JP3831819B2 - Body fluid absorbing pad - Google Patents

Description

【００１９】
前記ニトラジンイエローは、ｐＨ４で黄色に変色し、ｐＨ５で黄緑色に変色し、ｐＨ６で青色に変色するものであり、人体に対しての安全性も非常に優れている。
【００２０】
また、色素２をインク化するには、カチオン基を有するヒドロゲル粒子に色素２を吸着させ、必要に応じ表面を透湿、透水性皮膜で覆われた構成となる組成物とすればよい。この組成物には、体液吸収用当て材に固着させるための適当なバインダーを併用してもよい。なお、前記ヒドロゲル粒子としては、アクリル酸・アクリルアミド・メタクリル酸・Ｎ，Ｎ−ジメチルアミノエチル共重合物のグリセロールグリシジルエーテルによる部分架橋物で代表されるような組成物を用い、粒子径を０．０１〜５０μｍとするのが好ましい。
【００２１】
このインク化した色素２を塗布あるいは印刷することにより、色素２がおりもの等の体液により湿潤した場合にもブリード（色素が滲み出す現象）が起こらず、色素２を耐久性に優れた状態として本体部１に付着させておくことができる。
【００２２】
なお、色素２をニトラジンイエローとした場合には、表１、表２に示したように、他の色素、例えばメチルレッド、ブロモチモルブルー、ブロモクレゾールグリーンと比較して、ｐＨ４〜６域で鮮明な変色をすると共に、加温加湿下（４０℃、７５％）、光曝露下での経時変化のし難いものとなる。
【００２３】
【表１】

