JP2007244764A - Sanitary absorbent article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sanitary absorbent article capable of safely and easily mitigating an unpleasant feeling peculiar to a catamenial symptom. <P>SOLUTION: The sanitary absorbent article includes an aromatic composition having green herbal aroma. The aromatic composition is imparted to one or not less than two members constituting the absorbent article. and it is preferable that the aromatic composition contains aromatic chemical such as cis-3-hexenol, formic acid cis-3-hexenyl, acetic acid cis-3-hexenyl, and propionic acid cis-3-hexenyl. In addition to it, it is preferable that the aromatic composition contains the aromatic chemical such as 1-menthol, 1,8-cineole, methyl salicylate, and alpha pinene. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a sanitary absorbent article with a scent effective for reducing premenstrual syndrome.

  In sanitary absorbent articles such as napkins and panty liners, scents may play an important role in products that are functional and have high added value. For example, the present applicant has previously proposed that a specific fragrance is used to eliminate an unpleasant odor caused by menstrual blood or the like (see Patent Document 1).

  By the way, it is known that women with ovulation (possible pregnancy) have a symptom called premenstrual syndrome (hereinafter referred to as PMS). PMS is defined as “a mental and physical symptom that begins 3 to 10 days before the start of menstruation and decreases or disappears with the onset of menstruation” (Japan Society of Obstetrics and Gynecology). PMS is a symptom that can occur to any woman with ovulation (possible pregnancy) and is not special. However, PMS is very annoying that recurs every menstrual cycle. In addition, the degree of symptom varies greatly from person to person, and there are some women who are not worried even if symptoms appear, and on the other hand, there are women who become difficult even in daily life. In particular, those with extremely severe symptoms are referred to as premenstrual dysphoric disorder (PMDD), and about 5% of women who complain of PMS symptoms need to be treated appropriately.

JP 2004-41407 A

  Therefore, the object of the present invention is that it can occur to any woman with ovulation (possible pregnancy), and among women-specific symptoms represented by PMS, in which many women are actually complaining. It is intended to relieve mental discomfort safely and easily without giving physical stimulation to the body and without using oral administration while using a product for daily use.

  The present invention achieves the above object by providing a sanitary absorbent article containing a fragrance composition having a green herbal-like fragrance.

  ADVANTAGE OF THE INVENTION According to this invention, the discomfort peculiar to a menstrual-related symptom can be relieve | moderated safely and simply, using the sanitary product which many women with ovulation (possible pregnancy) use.

  Hereinafter, the present invention will be described based on preferred embodiments thereof. The sanitary absorbent article of the present invention (hereinafter also simply referred to as an absorbent article) is mainly used to absorb and retain body fluids excreted from a woman's vagina, such as menstrual blood and vaginal excretion. The absorbent article of the present invention includes, for example, sanitary napkins, panty liners, and vaginal sheets, but is not limited thereto, and articles used for absorbing bodily fluids excreted from a woman's vagina. Widely encompass.

  The absorbent article of the present invention typically includes a top sheet, a back sheet, and a liquid-retaining absorbent body disposed between both sheets. In the case where the absorbent article is a panty liner or a cage sheet, the absorbent article may not be provided with an absorbent body and may be composed of a top sheet and a back sheet. As the top sheet and the back sheet, materials usually used in the technical field can be used without particular limitation. The absorbent article may further include various members according to specific uses of the absorbent article. Such members are known to those skilled in the art. For example, a pair of solid guards can be arranged on the left and right sides of the top sheet. Further, a liquid-permeable sheet called a supporter sheet or a second sheet can be disposed between the top sheet and the absorber. Furthermore, the adhesive layer for fixing an absorbent article to a wearer's underwear can also be formed in the underwear opposing surface of a back surface sheet. The pressure-sensitive adhesive layer is protected by release paper until the absorbent article is used.

  From the viewpoint of hygiene, the absorbent article may be individually packaged by a individually packaged film. The absorbent article referred to in the present invention includes those in the form of such individual packages.

  As the top sheet, a liquid-permeable material, for example, a fiber made of a thermoplastic resin, for example, polyethylene, polyester (polyethylene terephthalate), polypropylene, polyvinyl acetate, and composite fibers thereof are web-bonded by various methods known to those skilled in the art. Nonwoven fabrics, nonwoven fabrics in which cotton or rayon fibers are entangled by a method such as hydroentanglement, and apertured sheets in which a thermoplastic resin sheet is apertured by an appropriate method can be used. As the back sheet, for example, a liquid-permeable or water-repellent sheet such as a film mainly composed of polyethylene, polypropylene, or the like, or a composite sheet in which a film is laminated on one surface such as a spunbond nonwoven fabric can be used. The back sheet may have water vapor permeability. As the absorbent body, for example, an absorbent body made of absorbent paper, pulp, superabsorbent polymer or the like and used for normal sanitary products is used. As the supporter sheet or the second sheet, for example, a hydrophilic treatment is performed, and a nonwoven fabric having liquid permeability is used.

  The absorbent article of the present invention contains a fragrance composition. A fragrance | flavor composition can be provided to the 1 or 2 or more member which comprises an absorbent article. For example, a fragrance composition can be imparted to any one member or a combination of two or more members among a surface sheet, an absorber, a supporter sheet, a release paper, and an individual film.

  The absorbent article of the present invention is characterized in that the fragrance composition contains a fragrance having a green herbal-like fragrance. The fragrance | flavor here refers to the single fragrance | flavor raw material represented by the A group and B group mentioned later. In addition, the fragrance composition is a combination of a single fragrance material, or a fragrance material composed of a plurality of fragrances such as natural essential oil or a blended base, and includes those diluted and adjusted with a solvent. By including in the absorbent article a fragrance composition containing a fragrance having a green herbal-like fragrance, the action of the green herbal-like fragrance produced from the fragrance makes it particularly psychological among the menstrual symptoms typified by PMS. It is possible to relieve unpleasant symptoms safely and easily without giving physical stimulation to the body and without oral administration. In addition, a comfortable feeling can be obtained.

  From the viewpoint of maintaining the discomfort mitigating effect due to the green herbal-like fragrance for a long period of time, the absorbent article of the present invention is preferably individually packaged.

  The green herbal-like fragrance is an incense tone including a green-like fragrance (green note) or a herbal-like fragrance (herbal note). Green-like aroma means a refreshing scent of grass and young leaves. Herbal-like fragrance (herbal note) is a natural and herb-like fragrance that uses herbs.

  The green herbal-like fragrance composition used in the present invention comprises cis-3-hexenol, cis-3-hexenyl formate, cis-3-hexenyl acetate, cis-3-hexenyl propionate, cis-3-hexenyl butyrate, trans -2-hexenal, trans-2-hexenyl acetate, hexyl acetate, styryl acetate, 2-methyl-3- (3,4-methylenedioxyphenyl) -propanal (IFF company name, helional), 3 (4)-( 5-ethylbicyclo [2,2,1] heptyl-2) -cyclohexanol, allyl 2-pentyloxyglycolate (IFF company name, allyl amyl glycolate), 4-methyl-3-decen-5-ol (Givaudan company name) ), Hexyl aldehyde, 2,4-dimethyl-3-cyclohexenyl Carboxymethyl aldehyde (IFF name, Toripuraru) and the group consisting of phenyl acetaldehyde (hereinafter, this group of group A) preferably contains one or more flavoring agents selected from. Commercial products can also be used as these fragrances. For example, a fragrance comprising a mixture mainly composed of 3 (4)-(5-ethylbicyclo [2,2,1] heptyl-2) -cyclohexanol is commercially available from Kao Corporation under the trade name Magnol. Yes. The fragrance | flavor contained in A group mainly produces a green-like aroma.

