CN110025509B - Depilatory wax and preparation method thereof - Google Patents

Abstract

The invention relates to a depilatory wax and a preparation method thereof, wherein the depilatory wax comprises the following components in percentage by mass: 15 to 40 percent of natural wax, 1 to 10 percent of microcrystalline wax, 2 to 8 percent of fatty alcohol, 1 to 5 percent of natural vegetable oil, 40 to 70 percent of tackifier, 5 to 10 percent of thickening agent, 0.1 to 1 percent of nucleating agent, 0.1 to 0.5 percent of stabilizing agent and 1 to 5 percent of sealing agent; the natural wax is one or more of wool wax, wood wax and rice bran wax, and the sealant is one or more of polyethylene wax, polypropylene wax and Fischer-Tropsch wax. The depilatory wax has lower drop melting point, good film forming performance and large hair clamping force, is not painful when being coated on the skin of a human body, and can effectively prevent the skin or hair follicles from being inflamed.

Description

Depilatory wax and preparation method thereof

Technical Field

The invention relates to the technical field of depilation, in particular to a depilation wax and a preparation method thereof.

Background

At present, the method for human body hair removal mainly comprises the following steps: chemical depilation, laser depilation, and physical depilation. The chemical depilation contains depilation active substances such as calcium thioglycolate, etc., can decompose or dissolve disulfide chains in hair cutin, and easily cause skin or hair follicle inflammation while softening hair for depilation. Laser hair removal is to cauterize the hair follicle by laser to destroy the hair follicle structure, so that the hair does not grow any more. Physical depilation, i.e. pulling out hair by external force, also includes mechanical depilation and wax depilation. The mechanical type is a hand-held electric depilator, and has the disadvantages of pain, incomplete depilating and easy head breakage. Wax-type depilation is mainly cold wax at present, the main component of the cold wax is a saccharide raw material, the cold wax is convenient to use, but the cost is higher, the depilation effect is not ideal, and more hair residues are left. At present, hot wax is reported in the market, but the main components are rosin resin, paraffin and the like, the dropping melting point is high, the skin is easily scalded, depilatory paper is required to assist depilation, wax remains after depilation, the skin is irritated and painful, and if the hot wax is not properly treated, the skin or hair follicle is easily inflamed.

Disclosure of Invention

In view of the above, there is a need for a depilatory wax having a low melt drop point and capable of preventing inflammation of the skin or hair follicle.

The depilatory wax comprises the following components in percentage by mass: 15 to 40 percent of natural wax, 1 to 10 percent of microcrystalline wax, 2 to 8 percent of fatty alcohol, 1 to 5 percent of natural vegetable oil, 40 to 70 percent of tackifier, 5 to 10 percent of thickening agent, 0.1 to 1 percent of nucleating agent, 0.1 to 0.5 percent of stabilizing agent and 1 to 5 percent of sealing agent; the natural wax is one or more of wool wax, wood wax and rice bran wax, and the sealant is one or more of polyethylene wax, polypropylene wax and Fischer-Tropsch wax.

The depilatory wax of the invention is prepared by compounding wool wax, wood wax and/or rice bran wax in natural wax with microcrystalline wax and other components, so that the prepared depilatory wax product has lower drop melting point and does not cause high-temperature pain when being coated on human skin. The added fatty alcohol and natural vegetable oil can be matched with natural wax, so that the skin can be infiltrated on the surface of the skin during depilation, the skin is moisturized and oily, and the skin or hair follicles can be prevented from being inflamed. Furthermore, polyethylene wax, polypropylene wax and/or Fischer-Tropsch wax are added as a sealant, so that a film can be rapidly formed on the surface of the depilatory wax to form a whole with the hair, depilatory is not needed by a depilatory paper, and natural vegetable oil and the like which are not solidified yet inside are prevented from seeping out of the surface, so that the natural vegetable oil and the like can be sufficiently contacted with the skin to effectively prevent the skin or the hair follicle from being inflamed.

In one embodiment, the composition comprises the following components in percentage by mass: 18 to 22 percent of natural wax, 1 to 3 percent of microcrystalline wax, 3 to 5 percent of fatty alcohol, 1 to 3 percent of natural vegetable oil, 60 to 70 percent of tackifier, 5 to 8 percent of thickening agent, 0.3 to 0.6 percent of nucleating agent, 0.2 to 0.4 percent of stabilizing agent and 1 to 3 percent of sealing agent.

In one embodiment, the natural waxes are wool wax and rice bran wax, and the blocking agents are polyethylene wax and Fischer-Tropsch wax.

In one embodiment, the mass ratio of the wool wax to the rice bran wax is (0.8-1.2): 1, and the mass ratio of the polyethylene wax to the Fischer-Tropsch wax is (0.7-1): 1.

In one embodiment, the nucleating agent is one or more of sodium stearate, calcium stearate, sodium benzoate, and sodium succinate.

In one embodiment, the fatty alcohol is one or more of dodecanol, tetradecanol, hexadecanol, and octadecanol.

In one embodiment, the natural vegetable oil is one or more of tea tree oil, horse-grass oil, and wheat germ oil.

In one embodiment, the microcrystalline wax is one or more of a No. 70 microcrystalline wax, a No. 75 microcrystalline wax, and a No. 80 microcrystalline wax.

In one embodiment, the tackifier is one or more of dammar resin, cycloaliphatic resin, and coumarone resin, and the thickener is one or more of hydrogenated castor oil, hydrogenated palm oil, and hydrogenated soybean oil.

The invention also provides a preparation method of the depilatory wax, which comprises the following steps:

mixing the natural wax, the microcrystalline wax, the fatty alcohol, the natural vegetable oil, and the tackifier at 110 ℃ to 130 ℃ to obtain a first mixture;

mixing the thickening agent, the nucleating agent, the sealing agent and the stabilizing agent at 170-200 ℃ to obtain a second mixture;

and mixing the first mixture and the second mixture at 120-140 ℃, and cooling to obtain the depilatory wax.

Detailed Description

In order that the invention may be more fully understood, a more particular description of the invention will now be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The depilatory wax provided by the embodiment of the invention comprises the following components in percentage by mass: 15 to 40 percent of natural wax, 1 to 10 percent of microcrystalline wax, 2 to 8 percent of fatty alcohol, 1 to 5 percent of natural vegetable oil, 40 to 70 percent of tackifier, 5 to 10 percent of thickening agent, 0.1 to 1 percent of nucleating agent, 0.1 to 0.5 percent of stabilizing agent and 1 to 5 percent of sealing agent; the natural wax is one or more of wool wax, wood wax and rice bran wax, and the sealant is one or more of polyethylene wax, polypropylene wax and Fischer-Tropsch wax.

The depilatory wax of the invention is prepared by compounding wool wax, wood wax and/or rice bran wax in natural wax with microcrystalline wax and other components, so that the prepared depilatory wax product has lower melting point and does not feel pain when being coated on human skin at high temperature. The added fatty alcohol and natural vegetable oil can be matched with natural wax, so that the skin can be infiltrated on the surface of the skin during depilation, the skin is moisturized and oily, and the skin or hair follicles can be prevented from being inflamed. Furthermore, polyethylene wax, polypropylene wax and/or Fischer-Tropsch wax are added as a sealant, so that a film can be rapidly formed on the surface of the depilatory wax to form a whole with the hair, depilatory is not needed by a depilatory paper, and natural vegetable oil and the like which are not solidified yet inside are prevented from seeping out of the surface, so that the natural vegetable oil and the like can be sufficiently contacted with the skin to effectively prevent the skin or the hair follicle from being inflamed.

In one particular example, the epilatory wax comprises the following components in mass percent: 18 to 22 percent of natural wax, 1 to 3 percent of microcrystalline wax, 3 to 5 percent of fatty alcohol, 1 to 3 percent of natural vegetable oil, 60 to 70 percent of tackifier, 5 to 8 percent of thickening agent, 0.3 to 0.6 percent of nucleating agent, 0.2 to 0.4 percent of stabilizing agent and 1 to 3 percent of sealing agent.

In one specific example, the natural waxes are wool wax and rice bran wax, and the blocking agents are polyethylene wax and fischer-tropsch wax. Preferably, the mass ratio of the wool wax to the rice bran wax is (0.8-1.2): 1, and the mass ratio of the polyethylene wax to the Fischer-Tropsch wax is (0.7-1): 1.

