JPH0788132A - Body fluid absorbing material - Google Patents

Abstract

PURPOSE:To constitute the absorbing material so that it has a liquid absorbing property, and also, a dry feeling, so that an unpleasant stuffy feeling is scarcely given to a wearing part by laminating nonwoven cloth having water repellency and nonwoven cloth having a liquid absorbing property on the wearing face side, and forming ruggedness and plural pieces of through holes. CONSTITUTION:In a main body part 1, a body fluid absorbing material 2 is wound round to the reverse side 4 from the wearing face side 3 and both end parts are superposed to each other, and to the reverse side 4, a waterproof synthetic resin sheet 5 is stuck. The body fluid absorbing material 2 is formed by laminating nonwoven cloth 6 in which at least the surface to be used as the wearing face side 3 has water repellency and nonwoven cloth 7 having a liquid absorbing property. Also, by superposing both the nonwoven cloths 6, 7 and performing embossing for heating and press-bonding it at >=100 deg.C, both the nonwoven cloths 6, 7 is laminated, and also, a laminated body having ruggedness is formed. In this case, by performing the embossing, plural pieces of through--holes 8 are formed simultaneously with the ruggedness.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a body fluid absorbent.

[0002]

2. Description of the Related Art A body fluid absorbent (for example, applied to sanitary products and diapers) is used to absorb menstrual blood, swelling, sweat, urine and other body fluids. Conventional body fluid absorbers were formed of non-woven fabrics that have liquid absorbency,
The non-woven fabric that has absorbed body fluid has a problem that it gives a moist unpleasant wet feeling to a worn part.

There are also those formed of a water-repellent non-woven fabric, and those formed of a liquid-absorbent non-woven fabric whose water-repellent surface is treated. Although these have anti-backflow properties and have a dry feel, they have a low liquid-absorbing property and therefore have a slow rate of absorbing body fluids, and the body fluids flow widely on the surface of the nonwoven fabric, or are worn until the absorption is completed. There was a problem of giving a moist and unpleasant wet feeling.

Further, there has been one in which a film having a large number of pores is used on the wearing surface side. Although this product has a reversion preventing property and has a dry feeling, it has a problem that it gives a sticky feeling peculiar to the film and an unpleasant stuffiness to a worn portion.

[0005]

SUMMARY OF THE INVENTION Therefore, the present invention is intended to provide a body fluid absorbing material which has both liquid absorbency and a dry feeling, and which does not easily give an unpleasant stuffy feeling to a worn portion.

[0006]

In order to solve the above problems, the present invention takes the following technical means. In the body fluid absorbent of the present invention, a nonwoven fabric 6 having water repellency on at least the surface 3 to be worn and a nonwoven fabric 7 having a liquid absorbing property are laminated, and further, a plurality of irregularities and a plurality of through holes 8 are formed. And are formed.

Further, the through hole 8 is formed in the concave and convex concave portion 9.
May be formed.

[0008]

As a result of adopting the above means, the present invention has the following effects. This body fluid absorbent material has a non-woven fabric 6 having water repellency on at least the surface thereof as the wearing surface side 3, and since the fibers do not retain the body fluid on the wearing surface, there is a dry feeling. Further, the non-woven fabric 6 and the non-woven fabric 7 having a liquid absorbing property are laminated and a plurality of through holes 8 are formed,
Since the body fluid on the wearing surface side 3 is quickly absorbed by the nonwoven fabric 7 having the liquid absorbing property through the through holes 8, the liquid absorbing property is good. Similarly, by laminating a nonwoven fabric 6 having water repellency on at least its surface and a nonwoven fabric 7 having a liquid absorbing property, the through hole 8 can be formed.
It is possible to quickly absorb the body fluid into the non-woven fabric 7 having the liquid absorbing property also from the gaps between the fibers other than the above. Therefore, the non-woven fabric 6 having at least its surface having water repellency is unlikely to give a sticky feeling or a feeling of dullness to a worn portion due to body fluid remaining in a non-opened portion like the perforated film material described in the section of the prior art. .

Further, since a plurality of unevennesses are formed and the contact feeling when worn is reduced, it is less likely to cause stuffiness.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show Example 1 of this body fluid absorbent, which is applied to a body fluid absorbent pad for absorbing body fluid such as menstrual blood, stains, sweat, urine and the like.

This bodily fluid absorbing pad comprises a release paper (not shown) and a track-shaped main body 1 for track and field.
The body portion 1 has the body fluid absorbent 2 wound from the wearing surface side 3 to the back surface side 4, both ends are overlapped, and the waterproof synthetic resin sheet 5 is bonded to the back surface side 4. The synthetic resin sheet 5 prevents the body fluid absorbent 2 from absorbing the liquid and getting wet, and thus prevents the underwear from getting wet. An adhesive layer (not shown) is formed on the surface of the synthetic resin sheet 5 that is attached to the underwear.
Release paper is attached to this. At the time of use, peel off the release paper and attach it to the underwear.

