IE34335B1 - Improvements in or relating to profiled polymer films suitable for the manufacture of synthetic filaments,fibres and yarns;and the manufacture thereof - Google Patents

Improvements in or relating to profiled polymer films suitable for the manufacture of synthetic filaments,fibres and yarns;and the manufacture thereof

Info

Publication number
IE34335B1
IE34335B1 IE824/70A IE82470A IE34335B1 IE 34335 B1 IE34335 B1 IE 34335B1 IE 824/70 A IE824/70 A IE 824/70A IE 82470 A IE82470 A IE 82470A IE 34335 B1 IE34335 B1 IE 34335B1
Authority
IE
Ireland
Prior art keywords
profiled
web
sheet
manufacture
cooled
Prior art date
Application number
IE824/70A
Other versions
IE34335L (en
Original Assignee
Shell Int Research
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 Shell Int Research filed Critical Shell Int Research
Publication of IE34335L publication Critical patent/IE34335L/en
Publication of IE34335B1 publication Critical patent/IE34335B1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
    • D01D5/423—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by fibrillation of films or filaments
    • 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
    • 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
    • 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
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • 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

Abstract

1306214 Profiled films SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 26 May 1970 [26 June 1969] 32365/69 Headings B5A and B5B [Also in Division B6] In a process for forming a profiled film web of a molecularly-orientable synthetic organic polymer a moving sheet-like mass 2 of the polymer is brought into contact, at a temperature above its crystalline melting point, with a profiling element (e.g. a ridged roller 3) having a ridged surface adapted to form a plurality of closely-spaced longitudinal grooves on one surface of the sheet, the profiled film web 2<SP>1</SP> so formed being drawn away from the profiling element at a speed faster than the sheet-like mass is supplied thereto so as to effect a melt draw-down of the web prior to the web being cooled to a temperature below its crystalline melting point. As illustrated the profiling element preferably includes an unridged backup roller 4 and the cooling and draw-down of the profiled web is achieved by a movable element which is internally water-cooled and driven at a speed faster than the surface speed of the profiling element. The chilled profiled film web may be converted into filaments or fibres by longitudinally stretching the film at a stretch ratio and under conditions such that it fibrillates under conventional fibrillation treatments. In an example a sheet of polypropylene is extruded, profiled, cooled and stretched at 145‹ C. a ratio of 8 : 1 between two sets of Godet rollers. The filaments so produced had an average denier of 22. [GB1306214A]
IE824/70A 1969-06-26 1970-06-24 Improvements in or relating to profiled polymer films suitable for the manufacture of synthetic filaments,fibres and yarns;and the manufacture thereof IE34335B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3236569 1969-06-26

Publications (2)

Publication Number Publication Date
IE34335L IE34335L (en) 1970-12-26
IE34335B1 true IE34335B1 (en) 1975-04-16

Family

ID=10337486

Family Applications (1)

Application Number Title Priority Date Filing Date
IE824/70A IE34335B1 (en) 1969-06-26 1970-06-24 Improvements in or relating to profiled polymer films suitable for the manufacture of synthetic filaments,fibres and yarns;and the manufacture thereof

Country Status (6)

Country Link
JP (1) JPS4942845B1 (en)
CA (1) CA964015A (en)
DK (1) DK133702B (en)
GB (1) GB1306214A (en)
IE (1) IE34335B1 (en)
ZA (1) ZA704325B (en)

Also Published As

Publication number Publication date
ZA704325B (en) 1971-03-31
DK133702C (en) 1976-11-22
GB1306214A (en) 1973-02-07
IE34335L (en) 1970-12-26
JPS4942845B1 (en) 1974-11-18
DK133702B (en) 1976-07-05
CA964015A (en) 1975-03-11

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