Space dyed yarn
US6413632B1 · kind B1 · utility
6Cited by
18References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2001 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Mar 23, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2969
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention relates to a method and apparatus to produce space dyed yarns. A yarn sheet passes over a yarn-driven roll equipped with a digital sensor that tracks the position of the sheet as it then passes through a dyeing apparatus. A computer precisely controls the spray application of dyes at the desired locations on the length of the yarn sheet to produce space dyed POY and FOY yarns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.