JP2002159460A - Method of evaluating and choosing absorbent item - Google Patents
Method of evaluating and choosing absorbent itemInfo
- Publication number
- JP2002159460A JP2002159460A JP2001255105A JP2001255105A JP2002159460A JP 2002159460 A JP2002159460 A JP 2002159460A JP 2001255105 A JP2001255105 A JP 2001255105A JP 2001255105 A JP2001255105 A JP 2001255105A JP 2002159460 A JP2002159460 A JP 2002159460A
- Authority
- JP
- Japan
- Prior art keywords
- diaper
- urination
- wearer
- wave
- wearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002745 absorbent Effects 0.000 title claims abstract description 39
- 239000002250 absorbent Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000027939 micturition Effects 0.000 claims description 30
- 210000004556 brain Anatomy 0.000 claims description 29
- 238000001228 spectrum Methods 0.000 claims description 13
- 238000000537 electroencephalography Methods 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 18
- 239000002504 physiological saline solution Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- 238000011156 evaluation Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000001953 sensory effect Effects 0.000 description 6
- 210000002700 urine Anatomy 0.000 description 6
- 206010029216 Nervousness Diseases 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 210000003169 central nervous system Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 4
- 230000035807 sensation Effects 0.000 description 4
- 235000019615 sensations Nutrition 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 210000003128 head Anatomy 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000000692 Student's t-test Methods 0.000 description 2
- 206010043268 Tension Diseases 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 210000004251 human milk Anatomy 0.000 description 2
- 235000020256 human milk Nutrition 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 238000012353 t test Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 206010012289 Dementia Diseases 0.000 description 1
- 206010012442 Dermatitis contact Diseases 0.000 description 1
- 206010012444 Dermatitis diaper Diseases 0.000 description 1
- 208000003105 Diaper Rash Diseases 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 206010021639 Incontinence Diseases 0.000 description 1
- 206010021703 Indifference Diseases 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000003925 brain function Effects 0.000 description 1
- GTKRFUAGOKINCA-UHFFFAOYSA-M chlorosilver;silver Chemical compound [Ag].[Ag]Cl GTKRFUAGOKINCA-UHFFFAOYSA-M 0.000 description 1
- 208000010247 contact dermatitis Diseases 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002003 electrode paste Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000002175 menstrual effect Effects 0.000 description 1
- 230000005906 menstruation Effects 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 230000006996 mental state Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 210000000869 occipital lobe Anatomy 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000001936 parietal effect Effects 0.000 description 1
- 230000036385 rapid eye movement (rem) sleep Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 210000004761 scalp Anatomy 0.000 description 1
- 230000007958 sleep Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、紙オムツ、生理用
ナプキンなどの吸収性物品を、評価、選択する方法に関
する。より詳しくは、脳波を測定して、その変動を指標
として着用者自身の生理的および心理的要求に合致した
吸収性物品を評価、選択する方法に関する。The present invention relates to a method for evaluating and selecting absorbent articles such as disposable diapers and sanitary napkins. More specifically, the present invention relates to a method for measuring an electroencephalogram and evaluating and selecting an absorbent article that meets the physiological and psychological requirements of the wearer using the fluctuation as an index.
【０００２】[0002]
【従来の技術】現在、市場では、紙オムツ、生理用ナプ
キン、おりものライナー、母乳パットなどの吸収性物品
は、その大きさ（長さ、厚みなど）、形状、吸収量、価
格等により、分類されて販売されている。そのため、購
入者は、これらの大きさ、形状等の外形、吸収量、価格
等を基準にして、吸収性物品を選択して購入している。
また、売場においても、通常専門の販売員がいないた
め、購入者は、商品棚に配置された物品を、商品パッケ
ージに表示されるサイズ、形状、吸収量などに基づいて
選択して、購入しているのが実状である。2. Description of the Related Art At present, in the market, absorbent articles such as disposable diapers, sanitary napkins, vagina liners, breast milk pads, etc., have different sizes (length, thickness, etc.), shapes, absorption amounts, prices, and the like. Classified and sold. Therefore, the purchaser selects and purchases an absorbent article based on the size, shape, and other external shapes, absorption amount, price, and the like.
In addition, since there is usually no specialized sales person at the sales floor, the purchaser selects and purchases the articles placed on the product shelf based on the size, shape, absorption amount, etc. displayed on the product package. That is the fact.
【０００３】例えば、乳幼児用オムツにおいては、体重
によるサイズ（新生児用、Ｓ、Ｍ、Ｌ等）、及び起立歩
行できるか否かによる分類（テープによる組立型、パン
ツ型）によって、大人用紙オムツにおいては、ウエスト
サイズ（Ｓ、Ｍ、Ｌ等）、及び形状によって、購入者が
商品を選択して購入している。しかしながら、乳幼児オ
ムツや大人用紙オムツの場合には、通常購入者と使用者
（着用者）とが異なるために、購入者、すなわち介助者
や介護者などの意向で、大きさや漏れにくさなどから判
断されて商品が選択されているのが通常である。特に、
言語・運動能力の未発達な乳幼児、あるいは痴呆の症状
が出ている高齢者においては、その傾向が強い。[0003] For example, in diapers for babies and infants, depending on the size according to weight (for newborns, S, M, L, etc.) and the classification based on whether or not the user can stand up (assembled with tape, pants type), adult paper diapers are used. Is purchased and selected by the purchaser according to waist size (S, M, L, etc.) and shape. However, in the case of infant diapers and adult paper diapers, since the purchaser and the user (wearer) are usually different, the size, leakage, etc. of the purchaser, It is normal that a product is selected after being determined. In particular,
This tendency is strong in infants with poor language and motor skills or in elderly people who have symptoms of dementia.
【０００４】このために、着用者自身の生理的、心理的
要求に合致した商品を選択することになっておらず、結
果として着用者の装着感（肌触り、締め付け感、動き易
さ）に劣る商品を選択してしまう恐れがあり、結果とし
て、人体の外面的に起こるオムツかぶれ（接触皮膚炎）
等の疾患を引き起こしたり、着用者のストレスの原因と
なったりしている。[0004] For this reason, products that meet the physiological and psychological requirements of the wearer themselves are not selected, and as a result, the wearer's feeling of wearing (feeling, tightening, and ease of movement) is inferior. Diaper rash (contact dermatitis) on the outside of the human body as a result of the risk of selecting a product
Etc., or cause stress on the wearer.
【０００５】また、生理用ナプキンにおいては、吸収量
と長さ（多い日、少ない日）、及び形状（羽根の有無）
などによって、商品を選択して購入している。生理用ナ
プキンの場合には、通常、購入者と使用者（着用者）と
が一致しているために、使用者の体調及び嗜好性（肌触
り、形状、吸収量等）に合う商品を、使用者の使用経験
の中から選択して購入することができるが、使用者自身
が使用経験から認識している生理的、心理的要求が正し
いとは限らず、結果的にストレスの原因となっている場
合がある。さらには、若年層の使用者は、ナプキン使用
経験が少ないために、真の生理的、心理的要求に合致し
た製品を選ぶのが困難であり、その選択基準が嗜好に傾
く傾向がある。In the case of sanitary napkins, the absorption amount, length (large days, small days), and shape (presence or absence of blades)
For example, a product is selected and purchased. In the case of sanitary napkins, since the purchaser and the user (wearer) usually match, use products that match the user's physical condition and taste (feel, shape, absorption amount, etc.). Can be purchased from the user's experience, but the physiological and psychological requirements that the user perceives from the experience are not always correct, and may cause stress. May be. Furthermore, younger users have little experience in using napkins, so it is difficult to select products that meet true physiological and psychological requirements, and the selection criteria tend to be inclined toward taste.
【０００６】オムツや生理用ナプキンなどの吸収性物品
の商品開発や製造の現場では、このような市場の現況に
ひきずられ、購入者の嗜好・簡便性を追いかけるあまり
に、商品性能の開発が、着用者自身の真の生理的、心理
的要求から乖離してしまっている可能性がある。しかし
ながら、このような状況を是正するための方法は、従来
開発されておらず、着用者自身の快適性、装着感に合致
した吸収性物品を評価、選択するための適正な指標（メ
ジャー）がないのが実状である。[0006] In the field of product development and manufacture of absorbent articles such as diapers and sanitary napkins, such market conditions have led to the pursuit of purchasers' preferences and simplicity. May deviate from the true physiological and psychological requirements of the individual. However, a method for correcting such a situation has not been developed so far, and an appropriate index (measure) for evaluating and selecting an absorbent article that matches the comfort and wearing feeling of the wearer has been developed. There is no actual situation.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、上記のよう
な従来技術の問題点を解決することを課題とする。すな
わち、紙オムツや生理用ナプキンなどの吸収性物品を使
用する着用者自身の生理的、心理的要求に合致した吸収
性物品の評価、選択方法を提供することを課題とする。
より詳細には、オムツや生理用ナプキンなどの吸収性物
品を開発、製造する生産者において、着用者自身の快適
性などの生理的及び心理的要求により近い物品を選択、
評価できる方法、及びオムツや生理用ナプキンなどの吸
収性物品の購入者が着用者自身の生理的、心理的要求に
より合致した物品を選択することができる方法を提供す
ることを課題とする。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art. That is, it is an object of the present invention to provide a method of evaluating and selecting an absorbent article that matches the physiological and psychological requirements of a wearer who uses an absorbent article such as a disposable diaper or a sanitary napkin.
More specifically, in producers who develop and manufacture absorbent articles such as diapers and sanitary napkins, select articles that are closer to physiological and psychological requirements such as the wearer's own comfort,
It is an object to provide a method that can be evaluated, and a method that enables a purchaser of an absorbent article such as a diaper or a sanitary napkin to select an article that matches the physiological and psychological requirements of the wearer.
【０００８】[0008]
【課題を解決するための手段】本発明者らは、上記の課
題を解決するために、鋭意研究した結果、脳波の変動を
指標（メジャー）とすることによって、吸収性物品を評
価、選択できることを見出し、本発明に至った。本発明
者らは、着用者の生理的状況及び心理的状況を客観的に
推測できる指標を種々検討した結果、脳波に着目し、着
用者の脳波の変動を測定したところ、該変動が吸収性物
品の快適性と関係を有することを見出した。言い換えれ
ば、吸収性物品を装着していて、快適と感じる時と不快
と感じる時とで、脳波の変動の仕方に差が生じることを
見出し本発明に至ったものである。Means for Solving the Problems The present inventors have conducted intensive studies in order to solve the above-mentioned problems, and as a result, have been able to evaluate and select an absorbent article by using a change in brain waves as an index (measure). And found the present invention. The present inventors have studied various indices that can objectively infer the physiological and psychological conditions of the wearer.As a result, focusing on the brain waves and measuring the fluctuations of the wearer's brain waves, the fluctuations are absorptive. It has been found to have a relationship with the comfort of the article. In other words, the present inventors have found that there is a difference in the manner of fluctuation of the electroencephalogram between when the user wears the absorbent article and feels comfortable and when the user feels discomfort.
【０００９】すなわち本発明は、（１）脳波の変動を指
標として、吸収性物品の良否を評価する方法、（２）着
用者の脳波の変動を指標として、着用者に合致した吸収
性物品を選択する方法、（３）α波の変動を指標とする
上記（１）または（２）に記載の方法、（４）吸収性物
品を着用した着用者の脳波のパワースペクトルを、排尿
前から排尿後にかけて測定し、排尿後の時間経過による
該パワースペクトルの変動を指標として用いることを特
徴とする前記（１）ないし（３）のいずれかの方法、に
関するものである。That is, the present invention provides (1) a method of evaluating the quality of an absorbent article using the change in brain waves as an index, and (2) an absorbent article matching the wearer using the change in the brain waves of the wearer as an index. (3) the method according to (1) or (2) above, wherein the change in α-wave is used as an index, and (4) the urinary EEG power spectrum of the wearer wearing the absorbent article before urination. The method according to any one of the above (1) to (3), characterized in that the measurement is performed later and the fluctuation of the power spectrum over time after urination is used as an index.
【００１０】本発明では、脳波、特にα波の変動を指標
として吸収性物品を評価することで、着用者自身の快適
性などの生理的、心理的要求に合致した吸収性物品が、
客観的且つ簡便に選択、評価できるという効果を奏する
ことができる。According to the present invention, an absorbent article that meets physiological and psychological requirements such as the comfort of the wearer itself is evaluated by evaluating the absorbent article using an electroencephalogram, particularly a change in α-wave, as an index.
The effect of being able to select and evaluate objectively and easily can be achieved.
【００１１】[0011]
【発明の実施の形態】以下に、本発明を詳細に説明する
が、本発明は、これに限定されるものではない。本発明
における吸収性物品には、紙オムツ、生理用ナプキン、
生理用タンポン、陰唇間吸収性パッド、おりものライナ
ー、母乳パットが挙げられるが、その他、本発明は、失
禁用ショーツ等にも適用できる。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail, but the present invention is not limited thereto. The absorbent article according to the present invention includes a paper diaper, a sanitary napkin,
Mention may be made of sanitary tampons, interlabial absorbent pads, vaginal liners and breast milk pads, but the invention is also applicable to incontinence shorts and the like.
【００１２】脳波は、中枢神経系の指標となるものであ
るが、周波数帯により、４Ｈｚ未満のδ波、４Ｈｚ以上
で８Ｈｚ未満のθ波、８Ｈｚ以上で１３Ｈｚ以下のα
波、及び１３Ｈｚ以上で３０Ｈｚ未満のβ波などに分類
される。δ波は、正常成人の覚醒時には殆ど見られず、
脳機能の低下に対応し、深睡眠期に発生する。θ波は、
入眠時、レム睡眠期に発生する。α波は、閉眼・安静時
で、身体が緊張していなく、精神活動があまり活発でな
いときに特に後頭・頭頂部に発生し、β波は、覚醒時に
皮質全体から発生する。本発明においては、特に身体の
リラックス状態と関係するα波に着目し、オムツなどの
吸収性物品の快適性との関係を検討した。The brain wave is an index of the central nervous system. Depending on the frequency band, a δ wave of less than 4 Hz, a θ wave of 8 Hz or more and less than 8 Hz, and an α wave of 8 Hz or more and less than 13 Hz is used.
Waves, and β waves of 13 Hz or more and less than 30 Hz. δ waves are hardly seen when a normal adult awakens,
Occurs during deep sleep, corresponding to a decline in brain function. θ wave is
When falling asleep, it occurs during REM sleep. α-waves are generated especially in the occiput / parietal region when the eyes are closed and at rest, the body is not nervous, and mental activity is not very active, and β-waves are generated from the entire cortex when awake. In the present invention, attention was paid particularly to the α-waves related to the body's relaxed state, and the relationship with the comfort of an absorbent article such as a diaper was examined.
【００１３】脳波の測定は、ポリグラフ、脳波計などの
通常の脳波測定装置を用いて測定できる。以下に、その
測定方法の一例を示す（日本生理人類学会計測研究部会
編「人間科学計測ハンドブック」技報堂出版113〜134頁
参照）。The measurement of the electroencephalogram can be performed using a general electroencephalogram measuring device such as a polygraph or an electroencephalograph. An example of the measurement method is shown below (see “Handbook of Human Science Measurement” edited by the Measurement and Research Subcommittee of the Japanese Society of Physiological Anthropology, Gihodo Shuppan, pp. 113-134).
【００１４】脳波導出のための電極には、銀−塩化銀の
皿電極を用いる。頭部の電極を装着する皮膚表面をアル
コール綿で清拭し、国際電極配置法（１０−２０法）に
従い、電極ペーストをつけた電極を装着する。各電極に
おける皮膚表面の電位を交流アンプにより増幅する。出
力信号をＡ／Ｄ変換機に送り、デジタル信号に変換し、
データをＤＡＴ、ＭＯ等の媒体に記憶させ、得られたパ
ワースペクトルを解析する。A silver-silver chloride dish electrode is used as an electrode for deriving an electroencephalogram. The skin surface on which the electrode on the head is to be mounted is wiped with alcohol cotton, and the electrode with the electrode paste is mounted according to the international electrode placement method (10-20 method). The potential of the skin surface at each electrode is amplified by an AC amplifier. Send the output signal to the A / D converter, convert it to a digital signal,
The data is stored in a medium such as DAT or MO, and the obtained power spectrum is analyzed.
【００１５】頭皮上の１３点において、前記のパワース
ペクトル解析を行い、脳波と吸収性物品の装着感の関係
を試験した。以下に、その試験方法と試験結果とを示
す。試験に用いる吸収性物品として下記の２種類のパン
ツ型オムツを準備した。At 13 points on the scalp, the above power spectrum analysis was performed to test the relationship between brain waves and the feeling of wearing the absorbent article. The test method and test results are shown below. The following two types of pants-type diapers were prepared as absorbent articles used in the test.
【表１】 注）吸収速度：２００mlの生理食塩水をオムツ表面に投
入し、生理食塩水の全量がトップシートから吸収される
までの時間。 リウェット量：２００mlの生理食塩水を投入して、５分
後にトップシート表面に３５g/cm2荷重下でろ紙を置
き、ろ紙に吸収された生理食塩水の量。 吸収量：オムツ全体を３０分間生理食塩水に浸漬し、引
き上げて、３５g/cm2荷重下で、２０分間水を切った重
量から、吸収前の重量を引いたもの。（ｇ／ｐは、オム
ツ一つ当たりの吸収重量を表わす）。 保水量：吸収量の測定操作後、１５０Ｇで９０秒間遠心
脱水した重量から、吸収前重量を引いたもの。 ここで、オムツIは、吸収速度、リウェット量、吸水
量、保水量ともに高い機能性の良好なオムツを代表する
サンプルであり、オムツIIは、吸収速度、リウェット
量、吸水量、保水量ともに低い機能性の劣るオムツを代
表するサンプルである。[Table 1] Note) Absorption rate: The time until 200 ml of physiological saline is injected into the diaper surface and the entire amount of physiological saline is absorbed from the top sheet. Re-wet amount: 200 ml of physiological saline was charged, and after 5 minutes, a filter paper was placed under a load of 35 g / cm 2 on the top sheet surface, and the amount of physiological saline absorbed by the filter paper. Absorbed amount: The whole diaper was immersed in physiological saline for 30 minutes, pulled up, and the weight before water absorption was subtracted from the weight of water drained under a load of 35 g / cm 2 for 20 minutes. (G / p represents the absorbed weight per diaper). Water retention: What was obtained by subtracting the weight before absorption from the weight after centrifugal dehydration at 150 G for 90 seconds after the operation of measuring the absorption. Here, diaper I is a sample that represents a diaper having a high functionality and a high absorption rate, rewet amount, water absorption amount, and water retention amount, and diaper II is a low absorption rate, rewet amount, water absorption amount, and water retention amount. This is a sample that represents a diaper with poor functionality.
【００１６】［装着試験］７人の成人パネラーによっ
て、装着試験を実施した。室温２８℃、湿度６０ＲＨ％
の部屋において、パネラーに前記のオムツIとオムツII
とを装着させ、２５分後に３７℃模擬尿をシリコンチュ
ーブを用いてオムツ股間部に投入し、そのまま２５分間
装着し続けた。各パネラーについて、頭部１３点のα波
を前記の脳波測定方法に従って測定した。各部位のパワ
ースペクトルを（１）オムツ装着後と排尿直後、及び
（２）排尿６分後と排尿１９分後とでｔ検定を行い、１
３点中、有意水準５％未満で有意差が認められた部位数
を表２に示す。[Wearing test] A wearing test was carried out by seven adult panelists. Room temperature 28 ° C, Humidity 60RH%
In the room, the diapers I and diapers II
After 25 minutes, 37 ° C. simulated urine was poured into the diaper crotch using a silicone tube, and was continuously worn for 25 minutes. For each panel, α waves at 13 points on the head were measured in accordance with the above-described electroencephalogram measurement method. The power spectrum of each site was t-tested for (1) after wearing a diaper and immediately after urination, and (2) at 6 minutes after urination and 19 minutes after urination.
Table 2 shows the number of sites where a significant difference was recognized at a significance level of less than 5% among the three points.
【００１７】[0017]
【表２】 [Table 2]
【００１８】表２の結果によると、機能性の良いオムツ
Iと機能性の劣るオムツIIでは、（１）オムツ装着後と
排尿直後でα波のパワースペクトルに有意差のあった点
数は異ならないにもかかわらず、（２）排尿６分後と排
尿１９分後で有意差のあった点数は、機能性の良いオム
ツＩでは顕著に増加している。排尿後の時間の経過と共
にα波の有意差が認められた部位は、中枢神経系の活動
が自由な活動状態にあると言える。オムツＩの装着時に
は、排尿後であっても湿潤感が悪化せず、脳が自由な活
動状態にあるためにα波が制約を受けず自由に変動した
結果、脳波変動に有意差がある部位が多かったと考えら
れる。一方、排尿後の時間の経過と共にα波の有意差が
認められない部位は、中枢神経系の活動が湿潤感の悪化
による同一の刺激を受け続けているために自由な活動状
態にはないと言える。オムツIIの装着時には、脳が自由
な活動状態にないためにα波が制約を受け、自由に変動
できなかった結果、脳波の変動に有意差のある部位が少
なかったと考えられる。According to the results shown in Table 2, the diaper has good functionality.
Diaper II, which is inferior in functionality to I, (1) the power spectrum of the α-wave had a significant difference in the power spectrum after wearing the diaper and immediately after urination, but (2) 6 minutes after urination and urination 19 The score having a significant difference after minutes is significantly increased in the diaper I with good functionality. It can be said that the site where a significant difference in α-waves was observed with the lapse of time after urination was in a state where the activity of the central nervous system was free. When diaper I is worn, even after urination, the sensation of moistness does not worsen, and the brain is in a free active state, so that the α wave fluctuates freely without restriction, resulting in significant differences in EEG fluctuation It is thought that there were many. On the other hand, the area where no significant difference in α-wave is observed over time after urination is not in a free state of activity because the activity of the central nervous system continues to receive the same stimulus due to the deterioration of wet feeling. I can say. When the diaper II was worn, the brain was not in a free state, so the α-wave was restricted and could not fluctuate freely. As a result, it is thought that there were few sites with significant differences in the fluctuations of the electroencephalogram.
【００１９】以上の結果から、オムツ装着環境の変化に
より、脳波に変動のあるオムツの方が快適であると言え
る。また、脳波の変動のあるオムツの方が、尿吸収直後
の不快感から快適な状態への回復性が良いオムツである
と言える。From the above results, it can be said that a diaper having a change in brain waves due to a change in the diaper wearing environment is more comfortable. In addition, it can be said that a diaper having fluctuations in brain waves is a diaper that has a better recovery from discomfort immediately after urine absorption to a comfortable state.
【００２０】この結果から、機能性の良好なオムツにお
いては、脳波の変動が有意に大きいこと、逆に言うと、
排尿後の時間経過による脳波の変動の大小を測定するこ
とにより、オムツの良否を評価、判断できることが分か
った。この結果は、オムツの開発現場あるいは生産現場
において、脳波の変動の大小がオムツの良否の評価指標
となることを示すだけでなく、乳幼児あるいは高齢者な
どの装着感を言語で表現できない着用者自身が、快適で
あり装着感が良いと感じるオムツを選択するための指標
としても応用できることを示す。From these results, it can be seen that, in a diaper having good functionality, the fluctuation of the brain wave is significantly large.
It was found that the quality of the diaper could be evaluated and judged by measuring the magnitude of the fluctuation of the electroencephalogram over time after urination. This result not only indicates that the magnitude of fluctuations in brain waves can be used as an evaluation index for the quality of diapers at diaper development or production sites, but also for wearers who cannot express the feeling of wearing, such as infants or the elderly, in language. However, it shows that it can be applied as an index for selecting a diaper that is comfortable and has a good wearing feeling.
【００２１】この結果を応用すれば、試着者の脳波の変
動の大きいオムツを開発、生産することで、使用者（着
用者）に適切な製品の提供が可能になるという効果を奏
することができる。If this result is applied, it is possible to provide an appropriate product to a user (wearer) by developing and producing a diaper having large fluctuations in the brain wave of a try-on person. .
