JPH0315465A - Physiological napkin - Google Patents

Abstract

PURPOSE:To completely prevent a side leak with easiness in use by overlapping absorbing paper, which interposes an absorbing material, on oval-shaped waterproof paper and also unwoven fabric and embossing the peripheral edge part of the absorbing material which heat-seals the peripheral edge part and arranging an adhesive tape on both end parts of small diameter in the lower surface and on both side parts of the absorbing material. CONSTITUTION:On oval-shaped waterproof paper 1, absorbing paper 2 of almost equal shape is overlapped, and an absorbing material 3 is arranged on the paper 2. This material 3 is arranged on the central part, where a minor axis is almost equally divided into three parts, from one end in the lengthwise direction to a position with almost 2/3 the major axis. The absorbing paper 2 and unwoven fabric 4 of almost equal shape to the oval-shaped waterproof paper 1 are overlapped on the material 3, and the peripheral edge part is formed in a heat sealed part 6. While embossing is performed in the peripheral edge part of the absorbing material 3. An adhesive tape 51 is arranged in the vicinity of both end parts of small contour in the lower surface of this physiological napkin, while an adhesive tape 52 is arranged in the corresponding part lower surface in the vicinity of both side parts of the absorbing material 3. The napkin is contracted to a width between the crotches of an underwear and fixed to it by the adhesive tape 51, while a protrusive swollen part is formed by the absorbing material 3 by the adhesive tape 52, and a side leak is prevented with no collapse in shape.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to sanitary napkins.

[Conventional technology and its problems] Conventional sanitary napkins are mainly made of pulp or rayon, and have an absorbent material that absorbs moisture and menstrual blood, and a waterproof material that repels moisture and menstrual blood to prevent it from leaking outside. It is made of wood and waterproof laminate, and is made into an integrated structure whose width is approximately the same as the width of the crotch of the underwear. Therefore, it is difficult to fit the sanitary napkin against the skin, and because the sanitary napkin moves together with the underwear, it loses its shape and causes side leakage. Therefore, the present inventor conducted various research and filed an application [Japanese Patent Application No. 59-244503 (Japanese Patent Application No. 81-125344, Japanese Patent Application Publication No. 83-38778).
No.), Patent Application No. Sho Elf-291835 (Japanese Patent Application No. Sho 63-1
45853), Japanese Patent Application No. 1983-288525, and Japanese Patent Application No. 83-199798].

[Problems to be Solved by the Invention] After that, the inventor conducted further research and obtained a sanitary napkin that is easier to use than conventional sanitary napkins and completely prevents side leakage. That is, an object of the present invention is to solve the above-mentioned problems and provide a sanitary napkin that is comfortable to use, has no fear of side leakage, and can withstand any movement.

[A Thousand Steps to Solve the Problems] - In order to solve the problems described in (h) and achieve the purpose of the invention, the sanitary napkin according to the present invention is characterized by having the following structure. In other words, a layer of absorbent paper of approximately the same shape is placed on top of an oval-shaped waterproof paper, and on the center of the short axis divided into approximately three equal parts, a high An absorbent material with a molecular absorbent interposed therein is provided, and an absorbent paper having approximately the same shape as the oval waterproof paper is layered on top of the absorbent material, and a nonwoven fabric having approximately the same shape is layered on top of the absorbent material, and the peripheral edge is heat-sealed. It is characterized in that the peripheral edge of the absorbent material is embossed, and adhesive tape is provided near both ends of the small diameter on the lower surface and corresponding portions near both sides of the absorbent material.

[Example] DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail below using embodiments shown in the drawings.

Fig. 1 is a plan view of one embodiment of the sanitary napkin according to the present invention, Fig. 2 is a developed plan view of Fig. 1, and Fig. 3 is A of Fig. 2.
-A sectional view, Fig. 4 is A- of Fig. 2 in use condition.
FIG. 3 is a schematic cross-sectional view taken along line A. Here, 1 is waterproof paper, 2 is absorbent paper, 3 is an absorbent material, 4 is a nonwoven fabric, 51.52 is an adhesive tape, 6 is a heat seal part, and 7 is an embossing part.

First, an oval-shaped waterproof paper 1 is prepared, and an absorbent paper 2 of approximately the same shape is placed on top of it. The waterproof paper 1 may be a plastic film, nonwoven fabric, cloth, paper, or the like laminated with a thin film of polyethylene resin or the like. The absorbent paper 2 is made of pulverized pulp or other absorbent material.

The absorbent material 3 is placed on top of the oval-shaped waterproof paper l and an absorbent paper 2 of substantially the same shape.

The absorbent material 3 is obtained by stacking absorbent paper of approximately the same shape on top of the oval waterproof paper, and on the central part of the short axis divided into approximately three equal parts, from one end in the longitudinal direction to approximately one third of the long axis. It is arranged up to the 2nd position. In FIG. 2, the lattice portion indicated by reference numeral 3 is the portion where the absorbent material 3 is provided.

The absorbent material 3 has a polymer absorbent interposed in pulverized pulp as an absorbent material. The pulverized pulp and the polymeric absorbent may be uniformly mixed, or the polymeric absorbent may be disposed in the center of the pulverized pulp. The polymer absorbent can be in various shapes such as powder, sheet, or thread. A polymer absorbent is a polymer compound that absorbs and retains water well.
For example, sodium polyacrylate that is loosely cross-linked with a cross-linking material can be used.

Further, an absorbent paper 2 having substantially the same shape as the oval waterproof paper l is placed on the absorbent material 3, and a nonwoven insulator 4 having substantially the same shape is placed on top of the absorbent paper 3, and a heat-sealed portion 6 is formed at the peripheral edge. In this embodiment, the waterproof paper 1 is formed slightly larger than the absorbent paper 2, and the waterproof paper 1, which is larger than the absorbent paper 2, is folded upward, and the absorbent paper 2 is wrapped with the waterproof paper 1 before being folded. Although the portions are heat-sealed near the ends, they may be heat-sealed near the ends while being overlapped. This heat sealing allows the shape of the sanitary napkin according to this example to be maintained stably.

Further, the peripheral edge of the absorbent material 2 is embossed. This embossing allows the shape of the absorbent material 3 of the sanitary napkin according to this embodiment to be maintained stably.

Adhesive tapes 51 are disposed near both ends of the small diameter on the lower surface of the sanitary napkin according to this embodiment, and adhesive tapes 52 are disposed on the lower surface corresponding to the vicinity of both sides of the absorbent material 3.

When in use, the adhesive tape 5L near both ends of the small diameter
The sanitary napkin according to this embodiment is tied to the width of the crotch of the underwear and fixed to the underwear. By using it in this way, the center part of the sanitary napkin can sag and play, and the center part of the sanitary napkin remains fit against the skin without being affected by the movement of the underwear. Prevents side leakage without losing shape.

Adhesive tape 52 is also placed on the lower surface near both sides of the absorbent material 3.
As shown in FIG. 4, when in use, by bringing the adhesive tapes 52 into close contact with each other, the absorbent material 3 forms a convex bulge, and the bulge touches the local area. It is sealed and fits the skin, and only the ampullae moves as one with the body, so even if the body moves, the shape does not shift and it does not leak from the sides. In addition, since the absorbent material 3 has a convex bulge,
It can increase the absorption volume and can be used for a long time. Furthermore, after use, it is hygienic because it can be stored and disposed of using both longitudinal ends.

[Effects of the Invention] Since the sanitary napkin according to the present invention is constructed as described above, it is comfortable to use, there is no fear of side leakage, and it has the effect of being able to withstand any kind of movement. j.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and FIG. 1 is a plan view of the first embodiment of the sanitary napkin according to the present invention, and FIG.
3 is a developed plan view, FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2, and FIG. 4 is a schematic cross-sectional view taken along the line A-A in FIG. 2 in a state of use. 1●●●Waterproof paper, 7 Fig. 16 2 ● ◆ ● 3 ● ● ● 4 ● ● ● 51 52● 6 ● ● ◆ 7 ● ● ● Absorbent paper, absorbent material, nonwoven fabric/adhesive tape, heat seal part , embossing section.

Claims (1)

[Claims] A layer of absorbent paper of approximately the same shape is layered on top of an oval-shaped waterproof paper, and the short axis is divided into approximately three equal parts. An absorbent material with an agent interposed therein is arranged, and then an absorbent paper of approximately the same shape as the oval-shaped waterproof paper is placed on top of the absorbent material, and a non-woven fabric of approximately the same shape is placed on top of that, and the periphery is heat-sealed, and the absorbent material is 1. A sanitary napkin characterized in that the peripheral edge of the napkin is embossed, and adhesive tape is disposed near both ends of the small diameter on the lower surface and corresponding portions near both sides of the absorbent material.