A low TFM cleansing formulation and preparation thereof

Abstract

The present disclosure provides a composition, comprising: at least one organic acid, salt of organic acid, or combinations thereof, wherein the organic acid has pKa in a range of 3 to 7 and molecular weight of less than 200g / mol, and at least two inorganic compounds, wherein the at least one organic acid, salt of organic acid, or combinations thereof is in a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, and the at least two inorganic compounds has a weight range of 2 to 4% (w / w), with respect to the total weight of the composition, and a process of preparation thereof. The present disclosure further provides a low TFM soap formulation, comprising the composition and a process of its preparation.

Description

A LOW TFM CLEANSING FORMULATION AND PREPARATION THEREOFFIELD OF INVENTION

[0001] The present disclosure broadly relates to the field of cleansing formulations. The present disclosure particularly relates to a composition useful in retaining moisture content in low total fatty matter (TFM) cleansing formulation and a process of preparation thereof.BACKGROUND OF THE INVENTION

[0002] Choosing right soap can benefit both health and the environment. The quality of soap based is often assessed by its grade, which ranges from grade 1 to grade 3, and is mainly determined by the soap's Total Fatty Matter (TFM) content. Soap bars typically contain around 70% TFM or oil, primarily palm oil. The challenge for brands, companies, and countries is to balance the growing demand for palm oil while reducing its environmental impact. It is pertinent to note that around 85% of a soap's environmental footprint comes from its ingredients, which significantly influence its overall life cycle impact.

[0003] It is a common misconception that higher TFM always means better quality. While high TFM soaps are appreciated for their cleansing ability, reducing TFM content doesn't necessarily compromise a soap's effectiveness or sensory qualities. Even with a 25% reduction in TFM, soaps can deliver the same cleansing and hygiene benefits. The excess TFM usually gets washed away, thus serving no purpose apart from providing structure to the bar. This highlights the importance of low TFM soaps can play in reducing the greenhouse gases (GHG) footprint. Low TFM bars can potentially cut GHG emissions by 20% to 40% compared to their high TFM counterparts, making them a sustainable choice.

[0004] Rather than relying on high TFM content, optimal design can offer better sensory and clinical benefits. When formulated with ingredients that enhance the skin's natural barrier, these soaps support both the health and beauty of consumers, making them a sustainable and skin-friendly option. However, the major concernin the soaps having low TFM value is the loss of lather and cracking of the soap owing to their low TFM constitution. Furthermore, low TFM soaps, devoid of skin benefit agents may lead to skin dryness.

[0005] Therefore, there is a need in the art to develop soaps having low TFM value without compromising the desirable sensorial of the soaps having high TFM value.SUMMARY OF INVENTION

[0006] In an aspect of the present disclosure, there is provided a composition, comprising: at least one organic acid, salt of organic acid, or combinations thereof, wherein the organic acid has pKa in a range of 3 to 7 and molecular weight of less than 200g / mol; and at least two inorganic compounds, wherein the at least one organic acid salt of organic acid or combinations thereof has a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, and the at least two inorganic compounds has a weight range of 2 to 4% (w / w), with respect to the total weight of the composition.

[0007] In an aspect of the present disclosure, there is provided a composition, comprising: at least one organic acid, salts of organic acid, or combinations thereof, wherein the organic acid has pKa in the range of 3 to 7 and molecular weight of less than 200g / mol; and at least two inorganic compounds, and at least one soluble active cleansing agent; wherein the at least one organic acid has a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, and the at least two inorganic compounds has a weight range of 2 to 4% (w / w), with respect to the total weight of the composition

[0008] In another aspect of the present disclosure, there is provided a process of preparing the composition as disclosed herein, comprising, blending at least one organic acid, salts of organic acid, or combinations thereof with at least two inorganic compounds, and optionally with at least one soluble active cleansing agent, for obtaining the composition.

[0009] In an aspect of the present disclosure, there is provided a low TFM (total fatty matter) soap formulation comprising: (a) a composition comprising: at least one organic acid, salts of organic acid, or combinations thereof, wherein the organicacid has pKa in the range of 3 to 7 and molecular weight of less than 200g / mol; at least two inorganic compounds; and at least one soluble active cleansing agent, and (b) at least one C8-C20fatty acid soap in a weight range of 40 to 70% (w / w), with respect to the total weight of the soap formulation; wherein the at least one organic acid has a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, and the at least two inorganic compounds has a weight range of 2 to 4% (w / w), with respect to the total weight of the composition.

[0010] In another aspect of the present disclosure, there is provided a process of preparing a low TFM soap formulation as disclosed herein, comprising: contacting and mixing at least one organic acid, salts of organic acid, or combinations thereof, at least two inorganic compounds, at least one soluble active cleansing agent and at least one C8-C20 fatty acid soap in any sequence, for preparing the low TFM soap formulation, having a moisture content in a weight range of 16 to 25% (w / w).

[0011] In an aspect of the present disclosure, there is provided a method of cleansing a keratin material, comprising applying the low TFM soap formulation as disclosed herein to the keratin material and rinsing off.