In one particular example, the nucleating agent is one or more of sodium stearate, calcium stearate, sodium benzoate, and sodium succinate. The crystal grains of the common wax have obvious boundaries, the formed crystal structure is loose, the crystal nucleus density is greatly increased due to the addition of nucleating agents such as stearate, benzoate, succinate and the like, the crystal grain size is refined, no obvious boundaries exist among the crystal grains, the crystallization speed can be increased, and the epilation wax can be crystallized to be fine and compact in the cooling process, so that the flexibility of the epilation wax and the clamping force on the hair are enhanced.

In one particular example, the fatty alcohol is one or more of dodecanol, tetradecanol, hexadecanol, and octadecanol. In a particular example, the natural vegetable oil is one or more of tea tree oil, horse-grass oil, and wheat germ oil. The fatty alcohol and natural vegetable oil can be used in depilation wax to prevent skin follicle inflammation.

In one particular example, the microcrystalline wax is one or more of a No. 70 microcrystalline wax, a No. 75 microcrystalline wax, and a No. 80 microcrystalline wax.

In one particular example, the tackifier is one or more of dammar resin, alicyclic resin and coumarone resin, and the thickener is one or more of hydrogenated castor oil, hydrogenated palm oil and hydrogenated soybean oil, more suitable for a depilatory wax product in contact with skin.

In one specific example, the stabilizer is one or more of 2, 6-di-tert-butyl-p-cresol, dimethyl polysiloxane, didodecyl alcohol ester, ditetradecyl alcohol ester and dioctadecyl alcohol ester.

The preparation method of the depilatory wax of the embodiment of the invention comprises the following steps of S1-S3:

s1, mixing the natural wax, the microcrystalline wax, the fatty alcohol, the natural vegetable oil and the tackifier at 110-130 ℃ to obtain a first mixture.

S2, mixing the thickening agent, the nucleating agent, the sealing agent and the stabilizing agent at 170-200 ℃ to obtain a second mixture.

S3, mixing the first mixture and the second mixture at 120-140 ℃, and cooling to obtain the depilatory wax.

The following are specific examples, and the materials involved are all commercially available.

Example 1

Adding wood wax (mass percent 38.6%), No. 75 microcrystalline wax (mass percent 2.3%), dodecanol (mass percent 4.1%), wheat germ oil (mass percent 2.5%) and dammar resin (mass percent 42.9%) into a reaction kettle A according to mass percent, adjusting the temperature to 120 ℃, and uniformly stirring at the speed of 100r/min for later use.

Adding hydrogenated palm oil (6.8 percent by mass), sodium succinate (0.9 percent by mass), polypropylene wax (1.4 percent by mass) and dimethyl polysiloxane (0.5 percent by mass) into a reaction kettle B in sequence according to the mass percent, controlling the temperature at 180 ℃, and uniformly stirring at the speed of 100r/min for later use.

Pumping the materials in the reaction kettle B into the reaction kettle A, controlling the temperature at 130 ℃, uniformly stirring at the speed of 100r/min, cooling and forming to obtain a depilatory wax finished product, measuring the dropping melting point to be 42.8 ℃, carrying out a skin irritation test on the calf villus part of the white rabbit, and after depilation, wetting the skin surface of the rabbit, wherein no erythema appears and the clean hair rate is 95%.

Example 2

Adding 21.7 mass percent of wool wax, 9.5 mass percent of No. 70 microcrystalline wax, 3.4 mass percent of tetradecanol, 1.6 mass percent of tea tree oil and 52.4 mass percent of alicyclic resin into a reaction kettle A, adjusting the temperature to 120 ℃, and uniformly stirring at the speed of 200r/min for later use.

Adding hydrogenated castor oil (5.9 percent by mass), sodium benzoate (0.6 percent by mass), polyethylene wax (4.8 percent by mass) and 2, 6-di-tert-butyl-p-cresol (0.1 percent by mass) into a reaction kettle B in sequence according to the mass percent, controlling the temperature at 180 ℃, and uniformly stirring at the speed of 200r/min for later use.

Pumping the materials in the reaction kettle B into the reaction kettle A, controlling the temperature at 130 ℃, uniformly stirring at the speed of 200r/min, cooling and forming to obtain a depilatory wax finished product, measuring the drop melting point to be 41.9 ℃, carrying out a skin irritation test on the calf villus part of the white rabbit, and after depilation, wetting the skin surface of the rabbit, wherein no erythema appears and the clean hair rate is 95%.

Example 3

Adding rice bran wax (mass percent 27.2%), microcrystalline wax No. 70 (mass percent 2.6%), microcrystalline wax No. 80 (mass percent 3.2%), cetyl alcohol (mass percent 7.7%), tea tree oil (mass percent 1.8%), malura oil (mass percent 2.9%), dammar resin (mass percent 20.8%) and coumarone resin (mass percent 19.2%) into a reaction kettle A according to mass percent, adjusting the temperature to 120 ℃, and uniformly stirring at the speed of 150r/min for later use.

Hydrogenated soybean oil (9.6 percent by mass), sodium stearate (0.1 percent by mass), Fischer-Tropsch wax (4.7 percent by mass) and dioctadecyl alcohol ester (0.2 percent by mass) are sequentially added into a reaction kettle B according to the mass percent, the temperature is controlled at 180 ℃, and the mixture is uniformly stirred at the speed of 150r/min for standby application.

Pumping the materials in the reaction kettle B into the reaction kettle A, controlling the temperature at 130 ℃, uniformly stirring at the speed of 150r/min, cooling and forming to obtain a depilatory wax finished product, measuring the dropping melting point to be 43.8 ℃, carrying out a skin irritation test on the calf villus part of the white rabbit, and after depilation, wetting the skin surface of the rabbit, wherein no erythema appears and the clean hair rate is 95%.

Example 4

Adding wool wax (10 mass percent), rice bran wax (10.8 mass percent), No. 75 microcrystalline wax (1.8 mass percent), dodecanol (1.5 mass percent), octadecanol (1.6 mass percent), maltula oil (1.1 mass percent) and alicyclic resin (65.1 mass percent) into a reaction kettle A according to mass percent, adjusting the temperature to 120 ℃, and uniformly stirring at the speed of 100r/min for later use.

Adding hydrogenated castor oil (2.5 percent by mass), hydrogenated palm oil (2.6 percent by mass), calcium stearate (0.4 percent by mass), polyethylene wax (1.0 percent by mass), Fischer-Tropsch wax (1.3 percent by mass) and docosanol ester (0.3 percent by mass) into a reaction kettle B in sequence according to the mass percent, controlling the temperature to be 180 ℃, and uniformly stirring at the speed of 200r/min for later use.

Pumping the materials in the reaction kettle B into the reaction kettle A, controlling the temperature at 130 ℃, uniformly stirring at the speed of 200r/min, cooling and forming to obtain a depilatory wax finished product, measuring the drop melting point to be 40.7 ℃, carrying out a skin irritation test on the calf villus part of the white rabbit, and after depilation, wetting the skin surface of the rabbit, wherein no erythema occurs and the hair cleaning rate is 98%.

Comparative example 1

Comparative example 1 is essentially the same as example 1 except that the wood wax is replaced with paraffin wax, and the resulting finished epilatory wax has a measured drop melting point of 54.6 ℃.

Comparative example 2

Comparative example 1 is substantially the same as example 1 except that fatty alcohol and natural vegetable oil are not added, the obtained depilatory wax finished product has poor effect of preventing skin follicle inflammation, and skin irritation test is carried out on the down leg hair part of white rabbit, after depilation, the rabbit skin surface is dry and slight erythema appears.

Comparative example 3

Comparative example 1 is substantially the same as example 1 except that, without adding a blocking agent, the natural vegetable oil in the resulting finished depilatory wax is liable to exude during depilation.

Comparative example 4

This comparative example 1 is essentially the same as example 1, except that the proportions of the components are different: the obtained depilatory wax finished product has the dropping melting point of 57.4 ℃ when measured by using the obtained depilatory wax finished product, and the depilatory effect test is carried out on the calf villus part of the white rabbit, wherein the depilatory effect test is carried out, and the depilatory effect is incomplete, and the depilatory rate is 60%.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The depilatory wax is characterized by comprising the following components in percentage by mass: 15 to 40 percent of natural wax, 1 to 10 percent of microcrystalline wax, 2 to 8 percent of fatty alcohol, 1 to 5 percent of natural vegetable oil, 40 to 70 percent of tackifier, 5 to 10 percent of thickening agent, 0.1 to 1 percent of nucleating agent, 0.1 to 0.5 percent of stabilizing agent and 1 to 5 percent of sealing agent; wherein the natural wax is one or more of wool wax, wood wax and rice bran wax, and the sealant is one or more of polyethylene wax, polypropylene wax and Fischer-Tropsch wax; the nucleating agent is one or more of sodium stearate, calcium stearate, sodium benzoate and sodium succinate; the fatty alcohol is one or more of dodecanol, tetradecanol, hexadecanol and octadecanol; the natural vegetable oil is one or more of tea tree oil, horse-grass oil and wheat germ oil; the tackifier is one or more of dammar resin, alicyclic resin and coumarone resin, and the thickener is one or more of hydrogenated castor oil, hydrogenated palm oil and hydrogenated soybean oil.

