ES328230A1 - Procedure of stretching of synthetic polymer tapes. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure of stretching of synthetic polymer tapes. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES328230A1
ES328230A1 ES0328230A ES328230A ES328230A1 ES 328230 A1 ES328230 A1 ES 328230A1 ES 0328230 A ES0328230 A ES 0328230A ES 328230 A ES328230 A ES 328230A ES 328230 A1 ES328230 A1 ES 328230A1
Authority
ES
Spain
Prior art keywords
cylinders
cylinder block
synthetic polymer
output
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
ES0328230A
Other languages
Spanish (es)
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.)
Saint Freres Soc Anonyme
Original Assignee
Saint Freres Soc Anonyme
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 Saint Freres Soc Anonyme filed Critical Saint Freres Soc Anonyme
Publication of ES328230A1 publication Critical patent/ES328230A1/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
    • 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
    • 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
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

Stretching process of synthetic polymer ribbons, between a cylinder block of input motors and a block of output motor cylinders, between which heated intermediate cylinders are arranged, to confer a mechanical resistance to the ribbons in the direction of the length, the circumferential velocity of the output cylinder block being greater than that of the input cylinder block and giving, the ratio of these two speeds, the overall magnitude of stretching, characterized in that the output cylinders are given a peripheral speed greater than 50 m/mm, by using intermediate cylinders whose axes are in a fixed position, whose diameter is between 50 and 300 mm and they are from 10 to 200 mm, by passing the tapes, which are initially at the temperature ordinary, on the intermediate cylinders heated to a temperature close to the softening temperature of the synthetic polymer and preferably comprised between this temperature and several degrees centigrade below, and because the intermediate cylinders are moved at a circumferential speed that grows from one cylinder to the next and comprised between that of the inlet cylinder block and that of the output cylinder block, being chosen the ratio of the circumferential speeds of two consecutive intermediate cylinders, for the last third of the total stretch, on the one hand, lower than 1.5 and, on the other hand, of decreasing value towards the exit of the cylinders. (Machine-translation by Google Translate, not legally binding)
ES0328230A 1965-06-14 1966-06-11 Procedure of stretching of synthetic polymer tapes. (Machine-translation by Google Translate, not legally binding) Expired ES328230A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR20641A FR1450585A (en) 1965-06-14 1965-06-14 Method and apparatus for drawing synthetic polymer tapes and products obtained

Publications (1)

Publication Number Publication Date
ES328230A1 true ES328230A1 (en) 1967-04-01

Family

ID=8581850

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0328230A Expired ES328230A1 (en) 1965-06-14 1966-06-11 Procedure of stretching of synthetic polymer tapes. (Machine-translation by Google Translate, not legally binding)

Country Status (6)

Country Link
BE (1) BE682494A (en)
ES (1) ES328230A1 (en)
FR (1) FR1450585A (en)
GB (1) GB1105029A (en)
LU (1) LU51322A1 (en)
NL (1) NL6608248A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2328639C3 (en) * 1973-06-06 1985-04-18 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Process for the production of monoaxially stretched film strips from polypropylene
US4310485A (en) * 1980-09-26 1982-01-12 Crown Zellerbach Corporation Method of improving the flatness of compression-rolled plastic film
FR2852883B1 (en) * 2003-03-31 2006-07-28 Darlet Marchante Tech Sa DEVICE FOR LONGITUDINAL STRETCHING OF FILMS
CN104328520A (en) * 2014-09-23 2015-02-04 苏州瑞邦塑胶有限公司 Flat membrane wire drawing method of plastic
CN107012555A (en) * 2017-05-11 2017-08-04 武汉纺织大学 A kind of resultant yarn method of type film silkization

Also Published As

Publication number Publication date
BE682494A (en) 1966-11-14
LU51322A1 (en) 1966-08-16
FR1450585A (en) 1966-06-24
GB1105029A (en) 1968-03-06
NL6608248A (en) 1966-12-15

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