GB2582142A

GB2582142A - Composition

Info

Publication number: GB2582142A
Application number: GB1903340.6A
Authority: GB
Inventors: Constantine Mark; Joan Constantine Margaret; Elizabeth Ambrosen Helen; Jacqueline Bird Rowena; James Campbell Daniel
Original assignee: Cosmetic Warriors Ltd
Current assignee: Cosmetic Warriors Ltd
Priority date: 2019-03-12
Filing date: 2019-03-12
Publication date: 2020-09-16
Also published as: GB201903340D0

Abstract

A solid cosmetic composition comprising a vegetable butter, sodium bicarbonate and cream of tartar. The vegetable butter may be cocoa butter or illipe butter and preferable makes up 40 to 60 %wt of the composition. The sodium bicarbonate is preferably 10 to 20 % wt of the composition. The cream of tartar is preferably 8 to 18 %wt of the composition. The composition may further comprise a surfactant, such as a polyoxyether of lauryl alcohol (e.g. Laureth 4). The composition may further comprise one or more of a colouring, binder, filler, perfume or decorative item. The cosmetic composition may be a bathing product. Also discussed is a process for the production of said solid cosmetic composition where the vegetable butter is melted and is then contacted with the sodium bicarbonate and cream of tartar. The mixture is then allowed to set. Also discussed is a cosmetic method of contacting the skin of a user with bathing water containing the solid composition.

Description

COMPOSITION

FIELD OF THE INVENTION

The present invention relates to a solid cosmetic product, a process for producing said product, and a product prepared by the method.

BACKGROUND TO THE INVENTION

The present invention relates to products particularly those for use in contact with the human body.

Therapeutic bathing products are known in the cosmetic industry and are available in a variety of different forms. Bath salts, oils, and lotions are a few examples of bathing products that can deliver emollients, essential oils and fragrances to a bath, providing calming and remedial properties. However, the required use of solid packaging for these products is a significant disadvantage due to the environmental impact that waste packaging has, despite the availability of recycling.

For at least this reason encapsulated compositions for creating therapeutic bath products have become increasingly popular. For example US 4,294,855 and WO 03/061633 disclose compositions which are capable of enveloping a core cosmetic. The active therapeutic components are often encased in a gelatinous or membrane-bound shell, which dissolves on contact with water, releasing the core ingredients into the water.

However the disadvantage of these products is that the shell does not readily dissipate in water, delaying the release of the active ingredients, whilst providing no effective benefit of its own. They are also prone to rupturing, resulting in a wasted and suboptimal product.

In response to these problems, the present applicant provided the solid cosmetic 30 compositions of GB2492139 and W02016/170334. These products have been commercially successful but sometimes are prone to becoming soft or even melting during storage.

The present invention seeks to provide a solid cosmetic product that may be used as a therapeutic bathing product and is capable of delivering a concentrated dose of emollients, essential oils and/or fragrances with an enhanced experience for the user. The present invention further seeks to provide a solid cosmetic product which has a degree of hardness which assists in handling and storage prior to use. Furthermore, the present invention seeks to provide a solid cosmetic product delivering a further improved experience for the user.

SUMMARY OF THE INVENTION

In one aspect there is provided a solid cosmetic composition comprising (a) vegetable butter; (b) sodium bicarbonate; and (c) cream of tartar.

In one aspect there is provided a process for the production of a solid cosmetic composition as defined herein comprising the steps of: (i) melting vegetable butter; (ii) contacting the melted vegetable butter with the sodium bicarbonate and cream of tartar; and (iii) allowing the mixture of step (ii) to solidify.

In one aspect there is provided a product obtained or obtainable by a process as described herein.

In one aspect there is provided a cosmetic method comprising contacting the skin of a user with bathing water containing a solid cosmetic composition as described herein.

For ease of reference, these and further aspects of the present invention are now discussed under appropriate section headings. However, the teachings under each section are not necessarily limited to each particular section.

Advantages We have identified that by providing a solid cosmetic composition as described herein, a composition is prepared which more firmly holds its form and does not readily melt prior to use. By virtue of this property, it is possible to more easily sell the product without unnecessary packaging. In particular, retail environments require that products be displayed or stored by stacking. This stacking can be compromised by even slight melting of the periphery of the product. Even slight melting may result in adjoining products adhering to each other on solidification of the melt. Furthermore, the melting may result in bleeding' of colours between adjoining products. A further disadvantage of a product which melts too readily is that consumers may find them unpleasant to handle. Furthermore, even slight melting may be felt by consumers to be undesirable since the product may contact items such as clothing which may be marked with the product. We have found that by including sodium bicarbonate and cream of tartar in the present product, a product of suitable solidity may be delivered.

We have also found that the presence of sodium bicarbonate and cream of tartar provides an efficient means of melting and then dispersing the vegetable butter when the product is placed in bath water. In particular, this combination of sodium bicarbonate and cream of tartar effervesces on contact with water. The cosmetic product may be added to the bath after filling and still be disbursed effectively so that the user benefits from the cosmetic properties of the vegetable butter. For example with the present product, once a bath has been run the product may be added to the water. This may be before or after the user has immersed themselves in the bath. On contact with water these two materials combine to create and liberate carbon dioxide. The carbon dioxide liberated from within the product "breaks up" the surface of the product allowing for further ingress of water and dispersion of the butter from the surface of the product into the bathwater.

The specific combination of sodium bicarbonate and cream of tartar is advantageous over prior art effervescent systems because we have found that this particular effervescent combination maintains the vibrancy or strength of colours included in the solid cosmetic product. This is in contrast to prior art systems such as GB2492139.

Consequently, we have found that the specific combination of sodium bicarbonate and cream of tartar, together with the required vegetable butter, delivers a system which is suitably solid to allow for simplified retailing without the need for packaging, readily effervesces to disperse the vegetable butter in bathwater and also maintains the vibrancy of colours included in the product.

DETAILED DESCRIPTION

Composition As discussed herein, in one aspect of the present invention, there is provided a solid cosmetic composition comprising (a) vegetable butter; (b) sodium bicarbonate; and (c) cream of tartar.

It will be understood by one skilled in the art that the nature of a cosmetic product means that the product is not edible. Thus in a further aspect the present invention provides a non-edible solid cosmetic composition comprising (a) vegetable butter; (b) sodium bicarbonate; and (c) cream of tartar.

The solid products of the present invention are compositions which can substantially sustain their physical shape when unsupported by external means, e.g. packaging etc. Thus, they are considered to be solid, solid-like, in solid form or in solid-like form at room temperature. For the avoidance of doubt the solid product must remain substantially solid at up to 30°C.

By solid-like, it is understood that some materials are considered on a day to day basis to be solid, yet over an extremely long period of time, may alter in shape, e.g. amorphous materials such as glass etc. However, they are considered to be solid-like as, for the purpose they fulfil, they are solid.

Due to the solid form of the compositions of the present invention, external packaging is not required to maintain the shape of the composition.

The present invention provides a cosmetic product which is solid. The vegetable butters incorporated into the solid product are typically used as agents in bath products. The solid cosmetic composition of the present invention is typically a bath product.

Vegetable Butter

The term vegetable butter is understood by one skilled in the art and means a triglyceride obtainable from vegetable source which has the consistency of butter. The vegetable butters used in the present invention are triglycerides, which are found to be solid (including solid-like, discussed above) at normal usage temperatures. For the avoidance of doubt the vegetable butter is a triglyceride which remains substantially solid at up to 30°C.

It will be appreciated however that it is not a requirement that the vegetable butter have a solid fat content of 100% at normal usage temperatures. In a preferred aspect the solid fat has a solid fat content of at least 70%, preferably at least 80%, preferably at least 90%, preferably at least 95%, preferably at least 98%, preferably at least 99% at 25°C.

The vegetable butter may be selected from any suitable vegetable butters. In one aspect, the vegetable butter is selected from Cocoa butter, Illipe butter, Murumuru butter, Kokum butter, Aloe butter, Avocado butter, Cupuacu butter, Macadamia Nut butter, Mango butter, Olive butter, Shea butter, Coconut butter, Pumpkin Seed butter, Peanut butter, Almond butter, Coffee Bean butter, Refined butter, Hemp Seed butter, Mochacchino butter, Pistachio Nut butter, Shealoe butter, and mixtures thereof.

In one aspect, the solid cosmetic composition comprises at least one or more hard vegetable butters. The one or more hard vegetable butters may be selected from Cocoa butter, Illipe butter, Murumuru butter, Kokum butter and mixtures thereof.

In one aspect, the solid cosmetic composition comprises at least one or more soft vegetable butters. The one or more soft vegetable butters may be selected from Aloe butter, Avocado butter, Cupuacu butter, Macadamia Nut butter, Mango butter, Olive butter, Shea butter, Coconut butter, Pumpkin Seed butter, Peanut butter, Almond butter, Coffee Bean butter, Refined butter, Hemp Seed butter, Mochacchino butter, Pistachio Nut butter, Shealoe butter and mixtures thereof.

In one aspect, the solid cosmetic composition comprises (i) at least one or more hard vegetable butters selected from Cocoa butter, Illipe butter, Murumuru butter, Kokum butter and mixtures thereof; and (ii) at least one or more soft vegetable butters selected from Aloe butter, Avocado butter, Cupuacu butter, Macadamia Nut butter, Mango butter, Olive butter, Shea butter, Coconut butter, Pumpkin Seed butter, Peanut butter, Almond butter, Coffee Bean butter, Refined butter, Hemp Seed butter, Mochacchino butter, Pistachio Nut butter, Shealoe butter and mixtures thereof In one aspect, the vegetable butter is at least Cocoa butter. In one aspect, the vegetable butter is at least 50% wt. Cocoa butter. In one aspect, the vegetable butter is at least 60% wt. Cocoa butter. In one aspect, the vegetable butter is at least 70% wt. Cocoa butter. In one aspect, the vegetable butter is at least 80% wt. Cocoa butter. In one aspect, the vegetable butter is at least 90% wt. Cocoa butter. In one aspect, the vegetable butter consists of Cocoa butter.

As will be understood by one skilled in the art, the vegetable butter may be present in any suitable amount to provide the desired solid cosmetic composition of the present invention. In one aspect, the vegetable butter is present in an amount of from 25 to 80 wt.% based on the solid cosmetic composition. In one aspect, the vegetable butter is present in an amount of from 25 to 75 wt.% based on the solid cosmetic composition. In one aspect, the vegetable butter is present in an amount of from 25 to 70 wt.% based on the solid cosmetic composition. In one aspect, the vegetable butter is present in an amount of from 25 to 65 wt.% based on the solid cosmetic composition. In one aspect, the vegetable butter is present in an amount of from 25 to 60 wt.% based on the solid cosmetic composition. In one aspect, the vegetable butter is present in an amount of from 25 to 55 wt.% based on the solid cosmetic composition.

In one aspect, the vegetable butter is present in an amount of from 30 to 80 wt.% based on the solid cosmetic composition. In one aspect, the vegetable butter is present in an amount of from 35 to 80 wt.% based on the solid cosmetic composition. In one aspect, the vegetable butter is present in an amount of from 40 to 80 wt.% based on the solid cosmetic composition. In one aspect, the vegetable butter is present in an amount of from 45 to 80 wt.% based on the solid cosmetic composition. In one aspect, the vegetable butter is present in an amount of from 50 to 80 wt.% based on the solid cosmetic composition.

In one aspect, the vegetable butter is present in an amount of from 30 to 75 wt.% based on the solid cosmetic composition. In one aspect, the vegetable butter is present in an amount of from 30 to 70 wt.% based on the solid cosmetic composition. In one aspect, the vegetable butter is present in an amount of from 35 to 65 wt.% based on the solid cosmetic composition. In one aspect, the vegetable butter is present in an amount of from 40 to 60 wt.% based on the solid cosmetic composition. In one aspect, the vegetable butter is present in an amount of from 45 to 55 wt.% based on the solid cosmetic composition.

In one aspect, the cocoa butter is present in an amount of from 25 to 80 wt.% based on the solid cosmetic composition. In one aspect, the cocoa butter is present in an amount of from 25 to 75 wt.% based on the solid cosmetic composition. In one aspect, the cocoa butter is present in an amount of from 25 to 70 wt.% based on the solid cosmetic composition. In one aspect, the cocoa butter is present in an amount of from 25 to 65 wt.% based on the solid cosmetic composition. In one aspect, the cocoa butter is present in an amount of from to 60 wt.% based on the solid cosmetic composition. In one aspect, the cocoa butter is present in an amount of from 25 to 55 wt.% based on the solid cosmetic composition.

In one aspect, the cocoa butter is present in an amount of from 30 to 80 wt.% based on the solid cosmetic composition. In one aspect, the cocoa butter is present in an amount of from to 80 wt.% based on the solid cosmetic composition. In one aspect, the cocoa butter is present in an amount of from 40 to 80 wt.% based on the solid cosmetic composition. In one aspect, the cocoa butter is present in an amount of from 45 to 80 wt.% based on the solid cosmetic composition. In one aspect, the cocoa butter is present in an amount of from 50 to 80 wt.% based on the solid cosmetic composition.

In one aspect, the cocoa butter is present in an amount of from 30 to 75 wt.% based on the solid cosmetic composition. In one aspect, the cocoa butter is present in an amount of from 30 to 70 wt.% based on the solid cosmetic composition. In one aspect, the cocoa butter is present in an amount of from 35 to 65 wt.% based on the solid cosmetic composition. In one aspect, the cocoa butter is present in an amount of from 40 to 60 wt.% based on the solid cosmetic composition. In one aspect, the cocoa butter is present in an amount of from 45 to 55 wt.% based on the solid cosmetic composition.

Sodium Bicarbonate Sodium bicarbonate (also known as sodium hydrogen carbonate) is compound of formula NaHCO3. a well-known As will be understood by one skilled in the art, the sodium bicarbonate may be present in any suitable amount to provide the desired solid cosmetic composition of the present invention. In one aspect, sodium bicarbonate is present in an amount of from 2 to 30 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 2 to 28 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 2 to 24 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 2 to 22 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 2 to 20 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 2 to 18 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 2 to 16 wt.% based on the solid cosmetic composition.

In one aspect, sodium bicarbonate is present in an amount of from 4 to 30 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 6 to 30 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 8 to 30 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 10 to 30 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 12 to 30 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 14 to 30 wt.% based on the solid cosmetic composition.

In one aspect, sodium bicarbonate is present in an amount of from 4 to 28 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 6 to 26 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 8 to 24 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 10 to 22 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 10 to 20 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 12 to 18 wt.% based on the solid cosmetic composition. In one aspect, sodium bicarbonate is present in an amount of from 14 to 16 wt.% based on the solid cosmetic composition.

Cream of Tartar Cream of tartar (also known as potassium bitartrate or potassium hydrogen tartrate) is the potassium acid salt of tartaric acid and is a well-known compound of formula KC4H506.

As will be understood by one skilled in the art, the cream of tartar may be present in any suitable amount to provide the desired solid cosmetic composition of the present invention.

In one aspect, cream of tartar is present in an amount of from 2 to 30 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 2 to 28 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 2 to 24 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 2 to 22 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 2 to wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 2 to 18 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 2 to 16 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 2 to 14 wt.% based on the solid cosmetic composition.

In one aspect, cream of tartar is present in an amount of from 4 to 30 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 6 to 30 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 8 to 30 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 10 to 30 wt.% based on the solid cosmetic composition.

In one aspect, cream of tartar is present in an amount of from 4 to 28 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 4 to 26 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 4 to 24 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 6 to 22 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 8 to 20 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 8 to 18 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 10 to 18 wt.% based on the solid cosmetic composition. In one aspect, cream of tartar is present in an amount of from 10 to 16 wt.% based on the solid cosmetic composition.

Composition As discussed above, the teachings under each section herein may be combined. In particular, the amount of components disclosed herein may be combined.

In one aspect, the present invention provides a solid cosmetic composition comprising (a) vegetable butter in an amount of from 25 to 80 wt.% based on the solid cosmetic composition; (b) sodium bicarbonate in an amount of from 2 to 30 wt.% based on the solid cosmetic composition; and (c) cream of tartar in an amount of from 2 to 30 wt.% based on the solid cosmetic composition.

In one aspect, the present invention provides a solid cosmetic composition comprising (a) vegetable butter in an amount of from 30 to 70 wt.% based on the solid cosmetic composition; (b) sodium bicarbonate in an amount of from 5 to 25 wt.% based on the solid cosmetic composition; and (c) cream of tartar in an amount of from 5 to 25 wt.% based on the solid cosmetic composition.

In one aspect, the present invention provides a solid cosmetic composition comprising (a) vegetable butter in an amount of from 35 to 65 wt.% based on the solid cosmetic composition; (b) sodium bicarbonate in an amount of from 10 to 20 wt.% based on the solid cosmetic composition; and (c) cream of tartar in an amount of from 8 to 18 wt.% based on the solid cosmetic composition.

In one aspect, the present invention provides a solid cosmetic composition comprising (a) vegetable butter in an amount of from 40 to 60 wt.% based on the solid cosmetic composition; (b) sodium bicarbonate in an amount of from 10 to 20 wt.% based on the solid cosmetic composition; and (c) cream of tartar in an amount of from 8 to 18 wt.% based on the solid cosmetic composition.

In one aspect, the present invention provides a solid cosmetic composition comprising (a) vegetable butter in an amount of from 45 to 55 wt.% based on the solid cosmetic composition; (b) sodium bicarbonate in an amount of from 10 to 20 wt.% based on the solid cosmetic composition; and (c) cream of tartar in an amount of from 8 to 18 wt.% based on the solid cosmetic composition.

Further Components The solid cosmetic composition one or more components in addition to (a) vegetable butter; (b) sodium bicarbonate; and (c) cream of tartar.

In one aspect, the solid cosmetic composition further comprises a surfactant. The surfactant may be any suitable surfactant. The surfactant may be selected to provide a cleansing effect on the user of the cosmetic composition and/or may be selected to provide a visual effect when the product is used, such as to provide foaming in bathing water. In one aspect, the surfactant is selected from polyoxyethers of lauryl alcohol, sodium lauroyl sarcosinate, N-lauroyl sarcosine, sodium lauryl sulfate, sodium laureth sulfate, sodium methyl cocoyl taurate, sodium dodecyl sulfate, sodium cocosulfate, ammonium lauryl sulfate, ammonium laureth sulfate, sodium myreth sulfate, sodium lauroyl sarcosinate, disodium laureth sulfosuccinate, sodium lauryl sulfoacetate, lauryl betaine, cocamidopropyl betaine, trimethyl glycine betaine, sodium cocoamphoacetate, disodium cocoamphodiacetate, sodium lauroamphoacetate, disodium lauroamphodiacetate, cocoamidopropyl hydroxysultaine, cetrimonium chloride, behentrimonium chloride, thereof and mixtures thereof.

In a further aspect the surfactant is selected from polyoxyethers of lauryl alcohol (such as Laureth 4), sodium laureth sulphate, lauryl betaine and mixtures thereof.

If present, the surfactant may be present in the solid cosmetic composition in any suitable amount. In one aspect, surfactant is present in an amount of from 2 to 30 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 2 to 28 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 2 to 24 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 2 to 22 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 2 to 20 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 2 to 18 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 2 to 16 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 2 to 14 wt.% based on the solid cosmetic composition.

In one aspect, surfactant is present in an amount of from 4 to 30 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 6 to 30 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 8 to 30 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 10 to 30 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 12 to 30 wt.% based on the solid cosmetic composition.

In one aspect, surfactant is present in an amount of from 4 to 28 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 4 to 26 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 4 to 24 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 6 to 22 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 8 to 20 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 8 to 18 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 10 to 18 wt.% based on the solid cosmetic composition. In one aspect, surfactant is present in an amount of from 12 to 16 wt.% based on the solid cosmetic composition.

In one aspect, the solid cosmetic composition further comprises a colouring. The colouring may be any suitable colouring. In one aspect, the colouring is selected from an oil soluble colouring, a water soluble colouring, and mixtures thereof. In a preferred aspect, the colouring is a water soluble colouring. In a preferred aspect, the colouring is an oil soluble colouring. The colouring can be naturally derived or it can be a synthetic colouring. Preferably it is naturally occurring. As will be appreciated by one skilled in the art a water soluble colouring can be any colouring that is completely or significantly soluble in an aqueous medium. The 'Ecological and Toxicological Association of Dyes and Pigment Manufacturers' defines a colouring as an "intensely coloured or fluorescent organic substances only, which impart colour to a substrate by selective absorption of light". They are typically soluble and/or go through an application process, which, at least temporarily, destroys any crystal structure by absorption, solution, and mechanical retention, or by ionic or covalent chemical bonds".

Natural colourants are known to those skilled in the art and are materials and compositions which are naturally occurring and have the ability to colour compositions. In one aspect, the natural colourant is a colourant derived from organic sources. In one aspect, the natural colourant is a colourant not derived from inorganic sources. In one aspect, the natural colourant is a colourant derived from organic, and not inorganic, sources. In one aspect, the natural colourant is an organic pigment. The terms organic and inorganic are understood by those skilled in the art. Typically, an organic material is considered to be a material containing carbon. An inorganic material is one that is not organic.

In one aspect, the natural colourant is a colourant that is derived from plant-based material. In one aspect, the natural colourant is a colourant that a component of a plant. In one aspect the natural colourant is selected from beetroot, chlorophyll, gardenia, blackberry, coffee, rose, caramel powder, grape, alfalfa, walnut hull, calendula, cocoa, green tea, hibiscus, kelp, olive, orange, parsley, pumpkin, spinach, spirulina, wheatgrass sources, turmeric, butterfly pea, carrot, tomato and mixtures thereof.

In one aspect the natural colourant is selected from chlorophyll, carotenoids, anthocyanins, betalains and mixtures thereof.

In one aspect the natural colourant is selected from CI Natural blue 1, CI Natural blue 2, CI Natural red 1, CI Natural red 3, CI Natural red 4, CI Natural red 6, CI Natural red 8, CI Natural red 9, CI Natural red 10, CI Natural red 11, CI Natural red 12, CI Natural red 14, CI Natural red 16, CI Natural red 18, CI Natural red 20, CI Natural red 25, CI Natural red 33, CI Natural orange 2, CI Natural orange 4, CI Natural orange 6, CI Natural yellow 2, CI Natural yellow 3, CI Natural yellow 10, CI Natural yellow 13, CI Natural yellow 16, CI Natural brown 3, CI Natural brown 7, CI Natural brown 10, CI Natural green 2, CI Natural green 3, CI Natural black 1 and mixtures thereof.

In some embodiments, the natural colourant is selected from Acid Yellow 23, Acid Orange 7, Acid Yellow 1, Acid Red 33, Acid Red 92, Acid Violet 43, Acid Blue 9, Acid Black 1, HC Yellow 2, HC Red 3, HC Blue 2, HC Blue 15, Basic Red 51, Basic Orange 31, Basic Brown 16, Basic Brown 17, Basic Red 76, Basic Blue 99, Basic Yellow 57, Basic Yellow 87, Basic Violet 2, 4-hydroxypropylamino-3-nitrophenol, N,N'-bis-(2-hydroxyethyl)-2-nitro-phenylenediamine, and mixtures thereof. In some embodiments, the colouring is selected from Acid Yellow 23, Acid Orange 7, Acid Yellow 1, Acid Red 33, Acid Red 92, Acid Violet 43, Acid Blue 9, Acid Black 1, HC Yellow 2, HC Red 3, HC Blue 2, HC Blue 15, Basic Red 51, Basic Orange 31, Basic Brown 16, Basic Brown 17, Basic Red 76, Basic Blue 99, Basic Yellow 57, Basic Yellow 87, Basic Violet 2, and mixtures thereof. In some embodiments, the colouring is a mixture of Basic Red 51 and Basic Blue 99. In some embodiments, the colouring is a mixture of Basic Blue 99, Basic Brown 16, Acid Violet 43, Basic Red 76 and Basic Yellow 57. It is noted that each of these colourings are listed using the name ascribed by the International Nomenclature of Cosmetic Ingredients (INCI).

In some embodiments, the colouring is a colouring that is suitable for use in food. In some embodiments, the colouring is a colour additive that is approved for use in food, drugs and cosmetics (FD&C colourings). In some embodiments, the colouring is selected from FD&C Blue No. 1, FD&C Blue No. 2, FD&C Green No. 3, FD&C Red No. 3, FD&C Red No. 40, FD&C Yellow No. 5, FD&C Yellow No. 6, FD&C Green No. 1, FD&C Green No. 2, FD&C Red No. 1, FD&C Red No. 2, FD&C Red No. 4, FD&C Violet No. 1, FD&C Orange No. 1, FD&C Orange No. 2, FD&C Yellow No. 1, FD&C Yellow No. 2, FD&C Yellow No. 3, FD&C Yellow No. 4, and mixtures thereof.

In one aspect the water soluble colouring has a solubility of more than 20 g/L water at 25°C. In one aspect the water soluble colouring has a solubility of more than 30 g/L water at 25°C. In one aspect the water soluble colouring has a solubility of more than 40 g/L water at 25°C.

In one aspect the water soluble colouring has a solubility of more than 50 g/L water at 25°C.

In one aspect the water soluble colouring has a solubility of more than 60 g/L water at 25°C In one aspect the water soluble colouring has a solubility of more than 70 g/L water at 25°C In one aspect the water soluble colouring has a solubility of more than 80 g/L water at 25°C In one aspect the water soluble colouring has a solubility of more than 90 g/L water at 25°C.

In one aspect the water soluble colouring has a solubility of more than 100 g/L water at 25°C.

The colouring may be present in any suitable amount to provide the necessary properties of the final product. In one aspect the colouring is present in an amount of at least 0.01 by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of at least 0.1 % by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of at least 0.2 % by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of at least 0.5 % by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of at least 1 % by weight of the solid cosmetic composition.

In one aspect the colouring is present in an amount of no greater than 10 % by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of no greater than 7 % by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of no greater than 5 % by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of no greater than 4 % by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of no greater than 3 % by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of no greater than 2 % by weight of the solid cosmetic composition.

In one aspect the colouring is present in an amount of from 0.01 to 10% by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of from 0.01 to 8% by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of from 0.01 to 6% by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of from 0.01 to 4% by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of from 0.1 to 2% by weight of the solid cosmetic composition. In one aspect the colouring is present in an amount of from 0.1 to 1% by weight of the solid cosmetic composition.

The solid product of the present invention may also comprise one or more cosmetically acceptable additives. The person skilled in the art is aware of a range of cosmetically acceptable additives which are suitable for incorporation into such compositions. For example, binders, fillers, opacifiers, perfumes, fragrances, decorative items and mixtures thereof.

It is particularly preferred that the composition of the present invention further comprises a fragrance. Preferably the fragrance is selected from essential oils. Preferably the fragrance, and more preferably the essential oil, is present in an amount of from 0.001 to 10 wt.% by weight of the solid cosmetic composition. Preferably the fragrance, and more preferably the essential oil, is present in an amount of from 0.01 to 10 wt.% by weight of the solid cosmetic composition. Preferably the fragrance, and more preferably the essential oil, is present in an amount of from 0.1 to 10 wt.% by weight of the solid cosmetic composition. Preferably the fragrance, and more preferably the essential oil, is present in an amount of from 1 to 10 wt.% by weight of the solid cosmetic composition. Preferably the fragrance, and more preferably the essential oil, is present in an amount of from 0.1 to 10 wt.% by weight of the solid cosmetic composition. Preferably the fragrance, and more preferably the essential oil, is present in an amount of from 0.1 to 8 wt.% by weight of the solid cosmetic composition. Preferably the fragrance, and more preferably the essential oil, is present in an amount of from 0.1 to 6 wt.% by weight of the solid cosmetic composition. Preferably the fragrance, and more preferably the essential oil, is present in an amount of from 1 to 8 wt.% by weight of the solid cosmetic composition. Preferably the fragrance, and more preferably the essential oil, is present in an amount of from 1 to 6 wt.% by weight of the solid cosmetic composition.

Fruit and herb extracts and juices, vegetable oils and essential oils are all compatible with the composition.

In one embodiment, the cosmetically acceptable additives are selected from the group consisting of essential oils, vitamins, fragrances, colourings, clays, decorative articles, and mixtures thereof The essential oils may be selected based on the fragrance desired, skin type to be treated and other effects desired based on the well-known properties of essential oils. The addition of essential oils, when taken in to the nose, are known to alter mood. For example, essential oils are known to create effects of drowsiness or stimulating the senses. Many well documented effects can be achieved by the use of essential oils.

In one embodiment, the one or more essential oils present in the solid product are selected from Tarragon, Lemon myrtle, Jasmin, Ylang ylang, Labdunum, Lemongrass, Rose otto, Grapefruit, Patchouli, Rosemary, Armois, Lemon, Neroli, Sweet violet, Lavender, Orange 50 fold, Vanilla, Peppermint, Benzoin, Hydrangia, Litsea Cubeba, Cardamon, Tonka, and Chamomile blue. In one embodiment, the one or more essential oils present in the solid product are selected from Tarragon, Lemon myrtle, Labdunum, and Lemon.

Vitamins, particularly B, C and E are very beneficial for the skin. Vitamin rich ingredients such as VVheatgerm oil can also be used to deliver vitamins on to the skin. In a one embodiment, the vitamins are selected from vitamin B, vitamin C, vitamin E and mixtures thereof. It will be appreciated by one skilled in the art that the vitamin may be provided from any suitable source. For example the vitamin(s) may be provided from a synthetic source or from incorporation into the solid product of a material, such as a natural material, that has a high vitamin content.

The ingredients in the present invention do not require cosmetic preservatives. The use of cosmetic preservatives can increase the potential to irritate the skin.

The decorative items which may be present in the solid product include items such as glitter, paper such as rice paper, sequins, dried or fresh flowers, herbs, vegetables, parts thereof or mixtures thereof. Other enhancing materials may also be incorporated Further preferred additive materials include vegetable oils, chocolate, herbs and spices, cosmetic colours (e.g. paprika, gardenia extract, D&C red no. 30), beans (e.g. aduki), fruit, fresh or dried (e.g. banana, avocado, mango, papaya, kiwi, raspberry, strawberry, blueberries, grapes, tomato, asparagus, or cucumber), honey, glycerin, cosmetic glitter, other vegetable butters (e.g. mango, avocado), clays (e.g. kaolin), starches (e.g. corn starch), popping candy and mixtures thereof.

The above ranges provide preferred amounts of each of the components. Each of these ranges may be taken alone or combined with one or more other component ranges to provide a preferred aspect of the invention.

In one aspect, the solid cosmetic composition has dispersed therein gas bubbles, and wherein the gas bubbles form 5 to 80% of the volume of the solid cosmetic composition. In other words, the product may be an aerated product. Such products may be prepared in accordance with the teaching of W02012/175970 or W02014/091196. In one aspect the gas bubbles form at least 10% of the volume of the solid cosmetic composition. In one aspect the gas bubbles form at least 20% of the volume of the solid cosmetic composition.

In one aspect the gas bubbles form at least 30% of the volume of the solid cosmetic composition. In one aspect the gas bubbles form at least 40% of the volume of the solid cosmetic composition. In one aspect the gas bubbles form at least 50% of the volume of the solid cosmetic composition. In a further aspect the gas bubbles form at least 60% of the volume of the solid cosmetic composition. In one aspect the gas bubbles form from 30% to 80% of the volume of the solid cosmetic composition. In one aspect the gas bubbles form from 40% to 80% of the volume of the solid cosmetic composition. In one aspect the gas bubbles form from 50% to 80% of the volume of the solid cosmetic composition. In one aspect the gas bubbles form from 20% to 70% of the volume of the solid cosmetic composition. In one aspect the gas bubbles form from 30% to 70% of the volume of the solid cosmetic composition. In one aspect the gas bubbles form from 40% to 70% of the volume of the solid cosmetic composition. In one aspect the gas bubbles form from 50% to 70% of the volume of the solid cosmetic composition. In one aspect the gas bubbles form from 60% to 70% of the volume of the solid cosmetic composition.

Process As discussed herein, the invention provides a process for the production of a solid cosmetic composition as defined herein comprising the steps of: (i) melting vegetable butter; 00 contacting the melted vegetable butter with the sodium bicarbonate and cream of tartar; and (iii) allowing the mixture of step (ii) to solidify.

The shape of the solid products of the present invention is not limited. It may be that the solid products are provided with a shape which would be aesthetically pleasing and/ or which aids in the use of the product. For example, it may be that the solid product is produced in such a manner so that it solidifies in a shape which is ergonomically acceptable to the user. Products which are approximately spherical, cuboidal or cylindrical are each envisaged. Therefore, in one embodiment of the process of the present invention, the mixture of step ii) is pressed into a mould, allowed to solidify, and then turned out to produce the solid product.

In one aspect, the solid product is tempered. The skilled person understands that the term tempered refers to a product which has undergone heat treatment in order to increase the shine and durability of a coating. It is well known that uncontrolled crystallisation of hard vegetable butters typically results in crystals of varying size resulting in a mottling of the surface and a dull appearance. Tempering the product of the present invention results in a coating which has an improved appearance and durability.

Tempering is achieved in the present invention by initially cooling the resultant product, reheating the product, and then cooling once more to achieve the finished solid cosmetic composition.

As described herein, the solid product may further comprise one or more cosmetically acceptable additives. In one embodiment, the process further comprises the step of combining with the mixture of step i) and/or step ii) one or more cosmetically acceptable additives as defined herein and/or the dispersant defined herein.

The present invention also provides a product obtained or obtainable by a process as described herein.

Method In one aspect of the present invention, there is provided a method comprising contacting the skin of a user with water in which the solid cosmetic composition as defined herein has been placed in, or has dissolved in, or in which the solid cosmetic composition as defined herein is dissolving. In a typical method, water is run in to the bath at an acceptable temperature. The user immerses their body in the water and the solid cosmetic composition is dropped into the water. The user then watches the effect of the product on the surface of the water as product dissolves and disperses its components such as colouring. The user then bathes in the water.

Example

The invention will now be described with reference to the following non-limiting example.

Batch size (g): 500.00 Formula Raw Material A 56.50 Illipe butter 282.50 B 14.00 Sodium laureth sulfate 35.00 5.00 Fragrance 25.00 0.20 D&C Orange 4 1.00 0.30 FD&C Red No 4 1.50 C 14.00 Sodium bicarbonate 70.00 D 10.00 Cream of tartar 50.00 100.00 Method 1 Melt A 2 Mix B components together 3 Add C to B and mix 4 Add D to BC and mix Add BCD to A and mix 6 Pour the product immediately into the mould It was found that the resultant product was solid and a vibrant red colour. No immediate melting was observed when the product was handled. The product was placed into a bath of 38°C water and it immediately began to melt on the surface of the water. A steady effervescence occurred aiding the dissolution of the product. The product remained buoyant until it had completely dissolved, leaving a layer of moisturising oil on the water's surface.

Various modifications and variations of the present invention will be apparent to those skilled in the art without departing from the scope and spirit of the invention. Although the invention has been described in connection with specific preferred embodiments, it should be understood that the invention as claimed should not be unduly limited to such specific embodiments. Indeed, various modifications of the described modes for carrying out the invention which are obvious to those skilled in chemistry, biology or related fields are intended to be within the scope of the following claims.

Claims

CLAIMS1. A solid cosmetic composition comprising (a) vegetable butter; (b) sodium bicarbonate; and (c) cream of tartar.
2. A solid cosmetic composition according to claim 1 wherein vegetable butter is present in an amount of from 25 to 80 wt.% based on the solid cosmetic composition.
3. A solid cosmetic composition according to claim 1 or 2 wherein vegetable butter is present in an amount of from 40 to 60 wt.% based on the solid cosmetic composition.
4. A solid cosmetic composition according to claim 1, 2 or 3 wherein the vegetable butter is selected from Cocoa butter, Illipe butter, Murumuru butter, Kokum butter, Aloe butter, Avocado butter, Cupuacu butter, Macadamia Nut butter, Mango butter, Olive butter, Shea butter, Coconut butter, Pumpkin Seed butter, Peanut butter, Almond butter, Coffee Bean butter, Refined butter, Hemp Seed butter, Mochacchino butter, Pistachio Nut butter, Shealoe butter, and mixtures thereof.
5. A solid cosmetic composition according to any one of claims 1 to 4 wherein the vegetable butter is at least Cocoa butter.
6. A solid cosmetic composition according to claim 5 comprising Cocoa butter in an amount of from 40 to 60 wt.% based on the solid cosmetic composition.
7. A solid cosmetic composition according to any one of claims 1 to 5 wherein sodium bicarbonate is present in an amount of from 2 to 30 wt.% based on the solid cosmetic composition.
8. A solid cosmetic composition according to any one of claims 1 to 7 wherein sodium bicarbonate is present in an amount of from 10 to 20 wt.% based on the solid cosmetic composition.
9. A solid cosmetic composition according to any one of claims 1 to 8 wherein cream of tartar is present in an amount of from 2 to 30 wt.% based on the solid cosmetic composition.
10. A solid cosmetic composition according to any one of claims 1 to 9 wherein cream of tartar is present in an amount of from 8 to 18 wt.% based on the solid cosmetic composition.
11. A solid cosmetic composition according to any one of claims 1 to 10 comprising (a) vegetable butter in an amount of from 25 to 80 wt.% based on the solid cosmetic composition; (b) sodium bicarbonate in an amount of from 2 to 30 wt.% based on the solid cosmetic composition; and (c) cream of tartar in an amount of from 2 to 30 wt.% based on the solid cosmetic composition.
12. A solid cosmetic composition according to any one of claims 1 to 11 comprising (a) vegetable butter in an amount of from 40 to 60 wt.% based on the solid cosmetic 15 composition; (b) sodium bicarbonate in an amount of from 10 to 20 wt.% based on the solid cosmetic composition; and (c) cream of tartar in an amount of from 8 to 18 wt.% based on the solid cosmetic composition. 20
13. A solid cosmetic composition according to any one of claims 1 to 12 further comprising a surfactant.
14. A solid cosmetic composition according to claim 13 wherein the surfactant is selected from polyoxyethers of lauryl alcohol, sodium lauroyl sarcosinate, N-lauroyl sarcosine, sodium lauryl sulfate, sodium laureth sulfate, sodium methyl cocoyl taurate, sodium dodecyl sulfate, sodium cocosulfate, ammonium lauryl sulfate, ammonium laureth sulfate, sodium myreth sulfate, sodium lauroyl sarcosinate, disodium laureth sulfosuccinate, sodium lauryl sulfoacetate, lauryl betaine, cocamidopropyl betaine, trimethyl glycine betaine, sodium cocoamphoacetate, disodium cocoamphodiacetate, sodium lauroamphoacetate, disodium lauroamphodiacetate, cocoamidopropyl hydroxysultaine, cetrimonium chloride, behentrimonium chloride, thereof and mixtures thereof.
15. A solid cosmetic composition according to claim 13 wherein the surfactant is selected from polyoxyethers of lauryl alcohol, sodium laureth sulphate, lauryl betaine and mixtures thereof.
16. A solid cosmetic composition according to any one of claims 13 to 15 wherein surfactant is present in an amount of from 2 to 30 wt.% based on the solid cosmetic composition.
17. A solid cosmetic composition according to any one of claims 13 to 16 wherein surfactant is present in an amount of from 10 to 20 wt.% based on the solid cosmetic composition.
18. A solid cosmetic composition according to any one of claims 1 to 17 further comprising a colouring.
19. A solid cosmetic composition according to any one of claims 1 to 18 further comprising at least one additional component selected from binders, fillers, opacifiers, perfumes, fragrances, decorative items, herbs, cereals, seaweed and mixtures thereof.
20. A solid cosmetic composition according to any one of claims 1 to 19 wherein the solid cosmetic composition has dispersed therein gas bubbles, and wherein the gas bubbles form 5 to 80% of the volume of the solid cosmetic composition.
21. A solid cosmetic composition according to any one of claims 1 to 20 wherein the composition is a bathing product.
22. A process for the production of a solid cosmetic composition as defined in any one of claims 1 to 21 comprising the steps of: (i) melting vegetable butter; (ii) contacting the melted vegetable butter with the sodium bicarbonate and cream of tartar; and (iii) allowing the mixture of step 00 to solidify. 30
23. A product obtained or obtainable by a process as defined in claim 22.
24. A cosmetic method comprising contacting the skin of a user with bathing water containing a solid cosmetic composition as defined in any one of claims 1 to 21.