JP2018143566A - Absorbent article, and deodorant method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article having good fitness and excellent in deodorant effect of odor generated from body fluid.SOLUTION: An absorbent article 1 comprises: a liquid-permeable surface sheet 2; a liquid-impermeable or hardly permeable rear sheet 3; and a liquid-holding absorber 4 interposed between both sheets 2, 3. The absorbent article 1 has a main absorption part 10, and an auxiliary absorption part 20 extending from an edge 11 of the main absorption part 10 to one direction X. In the main absorption part 10, a width in a direction Y orthogonal to the one direction X is larger than a width of the auxiliary absorption part 20. A chemical deodorant and a physical deodorant are included in any portion of the absorbent article 1.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an absorbent article. Moreover, this invention relates to the deodorizing method using this absorbent article.

  Various techniques for deodorizing body fluids secreted or excreted from the human body have been proposed. For example, disposable diapers and sanitary napkins are widely used as absorbent articles used to absorb and retain urine and menstrual blood.

On the other hand, body fluids other than urine and menstrual blood include body fluids caused by cancer, skin diseases and the like. These body fluids generally have a disease odor. As a countermeasure against these disease odors, for example, Patent Document 1 proposes a medical disease odor control sheet having a deodorant-impregnated nonwoven fabric containing a deodorant component made from a plant extract containing polyphenol. This sheet is used to suppress odors caused by cell necrosis such as breast cancer, colon cancer and uterine cancer and anticancer drug treatment, and odors such as pus caused by skin diseases. As an article used for the same purpose, Patent Document 2 proposes a medical disease odor absorbing sheet containing a hydrophobic zeolite as a deodorant.
Further, Patent Document 3 proposes a bust pad for the purpose of improving the quality of life (QOL) of a woman who has had a breast removed by breast cancer surgery, and the bust pad is sweaty when sweating. It also discloses removing odors.

JP 2014-113289 A Japanese Patent Laid-Open No. 2006-120027 JP 2009-254813 A

  The above-described medical sheet and bust pad applied to the human body must be fit to the body in order to absorb body fluids secreted or excreted from the human body and odors generated from these body fluids. Furthermore, since the odor is a complex odor of a wide variety of chemical substances, a deodorizing effect suitable for each chemical substance is required. However, since there is a lot of fluid secretion from post-operative and damaged skin, and the skin in such a state is sensitive, the techniques described in each of the above-mentioned literatures provide fit, absorbability, From the viewpoint of the balance of the deodorizing effect, it cannot be said that the level has been sufficiently satisfied.

  Accordingly, an object of the present invention is to improve an absorbent article used for absorbing and retaining body fluids, and more specifically, to provide an absorbent article having good fit and excellent deodorizing effect for odors generated from body fluids. There is to do.

The present invention is an absorbent article having a liquid-permeable top sheet, a liquid-impermeable or liquid-permeable back sheet, and a liquid-retaining absorbent disposed between both sheets,
The absorbent article has a main absorbent part and an auxiliary absorbent part extending in one direction from one end of the main absorbent part,
The main absorbent portion has a width in a direction orthogonal to the one direction larger than the width of the auxiliary absorbent portion,
Provided is an absorbent article in which a chemical deodorant and a physical deodorant are contained in any part of the absorbent article.

  The present invention also provides a deodorizing method in which the absorbent article is applied to the exudate secretion site on the surface of the body to deodorize the exudate odor generated at the secretion site.

  ADVANTAGE OF THE INVENTION According to this invention, the absorptive article excellent in fit property and excellent in the deodorizing effect of the odor which generate | occur | produces from a bodily fluid is provided.

FIG. 1 is a partially broken plan view showing an embodiment of an absorbent article of the present invention. 2A is a cross-sectional view taken along the line aa in FIG. 1, and FIG. 2B is a cross-sectional view taken along the line bb in FIG. FIG. 3 is an explanatory view of the state in which the absorbent article shown in FIG. FIG. 4 is an explanatory view of a state in which the absorbent article shown in FIG. Fig.5 (a) is one Embodiment of an odor collecting tool, FIG.5 (b) is explanatory drawing which looked at the state which made the wearer wear the collecting tool of Fig.5 (a) from the front. is there. FIG. 6 (a) is another embodiment of the smell collecting tool, and FIG. 6 (b) is an explanation of the state in which the wearing tool of FIG. 6 (a) is attached to the wearer as seen from the left side. FIG. FIG. 7 (a) is still another embodiment of the smell collecting tool, and FIG. 7 (b) is a front view showing a state in which the wearing tool of FIG. 7 (a) is attached to the wearer. FIG. FIG. 8 is a bar graph showing the relative value of the detected value of dimethyl trisulfide, which is the odor-causing substance, in Example 1 and Comparative Example 1.

  The present invention will be described below based on preferred embodiments with reference to the drawings. The partially broken top view which shows one Embodiment of the absorbent article of this invention is shown by FIG. The absorbent article 1 shown in the figure has a liquid-permeable top sheet 2 and a liquid-impermeable or liquid-permeable back sheet 3 arranged at a position facing the liquid-permeable top sheet 2. The top sheet 2 and the back sheet 3 have the same shape. A liquid retaining absorber 4 is disposed between the sheets 2 and 3. The top sheet 2 and the back sheet 3 extend outward from the peripheral edge of the absorbent body 4, and the extended portions of both are joined to form the peripheral joint portion 5. The peripheral joint portion 5 is formed so as to continuously surround the peripheral edge of the absorber 4.

  As shown in FIG. 2A and FIG. 2B which are cross-sectional views of FIG. 1, the absorbent body 4 has an absorbent core 4a. Moreover, the absorber 4 has the liquid-permeable coating sheet 4b which coat | covers the opposing surface with the surface sheet 2 in an absorptive core. The covering sheet 4b also covers the surface of the absorbent core 4a facing the back sheet 3, and further covers the side surfaces of the absorbent core 4a. The covering sheet 4b covers the entire area of the surface facing the top sheet 2 in the absorbent core. Similarly, the covering sheet 4b covers the entire area of the surface facing the back sheet 3 in the absorbent core. Thus, the absorber 4 is comprised including the absorptive core 4a and the coating sheet 4b.

  As the surface sheet 2 used for the absorbent article 1, a liquid-permeable fiber sheet or a perforated film is used. For example, a nonwoven fabric is preferably used as the fiber sheet, but is not limited thereto. When a nonwoven fabric is used as the fiber sheet, examples of the nonwoven fabric include an air-through nonwoven fabric, a spunbond nonwoven fabric, a spunlace nonwoven fabric, a meltblown nonwoven fabric, a resin bond nonwoven fabric, and a needle punched nonwoven fabric. Moreover, the laminated body which laminated | stacked 2 or more types of these nonwoven fabrics can also be used. In order to increase the liquid permeability of the nonwoven fabric, the nonwoven fabric may be subjected to a hydrophilic treatment. As the hydrophilization treatment, for example, various surfactants known as fiber oil agents can be used.

  As the back sheet 3 used for the absorbent article 1, a film made of a thermoplastic resin or a film in which a fiber sheet such as a nonwoven fabric is bonded to the film can be used. This film may be liquid impermeable and water vapor permeable. Moreover, the nonwoven fabric of the multilayer structure formed by laminating | stacking a multiple types of nonwoven fabric can also be used as the liquid-permeable back surface sheet 3. Examples of the multilayer nonwoven fabric include a spunbond / meltblown / spunbond (SMS) nonwoven fabric and a spunbond / meltblown (SM) nonwoven fabric.

  Examples of the absorbent core 4a in the absorbent body 4 used in the absorbent article 1 include a laminated body of a water absorbent fiber material, a laminated body including a water absorbent fiber material and a water absorbent polymer, and the like. Alternatively, as the absorbent core, a layer made of only a water-absorbing polymer or a water-absorbing sheet in a form in which the water-absorbing polymer is fixed to a fiber sheet can be used. What type of absorbent core 4 a is used may be appropriately selected according to the specific application of the absorbent article 1.

  Various hydrogel materials can be used as the water-absorbing polymer. For example, cross-linked products of polymers or copolymers of acrylic acid or alkali metal acrylates, cross-linked products of polyacrylic acid and its salts and polyacrylate graft polymers, cross-linked products of starch or carboxymethylated cellulose, starch Cross-linked product of hydrolysis product of acrylate graft copolymer, cross-linked product of vinyl alcohol-acrylate copolymer, cross-linked product of maleic anhydride grafted polyvinyl alcohol, cross-linked isobutylene-maleic anhydride copolymer, acetic acid A saponified product of a vinyl-acrylic acid ester copolymer can be used.

  A liquid-permeable sheet is used as the covering sheet 4b that covers the absorbent core 4a. Examples of such a sheet include non-woven fabric and tissue paper (thin paper). In Fig.2 (a) and FIG.2 (b), since the state which has coat | covered the absorptive core 4a using one sheet | seat 4b is shown, it is with the surface sheet 2 in the absorptive core 4a. Both the facing surface and the facing surface with the back sheet 3 are covered with the same type of covering sheet 4b. However, the present invention is not limited to this, and a plurality of types of covering sheets 4b are used to cover the facing surface with the top sheet 2. The type of the covering sheet 4b that covers the opposite surface of the back sheet 3 may be different.

  As shown in FIG. 1, the absorbent article 1 of this embodiment is roughly composed of two parts. Specifically, the absorbent article 1 is composed of two parts, a main absorbent part 10 and an auxiliary absorbent part 20. The main absorbent portion 10 is a portion that is disposed so as to face a secretion portion of a bodily fluid secreted from a wearer when the absorbent article 1 is worn. The auxiliary absorption part 20 is a part disposed at a position away from the secretion part of the body fluid secreted from the wearer in the wearing state of the absorbent article 1 and the body fluid that cannot be absorbed by the main absorption part 10. It is a site that absorbs supplementary.

  The absorbent article 1 has a longitudinal direction X and a width direction Y orthogonal thereto. The main absorbent part 10 and the auxiliary absorbent part 20 are arranged in series along the longitudinal direction X. Specifically, the auxiliary absorbent portion 20 extends in one direction, that is, in the longitudinal direction X, from the edge 11 that is one end of the main absorbent portion 10. The main absorbent part 10 and the auxiliary absorbent part 20 are directly adjacent to each other, and no other part exists between them. Moreover, although the absorbent article 1 of embodiment shown in FIG. 1 does not have any site | part ahead of the side edge 13X of the main absorption part 10 regarding the longitudinal direction X, the absorbent article 1 is used. 3 and 4, for example, by attaching an adhesive tape (not shown) outward from the side edge 13 </ b> X of the main absorbent portion 10, the absorbent article 1 is attached to the body. It may be fixed. Similarly, the absorbent article 1 of the embodiment shown in FIG. 1 does not have any part in the position ahead of the side edge 23X of the auxiliary absorbent portion 20 with respect to the longitudinal direction X. 3 and FIG. 4, when the 1 is mounted, for example, an adhesive tape (not shown) is extended outward from the side edge 23X of the auxiliary absorbent portion 20 to dispose the absorbent article 1. It may be fixed to the body. Further, when viewed along the longitudinal direction X, the absorbent article 1 has a substantially symmetrical shape.

As shown in FIG. 1, the main absorbent portion 10 has a substantially rectangular shape with a corner in plan view. The main absorbent portion 10, than the length _{X 10} along the longitudinal direction X, side edges 13Y of the main absorbent portion 10, the direction of length _{Y 10} along the width direction Y between 13Y is longer. The longitudinal direction X along the length X _10, is that the distance between the side edges 13X of the starting position and the main absorbent portion 10 of the stepped portion 12 forming a part of the main absorption part 10. The dimensions of the main absorbent portion 10 may be appropriately set according to the specific application of the absorbent article 1. For example, when the mounting form as shown in FIG. 3 and FIG. length _{X 10} along the direction X is preferably at 15cm or more, further preferably 18cm or more, and more preferably more than 20cm. Further, it is preferably 40 cm or less, more preferably 35 cm or less, and further preferably 30 cm or less. Specifically, the longitudinal direction X along the length _{X 10} is preferably 15cm or 40cm or less, still more preferably 18cm or 35cm or less, and still more preferably more than 20cm 30cm or less. On the other hand, the length _{Y 10} along the width direction Y is preferably 20cm or more, further preferably 22cm or more, and more preferably at least 25 cm. Further, it is preferably 40 cm or less, more preferably 35 cm or less, and still more preferably 33 cm or less. Specifically, the length _{Y 10} along the width direction Y, preferably at more than 20cm 40cm or less, and more preferably still more preferably 22cm or 35cm or less, 25cm or 33cm or less.

