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Double-reaction-active-group cationic modifier, and preparation method and application thereof

A cationic modifier, dual-reactive technology, applied in the field of textile printing and dyeing, can solve the problems of peculiar smell, not resistant to alkaline washing, etc., and achieve the effect of solving peculiar smell and good dyeing performance

Active Publication Date: 2014-10-08
GUANGDONG ESQUEL TEXTILES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the defects in the above-mentioned prior art, the purpose of the present invention is to propose a double-reactive cationic modifier and its preparation method and application, which can solve the problem of peculiar smell, non-alkaline washing resistance while ensuring good dyeing performance. The problem

Method used

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  • Double-reaction-active-group cationic modifier, and preparation method and application thereof
  • Double-reaction-active-group cationic modifier, and preparation method and application thereof
  • Double-reaction-active-group cationic modifier, and preparation method and application thereof

Examples

Experimental program
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Embodiment 1

[0039] This embodiment provides a method for preparing a double reactive group cationic modifier, including the following process:

[0040] Add dimethylamine solution to the synthesis kettle equipped with a reflux condenser, start the agitator, slowly drop 2.1 times the molar amount of epichlorohydrin into the synthesis kettle at room temperature, and continue the reaction for 6 hours after the drop is completed, stop reaction.

[0041] Then the obtained product is subjected to vacuum distillation or solvent extraction to remove residual unreacted compounds and by-products as much as possible. The temperature of the system is controlled at about 30°C and the pressure is at 1-4KPa. The volatile substances are collected with a dry ice collector until the product solution Concentrate to a thick paste. The resulting thick slurry is a double-reactive cationic modifier, as shown in formula Ⅰ-1:

[0042]

[0043] The product obtained above is used for cellulose fiber modification ...

Embodiment 2

[0046] This embodiment provides a method for preparing a double reactive group cationic modifier, including the following process:

[0047] Add methylethylamine solution into the synthesis kettle equipped with a reflux condenser, start the agitator, and slowly drop 2.1 times the molar amount of epichlorohydrin into the synthesis kettle at room temperature. After the drop is completed, continue the reaction for 8 hours and stop the reaction .

[0048] Then the obtained product is subjected to vacuum distillation or solvent extraction to remove residual unreacted compounds and by-products as much as possible. The temperature of the system is controlled at about 30°C and the pressure is at 1-4KPa. The volatile substances are collected with a dry ice collector until the product solution Concentrate to a thick paste. The resulting thick slurry is a double-reactive cationic modifier, as shown in formula Ⅰ-2:

[0049]

[0050] The product obtained above is used for cellulose fib...

Embodiment 3

[0053] This embodiment provides a method for preparing a double reactive group cationic modifier, including the following process:

[0054] Add methylbenzylamine solution to the synthesis kettle equipped with a reflux condenser, start the agitator, and slowly drop 2.2 times the molar amount of epichlorohydrin into the synthesis kettle at 70°C, and continue the reaction for 12 hours after the drop is completed , stop responding.

[0055] Then the obtained product is subjected to vacuum distillation or solvent extraction to remove residual unreacted compounds and by-products as much as possible. The temperature of the system is controlled at about 30°C and the pressure is at 1-4KPa. The volatile substances are collected with a dry ice collector until the product solution Concentrate to a thick paste. The resulting thick slurry is a double-reactive cationic modifier, as shown in formula Ⅰ-3:

[0056]

[0057] The product obtained above is used for cellulose fiber modificatio...

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Abstract

The invention provides a preparation method for a double-reaction-active-group cationic modifier. The preparation method comprises: reacting a solution containing a compound NHR2R2 with a solution containing a compound R3X and / or a solution containing a compound R4X through refluxing at a temperature of 100 DEG C or less for 1 h-32 h, so as to obtain a crude product, and purifying to obtain the double-reaction-active-group cationic modifier. The invention also provides the double-reaction-active-group cationic modifier obtained by employing the above preparation method and application of the modifier. The double-reaction-active-group cationic modifier is capable of guaranteeing good dyeing performance, and also solves the problems of peculiar smell and irresistance to alkali water washing.

Description

technical field [0001] The invention relates to a cationic modifier with double reactive groups and its preparation method and application, in particular to a cationic modifier with high fastness for the modification of cellulose fibers and further used for dyeing or adsorption and its preparation method and application. The preparation method belongs to the technical field of textile printing and dyeing. Background technique [0002] It is known that cationic modifiers have strong adsorption capacity for anionic dyes, and are widely used in the modification of cellulose fibers and further used for dyeing or adsorption, and at the same time, the modified fabrics have excellent bactericidal properties. At present, cationic modifiers commonly used in the textile field include macromolecular and small molecular cationic modifiers, among which macromolecular cationic modifiers are mainly polyamine polymeric macromolecular modifiers, but because of their relatively large molecula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D303/36C07D301/27C07D405/12C07D251/44D06M13/463D06M11/38D06M101/06
CPCC07D251/44C07D301/27C07D303/36C07D405/12D06M11/38D06M13/463D06M2101/06
Inventor 徐伟杰周立明张玉高
Owner GUANGDONG ESQUEL TEXTILES CO LTD