[0012] These and other features, aspects, and advantages of the present subject matter will be better understood with reference to the following description. This summary is provided to introduce a selection of concepts in a simplified form. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.DETAILED DESCRIPTION OF THE INVENTION

[0013] Those skilled in the art will be aware that the present disclosure is subject to variations and modifications other than those specifically described. It is to be understood that the present disclosure includes all such variations and modifications. The disclosure also includes all such steps, features, compositions, and compounds referred to or indicated in this specification, individually or collectively, and any and all combinations of any or more of such steps or features.Definitions

[0014] For convenience, before further description of the present disclosure, certain terms employed in the specification, and examples are delineated here. These definitions should be read in the light of the remainder of the disclosure and understood as by a person of skill in the art. The terms used herein have the meanings recognized and known to those of skill in the art, however, for convenience and completeness, particular terms and their meanings are set forth below.

[0015] The articles “a”, “an” and “the” are used to refer to one or to more than one (i.e., to at least one) of the grammatical object of the article.

[0016] The terms “comprise” and “comprising” are used in the inclusive, open sense, meaning that additional elements may be included. It is not intended to be construed as “consists of only”.

[0017] Throughout this specification, unless the context requires otherwise the word “comprise”, and variations such as “comprises” and “comprising”, will be understood to imply the inclusion of a stated element or step or group of elements or steps but not the exclusion of any other element or step or group of elements or steps.

[0018] The term “including” is used to mean “including but not limited to”. “Including” and “including but not limited to” are used interchangeably.

[0019] The term “w / w,” as used herein, refers to percentage by weight, relative to the weight of the total composition, unless otherwise specified.

[0020] The term “inorganic compounds” refers to components where two or more chemical elements are mixed in definite proportions. The term “inorganic compounds”, as used herein refers to inorganic salts. Non limiting examples provided herein include inorganic salts of Group 1A and Group 2A.

[0021] The term “organic acid” refers to organic compounds that have acidic properties. The term “organic acid” as used herein refer to acids that have pKa in a range of 3 to 7 and molecular weight of less than 200g / mol acids. Non limiting examples provided herein include organic acids and salts thereof, wherein the organic acid is selected from Formula I (a) to (k).

[0022] The term “soap” refers to a substance used for washing and cleansing purposes. Soaps usually are made by combining natural oils or fats with a strong alkali. The term “C8-C20 fatty acid soap” as used herein refer to any alkali or alkali metal salt of fatty acids with carbon chain lengths ranging from 8 to 20. For instance, oleic acid soap as used herein refers to soap made from salt of oleic acid which comprises a carbon chain length of 18.

[0023] Ratios, concentrations, amounts, and other numerical data may be presented herein in a range format. It is to be understood that such range format is used merely for convenience and brevity and should be interpreted flexibly to include not only the numerical values explicitly recited as the limits of the range, but also to include all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited.

[0024] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Although any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the disclosure, the preferred methods, and materials are now described. All publications mentioned herein are incorporated herein by reference.

[0025] As discussed in the background, there is a need in the art to develop low TFM cleansing formulations, preferably soap bars, which is capable of retaining moisture without compromising the desirable characteristics of the regular soaps having high TFM value, especially superiority in lather qualities across water hardness as well as maintaining the bar properties (crack-free, bar elasticity, wear-off properties). It is known to a person of skill in the art that in order to prepare low TFM soaps, high amount of fillers and water is required to be added to the formulation with the addition of benefit agents to maintain both lather and skin sensorial. Prior arts describe use of organic structurants such as cellulose, HPMC and starch in manufacturing of low TFM soaps, which defeat the purpose of cost reduction targets in low TFM bars. Therefore, there is a need in the art to develop low TFM soaps which are not only balanced in cleansing and skin sensorial properties but also provide a sustainable solution cost effectively. The inventors ofthe present invention have surprisingly arrived at a solution whereby the free alkalinity of the soap bar is neutralized effectively to provide a sensorially superior soap bar.

[0026] Accordingly, the present disclosure provides cleansing formulations comprising a combination of organic acid and inorganic compounds, which overcome the lathering impact while reducing TFM. Particularly, the present disclosure provides a composition comprising at least one organic acid, salts of organic acid, or combinations thereof and at least two inorganic compounds. Said composition or combination when added in a soap formulation provides compaction of soluble active cleansing agents during introduction in soap processing line. Further, the addition of inorganic compounds such as silicate, particularly addresses the problem of high retention of moisture in the soap matrix. Furthermore, the addition of organic acid and / or salts thereof helps in neutralizing free alkalinity in the soap formulation.

[0027] The combination of the organic acid and inorganic components exhibits significantly better moisture retention properties in low TFM soap formulations. The disclosed composition will retain the properties equivalent to regular toilet soaps, as well as avoid soap cracking, which is a prevalent issue in low TFM soap. The low TFM cleansing formulations as disclosed herein, are cost effective, sustainable and processable on industry scale using well known and commonly used soap extrusion process.

[0028] The term “total fatty matter” or “TFM” refers to the total amount of fatty mater, which can be separated from a soap or cleansing formulation using standard protocol as in BIS method no. IS 13498. Low TFM soap bars with significantly higher amounts of fillers tend to lose the bar integrity and tend to crack. These soap bars also tend to have high alkalinity in the absence of neutrality which causes skin dryness.

[0029] Accordingly, the embodiments herein provide a sensorially superior soap formulations, compositions for retaining moisture and balancing extra alkalinity in low TFM cleansing formulation and process of preparation thereof.Composition:

[0030] Embodiments herein include a composition, comprising at least one organic acid, salts of organic acid, or combinations thereof, and at least two inorganic compounds.

[0031] In an embodiment of the present disclosure, the at least one organic acid, salts of organic acid, or combinations thereof, and at least two inorganic compounds are in a weight ratio range of 1:2 to 1:40. In another embodiment, the at least one organic acid and the at least two inorganic compounds are in a weight ratio range of 1:5 to 1:40 or 1:5 to 1:35 or 1:7 to 1:40 or 1:8 to 1:40 or 1:20 to 1:40 or 1:20 to 1:35 or 1:12 to 1:40.Organic acids

[0032] The composition, according to the embodiments herein, comprises at least one organic acid, salts of organic acid, or combinations thereof.

[0033] In an embodiment of the present disclosure, the organic acid has pKa in a range of 3 to 7 and molecular weight of less than 200g / mol.

[0034] In an embodiment of the present disclosure, the at least one organic acid, salts of organic acid, or combinations thereof is selected from Formula I (a) to (1) or combinations thereof:

[0035] In a preferred embodiment of the present disclosure, the at least one organic acid is selected from Formula I(a) to I(j) or combinations thereof. In another embodiment of the present disclosure, the salt of organic acid is a sodium salt of organic acid, wherein the organic acid has a formula selected from Formula I(a) toI(j), or combinations thereof. In yet another embodiment of the present disclosure, the salt of organic acid is having a formula as depicted in Formula I(l).

[0036] In an embodiment of the present disclosure, the organic acid is in a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition. In one of the other embodiments, the organic acid is in a weight range of 0.1 to 0.7% (w / w), 0.1 to 0.4% (w / w), 0.2 to 0.7% (w / w), 0.4 to 0.7% (w / w), 0.3 to 0.7% (w / w), 0.2 to 0.5% (w / w), or 0.1 to 0.5% (w / w), with respect to the total weight of the composition.Inorganic compounds

[0037] The composition, according to the embodiments herein, comprises at least two inorganic compounds.

[0038] In an embodiment of the present disclosure, the at least two inorganic compounds are inorganic salt of Group 1A and Group 2 A metal selected from Formula II (a) to (j) or combinations thereof:

[0039] In a preferred embodiment, the at least two inorganic compounds are selected from Formula II(a), 11(d) or 11(g) or combinations thereof.

[0040] In an embodiment of the present disclosure, the at least two inorganic compounds are in a weight range of 2 to 4% (w / w), with respect to the total weight of the composition. In another embodiment, the at least two inorganic compounds are in a weight range of 2 to 3.8% (w / w), 2 to 3.6% (w / w), 2 to 3.5% (w / w), 2.5 to 4% (w / w), 2.5 to 3.6% (w / w), or 2.5 to 3.5% (w / w), with respect to the total weight of the composition.

[0041] In an embodiment of the present disclosure, there is provided a composition, comprising: at least one organic acid, salts of organic acid, or combinations thereof, wherein the organic acid has pKa in the range of 3 to 7 and molecular weight of less than 200g / mol; and at least two inorganic compounds, wherein the at least one organic acid has a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, and the at least two inorganic compounds has a weight range of 2 to 4% (w / w), with respect to the total weight of the composition.

[0042] In another embodiment of the present disclosure, there is provided a composition, comprising: at least one organic acid, salts of organic acid, or combinations thereof, preferably of Formula I(a), I(l), or combinations thereof; and at least two inorganic compounds, preferably, sodium salt of inorganic compounds,selected from Formula II(a), 11(d), 11(g), or combinations thereof, wherein the at least one organic acid has a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, and the at least two inorganic compounds has a weight range of 2 to 4% (w / w), with respect to the total weight of the composition.Active cleansing agent

[0043] The composition, according to the embodiments herein, further comprises at least one soluble active cleansing agent.

[0044] The term “soluble active cleansing agent”, as used herein, refers to a surface-active agent used in lowering the surface tension (or interfacial tension) between different compounds and stabilize the interface in a composition.

[0045] In an embodiment of the present disclosure, the at least one soluble active cleansing agent is selected from anionic active cleansing agent, amphoteric active cleansing agent, or combinations thereof.

[0046] In an embodiment of the present disclosure, the anionic active cleansing agent is selected from sulfonate, sulfate, phosphate, taurate, sarcosinate, isethionate, glycinate, glutamate, sulfosuccinate, carboxylate or combinations thereof, preferably sulfonates, more preferably alpha olefin sulfonate (AOS).

[0047] In an embodiment of the present disclosure, the amphoteric active cleansing agent is selected from cocomonoethanolamide (CMEA), betaines or combinations thereof.

[0048] In an embodiment of the present disclosure, the at least one soluble active cleansing agent is in a weight range of 0.1 to 7% (w / w), with respect to the total weight of the composition. In another embodiment, the at least one soluble active cleansing agent is in a weight range of 0.2 to 7% (w / w), 0.5 to 7% (w / w), 1 to 7% (w / w), 2 to 7% (w / w), 3 to 7% (w / w), 3.5 to 7% (w / w), 4 to 7% (w / w), 4.5 to 7% (w / w), 2 to 6% (w / w), 2 to 5% (w / w), 3 to 5% (w / w), 4 to 6% (w / w), 4.5 to 6% (w / w), or 4 to 5.5% (w / w), with respect to the total weight of the composition.

[0049] In an embodiment of the present disclosure, there is provided a composition, comprising: at least one organic acid, salts of organic acid, or combinations thereof, wherein the organic acid has pKa in the range of 3 to 7 and molecular weight of less than 200g / mol; at least two inorganic compounds; and at least one solubleactive cleansing agent in a weight range of 0.1 to 7% with respect to the total weight of the composition, wherein the at least one organic acid has a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, and the at least two inorganic compounds has a weight range of 2 to 4% (w / w), with respect to the total weight of the composition.

[0050] In another embodiment of the present disclosure, there is provided a composition, comprising: at least one organic acid, salts of organic acid, or combinations thereof, preferably of Formula I(a), I(l), or combinations thereof; at least two inorganic compounds, preferably, sodium salt of inorganic compounds, selected from Formula II(a), 11(d), II(g)or combinations thereof; and at least one soluble active cleansing agent, preferably sulfonates, more preferably alpha olefin sulfonate, in a weight range of 0.1 to 7% (w / w), with respect to the total weight of the composition, wherein the at least one organic acid has a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, and the at least two inorganic compounds has a weight range of 2 to 4% (w / w), with respect to the total weight of the composition.Process of preparing the composition

[0051] Embodiments herein include a process of preparing the composition as disclosed herein.

[0052] In an embodiment of the present disclosure, there is provided a process of preparing the composition as disclosed herein, comprising: blending at least one organic acid, salts of organic acid, or combinations thereof, with at least two inorganic compounds.

[0053] In an embodiment of the present disclosure, there is provided a process of preparing the composition as disclosed herein, comprising: blending at least one organic acid, salts of organic acid, or combinations thereof, with at least two inorganic compounds, and optionally with at least one soluble active cleansing agent, for obtaining the composition.

[0054] In an embodiment of the present disclosure, there is provided a process of preparing the composition as disclosed herein, comprising: blending at least oneorganic acid, salts of organic acid, or combinations thereof, with at least two inorganic compounds, and at least one soluble active cleansing agent, for obtaining the composition.

[0055] In another embodiment of the present disclosure, there is provided a process of preparing the composition as disclosed herein, comprising: blending at least one organic acid, salts of organic acid, or combinations thereof, preferably of Formula I(a), I(l), or combinations thereof, with at least two inorganic compounds, preferably, sodium salt of inorganic compounds, selected from Formula II(a), 11(d), 11(g), or combinations thereof, and optionally with at least one soluble active cleansing agent, for obtaining the composition.

[0056] In yet another embodiment of the present disclosure, there is provided a process of preparing the composition as disclosed herein, comprising: blending at least one organic acid, salts of organic acid, or combinations thereof with at least two inorganic compounds, wherein the at least one organic acid has a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, and the at least two inorganic compounds has a weight range of 2 to 4% (w / w), with respect to the total weight of the composition and optionally with at least one soluble active cleansing agent in a weight range of 0.1 to 7% (w / w), with respect to the total weight of the composition, for obtaining the composition.

[0057] In a preferred embodiment of the present disclosure, there is provided a process of preparing the composition as disclosed herein, comprising: blending at least one organic acid, salts of organic acid, or combinations thereof, preferably of Formula 1(a), 1(1) or combinations thereof, with at least two inorganic compounds, preferably, sodium salt of inorganic compounds selected from Formula II(a), 11(d), 11(g), or combinations thereof, wherein the at least one organic acid has a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, and the at least two inorganic compounds has a weight range of 2 to 4% (w / w), with respect to the total weight of the composition and optionally with at least one soluble active cleansing agent, preferably sulfonates, more preferably alpha olefin sulfonate, in a weight range of 0.1 to 7% (w / w), with respect to the total weight of the composition, for obtaining the composition.Low TFM (total fatty matter) soap formulation

[0058] Embodiments herein include a low TFM (total fatty matter) soap formulation.

[0059] In an embodiment of the present disclosure, there is provided a low TFM (total fatty matter) soap formulation, comprising the composition as disclosed herein in a weight range of 2 to 12% (w / w), with respect to the total weight of the soap formulation; and at least one C8-C20 fatty acid soap, wherein the composition comprises at least one organic acid, salt of organic acid, or combinations thereof, at least two inorganic compounds, and at least one soluble active cleansing agent.

[0060] In an embodiment of the present disclosure, there is provided a low TFM (total fatty matter) soap formulation, comprising the composition as disclosed herein in a weight range of 2 to 6% (w / w), with respect to the total weight of the soap formulation; at least one C8-C20fatty acid soap in a weight range of 40 to 70% (w / w), with respect to the total weight of the soap formulation, and at least one soluble active cleansing agent in a weight range of 0.1 to 7% with respect to the soap formulation, wherein the composition comprises at least one organic acid, salt of organic acid, or combinations thereof, and at least two inorganic compounds.

[0061] In an embodiment of the present disclosure, there is provided a low TFM (total fatty matter) soap formulation, wherein the at least one C8-C20fatty acid soap is selected from a group consisting of oleic acid soap, lauric acid soap, myristic acid soap, palmitic acid soap, stearic acid soap and combinations thereof. In a preferred embodiment, the C8-C20fatty acid soap is sodium salt of fatty acid.

[0062] In an embodiment of the present disclosure, there is provided a low TFM (total fatty matter) soap formulation, comprising: (a) a composition comprising: at least one organic acid, salts of organic acid, or combinations thereof, at least two inorganic compounds, at least one soluble active cleansing agent, and (b) at least one C8-C20fatty acid soap.

[0063] In another embodiment of the present disclosure, there is provided a low TFM (total fatty matter) soap formulation, comprising: (a) a composition comprising: at least one organic acid, or salts thereof, in a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition; at least twoinorganic compounds, in a weight range of 2 to 4% (w / w), with respect to the total weight of the composition; at least one soluble active cleansing agent in a weight range of 0.1 to 7% (w / w), with respect to the total weight of the composition; and (b) at least one C8-C20fatty acid soap in a weight range of 40 to 70% (w / w), with respect to the total weight of the soap formulation.

[0064] In yet another embodiment of the present disclosure, there is provided a low TFM (total fatty matter) soap formulation, comprising: (a) a composition comprising at least one organic acid, salts of organic acid, or combinations thereof, in a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, wherein the organic acid has pKa in the range of 3 to 7 and molecular weight of less than 200g / mol; at least two inorganic compounds, in a weight range of 2 to 4% (w / w), with respect to the total weight of the composition; at least one soluble active cleansing agent in a weight range of 0.1 to 7% (w / w), with respect to the total weight of the composition; and (b) at least one C8-C20fatty acid soap in a weight range of 40 to 70% (w / w), with respect to the total weight of the soap formulation.

[0065] In a preferred embodiment of the present disclosure, there is provided a low TFM (total fatty matter) soap formulation, comprising: (a) a composition comprising, at least one organic acid, salts of organic acid, or combinations thereof, preferably of Formula I(a), I(l), or combinations thereof; at least two inorganic compounds selected from Formula II(a), 11(d), 11(g), or combinations thereof; at least one soluble active cleansing agent, preferably sulfonates, more preferably alpha olefin sulfonate, and (b) at least one C8-C20fatty acid soap in a weight range of 40 to 70% (w / w), with respect to the total weight of the soap formulation, wherein the at least one organic acid has a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, the at least two inorganic compounds has a weight range of 2 to 4% (w / w), with respect to the total weight of the composition, and the at least one soluble active cleansing agent has a weight range of 0.1 to 7% (w / w), with respect to the total weight of the composition. In another embodiment, the C8-C20fatty acid soap is in a weight range of 48 to 68% (w / w), or 50 to 65% (w / w) with respect to the total weight of the soap formulation

[0066] In an embodiment of the present disclosure, the low TFM soap formulation has a moisture content in a weight range of 16 to 25% (w / w), with respect to the total weight of the soap formulation.Additional components

[0067] The low TFM (total fatty matter) soap formulation, according to the embodiments herein, comprises additional components.

[0068] In an embodiment of the present disclosure, there is provided a low TFM (total fatty matter) soap formulation as described herein, comprising additional components selected from a group consisting of one or more of a filler, hardening agent, colorant, humectant, fragrant, antimicrobial agents, preservatives, chelating agent, and combinations thereof. In another embodiment, the low TFM soap formulation comprises additional components in a weight range of 5 to 30%, or 7 to 25% or 7 to 23% (w / w), with respect to the total weight of the formulation.

[0069] In an embodiment of the present disclosure, the filler is selected from talc, dolomite, clays (not limited to bentonite), or combinations thereof; the hardening agent is salt; the colorant is selected from synthetic colorant natural colorant or combination thereof; the humectant is selected from glycerine, propylene glycol, PEG,, fatty acid esters, fatty alcohol, sorbitol, butylene glycol or combination thereof; the fragrant is selected from essential oil, synthetic fragrance or combinations thereof; the antimicrobial agent is selected from triclosan, triclocarban, methylchloroisothiazolinone, methylisothiazolinone, phenoxyethanol, or combinations thereof; the preservative is butylated hydroxytoluene (BHT); and the chelating agent is selected from EDTA, EHDP or combinations thereof.

[0070] In an embodiment of the present disclosure, there is provided a low TFM (total fatty matter) soap formulation, comprising at least one organic acid, salts of organic acid, or combinations thereof, at least two inorganic compounds, at least one soluble active cleansing agent, at least one C8-C20 fatty acid soap, and additional components.

[0071] In an embodiment of the present disclosure, there is provided a low TFM (total fatty matter) soap formulation, wherein the soap is crack resistant and grit free.Process of preparing the formulation

[0072] Embodiments herein include a process of preparing the low TFM (total fatty matter) soap formulation as disclosed herein.

[0073] In an embodiment of the present disclosure, there is provided a process of preparing the low TFM (total fatty matter) soap formulation as disclosed herein, comprising: contacting and mixing at least one organic acid, salts of organic acid, or combinations thereof, at least two inorganic compounds, at least one soluble active cleansing agent and at least one C8-C20 fatty acid soap in any sequence, for preparing the low TFM soap formulation, having a moisture content in a weight range of 16 to 25% (w / w).

