Composition for improving hair toughness and preparation method and application thereof

Abstract

The invention provides a composition for improving hair toughness and a preparation method and application thereof. The composition for improving hair toughness comprises 1-60 parts of prinsepia utilis royle oil; 0.01 to 20 parts of hydrolyzed keratin; 0.01 to 10 parts of serine; 20-90 parts of a solvent; wherein the solvent comprises any one or a combination of more of glycerol, butanediol, propylene glycol and deionized water. The preparation method of the composition for improving hair toughness comprises the following steps: stirring and uniformly mixing hydrolyzed keratin and a first solvent to obtain a first semi-finished product; stirring serine and a second solvent until the serine and the second solvent are uniformly mixed to obtain a second semi-finished product; stirring the first semi-finished product and the second semi-finished product until the materials are uniformly mixed to obtain a third semi-finished product; adding prinsepia utilis royle oil into the third semi-finished product, and performing high-pressure homogenization and uniform mixing to obtain a finished product. According to the invention, the scalp barrier can be enhanced, and the hair toughness is truly improved in physiological significance.

Description

Technical Field

[0001] The invention relates to the technical field of hair care, in particular to a composition for improving hair toughness, a preparation method and application thereof. Background Art

[0002] Our hair is damaged by a variety of external factors, including sun exposure, heat treatment, chemical treatment and physical damage. As the degree of damage increases, the hair will experience a loss of water and lipids, the shedding of the cuticle, and a decrease in the thickness of the scale layer. These changes cause the inner cortex of the hair to be exposed and further damaged, resulting in the loss of hair keratin. As a result, the hair strands are damaged and their strength is significantly reduced.

[0003] At present, most of the care methods used to enhance hair strength remain at the physical protection level. For example, cationic polymers are added to hair products to make them adsorb on the surface of damaged hair, making the hair soft and shiny. However, this effect of increasing hair strength is limited to the surface of the hair and does not really strengthen the hair in a physiological sense. In addition, such adsorbent materials may continue to deposit after repeated use, which may cause scalp pores to clog and cause hair loss and other problems.

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a composition capable of improving the toughness of hair, and a preparation method and application thereof. Summary of the invention

[0005] In view of the above situation, the present invention provides a composition for improving hair strength and a preparation method and application thereof to solve the technical problems raised by the background technology.

[0006] The technical solution of the present invention is:

[0007] A composition for improving hair strength, comprising the following raw materials in parts by weight:

[0008] 1-60 parts of prickle oil;

[0009] Hydrolyzed keratin 0.01-20 parts;

[0010] Serine 0.01-10 parts;

[0011] 20-90 parts of solvent;

[0012] Wherein, the solvent includes any one or more combinations of glycerol, butylene glycol, propylene glycol and deionized water.

[0013] The composition for improving hair strength according to the present invention has the following beneficial effects:

[0014] The composition for improving hair toughness comprises 1-60 parts of prickle fruit oil, 0.01-20 parts of hydrolyzed keratin, 0.01-10 parts of serine, and 20-90 parts of solvent, so that the composition can work in combination from multiple pathways, from the inside to the outside, repair damaged hair scales, fill the cavities in the cross section of damaged hair, repair the chemical bonds inside the hair that are broken due to damage, strengthen the epidermis, cortex, and medulla of the hair, and enhance the scalp barrier, thereby truly improving the hair toughness in a physiological sense.

[0015] In addition, the composition for improving hair toughness provided by the present invention may also have the following additional technical features:

[0016] Preferably, the content of the utilx utilx oil is 20-50 parts, the content of the hydrolyzed keratin is 5-15 parts, the content of the serine is 1-5 parts, and the content of the solvent is 20-75 parts.

[0017] Preferably, the ratio of the serine: the hydrolyzed keratin: the prickle fruit oil is in the range of (1-5): (2-8): 20.

