BR112019013094A2 - water-reducing shampoo composition and process for obtaining the same - Google Patents

Abstract

the present invention relates to the development of a shampoo with water reduction, providing a practical, sustainable and efficient product, applicable yield, cleaning and hydration to the hair strands. with consumers increasingly demanding and interested in unusual products, but with practicality and efficiency, there is a great motivation to develop a shampoo that takes up little space in terms of transport and storage and that is practical in the eyes of the consumer, without the need to change habits regarding the application of the product. in addition, the shampoo should show positive results in terms of acceptance by the public, cleaning power, beautifying the hair and hydrating the hair.

Description

COMPOSITION FOR SHAMPOO WITH WATER REDUCTION AND PROCESS FOR OBTAINING THE SAME

FIELD OF THE INVENTION [0001] The present invention relates to the development of a shampoo with water reduction, providing a practical, sustainable and efficient product, applicable yield, cleaning and hydration to the hair strands.

FUNDAMENTALS OF THE INVENTION [0002] The operating areas of the cosmetic industry are becoming increasingly diverse, ranging from the preparation of moisturizing emulsions to products for complex applications. With the constant growth of this sector and the increasing concern with the environment and natural resources, it is essential to present innovative, practical and sustainable products.

[0003] In relation to the cosmetic industry, the production and sale of perfumery articles, which include perfumes and colognes, cosmetics, such as makeup, body creams, nail polish and sunscreens and products are included in this segment. personal hygiene, which includes shampoos, conditioners, soaps, deodorants, among others.

[0004] The shampoos are available as liquids, gel, cream or mousse and have as main objective the cleaning and care of the hair, the secretion left by

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2/15 sebaceous glands (sebum) and residues present on the scalp due to air pollution and other products.

DESCRIPTION OF THE STATE OF THE TECHNIQUE [0005] Several studies have been carried out for new shampoo compositions, aiming at differentiated and attractive products for the final consumer.

[0006] The document BR 11 2016 005848-8 refers to a dry shampoo comprising a base and a propellant, different from the present invention, which is presented in powder.

[0007] A composition for improvement in shampoo, more specifically a powdered shampoo, is revealed through the document BR 10 2013 012152 5, however the document does not present any study that proves the effectiveness of the product, nor does it detail its method of obtaining .

OBJECTIVE OF THE INVENTION [0008] With consumers increasingly demanding and interested in unusual products, but with practicality and efficiency, there is a great motivation to develop a sustainable shampoo with water reduction and that occupies little space in terms of transport and storage and that be practical in the eyes of the consumer, without having to change their habits in relation to the application of the product. In addition, the shampoo should show positive results in terms of acceptance by the public, cleaning power, beautifying the hair and hydrating the hair.

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BRIEF DESCRIPTION OF THE FIGURES [0009] Fig. 1 represents a flow chart of the water reduction shampoo manufacturing process.

DETAILED DESCRIPTION OF THE INVENTION [00010] The present invention discloses a shampoo composition comprising the raw materials described below:

CITRIC ACID [00011] Citric acid is a weak organic acid that occurs naturally in human metabolism and can also be found in high concentrations in citrus fruits. It is a compound widely used in the food and cosmetics industries for various functions (EMFAL, 2015).

[00012] This acid and its potassium and sodium salts can be used as natural preservatives due to its chelating properties (except for alkaline earth) and antimicrobials (inhibits the growth of bacteria, bacilli and fungi). Citric acid also has a strong antioxidant action, being widely used in anti-aging creams (COSMETICS INFO, 2016).

[00013] In addition, citric acid is one of the main pH regulating agents applied in cosmetic formulations for the skin and hair. It presents high solubility in water, being easily incorporated into formulations in the form of a solution (COSMETICS INFO, 2016).

DIETANOLAMIDE OF COCONUT FATTY ACIDS

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4/15 [00014] Coconut fatty acid diethanolamide (or Cocamide DEA) is a mixture of fatty acid diethanolamides found in coconut oil, such as lauric, mistyric, palmitic, among others (NETO et al, 2013). Cocamide DEA is a nonionic surfactant widely used in cosmetic formulations for its action as an overfat, thickener and foam stabilizer. Fatty acid diethanolamides are generally used as co-surfactants, mainly in association with sulfated fatty alcohols and ethoxylated fatty alcohols, due to the interaction of the amide group with the anions of anionic surfactants, providing system thickening and foam stability (MAPRIC, 2016 ). In addition, they have an excellent ability to solubilize plant extracts and provide conditioning to the hair (NETO et al, 2013).

