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Low total fatty matter (TFM) antibacterial cleansing bar

a total fatty acid and antibacterial technology, applied in the direction of detergents with organic compounding agents, soap detergents with other compounding agents, detergents with detergent compounding agents, etc., can solve the problems of difficult to provide high tfm soaps at a competitive cost, and lowering tfm has a direct and negative effect on the antimicrobial or antibacterial properties of soap compositions, etc., to achieve good

Inactive Publication Date: 2018-08-09
CONOPCO INC D B A UNILEVER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The composition provides effective antimicrobial activity and mildness despite a low TFM content, ensuring quick bacterial kill and maintaining skin hygiene with a reduced risk of contamination, while being cost-effective and comparable in hardness to higher TFM bars.

Problems solved by technology

The increasing demand for vegetable oils, such as palm oil, (one of the main sources of oils and fatty acids used by soap manufacturers), and consequent soaring prices has led to severe constraints on the sustainability of the soaps and detergents Industry, as it is becoming increasingly difficult to provide high TFM soaps at a competitive cost, while still making reasonable profits.
However, lowering of TFM has a direct and negative effect on the antimicrobial or antibacterial property of the soap compositions.
Cleansing compositions which show antimicrobial action but which at the same time are mild and gentle to the skin are generally difficult to formulate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

Zein Number Procedure

[0131]The procedure followed herein is based on the one reported in E. Gotte, Skin Compatibility of Tensides Measured by Their Capacity for Dissolving Zein Protein, Proc. IV International Congress of Surface Active Substances, Brussels, 1964, pp 83-90. This method involves measuring the solubility of Zein (corn protein) in cleansing compositions as follows:

[0132]5% of zein powder was stirred in 1% solution of the product at 35° C. for one hour. The mixture was centrifuged at 3000 rpm for 10 minutes. The solution was filtered to remove any un-dissolved zein powder. The amount of solubilized zein was determined by measuring Nitrogen content of the filtrate by micro Kjeldahl method. This estimate is then converted to calculate milligrams of Nitrogen estimated per gram of the product. This is referred to as the Zein number and indicates the amount of Zein dissolved by the surfactants in the cleansing composition per gram of the product.

[0133]The greater the zein sco...

example 2

Antimicrobial Efficacy of the Composition

[0135]The basic bactericidal activity of the composition was determined by the ASTM 2783 method. It describes a suspension-based, quantitative, microbiology lab test for establishing the capability of a product to produce a reduction in the number of viable bacterial cells of relevant microorganisms under conditions defined by the standard. A test suspension of bacterial cells is added to a prepared sample of the test substance diluted with sterile deionised water. At the specified contact time, an aliquot is taken and the bactericidal and / or bacteriostatic activity is immediately suppressed by dilution or filtration neutralization. The number of surviving bacteria in each sample is determined standard culture plating techniques and the reduction in viable counts is calculated.

[0136]A brief description of the procedure is as follows:

[0137]About 107 bacterial cells (E. coli ATCC 10536) were taken in a test tube and contacted with 8% diluted co...

example 3

NMR Analysis

[0141]The measurements were made Bruker Minispec Wide line NMR spectrometer. The spectrometer has an operating frequency of 5-60 MHz for protons (1H nucleus). A 10 mm sample probe was used and the magnet temperature was 35 deg. C. FID CPMG (Free induction decay Carr-Purcell Meiboom-Gill Relaxation Dispersion) technique was used for determining the relative phase volumes of various phases present in soap, the pulse sequence and the data acquisition. The first 400 data points were recorded from the FID signal following 90° pulse at used (FID CPMG technique) were reported an interval of 0.2 micro seconds. The signal was then refocused using a train of 180° pulses [CPMG] with a value of t=100 (Micro seconds).

TABLE 4Wide line NMR analysisS.SolidLiquidLiquidTotal liquidSolid toNoProduct NamephaseCrystalphasephaseLiquid1Marketed-40 TFM401050601:1.49cast melt bar2E2201663791:4

[0142]Solid phase signifies the insoluble soap or brick which provides rigidity to the cleansing bar. Li...

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PUM

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Abstract

The present invention provides an antimicrobial cleansing bar composition comprising 10 to 30 wt % soap, 20 to 45 wt % water soluble organic solvent, 20 to 40 wt % water, 3 to 20 wt % electrolyte other than soap and an antimicrobial agent.

Description

FIELD OF THE INVENTION[0001]The present invention relates to low total fatty matter antimicrobial cleansing bars.BACKGROUND OF THE INVENTION[0002]Conventional cleansing bars based on soap for personal washing usually contain over about 70% by weight total fatty matter, the remainder being water (about 10-20%) and other ingredients such as colour, perfume, preservatives, etc. Structurants and fillers are also present in such compositions in amounts, which replace some of the soap in the bar while retaining the desired hardness of the bar. A few known fillers include starch, kaolin and talc.[0003]Hard non-milled cleansing bars containing moisture of less than 35% are also available. These bars have a TFM of about 30-65%. The reduction in TFM has usually been achieved by the use of insoluble particulate materials and / or soluble silicates. Milled bars generally have a water content about 8-15%, and the hard non-milled bars have a water content of about 20-35%.[0004]It is important to de...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61Q19/10C11D9/12C11D10/04C11D9/26C11D13/16C11D17/00
CPCA61Q19/10C11D9/12C11D10/04C11D9/26C11D13/16C11D17/0047A61K8/345A61K8/361A61K8/86A61K8/19C11D3/1206C11D3/48C11D3/2065C11D1/146C11D3/046C11D3/2086C11D3/50C11D10/042C11D17/0052C11D17/0095
Inventor AGARKHED, AJIT MANOHARBANKAR, PRAVINKUMAR, NITISH
Owner CONOPCO INC D B A UNILEVER
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