[0018] A method for preparing a composition for improving hair strength comprises the following steps:

[0019] Stirring the hydrolyzed keratin and the first solvent until they are evenly mixed to obtain a first semi-finished product;

[0020] Stirring the serine and the second solvent until they are uniformly mixed to obtain a second semi-finished product;

[0021] The first semi-finished product and the second semi-finished product are stirred until they are uniformly mixed to obtain a third semi-finished product;

[0022] The prickle oil is added into the third semi-finished product, and mixed evenly by high pressure homogenization to obtain a finished product.

[0023] In addition, the method for preparing the composition for improving hair toughness provided by the present invention may also have the following additional technical features:

[0024] Preferably, the first solvent is any one or more combinations of glycerol, butanediol, and deionized water, and the second solvent is any one or more combinations of butanediol and deionized water.

[0025] In addition, the present invention also provides the application of the composition for improving hair toughness, specifically, the composition for improving hair toughness is applied in cosmetics.

[0026] In addition, the use of the composition for improving hair toughness provided by the present invention may also have the following additional technical features:

[0027] Preferably, the composition is used in the cosmetic in an amount of 0.01 to 30% by weight.

[0028] Preferably, the cosmetics are leave-on cosmetics or wash-off cosmetics.

[0029] Preferably, the leave-on cosmetics include hair care products and scalp care products; and the rinse-off cosmetics include shampoo and conditioner. DETAILED DESCRIPTION

[0030] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to various embodiments, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] The embodiment of the present invention provides a composition for improving the toughness of hair, wherein the composition comprises the following raw materials in parts by weight:

[0033] 1-60 parts of prickle oil;

[0034] Hydrolyzed keratin 0.01-20 parts;

[0035] Serine 0.01-10 parts;

[0036] 20-90 parts of solvent;

[0037] Wherein, the solvent includes any one or more combinations of glycerol, butylene glycol, propylene glycol and deionized water.

[0038] Preferably, the content of the utilx utilx oil is 20-50 parts, the content of the hydrolyzed keratin is 5-15 parts, the content of the serine is 1-5 parts, and the content of the solvent is 20-75 parts.

[0039] The ratio of the serine: the hydrolyzed keratin: the prickle fruit oil is in the range of (1-5): (2-8): 20.

[0040] The embodiment of the present invention also provides a method for preparing a composition for improving hair toughness, comprising the following steps:

[0041] Stirring the hydrolyzed keratin and the first solvent until they are evenly mixed to obtain a first semi-finished product;

[0042] Stirring the serine and the second solvent until they are uniformly mixed to obtain a second semi-finished product;

[0043] The first semi-finished product and the second semi-finished product are stirred until they are uniformly mixed to obtain a third semi-finished product;

[0044] The prickle oil is added into the third semi-finished product, and mixed evenly by high pressure homogenization to obtain a finished product.

[0045] The following is a further description of the embodiments of the present invention in multiple embodiments. The embodiments of the present invention are not limited to the following specific embodiments. Within the scope of the unchanged main rights, appropriate changes can be made to the implementation.

[0046] Example 1

[0047] A composition for improving hair toughness comprises the following raw materials in parts by weight: 34 parts of prickle oil, 8 parts of hydrolyzed keratin, 2 parts of serine, and 56 parts of solvent. The solvent comprises butanediol and deionized water. The ratio of serine: hydrolyzed keratin: prickle oil in the composition is 1:4:17, and the rest is solvent.

[0048] The method for preparing the composition for improving hair toughness comprises the following steps:

[0049] (1) stirring the hydrolyzed keratin and the solvent until they are uniformly mixed to obtain product A (the first semi-finished product). The solvent is butanediol and deionized water;

[0050] (2) stirring serine and solvent until they are uniformly mixed to obtain product B (second semi-finished product). The solvent is deionized water;

[0051] (3) Stir product A and product B until they are evenly mixed to obtain product C (the third semi-finished product).

[0052] (4) Add the pricking fruit oil to product C, and mix them evenly by high pressure homogenization to obtain the finished product.

