CN219148225U - Novel absorbing article - Google Patents

Abstract

The utility model provides a novel absorption article which sequentially comprises a surface layer, an upper absorption layer, a lower absorption layer and a bottom layer from top to bottom; the upper absorption layer is a wet-process super absorbent resin absorbent paper layer, and the lower absorption layer is a polyurethane foam cotton layer; the polyurethane foam cotton layer is internally provided with a plurality of through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer; the upper surface of the polyurethane foam cotton layer is provided with a plurality of V-shaped concave surfaces. The novel absorbent article has the advantages of high absorption speed, good dryness, high absorptivity, good air permeability and the like.

Description

Novel absorbing article

Technical Field

The utility model relates to the technical field of physiological sanitary articles, in particular to a novel absorption article.

Background

The composition structure of the prior sanitary absorbent article is roughly divided into a liquid-permeable surface layer, an absorption layer, a bottom layer and the like, and other structures and the like are added according to specific requirements.

With the development of the age, the requirements of consumers on absorbent articles are continuously increased, however, the existing absorbent articles still have one or more problems of low absorption speed, poor dryness or poor air permeability.

In view of the above shortcomings, it would be highly desirable to provide a new absorbent article.

Disclosure of Invention

In order to solve one or more technical problems of the existing absorbent articles, the utility model provides a novel absorbent article. The novel absorbent article has the advantages of high absorption speed, good dryness, high absorptivity, good air permeability and the like.

The utility model provides a novel absorption article which sequentially comprises a surface layer, an upper absorption layer, a lower absorption layer and a bottom layer from top to bottom; the upper absorption layer is a wet-process super absorbent resin absorbent paper layer, and the lower absorption layer is a polyurethane foam cotton layer; the polyurethane foam cotton layer is internally provided with a plurality of through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer; the upper surface of the polyurethane foam cotton layer is provided with a plurality of V-shaped concave surfaces.

Preferably, the aperture of the through holes is 0.5-1.5 mm, and the interval distance between two adjacent through holes is 0.5-1.5 mm.

Preferably, the novel absorbent article further comprises an annular absorbent layer disposed between the top sheet and the upper absorbent layer; the annular absorption layers comprise a plurality of annular absorption areas with arch structures, the inner ring side of each annular absorption area is connected with the upper absorption layer, the outer ring side of each annular absorption area is not connected with the upper absorption layer, and the arch structures are arranged between the inner ring side and the outer ring side of each annular absorption area; the central points of the plurality of annular absorption areas are the same, and the distance between the outer ring side of each annular absorption area and the central point is gradually increased from the central point outwards.

Preferably, the heights of the arch structures of the annular absorption zone are the same or outwards from the central point, and the heights of the arch structures of the annular absorption zone are sequentially increased; the widths of the arch structures of the annular absorption areas are the same or outwards from the central point, and the widths of the arch structures of the annular absorption areas are sequentially increased; and/or the annular absorption area is annular or elliptical.

Preferably, the width of the inner ring side of the annular absorption area connected with the upper absorption layer is 1-2 mm, and the width of the arch structure is 2-5 mm; and/or the annular absorption area is made of wet-process super absorbent resin absorbent paper.

Preferably, in the adjacent two annular absorption zones, the outer annular side of one of the annular absorption zones is above the inner annular side of the other annular absorption zone.

Preferably, the annular absorbent layer is located in a central region of the upper absorbent layer, the width of the annular absorbent layer is smaller than the width of the upper absorbent layer, and the length of the annular absorbent layer is smaller than the length of the upper absorbent layer.

Preferably, the surface layer is a hot air non-woven fabric, a spun-bonded non-woven fabric or a pure cotton non-woven fabric; and/or the bottom layer is a breathable PE bottom film layer.

The utility model has at least the following beneficial effects:

(1) The upper absorption layer of the novel absorption article adopts the wet method to manufacture the super absorbent resin absorbent paper, the lower absorption layer adopts the polyurethane foam cotton layer with a plurality of V-shaped concave surfaces, a plurality of hollow absorption spaces are formed between the upper absorption layer and the lower absorption layer, the absorption capacity can be increased, the bottoms of the two sides of the hollow absorption spaces form a leakage-proof structure, the liquid can be effectively prevented from penetrating to the edge, the lateral diffusion of the absorbed liquid can be effectively prevented, the lateral diffusion of the absorption article is small, and the lateral leakage is effectively prevented; the upper absorption layer and the lower absorption layer are matched with each other, so that the absorption speed of the absorbent article is effectively improved.

(2) Some preferred embodiments of the present utility model include the annular absorbent layer, where the annular absorbent layer includes a plurality of annular absorbent regions having an arch structure, an inner ring side of each of the annular absorbent regions is connected to the upper absorbent layer, an outer ring side of each of the annular absorbent regions is not connected to the upper absorbent layer, and is in a suspension shape, and an arch structure is formed between the inner ring side and the outer ring side of the annular absorbent region; the center points of the annular absorption areas are the same, the distance between the outer ring side of each annular absorption area and the center point is gradually increased from the center point to the outside, the annular absorption areas are arranged to enable the novel absorption article to be in a fluffy state as a whole, gaps are formed between the two arch structures, and a flow guide structure can be formed between the two arch structures, so that the absorption speed of the novel absorption article can be improved, the arch structures are arranged to be beneficial to increasing the fluffiness, and the novel absorption article has good air permeability and is improved in use comfort of a user; in addition, the arched structure can also effectively prevent the lateral diffusion of the absorbed liquid, so that the lateral diffusion of the absorbent article is small, and the lateral leakage prevention is facilitated.

(3) The novel absorbent article has the advantages of high absorption speed, good dryness, high absorptivity, good air permeability and the like.

Drawings

The drawings of the present utility model are provided for illustrative purposes only and the proportion and the size of the parts in the drawings do not necessarily coincide with the actual products.

FIG. 1 is a schematic structural view of a novel absorbent article in some embodiments of the present utility model.

FIG. 2 is a schematic structural view of a novel absorbent article in further embodiments of the present utility model.

FIG. 3 is a schematic structural view of a novel absorbent article in further embodiments of the present utility model.

Fig. 4 is a schematic view of the distribution of the arch structures on the upper absorbent layer in further embodiments of the present utility model.

In the figure: 1: a surface layer; 2: an upper absorbent layer; 3: a lower absorption layer; 31: a through hole; 4: a bottom layer; 5: a hollow absorption space; 6: an annular absorption zone; 61: an arch structure; 62: an inner ring side; 63: an outer ring side.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The present utility model provides a novel absorbent article, for example, as shown in fig. 1, 2, 3 and 4, fig. 1 is a schematic structural view of the novel absorbent article in some embodiments of the present utility model; FIG. 2 is a schematic structural view of a novel absorbent article in further embodiments of the present utility model; FIG. 3 is a schematic structural view of a novel absorbent article in further embodiments of the present utility model; fig. 4 is a schematic view of the distribution of the arch structures on the upper absorbent layer in further embodiments of the present utility model.

The present utility model provides a novel absorbent article, for example, as shown in fig. 1, comprising a top sheet 1 (also denoted as a liquid-permeable top sheet), an upper absorbent layer 2, a lower absorbent layer 3, and a bottom sheet 4 (also denoted as a breathable bottom sheet) in this order from top to bottom; the upper absorption layer 2 is a wet-process super absorbent resin absorbent paper layer, and the lower absorption layer 3 is a polyurethane foam cotton layer; in the utility model, the wet-process super absorbent resin water-absorbing paper layer can be formed by adopting 1-5 layers of wet-process super absorbent resin water-absorbing paper; a plurality of through holes 31 penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are arranged in the polyurethane foam cotton layer; the polyurethane foam cotton layer is made of polyurethane foam cotton made of the prior known material; in the present utility model, the through holes 31 are vertically provided in the polyurethane foam layer, and are preferably uniformly distributed in the polyurethane foam layer; in the present utility model, "plurality" means two or more; the shape, number and size of the through holes 31 are not particularly limited, and can be set as required by those skilled in the art; the through hole 31 may be, for example, a circular through hole, a square through hole or an oval through hole, and preferably, the through hole 31 is a circular through hole; the upper surface of the polyurethane foam cotton layer is provided with a plurality of V-shaped concave surfaces; in the present utility model, the upper absorbent layer 2 and the lower absorbent layer 3 are bonded together to form a plurality of hollow absorbent spaces 5; the utility model does not limit the number, width, depth and the like of the V-shaped, and the person skilled in the art can design the V-shaped character according to the needs; preferably, the depth of each V-shape is 5-30% of the whole thickness of the polyurethane foam cotton layer, and preferably, the width of the uppermost part of the V-shape is 3-8 mm; the novel absorbent article of the present utility model may be, for example, a diaper, a pull-up diaper, a sanitary napkin, a pant-type sanitary napkin, or an incontinence napkin, and is preferably a sanitary napkin.

The upper absorption layer of the novel absorption article adopts the wet method to manufacture the super absorbent resin absorbent paper, the lower absorption layer adopts the polyurethane foam cotton layer with a plurality of V-shaped concave surfaces, a plurality of hollow absorption spaces are formed between the upper absorption layer and the lower absorption layer, the absorption capacity can be increased, the bottoms of the two sides of the hollow absorption spaces form a leakage-proof structure, the liquid can be effectively prevented from penetrating to the edge, the lateral diffusion of the absorbed liquid can be effectively prevented, the lateral diffusion of the absorption article is small, and the lateral leakage is effectively prevented; the upper absorption layer and the lower absorption layer are matched with each other, so that the absorption speed of the absorbent article is effectively improved.

