Synthetic fiber dyeing process
US5613986A · kind A · utility
4Cited by
11References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1996 |
| Grant date | Mar 25, 1997 |
| Priority date | — |
| Expiry date | May 22, 2016 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P3/26
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention is a method of producing a melt spun synthetic polymeric filament which has the superior deep dyeability thereof. The method includes the steps of application of a dye dispersed in water to the filaments during the drawing of the filament, and heat setting the surface dyed filaments to uniformly diffuse the dye throughout the total cross section of the filaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.