Light-color lignin composition and application thereof

Abstract

The invention relates to a light-color lignin composition and application thereof, and belongs to the technical field of cosmetics. The composition is prepared from the following raw materials in parts by weight: light-colored lignin, vanilla extract, althaea rosea extract, basil extract, Rotosa tea extract, gamma-polyglutamic acid, dimeticone and a solvent. The dimeticone, the vanilla extract and the light-color lignin form a film layer, so that a product added with the composition prepared by the invention has richer, layered and lasting fragrance; the althaea rosea extract, the basil extract and the light-colored lignin have a synergistic effect to prevent external ultraviolet rays and remove internal free radicals, and the defense capability of the skin to the ultraviolet rays is improved by combining inside and outside through a multi-layer protection mechanism; the gamma-polyglutamic acid and the Rotosa tea extract are used together to achieve the effects of supplementing and retaining water.

Description

Technical Field

[0001] This invention belongs to the field of cosmetic technology, specifically relating to a composition of light-colored lignin and its application. Background Technology

[0002] With changing modern lifestyles, the demand for skin protection and beautification is increasing, leading to widespread attention to cosmetics with moisturizing and UV protection functions. Moisturizing is a crucial topic in cosmetic technology. Dry skin is caused by external environmental factors such as climate conditions, air conditioning, and heating, as well as internal factors such as diet and lifestyle. Moisturizing cosmetics can hydrate and lock in moisture, preventing water loss. Ultraviolet (UV) radiation is one of the main factors causing serious skin damage; sun exposure can lead to skin aging, pigmentation, and skin cancer. To protect the skin from UV damage, two common types of UV protection products exist on the market: physical and chemical. Currently, commercially available cosmetics primarily utilize chemical UV protection to reduce UV damage to the skin. Nowadays, more and more manufacturers are researching products that can simultaneously moisturize and protect against UV rays, resulting in a proliferation of products. However, in reality, the moisturizing and UV protection performance of existing products is still lacking, and products that truly meet consumers' demands for high-quality skincare are even rarer.

[0003] Therefore, it is particularly necessary to develop a composition with moisturizing and UV protection properties to provide consumers with comprehensive skin care, meet their demand for high-quality skin care, and promote innovation in the entire cosmetics industry. Summary of the Invention

[0004] The purpose of this invention is to provide a composition of light-colored lignin and its application. This invention incorporates vanilla extract, light-colored lignin, and dimethicone, forming a transparent, colorless, and protective film with the dimethicone, vanilla extract, and light-colored lignin. This results in a product containing the composition of this invention having a richer, more layered, and longer-lasting aroma. Furthermore, this invention incorporates marshmallow extract, basil extract, and light-colored lignin, which work synergistically to protect against external ultraviolet radiation and eliminate internal free radicals, thus enhancing the skin's defense against ultraviolet radiation through a multi-layered protective mechanism. In addition, the γ-polyglutamic acid and rooibos tea extract of this invention also have a moisturizing effect, solving the problems of insufficient aroma and poor anti-ultraviolet effect in existing compositions containing light-colored lignin.

[0005] The objective of this invention can be achieved through the following technical solutions: A composition of light-colored lignin, said composition comprising the following raw materials in parts by weight: 10-15 parts by weight of light-colored lignin Vanilla extract 5-8 parts by weight 13-16 parts by weight of marshmallow extract Basil extract 4-8 parts by weight 6-10 parts by weight of rooibos tea extract 5-10 parts by weight of γ-polyglutamic acid Solvent 40-50 parts by weight.

[0006] As a preferred embodiment of the present invention, the solvent includes any one of deionized water, octyldodecyl alcohol, propylene glycol, and butanediol.

[0007] As a preferred embodiment of the present invention, the composition further includes dimethicone oil.

[0008] As a preferred embodiment of the present invention, the dimethicone oil comprises 4.5-8 parts by weight.

[0009] As a preferred embodiment of the present invention, the preparation method of the composition is as follows: S1. Take half the weight of the solvent and add light-colored lignin, vanilla extract and dimethicone oil to it. Stir under controlled temperature and let stand to obtain mixture A for later use. S2. Add marshmallow extract, basil extract, rooibos tea extract and γ-polyglutamic acid to the remaining solvent in sequence, stir while controlling the temperature, and let stand after stirring to obtain mixture B for later use. S3. Mix mixture A and mixture B at a controlled temperature until homogeneous to obtain the final product of the composition.