According to some preferred embodiments, the aperture of the through holes 31 is 0.5-1.5 mm, and the interval distance between two adjacent through holes 31 is 0.5-1.5 mm.

According to some preferred embodiments, for example as shown in fig. 2 and 3, the new absorbent article further comprises an annular absorbent layer, which is arranged between the top sheet 1 and the upper absorbent layer 2; the annular absorbent layer comprises a plurality of annular absorbent regions 6 having an arch structure 61, wherein an inner ring side 62 of each annular absorbent region 6 is connected with the upper absorbent layer 2 (upper surface of the upper absorbent layer), an outer ring side 63 of each annular absorbent region 6 is not connected with the upper absorbent layer 2, and an arch structure 61 is arranged between the inner ring side 62 and the outer ring side 63 of the annular absorbent region 6; the center points of the plurality of annular absorption areas 6 are the same, and the distance between the outer ring side 63 of each annular absorption area 6 and the center point is gradually increased from the center point outwards; for example, as shown in fig. 4, in the present utility model, the arch 61 is also disposed in a ring shape as a whole.

In the utility model, the novel absorbing article is preferably provided with the plurality of annular absorbing areas with arch structures, so that the novel absorbing article is in a fluffy state and is provided with gaps, a flow guide structure can be formed between the two arch structures, and the arch structures are beneficial to increasing the fluffiness, so that the absorbing speed of the novel absorbing article can be improved, the novel absorbing article has good air permeability, and the comfort level of a user is improved; in addition, the arched structure can also effectively prevent the lateral diffusion of the absorbed liquid, so that the lateral diffusion of the absorbent article is small, and the lateral leakage prevention is facilitated.

According to some preferred embodiments, the arches 61 of the annular absorbing zone 6 are of the same height, for example as shown in fig. 2; alternatively, the height of the arch-shaped structures 61 of the annular absorbent region 6 increases sequentially from the center point outwards, for example, as shown in fig. 3; in the present utility model, the outer ring side 63 of the annular absorption zone 6 is higher than the inner ring side 62, and the height of the arch 61 refers to the vertical distance between the highest point of the arch 61 and the horizontal plane of the inner ring side 62 of the annular absorption zone 6; and/or the width of the arch 61 of the annular absorbent region 6 is the same; alternatively, the width of the arch 61 of the annular absorbent region 6 increases in sequence, from the center point outwards, for example as shown in fig. 3 and 4; the width and height of the arch structure are not particularly limited in the present utility model, and those skilled in the art can design the arch structure as desired.

According to some preferred embodiments, the annular absorption zone 6 is annular or elliptical in shape.

According to some more preferred embodiments, for example, as shown in fig. 3 and fig. 4, the height of the arch structure 61 of the annular absorbent region 6 increases sequentially from the center point to the outside, and the width of the arch structure 61 of the annular absorbent region 6 increases sequentially, so that the overall bulk of the novel absorbent article can be further improved, the air permeability is improved, and the lateral diffusion of the absorbed liquid can be more effectively prevented, so that the lateral diffusion of the absorbent article is small, the liquid can be more effectively blocked and diffused to two sides, the side leakage is more effectively avoided, and the side leakage preventing effect is improved. The width of the inner ring side, the outer ring side and the arch structure of the annular absorption zone is not particularly limited in the present utility model, and can be designed by those skilled in the art as required.

According to some preferred embodiments, the width of the inner ring side 62 of the annular absorbent region 6 connected to the upper absorbent layer 2 is 1-2 mm, the width of the arch 61 is 2-5 mm, preferably the width of the inner ring side 62 of the annular absorbent region 6 is the same as the width of the outer ring side 63, the width of the inner ring side 62 of each of the annular absorbent regions 6 may be the same or different, preferably the same, and when the width of the arch 61 of the annular absorbent region 6 increases sequentially from the center point outwards, it is preferred that the width of the arch 61 is distributed in the range of 2-5 mm; and/or the annular absorption area 6 is made of wet-process super absorbent resin absorbent paper.

According to some preferred embodiments, in two adjacent annular absorption zones 6, the outer annular side 63 of one of the annular absorption zones 6 is above the inner annular side 62 of the other annular absorption zone 6, and preferably the outer annular side 63 of one annular absorption zone 6 is not in contact with the arch 61 of the other annular absorption zone 6.

According to some preferred embodiments, the annular absorbent layer is located in a central region of the upper absorbent layer 2, the width of the annular absorbent layer being smaller than the width of the upper absorbent layer, and the length of the annular absorbent layer being smaller than the length of the upper absorbent layer. The size of the annular absorption zone is not particularly limited, and a person skilled in the art can design the annular absorption zone according to the needs, and preferably, the overall width of the annular absorption layer is slightly smaller than the width of the upper absorption layer, and the overall length of the annular absorption layer is 0.7-0.8 times of the length of the upper absorption layer 2.

