WO2012119353A1

WO2012119353A1 - High-elasticity sanitary napkin for preventing side leakage

Info

Publication number: WO2012119353A1
Application number: PCT/CN2011/075109
Authority: WO
Inventors: 杨印海
Original assignee: 小护士(天津)实业发展股份有限公司
Priority date: 2011-03-09
Filing date: 2011-06-01
Publication date: 2012-09-13

Abstract

A high-elasticity sanitary napkin for preventing side leakage includes a liquid impermeable bottom layer (5), a liquid permeable top layer (6) provided at the center of the bottom layer (5), and an absorbent layer (9) provided between the bottom layer (5) and the top layer (6). At two sides of the top layer (6) are provided extension parts and liquid suction grooves (10). An anti-leakage layer (11) is provided at an intersection of each extension part and the top layer (6). The anti-leakage layer (11) can be omega-shaped or pi-shaped and can be filled with hot melt adhesive therein. A transition region (12) can be formed outside the anti-leakage layer (11). Elastic elements (13) can be provided in the anti-leakage layer (11). The high-elasticity sanitary napkin for preventing side leakage has the characters of rational design, simple structure, resistant to deformation and better effect of preventing leakage.

Description

High elastic anti-side leakage sanitary napkin

The invention relates to the field of feminine hygiene products, in particular to a high-elastic anti-side leakage sanitary napkin. Background technique

The sanitary napkin requires the liquid absorbing layer to sufficiently absorb menstrual blood during the wearing process to prevent leakage of menstrual blood. The existing sanitary napkins are deformed when subjected to an external force during wearing, and the menstrual blood cannot be sufficiently absorbed, and liquid leakage occurs, and the clothes are soiled. Especially when the wearer changes between standing and sitting in different postures, the thigh root is constantly moving, and a gap is easily generated between the worn article and the body, causing the excretion liquid to leak out from the gap, causing the lateral side. Leak, stain the clothes. Summary of the invention

In order to overcome the above-mentioned deficiencies of the prior art, embodiments of the present invention provide a high-elastic anti-side leakage sanitary napkin, and the technical solution is as follows:

A high-elastic anti-side leakage sanitary napkin comprising a liquid-impermeable bottom layer, a bottom layer of the bottom layer is provided with a liquid-permeable top layer, and an absorption layer is disposed between the bottom layer and the top layer, and the top layer is disposed on both sides There is an extension portion, and the leakage portion is disposed at the intersection of the extension portion and the top layer.

Further, a liquid suction groove is disposed on both sides of the top layer.

Specifically, the shape of the leakage preventing layer is an Ω shape or a II shape.

Further, an outer side of the leakage preventing layer forms a transition region.

Further, an elastic member is disposed in the leakage preventing layer.

Further, the leakage preventing layer is filled with a hot melt adhesive.

A high-elastic anti-side leakage sanitary napkin according to an embodiment of the present invention, which is provided with a liquid-permeable top layer in a central portion of the bottom surface, and an absorbing layer between the top layer and the bottom layer, and is disposed on both sides of the top layer. There is a leakage preventing layer extending in the longitudinal direction and tending to the top layer and an extending portion extending to the outside of the above-mentioned leakage preventing layer, and a part of the extending portion is bent toward the bottom layer side and fixed to the undergarment.

One side of the extension is extended to the top layer to the top layer; the other side extends to the bottom layer to engage the bottom layer. And a part of the transition area is disposed along the length direction of both sides and the top layer of the leakage preventing layer.

In the above sanitary napkin, the transition region is provided in the region for bending a part of the extension, when from the side The external pressure of the square is transitioned in the above transition region, the pressure acting on the leakage preventing layer is reduced, and the leakage preventing layer is not easily deformed due to the difference in the shape of the leakage preventing layer itself.

Further, the leakage preventing layer is provided with an elastic member having an elastic contraction force in the longitudinal direction, and the leakage preventing layer can be erected from the direction in which the surface layer is separated. When the leakage preventing layer is raised, it is easy to block the liquid flowing in the lateral direction along the top layer.

In summary, the sanitary napkin of the present invention minimizes the occurrence of side leakage of the sanitary napkin by providing a leakage preventing layer and a transition zone. Compared with the prior art, a high-elastic anti-side leakage sanitary napkin according to the embodiment of the invention has the characteristics of reasonable design, simple structure, no deformation and better leakage prevention effect. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

1 is a front view showing the structure of a high-elastic anti-side leakage sanitary napkin according to an embodiment of the present invention;

Figure 2 is a cross-sectional view of the embodiment of the high-elastic side leakage sanitary napkin of Figure 1 taken along line I-I;

Figure 3 is a cross-sectional view of the embodiment of the high-elastic side leakage sanitary napkin of Figure 1 taken along the line I-I;

Figure 4 is a cross-sectional view along the line I-I of still another embodiment of the high-elastic side leakage sanitary napkin of Figure 1.