The auxiliary absorbent portion 20 extends along the longitudinal direction X from a substantially central region along the width direction at the edge 11 of the main absorbent portion 10. The auxiliary absorber 20 has a substantially rectangular shape in plan view. Unlike the main absorbent portion 10 described above, the auxiliary absorber 20, the side edge 23Y of the auxiliary absorbent portion 20, than the length _{Y 20} along the width direction Y between 23Y, the stepped portion 12 and the auxiliary absorbent portion 20 towards the longitudinal along the X length X ₂₀ between the side edges 23X is longer. The dimensions of the auxiliary absorbent portion 20 may be appropriately set according to the specific application of the absorbent article 1. For example, when the mounting form as shown in FIG. 3 and FIG. length _{X 20} along the direction X is preferably 10cm or more, more preferably 15cm or more, and more preferably more than 20cm. Further, it is preferably 35 cm or less, more preferably 30 cm or less, and further preferably 25 cm or less. Specifically, the longitudinal direction X along the length _{X 20} is preferably more than 10cm 35cm or less, still more preferably 15cm or 30cm or less, and still more preferably more than 20cm 25cm or less. On the other hand, the length _{Y 20} along the width direction Y is preferably 5cm or more, more preferably 10cm or more, and more preferably 15cm or more. Further, it is preferably 25 cm or less, more preferably 23 cm or less, and still more preferably 20 cm or less. Specifically, the length Y ₂₀ along the width direction Y is preferably 5 cm or more and 25 cm or less, more preferably 10 cm or more and 23 cm or less, and further preferably 15 cm or more and 20 cm or less.

When comparing the width in the direction perpendicular to the longitudinal direction X, that is, the length along the width direction Y, between the main absorbent portion 10 and the auxiliary absorbent portion 20, the width Y10 of the main absorbent portion ₁₀ is It is larger than the width _{Y 20.} Therefore, a portion where the main absorbent portion 10 and the auxiliary absorbent portion 20 are connected to each other has a stepped portion 12 whose width changes from the wide main absorbent portion 10 to the narrow auxiliary absorbent portion. As shown in FIG. 1, a pair of stepped portions 12 are formed.

  The distance G between the side edge 13Y in the main absorbent portion 10 and the side edge 23Y in the auxiliary absorbent portion 20 may be appropriately set according to the specific application of the absorbent article 1, but will be described later, for example. 3 and FIG. 4, when the mounting form is adopted, it is preferably 2 cm or more, more preferably 3 cm or more, and further preferably 4 cm or more. Further, it is preferably 12 cm or less, more preferably 10 cm or less, and further preferably 8 cm or less. Specifically, the distance G is preferably 2 cm or more and 12 cm or less, more preferably 3 cm or more and 10 cm or less, and further preferably 4 cm or more and 8 cm or less.

  In addition, regarding the stepped portion 12, among the edges of the main absorbent portion 10, the angle formed by the edge 11 on the auxiliary absorbent portion 20 side and the side edge 23 </ b> Y of the auxiliary absorbent portion 20 is specific to the absorbent article 1. What is necessary is just to set suitably according to a use, but when employ | adopting the mounting form as shown in FIG.3 and FIG.4 mentioned later, for example, it is preferable that it is 90 degree | times or more, and it is 95 degree | times or more further Preferably, it is 100 degrees or more. Further, it is preferably 160 degrees or less, more preferably 150 degrees or less, and further preferably 120 degrees or less. Specifically, the angle formed by the end edge 11 and the side edge 23Y is preferably 90 degrees or more and 160 degrees or less, more preferably 95 degrees or more and 150 degrees or less, and 100 degrees or more and 120 degrees or less. More preferably it is.

  The main absorbent part 10 and the auxiliary absorbent part 20 are connected by a single top sheet 2 and back sheet 3. Similarly, they are connected by a single absorber 4. That is, the main absorption part 10 and the auxiliary absorption part 20 are integrally formed. However, depending on the specific application of the absorbent article 1, the main absorbent part 10 and the auxiliary absorbent part 20 may be configured separately.

  The absorbent article 1 having the above configuration is worn such that the top sheet 2 faces the wearer's body. In this case, the surface sheet 2 may be mounted so as to directly face the body of the wearer, or may be mounted so as to face the body indirectly. “Directly facing” means that both members face each other in a state where no member is interposed between the body of the wearer and the top sheet 2. “Indirectly facing” means that both face each other in a state where some member such as a liquid-absorbing or liquid-permeable member is interposed between the body of the wearer and the top sheet 2. . Examples of the liquid-absorbing or liquid-permeable member include fabrics made of cellulosic fibers such as gauze. As an application site | part of the absorbent article 1 in a wearer's body, the site | part from which a bodily fluid (exudate) comes out to a body surface from a wound part or an affected part is mentioned. Examples include self-destroying wounds on the skin due to cancer, lacerations, burns, and the like, and sites being treated. “Exudate” is a liquid that exudes from the surface of a human body. Therefore, bodily fluids excreted from normally functioning excretory organs such as urine and menstrual blood are not included in the exudate. Other application sites of the absorbent article 1 include the vicinity of a site where an artificial anus or an artificial bladder is attached. Of these application sites, it is advantageous to apply the absorbent article 1 particularly to the exudate secretion site on the body surface. Examples of exudate secretion sites on the body surface include, but are not limited to, the chest, neck, lower abdomen, upper limbs, and lower limbs. For example, exudate derived from cancer is secreted from advanced cancer that has infiltrated into skin such as breast cancer, skin cancer, and neck cancer, and the absorbent article of the present embodiment absorbs such secreted liquid. 1 is preferably used.

  3 and 4 show a state in which the absorbent article 1 is mounted on the breast as an example of the usage form of the absorbent article 1 of the present embodiment. As shown in these drawings, the absorbent article 1 is arranged on the body surface so that the longitudinal direction thereof is substantially orthogonal to the midline. And the absorbent article 1 is arrange | positioned so that the main absorption part 10 in the absorbent article 1 may cover a breast, the auxiliary absorption part 20 may pass through an axilla, and the front-end | tip may reach a back side. In particular, as shown in FIG. 4, by fitting the absorbent article 1 so that the stepped portion 12 in the absorbent article 1 is located between the breast and the axilla, the fit becomes good, and the breast or the axilla The exudate secreted from can be absorbed successfully.

