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CN-121971310-A - Taurine surfactant oral care composition and preparation method thereof

CN121971310ACN 121971310 ACN121971310 ACN 121971310ACN-121971310-A

Abstract

The invention discloses a taurine surfactant oral care composition and a preparation method thereof, and in particular relates to the field of personal care products, wherein the taurine surfactant oral care composition comprises, by weight, 0.5-5.0% of taurine surfactant, 20-50% of friction agent, 15-35% of humectant, 0.5-2.5% of thickener, 0.05-0.5% of sweetener, 0.5-1.5% of spice, 0.1-0.3% of preservative, 0-2.0% of efficacy active, 0-2.5% of pH regulator and the balance of deionized water. The oral care composition with mild taste, fine and rich foam, excellent cleaning power and extremely low irritation to oral mucosa is successfully prepared by selecting the taurine surfactant with specific type and dosage and optimizing the compatibility of the taurine surfactant with components such as the friction agent, the thickening agent and the like, the problems of mucosa irritation, bad taste, gustatory interference and the like caused by the traditional SLS toothpaste are effectively solved, and meanwhile, the defects in the aspects of foam quality, cleaning power and system compatibility are overcome, and the process is simple and feasible and is suitable for industrial production.

Inventors

  • ZHU HONGJUN

Assignees

  • 张家港格瑞特化学有限公司

Dates

Publication Date
20260505
Application Date
20251231

Claims (9)

  1. 1. A taurine surfactant oral care composition characterized by comprising the following components in weight percent: 0.5 to 5.0 weight percent of taurine surfactant; 20-50 wt% of friction agent; 15-35 wt% of humectant; 0.5 to 2.5 weight percent of thickener; 0.05 to 0.5 weight percent of sweetener; 0.5 to 1.5 weight percent of spice; 0.1 to 0.3 weight percent of preservative; 0 to 2.0 weight percent of efficacy active substance; 0 to 2.5 weight percent of pH regulator; deionized water and the balance.
  2. 2. The oral care composition of claim 1, wherein the taurine surfactant is selected from one or more of sodium cocoyl methyl taurate, sodium cocoyl taurate, and sodium cocoyl methyl taurate.
  3. 3. The oral care composition of claim 1, wherein the abrasive is one or more of silica, dibasic calcium phosphate, calcium carbonate, and hydrated alumina.
  4. 4. The oral care composition of claim 1, wherein the humectant is one or more of glycerin, sorbitol, propylene glycol, and polyethylene glycol.
  5. 5. The oral care composition of claim 1, wherein the thickener is one or more of sodium carboxymethyl cellulose, hydroxyethyl cellulose, xanthan gum, carrageenan, and silica-thickened aerogel.
  6. 6. The oral care composition of claim 1, wherein the sweetener is selected from one or more of sodium saccharin, sucralose, stevioside, and xylitol, and the preservative is selected from one or more of sodium benzoate, potassium sorbate, and parabens.
  7. 7. The oral care composition of claim 1, wherein the efficacy active comprises at least one of anticaries, anti-sensitivity, and remineralizing actives, wherein the anticaries active is sodium fluoride and comprises 0.1% -0.15% fluoride ion.
  8. 8. The oral care composition of taurine surfactant according to claim 1, wherein the spice is one or more selected from peppermint essence, spearmint essence, fruit essence and herbal essence, and the pH regulator is one or more selected from citric acid, sodium citrate, phosphoric acid, disodium hydrogen phosphate, sodium dihydrogen phosphate and sodium hydroxide, and is used for regulating the pH value of the composition to 6.5-8.5.
  9. 9. A process for preparing a taurine surfactant oral care composition according to any one of claims 1 to 8, comprising the steps of: s1, preparing a liquid phase, namely mixing deionized water, a humectant, a sweetener and a preservative under the stirring condition, and stirring until the deionized water, the humectant, the sweetener and the preservative are completely dissolved to obtain a uniform liquid phase; S2, dispersing a surfactant, namely adding the taurine surfactant into the liquid phase obtained in the step S1 under stirring, heating to 40-50 ℃, and continuously stirring until the taurine surfactant is completely dissolved or uniformly dispersed to form a colloid solution; S3, thickening and preliminary mixing, namely adding a thickening agent into the colloidal solution obtained in the step S2 under stirring, and fully dispersing and swelling to form basic gel; s4, adding and homogenizing a solid phase, namely adding a friction agent into the basic gel obtained in the step S3 in batches under vacuum or shearing conditions, dispersing uniformly after each batch, and shearing and homogenizing at a high speed after all the friction agents are added to obtain a fine paste; S5, introducing post-addition components, namely adding the spice and the efficacy active substances into the paste obtained in the step S4, and uniformly stirring; and S6, degassing and ageing, namely carrying out vacuum degassing on the paste obtained in the step S5, and then standing and ageing to obtain the oral care composition.