【００２２】以上、オムツの吸収性能の差と、脳波の変
動との関係を示して本発明を説明したが、吸収性物品の
肌触り、ベタツキ感、締め付け感、動き易さなど、その
他の物性に関しても、同様の手法により脳波を測定する
ことにより、着用者に適切な機能を有する吸収性物品の
選択が可能である。また、脳波の変動として、α波のパ
ワースペクトルに有意差がある部位が多いか少ないかを
指標にして説明したが、パワースペクトルにおけるα波
成分の割合の変動なども脳波の変動の指標にすることが
できる。さらに、オムツを例にとって、脳波の変動との
関係を試験したが、オムツ以外の吸収性物品においても
同様の結果が予測される。The present invention has been described with reference to the relationship between the difference in the absorption performance of diapers and the fluctuation of brain waves. However, other physical properties of the absorbent article, such as touch, stickiness, tightness, and ease of movement, have been discussed. Also, by measuring brain waves by the same method, it is possible to select an absorbent article having a function appropriate for the wearer. In addition, as for the fluctuation of the electroencephalogram, the explanation has been made by using as an index whether there are many or small parts having a significant difference in the power spectrum of the α wave, but the fluctuation of the ratio of the α wave component in the power spectrum is also used as an index of the fluctuation of the electroencephalogram. be able to. Further, the relationship with the fluctuation of the brain wave was tested using a diaper as an example, but similar results are expected for absorbent articles other than the diaper.
【００２３】[0023]
【実施例】以下に、本発明の実施例を示すが、本発明は
これに限定されるものではない。EXAMPLES Examples of the present invention will be described below, but the present invention is not limited to these examples.
【実施例１】実施例１は、オムツの吸収性能と脳波変動
との関係を示す実施例である。 ［サンプル］吸収性能の異なる３種のオムツＩ〜III
（表３参照）を準備した。Example 1 Example 1 is an example showing the relationship between diaper absorption performance and brain wave fluctuation. [Sample] Three kinds of diapers I to III with different absorption performance
(See Table 3) was prepared.
【表３】 [Table 3]
【００２４】［装着試験］オムツＩ〜IIIを用いて、成
人パネラー７人に装着試験を行った。室温２８℃、湿度
６０ＲＨ％の部屋において、上記オムツを装着させ、２
５分後に３７℃模擬尿をシリコンチューブを用いてオム
ツ股間部に投入し、そのまま２５分間装着し続けた。[Wearing test] Using diapers I to III, a wearing test was conducted on seven adult panelists. In a room with a room temperature of 28 ° C and a humidity of 60 RH%,
Five minutes later, 37 ° C. simulated urine was poured into the diaper crotch using a silicone tube, and was kept worn for 25 minutes.
【００２５】［脳波測定と解析］前記の装着試験によ
り、７人のパネラーにより測定した頭部１３点の脳波を
周波数解析し、各部位におけるα波のパワースペクトル
を（１）オムツ装着後と排尿直後、及び（２）排尿６分
後と排尿１９分後とでｔ検定を行い、有意水準５％未満
で有意差が認められた部位数を表４に示す。[Measurement and Analysis of EEG] According to the above-mentioned wearing test, the brain waves at 13 points of the head measured by seven panelists are frequency-analyzed, and the power spectrum of the α-wave at each site is (1) after diaper wearing and urination. Immediately after, and (2) t-test was performed 6 minutes after urination and 19 minutes after urination, and the number of sites where a significant difference was recognized at a significance level of less than 5% is shown in Table 4.
【００２６】[0026]
【表４】 [Table 4]
【００２７】［快適度］排尿後の着用者の快適度を次の
３段階で評価した。 ３：排尿前の装着感と比較して、殆ど変わらない。 ２：排尿前の装着感と比較して、やや不快。 １：排尿前の装着感と比較して、不快。 ７人のパネラーの平均値を表５に示す。[Comfort] The comfort of the wearer after urination was evaluated on the following three levels. 3: Almost no change compared to the feeling of wearing before urination. 2: Slightly uncomfortable compared to the feeling of wearing before urination. 1: Discomfort compared to the feeling of wearing before urination. Table 5 shows the average values of the seven panelists.
【００２８】［皮膚状態の観察］各オムツを介護が必要
な老人の被験者に装着させ、１日平均７枚交換し、５日
間使用した後、肌の状態を目視で観察した。結果を表５
に示す。[Observation of skin condition] Each diaper was worn on an elderly subject in need of nursing care, the average of seven diapers was changed daily, and after 5 days of use, the skin condition was visually observed. Table 5 shows the results
Shown in
【００２９】[0029]
【表５】 [Table 5]
【００３０】表４と表５の結果から、脳波測定部位１３
点において、排尿後の時間の経過によりα波の変動が有
意差を示す点数の変化は、オムツの快適性と関連がある
ことが確認された。すなわち、オムツ装着環境の変化に
よる装着者の脳波が有意差を示す点数が多い方が快適度
および皮膚の状態が良好であることが確認された。From the results of Tables 4 and 5, it is found that the electroencephalogram measurement site 13
In terms of the point, it was confirmed that the change in the score at which the change of the α wave showed a significant difference with the passage of time after urination was related to the comfort of the diaper. In other words, it was confirmed that the greater the score indicating a significant difference in the EEG of the wearer due to the change in the diaper wearing environment, the better the comfort and skin condition.
【００３１】[0031]
【実施例２】オムツ表面の接触冷温感やベタツキ感と脳
波変動との関係を調べた。 ［サンプル］接触冷温感が異なる２種類のオムツIVとＶ
（表６参照）を準備した。Example 2 The relationship between the contact cold / hot feeling and sticky feeling on the diaper surface and the electroencephalographic fluctuation was examined. [Sample] Two types of diapers IV and V with different contact cool and warm feeling
(See Table 6) was prepared.
【表６】 注）接触冷温感：精密迅速熱物性測定装置（カトーテッ
ク社 THERMO LABO IIKES-F7）を用いて最大熱伝達量
（q-max値）を読み取った。この精密迅速熱物性測定装
置は、BT-BOXと呼ばれるBox状の蓄熱金属板上にT-Box銅
板を載せて熱を吸収させた後、Water Boxと呼ばれる内
部に定温の水を流すことで熱容量を無限大にしたBoxの
上に載置した試料への熱伝達量ｑを銅板温度Ｔで微分し
て時間の関数として測定する装置である（繊維機械学会
誌Vol37 No8(1984) pp130-141参照）。最大熱伝達量（q
-max値）は、値が大きくなるほど触れたときのひやっと
した感じが大きい。温度２０℃、湿度６０％ＲＨの環境
で、センサーのBT-BOXの温度を３０℃、Water Boxの温
度を２０℃に設定した。吸収性物品のトップシートを6.