[0010] As a preferred embodiment of the present invention, the temperature of the temperature-controlled stirring in step S1 is 23-25℃, and the time is 1.5-2h; the standing time is 0.5-1h.

[0011] As a preferred embodiment of the present invention, the temperature of the temperature-controlled stirring in step S2 is 23-25°C, the time is 0.5-1h, and the standing time is 10-20min.

[0012] As a preferred technical solution of the present invention, the temperature for temperature control and uniform mixing in step S3 is 25-28℃.

[0013] As a preferred embodiment of the present invention, the composition is used as an addition to cosmetics or skin care products.

[0014] Furthermore, the composition accounts for 5-12% of the total mass of the cosmetics or skincare products; the cosmetics include, but are not limited to, foundation, concealer, and blush; the skincare products include, but are not limited to, face cream, eye cream, primer, sunscreen, and lotion.

[0015] The beneficial effects of this invention are: (1) The present invention incorporates vanilla extract and dimethicone, and forms a film layer with dimethicone, vanilla extract and light-colored lignin, so that the product containing the composition prepared by the present invention has a richer, more layered and longer-lasting aroma. Furthermore, dimethicone can form a transparent, colorless, and protective film with vanilla extract and light-colored lignin, creating a physical barrier to slow down evaporation. This barrier reduces their direct contact with the external environment, thus slowing down evaporation and allowing for a longer-lasting release, extending their residence time on the skin. In addition, vanillin, vanillic acid, vanillyl alcohol, and p-hydroxybenzyl alcohol contained in vanilla extract can interact with light-colored lignin molecules, inducing them to release more fragrance, thereby enhancing their aroma and enriching its layers. During the research and development process, the inventors also discovered that combining vanilla extract with light-colored lignin can effectively regulate neurotransmitters, increase GABA activity, and inhibit the excitability of the central nervous system, thereby producing a calming and soothing effect and helping to reduce muscle tension caused by stress.

[0016] (2) This invention incorporates marshmallow extract, basil extract, and light-colored lignin. The synergistic effect of these three ingredients gives the product prepared with this invention excellent anti-UV properties. This is because the unique high degree of aromatic cyclization and rich variety of functional groups of light-colored lignin, combined with intramolecular hydrogen bonding and conjugation, enable it to reflect UV rays back into the environment, reducing the amount of UV rays directly contacting the skin. Furthermore, this invention also incorporates marshmallow extract, rich in flavonoids, which effectively inhibits free radicals through three stages: preventing free radical initiation, generation, and inhibiting lipid peroxidation in the body. On this basis, along with basil extract, which has good light-shielding properties, the active ingredients in basil extract, such as antioxidant enzymes, neutralize free radicals that are not completely inhibited by marshmallow extract, thereby assisting marshmallow extract in reducing UV damage to the skin. In other words, marshmallow extract, basil extract, and light-colored lignin work synergistically to improve the skin's defense against UV rays by combining internal and external protection mechanisms, from preventing external UV rays to clearing internal free radicals.

[0017] (3) This invention incorporates rooibos tea extract and γ-polyglutamic acid, giving the product prepared with the composition of this invention excellent moisturizing effects. This is because γ-polyglutamic acid promotes the proliferation of natural moisturizing factors in the keratinocytes of the skin, allowing it to penetrate and macerate the stratum corneum, making the skin more transparent and moisturized. On this basis, rooibos tea extract promotes the production of aquaporins, which not only assists γ-polyglutamic acid in moisturizing but also effectively promotes moisture retention. At the same time, rooibos tea extract can also effectively inhibit the activity of caspase, thereby enhancing cell activity and revitalizing the skin, thus achieving the effect of moisturizing and retaining moisture. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] The vanilla extract used in this application was purchased from Lanzhou Waterles Biotechnology Co., Ltd., with a ratio of 10:1; the marshmallow extract was purchased from Shaanxi Hana Biotechnology Co., Ltd., with a ratio of 10:1; the basil extract was purchased from Shanyang Lianfeng Biotechnology Co., Ltd., with a ratio of 10:1; and the rooibos extract was purchased from Lanzhou Waterles Biotechnology Co., Ltd., with a ratio of 10:1.

