GB1152647A - A Process for the Preparation of Self-Crimping Fibres - Google Patents
A Process for the Preparation of Self-Crimping FibresInfo
- 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
- 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
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
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%.
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)
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 |
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 |
-
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)
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 |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |