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Stilbene bis triazine liquid whitener and preparation method thereof

A bistriazine type and stilbene technology, which is applied in the direction of washing compositions containing brighteners, chemical instruments and methods, soap detergents and other compounding agents, can solve the problems of fabric fiber whitening, poor water solubility, poor cost performance, High price and other problems, to achieve the effect of improving comprehensive decontamination performance, strong decontamination ability, and reducing pollution

Inactive Publication Date: 2017-01-25
山西青山化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price of CBS-X fluorescent whitening agent is relatively high, and the cost performance of fabric fiber whitening is not as good as that of fluorescent whitening agent C.I.71.
However, the fluorescent whitening agent C.I.71 has poor water solubility, and it is difficult to directly add it to laundry detergent. There is no report of the liquid formulation patent of this brightening agent. Therefore, a liquid formulation fluorescent whitening agent C.I.71 dye with stable quality is prepared. , has important practical significance

Method used

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  • Stilbene bis triazine liquid whitener and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of stilbene bistriazine type liquid whitening agent of the present embodiment has the following composition:

[0028] Fluorescent whitening agent C.I.71: 5 parts

[0029] Ethylene glycol: 20 parts

[0030] PEG-300: 3 servings

[0031] AEO-9: 0.5 parts

[0032] Urea: 1 part

[0033] Sodium citrate: 2.5 parts

[0034] Preservatives: 0.03 parts

[0035] Deionized water: 18 parts.

[0036] A method for preparing the described stilbene bistriazine type liquid whitening agent according to the present embodiment, which comprises the following preparation steps:

[0037] 1) Add 5 parts of fluorescent whitening agent C.I.71 to 20 parts of ethylene glycol and 3 parts of PEG-300, stir and heat to 60°C to dissolve the fluorescent whitening agent in the alcohol solvent;

[0038] 2) Add 0.5 parts of AEO-9 to 18 parts of deionized water, heat and stir to fully dissolve the surfactant;

[0039] 3) Add 2) to 1), then add 2.5 parts of sodium citrate, stir until the system ...

Embodiment 2

[0041] A kind of stilbene bistriazine type liquid whitening agent of the present embodiment has the following composition:

[0042] Fluorescent whitening agent C.I.71: 15 parts

[0043] Ethylene glycol: 37 parts

[0044] PEG-300: 5 parts

[0045] AEO-9: 2 servings

[0046] Urea: 3 parts

[0047] Sodium citrate: 3 parts

[0048] Preservatives: 0.05 parts

[0049] Deionized water: 25 parts.

[0050] A method for preparing the described stilbene bistriazine type liquid whitening agent according to the present embodiment, which comprises the following preparation steps:

[0051] 1) Add 15 parts of fluorescent whitening agent C.I.71 to 37 parts of ethylene glycol and 5 parts of PEG-300, stir and heat to 65°C to dissolve the fluorescent whitening agent in the alcohol solvent;

[0052] 2) Add 2 parts of AEO-9 to 18 parts of deionized water, heat and stir to fully dissolve the surfactant;

[0053] 3) Add 2) to 1), then add 3 parts of sodium citrate, stir until the system disso...

Embodiment 3

[0055] A kind of stilbene bistriazine type liquid whitening agent of the present embodiment has the following composition:

[0056] Fluorescent whitening agent C.I.71: 15 parts

[0057] Ethylene glycol: 40 parts

[0058] PEG-300: 5 parts

[0059] TW-80: 2.5 parts

[0060] Urea: 3 parts

[0061] Sodium citrate: 2 parts

[0062] Preservatives: 0.05 parts

[0063] Deionized water: 10 parts.

[0064] A method for preparing the described stilbene bistriazine type liquid whitening agent according to the present embodiment, which comprises the following preparation steps:

[0065] 1) Add 15 parts of fluorescent whitening agent C.I.71 to 40 parts of ethylene glycol and 5 parts of PEG-300, stir and heat to 67°C to dissolve the fluorescent whitening agent in the alcohol solvent;

[0066] 2) Add 2.5 parts of TW-80 to 10 parts of deionized water, heat and stir to fully dissolve the surfactant;

[0067] 3) Add 2) to 1), then add 2 parts of sodium citrate, stir until the system dissol...

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Abstract

The invention belongs to the technical field of liquid whiteners, and particularly relates to a stilbene bis triazine liquid whitener and a preparation method thereof. The liquid whitener composition is composed of a fluorescent whitening agent C.I.71, polylol, polyethyleneglycol, a non-polyethyleneglycol nonionic surfactant, a cosolvent, sodium citrate, a preservative and deionized water. The composition is a transparent liquid with lower viscosity, can be stably stored at -15-45 DEG C for 6 months without stratification, caking or precipitation, can be easily added into a laundry detergent, and has obvious effects on enhancing the comprehensive detergency of the laundry detergent and especially whitening the white textiles.

Description

technical field [0001] The invention belongs to the technical field of liquid whitening agents, and in particular relates to a stilbene bistriazine type liquid whitening agent and a preparation method thereof. Background technique [0002] Fluorescent whitening agent C.I.71 (CXT) is a kind of stilbene bistriazine fluorescent whitening agent. Because of its strong affinity with cellulose and good whitening effect, it has been widely used in washing and printing and dyeing industries. . However, the molecular structure of this compound only contains two sulfonic acid groups, which is difficult to dissolve in water. The resulting product is powdery (or granular), and there is dust pollution during use, which is harmful to the environment and the health of operators. It is harmful, and it is not easy to realize automatic addition, and more importantly, it cannot be added to laundry detergent products. Fluorescent whitening agent is an auxiliary component in synthetic detergent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09K11/06C11D3/42C11D7/54C11D9/44
CPCC09B67/0033C09K11/06C11D3/42C11D9/448
Inventor 贾淑萍王刚
Owner 山西青山化工有限公司
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