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Granulated bleaching activator composition

A technology of bleaching activators and compositions, applied in detergent compositions, non-surface-active detergent compositions, chemical instruments and methods, etc., capable of solving problems such as difficulty in achieving better results

Active Publication Date: 2013-03-13
ZHEJIANG JINKE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional bleach activators exist in the form of a single type of activator, and it is difficult to achieve good results in daily washing by using hydrophilic or hydrophobic water activators alone

Method used

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  • Granulated bleaching activator composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 600 g of sodium nonanoyloxybenzenesulfonate and 400 g of tetraacetylethylenediamine were fully mixed in a mixer, and then extruded through a small twin-screw extruder (equipped with a 1 mm extrusion mesh). The extrudate was cut with a rotary cutter at a cutting frequency of 1200 revolutions per minute. After cutting, the granules are sized with a granulator, and sieved with a target grading screen of 0.5 mm to 1.6 mm to obtain a granular bleach activator composition product. After sieving, the product yield is 75%.

[0021] Bleaching activation efficiency comparison:

[0022] Weigh standard base powder (formulation is 15 parts of sodium alkylbenzene sulfonate, 17 parts of sodium tripolyphosphate, 10 parts of sodium silicate, 3 parts of sodium carbonate, 1 part of sodium carboxymethyl cellulose) 0.516g, sodium percarbonate 0.06g, 0.024g of the above-mentioned bleach activator composition is made into 300ml solution;

[0023] Control group: (1) Standard base powder 0.5...

Embodiment 2

[0028] 400 g of sodium nonanoyloxybenzenesulfonate, 500 g of tetraacetylethylenediamine and 100 g of polyethylene glycol were fully mixed in a mixer, and the extrusion and granulation were the same as in Example 1. The granular bleach activator composition product was obtained, and the yield after sieving was 80%.

[0029] The comparative test of bleaching activation efficiency is the same as that in Example 1.

[0030] The washing results are shown in the table below (washing temperature 25°C):

[0031] activator

[0032] The bleach activator composition is the product obtained in Example 2.

Embodiment 3

[0034] 300g of sodium nonanoyloxybenzenesulfonate, 600g of tetraacetylethylenediamine, 50g of sodium carboxymethylcellulose, 80g of pure water, and 50g of sodium sulfate are fully mixed in a mixer, and extrusion and granulation are the same as in Example 1. . The granular bleach activator composition product was obtained, and the product yield after sieving was 78%.

[0035] The comparative test of bleaching activation efficiency is the same as that in Example 1.

[0036] The washing results are shown in the table below (washing temperature 25°C):

[0037] activator

[0038] The bleach activator composition is the product obtained in Example 3.

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Abstract

The invention discloses a granulated bleaching activator composition, which can greatly improve the bleaching ability of a detergent containing peroxide, lead the detergent to be also capable of playing function under low temperature, and can be extruded directly and formed under the condition without a binder or very little amount of the binder. The composition comprises: (a) the general formula of alkyl-acyloxy benzene sulfonate is as follows, wherein R is C9-C12 alkyl, and M is alkali metal; and (b) tetraacethyl ethene diamine. The bleaching activator composition has strong particle toughness, is difficult to be crushed, saves the drying link in the traditional granulation process, and saves the energy.

Description

technical field [0001] The present invention relates to a composition for activating bleach, particularly a granular bleach activator composition. Background technique [0002] Inorganic peroxide bleaches are widely used as a detergent builder. Adding inorganic peroxide bleach to your detergent will remove stains and grime more effectively. However, the bleaching ability of this bleaching agent varies significantly with temperature. They are only effective in solutions with a temperature higher than 60°C. As the solution temperature continues to decrease below 60°C, their effectiveness is also getting lower and lower. [0003] Using a peroxide bleach activator will keep the bleach working even at low temperatures. [0004] Alkanoyloxybenzenesulfonate (NOBD) and tetraacetylethylenediamine (TAED) are commonly used bleach activators. Tetraacetylethylenediamine is mainly used in detergent formulations in Europe, while alkanes are mainly used in America and Japan. Acyloxybenze...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D7/54C11D7/18C11D7/42
Inventor 魏一帆胡根良章小兵
Owner ZHEJIANG JINKE CHEM