【００２４】
【表２】

【００２５】
【発明の効果】
この発明の体液吸収用当て材は、以上に述べたように構成されており、ｐＨにより変色する色素２がおりもの等の体液で濡れると変色し、この変色具合を体液吸収用当て材の表面から確認することができるので、健康状態、体調等を簡単にチェックするためのバロメーターとして使用できるようになった。
【００２６】
さらに、ｐＨにより変色する色素２が体液吸収用当て材の表面から鮮明に見えるようになると共に、少ないおりものでも色素の付着面に到達し易くなるので、色素２の変色具合がはっきり見えるものとなり、健康状態、体調等をチェックし易いものとなった。しかも、色素２の付着面からの溶出を防ぐことができるので、安全性の面で安心感が得られるものとなった。さらに、表面材１ａと吸収体１ｂをエンボス加工して貼り合わせたものや、表面材１ａと吸収体１ｂを貼り合わせてさらにメッシュ状に加工したものでは、着用時の密着感が軽減され、ムレ感が解消される。
【００２７】
また、この発明の体液吸収用当て材は、ｐＨにより変色する色素２をニトラジンイエローとした場合には、体液のｐＨにより、黄、黄緑、または青に変色するので、健康状態、体調等をより明らかにチェックできるようになった。
【図面の簡単な説明】
【図１】この発明の体液吸収用当て材の第一実施例の一部破断斜視図である。
【図２】この発明の体液吸収用当て材の図１中のＡ−Ａ線による拡大断面図である。
【図３】この発明の体液吸収用当て材の第二実施例の拡大断面図である。
【図４】この発明の体液吸収用当て材の第三実施例の拡大断面図である。
【図５】この発明の体液吸収用当て材の第四実施例の拡大断面図である。
【符号の説明】
１ 本体部
１ａ 表面材
１ｂ 吸収体
１ｃ 防水層
２ 色素
３ 凹部[0001]
[Industrial application fields]
The present invention relates to a bodily fluid absorbing pad material which is laid on the inner surface of underwear such as panties and absorbs bodily fluids such as cages.
[0002]
[Prior art]
Conventionally, a so-called cage sheet is commercially available as this kind of bodily fluid absorbing material. The sheet for vaginal discharge is intended to prevent contamination of the undergarment by absorbing what is laid on the inner surface of the undergarment other than menstruation days. However, this cage sheet merely prevents the undergarment from being soiled, and has no other function.
[0003]
By the way, the pH of the cage fluctuates due to physiological periods, pathological conditions such as Trichomonas, menopause, water breakage during pregnancy, etc., and sometimes the health status, physical condition, etc. can be checked by measuring the pH of the cage. In addition, doctors sometimes measure the pH of cages when diagnosing a patient's morbid state.In such cases, doctors take samples with cotton swabs and place them in contact with pH test paper. ing.
[0004]
[Problems to be solved by the invention]
However, it is very troublesome to measure the pH of bodily fluids such as cages on a daily basis, and there are still many problems in measuring the pH value as a barometer for easily checking the health condition, physical condition, etc. Was.
[0005]
In addition, when a doctor measures the pH of a patient's body fluid, there is a problem that an internal examination is required at the time of collection and the measurement involves difficulty.
[0006]
Therefore, the present invention provides a bodily fluid absorbing patch having a function of measuring the pH of body fluids such as urine, i.e., when a pigment that changes color depending on pH changes color when wet with body fluids such as sag, and confirms the color change. The purpose of the present invention is to provide a bodily fluid absorbing patch capable of easily checking health condition, physical condition and the like.
[0007]
[Means for Solving the Problems]
Therefore, the bodily fluid absorbing contact material of the present invention comprises the main body portion 1 including at least a surface material 1a, an absorber 1b, and a waterproof layer 1c, and the surface material 1a is made of a transparent material, and the absorber 1b The pigment 2 that changes color due to pH is attached to the surface, and the surface material 1a and the absorber 1b are bonded together.
[0008]
Further, the bodily fluid absorbing contact material of the present invention comprises at least the surface material 1a, the absorber 1b, and the waterproof layer 1c, and the dye 2 that changes color depending on pH is attached to the surface of the absorber 1b. The absorber 1b and the surface material 1a may be embossed and bonded together. At that time, the tip of the embossed recess 3 may be opened and meshed.
[0009]
In the bodily fluid absorbing patch of the present invention, the dye 2 is preferably nitrazine yellow.
[0010]
[Action]
The bodily fluid absorbing patch of the present invention has the above-described configuration, so that the dye 2 that changes color depending on the pH can be clearly seen from the surface of the bodily fluid absorbing patch, and even a small amount can easily reach the dye adhesion surface. Become. Moreover, the elution of the pigment from the adhesion surface can be prevented by bonding the surface material 1a and the absorber 1b together. Furthermore, in the case where the surface material 1a and the absorbent body 1b are embossed and bonded together, or in the case where the surface material 1a and the absorbent body 1b are bonded together and processed into a mesh shape, the feeling of adhesion when worn is reduced.
[0011]
In the body fluid absorbing patch of the present invention, when the pigment 2 that changes color depending on pH is nitrazine yellow, the color changes to yellow, yellowish green, or blue depending on the pH of the body fluid.
[0012]
【Example】
Hereinafter, the configuration of the bodily fluid absorbing pad according to the present invention will be described in detail based on the drawings shown as an embodiment.
[0013]
As shown in FIGS. 1 and 2, in the bodily fluid absorbing contact material of the present invention, a main body 1 is composed of a surface material 1 a, an absorber 1 b, and a waterproof layer 1 c. The surface material 1a is made of a transparent material, and a dye 2 that changes color depending on pH is attached to the surface of the absorber 1b. And the surface material 1a and the absorber 1b shall be bonded together. In addition, although not shown in figure, the body fluid absorption patch of this invention is packaged with an appropriate packaging material.
[0014]
In FIG. 3, the surface material 1a and the absorber 1b are embossed and bonded together. Further, in the structure shown in FIG. 4, the surface material 1a and the absorbent body 1b are embossed and bonded together, and the tip of the embossed recess 3 is opened to form a so-called mesh shape. Moreover, what was shown in FIG. 5 shall be the thing which processed the surface material 1a into the synthetic fiber nonwoven fabric, the absorber 1b as the natural fiber nonwoven fabric, bonded both together, and mesh-shaped, and the waterproof layer 1c as a polyethylene backsheet Yes. And what was shown to FIGS. 3-5 has provided the absorber 1d used as the synthetic fiber nonwoven fabric between the said absorber 1b and the waterproof layer 1c.
[0015]
If the surface material 1a and the absorber 1b are bonded together, they are always in contact with each other, so that the surface can be clearly seen from the surface of the bodily fluid absorbing material, and the surface to which the dye is attached even with a small amount. It becomes easy to reach. Moreover, the elution of the pigment from the adhesion surface can be prevented by bonding the surface material 1a and the absorber 1b together. Furthermore, in the case where the surface material 1a and the absorbent body 1b are embossed and bonded together, or in the case where the surface material 1a and the absorbent body 1b are bonded together and further processed into a mesh shape, a plurality of irregularities and openings are formed. Therefore, a feeling of adhesion at the time of wearing is reduced.
[0016]
A dye 2 that changes color depending on pH is attached to the surface of the absorber 1b of the main body 1. In order to attach the dye 2, it is preferable to attach the dye 2 in an ink.
[0017]
Furthermore, the pigment | dye 2 used in the bodily fluid absorption base material of this invention uses what changes color in pH 4-5, 5-6 area. In general, this is often pathological when the pH of the cage is 5 or more, and is usually normal when the pH of the cage is 5 or less. Therefore, the dye 2 that changes color in the above pH range is used. Is preferred. In addition, when water breakage occurs in a person with urinary incontinence or a pregnant woman, the pH becomes 5 or more. In such a case, it is preferable to use the dye 2. In Examples, Nitrazine Yellow [also known as 2- (2,4-dinitrophenylazo) -1-naphthol-3,6-disulfonic acid disodium] represented by the following chemical formula is adopted as the dye 2 described above. did.
[0018]
[Chemical 1]

[0019]
The nitrazine yellow changes to yellow at pH 4, changes to yellow-green at pH 5, and changes to blue at pH 6, and is very excellent in safety to the human body.
[0020]
In order to convert the dye 2 into an ink, the dye 2 may be adsorbed on hydrogel particles having a cationic group, and the composition may have a structure in which the surface is covered with a moisture-permeable and water-permeable film as necessary. This composition may be used in combination with an appropriate binder for fixing to the bodily fluid absorbing material. As the hydrogel particles, a composition represented by a partially crosslinked product of acrylic acid / acrylamide / methacrylic acid / N, N-dimethylaminoethyl copolymer with glycerol glycidyl ether is used, and the particle size is set to 0.00. It is preferable to set it as 01-50 micrometers.
[0021]
By applying or printing this dyed dye 2, no bleeding occurs even when the dye 2 is moistened by body fluids such as a scent, and the dye 2 is in an excellent durability state. It can be adhered to the main body 1.
[0022]
When the dye 2 is nitrazine yellow, as shown in Tables 1 and 2, the pH is 4 to 6 in comparison with other dyes such as methyl red, bromothymol blue and bromocresol green. In addition to being vividly discolored, it is difficult to change with time under heating and humidification (40 ° C., 75%) and exposure to light.
[0023]
[Table 1]

[0024]
[Table 2]

[0025]
【The invention's effect】
The bodily fluid absorbing contact material of the present invention is configured as described above, and the dye 2 that changes color depending on the pH changes color when wet with body fluids such as scents, and this discoloration is expressed on the surface of the bodily fluid absorbing contact material. Since it can be confirmed from, it can be used as a barometer to easily check the health condition, physical condition, etc.
[0026]
In addition, the dye 2 that changes color due to pH can be clearly seen from the surface of the body fluid absorbing material, and even a small amount of the dye can easily reach the surface to which the dye is attached, so that the color change of the dye 2 can be clearly seen. It became easy to check health condition, physical condition, etc. Moreover, since elution from the adhesion surface of the dye 2 can be prevented, a sense of security can be obtained in terms of safety. Furthermore, in the case where the surface material 1a and the absorbent body 1b are embossed and bonded together, or the surface material 1a and the absorbent body 1b are bonded together and further processed into a mesh shape, the feeling of adhesion at the time of wearing is reduced. A feeling is canceled.
[0027]
The body fluid absorbing patch of the present invention changes to yellow, yellowish green, or blue depending on the pH of the body fluid when the dye 2 that changes color depending on the pH is nitrazine yellow. Can be checked more clearly.
[Brief description of the drawings]
FIG. 1 is a partially broken perspective view of a first embodiment of a bodily fluid absorbing pad according to the present invention.
FIG. 2 is an enlarged cross-sectional view of the bodily fluid absorbing pad according to the present invention, taken along line AA in FIG.
FIG. 3 is an enlarged sectional view of a second embodiment of the bodily fluid absorbing pad according to the present invention.
FIG. 4 is an enlarged cross-sectional view of a third embodiment of the bodily fluid absorbing pad according to the present invention.
FIG. 5 is an enlarged sectional view of a fourth embodiment of the bodily fluid absorbing pad according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main-body part 1a Surface material 1b Absorber 1c Waterproofing layer 2 Dye 3 Concave part

Claims (3)

The main body (1) is composed of at least a surface material (1a), an absorber (1b), and a waterproof layer (1c), and the surface material (1a) is made a transparent material, and the absorber (1b) A bodily fluid absorbing contact material characterized in that nitrazine yellow is attached to the surface as a pigment (2) that changes color depending on pH, and the surface material (1a) and the absorbent body (1b) are bonded together. The main body (1) is composed of at least a surface material (1a), an absorber (1b), and a waterproof layer (1c), and nitrazine yellow is used as a pigment (2) that changes color on the surface of the absorber (1b) depending on pH. A bodily fluid-absorbing contact material characterized in that the absorbent body (1b) and the surface material (1a) are bonded together after being adhered. The main body (1) is composed of at least a surface material (1a), an absorber (1b), and a waterproof layer (1c), and nitrazine yellow is used as a pigment (2) that changes color on the surface of the absorber (1b) depending on pH. A body fluid-absorbing contact material characterized in that the absorbent body (1b) and the surface material (1a) are attached to each other by embossing and bonded, and the tip of the embossed recess (3) is opened to form a mesh.

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