Washing composition

a technology of composition and wash, applied in the field of washing composition, can solve the problems of affecting lathering performance, relatively dense materials, and difficult to achieve and achieve the effect of effective deposition of solid active agents on the surfa

Inactive Publication Date: 2002-01-03
HELENE CURTIS INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Difficulties arise in achieving effective deposition of solid active agents onto a surface such as skin or hair when the solid active agent is delivered by means of incorporation into rinse-off compositions, typically hair and body shampoos, conditioners and the like.
There remains the problem, however, that the typical, preferred types of antimicrobial (such as sulphur, selenium disulphide and heavy metal salts of pyridinethione) ar

Method used

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  • Washing composition

Examples

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Effect test

example 1

Preparation of an Emulsion of Silicone Droplets Containing the Solid Antimicrobial Active Zinc Pyrithione in the Silicone Chase

[0089] 5 g of Zinc Pyrithione (Aldrich, dry powder) was mixed with 15 g of silicone oil (100 Cs, Dow Corning) to form a creamy viscous liquid. To this mixture, a further 30 g of high viscosity silicone oil (60,000 Cs, Dow Corning) was added and the mixture stirred thoroughly.

[0090] 150 g of SLES-2EO (26 %) was stirred, and 11 g of the Zinc Pyrithione / silicone oil mixture prepared as described above was added. The mixture was stirred until a homogeneous dispersion was formed. To this was added 11 g of a 10% Carbopol gel and the mixture again stirred until homogeneous.

[0091] Observation under optical microscopy showed that the product comprised an emulsion of silicone oil droplets, with Zinc Pyrithione predominantly encased within the silicone oil droplets.

example 2

Preparation of a Shampoo Composition

[0092] The emulsion of Example 1 was formulated into a shampoo composition by mixing with a solution of SLES-2EO, JAGUAR C13S and formalin to give a shampoo having the composition shown in the Table below, in which all amounts are expressed in % by weight of the total shampoo composition.

1 TABLE Ingredient % by weight Zinc Pyrithione 0.55 silicone oil (100 Cs) 1.65 silicone oil (60,000 Cs) 3.30 SLES-2EO 16.00 JAGUAR C13S 0.30 Carbopol 0.55 Formalin 0.10 Water to 100

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Abstract

The invention provides a washing composition for washing a surface to deposit thereon a solid active agent, the washing composition comprising an emulsion of silicone droplets, the silicone droplets comprising: (a) a continuous silicone phase, and; (b) a dispersed phase of solid particulate active agent. Preferably the solid active agent is a solid antimicrobial such as zinc pyridinethione.

Description

[0001] The present invention relates to washing compositions, more particularly to washing compositions for washing a surface to deposit thereon a solid active agent, such as particles of a solid antimicrobial substance. Such washing compositions include compositions for washing hair or skin, such as hair shampoos, conditioners, body shampoos, shower gels, facial washing compositions, bar soaps and bath foams. They may also include compositions for household cleaning, such as hard surface-cleaners.BACKGROUND AND PRIOR ART[0002] Difficulties arise in achieving effective deposition of solid active agents onto a surface such as skin or hair when the solid active agent is delivered by means of incorporation into rinse-off compositions, typically hair and body shampoos, conditioners and the like. Frequently, such active agents are preferentially rinsed away from the intended site of deposition, rather than being deposited thereat.[0003] U.S. Pat. No. 5,037,818 describes that the presence...

Claims

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Application Information

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IPC IPC(8): A61K8/34A61K8/36A61K8/00A61K8/46A61K8/49A61K8/58A61K8/64A61K8/73A61K8/89A61K8/891A61K9/107A61Q5/00A61Q5/02A61Q19/10C08L83/04C11D3/20C11D3/37C11D3/48C11D17/00C11D17/08
CPCA61K8/463A61K8/4933A61K8/737A61K8/891A61K2800/5426A61Q5/02A61Q17/005C11D3/373C11D3/48C11D17/0013Y10S514/938
Inventor CAREW, PETER SIMONGALLAGHER, PETERKONIDARIS, PETER CHRISTOPHER
Owner HELENE CURTIS INDS
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