KR200380980Y1 - A test kit for visualizing fine lines and wrinkles on a person's skin - Google Patents

Abstract

A test kit and method are provided for observing fine lines and wrinkles, the kit comprising a transparent strip 2 with an adhesive on one surface and an imaging substrate having at least one dark, smooth area for receiving the transparent strip. . Instructions are provided in the kit. This tells the consumer to place the adhesive surface of the strip on the area of the skin that needs to be measured. The strip is then removed and placed on the dark area of the substrate. The morphological features of the skin can be seen through the transparent strip where the image of the skin is moved against a dark background. Anti-aging cosmetics can be applied to the skin over a period of time. Beneficial changes caused by the cosmetics are observed through test strips obtained by periodic measurements.

Description

Test kit for observing fine lines and wrinkles on human skin {A TEST KIT FOR VISUALIZING FINE LINES AND WRINKLES ON A PERSON'S SKIN}

The present invention relates to test strips for assessing changes in skin wrinkles, in particular in the context of measuring the efficacy of anti-aging cosmetics.

Numerous publications have published test devices in which the average person self-diagnoses their skin condition. United States Patent No. 3,571,947 (Maddison et al.) Discloses a system for identifying skin damage. Imprints of various forms of conventional damage on plastic flexible, handleable films. These reflect different skin diseases. Cross-reference them with a guide to identifying diseases from the form of skin damage. Cross-index handling also provides suggested therapies for treating the medical condition.

US Pat. No. 5,727,949 to Bar-Or et al. Provides a dual loop panel reference card. The panel is placed for relative movement whereby the selected diagnostic features of the skin problem can be aligned with the second diagnostic feature and the measurable prognosis can be found from the specifically paired features.

CuDerm Corporation has developed a simple diagnostic test to measure the degree of dry skin. CuDerm uses an adhesive disk (D-Squame) that can remove small parts of squamous cells (skin cells) and compares the results with the chart. The disc is a transparent plastic with adhesive on one side. The test involves placing the adhesive surface of the disk on the ball of the user, peeling off the disk and placing it on a card with a dark background. Flakes from the skin adhere to the adhesive surface and appear contrasted against a dark background. In addition to flaky flakes, no morphological traces are collected from the skin of the user to be evaluated.

There are many cosmetic products on the market that promote certain skin benefits. Consumers usually cannot easily discern whether the benefits being claimed are actually communicated. Although recognizable, these active ingredients impart an effect that can only occur slowly over a period of time. Anti-aging active ingredients are in particular examples. Fine lines and wrinkles on the face can be minimized by active ingredients such as alpha hydroxycarboxylic acid and / or retinol, showing some visual improvement over an extended period of use. They do not act immediately.

Thus, it is an advantage of the present invention to provide a simple, low cost test that allows consumers to self-evaluate the anti-aging benefits of cosmetics over a long period of time.

Another advantage of the present invention is to provide a low cost, simple self-assessment tool for measuring changes in fine lines and wrinkles on the face or in other aging parts of human skin.

This design

(i) a transparent strip provided on one surface with an adhesive sufficient to maintain a mark of fine lines and wrinkles after peeling the strip from the skin;

(ii) an imaging substrate having at least one dark area for receiving a transparent strip; And

(iii) the adhesive surface of the strip is placed in the skin area in need of measurement, the strip is removed and placed in the dark area of the substrate, and the above-mentioned process is subsequently repeated and the application of the first and second strips to the skin Description in the kit instructing the consumer to compare the pattern generated from the

It provides a test kit for observing wrinkles and wrinkles on the skin of a person comprising a.

Furthermore, it provides a method for evaluating the efficacy of anti-aging cosmetics, which method

(A) (i) a transparent strip provided on one surface with an adhesive sufficient to maintain the marks of fine lines and wrinkles after peeling the strip from the skin; And

   (ii) an imaging substrate having at least one dark area for receiving a transparent strip

Providing a kit comprising a;

(B) applying an anti-aging cosmetic to the skin;

(C) placing the adhesive surface of the strip on the skin treated with cosmetics in step (B);

(D) removing the strip and placing it in at least one dark area of the substrate; And

(E) subsequently repeating steps (C) and (D) and then comparing the pattern resulting from the application of the first and second strips to the skin

It includes.

Additional advantages, features and advantages of the present invention will become more readily apparent from a review of the drawings:

1 is a first embodiment of an application strip according to the present invention;

2 is a second embodiment of an application strip according to the present invention;

FIG. 3 is an application strip of the embodiment shown in FIG. 1 positioned on the skin and detached therefrom and mounted on a dark card reader.

A simple diagnostic test has now been identified to allow consumers to assess the claimed effectiveness of anti-aging cosmetics. The effectiveness of anti-aging results can be investigated over a period of time via a cheap kit. The kit uses a transparent plastic strip coated with a transparent adhesive layer. When applied to areas that tend to wrinkle on the face or body, the adhesive layer receives morphological wrinkle marks. The strip can be removed from the wrinkled area and then imaged on a dark, preferably black, area.

1 shows a transparent strip 2 adhesively attached to the release pedestal 4. The strip 2 is in the form of a kidney, which is located around the right or left eye to cover the orbital bone (crow's foot). This curved shape allows the eye to cover as much as possible around the outer edge of the eye.

A handle 6 is attached to the strip 2. The handle is made of a catchable structure. Separation of the strip from the release pedestal is facilitated by starting removal from the handle. In contrast to the transparency of the strip, the opacity of the handle, preferably the black color, indicates to the user the difference in the area and instructs the user to start peeling off at the point.

2 shows a second embodiment of a more elongated double torn leaf shape. The strip 2 'is removably attached on the release pedestal 4'. The handle 6 'is placed between the two leaf shapes of the strip and lies along the axis of symmetry bisecting the strip. The more elongated nature of this embodiment than the first embodiment ensures that the eyebrow hair does not get caught under the adhesive during application. It is undesirable to attach to the hair. Any hair stuck to the adhesive can cause pain as the strip is removed. This is considered an undesirable wound factor.

In a method for testing the efficacy of various anti-aging articles, the strip is removed from its release pedestal. It is then placed along the area of the skin to image the shape of the skin. The face area, more specifically the area around the eyes, will be evaluated first. Next, the strip is removed and placed on the image card 8. The dark, preferably black, background of the card holds the mark while the transparent strip makes the mark visible. 3 shows that a strip showing fine lines and wrinkles 10 is observed in contrast to the black background of the image card.

Following basic analysis of fine lines and wrinkles, treatment with the selected anti-aging cosmetics is started. Treatment continues for a time sufficient for the cosmetics to treat the symptoms of aging.

The second image area is located adjacent to the first. After the treatment period, such as four weeks, another mark is obtained by the second transparent strip 21. If the cosmetics function properly, fewer fine lines and wrinkles 11 will appear on the second area imaged. This process can then be repeated at six or eight weeks or longer time intervals. Each test will use new strips and new blackened areas on the same or different image cards.

In a preferred embodiment, the kit comprises a spreading device. Most preferred are sparse papers formed from cellulosic materials that support the water-dispersible titanium dioxide inherent therein. The device is commercially available from Reading Plus International, Taiwan. Before applying the transparent adhesive strip, the target area of the face is wiped with spray paper. Powdered titanium dioxide is deposited on it as an even film. Contact with the adhesive strip then allows the adhesive strip to preferentially attach the deposited powder along the ridges of the fine lines and wrinkles. This gives an image in the form of a powder of fine lines and wrinkles. Paper delivery systems as described above are also preferred, but the spreading powder may also be delivered from a shaker container similar to a container for dispensing cosmetic powder.

The strip for use in the present invention may be a transparent product that allows observation of any pattern on the lower surface. Suitable materials for the strip are various plastics or celluloses that can be formed into transparent films. Typically the plastic can be selected from polyethylene, polypropylene, polystyrene, polyesters, polycarbonates, polyacrylates, polyvinyl chloride, polyvinyl alcohol and polybutene. Homopolymers as well as copolymers may be used as the strip material. Copolymers can be formed from monomers such as C ₂ -C ₁₀ olefins, vinyl chloride, acrylates and styrene through free-radical polymerization. Condensed plastics can also be used in the form of copolymers wherein the monomers are selected from C ₂ -C ₁₀ dicarboxylic acids, C ₂ -C ₁₀ polyols, C ₂ -C ₆ alkoxylates and combinations thereof Can be. Polyethylene, polypropylene and polyester terephthalate are the preferred plastic materials for forming the strips.

The thickness of the strip may be in the range of 0.001 to 2 mm, preferably 0.01 to 1 mm, more preferably 0.1 to 0.5 mm and optimally 0.5 to 0.8 mm.

Pedestals are typically manufactured using certain materials in a manner that is generally unaffected by the adhesive. The pedestal may be elastic or inelastic, but is preferably elastic. Flexibility makes it easier to tear off the adhesive strip. The pedestal can be formed from a variety of materials including organic polymers and cellulosic materials. A release coating, such as silicone, may be placed on the top surface of the pedestal to easily remove adjacent adhesive strips.

The adhesive will preferably be in pressure-sensitive form as a layer having an average thickness of 0.01 mm to 3 mm, preferably 0.05 mm to 2 mm, more preferably 0.1 mm to 1 mm, optimally 0.4 mm to 0.8 mm.

Pressure sensitive adhesives suitable for use in the present invention are coatable adhesives. A wide variety of coatable pressure sensitive adhesives can be used, such as solvent coatability, hot melt coatability, as well as latex PSA's coatable in addition to water. In addition, adhesives curable without solvent (often referred to as 100% solids) may be used. If thicker adhesive coatings are desired, it may be desirable to perform a hot melt coating, which is a layer of adhesive, or photopolymerize the adhesive in place. Specific examples of pressure sensitive adhesives include acrylates such as isooctyl acrylate / acrylic acid copolymer, tack enhanced acrylate, and plasticizer-containing acrylates such as those disclosed in US Pat. No. 4,946,742 (Landin); Thermoplastic rubbers and elastomers, as well as thermoset rubbers, such as nitrile rubbers (eg, acrylonitrile-butadiene), styrene-butadiene, styrene-isoprene, styrene-butadiene-styrene, styrene-isoprene-styrene, and natural rubber Comprising, natural or synthetic rubber resins; Silicone-based adhesives, such as polysiloxanes; Polyolefins; Polyester; Polyamides; And polyurethanes.

Acrylic type pressure sensitive adhesives are particularly preferred. Most particularly pressure sensitive adhesives with low tack values. The materials are sold under the trade name Flexcon®.

The relative thickness of the strip to the adhesive may range from 1: 200 to 200: 1, preferably 1:10 to 10: 1, optimally 2: 1 to 1: 2. The relative weight ratio of the strip to the adhesive may range from 1: 200 to 200: 1, preferably 1:10 to 10: 1, optimally 2: 1 to 1: 2.

The anti-aging cosmetics of the present invention may contain one or more anti-aging active ingredients and cosmetic carriers. Exemplary active ingredients include alpha- and beta-hydroxy acids, retinoids (eg retinol and retinyl palmitate), ascorbic acids and derivatives (eg ascorbyl tetraisopalmitate, magnesium ascorbyl) Phosphates), lipoic acid, green tea, tocophenols and derivatives, dihydroepiandrosterone (DHEA) and combinations thereof. The amount can range from 0.00001 to 10% by weight of the cosmetic. Carriers may include water, silicones, natural and synthetic esters (eg, triglycerides, lanolin and fatty acid esters), hydrocarbons, propellants, thickeners, surfactants, and combinations thereof. The amount can range from 5 to 99.9% by weight of the cosmetic.

Anti-aging cosmetics can take various forms including creams, lotions, wipes, aerosols, powders and transdermal patches.

Except for the working examples and the comparative examples, or where otherwise explicitly indicated, all numbers herein that represent amounts of substances are to be understood as modified by the word "about."

The term "comprising" means not limited to the elements described arbitrarily below, but encompasses unspecified elements of functional significance that are not major or relatively important. In other words, it is not necessary to enumerate the steps, components or options listed. Wherever the term "including" or "having" is used, the terms mean equivalent to "comprising" as defined above.

All parts, percentages, and ratios mentioned in this specification and the appended claims are by weight unless otherwise indicated.

The present invention provides a simple, low cost test that allows consumers to self-evaluate the anti-aging benefits of cosmetics over a long period of time.

The present invention also provides a low cost simple self-assessment tool for measuring changes in fine lines and wrinkles on the face or in other aging parts of human skin.

1 is a first embodiment of an application strip according to the present invention.

2 is a second embodiment of an application strip according to the present invention.

FIG. 3 is an application strip of the embodiment shown in FIG. 1 positioned on the skin and detached therefrom and mounted on a dark card reader.

Claims (7)

(i) a transparent strip provided on one surface with an adhesive sufficient to maintain a mark of fine lines and wrinkles after peeling the strip from the skin; (ii) an imaging substrate having at least one dark area for receiving a transparent strip; And (iii) the adhesive surface of the strip is placed in the skin area in need of measurement, the strip is removed and placed in the dark area of the substrate, the above-mentioned process is subsequently repeated and the application of the first and second strips to the skin Description in the kit instructing the consumer to compare the pattern generated from the Including, a test kit for observing fine lines and wrinkles on the skin of a person. The kit of claim 1 wherein the adhesive is a pressure sensitive adhesive. The kit of claim 2 wherein the adhesive is an acrylate polymer. (i) a transparent strip provided on one surface with an adhesive sufficient to maintain the marks of fine lines and wrinkles after peeling the strip from the skin; And (ii) an imaging substrate having at least one dark area for receiving a transparent strip Comprising a kit for evaluating the efficacy of the anti-aging cosmetics. The kit of claim 4, further comprising a spray powder for applying to the skin prior to placing the adhesive surface of the strip on the skin. 6. The kit of claim 5, wherein the spraying powder is transferred to the skin on paper. 6. The kit of claim 5, wherein the spraying powder is water dispersible titanium dioxide.