GB1054019A - - Google Patents

Info

Publication number
GB1054019A
GB1054019A GB1054019DA GB1054019A GB 1054019 A GB1054019 A GB 1054019A GB 1054019D A GB1054019D A GB 1054019DA GB 1054019 A GB1054019 A GB 1054019A
Authority
GB
United Kingdom
Prior art keywords
filament
copolyamide
crimp
relaxed
homopolyamide
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.)
Active
Application number
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.)
Publication of GB1054019A publication Critical patent/GB1054019A/en
Active 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
    • D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
    • 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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent

Abstract

1,054,019. Composite polyamide filaments. E. I. DU PONT DE NEMOURS & CO. Sept. 24, 1965 [Oct. 1, 1964], No. 40788/65. Heading B5B. [Also in Division D1] A drawn, heat relaxed composite polyamide filament comprises two continuous, mutually adherent components disposed in side by side or eccentric sheath-core configuration, one component consisting of a homopolyamide and the other of a copolyamide, characterized in that (a) the copolyamide consists essentially of 8-18% or 57-78% of hexamethylene adipamide or sebacamide, together with epsiloncaproamide and (b) the homopolyamide has a lower shinkage potential than the copolyamide and is preferably selected from the group comprising polyhexamethylene adipamide, sebacamide and dodecanamide and polyepsiloncaproamide. The filament may be formed by melt extrusion, heat set, drawn, heat relaxed at a temperature above 140‹ C. causing it to crimp into helical form, and subsequently stretched an amount only sufficient to remove the crimp. The copolyamide may be the core of the composite filament, the latter having an eccentric sheath-core configuration. The filament may be exposed in a relaxed condition to steam at about 118‹ C. so as to cause the filament to crimp. This step may be effected after the filament has been incorporated into a fabric.
GB1054019D 1964-10-01 Active GB1054019A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40081064A 1964-10-01 1964-10-01

Publications (1)

Publication Number Publication Date
GB1054019A true GB1054019A (en)

Family

ID=23585118

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1054019D Active GB1054019A (en) 1964-10-01

Country Status (6)

Country Link
BE (1) BE670407A (en)
CH (1) CH434553A (en)
DE (1) DE1660559A1 (en)
FR (1) FR1554561A (en)
GB (1) GB1054019A (en)
NL (1) NL6512753A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3720576A (en) * 1966-03-11 1973-03-13 Asahi Chemical Ind Crimped composite fibers and process for preparation thereof

Also Published As

Publication number Publication date
BE670407A (en) 1966-01-31
DE1660559A1 (en) 1970-04-16
NL6512753A (en) 1966-04-04
FR1554561A (en) 1969-01-24
CH434553A (en) 1967-04-30

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