JP5185451B2 - Cosmetic impregnated sheet and method for producing the same - Google Patents

Description

  The present invention relates to a cosmetic-impregnated sheet (sometimes referred to as a chemical-impregnated sheet) and a method for producing the same. In particular, the present invention relates to a cosmetic-impregnated sheet having suitable adhesiveness and predetermined cosmetic transpiration prevention property, and having good flexibility and shape followability, and a method for producing the same.

Conventionally, various sheet-like cosmetic products (sometimes referred to as a chemical liquid-impregnated sheet or a face mask) impregnated with a cosmetic liquid such as a skin lotion, a moisturizing liquid, or a cosmetic liquid, or a chemical such as a cooling agent have been proposed.
As such a sheet-like cosmetic, there has been proposed a sheet-type cosmetic that can prevent the transpiration of the cosmetic even when used for a long time, and can efficiently infiltrate the skin care cosmetic or the like into the skin.
More specifically, as shown in FIG. 14 (a), a sheet-like film 220 having hydrophobicity is adhered and formed on one side of a non-woven fabric sheet 210 having water absorption by an extrusion laminating process. 220 is a sheet-type cosmetic product in which a large number of pinholes 230 are formed (see, for example, Patent Document 1).

In addition, a face mask that makes it easy to spread a liquid-impregnated base material containing a cosmetic liquid and suppresses separation and separation of the cosmetic liquid from the liquid-impregnated base material and evaporation of active ingredients has been proposed.
More specifically, as shown in FIG. 14B, a face mask 300 in which a liquid-impregnated base material 310 containing a cosmetic liquid and a liquid blocking film 320 are overlapped and partially bonded. Yes (see, for example, Patent Document 2).

Further, a skin-impregnated sheet for cosmetic impregnation has been proposed that is less irritating to the skin and higher in wearability to the skin.
More specifically, as shown in FIG. 14 (c), an ultrafine fiber layer 420 containing a predetermined amount or more of ultrafine fibers of a predetermined fineness is provided on one or both surfaces of a predetermined hydrophilic fiber layer 410, It is the skin coating sheet 400 for cosmetics impregnation integrated (for example, refer patent document 3).

Japanese Patent Laying-Open No. 2005-212425 (Claims etc.) JP 2003-135146 A (Claims etc.) WO2006-016601 (Claims etc.)

However, the sheet-type cosmetic of Patent Document 1 has a problem in that it is poor in flexibility and shape followability because a hydrophobic sheet such as a polyethylene film or a polypropylene film is adhered and formed entirely by extrusion lamination. It was.
In addition, although it is described that a predetermined opening can be provided by utilizing the fact that pinholes are formed on a hydrophobic sheet during extrusion laminating, they are stably placed at any position. It was difficult to provide.

Moreover, although the face mask of patent document 2 has description of joining partially the liquid impregnation base material containing cosmetic liquid, and liquid blocking films, such as a polyethylene film and a polypropylene film, in the joining location It was not intended to provide a predetermined opening (through hole).
Accordingly, there has been a problem that the face mask as a whole is not only poor in flexibility and shape followability but also poor in adhesion between the liquid-impregnated base material and the liquid blocking film.

  In addition, the skin-covering sheet for impregnating cosmetics of Patent Document 3 is only integrated with hydrophobic ultrafine fibers and hydrophilic fibers, and is not provided with a predetermined film member. There was a problem that it was difficult to effectively prevent the external transpiration of the chemical solution, although a certain shape followability was obtained.

Accordingly, the inventors of the present invention have made extensive efforts to provide a thermocompression bonding part for partially thermocompression bonding the fiber layer and the hydrophobic film in a predetermined cosmetic impregnated sheet, and to the thermocompression bonding part. Correspondingly, it has been found that the above-mentioned problems can be solved by providing a predetermined opening (through hole), and the present invention has been completed.
That is, the present invention relates to a cosmetic-impregnated sheet and a cosmetic-impregnated sheet each having moderate adhesiveness, predetermined cosmetic transpiration prevention property, and good flexibility and shape followability, which are considered to be reciprocal properties. An object is to provide an efficient method for producing a sheet.

According to the present invention, there is provided a cosmetic-impregnated sheet obtained by laminating a fiber layer comprising a fiber material impregnated with a cosmetic and a hydrophobic film that prevents the cosmetic from evaporating, the fiber layer and the hydrophobic layer. the film, with some partially thermocompression bonded portions for laminating is provided, a hydrophobic film of the thermocompression bonding part is that you had openings provided penetrating toward the fiber layer, the pore diameter of the opening 0 A cosmetic-impregnated sheet is provided which has a value in the range of 0.05 to 3 mm and the hydrophobic film is a polyethylene terephthalate resin film having a thickness of 0.1 to 15 μm. can do.
That is, by providing a thermocompression bonding portion at a predetermined location of the hydrophobic film as described above, even if it is partial adhesion, it can be appropriately adhered at the interface between the hydrophobic film and the fiber layer.
In addition, since a hydrophobic film is provided and a predetermined opening is formed at a predetermined location thereof, the film has a predetermined cosmetic transpiration prevention property, and in the hydrophobic film, and thus the cosmetic-impregnated sheet. Good flexibility and shape followability can be obtained.
In addition, by providing an opening having such a hole diameter, appropriate adhesion between the hydrophobic film and the fiber layer, a predetermined cosmetic transpiration prevention property and good flexibility and shape in the cosmetic-impregnated sheet The balance between the followability and the tracking performance can be further improved.
Further, by providing a hydrophobic film of such kind and thickness, the balance between the predetermined cosmetic transpiration prevention property, good flexibility and shape followability, mechanical strength, etc. is further improved. Can be.

In the present invention, the thermocompression bonding part is located below the opening formed in the hydrophobic film, and a part of the fiber layer and a part of the hydrophobic film are welded by thermocompression bonding. It means a place.
In the present invention, the hydrophobic film basically corresponds to a film made of a predetermined material having a property that is not easily compatible with water. More specifically, the hydrophobic film is measured according to JIS K 6768. It means a film having a contact angle of 60 ° or more.

Further, in constituting the cosmetic impregnated sheet of the present invention, the number density of the openings is preferably set to a value in the range of ² to 70 / cm ² .
By providing an opening having such a number density, appropriate adhesion between the hydrophobic film and the fiber layer, a predetermined cosmetic transpiration preventive property in the cosmetic-impregnated sheet, and favorable flexibility and shape following. The balance between properties can be made even better.

In constituting the cosmetic impregnated sheet of the present invention, it is preferable that the contact angle of the hydrophobic film measured according to JIS K 6768 is 60 ° or more.
By providing the hydrophobic film having such a contact angle, it is possible to more effectively and quantitatively control the transpiration of the cosmetic into the air while providing a predetermined opening.

In constituting the cosmetic-impregnated sheet of the present invention, the fiber material is preferably cotton, rayon or cupra.
By configuring in this way, it is possible to efficiently absorb or hold a predetermined cosmetic, and when it is used as a face mask or the like, it exhibits a good skin care effect over a predetermined time. be able to.

Moreover, when comprising the cosmetics impregnation sheet | seat of this invention, it is preferable to make the fabric weight of a fiber layer into the value within the range of 10-300 g / m < ² >.
By restricting the basis weight of the fiber layer in this way, it is possible to efficiently absorb or hold a predetermined cosmetic, and when used as a face mask, it reduces irritation to the skin. Further, usability can be further improved.

Moreover, in constituting the cosmetic impregnated sheet of the present invention, the use is preferably a face mask for supplying the cosmetic impregnated in the fiber layer to the face.
By configuring in this way, as a face mask, even a three-dimensional face part can be sufficiently followed and applied reliably, and in addition, a good skin care effect can be exhibited over a predetermined time. .

Another aspect of the present invention is a method for producing a cosmetic-impregnated sheet obtained by laminating a fiber layer comprising a fiber material impregnated with a cosmetic and a hydrophobic film that prevents the cosmetic from evaporating. And a step of preparing a fiber layer and a hydrophobic film, which is a polyethylene terephthalate resin film having a thickness of 0.1 to 15 μm , and a heated needle-like object in a state where the fiber layer and the hydrophobic film are laminated. The opening having a hole diameter penetrating toward the fiber layer in the hydrophobic film in the thermocompression bonding portion is a value within the range of 0.05 to 3 mm at the same time as forming the thermocompression bonding portion by thermocompression. A method for producing a cosmetic-impregnated sheet.
In this way, the hydrophobic layer and the fibrous layer are partially bonded by thermocompression bonding of the fibrous layer and the hydrophobic film with a heated calender roll provided with a predetermined heatable needle-like object. However, it can be properly bonded.
In addition, since the predetermined opening can be provided at the same time by manufacturing in this way, the cosmetic impregnated sheet having the predetermined cosmetic transpiration prevention property and further having good flexibility and shape followability can be efficiently obtained. Can be manufactured automatically.
Furthermore, according to such a manufacturing method, a protrusion-like edge can be provided in the opening, and its height and width can be easily controlled. Therefore, it is possible to effectively prevent the cosmetic from flowing out of a predetermined place by the protruding edge of the opening.

In carrying out the method for producing a cosmetic-impregnated sheet of the present invention, it is preferable that the needle-like material is heated and the heating temperature of the needle-like material is set to a value within the range of 200 to 350 ° C.
By carrying out in this way, even if the hydrophobic film is a polyethylene terephthalate resin film, it can be sufficiently thermocompression-bonded, and an opening of a predetermined size can be accurately formed at a predetermined location. .

1A to 1B are a cross-sectional view and a plan perspective view of a cosmetic-impregnated sheet according to the present invention. 2 (a) to 2 (b) are diagrams provided for illustrating examples of hydrophobic films used in the cosmetic impregnated sheet of the present invention. FIGS. 3A to 3B are diagrams provided for explaining examples of formation patterns of openings in the cosmetic-impregnated sheet of the present invention. 4 (a) to 4 (c) are diagrams provided to illustrate examples of the hole diameters of the openings in the cosmetic-impregnated sheet of the present invention. Fig.5 (a)-(b) is a figure provided in order to demonstrate the side surface shape example of the opening part in the cosmetics impregnation sheet | seat of this invention, respectively. 6 (a) to 6 (b) are views provided to explain a face mask and a partial face mask as application examples of the cosmetic-impregnated sheet of the present invention. 7 (a) to 7 (b) are diagrams provided for explaining a modification of the cosmetic-impregnated sheet of the present invention. FIG. 8 is a diagram provided for explaining a cosmetic impregnated sheet manufacturing apparatus (thermocompression bonding apparatus) according to the present invention. FIGS. 9A to 9B are diagrams (photographs) provided to explain the face masks of Example 1 and Reference Example 8, respectively. FIGS. 10A to 10B are views for explaining a surface state including an opening of a face mask. FIGS. 11A to 11B are diagrams (photographs) provided to explain the state of the fiber layer in the non-thermocompression bonding portion and the thermocompression bonding portion in the face mask of Example 1. FIG. FIGS. 12A to 12B are views (photographs) provided to explain the folded state of the face masks of Example 1 and Reference Example 8, respectively. FIGS. 13A to 13B are diagrams (photographs) provided to explain the four-fold state of the face masks of Example 1 and Reference Example 8, respectively. 14 (a) to 14 (c) are views provided to explain conventional cosmetic-impregnated sheets and the like, respectively.

[First Embodiment]
1st Embodiment is a cosmetics impregnation sheet | seat formed by laminating | stacking the fiber layer containing the fiber material which impregnates cosmetics, and the hydrophobic film which prevents transpiration of cosmetics, Comprising: A fiber layer and hydrophobicity sex film, along with some partially thermocompression bonded portions for laminating is provided, a hydrophobic film of the thermocompression bonding part is that you had openings provided penetrating toward the fiber layer, the pore diameter of the opening A cosmetic-impregnated sheet having a value in a range of 0.05 to 3 mm and a hydrophobic film made of a polyethylene terephthalate resin film having a thickness of 0.1 to 15 μm .
More specifically, as illustrated in FIG. 1 (a) or (b), a predetermined fiber layer 12 and a predetermined hydrophobic film 14 are partially laminated and thermocompression bonded. A plurality of thermocompression bonding parts 18 (the thermocompression bonding parts are drawn with dotted circles for reference and understanding of the location) are formed so as to draw a predetermined arrangement pattern, and the hydrophobic film 14 and the fiber layer Moderate adhesiveness can be obtained.
Since predetermined openings 16 are respectively formed corresponding to the plurality of thermocompression bonding portions 18 in the hydrophobic film 14, one of the thermally melted hydrophobic films 14 is formed on the edge 16 a of the opening 16. As the part flows out, it joins with the fiber layer 12 and exhibits the function as the thermocompression bonding part 18, and the presence of the opening 16 is the flexibility and shape following property of the hydrophobic film 14 and thus the cosmetic-impregnated sheet 10. Adjust and make them good.
Hereinafter, the cosmetic impregnated sheet according to the first embodiment of the present invention will be specifically described with reference to the drawings as appropriate.

1. Hydrophobic film
(1) Kind
As a kind of the hydrophobic film, a polyethylene terephthalate resin is used .
This is because such a hydrophobic film is not only versatile and economically advantageous, but by using this hydrophobic film, a cosmetic-impregnated sheet having both properties of strength and flexibility can be obtained. This is because it can be done.
Conventionally, polyethylene terephthalate resin films are prone to pinholes during film formation, and it has been difficult to form films with a thickness of 5 μm or less. Therefore, face masks that require good flexibility and shape followability are required. There was a problem that it could not be used.
However, according to the present invention, by using a polyethylene terephthalate resin film having a predetermined thickness and forming a predetermined opening, a hydrophobic film having a predetermined strength and excellent flexibility and shape followability is obtained. Can

Furthermore , as shown in FIG. 2 (a), the hydrophobic film 14 may be composed of one kind of film, but as shown in FIG. 2 (b), a plurality of films 14a, 14b, It is also preferable to form the hydrophobic film 14 by combining 14c.
For example, when used as a face mask, a polyurethane resin film having excellent flexibility and stretchability is used as the hydrophobic film 14b at the center of the face mask, and the left and right hydrophobic films 14a and 14c have mechanical strength and It is preferable to use a polyethylene terephthalate resin film having excellent durability.

(2) Thickness The thickness of the hydrophobic film can also be determined in consideration of the anti-transpiration property and mechanical strength of cosmetics, the formability of openings, etc. A value in the range of 50 μm is preferable.
The reason for this is that if the value is within the range of the thickness, it is possible to effectively prevent the transpiration of the cosmetic and to form the opening with a predetermined flexibility, mechanical strength, or accuracy. This is because it can.
Accordingly, the thickness of the hydrophobic film is more preferably set to a value within the range of 1 to 30 μm, and further preferably set to a value within the range of 2 to 20 μm.

However, depending on the type of the hydrophobic film and good Mashiku changing its thickness, in the case of using a polyethylene terephthalate resin film, characterized in that the thickness of a value within the range of 0.1~15μm And
This is because when a polyethylene terephthalate resin film is used, it may be difficult to form a uniform film when the thickness is less than 0.1 μm. On the other hand, when the thickness exceeds 15 μm, the flexibility may be lowered, or it may be difficult to form the opening with high accuracy.
Therefore, when using a polyethylene terephthalate resin film, it is preferable to make the thickness into the value within the range of 0.5-6 micrometers, and it is more preferable to set it as the value within the range of 1-3 micrometers .

(3) Hydrophobicity As a measure of hydrophobicity in a hydrophobic film, the contact angle (measurement temperature: 25 ° C., measurement sample: pure water) measured according to JIS K 6768 of the hydrophobic film is 60 ° or more. It is preferable to set the value of.
This is because the cosmetic film impregnated in the fiber layer is effectively prevented from evaporating in the air by setting the contact angle of the hydrophobic film measured under predetermined conditions to a value within this range. This is because when the cosmetic-impregnated sheet is used as a face mask, the cosmetic can be supplied to the skin sufficiently and for a long time.
More specifically, when the contact angle of the hydrophobic film is less than 60 °, the cosmetic may excessively evaporate in the air, making it difficult to use the cosmetic-impregnated sheet for a long time. This is because there are cases.
However, if the contact angle of the hydrophobic film becomes excessively large, the types of usable hydrophobic films may be limited, and usable cosmetics may be limited.
Therefore, the contact angle of the hydrophobic film is more preferably set to a value within the range of 65 to 95 °, and further preferably set to a value within the range of 70 to 90 °.

(4) Surface processing Moreover, it is also preferable to give an uneven | corrugated pattern to the surface of a hydrophobic film by surface processing (embossing etc.).
The reason for this is that by applying a predetermined embossing process, the flexibility and stretchability of the cosmetic impregnated sheet can be further improved, or the size of the opening can be adjusted to reduce cosmetic transpiration prevention. This is because it can be improved.

2. Thermocompression bonding part (1) opening In addition, as shown in FIG. 1A, a plurality of thermocompression bonding parts 18 are provided in order to join the hydrophobic film 14 and the fiber layer 12 appropriately. Corresponding to these, the hydrophobic film 14 is provided with an opening 16 penetrating toward the fiber layer 12.
This is because the hydrophobic film itself has flexibility and shape following properties by providing predetermined openings at a plurality of locations corresponding to the thermocompression bonding portion of the hydrophobic film, and thus the flexibility and shape of the cosmetic-impregnated sheet. This is because the followability can be adjusted.
Therefore, even when a polyethylene terephthalate resin film or the like is used as the hydrophobic film, a good feeling when used as a face mask or the like can be obtained.
In addition, visibility can be improved by providing an opening corresponding to the thermocompression bonding portion. That is, in the case of a thermocompression bonding part that does not have an opening, it is discolored or deformed, so that the beauty of the cosmetic-impregnated sheet is likely to be impaired.

(2) Arrangement pattern of openings The arrangement pattern of the openings is not particularly limited. For example, a lattice pattern as shown in FIG. 1B or a zigzag pattern (not shown). It may be a straight line, a river, a spiral, a concentric circle, or an irregular pattern.
However, when the arrangement pattern of the plurality of openings is a lattice or other regular pattern as shown in FIG. 1 (b), by adjusting the hole diameter of the openings described later and the adjacent distance, a hydrophobic film, As a result, there is an advantage that it is easy to adjust the flexibility and shape followability of the cosmetic impregnated sheet.

On the other hand, it is not always necessary to form the opening 16 on the entire surface of the hydrophobic film 14, and it is also preferable to select and form a location where good flexibility and shape followability are desired.
For example, as shown in FIG. 3 (a), the hydrophobic film 14 'is divided into three equal parts, the upper region 14a', the middle region 14b ', and the lower region 14c', and the opening 16 'is divided into the upper region 14a' and the upper region 14a '. It is preferable to form only in the lower region 14c ′ and not in the middle region 14b ′.
Alternatively, as shown in FIG. 3B, the hydrophobic film 14 ″ is divided into three equal parts, the upper region 14 a ″, the middle region 14 b ″, and the lower region 14 c ″. It is also preferable to form only in the middle region 14b ″ and not in the upper region 14a ″ and the lower region 14c ″.

In determining the arrangement pattern of the openings, as shown in FIG. 4, the distance between the centers of adjacent openings, that is, the size of the pitch of the openings is a problem. It is preferable to set d2) to a value within the range of 0.5 to 20 mm.
That is, when the pitch (d2) of the openings becomes a value less than 0.5 mm, the width of the hydrophobic film existing between the adjacent openings becomes excessively small, or conversely, the pore diameter of the existing openings can be increased. This is because it may become excessively small, and it may be difficult to adjust the flexibility and shape followability of the hydrophobic film or the cosmetic-impregnated sheet.
On the other hand, if the pitch (d2) of the openings exceeds 20 mm, the width of the hydrophobic film existing between adjacent openings becomes excessively large, or conversely, the pore diameter of the existing openings is excessive. This is because it may be difficult to adjust the flexibility and shape followability of the hydrophobic film or the cosmetic-impregnated sheet.
Therefore, the pitch (d2) of the openings is more preferably set to a value within the range of 1 to 10 mm, and further preferably set to a value within the range of 2 to 5 mm.

(2) Planar shape of the opening The planar shape of the opening is not particularly limited, but is usually any one of a circle, an ellipse, a rectangle, an ellipse, a rhombus, a triangle, a star, and an irregular shape. It is preferable that
More specifically, as shown in FIG. 4A or FIG. 10A, the shape of the opening 16 is preferably a circle, or as shown in FIG.
This is because the opening having such a planar shape can be stably formed, and the flexibility and shape followability of the hydrophobic film, and thus the cosmetic-impregnated sheet can be easily adjusted. It is.
Furthermore, as shown in FIG. 10 (b), as an embodiment of an embodiment to be described later, when the shape of the opening 16 is an ellipse, it can be stably formed, and the hydrophobic film 14, and thus the makeup. This is because the material-impregnated sheet 10 can be provided with anisotropy with respect to the elongation rate in the width direction and the elongation rate in the length direction.

(3) Hole diameter of opening part Moreover, the hole diameter (d1) of an opening part is made into the value within the range of 0.05-3 mm, It is characterized by the above-mentioned.
The reason for this is that the flexibility and shape followability of the hydrophobic film, and thus the cosmetic-impregnated sheet, can be obtained without excessively reducing the mechanical strength and the anti-transpiration property of the hydrophobic film 14 if the size is such. This is because it can be easily controlled. Moreover, if it is this magnitude | size, it is because moderate adhesiveness is obtained between a hydrophobic film and a fiber layer.
Therefore, the pore diameter (d1) of the opening of the hydrophobic film is more preferably set to a value within the range of 0.1 to 1 mm, and further preferably set to a value within the range of 0.2 to 0.8 mm.

In addition, the hole diameter (d1) of an opening part means the diameter (circle equivalent diameter) in the opening part of a predetermined shape.
Therefore, for example, as shown in FIG. 4 (a), when the shape of the opening is circular, the diameter is directly the hole diameter (d1), and the shape is rectangular as shown in FIG. 4 (b). In this case, it means a diameter corresponding to a circle having the same area (equivalent circle diameter).

Furthermore, the hole diameter (d1) of the opening does not necessarily need to be the same over the entire surface of the hydrophobic film 14, and it is also preferable to change by appropriately selecting a place where good flexibility and shape followability are desired.
For example, as shown in FIG. 4C, the hydrophobic film 14 ″ ″ is divided into three equal parts, the upper region 14 a ″, the middle region 14 b ″, and the lower region 14 c ″. The hole diameter (d1) of the opening 16 of 14a '''' is the smallest, then the hole diameter (d1) of the opening 16 of the middle area 14b '''' is made larger than that, and further the lower area 14c '''' It is preferable to increase the hole diameter (d1) of the opening 16.
By comprising in this way, it can be set as the hydrophobic film 14 '''from which a softness | flexibility and shape followability become favorable sequentially from upper direction toward the downward direction.

(4) Edge of Opening As shown in FIGS. 1A and 1B, it is preferable to provide a protruding edge 16a having a predetermined height and a predetermined width around the opening 16.
The reason is that the protruding edge of the opening can effectively prevent the cosmetic from flowing out of a predetermined place.
Therefore, specifically, the height of the edge of the opening is preferably set to a value within the range of 0.05 to 5 mm, more preferably set to a value within the range of 0.1 to 3 mm. More preferably, the value is in the range of ˜2 mm.
Similarly, the width of the edge of the opening is preferably set to a value within the range of 0.01 to 1 mm, more preferably set to a value within the range of 0.05 to 0.5 mm. More preferably, the value is in the range of ~ 0.2 mm.
The height and width of the edge of the opening can be easily controlled by adjusting the heating temperature, pressing pressure, pressing speed (moving speed of the fiber layer and the hydrophobic film), etc. of the needle-shaped object. .
However, when the edge of the opening is unnecessary, it is also preferable to flatten the edge of the opening by applying predetermined heat and pressure by hot pressing or the like.

(5) Number density of openings The number density (existence density or existence ratio) of openings is preferably set to a value in the range of ² to 70 / cm ² .
The reason for this is that when the number density of openings is less than 2 / cm ² , the flexibility and shape followability of the hydrophobic film, and thus the cosmetic-impregnated sheet, are significantly reduced. This is because the adhesiveness between and may decrease.
On the other hand, if the number density of the openings exceeds 70 / cm ² , it may be difficult to form the openings stably, or the cosmetic transpiration prevention property may be excessively lowered. .
Therefore, the number density of the openings in the hydrophobic film is more preferably set to a value within the range of 20 to 65 / cm ² , and further preferably set to a value within the range of 30 to 60 / cm ² .
The number density of the plurality of openings does not necessarily have to be the same over the entire surface of the hydrophobic film, and the number density is increased by appropriately selecting a place where good flexibility and shape followability are desired. Is also preferable.

(6) Area ratio of opening part Moreover, the area ratio of the opening part in a hydrophobic film, ie, the ratio of the total area of several opening part per unit area (100%) of a hydrophobic film, is 1-30%. A value within the range is preferable.
This is because, when the area ratio of the opening is less than 1%, it may be difficult to process the hydrophobic film, and thus the cosmetic-impregnated sheet.
On the other hand, if the area ratio of the opening exceeds 30%, it may be difficult to stably form the opening, or the cosmetic transpiration prevention property may be excessively lowered.
Therefore, the area ratio of the openings in the hydrophobic film is more preferably set to a value within the range of 5 to 25%, and further preferably set to a value within the range of 7 to 20%.
In addition, the area ratio of the plurality of openings does not necessarily have to be the same on the entire surface of the hydrophobic film, and appropriately increases and decreases the area ratio by appropriately selecting a place where good flexibility and shape followability are desired. Is also preferable.

(7) Side shape of the opening The side shape of the opening is not particularly limited, but as shown in FIG. 5 (a), a columnar shape, or as shown in FIG. 5 (b). It is preferable that the hole diameter is tapered from the crimping portion toward the opening.
This is because such a columnar or tapered side surface shape can be stably and accurately formed using a heated needle-like object or the like.

3. Fiber layer (1) Fiber material In addition, the type of fiber material constituting the fiber layer is not particularly limited. For example, cotton, pulp, silk, rayon, cupra, polyester, polyamide, polyacryl, polyolefin , Polyvinyl alcohol, polyvinyl chloride, polypropylene, lyocell and the like are preferably used alone or in combination of two or more.
And it is preferable that it is a hydrophilic fiber layer containing the hydrophilic fiber material whose contact angle is below a predetermined value so that it may mention later.
That is, with such a hydrophilic fiber layer, it can be well-impregnated with cosmetics and can be sufficiently impregnated, and can be stably maintained, and is good for a long time when used as a face mask or the like. A feeling of use can be obtained.

Further, the fiber layer containing the fiber material is not particularly limited as long as it is a sheet-like material having flexibility and shape followability. For example, a woven fabric, a knitted fabric, a nonwoven fabric, and paper are preferable.
That is, the fiber layer having such a form can be sufficiently impregnated with cosmetics and can reduce irritation to the skin.
And since it is comparatively cheap and thermocompression bonding with a hydrophobic film is easy, it is more preferable to comprise a fiber layer from a nonwoven fabric.

Moreover, it is preferable to make the diameter of a fiber material into the value within the range of 0.1-30 micrometers.
The reason for this is that when the diameter of the fiber material is less than 0.1 μm, handling becomes difficult, the mechanical strength is reduced, and further, when the fiber layer is formed, body fluids are absorbed appropriately. This is because it may be difficult to do.
On the other hand, if the diameter of the fiber material exceeds 30 μm, the flexibility and shape following property may be lowered when the cosmetic-impregnated sheet is formed.
Accordingly, the diameter of the fiber material is preferably set to a value within the range of 0.5 to 20 μm, and more preferably set to a value within the range of 1 to 15 μm.

(2) Basis weight Moreover, it is preferable to make the fabric weight of a fiber layer into the value within the range of 10-300 g / m < ² >.
This is because if the basis weight is less than 10 g / m ² , it may be difficult to sufficiently impregnate the fiber layer with the cosmetic material and may not be used for a long time.
On the other hand, when the basis weight exceeds 300 g / m ² , the cosmetic is excessively impregnated to cause dripping, or the cosmetic impregnated sheet becomes excessively heavy during use and falls during use. This is because it may be difficult to fold and store in a packaging bag at the time of manufacture, and usability and handling may be reduced.
Therefore, the basis weight of the fiber layer is preferably set to a value within the range of 30 to 200 g / m ² , and more preferably set to a value within the range of 50 to 120 g / m ² .

(3) Hydrophilicity Also, when the fiber material is a hydrophilic fiber material, as a measure of its hydrophilicity, a contact angle measured in accordance with JIS K 6768 (measurement temperature: 25 ° C., measurement sample: pure water) Is preferably set to a value within the range of less than 10 to 60 °.
This is because when the value of the contact angle is less than 10 °, not only the types of usable hydrophilic fibers are limited, but also usable cosmetics may be limited.
On the other hand, when the contact angle of the hydrophilic fiber material exceeds 60 °, it becomes a hydrophobic fiber material, and the cosmetic material cannot be sufficiently impregnated into the fiber layer, resulting in dripping during use, resulting in reduced usability. It is because there is a case to do.
Therefore, the contact angle of the hydrophilic fiber material is preferably set to a value within the range of 15 to 58 °, and more preferably set to a value within the range of 20 to 55 °.
The contact angle of the hydrophilic fiber material is measured in accordance with JIS K 6768, but it is measured after dissolving or decomposing the hydrophilic fiber using a predetermined solvent and making it into a film having a predetermined thickness. Can do.

(4) Thickness Moreover, it is usually preferable to set the thickness of the fiber layer to a value within the range of 10 to 2000 μm.
The reason for this is that when the thickness of the fiber layer is less than 10 μm, the cosmetic material may be sufficiently impregnated or the handleability may be lowered.
On the other hand, when the thickness of the fiber layer exceeds 2000 μm, the flexibility and the shape followability become poor, or the usability decreases.
Therefore, the thickness of the fiber layer is preferably set to a value within the range of 30 to 1000 μm, and more preferably set to a value within the range of 50 to 500 μm.

4. Cosmetics The type of cosmetics impregnated into the fiber layer can be appropriately changed in consideration of the use of the cosmetic impregnated sheet, but since it can be used as a face mask, it is possible to use cosmetics or medical chemicals. Preferably there is.
And, these content components are not particularly limited, but if it is a cosmetic liquid, a lotion, a moisturizing liquid, a whitening liquid, a cleansing liquid, a pack liquid, a slimming component, an antiperspirant component, etc. are preferable, In the case of a medical solution, a cooling agent, a heat retaining agent, a poultice, a disinfectant, a blood circulation promoter, and the like are suitable.

5. Uses The use of the cosmetic impregnated sheet of the present invention is not particularly limited, and various parts of the human body, such as the entire face, eyes, nose, mouth, hands, feet, elbows, knees, shoulders, hips, It is suitable for sticking to the neck etc. and supplying predetermined cosmetics.
And since it has good flexibility and shape followability, which are conflicting properties, and predetermined cosmetic transpiration prevention properties, it is applied to the face for a predetermined time, and the predetermined cosmetic is stably supplied to the face. It is preferable to use as a face mask for the purpose or a partial face mask for supplying a predetermined cosmetic material intensively to a predetermined part of the face.

  An example of the face mask 50 is shown in FIG. That is, the planar shape is generally circular, and openings are provided at locations corresponding to both eyes and mouth of the face, and cuts 54 are provided along the shape of the nose at positions corresponding to the nose of the face. It is a certain aspect. In addition, a predetermined number of cuts 58a to 58d are provided on the outer periphery of the face mask 50 so as to show better followability of the outer shape and to improve usability.

  FIG. 6B shows an example of the partial face mask 60. That is, the planar shape is a wide boomerang shape, which is a shape that easily follows a predetermined portion of the face below the eyes of the face, below the mouth, or three-dimensional face.

6). Modified Example (1) Adhesive Layer Further, as shown in FIG. 7A, an adhesive layer (including a primer layer and a surface modification layer) 13 is provided between the fiber layer 12 and the hydrophobic film 14. It is preferable that a plurality of thermocompression bonding portions 18 are formed by partially thermocompression bonding in a state where they are stacked.
By providing the adhesive layer 13 in this way, the positional deviation between the fiber layer 12 and the hydrophobic film 14 is reduced, and the predetermined opening 16 can be formed with high accuracy.
Moreover, by providing the adhesive layer 13 in this way, the adhesive force between the fiber layer 12 and the hydrophobic film 14 can be improved, and the flexibility and shape following property of the cosmetic-impregnated sheet can be improved. This is because it can be adjusted more easily.

Here, the thickness of the adhesive layer 13 is usually preferably a value in the range of 1 to 100 μm, more preferably a value in the range of 5 to 50 μm, although it depends on the type. More preferably, the value is within the range of 10 to 30 μm.
Further, the type of the adhesive that constitutes the adhesive layer 13 is not particularly limited. For example, an acrylic adhesive, a silicone adhesive, a urethane adhesive, an olefin adhesive, and an epoxy adhesive. , Polyester adhesives, rubber adhesives, and the like.
In addition, as a formation method of the adhesive bond layer 13, you may apply | coat a hot-melt-adhesive, fuse | melting, However, It is also preferable to impregnate using a solvent or to apply by spray.

(2) Decoration layer Moreover, as shown in FIG.7 (b), the decoration layer (a coloring layer is included) 15 is formed in the surface of the hydrophobic film 14, and also to the said decoration layer by partial thermocompression bonding Preferably, a plurality of openings 16 are formed.
The reason for this is that the appearance, aesthetics, or information properties of the cosmetic-impregnated sheet can be obtained by coloring or decorating the hydrophobic film located on the outer surface at the time of use, or by printing characters or the like. It is for improving.
For example, when a female face mask is formed from a cosmetic-impregnated sheet, it is preferable to color a pastel color such as pink, give a floral pattern or the like, or print a predetermined number or the like.
As a method for forming the decoration layer 15, it is preferable to use the hydrophobic film 14 provided with the decoration layer 15 in advance, but it is post-processed and applied with a predetermined paint or laminated with a colored tape, It is also preferable to form.

[Second Embodiment]
The second embodiment of the present invention is a method for producing a cosmetic-impregnated sheet obtained by laminating a fiber layer containing a fiber material impregnated with a cosmetic and a hydrophobic film that prevents the cosmetic from transpiration, A step of preparing a fiber layer and a hydrophobic film which is a polyethylene terephthalate resin film having a thickness of 0.1 to 15 μm, and a layer formed by heating the needle-like material in a state where the fiber layer and the hydrophobic film are laminated The thermocompression bonding is performed to form the thermocompression bonding portion, and at the same time, the hydrophobic film in the thermocompression bonding portion is provided with an opening having a hole diameter penetrating toward the fiber layer in a range of 0.05 to 3 mm. A cosmetic impregnated sheet comprising the steps of:
Hereinafter, the manufacturing method of the cosmetic impregnated sheet according to the second embodiment of the present invention will be specifically described with reference to the thermocompression bonding apparatus 100 shown in FIG.

1. Preparation Step The preparation step is a step of preparing a fiber layer and a hydrophobic film that are constituent materials of the cosmetic-impregnated sheet.
That is, as shown in FIG. 8, it is preferable to prepare a roll-like hydrophobic film 14a and a roll-like fiber layer 12a, and to respectively install them at the unwinding position.
Then, the long hydrophobic film 14 and the long fiber layer 12 are respectively unwound from the unwinding position and laminated with each other using the temporary pressure-bonding rolls 102 and 104 while being aligned (temporary pressure-bonding). It is preferable to do.
In addition, the laminated body of the hydrophobic film 14 and the fiber layer 12 is made denser by heating both or one of the temporary press-bonding rolls 102 and 104 to a predetermined temperature, for example, 30 to 70 ° C. Can be.

2. Thermocompression bonding process The thermocompression bonding process is a partial thermocompression laminate of a fiber material and a hydrophobic film, and includes a thermocompression laminate having a predetermined opening (hereinafter referred to as a partial thermocompression laminate and It is a process of manufacturing.
More specifically, as shown in FIG. 8, in a state where the long hydrophobic film 14 and the long fiber layer 12 are laminated, the heated needle-like object 108a partially heats up. At the same time as forming the thermocompression bonding part 18 by crimping, the hydrophobic film 14 in the thermocompression bonding part 18 is provided with an opening 16 penetrating toward the fiber layer 12 to manufacture a partial thermocompression laminate 110. It is a process.
That is, a needle-shaped object 108a having a predetermined shape is provided on the surface of the heat calender roll 108, thereby forming the predetermined thermocompression bonding portion 18 in the partial thermocompression laminate 110, and at the same time, The predetermined opening 16 can be efficiently and accurately provided at a predetermined position of the corresponding hydrophobic film 14.

Here, although the heating temperature of the needle-shaped object at the time of manufacturing a partial thermocompression-bonded laminate is determined in consideration of the type of the hydrophobic film, etc., it is usually set to a value within the range of 80 to 400 ° C. Is preferred.
The reason for this is that by using a needle-like material having such a heating temperature, the fiber layer containing the fiber material and the hydrophobic film can be reliably thermocompression bonded, and a predetermined opening can be accurately formed. This is because it can be formed well.
Therefore, it is more preferable to set the heating temperature of the needle-like material when producing the partial thermocompression laminate to a value within the range of 120 to 350 ° C, and further to a value within the range of 180 to 300 ° C. preferable.

However, when manufacturing the partial thermocompression bonding laminates, according to the type of the hydrophobic film and fibrous layer, needles it is good Mashiku to change the heating temperature of the heating temperature of the needles, hydrophobic When a polyethylene terephthalate resin film is used as the conductive film, the value is in the range of 200 to 350 ° C.
The reason for this is that by manufacturing under such heating conditions, it is possible to reliably perform thermocompression bonding according to the type of film or fiber, and to form a predetermined opening with higher accuracy. .

3. Cutting process Moreover, a cutting process is a process of cutting the obtained partial thermocompression-bonded laminated body into a predetermined shape or a predetermined size according to the application or the like.
For example, by using a cutting tool such as a cutter or a laser, the planar shape of the partial thermocompression-bonded laminate can be a rectangle, a square, a circle, an ellipse, a long shape, an irregular shape, a face shape, or the like.
Therefore, as described above, the shape of the face mask 50 or the partial face mask 60 can be obtained as shown in FIGS.

4). Packaging process (cosmetics impregnation process)
Further, the packaging step is a step of impregnating a partially thermocompression-bonded laminate having a predetermined shape and a predetermined size with a cosmetic and covering the periphery so that the cosmetic does not flow out.
That is, cosmetics are applied to or sprayed on the partial thermocompression laminate, or the partial thermocompression laminate is immersed in the cosmetic contained in a predetermined container. Thus, a predetermined cosmetic can be impregnated.

Finally, packaging is possible by covering the periphery of the partially thermocompression laminated body impregnated with the cosmetic with a plastic film or the like on which aluminum foil or the like is laminated.
Therefore, even in a state where the partial thermocompression laminate is impregnated with a predetermined cosmetic, the characteristics can be maintained for a long time until the packaging is opened and used.

  Hereinafter, the present invention will be described in more detail by way of examples. However, the following description shows the present invention by way of example, and the present invention is not limited to these descriptions.

[Example 1]
1. Preparation of cosmetic impregnated sheet (1) Preparation step of fiber material and hydrophobic film As a fiber layer containing a hydrophilic fiber material, a cotton non-woven fabric having a width of 40 cm, a length of 10 m, and a basis weight of 80 g / m ² (contact angle) 10 °).
On the other hand, a polyethylene terephthalate resin film (contact angle 65 °) having a width of 40 cm, a length of 10 m, and a thickness of 2.5 μm was prepared as a hydrophobic film.

(2) Thermocompression bonding step Next, while transferring the fiber layer and the hydrophobic film in a laminated state, a needle-like object as shown in FIG. 8 (shape: conical shape, maximum diameter: 0.5 mm, length) : 1.0 mm) Using the thermocompression bonding apparatus 100 including the heated calender roll 108 provided with the outer peripheral surface 108a, partial thermocompression bonding was performed.
That is, a plurality of thermocompression bonding portions are formed by partially thermocompression bonding with a needle-like material heated to 220 ° C., and at the same time, an opening (planar surface) that penetrates the hydrophobic film in the thermocompression bonding portion toward the fiber layer. (Shape: circular, diameter: 0.5 mm, number density 50 / cm ² ) were provided to obtain a partial thermocompression-bonded laminate.

(3) Cutting process Next, the obtained partial thermocompression-bonded laminate was cut into a predetermined shape shown in FIG. 9A using a cutter as a cutting device to obtain a face mask.
When the front side of the face mask at this stage was observed with a microscope, as schematically shown in FIG. 10A, the hydrophobic film 14 was melted and removed in the thermocompression bonding portion 18, and the diameter was about 0.5 mm. It was confirmed that the opening 16 as a circular through hole and the edge 16a of the opening were formed, and in the opening 16, a part of the fiber layer 12 was exposed.

  In addition, when the back side of the face mask was observed with a microscope, as shown in FIG. 11 (a), in the non-thermocompression bonding portion, the fiber layer was uniformly entangled, whereas the opening on the front side was not visible, As shown in FIG. 11 (b), it was confirmed that at the thermocompression bonding part, a part of the fiber layer was unwound and a part of the opening on the front side was visible.

2. Evaluation of face mask (cosmetics impregnated sheet) (1) Adhesiveness (Evaluation 1)
The obtained face mask (4 cm long × 10 cm wide) was immersed in boiling water at 100 ° C. for a predetermined time with the hydrophobic film facing upward, and then the hydrophobic film and the fiber layer were peeled off with bare hands. Adhesion was evaluated according to criteria.
(Double-circle): Even if it immerses for 12 hours or more, it cannot peel at the interface of a hydrophobic film and a fiber layer.
○: Even if immersed for 6 hours or more, it cannot be peeled off at the interface between the hydrophobic film and the fiber layer.
(Triangle | delta): Even if it immerses for 1 hour or more, it cannot peel at the interface of a hydrophobic film and a fiber layer.
X: It is immersion for less than 1 hour, and can be peeled off at the interface between the hydrophobic film and the fiber layer.

(2) Impregnation of cosmetics (Evaluation 2)
The obtained face mask (length 4 cm × width 10 cm) was placed in a predetermined container with a hydrophobic film on the bottom (1% sodium hyaluronate, 2% gelatin, 1% paraben, polyvinyl) 2% by weight of alcohol, 3% by weight of polyacrylic acid, 3% by weight of glycol salicylate, 25% by weight of polyglycerin, 63% by weight of purified water), and the impregnation property of the cosmetic was evaluated according to the following criteria.
A: The cosmetic can be sufficiently impregnated within 1 minute.
○: The cosmetic can be sufficiently impregnated within 3 minutes.
Δ: The cosmetic can be sufficiently impregnated within 5 minutes.
X: The cosmetic cannot be sufficiently impregnated within 5 minutes.

(3) Flexibility (Evaluation 3)
The flexibility of the face mask was judged from its foldability (two-folded state and four-folded state), and evaluated according to the following criteria.
(Double-circle): Even if it is a non-pressurized state, it can maintain a bi-fold state and a 4-fold state as it is, without restoring | restoring.
◯: When it is in a non-pressurized state, it is slightly restored, but the bi-fold state and the quarter-fold state can be maintained as they are.
(Triangle | delta): Although it will restore | restore considerably if it will be in a non-pressurized state, if it is a two-fold state, it can be maintained.
X: When it is in a non-pressurized state, it will be restored to its original shape and cannot be maintained even in a folded state.
For reference, FIG. 12A shows a photograph of the face mask folded in two, and FIG. 13A shows a photograph of the face mask folded in four.

(4) Shape following (evaluation 4)
Similar to Evaluation 2, a face mask sufficiently impregnated with cosmetics was applied to the face, and shape followability was evaluated according to the following criteria.
(Double-circle): It can apply to the shape of a face very smoothly in 30 seconds or less.
○: It can be applied to the face shape relatively smoothly in 1 minute or less.
Δ: Although it takes more than 1 minute, it can be applied to the shape of the face.
×: Even if it takes more than 1 minute, it cannot be applied to the face shape.

(5) Prevention of cosmetic transpiration (Evaluation 5)
A face mask (4 cm long × 10 cm wide) sufficiently impregnated with water with the hydrophobic film facing upward was left in a constant temperature and humidity chamber at 20 ° C. and 65% RH in a state of being attached to an acrylic plate. Subsequently, the change in weight of the face mask after 30 minutes was measured, and then the amount of water transpiration was calculated, and the cosmetic transpiration prevention property was evaluated according to the following criteria.
Note that the transpiration amount of water is 100% at the maximum, and the lower the value, the lower the transpiration amount of water.
A: The amount of transpiration of water after 30 minutes is 60% or less.
A: The amount of transpiration of water after 30 minutes is 70% or less.
(Triangle | delta): The transpiration | evaporation amount of water after 30-minute progress is 80% or less.
X: The amount of transpiration of water after 30 minutes is over 80%.

[Example 2]
In Example 2, a face mask was obtained in the same manner as in Example 1 except that the number of needles provided in the heated calendar roll was reduced and the number density of openings to be formed was reduced to 25 / cm ^2. Was created and evaluated. The obtained evaluation results are shown in Table 1.
In the case of the face mask of Example 2, the number density of the openings seems to be half of that of Example 1, but the adhesiveness evaluation, the cosmetic impregnation evaluation, and the face mask of Example 1, and In the flexibility evaluation, the evaluation results tended to decrease slightly.

[Example 3]
In Example 3, a face mask was obtained in the same manner as in Example 1 except that the number of needles provided in the heated calendar roll was increased and the number density of openings to be formed was increased to 70 / cm ^2. Was created and evaluated. The obtained evaluation results are shown in Table 1.
In the case of the face mask of Example 3, the number density of the openings seems to be 1.4 times that of Example 1, but the evaluation result of transpiration prevention is slightly lower than that of the face mask of Example 1. There was a trend.

[Example 4]
In Example 4, the face mask was changed in the same manner as in Example 1 except that the maximum diameter of the needle-like material provided in the heated calendar roll was reduced and the diameter of the opening to be formed was reduced to 0.2 mm. Created and evaluated. The obtained evaluation results are shown in Table 1.
In addition, in the case of the face mask of Example 4, it seems that the diameter of the opening is as small as 2/5 of Example 1, but the adhesiveness evaluation and the impregnation evaluation of cosmetics are more effective than the face mask of Example 1. In the evaluation of flexibility and flexibility, the evaluation results tended to decrease slightly.

[Example 5]
In Example 5, the face mask was changed in the same manner as in Example 1 except that the maximum diameter of the needle-shaped object provided in the heated calendar roll was increased and the diameter of the opening to be formed was increased to 0.7 mm. Created and evaluated. The obtained evaluation results are shown in Table 1.
In the case of the face mask of Example 5, it seems that the diameter of the opening is as large as 7/5 of Example 1, but the transpiration prevention evaluation result tends to be slightly lower than that of the face mask of Example 1. It was observed.

[Example 6]
In Example 6, a face mask was prepared and evaluated in the same manner as in Example 1 except that the thickness of the hydrophobic film was increased to 5 μm. The obtained evaluation results are shown in Table 1.
In addition, in the case of the face mask of Example 6, it seems that the thickness of the hydrophobic film is twice as thick as that of Example 1, but in the adhesive evaluation and flexibility evaluation than the face mask of Example 1, There was a tendency for the evaluation results to decrease slightly.

[ Reference Example 7]
In Reference Example 7, a face mask was prepared and evaluated in the same manner as in Example 1 except that the type of hydrophobic film was changed to a polyurethane film having a thickness of 10 μm. The obtained evaluation results are shown in Table 1.
In addition, in the case of the face mask of Reference Example 7, it seems that the type of the hydrophobic film was changed to the polyurethane film, but although the polyurethane film considerably thicker than the face mask of Example 1 was used, the Example The same excellent adhesion evaluation and flexibility evaluation as in No. 1 were obtained.

[ Reference Example 8]
In Reference Example 8, the fiber layer containing the hydrophilic fiber material was changed to a rayon nonwoven fabric (contact angle 10 °) having a width of 40 cm, a length of 10 m, and a basis weight of 100 g / m ² , and the thickness of the polyurethane film was 20 μm. A face mask was prepared and evaluated in the same manner as in Example 7 except that. The obtained evaluation results are shown in Table 1.
That is, in the case of the face mask of Reference Example 8, the type of the hydrophobic film was changed to a polyurethane film having a predetermined thickness, and a rayon nonwoven fabric was used. Flexibility evaluation etc. were obtained.
For reference, FIG. 9B shows an external view of the face mask of Reference Example 8, FIG. 12B shows the face mask folded in two, and FIG. 13B shows the face mask folded in four. Each photo is shown.
Further, when the front side of the face mask was observed with a microscope, as shown schematically in FIG. 10B, the hydrophobic film 14 was melted and removed in the thermocompression bonding portion 18, and the major axis was about 1 mm and the minor axis was about 0.5 mm. It was confirmed that the opening 16 and the edge 16a of the opening as a substantially long through hole were formed, and a part of the fiber layer 12 was exposed in the opening 16.

[Comparative Example 1]
In Comparative Example 1, a polyethylene terephthalate resin film having a thickness of 18 μm was used as the hydrophobic film, and a thermocompression bonding portion (planar shape: circular, diameter: 0.5 mm, number density 50 / cm) that did not penetrate toward the fiber layer. ^A face mask was prepared and evaluated in the same manner as in Example 1 except that ² ) was provided. The obtained evaluation results are shown in Table 1.
In Comparative Example 1, the opening of a predetermined size is not formed as a through hole, and the thickness of the polyethylene terephthalate resin film as the hydrophobic film is slightly thick, so that the flexibility and shape followability are high. In each evaluation, it was confirmed that only an evaluation of Δ or less was obtained.

[Comparative Example 2]
In Comparative Example 2, a polyethylene resin film having a thickness of 20 μm is used as the hydrophobic film, and a thermocompression bonding part that does not penetrate toward the fiber layer (planar shape: circular, diameter: 0.5 mm, number density 1 / cm ²⁾ ) Was prepared and evaluated in the same manner as in Example 1. The obtained evaluation results are shown in Table 1.
In Comparative Example 2, it is assumed that the opening of a predetermined size was not formed as a through-hole and a polyethylene resin film as a hydrophobic film was used, but adhesiveness, body fluid absorbability, flexibility In each evaluation of the shape followability, it was confirmed that only an evaluation of Δ or less was obtained.

* The numerical value in the hydrophobic film column means the thickness (μm) of the hydrophobic film.
* Evaluation 1: Adhesiveness, Evaluation 2: Cosmetic impregnation, Evaluation 3: Flexibility, Evaluation 4: Shape followability,
Evaluation 5: Prevention of transpiration

As described above in detail, according to the cosmetic-impregnated sheet of the present invention, by providing a predetermined hydrophobic film and a fiber layer and having a predetermined opening in the thermocompression bonding portion, good flexibility and The shape following ability and the predetermined cosmetic transpiration prevention ability can be exhibited.
Therefore, when the cosmetic-impregnated sheet of the present invention is used as a face mask sheet for supplying cosmetics to the face, not only adhesion to the face and followability are good, but also sufficient for long-time use. New cosmetics can be supplied.

  Further, according to the method for producing a cosmetic-impregnated sheet of the present invention, a needle-shaped object having a predetermined shape is provided on the surface of the heated calender roll, and heated to form a laminate of the hydrophobic film and the fiber layer. On the other hand, it is possible to efficiently and inexpensively manufacture a cosmetic impregnated sheet that exhibits predetermined cosmetic transpiration prevention properties and good flexibility and shape followability by a method of performing calendar processing. became.

In addition, according to the method for producing a cosmetic-impregnated sheet of the present invention, a cosmetic-impregnated sheet having elongation anisotropy can be easily obtained.
That is, when producing a cosmetic-impregnated sheet, the elongation rate in the direction of calendering with heated needles, that is, in the length direction in which the laminate of the long hydrophobic film and the fiber layer is moved On the other hand, it has been found that the elongation ratio increases in the width direction perpendicular to the direction in which the laminate of the hydrophobic film and the fiber layer is moved.
More specifically, in the case of the cosmetic-impregnated sheet of Example 1, the ratio represented by the elongation ratio in the width direction / the elongation ratio in the length direction is about 1.5. In this case, the ratio expressed by the elongation ratio in the width direction / the elongation ratio in the length direction was about 2.5.
Therefore, when a face mask or the like is configured using a cosmetic-impregnated sheet having anisotropy, a face mask or the like that can easily extend only in a predetermined direction, for example, a direction corresponding to the lateral direction of the face is also expected. .

10, 10 ', 10 ": cosmetic impregnated sheet 12: fiber layer (hydrophilic fiber layer)
13: Adhesive layer 14, 14a-c, 14a'-c ', 14a "-c", 14a ""-c "": Hydrophobic film 15: Decoration layer 16, 16', 16 " : Opening 16a: Edge 18: Thermocompression bonding part 50: Face mask 60: Partial face mask 100: Thermocompression bonding apparatus 102, 104: Temporary pressure bonding roll 106: Roll 108: Heating calender roll (heated embossing roll)
108a: Needle 110: Partial thermocompression laminate

Claims (8)

A cosmetic-impregnated sheet obtained by laminating a fiber layer comprising a fiber material impregnated with a cosmetic and a hydrophobic film that prevents the cosmetic from transpiration,
A thermocompression bonding part for partially laminating the fiber layer and the hydrophobic film is provided by a heated needle-like material, and the hydrophobic film in the thermocompression bonding part faces the fiber layer. opening me Oh provided that penetrates Te,
The hole diameter of the opening is a value within a range of 0.05 to 3 mm ,
A cosmetic-impregnated sheet , wherein the hydrophobic film is a polyethylene terephthalate resin film having a thickness of 0.1 to 15 µm . The cosmetic material-impregnated sheet according to claim 1, wherein the number density of the openings is set to a value within a range of ² to 70 / cm2. The cosmetic impregnated sheet according to claim 1 or 2, wherein a contact angle of the hydrophobic film measured according to JIS K 6768 is set to 60 ° or more. The cosmetic material-impregnated sheet according to any one of claims 1 to 3 , wherein the fiber material is cotton, rayon, or cupra. Cosmetic-impregnated sheet according to any one of claims 1 to 4, characterized in that a value within the range of basis weight of 10 to 300 g / m ² of said fibrous layer. The cosmetic according to any one of claims 1 to 5 , wherein the cosmetic impregnated sheet is a face mask for supplying the cosmetic impregnated in the fiber layer to the face. Impregnated sheet. A method for producing a cosmetic impregnated sheet obtained by laminating a fiber layer comprising a fiber material impregnated with a cosmetic and a hydrophobic film that prevents the cosmetic from transpiration,
Preparing the hydrophobic layer, which is a polyethylene terephthalate resin film having a thickness of 0.1 to 15 μm, and the fiber layer;
In a state where the fiber layer and the hydrophobic film are laminated, the fibers are partially thermocompression-bonded with a heated needle-like material to form a thermocompression bonding portion, and at the same time, the fibers are applied to the hydrophobic film in the thermocompression bonding portion. A step of providing an opening having a hole diameter penetrating toward the layer in a range of 0.05 to 3 mm ;
The manufacturing method of the cosmetics impregnation sheet | seat characterized by including this. The method for producing a cosmetic-impregnated sheet according to claim 7 , wherein the needle-like material is heated and the heating temperature of the needle-like material is set to a value in the range of 200 to 350 ° C.