GB1226726A - - Google Patents
Info
- Publication number
- GB1226726A GB1226726A GB1226726DA GB1226726A GB 1226726 A GB1226726 A GB 1226726A GB 1226726D A GB1226726D A GB 1226726DA GB 1226726 A GB1226726 A GB 1226726A
- Authority
- GB
- United Kingdom
- Prior art keywords
- holes
- inch
- diameter
- undercut
- web
- 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
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/32—Side-by-side structure; Spinnerette packs therefor
Abstract
1,226,726. Spinneret for producing bifilament yarn. ALLIED CHEMICAL CORP. 4 June, 1969 [9 July, 1968], No. 28355/69. Heading B5B. A spinneret for producing bifilament yarn from a molten linear synthetic polymer comprises an extrusion plate 36 having an orifice arrangement 30 comprised of a pair of holes 32 and 34 extending parallel to each other through the plate and separated by a web structure 38 of thickness not more than 0À01 inch, the web structure being undercut at 40 approximately 0À002 to 0À008 inch to improve the coalescence of separate streams of molten polymer extruded through the holes. The holes may be of different sizes, as shown, or of the same size; in the former case the larger hole has preferably a diameter at least twice that of the smaller hole. The width of the web undercut is from 0À005 to 0À03 inch depending on the hole diameter; smaller holes have an undercut width equal to their diameter, whilst larger holes (e.g. 0À04 inch diameter) have an undercut width less than their diameter. The web thickness is preferably from 0À002 to 0À006 inch. The extrusion plate may have a countersunk portion on the inner face to reduce the length of the holes. The separate streams of molten polymer coalesce immediately prior to leaving the extrusion plate, and good coalescence is obtained.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US74347268A | 1968-07-09 | 1968-07-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1226726A true GB1226726A (en) | 1971-03-31 |
Family
ID=24988910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1226726D Expired GB1226726A (en) | 1968-07-09 | 1969-06-14 |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE735849A (en) |
| BR (1) | BR6910577D0 (en) |
| CH (1) | CH507382A (en) |
| DE (1) | DE1934845A1 (en) |
| ES (1) | ES369313A1 (en) |
| FR (1) | FR2012612A1 (en) |
| GB (1) | GB1226726A (en) |
| NL (1) | NL6910521A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002052074A1 (en) * | 2000-12-21 | 2002-07-04 | Kimberly-Clark Worldwide, Inc. | Dual capillary spinneret with single outlet for production of homofilament crimp fibers |
| CN115012049A (en) * | 2022-05-19 | 2022-09-06 | 张家港江苏科技大学产业技术研究院 | Hollow fiber and processing equipment and processing method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4562029A (en) * | 1980-06-06 | 1985-12-31 | Celanese Corporation | Self-crimping polyester yarn |
| US4720314A (en) * | 1980-06-06 | 1988-01-19 | Celanese Corporation | Process for producing self-crimping polyester yarn |
| FR2925072B1 (en) * | 2007-12-14 | 2010-09-10 | Promiles | METHOD FOR MANUFACTURING A FILAMENT, EXTRUSION LINE FOR CARRYING OUT SAID MANUFACTURING METHOD AND FILAMENT OBTAINED |
-
1969
- 1969-06-14 GB GB1226726D patent/GB1226726A/en not_active Expired
- 1969-07-04 CH CH1025969A patent/CH507382A/en not_active IP Right Cessation
- 1969-07-09 NL NL6910521A patent/NL6910521A/xx unknown
- 1969-07-09 ES ES369313A patent/ES369313A1/en not_active Expired
- 1969-07-09 DE DE19691934845 patent/DE1934845A1/en active Pending
- 1969-07-09 BR BR21057769A patent/BR6910577D0/en unknown
- 1969-07-09 BE BE735849D patent/BE735849A/xx unknown
- 1969-07-29 FR FR6923382A patent/FR2012612A1/fr not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002052074A1 (en) * | 2000-12-21 | 2002-07-04 | Kimberly-Clark Worldwide, Inc. | Dual capillary spinneret with single outlet for production of homofilament crimp fibers |
| US6619947B2 (en) | 2000-12-21 | 2003-09-16 | Kimberly-Clark Worldwide, Inc. | Dual capillary spinneret with single outlet for production of homofilament crimp fibers |
| CN115012049A (en) * | 2022-05-19 | 2022-09-06 | 张家港江苏科技大学产业技术研究院 | Hollow fiber and processing equipment and processing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CH507382A (en) | 1971-05-15 |
| ES369313A1 (en) | 1971-06-01 |
| NL6910521A (en) | 1970-01-13 |
| DE1934845A1 (en) | 1970-01-15 |
| BR6910577D0 (en) | 1973-01-02 |
| BE735849A (en) | 1970-01-09 |
| FR2012612A1 (en) | 1970-03-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |