GB1084073A - - Google Patents
Info
- Publication number
- GB1084073A GB1084073A GB1084073DA GB1084073A GB 1084073 A GB1084073 A GB 1084073A GB 1084073D A GB1084073D A GB 1084073DA GB 1084073 A GB1084073 A GB 1084073A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filaments
- spinneret
- face
- crimp
- acute angle
- 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
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
- D01D5/20—Formation of filaments, threads, or the like with varying denier along their length
-
- 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
- D01D5/06—Wet spinning methods
-
- 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
Abstract
1,084,073. Making synthetic filaments having crimp potential. MONSANTO CO. Feb. 22, 1965 [March 2, 1964], No. 7572/65. Heading B5B. Filaments consisting of a thermoplastic polymer and having a potential crimp are made by wet spinning a solution of the polymer in an organic solvent and drawing the filaments, immediately on leaving the extrusion orifices, and while they are still in a liquid or a semiliquid gel state from the spinneret face along a straight path which is at an acute angle with the face of the spinneret instead of normal to the spinneret face (as in conventional spinning processes). The filaments are then subjected to a normal annealing process by maintaining them at an elevated temperature while they are relaxed in order to cause them to become crimped. The angle between the straight path of the filaments leaving the outlet face of the spinneret and the outlet face may be 1 to 45 degrees and is preferably 10 to 30 degrees. The thermoplastic material may comprise a copolymer of acrylonitrile and vinyl acetate composed mainly of the former. Owing to the filaments being withdrawn from the spinneret along a path which is at an acute angle to the outlet face of the spinneret under a tension sufficient to stretch the filaments substantially, the degree of stretch is variable across the cross-sectional area of the filaments. Once a crimp has been developed in the filaments, for example, during a normal annealing process it is not destroyed if the filaments are heated in subsequent processing such as dyeing. The crimp is not destroyed by immersion of the filaments in boiling water. As shown in Fig. 1, a spinning solution is pumped through a pipe 13 to a spinneret 10 immersed in a coagulating bath 11 in a trough 12 and is extruded through the spinneret to form filaments 14. The filaments 14 are drawn from the spinneret 10 at an acute angle off the face thereof by take-up rolls 16 under the adjustably mounted guide bar 15 and in contact with the solvent stripper bars 17 and 18.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US348747A US3359356A (en) | 1964-03-02 | 1964-03-02 | Process for crimping filaments at the spinneret face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1084073A true GB1084073A (en) |
Family
ID=23369360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1084073D Active GB1084073A (en) | 1964-03-02 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3359356A (en) |
| BE (1) | BE660419A (en) |
| CH (1) | CH458611A (en) |
| DE (1) | DE1660457A1 (en) |
| FR (1) | FR1425818A (en) |
| GB (1) | GB1084073A (en) |
| IL (1) | IL23080A (en) |
| LU (1) | LU48090A1 (en) |
| NL (2) | NL6502576A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3538722A (en) * | 1967-03-27 | 1970-11-10 | Owens Corning Fiberglass Corp | Method for producing curly glass fibers |
| US5165209A (en) * | 1991-01-30 | 1992-11-24 | Armstrong World Industries, Inc. | Transition element |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR759928A (en) * | 1932-11-18 | 1934-02-13 | Soie Artificielle De Valencien | Process for spinning threads that are systematically irregular in diameter, color and shine |
| BE522599A (en) * | 1952-11-05 | |||
| GB917040A (en) * | 1960-07-27 | 1963-01-30 | Courtaulds Ltd | The production of crimped polyacrylonitrile filaments |
-
0
- GB GB1084073D patent/GB1084073A/en active Active
- NL NL128278D patent/NL128278C/xx active
-
1964
- 1964-03-02 US US348747A patent/US3359356A/en not_active Expired - Lifetime
-
1965
- 1965-02-26 LU LU48090D patent/LU48090A1/xx unknown
- 1965-03-01 IL IL23080A patent/IL23080A/en unknown
- 1965-03-01 BE BE660419D patent/BE660419A/xx unknown
- 1965-03-01 FR FR7423A patent/FR1425818A/en not_active Expired
- 1965-03-01 NL NL6502576A patent/NL6502576A/xx unknown
- 1965-03-02 DE DE19651660457 patent/DE1660457A1/en active Pending
- 1965-03-02 CH CH285665A patent/CH458611A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3359356A (en) | 1967-12-19 |
| DE1660457A1 (en) | 1971-01-14 |
| LU48090A1 (en) | 1965-08-26 |
| CH458611A (en) | 1968-06-30 |
| NL128278C (en) | |
| BE660419A (en) | 1965-09-01 |
| FR1425818A (en) | 1966-01-24 |
| NL6502576A (en) | 1965-09-03 |
| IL23080A (en) | 1968-12-26 |
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