GB1152647A – A Process for the Preparation of Self-Crimping Fibres
– Google Patents
GB1152647A – A Process for the Preparation of Self-Crimping Fibres
– Google Patents
A Process for the Preparation of Self-Crimping Fibres
Info
Publication number
GB1152647A
GB1152647A
GB5416667A
GB5416667A
GB1152647A
GB 1152647 A
GB1152647 A
GB 1152647A
GB 5416667 A
GB5416667 A
GB 5416667A
GB 5416667 A
GB5416667 A
GB 5416667A
GB 1152647 A
GB1152647 A
GB 1152647A
Authority
GB
United Kingdom
Prior art keywords
filaments
acid
spun
crimp
spinneret
Prior art date
1966-12-02
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
GB5416667A
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.)
Kurashiki Rayon Co Ltd
Original Assignee
Kurashiki Rayon Co Ltd
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.)
1966-12-02
Filing date
1967-11-28
Publication date
1969-05-21
1967-11-28
Application filed by Kurashiki Rayon Co Ltd
filed
Critical
Kurashiki Rayon Co Ltd
1969-05-21
Publication of GB1152647A
publication
Critical
patent/GB1152647A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
D01D5/23—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes
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
Abstract
1,152,647. Self-crimping polyester fibres. KURASHIKI RAYON, K.K. 28 Nov., 1967 [2 Dec., 1966], No. 54166/67. Heading B5B. A process for the preparation of self-crimping fibres comprises melt-spinning a linear polyester, characterized in that the polyester is extruded through a spinneret having orifices of 0À55 to 5À5 mm. in diameter, and the filaments are contacted with a high velocity gaseous current at a region between 3 and 50 cms. below the spinneret, the average velocity of the component of velocity of the current transverse to the filaments’ forwarding direction being at least 3À3 m. per sec., and the filaments coming into no direct contact with the high velocity current within the region less than 3 cms. below the spinneret. The preferred polyester is polyethylene terephthalate and its copolymers. The copolymers may contain a minor proportion of a dibasic acid component other than terephthalic acid, e.g. isophthalic or adipic acid; and also may contain a minor proportion of another glycol component as e.g. propylene, butylene, neopentyl, diethylene or polyethylene glycol. The copolymers may contain another ester-forming compound or compounds such as a monobasic carboxylic acid, a monoalcohol, a tri-funcfcional polyalcohol such as glycerine, a tetra-functional polyalcohol such as pentaerythritol, a tribasic acid such as trimesic acid, a carboxylic acid having a hydroxyl group such as para-hydroxybenzoic acid or #-hydroxy-p-ethoxy benzoic acid, and phenols. Preferably the diameter of the orifices is 1 to 2 mm., the rate of polymer discharge from each orifice is from 0À2 to 25 grams per minute, especially from 0À5 to 4À5 grams per minute, the high velocity gaseous current is applied to the spun filaments within a region of 5 to 15 cms. below the spinneret, the peak value of the component of velocity of the current transverse to the filaments’ forwarding direction is at least 4 m. per sec., said high velocity gaseous current having a vertical width of at least 3 cms., and the take-up speed of the spun filaments is suitably from 300 to 1200 m. per min; the take-up speed referring to the supply rate of the spun filaments to the drawing zone, in the case where a filament drawing is performed immediately after the spinning and the filaments are wound up after being drawn. The orifices need not be circular; and where non-circular orifices are used the hydraulic radius of the non-circular orifice (defined in the Specification as equal to the cross-sectional area of the polymer stream divided by the wetted perimeter) is substantially the same as that of the circular orifice which is 0À55 to 5À5 mm. in diameter. In the case of a hollow fibre the crosssection of which contains voids, the voids are included in calculating the cross-sectional area of the polymer stream. The filaments obtained, which may be drawn either immediately after spinning, or separately after the winding, have their latent crimp developed when the filaments are further heat treated or swollen in a relaxed or tension-free condition; heating is preferred. In Example 1 a polyethylene terephthalate is spun to yield filaments which are subjected to a 2-stage drawing to a draw ratio of 1À8, the first stage drawing using a hot water bath at 75‹ C., and the second stage drawing a hot water bath at 98‹ C. The filaments are then heat treated for 10 minutes by a hot air current at 145‹ C. in a relaxed state. Highly crimped fibres were obtained having 8 crimps per inch, a degree of crimp of 15% and a crimp recovery of 93%. In Examples 2-7, similar methods are employed. In Example 8 a polyethylene terephthalate containing 5 mole per cent of isophthalic acid as a copolymeric component is spun by the technique of Example 1. In Example 9 a polyethylene terephthalate is spun through a spinneret having 60 Y-shaped orifices. Each branch of the Y-shape was 0À3 mm. wide and 0À9 mm. long. After winding the filaments were drawn to a draw ratio of 2À05 with hot water baths, and heat treated by a hot air stream at 140‹ C. for ten minutes. The resulting self-crimping fibres had a crimp frequency of 12 per inch, a degree of crimp of 15% and a crimp recovery of 92%.
