CN118141705A - Mild sweat-absorbing deodorizing essence and preparation method and application thereof - Google Patents

Abstract

The invention provides a mild sweat-absorbing deodorizing essence and a preparation method and application thereof, and belongs to the field of daily chemical industry. It comprises sweat absorbing particles, blood cooling plant extract, antibacterial plant extract, allergy-relieving plant extract and volatile oil. Unlike traditional chemical antiperspirant and deodorant products with sweat gland duct blocking and artificial interference on health perspiration, the present invention has the features of fast sweat absorption, high safety, fast drying, no trace, no stain, etc.

Description

A mild sweat-absorbing and deodorizing essence and its preparation method and application

Technical Field

The invention relates to the technical field of daily chemical industry, in particular to a mild sweat-absorbing and deodorizing essence and a preparation method and application thereof.

Background technique

Sweat secretion is controlled by temperature and emotions. It is an extremely important physiological function for maintaining and controlling body temperature and is of great significance for maintaining human health.

The formation and discharge of human sweat is controlled by nerves and completed by apocrine and eccrine glands. Eccrine glands are numerous and widely distributed, secreting sweat quickly, mainly used to regulate body temperature. The main component of the sweat secreted is water, containing about 0.3-0.8% sodium chloride, and trace amounts of lactic acid and urea. Apocrine glands are mainly concentrated in the armpits, scalp, genitals, around the eyes, and inside the external auditory canal. Affected by emotional changes, the sweat secreted is sticky and milky, containing high levels of organic components, such as lipids, proteins, enzymes, carbohydrates, salts, cholesterol, C19 androgen steroids, etc.

Sweat itself is a colorless, odorless, sterile liquid, but because the secretions of the large and small sweat glands and axillary hair provide nutrients, moisture and a good environment for the growth of bacteria in the armpits (such as Staphylococcus epidermidis, lipophilic pseudodiphtheria, etc.), the bacteria in the armpits are able to multiply in large numbers and degrade some of the organic matter in the sweat into substances with special odors such as isovaleric acid, androstenone, androstenol, thus producing the annoying sweat odor.

It can be seen that underarm sweating is the main factor causing underarm odor. Blocking the glands to prevent sweat from leaving the glands and being secreted to the skin surface is a commonly used method of antiperspirant and deodorization.

Commonly used antiperspirants include aluminum chloride, aluminum chlorohydrate, aluminum zirconium pentachlorohydrate and other aluminum salts and zirconium salts, and aldehydes such as formaldehyde and glutaraldehyde. They mainly bind to keratin and mucopolysaccharides in the sweat gland ducts, block the sweat gland ducts, and prevent the discharge of sweat. Antiperspirants can also be used by injecting anti-adrenaline, metabolic inhibitors, carnitine-A and other drugs. In addition, some plant extracts with the effects of cooling blood, promoting circulation, and inhibiting bacteria also have certain antiperspirant effects, such as mulberry leaf extract (both "Danxi Xinfa" and "Yi Shuo" record that mulberry leaves have antiperspirant effects), and many traditional Chinese medicines such as astragalus and Qinpi also have antiperspirant effects (Zhao Wei, A Brief Discussion on the Bidirectional Regulation of Astragalus, Shaanxi Traditional Chinese Medicine 1990. Vol. 20 No. 7); acrylic acid/acrylamide polymers and copolymers of acrylates are applied to the skin to form a thin film on the skin surface, thereby hindering the discharge of sweat and having a certain effect on reducing sweat secretion; removal of sympathetic nerves and sweat glands is also used to reduce sweating.

As we all know, sweating has many benefits for human health, such as expelling metabolic waste and harmful substances that invade the body, accelerating blood flow, dilating capillaries, cleaning pores, and even controlling blood pressure and losing weight. If human sweating is excessively suppressed, it will inevitably have a certain impact on human health.

With the continuous advancement of science and technology, the safety of aldehyde antiperspirants, drug antiperspirants and surgery, the irritation and residual staining of metal salt antiperspirants have been constantly questioned, affecting the sales and application of deodorant and antiperspirant products.

At present, there is a certain market demand for antiperspirant and deodorant products that are safe, effective, and do not damage or stain clothes.

Summary of the invention

In order to solve the shortcomings of existing sweat-absorbing and deodorizing products on the market, the present invention provides a mild sweat-absorbing and deodorizing essence and its preparation method and application. The essence of the present invention has the characteristics of rapid sweat absorption, antibacterial and deodorizing, high safety, rapid drying, refreshing and breathable, no staining and convenient use.

The technical solution of the present invention specifically includes the following parts:

The first object of the present invention is to provide a mild sweat-absorbing and deodorizing essence, comprising the following raw material components, measured by weight: 0.1-20 parts of sweat-absorbing particles, 0.1-5 parts of blood-cooling plant extracts, 0.1-5 parts of antibacterial plant extracts, 0.1-5 parts of soothing plant extracts, and the remainder being volatile oils.

In one embodiment of the present invention, the INCI name of the sweat-absorbing particles is sodium acrylate (ester) cross-linked polymer-2 and/or sodium polyacrylate, and the particle size range is 10μm-100μm, and the appearance is porous microspheres or fine gravel-like particles; the sweat-absorbing particles are different from the common carbomer thickening powders that form a three-dimensional network structure in water. The water-absorbing particles use osmotic pressure to quickly swell in water without agglomeration, have excellent water absorption and water locking capabilities, can absorb and lock water equivalent to 100-500 times its own weight, and have an unparalleled refreshing and breathable powdery texture and velvety silky feel.

In one embodiment of the present invention, the blood-cooling plant extract is selected from oil-soluble plant extracts with certain blood-cooling, collateral-drying, astringent and antibacterial effects; selected from one or more of Hamamelis virginiana extract, Faunus acuminata extract, Astragalus membranaceus extract, mulberry leaf extract, Equisetum arvense extract, Potentilla fragrans extract and Achyranthes bidentata root/leaf extract.

In one embodiment of the present invention, the antibacterial plant extract is a plant extract with antibacterial (axillary flora such as Staphylococcus epidermidis and lipophilic Pseudodiphtheriae) effect; it is selected from one or more of Melaleuca alternifolia leaf oil, persimmon fruit extract (oil-soluble) and lemongrass leaf oil.

In one embodiment of the present invention, the soothing plant extract is an oil-soluble plant extract of natural origin; selected from one or more of bisabolol, turmeric root extract, peppermint extract, ginger root extract, caper fruit extract and purslane extract.

In one embodiment of the present invention, the volatile oil is a volatile oil commonly used in the cosmetics field, selected from one or more of isododecane, neopentyl glycol diheptanoate & isododecane, triheptanoin & C13-15 alkane, undecane & tridecane, cyclopentasiloxane, C9-12 alkane & coconut oil alcohol-caprylate/caprate, and polydimethylsiloxane (0.65cst). The volatile oil mainly plays the role of uniformly dispersing the sweat-absorbing particles, and can evaporate quickly after contacting the human body surface skin, playing the role of rapid drying.

The second object of the present invention is to provide a method for preparing the mild sweat-absorbing deodorant essence, comprising the following steps:

The sweat-absorbing particles, blood-cooling plant extracts, antibacterial plant extracts and allergy-relief plant extracts are sequentially added into volatile oils and fats, mixed and stirred evenly to obtain the mild sweat-absorbing and deodorizing essence.

The third object of the present invention is to provide the use of the mild sweat-absorbing deodorant essence in a spray without propellant.

The above technical solution of the present invention has the following advantages compared with the prior art:

The mild sweat-absorbing and deodorizing essence described in the present invention does not contain traditional antiperspirants such as aluminum chlorohydrate and aluminum zirconium pentachlorohydrate that block the sweat gland ducts. Instead, it uses sweat-absorbing particles that can efficiently absorb sweat and have high safety, and is compounded with safe ingredients such as blood-cooling plant extracts and antibacterial plant extracts. It does not affect the normal perspiration of the human body, and at the same time has the characteristics of rapid sweat absorption, antibacterial deodorization, high safety, rapid drying, refreshing and breathable, no trace of staining, and easy use.

The mild sweat-absorbing and deodorizing essence is poured into an ordinary spray bottle with good atomization effect (shake well before use). There is no need to use aerosol cans or add dangerous propellants such as butane, isobutane, propane, etc., which not only reduces production costs but also improves product safety and the convenience of carrying on board.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein

FIG. 1 is the appearance of the sweat-absorbing particles in Example 1 of the present invention when dry.

