CN2681720Y

CN2681720Y - Sanitary napkin

Info

Publication number: CN2681720Y
Application number: CN 200420005406
Authority: CN
Inventors: 周平; 谢如祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-02-27
Filing date: 2004-02-27
Publication date: 2005-03-02
Anticipated expiration: 2014-02-27

Abstract

Disclosed is a sanitary napkin comprising a surface pervious layer, an impervious layer and an absorption layer between the surface pervious layer and the impervious layer. The outside of the impervious layer is coated with an adhesive layer and the external side of the adhesive layer is coated with a separable paper. The sanitary napkin is characterized in that a hollow layer extends forward from the middle of the absorption layer between the surface pervious layer and the absorption layer, and furthermore at least one hole is arranged in the middle of the hollow layer. A thickened layer extending backward from the middle of the absorption layer is connected with the hollow layer. The sanitary napkin has the advantages that the front concave structure fits the physiological structural feature of a human body and can avoid friction between human body and the surface of a common flat or convex sanitary napkin so that the sanitary napkin is comfortable to use. The hollow layer can effectively accelerate the absorption rate and can direct the exhaust liquid to flow into the absorption layer. The back thickened layer fits with the physiological structure of the breech, which can effectively prevent the exhaust liquid permeating backward and enlarges the absorption area.

Description

Sanitary towel

Technical field:

This utility model relates to a kind of sanitary towel, particularly a kind of sanitary towel that unique leak free design is arranged.

Background technology:

The basic structure of the various sanitary towels that are used for absorb body fluids is known in the prior art.Sanitary towel is mainly used to collect, absorb and contain the liquid storage body, and its basic structure comprises a surface seepage layer that can see through liquid, an absorbed layer and an impervious barrier.Sanitary towel need solve three problems, and the one, good absorbing, the 2nd, prevent seepage, the 3rd, comfortable and easy to wear.In order to address these problems existing multiple solution in the prior art.Existing sanitary towel mainly adopts plane or middle convex sanitary towel, in use can occur uncomfortable and side leakage after defective such as leak.No. 02253371.0 utility model of Chinese patent provides a kind of inner concave shape sanitary towel, can accelerate infiltration rate, but uses pleasant in use because human physiological structure's reason a spot of back still can occur and leak.

The utility model content:

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of good absorbing is provided, can effectively prevents to leak the particularly sanitary towel of back leakage.

Sanitary towel provided by the utility model, comprise the surface seepage layer, impervious barrier, be positioned at described surface seepage layer and the intermediary absorbed layer of impervious barrier, the described impervious barrier outside scribbles a glue-line, and described glue-line outside is coated with a release paper, in the middle of surface seepage layer and absorbed layer, extend forward from the middle part of described absorbed layer and to be provided with a hollow layer, the hollow layer middle part has at least one perforate; Link to each other with hollow layer, extending back from the absorbed layer middle part is provided with a thickening layer that exceeds hollow layer.

Hollow layer middle part is an oval aperture, and perforate also can be circular, square, triangle or other shapes, and the length that can also be provided with equivalent diameter in the middle part of the hollow layer and be 5～20 perforate hollow layers of 5-15mm is 30～40% of absorbed layer length.

The thickness of thickening layer is 110～300% of hollow layer, and length is 60～100% of hollow layer.

The global shape of hollow layer and thickening layer is wide, the middle narrow waist shapes in two ends, and thickening layer the widest part is 50～100% of hollow layer the widest part.

Also can be provided with the water conservancy diversion layer in the middle of hollow layer and thickening layer and the absorbed layer.

In the time of concrete the manufacturing, hollow layer can use double-deck elastic cotton or non-woven fabrics or dust-free paper, and absorbed layer is wood pulp paper or elastic cotton or SAP, and permeable formation is making hole film or non-woven fabrics, the water conservancy diversion layer is non-woven fabrics or elastic cotton or making hole film, impervious barrier PE film and non-woven fabric compounded.

Compared with prior art, the utlity model has its preceding recessed structure of following advantage and meet human physiological structure's characteristics, can avoid of the friction of the sanitary towel of the plane used always or projection to health, use comfortable, hollow layer can effectively quicken infiltration rate and can guide the flow direction absorbed layer of discharging, back thickening layer and human buttock's physiological structure coincide, and can effectively avoid the liquid of discharging seepage backward, have also increased absorption area simultaneously.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is along the generalized section of A-A direction among Fig. 1.

