Textile dyeing using nanocellulosic fibers
US9506187B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 10, 2015 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Jul 10, 2035 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P1/50
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed are various embodiments for dyeing a material using a dyed nanocellulose dispersion, thereby reducing or eliminating the need for water in dyeing materials, such as fabrics and textiles. A dyed nanocellulose dispersion or gel may be prepared from wood pulp fibers using a homogenizer and a dye, wherein the dyed nanocellulose dispersion comprises nanosized cellulose fibrils. The dyed nanocellulose gel may comprise an approximate concentration of 0.5% to 6%. The dyed nanocellulose dispersion may be applied to a material, such as a fabric or textile material. The fabric or textile material can be dried resulting in a dyed material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.