GB887325A - Improvements in yarn packages - Google Patents
Improvements in yarn packagesInfo
- Publication number
- GB887325A GB887325A GB16532/58A GB1653258A GB887325A GB 887325 A GB887325 A GB 887325A GB 16532/58 A GB16532/58 A GB 16532/58A GB 1653258 A GB1653258 A GB 1653258A GB 887325 A GB887325 A GB 887325A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yarn
- roll
- rolls
- separator
- oven
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H55/00—Wound packages of filamentary material
- B65H55/04—Wound packages of filamentary material characterised by method of winding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
<PICT:0887325/IV (a)/1> <PICT:0887325/IV (a)/2> <PICT:0887325/IV (a)/3> <PICT:0887325/IV (a)/4> <PICT:0887325/IV (a)/5> A stable package of low, e.g. one turn per inch, twist polyamide yarn, in which the yarn has a residual shrinkage less than 7% and a shrinkage variation throughout the package less than 1%, is produced by partially relaxing a drawn yarn by 2-11% of its unrelaxed length, optionally setting the yarn whilst it is held at constant length, and winding on a cylindrical cardboard or like inexpensive disposable core at a tension between 0,05 and 0,35 grams per denier. A partial setting step may precede the relaxation which may be 6-10% or 2-6% after drawing pre-packaged or "as spun" yarn. The setting is not completed, i.e. the yarn should retain a measure of residual shrinkage so that, dependent on its ultimate use, it can be further set. As shown in Fig. 1, undrawn polyamide yarn 1 from package 2 passes successively in multiple wraps about driven and separator rolls 4 and 5, a snubbing pin 6 and draw or stretching and separator rolls 7 and 8, through a jacketed oven 9, several turns around relaxing and separator rolls 11 and 12, and is wound on to a twister package 16 by ring 14 and traveller 15 under tension controlled by the weight of the traveller or additional tensioning means (not shown). The oven 9 may provide dry or wet, e.g. steam, heat or it may be replaced by a flat, curved and/or grooved plate which the yarn contacts, or a liquid bath, e.g. of mineral oil or molten metal. Alternative apparatus for relaxing the yarn, Fig. 3, comprises a stepped draw roll 28 coacting with separator rolls 8, 18 and 19 to provide a path (arrowed) for the yarn. As shown in Fig. 4, undrawn yarn 1 from package 2 passes successively in multiple wraps around driven feed and separator rolls 4 and 5, a snubbing pin 6, draw and separator rolls 7 and 8, setting and separator rolls 9 and 10 (rotating at the same peripheral speed as roll 7), relaxing and separator rolls 11 and 12. The yarn is heated in zones b and c as by a dry oven or a steam chamber, Figs. 6 and 7 (not shown). Heat setting apparatus, Fig. 8 (which, in the assembly of apparatus of Fig. 4 obviates the need for rollers 9 and 10) may comprise an oven 22 having heat transfer media inlet 23 and a condensate outlet 24 and having idler rolls 25, 26, around which yarn is wrapped several times before returning to draw roll 7. In another modification, Fig. 9, yarn 1 drawn in snubbing contact with pin 6, passes in multiple wraps about portion 7 of draw roll 28 and separator roll 8, from portion 7 about idler rolls 25, 26 (being set in zone f) back to portion 7, traverses a steam jacket (not shown) in zone e, passes over roll 27, thence in multiple wraps around roll 30 and portion 29 of roll 28 whereby it is relaxed, and is wound as stabilized yarn. Steam jacket (in zone e), setting oven (in zone f) and rolls 25, 26, may be obviated by heat insulating the portion 7 from portion 29 and mounting it, with its separator roll, in an oven. The relaxing roll, as 11, is maintained at a lower temperature than other rolls. Specifications 461,236, 506,125, 536,177, 543,466 and U.S.A. Specifications 2,071,250, 2,130,948, 2,157,119, 2,307,846, 2,477,156 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US887325XA | 1957-05-23 | 1957-05-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB887325A true GB887325A (en) | 1962-01-17 |
Family
ID=22213119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16532/58A Expired GB887325A (en) | 1957-05-23 | 1958-05-22 | Improvements in yarn packages |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB887325A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2143870A (en) * | 1983-07-25 | 1985-02-20 | Nat Standard Co | Wire coil package |
CN102534878A (en) * | 2010-12-20 | 2012-07-04 | 村田机械株式会社 | Core wire supply apparatus and spinning machine having the same |
CN112505089A (en) * | 2020-11-02 | 2021-03-16 | 通鼎互联信息股份有限公司 | Yarn thermal shrinkage testing device and testing method |
-
1958
- 1958-05-22 GB GB16532/58A patent/GB887325A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2143870A (en) * | 1983-07-25 | 1985-02-20 | Nat Standard Co | Wire coil package |
CN102534878A (en) * | 2010-12-20 | 2012-07-04 | 村田机械株式会社 | Core wire supply apparatus and spinning machine having the same |
CN102534878B (en) * | 2010-12-20 | 2015-11-18 | 村田机械株式会社 | Heart yearn feedway and possess the spinning machinery of heart yearn feedway |
CN112505089A (en) * | 2020-11-02 | 2021-03-16 | 通鼎互联信息股份有限公司 | Yarn thermal shrinkage testing device and testing method |
CN112505089B (en) * | 2020-11-02 | 2024-05-10 | 通鼎互联信息股份有限公司 | Yarn thermal shrinkage rate testing device and testing method |
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