JPH0788128A - Pad material for body fluid absorption - Google Patents

Abstract

PURPOSE:To make the pas material usable as a barometer for easily checking a health condition, physical condition, etc., as dyestuff discoloring with pH discolors when wet with the body fluid, such as a discharge from the womb and the degree of discoloration of visible from the front surface or rear surface of the pad material for body fluid absorption. CONSTITUTION:This pad material is formed by sticking the dyestuff 2 discoloring with pH to a body 1. More preferably, the pad material is formed by sticking the dyestuff 2 discoloring with pH in the form of ink to the body part 1. Further, the body part 1 is composed of at least a surface material 1a, an absorbent 1b and a waterproof layer 1c. This surface material 1a is formed of a blank material having a see-through property and may be formed by sticking the dyestuff 2 discoloring with pH to the surface of the absorbent 1b. An equally good alternative is to form the body part of at least the surface material 1a, the absorbent 1b and the waterproof layer 1c, to form the waterproof layer 1c of the blank material having the see-through property and to stick the dyestuff 2 discoloring with pH to the inside surface of the waterproof layer 1c.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a body fluid-absorbing pad which is laid on the inner surface of underwear such as panties so as to absorb body fluid such as a veil.

[0002]

2. Description of the Related Art Conventionally, this kind of bodily fluid absorption pad has been
A so-called so-called sheet for a veil is commercially available. The sheet for a garment is intended to absorb the garment laid on the inner surface of the underwear other than during the menstrual day and prevent the underwear from being soiled. However, this veiling sheet only prevents the underwear from becoming dirty and has no other function.

By the way, the pH of drips is
It may change depending on the pathological condition such as Trichomonas, menopause, and rupture of water during pregnancy. Therefore, it may be possible to check the health condition and physical condition by measuring the pH of the vaginal discharge. Also,
In order to see the pathological condition of the patient, the doctor may measure the pH of the vaginal discharge, but in such a case, the doctor collects the vaginal discharge with a cotton swab and contacts it with a pH test paper for measurement. .

[0004]

However, it is very troublesome to measure the pH of body fluids such as sacrifice on a daily basis, and the pH value is measured as a barometer for easily checking the health condition and physical condition. There were still many problems to be solved.

Further, when the doctor measures the pH of the body fluid of the patient, there is a problem that an internal examination is required at the time of collection and the measurement is difficult.

[0006] Therefore, the present invention is intended to solve the above problems by providing a body fluid absorbing pad having a pH measuring function for body fluid such as a vaginal discharge.

[0007]

Therefore, in the body fluid absorbing pad of the present invention, the main body 1 is provided with the pigment 2 which changes its color depending on the pH. It is preferable that the main body 1 is formed by adhering the dye 2 that changes color depending on pH as an ink.

Furthermore, the pad for absorbing body fluid of the present invention is
The main body 1 is composed of at least the surface material 1a, the absorber 1b, and the waterproof layer 1c, and the surface material 1a is made of a transparent material, and the pigment 2 that changes color depending on the pH is attached to the surface of the absorber 1b. It may be one.

In the body fluid absorbing pad of the present invention, the main body 1 is composed of at least the surface material 1a, the absorbent body 1b, and the waterproof layer 1c, and the waterproof layer 1c is made of a transparent material. The pigment 2 that changes color depending on pH may be attached to the back surface of the body 1b or the inner surface of the waterproof layer 1c.

Furthermore, the body fluid absorbing pad of the present invention is such that the body portion 1 is coated or printed with a dye 2 that changes color depending on pH, which is then applied or printed. Good.

Moreover, the body fluid absorbing pad of the present invention is
The dye 2 is preferably Nitrazine Yellow.
The Nitrazine yellow dye 2 may be applied or printed in a weakly acidic state.

[0012]

Since the body fluid absorbing pad of the present invention has the above-mentioned constitution, when the pigment 2 which is discolored by pH is wetted by body fluid such as scent, it reacts and discolors. The degree of discoloration of the pigment 2 can be seen from the front surface or the back surface of the body fluid absorbing pad.

Furthermore, if the portion to which the dye 2 is attached is the absorber 1b or the waterproof layer 1c, the dye 2 will not directly contact the user's skin during use.

If the cationic dye is applied or printed after the dye 2 is made into ink and applied or printed, it is possible to effectively prevent the dye from falling off the applied or printed surface.

Furthermore, a dye 2 which 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.

Moreover, if nitrazine yellow is prepared to be weakly acidic, it will be applied or printed in a state where it changes color to yellow. If is abnormal, the color changes from yellow to blue.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a body fluid absorbent pad according to the present invention will be described in detail below with reference to the drawings shown as an embodiment.

As shown in FIGS. 1 and 2, the body fluid absorbing pad of the present invention comprises a surface material 1a, an absorbent body 1b, and a waterproof layer 1.
The main body 1 is composed of c, and an appropriate packaging material (not shown)
Are packaged by. In this embodiment, the surface material 1a is a synthetic fiber non-woven fabric, the absorbent body 1b is a natural fiber non-woven fabric, and the waterproof layer 1c is a polyethylene back sheet. However, an appropriate material is selected as necessary. As shown in FIG. 3, it is assumed that the surface material 1a and the absorbent body 1b are laminated and mesh-processed, and the absorbent body 1d made of a synthetic fiber nonwoven fabric is provided between the absorbent body 1b and the waterproof layer 1c. There is.

On the surface of the absorber 1b of the main body 1, a pigment 2 that changes color depending on pH is attached. In order to attach the dye 2, it is preferable that the dye 2 is made into an ink and then attached.

When the surface material 1a is made of a transparent material such as a mesh sheet, the portion to which the dye 2 is attached can be the surface of the absorber 1b or the outer or inner surface of the surface material 1a. When the waterproof layer 1c is a transparent or translucent transparent material, it can be the back surface of the absorbent body 1b or the inner surface of the waterproof layer 1c.

Further, as the dye 2 used in the body fluid absorbing pad of the present invention, a dye that changes color in the pH range of 4 to 5 and 5 to 6 is used. In general, this is often pathological when the pH of the lichen is 5 or more, and the p of the lichen is p.
Since it is often normal when H is 5 or less, it is preferable to use the dye 2 which changes color in the above pH range. In addition, since the pH becomes 5 or more even when rupture of water occurs in a person with urinary incontinence or a pregnant woman, it is preferable to use the above dye 2 even in such a case. In Examples, as such a dye 2, nitrazine yellow represented by the following chemical formula [alias;
2- (2,4-dinitrophenylazo) -1-naphthol-3,6-disulfonate disodium] was adopted.

[0022]

[Chemical 1]

The above-mentioned nitrazine yellow changes its color to yellow at pH 4, changes to yellow-green at pH 5, and changes to blue at pH 6, and is very safe for humans.

In order to make the dye 2 into an ink, the dye 2 may be adsorbed on the hydrogel particles having a cation group, and the surface thereof may be moisture-permeable, if necessary, so that the composition is covered with a water-permeable film. Good. This composition may be used in combination with a suitable binder for fixing to the body fluid absorbent pad. The hydrogel particles include acrylic acid /
It is preferable to use a composition represented by a partially cross-linked product of acrylamide / methacrylic acid / N, N-dimethylaminoethyl copolymer with glycerol glycidyl ether, and to set the particle size to 0.01 to 50 μm.

By coating or printing the dye 2 in the form of an ink, the dye 2 does not cause bleeding (a phenomenon in which the dye oozes out) even when the dye 2 is wet with body fluid such as ooze, and the dye 2 has excellent durability. It can be attached to the main body 1 in the closed state. The dye 2 may be applied or printed, and then a cationic coating agent may be applied or printed. By doing so, it is possible to effectively prevent the pigment from falling off the coated or printed surface.

Further, when the dye 2 is nitrazine yellow, as shown in Tables 1 and 2, it has a pH of 4 as compared with other dyes such as methyl red, bromothymol blue and bromocresol green. In addition to a clear discoloration in the ~ 6 area, it becomes difficult to change with time under heating and humidification (40 ° C, 75%) and light exposure.

