Environmentally-friendly paste discharge agent for textile printing and preparation method thereof
US9375687B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2012 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Jul 17, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K23/54
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention discloses an environmentally-friendly pasty discharge agent for textile printing and a method for preparing the environmentally-friendly pasty discharge agent. The environmentally-friendly pasty discharge agent for textile printing is formed by the following raw materials according to part by weight: decamethylcyclopentasiloxane: 30-60 parts; thiourea dioxide: 40-70 parts; surfactant: 1-3 parts; and glycerol: 3-6 parts. Decamethylcyclopentasiloxane is put into a ball mill, a surfactant is added into the ball mill to make the decamethylcyclopentasiloxane dispersed or dissolved uniformly and then stirred uniformly, and then thiourea dioxide is added into the ball mill and ground together for 1-3 hours. In the invention, the special liquid compound decamethylcyclopentasiloxane does not chemically react with the thiourea dioxide; in addition, it isolates the thiourea dioxide from outside water and air, thus increasing the stability of the thiourea dioxide. The discharge effect is excellent, the defects of low dissolvability, poor dispersion uniformity in the discharge paste, poor net permeability and insufficient discharge effect of the common thiourea dioxide as the disc…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.