[0020] Example 1 A composition of light-colored lignin, said composition comprising the following raw materials in parts by weight: 10 parts by weight of light-colored lignin Vanilla extract 6 parts by weight 13 parts by weight of marshmallow extract Basil extract 8 parts by weight Rooibos tea extract 6 parts by weight 7 parts by weight of γ-polyglutamic acid 40 parts by weight of deionized water.

[0021] The composition is prepared by: S1. Take half the weight of deionized water and add light-colored lignin and vanilla extract to it. Stir at 23°C for 2 hours. After stirring, let stand for 0.5 hours to obtain mixture A for later use. S2. Add marshmallow extract, basil extract, rooibos tea extract and γ-polyglutamic acid to the remaining deionized water in sequence. Stir at 25°C for 1 hour. After stirring, let stand for 15 minutes to obtain mixture B for later use. S3. Mix mixture A and mixture B at a controlled temperature of 25°C until homogeneous to obtain the finished product composition.

[0022] Example 2 A composition of light-colored lignin, said composition comprising the following raw materials in parts by weight: 15 parts by weight of light-colored lignin Vanilla extract 5 parts by weight 15 parts by weight of marshmallow extract Basil extract 6 parts by weight 8 parts by weight of rooibos tea extract 10 parts by weight of γ-polyglutamic acid 50 parts by weight of octyldodecaneol.

[0023] The composition is prepared by: S1. Take half the weight of octyldodecanool, add light-colored lignin and vanilla extract to it, stir at 24℃ for 1.5h, and let stand for 0.5h after stirring to obtain mixture A, which is ready for use. S2. Add marshmallow extract, basil extract, rooibos extract and γ-polyglutamic acid to the remaining octyldodecanool in sequence, stir at 24℃ for 0.5h, and let stand for 10min after stirring to obtain mixture B for later use. S3. Mix mixture A and mixture B at a controlled temperature of 27°C until homogeneous to obtain the final product of the composition.

[0024] Example 3 A composition of light-colored lignin, said composition comprising the following raw materials in parts by weight: 13 parts by weight of light-colored lignin Vanilla extract, 8 parts by weight 16 parts by weight of marshmallow extract Basil extract 4 parts by weight 10 parts by weight of Rooibos tea extract 5 parts by weight of γ-polyglutamic acid 45 parts by weight of butanediol.

[0025] The composition is prepared by: S1. Take half the weight of butanediol, add light-colored lignin and vanilla extract to it, stir at 25℃ for 1.5h, and let stand for 1h after stirring to obtain mixture A, which is ready for use. S2. Add marshmallow extract, basil extract, romaine tea extract and γ-polyglutamic acid to the remaining weight of butanediol in sequence. Stir at 23°C for 1 hour. After stirring, let stand for 20 minutes to obtain mixture B for later use. S3. Mix mixture A and mixture B at a controlled temperature of 28°C until homogeneous to obtain the finished product composition.

[0026] Example 4 A composition of light-colored lignin, said composition comprising the following raw materials in parts by weight: 10 parts by weight of light-colored lignin Vanilla extract 6 parts by weight 13 parts by weight of marshmallow extract Basil extract 8 parts by weight Rooibos tea extract 6 parts by weight 7 parts by weight of γ-polyglutamic acid 4.5 parts by weight of dimethicone 40 parts by weight of deionized water.

[0027] The composition is prepared by: S1. Take half the weight of deionized water and add light-colored lignin, vanilla extract and dimethicone to it. Stir at 23°C for 2 hours. After stirring, let stand for 0.5 hours to obtain mixture A for later use. S2. Add marshmallow extract, basil extract, rooibos tea extract and γ-polyglutamic acid to the remaining deionized water in sequence. Stir at 25°C for 1 hour. After stirring, let stand for 15 minutes to obtain mixture B for later use. S3. Mix mixture A and mixture B at a controlled temperature of 25°C until homogeneous to obtain the finished product composition.

[0028] Example 5 A composition of light-colored lignin, said composition comprising the following raw materials in parts by weight: 10 parts by weight of light-colored lignin Vanilla extract 6 parts by weight 13 parts by weight of marshmallow extract Basil extract 8 parts by weight Rooibos tea extract 6 parts by weight 7 parts by weight of γ-polyglutamic acid 8 parts by weight of dimethicone 40 parts by weight of deionized water.

[0029] The composition is prepared by: S1. Take half the weight of deionized water and add light-colored lignin, vanilla extract and dimethicone to it. Stir at 23°C for 2 hours. After stirring, let stand for 0.5 hours to obtain mixture A for later use. S2. Add marshmallow extract, basil extract, rooibos tea extract and γ-polyglutamic acid to the remaining deionized water in sequence. Stir at 25°C for 1 hour. After stirring, let stand for 15 minutes to obtain mixture B for later use. S3. Mix mixture A and mixture B at a controlled temperature of 25°C until homogeneous to obtain the finished product composition.

[0030] Example 6 A composition of light-colored lignin, said composition comprising the following raw materials in parts by weight: 10 parts by weight of light-colored lignin Vanilla extract 6 parts by weight 13 parts by weight of marshmallow extract Basil extract 8 parts by weight Rooibos tea extract 6 parts by weight 7 parts by weight of γ-polyglutamic acid 6 parts by weight of dimethicone 40 parts by weight of deionized water.

[0031] The composition is prepared by: S1. Take half the weight of deionized water and add light-colored lignin, vanilla extract and dimethicone to it. Stir at 23°C for 2 hours. After stirring, let stand for 0.5 hours to obtain mixture A for later use. S2. Add marshmallow extract, basil extract, rooibos tea extract and γ-polyglutamic acid to the remaining deionized water in sequence. Stir at 25°C for 1 hour. After stirring, let stand for 15 minutes to obtain mixture B for later use. S3. Mix mixture A and mixture B at a controlled temperature of 25°C until homogeneous to obtain the finished product composition.

[0032] Example 7 The composition obtained in Example 6 was used in the preparation of a skin care product, wherein the composition accounted for 5% of the total mass of the skin care product; The skincare product in question is a makeup base / isolation product.

[0033] Example 8 The composition obtained in Example 6 was used in the preparation of a skin care product, wherein the composition accounted for 12% of the total mass of the skin care product. The skincare product in question is a lotion.

[0034] Example 9 The composition obtained in Example 6 was used in the preparation of cosmetics, wherein the composition accounted for 9% of the total mass of the cosmetics; The cosmetic product in question is foundation.

[0035] Comparative Example 1 Compared with Example 6, the difference is that vanilla extract was not added in Comparative Example 1, while the other operation steps and parameters were the same.

[0036] Comparative Example 2 Compared with Example 6, the difference is that dimethicone was not added in Comparative Example 2, while the other operation steps and parameters were the same.

[0037] Comparative Example 3 Compared with Example 6, the difference is that no light-colored lignin was added in Comparative Example 3, while the other operation steps and parameters were the same.

[0038] Test Example 1 The compositions obtained in Examples 4-6 and Comparative Examples 1-3 were used to prepare isolation products (wherein, the compositions accounted for 5% of the total mass of the isolation products). Seventy-two volunteers were randomly divided into six groups of 12 each. 0.3g of the isolation products prepared from the compositions of Examples 4-6 and Comparative Examples 1-3 was applied to the wrists of each of the six groups of volunteers. At 0h, 6h, 12h, 18h, 24h, and 48h after application, the same aroma evaluator scored the aroma intensity on the volunteers' wrists and recorded the data. The aroma scoring criteria were: 0 points = no aroma, 3 points = faint aroma, 6 points = moderate aroma, and 10 points = strong aroma. The scores were taken as the average of each group. The results are shown in Table 1.

[0039] Table 1 As shown in Table 1, the product prepared using the composition of this invention has a richer and longer-lasting aroma. This is because the present invention incorporates vanilla extract, dimethicone, and light-colored lignin. Dimethicone forms a transparent, colorless, and protective film with the vanilla extract and light-colored lignin, creating a physical barrier to slow down leaching. This barrier reduces their direct contact with the external environment, thereby slowing down the evaporation rate, allowing for a longer-lasting release, and extending their residence time on the skin. Furthermore, the vanilla extract contains vanillin, vanillic acid, vanillyl alcohol, and p-hydroxybenzyl alcohol. Vanillin can interact with light-colored lignin molecules, inducing them to release more aroma, thus enhancing the fragrance and enriching its layers.

[0040] Comparative Examples 4-6 Compared with Example 6, the difference is that in Comparative Examples 4-6, the weight parts of marshmallow extract, basil extract and light lignin added are as shown in Table 2, while the other operation steps and parameters are the same.