[0074] In another embodiment of the present disclosure, there is provided a process of preparing the low TFM (total fatty matter) soap formulation as disclosed herein, comprising: contacting and mixing at least one organic acid, salts of organic acid, or combinations thereof, in a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the formulation, at least two inorganic compounds, in a weight range of 2 to 4% (w / w), with respect to the total weight of the formulation, at least one soluble active cleansing agent, in a weight range of 0.1 to 7% (w / w), with respect to the total weight of the formulation, and at least one C8-C20fatty acid soap, in a weight range of 40 to 70% (w / w), with respect to the total weight of the soap formulation, in any sequence, for preparing the low TFM soap formulation, having a moisture content in a weight range of 16 to 25% (w / w).

[0075] In yet another embodiment of the present disclosure, there is provided a process of preparing the low TFM (total fatty matter) soap formulation as disclosed herein, comprising: contacting and mixing at least one organic acid, salts of organic acid, or combinations thereof, preferably of Formula I(a), I(l), or combinations thereof, in a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the formulation, at least two inorganic compounds, preferably, sodium salt of inorganic compounds, selected from Formula II(a), 11(d), 11(g), or combinationsthereof, in a weight range of 2 to 4% (w / w), with respect to the total weight of the formulation, at least one soluble active cleansing agent, preferably sulfonates, more preferably alpha olefin sulfonate, in a weight range of 0.1 to 7% (w / w), with respect to the total weight of the formulation, and at least one C8-C20fatty acid soap, in a weight range of 40 to 70% (w / w), with respect to the total weight of the soap formulation, in any sequence, for preparing the low TFM soap formulation, having a moisture content in a weight range of 16 to 25% (w / w).

[0076] In an embodiment of the present disclosure, there is provided a process of preparing the low TFM (total fatty matter) soap formulation as disclosed herein, comprising: preparing a composition by contacting and mixing at least one organic acid, salts of organic acid, or combinations thereof, at least two inorganic compounds, at least one soluble active cleansing agent; and blending the composition with at least one C8-C20fatty acid soap, for preparing the low TFM soap formulation, having a moisture content in a weight range of 16 to 25% (w / w).Application / Use

[0077] Embodiments herein include uses of the composition as disclosed herein.

[0078] In an embodiment of the present disclosure, there is provided a use of the composition as disclosed herein in manufacturing low TFM cleansing products selected from toilet soaps, or bathing soaps.

[0079] In an embodiment of the present disclosure, there is provided a method of cleansing keratin material, comprising applying the low TFM soap formulation as disclosed herein to the keratin material and rinsing off.

[0080] In an embodiment of the present disclosure, there is provided a method of cleansing keratin material, wherein the keratin material is selected from skin or hair, preferably skin.

[0081] Although the subject matter has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the subject matter, will become apparent to persons skilled in the art upon reference to the description of the subject matter. It is thereforecontemplated that such modifications can be made without departing from the spirit or scope of the present subject matter as defined.EXAMPLES

[0082] The disclosure will now be illustrated with following examples, which is intended to illustrate the working of disclosure and not intended to take restrictively to imply any limitations on the scope of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this disclosure belongs. Although methods and materials similar or equivalent to those described herein can be used in the practice of the disclosed methods and compositions, the exemplary methods, devices and materials are described herein. It is to be understood that this disclosure is not limited to particular methods, and experimental conditions described, as such methods and conditions may vary.Materials

[0083] The materials used in the present study are synthetic components and have been procured from commercial vendors.Example 1: Preparation of the composition:

[0084] The objective of Example 1 is to describe the process of preparing the composition, comprising at least one organic acid, salts of organic acid, or combinations thereof, at least two inorganic compounds, and optionally at least one soluble active cleansing agent, as disclosed herein. It is to be noted that any sequence of contacting and mixing the components can be performed for preparing the composition. The paragraph below provides a representative process.

[0085] The composition was prepared by contacting and mixing organic acid of formula 1(a) or salt of organic acid having formula 1(1), inorganic compound, i.e., inorganic salts, preferably sodium salts, having formula 11(a), 11(d) and 11(g), with an optional component, i.e., a soluble active cleansing agent (alpha olefin sulfonate or AOS) to obtain the composition.Example 2: Preparation of the low TFM (total fatty matter) soap formulation:

[0086] The objective of Example 2 is to describe the process of preparing the low TFM (total fatty matter) soap formulation, comprising at least one organic acid, salts of organic acid, or combinations thereof, at least two inorganic compounds, at least one soluble active cleansing agent and at least one C8-C20fatty acid soap. It is to be noted that the soap formulation can be prepared by mixing the components in any sequence. The paragraphs below provide illustrative example.

[0087] Illustrative Example 1:

[0088] The composition prepared as per the process described in Example 1 was mixed with C8-C20fatty acid soap in a weight range of 40 to 70% (preferably 48 to 65%) to obtain the low TFM soap formulation.

