Disperse dyed polyethylene and process
US6562081B2 · kind B2 · utility
2Cited by
11References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2001 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Jun 21, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P3/794
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disperse dyed polyethylene fibers obtained by either melt spinning or flash spinning and materials produced from said fibers are provided. The process utilizes dye blends containing at least three and, more preferably, four or more disperse dyes selected from a primary color group. The individual dyes are utilized at a concentration of at lest 75% but less than 100% of the determined maximum concentration which produces crocking. HDPE and LLDPE materials are effectively dyed using disperse dye blends formulated by the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.