A kind of oral care composition containing baking soda and its preparation method and application

Abstract

The present invention provides an oral care composition containing baking soda and a preparation method and application thereof. The oral care composition contains baking soda, zeolite and hydroxypropyl methylcellulose, and the weight ratio of baking soda to zeolite is 1:( 1~3), the weight ratio of baking soda and hydroxypropyl methylcellulose is 1:(0.02~0.2), the oral care composition provided by the present invention can be applied to the preparation of oral care products, and its dosage is the oral care products 5% to 35% of the total weight, the oral care composition provided by the present invention makes the baking soda encapsulated in the zeolite cavity through a special preparation process, effectively reducing the free baking soda content in the product composition, so that the content of the oral care composition in the product composition contains a sufficient amount of small soda. When baking soda, the formula maintains good stability, is not easy to decompose and flatulence, and the addition of hydroxypropyl methylcellulose makes the baking soda remain in the oral cavity for a long time, and penetrates into the teeth to rub and contact, which can deeply clean the oral cavity, whiten and strengthen the teeth. and gingival care.

Description

technical field [0001] The present invention relates to an oral care product, in particular to an oral care composition containing baking soda and a preparation method and application thereof. Background technique [0002] Teeth whitening has become an important part of human oral health, and consumers are increasingly demanding the efficacy of oral care products. Due to its physical whitening effect, oral care products added with baking soda have been popular in recent years. , especially the baking soda toothpaste. Because the baking soda is slightly soluble in water, part of the baking soda soluble in water can remove the soft scale and grease on the surface of the teeth, while the part that is insoluble in water can act as a friction agent to help remove the surface of the teeth stains. However, in order to achieve a significant whitening effect, the amount of baking soda added should be above the saturation level, but when the amount is too large, due to the relativel...

AI Technical Summary

Problems solved by technology

However, in order to achieve a significant whitening effect, the amount of baking soda added should be above saturation, but when the amount is too large, because the NaHCO3 content is relatively high, and its aqueous solution is easy to decompose, resulting in an increase in the salt content of the system and high alkalinity, which prevents The degree of disaggregation of sodium carboxymethyl cellulose makes the formulation binder ineffective, making the formulation unstable; on the other hand, NaHCO3 has a very active HCO3-ion. When NaHCO3 is dissolved in an aqueous solution, the HCO3-ion will react with H2O , slowly release CO2 gas, causing the paste of the toothpaste to swell, and adding a large amount of baking soda will also affect the taste and produce a bitter feeling

[0003] Baking soda toothpaste currently on the market does not contain enough baking soda, the residual time in the mouth is short, and the whitening effect is not significant, but the toothpaste with high content is prone to insufficient stability of the paste and bitter taste.

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