[go: up one dir, main page]

GB1225670A - - Google Patents

Info

Publication number
GB1225670A
GB1225670A GB1225670DA GB1225670A GB 1225670 A GB1225670 A GB 1225670A GB 1225670D A GB1225670D A GB 1225670DA GB 1225670 A GB1225670 A GB 1225670A
Authority
GB
United Kingdom
Prior art keywords
copolyamide
melt
homopolyamide
viscosity
spinneret
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
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 filed Critical
Publication of GB1225670A publication Critical patent/GB1225670A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
    • 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
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/32—Side-by-side structure; Spinnerette packs therefor
    • 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
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Multicomponent Fibers (AREA)

Abstract

1,225,670. Melt spinning composite polyamide filaments. ASAHI KASEI KOGYO K.K. 20 June, 1968 [22 June, 1967], No. 29406/68. Heading B5B. Composite polyamide filaments are produced by simultaneously extruding through each orifice of a spinneret a homopolyamide melt and a copolyamide melt, the homopolyamide and the copolyamide having been raised to the same temperature in separate melting zones, the process being characterized in that the relative viscosity of the copolyamide is from 0À2 to 1À0 higher than that of the homopolyamide, the inclination of the portion of the bottom surface of the spinneret in which the outlets of the orifices are situated to the vertical axis of each spinneret orifice and the relative dispositions of the two polymer streams being such that the homo-polyamide melt stream remains longer in contact with the wall of each orifice than does the stream of the molten copolyamide. The solidified melt spun composite filaments are then stretched at a temperature between 100‹ C. and a temperature not less than 30‹ C. below the melting point of the polyamide component having the lower melting point. The term " relative " viscosity is defined as the ratio of the viscosity of a solution of 1 gram of the polymer in 100 ml. of 95À5% sulphuric acid at 25‹ C. to the viscosity at the same temperature of the acid alone. The spinneret assembly used may be that described and claimed in the applicants' Specification 1,225,669. The homopolyamide may be either nylon 6 or nylon 66. The copolyamide may be a copolymer of #-caprolactam and hexamethylene diammonium adipate or hexamethylene diammonium terephthalate. The copolyamide may be a copolymer of hexamethylene diammonium adipate and hexamethylene sebacate. The copolyamide may be a terpolymer of #-caprolactam, hexamethylene diammonium adipate and hexamethylene diammonium terephthalate.
GB1225670D 1967-06-22 1968-06-20 Expired GB1225670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3959367 1967-06-22

Publications (1)

Publication Number Publication Date
GB1225670A true GB1225670A (en) 1971-03-17

Family

ID=12557389

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1225670D Expired GB1225670A (en) 1967-06-22 1968-06-20
GB1225669D Expired GB1225669A (en) 1967-06-22 1968-06-20

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1225669D Expired GB1225669A (en) 1967-06-22 1968-06-20

Country Status (4)

Country Link
CH (2) CH467879A (en)
DE (2) DE1769649A1 (en)
FR (2) FR1569451A (en)
GB (2) GB1225670A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052146A (en) * 1976-11-26 1977-10-04 Monsanto Company Extrusion pack for sheath-core filaments
JPS62156306A (en) * 1985-12-27 1987-07-11 Chisso Corp Spinneret apparatus for composite spinning

Also Published As

Publication number Publication date
FR1569452A (en) 1969-05-30
DE1769649A1 (en) 1972-02-03
GB1225669A (en) 1971-03-17
CH467879A (en) 1969-01-31
DE1760709A1 (en) 1972-01-13
CH467877A (en) 1969-01-31
FR1569451A (en) 1969-05-30

Similar Documents

Publication Publication Date Title
GB1248293A (en) Heterogeneous artificial filaments and methods for producing said filaments
GB1313767A (en) Synthetic complex conjugate filament and process of manufacturing the same
SE333038B (en)
CA2137375A1 (en) High speed spun filament yarns based on polycaprolactam and production thereof
GB1225670A (en)
GB1282020A (en) Process for the manufacture of composite synthetic filaments
GB1096249A (en) Spontaneously crimping composite filaments and yarns
ES330034A1 (en) Thick and thin yarn and process for the preparation thereof
GB965729A (en) Improvements relating to the manufacture of filaments
GB1150399A (en) Spinning of Conjugate Filaments
GB1201101A (en) A method of producing non-sticky filamentary material consisting of copolyamide
GB1207408A (en) A process for melt spinning hollow filaments and spinnerets for use therewith
GB1292388A (en) Hollow filaments
GB1172045A (en) Crimpable Conjugate Filaments and Process for their Production
JPS5881609A (en) Melt spinning method of ultrafine modified cross section yarn
ATE58401T1 (en) PROCESS FOR PRODUCTION OF YARN BY MELT SPINNING OF POLYETHYLENE TEREPHTHALATE.
JPH04222203A (en) Spinneret for combined filament yarn having different fineness
GB1139397A (en) Method of improving the purity and homogeneity of threads or filaments in melt-spinning
JPS6024846B2 (en) composite yarn
GB1157433A (en) Polyester Fibres
US3949043A (en) Manufacture of monofilaments
US3734993A (en) Method for extruding t-shaped filaments
KR870001366B1 (en) Hollow composite fiber spinning cap
GB1207062A (en) An improved composite polyamide polyester, sheath-core filament and a method for manufacturing the same
GB1116745A (en) A method of manufacturing polyamide composite filaments having a crimpability

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee