A kind of thickener and its application for improving the stability of oral composition containing zinc salt
An oral composition and thickener technology, applied in the field of oral care, can solve the problems of easy degradation of the thickener, water separation of the toothpaste, and instability of the toothpaste, so as to improve the electrolyte resistance, increase the stiffness, improve the The effect of tolerance
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Embodiment 1
[0026] A thickener for improving the stability of oral compositions containing zinc salts, comprising sodium carboxymethylcellulose and xanthan gum, the degree of substitution of sodium carboxymethylcellulose is 1.0 to 1.1; the carboxymethylcellulose The mass ratio with xanthan gum is 3:7. Carboxymethyl cellulose has a viscosity of 1100mPa.s.
[0027] In parts by weight, the components of the toothpaste are as follows:
[0028]
[0029] Toothpaste prepared as follows:
[0030] (1) adding sodium saccharin and sodium benzoate into water and stirring to dissolve;
[0031] (2) Add thickener and PVM / MA copolymer into sorbitol and stir evenly, add PEG-400 and stir evenly;
[0032] (3) Add the homogeneous solution of step (2) to the solution of step (1) and stir evenly;
[0033] (4) zinc citrate is added in the solution of step (3) and stirred;
[0034] (5) Sodium lauryl sulfate is added in the hydrated silica and stirred evenly;
[0035] (6) Add the uniform powder of step (5)...
Embodiment 2
[0039] A thickener for improving the stability of oral compositions containing zinc salts, comprising sodium carboxymethylcellulose and xanthan gum, the degree of substitution of sodium carboxymethylcellulose is 1.0 to 1.1; the carboxymethylcellulose The mass ratio with xanthan gum is 7:3. Carboxymethyl cellulose has a viscosity of 1100mPa.s.
[0040] In parts by weight, the components of the toothpaste are as follows:
[0041]
[0042] Adopt the method for embodiment 1 to make toothpaste. The high temperature was 45°C for 7 days, 15 days, 1 month, 2 months, and 3 months respectively. The stability results are shown in Table 1.
Embodiment 3
[0044] A thickener for improving the stability of an oral composition containing zinc salt, comprising sodium carboxymethylcellulose, xanthan gum and propolis, the degree of substitution of sodium carboxymethylcellulose is 1.0-1.1; the carboxymethyl The mass ratio of cellulose, xanthan gum and propolis is 1:1:1 sodium carboxymethyl cellulose, and its viscosity is 1100mPa.s.
[0045] In parts by weight, the components of the toothpaste are as follows:
[0046]
[0047] Adopt the method for embodiment 1 to make toothpaste. The high temperature was 45°C for 7 days, 15 days, 1 month, 2 months, and 3 months respectively. The stability results are shown in Table 1.
[0048] The present invention is to verify the effect of the thickener of the present invention, specially set up the comparative verification of comparative example, verification experiment is as follows:
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Abstract
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