Method of dyeing wound up yarn
US4056860A · kind A · utility
1Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1976 |
| Grant date | Nov 8, 1977 |
| Priority date | — |
| Expiry date | Jan 22, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06B23/045
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Yarns spun by a fine spinning frame are rewound from the spun cops directly into cheeses on compressible bobbins which are contractable in the axial and radial directions. The bobbins with cheese thus wound up are piled one upon another on spindles of a carrier without interposing any spacer therebetween and compressed in the axial direction so that both ends of every bobbin come in the same planes with both ends of respective cheese. By dyeing the cheeses in this condition by a usual cheese dyeing method, a uniform dyeing without any dyeing unevenness can be effected in a greatly simplified process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.