Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-temperature alkali-resisting penetrant and preparation method thereof

An alkali-resistant penetrating agent and high-temperature technology, which is applied in textiles, papermaking, fiber treatment, etc., can solve problems such as difficult penetration, sticky lye, and mercerizing on the surface, and achieve uniform mercerizing treatment, clarification of lye, and uniform mercerizing effect Effect

Active Publication Date: 2015-01-07
ZHEJIANG HUANGMA TECH
View PDF6 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional mercerizing process is room temperature mercerizing, the lye is more viscous, not easy to penetrate, and it is easy to cause surface mercerizing, and it is more difficult to obtain a uniform and thorough effect on thick and dense fabrics
Hot alkali permeability is good, but the expansion is poor, and ordinary penetrants are easily hydrolyzed when encountering alkali at high temperature

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: the preparation of methanol polyoxyethylene ether

[0021] Condensation reaction: Add 64.0g of methanol and 3.84g of basic catalyst into a 2.0L pressure reactor, replace the air with nitrogen for 3 times, wait until the temperature of the kettle rises to 125-130°C, start feeding 704.0g of ethylene oxide for 8.0 hours After passing through, continue to react for 0.5 hour. After the reaction was completed, it was cooled and the pressure was released to obtain 771.84 g of an intermediate mainly composed of methanol polyoxyethylene ether. The molar ratio of methanol to ethylene oxide in the above reaction was 1:8.

Embodiment 2

[0022] Embodiment 2: the preparation of methanol polyoxyethylene ether

[0023] Condensation reaction: Add 32.0g of methanol and 0.45g of basic catalyst into a 2.0L pressure reactor, replace the air with nitrogen for 3 times, wait until the temperature of the kettle rises to 155-160°C, start to feed 528.0g of ethylene oxide for 3.0 hours After passing through, continue to react for 0.5 hour. After the reaction is complete, cool down and release the pressure. Obtained 604.48 grams of intermediates with methanol polyoxyethylene ether as the main component, and the molar ratio of methanol to ethylene oxide in the above reaction was 1:12.

Embodiment 3

[0024] Example 3: Preparation of methanol polyoxyethylene ether

[0025] Condensation reaction: Add 64.0g of methanol and 2.83g of basic catalyst into a 2.0L pressure reactor, replace the air with nitrogen for 3 times, wait until the temperature of the kettle rises to 145-150°C, start to feed 880.0g of ethylene oxide for 7.0 hours After passing through, continue to react for 0.5 hour. After the reaction is complete, cool down and release the pressure. Obtain 844.94 grams of intermediates with methanol polyoxyethylene ether as the main component, and the molar ratio of methanol to ethylene oxide in the above reaction is 1:10.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a high-temperature alkali-resisting penetrant and a preparation method thereof and belongs to the technical field of the printing and dyeing auxiliaries. The high-temperature alkali-resisting penetrant is a complex of methanol polyoxyethylene ether phosphate and di-2-ethxlexyl maleate sulfonate in the mass ratio of (5-10) to 1. The high-temperature alkali-resisting penetrant can directly take part in a boiling-off step to shorten the process route and reduce the cost; the high-temperature alkali-resisting penetrant has the excellent high-temperature alkali-resisting penetrability, and is capable of reducing the weft-direction shrinkage rate of fabrics and even in mercerization.

Description

technical field [0001] The invention relates to a high-temperature alkali-resistant penetrating agent and a preparation method thereof, belonging to the technical field of printing and dyeing auxiliaries. Background technique [0002] Mercerizing is a key process in the printing and dyeing process, which can well change the properties of cotton fibers, improve the dimensional stability of finished products and the absorption capacity of dyes, and is an important link before fabric dyeing and finishing. The conventional mercerizing process is room temperature mercerizing. The lye is viscous and difficult to penetrate, which can easily cause surface mercerizing. It is even more difficult to obtain a uniform and thorough effect on thick and dense fabrics. Hot alkali has good permeability, but poor expansion, and common penetrants are easily hydrolyzed when encountering alkali at high temperature. [0003] Based on this, make your own case. Contents of the invention [0004]...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D06M15/53D06M13/256C08G65/327C08G65/28
Inventor 高洪军金一丰万庆梅颜吉校叶志勇
Owner ZHEJIANG HUANGMA TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com