JPH0640896B2 - Reservoir bag made of polyvinyl alcohol film for excretion treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention shows that the inner surface is water-impermeable, and the outer surface is water-soluble or water-dispersible in water of about 40 ° C. or lower. The present invention relates to a storage bag for an excretion treatment device, which has a function of dissolving or dispersing in water when thrown away.

(Prior Art) Currently, disposable products that are commercially available, for example, ostomy bugs, are processed by throwing away the used products as raw garbage that is collected every day or for a week. In the method of dumping, the discomfort often occurs due to the foul odor of filth. Therefore, there is no doubt that it would be very convenient and sanitary if a means was provided that allowed such products to be dumped under running water in a normal toilet. However, in order to do so, it is essential that these products be dissolved or dispersed in the toilet running water.

Heretofore, various proposals have been made to make products having these performances.

Japanese Patent Application Laid-Open No. 50-113556 describes a composition comprising a partially hydrolyzed polyvinyl alcohol, a plasticizer and a metal borate which is insoluble in a small amount of water and soluble in a large amount of water. . That is, it is very difficult to store a large amount of water or body fluid.

In Japanese Patent Publication No. 56-500037, about 16 ° C.
The following describes a toilet bag using a modified hydroxypropyl cellulose that is soluble in water but insoluble in water at 16 ° C or higher. However, the water temperature in the toilet changes with the seasons, especially in the summer, when it rises above 16 ° C.
It has the drawback that it cannot be flushed down the toilet.

JP-A-60-122527 discloses that a bag for human excretion containing a 3-hydroxybutyrate polymer and a basic substance is contained, but since it is necessary to raise the pH to 12 or more, the toilet It is highly anticipated that it will adversely affect the biological treatment of.

Japanese Unexamined Patent Publication No. 63-181758 describes a pouch for an artificial anus that can be dumped in running water, and one layer of the laminate is composed of hot water-soluble and water-resistant tissue paper, and is dissolved or dispersed in toilet water. Without doing so, it may adversely affect the function of the toilet.

On the other hand, the number of elderly patients who are bedridden and the number of physically handicapped due to traffic accidents is increasing, and the number of patients who have difficulty in defecation is increasing. For the purpose of treating excrement of these people, an excretory treatment device has been proposed which crushes, absorbs and removes feces staying in the rectum by using ultrasonic waves (Japanese Patent Laid-Open No. HEI-1).
-198540).

(Problems to be Solved by the Invention) In the above-mentioned conventional techniques, there is still no material capable of retaining a large amount of body fluid for a long time, such as ostomy bugs, while easily dissolving or dispersing in water at the time of disposal.
It has not been commercialized.

Further, even in the above-mentioned excretion treatment device, it is completely impossible to dispose of the odor associated with feces in the toilet without leaking it, and the burden on the patient and the burden on the caregiver are very large. is there.

According to the present invention, one side of the film is water-insoluble for a long time, and when water is infiltrated from the other side of the film, the whole film is a storage bag made of a basic material which can be easily dissolved or dispersed in water in a short time. It is therefore an object of the present invention to provide a storage bag for an excretion treatment device, which can be used in the excretion treatment device to store feces and urine And

(Means for Solving the Problems) The inventors of the present invention have conducted extensive studies to achieve the above-mentioned object, and found that the mechanism for forming a gel of polyvinyl alcohol and the water repellent function of the water repellent are combined. By this, the water impermeability of one side of the film can be dramatically increased, and when the film is thrown into water, it can be dissolved or dispersed in water in a short time, and it is useful as a storage bag for excretion treatment equipment. And has arrived at the present invention.

That is, the present invention comprises a film comprising a polyvinyl alcohol having a saponification degree of 70 to 98% and a gelling accelerator of polyvinyl alcohol, and a water repellent agent coated on one side of the film. The gist of the present invention is a storage bag for an excretion treatment device, which is formed so that the inside is inside.

Hereinafter, the present invention will be described in detail.

Generally, polyvinyl alcohol means polyvinyl alcohol or its derivative. Polyvinyl alcohol is
There is a known method such as hydrolysis by producing polyvinyl acetate obtained by polymerizing vinyl acetate, that is, deacetic acid production. In this process, the degree of hydrolysis is called saponification degree, and it is an amount showing the proportion of deacetic acid in the monomer unit of polyvinyl alcohol. A saponification degree of 100% means that all the acetic acid ester residues of polyvinyl acetate are hydrolyzed to hydroxyl groups, and a polyvinyl alcohol with a saponification degree of 95% means that the monomer unit of polyvinyl acetate is 95% hydroxyl groups. Is replaced with.

The polyvinyl alcohol used in the present invention has a saponification degree of 70 to 98% and is dissolved, swelled or dispersed in water at about 40 ° C. or lower. Further, the molecular weight of polyvinyl alcohol, that is, the degree of polymerization is not limited, and, for example, it is possible to use polyvinyl alcohol having a low degree of polymerization and a high degree of polymerization as a blend. Further, it is a binary, ternary or quaternary copolymer containing a monomer capable of copolymerizing with vinyl acetate as a monomer of polyvinyl alcohol if it dissolves, swells or disperses in water at about 40 ° C or lower. It doesn't matter.
Examples of the copolymerizable monomer component include monomers having a double bond in the molecule. As an example, methyl vinyl ether, styrene, vinyl chloride, allyl alcohol, acrylic acid and its ester, methacrylic acid and its ester, acrylonitrile, vinylpyrrolidone, chloroprene, butadiene, isoprene, ethylene, propylene and the like can be mentioned.

The polyvinyl alcohol gelation accelerator used in the present invention refers to salts having a coagulating effect on polyvinyl alcohol, substances capable of chemically binding polyvinyl alcohol and diol type, and the like. Salts preferably used in the present invention include sulfates such as sodium sulfate, magnesium sulfate, aluminum sulfate, ammonium sulfate and potassium sulfate, nitrates such as sodium nitrate, ammonium nitrate and aluminum nitrate, phosphates such as sodium phosphate, and chromic acid. Chromates such as potassium are included. Examples of the substance capable of chemically bonding with polyvinyl alcohol include compounds such as boric acid, borate, borax, copper, aluminum, titanium, zirconium, tin and vanadium.

The ratio of these gelling promoters to polyvinyl alcohol depends on the gelling ability of each gelling promoter, but it depends on the monomer unit of polyvinyl alcohol.
It preferably contains 0.1 to 30 mol%, preferably 0.1 to 20 mol%. When the gelling agent concentration is lower than 0.1 mol%,
The water impermeability required for the film deteriorates.
If it exceeds 30 mol%, on the contrary, the water solubility of the film cannot be sufficiently obtained, and the desired film performance cannot be obtained.

The film containing the gelling agent and polyvinyl alcohol in the present invention as constituent elements can be produced by various methods. Preferably, the polyvinyl alcohol is
After being dissolved, swelled or dispersed in water at an appropriate temperature by a known method, an aqueous solution or dispersion of a gelling accelerator is added, mixed under stirring, and cast and dried to produce the composition. A heat treatment step may be added to increase the film strength.

The film used in the present invention is obtained by coating a water repellent agent on one surface of a polyvinyl alcohol film containing a gelling agent obtained under the above conditions by a known method such as a coating method or a spray method. Is obtained by

Generally, a water repellent agent is a water repellent treatment that imparts a property of resisting wetting (wetting) with water to the surface of a film or the like, and refers to a chemical agent used for this. Water repellents are commonly used for surface treatment of textiles, especially textiles.
A substance that repels water is required to impart water repellency to the surface, and compounds with lower surface energy tend to repel water. If Shimese in chemical structure, -CF _3> -CF _2>
-CH _3> repels water well in the order of -CH _2. That is, a compound having a saturated hydrocarbon moiety such as paraffin or stearic acid or a compound having a large number of methyl groups such as a silicone resin is generally known as a moiety that imparts water repellency. In addition, fluorine compounds with perfluoroalkyl groups have both water repellency and oil repellency, which repels oily substances.

Typical examples of the water repellent used in the present invention include paraffin, aluminum stearate, zirconium stearate, a silicone resin or methylhydropolysiloxane as a main component, and a reactive silicone compound or pyridinium which is reticulated by a catalyst. Reactive long-chain saturated hydrocarbon compounds such as salt-type cationic surfactants, methylol stearamide, octadecyl ethylene urea, etc., and acrylic acid polyfluoroalkyl esters having perfluoroalkyl groups as side chains And compounds containing fluorine in the main chain. A water repellent comprising a compound having a perfluoroalkyl group having a property of repelling water and oil is preferably used, but another water repellent may be selected depending on the application. There is no limitation on the coating amount and the heat treatment method after coating.

The water-repellent agent as described above is a known method such as a coating method in which a compound having water repellency is emulsified in water using a small amount of a surfactant or dispersed and dissolved in a solvent on the film surface. It can be coated with and can be dried and heat treated depending on the application.

The thickness of the film of the present invention is not particularly limited, but usually 25
A thickness of ˜250 μm is preferably used.

Further, in order to improve the flexibility of the film, a plasticizer may be added to the extent that the performance of the film is not impaired. Glycols are generally used as the plasticizer. For example, ethylene glycol, trimethylene glycol, tetramethylene glycol, pentamethylene glycol,
Hexamethylene glycol, propylene glycol, glycerin, 2,3-butanediol, 1,3-butanediol, diethylene glycol, triethylene glycol and the like can be mentioned.

Further, since the film layer containing polyvinyl alcohol as a main component is colored, a coloring agent or dye may be added to the extent that the performance and strength of the film are not impaired. For example, Benzopurpuri 4BKX (Benzopurpuri
ne4BKX), Nippon Orange GC (Nippon Orange)
GC), Chrysophenine NS,
Direct Sky Blue 5B
B), NIPPON FURSE Violet BB (Nippon F
ast Vio-letBB), Direct Brown M (Direct Br
ownM), Nippon Deep Brack Extra (Nippo
n Deep Black extra), Sulfur Indigo R (Sulp
hur IndigoR), Sulfur Blaccus BC (Sulfur Bl)
ackBC), Mikethrene BlueR
S), Naphtol AS, Farst Scarlet G Base, Roselin NS (Rocceline NS), Acitrated Brilliant Scarlet 3R (Acid Brilliant Scarlet 3R), Chrome Green F (Chrome Green F), Chrome Black AC
(Chrome BlackAC), Rhodamine B (Rhodamine B),
Celliton Fast Pink F3B (Celliton Fast Pink
F3B), Ceriton Fast Blue FFR (Celliton
Fast Blue FFR) and the like.

By molding the film obtained as described above into a bag shape, the storage bag for the excretion treatment device of the present invention can be prepared.

Next, an example of an excretion treatment device in which the storage bag for an excretion treatment device of the present invention is preferably used is shown in FIG. 1 and will be described with reference to the drawings.

The crushing suction tool (1) has an oscillation oscillator inside, and the horn (2) which is the tip of the crushing suction tool (1) vibrates ultrasonically. The ultrasonic oscillator (4) supplies high-frequency power to the vibrator inside the crushing suction tool via the cable (5). The liquid delivery pump (6) warms the intestinal washing liquid (7) such as physiological saline, which is isotonic or harmless to the living body, with the preheater (8), and the irrigation tube (9), crushing suction device. Send to the rectum via (1). The storage container (10) includes a suction tube (3) from the crushing suction tool (1) and a suction pump (1).
The suction tube (11) from 2) is connected, and the storage bag (13) of the present invention is built in the storage container (10) and is connected to the suction tube (3) by the snap ring (14). There is. The storage bag (13) stores excrements such as feces through the suction tube (3) through the crushing suction tool (1). The force for sucking the excrement into the storage bag (13) is generated by the suction pump (12) and transmitted through the suction tube (11).

(Example) Hereinafter, the present invention will be described in detail based on examples.

Example 1 Polyvinyl alcohol (hereinafter abbreviated as PVA) (UF
-170M, manufactured by Unitika Ltd., saponification degree 95.5 to 97.5 mol%) was placed in a 15g beaker, and 90g of distilled water was added to sufficiently swell, and then PV was vigorously stirred in a water bath at 90 ° C.
A was dissolved. A solution prepared by dissolving 1.17 g of aluminum sulfate in 10 g of distilled water was added to this solution with stirring and mixed.
After removing bubbles in the solution, the mixed solution was cast onto a polyethylene terephthalate film and air-dried at room temperature overnight.
The obtained film was designated as A film.

Next, AG-65 was used as a water repellent on the 20 cm square A film.
0 (manufactured by Asahi Glass Co., Ltd.) was evenly applied for about 2 m, dried at room temperature for about 1 hour, and further heat-treated at 100 ° C. for about 10 minutes.

Comparative Example 1 In Example 1, about 1 at 100 ° C. without applying the water repellent.
The same operation was performed except that the heat treatment was performed for 0 minutes.

Example 2 In Example 1, 1.17 g of aluminum sulfate was added to 0.21 of boric acid.
The same operation was performed except that g was replaced.

Comparative Example 2 In Example 2, about 1 at 100 ° C. without applying the water repellent.
The same operation was performed except that the heat treatment was performed for 0 minutes.

Example 3 In Example 1, PVA (UF-170M) was added to PVA.
(UP-180, manufactured by Unitika Ltd., saponification degree 87-8
(9 mol%), except that the same operation was performed.

Comparative Example 3 In Example 3, the water repellent was not applied and the temperature was about 1 at 100 ° C.
The same operation was performed except that the heat treatment was performed for 0 minutes.

Example 4 In Example 3, 1.17 g of aluminum sulfate was added to 0.21 of boric acid.
The same operation was performed except that g was replaced.

Comparative Example 4 In Example 4, about 1 at 100 ° C. without applying the water repellent.
The same operation was performed except that the heat treatment for 0 minutes was added.

Example 5 In Example 1, PVA (UF-170M) was mixed with PVA.
(E-180, manufactured by Unitika Ltd., saponification degree 87-89.
The same operation was performed except that the amount was changed to mol%).

Comparative Example 5 In Example 5, the water repellent was not applied and the temperature was about 1 at 100 ° C.
The same operation was performed except that the heat treatment for 0 minutes was added.

Test Example A water-repellent treated surface of the film obtained in Examples 1 to 5 was heat-sealed to produce a 10 cm square storage bag for an excretion treatment device. Similarly, similar bags were prepared from the films of Comparative Examples 1 to 5.

30 m of distilled water was added to each bag to observe how it changed. The results are shown in Table-1.

Also, add 10 cm square of each film to 50 m of distilled water,
The change in situation was observed under stirring. The results are shown in Table-2.

As is clear from Table-1, the storage bag for an excretory device of the present invention has a water retention property for one hour or more, and Table-2.
As is clear from the above, it has the property of being dissolved or dispersed in water within several tens of minutes.

(Effects of the Invention) In the storage bag for an excretion treatment device of the present invention, one side of the film exhibits water insolubility for a long time, and when the water infiltrates from the other side of the film, the entire film is easily and quickly formed. Since a film that dissolves or disperses in water is used, it is possible to store feces and urine and then dispose of the entire bag in a flush toilet or the like and dissolve or disperse it in a large amount of water.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an excretion processing device into which the storage bag for an excretion processing device of the present invention can be suitably incorporated. 13 ... Storage bag for excretion treatment device

Claims (1)

[Claims] 1. A film comprising a polyvinyl alcohol having a saponification degree of 70 to 98% and a gelling promoter for polyvinyl alcohol, and a water repellent coated on one side of the film, the surface coated with the water repellent. A storage bag for the excretion disposal device, which is molded so that the inside is inside.