Methods, processes, and apparatuses for producing dyed and welded substrates
US10011931B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2017 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Aug 26, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P3/6025
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A dyeing and welding process may be configured to convert a substrate into a welded substrate having at least some color imparted thereto via a dye and/or coloring agent by applying a process solvent having a dye and/or coloring agent therein to the substrate, wherein the process solvent interrupts one or more intermolecular force between one or more component in the substrate. The substrate may be configured as a natural fiber, such as cellulose, hemicelluloses, and silk. The process solvent may include a binder, such as dissolved biopolymer (e.g., cellulose). After application of a process solvent comprised of a dye and/or coloring agent, the substrate may be exposed to a second application of a process solvent comprised of a binder, which second application may occur before or after a process temperature/pressure zone, process solvent recovery zone, and/or drying zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.