JP2003199619A - Sheet for makeup - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet for makeup which is easily applicable to other body areas as well in addition to desired body areas and can decrease industrial wastes and make a contribution to ecology by full and good use of the remaining pieces of products. <P>SOLUTION: The sheet 1 for makeup is rupturable with fingertips in any directions and has water holding properties. This sheet for makeup is formed with sheet sections 2 for disconnection encircled by notches 3 for disconnection drawing closed loops. Both of the sheet sections for disconnection and the remaining sheet sections 5 are applied for attachment to the skin. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a cosmetic sheet.

[0002]

2. Description of the Related Art Conventionally, a cosmetic sheet used in a pack for conditioning the skin is commercially available as a molded product which is preliminarily die-molded into a predetermined shape according to the place where the pack is carried out. For example, a face mask that covers the entire face has openings for the eyes and mouth, and is commercially available as a face mask having a size that covers the entire face and has a notch in the periphery.
Also, as a pack sheet for the treatment of the portion under the eyes, a crescent-shaped punched sheet is commercially available. However, consumers often want to carry out skin care not only under the eyes but also at various places such as the corners of the eyes, the chin, the nose, etc., and not only products molded into a predetermined shape. There was nothing satisfactory.

Further, the human face and the like have different concave and convex shapes, widths, etc., and commercially available products do not fit all people well, and there is a problem in fitability, which is inconvenient. . For example, the positions of eyes and nose are different depending on the person, and a face mask on the market often does not fit in a proper place.

On the other hand, for the producer, the remaining sheet pieces other than the portion used for the die-molding cannot be diverted to other products and are discarded as industrial waste, which increases the industrial waste. , Which was contrary to ecology and led to higher costs.

[0005]

In view of the above-mentioned problems, the object of the present invention is to meet various needs of customers and to be applied not only to a desired body part but also to other body parts easily. Moreover, it is to provide a cosmetic sheet that can reduce industrial waste by making full use of the remaining pieces of the product and contribute to ecology.

[0006]

The present invention provides 0.01-
A cosmetic sheet comprising a water-absorbent sheet having a low density of 0.1 g / cm ³ and a water retention rate of 500% or more,
The cosmetic sheet is rupturable with a fingertip in any direction, and the cosmetic sheet has a separating sheet portion surrounded by a separating cut drawing a closed loop,
The above object was achieved by a cosmetic sheet characterized in that both the separating sheet portion and the remaining sheet portion are provided for skin application.

The cosmetic sheet of the present invention is particularly preferably a water absorbent sheet produced by freeze-drying. Cellulose sponge can also be preferably used in the cosmetic sheet of the present invention.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The sheet material used for the cosmetic sheet of the present invention has a low density of 0.01 to 0.1 g / cm ³ and a water retention rate of 500% or more. Density is 0.0
If the sheet material of less than 1 g / cm ³ is used, the water absorption rate and the water retention rate are increased, but the practical strength is reduced, and the sheet becomes too brittle to be used as a cosmetic sheet. The product (cosmetic sheet) is easily damaged.
On the other hand, when a sheet material having a density of more than 0.1 g / cm ³ is used, the water absorption rate and the water retention rate are lowered, and it becomes difficult to contain a cosmetic solution or the like in the makeup pack.

The water absorption rate of the present invention is defined by the following equation: {(W2-W1) / W1} × 100% where W1 is the weight of the sample in a dry state and W2 is the above sample. It is put into a container, immersed in a water depth of 10 cm for 2 minutes, and then the basket is pulled up, and after that, the basket is held as it is for 1 minute, and then the weight is measured.

The water absorption rate indicates the capacity which the cosmetic sheet can naturally absorb when the cosmetic sheet comes into contact with water. When this value is high, a large amount of cosmetic liquid or the like can be taken into the cosmetic sheet. In the present invention, the water absorption rate is preferably 1,0
It is at least 00%, more preferably at least 1,500%.

The water retention rate of the present invention is the water content after the pressure is applied, and is defined by the following equation: {(W3-W1) / W1} × 100% where W1 is the drying of a 5 cm square sample. State weight, W3
Is placed in a basket, immersed in a water depth of 10 cm for 2 minutes, and then pulled out of the basket, and after holding it for 1 minute, place the sample on a filter paper and put it on it.
A glass plate is placed, and the weight combined with the glass plate is 250.
A weight is placed on a glass plate so that the weight becomes g, a load is applied and the weight is held for 1 minute, and then the weight is weighed.

The water retention rate is the water taken in the cosmetic sheet,
It shows the characteristic that it keeps holding even when an external force is applied. Water retention is necessary because the cosmetic sheet of the present invention is used in a state of being impregnated with a liquid such as a cosmetic liquid. If this value is high, the cosmetic liquid will not easily exude even when it is pressed by hand during packing during makeup. In the present invention, the water retention rate is 500% or more, preferably 900% or more. If the water retention rate is less than 500%, the cosmetic solution easily exudes during packing, and a sufficient skin care effect cannot be obtained.

The cosmetic sheet of the present invention has water absorbency and water retention and is easily broken. This fragility is like tearing easily with your fingertips without using scissors or tools, and the tearing direction is like breaking in any direction.

In order to be rupturable in any direction, a low density sheet having small anisotropy and small breaking strength is used. From the viewpoint of easiness of breaking, the tensile strength of the sheet is preferably 1 N / mm ² or less, more preferably 0.8
N / mm ² or less. If the tensile elongation is large, it is difficult to break and it is difficult to break into a desired shape. Therefore, the tensile elongation in the dry state is preferably 15% or less, and more preferably 10% or less. In particular, a sheet produced by freeze-drying is suitable because it is easy to break in any direction, has a large liquid absorption amount, and has good water retention.

As a material constituting the cosmetic sheet of the present invention, various polymer compounds such as polyvinyl alcohol, cellulose, alginic acid derivatives, polysaccharides such as chitosan and mannose, proteins such as collagen and sericin can be used. . These polymer compounds may be homopolymers or arbitrary copolymers. Alternatively, a polymer blend may be used. Particularly, from the viewpoint of compatibility with skin and safety, polymer compounds derived from natural products are preferable.

When a synthetic polymer is used for the sheet material, a hydrophilic polymer is preferable from the viewpoint of water absorption, and a naturally-derived polymer having hydrophilicity is more preferable.

High molecular compounds derived from natural products such as collagen, gelatin, mannans (konjac components), chitosan, cellulose pulp and sericin are dissolved or swollen raw materials, or formed into a sheet in a slurry state, which is freeze-dried. By doing so, the cavity is opened and a low density sheet can be obtained.

The low-density sheet made of such a high molecular compound derived from a natural product has a large water-retaining power and is therefore particularly suitable as the cosmetic sheet of the present invention. Particularly, the low-density sheet produced by freeze-drying is suitable as the cosmetic sheet of the present invention. Cellulose sponge can also be preferably used in the cosmetic sheet of the present invention.

The cosmetic sheet of the present invention has a tensile strength such that it can be easily broken with fingers, and
The tensile strength should be almost the same in each direction so that it can be easily broken with a finger in either direction. On the other hand, in order to attach the sheet to the skin in a wet state, the sheet must be strong enough not to be easily torn even in a wet state in order to prevent the sheet from tearing when spread or attached.

In order to control the tensile strength and the like of the cosmetic sheet, the thickness and length of the fibers constituting the pulp are appropriately selected, and the size and distribution of the holes in the low density sheet are controlled. In the case of producing a sheet by freeze-drying, the tensile strength and the like can be controlled by adjusting the amount of water injected to the raw material, adjusting the freezing time, freezing temperature, degassing pressure and time, and the like. Further, if necessary, a fiber component may be contained for reinforcement during the production of the sheet.

The cosmetic sheet of the present invention can be designed to have any size and thickness, but the thickness is preferably about 0.3 mm to 2 mm in terms of handleability and water retention.

In the cosmetic sheet of the present invention, parts of the body to be used, for example, parts of the face such as the lower part of the eyes, nose, cheeks, and forehead, and other parts of the body such as the neck, lower armpits, arms and legs A shape suitable for being attached to the skin at an arbitrary site is drawn in a closed loop shape by a cutting notch.

The portion surrounded by the closed loop (separating sheet portion) has a shape suitable for the target portion as described above, and if the portion is cut at the cutting slit, it is attached to the target portion. be able to.

The notch for separating means, for example, one in which the notch is made in a discontinuous state (perforation). Most of the lines that form a closed loop along the desired shape are cut out by a method such as punching, and part of the cut is a joint that is connected in a dotted or short linear shape. It means a thing or a thing in which the cuts are discontinuous in a dotted line or a one-dot chain line. Furthermore, with a V-shaped cross-section blade (Thomson blade),
You may make a V-shaped cut | interruption leaving a part of thickness of the cosmetic sheet in a cross-sectional state along the line which draws a closed loop.
In this case, it is preferable that a part of the closed loop is punched out over the entire thickness to facilitate the separation of the separation sheet portion.

In the case where such a notch for separating is made, the separating sheet portion surrounded by the closed loop can be easily separated by hand without using scissors or the like. In the present invention, one cosmetic sheet may include one molding part surrounded by such a closed loop or two or more molding parts.

The cosmetic sheet of the present invention may be in a dry state in the form of a product or in a wet state containing various cosmetic liquids. In the case of a dry sheet, apply an appropriate cosmetic liquid etc. at the time of use and then apply it to the skin. To make it wet, any method such as immersing the cosmetic sheet in a cosmetic liquid or spraying the cosmetic liquid can be used. Liquids for makeup include lotion and beauty essence.
The liquid state is a solution, emulsion, emulsion, lotion or the like, and is not particularly limited. If necessary, skin cosmetics may contain components effective for the skin such as vitamins, whitening agents and moisturizers.

The cosmetic sheet of the present invention is used as follows. That is, a product dried in a product state is impregnated with a desired liquid such as a lotion to obtain a wet state after the part surrounded by the closed loop is cut or before the part is cut. Use the pre-moistened product as is. In either case, the separating sheet portion surrounded by the closed loop having a desired shape is separated with a fingertip. Then, the separating sheet portion in the wet state is
It is attached to the desired body part, for example, under the eyes.

After attaching the separating sheet portion to a predetermined body place, the remaining sheet portion may be immediately attached to another body place for use, or may be stored as it is for a while and the remaining sheet portion may be used at another occasion. Parts can also be used. In this case, the remaining sheet portion can be cut into pieces with a finger and used in a size corresponding to the intended portion to be attached. For example, make the size suitable for the eyes, or make it suitable for sticking to the nose,
In addition, it can be attached to the part where the skin condition is concerned. Further, in this case, if the product to be sold is in a dry state, it can be applied after impregnating a cosmetic solution suitable for the site. For example, around the nose, etc., are impregnated with a lotion containing a component that has the effect of tightening the skin and applied, or when it is applied to the corner of the eye, a lotion containing a highly moisturizing component is impregnated. Or, it may be attached after the cosmetic sheet is made to include a part suitable for each use site. In the case of the originally wet state, the remaining sheet portion may be cut and attached to each part of the face or the like depending on the cosmetic solution kept in the wet state.

The cosmetic sheet of the present invention is particularly useful as a sheet for packs as a sheet material having a high water absorption rate and a high water retention rate, but is also used as a wet product impregnated with various lotions for whitening, cleansing, etc. it can.

[0030]

EXAMPLES Next, the present invention will be described in more detail by way of examples. [Example 1] As a low-density sheet 1, a freeze-dried sheet of cellulose pulp sliced to a thickness of 1 mm (density 0.0
3g / cm ³ ) as a sheet with a size of 7cm × 10cm,
This sheet was cut using a Thomson blade along a closed loop in a broken line shape to manufacture a cosmetic sheet in which two separating sheet members 2 could be taken as shown in FIG.

The joint portion 4 was manually cut off along the broken line portion 3 of this cosmetic sheet to obtain two sheet members. When a commercially available lotion was sprayed onto this and then applied to the left and right eyes, the sheet member had a high fit.

Further, after the residual piece 5 was broken into about two equal parts, a chemical solution having a bactericidal action was sprayed on the pieces, and the pieces were attached to the appearance parts of the pimples on both cheeks. It fits well and was able to effectively carry out skin treatments. As described above, the skin treatment was easily performed on the sheet member and the remaining piece, and one product could be effectively used.

Example 2 Low-density sheet 1 (density 0.04 g) made of a chitosan composition and produced by freeze-drying
/ Cm ³ , thickness 0.7 mm, size 5 cm x 7 cm) is cut with a Thomson blade along a closed loop into a broken line shape, and as shown in FIG. Sheet was manufactured.

The joint portion 4 was manually cut off along the broken line portion 3 of the cosmetic sheet 1 to obtain one sheet member 2. After spraying the lotion onto it, it was applied under the left and right eyes, and the fit was high.

Further, after spraying another lotion on the remaining piece 5 broken to an appropriate size with fingers, it was attached to the appearance part of the pimples on both cheeks. Fit well.

In the cosmetic sheets of Examples 1 and 2, both the separated sheet member and the remaining pieces can be easily ruptured with fingers, so that skin treatment can be easily performed even at the destination, and the product can be effectively used. It was Also,
Since this cosmetic sheet has good water retention, it was able to retain lotion for a long time, and the pack also had a high moisturizing effect on the skin.

[0037]

[Table 1] Table 1 above compares the performance of the cosmetic sheet of the present invention used in Examples 1 and 2 with the nonwoven fabric obtained by entanglement of rayon filaments used in a conventional face mask with a water jet.

The size of the sample in measuring the water absorption rate and the water retention rate is 5 cm × 5 cm. The water absorption rate was evaluated as follows. The dry weight W1 of the sample is measured. Place the sample in a basket, dip it for 10 minutes at a water depth of 10 cm, and pull up the basket. After that, the sample is held for 1 minute as it is and then weighed to measure the weight W2. The water absorption rate after immersion in water is as follows.

{(W2-W1) / W1} * 100% Next, the water retention rate under pressure is measured. As the pressure application condition, the above sample (5 cm square) was placed on a filter paper, and a glass plate and a weight were placed thereon. The combined weight of the glass plate and the weight is set to 250 g, a load is applied and held for 1 minute, and then weighed to measure the weight W3. The water retention rate after applying pressure is as follows.

{(W3-W1) / W1} × 100% The size of the sample for measuring the tensile strength is 70 mm in length (the length of the pulled portion is 40 mm) and 15 mm in width. Two types of sheets are prepared, one of which is long in the vertical direction (one direction) and the other of which is long in the horizontal direction (direction perpendicular to the direction). The tensile conditions were such that the sample was pulled in the longitudinal direction at a pulling rate of 30 mm / min. In addition, as the sample of the wet product, the sample immediately after absorbing the water was used. In Table 1, the unit of tensile strength is N / mm ² ,
“Horizontal” indicates the measured values of the sample in the vertical direction and the sample in the horizontal direction.

As can be seen from Table 1, the low density sheet made of chitosan or cellulose pulp has a high water retention rate and an extremely high water retention performance even when pressure is applied (even when pressure is applied, immediately after immersion). About half is retained). Such a property is particularly preferable as a pack sheet. In other words, when packing, the cosmetic sheet can be made to contain plenty of cosmetic liquid, and moreover, when applying the cosmetic sheet to the face, etc., be sure to gently press it from above the sheet to familiarize it with the skin. I do the work, but the cosmetic solution does not drip even if I do such work. Furthermore,
Since it has a water-retaining power and does not dry immediately, it can be packed for a long time and the components of the cosmetic solution can be sufficiently applied to the skin. From such a viewpoint, the cosmetic sheet of the present invention (particularly a porous sheet containing chitosan or cellulose pulp as a main component) has a water retention rate of 900% after application of pressure.
The above is preferable.

Furthermore, a low-density sheet made of freeze-dried and made of chitosan or cellulose pulp is easy to tear in a dry state. This has a tensile strength of 1 N / mm ² in a dry state.
It is derived from the characteristic that it is as low as or less and the elongation is 10% or less.

The freeze-dried low-density sheet made of chitosan or cellulose pulp has almost the same tensile strength in the longitudinal direction and the transverse direction, and little anisotropy. Therefore, even when tearing with a finger, it can be torn in the direction desired by the user, so that the desired shape suitable for the location where the cosmetic sheet is attached can be obtained.

A low-density sheet made of chitosan or cellulose pulp has a low tensile strength when wet (less than half that when dry), but has a higher tensile elongation than when dry, so it should be attached to an uneven surface of the face. Also has good followability, and can be fitted to the skin at a desired site without breaking.

In comparison with this, the conventional nonwoven fabric for face masks has different tensile strengths in the longitudinal direction and the transverse direction. That is, there is anisotropy. Moreover, since the tensile strength is large and the tensile elongation is large both in the dry state and the wet state,
Even if you try to break it with your finger, the sheet stretches and it is difficult to break. Even if it can be broken by pulling it strongly, it cannot be shredded in a desired direction because it has a directional tendency to break.

[0046]

EFFECTS OF THE INVENTION According to the present invention, the cosmetic sheet can be easily broken with the fingertips, and has a closed loop shape corresponding to the shape of the desired target site. Therefore, the object surrounded by the closed loop can be easily separated, and the cosmetic sheet can be attached to the target site.

Moreover, since the remaining portion of the cosmetic sheet of the present invention can be easily broken by hand, it can be attached to other parts of the body, and the cosmetic sheet product can be completely used up without waste. be able to.

In particular, even if the type of cosmetic liquid used varies depending on the intended site, if the cosmetic sheet of the present invention is manufactured into a dry state, different cosmetic liquids are produced at the intended sites. The separated sheet member and the remaining pieces can be impregnated, and a pack can be applied according to various needs.

Even if the three-dimensional shape of the face or other body parts varies depending on each user of the cosmetic sheet of the present invention, the residual piece of the present invention has an appropriate shape for each individual. Since it can be broken, it has excellent fit.

When the cosmetic sheet of the present invention is a low-density sheet made of a polymer derived from a natural product such as chitosan or cellulose and produced by a freeze-drying method, the water-holding property and the easiness of breaking with fingers can be obtained. From the viewpoint of, it is particularly preferable.

Further, according to the present invention, not only for the face,
It can also be used as skin care for other parts of the body, and in particular, the remaining part outside the closed loop makes it easy to care for the skin of the body parts such as hands, legs and armpits.

According to the invention, in terms of the production process,
It has the effect of matching the ecology without the problem of industrial waste caused by the residual pieces associated with die-cut molding, and reducing costs by eliminating losses.

[Brief description of drawings]

FIG. 1 is a plan view of a first embodiment of a cosmetic sheet of the present invention.

FIG. 2 is a plan view of a second embodiment of the cosmetic sheet of the present invention.

[Explanation of symbols]

1 Cosmetic sheet body 2 Separation sheet 3 Notch for separation 4 joints 5 Residual sheet

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kenji Nakamura             6-341, Nishi-Awaji, Higashiyodogawa-ku, Osaka-shi, Osaka             No.Taiki Awaji Factory Co., Ltd. (72) Inventor Koji Nakamura             6-341, Nishi-Awaji, Higashiyodogawa-ku, Osaka-shi, Osaka             No.Taiki Awaji Factory Co., Ltd. (72) Inventor Koji Aihara             6-341, Nishi-Awaji, Higashiyodogawa-ku, Osaka-shi, Osaka             No.Taiki Awaji Factory Co., Ltd.

Claims (2)

[Claims] 1. A cosmetic sheet comprising a water-absorbent sheet having a low density of 0.01 to 0.1 g / cm ³ and a water retention rate of 500% or more. Is also rupturable with a fingertip, and the cosmetic sheet is formed with a separating sheet portion surrounded by a separating notch forming a closed loop. Both the separating sheet portion and the remaining sheet portion are attached to the skin. A cosmetic sheet characterized by being used for a purpose. 2. The cosmetic sheet according to claim 1, wherein the cosmetic sheet is a water-absorbent sheet produced by freeze-drying.