The body fluid absorbing material 2 is formed by laminating a non-woven fabric 6 having water repellency on at least the surface to be worn side 3 and a non-woven fabric 7 having liquid absorbency. In this embodiment, as the former, a synthetic fiber non-woven fabric, which is entirely treated to be water repellent, is used. Here, the entire nonwoven fabric is treated to be water repellent, but at least the surface thereof should be water repellent. Also, in this example, a non-woven fabric made of cellulose fiber having hydrophilicity was used as the latter. The non-woven fabrics each had a thickness of about 0.6 to 0.8 mm.
Although this embodiment has a two-layer structure, it may have a multilayer structure. In addition, another liquid absorbent (not shown) may be additionally provided in a state of being brought into contact with the liquid absorbent non-woven fabric 7 of the body fluid absorbent 2.

The two non-woven fabrics 6 and 7 are overlapped to form 100
Both nonwoven fabrics were laminated and a laminate having a plurality of irregularities was formed by performing a known embossing process in which heating and pressure bonding was performed at a temperature of not less than ° C. At this time, by embossing, a plurality of through holes 8 are formed at the same time as the unevenness. Both the non-woven fabrics are adhered on the entire surface and also strongly adhered on the concave portion 9. The through hole 8 has a substantially circular cross-sectional shape, and is formed at the bottom of the concave and convex concave portion 9. The diameter of the recess 9 was set to about 0.7 mm, and the diameter of the through hole 8 formed in the recess 9 was set to about 0.4 to 0.5 mm. The distance between the concave and convex portions 9 and the center of the concave portion 9 is about 0.7 mm.
Set to. In this embodiment, the through hole 8 is formed in the bottom of the recess 9.
Although the through hole 8 is not necessarily formed in the concave portion 9, it may be formed in the convex portion 10 (not shown).

The bodily fluid absorbent pad of this embodiment has an advantage that it has a dry feeling because the nonwoven fabric 6 having water repellency is used as the wearing surface side 3 and the fibers do not retain the bodily fluid on the wearing surface. Further, the non-woven fabric 6 and the non-woven fabric 7 having a liquid absorbing property are laminated and a plurality of through holes 8 are formed, and the body fluid on the wearing surface side 3 has a liquid absorbing property through the through holes 8. 7 has a merit that it has a high liquid absorbing property because it is quickly absorbed. Similarly, by laminating a nonwoven fabric 6 having water repellency on at least its surface and a nonwoven fabric 7 having a liquid absorbing property, a nonwoven fabric 7 having a liquid absorbing property can be rapidly absorbed also from a gap between fibers other than the through holes 8. It became possible to absorb it. Therefore, the non-woven fabric 6 having at least its surface having water repellency is unlikely to give a sticky feeling or a feeling of stuffiness to a worn portion due to body fluid remaining in a non-opened portion like the perforated film material described in the section of the prior art. . Furthermore, since a plurality of irregularities are formed and the contact feeling when worn is reduced, there is an advantage that an unpleasant stuffiness is unlikely to occur.

FIG. 3 shows a second embodiment of the body fluid absorbing material 2, which is also applied to a body fluid absorbing pad. The difference from the first embodiment will be mainly described. In this embodiment, the main body 1 has a violon shape. Further, in this embodiment, a liquid absorbing sheet (not shown) is housed and adhered between the body fluid absorbent 2 on the wearing surface side 3 and the synthetic resin sheet 5 on the back surface side 4, and the outer circumference is heated. It is formed by sealing. In this embodiment, the absorbent sheet formed of a water-absorbent polymer was used, but any other known absorbent sheet can be adopted.

In the above-mentioned first and second embodiments, the body fluid absorbent 2 is applied to the body fluid absorbent pad material, but it can be suitably applied to diapers and the like.

[0017]

The present invention has the above-mentioned structure and has the following effects. It is possible to provide a body fluid absorbent that has both liquid absorbency and a dry feel and that does not give an unpleasant stuffy feel to a worn part.

[Brief description of drawings]

FIG. 1 is a partial sectional perspective view showing a first embodiment of a body fluid absorbent according to the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part of the body fluid absorbent of FIG.

FIG. 3 is a perspective view showing a second embodiment of the body fluid absorbent according to the present invention.

[Explanation of symbols]

 3 Wearing surface side 6 Nonwoven fabric having water repellency at least on the surface 7 Nonwoven fabric having liquid absorbing property 8 Through hole 10 Recessed portion

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location B01J 20/28 A 7202-4G A61F 13/18 310 Z

Claims (2)

[Claims] 1. A non-woven fabric (6) having water repellency on at least the surface to be worn side (3) and a non-woven fabric (7) having liquid absorbability are laminated, and further, a plurality of irregularities and a plurality of A body fluid absorbent characterized in that a through hole (8) is formed. 2. The body fluid absorbent according to claim 1, wherein the through-hole (8) is formed in the concave and convex portion (9).