ES466802A1 - Procedimiento para estirar longitudinalmente una lamina for-mada tubularmente y aparato correspondiente - Google Patents

Procedimiento para estirar longitudinalmente una lamina for-mada tubularmente y aparato correspondiente

Info

Publication number
ES466802A1
ES466802A1 ES466802A ES466802A ES466802A1 ES 466802 A1 ES466802 A1 ES 466802A1 ES 466802 A ES466802 A ES 466802A ES 466802 A ES466802 A ES 466802A ES 466802 A1 ES466802 A1 ES 466802A1
Authority
ES
Spain
Prior art keywords
sheet
speed
tubularly
rollers
stretching
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
ES466802A
Other languages
English (en)
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.)
Biax Fiberfilm Corp
Original Assignee
Biax Fiberfilm Corp
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
Priority claimed from US05/766,926 external-priority patent/US4144008A/en
Application filed by Biax Fiberfilm Corp filed Critical Biax Fiberfilm Corp
Publication of ES466802A1 publication Critical patent/ES466802A1/es
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
    • B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/001—Tubular films, sleeves

Abstract

Procedimiento para estirar longitudinalmente una lámina formada tubularmente, de material polimérico orientable, caracterizado porque se termosuelda dicha lámina formada tubularmente a intervalos preseleccionados perpendiculares al movimiento de dicha lámina con anterioridad a su estiraje, se introduce dicha lámina en la pasada entre rodillos entrelazados dotados de ranuras paralelas al eje de dichos rodillos; se controla la velocidad de introducción de dicha lámina en dicha pasada substancialmente a la velocidad de rotación de dichos rodillos a fin de estirar longitudinalmente partes incrementales de dicha lámina; se retira dicha lámina de dichos rodillos a una velocidad mayor que la velocidad de rotación de dichos rodillos; y se recoge la lámina así estirada.
ES466802A 1977-02-09 1978-02-08 Procedimiento para estirar longitudinalmente una lamina for-mada tubularmente y aparato correspondiente Expired ES466802A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/766,926 US4144008A (en) 1975-03-31 1977-02-09 Apparatus for stretching a tubularly-formed sheet of thermoplastic material

Publications (1)

Publication Number Publication Date
ES466802A1 true ES466802A1 (es) 1979-01-16

Family

ID=25077949

Family Applications (1)

Application Number Title Priority Date Filing Date
ES466802A Expired ES466802A1 (es) 1977-02-09 1978-02-08 Procedimiento para estirar longitudinalmente una lamina for-mada tubularmente y aparato correspondiente

Country Status (18)

Country Link
JP (1) JPS53124579A (es)
AU (1) AU3276978A (es)
BE (1) BE863806A (es)
BR (1) BR7800746A (es)
CA (1) CA1123566A (es)
DE (1) DE2805440C2 (es)
DK (1) DK57278A (es)
ES (1) ES466802A1 (es)
FI (1) FI780340A (es)
FR (1) FR2380116A1 (es)
GB (2) GB1598738A (es)
IT (1) IT1092580B (es)
LU (1) LU79030A1 (es)
NL (1) NL7801529A (es)
NO (1) NO780430L (es)
PT (1) PT67610B (es)
SE (1) SE7801484L (es)
ZA (1) ZA78643B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS587334A (ja) * 1981-07-04 1983-01-17 Sumitomo Electric Ind Ltd 紐状多孔質体の製造方法
GB8424062D0 (en) * 1984-09-24 1984-10-31 Mackley M R Oriented polymer films
GB2362351B (en) * 2000-03-18 2004-01-14 Harris Parts Ltd Extruded packaging material
AR038590A1 (es) * 2002-02-22 2005-01-19 Clopay Plastic Prod Co Hoja laminada de pelicula y metodos para su fabricacion
US7932196B2 (en) 2003-08-22 2011-04-26 Kimberly-Clark Worldwide, Inc. Microporous stretch thinned film/nonwoven laminates and limited use or disposable product applications
US7651653B2 (en) 2004-12-22 2010-01-26 Kimberly-Clark Worldwide, Inc. Machine and cross-machine direction elastic materials and methods of making same
GB0721410D0 (en) * 2007-10-31 2007-12-12 Rasmussen O B Method and apparatus for longitudinal orientation of thermoplastic film material
GB0907755D0 (en) * 2009-05-06 2009-06-24 Rasmussen O B Method for longitudinal stretching a film in solid state and apparatus to carry out the method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2773285A (en) * 1947-11-06 1956-12-11 Continental Can Co Method of making sterile containers
GB756476A (en) * 1954-03-19 1956-09-05 Ici Ltd Improvements in the seaming of films
DE1504502B2 (de) * 1962-03-17 1971-08-12 Lindauer Dormer GmbH, 8990 Lin dau Reckanlage zum biaxialen recken einer thermoplastischen kunststoffolienbahn
DE2037574A1 (en) * 1970-07-29 1972-02-10 Wolff Walsrode Ag Drawn plastics film - by drawn flatterned film tube without bonding surfaces of the flattened film tube
GB1526722A (en) * 1974-07-05 1978-09-27 Rasmussen O Method for producing a laminated high strength sheet
CA1082508A (en) * 1974-11-26 1980-07-29 Charles R. Walitalo Tear resistant separable end-connected bags
CA1075870A (en) * 1975-03-31 1980-04-22 Eckhard C.A. Schwarz Process and apparatus for stretching a non-woven web of an orientable polymeric material
DE2641533A1 (de) * 1975-09-17 1977-03-31 Biax Fiberfilm Corp Verfahren zum strecken eines thermoplastischen materials

Also Published As

Publication number Publication date
PT67610B (en) 1979-07-16
PT67610A (en) 1978-03-01
JPS53124579A (en) 1978-10-31
DE2805440C2 (de) 1981-09-17
LU79030A1 (fr) 1978-09-28
CA1123566A (en) 1982-05-18
GB1598737A (en) 1981-09-23
SE7801484L (sv) 1978-08-10
NL7801529A (nl) 1978-08-11
DE2805440A1 (de) 1978-08-10
IT7820062A0 (it) 1978-02-07
ZA78643B (en) 1978-12-27
NO780430L (no) 1978-08-10
FR2380116A1 (fr) 1978-09-08
BR7800746A (pt) 1978-09-12
GB1598738A (en) 1981-09-23
BE863806A (fr) 1978-08-09
AU3276978A (en) 1979-08-02
FI780340A (fi) 1978-08-10
IT1092580B (it) 1985-07-12
DK57278A (da) 1978-08-10

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