaxial stretching of an edge-reinforced thermoplastic film web

Publications (1)

Publication Number Publication Date
FR2113892A1 true FR2113892A1 (en) 1972-06-30

Family

ID=5787871

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7140251A Withdrawn FR2113892A1 (en) 1970-11-12 1971-11-10 Biaxial film stretching - with loosely turning pressure rollers in direction of guideways

Country Status (3)

Country Link
DE (1) DE2055615C3 (en)
FR (1) FR2113892A1 (en)
IT (1) IT944902B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2317076A2 (en) * 1975-07-07 1977-02-04 Cellophane Sa Flat drawing plastic films with self-propelling grippers - preventing wastage of film edges due to arching
WO2016106046A1 (en) * 2014-12-22 2016-06-30 3M Innovative Properties Company Apparatus and method for stretching and taking-away polymer films

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004004084A1 (en) * 2004-01-27 2005-08-18 Treofan Germany Gmbh & Co.Kg Method and device for longitudinal stretching of a film web

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2317076A2 (en) * 1975-07-07 1977-02-04 Cellophane Sa Flat drawing plastic films with self-propelling grippers - preventing wastage of film edges due to arching
WO2016106046A1 (en) * 2014-12-22 2016-06-30 3M Innovative Properties Company Apparatus and method for stretching and taking-away polymer films
CN107107457A (en) * 2014-12-22 2017-08-29 3M创新有限公司 Apparatus and method for stretching and taking away polymer film
CN107107457B (en) * 2014-12-22 2019-08-13 3M创新有限公司 For stretching and taking away the device and method of polymer film
US10583603B2 (en) 2014-12-22 2020-03-10 3M Innovative Properties Company Apparatus and method for stretching and taking-away polymer films

Also Published As

Publication number Publication date
DE2055615B2 (en) 1974-04-04
DE2055615A1 (en) 1972-05-18
DE2055615C3 (en) 1974-11-14
IT944902B (en) 1973-04-20

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Legal Events

Date Code Title Description
ST Notification of lapse