[0041] Table 2 Test Example 2 The compositions obtained in Examples 4-6 and Comparative Examples 4-6 were used to make isolation products (wherein, the composition accounted for 5% of the total mass of the isolation products) in the same way. The SPF values ​​of each tested isolation product were tested according to the "Method for Determination of Long-Wave Ultraviolet Protection Index of Sunscreen Cosmetics", and the results are shown in Table 3 below.

[0042] Table 3 As shown in Table 3, the product prepared using the composition of this invention has excellent anti-ultraviolet (UV) activity. This is because the invention incorporates marshmallow extract, basil extract, and light-colored lignin, which work synergistically to protect against external UV rays and scavenge internal free radicals, thus enhancing the skin's UV defense capabilities through a multi-layered protective mechanism.

[0043] Comparative Example 7 Compared with Example 6, the difference is that in Comparative Example 7, no rooibos extract was added, while the other operation steps and parameters were the same.

[0044] Comparative Example 8 Compared with Example 6, the difference is that γ-polyglutamic acid was not added in Comparative Example 8, while the other operation steps and parameters were the same.

[0045] Test Example 3 Sixty volunteers aged 25-45 with dry skin problems were randomly divided into 5 groups of 12 each. The compositions obtained in Examples 4-6 and Comparative Examples 7-8 were used to prepare isolation products in the same way (wherein, the composition accounted for 5% of the total mass of the isolation products). At 0h and 12h after use, the skin moisture content was measured using a skin moisture meter to evaluate the skin moisture content before and after using the isolation products. The results are shown in Table 4.

[0046] Table 4 As shown in Table 4, the products prepared using the composition of this invention have excellent moisturizing effects. This is because this invention uses γ-polyglutamic acid to promote the proliferation of natural moisturizing factors in skin keratinocytes, allowing them to penetrate and macerate the stratum corneum, thus making the skin more transparent and moisturized. Furthermore, rooibos tea extract promotes the production of aquaporins, effectively promoting moisture retention while assisting γ-polyglutamic acid in moisturizing. Simultaneously, rooibos tea extract can effectively inhibit caspase activity, enhancing cell activity and revitalizing the skin, thereby achieving the effect of moisturizing and retaining moisture.

[0047] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The above description is merely an example and illustration of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A composition of light-colored lignin, characterized in that, The composition comprises the following raw materials in parts by weight: 10-15 parts by weight of light-colored lignin Vanilla extract 5-8 parts by weight 13-16 parts by weight of marshmallow extract Basil extract 4-8 parts by weight 6-10 parts by weight of rooibos tea extract 5-10 parts by weight of γ-polyglutamic acid Solvent 40-50 parts by weight.

2. The composition of light-colored lignin according to claim 1, characterized in that, The solvent includes any one of deionized water, octyldodecyl alcohol, propylene glycol, and butanediol.

3. The composition of light-colored lignin according to claim 1, characterized in that, The composition also includes dimethicone.

4. The composition of light-colored lignin according to claim 3, characterized in that, The dimethicone oil is present in a weight ratio of 4.5-8 parts by weight.

5. A method for preparing the composition according to any one of claims 3-4, characterized in that, The composition is prepared by: S1. Take half the weight of the solvent and add light-colored lignin, vanilla extract and dimethicone oil to it. Stir under controlled temperature and let stand to obtain mixture A for later use. S2. Add marshmallow extract, basil extract, rooibos tea extract and γ-polyglutamic acid to the remaining solvent in sequence, stir while controlling the temperature, and let stand after stirring to obtain mixture B for later use. S3. Mix mixture A and mixture B at a controlled temperature until homogeneous to obtain the final product of the composition.

6. The method for preparing the composition according to claim 5, characterized in that, The temperature for temperature-controlled stirring in step S1 is 23-25℃, and the time is 1.5-2h; the settling time is 0.5-1h.

7. The method for preparing the composition according to claim 5, characterized in that, The temperature for temperature-controlled stirring in step S2 is 23-25℃, the time is 0.5-1h, and the settling time is 10-20min.

8. The method for preparing the composition according to claim 5, characterized in that, The temperature at which the temperature is controlled and the mixture is homogenized in step S3 is 25-28℃.

9. The use of the composition according to any one of claims 1-4 in cosmetics or skin care products.

10. The application of the composition according to claim 9, characterized in that, The composition comprises 5-12% of the total mass of the cosmetic or skin care product.

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