The specific embodiment:

Referring to Fig. 1 and Fig. 2, sanitary towel provided by the utility model, comprise surface seepage layer 1, impervious barrier 2, be positioned at described surface seepage layer 1 and impervious barrier 2 intermediary absorbed layers 3, absorbed layer 3 is the main bodys that absorb drain, impervious barrier 2 outsides scribble a glue-line 4, described glue-line 4 outsides are coated with a release paper 5, and are middle with absorbed layer 3 at surface seepage layer 1, extend forward from the middle part of described absorbed layer 3 to be provided with a hollow layer 6, hollow layer 6 middle parts have at least one perforate 7, hollow layer 6 is bonding with permeable formation 1 usefulness PUR or hot press, and hollow layer 6 promptly can quicken to absorb, and also can reduce the friction to health.Link to each other with hollow layer, extending back from absorbed layer 3 middle parts is provided with a thickening layer 8 that exceeds hollow layer 6, and thickening layer is corresponding with human buttock's physiological structure, can increase absorption area, more can well prevent the back leakage.In order to make more perfect functions, can be provided with water conservancy diversion layer 9 in the centre of hollow layer 6 and thickening layer 8 and absorbed layer 3, this utility model adopts mushy planar structure.Described each interlayer adopts PUR or hot press bonding mutually, and permeable formation 1 and impervious barrier 2 areas are greater than other layers, and each layer encapsulated by structures be wherein with other when its outer rim is bonding.

Hollow layer 6 middle parts of described sanitary towel can be made into an oval aperture 7, hollow layer 6 middle parts also can be provided with 5～20 perforates that equivalent diameter is 5-15mm, the length of hollow layer 6 is 30～40% of absorbed layer 3 length, and perforate 7 can also be upper shed or circular or other shapes of not sealing.

The thickness of described thickening layer 8 is 110～150% of hollow layer, and length is 60～100% of hollow layer 6.Thickening layer the widest part is 50～100% of hollow layer 6 the widest part.

Hollow layer 6 is wide, the middle narrow waist shapes in two ends with the global shape of thickening layer 8.

In the time of concrete the manufacturing, hollow layer can use double-deck elastic cotton or non-woven fabrics or dust-free paper, and absorbed layer is five layers of wood pulp paper or elastic cotton or SAP, and permeable formation is making hole film or non-woven fabrics, the water conservancy diversion layer is non-woven fabrics or elastic cotton or making hole film, impervious barrier PE film and non-woven fabric compounded.

In actual production, can when the drilling of hollow out hollow layer, the material that digs out be stacked the formation thickening layer backward, thereby economize in raw materials, reduce cost.

Claims

1, a kind of sanitary towel, comprise surface seepage layer (1), impervious barrier (2), be positioned at described surface seepage layer (1) and the intermediary absorbed layer of impervious barrier (2) (3), described impervious barrier (2) outside scribbles a glue-line (4), and described glue-line (4) outside is coated with a release paper (5), it is characterized in that: middle at surface seepage layer (1) and absorbed layer (3), extend forward from the middle part of described absorbed layer (3) and to be provided with a hollow layer (6), hollow layer (6) middle part has at least one perforate (7); Link to each other with hollow layer, extending back from absorbed layer (3) middle part is provided with a thickening layer (8) that exceeds hollow layer (6).

2, sanitary towel according to claim 1 is characterized in that: hollow layer (6) middle part is provided with an oval aperture (7).

3, sanitary towel according to claim 1 is characterized in that: it is a perforate (7) that hollow layer (6) middle part is provided with, and perforate (7) can be circular, square, triangle or other shapes.

4, sanitary towel according to claim 1 is characterized in that: hollow layer (6) middle part is provided with 5～20 perforates (7) that equivalent diameter is 5-15mm.

5, sanitary towel according to claim 1 is characterized in that: the length of hollow layer (6) is 30～40% of absorbed layer (3) length.

6, sanitary towel according to claim 1 is characterized in that: the thickness of described thickening layer (8) is 110～300% of hollow layer (6), and length is 60～100% of hollow layer (6).

7, sanitary towel according to claim 1 is characterized in that: described thickening layer the widest part is 50～100% of hollow layer (6) the widest part.

8, sanitary towel according to claim 1 is characterized in that: described hollow layer (6) is wide, the middle narrow waist shapes in two ends with the global shape of thickening layer (8).

9, according to the arbitrary described sanitary towel of claim 1-6, it is characterized in that: described hollow layer (6) and thickening layer (8) and the middle water conservancy diversion layer (9) that also can be provided with of absorbed layer (3).