JP2006089382A - Sheetlike adhesive package, method for producing the same and method for using the package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheetlike adhesive package that provides a hydrophilic medium in an amount necessary for removing cornoid lamella and is suitable for preservation. <P>SOLUTION: The sheetlike adhesive package has a hydrophilic medium-containing adhesive layer on one side of a substrate and comprises the other side of the substrate covered with a heat-fusible external layer. The laminate is bent by laying the hydrophilic medium-containing adhesive layer as an internal side face. The edge of the external layer is sealed by heat fusing to form a bag. The hydrophilic medium-containing adhesive layer is stored in the inside of the bag. The substrate is preferably composed of a heat-fusible nonwoven fabric. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sheet-like pressure-sensitive adhesive package, a method for producing the same, and a method for using the same.

  2. Description of the Related Art In recent years, various types of cosmetic materials suitable for removal of skin plugs, such as peel-off type cosmetic packs and sheet-type cosmetic packs, are known. As a peel-off type cosmetic pack, a mainstream type is a type in which a film-forming agent is applied to the skin surface, sufficiently dried over a certain period of time to form a film, and then the film is peeled off from the skin. Known product forms of peel-off type cosmetic packs are in the form of jelly, paste and powder, but these peel-off type cosmetic packs are difficult to apply evenly on the skin surface. However, when peeled off from the skin, the film was torn and it took time to remove the peel, and it took a long time to form a sufficiently dry film.

  On the other hand, as a sheet-like cosmetic pack, a film-forming agent previously formed into a sheet shape is known. Sheet-type cosmetic packs have a uniform coating compared to peel-off type cosmetic packs, and can be easily peeled off after drying. It is necessary to apply a hydrophilic medium such as alcohol. In order to sufficiently remove the square plug, a predetermined amount of the sheet-like film forming agent is dissolved or moistened with a predetermined hydrophilic medium, and left for about 10 to 30 minutes to leave moisture, etc. It is necessary to peel off after evaporating. The patch layer dissolved or moistened with a hydrophilic medium such as water comes into contact with the square plugs present in the pores, and then dried to integrate with the square plugs. By removing the sticking layer, the square plugs are also removed. It can be done. However, the application amount of the hydrophilic medium varies depending on the user, and it is difficult to apply the necessary appropriate amount of the hydrophilic medium to the skin. When the coating amount of the hydrophilic medium is too small, the sheet-like film forming agent is not sufficiently dissolved, and as a result, the square plug is not sufficiently removed. In addition, when the amount of hydrophilic medium applied is too large, the sheet-form film forming agent gets wet more than necessary and can be peeled off, that is, the sheet-form film forming agent can be dried and peeled off. There was a problem that it took too long to reach a proper state.

JP-A-8-109119 Japanese Patent Laid-Open No. 10-59820

  The present invention has been made in view of the above-described problems, and the object of the present invention is to provide a sheet-like material that can provide a hydrophilic medium in an amount necessary for removal of square plugs and is suitable for storage. It is in providing the adhesive material package, its manufacturing method, and the usage method of this package.

  The sheet-like pressure-sensitive adhesive package of the present invention has a hydrophilic medium-adhesive layer on one side of a support, and the other side of the support is covered with a heat-weldable outer layer. Bend with the adhesive medium adhesive layer as the inner surface, the edge portion of the outer layer is sealed by thermal welding to form a bag, and the hydrophilic medium adhesive layer is accommodated inside the bag It is characterized by.

  Here, the support may be made of a heat-weldable nonwoven fabric.

In the present invention, the hydrophilic medium-containing adhesive layer can contain a water-soluble polymer and a plasticizer compatible with the water-soluble polymer.
The water-soluble polymer may be at least one selected from the group consisting of polyvinylpyrrolidone and vinylpyrrolidone-vinyl acetate copolymer.

In the present invention, the hydrophilic medium-adhesive layer may further contain a filler.
The outer layer may be made of a heat-weldable plastic.

In the present invention, the hydrophilic medium adhesive layer may be marked at the center position of the line target.
Moreover, the said mark can form a part of upper end edge of the said hydrophilic medium adhesive layer in the shape of a mountain.

  In the sheet-like pressure-sensitive adhesive package of the present invention, a center line may be printed on the outer layer surface.

  In the method for producing a sheet-like pressure-sensitive adhesive package of the present invention, after laminating an outer layer made of a heat-weldable plastic material and a support, and forming a hydrophilic medium pressure-sensitive adhesive layer on the surface of the support, The bag is formed by folding in two so that the hydrophilic medium-adhesive layer faces inside, and heat-sealing along the periphery of the hydrophilic medium-adhesive layer.

  ADVANTAGE OF THE INVENTION According to this invention, the sheet-like adhesive material package which can provide the quantity of a hydrophilic medium suitable for removing a square plug from skin, this manufacturing method, and this sheet-like adhesive material package are used. A method can be provided.

BEST MODE FOR CARRYING OUT THE INVENTION

  The sheet-like pressure-sensitive adhesive package of the present invention has a hydrophilic medium-adhesive layer on one side of a support, and the other side of the support is covered with a heat-weldable outer layer. The hydrophilic medium adhesive layer is bent as an inner surface, and the edge portion of the outer layer is sealed by heat welding to form a bag, and the hydrophilic medium adhesive layer is accommodated in the bag.

  Below, embodiment of the sheet-like adhesive material packaging body of this invention is described in detail, referring drawings. In the drawings, components having the same function are denoted by the same reference numerals and description thereof is omitted.

  FIG. 1 is a view showing a sheet-like pressure-sensitive adhesive package according to the first embodiment of the present invention, FIG. 1 (a) is a plan view thereof, and FIG. 1 (b) is a view of FIG. It is sectional drawing when cut | disconnecting in the position of line AA 'in a), (c) of FIG. 1 is a top view of the state which opened the sheet-like adhesive material package of (a) of FIG. It is the figure seen from the property medium adhesive layer side.

  In FIG. 1A, the heat-weldable outer layer 1 has an upper end edge and a lower end edge that are substantially parallel, and the lower end edge is designed to be longer than the upper end edge. The right edge extends upward from the lower edge substantially vertically, and is formed so as to draw a curve at the top. The heat-weldable outer layer 1 is heat-welded and sealed at an edge portion, that is, a position slightly inside the edge (heat-welded portion 2) to form a bag. The thermally welded interior is hermetically sealed, and a hydrophilic medium-containing adhesive layer is sealed inside as will be described later.

  In FIG. 1B, a support 3 such as a non-woven fabric that can be heat-welded is laminated on one surface of the heat-weldable outer layer 1, and the hydrophilic medium-adhesive layer 4 is laminated on the surface of the support 3. Is provided. FIG. 1 (b) shows that these three-layer laminates are such that the hydrophilic medium adhesive layer 4 folded in half is in contact with each other and the hydrophilic medium adhesive layer 4 is on the inner side and the outer layer 1 is on the outer side. It is in a bent state. The hydrophilic medium-containing adhesive layer 4 may be provided so as to cover the entire surface of the support 3 or may be partially provided. However, even when it is provided on the entire surface, it is necessary to have a margin so that the supports or the outer layers can be in contact with each other at the heat-welded portion. In addition, the space 5 may be formed in the bent state as shown in FIG.

  In the present invention, the outer layer 1 needs to be made of a material that can be sealed by heat welding, but is not particularly limited as long as it has this function. For example, a heat-weldable plastic or the like can be preferably used. Specific examples include films made of polyethylene, polypropylene, polyester, polyurethane, ethylene-vinyl acetate copolymer, and the like. In order to maintain the amount of water or other hydrophilic medium contained in the hydrophilic medium adhesive layer enclosed in the sheet-like adhesive material package until the time of use, the outer layer is moisture permeable. It is preferably made of a low material, and most preferably has a moisture permeability of zero. The thickness of the outer layer is not particularly limited as long as it can exhibit a function as a package containing the sheet-like pressure-sensitive adhesive material. For example, in the case of a plastic sheet, it may be 50 μm to 200 μm. preferable.

In the present invention, the support 3 is preferably a non-woven fabric base material, for example, a single base material of heat-weldable hydrophobic fibers such as polyester fibers such as polyethylene and polyethylene terephthalate, polyurethane fibers such as polyurethane, or the like. A mixture of a hydrophobic fiber and a hydrophilic fiber such as cotton, rayon, or pulp, or a laminate is preferably used. In the sheet-like pressure-sensitive adhesive package as shown in FIG. 1, the support 3 is preferably detachable from the heat-welded portion 2 after being sealed by heat-welding. For example, sealing means and conditions by heat-welding In view of the above, it is preferable to freely combine or design appropriate materials. The support 3 is preferably thick enough to hold the hydrophilic medium-adhesive layer. Furthermore, when the sheet-like adhesive material package is peel-opened and adhered to the skin or the like, it follows the skin. It is preferable that the thickness be such that the properties can be exhibited. For example, when it consists of a nonwoven fabric base material, it is preferable that a fabric weight is 20-80 g / m < ² >.

  In the present invention, the hydrophilic medium-containing adhesive layer 4 is formed using, for example, a wet adhesive composition. Here, the wet pressure-sensitive adhesive composition contains a water-soluble polymer and a plasticizer that is compatible with the water-soluble polymer (for example, a liquid plasticizer), and further contains a pigment, a filler, or the like, if necessary. contains.

  The water-soluble polymer used in the present invention exhibits adhesiveness due to the presence of water or a hydrophilic medium. Preferred examples of the water-soluble polymer suitable for removing horn plugs include at least one selected from the group consisting of polyvinyl pyrrolidone and vinyl pyrrolidone-vinyl acetate copolymers. Further, if the molecular weight of the water-soluble polymer is too large, the adhesive layer formed using the wet adhesive composition may not have sufficient adhesive force due to the presence of water or a hydrophilic medium, and the molecular weight is too small. And the mechanical strength of the adhesive layer may be reduced, and after sticking, a part of the adhesive layer may remain as a residue when peeling and removing the dried sheet-like adhesive material package from the application site, These water-soluble polymers preferably have an average molecular weight of 5,000 to 5,000,000, particularly preferably 20,000 to 1,200,000.

  From the viewpoint of shortening the drying time for evaporating water used for exerting adhesiveness, and making it possible to further alleviate the pain at the time of peeling, a low molecular weight water-soluble polymer, that is, A water-soluble polymer having a weight average molecular weight of less than 700,000, preferably 5,000 to 300,000 and a water-soluble polymer having a high molecular weight, that is, a water-soluble polymer having a weight average molecular weight of 700,000 or more, preferably 1,000,000 to 5,000,000. It is more preferable to use a mixture with a polymer. When a high molecular weight water-soluble polymer and a low molecular weight water-soluble polymer are mixed and used, the blending ratio is preferably appropriately determined according to the molecular weight of the water-soluble polymer used, the purpose of use, etc. For example, the ratio of the high-molecular-weight water-soluble polymer to the low-molecular-weight water-soluble polymer is preferably about 5:95 to 95: 5, more preferably 20:80 to 70 in terms of weight ratio. : 30. From the viewpoints of the removal efficiency of horn plugs and the reduction of pain given to the skin when peeling off, it is preferable to increase the blending ratio of the low molecular weight water-soluble polymer.

  As the liquid plasticizer, a material that is compatible with a water-soluble polymer and dissolves to exhibit a plasticizing effect is used. For example, ethylene glycol, diethylene glycol, triethylene glycol, hexamethylene glycol, other polyethylene glycols, propylene glycol, dipropylene glycol, other polypropylene glycols, glycerin, diglycerin, other polyglycerins, 1,3-butylene glycol And butylene glycols such as 1,4-butylene glycol, sugar alcohols such as sorbitol and mannitol, glycerides such as lanolin, lecithin and olive oil. These may use only 1 type or may use 2 or more types together.

  If the amount of the liquid plasticizer used is excessive, the mechanical strength of the formed adhesive layer after being wet and dried tends to be poor. It tends to be difficult to fit. Therefore, the liquid plasticizer is preferably used in the range of 1 to 75 parts by weight and more preferably in the range of 5 to 50 parts by weight with respect to 100 parts by weight of the water-soluble polymer.

  The wet pressure-sensitive adhesive composition of the present invention preferably further contains a filler. As the filler, various inorganic fillers or organic fillers that are hardly soluble or insoluble in the mixture of the water-soluble polymer and the liquid plasticizer are used, and it is preferable to use the inorganic filler. Examples of the inorganic filler include inorganic oxides or composite oxides such as silica, alumina, zinc oxide, titanium oxide, talc, clay, kaolin, and glass, barium sulfate, calcium carbonate, hydroxyapatite, ceramics, carbon, and others. Inorganic compounds, metals, metals such as alloys, and the like are exemplified. Examples of the organic filler include fiber-forming organic polymers such as cellulose, silk, polyester, and polyolefin, polyacrylic acid ester, polymethacrylic acid ester, styrene, and other organic polymers. These fillers may be used alone or in combination of two or more. In general, the filler used in the present invention is preferably in a powder state, and the shape thereof is not particularly limited, but it is preferably spherical in view of obtaining uniform dispersibility. Moreover, it is preferable that the average particle diameter is 0.01-50 micrometers, and it is especially preferable that it is 0.1-10 micrometers.

  By including a filler in the wet pressure-sensitive adhesive composition, the mechanical strength after the formed pressure-sensitive adhesive layer is wetted and dried can be improved. Moreover, the time required for drying required for drying after sticking can be shortened by containing a filler. Therefore, if a filler is contained, even if the thickness of the pressure-sensitive adhesive layer is large, it does not take a long time unlike conventional products. The reason why the time required for drying is shortened is presumed that the interface between the filler, the water-soluble polymer and the liquid plasticizer functions as a passage for moisture dissipation.

  The filler is preferably used in the range of 10 to 200 parts by weight, more preferably in the range of 25 to 100 parts by weight, with respect to 100 parts by weight of the water-soluble polymer. If the amount of the filler used is within the range of 10 to 200 parts by weight, the formed adhesive layer will not have a low flexibility and will not easily fit well to the application site, and the time required for drying The mechanical strength after the adhesive layer is pasted and dried can be improved.

  The wet adhesive composition can further contain a pigment or the like. For example, if a black pigment is contained, the removed square plug can be identified at a glance. Examples of the black pigment used in the present invention include carbon black, black iron oxide, black titanium oxide, and medicinal charcoal.

  The wet pressure-sensitive adhesive composition of the present invention can be applied to cosmetics, fragrances, antifungal agents, colorants, alcohols, drugs, ultraviolet absorbers, or other drugs and additives that are usually used as necessary. May be included within a range not impeding the effects of the present invention.

  A wet pressure-sensitive adhesive composition containing a water-soluble polymer and a liquid plasticizer and, if necessary, a pigment, a filler, and the like is used as a coating solution together with a hydrophilic medium such as ethyl alcohol and methyl alcohol, water, and the like. The release sheet that has been subjected to the release treatment or the support sheet is applied and dried to form a sheet-like hydrophilic medium-containing adhesive layer.

In the present invention, the thickness of the hydrophilic medium-containing adhesive layer is preferably 50 to 500 μm.
Further, the hydrophilic medium-adhesive layer needs to contain an appropriate amount of a hydrophilic medium, and preferably has a water content of 50% to 70%, for example, a water content of 60 to 65%. More preferably, the rate is

  In the embodiment shown in FIGS. 1A to 1C, the laminate having the outer layer 1, the support 3 and the hydrophilic medium-adhesive layer 4 in this order is folded in two from the outside of the outer layer 1. The heat welding part 2 is formed by heat welding. As a heat welding method, a method using a heat seal, a high frequency welder, or the like can be used, but the method is not limited thereto. In the embodiment shown in FIGS. 1A to 1C, the heat-welded portion 2 is sealed in a state in which the laminated portion of the outer layer 1 and the support 3 is fused and bonded to each other. Therefore, it is preferable that the heat-welded portion 2 can be easily peeled off by physical work such as peeling after heat-welding, and the material of the support 3 is selected or heat-welded so as to exhibit such a function. It is preferable to select this method or to set conditions such as the temperature and pressure of heat welding.

  In this embodiment, the bag body sealed by the heat welding part 2 is formed, and the hydrophilic medium adhesive layer 4 is enclosed in this bag body. If a material having low moisture permeability is used as the outer layer of the bag body, the bag body is hermetically sealed, so even if the hydrophilic medium adhesive layer 4 is impregnated with a hydrophilic medium such as water, the bag body It is possible to hold a proper amount of a hydrophilic medium such as water until use.

  In use, the tab-like portion 6 outside the heat-welded portion 2 of the bag is pushed up and down so as to peel off the melt-bonded supports to break the heat-welded portion 2. That is, the sheet-like adhesive material package can be peel-opened and spread, and this state is shown in FIG. The hydrophilic medium adhesive layer of the peel-opened sheet-like adhesive material package is applied to the application site. In FIG. 1 (c), the hydrophilic medium adhesive layer 4 has a mountain-shaped mark 7 formed substantially at the center of the upper edge. If the chevron mark 7 is aligned so as to be positioned at the center, the center of the sheet-like pressure-sensitive adhesive package can be easily attached to the nose. In addition, valley marks 8 are provided on both sides of the chevron mark 7 on the upper edge at symmetrical positions with respect to the center line, and the design is made in consideration of facial irregularities such as the height of the nose. Yes. In general, even if it has been cut in advance to a shape suitable for affixing the nose, it is difficult to affix the center of the adhesive material to the nasal muscles and may be affixed to the left or right However, when the mark which becomes a standard for determining the sticking position is attached to the sheet-like pressure-sensitive adhesive package, positioning to the sticking site can be easily performed. The shape, size, etc. of the positioning mark are not limited to those shown here, and may be, for example, a slit, a wedge-shaped notch, etc. It is not limited to the edge and may be a lower edge.

  In the present invention, the support 3 may not be laminated so as to cover the entire surface of the outer layer 1. That is, by laminating the support body on the inner side of the region of the heat-welded portion 2 of the outer layer 1, the outer layers that come into contact at the edges when folded in half can be heat-welded. Thus, if a support body does not intervene in a heat welding part, the material which cannot be heat-welded as a material which comprises the support body 3 can also be used. A cross-sectional view of the sheet-like pressure-sensitive adhesive package having such a configuration is shown in FIG. In FIG. 2, a heat welded portion 2 is a portion where an outer layer 1 that is folded in two is welded, and a support 3 is housed in a bag body that is sealed by the heat welded portion 2. Between the support body 3 and the heat welding part 2, you may have space 5 '. The hydrophilic medium adhesive layer 4 is formed on the surface of the support 3, and a space 5 may be formed between the hydrophilic medium adhesive layer 4 and the support 3. In the sheet-like pressure-sensitive adhesive package shown in FIG. 2, it is preferable that the outer layer 1 is peelable after heat welding. For example, a weldable and re-peelable material is sandwiched between the outer layers in contact with each other, A material that imparts peelability may be applied, or a surface shape that allows peeling may be applied to the contact portion of the outer layer, or re-applying by appropriately setting the means and conditions for thermal welding. A peeling function may be imparted.

  In the sheet-like pressure-sensitive adhesive package shown in FIG. 2, if the surface to be bonded to the outer layer support is peeled off, the support having the hydrophilic medium pressure-sensitive adhesive layer is peeled off from the outer layer after use. Can be attached to the skin or the like. When using a sheet-like pressure-sensitive adhesive package in this form, the shape of the support should be designed so as to cover the entire face, for example, by appropriately designing the eyes and nose to be through holes. Is also possible. Further, if a moisture-permeable material is used as a support for the sheet-like adhesive material package, skin respiration is not hindered. Furthermore, if a nutrient component is included in the hydrophilic medium-containing adhesive layer, it can be used as a decorative sheet that moisturizes the face.

  The sheet-like pressure-sensitive adhesive package of the present invention is not limited to the above-described shape and the like, and can be designed in various shapes in consideration of the application site and the like. That is, it can be used not only for the nose, forehead, chin, entire face, but also for other body parts such as elbows and knees, and the shape and the like are preferably designed as appropriate.

  In the sheet-like pressure-sensitive adhesive package of the present invention, for example, a wet pressure-sensitive adhesive composition adjusted to an appropriate water content is applied to an appropriate pattern on a support surface of a laminate of a support and an outer layer, and thereafter It can be formed by folding it in half and thermally welding it along the edge.

Since the sheet-like pressure-sensitive adhesive package of the present invention is stored in a state in which a necessary amount of a hydrophilic medium is contained, it is not necessary to previously wet the application site with water or the like. A material packaging body can be affixed to a sticking site. Moreover, since the required amount of hydrophilic medium is contained in the sheet-like pressure-sensitive adhesive package of the present invention, the optimum effect for the application is effectively exhibited without causing individual differences among users.

  The present invention will be described more specifically with reference to the following examples. However, the present invention is not limited to these examples, and various applications are possible without departing from the technical idea of the present invention.

Example 1
As the water-soluble polymer, a mixture of polyvinyl pyrrolidone having a weight average molecular weight of 1,200,000 and polyvinyl pyrrolidone having a weight average molecular weight of 450,000 in a weight ratio of 40:60 was used. With respect to 100 parts by weight of this polyvinylpyrrolidone, 60 parts by weight of anhydrous silicic acid and 15 parts by weight of glycerin were placed in 143 parts by weight of purified water, stirred, dissolved and dispersed to prepare an aqueous solution in which the wet adhesive composition was dispersed.

The aqueous solution in which the obtained wet adhesive composition is dispersed is predetermined so as to be 110 g / m ² on a spunlace polyester nonwoven fabric of a laminated sheet of a polyester film and a spunlace polyester nonwoven fabric (basis weight 40 g / m ² ). A sheet-like pressure-sensitive adhesive material was produced by applying a pattern to the shape. However, the hydrophilic medium pressure-sensitive adhesive layer using the wet pressure-sensitive adhesive composition was not provided on the edge portion of the sheet-like pressure-sensitive adhesive material. This sheet-like pressure-sensitive adhesive was folded in half, and the periphery thereof was heat-sealed from the outer layer side to form a bag, thereby producing a sheet-like pressure-sensitive adhesive package as shown in FIG. The hydrophilic medium adhesive layer is hermetically stored inside the bag. The water content of the hydrophilic medium-adhesive layer in the obtained sheet-like adhesive material package was about 55% by weight.

In the obtained sheet-like pressure-sensitive adhesive package, the hydrophilic medium-adhesive layer is hermetically stored inside, so that a hydrophilic medium such as water does not leak out or exude during storage. It was.
Moreover, it was possible to easily peel open the grip portion of the edge of the sheet-like pressure-sensitive adhesive package by hand during use. The outer layer of this peel-opened sheet-like adhesive material package was peeled and removed, and the chevron mark of the hydrophilic medium-containing adhesive layer was placed near the base of the nose as a guide for the application position. It was allowed to stand for 10 to 20 minutes after the application, and after the sheet-like adhesive material package was dried, it was peeled off and the hydrophilic medium-containing adhesive layer was observed with the naked eye, and it was confirmed that the square plugs were removed. According to the present invention, a hydrophilic medium in an amount suitable for removal of square plugs is included in the sheet-like pressure-sensitive adhesive package in advance, and this amount is stored until use. A hydrophilic medium-containing adhesive layer containing a functional medium can be adhered to the skin, and square plugs can be effectively removed.

  The sheet-like pressure-sensitive adhesive package of the present invention can be used in the field of facial sheet-like pressure-sensitive adhesive materials used for removal of square plugs, but other uses such as nutritional component replenishment, moisturizing component replenishment, etc. It can be used as a sheet-like adhesive material used in the above. It can also be used in the field of adhesives that are applied to human skin such as knees, elbows, and heels other than the face.

It is a figure which shows the sheet-like adhesive material package which concerns on the 1st Embodiment of this invention, (a) is the top view, (b) is cut | disconnected in the position of line AA 'in (a) of FIG. A cross-sectional view when assumed, (c) is a plan view of the opened state after peel-opening. It is sectional drawing which shows the sheet-like adhesive material package which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer layer 2 Heat welding part 3 Support body 4 Hydrophilic medium adhesive layer 5, 5 'Space 6 Knob-shaped part 7 Mountain-shaped mark 8 Valley-shaped mark

Claims (10)

  A hydrophilic medium-adhesive layer on one side of the support, the other side of the support is covered with a heat-weldable outer layer, and the hydrophilic medium-adhesive layer is bent as an inner surface; A sheet-like pressure-sensitive adhesive packaging body, wherein an edge portion of the outer layer is sealed by thermal welding to form a bag body, and the hydrophilic medium-containing adhesive layer is accommodated in the bag body.   The sheet-like pressure-sensitive adhesive package according to claim 1, wherein the support is made of a heat-weldable nonwoven fabric.   The sheet-like pressure-sensitive adhesive package according to claim 1 or 2, wherein the hydrophilic medium adhesive layer contains a water-soluble polymer and a plasticizer compatible with the water-soluble polymer. .   The wet-adhesive composition according to claim 3, wherein the water-soluble polymer is at least one selected from the group consisting of polyvinylpyrrolidone and vinylpyrrolidone-vinyl acetate copolymer.   The sheet-like pressure-sensitive adhesive package according to claim 3 or 4, wherein the hydrophilic medium pressure-sensitive adhesive layer further contains a filler.   The sheet-like pressure-sensitive adhesive package according to any one of claims 1 to 5, wherein the outer layer is made of a heat-weldable plastic.   The sheet-like pressure-sensitive adhesive package according to any one of claims 1 to 6, wherein the hydrophilic medium pressure-sensitive adhesive layer is marked at a center position of a line target.   The sheet-like pressure-sensitive adhesive package according to any one of claims 1 to 7, wherein the mark is formed by forming a part of an upper end edge of the hydrophilic medium-adhesive layer in a mountain shape.   The sheet-like adhesive material packaging body according to any one of claims 1 to 8, wherein a center line is printed on the outer layer surface. After laminating an outer layer made of a heat-weldable plastic material and a support, and forming a hydrophilic medium-adhesive layer on the surface of the support, 2 so that the hydrophilic medium-adhesive layer faces inside A method for producing a sheet-like pressure-sensitive adhesive package, wherein the bag is formed by being folded and sealed by thermal welding along the periphery of the hydrophilic medium-containing pressure-sensitive adhesive layer.

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