US3899562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of mixed yarns
Assignee: Vickers Zimmer AG
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Filing: 1973-10-23
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Granted: 1975-08-12
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Expires: 1993-10-23
Abstract
Abstract The invention relates to a process for the production of mixed yarns of synthetic polymers, especially of polyamide and polyester filaments produced according to the melt spinning process. The mixed yarns are prepared from extruded monofilament thread groups of different colors alternately disposed and subsequently gathered into a yarn with the monofilaments intermixed to provide a homogeneous cross section.
Inventors
- 👤 Anton Seidl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:40
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/08; D01D5/082; D01D4/00; D01D4/02; D02; D02G; D02G1/00; D02G1/18; D02G3/00; D02G3/22; D02G3/34; D02G3/346
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
164 words
A PROCESS FOR CONTINUOUSLY PRODUCING A HOMOGENEOUS, MIXED MULTICOLORED YARN WHICH COMPRISES THE SEPARATE STEPS OF: A. MELT SPINNING A COLORED, SYNTHETIC POLYAMIDE OR POLYESTER POLYMER THROUGH SPINNING NOZZLES AND SOLIDIFYING THE RESULTANT POLYMER TO PROVIDE A PLURALITY OF MONOFILAMENT GROUPS, B. MELT SPINNING A SECOND, DIFFERENT COLORED, SYNTHETIC POLYAMIDE OR POLYESTER THROUGH A SECOND DIFFERENT SET OF SPINNING NOZZLES AND SOLIDIFYING THE RESULTANT POLYMER TO PROVIDE A PLURALITY OF MONOFILAMENT GROUPS, C. GUIDING SAID MONOFILAMENT GROUPS OF DIFFERENT COLOR FROM THE DIFFERENT NOZZLES IN SEPARATE, SPACED, DIFFERENT COLORED PLANES UPON EMERGENCE FROM SAID SPINNING NOZZLES, THE FILAMENT GROUPS OF EACH OF SAID DIFFERENT COLORED PLANES BEING SPACED APART AND ALTERNATING WITH EACH OTHER, AND COMBINING THE MONOFILAMENT GROUPS OF EACH COLORED PLANE TO PROVIDE A PLANE OF ALTERNATELY SPACED APART, DIFFERENT COLORED, COMBINED MONOFILAMENT GROUPS D. SUBSQUENTLY GATHEREING SAID PLANE OF DIFFERENT COLORED, SPACED APART, ALTERNATING COMBINED MONOFILAMENT GROUPS TO PRODUCE A HOMOGENEOUS MULTICOLORED FILAMENT BUNDLE, AND, E. STRETCHING SAID HOMOGENEOUS FILAMENT BUNDLE.
Claim 2
Dependent Claim
164 words
A PROCESS FOR CONTINUOUSLY PRODUCING A HOMOGENEOUS, MIXED MULTICOLORED YARN WHICH COMPRISES THE SEPARATE STEPS OF: A. MELT SPINNING A COLORED, SYNTHETIC POLYAMIDE OR POLYESTER POLYMER THROUGH SPINNING NOZZLES AND SOLIDIFYING THE RESULTANT POLYMER TO PROVIDE A PLURALITY OF MONOFILAMENT GROUPS, B. MELT SPINNING A SECOND, DIFFERENT COLORED, SYNTHETIC POLYAMIDE OR POLYESTER THROUGH A SECOND DIFFERENT SET OF SPINNING NOZZLES AND SOLIDIFYING THE RESULTANT POLYMER TO PROVIDE A PLURALITY OF MONOFILAMENT GROUPS, C. GUIDING SAID MONOFILAMENT GROUPS OF DIFFERENT COLOR FROM THE DIFFERENT NOZZLES IN SEPARATE, SPACED, DIFFERENT COLORED PLANES UPON EMERGENCE FROM SAID SPINNING NOZZLES, THE FILAMENT GROUPS OF EACH OF SAID DIFFERENT COLORED PLANES BEING SPACED APART AND ALTERNATING WITH EACH OTHER, AND COMBINING THE MONOFILAMENT GROUPS OF EACH COLORED PLANE TO PROVIDE A PLANE OF ALTERNATELY SPACED APART, DIFFERENT COLORED, COMBINED MONOFILAMENT GROUPS D. SUBSQUENTLY GATHEREING SAID PLANE OF DIFFERENT COLORED, SPACED APART, ALTERNATING COMBINED MONOFILAMENT GROUPS TO PRODUCE A HOMOGENEOUS MULTICOLORED FILAMENT BUNDLE, AND, E. STRETCHING SAID HOMOGENEOUS FILAMENT BUNDLE.
Claim 3
Dependent Claim
26 words
A process according to claim 1 wherein each spinning nozzle is positioned on a rectangular nozzle plate and said thread groups have a rectangular cross section.
Claim 4
Dependent Claim
16 words
The process of claim 1 wherein the resultant stretched homogeneous filament bundle is texturized after stretching.
Claim 5
Dependent Claim
31 words
The process of claim 1 wherein the monofilaments from one of said sets of spinning nozzles has a higher thermal shrinkage than the monofilaments from the other set of spinning nozzles.
Claim 6
Dependent Claim
37 words
The process of claim 1 wherein such monofilament groups are guided as substantially horizontal, parallel planes upon emergence from said nozzles and the plane of alternating spaced apart, different colored combined monofilament groups is a vertical plane.
Claim 7
Dependent Claim
31 words
The process of claim 1 wherein the monofilaments from one of said sets of spinning nozzles has a different capillary diameter than the monofilaments from the other set of spinning nozzles.
Claim 8
Dependent Claim
31 words
The process of claim 1 wherein the monofilaments from one of said sets of spinning nozzles has a different capillary profile than the monofilaments from the other set of spinning nozzles.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |