TW202308593A - Cosmetic treatment method for scalp and hair and formulation and product for the same - Google Patents

Abstract

This invention provides a cosmetic treatment method for scalp and hair and formulation and product for the same. The formulation is a water-contained cosmetic composition having viscosity from 0.5 mPa.S to 1000 mPa.S and water content from 1wt.% to 99 wt.%. The water-contained cosmetic composition is filled in an ultrasonic atomizer to atomize the water-contained cosmetic composition to become micro droplets having average diameters from 10 nm to 100[mu]m. The hairs are lifted from a direction reversing the hair stream to expose scalp beneath the hairs. Let oscillator plates of the ultrasonic atomizer close to the scalp, and the atomized water-contained cosmetic composition is sprayed unto the scalp from the direction reversing the hair stream. Then, the scalp is massaged with a direction reversing the hair stream. The product is an ultrasonic atomizer containing water-contained cosmetic composition.

Description

Cosmetic treatment methods and formulations for scalp and hair and products thereof

The present invention relates to a scalp and hair beauty treatment method and formulation and its products, in particular to a water-containing cosmetic formulation and product that can be atomized using ultrasonic atomization technology, and its cosmetic treatment method applied to the scalp and hair.

Cosmetic and pharmaceutical products hope to achieve the best absorption rate when applied to human skin, so that the ingredients of the product can produce the maximum effect. However, human skin is composed of several types of cells. In addition to dead keratinocytes combining with each other to form a natural barrier, naturally produced sweat and oil make it difficult for cosmetics or pharmaceutical ingredients to penetrate and reach the main target tissues such as the dermis, endothelium, or subcutaneous tissue. . Therefore, in the technical field of cosmetics, improving skin absorption has become an important research direction.

Human hair and scalp are significantly different from hair and skin on other areas of the body. Hair is the only hair that continues to grow and grow longer in the human body. Its structure is mainly divided into medulla, cortex and epidermis from inside to outside. The cortex is the main structure of the hair, accounting for 70% to 80% of the hair volume. It is composed of protein fibers, and its components are easily combined with water. The water in the hair has a certain impact on the strength and beauty of the hair. The epidermis is also known as the hair lin sheet, and its growth direction is from the hair follicle end to the hair tail, like bamboo shoot skins overlapped alternately, and the edges are warped, forming a gap of about 3 microns under normal conditions. The hair lin sheet surface has Natural lipids that protect the inside of the hair from external damage. Hair washing, dyeing, ironing and other factors will reduce the water content of the cortex and reduce the overall health and beauty of the hair. The gap at the edge of the hair linen sheet expands, which further makes the hair frizzy. For hair beauty products, in addition to changing its color, curl, and shape, replenishing hair moisture and smoothing hair cuticles are often important demands.

The scalp is the area with the highest hair density on the surface of the human body. Due to differences in race genes, age, and gender, the number of scalp hair follicles can be as high as 100,000. In this case, a sebum film is formed. The constant secretion of sebum and sweat is also required for the growth of bacteria or mold, so the number of bacteria on the scalp is also the highest area in the epidermis of the human body. When physiological, disease or environmental changes cause abnormal oil-water balance, it is often accompanied by the growth and decline of different microorganisms, and microbial secretions further affect the health of the scalp and hair growth. Hair follicles are significantly different from hair follicles in other body parts. Hair follicles generally grow 1 to 4 hairs at the same time, and the opening of the hair follicles forms a funnel shape. Under healthy conditions, there should be an appropriate amount of oil secretion, which can block microorganisms. On the outside, too much or too little oil secretion will cause abnormal inflammation at the funnel or even deep in the hair follicles. Therefore, proper supplementation of hair moisture or increasing the water content of scalp cells can improve its health and appearance.

In addition to normal physiological functions, hair follicles are also a way for cosmetic or pharmaceutical products to be absorbed through the scalp. Because the funnel-shaped opening is about 60 to 70 microns, it is larger than the gap between sweat glands or the cuticle of the skin, and the root of the hair follicle is located deep in the dermis, close to the subcutaneous capillaries. Therefore, by miniaturizing cosmetic or pharmaceutical ingredients, It will be able to pass through the gap between the hair root and the cuticle of the skin, and conduct the functional ingredients deep into the skin, so as to achieve the purpose of increasing absorption.

When cosmetics are applied to the scalp or hair, they will be lost due to the influence of gravity. Therefore, when formulating many scalp and hair cosmetics, they aim to prolong the residence time, and add high molecular weight polymers to the formula to increase the viscosity of the formula. However, the surface of the scalp is not a smooth plane, but a complex three-dimensional structure formed by pores, hair, dead cells, etc. Excessively high viscosity of the formula also increases the surface tension of the formula, which makes it easier for the formula to contact the skin structure. , forming a three-dimensional void, but does not really increase the contact area. High-viscosity cosmetics are also not easy to remove excess parts, resulting in the complexity of cleaning after application. In the method of improving the formula, there is also the use of physical or chemical means to change the structure of hair protein or the tightness of scalp cutin, so as to improve the penetration of ingredients. This type of method often needs to destroy the normal structure of cells, but causes another type of physiological damage.

On the other hand, the research direction to improve the absorption of cosmetic or pharmaceutical ingredients is the technology of atomizing liquid.

Liquid atomization has been widely used in many fields, including industry, manufacturing, agriculture and medicine. The purpose of using liquid atomization in different fields is different, including increasing the total surface area of the liquid to increase the burning speed, improving the efficiency of surface coating processing, improving the accuracy of spray printing, improving the absorption of plant fertilizers, and accelerating drug delivery, etc. The purpose of atomization technology used in the field of cosmetics is similar to that in the field of medicine, which is to reduce the unit volume of the liquid, disperse the total volume, increase the surface area, and promote absorption by contact with the skin.

According to the energy transfer method of atomization, this technology can be divided into two types: mechanical atomization and ultrasonic atomization. Mechanical atomization includes pressurized atomization, two-fluid atomization, rotary disc spray, etc. Although mechanical atomization has been widely used in many fields, its disadvantages are high energy consumption and difficulty in controlling the size and speed of droplets.

It is known to apply atomized cosmetics to the scalp and hair by means of pressurized atomization. Pressurized atomization has the advantage of rapidly expelling the formulation. However, its spray speed also becomes its disadvantage at the same time. Because when the mist is sprayed to the surface, it will rebound due to the high speed, which causes most of the ingredients to overflow into the air, reducing the time of staying on the surface of the scalp or hair.

Ultrasonic atomization technology uses electric power to control the piezoelectric sheet to vibrate at a frequency of millions of times per second, generating fine standing waves on the liquid film, separating the liquid from the wave front and atomizing it. By adjusting the oscillation frequency, electric power, liquid physical and chemical properties and other variables, it can produce mist droplets with an average diameter of 10 microns or sub-micron level, and its size distribution is more concentrated than mechanical atomization, so it is suitable for many mist The industrial needs with high correlation between droplet size, such as drug delivery, are more suitable for ultrasonic atomization.

Although it has been proposed in the literature to use ultrasonic atomization to apply cosmetics or pharmaceutical ingredients to the scalp, the droplets produced by ultrasonic atomization have a low flight speed and are easy to form a suspended state in the air, and further due to gravity Settlement, and therefore its location, can be affected by the shape of the contacting surface. When this method is actually implemented on the scalp, it still needs to be able to avoid the physical barrier of the hair and settle on the surface of the scalp, or further fall on the opening of the hair follicle funnel, in order to make more use of the small droplets of the ultrasonic atomization, and the fog The advantage of concentrated drop size to enhance the absorption effect of cosmetic or pharmaceutical ingredients.

The opening of most hair follicles is not perpendicular to the skin, but along the direction of hair flow, forming an angle of 0 to 90 degrees with the skin surface, so the opening of the funnel also has a direction. Furthermore, when the water-soluble formula is applied to the scalp by smearing, it can deliver the ingredients deep into the skin, thereby enhancing the absorption effect.

At present, there is no beauty method that cosmetics or pharmaceutical ingredients are sprayed on the scalp in the form of ultrasonic atomization, and scalp massage is applied to promote absorption.

The present invention provides a water-containing cosmetic formula that can be applied to the scalp and hair and can be atomized by ultrasonic technology, which can increase the water content of scalp cells and replenish hair water, so as to improve the health and appearance of the scalp and hair.

According to one embodiment of the present invention, the aqueous cosmetic formulation of the present invention has a viscosity of 0.5 mPa.S to 1000 mPa.S and a water content of 1 to 99% by weight.

According to one embodiment of the present invention, the aqueous cosmetic formulation of the present invention contains at least one ingredient selected from the group consisting of 5 wt.% German chamomile, 1 wt.% vitamin B5, 3 wt.% hydrolyzed keratin and 1 wt.% sodium glycyrrhizinate.

In another aspect, the present invention provides a cosmetic treatment method for scalp and hair, which comprises the following steps: filling the cosmetic formula containing water into an ultrasonic atomizer; Atomize the cosmetic formula; lift the hair in the opposite direction of the hair flow to show the scalp below it; make the ultrasonic vibrating piece of the ultrasonic atomizer close to the scalp; put the atomized water-containing cosmetic formula in the opposite direction of the hair flow Spray onto scalp; and massage scalp in opposite direction of hair flow.

According to one embodiment of the present invention, in the cosmetic treatment method for scalp and hair of the present invention, the time for spraying the atomized water-containing cosmetic formula to the scalp in the opposite direction of hair flow is 5 to 20 minutes.

According to one embodiment of the present invention, in the cosmetic treatment method for scalp and hair of the present invention, the scalp is massaged in the opposite direction of hair flow for 5 to 20 minutes.

According to one embodiment of the present invention, in the cosmetic treatment method for scalp and hair of the present invention, the shortest linear distance between the ultrasonic vibrating plate of the ultrasonic spray machine and the surface of the scalp is 0.1 cm to 5 cm.

According to one embodiment of the present invention, the cosmetic treatment method for scalp and hair of the present invention is to make the vibration frequency of the ultrasonic vibrating plate of the ultrasonic spray machine be 20 kilohertz to 4 million hertz.

According to one embodiment of the present invention, the cosmetic treatment method for scalp and hair of the present invention uses the ultrasonic atomizer to atomize the aqueous cosmetic formula into droplets with an average diameter of 10 nm to 100 microns.

In another aspect, the present invention provides a cosmetic product suitable for use on the scalp and hair, comprising said aqueous cosmetic formulation and an ultra-fine atomizer suitable for atomizing the aqueous cosmetic formulation into droplets with an average diameter of 10 nanometers to 100 micrometers. Sonic atomizer.

According to one embodiment of the present invention, the ultrasonic atomizer included in the product of the present invention has at least one piezoelectric sheet whose vibration frequency is controlled by electricity to be 20 kHz to 4 million Hz.

Embodiments of the present invention will be described in detail below with accompanying drawings.

Please refer to FIG. 1 , which shows the process steps of a cosmetic treatment method for scalp and hair according to an embodiment of the present invention. First, in step 101, a cosmetic formula containing water is obtained and loaded into an ultrasonic atomizer. The aqueous cosmetic formulation has a water content of 1 to 99 weight percent and a viscosity of 0.5 mPa.S to 1000 mPa.S. The water-containing cosmetic formula can further include more than one cosmetic main ingredient, which can be used to provide the hair and scalp, including but not limited to the following effects: moisturizing, antibacterial, oil control, deodorant, anti-dandruff, cleansing, anti-inflammatory, calming, Soothes, repairs, grows, strengthens, reduces hair fall and more. For example, the aqueous cosmetic formulation may further contain at least one ingredient selected from the group consisting of 5 wt.% German Chamomile, 1 wt.% Vitamin B5, 3 wt.% Hydrolyzed Keratin and 1 wt.% Sodium Glycyrrhizinate. The ultrasonic vibrating sheet of the ultrasonic atomizer used in the present invention may include at least one piezoelectric sheet. Furthermore, the ultrasonic nebulizer of the present invention can be a hand-held nebulizer, so as to increase the convenience of the user. Next, in step 102, the vibration frequency of the ultrasonic vibration plate of the ultrasonic atomizer is controlled by electricity to be between 20 kilohertz and 4 million hertz, so as to facilitate the water-containing cosmetic formula to pass through the ultrasonic atomizer Atomization, and then spray droplets with an average diameter of 10 nanometers to 100 micrometers from the ultrasonic atomizer. In step 103 , see FIG. 2 , the hair is lifted against the hair flow to expose the underlying scalp. Next, in step 104, the ultrasonic atomizer is brought close to the exposed scalp so that the ultrasonic vibrating piece is located near the scalp. For example, the shortest linear distance between the ultrasonic vibrating piece and the scalp can be 0.1 cm to 5 cm. Next, in step 105, spray the atomized aqueous cosmetic formula to the exposed scalp in the opposite direction of the hair flow, for example, the preferred spraying time is 5 to 20 minutes, more preferably 5 minutes. Afterwards, in step 106, massage the scalp in the opposite direction of hair flow, preferably for 5 to 20 minutes, more preferably for 5 minutes.

