JPH0665397A - Dispersion sheet or tape, aerobic and/or hydrophilic self-adhesive sheet or tape, aerobic and/or hydrophilic resin film sheet or tape, and production thereof - Google Patents

Abstract

PURPOSE:To obtain an aerobic and/or hydrophilic self-adhesive sheet or tape and resin film sheet of tape suitable for, e.g. a plaster for the skin by dispersing granules formed from an aerobic and/or hydrophilic substance, such as a shell, in a self-adhesive layer or a resin film. CONSTITUTION:An aerobic and/or hydrophilic self-adhesive sheet 10 is made by forming a self-adhesive layer, i.e., a dispersion sheet 9 having dispersed therein a number of granules 13 formed from the aerobic and/or hydrophilic shell of, e.g. cereals or nuts on one side of a gas-permeable base material 11. One or more granules 13 serve as a bridge between two sides of the selfadhesive layer so that the granules 13 are exposed on both sides thereof. Accordingly, the granules 13 exposed on one side absorb the moisture in the skin, and the moisture passes through the granules 13 exposed on the other side and the gas-permeable base material 11 and exhales into to the air. The interstices 14 extending through the self-adhesive layer in the direction of the thickness enhance the gas permeability. The granules 13 are dispersed in a similar manner in a resin film to give a sheet having a similar performance.

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention is applied or mixed with an adhesive bandage, a plaster, a surgical skin coating agent, a skin adhesive agent, a disinfectant having a medicinal effect by being absorbed from the skin of the human body, an antiphlogistic agent and the like. Water resistance used for patches and the like, a dispersion sheet or tape having excellent hydrophilicity and / or hydrophilicity, and an hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape, and an hydrophilic and / or hydrophilic resin film sheet or tape, Furthermore, the present invention relates to the above-mentioned hydrophilic and / or hydrophilic adhesive sheet or tape and the method for producing the hydrophilic and / or hydrophilic resin film sheet or tape. In addition, in the present invention, the hydrophilicity includes the inhalation property and the air permeability, and the hydrophilic property includes the water absorption property and the water permeability property.

[0002]

2. Description of the Related Art Currently, a breathable base material such as a non-woven fabric or a cloth is used as a surface base material of an adhesive sheet or tape such as a bandage, and further, it is an amorphous vinyl chloride which is stretchable according to the movement of the human body. A film or polyurethane film is used. The former breathable substrate was simply and uniformly coated with an adhesive or a drug (hereinafter, in the present specification, not only the drug itself but also a mixture of the drug and the adhesive is referred to as an "adhesive"). The adhesive tape does not have good air permeability, and the latter adhesive tape coated with an adhesive on the surface substrate of vinyl chloride film or polyurethane film has excellent water resistance in the normal state, but it does not have good air permeability and water absorption. Lack.

When the above-mentioned non-breathable pressure-sensitive adhesive tape is stuck on the skin for a long time, the pressure-sensitive adhesive tape impedes the breathing of the skin and the diffusion of water, which is the main cause of the whitening, inflammation, rashes, itching, It caused inflammation such as eczema.

Further, when the adhesive tape attached to the skin of the human body is wet or soaked in water, the film having a high affinity for absorbing water is apt to be embrittled to the whole film, and the adhesive tape requires water resistance. However, it was not usable as a surface base material.

For this reason, it is necessary that the pressure-sensitive adhesive tape particularly for surgical medical treatment or insurance hygiene has good air permeability, and various pressure-sensitive adhesive tapes and manufacturing methods thereof have been conventionally developed.

Hereinafter, some specific examples of the conventional adhesive tape and the manufacturing method thereof will be described.

(1) A pressure-sensitive adhesive is applied to a breathable substrate such as a non-woven fabric or gauze by a printing method such as a gravure roll method, an offset printing method, a silk screen printing method or the like in a number of rows or a mesh.

(2) When the pressure-sensitive adhesive is impregnated with water or a foaming agent, and the pressure-sensitive adhesive is applied to a breathable substrate and dried, the water or the foaming agent evaporates and the pressure-sensitive adhesive shrinks, A large number of pores are generated in the adhesive layer. (JP-A-48-37988)
(3) When the pressure-sensitive adhesive is applied to the air-permeable base material by a roll coating method such as a reverse coater method, the clearance between rolls is adjusted or the speed of each roll is changed so that the amount of the adhesive applied may be faint. That is, the adhesive is mottled on the breathable substrate. (For example, Japanese Examined Patent Publication No. 63-40545) (4) A large number of holes having a diameter of 1.5 to 2 mm are formed in a water resistant film such as vinyl chloride or polyurethane having water resistance,
An adhesive is applied to this water resistant film.

[0009]

In the printing by the roll method such as the gravure roll method described in the section (1) of the prior art, the pressure-sensitive adhesive that is printed due to the pressure applied by the roll is crushed to cause the above-mentioned adhesion. There is a problem that good air permeability cannot be obtained because the surface of the air permeable base material between the rows of agents or in the mesh is blocked with the adhesive. Further, the silk screen printing method has a problem in that continuous production cannot be performed and the cost becomes high.

Further, in the method described in the item (2) of the prior art, the pores formed by the foaming agent are microscopic pores in the unit of micron, and the pressure-sensitive adhesive is inevitably fluidized in the manufacturing process.
There has been a problem that the pores are closed in a short time and the air permeability is lost. In addition, when the water content in the pressure-sensitive adhesive is increased in order to increase the air permeability, the pressure-sensitive adhesive becomes a gel state, which makes it difficult to handle in manufacturing and causes a problem that the pressure-sensitive adhesive strength is lowered.

Further, in the method described in the section (3) of the prior art, the adhesive cannot be uniformly applied to the substrate, and there is no possibility of repeating the adhesive coating on the surface of the substrate constantly. However, there is a problem in that the adhesive is not applied uniformly, the efficacy of the base material surface varies, and there are many defective parts such as non-breathable parts.

Further, the method described in the item (4) of the prior art has a problem that it is not a waterproof adhesive tape even though it is provided with some breathability.

As described above, the conventional adhesive tape and its manufacturing method have many problems such as lack of repeatability of uniform quality, high cost and insufficient air permeability. There is.

The present invention was developed to solve the above problems, and is a dispersion sheet or tape excellent in water resistance, hydrophilicity and / or hydrophilicity, and hydrophilic and / or hydrophilic adhesive sheet or tape. And a hydrophilic and / or hydrophilic resin film sheet or tape, and further, the hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape, and the hydrophilic and / or hydrophilic resin film sheet or tape in an easily and stable state. It is intended to provide a method that can be manufactured by.

[0015]

In order to achieve the above-mentioned object, in the dispersion sheet or tape of the present invention, a large number of granules 13 formed by granulating a substance having hydrophilicity and / or hydrophilicity are dispersed. It was done.

Further, in the hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape of the present invention, the pressure-sensitive adhesive layer in which a large number of the hydrophilic and / or hydrophilic particles 13 are dispersed in the dispersion sheet or tape is breathable. It is formed on one surface of the base material.

Further, in the hydrophilic or hydrophilic resin film sheet or tape of the present invention, a large number of the hydrophilic and / or hydrophilic particles 13 in the dispersion sheet or tape are dispersed in a resin film. Is.

The hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape is one in which both surfaces of the pressure-sensitive adhesive layer are crosslinked by one or a plurality of particles 13 and exposed on both surfaces of the pressure-sensitive adhesive layer.

The aerophilic and / or hydrophilic resin film sheet or tape is formed by cross-linking both sides of the resin film with one or a plurality of granules 13 and exposing the resin film on both sides.

Further, the hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape, and the hydrophilic and / or hydrophilic resin film sheet or tape have a pressure-sensitive adhesive layer at the interface between the particles 13 and the pressure-sensitive adhesive 12 or the resin film. Alternatively, the gap 14 penetrating in the thickness direction of the resin film can be formed.

Further, the pressure-sensitive adhesive layer or the resin film can be formed with a thickness equal to or smaller than the size of the granules 13.

The granules 13 are formed by granulating shells having aerophilic and / or hydrophilic properties such as grains and nuts.

In addition, the particle size of one or more of the particles 13 is 1
The pressure-sensitive adhesive layer or the resin film may be formed to a thickness of 7 to 200 μm and a thickness of 10 to 120 μm.

Further, a large number of linear grooves 16 reaching the air-permeable base material 11 may be intermittently formed in the pressure-sensitive adhesive layer in the same direction to an arbitrary length.

The hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape may be replaced by the breathable base material 11,
Aerophilic and / or hydrophilic resin film sheets or tapes can be used.

In the method for producing a breathable pressure-sensitive adhesive sheet or tape of the present invention, the production steps are as follows.

(1) Grain shells of grains such as rice, wheat, peanuts, etc., which are formed into granules having a particle size of 17 to 200 μ, are soaked in water or alcohol by immersing them in water or alcohol.

(2) Next, a mixed solution is prepared in which a large number of the water-swelled particles 13 are uniformly dispersed in the solvent-type pressure-sensitive adhesive 12.

As the solventless adhesive 12 such as hot melt, dried granules 13 are used.

(3) On the release surface of the roll-shaped release paper 15,
By using various coating methods such as a roll coater and a die coater, the solid content of the mixed solution of the pressure-sensitive adhesive 12 and the granules 13 of the above (2) is applied in a uniform thickness of 10 to 120 μm.

In order to cross-link between both surfaces of the pressure-sensitive adhesive layer with one or a plurality of granules 13 to expose both surfaces of the pressure-sensitive adhesive layer,
It is desirable that the thickness of the pressure-sensitive adhesive layer is 10 to 120 μ while the size of the particles 13 is 17 to 200 μ.

Further, the head clearance of the pressure sensitive adhesive coating machine is adjusted so as to cause a difference between the flow resistance of the pressure sensitive adhesive 12 and the flow resistance of the granules 13, and the air permeable base is set by the granules 13 retained at the head clearance. Streak-shaped linear groove reaching the material 1
A large number of 6 are intermittently and randomly generated in the pressure-sensitive adhesive layer.

(4) Next, the pressure-sensitive adhesive 12 and the pressure-sensitive adhesive layer of the granules 13 are dried. For example, when the solvent-type pressure-sensitive adhesive 12 is dried with hot air, the organic solvent of the pressure-sensitive adhesive 12 is vaporized faster than the moisture in the granules 13 to shrink-form the pressure-sensitive adhesive 12, and then the moisture in the granules 13 is evaporated. A minute gap 14 penetrating in the thickness direction of the pressure-sensitive adhesive layer is formed at the interface between the particles 13 and the pressure-sensitive adhesive 12.

(5) Next, the pressure-sensitive adhesive layer on the release paper 15 is attached to the breathable substrate 11 and transferred.

In the above manufacturing process of the breathable pressure-sensitive adhesive sheet 10, the pressure-sensitive adhesive 12 and the granules 13 are provided on the breathable base material 11.
The breathable pressure-sensitive adhesive sheet 10 by directly applying the solid solution of the mixed solution of
Then, the release paper 15 can be attached to the pressure-sensitive adhesive layer of the breathable pressure-sensitive adhesive sheet 10.

[0036]

When the dispersion pressure sensitive adhesive sheet 10 which is an aerophilic and / or hydrophilic pressure sensitive adhesive sheet constructed as described above is attached to the skin of a human body, one or a plurality of granules 1 are provided on both sides of the pressure sensitive adhesive layer.
Since it is cross-linked at 3, the moisture of the skin is absorbed by the granules 13 exposed on one side of the adhesive layer in contact with the skin, and the moisture is absorbed by the one or more granules 13 and swells with water,
Next, the moisture of the granules 13 diffuses to the outside air through the breathable base material 11. In addition, since the gap 14 between one or a plurality of particles 13 cross-linking the pressure-sensitive adhesive layers and the pressure-sensitive adhesive 12 becomes a ventilation hole in the thickness direction of the pressure-sensitive adhesive layer, skin breathing is less likely to be disturbed.
Furthermore, when the breathable base material 11 and the pressure-sensitive adhesive 12 are stretched when the dispersion pressure-sensitive adhesive sheet 10 is pulled and attached to the skin, or when the skin moves, the dispersion pressure-sensitive adhesive sheet 10 becomes the pressure-sensitive adhesive 1
Since the gap 14 between the particles 2 and the granules 13 is widened, the air permeability is further increased.

In the dispersed resin film sheet 30 which is a hydrophilic and / or hydrophilic resin film sheet, the particles 13 in the film have the same function as the particles 13 in the pressure-sensitive adhesive layer of the dispersion pressure-sensitive adhesive sheet 10. Therefore, it is highly aerobic and / or hydrophilic. Further, when the dispersed resin film sheet 30 is immersed in water, the granules 13 in the film swell and expand, so that the gap 14 is closed and the water permeability of the dispersed resin film sheet 30 is stopped. Therefore, the dispersion pressure-sensitive adhesive sheet 10 using the dispersion resin film sheet 30 as a breathable substrate is usually a pressure-sensitive adhesive sheet that is rich in hydrophilicity and / or hydrophilicity when exposed to the outside air, but is breathable when immersed in water. Dispersed resin film sheet 30 as a base material
Protects the pressure-sensitive adhesive layer from water, resulting in a water-resistant pressure-sensitive adhesive sheet.

[0038]

[Examples] Hereinafter, in this example, a dispersion sheet, an aerophilic and / or a hydrophilic adhesive sheet, an aerophilic and / or a hydrophilic resin film sheet, and a method for producing the same will be described. The hydrophilic pressure-sensitive adhesive tape, the hydrophilic and / or hydrophilic resin film tape, and the method for producing the same will be omitted because they are processed into tape form from each of the above-mentioned sheets.

Dispersion sheet, and aerophilic and / or hydrophilic
Sexual adhesive sheet distributed sheets and will be described with reference to FIG. 1 for the parent gas resistance and or hydrophilic pressure-sensitive adhesive sheet, 10 is a parent gas resistance and or hydrophilic adhesive sheet serving dispersion adhesive sheet a is dispersed sheet breathable base material 11 9, (Hereinafter referred to as “dispersed pressure-sensitive adhesive sheet”) The breathable substrate 11 is a porous material having a large number of through holes such as a non-woven fabric, a woven fabric, a PVC film, a urethane film, an olefin film, and a rubber film. It includes a base material and other base materials having air permeability, and a pressure sensitive adhesive 12 such as a rubber or acrylic adhesive having a thickness of 10 to 120 μm is not fluidized all over one surface of the air permeable base material 11. After coating (solid content coating), a large number of particles 13 formed by granularly forming a substance having hydrophilicity and / or hydrophilicity are mixed and dispersed in the pressure-sensitive adhesive 12 to form a pressure-sensitive adhesive layer. (The pressure-sensitive adhesive layer forms the dispersion sheet 9.) The pressure-sensitive adhesive 12 is not limited to rubber type or acrylic type, and silicone type, polyvinyl type, polyurethane type, polyester type, etc. are used. It is to be noted that the aerophilic substance means a substance having an inhalation property and an air permeability, and the hydrophilic substance means a substance having a water absorption property and a water permeability property. Examples of the substance having a property include grain shells of rice, wheat, peanuts and the like (rice and wheat are rice husks), or dried shells of aerophilic and / or hydrophilic nuts having a particle size of 17 to 2
It is formed into a granular shape with a size of 00 μ, and the component of the granular body 13 composed of the shell has a hydrophilic group such as starch-based, cellulose-based, tannin-based, polysaccharide-based, lignin-based, etc. It is rich in sex. As shown in FIG. 1, the plurality of granules 13 are such that one granule 13 is dispersed in the pressure-sensitive adhesive layer alone, and a plurality of granules 13 are connected to each other between both surfaces of the pressure-sensitive adhesive layer. There are various types such as those exposed by cross-linking, and those in which one particle is exposed on both sides of the pressure-sensitive adhesive layer.

Further, at the interface between the particles 13 and the pressure-sensitive adhesive 12, a minute gap 14 of about 20 to 50 μ is formed which penetrates in the thickness direction of the pressure-sensitive adhesive layer. Therefore, the gap 14 formed at the interface between the particles 13 and the pressure-sensitive adhesive 12 in a state in which both surfaces of the pressure-sensitive adhesive layer are cross-linked by one or a plurality of particles 13 provides air permeability between both surfaces of the pressure-sensitive adhesive layer. Is.

Further, the pressure-sensitive adhesive layer has a structure shown in FIGS.
As shown in, the uncoated part of the adhesive 12 has a width of about 1.5 m.
The line-shaped grooves 16 that are long in a stripe shape and reach the breathable base material 11 are formed intermittently and randomly in the same direction. Since the linear groove 16 is a space communicating with both surfaces of the adhesive layer, it has an effect of providing air permeability between both surfaces of the adhesive layer. However, the dispersion sheet 9 and the dispersion adhesive sheet 1
No. 0 is sufficiently aerophilic and / or hydrophilic even if the linear groove 16 is not formed in the adhesive layer.

On the surface of the pressure-sensitive adhesive layer of the dispersion pressure-sensitive adhesive sheet 10, a release paper 15 made of a plastic film or paper coated with a release agent on one side or both sides is attached.

The dispersion sheet 9 can be used alone as a product by applying it to the release surface of the release paper 15 or other non-breathable substrate. The dispersion sheet 9 becomes an aerophilic and / or hydrophilic pressure-sensitive adhesive sheet that is less likely to cause inflammation even when attached to the skin when the large number of particles 13 are dispersed in the pressure-sensitive adhesive 12 such as a drug. When 13 is dispersed in a resin film, it is an extremely broadly applicable sheet such as a hydrophilic and / or hydrophilic resin film sheet.

Action of Stimulant and / or Hydrophilic Adhesive Sheet Next, the action of the dispersion adhesive sheet 10, which is an aerophilic and / or hydrophilic adhesive sheet, will be described.
No. 0 is cross-linked between both surfaces of the adhesive layer by one or a plurality of particles 13, so that when this dispersion adhesive sheet 13 is attached to human skin, it is exposed on the surface of the adhesive layer in contact with the skin. The granules 13 absorb the moisture of the skin, the moisture of the granules 13 is swollen by the whole of the one or more granules 13, and then the moisture of the granules 13 is in contact with the breathable base material 11. The particles 13 exposed on the surface of the layer diffuse to the outside air through the breathable base material 11. Furthermore, one or a plurality of granules 1 are provided between both surfaces of the adhesive layer.
Since the gap 14 between the granules 13 and the pressure-sensitive adhesive 12 that are cross-linked at 3 serves as a ventilation hole in the thickness direction of the pressure-sensitive adhesive layer, the dispersion pressure-sensitive adhesive sheet 10 is less likely to interfere with skin respiration, and thus skin inflammation is prevented. It is unlikely to occur. Furthermore, since the dispersed adhesive sheet 10 is actually pulled and attached to the skin, and the attached dispersed adhesive sheet 10 is further pulled with the movement of the skin, the breathable base material 11 and the adhesive of the dispersed adhesive sheet 10 Agent 12 is stretched, resulting in adhesive 1
Since the gap 14 between the interface between the particles 2 and the granules 13 is widened, the air permeability of the dispersion adhesive sheet 10 is further increased.

The dispersion sheet 9 and the particles 13 of the dispersion pressure-sensitive adhesive sheet 10 also serve as a bulking agent for the pressure-sensitive adhesive layer and contribute to the low cost of the dispersion pressure-sensitive adhesive sheet 30.

Aerophilic and / or hydrophilic resin film sheet
DOO Then, the same parts as the dispersion pressure-sensitive adhesive sheet 10 with reference to FIG. 4 for the parent gas resistance and or hydrophilic resin film sheet will be omitted. Reference numeral 32 is a resin film made of a plastic or rubber resin such as vinyl chloride or polyurethane, and 30 is a large number of granules 13 having the same hydrophilicity and / or hydrophilicity as the dispersion adhesive sheet 10 in the resin film 32. And a dispersed resin film sheet (hereinafter referred to as “dispersed resin film sheet”) which is an aerophilic and / or hydrophilic resin film sheet.

Then, the dispersed resin film sheet 30 is
As shown in FIG. 4, the dispersion state of the large number of particles 13 is similar to that of the dispersion pressure-sensitive adhesive sheet 10, and one particle 13 alone is dispersed in the resin film 32, and a plurality of particles 13 are present. Are exposed so as to bridge between both surfaces of the resin film 32, and one particle is exposed on both surfaces of the resin film 32.

Furthermore, at the interface between the particles 13 and the pressure-sensitive adhesive 12, which are in a state of being cross-linked with one or a plurality of particles 13 between the both surfaces of the resin film 32, the gap 14 of the dispersion pressure-sensitive adhesive sheet 10 described above.
Similarly to the above, the resin film 32 has breathability between both surfaces.
A minute gap 34 of about 0 to 50 μ is formed.

When the resin film 32 is a non-crystalline plastic film such as vinyl chloride or polyurethane, the dispersed resin film sheet 30 has a high water resistance so that it does not become brittle against water and is water resistant. The resulting film has elasticity.

Aerophilic and / or hydrophilic resin film sheet
Action bets Thus, parent gas resistance and or hydrophilic resin film sheet serving dispersing resin film sheet 30, granules 13 in the resin film acts like the grains 13 of the pressure-sensitive adhesive layer of the dispersion adhesive sheet 10, The granules 13 exposed on one surface of the resin film 32 absorb water to be swollen by the whole one or a plurality of granules 13 and then from the granules 13 exposed on the other surface of the resin film 32 to the outside air. Divergence and gap 34
Serves as a ventilation hole in the thickness direction of the resin film 32, and thus is highly hydrophilic and / or hydrophilic. Therefore, the dispersed resin film sheet 30 is the same as the dispersed adhesive sheet 1 described above.
It can be used as the air-permeable base material 11 of 0. Moreover, when the dispersed resin film sheet 30 is immersed in water, the granules 13 in the film swell and expand, so that the gap 34 is closed and the water permeability of the dispersed resin film sheet 30 is stopped. The dispersed resin film sheet 30 is a very useful resin film sheet that is a hydrophilic and / or hydrophilic film sheet in the air but becomes a water resistant film sheet in water.

Therefore, the dispersed resin film sheet 30
The dispersion pressure-sensitive adhesive sheet 10 using the air-permeable base material as described above has a water resistance without causing film embrittlement due to moisture even when the dispersion pressure-sensitive adhesive sheet is attached to the skin of a human body, and Since the gap 34 of the dispersed resin film sheet 30 is expanded by the action of the skin and the air permeability is excellent, it is synergistic with the action and effect of the hydrophilicity and hydrophilicity of the pressure-sensitive adhesive layer of the dispersed pressure-sensitive adhesive sheet 10 described above, and the water resistance and the hydrophilicity are improved. And a dispersion adhesive sheet having excellent hydrophilicity.

That is, in the normal state where the dispersed resin film sheet 30 is normally exposed to the outside air, the granules 13 in the dispersed resin film sheet 30 have a water absorbing function, and the gap 3
4 has a deaerating action, but when the dispersed resin film sheet 30 attached to the skin of the human body is wet with rain or immersed in water, the granules 13 in the dispersed resin film sheet 30 are swollen and expanded by water, Since the gap 34 is closed, it has a water blocking effect. At the same time, since the film of the dispersed resin film sheet 30 is water resistant, it serves to protect the pressure sensitive adhesive 12 applied to the inner surface of the dispersed resin film sheet 30 and prevent the effectiveness of the pressure sensitive adhesive 12 from decreasing.

The particles 13 in the dispersed resin film sheet 30 serve as an extender for the film, like the adhesive layer of the dispersed adhesive sheet 10, and contribute to the low cost of the dispersed resin film sheet 30.

Dispersion sheet, and aerophilic and / or hydrophilic
Manufacturing Method of Water-Soluble Adhesive Sheet Next, a manufacturing method of the dispersion sheet 9 and the dispersion pressure-sensitive adhesive sheet 10 which is a hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet will be described below with reference to FIG. (1) Grains of rice, wheat, peanuts or the like or dried shells of water-absorbing nuts or the like having a particle size of 17 to 2
A large number of granular particles 13 each having a size of 00 μ are immersed in water or alcohol. Then, since the composition of the granules 13 is mainly composed of hydrophilic pentosan, lignin, cellulose, ash (such as shikari) and the like, the granules 13 are normally swollen in water in a weight ratio of 1.5 to 10 times.

In this step, since the large number of particles 13 are immersed in water or alcohol, the particles 13 can be washed.

(2) Next, a large number of water-swollen granules 13
Is mixed into the pressure-sensitive adhesive 12 at a ratio of 10 to 60 parts by weight with respect to 100 parts by weight of an organic solvent such as toluene and hexane of the solvent-based pressure-sensitive adhesive 12, and the particles 13 are uniformly distributed in the pressure-sensitive adhesive 12. Make a mixed solution dispersed in. The pressure-sensitive adhesive 12 is preferably a rubber-based, acrylic-based, silicone-based, polyvinyl-based, polyurethane-based, polyester-based pressure-sensitive adhesive, but is not particularly limited.

In the case of a thread-like fibrous body such as wood pulp or rayon yarn having water absorbency, when mixed with the pressure-sensitive adhesive 12, the thread-shaped fibrous body precipitates or forms a dumpling so that the thread-shaped fibrous body is uniformly dispersed in the pressure-sensitive adhesive 12. Although not dispersed, since the granules 13 are granular, the granules 1 are uniformly mixed and dispersed in the pressure-sensitive adhesive 12.
The mixed state of 3 and the pressure-sensitive adhesive 12 is very good.

The composition of the granules 13 is polymerized with the organic solvent to be assimilated and easily eluted. However, when the granules 13 are swollen with water as described above, the water-crosslinking in the granules 13 causes the granules to cross-link. Since the component of 13 is protected from being assimilated into the organic solvent of the pressure-sensitive adhesive 12, even if the particles 13 are mixed in the solvent-based pressure-sensitive adhesive 12, the water absorption of the particles 13 does not decrease. Therefore,
It is preferable to use the water-swelled particles 13 for the solvent-based pressure-sensitive adhesive 12 for the above reason, but the solvent-based pressure-sensitive adhesive 12 is not necessarily limited to the water-swelled particles 13.

For the solventless pressure-sensitive adhesive 12 such as hot melt, preferably dried granules 13 can be used.

(3) The pressure-sensitive adhesive 12 of the above item (2) is applied to the roll-shaped one-sided or double-sided release paper 15 by various coating methods such as a doctor roll coater and a die coater.
The solid solution is applied to the mixed solution of the granules 13 and the granules 13 with a uniform thickness of 10 to 120 μm.

At this time, a large number of particles 13 are exposed on both sides of the adhesive layer as shown in FIG. Adhesive layer granules 13
In the dispersion state of No. 1, one particle 13 is mixed in the pressure-sensitive adhesive 12, or one particle 13 is independently exposed on both surfaces of the adhesive layer.
Alternatively, a plurality of granules 13 are continuous between both surfaces of the pressure-sensitive adhesive layer and exposed on both surfaces of the pressure-sensitive adhesive layer. That is, both surfaces of the pressure-sensitive adhesive layer are cross-linked by one or a plurality of particles 13 to expose the particles 13 on both surfaces of the pressure-sensitive adhesive layer. The dispersion state of the particles 13 of the pressure-sensitive adhesive layer varies depending on the size of the particles 13, the thickness of the pressure-sensitive adhesive layer, and the weight ratio of the particles 13 and the pressure-sensitive adhesive 12.

For example, the size of the granules 13 is 17-2.
The thickness of the pressure-sensitive adhesive layer is preferably 10 to 120 [mu] m with respect to 00 [mu], and when the thickness is more than 100 [mu] m, the exposed portion of the granules 13 on both surfaces of the pressure-sensitive adhesive 12 layer becomes small or the exposed granules 13 become small. Care must be taken because the water absorption and air permeability of the dispersion pressure-sensitive adhesive sheet 10 are significantly reduced. In this case, the thickness of the adhesive layer is most preferably 60μ.

The release surface of the release paper 15 is preferably made of silicone, which has excellent releasability, but may be non-silicone if it has the desired releasability.

In FIG. 2, the head clearance between the rolls 21 and 22 of the pressure sensitive adhesive coating machine is 100 to 300 μm.
Then, as shown in FIG. 3, a large number of space portions 16 (portions to which the adhesive 12 is not applied) reaching the strip-shaped release paper 15 having a width of about 1.5 mm are intermittently and randomly generated in the adhesive layer. To do. Since this space 16 is a space communicating with both surfaces of the pressure-sensitive adhesive layer, it is in a good state for providing breathability to the dispersion pressure-sensitive adhesive sheet 10 (in the present invention, a large number of the space 16 are formed in the pressure-sensitive adhesive layer). The coating is referred to as "streaking" below). The reason why this streaking occurs is due to the difference between the flow resistance of the adhesive 12 and the flow resistance of the particles 13 at the position of the head clearance, that is, the flow of the particles 13 flows at the position of the head clearance. This is because some of the particles 13 stay in the head clearance due to the slower speed, and the particles 13 form a streak-shaped space 16 downstream in the flow direction of the adhesive. afterwards,
When the granules 13 pass through the head clearance at a certain point, the space 16 is interrupted, and the subsequent granules 13 generate the stripe-shaped space 16 by the same action as described above. As a result, a large number of streaky spaces 16 are intermittently and randomly generated in the adhesive layer.

Therefore, by adjusting the head clearance, it is possible to change the number, position and length of the space portions 16, so that it is easy to change the streaking state.

(4) Next, as shown in FIG. 2, the solvent-based pressure-sensitive adhesive 12 is passed through a dryer 23 and dried with hot air, and the solvent-free pressure-sensitive adhesive 12 such as hot melt is not shown. Cool it by passing it through a cooling device. At this time, the adhesive 12 is treated so as not to fluidize.

When the pressure-sensitive adhesive 12 and the pressure-sensitive adhesive layer of the granules 13 pass through the dryer 23, since the boiling point of the organic solvent of the pressure-sensitive adhesive 12 is 60 ° C., the water vaporizes faster than the water content in the granules 13. The adhesive 12 is rapidly contracted to form a film, and then the water inside the granules 13 evaporates at 100 ° C.
A minute gap 14 (FIG. 1) is formed at the interface between the particles 13 and the pressure-sensitive adhesive 12 without flowing around. Since the granules 13 are exposed on both sides of the layer of the pressure-sensitive adhesive 12, the gap 14 is necessarily formed so as to penetrate in the thickness direction of the pressure-sensitive adhesive layer. This gap 14 provides the pressure-sensitive adhesive layer with air permeability.

The adhesive layer in this step is the so-called dispersion sheet 9 described above.

(5) Next, the dried pressure-sensitive adhesive layer on the release paper 15 is bonded and transferred to the breathable substrate 11 between the rolls 24 and 25 to form the dispersion pressure-sensitive adhesive sheet 10 having a cross section shown in FIG. To be done. When the dispersed resin film sheet 30, which is the hydrophilic and hydrophilic resin film sheet, is used as the breathable substrate 11, the dispersed pressure-sensitive adhesive sheet 10 having excellent water resistance and hydrophilicity and / or hydrophilicity is formed.

Other of the hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet
Manufacturing method In the manufacturing process of the above-mentioned dispersed pressure-sensitive adhesive sheet 10, the pressure-sensitive adhesive layer is formed on the release paper 15 and this pressure-sensitive adhesive layer is transferred to the breathable base material 11. The mixed solution of the agent 12 and the granules 13 is directly applied to the solid content to form the dispersion pressure-sensitive adhesive sheet 10, and the pressure-sensitive adhesive 12 of the dispersion pressure-sensitive adhesive sheet 10 is formed.
The release paper 15 may be attached to the layers.

When the dried granules 13 are mixed in the solvent-based pressure-sensitive adhesive 12, the composition of the granules 13 and the organic solvent of the pressure-sensitive adhesive 12 are polymerized to lower the water absorption of the granules 13. However, even in this case, since the above-described streak coating is generated by the granules 13, the breathability can be obtained by this streak coating.
Therefore, it is possible to provide the dispersed pressure-sensitive adhesive sheet 10 having sufficiently excellent air permeability only by forming the pressure-sensitive adhesive layer having the stripe coating on the air-permeable substrate 11.

Aerophilic and / or hydrophilic resin film sheet
Next, a method for manufacturing the dispersed resin film sheet 30, which is an aerophilic and / or hydrophilic resin film sheet, will be described by omitting the same portions as those for the above-described dispersed pressure-sensitive adhesive sheet 10.

The raw material of the dispersed resin film sheet 30 is a plastic such as vinyl chloride or polyurethane or a rubber type resin, and the T-die of the casting method or the extrusion method which is known as a film forming method of the dispersed resin film sheet 30. There is no limitation as long as it is a processing method for forming a film having a uniform thickness such as a method and a calendar roll method.

Further, when the dispersion resin film sheet 30 is manufactured by a solvent type roll coater, a solvent type polymer is used as a binder, and when it is manufactured by a solventless hot melt coater, a heat slack polymer is used as a binder. The binder may be urethane type, acrylic type, polyvinyl type, rubber type, or the like.

Then, the above-mentioned granules 135 to 120 are mixed and dispersed with respect to the binder 100 superposed portion to form a mixed solution. When the binder is a solvent-type polymer, in order to protect the granules 13 with water for the same reason as in the case of the hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet described above, preferably the water-swollen granules 13 are used,
Further, when the binder is a solvent-free type heat-slow polymer, it is not limited to this, but preferably dried granules 13 are used. A film of this mixed solution is formed by, for example, a roll coater as shown in FIG. 2 or an extruder or a casting method by a known extrusion method (not shown) to obtain a dispersed resin film sheet 30. The dispersed resin film sheet 30 is a stretchable amorphous film having water resistance in which a large number of particles 13 are evenly and finely scattered in the film, and the particles 1 per unit area of 1 cm 2 of the film.
The number of 3 depends on the clearance of the coater head and the mixing ratio of the binder and the particles 13.

For example, 40 parts by weight of granules 13, 2 parts by weight of isocyanate groups, and 20 parts by weight of toluene are mixed with 100 parts by weight of a binder of a solvent-based polymer of urethane type or polyurethane type, and this mixed solution is mixed with a known solution. It is put into a roll coater, and the knife clearance is adjusted so that flow resistance does not occur in the granules 13 of the mixed solution, that is, the above-described streaking does not occur. Then, the mixed solution is cast coated on the release surface of the release paper 15.
In addition, the film thickness of the dispersed resin film sheet 30 after drying is the same as the dispersed adhesive sheet 10 in order to expose the granules 13 on both surfaces of the film to obtain air permeability, and the diameter size of the granules 13 is 17 to 200 μm. For film thickness 20-120
μ is desirable, and a film thickness of 60 μ is most desirable.

The dispersed resin film sheet 30 obtained as described above is rich in water resistance, does not become brittle with water, and has the elasticity of the film.
It has a minute gap 34 of about 50 μm.

[0078]

Since the present invention is constructed as described above, it has the following effects.

(1) Since a large number of granules formed by granularly forming a substance having aerophilic and / or hydrophilic properties such as grains and nuts are dispersed, the aerobic properties and / or hydrophilic properties are excellent. It is possible to obtain a sheet or tape having various uses depending on the material of the sheet or tape in which a large number of particles are dispersed, and to provide a dispersion sheet or tape having excellent hydrophilicity and / or hydrophilicity that can be applied to a wide range of applications. I was able to.

The large number of granules could serve as a filler for the dispersion sheet or tape to provide an inexpensive dispersion sheet or tape.

(2) Since a pressure-sensitive adhesive layer in which a large number of granules made of a substance such as a shell having hydrophilicity and / or hydrophilicity such as grains and nuts is dispersed is formed on one surface of the breathable substrate, It was possible to provide an aerophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape excellent in aerophilicity and / or hydrophilicity that hardly causes inflammation even when attached.

(3) Since a large number of granules made of a substance such as a shell having hydrophilicity and / or hydrophilicity such as grains and nuts are dispersed in the resin film, it has water resistance and thus becomes brittle against water. It was possible to provide a hydrophilic and / or hydrophilic resin film sheet or tape which is excellent in hydrophilicity and / or hydrophilicity without being present in the atmosphere.

(4) Since the pressure-sensitive adhesive layer or the resin film is exposed on both sides of the pressure-sensitive adhesive layer or the resin film by cross-linking the both surfaces with one or a plurality of particles, the same effect as the above item (2) is obtained. An aerophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape having excellent hydrophilicity and / or hydrophilicity, and a water-resistant, aerobic and / or hydrophilic hydrophilicity having the same effect as the above item (3) and / or A hydrophilic resin film sheet or tape could be provided.

(5) The pressure-sensitive adhesive layer or the resin film is exposed on both sides of the pressure-sensitive adhesive layer or the resin film by cross-linking both sides with one or a plurality of particles, and the particles and the pressure-sensitive adhesive or the resin film are combined. Since a gap penetrating the adhesive layer or the resin film in the thickness direction is formed at the interface, the hydrophilic and / or hydrophilic adhesive sheet or tape having excellent hydrophilicity and / or hydrophilicity and having the same effect as the above item (2). It was also possible to provide a hydrophilic and / or hydrophilic resin film sheet or tape having excellent water resistance, hydrophilicity and / or hydrophilicity, which has the same effect as the above item (3).

(6) Since the pressure-sensitive adhesive layer or the resin film is formed with a thickness equal to or smaller than the size of the particles, it is inevitable that both sides of the pressure-sensitive adhesive layer or the resin film are cross-linked with one particle. , Since these particles are evenly dispersed throughout the pressure-sensitive adhesive layer or the resin film evenly, the hydrophilic and / or hydrophilic pressure-sensitive adhesive sheets or tapes having excellent hydrophilicity and / or hydrophilicity, and water resistance, hydrophilicity and Alternatively, a hydrophilic and / or hydrophilic resin film sheet or tape having excellent hydrophilicity could be provided.

(7) The particle size of the one or more particles is from 17 to 17
Since the pressure-sensitive adhesive layer or the resin film was formed to have a size of 200 μ and the thickness of 10 to 120 μ, the pressure-sensitive adhesive was formed by cross-linking both sides of the pressure-sensitive adhesive layer or the resin film with one or a plurality of particles. It is possible to form a state in which the layer or the resin film is exposed on both sides of the pressure-sensitive adhesive layer or the resin film as a whole, and a hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape having excellent hydrophilicity and / or hydrophilicity, and water resistance. It was possible to provide a hydrophilic and / or hydrophilic resin film sheet or tape having excellent hydrophilicity and / or hydrophilicity.

(8) Since a large number of linear grooves reaching the porous substrate are intermittently formed in the pressure-sensitive adhesive layer in the same direction and having an arbitrary length, the linear grooves that provide air permeability are even more aerobic. It was possible to provide a hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape having excellent hydrophilicity.

(9) Since the air-permeable base material is the hydrophilic and / or hydrophilic resin film sheet or tape of the present invention, the pressure-sensitive adhesive layer on the inner surface of the air-permeable base material even when wet or immersed in water. It was possible to provide a hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape which has water resistance capable of protecting water from water and has excellent hydrophilicity and / or hydrophilicity in the atmosphere.

(10) A large number of granules formed by granulating a substance having hydrophilicity and / or hydrophilicity are dispersed in an adhesive to produce a mixed solution, and the mixed solution is solidified on an air-permeable base material. Since the pressure-sensitive adhesive layer was formed by coating the particles, the particles can be easily and uniformly dispersed in the pressure-sensitive adhesive, so that the cross-linking state between both surfaces of the pressure-sensitive adhesive layer composed of one or a plurality of particles can be stabilized. ,
It was possible to easily provide a method for producing a hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape having excellent hydrophilicity and / or hydrophilicity.

(11) A large number of granules, which are formed by granulating a substance having hydrophilicity and / or hydrophilicity, are dispersed in a pressure-sensitive adhesive to produce a mixed solution, and the mixed solution is applied to a release surface of a release paper. Since the solid content was applied to form the pressure-sensitive adhesive layer, and then the pressure-sensitive adhesive layer on the release paper was transferred to the breathable substrate, one or a plurality of particles are easily dispersed because the particles are easily and uniformly dispersed in the pressure-sensitive adhesive. It was possible to stabilize the cross-linked state between both surfaces of the pressure-sensitive adhesive layer consisting of a body, and to easily provide a method for producing a hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape having excellent hydrophilicity and / or hydrophilicity. .

(12) The pressure-sensitive adhesive layer is formed by applying the solid content of the mixed solution according to the above (10) or (11) to an air-permeable substrate, and the one or a plurality of particles are provided between both surfaces of the pressure-sensitive adhesive layer. The particles are cross-linked to expose on both sides of the pressure-sensitive adhesive layer, and the pressure-sensitive adhesive layer is dried and shrunk to form a gap penetrating in the thickness direction of the pressure-sensitive adhesive layer at the interface between the particles and the pressure-sensitive adhesive layer. A hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape having excellent hydrophilicity and / or hydrophilicity, which can be easily and uniformly dispersed in the agent and easily form air-permeable gaps between both surfaces of the adhesive layer. The manufacturing method could be easily provided.

(13) Since the pressure-sensitive adhesive layer is formed by applying the solid content of the mixed solution to the air-permeable substrate in a thickness not larger than the size of the granules, it is inevitable that the pressure-sensitive adhesive layer has a space between both surfaces. It was possible to provide a method for producing a hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape having a stable hydrophilicity and / or hydrophilicity, which can be cross-linked with the granules and exposed on both sides of the pressure-sensitive adhesive layer.

(14) The large number of granules are swollen with water, and the swollen granules are dispersed in an adhesive to form a mixed solution,
The pressure-sensitive adhesive layer formed by applying the solid content of this mixed solution was dried with hot air to vaporize the organic solvent of the pressure-sensitive adhesive faster than the moisture in the granules to form the gaps at the interface between the granules and the pressure-sensitive adhesive. The hydrophilicity and / or hydrophilicity of the body is not impaired by the organic solvent of the pressure-sensitive adhesive, and the particles can be easily and uniformly dispersed in the pressure-sensitive adhesive and easily form air-permeable gaps. It was possible to provide a method for easily producing a hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape excellent in temper and / or hydrophilicity.

(15) The particle size of the one or more particles is 17
~ 200μ in size to form a granule, and the mixed solution in which the particles are uniformly dispersed in the adhesive is applied as a solid content in a thickness of 10 to 120μ to expose the particles on both sides of the adhesive layer. Therefore, it is possible to form a state in which both surfaces of the pressure-sensitive adhesive layer or the resin film are cross-linked with one or a plurality of granules and exposed on both surfaces of the pressure-sensitive adhesive layer or the resin film on the entire pressure-sensitive adhesive layer or the resin film. Therefore, it was possible to provide a method for producing an aerophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape which is extremely excellent in an aerophilic and / or hydrophilic property.

(16) A large number of granules formed by granulating a substance having hydrophilicity and / or hydrophilicity are dispersed in an adhesive to form a mixed solution, and the mixed solution is used as a flow resistance of the adhesive. The flow resistance of the granules is applied to the breathable substrate by passing through the head clearance of the pressure sensitive adhesive coating machine adjusted at the same time, and at the same time, a large number of linear grooves reaching the breathable substrate, Since it was generated intermittently and randomly in the pressure-sensitive adhesive layer by the granules staying in the head clearance, a large number of linear grooves that easily and stably reach the breathable base material only by changing the head clearance, The adhesive layer can be intermittently formed in the same direction to an arbitrary length, and the generation state of the linear grooves can be freely changed, and the hydrophilicity is further excellent in hydrophilicity and / or hydrophilicity. And / or hydrophilic It is possible to provide a method of producing a pressure-sensitive adhesive sheet or tape.

(17) A large number of granules formed by granularly forming a substance having hydrophilicity and / or hydrophilicity are dispersed in a raw material of a resin film to form a mixed solution, and the mixed solution is formed into a resin film. Since the resin film is formed by the film processing means, the granules are easily and uniformly dispersed in the resin film, so that it does not become brittle against water due to its water resistance and is hydrophilic and / or hydrophilic in the atmosphere. It has been possible to provide a method for easily producing a highly hydrophilic and / or hydrophilic resin film sheet or tape.

(18) A large number of granules formed by granularly forming a substance having hydrophilicity and / or hydrophilicity are dispersed in a raw material of a resin film to produce a mixed solution, and the mixed solution is peeled off from a release paper. Since the solid content was applied to the surface to form a resin film, the particles are easily and uniformly dispersed in the resin film, and therefore have water resistance and thus are not embrittled by water and have good hydrophilicity in the atmosphere. Alternatively, it was possible to provide a method for easily producing a hydrophilic and / or hydrophilic resin film sheet or tape having excellent hydrophilicity.

(19) Both sides of the resin film in (17) or (18) above are crosslinked with one or a plurality of particles to expose on both sides of the resin film, and the resin film is dried and shrunk to form particles. Since a gap that penetrates in the thickness direction of the resin film is formed at the interface between the body and the resin film, the granules can be easily and uniformly dispersed in the pressure-sensitive adhesive and also a breathable gap can be easily formed. It is possible to provide a method for producing a hydrophilic and / or hydrophilic resin film sheet or tape which is not brittle to water and has excellent hydrophilicity and / or hydrophilicity in the air because of its properties.

(20) In the method for producing an aerophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape according to any one of the above items (10) to (16), the aerophilic and / or hydrophilic resin of the present invention is used as the air-permeable base material. Since a film sheet or tape is used, it has water resistance capable of protecting the pressure-sensitive adhesive layer on the inner surface of the air-permeable base material from water even when it is wet or immersed in water, and has good hydrophilicity in the atmosphere. Alternatively, it was possible to provide a method for producing a hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape having excellent hydrophilicity.

[Brief description of drawings]

FIG. 1 shows a longitudinal cross-sectional view of a dispersion sheet or tape of the present invention and a hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape.

FIG. 2 is a sectional view taken along line BB of FIG.

FIG. 3 shows a partial perspective view of the dispersion sheet or tape of the present invention, and the hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape.

FIG. 4 is a longitudinal sectional view of the hydrophilic and / or hydrophilic resin film sheet or tape of the present invention.

FIG. 5 shows an example of a process chart of a method for producing the dispersion sheet or tape, the hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape, and the hydrophilic and / or hydrophilic resin film sheet or tape of the present invention.

[Explanation of symbols]

 9 Dispersion Sheet 10 Dispersion Adhesive Sheet 11 Porous Substrate 12 Adhesive 13 Granules 14 Gap 15 Release Paper 16 Space Part 21,22 Roll 23 Dryer 24, 25 Roll 30 Dispersion Resin Film Sheet 32 Resin Film 34 Gap

Continuation of front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location C09J 7/02 JKZ 6770-4J JLE 6770-4J // C08J 5/12 9267-4F

Claims (23)

[Claims] 1. A dispersion sheet or tape in which a large number of granules formed by granularly forming a substance having hydrophilicity and / or hydrophilicity are dispersed. 2. An aerobic and / or an aerobic material characterized in that a pressure-sensitive adhesive layer, in which a large number of particles formed by granularly forming a substance having an aerophilic property and / or a hydrophilic property is dispersed, is formed on one surface of an air-permeable substrate. Hydrophilic adhesive sheet or tape. 3. An aerophilic and / or hydrophilic resin film sheet or tape, characterized in that a large number of particles formed by granularly forming a substance having an aerophilic and / or hydrophilic property are dispersed in a resin film. 4. The pressure-sensitive adhesive layer or the resin film is exposed on both sides of the pressure-sensitive adhesive layer or the resin film by cross-linking between both sides with one or a plurality of particles.
The hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape as described above, and the hydrophilic and / or hydrophilic resin film sheet or tape. 5. The pressure-sensitive adhesive layer or the resin film is exposed on both sides of the pressure-sensitive adhesive layer or the resin film by cross-linking both sides with one or a plurality of particles, and the interface between the particles and the pressure-sensitive adhesive or the resin film. A gap that penetrates in the thickness direction of the pressure-sensitive adhesive layer or the resin film is formed in
The hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape as described above, and the hydrophilic and / or hydrophilic resin film sheet or tape. 6. The dispersion sheet or tape according to any one of claims 1 to 5, wherein the granules are formed by granulating shells having aerophilicity and / or hydrophilicity such as grains and nuts. 7. The hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape according to any one of claims 2 to 5, wherein the pressure-sensitive adhesive layer or the resin film is formed with a thickness equal to or smaller than the size of the particles. Aerophilic and / or hydrophilic resin film sheet or tape. 8. The particle size of the one or more particles is 17 to 20.
The adhesive layer or the resin film is formed to have a size of 0 μ and the thickness of the adhesive layer or the resin film is formed to be 10 to 120 μ.
An aerophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape according to any one of the above, and an aerophilic and / or hydrophilic resin film sheet or tape. 9. A large number of linear grooves reaching the breathable base material,
The hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape according to claim 2, 4, 5, 7 or 8, which is intermittently formed in the pressure-sensitive adhesive layer in the same direction to an arbitrary length. 10. The breathable base material according to claim 3, 4, 5, or 5.
The hydrophilic or hydrophilic resin film sheet or tape according to any one of 7 or 8,
5. The hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape according to any one of 5 or 7. 11. A mixture solution is produced by dispersing a large number of granules formed by granularly forming a substance having hydrophilicity and / or hydrophilicity into a pressure-sensitive adhesive, and the mixture solution is added to a gas permeable base material as a solid content. A method for producing a hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape, which comprises applying the pressure-sensitive adhesive layer to form a pressure-sensitive adhesive layer. 12. A mixture solution is produced by dispersing a large number of granules formed by granulating a substance having hydrophilicity and / or hydrophilicity in a pressure-sensitive adhesive, and the mixture solution is solidified on a release surface of a release paper. A method for producing an aerophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape, characterized in that the pressure-sensitive adhesive layer on the release paper is transferred to an air-permeable base material by applying an adhesive layer to form a pressure-sensitive adhesive layer. 13. A pressure-sensitive adhesive layer is formed by applying the mixed solution to an air-permeable base material in a solid content, and both surfaces of the pressure-sensitive adhesive layer are crosslinked with the one or more particles to form both surfaces of the pressure-sensitive adhesive layer. 13. The method for producing an aerophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape according to claim 11 or 12, which is exposed. 14. A pressure-sensitive adhesive layer is formed by applying the mixed solution to an air-permeable base material as a solid content, and both surfaces of the pressure-sensitive adhesive layer are crosslinked with the one or more particles to form both surfaces of the pressure-sensitive adhesive layer. 13. The hydrophilic layer according to claim 11 or 12, wherein the pressure-sensitive adhesive layer is dried and shrunk to form a gap that penetrates in the thickness direction of the pressure-sensitive adhesive layer at the interface between the particles and the pressure-sensitive adhesive layer. Alternatively, a method for producing a hydrophilic pressure-sensitive adhesive sheet or tape. 15. The air-permeable group having a thickness less than or equal to the size of the granules is added to the mixed solution in order to cross-link the both surfaces of the pressure-sensitive adhesive layer with the one particle to expose the both surfaces of the pressure-sensitive adhesive layer. The method for producing a hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape according to claim 13 or 14, wherein a solid content is applied to the material to form a pressure-sensitive adhesive layer. 16. A pressure-sensitive adhesive layer formed by swelling the large number of particles with water, dispersing the water-swelled particles in a pressure-sensitive adhesive to produce a mixed solution, and applying the mixed solution to a solid content. The method for producing an aerophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape according to claim 13, wherein the adhesive is dried with hot air to vaporize the organic solvent of the pressure-sensitive adhesive faster than the water content in the granules to form the gap at the interface between the granules and the pressure-sensitive adhesive. . 17. The one or more particles have a particle size of 17 to 2
A mixed solution in which the particles were formed in a size of 00 μ and the particles were uniformly dispersed in the pressure-sensitive adhesive was applied as a solid content in a thickness of 10 to 120 μ to expose the particles on both sides of the pressure-sensitive adhesive layer. A method for producing the hydrophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape according to any one of claims 13 to 16. 18. A mixture solution is produced by dispersing a large number of granules formed of a substance having aerophilicity and / or hydrophilicity in a granular form in a pressure-sensitive adhesive, and the mixed solution is used as a flow resistance of the pressure-sensitive adhesive and the particles. The head clearance of the pressure sensitive adhesive coating machine adjusted so as to have a difference with the flow resistance of the body is applied to the breathable base material at the same time, and at the same time, a large number of linear grooves reaching the breathable base material, the head. A method for producing an aerophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape, characterized in that the pressure-sensitive adhesive layer is intermittently and randomly generated in the pressure-sensitive adhesive layer by particles staying at clearance. 19. A mixture solution is produced by dispersing a large number of granules, which are formed of a substance having hydrophilicity and / or hydrophilicity, into a raw material of a resin film, and the mixed solution is formed into a film for forming a resin film. A method for producing an aerophilic and / or hydrophilic resin film sheet or tape, characterized in that a resin film is formed by a processing means. 20. A large number of particles formed by granularly forming a substance having hydrophilicity and / or hydrophilicity are dispersed in a raw material of a resin film to form a mixed solution, and the mixed solution is prepared, and the mixed solution is used as a release surface of a release paper. A method for producing an aerophilic and / or hydrophilic resin film sheet or tape, which comprises applying a solid content to a resin film to form a resin film. 21. The aerophilic and / or hydrophilic property according to claim 19 or 20, wherein both surfaces of the resin film are cross-linked with the one or a plurality of particles to be exposed on both surfaces of the resin film. A method for producing a resin film sheet or tape. 22. Both sides of the resin film are cross-linked with the one or more particles to expose on both sides of the resin film, and the resin film is dried and shrunk to form a resin film at the interface between the particles and the resin film. The method for producing an hydrophilic and / or hydrophilic resin film sheet or tape according to claim 19 or 20, wherein a gap penetrating in the thickness direction is formed. 23. The method for producing an aerophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape according to any one of claims 11 to 18, wherein the breathable base material is the parent according to any one of claims 3 to 8. A method for producing an aerophilic and / or hydrophilic pressure-sensitive adhesive sheet or tape which is a vapor and / or hydrophilic resin film sheet or tape.