2. The epilatory wax of claim 1, comprising the following components in mass percent: 18 to 22 percent of natural wax, 1 to 3 percent of microcrystalline wax, 3 to 5 percent of fatty alcohol, 1 to 3 percent of natural vegetable oil, 60 to 70 percent of tackifier, 5 to 8 percent of thickening agent, 0.3 to 0.6 percent of nucleating agent, 0.2 to 0.4 percent of stabilizing agent and 1 to 3 percent of sealing agent.

3. The epilatory wax of claim 1, wherein the natural waxes are wool wax and rice wax, and the blocking agents are polyethylene wax and Fischer-Tropsch wax.

4. The epilatory wax of claim 3, wherein the mass ratio of the wool wax to the rice bran wax is (0.8-1.2): 1, and the mass ratio of the polyethylene wax to the Fischer-Tropsch wax is (0.7-1): 1.

5. The epilatory wax of any one of claims 1 to 4, wherein the microcrystalline wax is one or more of a No. 70 microcrystalline wax, a No. 75 microcrystalline wax, and a No. 80 microcrystalline wax.

6. The epilatory wax of any one of claims 1 to 4, comprising the following components in mass percent: 38.6% of wood wax, 2.3% of No. 75 microcrystalline wax, 4.1% of dodecanol, 2.5% of wheat germ oil, 42.9% of dammar resin, 6.8% of hydrogenated palm oil, 0.9% of sodium succinate, 1.4% of polypropylene wax and 0.5% of dimethyl polysiloxane.

7. The epilatory wax of any one of claims 1 to 4, comprising the following components in mass percent: 21.7% of wool wax, 9.5% of No. 70 microcrystalline wax, 3.4% of tetradecanol, 1.6% of tea tree oil, 52.4% of alicyclic resin, 5.9% of hydrogenated castor oil, 0.6% of sodium benzoate, 4.8% of polyethylene wax and 0.1% of 2, 6-di-tert-butyl-p-cresol.

8. The epilatory wax of any one of claims 1 to 4, comprising the following components in mass percent: 27.2% of rice bran wax, 2.6% of No. 70 microcrystalline wax, 3.2% of No. 80 microcrystalline wax, 7.7% of cetyl alcohol, 1.8% of tea tree oil, 2.9% of Malura oil, 20.8% of dammar resin, 19.2% of coumarone resin, 9.6% of hydrogenated soybean oil, 0.1% of sodium stearate, 4.7% of Fischer-Tropsch wax and 0.2% of dioctadecyl alcohol ester.

9. The epilatory wax of any one of claims 1 to 4, comprising the following components in mass percent: 10% of wool wax, 10.8% of rice bran wax, 1.8% of No. 75 microcrystalline wax, 1.5% of dodecanol, 1.6% of octadecanol, 1.1% of maltula oil, 65.1% of alicyclic resin, 2.5% of hydrogenated castor oil, 2.6% of hydrogenated palm oil, 0.4% of calcium stearate, 1.0% of polyethylene wax, 1.3% of Fischer-Tropsch wax and 0.3% of behenyl alcohol ester.

10. A method for preparing a depilatory wax as claimed in any of claims 1 to 9, characterised by the steps of:

mixing the natural wax, the microcrystalline wax, the fatty alcohol, the natural vegetable oil, and the tackifier at 110 ℃ to 130 ℃ to obtain a first mixture;

mixing the thickening agent, the nucleating agent, the sealing agent and the stabilizing agent at 170-200 ℃ to obtain a second mixture;

and mixing the first mixture and the second mixture at 120-140 ℃, and cooling to obtain the depilatory wax.