[0027]

[Table 1]

[0028]

[Table 2]

If nitrazine yellow is made into an ink and prepared to be neutral, it will be applied or printed in a blue state, and if nitrazine yellow is made into an ink and prepared to be weakly acidic, It will be applied or printed in the yellow state.

Therefore, in the case where nitrazine yellow is made into an ink and applied or printed in a blue state, the color of blue changes from yellow to normal when it is normal, but when it is abnormal, it remains blue. Does not discolor. Further, in the case where nitrazine yellow is made into an ink and applied or printed in a yellow state, the color does not change from the yellow color to a yellow color when the color is normal, and the color changes from yellow to blue when the color is abnormal.

Therefore, although the former is actually normal, it may be misunderstood as an abnormality because it may not change its color as blue when there is no or only a small amount of bleeding. However, in the latter case, it is yellow in the normal case, so
Even if there is no discoloration or when there is little discoloration, there is no misunderstanding that it is abnormal.

[0032]

EFFECT OF THE INVENTION The patch for absorbing body fluid according to the present invention is constructed as described above, and the pigment 2 which changes color depending on pH changes its color when wet with body fluid such as mould, and the degree of this color change is absorbed. Since it can be seen from the front or back of the patch, it can be used as a barometer to easily check the health condition and physical condition. Further, by using the body fluid absorbent pad of the present invention, even when the doctor measures the pH of the patient's swelling, an internal examination is not required at the time of collection, and the measurement is not difficult.

Further, if the portion to which the dye 2 is attached is the absorber 1b or the waterproof layer 1c, the dye 2 does not directly contact the user's skin during use, so that a sense of security can be obtained. It has been made possible.

Further, by coating or printing the above-mentioned dye 2 and then coating or printing a cationic coating agent, it is possible to effectively prevent the dye from falling off the coated or printed surface, so that it is safe. In terms of, it became more secure.

Further, when Nitrazine Yellow is used as the pigment 2 which changes color depending on pH, the color changes to yellow, yellow green or blue depending on the pH of the body fluid, so that the health condition, physical condition, etc. can be more clearly checked. It became so.

In addition, in the case where nitrazine yellow is made into an ink and applied or printed in a yellow state, it is misunderstood that the bookmark is abnormal because it remains yellow indicating a normal state when there is no bookmark or when there are few bookmarks. Never do
This makes it easier to check your health and physical condition.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of an embodiment of a body fluid absorbent pad according to the present invention.

FIG. 2 is a sectional view taken along line AA in FIG. 1 of a pad for absorbing body fluid according to the present invention.
It is an expanded sectional view by a line.

FIG. 3 is an enlarged cross-sectional view of another embodiment of the bodily fluid absorption pad according to the present invention.

[Explanation of symbols]

 1 Main Body 1a Surface Material 1b Absorber 1c Waterproof Layer 2 Dye

Claims (7)

[Claims] 1. A body fluid absorbing patch, characterized in that a pigment (2) that changes color depending on pH is attached to the main body (1). 2. A body fluid absorbing patch, characterized in that a pigment (2) that changes color according to pH is made into ink and attached to the main body (1). 3. The body (1) is at least a surface material (1).
a), the absorber (1b), and the waterproof layer (1c), and the surface material (1a) is a transparent material, and
Dye (2) that changes color on the surface of the absorber (1b) depending on pH
A material for absorbing body fluid, which is characterized by having adhered thereto. 4. The body (1) is provided with at least a surface material (1).
a), the absorber (1b), and the waterproof layer (1c), and the waterproof layer (1c) is made of a transparent material.
P on the back surface of the absorber (1b) or the inner surface of the waterproof layer (1c)
A bodily fluid-absorbing patch, comprising a dye (2) that changes color by H. 5. A dye (2) that changes color depending on pH is applied to the main body (1) as an ink and then applied or printed,
A body fluid absorbing patch, which is coated or printed with a cationic coating agent. 6. The body fluid absorbing patch according to claim 1, wherein the dye (2) is Nitrazine Yellow. 7. The bodily fluid-absorbing patch according to claim 1, wherein the dye (2) is nitrazine yellow and is applied or printed in a slightly acidic state.