GB1316678A - Process for the manufacture of crimped fibres and filaments - Google Patents
Process for the manufacture of crimped fibres and filamentsInfo
- Publication number
- GB1316678A GB1316678A GB2678270A GB2678270A GB1316678A GB 1316678 A GB1316678 A GB 1316678A GB 2678270 A GB2678270 A GB 2678270A GB 2678270 A GB2678270 A GB 2678270A GB 1316678 A GB1316678 A GB 1316678A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filaments
- drying
- crimp
- tow
- developing
- 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
Abstract
1316678 Developing crimp in filaments FARBWERKE HOECHST AG 3 June 1970 [3 June 1969] 26782/70 Heading D1F A process for the manufacture of threedimensionally crimped fibres and filaments of synthetic high-polymers from filaments or tows which are wetted, and to which a latent crimp has been conferred by producing an orientation gradient over their cross-sectional area, comprises drawing the filaments or tows, drying them at a temperature ranging between 20‹C below the second order transition temperature and 35‹C below the melting point of the filaments, without permitting shrinkage, and then developing the crimp at a temperature ranging between 10‹C below the second order transition temperature and 35‹C below the melting point of the filaments, without applying tension. The preferred temperature ranges are stated to be as follows; drying-between 90‹C and 160‹C; developing the crimp-between 60‹C and 230‹C, preferably 90‹C to 130‹C. The filaments may be cooled after drying and then subjected to heat treatment to develop the crimp. The synthetic filaments may be of polyester, or polyester amide, preferably polyethylene terephthalate. In a preferred embodiment, the filaments are drawn during the drying and cooling processes by from 1 to 50%. preferably 1 to 10%, based on the length of the filaments before this drawing process. The drying may be effected by passage of the filaments or tow about a heated draw roll, and cooling by passage about a cooled draw roll. The crimp is preferably developed by allowing the filaments to fall freely onto a conveyor belt, and directed superheated steam through the tow. The undrawn filaments or tow may be passed through a brightening bath which bath may also contain substances favourably influencing the sliding and adhesion properties of the fibres and preventing electrostatic charges. Drying of the filaments or tow may also be effected on a heated metal surface, in hot air, by infra-red heating or in a high-frequency alternating electromagnetic field.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1928243A DE1928243B2 (en) | 1969-06-03 | 1969-06-03 | Process for the production of three-dimensionally crimped threads or bundles of threads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1316678A true GB1316678A (en) | 1973-05-09 |
Family
ID=5735964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2678270A Expired GB1316678A (en) | 1969-06-03 | 1970-06-03 | Process for the manufacture of crimped fibres and filaments |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3710463A (en) |
| AT (1) | AT324528B (en) |
| BE (1) | BE751396A (en) |
| CH (1) | CH512593A (en) |
| DE (1) | DE1928243B2 (en) |
| ES (1) | ES380241A1 (en) |
| FR (1) | FR2049858A5 (en) |
| GB (1) | GB1316678A (en) |
| LU (1) | LU61037A1 (en) |
| NL (1) | NL7007716A (en) |
| RO (1) | RO61239A (en) |
| ZA (1) | ZA703691B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0314581B1 (en) * | 1987-10-29 | 1994-06-22 | Terumo Kabushiki Kaisha | Oxygenator using porous hollow fiber membranes |
| US5368925A (en) * | 1989-06-20 | 1994-11-29 | Japan Vilene Company, Ltd. | Bulk recoverable nonwoven fabric, process for producing the same and method for recovering the bulk thereof |
| US5454142A (en) * | 1992-12-31 | 1995-10-03 | Hoechst Celanese Corporation | Nonwoven fabric having elastometric and foam-like compressibility and resilience and process therefor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3213171A (en) * | 1959-05-01 | 1965-10-19 | Du Pont | Process of producing spontaneously crimpable filaments from asymmetrically quenched and drawn fiber-forming polymers |
| US3199281A (en) * | 1961-09-27 | 1965-08-10 | Du Pont | Composite polyester yarn of differentially shrinkable continuous filaments |
| US3188714A (en) * | 1963-03-22 | 1965-06-15 | Eastman Kodak Co | Process of producing self-crimping fibers |
| US3414648A (en) * | 1964-08-24 | 1968-12-03 | Du Pont | Drawing and crimping tows of asymmetrically birefringent polyester filaments |
| US3468996A (en) * | 1966-03-08 | 1969-09-23 | Du Pont | Process for producing composite polyester yarn that bulks at elevated temperatures |
| DE1660316A1 (en) * | 1967-01-03 | 1971-01-14 | Hoechst Ag | Method and device for the production of spun-crimped threads from linear high polymers |
-
1969
- 1969-06-03 DE DE1928243A patent/DE1928243B2/en active Pending
-
1970
- 1970-05-27 RO RO63458A patent/RO61239A/ro unknown
- 1970-05-27 US US00041051A patent/US3710463A/en not_active Expired - Lifetime
- 1970-05-28 NL NL7007716A patent/NL7007716A/xx unknown
- 1970-06-01 LU LU61037D patent/LU61037A1/xx unknown
- 1970-06-01 ES ES380241A patent/ES380241A1/en not_active Expired
- 1970-06-02 CH CH823270A patent/CH512593A/en not_active IP Right Cessation
- 1970-06-02 ZA ZA703691A patent/ZA703691B/en unknown
- 1970-06-03 FR FR7020358A patent/FR2049858A5/fr not_active Expired
- 1970-06-03 AT AT495270A patent/AT324528B/en not_active IP Right Cessation
- 1970-06-03 BE BE751396D patent/BE751396A/en unknown
- 1970-06-03 GB GB2678270A patent/GB1316678A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE751396A (en) | 1970-12-03 |
| NL7007716A (en) | 1970-12-07 |
| LU61037A1 (en) | 1972-03-22 |
| FR2049858A5 (en) | 1971-03-26 |
| RO61239A (en) | 1976-09-15 |
| ZA703691B (en) | 1971-01-27 |
| US3710463A (en) | 1973-01-16 |
| DE1928243A1 (en) | 1970-12-10 |
| CH512593A (en) | 1971-09-15 |
| AT324528B (en) | 1975-09-10 |
| ES380241A1 (en) | 1972-08-16 |
| DE1928243B2 (en) | 1974-05-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |