JP2020508716A - Systems, devices, and methods, including sonic makeup applicator brushes - Google Patents

Abstract

A brush comprising a plurality of bristles having a crimped structure and a J structure, wherein the bristles are sufficiently distributed on a surface of an end portion of the brush; The J structure has a period length of 5 mm and a peak-to-peak length of 0.8 mm or less. A brush configured to have a difference in length from about 0.2 inches to about 0.5 inches.

Description

SUMMARY In one aspect, a brush comprises a plurality of bristles having a crimped configuration and a J configuration, such that the bristles are sufficiently distributed at a face of the end of the brush, and the crimped configuration of most bristles is 2 mm The J structure has a long length of about 0.02 inches to about 1.2 inches, and a period length of about 5 mm and a peak-to-peak length of 0.8 mm or less. And a difference between the short length and the short length is about 0.2 inch to about 0.5 inch.

In one embodiment, most bristles have a diameter from about 0.002 inches to about 0.02 inches.

In one embodiment, the long ends are tapered and the short ends are rounded or flat cut ends.

In one embodiment, the bristles are bent, the bent portions of the bristles are inserted into recesses in the base of the brush, and the bent bristles define the long and short lengths of the J-structure.

In one embodiment, the bristles comprise a blend of bristles of different diameters.

In one embodiment, the brush comprises 70% to 90% by weight of 3 mil bristles, 5% to 20% by weight of 4 mil bristles, and 5% to 20% by weight of 5 mil bristles. Including the total mass of the bristles. Here, the mill is defined as one thousandth of an inch (0.001).

In one embodiment, the bristles include multiple cross-sectional shapes.

In one embodiment, the bristles include solid and hollow bristles.

In one embodiment, the bristles are made from polybutylene terephthalate polyester, or a thermoplastic elastomer, or a combination thereof.

In one embodiment, the brush comprises a plurality of tufts of bristles, each tuft being separated from the other tufts by a space at the base of the brush, and the bristles having a uniform distribution of the bristle at the tip of the brush. To fill the space between the tresses.

In one aspect, a method for applying a liquid cosmetic comprises oscillating at a frequency of about 150 to about 185 Hz and a peak-to-peak amplitude of between about 1 ° to 18 °. Applying a liquid cosmetic to the skin surface.

In one aspect, the brush device is a brush head coupled to an electromechanical resonator of the device, the brush head being configured to reciprocate at an acoustic frequency, and one or more magnets on the brush head or device. One or more magnets configured to attract the iron-containing free particles.

In one embodiment, the magnet is a permanent magnet or an electromagnetic magnet.

In one embodiment, the brush comprises one or more brush head magnets located on the brush head and one or more device magnets located on the device adjacent to the brush head, and one or more The brush head magnet can be disposed between a first position and a second position, wherein the first position is a position where the brush head magnet has a magnetic field strength, and the second position is a brush head magnet. Is the shunt position where the magnetic field of the shunt decreases.

In one embodiment, the brush includes a timer that turns off the device after being turned on for a predetermined time.

In one embodiment, the brush head magnet is disposed on a first ring, the device magnet is disposed on a second ring adjacent to the first ring, and the first ring comprises a brush head magnet. It is rotatable to align with the magnet.

In one aspect, a method for applying dry cosmetic comprises applying dry cosmetic to the skin surface with a brush having a plurality of bristles and reciprocating at a sonic frequency, wherein the majority of the bristles are And has a diameter of 3-5 mils and a length of 0.3-0.7 inches.

In one embodiment, the dry cosmetic is loose powder or compact cake.

In one embodiment, the brush head has a vibration amplitude of 2 ° to 3 °.

In one embodiment, the method includes exfoliating the skin cells with a brush.

This summary is provided to introduce a selection of concepts in a simplified form, further described in the detailed description below. This summary is not intended to identify key features of the claimed invention, nor is it intended to be used as an aid in determining the scope of the claimed invention.

The foregoing aspects and many of the attendant advantages of the present invention will be more readily appreciated as they become better understood by reference to the following detailed description when taken in conjunction with the accompanying drawings.
FIG. 1 is a schematic diagram of a brush head attachment having a vibrating device and a brush, according to one embodiment. FIG. 2 is a schematic diagram of a cross-sectional view of a brush head attachment, according to one embodiment. FIG. 3 is a schematic illustration of bristles used to make a brush, according to one embodiment. FIG. 4 is a schematic illustration of bristles used to make a brush, according to one embodiment. FIG. 5 is a schematic diagram of a vibration device according to one embodiment. FIG. 6A is a schematic diagram of a portion of a vibration device, according to one embodiment. FIG. 6B is a schematic diagram of a portion of a vibration device, according to one embodiment.

DETAILED DESCRIPTION The following detailed description is related to the accompanying drawings, in which like numerals indicate like elements and are intended as descriptions of various embodiments of the disclosed invention. , Is not intended to represent the only embodiment. Each example described in this disclosure is provided by way of example or example only, and is not to be construed as preferred or advantageous over other embodiments. The illustrative examples provided herein are not intended to be exhaustive or to limit the claimed invention to the precise form disclosed.

The following description relates to examples of devices for skin care, and more specifically to brushes and replaceable brush heads suitable for use in personal care devices for skin treatment of any surface of a subject's body. An example is provided.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments of the present disclosure. However, it will be apparent to one skilled in the art that many embodiments of the present disclosure may be practiced without some or all of the specific details. Further, it will be understood that embodiments of the present disclosure may employ any combination of the features described herein.

Referring to FIG. 1, an example of the brush 30 attached to the brush head 20 is shown. In one embodiment, brush 30 has a set of bristles and defines a field of bristles. Brush 30 and brush head 20 are suitable for use in a personal care device, such as device 22. In one embodiment, the brush head 20 is rotated by the personal care device 22 on the subject's skin to apply a composition, such as a liquid foundation, cosmetic, lotion, cream, powder, etc., and vibrates. Vibrated, reciprocating, oscillated, or beating. In particular, one embodiment of a method for applying dry cosmetics is disclosed, and another embodiment for applying liquid cosmetics is disclosed.

In one aspect, a brush 30 is disclosed. In one embodiment, the brush 30 is configured on the brush head 20 for use in the device 22. However, other embodiments of the brush 30 are configured to be attached to a wooden or plastic handle (not shown). In one embodiment, the vibrating device 20 and the brush 30 with crimped bristles are used to apply a liquid containing a liquid foundation to the skin, face, or other area of the body. This method allows for the application of a smoother liquid foundation than manual application, resulting in reduced visibility of fine wrinkles, pores, and skin defects, resulting in longer lasting retention.

As shown in FIG. 1, the brush head 20 includes an outer surface 48 facing outward. The other side is connected to device 22. In the illustrated embodiment, the brush head 20 has a generally cylindrical cross-section, but other geometric cross-sections (ie, triangular, elliptical, leaflet, square, etc.) may be employed. In one embodiment, brush head 20 is constructed of a plastic, such as nylon, polypropylene, polyurethane, polyethylene, etc., but other materials including metals, such as aluminum, titanium, etc., may be utilized. In one embodiment, brush head 20 comprises a combination of plastic and metal.

The brush head 20 includes a brush section or brush 30. FIG. 2 is a schematic illustration of a cross-sectional view of the brush 30 taken near the brush head outer surface 48, where it is understood that the brush 30 is comprised of a plurality of tufts 32. In other words, the brush 30 does not consist of a single set of bristles. Each tuft 32 includes a plurality of bristles. In one embodiment, tufts 32 on brush head surface 48 are arranged on brush head surface 48 in various profiles or shapes. For example, the tufts 32 are arranged in a rhombus, square, circle, triangle, snowflake shape, or the like. As can be seen in FIG. 2, each tuft 32 is separated from the other tufts by a space at the base of the brush head 20. However, when the bristles of the tuft 32 are crimped, the crimped bristle fills the space between the tufts 32 at the brush tip 30 so as to evenly distribute the bristles.

In one embodiment, the brush head outer surface 48 includes a plurality of recesses, each recess holding a bunch of bristles. In one embodiment, each recess is separated from each other, and thus the tufts 32 of the outer surface 48 are separated from each other. The characteristics of the individual bristles are such that the individual tufts 32 cannot be recognized at the tip 34 of the brush 30. In other words, the tips of the bristles appear as uniformly distributed bristles rather than as tufts 32. In one embodiment, the bristles that make up the individual tufts 32 include one or more crimps. The crimp provides the brush 30 with a uniform distribution of bristles at the tip surface 34 of the brush 30 as opposed to the individual tufts 32. In one embodiment, the tip surface 34 of the brush 30 appears flat because all bristle lengths are similar. In another embodiment, the length of the bristles is longer at the center and shorter along the radial direction. Therefore, the brush 30 has an apex or a taper.

In one embodiment, each tuft 32 includes about 10 to 360 individual bristles. In one embodiment, each tuft 32 includes about 20-180 individual bristles. In one embodiment, each tuft contains 120-180 bristles per tuft, providing a 0.070 inch tuft. In one embodiment, the density of bristle chips at the application surface is about 10,000 to 15,000 chips per square inch, or any value in between. In one embodiment, the density of the bristle chips at the application surface is about 7,500 to 20,000 chips per square inch, or any value in between.

In one embodiment, the bristles have a length from about 0.20 inches (5.08 millimeters) to about 1.2 inches (30.48 millimeters) or more (from surface 48 to surface 34); It has a diameter in the range of about 0.002 inches (0.0508 millimeters) to about 0.020 inches (0.508 millimeters) or more. In one embodiment, not all bristle lengths are the same. In some embodiments, one tuft of bristles may have a longer length than another tuft of bristles. In one embodiment, tufts 32 near the center of brush 30 have longer bristles, and the length of the bristles decreases as the tufts are positioned radially outward. In one embodiment, the length of the bristles is not uniform, even within a single tuft 32. Bristle is composed of a variety of materials, including but not limited to elastomers, coelastomers, polymers, copolymers, and blends or combinations thereof. In another embodiment, the bristles can be natural, such as mammalian hair or fur.

In one embodiment, it is comprised of one or more bristle polybutylene terephthalate (PBT) polyester, or thermoplastic elastomer (TPE), or a TPE / PBT blend. Representative bristles are comprised of DuPontTynex®, SuperSoftHitrel® thermoplastic elastomer bristles, or DuPont Natrafil® polyester with high performance texture additives suitable for sonic applications. Bristle with different bending properties, such as different blends of DuPontTynex® nylon (ie, 6, 6.10, 6.12, etc.), are also selected depending on their intended use and desired properties. You. Other DuPontTynex® nylons, including DuPontTynex® PTFE, are employed in the bristle configuration. DuPontTynex® PTFE is, ie, Nylon 6.12 (ie, 0906). In one embodiment, the bristles are composed of or include an elastomer. In one embodiment, the bristles include an elastomer (eg, TPE) inner core and a polymer (eg, PBT) outer jacket. Although DuPont materials are referred to herein by their trade names, common equivalents and variations are polypropylene, polyethylene such as DuPontBynel®, as well as combinations or blends thereof. Etc. are also understood to be suitable for use.

In one embodiment, the bristles include, but are not limited to, solid or hollow, circular, rectangular, star-shaped, diamond-shaped, X-shaped, four-lobed cross-sections, and also textured surfaces. Including. In one embodiment, the addition of additives can enhance the acoustic resonance properties or provide additional benefits like silver zeolite for antimicrobial effects. In one embodiment, additives are used to modify and control the surface energy of the bristles. In one embodiment, the bristles also include antimicrobial additives that help prevent microbial growth.

Referring to FIG. 3, a schematic diagram of the bristle portion 100 is shown. The bristles 100 include two or more crimped structures along the length of the bristles. In one embodiment, the crimped structure in the bristles 100 has a crimp period length 102 (L ₁ ) of 2 mm to 5 mm and a peak-to-peak length 104 (L ₂ ) of 0.8 mm or less, or any within these ranges. Is defined as having a value of In one embodiment, the crimped structure in the bristles 100 has a crimp period length 102 (L ₁ ) of ₁ mm to 10 mm, and a peak-to-peak length 104 (L ₂ ) of 1.6 mm or less, or any within these ranges. Is defined as having a value of In one embodiment, the crimped structure of the bristles 100 has a crimp period length 102 (L ₁ ) of 0.5 mm to 20 mm, and a peak-to-peak length 104 (L ₂ ) of 3.2 mm or more, or a range therebetween. Is defined as having an arbitrary value of

Methods for crimping the bristles 100 generally include applying heat and pressure, or rolling the bristles 100 between fluted rolls. Another method for crimping the bristles 100 involves injecting high-pressure air toward the nozzle outlet when the bristles 100 are extruded. Other methods for crimping include the use of a matching set of crimp heads, where the head (die) has a cavity, and the opposing head (anvil) presses the bristles 100 against the cavity, and Form a contracted structure. Embodiments are not limited to any particular manufacturing method.

In one embodiment, a plurality of crimped bristles 100 are joined to form individual tufts 32. In one embodiment, the plurality of individual tufts 32 form a brush 30. In one embodiment, the plurality of bristles 100 having a crimped configuration form a uniformly distributed bristle surface 34 at the tip of the brush 30. In one embodiment, a uniform bristle surface means that when the brush 30 is viewed from the bristle ends, the bristle ends are evenly spaced from each other and have the appearance of having no visually discernible tufts. Means In other words, the bristle ends are evenly spaced from one another. In one embodiment, the bristles having a crimped structure are bonded together into multiple tufts, for example, resulting in a smoother application of the liquid foundation.

In one embodiment, the crimps of the bristles cause the brush to appear richer and busier and to look like a Kabuki makeup brush. Current cosmetic brushes are made by collecting large amounts of bristles and then gluing and fusing them together. This has the effect of having a uniform / regular bristle spacing distribution across the brush. In tufted brush structures (staple set or anchor-free), typical bristles tend to stand up (if tufted), forming a clear space between tufts, even at the end of the brush , Forming an empty space. The space between these tufts can cause "streaks" when applying cosmetics. This is because the ends of the tufts may push the liquid foundation into the gaps between the tufts. Thus, by crimping the bristles 100, the brush has a staple set tuft to achieve overcoming streaks.

In one embodiment, tuft 32 includes crimped bristles 100 having a plurality of diameters mixed in a ratio. A plurality of bristles 100 having a crimped structure may have advantages of stability and inertia in operation of the vibration device 22.

In one embodiment, the crimped bristles 100 are configured into individual tufts 32 with a J-offset structure, as shown in FIG. FIG. 4 shows a recess 210 in which the bent bristles 100 are located. It is understood that each tuft 32 will include a plurality of bristles 100. The bristles 100 are bent, and the bent side is disposed inside the recess 210. Therefore, the bristles 100 have a long 202 and a short 206. The length difference 208 is called a J offset. In one embodiment, the J offset or height difference 208 may vary from 0.20 inches to 0.50 inches. In one embodiment, the J offset or height difference 208 may vary from 0.10 inches to 1.0 inches. In one embodiment, the J offset or height difference 208 may vary from 0.05 inches to 1.5 inches. In one embodiment, the bristles 100 have an elongation or height 202 of about 0.20 inches (5.08 millimeters) to about 1.2 inches (30.48 millimeters) or greater and about 0.002 inches. It has a diameter in the range of inches (0.0508 millimeters) to about 0.020 inches (0.508 millimeters) or larger. In one embodiment, the bristles 100 have a length or height 202 of about 0.50 inches to about 2.5 inches and have a diameter in the range of about 0.001 inches to about 0.05 inches. In one embodiment, the bristles 100 of the brush 30 include a crimped configuration and a J configuration.

In one embodiment, the bristles 100 have an ultrafine taper 204 at the long end 202 and a rounded (non-tapered end) at the short length end 206. In one embodiment, the foundation is applied by using an ultrafine taper 204 at the long end 202 and a substantially circular non-tapered end at the short length 206 on the bristles 100. The effect of peeling is minimized. Exfoliation at the same time as the application of the liquid foundation has the potential for the exfoliated skin to mix into the foundation and reapply to the skin, resulting in an uneven finish. In one embodiment, the bristles 100 of the brush 30 include a crimped configuration, a J configuration, a tapered end at the long 202, and a rounded end at the short end 206, or any combination thereof.

In one embodiment, the definition of the ultrafine taper is that the taper length 204 on the tapered end of the bristles 100 is greater than 2 mm. In one embodiment, the definition of an ultrafine taper is that the taper length 204 on the tapered end of the bristles 100 is greater than 5 mm. In one embodiment, the definition of a hyperfine taper is that the taper length 204 on the tapered end of the bristles 100 is greater than 11 mm. The taper begins where the diameter of the bristles 100 becomes smaller than the maximum diameter of the bristles.

In one embodiment, the J offset structure in brush 30 provides a performance advantage. In one embodiment, the J-offset structure minimizes the risk of exfoliation during application by moving the non-tapered end farther from interaction with the skin. In one embodiment, the J offset structure creates a bristle density difference such that the bristle density increases below the J offset, thereby preventing the liquid foundation from moving further down the bristle. In one embodiment, the J offset is the same for all bristles in tuft 32 or in brush 30. In one embodiment, the J offset is different between the bristles of tuft 32 or across brush 30.

In one embodiment, when combined with the vibrating sonic technique, a fine tip profile / shape (e.g., a tip cross-section / diameter of 2 mils (0.2 mm)) on larger diameter bristles (e.g., greater than 5 mil diameter). 002 ") also provides a more uniform application.

In one embodiment, blending of the bristles 100 is controlled by grouping the bristles into groups or bundles by mass and / or fiber diameter prior to flocking. In one embodiment, the blend of bristles 100 has a plurality of portions that measure from 5% to 95% by mass. For example, in one embodiment, the blend of bristles 100 has the following ratio: 48 grams (80% by weight) of 3 mil bristles, 6 grams (10% by weight) of 4 mil bristles, 6 grams (10% by weight) of 5 mil bristles (here, 1/1000 of an inch of mill) Is shown). In one embodiment, the blend of bristles 100 has 70% to 90% by weight of 3 mil bristles. In one embodiment, the blend of bristles 100 has between 1% and 20% by weight 4 mil bristles. In one embodiment, the blend of bristles 100 has between 1% and 20% by weight 5 mil bristles. In all of the above, the bristles include crimped structures. In one embodiment, the bristles 100 include a crimped configuration, a J-offset configuration, a tapered long end, and a rounded short end.

The mixed diameter bristles with crimps can maintain a sufficiently light mass and enrich the brush appearance while more effectively coupling with most resonant vibrators.

In one aspect, the method of applying a liquid foundation, or any other liquid cosmetic, includes vibrating a brush in contact with the liquid cosmetic, wherein the brush comprises a crimped structure, a J offset structure, or a crimped structure. It includes multiple tufts of bristles 100 having both a structure and a J offset structure. In one embodiment, the bristles further include a tapered long end and a rounded short end. In one embodiment, the bristles 100 include blended diameter bristles in the indicated proportions. In one embodiment, the vibrating brush head 20 operates between 40 and 350 Hz. In one embodiment, the vibrating brush head 20 operates at a frequency between 150 and 185 Hz. In one embodiment, the oscillating brush head 20 oscillates between a peak-to-peak angular amplitude of 1 to 18 degrees. In one embodiment, the oscillating brush head 20 oscillates between a peak-to-peak angular amplitude of 1-18 degrees.

In one embodiment, the liquid composition comprises a liquid foundation. In one embodiment, the liquid composition is applied to the skin. In one embodiment, the skin is a face. In one embodiment, the method further comprises dry exfoliation of the skin, which helps to prepare the skin surface so that the cosmetics and the mixture are applied smoothly to the skin surface.

The method further includes applying an amount of the foundation to the skin using, for example, a fingertip, a sponge, or the like. Then, starting from the cheeks, a combination of device brush heads is used by moving the device 22 in a circular motion. In one embodiment, no or little pressure is applied. The foundation blend may include forehead, nose, and chin regions in this order. In one embodiment, longer bristles are used around corners and curves, such as the nose, below the eyes, above and between eyebrows, and around the lips. Using the above process can also prevent the liquid foundation from penetrating deeper into the brush, thus making it easier to clean and maintain sanitary conditions.

In another aspect, a method for applying a dry foundation is disclosed. In one embodiment, the dry cosmetic is applied using a device 22 that vibrates in the sonic range. Dry cosmetics include powders and compact cosmetics such as pressed cakes. This method results in a more effective application without excessive aerosol formation and a smooth glossy appearance.

FIG. 5 is a schematic diagram showing components of a device 22 for sonic application of cosmetics. Device 22 includes a power supply 402. In one embodiment, the power source includes a battery. In one embodiment, the power source includes an alternating current. In another embodiment, the power source is AC and the device includes an AC-DC transformer. Device 22 includes on / off control. In one embodiment, the on / off control is a manually operated switch. However, in another embodiment, the on / off control is based on a timer, block 406. Device 22 includes a power modulation circuit. In one embodiment, the power modulation circuit includes a circuit that can adjust and control the frequency (Hz) and the amplitude (degree) of the vibration. In one embodiment, the apparatus includes an electromechanical resonator, block 410. Electromechanical resonators are devices that resonate or vibrate at a frequency and amplitude selected by the application of electricity. Apparatus 22 includes a contact element, block 412. In one embodiment, the contact elements include a brush head 20 and a brush 30.

In one embodiment, the addition of one or more magnets to the brush head 20 reduces the amount of aerosol generated when removing cosmetics from a source and applying cosmetics. It is anticipated that the brush 30 will create a dust cloud, however, certain amplitudes and frequencies allow the bristles to be powder coated while preventing excessive accumulation. One or more magnets surrounding brush head 20 may also help reduce aerosols. Next, the brush containing the cosmetic comes into contact with the skin in need of the cosmetic and vibrates at the frequency of the sound. This transfers the cosmetic to the skin. During the application process, the bristles also loosen and remove lightly attached dry skin cells. These cells may be coated with cosmetics and visually enhanced, so that cosmetics applied manually may become flaky and uneven. In one embodiment of the method, the exfoliation of the cells causes the cosmetic to occupy the area previously occupied by the exfoliated cells, resulting in a smooth and shiny appearance. In one embodiment, the sonic application comprises dry exfoliation of the skin cells. Typically, consumers use an exfoliating cleanser to remove excessive dry or dead skin cell accumulation. However, brushes that vibrate at the acoustic frequency are used to gently remove this accumulation.

In one embodiment, the method is for the application of dry cosmetics, including but not limited to foundations, cheeks, bronzers, eye shadows, eye liners, concealers, and eyebrow cosmetics. In one embodiment, the dry cosmetic comprises an iron oxide pigment. In one embodiment, the foundation is a loose powder or pressed cake foundation. In one embodiment, the foundation includes a pigment, such as iron oxide, to hide defects and provide a healthier appearance to the skin. In one embodiment, the bronzer is used on the body to resemble a foundation, but to provide a tanned appearance to the consumer. In one embodiment, the teak is similar to a foundation but includes a red hue. Teak is applied to the cheeks of the face after the base foundation has been applied. The red hue provides a healthy glow and can be used to create the illusion of making the cheekbones higher. In one embodiment, the concealer is a type of foundation. Concealers are used, for example, to hide or hide the dark eyelids under the eyes and even the thin eyelids with obvious veins. In one embodiment, the eyeshadow comprises a highly colored powder applied to the eyelid to enhance the iris of the eye.

In one embodiment, the bristle material for the sonic application of the dry cosmetic is, but is not limited to, Tynex® nylon bristles, Supersoft elastomeric polymer (Hytrel®), or a combination thereof. Including combinations. In one embodiment, the bristle characteristics include a tip characteristic that is tapered or rounded, or a combination. In one embodiment, the method of applying the dry cosmetic comprises using a brush having bristles, wherein the bristles are 3-5 mils in diameter and 0.3-0.8 mm in length, or a combination thereof. Any value between the ranges. In one embodiment, the optimal range of bristle properties depends on the acoustic energy (frequency and amplitude) generated by the handle.

In one embodiment, the method of applying the dry cosmetic includes a brush head that vibrates with an amplitude of 2-3 degrees. In one embodiment, the method of applying the dry cosmetic includes a brush head that vibrates at an amplitude of 1-5 degrees or any amplitude within a range.

Several advantages can be observed in the application of dry cosmetics via sonic applications. In one embodiment, a smoother application of the cosmetic is observed after continuous use of the sonic cleansing brush. In one embodiment, when the skin is cleansed using Sonic, the dry cosmetic becomes smoother. In one embodiment, applying the dry cosmetic directly to the skin using a sonic application results in a uniform and shiny appearance without excessive dust aerosol. In one embodiment, the sonic application prepares the skin by removing loosely attached skin cells, and also provides excellent coverage and a minimal cosmetic layer requirement. In one embodiment, cells are known to respond to various stimuli, including mechanical stimuli. In one embodiment, the sonic effect increases blood flow, activates cells, promotes division, and increases collagen.

In one embodiment, brush head 20 includes a magnet. In one embodiment, the magnet picks up iron oxide, a common component of dry cosmetics. In one embodiment, the magnet prevents excessive aerosols and splashes when the cosmetic is picked up by the brush and during its application.

Referring to FIGS. 6A and 6B, a magnetic brush head 320 includes a brush portion 300 having bristles as described herein. The brush portion 300 is fitted or otherwise attached to the outer ring 302 having one or more magnets 306. As shown in FIG. 6A, individual brushhead magnets 306 may be located, for example, at the 12 o'clock and 6 o'clock positions on outer ring 302. In one embodiment, the outer ring 302 is attached to the brush head 30 that oscillates back and forth at the acoustic frequency. When the device 22 is turned on and used, the magnet 306 accumulates the remaining cosmetic. In one embodiment, the second inner ring 304 is located next to the inner ring 302. As such, the flat surfaces of the inner ring 302 and the outer ring 304 face each other. In one embodiment, second inner ring 304 is stationary with respect to device 22. In one embodiment, as shown in FIG. 6A, outer ring 302 has individual device magnets 308, for example, at the 3 o'clock and 9 o'clock positions. In one embodiment, outer ring 302 is rotatable and shifted (eg, 90 degrees) such that outer ring brushhead magnet 306 and inner ring device magnet 308 are aligned, as shown in FIG. 6B. Thus, the magnetic fields that oppose and cause the rest of the cosmetic to fall from the magnet 306 cancel out.

In one embodiment, magnets 304 and 308 are permanent magnets. In one embodiment, as in FIG. 6B, the outer ring 302 is disposed with the inner ring 304, so that the permanent magnets 306, 308 are in the shunt position and have little porcelain holding force to drop the cosmetic. In one embodiment, the magnet is not a permanent magnet. In one embodiment, the magnet is an electromagnet and can be turned off so that the surface of the magnet can be cleaned.

In one embodiment, turning on device 22 initiates a timer sequence. In one embodiment, the timer is set to time out after a certain period of time, automatically turning off device 22. The duration of the timer can be set from a few seconds to an infinite timeout (the user must turn off the device). In one embodiment, the operating period is 15 seconds.

In one aspect, the brush comprises a plurality of bristles having a crimped structure, so that the bristles are sufficiently distributed at the end face of the brush, and a majority of the crimped structure of the bristles has a period of 2 mm to 5 mm. It has a length between peaks of 0.8 mm or less. In one embodiment, the brush is between about 0.02 inches and about 1.2 inches long and the difference between the long and short lengths is between about 0.2 inches and about 0.5 inches. Further provided is a J structure. In one embodiment, most bristles have a diameter from about 0.002 inches to about 0.02. In one embodiment, the long ends are tapered and the short ends at a rounded or flat cut end. In one embodiment, the bristles are bent and the bent portions of the bristles are inserted into recesses in the base of the brush, where the bent bristles define the long and short lengths of the J-structure. In one embodiment, the bristles comprise a blend of bristles of different diameters. In one embodiment, the brush comprises 70% to 90% by weight of 3 mil bristles, 5% to 20% by weight of 4 mil bristles, and 5% to 20% by weight of 5 mil bristles. Including the total mass of the bristles. Here, a mill is defined as one thousandth of an inch (0.001). In one embodiment, the bristles include a plurality of cross-sectional shapes. In one embodiment, the bristles include solid and hollow bristles. In one embodiment, the bristles are made from polybutylene terephthalate polyester, or a thermoplastic elastomer, or a combination thereof. In one embodiment, the brush comprises a plurality of tufts of bristles, each tuft being separated from the other tufts by spaces at the base of the brush, and the bristles having a uniform distribution of bristles at the tip of the brush. To fill the space between the tresses.

In one aspect, the method for applying a liquid cosmetic comprises oscillating at a frequency of about 150 to about 185 Hz, and a peak-to-peak amplitude of between about 1 ° to 18 °, with the brush of claim 1. Applying a liquid cosmetic to the surface.