[0053] This embodiment also provides the use of the above-prepared composition for improving hair strength in cosmetics.

[0054] Example 2

[0055] This embodiment provides a composition for improving hair toughness, comprising the following raw materials in parts by weight:

[0056] 34 parts of prickle fruit oil, 10 parts of hydrolyzed keratin, 4 parts of serine, and 52 parts of solvent. The solvent includes butanediol and deionized water. The ratio of serine: hydrolyzed keratin: prickle fruit oil is 2:5:17, and the rest is solvent.

[0057] A method for preparing a composition for improving hair strength comprises the following steps:

[0058] (1) stirring the hydrolyzed keratin and the solvent until they are uniformly mixed to obtain product A. The solvent is butanediol and deionized water;

[0059] (2) stirring serine and solvent until they are uniformly mixed to obtain product B. The solvent is deionized water;

[0060] (3) Stir product A and product B until they are evenly mixed to obtain product C.

[0061] (4) Add the pricking fruit oil to product C, and mix them evenly by high pressure homogenization to obtain the finished product.

[0062] Comparative Example 1

[0063] This comparative example provides a composition for improving hair toughness, comprising the following raw materials in parts by weight:

[0064] 34 parts of prickle oil, 8 parts of hydrolyzed keratin, and 58 parts of solvent. The solvent includes butylene glycol and deionized water.

[0065] Comparative Example 2

[0066] This comparative example provides a composition for improving hair toughness, comprising the following raw materials in parts by weight:

[0067] 34 parts of prickle oil, 2 parts of serine, and 64 parts of solvent. The solvent includes butanediol and deionized water.

[0068] Comparative Example 3

[0069] This comparative example provides a composition for improving hair toughness, comprising the following raw materials in parts by weight:

[0070] 8 parts of hydrolyzed keratin, 2 parts of serine, and 90 parts of solvent. The solvent includes butanediol and deionized water.

[0071] Comparative Example 4

[0072] This comparative example provides a composition for improving hair toughness, comprising the following raw materials in parts by weight:

[0073] 20 parts of prickle oil, 6 parts of hydrolyzed keratin, 1 part of serine, and 70 parts of solvent. The solvent includes butanediol and deionized water.

[0074] Comparative Example 5

[0075] This comparative example provides a composition for improving hair toughness, comprising the following raw materials in parts by weight:

[0076] 40 parts of prickle oil, 1 part of hydrolyzed keratin, 6 parts of serine, and 53 parts of solvent. The solvent includes butanediol and deionized water.

[0077] The test sample components of the above embodiments and control examples are shown in Table 1 below:

[0078] Table 1 Test sample composition table

[0079]

[0080] At the same time, the finished products (samples) of the compositions for improving hair strength obtained in the above embodiments and control examples are applied to hair, and then the hair tensile force test is performed to objectively evaluate the ability of the samples to strengthen hair through instrumental testing.

[0081] The specific test method is as follows:

[0082] The test instrument is a hair multifunctional test system (MTT175, Diastron, UK), wherein the blank group is hair without any treatment.

[0083] With reference to "T / GDCDC 012-2020 Hair Product Strengthening Efficacy Evaluation Method", the in vitro method was selected for the test and this test was carried out. Install the test accessories for stretching a single hair, prepare a single hair sample, and the instrument stretches the hair at a constant speed until the hair breaks. The test system calculates the work required to break a single hair, and takes the total work to evaluate the strength of the hair. The greater the total work required to break a single hair, the stronger the hair. The specific test process is as follows:

[0084] 1) Select human hair bundles with similar degree of damage that meet the requirements (requirements: uniform thickness, no obvious difference in the surface to the naked eye, and the total weight of each hair bundle differs by ±0.01g), wash them uniformly and divide them into 8 equal parts. The blank group is the hair bundle without treatment.