GB5416667A
1966-12-02
1967-11-28
A Process for the Preparation of Self-Crimping Fibres
Expired
GB1152647A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP7910766A
JPS5336048B1
(en)
1966-12-02
1966-12-02
Publications (1)
Publication Number
Publication Date
GB1152647A
true
GB1152647A
(en)
1969-05-21
Family
ID=13680657
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB5416667A
Expired
GB1152647A
(en)
1966-12-02
1967-11-28
A Process for the Preparation of Self-Crimping Fibres
Country Status (4)
Country
Link
JP
(1)
JPS5336048B1
(en)
DE
(1)
DE1660446A1
(en)
FR
(1)
FR1546922A
(en)
GB
(1)
GB1152647A
(en)
Cited By (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
WO1995014799A1
(en)
*
1993-11-22
1995-06-01
Wellman, Inc.
Method of forming self-texturing filaments and resulting self-texturing filaments
US5510183A
(en)
*
1993-11-22
1996-04-23
Wellman, Inc.
Method of forming self-texturing filaments and resulting self-texturing filaments
US10174454B2
(en)
2015-09-11
2019-01-08
Parkdale Incorporated
Polyester composition with improved dyeing properties
CN111101226A
(en)
*
2019-12-29
2020-05-05
江苏恒力化纤股份有限公司
Bio-based degradable polyester fiber and preparation method thereof
CN111101238A
(en)
*
2019-12-24
2020-05-05
江苏恒力化纤股份有限公司
Parallel self-crimping elastic fiber and preparation method thereof
1966
1966-12-02
JP
JP7910766A
patent/JPS5336048B1/ja
active
Pending
1967
1967-11-28
GB
GB5416667A
patent/GB1152647A/en
not_active
Expired
1967-12-01
FR
FR130673A
patent/FR1546922A/en
not_active
Expired
1967-12-02
DE
DE19671660446
patent/DE1660446A1/en
active
Pending
Cited By (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
WO1995014799A1
(en)
*
1993-11-22
1995-06-01
Wellman, Inc.
Method of forming self-texturing filaments and resulting self-texturing filaments
US5510183A
(en)
*
1993-11-22
1996-04-23
Wellman, Inc.
Method of forming self-texturing filaments and resulting self-texturing filaments
US5531951A
(en)
*
1993-11-22
1996-07-02
Wellman, Inc.
Method of forming staple fibers from self-texturing filaments
US5614296A
(en)
*
1993-11-22
1997-03-25
Wellman, Inc.
Resilient molded preform made from staple fibers of self-texturing filaments
US10174454B2
(en)
2015-09-11
2019-01-08
Parkdale Incorporated
Polyester composition with improved dyeing properties
US10351995B2
(en)
2015-09-11
2019-07-16
Parkdale Incorporated
Polyester composition with improved dyeing properties
CN111101238A
(en)
*
2019-12-24
2020-05-05
江苏恒力化纤股份有限公司
Parallel self-crimping elastic fiber and preparation method thereof
CN111101226A
(en)
*
2019-12-29
2020-05-05
江苏恒力化纤股份有限公司
Bio-based degradable polyester fiber and preparation method thereof
Also Published As
Publication number
Publication date
JPS5336048B1
(en)
1978-09-30
DE1660446A1
(en)
1971-06-24
FR1546922A
(en)
1968-11-22
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Legal Events
Date
Code
Title
Description
1969-10-01
PS
Patent sealed
1978-07-05
PCNP
Patent ceased through non-payment of renewal fee