  Among group A fragrances, in particular cis-3-hexenol, cis-3-hexenyl formate, cis-3-hexenyl acetate, cis-3-hexenyl propionate, cis-3-hexenyl butyrate, trans-2-hexenyl acetate, Hexyl acetate, styryl acetate, 2-methyl-3- (3,4-methylenedioxyphenyl) -propanal, magnole, allyl 2-pentyloxyglycolate, 4-methyl-3-decen-5-ol, hexyl aldehyde It is preferable to use one or more fragrances selected from the group consisting of 2,4-dimethyl-3-cyclohexenylcarboxaldehyde and phenylacetaldehyde, and in particular, cis-3-hexenol, cis-3-hexenyl acetate , Hexyl acetate, styryl acetate, 2-methyl-3- (3,4-methylene Dioxy phenyl) - propanal, it is preferable to use one or more perfume is selected from the group consisting of Magunoru and 2,4-dimethyl-3-cyclohexenyl carboxaldehyde.

  The group A fragrance is preferably contained in the fragrance composition in an amount of 0.5 to 30% by mass, particularly 1 to 20% by mass.

  The green herbal-like fragrance composition used in the present invention includes, in addition to the group A fragrance, 1-menthol, 1,8-cineole, methyl salicylate, α-pinene, β-pinene, citronellal, camphor 1 or 2 or more kinds of fragrance selected from the group consisting of borneol, isobornyl acetate, terpinyl acetate, eugenol, anethole, 4-methoxybenzyl alcohol and estragal (hereinafter referred to as group B) Is preferred. The fragrance | flavor contained in B group mainly produces a herbal-like fragrance.

  Among group B fragrances, it is particularly preferable to use one or more fragrances selected from the group consisting of l-menthol, 1,8-cineol, methyl salicylate, α-pinene, terpinyl acetate, eugenol and anethole. It is preferable to use eugenol, particularly.

  The group B fragrance is preferably contained in the fragrance composition in an amount of 1 to 30% by mass, particularly 5 to 20% by mass.

  The group A and group B fragrances are prepared, for example, with a suitable solvent to form a fragrance composition. Examples of the solvent include glycerin, propylene glycol, dipropylene glycol, isopropyl myristate, triethyl citrate, 1,3-butylene glycol, polyethylene glycol, and ethanol.

  In a fragrance | flavor composition, you may mix | blend another fragrance | flavor raw material to such an extent that a green herbal-like aroma is not impaired. Other fragrance materials include all fragrances or fragrance compositions having a fragrance other than green herbal. For example, citral, limonene, geraniol, citronellol, linalool, phenylethyl alcohol, benzyl acetate, methyl dihydrojasmonate, terpineol, α-damascone, β-damascone, vanillin, coumarin, heliotropin, galaxolide, pentalide, ethylene brushate, salicylic acid These include simple fragrances such as cis-3-hexenyl and hexyl salicylate, and natural essential oils such as floral, woody, citrus and fruity, formulated bases, and the like.

  The amount of the fragrance composition contained in the absorbent article of the present invention may be an amount that sufficiently provides a psychologically positive effect, and depends on the size of the absorbent article. Preferably, it may be appropriately selected from the range of 0.3 to 100 mg, more preferably 0.3 to 20 mg, and still more preferably 0.3 to 5 mg. By making the amount of the fragrance composition contained in the absorbent article within such a range, the odor and feeling of use of the fragrance composition itself can be made sufficient, and the discomfort mitigating effect can be made sufficient. .

  It is preferable that a fragrance | flavor composition is uniformly provided to the structural member of an absorbent article. The imparting of the fragrance composition to these members can be performed using means such as impregnation, coating, and kneading. Specifically, the following methods (1) to (4) can be used.

(1) A continuous strip of each member or a continuous strip of these raw materials (for example, paper, non-woven fabric, etc.) is transported through a plurality of rollers, etc. From the supply nozzle, the continuous band is dropped or sprayed in the form of a mist to impregnate the continuous band in a predetermined amount.

(2) A continuous strip of each member or a continuous strip of these raw materials (for example, paper, nonwoven fabric, etc.) is conveyed through a plurality of rollers, and impregnated with a fragrance composition at a predetermined position during conveyance. The roller body is rotated and brought into contact with the upper surface of the continuous strip, and a predetermined amount of the perfume composition is transferred and impregnated into the continuous strip.