[0085] 2) The test sample is evenly applied on the surface of the hair bundle at a rate of 0.2 grams per gram of hair; and placed in a constant temperature and humidity environment for 12 hours (temperature 23±2°C, humidity 50%±10%);

[0086] 3) After extracting the processed human hair bundles and measuring the diameter of each hair strand, the single hair strands are pressed and subjected to tensile testing. Each group needs to undergo 30 effective single-strand tensile tests;

[0087] 4) Test and record the results and make statistical analysis. When calculating, the total work of stretching a single hair of each sample at the measurement time is the average of the total work of stretching a single hair of the hair bundle.

[0088] 5) The strengthening effect of the sample on the hair was evaluated by comparing the changes in the tensile work and hair elongation of a single hair in the sample group and the blank group. The greater the increase in tensile strength and the longer the hair elongation, the better the hair strengthening effect, as shown in Table 2 below:

[0089] Table 2 Tensile force (gf) and hair elongation (%) of the tested samples after use

[0090] sample Breaking force gf Hair elongation % Blank Group 114.04 49.156 Example 1 134.14 56.308 Example 2 141.34 59.613 Comparative Example 1 128.98 50.188 Comparative Example 2 126.52 49.972 Comparative Example 3 126.31 49.753 Comparative Example 4 119.37 49.653 Comparative Example 5 121.63 50.712

[0091] As shown in Table 2, according to the experimental data of Examples 1-2 and Comparative Examples 1-5 of the present invention, the breaking force and hair elongation of Examples 1 and 2 of the present invention are significantly enhanced after use, indicating that the composition of the present invention has the effect of enhancing the toughness of hair. The breaking force and hair elongation of the comparative example samples did not change significantly after use, and there was no toughening effect.

[0092] Example 3

[0093] The composition for improving hair toughness in Example 1 or Example 2 is used to prepare cosmetics. The cosmetics prepared by the composition can be leave-on and cleansing cosmetics, and the weight percentage of the composition in the cosmetics is 0.01-30%. The leave-on cosmetics include hair care products and scalp care products. The wash-off cosmetics include shampoo, conditioner, shower gel, facial cleansing products, etc.

[0094] In summary, according to the composition for improving hair toughness provided by the present invention, and its preparation method and application, the composition for improving hair toughness comprises 1-60 parts of prickle oil; 0.01-20 parts of hydrolyzed keratin; 0.01-10 parts of serine; and 20-90 parts of solvent, so that the composition can work in combination from multiple pathways, from the inside to the outside, repair damaged hair scales, fill the voids in the cross section of damaged hair, repair the chemical bonds inside the hair that are broken due to damage, strengthen the epidermis, cortex, and medulla of the hair, and can also enhance the scalp barrier, thereby truly improving the hair toughness in a physiological sense.

[0095] 1. The composition can work in multiple ways, from the inside to the outside, repairing damaged hair scales, filling the holes in the cross section of damaged hair, repairing the chemical bonds inside the hair that are broken due to damage, strengthening the epidermis, cortex and medulla of the hair, locking the water and oil in the hair, repairing damaged hair, improving the elasticity and toughness of the hair, and strengthening the scalp barrier, truly improving the strength of the hair in a physiological sense.

[0096] 2. The composition can repair damaged hair scales and strengthen the hair cuticle. The hydrolyzed keratin in the composition has a high affinity for hair. After hydrolysis, the protein is positively charged, and the hair surface is negatively charged. The positive and negative charges attract each other, so the hydrolyzed protein can adhere to the hair surface and form a dense and smooth protective film on the damaged surface of the hair in the form of macromolecules, repairing the cuticle, improving the gloss and elasticity of the hair, and strengthening the hair. The composition can also replenish the lost amino acids for the hair, making the cuticle and the cortex more closely connected, making the hair scales less likely to fall off, strengthening the first barrier to protect the hair, and thereby reducing the chance of damage and exposure of the internal cortex, and improving the toughness of the hair.