[00015] This raw material can be obtained from the condensation reaction of diethanolamine with coconut fatty acids, with the methyl ester of coconut fatty acid and even with coconut oil itself, at temperatures up to 170 ° and at presence of alkaline catalyst (NETO et al, 2013).

COCOAMIDOPROPRIL BETAINE [00016] Cocoamidopropril Betaine (CAPB) is an amphoteric surfactant, widely used in the formulation of shampoos, soaps and shower gels due to its compatibility with anionic, cationic and non-ionic surfactants. Has hydrophilic character due to the group

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5/15 betainico of its molecule and lipophilic character coming from its carbonic chain derived from coconut fatty acid. CAPB can be obtained synthetically by the condensation reaction of coconut oil with dimethylpropylamine (OXITENO, 2011).

[00017] This raw material gives the product properties such as low irritability to the eyes and skin, improves touch, increases viscosity and provides greater foam stability. In shampoos, it is common to use Cocoamidopropyl Betaine in association with anionic surfactants such as Sodium Lauryl Ether Sulfate, providing greater potential for cleaning and thickening the formulation, creaminess of the formed foam and hair conditioning (FAGRON, 2016).

ISOESTEARILO HIDROXIESTEARATO [00018] It is an emollient commonly used in cosmetic formulations such as moisturizing lotions, hair products and makeup. It has a soft and buttery texture, making it a good viscosity donating agent, non-stick and anti-grease. It provides good spreadability and flow properties and liquefies when in contact with the skin (LUBRIZOL, 2016).

LACTOSE [00019] Lactose is a biological polymer made up of natural monomers. It is a disaccharide (ether of two monosaccharides or simple sugars), formed by a glucose unit and a galactose unit (ABRUTYN, 2016).

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6/15 [00020] Monosaccharides, disaccharides and related ingredients have numerous functions reported in cosmetics, being the most common use as emollients and skin moisturizing agents. They are also typically used as rheology modifiers, bulking agents, film-forming, scrubs, among others. Lactose is widely used as a support, diluent and flow aid for dry powder and direct compression formulations (CIR, 2014).

METHYL GLUCOSE CAPRILATE

[00021] It is a thickener not ionic extremely effective, mainly used in products hygiene folks like shampoos and soaps liquids facials and bodily effects. Derivative maize ( 93% derivative vegetable in pasta) its about an ester in glucose methyl not ethoxylated, esterified with acids capricious, caprylic and oleic is provided as a light yellow liquid

(PROSPECTOR, 2016).

[00022] This binder is compatible with a wide range of surfactant systems (both ethoxylated and non-ethoxylated), being ideal for formulations where properties such as clarity and smoothness are required. It is completely cold processable and can reduce the total cost of the formulation since it is supplied with 80% of total solids by mass (LUBRIZOL, 2016).

METHILISOTIAZOLINONE [00023] Methylisothiazolinone is a heterocyclic organic compound used as a preservative in

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7/15 cosmetic and personal care products. It presents itself as a colorless, clear liquid, with a mild odor and completely soluble in water. It also has good solubility in acetonitrile, methanol and hexane and low penetration into the skin (CIR, 2010).

[00024] This preservative is generally recommended for use in rinsed products, such as soaps and shampoos. Its use is restricted to low concentrations (up to 0.01%), which prevents skin sensitization, but does not interfere with its preservation efficacy (CIR, 2010).

PEG-8 (POLYETHYLENOGLYCOL) [00025] Polyethylene glycols are condensation polymers of ethylene oxide with water or ethylene glycol and derivatives, used for various purposes in cosmetic formulations, depending on their molecular weight (CIR, 2010). By varying the molecular weight, liquid or solid products can be obtained, covering a wide range of viscosity and consistency (MAPRIC, 2016).

[00026] PEG-8 has applications as a humectant, fragrance fixative, consistency agent, viscosity regulator and antistatic agent. It is a hygroscopic polymer, very soluble in water thanks to the hydrophilic characteristic of the polyoxyethylene chain. It is widely used in formulations of creams, moisturizing lotions, shampoos, makeup and soaps (SPECIALCHEM, 2016).

SODIUM BICARBONATE

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8/15 [00027] Sodium bicarbonate consists of a white, odorless crystalline powder with a slightly alkaline flavor. It is generally used in pharmaceutical formulations as a source of carbon dioxide in tablets and granules. It is also used to maintain or produce an alkaline pH in preparations (MAPRIC, 2016).

[00028] Sodium bicarbonate has an antiseptic action, limiting bacterial proliferation by alkalinizing the medium. In cosmetic formulations, it functions as an effervescent agent, form agent, cleaning agent, abrasive, among others. It brings several benefits to facial soap, exfoliating, toothpaste and shampoo formulations (MAPRIC, 2016).

SODIUM LAURIL ETER SULFATE [00029] Sodium Lauryl Ether Sulfate (LESS) is one of the most widely used anionic surfactants in the cosmetics and personal care industry. This can be attributed to its good cost benefit and high compatibility with the vast majority of surfactants and ingredients used in this type of formulation. It is a component widely used in the manufacture of shower gels, toothpastes, shampoos and others (OXITENO, 2016).

[00030] LESS is a sodium alkyl sulfate obtained from the reaction between ethoxylated saturated fatty alcohols and sulfur trioxide, followed by alkaline neutralization. The increase in ethylene oxide content increases the resistance to water hardness and decreases the power

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9/15 irritant of these surfactants when compared to non-ethoxylated lauryl sulfates (OXITENO, 2016).

[00031] Among its various uses are emulsifiers, cleaning agents and foam stabilizers. Associated with other surfactants, such as betainics, they produce mild formulations, of low irritability and high performance (FAGRON, 2016).

WATER [00032] Water is present in the formulation of virtually all classes of cosmetic and personal care products. Used mainly as a solvent, it dissolves most of the important ingredients for skin, as cleansing and moisturizing agents (COSMETICS INFO, 2016).

[00033] Water is found in the compositions of lotions, creams, liquid soaps, deodorants, makeup, shampoos, conditioners, among many others (COSMETICS INFO, 2016).

MANUFACTURING PROCESS [00034] In the water reduction shampoo manufacturing process, the raw materials are divided into three phases, as shown in table 1:

Table 1: List of Raw Materials

Phase Feedstock Occupation Phase A Lactose Emollient LESS Surfactant anionic

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Bicarbonate of sodium Agent effervescent Citric acid PH regulator Phase B Isostearyl hydroxystearate Emollient Methyl glucose caprylate Binder - Binder Cocoamidopropril betaine Surfactant amphoteric PEG-8 Humectant Coconut fatty acid diethanolamide Foaming agent Methylisothiazolinone Preservative Phase C Water Solvent Fragrance Odor

[00035] For Phase A, solid raw materials are weighed on an analytical balance, in the following proportions:

15.00% to 20.00% sodium lauryl ether sulfate;

25.00% to 30.00% sodium bicarbonate;

12.00% to 16.00% lactose;

20.00% to 26.00% citric acid, and mixed in a beaker.

[00036] In parallel, for Phase B, all liquid raw materials, with the exception of water and fragrance, are weighed and mixed in another beaker, in the following proportions:

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1.00% to 5.00% of diethanolamide in acids fatty coconuts; 0.50% at 3.00% in caprilato in methyl glucose; 1.00% at 5.00% in hydroxystearate

isostearyl;

2.00% The 4.00% in cocoamidopropyl betaine; 0.00% The 0.10% in methylisothiazolinone; 0.50% The 4.50% in PEG-8.

[00037] For phase C, mix from 0.05% to 0.15%

fragrance it's from 2.00% to 10.00% deionized water. [00038] THE phase A ( s phase B are joined, homogenizing under agitation manual, with aid from an drumstick. [00039] In then add up the phase ç, slowly, under agitation constant, assisting The compaction of solid raw materials and liquid,

forming a solid and homogeneous mixture, but with a little moisture.

[00040] Said mixture must rest between 30 to 60 minutes before going through the screening process, avoiding losses in this process due to its humidity.

[00041] The screening process is done using a 40 - 425 micron mesh sieve so that all the particles of the powdered shampoo are uniform and, after the same, the product is ready for filling.

TEP TESTS (PRELIMINARY STABILITY TEST)

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12/15 [00042] Some tests were carried out to determine the stability and quality of the final product, hydrogen potential, organoleptics, humidity, water activity and shelf life.

A) Hydrogenionic potential test:

[00043] The measurements of hydrogen potential were carried out using two types of samples: foam produced by mixing the present shampoo with water and a 1% solution of the shampoo.

[00044] The equipment used was previously calibrated with the standard solutions of pH 4.00 and 7.00, and then the electrode was removed from the potassium chloride protective solution and washed with distilled water. The electrode was immersed in the sample analyzed and the value displayed on the electronic panel was recorded after stabilization.

[00045] Duplicate tests were performed for each type of sample, obtaining the following pHs for the two samples prepared, according to Table 2.

Table 2

Foam 1% solution 5.64 5.47 5.66 5.46

[00046] In all cases, it is observed that the pH range is between 5.00 and 6.00, which indicates that the product is suitable for use on the scalp.

