GB738067A - Improved process for the melt-spinning of synthetic linear polymers - Google Patents

Improved process for the melt-spinning of synthetic linear polymers

Info

Publication number
GB738067A
GB738067A GB20512/53A GB2051253A GB738067A GB 738067 A GB738067 A GB 738067A GB 20512/53 A GB20512/53 A GB 20512/53A GB 2051253 A GB2051253 A GB 2051253A GB 738067 A GB738067 A GB 738067A
Authority
GB
United Kingdom
Prior art keywords
atmosphere
relative humidity
bobbins
per cent
hours
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
GB20512/53A
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.)
Perfogit SpA
Original Assignee
Perfogit SpA
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 Perfogit SpA filed Critical Perfogit SpA
Publication of GB738067A publication Critical patent/GB738067A/en
Expired legal-status Critical Current

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
    • D01D5/08—Melt spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Artificial Filaments (AREA)
  • Polyamides (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

In the melt-spinning of synthetic linear polymers, the polymer is extruded into a gaseous medium having any desired relative humidity, wound on bobbins, e.g. at a speed of the order of 1000 metres per minute, in an atmosphere having a relative humidity not higher than and preferably lower than 50 per cent and, after winding, is left in an atmosphere of this relative humidity for some hours, e.g. 2-36 and particularly 18-26 hours. The atmosphere in which the bobbins are wound may have a temperature not lower than 20 DEG C. The bobbins, after being left for some hours, subsequent to being wound up, in an atmosphere of relative humidity not over 50 per cent, may be brought into an atmosphere of relative humidity over 50 per cent and subsequently unwound therein. The polymer may be a polyamide which may be obtained by polymerization of aminocaproic acid or of caprolactam. In the example such a polyamide is melt spun at 1000 metres per minute to form a 15 denier yarn in an atmosphere of relative humidity 65-70 per cent at 20-23 DEG C., is wound on bobbins in an atmosphere of relative humidity 45 per cent at 20-23 DEG C., and the bobbins are left in this atmosphere for 18-26 hours. They are then left for some hours in an atmosphere at 20-23 DEG C. and relative humidity 65-70 per cent, and can then be unwound therein at speeds of over 200 metres per minute.
GB20512/53A 1952-08-06 1953-07-23 Improved process for the melt-spinning of synthetic linear polymers Expired GB738067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT738067X 1952-08-06

Publications (1)

Publication Number Publication Date
GB738067A true GB738067A (en) 1955-10-05

Family

ID=11315388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20512/53A Expired GB738067A (en) 1952-08-06 1953-07-23 Improved process for the melt-spinning of synthetic linear polymers

Country Status (5)

Country Link
US (1) US2811410A (en)
BE (1) BE521879A (en)
DE (1) DE1036459B (en)
FR (1) FR1081615A (en)
GB (1) GB738067A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2548221A1 (en) * 1983-06-30 1985-01-04 Snia Fibre Process for the production of windings of polycaproamide yarn and windings obtained by this process

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB852351A (en) * 1956-05-18 1960-10-26 Snia Viscosa Improvements in or relating to processes and apparatus for melt-spinning of synthetic linear polyamides
US3088794A (en) * 1960-08-26 1963-05-07 Du Pont Process for spinning and drawing polyalkylene isophthalamides
GB957079A (en) * 1961-10-05 1964-05-06 Ici Ltd Stretching process
NL290764A (en) * 1962-03-29
US3216965A (en) * 1962-03-29 1965-11-09 Celanese Corp Blend of a polyterephthalamide and a lower melting polyamide for improved dye receptivity
US3249591A (en) * 1962-06-01 1966-05-03 Du Pont Homopolyamide of recurring bis (paraaminocyclohexyl) methane-azelamide units
US3247300A (en) * 1962-10-25 1966-04-19 Du Pont Process for producing highly crimped fibers having modified surfaces
JPS609909A (en) * 1983-06-24 1985-01-19 Asahi Chem Ind Co Ltd Nylon 66 fiber having excellent level dyeing property and its manufacture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE426903A (en) * 1937-02-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2548221A1 (en) * 1983-06-30 1985-01-04 Snia Fibre Process for the production of windings of polycaproamide yarn and windings obtained by this process

Also Published As

Publication number Publication date
DE1036459B (en) 1958-08-14
BE521879A (en)
US2811410A (en) 1957-10-29
FR1081615A (en) 1954-12-21

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