GB1484081A - Process for embossing a web of film - Google Patents

Process for embossing a web of film

Info

Publication number
GB1484081A
GB1484081A GB38448/74A GB3844874A GB1484081A GB 1484081 A GB1484081 A GB 1484081A GB 38448/74 A GB38448/74 A GB 38448/74A GB 3844874 A GB3844874 A GB 3844874A GB 1484081 A GB1484081 A GB 1484081A
Authority
GB
United Kingdom
Prior art keywords
web
embossing
longitudinal
tension
transverse
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
GB38448/74A
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.)
Hoechst AG
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 GB1484081A publication Critical patent/GB1484081A/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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0044—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping edges or extremities
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/32—Coiling
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Winding Of Webs (AREA)

Abstract

1484081 Embossing HOECHST AG 3 Sept 1974 [5 Sept 1973] 38448/74 Heading B6J A web of thermoplastic film is embossed while being tensioned in the longitudinal and transverse directions. Longitudinal tension is produced due to the web transport and the transverse tension may be produced by revolving clip chains holding the edges of the web. The transverse tension may be increased by using a diverging tenter. The web may be heated or cooled whilst still subject to tension. The embossing may be applied as a line or lines parallel to the longitudinal edges of the web and may be applied while the web is ductile. The lines may be closely spaced to permit slitting of the web therebetween. The embossing may be applied before, during or after a longitudinal or transverse stretching of the web.
GB38448/74A 1973-09-05 1974-09-03 Process for embossing a web of film Expired GB1484081A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2344679A DE2344679C3 (en) 1973-09-05 1973-09-05 Process for the continuous preparation of a plastic film web intended for subsequent winding

Publications (1)

Publication Number Publication Date
GB1484081A true GB1484081A (en) 1977-08-24

Family

ID=5891651

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38448/74A Expired GB1484081A (en) 1973-09-05 1974-09-03 Process for embossing a web of film

Country Status (12)

Country Link
JP (1) JPS5857297B2 (en)
AT (1) AT341765B (en)
BE (1) BE819460A (en)
CA (1) CA1052066A (en)
DE (1) DE2344679C3 (en)
DK (1) DK140795B (en)
FR (1) FR2242215B1 (en)
GB (1) GB1484081A (en)
IE (1) IE40010B1 (en)
IT (1) IT1019184B (en)
LU (1) LU70839A1 (en)
NL (1) NL182868C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2832891C2 (en) * 1978-07-27 1982-07-01 Agfa-Gevaert Ag, 5090 Leverkusen Device for one and / or two-sided distortion-free, continuous thickening and roughening of the edges of a web

Also Published As

Publication number Publication date
DE2344679C3 (en) 1978-04-27
DE2344679A1 (en) 1975-03-27
DK140795B (en) 1979-11-19
LU70839A1 (en) 1976-08-19
FR2242215B1 (en) 1978-02-17
IT1019184B (en) 1977-11-10
DK140795C (en) 1980-04-21
AT341765B (en) 1978-02-27
IE40010L (en) 1975-03-05
JPS5857297B2 (en) 1983-12-19
JPS5051560A (en) 1975-05-08
NL182868B (en) 1988-01-04
DK467674A (en) 1975-05-05
FR2242215A1 (en) 1975-03-28
IE40010B1 (en) 1979-02-14
DE2344679B2 (en) 1977-09-01
ATA706374A (en) 1977-06-15
BE819460A (en) 1975-03-03
CA1052066A (en) 1979-04-10
NL182868C (en) 1988-06-01
NL7411337A (en) 1975-03-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee