JPH04200470A - Storage bag for excrement disposing apparatus comprising polyvinyl alcohol film - Google Patents

Abstract

PURPOSE:To enable dissolution or dispersion by a large amount of water by forming a surface which comprises a film coated with a water repelling agent on one side of a film which comprises a polyvinyl alcohol with a specified degree of saponification and a gelatination promoter of the polyvinyl alcohol with the side coated thereof inside. CONSTITUTION:In a storage bag for an excrement disposing device, a surface which comprises a film coated with a water repelling agent is formed on one side of a film which comprises polyvinyl alcohol with a degree of saponification of 70-98% and a gelatination promoter of the polyvinyl alcohol with the side coated thereof inside. The polyvinyl alcohol is 70-98% in the degree of saponification and dissolved, swelled or dispersed in water below about 40 deg.C. As to the storage bag, the one side of the film shows non-water solubility for a long time. When water infiltrates from another surface of the film, the film is dissolved or dispersed in water easily in a short time as a whole. Thus, after the storage of excrements and urine, the bag is discarded and can be dissolved or dispersed by a large amount of water.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is characterized in that the inner surface is water-impermeable and the outer surface is water-soluble or water-dispersible in water at temperatures below about 40°C. The present invention relates to a storage bag for an excretion treatment device that has a function of dissolving or dispersing one money-lending body in water when it is dumped into water.

(Conventional technology) For example, nine disposable products are currently available on the market.

Ostomy bags and the like are disposed of by disposing of the used products as raw garbage that is collected every day or once a week, but with the current disposal method, the odors of the waste may cause discomfort. occurs frequently. Therefore, there is no doubt that it would be very convenient and sanitary to be provided with a means to dispose of such products under running water in a regular toilet. However, for this purpose, it is essential that these products be dissolved or dispersed in flushing toilet water.

Conventionally, various proposals have been made to create products with these performances.

Japanese Unexamined Patent Publication No. 1-113556 describes a composition consisting of partially hydrolyzed polyvinyl alcohol, a plasticizer, and a metal boric acid salt, which is insoluble in a small amount of water but soluble in a large amount of water. In other words, it is very difficult to store large amounts of water or body fluids.

In Special Publication No. 56-500037.

A toilet bag is described that uses modified hydroxypropylcellulose which is soluble in water at temperatures below about 16°C, but insoluble in water at temperatures above 16°C. However, the water temperature in the toilet fluctuates depending on the season.

Especially in summer, when the temperature reaches 16°C or higher, it has the disadvantage that it cannot be flushed down the toilet.

JP-A-60-122527 discloses a bag for human excretion containing a 3-hydroxybutyrate polymer and a basic substance, but it is necessary to raise the pH to 12 or higher.

It is fully expected that this will have a negative impact on the biological treatment of toilets.

JP-A-63-181758 describes a bow for an ostomy that can be thrown into running water.

One layer of the laminate is made of hot water soluble and water resistant tissue paper, which will not dissolve or disperse in the toilet water and may adversely affect the toilet's functionality.

On the other hand, patients who have difficulty defecating due to the increasing number of bedridden elderly and people with physical disabilities due to traffic accidents due to the aging of the population.

It's actually increasing. In order to dispose of the excrement of these people, an excrement disposal device has been proposed that uses ultrasonic waves to crush, suction, and remove the feces remaining in the rectum (Japanese Patent Laid-Open Publication No. 119B540).

(Problems to be Solved by the Invention) In the prior art described above, materials that retain large amounts of body fluids for long periods of time, such as male me bags, and that easily dissolve or disperse in water when thrown away. There is no one yet, and it has not been commercialized.

Also, in the excretion treatment device as described above.

It is completely impossible to dispose of feces in the toilet without leaking odors, etc., and the pain it causes to patients and the burden on caregivers is extremely large.

In the present invention, one side of the film exhibits water insolubility over a long period of time, and when water infiltrates from the other side of the film, the entire film becomes a reservoir made of a basic material that easily dissolves or disperses in water in a short period of time. We provide a storage bag for an excretion treatment device that can be used in an excretion treatment device to store feces and urine and then dispose of each bag in a flush toilet, etc., where it can be dissolved or dispersed with a large amount of water. purpose.

(Means for Solving the Problems) In order to achieve the above objectives, the present inventors have conducted intensive research and found that they have combined the gel generation mechanism of polyvinyl alcohol with the water repelling function of a water repellent. This dramatically increases the water impermeability of one side of the film, and when the film is dumped into water, it can be dissolved or dispersed in water in a short time, making it useful as a storage bag for excrement treatment equipment. The present invention was arrived at based on this finding.

That is, 1 the present invention consists of a film made of polyvinyl alcohol with a degree of saponification of 70 to 98% and a polyvinyl alcohol gelling promoter, one side of which is coated with a water repellent, and the surface coated with a TA water agent. The gist of the bag is a storage bag for an excretion treatment device that is formed so that the inner side is the inner side of the bag.

The present invention will be explained in detail below.

Generally, polyvinyl alcohol refers to polyvinyl alcohol or a derivative thereof. Polyvinyl alcohol is
There are known methods such as producing it by hydrolyzing polyvinyl acetate, which is obtained by polymerizing vinyl acetate, that is, by removing acetic acid. In this process, the degree of hydrolysis is called the degree of saponification, which is an amount that indicates how much of the monomer units of polyvinyl alcohol have been deacetated. A degree of saponification of 100% means that all acetate residues in polyvinyl acetate have been hydrolyzed to hydroxyl groups, and polyvinyl alcohol with a degree of saponification of 95% means that the monomer unit of polyvinyl acetate is 95%. It means something substituted with a hydroxyl group.

The polyvinyl alcohol used in the present invention is.

It has a degree of saponification of 70 to 98% and is soluble, swollen or dispersed in water of approximately 40"C or less. Also, the molecular weight of polyvinyl alcohol.

That is, there is no limit to the degree of polymerization, and for example, it is possible to use a blend of polyvinyl alcohol with a low degree of polymerization and a polyvinyl alcohol with a high degree of polymerization. In addition, binary, ternary or quaternary copolymers containing 1,000 ml of polyvinyl alcohol as a monomer that can be copolymerized with vinyl acetate, provided that it dissolves, swells or disperses in water at a temperature below approximately 40°C. It doesn't matter if it's a combination. Examples of the copolymerizable monomer component 7 include monomers having a double bond in one molecule. -For example, methyl vinyl ether 1
Styrene, vinyl chloride, allyl alcohol.

Acrylic acid and its esters, meccrylic acid and its esters, acryloni-1-lyl, vinylpyrrolidone,
Examples include chloroprene, butadiene, isoprene, ethylene, propylene, and the like.

The polyvinyl alcohol gelation promoter used in the present invention refers to salts that have a coagulating effect on polyvinyl alcohol, substances that can form diol-type chemical bonds with polyvinyl alcohol, and the like. Salts preferably used in the present invention include:

Sodium sulfate, magnesium sulfate 9 Sulfates such as aluminum sulfate, ammonium sulfate, potassium sulfate, nitrate I/lium, ammonium nitrate J1. Examples include nitrates such as aluminum nitrate, phosphates such as thorium phosphate, and comates such as potassium chromate. In addition, L7 is a substance capable of chemical bonding with polyvinyl alcohol,
Boric acid, borate.

Examples include compounds such as borax, copper, aluminum, tan, zirconium, tin, and vanadium.

What is the ratio of these gelling promoters to polyvinyl alcohol? Although it varies depending on the gelling ability of each gelling accelerator,
．． The content is preferably 1 to 30 mol%, preferably 0.1 to 20 mol%. If the gelling agent concentration is lower than 0.1 mol%, the water impermeability required for the film will deteriorate;
Nita. If it exceeds 30 mol%, on the contrary, sufficient water solubility of Filno 9 will not be obtained, and the desired film performance will not be obtained.

The film 1 comprising the gelling agent and polyvinyl alcohol in the present invention can be produced by various methods. Preferably, < means polyvinyl alcohol. By a known method. After dissolving, swelling or dispersing in water at an appropriate temperature, an aqueous solution or dispersion of a gelling promoter is added, mixed with stirring, cast and dried. To increase film strength.
A heat treatment step may be added.

The film used in the present invention is obtained by coating one side of the polyvinyl alcohol film containing the gelling promoter obtained under the above conditions with a water repellent by a known method such as a coating method or a spray method. It is obtained by

In general, a water repellent is a material that is applied to the surface of a film, etc.
The process of imparting the ability to resist water (wet) is called water repellent finishing, and refers to the chemicals used for this process. Water repellents are commonly used for surface treatment of textile products, especially textiles. To make the surface water repellent. A substance that repels water is required, and compounds with low surface energy tend to repel water easily. In terms of chemical structure, -CF3 > -CF,
>-CH3 >-CH. Repel water well in this order. That is, compounds with a saturated hydrocarbon moiety, such as paraffin and stearic acid, and compounds with a large number of methyl Ws, such as silicone resin, are known as moieties that impart water repellency to [. Furthermore, fluorine compounds with perfluoroalkyl groups are! 8 It also has oil-repellent properties that repel water-based and oil-based substances.

The following are examples of typical compounds as dehydrating agents used in the present invention. A reactive silicone compound or pyridinium salt type cationic surfactant that contains paraffin, aluminum stearate, zirconium stearate, silicone resin, or methylhydropolysiloxane as one component and forms a network with a catalyst.

Reactive long-chain saturated hydrocarbon compounds such as methylol stearami 1' and octadecyl ethylene urea, as well as compounds containing acrylic acid polyfluororl alkyl esters having perfluoroalkyl groups in their side chains and fluorine Examples include compounds containing in the main chain. water. Further, a water repellent containing a compound having a perfluoroalkyl group having oil-repellent properties is preferably used, but other water repellents may be selected depending on the purpose. Moreover, there are no restrictions on the amount of coating and the method of heat treatment after coating.

The above-mentioned water repellent can be produced using known methods such as coating a film surface with a compound that has water repellent properties emulsified in water using a small amount of surfactant, or dispersed/dissolved in a solvent. It can be coated with drying and heat treatment depending on the purpose.

The thickness of the film of the present invention is not particularly limited.

Usually, a thickness of 25 to 250 μm is preferably used.

Further, in order to improve the flexibility of the film, a plasticizer may be added to an extent that does not impair the performance of the film. Glycols are generally used as plasticizers. For example, ethylene glycol, trimethylene glycol, tetramethylene glycol, pentamethylene glycol, hexamethylene glycol, propylene glycol, glycerin.

2.3-butanediol, 1,3-butanediol.

Examples include dethylene glycol, +-liethylene glycol, and the like.

Furthermore, in order to color the film layer containing polyvinyl alcohol as a main component, a colorant or dye may be added to an extent that does not impair the properties and strength of the film. For example, Henzubulblin 4 B K
zopurpurine4 B K
C), chrysophenine N S (Chrysoph
enine NS), Direct Sky Blue 5
B (Direct Sky Blue 5 B)
.

Nippo First Violet B B (Nippo
nFast Vio-1etB B), Direct Brown M
, Nippon Deve Black Extra (Nippo
n Deep Black extra), Sulfur Indigo R
R).

Sulfur black B C (Sulfur old ack B
C).

Mikethrene Bl RS
ueRS).

Naphtol AS,
Fast] Scarlet G Base (Fast 5
carletG Ba5e).

Rocceline NS (Rocceline NS)
, Acid Brilliant Scarlet 3 R(A
cid Br1lliantScarlet 3 R)
+Chrome Green F
, ChromeBlack AC
).

Rhodamine B (Rhodamine B), Celliton Fast Pink F3 B (Celliton
Fast PinkF3B).

Cellito First Blue F F R (Cellito
n FastBlue FFR), etc.

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

Next, FIG. 1 shows an example of an excretion treatment device in which the storage bag for an excretion treatment device of the present invention is suitably used.

The explanation will be based on the drawings.

The crushing suction tool (1) has a 9-oscillation vibrator inside.

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 in the crushing suction tool via the cable (5). The liquid feeding pump (6) warms an enema liquid (7) such as an enema liquid that is isotonic or harmless to living bodies such as physiological saline with a preheater (8), and then heats the enema liquid (7), such as an enema liquid that is isotonic or harmless to living bodies, such as physiological saline, and sends it to the irrigation tube (9) and the crushing suction device (1). ) into the rectum. The storage container (10) includes a suction tube (3) from the crushing suction tool (1) and a suction pump (
12) is connected to the suction duplex (11),
The storage bag (13) of the present invention is built into the storage container (10) and connected to the suction tube (3) by a stopper (14). The storage bag (13) stores excrement such as feces that passes through the suction tube (3) via the crushing suction tool (1).

The power to suck excrement into the storage bag (13) is provided by 1 suction pump (
12) and delivered via the suction tube (11).

(Example) The present invention will be explained in detail below based on examples.

Example 1 Polyvinyl alcohol (hereinafter F-) is abbreviated as V8. )(
UF-170M, made by Nichika Q Kiku, degree of saponification 95°5~
97.5 mol%) in a beaker and add 90% distilled water.
After the mixture was sufficiently swollen, PVA was dissolved in a hot water bath at 590°C with strong stirring. A solution of 1.17 g of aluminum sulfate dissolved in 10 g of distilled water was added to this melt under stirring and mixed. After defoaming the air bubbles in the solution, the mixed solution was cast onto a polyethylene terephthalate film and air-dried overnight at room temperature. The obtained film was designated as A film.

Next, AC-
650 (manufactured by Asahi Glass ■) was uniformly applied in an amount of about 2 mfl, dried at room temperature for about 1 hour, and then heated at 100°C for about 10 minutes.

Comparative Example 1 The same operation as in Example 1 was performed except that a heat treatment was performed at 100° C. for about 10 minutes without applying a water repellent.

Example 2 The same operation as in Example 1 was performed except that 1.17 g of aluminum sulfate was replaced with 0.21 g of boric acid.

Comparative Example 2 The same operation as in Example 2 was performed except that a heat treatment was performed at 100° C. for about 10 minutes without applying a water repellent.

Example 3 In Example 1, PVA (UF-170M) was
A (Ur”-180, made by Unideka ■, degree of genification 87~
The same operation as in 1 was performed except that 89 mol%) was used.

Comparative Example 3 The same operation was performed as in Example 3, except that the water repellent was not applied and heat treatment was performed at 100°C for about 10 minutes.

Example 4 In Example 3, aluminum sulfate! , Uno, 1.17 F
The same operation was performed except that X was replaced with 0.21 g of boric acid.

Comparative Example 4 In Example 4, 100° without applying FBI liquid
The same operation was carried out except that heat treatment at C for about 10 minutes was added.

Example 5 In Example 1, PVA (tJF-170M) was
VA (E-180, manufactured by Unitika ■, degree of genification 87-8
The same operation was performed except that the concentration was changed to 9 mol %).

Comparative Example 5 The same operation as in Example 5 was performed except that a water repellent was not applied and heat treatment was applied at 100°C for about 10 minutes.

Test Example A 10 cm square storage bag for an excrement disposal device was prepared by heat-sealing the films obtained in Examples 1 to 5 with the water-repellent treated side facing inside. Similarly, similar bags were made from the films of Comparative Examples 1 to 5.

Distilled water (30M1) was added to the bag and observed how it changed. The results are shown in Table-1.

Further, a 10 cm square of each film was added to 5011 distilled water, and changes in the situation were observed while stirring. The results are shown in Table-2.

As is clear from Table 1, the storage bag for excretory devices of the present invention has water retention properties for more than 1 hour, and Table 2
As is clear from the above, it has the property of being dissolved or dispersed in water within a few minutes.

Table 1: Water retention status of 1-capacity bags Table 2: Solubility of each film (effects of the invention) When water seeps in from one side.

Since we use a film that easily dissolves or disperses in water in a short period of time, it can be used for 2 hours after collecting feces or urine.
The bag can be disposed of in a flush toilet, etc., and dissolved or dispersed in polyplastic water.

[Brief explanation of the drawing]

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

Claims (1)

[Claims] (1) A film made of polyvinyl alcohol with a degree of saponification of 70 to 98% and a polyvinyl alcohol gelling promoter, coated with a water repellent on one side, with the surface coated with the water repellent on the inside. A storage bag for excrement disposal equipment that is shaped to be.