(3) A continuous strip of each member or a continuous strip of these raw materials (for example, paper, nonwoven fabric, etc.) is conveyed through a plurality of rollers and the impregnated body of the fragrance composition at a predetermined position during the conveyance. Is intermittently brought into contact with the upper surface of the continuous strip in a stamp form, and a predetermined amount of the perfume composition is transferred and impregnated into the continuous strip.

(4) Each member having a predetermined size is placed on the conveyor belt at predetermined intervals, and impregnated into the absorbent body or the top sheet according to the methods (1) to (3). Moreover, you may impregnate the fragrance | flavor composition by the appropriate means to the absorbent article manufactured. Furthermore, when manufacturing an absorber and a surface sheet, it is also possible to add and mix a fragrance composition into the raw material of the absorber or the raw material of the surface sheet (for example, pulp, polymer, etc.).

  Among the methods (1) to (4), in the methods (1) to (3), when the perfume composition is impregnated in the continuous strip of each member, the impregnated perfume composition The continuous strip is used after being cut into an absorbent body or a surface sheet having a predetermined size and shape.

  When the absorbent article of the present invention is impregnated with a fragrance composition, the fragrance composition may be diluted with a diluent. In this case, the dilution rate is preferably 10 to 90% by mass, particularly preferably 30 to 70% by mass. As the diluent, water, ethanol, propanol, low molecular hydrocarbons, liquefied petroleum gas, diethyl ether, or the like can be used. When the fragrance composition is solubilized and dispersed in water, an anionic surfactant, a cationic surfactant, a nonionic surfactant, or an amphoteric surfactant can be used as a solubilizer.

  The absorbent article of the present invention is effective not only for use during menstruation in the form of a sanitary napkin, but also when used before menstruation. In general, it is said that two out of three women experience premenstrual syndrome in adult women, so it is very effective to use the absorbent article of the present invention during a PMS period of 3 to 10 days before menstruation. When the absorbent article of the present invention is used during the PMS period before menstruation, it is particularly effective to use the absorbent article in the form of a panty liner or a cage sheet.

  In particular, when the absorbent article of the present invention is individually packaged by an individual packaging sheet to form an individual packaging, the fragrance that is fragrant is effective for the user each time the absorbent article is taken out of the packaging body. The user's feelings are refreshed by being encouraged. In particular, higher effects can be expected by taking actions such as inhaling fragrances. For example, when the absorbent article of the present invention is taken out from a small space such as a bag or a bag, or when the absorbent article of the present invention is replaced in a narrow and highly sealed space such as a toilet, the scent is particularly effective. Can feel.

  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.

[Example 1 and Comparative Examples 1 and 2]
A release paper of a Laurie (registered trademark) panty liner manufactured by Kao Corporation was impregnated with a fragrance composition having a formulation shown in Table 1 below. The impregnation amount was 1.0 mg / sheet. The panty liner thus obtained is referred to as Example 1. As the panty liner of Comparative Example 1, the one obtained by impregnating a perfume composition (floral-like, soap-like aroma) of the formulation shown in Table 1 below by the same operation as in Example 1 was used. The impregnation amount was 1.0 mg / sheet. As the panty liner of Comparative Example 2, the panty liner itself not impregnated with the fragrance composition was used.

  For 24 female subjects, each subject was evaluated according to the following flow. Prior to the start of the experiment, subjects were asked to answer the PMS symptoms of the day using “PMS memory” (details of the PMS memory will be described later). All subjects complained of some PMS symptoms to varying degrees. After the answer, the subject entered the constant temperature evaluation room (temperature 24.0 ° C./SD: ± 0.7 ° C., humidity 39.4% RH / SD: ± 3.7%) and put it on a chair. Then, an electroencephalogram sensor was attached to each subject's forehead. Next, each subject was made to smell the panty liner (unscented product) of Comparative Example 2, and electroencephalogram measurement was performed while presenting the smell (details of electroencephalogram measurement will be described later). Furthermore, after the presentation, an answer was obtained on the mood rating scale (details of the mood rating scale will be described later). Next, either the panty liner of Example 1 or Comparative Example 2 was presented, electroencephalogram measurement was performed during scent presentation, and an answer was obtained on a mood rating scale after scent presentation. Thereafter, the same evaluation was performed on the scent of the panty liner different from the second, and a total of three evaluations were performed per person. The scent presentation time was approximately 2 minutes per session.

  The presentation method of the scent was as follows. Two adhesive surfaces to the underwear in the panty liner were bonded together and cut into approximately 1.5 cm images. This was put into an acrylic cylindrical transparent tube container (height 105 mm × diameter 95 mm) with a lid. The scent was presented from the tube mouth of the container.

  The evaluation results are as follows. In FIG. 1, the average value of the comfort level, which is the result of the electroencephalogram analysis of all the evaluated subjects, is shown for each scent condition. Example 1 (product of the present invention) tended to have a higher comfort score than Comparative Example 1 (floral-like, soap-like fragrance) and Comparative Example 2 (unscented product).

  Next, mood rating was examined. The average score of the mood factor after conducting the experiment under each experimental condition is calculated, and the difference between after presentation of the unscented product (Comparative Example 2) and after presentation of each flavored product (Example 1 and Comparative Example) ( Change value). Among these, the sum of the scores of the four factors, which are unpleasant mood factors, was used as the discomfort score, and the change values were compared. The result is shown in FIG. As is clear from the results shown in FIG. 2, the discomfort score was statistically significantly reduced in Example 1 compared to Comparative Example 1 and Comparative Example 2 (Example 1-Comparative Example 2: Significance probability). p <0.01, Example-Comparative Example 1: Significance probability p <0.05). However, no significant difference was obtained between Comparative Example 1 and Comparative Example 2. These results suggest that Example 1 has an effect of reducing discomfort than Comparative Example 1.

  On the other hand, immediately after the evaluation, subjects were classified based on the score of the PMS memory that was answered. FIG. 3 shows a comparison of the comfort levels in the electroencephalogram analysis of the high score group (upper 6 people) and the low score group (lower 6 people). The average score of comfort was higher in the high score group in both Example 1 and Comparative Example 1 than in the control condition, but a statistically significant difference (p <0.05) was obtained between the control condition and Example 1. It was. However, in the low score group, both Example 1 and Comparative Example 1 were slightly lower. As a result, it was found that the tendency for the comfort level to be higher than the control condition was recognized in the group with a high PMS score due to the presentation of the scent. Especially, it was recognized that the tendency of Example 1 was stronger than that of Comparative Example 1. In addition, in the mood rating scale, as shown in FIGS. 4 and 5, each of Example 1 and Comparative Example 1 is a comparative example of “feeling”, “lively”, and “exhilarating” which are pleasant mood factors. It was confirmed that the change value for 2 tended to be larger in the PMS high score group than in the low score group.

  From the above results, it was found that Example 1 (product of the present invention) acts more effectively on a group with severe PMS symptoms.

[Examples 2 and 3]
A panty liner was obtained in the same manner as in Example 1 except that the fragrance composition having the formulation shown in Table 2 was used instead of the formulation shown in Table 1. When the obtained panty liner was evaluated in the same manner as in Example 1, almost the same result as in Example 1 was obtained. In particular, the panty liner of Example 2 impregnated with the fragrance composition containing the fragrances of Group A and Group B was highly evaluated.

  Details of the indicators used for the above evaluation will be described below.

[Electroencephalogram measurement]
The comfort level was measured using a simple α-wave rhythm monitor developed by Noriyuki Yoshida, Biotechnology Institute of Industrial Technology. Details regarding this device are described in, for example, Japanese Patent Laid-Open No. 6-165765. Electroencephalogram electrodes were attached to two frontal regions of Fp1 and Fp2 according to the International 10-20 method, and frontal brain waves were recorded using the right earlobe as the ground and the left earlobe as the reference electrode. The average fluctuation spectrum of the recorded EEG for 102.4 seconds is obtained, the inflection point is obtained from the obtained fluctuation spectrum for each part, the slope coefficient of the low frequency band is calculated from the inflection point, and the fluctuation is calculated. Rhythm coefficient was used. In general, it is said that the fluctuation coefficient is closer to -1, the emotional state is better, the comfortable and comfortable state, and the closer to 0, the worse the emotional state is. The “comfort level” defined by this device is calculated from 0 to 100% based on the values of the right and left rhythm levels.
Comfort level = (√ [[(Left rhythm degree) × (Left rhythm degree) + (Right rhythm degree) × (Right rhythm degree)] / 2]) × 100 (%)
As a result of statistically processing these, it is possible to objectively grasp the level of pleasantness and discomfort reflecting the psychological state from brain activity, and it is possible to relatively verify the difference in the effect between the presented scent conditions Become.

[Mood Rating Scale]
Using the “Smell Rating Scale by Scent” developed to see the influence of scents on psychological aspects such as mood and emotion (Aroma Research, Vol. 4, No. 3, p. 29-34, (2003)) It was. As shown in Table 3, pleasant and unpleasant moods are each composed of 4 factors, a total of 8 mood factors, and each factor is composed of 3 items of emotion adjectives. For the subjects, the degree of their current mood is 5 levels (0: I don't think so at all, 1: I think so slightly, 2: I think so, 3: I think so, 4: I think so, (Calculate) In this invention, about the influence which a fragrance has on the psychological aspect, after the control conditions (Comparative Example 2) of all subjects and after each fragrance product (Example 1 and Comparative Example 1) presentation conditions, The effect of the difference between the conditions on the mood was examined by the average value or the difference value.

[PMS memory]
The PMS memory was developed by the Menstrual Liaison Council and the Japan Family Planning Association for diagnosis of PMS. This is a diary booklet with a list of symptoms associated with menstruation (menstrual symptoms) frequently attached to Japanese women, and the subjects themselves recording daily symptoms and degrees. As shown in Table 4, the symptom list includes 25 physical symptoms, 15 mental symptoms, and 12 social symptoms. The subject records the degree of symptom on a 4-point scale (0: no symptoms, 1: there is a little, but there is no effect on daily life, 2: there is an effect on daily life, 3: vigorous). In this example, the items in this list were used, and the subjects were asked to answer about the degree of symptoms (before evaluation) on the test day.

It is a graph which shows the average value of the comfort level which is a result of an electroencephalogram analysis. It is a graph which shows the average score of discomfort. It is a graph which shows the comfort level in an electroencephalogram measurement. 3 is a graph showing a change score of a pleasant mood factor in Example 1; It is a graph which shows the change score of the pleasant mood factor in the comparative example 1.

Claims (3)

  A sanitary absorbent article containing a fragrance composition having a green herbal-like fragrance.   A green herbal-like fragrance composition comprising cis-3-hexenol, cis-3-hexenyl formate, cis-3-hexenyl acetate, cis-3-hexenyl propionate, cis-3-hexenyl butyrate, trans-2-hexenal, Trans-2-hexenyl acetate, hexyl acetate, styryl acetate, 2-methyl-3- (3,4-methylenedioxyphenyl) -propanal, 3 (4)-(5-ethylbicyclo [2,2,1] heptyl -2) selected from the group consisting of -cyclohexanol, allyl 2-pentyloxyglycolate, 4-methyl-3-decen-5-ol, hexylaldehyde, 2,4-dimethyl-3-cyclohexenylcarboxaldehyde and phenylacetaldehyde The sanitary absorptivity according to claim 1, comprising one or more perfumes. Goods. The green herbal-like fragrance composition further comprises 1-menthol, 1,8-cineole, methyl salicylate, α-pinene, β-pinene, citronellal, camphor, borneol, isobornyl acetate, tarpinyl acetate, eugenol, anethole, 4- The sanitary absorbent article according to claim 2, comprising one or more fragrances selected from the group consisting of methoxybenzyl alcohol and estragole.

Images