5cm×6.5cmにカットし、10cm×10cmのろ紙（JIS P3801
ろ紙の第２種に相当）を10枚重ねた擬似吸収体の上に重
ね置く。次に生理食塩水を均一に滴下する。生理食塩水
がすべて透過するよう、滴下後1分間ほどそのまま放置
する。３０℃に設定されたT-BOXをWater Boxの上のトッ
プシート上に速やかに移動させ、最大熱伝達量（q-max
値）を読み取った。 吸収速度：８０mlの生理食塩水をオムツ表面に投入し、
トップシートから吸収されるまでの時間。 リウェット：８０mlの生理食塩水を投入して５分後に３
５g/cm2荷重下で、トップシート表面に置いたろ紙に吸
収される生理食塩水の量。[Table 6] Note) Contact cold / hot sensation: The maximum heat transfer amount (q-max value) was read using a precision rapid thermophysical property measuring device (THERMO LABO IIKES-F7, manufactured by Kato Tech). This precision rapid thermophysical property measurement device is designed to absorb heat by placing a T-Box copper plate on a box-shaped heat storage metal plate called BT-BOX, and then flowing constant-temperature water inside a Water Box to heat capacity. Is a device for measuring the amount of heat transfer q to a sample placed on a Box with an infinite value as a function of time by differentiating it with the copper plate temperature T (see Journal of the Textile Machinery Society of Japan Vol37 No8 (1984) pp130-141). ). Maximum heat transfer (q
-max value), the larger the value, the greater the feeling of touch when touched. In an environment of a temperature of 20 ° C. and a humidity of 60% RH, the temperature of the BT-BOX of the sensor was set to 30 ° C., and the temperature of the Water Box was set to 20 ° C. 6.The top sheet of the absorbent article
Cut to 5cm x 6.5cm, filter paper of 10cm x 10cm (JIS P3801
(Corresponding to the second type of filter paper) is placed on the pseudo absorber having 10 sheets. Next, physiological saline is dripped uniformly. Leave for about 1 minute after dropping so that all physiological saline can pass through. The T-BOX set at 30 ° C is quickly moved onto the top sheet above the Water Box, and the maximum heat transfer (q-max
Value). Absorption rate: 80 ml of physiological saline is put on the diaper surface,
Time to be absorbed from the topsheet. Rewet: 5 minutes after adding 80 ml of physiological saline, 3
The amount of physiological saline absorbed by filter paper placed on the top sheet surface under a load of 5 g / cm 2 .
【００３２】［装着試験方法］健康な２０歳代の男性１
名に、室温２５℃、湿度６０ＲＨ％の部屋において、上
記オムツを装着させ、２５分後に３７℃の模擬尿８０ml
をシリコンチューブを用いてオムツ股間部に投入し、そ
のまま２５分間装着し続けた。[Wearing test method] A healthy man in his twenties 1
In the room, the diaper was attached in a room at room temperature of 25 ° C. and humidity of 60 RH%, and after 25 minutes, 80 ml of simulated urine at 37 ° C.
Was put into the diaper crotch using a silicone tube, and was kept attached for 25 minutes.
【００３３】［脳波測定方法］[EEG measurement method]
【００１４】で示した測定解析方法に従い、オムツIVも
しくはオムツＶを装着し、入室直後と、模擬尿を排尿し
てから１０分後（入室３５分後）に、閉眼座位にて10-2
0法のＣ３、Ｃ４、Ｏ１、Ｏ２の４点の脳波を周波数解
析した。４点におけるα波帯域のパワー積分値を平均
し、オムツ装着直後と排尿１０分後で比較して表７に示
した。In accordance with the measurement and analysis method shown in the above, a diaper IV or a diaper V is worn, and immediately after entering the room and 10 minutes after urinating the simulated urine (35 minutes after entering the room), 10-2 in the closed eye sitting position.
The brain waves at four points C3, C4, O1, and O2 in the 0 method were subjected to frequency analysis. The power integrated values in the α-wave band at the four points were averaged, and the results were compared in Table 7 immediately after the diaper was worn and 10 minutes after urination.
【００３４】［官能評価方法］オムツを装着し、模擬尿
を排尿してから１３分後に、下記の３段階で官能評価を
行った。 ３：装着直後と比較して、べたつき感は殆ど変らない。 ２：装着直後と比較して、ややべたつきを感じる。 １：装着直後と比較して、べたつきを感じる。[Sensory Evaluation Method] Thirteen minutes after the diaper was worn and the simulated urine was discharged, the sensory evaluation was performed according to the following three grades. 3: The stickiness is hardly changed as compared with immediately after mounting. 2: Slightly sticky compared to immediately after mounting. 1: Feel sticky compared to immediately after mounting.
【００３５】［結果］脳波と官能評価の結果を表７に示
した。[Results] The results of electroencephalogram and sensory evaluation are shown in Table 7.
【表７】 [Table 7]
【００３６】脳波のうち、α波成分は身体が緊張してい
ないときに多く発生する成分であり、不快刺激による心
的緊張などにより減少することが知られている。装着直
後と排尿１０分後のパワースペクトルを比較すると、オ
ムツＶでは排尿後にα波帯域のパワー積分値が増加して
いるのに対して、オムツIVでは排尿後にα帯域のパワー
積分値が減少していることが認められる。このことは、
オムツIVでは、排尿後に緊張した状態になったことを示
す。オムツIVは、表６に示したとおり、オムツＶと比べ
ると接触冷温感が高く、ひやっと感が大きいものであ
り、且つ、表７の結果からみてベタツキ感においても劣
るものである。このことから、ひやっと感が大きく、官
能評価でベタツキを感じるオムツの方がα波のパワー積
分値の減少が大きいことが分かる。以上から、逆に、排
尿後の時間経過によるα波帯域ののパワー積分値の変動
を指標にすることで、オムツの表面の接触温冷感の違い
やベタツキ感の違いを客観的に評価できることが分かっ
た。さらに、この結果は、排尿後の時間経過によるα波
帯域のパワー積分値の変動を指標とすることにより、着
用者の内面的、心理的要求に合致した吸収性物品の選
択、提供が可能であることを示す。Of the electroencephalograms, the alpha wave component is a component that frequently occurs when the body is not nervous, and is known to decrease due to mental tension due to unpleasant stimulation. Comparing the power spectra immediately after wearing and 10 minutes after urination, the power integrated value in the α-wave band increases after urination in diaper V, whereas the power integrated value in the α band decreases after urination in diaper IV. Is recognized. This means
Diaper IV indicates that the patient became nervous after urination. As shown in Table 6, the diaper IV has a higher contact cold / warm feeling and a relatively large sensation than the diaper V, and is inferior in stickiness as seen from the results in Table 7. From this, it can be seen that the diaper, which has a feeling that is still large and feels sticky in the sensory evaluation, has a larger decrease in the power integrated value of the α wave. From the above, conversely, by using the fluctuation of the power integrated value in the α-wave band with the passage of time after urination as an index, it is possible to objectively evaluate the difference in the contact thermal sensation and the feeling of stickiness on the diaper surface. I understood. Furthermore, this result can be used to select and provide an absorbent article that matches the wearer's internal and psychological requirements by using, as an index, the variation in the power integrated value in the α-wave band over time after urination. Indicates that there is.
