JP2927772B2 - Paper diapers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable diaper used for humans or animals and capable of easily and rapidly detecting glucose, protein, occult blood, urobilinogen or pH in urine of humans or animals.

[0002]

2. Description of the Related Art It is extremely important to easily and quickly detect the presence and amount of each main component contained in urine when detecting, diagnosing, or treating a disease. For example, knowing the amount of glucose in urine quickly and easily is essential for early detection, diagnosis and management of diabetes. Also, quickly and easily knowing the amount of protein in urine plays an important role in early detection and diagnosis and treatment of kidney disease. Further, knowing the amount of urobilinogen in urine plays a major role in diagnosing liver function.

[0003]

As described above, glucose, protein, occult blood, urobilinogen or pH in urine can be measured.
Simple and quick detection is extremely important. However, in the past, for the detection of glucose and the like in urine, a test piece formed by sticking a mouthpiece impregnated with a test reagent to a support has been used. There is a problem that it is difficult to easily and early detect an animal disease. Therefore, an object of the present invention is to provide a disposable diaper that can easily and easily detect a disease of a human or an animal at an early stage.

[0004]

According to the present invention, there is provided a nonwoven fabric having a property of passing a liquid, a synthetic resin film having a property of not allowing a liquid to pass through, and sandwiched between the nonwoven fabric and the synthetic resin film. And at least one sheet of paper and a polymer-containing sheet, wherein the paper and polymer-containing sheet contain a reagent composition comprising (1) a sugar oxidase, a peroxidase, an oxidizable indicator, a binder and a stabilizer. Glucose detection ink composition dissolved or dispersed in water-insoluble solvent, (2) indicator showing protein error, pH
Ink composition for protein detection in which a reagent composition comprising a buffer, a protein-adsorbing ion exchanger, a binder and a water-absorbing powder is dissolved or dispersed in a solvent, (3) pH indicator, quaternary ammonium salt Or a pH detection ink composition in which a reagent composition comprising an amine salt, a binder and a water-absorbing powder is dissolved or dispersed in a solvent, (4) an oxidizable indicator, an organic peroxide, a binder, and A reagent composition comprising, if necessary, a surfactant and a background dye,
An ink composition for occult blood detection dissolved or dispersed in a non-aqueous solvent, or (5) a reagent composition comprising a dye precursor which reacts with urobilinogen to form a color, a strongly acidic buffer, a binder and a water-absorbing powder. An ink composition for urobilinogen detection, which is dissolved or dispersed in a non-aqueous solvent,
Alternatively, (6) a disposable diaper characterized in that two or more of the ink compositions are printed so that at least one of glucose, protein, pH, occult blood and urobilinogen in urine can be detected.

[0005]

According to the disposable diaper of the present invention, since the required ink composition is composed of a printed material, the discoloration reaction between a body fluid such as urine of a human or an animal and this ink composition easily causes a disease of a human or an animal. It can be found easily and early.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on embodiments with reference to the drawings. FIG. 1 is a perspective view of a disposable diaper according to a first embodiment of the present invention. The sheet of the disposable diaper according to the present embodiment has a property of allowing liquid to pass therethrough. Paper 2 and polymer-containing sheet 3 which are one or more third sheets sandwiched between synthetic resin film 4 as a second sheet having properties and nonwoven fabric 1 and synthetic resin film 4
It is composed of

Further, the ink composition is impregnated, coated or printed on at least one of the nonwoven fabric 1, the paper 2 and the polymer-containing sheet 3. The number of the third sheets may be one or more of paper and nonwoven fabric, and the number is not particularly limited. The first to third sheet materials are not limited to the above-mentioned paper, polymer-containing sheet, film and the like.

[0008] In this embodiment, at least one of an ink composition for detecting glucose, an ink composition for detecting protein, an ink composition for detecting pH, an ink composition for detecting occult blood, and an ink composition for detecting urobilinogen is used. It consists of a material to be printed, coated or impregnated. Hereinafter, the ink composition will be described in detail. First, the glucose detection ink composition is a sugar oxidase, a peroxidase, an oxidizable indicator,
A reagent composition comprising a binder and a stabilizer is dissolved or dispersed in a water-insoluble solvent.

[0009] Glucose in body fluids reacts with oxygen in the air by the action of glucose oxidase such as glucose oxidase, and is finally oxidized to gluconic acid and hydrogen peroxide.
The generated hydrogen peroxide generates nascent oxygen by the action of peroxidase, and this oxygen immediately reacts with an oxidizable indicator such as ortho-tolidine to cause the indicator to develop color. The presence or absence of glucose in the body fluid and the amount thereof are determined semi-quantitatively by the degree of the color development. The color density can be improved by using a non-oxidizing indicator such as glucose oxidase, peroxidase or orthotolidine which is a sugar oxidase, or an aliphatic carboxylate of ascorbic acid which is a sensitivity regulator.

As the binder, (1) a synthetic resin such as a polyester resin, an alkyd resin, a polyurethane resin, a polystyrene resin, and an acrylic resin; and (2) methyl cellulose, ethyl cellulose, hydroxyethyl cellulose,
Cellulose derivatives such as carboxymethylcellulose (3) Consisting of natural polymers such as starch, polysaccharides, gelatin, casein, sodium alginate and combinations of the above (1) to (3).

Examples of the stabilizers include antioxidants such as p-methoxyphenol and the like, surfactants such as tophenols, glycerol monoacetate and glycerol monooleate, and glycerol esters and fatty acid esters of ascorbic acid. Consists of

Examples of dissolution or decomposition in non-aqueous solvents include benzene and toluene as aromatic hydrocarbons, methyl eryl ketone as aliphatic hydrocarbons, ethyl acetate as esters, and n-butanol as alcohols. Dissolves or decomposes. As other components, kaolin as a water-absorbing powder, synthetic silica, calcium carbonate, etc., as a lubricant, a nonionic surfactant, an anionic surfactant,
Cationic surfactants, polyethylene glycols and the like are used.

The ink composition for protein detection is prepared by dissolving or dispersing a reagent composition comprising an indicator showing a protein error, a pH buffer, a protein-adsorbing ion exchanger, a binder and a water-absorbing powder in a solvent. Consisting of When an indicator indicating a protein error maintained at an acidic pH, for example, a protein in a body fluid to be examined comes into contact with tetrabromo blue, the indicator and the protein form a complex to form a complex from an acidic yellow color to yellow. The color changes to blue, which is a natural color, and the degree of the color change depends on the amount of protein present in the test subject fluid. The protein-adsorbing ion exchanger is a weakly acidic cation exchanger having a carboxyl group of a hydrophilic ion exchanger, and is a synthetic resin such as a styrene or acrylic resin. The conjugate is a maleic anhydride copolymer esterified with alcohols.

As the maleic anhydride copolymer resin,
Methyl vinyl ether, isobutylene, or an ester obtained by reacting a maleic anhydride copolymer and an alcohol with styrene is preferable. Examples of the maleic anhydride copolymer include (1) polyester resin, alkyd resin, polyethane resin, polystyrene resin, acrylic resin, vinyl chloride resin, vinyl chloride copolymer resin, polyvinyl butyral resin, polyvinyl alcohol resin, and anhydride. Synthetic resins such as maleic acid-based copolymer resins, (2) cellulose derivatives such as methylcellulose, ethylcellulose, hydroxyethylcellulose and carboxymethylcellulose; and (3) natural polymers such as starch, polysaccharides, gelatin, casein and sodium alginate. is there.

The water-absorbing powder includes kaolin, synthetic silica, glass, cellulose block, microcrystalline cellulose,
Ion exchange cellulose, ion exchange resin, calcium carbonate, magnesium carbonate, and aluminum silicate are used. As the solvent, aromatic hydrocarbon, aliphatic hydrocarbon,
Use non-aqueous solvents such as esters and alcohols. As other components, a nonionic surfactant, an anionic surfactant, a cationic surfactant, polyethylene glycols as a lubricant, and a water-swellable resin having a carboxyl group as a shape-retaining agent are preferable.

As an indicator showing a protein error, tetrabromophenol blue, tetrabromothymol blue and the like are preferable. The pH buffer is used to maintain the pH value near the pH at which the indicator showing the protein error causes a color change. For example, if the pH buffer gives pH 3 to 4 to the reagent composition, citric acid and citric acid are used. Combinations of sodium acid salts are preferred.

The ink composition for detecting pH is obtained by dissolving or dispersing a reagent composition comprising an indicator, a quaternary ammonium salt or an amine salt, a binder and a water-absorbing powder in a solvent. The pH of the body fluid to be tested is measured by judging the color tone of the indicator by suitably combining several types of indicators whose color tone changes depending on the pH. An indicator whose color tone changes according to the hydrogen ion concentration of the test subject fluid can be used. In addition, by selecting and combining a plurality of indicators, a wide range of pH can be measured. For example, if methyl red and bromothymol blue are used in combination as pH indicators, pH 5-9
The pH can be determined within the range described above.

Quaternary ammonium salts or amine salts; By blending an appropriate amount of the quaternary ammonium salt in the reagent composition, the browning of the color once developed with time is greatly suppressed, and a clear color is obtained. As the quaternary ammonium salt, an alkyltrimethylammonium salt, an alkyldimethylbenzine ammonium salt, a sapamin-type ammonium salt and the like are used. Of these, alkyldimethylbenzine ammonium salts are preferred. In addition, a cationic surfactant such as a primary amine salt or a secondary amine salt, or polyethylene glycol can also be used.

Examples of the binder include natural hydrophilic high molecular compounds such as potato starch, potato starch, konjac flour, seaweed, agar, sodium alginate, troloioi, tongaro gum, gum arabic, glue, levan, gelatin, casein, collagen, etc. Methylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, cellulose derivatives such as carboxymethylcellulose, carboxymethyl starch, semi-synthetic hydrophilic polymer compounds such as derivatives such as dialdehyde starch, polyvinyl alcohol, polyacrylamide, polyvinylpyrrolidone or these Synthetic polymer compounds such as copolymers, sodium polyacrylate, and polyethylene oxide are used.

Examples of the water-soluble polymer compound capable of forming a film include cellulose resins such as nitrocellulose, cellulose acetate and ethyl cellulose, polyester resins, alkyd resins, polyurethane resins, epoxy resins, acrylic resins, vinyl chloride resins, epoxy resins and emulsions. Are used. Of these, urethane resins and polyvinyl butyral are preferred because they do not adversely affect the color reaction of the pH indicator.

The water-absorbing powder, when incorporated in the reagent composition, promotes the contact between the body fluid to be tested and the pH indicator, and promotes the color reaction with the indicator. As such a water-absorbing powder, those exhibiting extremely acidic or alkaline properties when contacted with water are not suitable. Kaolin, synthetic silica, glass, cellulose block, calcium carbonate, aluminum silicate and the like are used.

The solvent is preferably a solvent capable of uniformly and stably dissolving or dispersing reagents, in particular, a binder. Specifically, non-aqueous solvents such as aromatic hydrocarbons, aliphatic hydrocarbons, esters, and alcohols, or water, or mixtures thereof are used. In addition to the above components, a small amount of a wetting agent, for example, a nonionic surfactant, an anionic surfactant, a cationic surfactant, polyethylene glycols or the like can be incorporated into the pH detection reagent composition. . As the basic substance, ammonium hydroxide, an alkali metal hydroxide, an alkaline earth metal hydroxide or the like is used.

The ink composition for occult blood detection comprises a reagent composition comprising an oxidizable indicator, an organic peroxide, a binder, and, if necessary, a surfactant and a background dye, dissolved or dissolved in a non-aqueous solvent. Become distributed. When occult blood is present in a body fluid, the occult blood combines with, for example, an organic peroxide such as cumene hydroperoxide to generate nascent oxygen, which is immediately oxidized by ortho-tolidine, benzidine, or the like. The indicator reacts with the sex indicator to develop color. Cumene hydroperoxide or the like is used as the organic oxide.

As the binder, (1) polyester resin, alkyd resin, polyurethane resin, polystyrene resin, acrylic resin, epoxy resin, vinyl chloride resin, vinyl chloride copolymer resin, polyvinyl butyral resin,
Synthetic resins such as polyvinyl alcohol resin, (2)
Cellulose derivatives such as methylcellulose, ethylcellulose, hydroxyethylcellulose and carboxymethylcellulose; (3) natural polymers such as starch, polysaccharides, gelatin, casein, sodium alginate and combinations thereof.

Other components include water-absorbing powder kaolin, synthetic silica, glass, cellulose block,
Microcrystalline cellulose, ion exchange cellulose, calcium carbonate, magnesium carbonate, aluminum silicate and the like are used. As the solvent, those capable of uniformly and stably dissolving or dispersing the reagents, particularly the binder, are preferable. Specifically, aromatic hydrocarbons, aliphatic hydrocarbons, esters,
A non-aqueous solvent such as alcohols or water or a mixture thereof is used. As the lubricant, a nonionic surfactant, an anionic surfactant, a cationic surfactant, polyethylene glycols or the like is used. Further, a background dye such as oil yellow may be added to make the color tone of the indicator easier to see.

The ink composition for urobilinogen detection is as follows:
A reagent composition comprising a dye precursor which reacts with urobilinogen to form a color, a strong oxidation buffer, a binder, and a water-absorbing powder is dissolved or dispersed in a non-aqueous solvent. When urobilinogen is present in body fluids, urobilinogen becomes
For example, a color is formed by binding to urobilinogen such as P-dimethylaminobenzaldehyde, and a color is formed by binding to a dye precursor.By detecting the presence and degree of this color formation, it is determined whether urobilinogen is present in the body fluid. Is determined. The dye precursor that forms a color by reacting with urobilinogen is p-dimethylaminobenzaldehyde, p-dimethylaminobenzaldehyde.
-Diethylaminobenzaldehyde, aromatic diazonium salts, p-methoxybenzenediazonium tetrafluoroborate and the like are used.

Since the reaction between urobilinogen and the dye precursor proceeds well in the acidic region, a strongly acidic buffer is added to the reagent composition. As the strongly acidic buffer, metaphosphoric acid, sulfosalicic acid, hexamic acid, oxalic acid and the like are used. Examples of the binder include (1) synthetic resins such as polyester resin, alkyd resin, polyurethane resin, polystyrene resin, acrylic resin, epoxy resin, vinyl chloride resin, polyvinyl alcohol resin, and maleic anhydride copolymer; A) cellulose derivatives such as methylcellulose, ethylcellulose, hydroxyethylcellulose and carboxymethylcellulose; (3) natural polymers such as starch, polysaccharides, gelatin, casein, sodium alginate and combinations thereof.

Other components include water-absorbing powder kaolin, synthetic silica, glass, cellulose block,
Solvents such as microcrystalline cellulose, ion-exchange cellulose, ion-exchange resin, calcium carbonate, magnesium carbonate, and aluminum silicate are preferably those capable of uniformly and stably dissolving or dispersing reagents, particularly binders. Specifically, non-aqueous solvents such as aromatic hydrocarbons, aliphatic hydrocarbons, esters, and alcohols, or water, or mixtures thereof are used. As the lubricant, a nonionic surfactant, an anionic surfactant, a cationic surfactant, polyethylene glycols or the like is used.

[0029]

As described above, the disposable diaper of the present invention has an effect that a disease of a human or an animal can be easily and easily detected at an early stage.

[Brief description of the drawings]

FIG. 1 is a perspective view of a paper diaper according to a first embodiment of the present invention.

[Explanation of symbols]

 1,3 sheet 2 paper 4 synthetic resin film

Claims (1)

(57) [Claims] 1. A nonwoven fabric having a property of passing a liquid,
Synthetic resin film having a property that liquid does not pass, comprising one or more sheets of paper and polymer-containing sheet sandwiched between the nonwoven fabric and the synthetic resin film, wherein the paper and polymer-containing sheet , (1) sugar oxidase,
A glucose detection ink composition comprising a reagent composition comprising a peroxidase, an oxidizable indicator, a binder and a stabilizer dissolved or dispersed in a water-insoluble solvent, (2) an indicator showing a protein error, a pH buffer A reagent composition comprising a protein adsorbing ion exchanger, a binder and a water-absorbing powder dissolved or dispersed in a solvent; (3) a pH indicator, a quaternary ammonium salt or an amine PH detecting ink composition in which a reagent composition comprising a salt, a binder and a water-absorbing powder is dissolved or dispersed in a solvent, (4) an oxidizable indicator, an organic peroxide, a binder, and An ink composition for occult blood detection, wherein a reagent composition comprising a surfactant and a background dye is dissolved or dispersed in a non-aqueous solvent, or (5) urobilinogen An ink composition for detecting urobilinogen, wherein a reagent composition comprising a dye precursor that reacts to form a color, a strongly acidic buffer, a binder, and a water-absorbing powder is dissolved or dispersed in a non-aqueous solvent; Two or more of the ink compositions are glucose, protein,
A disposable diaper printed so that at least one of pH, occult blood and urobilinogen can be detected.