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Low density detergent bar composition

A detergent block and composition technology, which can be applied to detergent compositions, detergent materials, soap detergents and other compounding agents, etc., can solve the problems of low air, low density, increased process cost, etc.

Inactive Publication Date: 2004-06-02
UNILEVER NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Entrainment of air prior to molding limits formulation flexibility and requires purpose-built equipment to provide mechanical agitation for whipping air which would add cost to the process
The amount of entrained air is also low so that detergent bars with ultra-low density cannot be obtained

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0045] i Method of preparing inflatable blocks:

[0046]The process consists of preparing a pourable melt of the composition, which is then cast into the desired shape, followed by dehydration to achieve air entrapment.

[0047] Table 1a shows the composition (in % by weight) at the time of casting, before dehydration, while Table 1b shows the composition (in % by volume) of the corresponding cast dewatered blocks. The composition of the cast dewatered blocks is expressed in % by volume, since the main component of the blocks is air. The compositions shown in Table 1b were prepared by the following methods.

[0048] A mixture of soap, non-soap surfactant and water (for all examples except Example 5a where only a soap-water mixture was employed) was added to a two liter volume with the composition (% by weight) shown in Table 1a in a round bottom flask. The mixture was stirred and heated to about 80°C with a hot water bath to obtain a pourable melt. The melt was poured into...

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Abstract

Aerated, ultra low-density cast-dehydrated syndet detergent bars for use in personal wash, fabric wash and hard surface cleaning. A process for preparing aerated, ultra low-density cast-dehydrated detergent bars wherein the air is entrained in the bars after rigidification and shaping the product is also provided.

Description

Technical field: [0001] The present invention relates to aerated ultra low density cast dewatered detergent bars. In particular the present invention relates to a method of making an aerated ultra-low density cast dewatered detergent bar wherein air is entrained in the bar after the product has hardened and formed. Background technique: [0002] Soap or non-soap detergent articles are generally prepared by shearing / homogenizing the formulation followed by extrusion and die punching. This procedure is only suitable for thermoplastic or shear-insensitive detergent bar formulations. Shear-sensitive formulations are usually produced by casting. In the production of detergent compositions by casting, the formulation is brought into a fluid state by raising the temperature, filled into molds and then cooled. [0003] The water content in detergent bars is usually maintained at about 5-40%. If a gas such as air is entrained in the detergent block, the bulk density of the block ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/04C11D9/04C11D13/16C11D17/00C11D17/02
CPCC11D17/006C11D13/16C11D17/02
Inventor H·科杜维伊S·M·纳达卡蒂V·M·奈克P·帕塔克S·托马斯
Owner UNILEVER NV
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