B) Organoleptic test:

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13/15 [00047] To perform the organoleptic tests of the shampoo with water reduction, natural hair from three different individuals was used and the amount of 1.5 grams of product was defined.

[00048] The dirty wires were wetted with shower water, the product was applied directly to the scalp and the massage process started with the formation of foam, enabling the distribution of the product and the consequent washing of the hair.

[00049] Both in synthetic hair and natural hair, it was noticed that the threads were clean and free of residues and particles of products, acquired a hydrated and soft appearance. It was also found that the foam presented itself properly and in a good quantity, which facilitated the spread and application of the product on the hair strands.

C) Moisture test:

[00050] The humidity test was done in duplicate in order to verify if the amount of water indicated in the equipment reading is similar to the amount of water used in the formulation and thus, determine the losses of the process and the product. In addition, moisture is related to its stability, which can affect storage, packaging and processing.

[00051] For this analysis the Gravimetric method was used. This method consists of a quantitative analysis that allows to know the quantity of a substance in a given mixture. Its process involves separation and

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14/15 weighing an element or a compound of the element in the purest form possible, using the mass of the pure substance to determine how much of it contained in the sample.

[00052] After drying the shampoo for 3 minutes at a temperature of 60 ° C, the equipment indicated the following moisture contents, shown in Table 3.

Table 3

Test Moisture content (%) 1 2.35 2 2.37

[00053] It was noted that the average moisture value obtained was 2.36, with a water loss of less than 5.0% in relation to the water present in the product formulation.

D) Water activity test:

[00054] The water activity test was carried out in order to determine if there is a possibility of proliferation of microorganisms in the product. In addition, according to the Cosmetics Quality Guide, published by ANVISA, the microbiological evaluation allows to verify if the choice of the preservative system is adequate, or if the occurrence of interactions between the components of the formulation may impair its effectiveness.

[00055] The analysis was done in duplicate, at a constant temperature of 25 ° C.

[00056] The duplicate results of the water activity test are shown in Table 4.

Table 4

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Test Water activity 1 0.715 0.716 0.715 2 0.715 0.714 0.715

[00057] It was observed that the average value of water activity was around 0.715, with only the possible presence of molds and proving the use of preservative in the shampoo. In addition, the preservative to be used must have properties capable of combating the proliferation of this type of microorganism in a way that does not impair the product's effectiveness.

[00058] As a result of the formulation tests, a powdered shampoo was obtained with 95% water reduction compared to conventional shampoos found in the markets. In addition, all the studies involved have made it possible to obtain an innovative and sustainable product, proving that it is a safe and effective cosmetic product.

Claims (5)

1.00% to 5.00% isostearyl hydroxystearate; 1. COMPOSITION FOR SHAMPOO WITH REDUCTION OF WATER, characterized by understanding: a) Phase A: 15.00% to 20.00% sodium lauryl ether sulfate; 25.00% The 30.00% in sodium bicarbonate; 12.00% The 16.00% in lactose; 20.00% The 26.00% in Citric acid; b) Phase B 1.00% The 5.00% in acid diethanolamide coconut fat; 0.50% to 3.00% methyl glucose caprylate; 2/2 2. COMPOSITION FOR SHAMPOO WITH REDUCTION OF WATER, according to claim 1, characterized by the pH being in the range of 5.00 and 6.00. Petition 870190058152, of 06/24/2019, p. 32/35 2.00% to 10.00% deionized water. 2.00% to 4.00% cocoamidopropyl betaine; 0.00% to 0.10% of methyl isothiazolinone; 0.50% to 4.50% PEG-8; c) Phase C: 0.05% to 0.15% fragrance; 3. COMPOSITION FOR WATER REDUCED SHAMPOO, according to claim 1, characterized by an average humidity value of 2.36%. 4. COMPOSITION FOR WATER REDUCED SHAMPOO, according to claim 1, characterized by presenting 95% water reduction. 5. PROCESS FOR OBTAINING OF SHAMPOO WITH REDUCTION OF WATER, characterized by understanding the next phases: The) weigh each raw material gives Phase A in balance analytical and mix in a beaker; B) weigh each raw material gives Phase B in balance analytical and mix in a beaker; ç) weigh each raw material gives Phase C in balance analytical and mix in a beaker; d) mix Phase A with Fa if B, under manual agitation, until complete homogenization; e) add Phase C slowly, under constant agitation, until a solid homogeneous mixture is formed; f) let the homogeneous solid mixture rest for 30 to 60 minutes; g) sifting the homogeneous solid mixture; h) bottling.