[0089] Illustrative Example 2:

[0090] C8-C20fatty acid soap was mixed with at least two inorganic compounds and a salt of organic acid to obtain a soap mass. To this soap mass, organic acid and at least one soluble active cleansing agent was added to obtain a low TFM soap formulation.Example 3: Preparation of the low TFM (total fatty matter) soap formulations with additional components:

[0091] The objective of Example 3 is to describe the process of preparing the low TFM (total fatty matter) soap formulation (or final soap bars), comprising at least one organic acid, salts of organic acid, or combinations thereof, at least two inorganic compounds, at least one soluble active cleansing agent, at least one C8-C20fatty acid soap, and additional components selected from one or more of a filler, hardening agent, colorant, humectant, fragrant, or combinations thereof.

[0092] The low TFM soap formulation was prepared by contacting and mixing filler (talc), inorganic compounds (preferably sodium salts) having Formula II(a), 11(d) and 11(g), hardening agent (salt), organic acid or salt of organic acid or combinations thereof (Formula 1(a) or 1(1) or combinations thereof), colorant (titanium dioxide), soluble active cleansing agent (aqueous alpha olefin sulfonate),humectant (glycerine), and fragrant with C8-C20 fatty acid soap (preferably sodium salt of fatty acid) to obtain the low TFM soap formulation. It is to be noted that any sequence of addition of the components can be used for preparation of the formulation. The paragraphs below provide illustrative examples:

[0093] Illustrative Example 1:

[0094] A composition comprising at least one organic acid, salts of organic acid, or combinations thereof, at least two inorganic compounds, and at least one soluble active cleansing agent was prepared. This composition was added to at least one C8-C20 fatty acid soap to prepare an initial formulation. A premix of additives such as, filler, humectant, hardening agent and fragrant was prepared, and this premix was added to the initial formulation and mixed for obtaining the final low TFM soap formulation.

[0095] Illustrative example 2:

[0096] A soap mass was prepared by adding filler, at least two inorganic compounds (formula II(d) and II(g)), hardening agent, colorant and salt of organic acid (Formula I(l)). To this soap mass, organic acid (Formula 1(a)), soluble active cleansing agent (aqueous AOS), an inorganic compound (Formula II(a)) and humectant were added sequentially to form a homogenous soap mass. Desired fragrant was added to the homogenous soap mass to obtain the final low TFM soap formulation.

[0097] Various combinations of the components with altered weight percentage were used resulting in the preparation of low TFM soap formulations, working Examples WE1 to WE6 as depicted in Table 1. Similarly, low TFM soap formulations non- working examples NWE1 to NWE6 were prepared as comparative examples as depicted in Table 2.Example 4: Characterization of the low TFM (total fatty matter) soap formulations (or soap bars):

[0098] The low TFM formulations WE1 to WE6 (working examples) and NWE1 to NWE6 (non-working examples) prepared using the process described in Example 3, were characterized for their TFM (total fatty matter) content, MIV(Moisture, Impurities and Volatiles), crack and grit formation, hardness and lather volume.

[0099] The TFM content was evaluated using the standard method, BIS method no. IS 13498. It was observed that the total TFM was in a weight range of 40 to 60%, which is within the desired and acceptable limit, thereby achieving the intended objective. On the other hand, in the NWE1, it was observed that when the TFM content was below 40%, the formulation was not processable due to the high softness of the soap formulation.

[0100] The MIV (Moisture and Insoluble Volatiles) content was evaluated using the standard method BIS method no. IS 286. It was observed that the MIV was in a weight range of 16 to 25% (w / w), with respect to the total weight of the soap formulation for all the working Examples WE1 to WE6, which is within the desired and acceptable weight range for the low TFM soap formulation of the present disclosure.

[0101] The low TFM soap formulations were assessed for crack and grit formation, and it was observed that no crack or grit was formed in the Formulations WE1 to WE6 (Table 1), in contrast to the Formulations NWE1 to NWE6 (Table 2), wherein cracks were observed in soap bars of NWE2, NWE3 and NWE5.

[0102] The bar hardness of the formulations was measured by a standard method using penetrometer. The formulations WE1 to WE6 (Table 1), exhibited desirable hardness in a range of 3 to 4mm, in contrast to the formulations NWE1, NWE2, NWE3, NWE4 and NWE6 (Table 2).

[0103] The lather volume of the formulations was estimated by preparing 5% of soap solution (5 gm of the formulation in 100 ml of water), followed by blending using a kitchen blender at low speed for 1 min, and pouring the mix into a measuring cylinder to measure the volume of the lather. The formulations WE1 to WE6 (Table 1), exhibited desirable lather volume in a range of 280 to 360 mL, in contrast to the formulations NWE1, NWE4 and NWE6 (Table 2).Table 1: Exemplary low TFM cleansing formulations (working examples)Table 2: Exemplary low TFM cleansing formulations (non-working examples)

[0104] It can be observed that for all of the non-working examples the weight percentage of either the inorganic compound or the organic acid (or salt thereof) is outside the desired range. Accordingly, the soap bars prepared from these formulations did not exhibit desired features and sensorial properties. Additionally, the Formulation of NWE1 was not processable due to low content of TFM (soap content). Similarly, the Formulation of NWE6 was not processable due to high content of active cleansing agent.Advantages of the present disclosure

[0105] The present disclosure provides a composition for retaining moisture in a low total fatty matter (TFM) cleansing formulation with the following advantages:1. The cleansing formulation comprising the composition exhibits a reduced TFM content.2. The cleansing formulation comprising the composition exhibits desired lather volume (280 to 230 ml), and moisture content (16 to 25%) similar to soaps with high TFM content3. The cleansing formulation comprising the composition exhibits desirable properties characteristic of a soap such as maintaining bar integrity withhardness in the range of 3 to 4mm and displayed no cracking or grit formation.4. The cleansing formulation is milder for use on skin surface due to retention of moisture content.5. The cleansing formulation is cost friendly and environment friendly as it uses cheaper and safer ingredients.

