JPH05176953A - Absorptive article - Google Patents
Absorptive articleInfo
- Publication number
- JPH05176953A JPH05176953A JP3347193A JP34719391A JPH05176953A JP H05176953 A JPH05176953 A JP H05176953A JP 3347193 A JP3347193 A JP 3347193A JP 34719391 A JP34719391 A JP 34719391A JP H05176953 A JPH05176953 A JP H05176953A
- Authority
- JP
- Japan
- Prior art keywords
- fabric layer
- woven fabric
- nonwoven fabric
- fibers
- absorbent article
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、生理用ナプキン、使い
捨ておむつ等の吸収性物品、更に詳しくは、経血等の体
液の吸収性物品内への引き込み性、及び吸収された体液
の隠蔽性を向上させた表面材を備えた吸収性物品に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to absorbent articles such as sanitary napkins and disposable diapers, and more specifically, the ability to draw body fluid such as menstrual blood into the absorbent article and the concealment of the absorbed body fluid. The present invention relates to an absorbent article having a surface material having improved heat resistance.
【０００２】[0002]
【従来の技術】従来のこの種の技術としては、例えば、
特開昭６３−２６４０６０号公報及び特開平３−３０７
６４号公報に記載のものがある。2. Description of the Related Art As conventional techniques of this kind, for example,
JP-A-63-264060 and JP-A-3-307
There is one disclosed in Japanese Patent Laid-Open No. 64.
【０００３】前者の公報に記載された技術は、人体から
の滲出液を吸収するために身体に接する側に配置され
る、衛生ナプキンのボディーライナー用の材料に関する
もので、このライナー材は、約１５０００〜約１０００
００平方ミクロンの平均孔サイズで約２５〜約５０％の
開口面積を有し、所定の坪量になるように３デニール以
上の太さの繊維によって形成され、且つこの繊維が約１
〜約６重量％の酸化チタンを含有する、坪量約０．２８
〜０．５オンス／平方ヤードの不織布からなっている。
このような構成によって、低コストで、パッドに吸収さ
れた物質（経血等の体液）をうまくマスキングし、しか
も着用者に不快な感じを与えず、低重量にすることがで
きる。The technique described in the former publication relates to a material for a body liner of a sanitary napkin, which is placed on the side in contact with the body to absorb the exudate from the human body. 15,000 to about 1,000
It has an open area of about 25% to about 50% with an average pore size of 00 square microns, and is formed by fibers having a thickness of 3 denier or more so as to have a predetermined basis weight, and the fibers have about 1
~ About 6 wt% titanium oxide, basis weight about 0.28
It consists of ~ 0.5 ounces per square yard of non-woven fabric.
With such a configuration, the substance (body fluid such as menstrual blood) absorbed in the pad can be masked well at low cost, and the weight can be reduced without giving the wearer an uncomfortable feeling.
【０００４】また、後者の公報に記載された技術は、前
者と同様の材料に関するもので、この衛生材料用フェー
シング不織布は、芯よりも融点が３０℃以上低い鞘を有
する芯鞘構造からなる熱バインダー繊維を主体として構
成され、しかもこの熱バインダー繊維が芯及び鞘それぞ
れに０〜５重量％の酸化チタンを含有し、熱バインダー
繊維中の総二酸化チタンが０．５〜５重量％になってお
り、また、他のものは、この不織布に繊維断面形状をの
みを異にする同様の不織布を積層した二層構造になって
いるものである。このような構成によって、表面の毛羽
立ちを抑え、形態の保持性がよく、肌触り、風合がよ
く、かつ、不織布の強度が高く、液体の戻りを抑制する
と共に、吸収した液が透けて見えない隠蔽効果を発揮さ
せることができる。The technique described in the latter publication relates to the same material as the former, and this facing nonwoven fabric for sanitary materials has a core-sheath structure having a sheath having a melting point lower than that of the core by 30 ° C. or more. It is composed mainly of binder fibers, and the thermal binder fibers contain 0 to 5% by weight of titanium oxide in each of the core and the sheath, and the total titanium dioxide in the thermal binder fibers is 0.5 to 5% by weight. Others have a two-layer structure in which similar nonwoven fabrics having different fiber cross-sectional shapes are laminated on this nonwoven fabric. With such a structure, fluffing on the surface is suppressed, shape retention is good, touch and feel are good, and the strength of the non-woven fabric is high, and liquid return is suppressed and the absorbed liquid cannot be seen through. The concealing effect can be exerted.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、従来の
上記前者の公報に記載されたライナー材のように、単層
の不織布の繊維に二酸化チタンを単に含有させだけで
は、経血色を十分に隠蔽することが難しく、むしろ繊維
の白度が向上し、経血色を目立たせる虞があった。However, as in the conventional liner material described in the former publication, the simple inclusion of titanium dioxide in the fibers of a single-layer nonwoven fabric sufficiently hides the menstrual color. However, the whiteness of the fiber was rather improved, and the menstrual color might be noticeable.
【０００６】また、従来の後者の公報に記載された衛生
材料用フェーシング不織布の場合には、二層構造の不織
布のそれぞれの層に二酸化チタンを含有させて経血色の
隠蔽効果を高めてはいるものの、経血の内部への浸透性
については特に配慮されていなかった。Further, in the case of the facing non-woven fabric for sanitary materials described in the latter publication of the related art, titanium dioxide is contained in each layer of the two-layer non-woven fabric to enhance the concealing effect of menstrual color. However, no particular consideration was given to the permeability of menstrual blood into the interior.
【０００７】従って、本発明の目的は、経血等の体液を
吸収体へ円滑に浸透させることができ、しかも、吸収体
に吸収された経血等の体液を確実に隠蔽することができ
る吸収性物品を提供することにある。Therefore, an object of the present invention is to allow body fluid such as menstrual blood to smoothly permeate into the absorbent body, and yet to surely conceal body fluid such as menstrual blood absorbed in the absorbent body. To provide a sex article.
【０００８】[0008]
【課題を解決するための手段】本発明者らは、表面材に
ついて種々検討した結果、表面材に所定量の酸化チタン
を含有させた上、親水性の勾配を付けることによって上
記目的を達成し得ることを知見した。Means for Solving the Problems As a result of various studies on the surface material, the present inventors have achieved the above object by adding a predetermined amount of titanium oxide to the surface material and imparting a hydrophilicity gradient thereto. I found that I would get it.
【０００９】本発明は、上記知見に基づいてなされたも
ので、（１）肌に接触する第一不織布層と、第一不織布
層の裏面側に積層形成された第二不織布層とからなる表
面材を備えた吸収性物品において、（２）第一不織布層
が第二不織布層よりも親水性が低く、（３）これら両層
全体に０．５〜１０重量％の二酸化チタンが含有され且
つその坪量が１２〜５０ｇ／ｍ2 であることを特徴とす
る吸収性物品を提供するものである。The present invention has been made based on the above findings, and (1) a surface composed of a first non-woven fabric layer in contact with the skin and a second non-woven fabric layer laminated on the back side of the first non-woven fabric layer. In an absorbent article provided with a material, (2) the first non-woven fabric layer is less hydrophilic than the second non-woven fabric layer, and (3) both of these layers contain 0.5 to 10% by weight of titanium dioxide, and its basis weight is to provide an absorbent article which is a 12~50g / m 2.
【００１０】[0010]
【作用】本発明によれば、吸収性物品の使用により、第
一不織布層が経血色等の体液に接すると、この層よりも
親水性の高い第二不織布層へ経血等の体液が吸引され、
吸収性物品内部への経血等の体液の吸引を促進し、内部
へ吸引された経血等の体液は第一不織布層及び第二不織
布層からなる表面材によって確実に隠蔽することができ
る。According to the present invention, when the first non-woven fabric layer comes into contact with body fluid such as menstrual blood due to the use of the absorbent article, the body fluid such as menstrual blood is sucked into the second non-woven fabric layer which is more hydrophilic than this layer. Was
The suction of body fluid such as menstrual blood into the absorbent article can be promoted, and the body fluid such as menstrual blood sucked into the absorbent article can be surely covered by the surface material composed of the first nonwoven fabric layer and the second nonwoven fabric layer.
【００１１】[0011]
【実施例】以下、図１に示す実施例に基づいて本発明を
説明する。尚、図１は本発明の吸収性物品の一実施例に
用いられる表面材の断面構造を示す拡大断面図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiment shown in FIG. In addition, FIG. 1 is an enlarged sectional view showing a sectional structure of a surface material used in one embodiment of the absorbent article of the present invention.
【００１２】本発明の吸収性物品は、従来から公知のよ
うに、肌に接触する表面材と、表面材の反対側に位置す
る裏面材と、これら両者間に介在する吸収体とを備えて
構成されている。そして、本発明の吸収性物品は、表面
材以外の他の材料が従来から公知のものを適宜選択して
用いられたものである。そこで、本発明に用いられる表
面材について以下に詳述する。The absorbent article of the present invention is provided with a surface material which comes into contact with the skin, a back surface material which is located on the opposite side of the surface material, and an absorbent body interposed therebetween, as conventionally known. It is configured. The absorbent article of the present invention is one in which conventionally known materials other than the surface material are appropriately selected and used. Therefore, the surface material used in the present invention will be described in detail below.
【００１３】本発明に用いられる表面材１０は、図１に
示すように、肌に接触する側に位置する第一不織布層１
１と、第一不織布層１１の裏面側に積層された第二不織
布層１２とからなっている。そして、第一不織布層１１
は第二不織布層１２よりも親水性の低い繊維が用いられ
ており、これら両層１１、１２の親水性に差があり、第
一不織布層１１に直接接触した経血等の体液（以下、
「経血」で代表する。）が親水性の低い第一不織布層１
１からそれの高い第二不織布層１２へ速やかに引き込ま
れて経血が内部へ円滑に浸透するようになっている。The surface material 10 used in the present invention is, as shown in FIG. 1, a first non-woven fabric layer 1 located on the side in contact with the skin.
