EP0165625A2 - Streckverfahren für synthetische Filamente - Google Patents

Streckverfahren für synthetische Filamente Download PDF

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Publication number
EP0165625A2
EP0165625A2 EP85200720A EP85200720A EP0165625A2 EP 0165625 A2 EP0165625 A2 EP 0165625A2 EP 85200720 A EP85200720 A EP 85200720A EP 85200720 A EP85200720 A EP 85200720A EP 0165625 A2 EP0165625 A2 EP 0165625A2
Authority
EP
European Patent Office
Prior art keywords
filaments
stretching
train
liquid
bath
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.)
Granted
Application number
EP85200720A
Other languages
English (en)
French (fr)
Other versions
EP0165625A3 (en
EP0165625B1 (de
Inventor
Eugenio Calvete Capdevila
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT85200720T priority Critical patent/ATE46549T1/de
Publication of EP0165625A2 publication Critical patent/EP0165625A2/de
Publication of EP0165625A3 publication Critical patent/EP0165625A3/fr
Application granted granted Critical
Publication of EP0165625B1 publication Critical patent/EP0165625B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch

Definitions

  • the present invention relates to improvements made to the processes of mixed drawing of synthetic filaments.
  • the improvements relate to improvements made to the processes for drawing synthetic filaments and, preferably to polypropylene filaments or the like, improvements which consist in providing the heat necessary for drawing, by contact and without pressure, by to do this, using a mixed process in which two partial draws take place, the first by heating in a liquid bath and the second by dry heating.
  • the object of the invention is to overcome these drawbacks and, to this end, it involves, as indicated, two partial draws, the first of which is carried out in the wet, using known means, while in the second, heated plates which provide temperatures considerably higher than those obtained by traditional methods, these temperatures being able to be supported by the filaments without deterioration of the latter thanks to ap-. wearing of the liquid introduced into said filaments during the previous wet stretching phase.
  • the high temperature of the heated plates, in contact with the filaments loaded with liquid therefore produces an instantaneous vaporization of the latter, thus allowing a maximum filament rage, maximum orientation of their molecules and maximum stability.
  • the figures represent a feed train made up of traditional means which in the case of the present example consist of rotary rollers 1 which, in combination with the drawing train 2, the bath 3 brought to an adequate temperature and the submerged rollers 4 constitute the first partial stretching of the filaments 5.
  • the filaments 5 are then routed continuously to the second drawing means of the process using, to do this, the drawing train 2 which then operates as a feed train and which brings the filaments 5, loaded with liquid by their passage in the bath 3, towards the plates 6 heated to a high temperature, of about 160 "C, where the liquid vaporizes allowing the filaments to withstand this temperature without melting; stretching occurs, in these circumstances and the filaments are stabilized in cooperation with the drawing train 7.
  • the drawing train 2 which then operates as a feed train and which brings the filaments 5, loaded with liquid by their passage in the bath 3, towards the plates 6 heated to a high temperature, of about 160 "C, where the liquid vaporizes allowing the filaments to withstand this temperature without melting; stretching occurs, in these circumstances and the filaments are stabilized in cooperation with the drawing train 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP85200720A 1984-06-15 1985-05-09 Streckverfahren für synthetische Filamente Expired EP0165625B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85200720T ATE46549T1 (de) 1984-06-15 1985-05-09 Streckverfahren fuer synthetische filamente.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES533461A ES8504982A1 (es) 1984-06-15 1984-06-15 Perfeccionamientos en los sistemas de estiraje de filamentos sinteticos
ES533461 1984-06-15

Publications (3)

Publication Number Publication Date
EP0165625A2 true EP0165625A2 (de) 1985-12-27
EP0165625A3 EP0165625A3 (en) 1987-05-06
EP0165625B1 EP0165625B1 (de) 1989-09-20

Family

ID=8487495

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85200720A Expired EP0165625B1 (de) 1984-06-15 1985-05-09 Streckverfahren für synthetische Filamente

Country Status (7)

Country Link
EP (1) EP0165625B1 (de)
AT (1) ATE46549T1 (de)
BE (1) BE902624A (de)
DE (1) DE3573143D1 (de)
ES (1) ES8504982A1 (de)
FR (1) FR2566007B1 (de)
IT (1) IT1176453B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691424A3 (de) * 1994-06-08 1996-04-17 Filteco Spa Verfahren und Vorrichtung zur Herstellung von verstreckten Garnen
EP0731196A1 (de) * 1995-02-23 1996-09-11 B a r m a g AG Verfahren zum Spinnen, Verstrecken und Aufspulen eines synthetischen Fadens
US5698146A (en) * 1995-07-18 1997-12-16 Barmag Ag Method and apparatus for spinning a synthetic multi-filament yarn

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1363999A (fr) * 1962-04-30 1964-06-19 Shell Int Research Procédé perfectionné pour la production de fibres de polyoléfines
US3816486A (en) * 1969-11-26 1974-06-11 Du Pont Two stage drawn and relaxed staple fiber

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1363999A (fr) * 1962-04-30 1964-06-19 Shell Int Research Procédé perfectionné pour la production de fibres de polyoléfines
US3816486A (en) * 1969-11-26 1974-06-11 Du Pont Two stage drawn and relaxed staple fiber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691424A3 (de) * 1994-06-08 1996-04-17 Filteco Spa Verfahren und Vorrichtung zur Herstellung von verstreckten Garnen
EP0731196A1 (de) * 1995-02-23 1996-09-11 B a r m a g AG Verfahren zum Spinnen, Verstrecken und Aufspulen eines synthetischen Fadens
US5698146A (en) * 1995-07-18 1997-12-16 Barmag Ag Method and apparatus for spinning a synthetic multi-filament yarn

Also Published As

Publication number Publication date
BE902624A (fr) 1985-09-30
IT8422004A0 (it) 1984-07-23
EP0165625A3 (en) 1987-05-06
IT1176453B (it) 1987-08-18
FR2566007B1 (fr) 1988-01-15
DE3573143D1 (en) 1989-10-26
ES533461A0 (es) 1985-05-01
EP0165625B1 (de) 1989-09-20
ATE46549T1 (de) 1989-10-15
FR2566007A1 (fr) 1985-12-20
ES8504982A1 (es) 1985-05-01

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