Claims

I / We Claim:

1. A composition, comprising:- at least one organic acid, salt of organic acid, or combinations thereof, wherein the organic acid has pKa in a range of 3 to 7 and molecular weight of less than 200g / mol, and- at least two inorganic compounds,wherein the at least one organic acid, salt of organic acid or combinations thereof is in a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, and the at least two inorganic compounds are in a weight range of 2 to 4% (w / w), with respect to the total weight of the composition.

2. The composition as claimed in claim 1, wherein the at least one organic acid, or salt of organic acid is selected from Formula I (a) to (1) or combinations thereof:

3. The composition as claimed in claim 1, wherein the at least two inorganic compounds are inorganic salt of Group 1A or Group 2A metal, selected from Formula II (a) to (j) or combinations thereof:

4. The composition as claimed in any of the claims 1-3, wherein the composition further comprises at least one soluble active cleansing agent in a weight range of 0.1 to 7% (w / w), with respect to the total weight of the composition.

5. The composition as claimed in claim 4, wherein the at least one soluble active cleansing agent is selected from anionic active cleansing agent, amphoteric active cleansing agent, or combinations thereof.

6. The composition as claimed in claim 5, wherein the anionic active cleansing agent is selected from sulfonate, sulfate, phosphate, taurate, sarcosinate, isethionate, glycinate, glutamate, sulfosuccinate, carboxylate or combinations thereof.

7. The composition as claimed in claim 5, wherein the amphoteric active cleansing agent is selected from cocomonoethanolamide (CMEA), betaines or combinations thereof.

8. The composition as claimed in claim 1, for use in manufacturing low TFM cleansing products selected from toilet soap or bathing soap.

9. A process of preparing the composition as claimed in claims 1 to 8, comprising, blending at least one organic acid, salts of organic acid, or combinations thereof with at least two inorganic compounds, and optionally with at least one soluble active cleansing agent, for obtaining the composition.

10. A low TFM (total fatty matter) soap formulation comprising:(a) a composition comprising:- at least one organic acid, salt of organic acid or combinations thereof, wherein the organic acid has pKa in the range of 3 to 7 and molecular weight of less than 200g / mol,- at least two inorganic compounds; and- at least one soluble active cleansing agent, and(b) at least one C8-C20fatty acid soap in a weight range of 40 to 70% (w / w), with respect to the total weight of the soap formulation;wherein the at least one organic acid, salt of organic acid or combinations thereof has a weight range of 0.1 to 0.8% (w / w), with respect to the total weight of the composition, and the at least two inorganic compounds are in a weight range of 2 to 4% (w / w), with respect to the total weight of the composition.

11. The low TFM soap formulation as claimed in claim 10, wherein the low TFM soap formulation has moisture content in a weight range of 16 to 25% (w / w), with respect to the total weight of the soap formulation.

12. The low TFM soap formulation as claimed in claim 10, wherein the at least one C8-C20fatty acid soap is selected from oleic acid soap, lauric acid soap, myristic acid soap, palmitic acid soap, stearic acid soap, or combinations thereof.

13. The low TFM soap formulation as claimed in claim 10, wherein the soap formulation further comprises additional components selected from one or more of a filler, hardening agent, colorant, humectant, fragrant, antimicrobial agents, preservatives, chelating agent, or combinations thereof.

14. The low TFM soap formulation as claimed in claim 13, wherein the filler is selected from talc, dolomite, clays, or combinations thereof; the hardening agent issalt; the colorant is selected from synthetic colorant, natural colorant, or combinations thereof; the humectant is selected from glycerine, propylene glycol, polyethylene glycol (PEG), fatty acid esters, fatty alcohol, sorbitol, butylene glycol, or combinations thereof; the fragrant is selected from essential oil, synthetic fragrance, or combinations thereof; the antimicrobial agent is selected from triclosan, triclocarban, methylchloroisothiazolinone, methylisothiazolinone, phenoxyethanol, or combinations thereof; the preservative is butylated hydroxytoluene (BHT); and the chelating agent is selected from EDTA, HEDP, or combinations thereof.

15. The low TFM soap formulation as claimed in claim 10, wherein the soap is crack resistant and grit free.

16. A process of preparing a low TFM soap formulation as claimed in claim 10, comprising:contacting and mixing at least one organic acid, salt of organic acid or combinations thereof, at least two inorganic compounds, at least one soluble active cleansing agent, and at least one C8-C20 fatty acid soap in any sequence, for preparing the low TFM soap formulation having moisture content in a weight range of 16 to 25% (w / w).

17. A method of cleansing keratin material, comprising applying the low TFM soap formulation as claimed in claim 10 or 13 to the keratin material and rinsing off.

18. The method as claimed in claim 17, wherein the keratin material is selected from skin or hair.

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