【００３７】[0037]
【実施例３】実施例３には、女性用吸収性物品の実施例
を示す。 ［サンプル］性能の異なる２種の生理用ナプキンIおよ
びII（表８参照）を準備した。Embodiment 3 Embodiment 3 shows an embodiment of an absorbent article for women. [Sample] Two types of sanitary napkins I and II having different performances (see Table 8) were prepared.
【表８】 注）表面のすべりにくさ：自動表面試験機（カトーテッ
ク社 ＫＥＳ ＦＢ−４Ｓ）を用いて測定したMIU値
（平均摩擦係数）。値が大きくなるほど表面がすべりに
くくなることを示す。 表面のざらつき：自動表面試験機（カトーテック社 Ｋ
ＥＳ ＦＢ−４Ｓ）を用いて測定したMMD値（摩擦係数
の変動）。値が大きくなるほど表面のざらつきが大きく
なることを示す。 表面粗さ：自動表面試験機（カトーテック社 ＫＥＳ
ＦＢ−４Ｓ）を用いて測定したSMD値（表面厚さの変
動）。値が大きくなるほど表面が粗くなることを示す。 なお、MIU値、MMD値、SMD値は、布、紙、不織布などの
フィルム状の試料の表面特性を表すためによく用いられ
ている指標である（川端季雄著「繊維工学」Vol.33,No.
2(1980)pp136〜142参照）。[Table 8] Note) Hardness of surface slippage: MIU value (average friction coefficient) measured using an automatic surface tester (KES FB-4S, manufactured by Kato Tech). The larger the value, the harder the surface slips. Surface roughness: automatic surface tester (Kato Tech K
MFD value (fluctuation in friction coefficient) measured using ES FB-4S). The higher the value, the greater the surface roughness. Surface roughness: Automatic surface tester (Kato Tech KES)
SMD value (fluctuation in surface thickness) measured using FB-4S). The higher the value, the rougher the surface. The MIU value, MMD value, and SMD value are indices that are often used to represent the surface characteristics of a film-like sample such as cloth, paper, and nonwoven fabric (Kikawa Kawabata, Textile Engineering, Vol. 33, No.
2 (1980) pp136-142).
【００３８】［装着試験］室温２６℃、湿度６０ＲＨ％
の部屋において、パネラー７人にナプキンＩとIIを装着
させた。パネラーはすべて、月経周期が規則的である２
０歳代の女性で、月経開始後７〜１０日目である。パネ
ラーは、入室後、座位にて２０分間安静にした後、ナプ
キンＩもしくはIIを装着し、その後安静状態のまま装着
を続けた。[Wearing test] Room temperature 26 ° C, humidity 60RH%
In the room, seven panelists were fitted with napkins I and II. All panelists have a regular menstrual cycle2
A woman in her 0s, seven to ten days after she has started menstruation. After entering the room, the panelist rested in a sitting position for 20 minutes, then put on napkin I or II, and continued wearing it in a resting state.
【００３９】［脳波の測定方法］[Method of Measuring EEG]
【００１４】に示した脳波の測定、解析方法に従って、
ナプキンＩもしくはIIを装着直後（入室２５分後）と、
装着してから２５分後（入室後４５分）において、閉眼
座位にて10-20法のＯ１、Ｏ２の２点の脳波を周波数解
析した。２点におけるα波帯域のパワー積分値がパワー
スペクトル全体に占める割合を、ナプキン装着直後とナ
プキン装着２５分後の７人の平均値で表９に示した。表
９には、その変動についてｔ検定を行った結果も示し
た。According to the method of measuring and analyzing brain waves shown in
Immediately after wearing napkin I or II (25 minutes after entering the room)
Twenty-five minutes after the wearing (45 minutes after entering the room), the brain waves at the two points O1 and O2 were analyzed by the 10-20 method in the closed eye sitting position. Table 9 shows the ratio of the integrated value of the power of the α-wave band at the two points to the entire power spectrum as an average value of seven persons immediately after wearing the napkin and 25 minutes after wearing the napkin. Table 9 also shows the results of performing a t-test on the change.
【００４０】［官能評価］ナプキンＩ及びナプキンIIを
装着３０分後に、ゴワゴワ感を下記の５段階でゴワゴワ
感を評価した。 １：非常に柔らかく感じる。 ２：柔らかく感じる。 ３：どちらともいえない。 ４：ゴワゴワする。 ５：非常にゴワゴワする。 官能評価の７人の平均値を表９に示した。[Sensory Evaluation] Thirty minutes after the napkin I and the napkin II were attached, the feeling of rough feeling was evaluated according to the following five grades. 1: I feel very soft. 2: Feels soft. 3: Neither can be said. 4: Gogowawa. 5: Very rough. Table 9 shows the average values of the seven persons for the sensory evaluation.
