Detergent composition

A technology of composition and detergent granules, applied in the directions of detergent composition, surface active detergent composition, detergent compounding agent, etc., can solve the problems such as the inability to achieve uniform mixture of detergent ingredients and fatty acids, and inhomogeneous mixture of materials.

Inactive Publication Date: 2013-03-27
UNILEVER NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Application of relatively low amounts of molten fatty acid sprayed onto the base powder bed may result in an unevenly mi...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Embodiment 1: prepare the granule of the present invention.

[0061] 500 grams of prefabricated Mg(LAS) 2 Powder (having an average particle size of 10 microns and containing 85% Mg(LAS) 2 , and the remaining 15% is approximately 7.5% each of water and MgCO 3 ) in a mixing device (from Sigma granulator) and mixed with 15 g of lauric acid powder (s.d. Fine Chemicals Mumbai, 99% pure, average particle size 50 microns) for 2 minutes. Add 30 grams of water and mix for an additional 2 minutes.

[0062] The granules were collected and sieved, wherein the fraction that remained on the 1 mm sieve but passed through the 2 mm sieve was collected.

[0063] The same granules were prepared without the addition of fatty acid in a comparative example.

Embodiment 2

[0064] Embodiment 2: dissolution test

[0065] Granules according to Example 1 were used. Without stirring, in a 500 ml beaker containing 1.5 g / L of the particles and 1.5 g / L soda (Na 2 CO 3 ) to the detergent composition by adding water at 25°C. Samples were taken at 5, 10 and 15 minutes.

[0066] Surfactant concentration was determined by Hyamine titration as commonly used in the art. The surfactant dissolution in % by weight is given in the table below.

[0067] Dissolution results

[0068] experiment Compared time (min) %dissolution (by wt) % Dissolution (by wt) 5 13.6 26.4 10 56.4 30 15 63.4 57.3

[0069] The table above shows that the detergent compositions of the present invention reach high surfactant concentrations in water faster and to higher concentrations.

Embodiment 3

[0070] Example 3: Dissolution test of granules after storage

[0071] The granules according to Example 1 were used, but now a 15 gram sample of granules had been stored at 40° C. for 3 months in a sealed airtight plastic bag.

[0072] In a 500 mL beaker without stirring, in a 500 mL beaker containing 1.5 g / L stored pellets and 1.5 g / L soda (Na 2 CO 3 ) to the detergent composition by adding water at 25°C. Samples were taken at 5, 10 and 15 minutes.

[0073] Surfactant concentration was determined by Hyamine titration as commonly used in the art. The surfactant dissolution in % by weight is given in the table below.

[0074] Dissolution results after storage

[0075] experiment Compared time (min) % Dissolution (by wt) % Dissolution (by wt) 5 12.1 5.2 10 28.8 17.3 15 65.7 38.1

[0076] The table above shows that the detergent compositions of the present invention reach high surfactant concentrations in water faster and reac...

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PUM

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Abstract

The present invention is in the field of detergent powders. The invention particularly relates to detergent granules exhibiting improved dissolution behaviour for faster release of active to a wash liquor. A detergent particle that provides further improved dissolution, even after storage, remains to be desired. This applies not only to detergent powder composition, but also to compositions in tablet form. It is an object of the present invention to provide a detergent composition having enhanced dissolution properties. Surprisingly it has been found that a granule comprising a mixture of a magnesium salt of linear alkylbenzene sulphonic acid (Mg(LAS)

Description

field of invention [0001] The present invention is in the field of detergent powders. In particular the invention relates to detergent granules exhibiting improved dissolution properties for faster release of actives into the wash liquor. Background of the invention [0002] Today's laundry products typically contain particles comprising surfactants and optionally other ingredients. [0003] Granules are generally more storage stable and easier to handle than traditional powders. In addition, granulation helps to improve the flow characteristics of the primary particulate material. Hygroscopic materials have a very strong tendency to agglomerate when stored in powder form. This caking tendency of hygroscopic materials can be greatly reduced by granulation. Dense particles take up less space and are therefore easier to handle and transport. Such detergent granules have been used in laundry products for several years. [0004] WO 98 / 04672 discloses a process for the prep...

Claims

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Application Information

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IPC IPC(8): C11D1/22C11D3/20C11D17/06
CPCC11D1/22C11D3/2079C11D17/06
Inventor R.S.戈亚尔S.S.希巴雷
Owner UNILEVER NV
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