The cosmetic treatment method for scalp and hair of the present invention is not limited to the sequence of steps shown in FIG. 1 , where steps 102 and 103 can be implemented before step 104 .

The characteristics of the water-containing cosmetic formulation of the present invention enable it to be atomized by ultrasonic atomization technology to form tiny mist droplets with an average diameter of 10 nanometers to 100 micrometers, thereby promoting skin/scalp absorption. Fig. 3 shows the comparative results of the water content of the scalp after spraying the atomized water-containing cosmetic formula of the present invention on the scalp with the ultrasonic sprayer of the present invention in the direction of hair flow and in the direction of reverse hair flow (i.e. in the opposite direction of hair flow). It can be seen from Fig. 3 that the water content of the scalp can exceed 75% after spraying the atomized water-containing cosmetic formula of the present invention on the scalp in the opposite direction of hair flow, but spray the atomized water-containing cosmetic formula of the present invention on the scalp in the direction of hair flow. The moisture content of the scalp is about 48% after five minutes.

Fig. 4 shows the results of comparison of scalp water content between non-massaging and massaged scalp after spraying the atomized aqueous cosmetic formulation of the present invention on the scalp. As can be seen from Figure 4, after spraying the atomized water-containing cosmetic formula of the present invention on the scalp and massaging the scalp for five minutes, ten minutes and twenty minutes, the moisture content of the scalp is increased by about 10% compared with that of the scalp without massaging.

The test results from Fig. 3 and Fig. 4 show that the water-containing cosmetic formula provided by the present invention can indeed form tiny mist droplets that are beneficial to skin absorption by ultrasonic atomization technology, and the cosmetic treatment method for scalp and hair of the present invention can indeed Achieve the effect of improving the moisture retention of the scalp and hair.

Fig. 5 shows the comparison of the water-containing cosmetic formulations with different water contents of the present invention atomized by the atomization technology of the present invention and then sprayed on the scalp to improve the moisture content of the scalp. It can be seen from Figure 5 that these cosmetic formulations with different water contents of the present invention can increase the water content of the scalp by 10% to 50% compared with before use after ultrasonic atomization and spraying on the scalp for five minutes, ten minutes, and twenty minutes %, especially ultrasonically atomized water-containing cosmetic formulations sprayed on the scalp for five minutes have the best effect, which can increase the moisture content of the scalp by 40% to 50% compared with before use.

In another aspect, the present invention also provides a cosmetic product suitable for use on the scalp and hair, wherein the aqueous cosmetic formula of the present invention is packaged in a device suitable for atomizing the aqueous cosmetic formula into droplets with an average diameter of 10 nm to 100 microns. Ultrasonic nebulizer. The cosmetic product of the present invention may be a hand-held ultrasonic atomizer packaged with the aqueous cosmetic formulation of the present invention and adapted to atomize the aqueous cosmetic formulation into droplets with an average diameter of 10 nanometers to 100 micrometers.

According to the above examples of the present invention, the water-containing cosmetic formula provided by the present invention can be atomized by ultrasonic technology and applied to the scalp and hair, and the use of the cosmetic treatment method for the scalp and hair of the present invention can indeed increase the moisture content and Replenish hair moisture to improve the health and appearance of scalp and hair.

101-106: Process steps of cosmetic treatment methods for scalp and hair

Figure 1 shows the flow chart of the cosmetic treatment method for scalp and hair according to the present invention.

Figure 2 shows the flow direction and reverse direction.

Fig. 3 shows the comparative results of the moisture content of the scalp sprayed in the direction of hair flow and against the direction of hair flow according to the present invention.

Fig. 4 shows the results of comparison of scalp water content between non-massage and massage in reverse hair flow direction according to the present invention.

Fig. 5 shows the results of comparison of the moisture content of the scalp after using the aqueous cosmetic formulations with different water contents according to the present invention.

101 to 106: Process steps of cosmetic treatment methods for scalp and hair

Claims (14)

A method of cosmetic treatment for scalp and hair comprising: Filling an aqueous cosmetic formula into an ultrasonic atomizer; atomizing the aqueous cosmetic formula with the ultrasonic atomizer; Lifts the hair against the flow to expose the scalp underneath; Make the ultrasonic vibrating sheet of the ultrasonic atomizer close to the scalp; spraying the atomized aqueous cosmetic formulation onto the scalp in the opposite direction of the hair flow; and Massage the scalp in the opposite direction of the hair flow. The cosmetic treatment method for scalp and hair as described in claim 1, wherein the step of spraying the atomized water-containing cosmetic formula to the scalp in the opposite direction of the hair flow has a spraying time of 5 to 20 minute. The cosmetic treatment method for scalp and hair according to Claim 1, wherein the massage time of the step of massaging the scalp in the opposite direction of the hair flow is 5 to 20 minutes. The cosmetic treatment method for scalp and hair as described in claim 1, wherein the step of bringing the ultrasonic vibrating sheet of the ultrasonic atomizer close to the scalp is to make the ultrasonic vibrating sheet and the The shortest straight-line distance on the surface of the scalp is 0.1 cm to 5 cm. The cosmetic treatment method for scalp and hair as described in Claim 1, wherein the viscosity of the aqueous cosmetic formula is 0.5 mPa.S to 1000 mPa.S. The cosmetic treatment method for scalp and hair as claimed in claim 5, wherein the water content of the aqueous cosmetic formula is 1 to 99% by weight. The cosmetic treatment method for scalp and hair as claimed in claim 6, wherein the aqueous cosmetic formula contains at least one ingredient selected from the group consisting of: 5wt.% German chamomile, 1wt.% vitamin B5, 3wt.% hydrolyzed keratin And 1wt.% sodium glycyrrhizinate. The cosmetic treatment method for scalp and hair as described in claim 1, wherein in the step of atomizing the cosmetic formula containing water with the ultrasonic atomizer, the ultrasonic vibration of the ultrasonic atomizer The vibrating frequency of the sheet is 20 kilohertz to 4 million hertz. The cosmetic treatment method for scalp and hair as claimed in claim 8, wherein the ultrasonic vibrating sheet includes at least one piezoelectric sheet. The cosmetic treatment method for scalp and hair as described in claim 1, wherein the average diameter of the droplet size of the aqueous cosmetic formulation is generated in the step of atomizing the aqueous cosmetic formulation with the ultrasonic atomizer 10 nanometers to 100 micrometers. A water-containing cosmetic formulation for scalp and hair, which has a viscosity of 0.5 mPa.S to 1000 mPa.S and a water content of 1 to 99 weight percent. The aqueous cosmetic formula for scalp and hair as claimed in claim 11, which further contains at least one ingredient selected from the following: 5wt.% German chamomile, 1wt.% vitamin B5, 3wt.% hydrolyzed keratin and 1wt. % sodium glycyrrhizinate. A cosmetic product suitable for scalp and hair, comprising: an aqueous cosmetic formulation and an ultrasonic atomizer suitable for atomizing the aqueous cosmetic formulation into droplets with an average diameter of 10 nanometers to 100 microns, wherein the Aqueous cosmetic formulations have a viscosity of 0.5 mPa.S to 1000 mPa.S and a water content of 1 to 99% by weight. The beauty product suitable for scalp and hair as claimed in claim 13, wherein the ultrasonic atomizer comprises at least one piezoelectric sheet whose vibration frequency is 20 kilohertz to 4 million hertz.

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