[0097] 3. The composition can repair and strengthen the chemical bonds inside the hair that are broken due to damage to the cortex layer, and strengthen the hair shaft. The composition is a water-oil combined micron-sized emulsified particle with good permeability, which can pass through the hair scale layer and enter the hair fiber. It can deeply repair the hair in the cortex layer, replenish hair moisture, prevent hair from being frizzy, and improve the strength and flexibility of the hair. Hydrolyzed keratin and silk amino provide new α-keratin to the cortex layer, and the damaged and missing parts are repaired. The adsorption capacity of the polar keratin in the hair fiber is stronger, and the hydrophobic effect of the lipoprotein layer is strengthened to protect the hair cuticle from swelling and falling off, thereby maintaining the integrity of the hair shaft.

[0098] 4. Internal filling, strong hair core: Use components with similar structures to physically fill the voids inside damaged hair. The composition is a water-oil combined micron-sized emulsified particle with good permeability and can penetrate deep into the hair core. The prickle oil is rich in vitamins and unsaturated fatty acids, of which the content of oleic acid and linoleic acid is as high as 70% or more, close to the lipid structure of human skin. At the same time, keratin and amino acids react with the fiber molecular chains in the hair to form a cross-linking reaction. The combination of the three can fill the hollow cross-section of damaged hair and strengthen the hair core. This kind of repair is a "quasi-permanent" bionic repair, which meets people's expectations for a green and healthy life.

[0099] 5. Repair scalp barrier: Primarina purpurogena oil has a similar structure to the moisturizing factor in the stratum corneum, and can form a network structure with the free water in the stratum corneum to lock in moisture. It can accelerate the lipid synthase between epidermal cells and accelerate the repair of the epidermal permeability barrier. The composition can strengthen the brick wall structure of the skin, thereby achieving the effect of soothing the skin barrier. At the same time, it can play a physiological role in scavenging free radicals, strengthen the scalp, thereby promoting the improvement of hair toughness and improving hair loss.

[0100] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A composition for improving hair strength, characterized in that: The composition comprises the following raw materials in parts by weight: 1-60 parts of prickle oil; Hydrolyzed keratin 0.01-20 parts; Serine 0.01-10 parts; 20-90 parts of solvent; Wherein, the solvent includes any one or more combinations of glycerol, butylene glycol, propylene glycol and deionized water.

2. The composition for improving hair strength according to claim 1, characterized in that: The content of the prickle fruit oil is 20-50 parts, the content of the hydrolyzed keratin is 5-15 parts, the content of the serine is 1-5 parts, and the content of the solvent is 20-75 parts.

3. The composition for improving hair strength according to claim 1 or 2, characterized in that: The ratio of the serine: the hydrolyzed keratin: the prickle fruit oil is in the range of (1-5): (2-8):

20.

4. The method for preparing the composition for improving hair strength according to any one of claims 1 to 3, characterized in that: The following steps are involved: Stirring the hydrolyzed keratin and the first solvent until they are evenly mixed to obtain a first semi-finished product; Stirring the serine and the second solvent until they are uniformly mixed to obtain a second semi-finished product; The first semi-finished product and the second semi-finished product are stirred until they are uniformly mixed to obtain a third semi-finished product; The prickle oil is added into the third semi-finished product, and mixed evenly by high pressure homogenization to obtain a finished product.

5. The method for preparing the composition for improving hair strength according to claim 4, characterized in that: The first solvent is any one or more combinations of glycerol, butanediol, and deionized water, and the second solvent is any one or more combinations of butanediol and deionized water.

6. The use of the composition for improving hair strength according to claim 1, characterized in that: The hair strength enhancing composition is used in cosmetics.

7. The use of the composition for improving hair strength according to claim 6, characterized in that: The weight percentage of the composition in the cosmetic is 0.01-30%.

8. The use of the composition for improving hair strength according to claim 6, characterized in that: The cosmetics are leave-on cosmetics or wash-off cosmetics.

9. The use of the composition for improving hair strength according to claim 8, characterized in that: The leave-on cosmetics include hair care products and scalp care products; the rinse-off cosmetics include shampoo and conditioner.

Images