Description

Taurine surfactant oral care composition and preparation method thereof Technical Field The invention relates to the technical field of personal care products, in particular to a taurine surfactant oral care composition and a preparation method thereof. Background Toothpaste is used as daily necessary oral care product, and has the core functions of cleaning teeth, maintaining oral health, preventing dental caries, refreshing breath and the like. In a complex formulation system of toothpaste, surfactants are core components that achieve key functions of cleaning, foaming, emulsifying, wetting, and the like. For a long time, the anionic surfactant sodium dodecyl sulfate (Sodium Lauryl Sulfate, SLS) has been dominant in the global toothpaste industry due to its excellent detergency, abundant foaming power and low cost. However, with the rise of consumer health consciousness and the refinement of product experience requirements, the inherent drawbacks of SLS are increasingly prominent, and have become a pain point for industry development. First, mucosal irritation problems are prominent. SLS has a strong degreasing ability and a protein denaturing effect, and may break the lipid barrier of the oral mucosa, resulting in xerostomia, mucosal burning sensation, abscission discomfort, and even studies have shown that recurrent aphtha ulcers (Recurrent Aphthous Ulcer, RAU) may be induced or aggravated, which makes the mouth-sensitive population, children and some adult consumers feel uncomfortable when using conventional toothpaste. Secondly, SLS often brings bad use mouthfeel, such as obvious astringent and spicy feel, affecting the oral feeling after brushing. Furthermore, SLS can temporarily interfere with taste receptors, resulting in a taste retardation or metallic off-flavors (often referred to as dentifrice flavors) occurring for a period of time after brushing, affecting the eating experience. In addition, some consumers with strong environmental protection awareness have concerns about SLS from petrochemical industry and environmental footprint thereof, and are more inclined to select natural and green components. To address these problems with SLS, toothpaste products claiming SLS-Free have appeared on the market and attempts have been made to replace with relatively mild surfactants such as sodium lauroyl sarcosinate, potassium cocoyl glycinate, alkyl glycosides (APG). However, these alternatives often have a comprehensive performance that is difficult to fully match that of SLS, and short plates exist that the foam quality (including fineness, richness, durability) is generally inferior to that of SLS, the cleaning and stain removal ability to exogenous stains (such as coffee stains and tea stains) needs to be further improved, compatibility with fluoride and certain functional active ingredients in toothpaste systems and long-term stability may be challenging, and in addition, the cost of part of mild surfactants is high, resulting in the improvement of the selling price of the final product, which limits the market popularization thereof. Thus, there is a need in the oral care industry to develop a new surfactant application regimen that provides an optimal balance of cleaning power, foam experience, mild irritation, mouthfeel of use, and compatibility with complex systems of toothpaste, while achieving cost controllability and environmental friendliness. Taurine surfactants, which are a class of amino acid type surfactants, are usually formed by condensing fatty acids derived from natural coconut oil with methyl taurine or taurine, belonging to the acyl taurate family. The surfactant has a plurality of attractive characteristics of 1) extremely high mildness, low molecular polarity and weak denaturation effect on skin and mucous membrane proteins, and has the irritation far lower than SLS (styrene-acrylate) through a plurality of researches, 2) excellent foaming and cleaning performances, capability of generating fine, stable and easy-to-wash foam, good emulsifying and detergency, 3) excellent compatibility, good compatibility with anticaries components such as sodium fluoride, nonionic and zwitterionic components and the like, and is beneficial to maintaining long-term stability of a formula system, and 4) green environmental protection property, wherein raw materials are mainly derived from renewable vegetable oil, accord with natural and green consumption trend, and have excellent biodegradability. Although taurine surfactants are superior in their own performance, their successful application to high solids, multi-component toothpaste systems and their full advantage to address the above-mentioned industry pain points is not a simple equivalent replacement. The preparation method involves a series of formulation and process technical challenges, namely the problem of dissolution and uniform dispersion of taurine surfactant in high-concentration inorganic abrasives and high-viscosity gel systems,