1 and a second nonwoven fabric layer 12 laminated on the back surface side of the first nonwoven fabric layer 11. And the first nonwoven fabric layer 11
Uses a fiber having a lower hydrophilicity than the second non-woven fabric layer 12, and there is a difference in hydrophilicity between the two non-woven fabric layers 11 and 12, and a body fluid such as menstrual blood directly contacting the first non-woven fabric layer 11 (hereinafter,
We represent by "menstrual blood". ) Is the first non-woven fabric layer 1 having low hydrophilicity
The first non-woven fabric layer 12 is rapidly drawn into the second non-woven fabric layer 12 so that menstrual blood smoothly permeates into the inside.
【００１４】また、上記表面材を構成する各不織布層１
１、１２は、それぞれ二酸化チタンを含有して不透明に
なっており、これらの層１１、１２によって被覆された
状態の吸収体（図示せず）の吸収経血の色を隠蔽して目
立たなくしている。これら両層１１、１２全体の二酸化
チタンの含有量は、０．５〜１０重量％であり、より好
ましくは１〜５重量％である。二酸化チタンの含有量
が、０．５重量％未満になると表面材１０の隠蔽効果が
なくなり、また、１０重量％を超えると繊維の紡糸が困
難になる虞がある。Further, each non-woven fabric layer 1 constituting the above surface material.
Nos. 1 and 12 are made opaque by containing titanium dioxide, respectively, so that the color of the absorbed menstrual blood of the absorbent body (not shown) covered with these layers 11 and 12 is hidden and made inconspicuous. There is. The total content of titanium dioxide in both layers 11 and 12 is 0.5 to 10% by weight, and more preferably 1 to 5% by weight. When the content of titanium dioxide is less than 0.5% by weight, the concealing effect of the surface material 10 is lost, and when it exceeds 10% by weight, spinning of fibers may be difficult.
【００１５】更に、上記表面材１０は、全体の坪量が１
２〜５０ｇ／ｍ2 であり、より好ましくは２０〜３０ｇ
／ｍ2 である。そして、表面材１０を構成する各不織布
層１１、１２の坪量は、それぞれ後述のようになってい
る。以下、上記第一不織布層１１及び第二不織布層１２
について更に詳述する。Further, the surface material 10 has an overall basis weight of 1
2 to 50 g / m 2 , more preferably 20 to 30 g
/ M 2 . The basis weights of the non-woven fabric layers 11 and 12 constituting the surface material 10 are as described below. Hereinafter, the first non-woven fabric layer 11 and the second non-woven fabric layer 12
Will be described in more detail.
【００１６】第一不織布層１１は、第二不織布層１２よ
りも太い繊維によって構成されている。即ち、第一不織
布層１１は、太さが１〜６デニールの繊維からなってお
り、より好ましくは１．５〜５デニールの繊維である。
この太さが１デニール未満になると後述の坪量とも相俟
って第一不織布層１１表面での経血の残量が多くなって
好ましくなく、また、６デニールを超えると肌に対する
風合いが悪くなって好ましくない。また、第二不織布層
１２は、太さが０. １〜５デニールの繊維からなってお
り、より好ましくは１〜４デニールの繊維である。この
太さが０. １デニール未満になると不織布を形成するこ
とができなくなり、また、５デニールを超えると第一不
織布層１１からの液の引き込み性が不十分で好ましくな
い。The first nonwoven fabric layer 11 is composed of fibers thicker than the second nonwoven fabric layer 12. That is, the first non-woven fabric layer 11 is made of fibers having a thickness of 1 to 6 denier, and more preferably 1.5 to 5 denier.
When this thickness is less than 1 denier, the residual amount of menstrual blood on the surface of the first nonwoven fabric layer 11 is undesirably large in combination with the later-described basis weight, and when it exceeds 6 denier, the texture on the skin is poor. Is not desirable. The second non-woven fabric layer 12 is composed of fibers having a thickness of 0.1 to 5 denier, more preferably 1 to 4 denier. If the thickness is less than 0.1 denier, it becomes impossible to form a nonwoven fabric, and if it exceeds 5 denier, the drawability of the liquid from the first nonwoven fabric layer 11 is insufficient, which is not preferable.
【００１７】また、第一不織布層１１は、上述のよう
に、親水性が第二不織布層１２よりも低い繊維によって
形成されている。この親水性は、各不織布層１１、１２
を構成する繊維の濡れ性を示す液体の接触角を基準にし
て規定されている。即ち、接触角が大きい程液体に濡れ
難く、親水性が低いことを表わしている。Further, the first non-woven fabric layer 11 is formed of fibers having hydrophilicity lower than that of the second non-woven fabric layer 12, as described above. This hydrophilic property is
Is defined on the basis of the contact angle of the liquid which shows the wettability of the fibers constituting the. That is, the larger the contact angle, the less likely it is to get wet with the liquid, and the lower the hydrophilicity.
【００１８】而して、第一不織布層１１を構成する繊維
の濡れ性は、接触角で２０〜９０°であり、より好まし
くは３０〜６０°である。この接触角が２０°未満にな
ると親水性が大きくなり過ぎて第一不織布層１１表面で
の経血の残量が多くなって好ましくなく、また、９０°
を超えると親水性が小さ過ぎて経血の内部への引き込み
性が低下して第一不織布層１１表面で経血が流れるよう
になって好ましくない。また、第二不織布層１２を構成
する繊維の濡れ性は、接触角で１０〜５０°であり、よ
り好ましくは１５〜３０°である。この接触角が１０°
未満になると濡れ性の制御の上で好ましくなく、また、
５０°を超えると第一不織布層１１からの経血の引き込
み性が不十分で好ましくない。The wettability of the fibers forming the first nonwoven fabric layer 11 is 20 to 90 ° in contact angle, and more preferably 30 to 60 °. If this contact angle is less than 20 °, the hydrophilicity becomes too large, and the residual amount of menstrual blood on the surface of the first nonwoven fabric layer 11 becomes large, which is not preferable, and 90 °
If it exceeds, the hydrophilicity is too small and the drawability of menstrual blood into the interior is lowered, so that menstrual blood flows on the surface of the first nonwoven fabric layer 11, which is not preferable. The wettability of the fibers forming the second non-woven fabric layer 12 is 10 to 50 °, more preferably 15 to 30 ° in terms of contact angle. This contact angle is 10 °
When it is less than 1, it is not preferable in controlling wettability, and
If it exceeds 50 °, the ability to draw menstrual blood from the first nonwoven fabric layer 11 is insufficient, which is not preferable.
【００１９】更に、第一不織布層１１を構成する繊維
は、二酸化チタンを０. ５〜１０重量％含有しており、
より好ましい含有量は、２〜５重量％である。この含有
量が０. ５重量％未満になると繊維の不透明度が低下し
て経血の隠蔽効果がなくなって好ましくなく、また、１
０重量％を超えると繊維の紡糸が難しくなって好ましく
ない。また、第二不織布層１２を構成する繊維は、二酸
化チタンを０. ５〜１０重量％含有しており、より好ま
しい含有量は、２．５〜７重量％である。更に、第二不
織布層１２の繊維の二酸化チタンの含有量は、第一不織
布層１１の繊維のそれよりも多い。第二不織布層１２の
酸化チタンの含有量を第一不織布層１１のそれよりも多
くすることによって、第二不織布層１２の坪量が高く、
その繊維が細いことと相俟って経血の隠蔽効果を一層向
上させることができる。Further, the fibers constituting the first nonwoven fabric layer 11 contain titanium dioxide in an amount of 0.5 to 10% by weight,
A more preferable content is 2 to 5% by weight. When this content is less than 0.5% by weight, the opacity of the fiber is lowered and the effect of concealing menstrual blood is lost, which is not preferable.
If it exceeds 0% by weight, it becomes difficult to spin the fiber, which is not preferable. The fibers forming the second nonwoven fabric layer 12 contain titanium dioxide in an amount of 0.5 to 10% by weight, and a more preferable amount is 2.5 to 7% by weight. Further, the content of titanium dioxide in the fibers of the second non-woven fabric layer 12 is higher than that of the fibers in the first non-woven fabric layer 11. By making the content of titanium oxide of the second nonwoven fabric layer 12 larger than that of the first nonwoven fabric layer 11, the basis weight of the second nonwoven fabric layer 12 is high,
Combined with the fact that the fibers are thin, the effect of concealing menstrual blood can be further improved.
【００２０】更に、上記第一不織布層１１の坪量は５〜
２０ｇ／ｍ2 であり、より好ましい坪量は７〜１５ｇ／
ｍ2 である。この坪量が５ｇ／ｍ2 未満になると第一不
織布層１１を形成することが難しく、強度が低くなって
好ましくなく、また、２０ｇ／ｍ2 を超えると開口率が
低下して第一不織布層１１表面で経血が流れるようにな
って好ましくない。また、第二不織布層１２の坪量は７
〜４５ｇ／ｍ2 であり、より好ましい坪量は１０〜３０
ｇ／ｍ2 である。この坪量が７ｇ／ｍ2 未満になると吸
収体に吸収された経血の隠蔽性が低下すると共に経血の
引き込み性が不十分で好ましくなく、また、４５ｇ／ｍ
2 を超えると経血の保持量が多くなって経血の戻り現象
を生じさせると共に経血の隠蔽性が悪化して好ましくな
い。Further, the basis weight of the first nonwoven fabric layer 11 is 5 to 5.
It is 20 g / m 2 , and more preferable basis weight is 7 to 15 g /
m 2 . If the basis weight is less than 5 g / m 2 , it is difficult to form the first nonwoven fabric layer 11 and the strength is low, which is not preferable, and if it exceeds 20 g / m 2 , the aperture ratio is lowered and the first nonwoven fabric layer is not formed. 11 Menstrual blood flows on the surface, which is not preferable. The basis weight of the second nonwoven fabric layer 12 is 7
~ 45 g / m < 2 >, more preferred basis weight is 10-30.
g / m 2 . If the basis weight is less than 7 g / m 2 , the concealing property of menstrual blood absorbed in the absorbent body is deteriorated and the menstrual blood drawing property is insufficient, which is not preferable.
When it exceeds 2 , the amount of menstrual blood retained increases, causing a phenomenon of menstrual blood return and undesirably hiding the menstrual blood.
【００２１】尚、本実施例における不織布層１１、１２
の形成方法としては、熱接着方式、スパンボンド方式、
スパンレース方式等、従来から公知の方法を適宜選択し
て用いることができ、また、不織布層１１、１２を構成
する繊維には、従来から公知の繊維を適宜選択して用い
ることができる。また、不織布層１１、１２は単に積層
しただけでもよいが、熱接着、ホットメルト接着等で一
体化されることが好ましい。The non-woven fabric layers 11 and 12 in this embodiment are as follows.
As a method of forming, a heat bonding method, a spun bond method,
A conventionally known method such as a spun lace method can be appropriately selected and used, and conventionally known fibers can be appropriately selected and used as the fibers forming the nonwoven fabric layers 11 and 12. Further, the non-woven fabric layers 11 and 12 may be simply laminated, but are preferably integrated by heat bonding, hot melt bonding or the like.
【００２２】次に、本実施例の吸収性物品を更に具体的
に説明する。Next, the absorbent article of this embodiment will be described more specifically.
【実施例】実施例サンプルを比較例サンプルと共に、表
１の不織布組成・物性（繊度、坪量、及びＴｉＯ2 含有
量等）に基づいて、第１層及び第２層を個別にカードウ
エブとして積層後、１４０℃の熱風を通して融着させて
不織布表面材を作成した。尚、不織布表面材には、ポリ
エステル／ポリエチレンからなる芯／鞘型の熱溶融性複
合繊維を用いている。[Examples] Based on the non-woven fabric composition and physical properties shown in Table 1 (fineness, basis weight, TiO 2 content, etc.), the sample of the example and the sample of the comparative example were used as the card web separately for the first layer and the second layer. After laminating, a non-woven fabric surface material was prepared by passing through hot air at 140 ° C. to fuse them. As the nonwoven fabric surface material, a core / sheath type hot-melt composite fiber made of polyester / polyethylene is used.
【００２３】[0023]
【表１】 不織布組成・物性 [Table 1] Nonwoven fabric composition / physical properties
【００２４】以上の如く製造した不織布表面材を花王
（株）製の生理用ナプキン（ロリエ）の不織布表面材の
代わりに使用し、それについての隠蔽性及び表面液流れ
の評価をした。結果を表２に示す。尚、実施例で使用さ
れる評価方法及び測定方法を以下に示す。The non-woven fabric surface material produced as described above was used in place of the non-woven fabric surface material of a sanitary napkin (Laurier) manufactured by Kao Corporation, and the concealing property and the surface liquid flow thereof were evaluated. The results are shown in Table 2. The evaluation methods and measurement methods used in the examples are shown below.
【００２５】不織布及び吸収性物品の評価及び測定方法 （１）接触角 協和界面科学（株）製「ＦＡＣＥ Ｃ
ＯＮＴＡＣＴ−ＡＮＧＬＥ ＭＥＴＥＲ ＣＡ−Ａ型」
を用いて測定した。先ずスライドグラス上に測定する不
織布を載せ、測定器にセットする。セットした試料上の
任意の場所に試験液（イオン交換水）１滴垂らす。試験
液が試料に触れてから１０秒以内に液滴を写真撮影す
る。写真より液滴と測定試料との界面角度を測定し、接
触角とする。 （２）反射率 日本電色工業（株）製「ＮＤ−１０
１ＤＰ型」測色色差計を用いて測定をした。先ず４５７
ｎｍ（緑）の波長の光に対する標準白色板（硫酸バリウ
ム）を反射率が１００％となるように校正をした後、同
波長の光に対する各表面材試料の反射率を測定し、これ
を白色度とした。この白色度が高いほど隠蔽性が優れて
いると判断した。尚、詳細な操作法は「１０１ＤＰ型の
取り扱い説明書」に準拠した。 Evaluation and measurement methods for nonwoven fabrics and absorbent articles (1) Contact angle "FACE C" manufactured by Kyowa Interface Science Co., Ltd.
ONACT-ANGLE METER CA-A type "
Was measured. First, place the non-woven fabric to be measured on the slide glass and set it in the measuring instrument. Drop a drop of the test solution (ion-exchanged water) anywhere on the set sample. The drop is photographed within 10 seconds after the test liquid touches the sample. The contact angle is measured by measuring the interface angle between the droplet and the measurement sample from the photograph. (2) Reflectivity "ND-10" manufactured by Nippon Denshoku Industries Co., Ltd.
The measurement was performed using a "1DP type" colorimetric color difference meter. First, 457
After calibrating a standard white plate (barium sulfate) for light of wavelength nm (green) so that the reflectance is 100%, the reflectance of each surface material sample for light of the same wavelength is measured, and this is white. The degree It was judged that the higher the whiteness, the better the concealing property. The detailed operation method was based on the "101DP type instruction manual".
【００２６】（３）表面液流れ ４５°傾斜させた吸収
性物品の表面において、上方１ｃｍより試験液（馬の脱
繊維血液）を滴下させ、滴下から吸収性物品内部に吸収
された点までの不織布表面上を流れた距離を測定した。
この長さが短いほど、液の引き込み性が良好であるとす
る。３級−落下と同時に即吸収された。２級−表面をや
や流れた後、吸収性物品の内部に全て吸収された。１級
−表面を流れ落ちて、吸収性物品にほとんど吸収されな
かった。 （４）隠蔽度 吸収性物品に３ｇの試験液（馬の脱繊
維血液）を注入し、可動式の人体モデルに装着する。３
分間歩行させた後に人体モデルによりサンプルを脱着
し、吸収表面の隠蔽性を観察した。 ３級−極めて良好。２級−良い。１級−良くない。 （５）液残り量 吸収性物品に３ｇの試験液（馬の脱
繊維血液）を注入し、可動式の人体モデルに装着する。
３分間歩行させた後に人体モデルによりサンプルを脱着
し、吸収表面の不織布中に吸収されている試験液の量を
測定し、液残り量とした。不織布の隠蔽性が高くても、
不織布中に液が残在していれば、経血の色が目立つ。し
たがって、この液残り量が少ないほど隠蔽性が高いと判
断した。(3) Surface liquid flow On the surface of the absorbent article inclined at 45 °, the test liquid (the defibrinated blood of horse) was dropped from 1 cm above and from the drop to the point where it was absorbed inside the absorbent article. The distance flowing over the surface of the non-woven fabric was measured.
The shorter the length, the better the liquid drawability. Grade 3-Immediately absorbed upon falling. Class 2—After flowing slightly over the surface, it was all absorbed inside the absorbent article. Grade 1-flowed down the surface and was hardly absorbed by the absorbent article. (4) Concealment Degree Inject 3 g of test liquid (horse defibrinated blood) into an absorbent article and attach it to a movable human body model. Three
After walking for a minute, the sample was desorbed by a human body model, and the concealing property of the absorbing surface was observed. Grade 3-very good. Level 2-Good. Grade 1-Not good. (5) Liquid remaining amount 3 g of test liquid (horse defibrinated blood) is injected into an absorbent article and attached to a movable human body model.
After walking for 3 minutes, the sample was desorbed by a human body model, and the amount of the test liquid absorbed in the nonwoven fabric on the absorbing surface was measured and used as the liquid remaining amount. Even if the non-woven fabric has high hiding power,
If the liquid remains in the nonwoven fabric, the color of menstrual blood is noticeable. Therefore, it was determined that the smaller the remaining amount of the liquid, the higher the hiding power.
【００２７】[0027]
【表２】 [Table 2]
【００２８】尚、本発明の吸収性物品は、上記実施例に
何等制限されるものではなく、要は、第一不織布層が第
二不織布層よりも親水性が低く、これら両層全体に０.
５〜１０重量％の二酸化チタンが含有され且つその坪量
が１２〜５０ｇ／ｍ2 であれば、全て本発明に包含され
る。Incidentally, the absorbent article of the present invention is not limited to the above-mentioned embodiment in any way. The point is that the first non-woven fabric layer is lower in hydrophilicity than the second non-woven fabric layer, and both of these layers are 0 .
It is included in the present invention as long as it contains 5 to 10% by weight of titanium dioxide and has a basis weight of 12 to 50 g / m 2 .
【００２９】更に詳しくは、本発明の吸収性物品は、第
一不織布層は、太さが１〜６デニールで濡れ性が接触角
で２０〜９０°の繊維からなり、且つ、上記繊維が二酸
化チタンを０. ５〜１０重量％含有すると共にその坪量
が５〜２０ｇ／ｍ2 であり、ま た、第二不織布層は、
太さが０．１〜５デニールで濡れ性が接触角で１０〜５
０ °の繊維からなり且つ二酸化チタンを０. ５〜１０
重量％含有すると共にその坪量が１０〜４５ｇ／ｍ2 で
あり、且つ、第一不織布層の酸化チタン含有量が第二不
織布層のそれよりも小さいものであればよく、このよう
に構成された吸収性物品は全て本発明に包含される。More specifically, in the absorbent article of the present invention, the first non-woven fabric layer is composed of fibers having a thickness of 1 to 6 denier and a wettability of 20 to 90 ° at a contact angle, and the fibers are carbon dioxide. It contains 0.5 to 10% by weight of titanium and has a basis weight of 5 to 20 g / m 2 , and the second nonwoven fabric layer is
Thickness is 0.1-5 denier and wettability is 10-5 at contact angle
Consisting of 0 ° fibers and titanium dioxide 0.5 to 10
It is sufficient if the content is 10% by weight and the basis weight is 10 to 45 g / m 2 and the titanium oxide content of the first non-woven fabric layer is smaller than that of the second non-woven fabric layer. All absorbent articles are included in the present invention.
【００３０】[0030]
【発明の効果】本発明の吸収性物品は、経血等の体液を
吸収体へ円滑に吸収させることができ、しかも、吸収体
に吸収された経血等の体液を確実に隠蔽することができ
るものである。INDUSTRIAL APPLICABILITY The absorbent article of the present invention can smoothly absorb body fluids such as menstrual blood into the absorbent body, and moreover can surely conceal body fluids such as menstrual blood absorbed in the absorbent body. It is possible.
【図１】本発明の吸収性物品の一実施例に用いられる表
面材の断面構造を示す拡大断面図である。FIG. 1 is an enlarged sectional view showing a sectional structure of a surface material used in an embodiment of an absorbent article of the present invention.
１０ 吸収性物品 １１ 第一不織布層 １２ 第二不織布層 10 Absorbent article 11 First non-woven fabric layer 12 Second non-woven fabric layer
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 7603−4Ｃ ３３０ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location 7603-4C 330
Claims (2)
一不織布層の裏面側に積層形成された第二不織布層とか
らなる表面材を備えた吸収性物品において、 （２）第一不織布層が第二不織布層よりも親水性が低
く、 （３）これら両層全体に０．５〜１０重量％の二酸化チ
タンが含有され且つその坪量が１２〜５０ｇ／ｍ2 であ
る ことを特徴とする吸収性物品。(1) An absorbent article comprising a surface material comprising a first non-woven fabric layer in contact with skin and a second non-woven fabric layer laminated on the back surface side of the first non-woven fabric layer, (2) The first non-woven fabric layer has a lower hydrophilicity than the second non-woven fabric layer, and (3) 0.5-10 wt% titanium dioxide is contained in both layers, and the basis weight is 12-50 g / m 2 . An absorbent article characterized by the above.
ニールで濡れ性が接触角で２０〜９０°の繊維からな
り、且つ、上記繊維が二酸化チタンを０. ５〜１０重量
％含有すると共にその坪量が５〜２０ｇ／ｍ2 であり、
また、 （２）第二不織布層は、太さが０. １〜５デニールで濡
れ性が接触角で１０〜５０°の繊維からなり且つ二酸化
チタンを０. ５〜１０重量％含有すると共にその坪量が
７〜４５ｇ／ｍ2 であり、更に、 （３）第一不織布層の酸化チタン含有量が第二不織布層
のそれよりも小さい、請求項１記載の吸収性物品。(1) The first non-woven fabric layer comprises fibers having a thickness of 1 to 6 denier and a wettability of 20 to 90 ° at a contact angle, and the fibers contain titanium dioxide in an amount of 0.5 to 10. And the basis weight is from 5 to 20 g / m 2 ,
(2) The second non-woven fabric layer is made of fibers having a thickness of 0.1 to 5 denier and a wettability of 10 to 50 ° at a contact angle, and contains titanium dioxide in an amount of 0.5 to 10% by weight. The absorbent article according to claim 1, wherein the basis weight is 7 to 45 g / m 2 , and (3) the titanium oxide content of the first nonwoven fabric layer is smaller than that of the second nonwoven fabric layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34719391A JP3380568B2 (en) | 1991-12-27 | 1991-12-27 | Absorbent articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34719391A JP3380568B2 (en) | 1991-12-27 | 1991-12-27 | Absorbent articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05176953A true JPH05176953A (en) | 1993-07-20 |
| JP3380568B2 JP3380568B2 (en) | 2003-02-24 |
Family
ID=18388555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34719391A Expired - Fee Related JP3380568B2 (en) | 1991-12-27 | 1991-12-27 | Absorbent articles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3380568B2 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07184958A (en) * | 1993-11-24 | 1995-07-25 | Paper Converting Mach Co Inc | Method and device to manufacture disposable diaper with waist band |
| GB2288412A (en) * | 1994-04-15 | 1995-10-18 | Kao Corp | Nonwoven fabric,process for producing the same and absorbent article using the same |
| JPH1094558A (en) * | 1996-09-20 | 1998-04-14 | Kao Corp | Absorptive article |
| US6365795B1 (en) | 1999-08-27 | 2002-04-02 | Uni-Charm Corporation | Absorptive article containing titanium oxide |
| US6673207B1 (en) * | 2000-06-16 | 2004-01-06 | Ein Kohsan Co., Ltd. | Laminated photocatalytic pulp paper and process for making thereof |
| WO2004022831A1 (en) * | 2002-09-09 | 2004-03-18 | Kao Corporation | Nonwoven fabric |
| JP2008161278A (en) * | 2006-12-27 | 2008-07-17 | Uni Charm Corp | Absorbent article |
| JP2009240588A (en) * | 2008-03-31 | 2009-10-22 | Daio Paper Corp | Absorbent article |
| JP2009247409A (en) * | 2008-04-01 | 2009-10-29 | Kao Corp | Absorbent article |
| JP2016067897A (en) * | 2014-09-30 | 2016-05-09 | 花王株式会社 | Absorbent article |
| WO2017088114A1 (en) * | 2015-11-25 | 2017-06-01 | The Procter & Gamble Company | Nonwoven and absorbent articles having the same |
| KR20200086692A (en) * | 2017-11-08 | 2020-07-17 | 테졸 에스.알.엘. | METHOD AND APPARATUS OF MANUFACTURING A MULTILAYER ABSORBING ELEMENT FOR SANITARY ARTICLES |
| WO2021172051A1 (en) * | 2020-02-28 | 2021-09-02 | 東レ株式会社 | Layered nonwoven fabric and sanitary material |
-
1991
- 1991-12-27 JP JP34719391A patent/JP3380568B2/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07184958A (en) * | 1993-11-24 | 1995-07-25 | Paper Converting Mach Co Inc | Method and device to manufacture disposable diaper with waist band |
| GB2288412A (en) * | 1994-04-15 | 1995-10-18 | Kao Corp | Nonwoven fabric,process for producing the same and absorbent article using the same |
| GB2288412B (en) * | 1994-04-15 | 1998-03-25 | Kao Corp | Nonwoven fabric,process for producing the same,and absorbant article using the same |
| JPH1094558A (en) * | 1996-09-20 | 1998-04-14 | Kao Corp | Absorptive article |
| US6365795B1 (en) | 1999-08-27 | 2002-04-02 | Uni-Charm Corporation | Absorptive article containing titanium oxide |
| US6673207B1 (en) * | 2000-06-16 | 2004-01-06 | Ein Kohsan Co., Ltd. | Laminated photocatalytic pulp paper and process for making thereof |
| WO2004022831A1 (en) * | 2002-09-09 | 2004-03-18 | Kao Corporation | Nonwoven fabric |
| CN100392165C (en) * | 2002-09-09 | 2008-06-04 | 花王株式会社 | Nonwoven fabric |
| JP2008161278A (en) * | 2006-12-27 | 2008-07-17 | Uni Charm Corp | Absorbent article |
| JP2009240588A (en) * | 2008-03-31 | 2009-10-22 | Daio Paper Corp | Absorbent article |
| JP2009247409A (en) * | 2008-04-01 | 2009-10-29 | Kao Corp | Absorbent article |
| JP2016067897A (en) * | 2014-09-30 | 2016-05-09 | 花王株式会社 | Absorbent article |
| WO2017088114A1 (en) * | 2015-11-25 | 2017-06-01 | The Procter & Gamble Company | Nonwoven and absorbent articles having the same |
| CN108349222A (en) * | 2015-11-25 | 2018-07-31 | 宝洁公司 | Non-woven material and absorbent article with non-woven material |
| CN108349222B (en) * | 2015-11-25 | 2021-09-21 | 宝洁公司 | Nonwoven material and absorbent article having nonwoven material |
| KR20200086692A (en) * | 2017-11-08 | 2020-07-17 | 테졸 에스.알.엘. | METHOD AND APPARATUS OF MANUFACTURING A MULTILAYER ABSORBING ELEMENT FOR SANITARY ARTICLES |
| JP2021502148A (en) * | 2017-11-08 | 2021-01-28 | テクソール ソチエタ レスポンサビリタ リミタタＴｅｘｏｌ Ｓ．Ｒ．Ｌ． | Manufacturing methods and equipment for multi-layer absorbents for hygiene products |
| WO2021172051A1 (en) * | 2020-02-28 | 2021-09-02 | 東レ株式会社 | Layered nonwoven fabric and sanitary material |
| CN115151689A (en) * | 2020-02-28 | 2022-10-04 | 东丽株式会社 | Laminated nonwoven fabric and sanitary material |
| CN115151689B (en) * | 2020-02-28 | 2024-03-12 | 东丽株式会社 | Laminated nonwoven fabric and sanitary material |
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| Publication number | Publication date |
|---|---|
| JP3380568B2 (en) | 2003-02-24 |
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