Whitening and cationic modification method based on one-bath two-stage process and application
A cationic and cationic etherification agent technology, applied in the field of printing and dyeing, can solve the problems of affecting the dyeing effect of fibers, increasing the burden of environmental protection treatment, poor color fastness of dyeing, etc., and achieve the effect of improving dyeing effect, good dyeing effect and reducing content
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0051] Example 1
[0052] The whitening and modification of cotton fabric in this embodiment specifically includes the following steps:
[0053] (1) Add fiber and fabric in 40℃ water, add 15g / L sodium percarbonate, then add 2g / L sodium hydroxide, adjust pH=11-12, after heating to 70℃ at a rate of 3℃ / min , Add 15g / L of sodium percarbonate for whitening;
[0054] (2) After whitening, add 20g / L of 3-chloro-2-hydroxypropyltrimethylammonium chloride for modification. After cooling to 40℃, add oxalic acid with a mass percentage of 1%, and then After heating to 60°C at a rate of 3°C / min, after neutralization and deoxygenation, the whitening and cationic modification of the fabric is completed.
Example Embodiment
[0055] Example 2
[0056] The whitening and modification of the hemp cloth in this embodiment specifically includes the following steps:
[0057] (1) Add fibers and fabrics, 15g / L sodium percarbonate, and 1.5g / L sodium hydroxide in 38℃ water, adjust pH=11-12, heat up to 68℃ at a rate of 3.5℃ / min Then, add 15g / L of sodium percarbonate for whitening;
[0058] (2) After whitening, add 18g / L of 3-chloro-2-hydroxypropyltrimethylammonium chloride for modification. After cooling to 38°C, add oxalic acid with a mass percentage of 1.5%, and then After heating up to 58°C at a rate of 3.5°C / min, after neutralization and deoxygenation, the whitening and cationic modification of the fabric is completed.
Example Embodiment
[0059] Example 3
[0060] The whitening and modification of cotton fabric in this embodiment specifically includes the following steps:
[0061] (1) Add fiber and fabric in 42℃ water, add 15g / L sodium percarbonate, then add 2g / L sodium hydroxide, adjust pH=11.5, heat up to 68℃ at a rate of 4℃ / min, add 20g / L sodium percarbonate for whitening;
[0062] (2) After whitening, add 22g / L of 3-chloro-2-hydroxypropyltrimethylammonium chloride for modification. After cooling to 42°C, add oxalic acid with a mass percentage of 1%, and then After heating to 62°C at a rate of 4°C / min, after neutralization and deoxygenation, the whitening and cationic modification of the fabric is completed.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap