JP2001019633A - Body cleaning sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject sheet by designing itself to have an oily matter- absorbing area and an aqueous cleaning liquid-impregnated area to ensure oily stains such as sebum and aqueous stains such as sweat and saline to be removed easily from the human body (the skin and/or hair). SOLUTION: This body cleaning sheet has (A) an oily matter-absorbing area and (B) an aqueous cleaning liquid-impregnated area; wherein it is optional that the areas A and B represent the surface and reverse face, respectively, or represent the identical side (surface or reverse face); for example, this sheet has such a structure that one side of an oily matter-absorbing dry sheet 1 as the area A is laminated with an aqueous cleaning liquid-impregnated wet sheet 2 as the area B; the dry sheet 1 to be used is e.g. a film sheet made from a lipophilic thermoplastic resin, nonwoven fabric sheet, woven fabric sheet, while a liquid-holding sheet usable in the aqueous cleaning liquid-impregnated sheet 2 is e.g. a woven fabric or nonwoven fabric of natural or synthetic fibers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a body cleaning sheet for easily cleaning skin and hair to which oily stains such as sebum and water-based stains such as sweat and salts are adhered. In particular, the present invention relates to a body cleaning sheet that can easily clean skin and hair without breaking makeup such as a foundation.

[0002]

2. Description of the Related Art In recent years, skin cleaning sheets for removing dirt adhering to hair, skin, especially the face have been marketed. Such a skin cleaning sheet is mainly composed of an oily substance-absorbing dry sheet that removes oily stains such as sebum,
It is broadly classified into an aqueous cleaning liquid impregnated wet sheet that mainly removes aqueous dirt such as sweat and salts.

[0003] As a general oily substance-absorbing dry sheet, a sheet obtained by making a fiber material such as natural pulp, mulberry, mitsumata, hemp and the like is thinned by a calendering method or the like, A soft plastic film having micropores may be used. Such a dry sheet can absorb and remove oily stains, such as sebum and makeup loss, which have emerged on the makeup surface such as a foundation without breaking the makeup, and thus can prevent shine and makeup loss.

[0004] As a general wet sheet impregnated with an aqueous cleaning liquid, a non-woven fabric of hydrophilic fibers is impregnated with an aqueous lotion, and if necessary, a powder which gives the skin a smooth feeling is applied on the front or back surface of the sheet. Attached wet sheets are known. Such a wet sheet can remove water-based stains such as sweat and salts emerging from the makeup surface such as a foundation without disturbing the makeup, and can give the user a refreshing feeling as if the face was washed. .

[0005]

However, in the case of the above-mentioned oily substance-absorbing dry sheet, there was a problem that it was not possible to remove aqueous stains such as sweat and salts and water-soluble proteins contained therein. On the other hand, in the case of the wet sheet impregnated with the aqueous cleaning liquid as described above, there is a problem that oily stains cannot be sufficiently removed, and that shine and makeup loss cannot be sufficiently prevented.

An object of the present invention is to make it possible to easily remove oily dirt such as sebum and aqueous dirt such as sweat and salt from the body (skin and hair).

[0007]

Means for Solving the Problems The present inventors have made in one sheet material an oily substance absorbing area for absorbing and removing oily dirt and an aqueous cleaning liquid impregnated area for wiping off or absorbing and removing aqueous dirt. The present inventors have found that the above objects can be achieved by incorporating the above, and have completed the present invention.

[0008] That is, the present invention provides a body cleaning sheet having an oily substance absorbing area and an aqueous cleaning liquid impregnated area. In this case, the oily substance absorbing region may constitute the front surface, the aqueous cleaning liquid impregnated region may constitute the back surface, or the oily substance absorbing region and the aqueous cleaning liquid impregnated region may constitute the same surface.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the body cleaning sheet of the present invention will be described with reference to the drawings.

The body cleaning sheet shown in FIG. 1 has an oily substance absorbing dry sheet 1 which is an oily substance absorbing area, and an aqueous cleaning liquid impregnated wet sheet 2 which is an aqueous cleaning liquid impregnated area.
Are laminated. In this case, as shown in FIG. 2, the oily substance-absorbing dry sheet 1 may be laminated on one half of the aqueous cleaning liquid-impregnated wet sheet 2, and the oily substance-absorbing dry sheet 1 may be laminated on the other half. Further, the oily substance-absorbing dry sheet 1 and the aqueous cleaning liquid-impregnated wet sheet 2 may constitute at least a part of one surface of the body cleaning sheet, and as shown in FIGS. 3 (a) to 3 (c), Functional layers A other than the oily substance-absorbing dry sheet 1 and the aqueous cleaning liquid impregnated wet sheet 2 (for example, a foundation-containing layer, a perfume-containing layer, a puff layer, and a handle based on woven fabric, nonwoven fabric, sponge, brush, paper, or the like) Layer) may be combined with a part of the front surface or the back surface, or with each part of the front surface and the back surface. Thereby, various functions can be provided to the body cleaning sheet depending on the type of the functional layer A. When a wipe function layer composed of, for example, a nonwoven fabric layer is combined as the functional layer A, the dirt-cleaning power of the body cleaning sheet can be further improved. Further, it is possible to prevent the dirt removed by the body cleaning sheet from re-adhering to the hand.

In these embodiments, between the oily substance absorbing dry sheet 1 and the aqueous cleaning liquid impregnated wet sheet 2,
Liquid-permeable sheets 3 as shown in FIG. 4 may be laminated.

In the body cleaning sheet shown in FIG. 5, an oily substance-absorbing dry sheet 1 as an oily substance-absorbing area and an aqueous cleaning liquid-impregnated wet sheet 2 as an aqueous cleaning liquid-impregnating area constitute the same surface. It has a laterally connected structure. Further, a vertical stripe structure may be used as shown in FIG. 6, or a staggered structure may be used as shown in FIG. In addition, in the case of the embodiments of FIGS. 5 to 7, a base sheet may be laminated (not shown) in order to improve the handleability.

In the present invention, the oily substance-absorbing dry sheet 1 may be a film sheet, a nonwoven sheet or a woven sheet formed of a lipophilic thermoplastic resin.

Examples of the thermoplastic resin include polyolefin resins such as polyethylene and polypropylene; polyester resins such as polyethylene terephthalate and polybutylene terephthalate; polyvinyl chloride resins; polyamide resins such as nylon; and polyethyl acrylate. And the like. Polyacrylic resins such as, for example, polyurethane resins, cellulose resins, and polylactic acid resins. Further, additives can be appropriately added to these thermoplastic resins for the purpose of improving lipophilicity and improving softness.
Examples of such additives include liquid rubber such as butadiene oligomer and isoprene oligomer, petroleum resin, coumarone resin, chlorinated paraffin, silicone oil, liquid paraffin, and polyethylene wax.

Further, the oily substance-absorbing dry sheet 1 includes:
Preferably, a large number of micropores are formed in order to increase the absorption surface area of the oily soil. As a method of forming a large number of micropores in the oily substance-absorbing dry sheet 1, (i) a mixture obtained by dispersing inorganic fine particles such as clay, calcium carbonate, and barium sulfate in a thermoplastic resin is formed into a film by extrusion molding. A method in which micropores are formed in the vicinity of inorganic fine particles by subjecting the obtained film to uniaxial or biaxial stretching, (ii) a high-temperature high-pressure air flow is applied to an outlet of a spinning nozzle when a thermoplastic resin is melt-spun. The fibers immediately after spinning are drawn and spread to form ultrafine fibers, and the ultrafine fibers are collected on a collecting conveyor to form a sheet, which is then thinned by hot embossing, calendering, etc. And the like. The sheet having these pores may be colored for the purpose of enhancing the absorption of oily stains such as sebum.

The thickness of the oily substance-absorbing dry sheet 1 is 1
It is 0 to 300 μm, preferably 20 to 200 μm.

As the aqueous cleaning liquid impregnated wet sheet 2, a liquid holding sheet capable of holding an aqueous cleaning liquid is held with an aqueous cleaning liquid capable of removing aqueous dirt. Here, the degree of holding of the aqueous cleaning liquid is preferably 100 to 500% by weight based on the liquid holding sheet.

The liquid-retaining sheet that can be used for the aqueous cleaning liquid-impregnated wet sheet 2 used in the present invention is not particularly limited, and for example, any of a woven or nonwoven fabric of natural fibers or synthetic fibers can be used. . Specifically, rayon, acetate, acrylic, polyester,
Examples include a woven or nonwoven fabric made of polyethylene, polypropylene, polyurethane, polyamide, cotton, or a fiber obtained by blending two or more of these, a wet or dry pulp sheet, and the like. Among them, a sheet made of hydrophilic fibers containing at least 20% by weight of cellulosic fibers can be preferably used from the viewpoint of good aqueous cleaning liquid retention.

As the aqueous cleaning liquid used in the aqueous cleaning liquid impregnated wet sheet 2, known lotions, washing liquids, emulsions and the like can be used.

The thickness of the wet sheet 2 impregnated with the aqueous cleaning liquid is 100 μm to 5 mm, preferably 500 μm to 1 m.
m.

In the present invention, as the liquid impermeable sheet 3, the oily dirt absorbed by the oily substance-absorbing dry sheet 1 is not moved to the aqueous cleaning liquid impregnated wet sheet 2 side, and It is composed of a sheet in which the contained aqueous cleaning liquid is not moved to the oily substance-absorbing dry sheet 1 side. Examples of such a sheet include a polyethylene sheet, a polypropylene sheet, a polyethylene terephthalate sheet, an ethylene / vinyl acetate copolymer sheet, and the like.

The front or back surface of the body cleaning sheet of the present invention preferably contains an insoluble powder as necessary. As a result, a smooth feeling can be imparted to the skin, and the user can feel refreshed as if washing the face.

As the insoluble powder, an aqueous cleaning liquid impregnated in the aqueous cleaning liquid impregnated wet sheet 2 and various powders insoluble in oily dirt and aqueous dirt on the skin surface can be used. For example, silica, alumina, talc, kaolin, mica,
Inorganic powders such as titanium mica, zeolite, gunzhou, zinc white, iron oxide, etc., and organic powders such as nylon, vinyl polymer, dimethyl silicone crosslinked elastomer, polymethyl methacrylate, methacrylate-alkylene dimethacrylate copolymer, etc. Can be used. These insoluble powders may be porous or non-porous.

The body cleaning sheet of the present invention shown in FIG.
An oily substance-absorbing dry sheet 1 and a liquid-retaining sheet for an aqueous cleaning liquid-impregnated wet sheet 2 are laminated using a hot-melt adhesive, and then the liquid-retaining sheet is impregnated by spraying with an aqueous cleaning liquid. To produce an aqueous cleaning liquid impregnated wet sheet 2. Further, after the oil-based substance-absorbing dry sheet 1 and the liquid-retaining sheet for the aqueous cleaning liquid-impregnated wet sheet 2 are partially heat-sealed, the liquid-retaining sheet is impregnated by spraying with an aqueous cleaning liquid. It can be manufactured by using the cleaning liquid-impregnated wet sheet 2. Further, the lamination of the oily substance-absorbing dry sheet 1 and the liquid-retaining sheet for the aqueous cleaning liquid-impregnated wet sheet 2 is not limited to the above-described example, and may be laminated using a melt lamination method. Alternatively, they may be directly laminated during the production of the nonwoven fabric.

The body cleaning sheet shown in FIGS. 2 to 7 can be manufactured in the same manner as the body cleaning sheet shown in FIG.

The body-cleaning sheet of the present invention is usually stored and stored in a sealed bag, and when used, the body-cleaning sheet is taken out of the sealed bag and used. For example, in the case of the body cleaning sheet shown in FIGS. 1 to 4, the oily substance-absorbing dry sheet side absorbs and removes oily dirt such as sebum that has emerged on the surface of the body (skin, hair, makeup), and is impregnated with an aqueous cleaning liquid. Remove the water stain on the wet sheet side. Therefore, according to the body cleaning sheet of the present invention, the oily stain and the water-based stain floating on the body surface or the makeup surface by using the front and back of one sheet can be easily removed without breaking the makeup. And the durability of the makeup is dramatically improved. In addition, in the case of the body cleaning sheet of FIGS. 5 to 7, the oily dirt and the water-based dirt on the body surface can be more easily removed without being turned over by applying the sheet while shifting the body surface. .

Further, since one body cleaning sheet is composed of an oily substance-absorbing dry sheet and an aqueous cleaning liquid-impregnated wet sheet, the elasticity of the oily substance-absorbing dry sheet is changed by the aqueous cleaning liquid-impregnated wet sheet. Thus, the adhesiveness between the oily substance-absorbing dry sheet and the skin can be improved, and oily dirt can be efficiently removed.

[0028]

EXAMPLES Example 1 Cotton nonwoven fabric having a basis weight of 40 g / m ² (Cot Ace C0)
40S / A01, manufactured by Unitika Ltd.) and a microporous polypropylene meltblown nonwoven fabric (Syntex MB; V3030N1 (manufactured by Mitsui Chemicals, Inc.) calendered to a thickness of 80 μm) overlaid with a 80 μm-thick nonwoven fabric. The melt-blown nonwoven fabric was welded in a perforated manner with a heat sealer. The obtained laminate was cut into a size of 10 cm × 5 cm, and the aqueous cosmetic solution of Table 1 below was sprayed on a cotton non-woven fabric until the water absorption rate shown in Table 2 was reached.
A double-sided body cleaning sheet shown in FIG. 1 was obtained.

Example 2 and Example 3 By the same operation as in Example 1, the same type of horizontal body cleaning sheet shown in FIG. 5 (Example 2) and the houndstooth type body cleaning sheet shown in FIG. A sheet (Example 3) was obtained.

Comparative Examples 1 to 3 A body cleansing sheet comprising a single-layer wet sheet (Comparative Example 1), a natural pulp dry sheet (Comparative Example 2) or a soft plastic film (Comparative Example 3) was prepared. .

[0031]

Ingredients% by weight 95 ° 8 acetylated sucrose-denatured alcohol (sebum dissolving agent) 14 Porous nylon powder (Orgasol 2002, manufactured by Elf Autochem) 3 L-menthol (cooling sensation agent) 0.02 Purified water 82.98

(Evaluation) Using the body cleaning sheets of Examples and Comparative Examples, ten specialized panelists pressed and removed dirt floating on the skin, and evaluated “oily dirt cleaning power” and “ "Water-based stain cleaning power", "Stain removal property of sheet"
The "freshness" was evaluated according to the criteria described below. Table 2 shows the evaluation results.

(Oil-based dirt cleaning power) A predetermined amount (W1) of artificial sebum (model sebum dirt) is applied to the inner part of the forearm, a body cleaning sheet is placed on the applied part, and 9.8 kPa is applied by hand from above the sheet. (100 gf / cm ² ) for 5 seconds to remove artificial sebum. The weight of the body cleaning sheet after this operation was measured, and the cleaning rate was calculated according to the following equation (where the weight of the body cleaning sheet before cleaning = W2, the weight of the body cleaning sheet after cleaning = W3). ).

[0034]

## EQU1 ## The cleaning rate (%) = {(W3−W2) / W1} × 100 The obtained cleaning rate was evaluated in three steps based on the following criteria.

Rank criteria ○: Cleaning rate is 80% or more △: Cleaning rate is 50% or more and less than 80% ×: Cleaning rate is less than 50%

(Water-based stain cleaning power) A predetermined amount of artificial sweat (model sweat stain) is applied to the inner part of the forearm, a body cleaning sheet is placed on the applied part, and 9.8 kPa is applied by hand from above the sheet.
(100 gf / cm ² ) for 5 seconds to remove artificial sweat. The skin feeling after cleaning was evaluated organoleptically in two steps according to the following criteria.

Rank Criteria ○: Non-sticky (good clean) ×: Sticky (incomplete clean)

(Stain Stain Removal Property) The stain removal property of the sheet was sensory evaluated in three stages according to the following criteria.

[0039]

(Refreshing Feeling) The refreshing feeling was sensory evaluated in three stages according to the following criteria.

Rank criteria ○: Refreshing △: Refreshing slightly ×: Refreshing

[0042]

[Table 2] Example Comparative Example 1 2 3 1 2 3 (FIG. 1) (FIG. 5) (FIG. 7) Water absorption rate of aqueous cosmetic liquid (%) 400 400 400 400--Oily substance absorbing sheet PP ^{* 1} PP ^{* 1} PP ^{* 1-} − PP ^{* 1} Aqueous cleaning liquid impregnated sheet CNW ^{* 2} CNW ^{* 2} CNW ^{* 2} CNW ^{* 2} − − Hydrophilic fiber dry sheet − − − − NP ^{* 3} − (Evaluation) Oily dirt cleaning power ○ ○ ○ × △ ○ Aqueous Dirt cleaning power ○ ○ ○ ○ × × Sheet stain removal ○ ○ ○ ○ × × Refreshing ○ ○ ○ △ × × Table 2 Note PP ^{* 1} : 80 μm thick microporous polypropylene meltblown nonwoven fabric (Syntex MB; V3030N1 (manufactured by Mitsui Chemicals, Inc.) calendered to a thickness of 80 μm) CNW ^{* 2} : Cotton with a basis weight of 40 g / m ² Non-woven fabric (Cot Ace C040S / A01, manufactured by Unitika Ltd.) NP ^{* 3} : Natural pulp with a basis weight of 25 g / m ²

As is clear from Table 2, the body cleaning sheets of Examples 1 to 3 obtained good results for all evaluation items.

On the other hand, the body cleaning sheet of Comparative Example 1 having no oily substance absorbing sheet had insufficient oily soil cleaning power. In addition, the single-layer body cleaning sheet made of the hydrophilic fiber nonwoven fabric of Comparative Example 2 having no oil-based substance absorbing sheet and not impregnated with the aqueous cosmetic liquid has a “water-based dirt-cleaning power”,
The results were insufficient for "stain removal property of sheet" and "freshness". Also, in the case of the body cleaning sheet of Comparative Example 3 which does not have the aqueous cleaning liquid impregnated sheet and is composed of a single layer of the oily substance absorbing sheet, the "water-based dirt cleaning power", "the dirt removal property of the sheet" and "freshness" Was insufficient.

[0045]

According to the body cleaning sheet of the present invention, skin and hair to which oily stains such as sebum and aqueous stains such as sweat and salts adhere can be easily cleaned. In particular, skin and hair can be easily cleaned without breaking makeup such as a foundation.

[Brief description of the drawings]

FIG. 1 is a sectional view of a body cleaning sheet of the present invention.

FIG. 2 is a perspective view of the body cleaning sheet of the present invention.

FIG. 3 is a cross-sectional view of the body cleaning sheet of the present invention.

FIG. 4 is a cross-sectional view of the body cleaning sheet of the present invention.

FIG. 5 is a perspective view of the body cleaning sheet of the present invention.

FIG. 6 is a perspective view of the body cleaning sheet of the present invention.

FIG. 7 is a perspective view of the body cleaning sheet of the present invention.

[Explanation of symbols]

1 ... Dry sheet absorbing oily substance, 2 ... Wet sheet impregnated with aqueous cleaning liquid, 3 ... Non-liquid permeable sheet, A ... Functional layer

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yama ▲ saki ▼ Toshio 2-1-3 Bunka, Sumida-ku, Tokyo Inside the Kao Research Institute (72) Inventor Machiko Yokoyama 2606 Kabane, Kakaicho, Haga-gun, Tochigi Prefecture Kao Inside the Research Laboratories of the Stock Company (72) Takashi Kawai 2606, Akabane, Kaigacho, Haga-gun, Tochigi Prefecture Inside the Research Institute of Kao Corporation (72) Inventor Manabu Kaneda 2606, Akabane, Kagamachi, Haga-gun, Tochigi Prefecture Reference) 4C083 AC102 AD072 AD532 CC22 CC31 4H003 AC08 BA19 DA02 DB02 EB04 EB38 ED02 ED28

Claims (5)

[Claims] 1. A body cleaning sheet having an oily substance absorbing area and an aqueous cleaning liquid impregnated area. 2. The body cleaning sheet according to claim 1, wherein the oily substance absorbing region constitutes at least a part of the front surface, and the aqueous cleaning liquid impregnated region constitutes at least a part of the back surface. 3. The body cleaning sheet according to claim 1, wherein the oily substance absorbing region and the aqueous cleaning liquid impregnated region constitute the same surface. 4. The body cleaning device according to claim 1, wherein the oily substance absorbing area is formed from an oily substance absorbing dry sheet, and the aqueous cleaning liquid impregnated area is formed from an aqueous cleaning liquid impregnated wet sheet. Sheet. 5. The body cleaning sheet according to claim 1, wherein an insoluble powder is contained on the front surface or the back surface.