JPS6021056Y2 - sanitary napkin - Google Patents

Description

[Detailed description of the invention] This invention applies a partial characteristic surface press to the surface of the absorbent layer, which corresponds to the rear part of the absorbent layer, for the purpose of placing it on the skin during use. When attaching linear ulcers (line press) from the front and back, the surface press acts as a rising guide band, and the line press acts as a bending guide line, and the flat sanitary napkin is
The feature is that when in use, the shape of the part changes three-dimensionally to the buttock surface due to groin pressure from the left and right sides.

Generally, the napkin anti-slip tape provided to prevent the napkin from moving during use is usually placed within about one-third of the front portion of the napkin's total length.

As a result, the front part where the adhesive part is fixed is fixed, but the central part that is in contact with the cavity and the rear part that is in contact with the buttocks are in a very unstable state. There is a high possibility of leakage or leakage.

This design has been improved through repeated research to solve these drawbacks.

That is, a strong surface press with an Erlenmeyer flask cross section is applied to the one-third portion of the absorbent layer constituting the sanitary product, which corresponds to the rear part during use (third view, b, c, d, e, f).

In this case, the cross-sectional shape of the Erlenmeyer flask must be symmetrical with respect to the center line of the crest.

Next, leave only the upper part c and d of the Erlenmeyer flask cross section, and frame the outer periphery of the Erlenmeyer flask cross section from the surface (Fig. 3 a, b, c, f, e, d), and also the mountain surface. An edge press is applied from the surface of the absorbent layer on the center line (Fig. 4 g, h).

As described above, the part according to the present invention uses the linear mark (line press) as a bending guide line, and the strongly pressed surface becomes a rising guide band, so that in actual use, the groin pressure from the left and right will naturally create a three-dimensional shape on the buttocks surface. This leads to being trapped.

The rising phenomenon caused by the crotch pressure at this time cannot be realized on a bulky and flexible surface, but the portion that has become plate-like due to local strong pressure easily rises starting from the bending guide line.

As a result, the sanitary napkin according to the invention is fixed with anti-friction tape at the front and pinched at the rear buttocks, thereby stabilizing the vaginal contact area at the center and increasing the adhesion to the skin at the front and back. No slippage or movement occurs, and more reliable absorption capacity can be achieved.

The materials constituting the absorbent layer include cotton pulp, absorbent paper, superabsorbent polymers, etc., as well as composites of these materials. There's no reason to prevent it.

Further, the present invention can be effectively applied to cases in which the entire absorbing layer, or the rear half or the rear third of the absorbing layer is electrically reduced in advance.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway perspective view, Figure 2 is Figure 1
- Cross-sectional view along ■ line, Figure 3 is 1... surface view of absorbing layer,
FIG. 4 is a real side view of the absorbing layer 1. 1... Absorbent layer, 2... Leak proof material, 3... Cushion material, 4... Covering material, 5... Displacement Adhesive tape.

Claims (1)

[Claims for Utility Model Registration] A strong pressure surface press in the shape of an Erlenmeyer flask cross-section and a line press bordering it on the surface of the one-third absorbent layer that corresponds to the rear part during use in a sanitary napkin. Furthermore, from the back side, a line press is applied at a position where the cross-sectional shape of the Erlenmeyer flask is cut symmetrically, and leak-proofing material, cushioning material, enveloping material,
Sanitary napkins that can be used together with anti-slip adhesive tape, etc.