In the figure: 1 leading edge, 2 trailing edge, 3 left side, 4 right side, 5 bottom layer, 6 top layer, 7 left wing, 7a edge, 8 right wing, 8a edge, 9 absorption layer, 10 suction tank, 11 defense Leakage layer, part of the 11a half side, l ib another part, 12 transition zone, 13 elastic pieces, 14 joint parts, 15 adhesive. detailed description

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Example 1

As shown in FIG. 1 , a high-elastic anti-side leakage sanitary napkin according to an embodiment of the present invention has a planar shape having a circular arc-shaped leading edge 1 and a trailing edge 2, and a curved left side 3 and Right side 4, the width dimension (X direction) of the sanitary napkin is the distance between the left side 3 and the right side 4; the length dimension (Y direction) is the distance dimension of the leading edge 1 and the trailing edge 2.

As shown in FIG. 2, a cross-sectional view of a high-elastic anti-side leakage sanitary napkin according to an embodiment of the present invention, the sanitary napkin There is a liquid-impermeable bottom layer 5 and a liquid-permeable top layer 6, and the bottom layer 5 has the outer shape of the sanitary napkin shown in Fig. 1, that is, the front edge 1, the trailing edge 2, the left side 3, the right side 4, and the left wing. 7 and the shape of the end edges 7a and 8a of the right wing 8.

As shown in Fig. 2, an absorbing layer 9 having a prescribed thickness is disposed between the top layer 6 and the bottom layer 5.

As shown in FIG. 2, the bottom layer 5 and the absorbing layer 9 are bonded by a hot melt adhesive, and the top layer 6 and the absorbing layer 9 are bonded by a liquid permeable hot melt adhesive and heated. The suction tank 10 is formed by pressurization.

As shown in FIG. 2, a longitudinal direction of the sanitary napkin parallel to the sanitary napkin of FIG. 1 is provided within a certain distance from both sides of the liquid-absorbent tank 10, and is rejected to the both sides in the lateral direction of the sanitary napkin. A leakage preventing layer 11 composed of a water-based article.

As shown in FIG. 2, when the aforementioned water-repellent article is bent to join the top layer 6 to form the leakage preventing layer 11, there is a transition region 12, and when the external pressure from the side is transitioned in the transition region 12, the effect is reduced. The pressure on the leakage preventing layer 11.

As shown in FIG. 2, a plurality of elastic members 13 extending in the longitudinal direction are bonded to the inside of the leakage preventing layer 11, and the elastic members 13 are joined to the water-repellent member after being stretched and subjected to different force states. , is fixed to the top layer 6. Therefore, when the sanitary napkin is not subjected to any external force, the elastic member 13 bends the sanitary napkin due to the contraction force, and the leakage preventing layer 11 thus stands up from the direction in which the sanitary napkin top layer 6 is separated. The cross-sectional shape of the leakage preventing layer 11 in the standing state is substantially II-shaped. Example 2:

As shown in FIG. 3, a cross-sectional view of a high-elastic anti-side leakage sanitary napkin according to another embodiment of the present invention. When the sanitary napkin is placed on the wearer's underwear, the pressure from the side is subjected to the bending of the portion 14 of the leakage preventing layer 11 and the transition region 12, and the external force of the elastic member 13 is applied to the inner side of the leakage preventing layer 11 The surface of the top layer 6 is inclined, and the outer side rises in the direction away from the top layer 6 of the sanitary napkin, blocking the flow of liquid along the surface of the top layer 6 to the side. Example 3:

Figure 4 is a cross-sectional view showing a high-elastic side leakage sanitary napkin according to still another embodiment of the present invention. The cross-sectional shape of the leakage preventing layer 11 in the standing state is substantially Ω-shaped.

In Fig. 4, a portion 11a of the half side of the leakage preventing layer 11 is bonded to the other portion 1ib by the hot melt adhesive 15 during the bending process, thereby increasing the strength of the leakage preventing layer and reducing the side pressure. The resulting deformation will block the flow to the side of the liquid. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

Claim

A high-elastic anti-leakage sanitary napkin comprising a liquid-impermeable bottom layer, wherein a bottom layer is provided with a liquid-permeable top layer, wherein an absorption layer is disposed between the bottom layer and the top layer. An extension portion is disposed on both sides of the top layer, and a leakage preventing layer is disposed at the intersection of the extension portion and the top layer.

2. A high-elastic side leakage sanitary napkin according to claim 1, wherein a suction tank is provided on both sides of the top layer.

A high-elastic anti-side leakage sanitary napkin according to claim 1, wherein the shape of the leakage preventing layer is

Omega or II shape.

A high-elastic side leakage sanitary napkin according to any one of claims 1 to 3, characterized in that the outer side of the leakage preventing layer forms a transition region.

A high-elastic side leakage sanitary napkin according to any one of claims 1 to 4, wherein an elastic member is provided in the leakage preventing layer.

A high-elastic side leakage sanitary napkin according to any one of claims 1 to 4, wherein the leakage preventing layer is filled with a hot melt adhesive.