Whitening soap and preparation method thereof

Abstract

The invention provides whitening soap and a preparation method thereof, and belongs to the technical field of daily chemical products, the whitening soap comprises the following raw materials by weight: 98.5-99.17% of soap grains, 0.05-0.1% of a synergist, 0.2-0.5% of titanium dioxide, 0.5-1% of essence, and 0.08-0.1% of bright blue ink. According to the whitening soap and the preparation method thereof provided by the invention, the whitening soap is high in soap body whiteness and stable in soap body whiteness, and the effects of whitening and bleaching fabrics are improved, so that white fabrics are whiter, and colorful fabrics are brighter.

Description

Technical Field

[0001] The invention relates to the technical field of daily chemical products, and in particular to a whitening soap and a preparation method thereof. Background Art

[0002] Laundry soap is a traditional laundry product. It is a sodium salt of fatty acid generated by a series of reactions between animal fats or vegetable fats and caustic soda. It is mainly composed of sodium fatty acid, alkali, water, additives, etc. It is a typical anionic surfactant. However, laundry soap is not resistant to hard water. When it encounters sodium salt or magnesium salt in hard water, it will generate substances that are difficult to dissolve in water and deposit in the gaps between clothing fibers to form soap scum, which can easily make white and light-colored clothing turn yellow and fade.

[0003] Whitening soap is a soap-based cleaning product whose main ingredient is sodium fatty acid. It is added with detergents such as bleach and fluorescent brighteners. It is particularly effective in washing white fabrics, leaving them white and refreshing in appearance, and is therefore recognized by consumers.

[0004] The Chinese patent with publication number CN104232373A and name of "Colored Bleaching and Whitening Laundry Soap" discloses a colored bleaching and whitening laundry soap prepared with pure natural plant oils and fats and its preparation method. The effective ingredients of the formula are sweet almond oil, camellia oil, coconut oil, palm oil, sodium hydroxide, sodium tetraborate, sodium percarbonate, lemongrass essential oil, etc., which are prepared by a special saponification process. The purpose of the above invention is to provide a bleaching soap that can effectively bleach and remove various stains such as sweat stains, yellow spots, fruit stains, vegetable stains, urine stains, red wine stains, milk stains, etc., and can also be used to pre-treat stubborn stains on collars and cuffs. However, the above technical solution uses a variety of plant oils and fats, and the whiteness of the soap body is unstable. Summary of the invention

[0005] In view of this, the present invention provides a whitening soap and a preparation method thereof, which can achieve high whiteness of the whitening soap and stable whiteness of the soap body, improve the effect of whitening and bleaching fabrics, make white fabrics whiter, and make colored fabrics more colorful.

[0006] To achieve the above object, the present invention provides a whitening soap, comprising the following raw materials in weight percentage: 98.3-99.17% soap particles, 0.05-0.1% synergist, 0.2-0.5% titanium dioxide, 0.5-1% flavor, and 0.08-0.1% brilliant blue ink.

[0007] Optionally, the soap particles are complex soap bases, which include potassium ricinoleate and sodium tea seed oil.

[0008] Optionally, the weight ratio of potassium ricinoleate and sodium camellia oil is (2-3): (7-8).

[0009] Optionally, the synergist is microencapsulated sodium percarbonate.

[0010] Optionally, the microencapsulated sodium percarbonate comprises the following preparation steps: dispersing sodium percarbonate powder in a sodium alginate solution, performing a primary coating by electrostatic spraying, and then immersing in a chitosan-acetic acid solution for cross-linking to form microcapsules.

[0011] Optionally, the concentration of the sodium alginate solution is 1.5-3%; the pH of the chitosan-acetic acid solution is 5-6.

[0012] Optionally, the mass ratio of sodium percarbonate powder to sodium alginate solution is 1:(2~4).

[0013] In order to achieve the above-mentioned purpose, the present invention also provides a preparation method of the above-mentioned whitening soap, comprising the following steps: weighing each raw material, crushing the soap particles and mixing them with titanium dioxide, adding a synergist, a flavor and a brilliant blue ink in sequence, mixing them evenly and grinding and refining them to obtain a soap material, injecting the soap material into a mold, cutting it after molding and curing, and packaging it to obtain the whitening soap.

[0014] The above technical solution of the present invention includes at least the following beneficial effects: The whitening soap prepared by the present invention and the preparation method thereof ensure that the whitening soap has high whiteness by adding brilliant blue ink as an auxiliary agent in the formula and coordinating with the preparation process. Furthermore, when the synergist is microencapsulated sodium percarbonate, the microencapsulated sodium percarbonate gradually releases active oxygen under alkaline conditions, and has sustainable whitening and bleaching effects. In addition, during long-term storage and use, the whiteness of the soap body remains stable, thereby improving the aesthetics and practicality of the product. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in combination with the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0016] Example 1 Take 98.5% soap particles, 0.05% synergist, 0.5% titanium dioxide, 0.85% flavor, and 0.1% brilliant blue ink. The soap particles are a mixture of commercially available sodium salts of fatty acids; the synergist is model CBW-02 produced by Shaanxi Petrochemical Research Institute; the titanium dioxide model is R-930; the brilliant blue ink is commercially available; the flavor is produced by Shanghai Givaudan, model 636#.

[0017] The above raw materials are weighed and set aside, the soap particles are crushed with a pulverizer, mixed with titanium dioxide in a blender, and synergist, flavor and brilliant blue ink are added in sequence, each time a raw material is added, stirred for 10 minutes, and then ground and refined with a grinder to obtain soap material. The soap material is injected into a mold, cut after forming and solidifying, and packaged to obtain whitening soap.

[0018] Example 2 Take 98.3 soap particles, 0.1% synergist, 0.5% titanium dioxide, 1% flavor, and 0.1% brilliant blue ink. The soap particles are potassium ricinoleate: sodium tea oil in a ratio of 3:7; the synergist is microencapsulated sodium percarbonate; the titanium dioxide model is R-930; the brilliant blue ink is commercially available; the flavor is produced by Shanghai Givaudan, model #636.

[0019] Microencapsulated sodium percarbonate includes the following preparation steps: dispersing 1 kg of sodium percarbonate powder and 3 kg of sodium alginate solution in a high-speed shear emulsifier at 8000 rpm for 10 minutes, the concentration of the sodium alginate solution is 2% (w / v), and the initial layer coating is performed by electrostatic spraying, and the classic spray parameters are voltage: 12-18 kV; nozzle diameter: 0.5 mm; receiving distance: 15 cm; ambient humidity: ≤30%; and then immersed in chitosan-acetic acid solution for cross-linking, the pH value of the chitosan-acetic acid solution is 5, to form microcapsules.

[0020] The above raw materials are weighed and set aside, the soap particles are crushed with a pulverizer, mixed with titanium dioxide in a blender, and synergist, flavor and brilliant blue ink are added in sequence, each time a raw material is added, stirred for 5 minutes, and then ground and refined with a grinder to obtain soap material. The soap material is injected into a mold, cut after forming and solidifying, and packaged to obtain whitening soap.

[0021] Example 3 Take 98.3% soap particles, 0.1% synergist, 0.5% titanium dioxide, 1% flavor, and 0.1% brilliant blue ink. The soap particles are potassium ricinoleate: sodium tea seed oil in a ratio of 2:8; the synergist is microencapsulated sodium percarbonate; the titanium dioxide model is R-930; the brilliant blue ink is commercially available; the flavor is produced by Shanghai Givaudan, model #636.

[0022] Microencapsulated sodium percarbonate includes the following preparation steps: dispersing 1 kg of sodium percarbonate powder and 2 kg of sodium alginate solution in a high-speed shear emulsifier at 8000 rpm for 10 minutes, the concentration of the sodium alginate solution is 1.5% (w / v), and the initial layer coating is performed by electrostatic spraying, and the classic spray parameters are voltage: 12-18 kV; nozzle diameter: 0.5 mm; receiving distance: 15 cm; ambient humidity: ≤30%; and then immersed in chitosan-acetic acid solution for cross-linking, the pH value of the chitosan-acetic acid solution is 6, to form microcapsules.

[0023] The above raw materials are weighed and set aside, the soap particles are crushed with a pulverizer, mixed with titanium dioxide in a blender, and synergist, flavor and brilliant blue ink are added in sequence, each time a raw material is added, stirred for 8 minutes, and then ground and refined with a grinder to obtain soap material. The soap material is injected into a mold, cut after forming and solidifying, and packaged to obtain whitening soap.

[0024] Example 4 Take 99.15% soap particles, 0.05% synergist, 0.2% titanium dioxide, 0.5% flavor, and 0.1% brilliant blue ink. The soap particles are potassium ricinoleate: sodium tea oil in a ratio of 3:7; the synergist is microencapsulated sodium percarbonate; the titanium dioxide model is R-930; the brilliant blue ink is commercially available; the flavor is produced by Shanghai Givaudan, model #636.

[0025] Microencapsulated sodium percarbonate includes the following preparation steps: dispersing 1 kg of sodium percarbonate powder and 4 kg of sodium alginate solution in a high-speed shear emulsifier at 8000 rpm for 10 minutes, the concentration of the sodium alginate solution is 3% (w / v), and the initial layer coating is performed by electrostatic spraying, and the classic spray parameters are voltage: 12-18 kV; nozzle diameter: 0.5 mm; receiving distance: 15 cm; ambient humidity: ≤30%; and then immersing in chitosan-acetic acid solution for cross-linking, the pH value of the chitosan-acetic acid solution is 5.5, to form microcapsules.

[0026] The above raw materials are weighed and set aside, the soap particles are crushed with a pulverizer, mixed with titanium dioxide in a blender, and synergist, flavor and brilliant blue ink are added in sequence, each time a raw material is added, stirred for 6 minutes, and then ground and refined with a grinder to obtain soap material. The soap material is injected into a mold, cut after forming and solidifying, and packaged to obtain whitening soap.

[0027] Example 5 Take 99% soap particles, 0.08% synergist, 0.32% titanium dioxide, 0.52% flavor, and 0.08% brilliant blue ink. The soap particles are potassium ricinoleate: sodium tea oil in a ratio of 3:7; the synergist is microencapsulated sodium percarbonate; the titanium dioxide model is R-930; the brilliant blue ink is commercially available; the flavor is produced by Shanghai Givaudan, model #636.

[0028] Microencapsulated sodium percarbonate includes the following preparation steps: dispersing 1 kg of sodium percarbonate powder and 4 kg of sodium alginate solution in a high-speed shear emulsifier at 8000 rpm for 10 minutes, the concentration of the sodium alginate solution is 3% (w / v), and the initial layer coating is performed by electrostatic spraying, and the classic spray parameters are voltage: 12-18 kV; nozzle diameter: 0.5 mm; receiving distance: 15 cm; ambient humidity: ≤30%; and then immersing in chitosan-acetic acid solution for cross-linking, the pH value of the chitosan-acetic acid solution is 5.5, to form microcapsules.

[0029] The above raw materials are weighed and set aside, the soap particles are crushed with a pulverizer, mixed with titanium dioxide in a blender, and synergist, flavor and brilliant blue ink are added in sequence, each time a raw material is added, stirred for 6 minutes, and then ground and refined with a grinder to obtain soap material. The soap material is injected into a mold, cut after forming and solidifying, and packaged to obtain whitening soap.

[0030] Comparative Example 1 Compared with Example 1, the only difference is that bright blue ink is not used, and the other raw materials and preparation methods are the same.

[0031] The soap whiteness test and soap whiteness stability test were performed on Examples 1 to 5 and Comparative Example 1, and Table 1 was obtained.

[0032] For the soap whiteness test method, please refer to the national standard GB / T 17749-2008 "Expression of whiteness", and the test instrument is a colorimeter: HunterLab ColorQuest XE, to obtain whiteness; The soap whiteness stability test method is to test the whiteness at room temperature for 7 days, 14 days, 21 days and 28 days for comparison.

[0033] Table 1 Table of test results of soap whiteness related to Examples 1 to 5 and Comparative Example 1

[0034] It can be seen from Table 1 that the whitening soap provided by the present invention has high whiteness and high soap whiteness stability.

[0035] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A whitening soap, characterized in that The invention comprises the following raw materials in weight percentage: 98.3-99.17% of soap particles, 0.05-0.1% of synergist, 0.2-0.5% of titanium dioxide, 0.5-1% of essence and 0.08-0.1% of brilliant blue ink.

2. The whitening soap according to claim 1, characterized in that The soap particles are complex soap bases, which include potassium ricinoleate and sodium tea seed oil.

3. The whitening soap according to claim 2, characterized in that The weight ratio of potassium ricinoleate to sodium camellia oil is (2-3): (7-8).

4. The whitening soap according to claim 1, characterized in that The synergist is microencapsulated sodium percarbonate.

5. The whitening soap according to claim 4, characterized in that The microencapsulated sodium percarbonate comprises the following preparation steps: dispersing sodium percarbonate powder in sodium alginate solution, performing a primary coating by electrostatic spraying, and then immersing in chitosan-acetic acid solution for cross-linking to form microcapsules.

6. The whitening soap according to claim 5, characterized in that The concentration of the sodium alginate solution is 1.5-3%; the pH of the chitosan-acetic acid solution is 5-6.

7. The whitening soap according to claim 5, characterized in that The mass ratio of sodium percarbonate powder to sodium alginate solution is 1:(2~4).

8. A method for preparing a whitening soap as claimed in any one of claims 1 to 7, characterized in that: The method comprises the following steps: weighing various raw materials, crushing soap particles and mixing them with titanium dioxide, sequentially adding a synergist, an essence and a brilliant blue ink, mixing them evenly and grinding and refining them to obtain a soap material, injecting the soap material into a mold, cutting it after forming and solidifying it, and packaging it to obtain a whitening soap.

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