GB1423122A - Method of and apparatus for texturizing thermoplastic yarns - Google Patents
Method of and apparatus for texturizing thermoplastic yarnsInfo
- Publication number
- GB1423122A GB1423122A GB2157374A GB2157374A GB1423122A GB 1423122 A GB1423122 A GB 1423122A GB 2157374 A GB2157374 A GB 2157374A GB 2157374 A GB2157374 A GB 2157374A GB 1423122 A GB1423122 A GB 1423122A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yarn
- fluid
- zone
- venturi
- crimping
- 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
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
- D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
1423122 Crimping yarns SCAM ENG SOC RESP LIM 15 May 1974 [15 May 1973] 21573/74 Heading D1F Thermoplastic yarn 2 is texturized by preheating the yarn until it is semi-plastic by contact with at least one heated surface 1, passing the preheated yarn through a crimping zone 10 by a jet of fluid under pressure which is at a temperature such as to maintain the yarn in a semi-plastic state, effecting crimping of the yarn by sudden expansion of the fluid in the zone 10, discharging the fluid as it leaves the zone 10, and collecting the yarn in a stuffer box 11. In one embodiment, Figs. 1 and 3, the yarn 2 is preheated by rollers 1, around which it may be wound one or more times, to a temperature between the second order transition point and the melting point of the polymer constituting the yarn, and is fed to a texturizing means 4 by way, if desired, of a moisturizing chamber 3. The yarn is fed into the inlet 7 of a venturi 8 by a jet of hot fluid, e.g. air or superheated steam, by an injector 5 having a nozzle with a calibrated opening 6. The filaments of the yarn 2 emerging from the outlet 9 of the venturi 8 are crimped by the sudden expansion of the fluid in the zone 10 and the yarn passes into the stuffer box 11. The expanded fluid is discharged from the zone 10 through openings 12 which may lie in a plane perpendicular to the axis of the venturi 8 or may be inclined at an angle of 15‹-30‹ to this plane. The stuffer box 11 may be provided with a stopper device to regulate the density and the time of residence of the yarn therein. Discharge rollers 13 may be provided. Preferably, the inlet cone angle of the venturi 8 is 75‹-90‹ and the outlet cone angle 75‹-110‹. In another embodiment, Fig. 4 (not shown), the pre-heating rollers are replaced by a heated plate (15). Specified yarns are polyamides, e.g. nylon 6 and nylon 66, linear polyesters, cellulose esters, polyolefins, e.g. polypropylene, and polyvinyl and polyacrylic resins.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8251173A IT992425B (en) | 1973-05-15 | 1973-05-15 | PROCESS AND APPARATUS FOR TESTING THERMOPLASTIC YARNS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1423122A true GB1423122A (en) | 1976-01-28 |
Family
ID=11318070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2157374A Expired GB1423122A (en) | 1973-05-15 | 1974-05-15 | Method of and apparatus for texturizing thermoplastic yarns |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5069345A (en) |
| CH (1) | CH563472A5 (en) |
| CS (1) | CS178170B2 (en) |
| DE (1) | DE2423476A1 (en) |
| GB (1) | GB1423122A (en) |
| IT (1) | IT992425B (en) |
| SU (1) | SU650514A3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5579566A (en) * | 1991-10-26 | 1996-12-03 | Barmag Ag | Apparatus and method for stuffer box crimping synthetic filament yarns |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5175155A (en) * | 1974-12-23 | 1976-06-29 | Unitika Ltd | GOSEISENIKASADAKASHINO SEIZOHOHO |
| US20200370209A1 (en) * | 2016-02-12 | 2020-11-26 | Invista North America S.A.R.L. | Process for heat setting twisted, bulked continuous filament yarn |
-
1973
- 1973-05-15 IT IT8251173A patent/IT992425B/en active
-
1974
- 1974-05-14 SU SU742025070A patent/SU650514A3/en active
- 1974-05-14 CH CH662274A patent/CH563472A5/xx not_active IP Right Cessation
- 1974-05-14 JP JP5294074A patent/JPS5069345A/ja active Pending
- 1974-05-14 CS CS343474A patent/CS178170B2/cs unknown
- 1974-05-15 DE DE19742423476 patent/DE2423476A1/en not_active Withdrawn
- 1974-05-15 GB GB2157374A patent/GB1423122A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5579566A (en) * | 1991-10-26 | 1996-12-03 | Barmag Ag | Apparatus and method for stuffer box crimping synthetic filament yarns |
Also Published As
| Publication number | Publication date |
|---|---|
| SU650514A3 (en) | 1979-02-28 |
| CS178170B2 (en) | 1977-08-31 |
| JPS5069345A (en) | 1975-06-10 |
| CH563472A5 (en) | 1975-06-30 |
| DE2423476A1 (en) | 1974-12-05 |
| IT992425B (en) | 1975-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |