JPH08126661A - Absorptive article - Google Patents

Abstract

PURPOSE: To provide an absorptive article which suppresses unpleasant odors accompanied with urination, defecation, excretion, etc., and from which the time of urination, defecation, excretion, etc., can be confirmed by releasing of a perfume. CONSTITUTION: This absorptive article which consists of a liq.-permeable surface sheet, a liq.-impermeable anti-leakage sheet and an absorptive layer provided between both sheets incorporates a perfume precursor substance which is decomposed into a perfume by the action of an enzyme and the enzyme for decomposing the perfume precursor substance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to absorbent articles such as sanitary napkins, disposable diapers and incontinence pads.

[0002]

2. Description of the Related Art Conventional absorbent articles generally have, as a basic structure, three layers of a liquid-permeable surface sheet, an absorbent layer, and a liquid-impermeable leak-proof sheet. A paper diaper will be described as a representative example of the above because this is basically the same as other absorbent articles such as sanitary napkins and pads for incontinence. Conventional disposable diapers are for infants and adults, and demand is expanding due to their simplicity. Furthermore, with the advent of an aging society in recent years, demand for disposable diapers for adults is also increasing. Most of these paper diapers are designed to absorb urine by using a water-absorbent polymer and prevent dirt from leaking (see, for example, Japanese Patent Publication No. 3-17498). Further, a paper diaper to which a fragrance is added to reduce unpleasant odor is also commercially available.

[0003]

As described above, since absorbent articles typified by the conventional paper diapers can contain a large amount of urine and feces by using a water-absorbing polymer or the like, the wearing time is inevitable. The current situation is that the baby becomes sick and gives discomfort to infants, sick people and the elderly. The present invention improves the drawbacks of the absorbent article typified by such a conventional paper diaper, can suppress unpleasant odor, and can confirm the timing of urination, defecation, etc. by releasing the aroma. It is intended to provide a sex article.

[0004]

Means for Solving the Problems As a result of intensive studies for solving the above-mentioned problems, the present inventors have found that a perfume precursor substance which is decomposed into an aroma by the action of an enzyme in an absorbent article, and the perfume precursor. The present inventors have obtained the finding that the above problem can be solved by adding an enzyme that decomposes a body substance, and arrived at the present invention based on this finding.

That is, according to the present invention, an absorbent article comprising a liquid-permeable surface sheet, a liquid-impermeable leak-proof sheet, and an absorbent layer provided between both sheets is decomposed by the action of an enzyme to form a fragrance. A gist of an absorbent article is characterized by containing a fragrance precursor substance and an enzyme that decomposes the fragrance precursor substance.

The present invention will be described in detail below. The absorbent article of the present invention has, as its basic structure, a liquid-permeable surface sheet, an absorbent layer, a liquid-impermeable leak-proof sheet, and specific examples thereof include a paper diaper, a sanitary napkin, and an incontinence pad. Etc. In the present invention, to impart a perfume precursor substance and enzyme to these absorbent articles,
The fragrance precursor substance and the enzyme are preferably adsorbed or retained on the liquid-permeable surface sheet or the absorption layer,
It may be adsorbed or held inside the liquid-impermeable leak-proof sheet. At this time, the fragrance precursor substance and the enzyme may be adsorbed or held on the same material, or may be adsorbed or held on different materials.

The method of adsorption or retention is not particularly limited, but the perfume precursor substance may be retained in powder form in the absorbent article. On the other hand, since the enzyme is also in a powder state, it may be held in the absorbent article as it is.
Further, since the fragrance precursor substance and the enzyme are water-soluble, both substances may be dissolved in water, soaked in any of the materials constituting the absorbent article, and then dried.

The perfume precursor substance used in the present invention is not particularly limited as long as it is decomposed by a hydrolase to produce a perfume component, and known glycosides, glycerides, peptide derivatives and amino acid derivatives of perfume. Etc. can be used. These fragrance precursor substances can be synthesized by organic synthesis, enzymatic synthesis, or a combination thereof.

Examples of glycosides of the above-mentioned flavors include alcohol-type flavors and glycosides composed of known monosaccharides, oligosaccharides and polysaccharides. Examples of monosaccharides include glucose, galactose and mannose. Glucosamine, galactosamine, hexoses such as mannosamine, arabinose, xylose, pentoses such as ribose, and the like,
Examples of oligosaccharides include sucrose, lactose, trehalose, maltose, cellobiose, isomaltose, gentiobiose, laminaribiose, chitobiose, mannobiose, maltotriose, hydrolysates such as starch or cellulose, and the like, and the polysaccharides. Examples of the starch include starch and cellulose. Of these, glucose, galactose, mannose, glucosamine, maltose, and lactose are particularly preferable.

Examples of alcoholic flavors include green leaf alcohol, 3-octenol, 9-decenol,
Linalool, geraniol, nerol, citronellol, rosinol, dimethyloctolol, hydroxycitronellol, tetrahydrolinalool, lavanguol, mugol, myrcenol, terpineol, 1-
Menthol (L-menthol), borneol, isobregor, tetrahydromugol, bornylmethoxycyclohexanol, nobor, farnesol, nerolidol, santalol, sandalol, cedrol, vetiverol, patchouli alcohol, benzyl alcohol, β-phenylethyl alcohol, γ-phenylpropyl alcohol, cinnamic alcohol, anise alcohol, α-amylcinnamic alcohol, dimethylbenzylcarbinol, methylphenylcarbinol,
Examples thereof include dimethylphenylcarbinol, β-phenylethyldimethylcarbinol, β-phenylethylmethylethylcarbinol, phenoxyethyl alcohol, phenyl glycol, and tert-butylcyclohexanol.

Further, as the above glyceride derivative,
Examples thereof include monoglyceride, diglyceride, and triglyceride of glycerin and a carboxylic acid flavor, and examples of the carboxylic acid flavor include benzoic acid, cinnamic acid, phenylacetic acid, hydrocinnamic acid, and the like.

Further, examples of the above-mentioned amino acid or peptide derivative include alcohol type, carboxylic acid type,
Examples thereof include amino acid or peptide derivatives of amine-based flavors, and examples of amine-based flavors include indole, skatole, 2-methyltetrahydroquinoline, and 6-methylquinoline.

The enzyme used in the present invention is
The enzyme acting on the glycoside is not particularly limited as long as it is an enzyme capable of hydrolyzing a fragrance precursor substance.
Examples include α-glucosidase, β-glucosidase, α-amylase, β-amylase, α-galactosidase, β-galactosidase, α-mannosidase, β-mannosidase, α-glucosaminidase, β-glucosaminidase, β-fructofuranosidase and the like. In addition, as the enzyme acting on glyceride, lipase,
Esterase etc. are mentioned. Furthermore, as an enzyme acting on an amino acid or a peptide derivative, peptidase,
Examples include proteases such as papain, pepsin, and trypsin.

The amount of the fragrance precursor substance used at this time varies depending on the absorbent article and the type of the fragrance used. For example, in the case of a disposable diaper, 0.01 to 20% by weight is used. Preferably 0.05-10
%, And more preferably about 0.1 to 5% by weight. The amount of the enzyme used is not particularly limited as long as it is capable of decomposing the fragrance precursor substance by an enzymatic reaction, but is preferably 0.01 to 20% by weight with respect to the fragrance precursor substance, and more preferably It is preferably about 0.1 to 10% by weight.

[0015]

According to the present invention, by combining a fragrance precursor substance and an enzyme, a hydrolytic enzyme acts for the first time upon urination or defecation to an absorbent article, and the fragrance precursor substance is hydrolyzed to release a scent. , By the generation of this scent,
It is possible to confirm whether urination or defecation has occurred.

[0016]

EXAMPLES Next, the present invention will be specifically described with reference to examples.

Reference Example 1 (Synthesis of phenethyl alcohol β-galactoside) Phenethyl alcohol (special grade reagent manufactured by Wako Pure Chemical Industries, Ltd.) 4.0
g and 20 g of lactose in 4 mM potassium phosphate buffer (p
H7.0) dissolved in 500 ml. In addition, β
-10000 U of galactosidase (Sumilacto GLL, manufactured by Shin Nippon Kagaku Co., Ltd.) was added, reacted at 40 ° C for 20 hours, and then treated at 100 ° C for 5 minutes to stop the reaction. The unreacted raw materials in the obtained reaction product were extracted and removed with chloroform, and then the aqueous layer fraction was passed through a 50 ml DIAION HP-20 (manufactured by Mitsubishi Kasei) column to obtain phenethyl alcohol β. -Adsorbed galactoside. After washing this column with 1 liter of distilled water, phenethyl alcohol β-galacotoside was eluted with 500 ml of methanol. The obtained phenethyl alcohol β-galactoside fraction was concentrated under reduced pressure,
The residue was triturated in an ethanol-hexane system to obtain 1.51 g of phenethyl alcohol β-galactoside.

Example 1 0.1 g of phenethyl alcohol β-galactoside synthesized in Example 1 and lactase (lactase F Amano, Amano Pharmaceutical Co., Ltd.) were placed in a water absorbing layer of a commercially available disposable diaper (trade name: Mary's S size, weight 50 g, manufactured by Kao Corporation). Manufactured) was held. The paper diaper thus produced was put on, and it was examined by a panel test whether or not the scent of phenethyl alcohol was released by urination and defecation. Also,
In the same manner, it was examined whether the paper diaper holding the fragrance precursor substance and the enzyme and the paper diaper not holding the odor had an unpleasant odor with urination and defecation. Table 1 shows the results. The evaluation criteria are as shown below.

Evaluation Criteria Emission of aroma associated with excretion ○: Smell was confirmed △: Slight scent was confirmed ×: Smell was not confirmed, unpleasant odor was generated ○: No unpleasant odor △: Slight unpleasant odor was found × : There is an unpleasant odor

[0020]

[Table 1]

As shown in Table 1, by using the disposable diaper of the present invention, unpleasant odor caused by urination and defecation can be suppressed, and the timing of urination and defecation can be confirmed by the release of aroma. From this result, it is understood that the wearer's urination and discomfort after defecation can be minimized by using the disposable diaper of the present invention.

Example 2 Commercially available incontinence pad (trade name of Unicharm Co., Ltd.
0.1 g of phenethyl alcohol β-galactoside synthesized in Reference Example 1 and 0.05 g of lactase (lactase F Amano, manufactured by Amano Pharmaceutical Co., Ltd.) were held in the water absorbing layer of the Lifree urine collecting pad (for men). The incontinence pad thus prepared was attached, and it was examined by a panel test whether or not the scent of phenethyl alcohol was released with urination and defecation. In addition, it was examined by a panel test whether or not there was an unpleasant odor associated with urination or defecation between the incontinence pad holding the fragrance precursor substance and the enzyme and the incontinence pad not holding it. The results are shown in Table 2. The evaluation criteria are the same as in Example 1.

[0023]

[Table 2]

As shown in Table 2, by using the incontinence pad of the present invention, unpleasant odor caused by urination and defecation can be suppressed, and the time of urination and defecation can be confirmed by the release of aroma. . From this result, it is understood that the wearer's urination and discomfort after defecation can be minimized by using the incontinence pad of the present invention.

Example 3 Commercially available sanitary napkin (trade name, manufactured by Unicharm Co., Ltd.
0.1 g of phenethyl alcohol β-galactoside synthesized in Reference Example 1 and 0.05 g of lactase (lactase F Amano, manufactured by Amano Pharmaceutical Co., Ltd.) in the water absorbing layer of Sophie Sarah).
Was held. The sanitary napkin produced in this manner was put on, and it was examined by a panel test whether or not the scent of phenethyl alcohol was released with bleeding. Also,
A panel test was conducted to examine whether or not the sanitary napkin with and without the perfume precursor substance and enzyme had an unpleasant odor with bleeding. Table 3 shows the results. The evaluation criteria are the same as in Example 1.

[0026]

[Table 3]

As shown in Table 3, by using the sanitary napkin of the present invention, an unpleasant odor was able to be suppressed because the aroma was released with bleeding.

Reference Example 2 (Synthesis of citronellol β-galactoside) 5 g of citronellol (special grade reagent manufactured by Wako Pure Chemical Industries, Ltd.) and 25 g of lactose were dissolved in a 5 mM phosphate buffer solution (pH 7.0) containing 40% by volume of acetonitrile. And β-galactosidase (Sumilacto GLL, manufactured by Shin Nippon Chemical Co., Ltd.)
After adding 10000 U and reacting at 30 ° C. for 3 hours,
Acetonitrile in the reaction solution was distilled off under reduced pressure with an evaporator, and extracted with an equal volume of chloroform three times. After decompressing the extract to remove chloroform contained in the aqueous layer,
This aqueous solution is called DIAION HP-2
The solution was passed through a 0 (manufactured by Mitsubishi Kasei) column. After washing this column with 1 liter of distilled water, the citronellol β-galactoside was eluted with 500 ml of methanol. The obtained eluate was concentrated under reduced pressure and then passed through a silica gel (silica gel for chromatography by Wako Pure Chemical Industries, Ltd.) column, and chloroform: methanol was 9: 1, 8: 2,
Elution was carried out by the stepwise method using 7: 3 and 6: 4 solutions. This elution fraction was analyzed by thin layer chromatography, and the fraction containing citronellol β-galactoside was concentrated under reduced pressure to give 400 mg of citronellol β.
-Galactoside was obtained.

Example 4 Commercially available incontinence pad (trade name, manufactured by Unicharm Co., Ltd.
0.2 g of citronellol β-galactoside synthesized in Reference Example 2 in the water-absorbent layer of the Lifree urine collecting pad (for men)
And lactase (Lactase F Amano, manufactured by Amano Pharmaceutical Co., Ltd.)
0.2 g was retained. The incontinence pad thus produced was attached, and it was examined by a panel test whether or not the scent of citronellol was released with urination and defecation. In addition, it was examined by a panel test whether or not there was an unpleasant odor associated with urination or defecation between the incontinence pad holding the fragrance precursor substance and the enzyme and the incontinence pad not holding it. The results are shown in Table 4. The evaluation criteria are the same as in Example 1.

[0030]

[Table 4]

As shown in Table 4, by using the incontinence pad of the present invention, unpleasant odor caused by urination and defecation can be suppressed, and the time of urination and defecation can be confirmed by the release of aroma. . From this result, it is understood that the wearer's urination and discomfort after defecation can be minimized by using the incontinence pad of the present invention.

Example 5 Commercially available disposable diaper (trade name: Mary's S, manufactured by Kao Corporation)
In the water absorption layer (size), 0.2 g of citronellol β-galactoside synthesized in Reference Example 2 and 0.1 g of lactase (lactase F Amano, manufactured by Amano Pharmaceutical Co., Ltd.) were held. The paper diaper thus produced was put on, and it was examined by a panel test whether or not the scent of citronellol was released with urination and defecation. In addition, it was examined by a panel test whether or not the paper diaper holding the fragrance precursor substance and the enzyme and the paper diaper not holding the odor have unpleasant odors due to urination and defecation. The results are shown in Table 5. The evaluation criteria are the same as in Example 1.

[0033]

[Table 5]

As shown in Table 5, by using the disposable diaper of the present invention, unpleasant odor caused by urination and defecation can be suppressed, and the timing of urination and defecation can be confirmed by the release of aroma. From this result, it is understood that the wearer's urination and discomfort after defecation can be minimized by using the incontinence pad of the present invention.

Example 6 Commercially available sanitary napkin (trade name, manufactured by Unicharm Co., Ltd.
In the water absorbing layer of Sophie Sara), 0.2 g of citronellol β-galactoside synthesized in Reference Example 2 and 0.2 g of lactase (lactase F Amano, manufactured by Amano Pharmaceutical Co., Ltd.) were held. The sanitary napkin produced in this manner was attached, and it was examined by a panel test whether or not the scent of citronellol was released with bleeding. In addition, it was examined by a panel test whether or not the sanitary napkin holding the fragrance precursor substance and the enzyme and the sanitary napkin not holding the odor have an unpleasant odor with bleeding. Table 6 shows the results.
The evaluation criteria are the same as in Example 1.

[0036]

[Table 6]

As shown in Table 6, by using the sanitary napkin of the present invention, an unpleasant odor was able to be suppressed because the aroma was released with bleeding.

Reference Example 3 (Synthesis of geraniol β-galactoside) 5 g of geraniol (special grade reagent manufactured by Wako Pure Chemical Industries, Ltd.) and lactose 2
5 g was dissolved in 500 ml of a 5 mM phosphate buffer (pH 7.0) containing 40% by volume of acetonitrile, and β-galactosidase (Sumilacto GLL,
10000 U (manufactured by Shin Nippon Kagaku Co., Ltd.) was added, and the mixture was reacted at 30 ° C. for 3 hours. Acetonitrile in the reaction solution was distilled off under reduced pressure with an evaporator, and then extracted three times with an equal volume of chloroform. The aqueous layer fraction was decompressed to remove chloroform contained in the aqueous layer, and the aqueous solution was added to DIAION (DIA).
ION) HP-20 (manufactured by Mitsubishi Kasei) column was passed to adsorb geraniol β-galactoside, the column was washed with 1 liter of distilled water, and then geraniol β-galactoside was eluted with 500 ml of methanol. The obtained eluate was concentrated under reduced pressure and then passed through a silica gel (silica gel for chromatography by Wako Pure Chemical Industries) column, and chloroform: methanol was 9: 1, 8: 2,
Elution was performed by the stepwise method using a solution of 7: 3 and 6: 4. Thin layer chromatography (TLC) of elution fractions
After the analysis in Section 1, the fraction containing geraniol β-galactoside was concentrated under reduced pressure to obtain 420 mg of geraniol β-galactoside.

Example 7 Commercially available incontinence pad (trade name, manufactured by Unicharm Co., Ltd.
0.2 g of geraniol β-galactoside synthesized in Reference Example 3 and lactase (lactase F Amano, manufactured by Amano Pharmaceutical Co., Ltd.) were added to the water absorption layer of the Lifree urine collecting pad (for men).
0.2 g was retained. The incontinence pad thus produced was attached, and it was examined by a panel test whether or not the fragrance of geraniol was released with urination and defecation.
In addition, it was examined by a panel test whether or not there was an unpleasant odor associated with urination or defecation between the incontinence pad holding the fragrance precursor substance and the enzyme and the incontinence pad not holding it. The results are shown in Table 7. The evaluation criteria are the same as in Example 1.

[0040]

[Table 7]

As shown in Table 7, by using the incontinence pad of the present invention, unpleasant odor caused by urination and defecation can be suppressed, and the time of urination and defecation can be confirmed by the release of aroma. . From this result, it is understood that the wearer's urination and discomfort after defecation can be minimized by using the incontinence pad of the present invention.

Example 8 Commercially available paper diapers (trade name: Mary's S, manufactured by Kao Corporation)
In the water absorption layer of (size), 0.2 g of geraniol β-galactoside synthesized in Reference Example 3 and 0.1 g of lactase (lactase F Amano, manufactured by Amano Pharmaceutical Co., Ltd.) were held. The paper diaper thus prepared was put on, and it was examined by a panel test whether or not the fragrance of geraniol was released by urination and defecation. In addition, with a paper diaper holding a fragrance precursor substance and enzyme and a paper diaper not holding it, urination,
A panel test was conducted to examine whether or not there was an unpleasant odor associated with defecation. Table 8 shows the results. The evaluation criteria are the same as in Example 1.

[0043]

[Table 8]

As shown in Table 8, by using the disposable diaper of the present invention, unpleasant odor caused by urination and defecation can be suppressed, and the timing of urination and defecation can be confirmed by the release of aroma. From this result, it is understood that the wearer's urination and discomfort after defecation can be minimized by using the incontinence pad of the present invention.

Example 9 Commercially available sanitary napkin (trade name of Unicharm Co., Ltd.
0.2 g of geraniol β-galactoside synthesized in Reference Example 3 and 0.2 g of lactase (lactase F Amano, manufactured by Amano Pharmaceutical Co., Ltd.) were held in the water absorbing layer of Sophie Sarah. Wear the sanitary napkin produced in this way,
It was examined by panel test whether geraniol scent was released with bleeding. In addition, it was examined by a panel test whether or not the sanitary napkin holding the fragrance precursor substance and the enzyme and the sanitary napkin not holding the odor have an unpleasant odor with bleeding. The results are shown in Table 9. In addition,
The evaluation criteria are the same as in Example 1.

[0046]

[Table 9]

As shown in Table 9, by using the sanitary napkin of the present invention, an unpleasant odor was able to be suppressed because the aroma was released with bleeding.

Reference Example 4 (Synthesis of menthol β-galactoside) 5 g of L-menthol (special grade reagent manufactured by Wako Pure Chemical Industries, Ltd.) and 25 g of lactose in 5 mM potassium phosphate buffer (pH 7.0) containing 40% by volume of acetonitrile. Dissolved in 500 ml. To this, 10000 U of β-galactosidase (Sumilacto GLL, manufactured by Shin Nippon Kagaku Co., Ltd.) was added to give 30
The reaction was carried out at 0 ° C for 4 hours, and then the reaction was stopped by treating at 100 ° C for 5 minutes. Next, acetonitrile in the obtained reaction product was distilled off under reduced pressure with an evaporator, and unreacted raw materials were extracted and removed with n-hexane. After distilling off the hexane in the fraction under reduced pressure, the aqueous layer fraction was passed through a 50 ml DIAION HP-20 (manufactured by Mitsubishi Kasei) column to adsorb menthol β-galactoside and distilled water. After washing the column with 1 liter, menthol β-galactoside was eluted with 500 ml of methanol. The obtained menthol β-galactoside fraction was concentrated under reduced pressure and passed through a 50 ml silica gel (silica gel for chromatography by Wako Pure Chemical Industries, Ltd.) column to adsorb menthol β-galactoside and chloroform: methanol 9: 1. , 8: 2, 7: 3, 6: 4 solutions were used for stepwise elution. The obtained menthol β-galactoside fraction was dried under reduced pressure to obtain 250 mg of menthol β-galactoside.

Example 10 Commercially available incontinence pad (trade name, manufactured by Unicharm)
0.2 g of menthol β-galactoside synthesized in Reference Example 4 and 0.2 g of β-galactosidase (Sumilacto GLL, manufactured by Shin Nippon Kagaku Co., Ltd.) were retained in the water-absorbing layer of the Lifree urine collection pad (for men). The incontinence pad thus produced was attached, and it was examined by a panel test whether or not the scent of menthol was released with urination and defecation. In addition, it was examined by a panel test whether or not there was an unpleasant odor associated with urination or defecation between the incontinence pad holding the fragrance precursor substance and the enzyme and the incontinence pad not holding it. The results are shown in Table 10. The evaluation criteria are the same as in Example 1.

[0050]

[Table 10]

As shown in Table 10, by using the incontinence pad of the present invention, unpleasant odor caused by urination and defecation can be suppressed, and the time of urination and defecation can be confirmed by the release of aroma. . From this result, it is understood that the wearer's urination and discomfort after defecation can be minimized by using the incontinence pad of the present invention.

Example 11 Commercially available paper diapers (trade name: Mary's S manufactured by Kao Corporation)
Size) water-absorbent layer, menthol β synthesized in Reference Example 4
-0.2 g of galactoside and 0.1 g of β-galactosidase (Sumilacto GLL, manufactured by Shin Nippon Kagaku Co.) were retained. Wear the paper diaper thus prepared, urinate,
It was examined by panel test whether scent of menthol was released with defecation. In addition, with a paper diaper holding a fragrance precursor substance and an enzyme and a paper diaper not holding it,
A panel test was conducted to examine whether there was an unpleasant odor associated with urination or defecation. The results are shown in Table 11. The evaluation criteria are the same as in Example 1.

[0053]

[Table 11]

As shown in Table 11, by using the disposable diaper of the present invention, unpleasant odor caused by urination and defecation can be suppressed, and the time of urination and defecation can be confirmed by the release of aroma. From this result, it can be understood that the wearer's urination and discomfort after defecation can be minimized by using the incontinence pad of the present invention.

Example 12 Commercially available sanitary napkin (trade name, manufactured by Unicharm Co., Ltd.
In the water absorption layer of Sophie Sara), 0.2 g of menthol β-galactoside synthesized in Reference Example 4 and 0.2 g of β-galactosidase (Sumilacto GLL, manufactured by Shin Nippon Kagaku Co., Ltd.) were held. The sanitary napkin produced in this manner was attached, and it was examined by a panel test whether the scent of menthol was released with bleeding. In addition, it was examined by a panel test whether or not the sanitary napkin holding the fragrance precursor substance and the enzyme and the sanitary napkin not holding the odor have an unpleasant odor with bleeding. Table 12 shows the results. The evaluation criteria are the same as in Example 1.

[0056]

[Table 12]

As shown in Table 12, by using the sanitary napkin of the present invention, an unpleasant odor was able to be suppressed because the aroma was released with bleeding.

[0058]

The absorbent article of the present invention can suppress unpleasant odor caused by urination, defecation, excretion, etc., and can confirm the time of urination, defecation, excretion, etc. by releasing aroma. Therefore, by using the absorbent article of the present invention, discomfort of the wearer can be minimized, and discomfort during replacement can also be minimized.

Claims (1)

[Claims] 1. A perfume precursor substance which is decomposed by the action of an enzyme into a perfume in an absorbent article comprising a liquid-permeable surface sheet, a liquid-impermeable leak-proof sheet and an absorbent layer provided between both sheets. And an absorbent article comprising an enzyme that decomposes a fragrance precursor substance.