In one aspect, the brush device is a brush head coupled to an electromechanical resonator of the device, the brush head being configured to reciprocate at an acoustic frequency, and one or more brush heads or one or more on the device. One or more magnets configured to attract the iron-containing free particles. In one embodiment, the magnet is a permanent magnet or an electromagnetic magnet. In one embodiment, the brush comprises one or more brush head magnets disposed on the brush head and one or more device magnets disposed on a device adjacent the brush head, wherein the one or more brushes The head magnet can be disposed between a first position and a second position, wherein the first position is a position where the brush head magnet has a magnetic field strength, and the second position is the brush. This is the shunt position where the magnetic field strength of the head magnet decreases. In one embodiment, the brush comprises a timer that turns off the device after being turned on for a predetermined time. In one embodiment, the brush head magnet is disposed on a first ring, the device magnet is disposed on a second ring adjacent to the first ring, and the first ring comprises a brush head magnet. It is rotatable to align with the magnet.

In one aspect, a method for applying dry cosmetic comprises applying dry cosmetic to the skin surface with a brush having a plurality of bristles and reciprocating at a sonic frequency, wherein the majority of the bristles are 3-5 mil diameter, and 0.3-0.7 inch long. In one embodiment, the dry cosmetic is loose powder or compact cake. In one embodiment, the brush head has an amplitude oscillation between 2 ° and 3 °. In one embodiment, the method includes exfoliating the skin cells with a brush.

In one aspect, the brush comprises a plurality of bristle tufts, each tuft being separated from the other tufts by a space at the base of the brush, with the majority of the bristle of each tuft being between 2 mm and 5 mm peak. It has a crimp that is specified to have a length and a cycle length of 0.8 mm or less. In one embodiment, the bristles of the tuft are bent, the bent portion of the bristles is inserted into a recess at the base of the brush, and the bent bristles have a long and short length. In one embodiment, the elongate length is from about 0.02 inches to about 1.2 inches, and the difference between the elongate and short lengths is from about 0.2 inches to about 0.5 inches. . In one embodiment, most bristles have a diameter from about 0.002 inches to about 0.02. In one embodiment, the long ends are tapered and the short ends at the rounded end. In one embodiment, the bristles fill the space between the tufts at the tip of the brush to evenly distribute the bristles. In one embodiment, each tuft has two or more diameter blended bristles.

In one aspect, a method for applying a liquid cosmetic comprises the step of vibrating a brush having a plurality of bristle tufts to apply the liquid cosmetic to the skin surface, each tuft at the base of the brush, Most bristles of each tuft have a crimp defined by a peak-to-peak length of 2 mm to 5 mm and a periodic length of 0.8 mm or less. In one embodiment, the brush oscillates at a frequency of about 150 to about 185 Hz and a peak-to-peak amplitude between about 1 ° and 18 °.

In one aspect, the brush device is a brush head coupled to an electromechanical resonator of the device, the brush head configured to reciprocate at an acoustic frequency, and one or more magnets on the brush head or device. And one or more magnets configured to attract the iron-containing free particles. In one embodiment, the magnet is a permanent magnet or an electromagnetic magnet. In one embodiment, the one or more brush head magnets are disposed on a brush head, the one or more device magnets are disposed on a device adjacent to the brush head, and the one or more brush head magnets are The first position is a position where the brush head magnet has a magnetic field strength, and the second position is a shunt position where the magnetic field strength of the brush head magnet decreases. It is. In one embodiment, the brush head magnet is disposed on a first ring, the device magnet is disposed on a second ring adjacent to the first ring, and the first ring connects the brush head magnet to the device magnet. It can be rotated to align with

In one aspect, a method for applying dry cosmetic comprises a step of applying dry cosmetic to the skin surface with a brush having a plurality of bristle tufts and reciprocating at a sonic frequency, wherein each tuft comprises: At the base of the brush, it is separated from other tufts by a space, and most bristles in each tuft are crimped with a peak-to-peak length of 2 mm to 5 mm and a periodic length of 0.8 mm or less. Having. In one embodiment, the dry cosmetic is loose powder or compact. In one embodiment, the brush comprises a single bristle tuft. In one embodiment, the brush bristles have a diameter of 5 mils or less. In one embodiment, the brush bristles have a diameter of 3 mils or less. In one embodiment, the brush bristles have a length of 0.6 inches or less. In one embodiment, the brush head has a vibration amplitude of 2 ° to 3 °.

1. Brush head optimization method Measures the effectiveness of products evenly distributed on the skin surface using in-house validated methods and evaluates the sensation felt during and after applying cosmetics using questionnaire Then, the optimum brush head design for applying sonic cosmetics to the skin was determined. The method used to measure the amount applied to the skin is based on the height and coverage of the cosmetic quantified using the before and after images. A standard cosmetic brush and a sonic brush were placed on the Cake Foundation Compact for an equivalent amount of time. Next, a brush containing each cosmetic was applied to one of the two cheeks in a defined area for a predetermined time. Images were taken with a Canfield ™ camera before and after application.

Two types of bristles were tested. The two types of bristles have the following diameters: less than 3 mils, 3 mils, 4 mils, 5 mils, and more than 5 mils, and the following lengths: less than 0.3 inches, 0.3 inches, 0.325 inches, Includes Tynex (nylon) and Supersoft (TPE) of greater than 0.375 inch, 0.4 inch, 0.5 inch, 0.6 inch, 0.7 inch, and 0.8 inch. Bristles 5 mils in diameter, 0.375 inches in length or more have been acceptable for some people. However, most subjects could not withstand face contact for more than a few seconds.

2. Safety Test-TEWL and Redness Test This example investigated the results of a 1 minute exposure to sonic application on the cheek with limited movement using a brush made of bristles having a diameter of 0.4 mil. .

To confirm that the optimal design area was also safe, a peel safety assay was performed. In these safety studies, the amount of water vapor evaporating from the surface of the skin was measured before and after using the brush (without cosmetics) without moving the brush at one place for a time (1 minute). The area was measured using a non-invasive instrument. In undamaged skin, water evaporates at a constant rate, which is known as transepidermal water loss (TEWL). If the skin is damaged and the superficial cells are excessively removed, for example, if one rubs his knee, the TEWL will increase rapidly. The promotion of TEWL is common in products that are too strong and irritate the skin. By comparing the skin before and after the treatment with the sonic brush, the level of safety of each brush head design is determined.

The above data was collected using a 4 mil diameter, 0.6 inch long brush with Supersoft bristles. The 1 minute treatment time did not change the TEWL level, which is safe to use. Further, no change was observed in redness.

While exemplary embodiments have been shown and described, it will be appreciated that various changes can be made without departing from the spirit and scope of the invention.

Claims (20)

A brush, comprising a plurality of bristles having a crimped structure and a J structure, wherein the bristles are sufficiently distributed on an end surface of the brush, and a crimped structure of most of the bristles is 2 mm to 5 mm And the J structure has a long length of about 0.02 inches to about 1.2 inches, and the J structure has a long length and a short length. A brush having a length difference between about 0.2 inches and about 0.5 inches. The brush of claim 1, wherein a majority of the bristles have a diameter from about 0.002 inches to about 0.02. 2. The brush according to claim 1, wherein the elongated ends in a tapered shape and the short ends in a rounded end or a flat cut end. 2. The brush according to claim 1, wherein the bristles are bent, a bent portion of the bristles is inserted into a recess in a base of the brush, and the bent bristles are of the J configuration. A brush defining the long and short lengths; 2. The brush of claim 1, wherein the bristles include bristles of different diameter blends. 6. The brush of claim 5, wherein 70% to 90% by weight of 3 mil bristles and 5% to 20% by weight if the mill is defined as one thousandth of an inch (0.001). A brush having a total mass of bristles comprising 4% by weight of 4 mil bristles and 5% to 20% by weight of 5 mil bristles. The brush according to claim 1, wherein the bristles have a plurality of cross-sectional shapes. The brush according to claim 1, wherein the bristles include solid and hollow bristles. The brush according to claim 1, wherein the bristles are made from polybutylene terephthalate polyester, or a thermoplastic elastomer, or a combination thereof. 2. The brush according to claim 1, comprising a plurality of tufts of bristles, each tuft being separated from the other tufts by a space at the base of the brush, wherein the bristle is at a tip of the brush. A brush that fills the space between the tufts to distribute the bristles evenly. A method for applying a liquid cosmetic, wherein the brush oscillates at a frequency of about 150 to about 185 Hz and a peak-to-peak amplitude of between about 1 ° to 18 °. Applying a liquid cosmetic to the skin. A brush device,
A brush head coupled to the electromechanical resonator of the device, wherein the brush head is configured to reciprocate at a sound frequency;
One or more magnets on the brush head or device, wherein the one or more magnets are configured to attract iron-containing free particles; and
A brush device comprising: The brush device according to claim 12, wherein the magnet is a permanent magnet or an electromagnetic magnet. The brush device according to claim 12, wherein
One or more brush head magnets disposed on the brush head,
One or more device magnets disposed on the device adjacent to the brush head,
The one or more brush head magnets can be disposed between a first position and a second position, wherein the first position is a position where the brush head magnet has a magnetic field strength, The second position is a shunt position where the magnetic field strength of the brush head magnet decreases. 13. The device of claim 12, comprising a timer that shuts down the device after being on for a predetermined amount of time. 13. The device of claim 12, wherein the brush head magnet is disposed on a first ring, and wherein the device magnet is disposed on a second ring adjacent to the first ring, An apparatus, wherein one ring is rotatable to align the brush head magnet with the device magnet. A method for applying dry cosmetics,
Applying a dry cosmetic to the skin surface with a brush having a plurality of bristles and reciprocating at a sonic frequency, most of the bristles having a diameter of 3-5 mils, and 0.3-0. The method, which is 7 inches long. 18. The method according to claim 17, wherein the dry cosmetic is loose powder or compact cake. The method according to claim 17, wherein the brush head has a vibration amplitude of 2 to 3 degrees. The method according to claim 17, comprising exfoliating the skin cells with the brush.