  In particular, the auxiliary absorbent portion 20 not only assists the absorbent capacity of the main absorbent portion 10 but also increases the contact area between the absorbent article 1 and the wearer's body, thereby extending the absorbent article 1 to the wearer's body. It also contributes to stable wearing over time. Further, when the exudate secreted from the skin of the breast of the wearer of the absorbent article 1 that is in the lying position flows down along the body surface, the auxiliary absorbent unit 20 absorbs the exudate and returns to the back side. It also helps to prevent it from reaching.

  Moreover, since the absorbent article 1 is substantially symmetrical when viewed along the longitudinal direction X and has a pair of stepped portions 12, the absorbent article 1 has the right breast and the left There is an advantage that it can be similarly mounted on any of the breasts.

  When the absorbent article 1 is mounted in the usage pattern shown in FIGS. 3 and 4, the absorbent article 1 can be fixed to the body with, for example, an adhesive tape (not shown). Alternatively, the absorbent article 1 may be fixed by wearing a chest band (not shown) so as to cover the absorbent article 1.

  As described above, the absorbent article 1 of the present embodiment has the main absorbent portion 10 and the auxiliary absorbent portion 20, and the stepped portion 12 between them, resulting in the exudate in the chest. It is suitable for application to the secretion site. Furthermore, various body fluids secreted from the human body may have a peculiar odor per se, and may cause odor due to the action of skin resident bacteria. Therefore, it is preferable that the absorbent article 1 contains a deodorant from the viewpoint of suppressing not only the body fluid absorption and retention but also the odor generated from the body fluid. In particular, it is advantageous for deodorizing various odorous substances derived from body fluid (exudate) to contain any combination of a chemical deodorant and a physical deodorant in any part of the absorbent article 1. It became clear as a result of examination of this inventor.

  When the covering sheet 4b positioned between the top sheet 2 and the absorbent core 4a is selected as the site containing the chemical deodorant and the physical deodorant, the covering sheet 4b is absorbed by the absorbent core 4a. Since the odor generated from the retained body fluid is blocked from being volatilized to the outside, the deodorizing effect is further enhanced, which is advantageous. In order to include a chemical deodorant and a physical deodorant in the covering sheet 4b, for example, a method of externally adding the chemical deodorant and the physical deodorant to the covering sheet 4b by a method such as spraying or spraying. Can be adopted. Alternatively, when the cover sheet 4b is thin paper, a chemical deodorant and a physical deodorant may be internally added to the papermaking slurry during papermaking.

  As shown in FIGS. 2 (a) and 2 (b), when the covering sheet 4b covers the upper and lower surfaces and the side surfaces of the absorbent core 4a, a chemical deodorant and By including a physical deodorant, the deodorizing effect can be made more remarkable.

  A chemical deodorant is intended to deodorize odorous substances by a chemical reaction. Examples of chemical reactions include, but are not limited to, neutralization reactions. For example, a weak acid, its conjugate base, or a mixture thereof, a weak base, its conjugate acid, or a mixture thereof can be used. Specifically, citric acid etc. are mentioned as a weak acid. Examples of the salt include alkali metal salts such as Na, K, and Ca. Examples of the weak base include polyhydroxyamine. Chemical deodorants do not necessarily need to neutralize all acid and alkaline odors simultaneously. For example, if citric acid as a weak acid is used alone, it is possible to neutralize and deodorize alkaline odors such as amine and ammonia which are one of odorous substances. Further, neutralization produces a salt of citric acid, and a secondary buffering action occurs. Moreover, even if it is only a sodium citrate simple substance, and it is a mixture of a citric acid and its salt, a buffer effect will arise. By using a chemical deodorant, an acidic or alkaline odor substance, for example, an acidic odor substance such as acetic acid or an alkaline odor substance such as trimethylamine can be neutralized and deodorized.

  As another example of the chemical deodorant, at least one acid dissociation index pKa (25 ° C.) of at least one selected from the group consisting of an organic acid having 5.0 or higher and a salt thereof (hereinafter referred to as “agent A”) It is also preferable to include. The organic acid salt is a metal salt such as Na, K, or Ca. By containing this agent A, neutralization and deodorization of acidic odorous substances such as fatty acids and alkaline odorous substances such as amines can be successfully performed.

  The acid dissociation index is, for example, (a) the method described in The Journal of Physical Chemistry vol. 68, number 6, page 1560 (1964), (b) an automatic potentiometric titrator manufactured by Hiranuma Sangyo Co., Ltd. (COM-980Win (product) (C) Acid dissociation described in Chemical Handbook edited by The Chemical Society of Japan (3rd revised edition, published on Mar. 25, 1984, published by Maruzen Co., Ltd.) An index, a database such as (d) pKaBASE (trade name) manufactured by CompuDrug, etc. can be used.

  As an organic acid having at least one acid dissociation index pKa (25 ° C.) of 5.0 or more, for example, as an organic dibasic acid, maleic acid (second-stage pKa value: 5.83. Numerical values in parentheses below are The second-stage pKa value is represented.), Malonic acid (5.28), 2-methylmalonic acid (5.76), 2-ethylmalonic acid (5.81), 2-isopropylmalonic acid (5.88) 2,2-dimethylmalonic acid (5.73), 2-ethyl-2-methylmalonic acid (6.55), 2,2-diethylmalonic acid (7.42), 2,2-diisopropylmalonic acid ( 8.85), m-hydroxybenzoic acid (9.96), p-hydroxybenzoic acid (9.46), 1,2-cyclohexanedicarboxylic acid (trans isomer: 6.06, cis isomer: 6.74), 1,2-cyclopentanedicarboxylic acid (trans isomer: 5.9) Cis isomer: 6.57), 1,2-cyclooctanedicarboxylic acid (trans isomer: 6.24, cis isomer: 7.34), 1,2-cycloheptanedicarboxylic acid (trans isomer: 6.18, cis isomer) : 7.6), succinic acid (5.24), phenylsuccinic acid (5.55), 2,3-dimethylsuccinic acid (6.0), 2,3-diethylsuccinic acid (6.46), 2 -Ethyl-3-methylsuccinic acid (6.1), tetramethylsuccinic acid (7.41), 2,3-di-t-butylsuccinic acid (10.26), 3,3-dimethylglutaric acid (6.45 ), 3,3-diethylglutaric acid (7.42), 3-isopropyl-3-methylglutaric acid (6.92), 3-t-butyl-3-methylglutaric acid (7.49), 3,3 -Diisopropylglutaric acid (7.68), 3-methyl-3 Ethyl glutaric acid (6.70), 3,3-dipropyl glutaric acid (7.48), 2-ethyl-2- (1-ethylpropyl) glutaric acid (7.31), cyclohexyl-1,1-di Acetic acid (7.08), 2-methylcyclohexyl-1,1-diacetic acid (6.89), cyclopentyl-1,1-diacetic acid (6.77), 3-methyl-3-phenylglutaric acid (6. 17), 3-ethyl-3-phenylglutaric acid (6.95) and the like.

  Examples of the organic polybasic acid include citric acid (third-stage pKa value: 5.69). Among these, phosphoric acid, citric acid, succinic acid having an acid dissociation index (pKa) of at least 5.2 in at least one dissociation stage from the viewpoint of storage stability such as easy acquisition and increase in internal pressure due to gas generation. It is preferable to include at least one selected from the group consisting of acid, maleic acid, malonic acid and the like, and citric acid is particularly preferable.

  The chemical deodorant preferably contains at least one selected from the group consisting of a polyhydroxyamine compound and a salt thereof (hereinafter also referred to as “B agent”). The polyhydroxyamine compound of agent B is a compound represented by the following formula (1)

In Formula (1), R ⁵ represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a hydroxyalkyl group having 1 to 5 carbon atoms. The alkyl group having 1 to 5 carbon atoms may be linear or branched, and examples thereof include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, various butyl groups, and various pentyl groups. Examples of the hydroxyalkyl group having 1 to 5 carbon atoms include hydroxymethyl group, 2-hydroxyethyl group, 2-hydroxypropyl group, 3-hydroxypropyl group, 2-hydroxybutyl group, 3-hydroxybutyl group, 4- Examples thereof include a hydroxybutyl group. R ⁵ is preferably a hydrogen atom, a methyl group, an ethyl group, a hydroxymethyl group, or a 2-hydroxyethyl group from the viewpoint of deodorizing performance and availability, and particularly a hydrogen atom, a hydroxymethyl group, or 2-hydroxy. An ethyl group is preferred.

R ⁶ represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a hydroxyalkyl group having 1 to 5 carbon atoms. The alkyl group having 1 to 6 carbon atoms may be linear, branched or cyclic. Specific examples of the alkyl group include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, various butyl groups, various pentyl groups, various hexyl groups, cyclopentyl groups, and cyclohexyl groups. Moreover, the said thing is mentioned as a C1-C5 hydroxyalkyl group. From the viewpoints of deodorizing performance and availability, R ⁶ is preferably a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, or a hydroxyethyl group, and particularly preferably a hydrogen atom.

R ⁷ and R ⁸ represent an alkanediyl group having 1 to 5 carbon atoms. R ⁷ and R ⁸ may be the same or different. As the alkanediyl group having 1 to 5 carbon atoms, a methylene group, an ethylene group, a trimethylene group, a propane-1,2-diyl group, a tetramethylene group, and the like are preferable, and a methylene group is particularly preferable.

  Specific examples of the B agent polyhydroxyamine compound include, for example, 2-amino-1,3-propanediol, 2-amino-2-methyl-1,3-propanediol, and 2-amino-2-ethyl-1. , 3-propanediol, 2-amino-2-hydroxymethyl-1,3-propanediol, 2-amino-2-hydroxyethyl-1,3-propanediol, 4-amino-4-hydroxypropyl-1,7 -Heptanediol, 2- (N-ethyl) amino-1,3-propanediol, 2- (N-ethyl) amino-2-hydroxymethyl-1,3-propanediol, 2- (N-decyl) amino- Examples include 1,3-propanediol and 2- (N-decyl) amino-2-hydroxymethyl-1,3-propanediol. Among these, from the viewpoint of deodorizing performance and the like, 2-amino-1,3-propanediol, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-ethyl-1,3 One or more selected from -propanediol, 2-amino-2-hydroxymethyl-1,3-propanediol, and 2-amino-2-hydroxyethyl-1,3-propanediol are particularly preferable. In particular, 2-amino-2-hydroxymethyl-1,3-propanediol, that is, tris (hydroxymethyl) aminomethane has an excellent neutralizing action on acidic odor substances and has low volatility. It is preferable because of its low odor.

  The said polyhydroxyamine compound can be used individually or in mixture of 2 or more types. The polyhydroxyamine compound can be produced by a usual method.

  As a chemical deodorant, when both A agent and B agent mentioned above are included, it is more preferable at the point which can neutralize a broad odor substance. In particular, it is preferable that citric acid is contained as the organic acid of the agent A, and tris (hydroxymethyl) aminomethane is contained as the polyhydroxyamine compound of the agent B. The ratio of the mass of the A agent and the B agent is preferably A agent / B agent = 5/95 to 95/5, more preferably 20/80 to 55 from the viewpoint of neutralizing action of pH and the deodorizing performance. / 45 is preferred.

Furthermore, a compound containing a nitrogen atom in the molecule can also be used as one that exhibits a neutralizing action on an acidic odor substance. Typical structures containing a nitrogen atom include amides, imides, amine oxides and the like in addition to the polyhydroxyamine. Preferred compounds containing a nitrogen atom include amine oxide surfactants, betaine surfactants, fatty acid alkanolamide surfactants, quaternary ammonium salt surfactants, alkanolamines, urea, anthranilic acid esters. , Polymer compounds composed of amino acids or amino sugars, and polyalkylene polyamines.
The content of the absorbent article 1 m ² per chemical deodorant, 0.01 g / ^{m 2} or more preferably, 0.05 g / ^{m 2} or more, and the upper limit thereof, is 2.0 g / ^{m 2} or less Preferably, 1.0 g / m ² or less is more preferable. In particular, the chemical deodorant is preferably contained in the covering sheet 4b from the viewpoint of developing an excellent neutralizing action on acidic odorous substances.

  The above description relates to a chemical deodorant. The physical deodorant used in combination with the chemical deodorant is intended to deodorize odorous substances by a physical phenomenon. Examples of physical phenomena include, but are not limited to, adsorption. As a physical deodorant, for example, porous particles having adsorption ability are preferable. By using a physical deodorant, odor substances other than acidic and alkaline can be effectively deodorized. Examples of such a substance include sulfur-containing compounds such as dimethyl trisulfide.

  As said porous particle, what can adsorb | suck or include the volatile substance which volatilizes to the hole can be used without a restriction | limiting in particular. For example, acrylic polymer such as porous methacrylic acid polymer and porous acrylic acid polymer, aromatic polymer such as porous divinylbenzene polymer and porous pyridine copolymer, and synthetic porous polymer such as copolymer thereof; chitin And natural porous polymers such as chitosan; zinc oxide, activated carbon, silica, silicon dioxide (silica gel), calcium silicate, aluminosilicate compounds, high silica zeolite (hydrophobic zeolite), sepiolite, cancrinite, zeolite, and water Inorganic porous materials such as zirconium oxide; silver-supported zeolite, silver-supported cancrinite, and vinyl-pyridine copolymers such as silver-supported porous styrene-divinylbenzene-vinylpyridine polymer and silver-supported porous divinylbenzene-vinylpyridine polymer; Such as metal Is like lifting porous, preferably contains at least one selected from the group consisting future. In particular, it is preferable from the viewpoint of deodorizing performance to contain at least one selected from the group consisting of activated carbon, an aluminosilicate compound and a vinylpyridine copolymer. These porous particles may be used individually by 1 type, and may be used in combination of 2 or more type. Examples of the porous vinylpyridine copolymer include porous styrene-divinylbenzene-vinylpyridine polymer and porous divinylbenzene-vinylpyridine polymer. The silver-supported cancrinite is a cancrinite-like mineral described in paragraphs [0029] to [0045] of JP-A-2005-336363.

From the viewpoint of more efficiently expressing the above action, the porous particles preferably have a BET specific surface area of 50 m ² / g or more, more preferably 100 m ² / g or more, and 200 m ² / g or more. More preferably. The upper limit is not particularly limited, but it is practical to set the upper limit to 2000 m ² / g or less. In addition, the porous particles preferably have an average pore diameter of 2 nm or more, preferably 50 nm or less, and more preferably 30 nm or less. For example, the BET specific surface areas of the activated carbon, the aluminosilicate compound, and the vinylpyridine copolymer described above are about 1750 m ² / g, about 250 m ² / g, about 350 m ² / g, and the average pore diameter is about 4.5 nm, respectively. About 20 nm or about 10 nm can be used. Thus, the larger the value of the BET specific surface area, the higher the odor substance adsorption performance. In addition, there are various odor substances in body fluids to be deodorized, such as ammonia, amines, fatty acids, hydrogen sulfide and mercaptans. Most of them have a molecular size exceeding 1 nm. When it is 2 nm or more, various odorous substances can be adsorbed. Therefore, it is preferable to use the porous particles having the BET specific surface area or the average pore diameter because the content of the porous particles can be further reduced while keeping the deodorizing performance high. Furthermore, it is preferable to use porous particles having both the BET specific surface area and the average pore diameter because the above action is further enhanced. The BET specific surface area is measured by a multi-point method using liquid nitrogen using a specific surface area / pore distribution measuring device “ASAP2020” manufactured by Shimadzu Corporation, and the value is within a range where the parameter C is positive. Can be derived. Mercury intrusion can be used to measure the pore distribution.

  The porous particles are fine particles having a large number of pores. Examples of the material include inorganic materials, organic materials, and polymer materials, and are not particularly limited. Moreover, the pore diameter should just have a pore diameter of 0.1 nm or more. The shape of the fine particles may be any of a spherical shape, a rod shape having an aspect ratio, a needle shape, and an indefinite shape such as a pulverized shape. The pore diameter can be measured using a specific surface area / pore distribution measuring device “ASAP2020” manufactured by Shimadzu Corporation. The shape of the fine particles is observed with a scanning electron microscope “JCM-5100” manufactured by JEOL Ltd.

The above-mentioned activated carbon, aluminosilicate compound and vinylpyridine copolymer can each be added with a further deodorizing function by surface treatment. For example, activated carbon can have a deodorizing function by chemisorption to sulfur-based gas by activation of zinc chloride (ZnCl). Further, the aluminosilicate compound can have an antibacterial action by supporting zinc, and the vinylpyridine copolymer by supporting silver. The content of the absorbent article 1 m ² per physical deodorants, 0.05 g / ^{m 2} or more preferably, 0.1 g / ^{m 2} or more, and also the upper limit, 5 g / ^{m 2} or less is preferable 3 g / m ² or less is more preferable. In particular, from the viewpoint of enhancing the adsorption performance of odorous substances, it is preferable to contain a physical deodorant in the covering sheet 4b.

  It is preferable that the absorbent article 1 of this embodiment contains an antibacterial agent in addition to the chemical deodorant and the physical deodorant described above. By adopting a combination of an antibacterial agent, a chemical deodorant and a physical deodorant, a wide deodorant spectrum is exhibited, and production of various odor-causing substances derived from body fluids can be suppressed and deodorized. Thereby, the absorbent article 1 can suppress a rot odor strongly by the effect | action of a continuous and effective antibacterial and deodorizing.

As the antibacterial agent, an inorganic antibacterial agent or an organic antibacterial agent can be used. Examples of inorganic antibacterial agents include silver, zinc, copper, mercury, magnesium, arsenic, calcium, aluminum, antimony, bismuth antibacterial metal ions or salts, zeolite zeolite, silica gel, low molecular glass, calcium phosphate as a carrier. , Fine particle powder or needle-like crystal supported on zirconium phosphate, silicate or titanium oxide.
Examples of organic antibacterial agents include piroctone olamine [1-hydroxy-4-methyl-6- (2,4,4-trimethylpentyl) -2 ( ¹ H) -pyridone monoethanolamine salt] (octopi Anionic antibacterials such as Rox: registered trademark), potassium oleate, sodium 1-pentasulfonate, sodium 1-decanesulfonate, sodium butylnaphthalenesulfonate, sodium dodecyl sulfate, sodium dodecylbenzenesulfonate, sodium hexadecyl sulfate Agents, cationic antibacterial agents such as benzalkonium cetyl phosphate, benzethonium chloride, benzalkonium chloride, cetylpyridinium chloride, chlorhexidine hydrochloride, chlorhexidine gluconate, triclocarban, triclosan, halocarban or paraoxybenzoic acid ester And the like. These antibacterial agents may be used alone or in combination of two or more.

  In particular, from the viewpoint of achieving both antibacterial effect and absorption performance, antibacterial agents include quaternary ammonium salt type interfaces such as piroctone olamine, benzalkonium cetyl phosphate, benzethonium chloride, benzalkonium chloride, and cetylpyridinium chloride. It is preferable to use an activator, and among these, it is more preferable to use piroctone olamine and benzalkonium cetyl phosphate. Benzalkonium cetyl phosphate is an organic cationic antibacterial agent that has a good balance between antibacterial properties and low skin irritation (low water solubility), and is relatively safe. It is a preferable agent for use in the article 1.