FIG. 2 is an appearance of the sweat-absorbing particles after absorbing water in Example 1 of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

The preparation method of the mild sweat-absorbing and deodorizing essence of the present invention comprises the following steps:

The sweat-absorbing particles, blood-cooling plant extracts, antibacterial plant extracts and allergy-relief plant extracts are sequentially added into volatile oils and fats, mixed and stirred evenly to obtain the mild sweat-absorbing and deodorizing essence.

The blank control mentioned in the present invention refers to a blank control without material body.

Example 1

The mild sweat-absorbing deodorizing spray inner material of the present embodiment is composed of the following components in parts by weight:

Sweat-absorbing particles: 10.00 parts of sodium acrylate cross-linked polymer-2; 2.00 parts of blood-cooling plant extract: 2.00 parts of root/leaf extract of Elaeagnus sylvestris; 0.50 parts of antibacterial plant extract: 0.50 parts of Melaleuca alternifolia leaf oil; 0.50 parts of allergy-soothing plant extract: 0.50 parts of Capparis spinosa fruit extract; volatile oils: 32.00 parts of isododecane, 55.00 parts of undecane & tridecane.

Example 2

The mild sweat-absorbing deodorizing spray inner material of the present embodiment is composed of the following components in parts by weight:

Sweat-absorbing particles: 15.00 parts of sodium polyacrylate; blood-cooling plant extract: 2.00 parts of Fraxinus acuminata extract; antibacterial plant extract: 0.20 parts of lemongrass leaf oil; soothing plant extract: 0.30 parts of ginger root extract; volatile oil: 82.50 parts of cyclopentasiloxane.

Comparative Example 1

The antiperspirant body lotion of this embodiment is composed of the following components in parts by weight:

Antiperspirant: 8.00 parts of aluminum chlorohydrate; antibacterial agent: 0.50 parts of phenoxyethanol; oil: 5.00 parts of neopentyl glycol diheptanoate (and) isododecane; emulsifier: 2.50 parts of PPG-15 stearyl ether, 2.00 parts of steareth-2, 12.00 parts of steareth-2; soothing agent: 0.20 parts of dipotassium glycyrrhizate; 79.80 parts of deionized water.

Compared with Example 1, Comparative Example 1 is a traditional antiperspirant containing an aluminum salt sweat absorbent - aluminum chlorohydrate.

Comparative Example 2

The mild sweat-absorbing deodorizing spray inner material of the present embodiment is composed of the following components in parts by weight:

Blood-cooling plant extract: 2.00 parts of the root/leaf extract of the elm tree; 0.50 parts of the antibacterial plant extract: 0.50 parts of the Melaleuca alternifolia leaf oil; 0.50 parts of the allergy-relief plant extract: 0.50 parts of the caper fruit extract; 32.00 parts of isododecane and 65.00 parts of undecane & tridecane as volatile oils.

Compared with Example 1, Comparative Example 2 is a sweat-absorbing deodorizing spray inner material that does not contain sweat-absorbing particles.

Comparative Example 3

The mild sweat-absorbing deodorizing spray inner material of the present embodiment is composed of the following components in parts by weight:

Sweat-absorbing particles: 15.00 parts of sodium polyacrylate; antibacterial plant extract: 0.20 parts of lemongrass leaf oil; soothing plant extract: 0.30 parts of ginger root extract; volatile oil: 84.50 parts of cyclopentasiloxane.

Compared with Example 2, Comparative Example 3 is a sweat-absorbing and deodorizing spray inner material that does not contain the blood-cooling plant extract.

Comparative Example 4

The mild sweat-absorbing deodorizing spray inner material of the present embodiment is composed of the following components in parts by weight:

Sweat-absorbing particles: 15.00 parts of sodium polyacrylate; blood-cooling plant extract: 2.00 parts of Fraxinus acuminata extract; volatile oil: 83.00 parts of cyclopentasiloxane.

Compared with Example 2, Comparative Example 4 is a sweat-absorbing and deodorizing spray inner material that does not contain antibacterial plant extracts and soothing plant extracts.

The materials prepared in Examples 1 and 2 and Comparative Examples 1-4 were evaluated for performance, including:

1. Security Testing

The absorbent/antiperspirant deodorant materials prepared in Examples 1 and 2 and Comparative Examples 1-4 were subjected to a 48-hour human skin closure test. 30 healthy volunteers aged 25-45 were selected, and 0.020g-0.025g of the sample was placed in a spot tester, and a special adhesive tape was applied to the back of the volunteer. After 24 hours, the spot tester was removed and the sample was wiped clean. The skin reactions of the volunteers were observed at 0.5, 24, and 48 hours, and the results were recorded according to the skin reaction grading standard in the "Safety Technical Specifications for Cosmetics" (2015 Edition). The specific results are shown in Table 1:

Table 1

As can be seen from Table 1, Examples 1 and 2, Comparative Examples 2 and 3 containing the mild sweat absorbing deodorant composition prepared according to the present invention had no adverse skin reactions in human skin patch tests, while Comparative Example 1 containing an aluminum salt antiperspirant and Comparative Example 4 not containing a soothing plant extract occasionally had irritation reactions, indicating that the sweat absorbing deodorant product containing the composition prepared according to the present invention will not cause irritation to the skin.

2. Sweat absorption effect test

Currently, the commonly used methods for evaluating sweat absorption effect include weight method, water vapor method, conductivity method, dyeing method, silicone molding method, etc. Each method has its own advantages and disadvantages. Among them, the weight method is suitable for measuring the situation where the amount of sweat secretion is large. The water vapor method, conductivity method and dyeing method are simple, fast and sensitive to operate, but the error is large when used for evaluating sweat absorption effect.

In order to facilitate operation and reduce errors, this sweat absorption effect test was conducted on the back of volunteers using the weight method.

The sweat absorption effect test was conducted in a constant temperature and humidity greenhouse at 37.8±1.1℃ and a relative humidity of 35-40%. 20 male volunteers aged 25-45 were selected, and 7 5cm*5cm areas were selected on their backs and randomly coded. Then, samples of 2 embodiments, 4 comparative samples, and 1 blank control were randomly assigned to these 7 areas, so that the probability of each area being assigned to each sample was as equal as possible to reduce the error caused by different test sites. Then, 0.25 grams of the samples of the 2 embodiments and 4 comparative examples were weighed and evenly applied to the 5cm*5cm area on the back of the volunteers. After the samples dried for 5 minutes, they were covered with sweat-absorbing cotton pads of the same size and weight. The test process lasted for 80 minutes, and then the weight of each sweat-absorbing cotton pad after sweat absorption was tested, and the sweat absorption effect (expressed as the mass fraction of sweat reduction) was calculated according to the following formula:

Sweat reduction mass fraction = (1-weight of sweat-absorbing cotton pad at sample test site/weight of sweat-absorbing cotton pad at blank control site)*100%,

The results of averaging the values of each group are shown in Table 2:

Table 2

sample name Sweat reduction mass fraction (∑) Example 1 46.68% Example 2 38.47% Comparative Example 1 42.17% Comparative Example 2 6.32% Comparative Example 3 33.22% Comparative Example 4 36.89%

It can be seen from the results in Table 2 that the sweat absorption effect of the samples containing both sweat-absorbing particles and blood-cooling plant extracts (Examples 1 and 2) is equivalent to that of the comparative example 1 containing 8.00 wt% aluminum chlorohydrate, while the sweat absorption effects of comparative example 2 without sweat-absorbing particles and comparative example 3 without blood-cooling plant extract are weaker than those of examples 1 and 2, respectively, especially comparative example 2 without sweat-absorbing particles. This indicates that the synergistic effect of sweat-absorbing particles and blood-cooling plant extracts can achieve better sweat absorption effect and meet the actual use needs in daily life.

3. Deodorization efficacy test

Currently, methods for evaluating deodorant efficacy include instrumental analysis using gas chromatography or gas detection tubes to analyze volatile components in sweat, microbiological evaluation that indirectly tests axillary bacteria, and sensory evaluation that directly uses the sense of smell.

Because the composition of sweat odor varies from person to person, the quantitative analysis of sweat odor using instrumental analysis has certain deviations; the microbiological evaluation method is separated from the armpit environment to culture bacteria, and the results also have certain deviations and are not direct enough; the sensory evaluation method takes into account the real environment of the armpit and is more accurate than the instrumental analysis method and microbiological evaluation. Therefore, this deodorant efficacy test uses the sensory evaluation method, and the specific test methods and results are as follows:

Like the above-mentioned sweat absorption efficacy test, this deodorization effect test was also conducted in a constant temperature and humidity greenhouse at 37.8±1.1°C and a relative humidity of 35-40%. This test selected 35 volunteers (35 males and 5 females) aged 25-45, randomly coded their 70 armpits, and then randomly assigned 2 samples of the embodiments, 4 samples of the comparative examples, and 1 blank control to the 70 armpits, so that the probability of each armpit being assigned to each sample was as equal as possible to reduce the error caused by individual differences.

Then, samples of 2 embodiments and 4 comparative examples (3.00 g each) were weighed and evenly applied to the non-blank control armpits of volunteers (the blank control armpits were not coated with any material), and the test process lasted for 240 minutes. Then, 5 well-trained and smell-sensitive appraisers blindly evaluated the smell of the armpits, and the scoring range was 0-5 points according to no odor, almost no obvious odor, slight odor, moderate odor, strong odor, and severe odor, that is, the higher the score, the more serious the odor, and then the results were counted and the average was taken. The specific results are shown in Table 3:

table 3

sample name Smell sensory score (∑) Example 1 0.65 Example 2 0.78 Comparative Example 1 0.64 Comparative Example 2 2.86 Comparative Example 3 1.69 Comparative Example 4 1.27 Blank control 3.26

From the results in Table 3, it can be seen that the deodorizing effect value is highly consistent with the above-mentioned sweat absorbing effect value, which further illustrates that the deodorizing effect of the samples containing both sweat absorbing particles and blood-cooling plant extracts (Examples 1 and 2) is equivalent to the deodorizing effect of Comparative Example 1 containing 8.00wt% aluminum chlorohydrate, while the effect of only containing sweat absorbing particles or blood-cooling plant extracts is much weaker, and the effect of not containing antibacterial plant extracts is also weaker. It shows that the synergistic effect of sweat absorbing particles, blood-cooling plant extracts, and antibacterial plant extracts can achieve a better deodorizing effect and meet the actual use needs in daily life.

Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims (10)

1. A mild sweat-absorbing and deodorizing essence, characterized in that it comprises the following raw material components, measured by weight: 0.1-20 parts of sweat-absorbing particles, 0.1-5 parts of blood-cooling plant extracts, 0.1-5 parts of antibacterial plant extracts, 0.1-5 parts of soothing plant extracts, and the balance is volatile oils. 2. The mild sweat-absorbing deodorant essence according to claim 1 is characterized in that the sweat-absorbing particles are sodium acrylate (ester) cross-linked polymer-2 and/or sodium polyacrylate; the particle size range is 10μm-100μm; and the appearance is porous microspheres or fine gravel-like particles. 3. The mild sweat-absorbing and deodorizing essence according to claim 1 is characterized in that the blood-cooling plant extract is selected from oil-soluble plant extracts having blood-cooling, collateral-dredging, astringent and antibacterial effects. 4. The mild sweat-absorbing and deodorizing essence according to claim 3, characterized in that the blood-cooling plant extract is selected from one or more of Hamamelis virginiana extract, Fraxinus acuminata extract, Astragalus membranaceus extract, mulberry leaf extract, Equisetum arvense extract, Potentilla fragrans extract and Alpinia bucolica root/leaf extract. 5. The mild sweat-absorbing and deodorizing essence according to claim 1, characterized in that the antibacterial plant extract is a plant extract with antibacterial effect. 6. The mild sweat-absorbing and deodorizing essence according to claim 5, characterized in that the antibacterial plant extract is selected from one or more of Melaleuca alternifolia leaf oil, persimmon fruit extract and lemongrass leaf oil. 7. The mild sweat-absorbing and deodorizing essence according to claim 1, characterized in that the soothing plant extract is selected from one or more of bisabolol, turmeric root extract, peppermint extract, ginger root extract, caper fruit extract and purslane extract. 8. The mild sweat-absorbing deodorant essence according to claim 1, characterized in that the volatile oil is selected from one or more of isododecane, neopentyl glycol diheptanoate & isododecane, triheptanoin & C13-15 alkane, undecane & tridecane, cyclopentasiloxane, C9-12 alkane & coconut oil alcohol-caprylate/caprate and polydimethylsiloxane with a viscosity of 0.65 cst. 9. A method for preparing the mild sweat-absorbing deodorant essence according to any one of claims 1 to 8, characterized in that it comprises the following steps: The sweat-absorbing particles, blood-cooling plant extracts, antibacterial plant extracts and soothing plant extracts are sequentially added into volatile oils and fats, mixed and stirred evenly to obtain the mild sweat-absorbing and deodorizing essence. 10. Use of the mild sweat-absorbing deodorant essence according to any one of claims 1 to 8 in a spray without a propellant.