【００４１】[0041]
【表９】 [Table 9]
【００４２】今回測定したＯ１、Ｏ２は、主に眼からの
視覚情報が処理される後頭葉の電位を反映している。ぼ
んやり物を眺めているような時でも、眼は一つの注視点
から別の注視点へと跳び跳びに動いている。注意力、集
中力、疲労、恐れ、無関心などの精神状態によって、そ
の動きの周期や振幅が変化することにより、脳波に影響
が生じる。中でも脳波のうち、α波成分は不快刺激によ
る心的緊張などにより減少することが知られている。表
９の結果によると、ナプキンIIでＯ１の測定部位におい
てα波成分の割合が有意に減少している。このことは、
表面が粗く、滑りにくく、ざらつきがあるナプキンIIの
方がナプキンＩに比べて、不快で緊張した状態になった
ことを示している。また、表９から、ナプキンＩに比べ
てナプキンIIの方がゴワゴワ感があり、脳波の挙動にお
ける緊張感と相関していることも分かる。以上のことか
ら、表面の物理的特性の違いによる吸収性物品の装着感
を、人体内面の中枢神経系であるα波成分の割合の変動
から評価し選択することができることが分かる。そし
て、この脳波のα波成分の変動を指標とする評価方法を
用いれば、着用者の内面の心理的、生理的要求に適切な
吸収性物品を提供することが可能である。O1 and O2 measured this time mainly reflect the potential of the occipital lobe where visual information from the eyes is processed. The eyes are jumping from one point of gaze to another point of gaze, even when looking at a vague object. Changes in the period and amplitude of movement due to mental states such as attention, concentration, fatigue, fear, and indifference affect the electroencephalogram. Among them, it is known that, among brain waves, the α-wave component decreases due to mental tension caused by unpleasant stimulation. According to the results in Table 9, the ratio of the α-wave component at the measurement site of O1 in napkin II was significantly reduced. This means
This shows that napkin II having a rough surface, less slippery, and rough was more uncomfortable and nervous than napkin I. Also, from Table 9, it can be seen that napkin II has a rough feeling compared to napkin I, and is correlated with the nervousness in the behavior of the electroencephalogram. From the above, it can be seen that the feeling of wearing the absorbent article due to the difference in the physical properties of the surface can be evaluated and selected from the change in the ratio of the α-wave component, which is the central nervous system of the human body. Then, by using the evaluation method using the fluctuation of the α-wave component of the brain wave as an index, it is possible to provide an absorbent article suitable for the psychological and physiological requirements of the inner surface of the wearer.
【００４３】[0043]
【発明の効果】本発明により、脳波の変動を指標とすれ
ば、適切な機能を有する吸収性物品の評価が客観的にで
きるので、適切な機能を有する吸収性物品を開発して提
供するのに役立てることができる。また、着用者の脳波
の変動を測定することにより、着用者の快適性に合致し
た吸収性物品を選択購入することが可能になる。According to the present invention, it is possible to objectively evaluate an absorbent article having an appropriate function if the fluctuation of brain waves is used as an index. Therefore, an absorbent article having an appropriate function can be developed and provided. Can help. In addition, by measuring the fluctuation of the brain wave of the wearer, it becomes possible to selectively purchase an absorbent article that matches the comfort of the wearer.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3B029 HB08 4C027 AA03 CC00 FF01 GG03 GG11 GG15 KK00 4C098 AA09 CC40 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3B029 HB08 4C027 AA03 CC00 FF01 GG03 GG11 GG15 KK00 4C098 AA09 CC40
Claims (4)
良否を評価する方法。1. A method for evaluating the quality of an absorbent article using a change in brain waves as an index.
者に合致した吸収性物品を選択する方法。2. A method of selecting an absorptive article that matches a wearer by using a change in a brain wave of the wearer as an index.
２に記載の方法。3. The method according to claim 1, wherein a change in the α-wave is used as an index.
ワースペクトルを、排尿前から排尿後にかけて測定し、
排尿後の時間経過による該パワースペクトルの変動を指
標として用いる請求項１ないし３のいずれかに記載の方
法。4. A power spectrum of a brain wave of a wearer wearing the absorbent article is measured from before urination to after urination,
The method according to any one of claims 1 to 3, wherein a change in the power spectrum over time after urination is used as an index.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001255105A JP2002159460A (en) | 2000-09-01 | 2001-08-24 | Method of evaluating and choosing absorbent item |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000265697 | 2000-09-01 | ||
| JP2000-265697 | 2000-09-01 | ||
| JP2001255105A JP2002159460A (en) | 2000-09-01 | 2001-08-24 | Method of evaluating and choosing absorbent item |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002159460A true JP2002159460A (en) | 2002-06-04 |
Family
ID=26599092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001255105A Pending JP2002159460A (en) | 2000-09-01 | 2001-08-24 | Method of evaluating and choosing absorbent item |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002159460A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004010917A1 (en) * | 2002-07-25 | 2004-02-05 | Uni-Charm Corporation | Top sheet of hygroscopic article, hygrosocopic article using the top sheet, and selection and evaluation method for top sheet |
| JP2004344532A (en) * | 2003-05-23 | 2004-12-09 | Daio Paper Corp | Body fluid absorbent product, method for evaluating the same, and method for producing the same |
| US20210215660A1 (en) * | 2018-05-29 | 2021-07-15 | Kao Corporation | Method for evaluating comfort evoking performance of sheet and comfort evoking sheet |
| CN119846180A (en) * | 2025-03-20 | 2025-04-18 | 北京倍舒特妇幼用品有限公司 | Method for detecting performance of finished product produced by sanitary products |
-
2001
- 2001-08-24 JP JP2001255105A patent/JP2002159460A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004010917A1 (en) * | 2002-07-25 | 2004-02-05 | Uni-Charm Corporation | Top sheet of hygroscopic article, hygrosocopic article using the top sheet, and selection and evaluation method for top sheet |
| JP2004057254A (en) * | 2002-07-25 | 2004-02-26 | Uni Charm Corp | Topsheet of absorbable article |
| KR101069789B1 (en) * | 2002-07-25 | 2011-10-05 | 유니챰 가부시키가이샤 | Top sheet of hygroscopic article hygroscopic article using the top sheet and selection and evaluation method for top sheet |
| JP2004344532A (en) * | 2003-05-23 | 2004-12-09 | Daio Paper Corp | Body fluid absorbent product, method for evaluating the same, and method for producing the same |
| US20210215660A1 (en) * | 2018-05-29 | 2021-07-15 | Kao Corporation | Method for evaluating comfort evoking performance of sheet and comfort evoking sheet |
| CN119846180A (en) * | 2025-03-20 | 2025-04-18 | 北京倍舒特妇幼用品有限公司 | Method for detecting performance of finished product produced by sanitary products |
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