The antibacterial agent only needs to be contained in any part of the absorbent article 1. The content of the antibacterial agent per 1 m ^{2 of the} absorbent article is preferably 0.1 g / m ² or more, more preferably 0.2 g / m ² or more, and the upper limit is preferably 1.0 g / m ² or less. 0.5 g / m ² or less is more preferable. In particular, when the absorbent core 4a contains a water-absorbing polymer, the water-absorbing polymer preferably has an antibacterial agent on its surface. This makes it difficult for the body fluid absorbed and retained by the water-absorbing polymer to rot and further enhances the deodorizing effect. When the water-absorbing polymer contains an antibacterial agent, the content of the antibacterial agent is preferably 0.01% by mass or more, more preferably 0.02% by mass or more in the water-absorbing polymer. The upper limit is preferably 2% by weight or less, and more preferably 1.5% by weight or less.

  When the chemical deodorant and the physical deodorant described above are contained in the coating sheet 4b, the antibacterial agent is contained in the surface of the water-absorbing polymer instead of or in addition to the antibacterial agent. It is also advantageous that the chemical deodorant and the physical deodorant further contain an antibacterial agent in the covering sheet 4b. By making the antibacterial agent, chemical deodorant, and physical deodorant coexist in one coated sheet 4b, a broader deodorant spectrum is shown, and the production of various odorous substances derived from body fluids. Further suppression and deodorization are possible.

  What is necessary is just to select the chemical deodorizer and physical deodorizer which are contained in the absorbent article 1 with the kind of odor substance which volatilizes from the exuding body fluid. The odor substance can be identified by, for example, analyzing the exudate or collecting the odorous substance that is emitted by installing a collection device around the body surface where the body fluid exudes and analyzing it. Good. As a collecting tool for collecting the odor around the body, for example, the human torso, an adsorbent such as a silicone elastomer capable of adsorbing the odor can be used. Usually, since the body surface of the site where exudate is an affected area is damaged such as a laceration, it is difficult to apply the collecting tool directly to the affected area from the viewpoint of protecting the affected area. Therefore, by mounting the collecting tool in a state in which the collecting tool can be suspended around the affected area, it is possible to collect the odorous substances that volatilize without directly attaching the collecting tool to the affected area. The form of the collecting tool used in the present invention is not particularly limited as long as the collecting tool can be hung around the affected area and can be suspended. For example, as shown in FIGS. Examples include a collecting tool 6 in which a tube-like adsorbent 7 is passed through a string or thread to form a ring shape and is suspended from the patient's neck or ear around the affected area.

  In particular, from the viewpoint of accurately identifying the odorous substance to be volatilized, it is desirable that the collecting tool 6 can be hung and mounted at a position closer to the affected area as long as the quality of life of the patient is not hindered. For example, when there is an affected part in the chest, a method of suspending a collecting tool in the form shown in FIG. 5A around the neck as shown in FIG. Moreover, when it has an affected part in a neck part, the method of suspending the collection tool of a form as shown to Fig.6 (a) to an ear as shown in FIG.6 (b) is mentioned. Moreover, when it has an affected part in an abdominal part, the method of hanging the collection tool of the form shown to Fig.7 (a) on a neck as shown in FIG.7 (b) is mentioned.

  Since the adsorbent 7 used in the collector 6 is heated to a high temperature during the analysis of the volatile substance, it is extremely decomposed even under high temperature conditions and may cause trouble in handling. It is preferably a material that does not cause deformation and does not chemically react with the adsorbed volatile substance or generate a volatile substance (outgas) that interferes with analysis. As a material of the adsorbent 7, for example, any one of polysiloxanes introduced with at least one functional group of alkyl groups and aryl groups such as alkylpolysiloxanes, arylalkylpolysiloxanes, polyether-modified alkylpolysiloxanes, etc. Examples thereof include a silicone elastomer tube or sheet containing the above in a polymerized structure. Among these, a silicone elastomer containing, as a polymerized structure, at least one selected from methylpolysiloxane, phenylmethylpolysiloxane, and polyether-modified methylpolysiloxane is preferable, and has heat resistance, chemical resistance, and ease of cutting. From the viewpoint, a silicone elastomer containing polydimethylsiloxane as a main polymerization structure in a polymer chain is particularly preferable. Furthermore, it is preferable to heat-treat the tube or sheet in advance to remove low molecular components.

  As described above, according to the present invention, by applying a deodorizing action to the absorbent article 1, the absorbent article 1 is applied to the secretion site of the exudate on the body surface, and the exudation generated at the secretion site There is provided a deodorizing method for deodorizing a liquid odor. As an application site | part of the absorbent article 1, it can be set as the chest as shown in FIG.3 and FIG.4 mentioned above. As exudate, for example, exudate derived from cancer can be targeted. Advanced cancer that has infiltrated the skin has a peculiar odor, such as a rotten acid odor, but by applying the absorbent article 1 of this embodiment, not only the absorption of exudate but also the deodorizing action Therefore, it is possible to greatly reduce the physical and mental burden not only on the wearer but also on the nurse and caregiver.

  As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to the said embodiment. For example, the absorbent article 1 of the above embodiment is particularly suitable for application to the exudate secretion site in the chest, but the absorption and extinction of exudate from other body surface sites, such as the neck, etc. It can also be used for odors.

  Moreover, although the absorbent article 1 of the said embodiment was substantially symmetrical when seen along the longitudinal direction X and had a pair of level | step-difference parts 12, it replaced with this and the absorbent article 1 was used. Only one step 12 may be provided as an asymmetric shape.

  Moreover, in the said embodiment, since the main absorption part 10 and the auxiliary | assistant absorption part 20 were integrally formed, although the basic weight of the absorptive core 4a in these parts was the same, it replaced with this, You may vary the basic weight of the absorptive core 4a with the absorption part 10 and the auxiliary | assistant absorption part 20. As shown in FIG. For example, the basis weight of the absorbent core 4a in the auxiliary absorbent portion 20 may be made lower than the basis weight of the absorbent core 4a in the main absorbent portion 10 to improve the fit of the auxiliary absorbent portion 20 near the axilla.

  Moreover, in the said embodiment, although the absorptive core 4a in the main absorption part 10 and the auxiliary | assistant absorption part 20 was a one-stage structure, it replaces with this and the absorptive core in the main absorption part 10 and / or the auxiliary | assistant absorption part 20 is used. 4a can also have a multistage structure. It is preferable that the length and / or width of the absorbent core at each stage in the multi-stage absorbent core gradually decrease toward the topsheet 2 side.

