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Granular detergent composition containing hydrotropes

A cleaning composition, detergent technology, applied in the direction of detergent composition, surface active detergent composition, organic cleaning composition, etc., can solve the problem of not mentioning the solubility of low-temperature cleaning solution and the like

Inactive Publication Date: 2002-08-07
THE PROCTER & GAMBLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These patents therefore do not address the issue of solubility in low temperature wash solutions - a particularly common problem with detergents produced using non-spray drying methods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment I

[0076] Detergent compositions (A-C) were prepared following the agglomeration process described above. Compositions A and B are within the scope of the invention, composition C is not according to the invention, but is provided for comparison as described in Example II below. The relative proportions of compositions A-C in agglomerate form are listed in Table I below.

[0077] A B C surfactant component % (weight) % (weight) % (weight) C 14-15 Primary (carbon) alkyl carbonate 18.8 18.8 19.2C 12 -C 15 Alkyl Polyethoxy(1-3) Sulfate 10.6 10.6 10.8 Sulfosuccinate (Sodium) 2.0 - - Xylene Sulfonate (Sodium) - 2.0 - Builder Zeolite 4A 39.2 39.2 40.0 Carbonate (Sodium) 15.8 15.8 16.1 Additives Others (Water, Fragrance and Secondary Components) 13.6 13.6 13.9

[0078] 100.0 100.0 100.0

Embodiment II

[0080] This example illustrates the surprisingly improved solubility of the detergent compositions of the present invention. The specific method is to dissolve the standard dose composition A-C (1,170ppm) in a laundry solution with a water temperature of 10°C and a water hardness of 7 grains / gallon (grains / gallon) (Ca:Mg ratio of 3:1) . The water wash solution was continuously agitated at 75 rpm and samples of the wash solution were taken at various time intervals as shown in Table II below. To illustrate the improved solubility of the detergent compositions of the present invention, the amount of surfactant in the wash solution can be determined by using the well known "cat SO 3" titration technique. Titrated samples are taken from each wash solution containing one of the compositions A-C. Specifically, the determination of the amount of anionic surfactant in the wash solution is to filter the sample through 0.45 nylon filter paper to remove insoluble Then, titrate the filt...

Embodiment III

[0089] Bars D and E, suitable for hand washing fabric soil removal, were prepared by the standard extrusion process and included the ingredients listed in Table III below.

[0090] Table III

[0091] D E surfactant component % (weight) % (weight) C 14-15 Primary (carbon) alkyl carbonate 18.8 18.8C 12 -C 15 Alkyl Polyethoxy (1-3) Sulfate 10.6 10.6 Sulfosuccinate (Sodium) 2.0 -Xylene Sulfonate (Sodium) - 2.0 Builder Zeolite 4A 39.2 39.2 Carbonate (Sodium) 15.8 15.8 Additives and others (water, spices and secondary components) 13.6 13.6

[0092] 100.0 100.0

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PUM

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Abstract

A detergent composition in form of agglomerates is provided. The detergent composition contains from about 1 % to about 50 % by weight of a detersive surfactant system. The surfactant system itself includes, by weight of the surfactant system, at least about 30 % of a sulfated surfactant selected from alkyl sulfates, alkyl ethoxy sulfates, secondary alkyl sulfates and mixtures thereof. The detergent includes from about 1 % to about 50 % of a hydrotrope selected from the group consisting of sulfyl succinates, xylene sulfonates, cumene sulfonates and mixtures thereof. Also, the detergent composition includes at least about 1 % by weight of a detergency builder to enhance cleaning. The surfactant system, hydrotrope and builder are agglomerated to form detergent agglomerates which are substantially free of phosphates. The anionic surfactants in the detergent composition have significantly improved dissolution in aqueous laundering solutions, especially those kept at cold temperatures, namely 5 DEG C to 30 DEG C.

Description

field of invention [0001] The present invention generally relates to granular detergent compositions having improved solubility in low temperature wash solutions. More particularly, the present invention relates to detergent compositions high in sulfated surfactants selected from the group consisting of alkyl sulfates (also referred to herein as "AS"), alkyl sulfates (also referred to herein as "AS"), and hydrotropes. Ethyl ethoxy sulfate (also referred to herein as "AES"), secondary alkyl sulfate (also referred to herein as "SAS"), and mixtures thereof, the hydrotrope being selected from the group consisting of sulfonated succinates , xylene sulfonate, cumene sulfonate and mixtures thereof, which together enhance the washing solution at low temperature (such as 5°C to 30°C) and high hardness water (such as 7 grains / gallon (grains / gallon) gallon)] solubility. In order to produce a high density, compact detergent composition, the detergent of the present invention is in the f...

Claims

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Application Information

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IPC IPC(8): C11D1/14C11D1/29C11D1/37C11D1/52C11D3/08C11D3/10C11D3/32C11D3/34C11D17/06
CPCC11D1/14C11D17/065C11D1/37C11D1/525C11D1/146C11D1/29C11D3/3472C11D3/3418
Inventor R·A·施威夫特
Owner THE PROCTER & GAMBLE COMPANY
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