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Stilbene triazine fluorescent whitening agent special for detergent and preparation method thereof

A stilbene triazine and fluorescent whitening agent technology, which is applied in detergent compounding agents, detergent compositions, chemical instruments and methods, and can solve the problems of complex preparation methods, high cost, and inconspicuous whitening effect , to achieve the effect of simple preparation method, reducing the amount of addition, and improving product competitiveness

Inactive Publication Date: 2020-05-01
山西晋光化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems that the existing fluorescent whitening agent for detergent has no obvious whitening effect, the preparation method is complicated, and the cost is high. its preparation method

Method used

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  • Stilbene triazine fluorescent whitening agent special for detergent and preparation method thereof
  • Stilbene triazine fluorescent whitening agent special for detergent and preparation method thereof
  • Stilbene triazine fluorescent whitening agent special for detergent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 prepares special-purpose stilbene triazine fluorescent whitening agent for detergent

[0032] 1) Weigh 18.45 g of raw materials cyanuric chloride, 18.5 g of 4,4'-diaminostilbene-2,2'-disulfonic acid, 7.67 g of aniline, 3.51 g of m-chloroaniline, and 12.6 g of diethanolamine;

[0033] 2) Add 168g of 10% soda ash solution into the reaction container, add 18.5g of 4,4'-diaminostilbene-2,2'-disulfonic acid into the container solution, and stir evenly to obtain 4,4'- An aqueous solution of sodium diaminostilbene-2,2'-disulfonate;

[0034] 3) Add 369g of ice water at 0°C to the reaction vessel, add 0.5g of emulsifier PEG-400 and 18.45g of cyanuric chloride to the reaction vessel in turn, stir and beat for 1 hour, then add the 4,4'- The aqueous solution of diaminostilbene-2,2'-sodium disulfonate is added to the reaction vessel at a uniform speed within 1.0 h, and then a 10% soda ash solution is added as an acid-binding agent to control the pH value of the reactio...

Embodiment 2

[0051] Embodiment 2 preparation special stilbene triazine fluorescent whitening agent for detergent

[0052] 1) Weigh 18.45 g of raw materials cyanuric chloride, 18.5 g of 4,4'-diaminostilbene-2,2'-disulfonic acid, 7.67 g of aniline, 3.51 g of m-chloroaniline, and 12.6 g of diethanolamine;

[0053] 2) Add 168g of 10% soda ash solution into the reaction container, add 18.5g of 4,4'-diaminostilbene-2,2'-disulfonic acid into the container solution, and stir evenly to obtain 4,4'- An aqueous solution of sodium diaminostilbene-2,2'-disulfonate;

[0054] 3) Add 369g of ice water at 0°C to the reaction vessel, add 0.5g of emulsifier PEG-400 and 18.45g of cyanuric chloride to the reaction vessel in turn, stir and beat for 1 hour, then add the 4,4'- The aqueous solution of diaminostilbene-2,2'-sodium disulfonate is added to the reaction vessel at a constant speed within 1.0 h, and then a 10% soda ash solution is added as an acid-binding agent to control the pH value of the reaction sy...

Embodiment 3

[0065] Embodiment 3 prepares special-purpose stilbene triazine fluorescent whitening agent for detergent

[0066] 1) Weigh 18.45 g of raw materials cyanuric chloride, 18.5 g of 4,4'-diaminostilbene-2,2'-disulfonic acid, 7.67 g of aniline, 3.51 g of m-chloroaniline, and 12.6 g of diethanolamine;

[0067] 2) Add 168g of 10% soda ash solution into the reaction container, add 18.5g of 4,4'-diaminostilbene-2,2'-disulfonic acid into the container solution, and stir evenly to obtain 4,4'- An aqueous solution of sodium diaminostilbene-2,2'-disulfonate;

[0068] 3) Add 369g of ice water at 0°C to the reaction vessel, add 0.5g of emulsifier PEG-400 and 18.45g of cyanuric chloride to the reaction vessel in turn, stir and beat for 1 hour, then add the 4,4'- The aqueous solution of diaminostilbene-2,2'-sodium disulfonate is added to the reaction vessel at a uniform speed within 1.0 h, and then a 10% soda ash solution is added as an acid-binding agent to control the pH value of the reactio...

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PUM

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Abstract

The invention relates to a stilbene triazine fluorescent whitening agent special for a detergent and a preparation method thereof, and aims at solving the technical problems that an existing fluorescent whitening agent for the detergent is not obvious in whitening effect, complex in preparation method and high in cost. According to the technical scheme, the stilbene triazine fluorescent whiteningagent special for the detergent is prepared from a component I, a component II and a component III according to the mass ratio of 6:3:1, wherein the component I is 4, 4'-bis[(4-anilino-6-hydroxydiethylamino-1, 3, 5-triazine-2-yl)amino]stilbene-2, 2'-disodium disulfonate, the component II is 4, 4'-bis[(4-anilino-4'-m-chloroanilino-6-hydroxydiethylamino-1, 3, 5-triazine-2-yl)amino]stilbene-2, and the component III is 4, 4'-bis[(4-m-chloroanilino-6-hydroxydiethylamino-1, 3, 5-triazine-2-yl)amino]stilbene-2. The fluorescent whitening agent prepared by the invention is low in cost and good in whitening effect, and can completely meet market requirements when being used alone.

Description

technical field [0001] The invention relates to a stilbene triazine fluorescent whitening agent for detergent and a preparation method thereof. Background technique [0002] At present, the main varieties of fluorescent whitening agents used for detergent whitening in the detergent industry are: CI fluorescent whitening agent 31#, CI fluorescent whitening agent 71#, CI fluorescent whitening agent 351#. From the use effect, CI fluorescent whitening agent 351# is the best, CI fluorescent whitening agent 71# is the second, CI fluorescent whitening agent 31# is the worst, CI fluorescent whitening agent 351# (E value 1105---1181 ) whitening effect is 2.3 times that of CI fluorescent whitening agent 71# (E value 370), and 2.7 times that of CI fluorescent whitening agent 31# (E value 370). From the point of view of the use effect, it is difficult for any kind of whitening agent to be used alone to meet the market's requirements for the whiteness of the detergent itself and the whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D3/34C11D3/42C09B67/22C09K11/06
CPCC09B67/0034C09K11/06C09K2211/1059C11D3/349C11D3/42
Inventor 王真祥董昕张红坡
Owner 山西晋光化工有限公司
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