  Hereinafter, the present invention will be described in more detail with reference to examples. However, the scope of the present invention is not limited to such examples.

[Sensory evaluation of odor]
<Example>
After the breast cancer patient wears the pad for 12 hours and collects the exudate absorbed, the pad is cut into 3cm squares (exudate 4g) and attached to the human model, and the example product (9cm squares) is placed on top of it. Further, a knitted cotton cloth (20 cm square) was further laminated and pasted thereon, and sensory evaluation of odor was performed. The sensory evaluation was performed according to the following six evaluation criteria. As deodorants, tris (hydroxymethyl) aminomethane and citric acid are used as chemical deodorants, zinc-supported aluminosilicates are used as physical deodorants, benzalkonium cetyl phosphate and piroctone olamine are used as antibacterial agents. did.

[Production of absorbent articles]
(1) Using a normal wet papermaking machine, a suspension of cellulose fibers containing zinc-supporting aluminosilicate is dehydrated using a papermaking wire to produce a zinc-supporting aluminosilicate-containing wet paper. Next, an aqueous solution containing the above-described chemical deodorant and antibacterial agent was applied to the wet paper to prepare a coated sheet. The addition amount of the deodorant and antimicrobial agent per cover sheet 1 m ² is tris (hydroxymethyl) aminomethane 0.056 g / ^{m 2} and citric acid 0.024 g / ^{m 2} (chemical deodorization as a chemical deodorant The total addition amount of the agent is 0.08 g / m ² ), the zinc-supporting aluminosilicate is 0.5 g / m ² as the physical deodorant, and the benzalkonium cetyl phosphate is 0.1 g / m ² as the antibacterial agent.
(2) As the water-absorbing polymer contained in the absorbent core, an acrylic acid-based water-absorbing polymer was used. As an antibacterial agent, 0.1% by mass of piroctone olamine was adhered to the surface of the water-absorbing polymer.
(3) A non-woven fabric comprising a polyester / polyethylene composite fiber in which an absorbent core obtained by mixing and weaving pulp and 4 g of a water-absorbing polymer is coated with the deodorant and antibacterial agent-containing coating sheet, and the surface sheet is hydrophilized. The back sheet produced the absorbent article of FIG. 1 using a stretched polyethylene film containing a fine inorganic filler. The content of the absorbent article 1 m ² per deodorant and antimicrobial agent, tris (hydroxymethyl) aminomethane 0.014 g / ^{m 2,} citric acid 0.006 g / ^{m 2,} the zinc-bearing aluminosilicate 0.123 g / m ^2, cetyl phosphate, benzalkonium 0.024 g / ^{m 2,} piroctone olamine was 0.004 g / ^{m 2.}

<Comparative example>
The sensory evaluation of odor was performed in the same manner as in Example 1 except that an absorbent article containing no deodorant and antibacterial agent was used instead of the Example product.

<Evaluation criteria for odor intensity>
0: Not smelling 1: Smelling slightly 2: Smelling weakly 3: Smelling 4: Smelling slightly strong 5: Smelling quite strongly

  When sensory evaluation was performed on Example 1 and Comparative Example 1, the odor intensity of Comparative Example 1 was 4, whereas the odor intensity of Example 1 was reduced to 1. It turns out that the odor intensity | strength by volatilization is suppressed by this invention product.

[Odor analysis evaluation]
As shown in FIG. 5 (a), a necklace-type collector having four or four silicone elastomers (manufactured by Imamura Co., Ltd.) 5 cm in length on a 50 cm long sewing thread made of polyester is created. We collected the causative substances of the odors that volatilized. Further, the collected odorous substance was detected under the following measurement conditions. In the collection, the silicone elastomer was heated in advance to remove low molecular components. The collection time for odorous substances was 30 minutes.

<Measurement conditions>
Thermal desorption system (TDS)-GC / MS system thermal desorption system: GERSTEL ThermoDesorption System
GC / MS: Agilent Technologies 6890N
Analytical column: DB-WAX (60m × 0.25mmID)
MS: Agilent Technologies 5975B inert XL MSD

As a result of analyzing the odorous substance to be volatilized, a known malodor component derived from cancer was detected in both Examples and Comparative Examples. When the total detected values of main normal butyric acid and isovaleric acid as breast cancer odor components were confirmed, as shown in FIG. 8, the detected values were lower in the examples than in the comparative examples.
From the above results, it can be seen that by using the product of the present invention, the effect of suppressing the odor emitted by not only sensory evaluation but also analytical evaluation was recognized.

DESCRIPTION OF SYMBOLS 1 Absorbent article 2 Top sheet 3 Back sheet 4 Absorber 4a Absorbent core 4b Cover sheet 5 Peripheral joint part 6 Collection tool 7 Adsorbent body 10 Main absorption part 11 Edge 12 of main absorption part Step part 13X, 13Y Main absorption Side edge 20 of auxiliary part Auxiliary absorption part 23X, 23Y Side edge of auxiliary absorption part

Claims (7)

An absorbent article having a liquid-permeable top sheet, a liquid-impermeable or liquid-impermeable back sheet, and a liquid-retaining absorbent disposed between the two sheets,
The absorbent article has a main absorbent part and an auxiliary absorbent part extending in one direction from one end of the main absorbent part,
The main absorbent portion has a width in a direction orthogonal to the one direction larger than the width of the auxiliary absorbent portion,
An absorbent article comprising a chemical deodorant and a physical deodorant in any part of the absorbent article. The absorbent body has an absorbent core and a liquid-permeable covering sheet that covers a surface of the absorbent core that faces the surface sheet;
The absorptive article according to claim 1 in which said covering sheet contains a chemical deodorant and a physical deodorant.   The absorbent article according to claim 1 or 2, wherein the absorbent core contains a water-absorbing polymer, and the water-absorbing polymer has an antibacterial agent on a surface thereof.   The absorptive article according to any one of claims 1 to 3 in which said covering sheet contains an antibacterial agent.   The absorbent article as described in any one of Claims 1 thru | or 4 applied to the secretion site | part of the exudate in a body surface.   A deodorizing method in which the absorbent article according to any one of claims 1 to 5 is applied to an exudate secretion site on a body surface to deodorize the exudate odor generated at the secretion site.   The deodorizing method according to claim 6, wherein the exudate is a cancer-derived exudate.

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