According to some preferred embodiments, the surface layer 1 is a hot air nonwoven fabric, a spun-bonded nonwoven fabric, a pure cotton nonwoven fabric, or a bamboo fiber or other nonwoven fabric, and preferably, the surface layer 1 is a fine denier hot air nonwoven fabric (soft fine denier hot air nonwoven fabric), and the fiber denier used is 0.5-1.5 denier.

According to some preferred embodiments, the bottom layer 4 is a breathable PE bottom film layer (also denoted PE breathable bottom film layer).

It is specifically noted that in the present utility model, the layers included in the novel absorbent article may be bonded together in sequence, for example, by means of a glue-sprayed bond, that is, by means of a hot melt adhesive, and the peeled-off state between the layers shown in fig. 1, 2 and 3 is merely for clarity of illustration of the structure of the layers; in the utility model, the wet-process super absorbent resin absorbent paper is formed by uniformly distributing super absorbent resin between two raw paper layers through the existing wet papermaking process; in the present utility model, the wet papermaking process may be, for example, a wet papermaking process disclosed in chinese patent application CN 201710966882.0; the gram weight of the wet-process super absorbent resin absorbent paper can be 30-300 g/m ² Preferably 70 to 150g/m ² 。

The utility model is further illustrated below with reference to examples. These examples are merely illustrative of preferred embodiments of the present utility model and the scope of the present utility model should not be construed as being limited to these examples only.

Example 1

The novel absorbent article sequentially comprises a surface layer, an upper absorption layer, a lower absorption layer and a bottom layer from top to bottom; the surface layer is a hot air non-woven fabric, and the bottom layer is a breathable PE bottom film layer; the upper absorption layer is a wet-process super absorbent resin absorbent paper layer, and the lower absorption layer is a polyurethane foam cotton layer; the polyurethane foam cotton layer is internally provided with a plurality of through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer; the aperture of the through holes is 1mm, and the interval distance between the two through holes is 1mm; the upper surface of the polyurethane foam cotton layer is a concave surface with a plurality of V shapes, a plurality of hollow absorption spaces are formed by bonding the upper absorption layer and the lower absorption layer together, the depth of each V shape is 15% of the whole thickness of the polyurethane foam cotton layer, and the width of the uppermost part of each V shape is 5mm.

Example 2

Example 2 is substantially the same as example 1 except that: the upper absorption layer and the lower absorption layer are not needed, and the absorption layer is adopted to replace the upper absorption layer and the lower absorption layer; namely, the novel absorbent article in the embodiment comprises a surface layer, an absorption layer and a bottom layer from top to bottom in sequence; the surface layer is hot air non-woven fabric, the bottom layer is a breathable PE (polyethylene) bottom film layer, and the absorption layer is a mixed layer structure formed by super absorbent resin and fluff pulp.

Example 3

Example 3 is substantially the same as example 1 except that:

the novel absorbent article further comprises an annular absorbent layer disposed between the top sheet and the upper absorbent layer; the annular absorption layer is positioned in the central area of the upper absorption layer, the width of the annular absorption layer is smaller than that of the upper absorption layer, and the length of the annular absorption layer is smaller than that of the upper absorption layer; the annular absorption layers comprise a plurality of oval-shaped annular absorption areas with arch structures, the annular absorption areas are made of wet-process super absorbent resin absorbent paper, the inner ring side of each annular absorption area is connected with the upper absorption layer, the outer ring side of each annular absorption area is not connected with the upper absorption layer, and an arch structure is arranged between the inner ring side and the outer ring side of each annular absorption area; the central points of the annular absorption areas are the same, the distance between the outer ring side of each annular absorption area and the central point is gradually increased from the central point to the outside, the widths of the arch structures of the annular absorption areas are the same, the heights of the arch structures of the annular absorption areas are the same, and in two adjacent annular absorption areas, the outer ring side of one annular absorption area is above the inner ring side of the other annular absorption area, and the outer ring side of one annular absorption area is not in contact with the arch structure of the other annular absorption area.

Example 4

Example 4 is substantially the same as example 1 except that:

the novel absorbent article further comprises an annular absorbent layer disposed between the top sheet and the upper absorbent layer; the annular absorption layer is positioned in the central area of the upper absorption layer, the width of the annular absorption layer is smaller than that of the upper absorption layer, and the length of the annular absorption layer is smaller than that of the upper absorption layer; the annular absorption layers comprise a plurality of oval-shaped annular absorption areas with arch structures, the annular absorption areas are made of wet-process super absorbent resin absorbent paper, the inner ring side of each annular absorption area is connected with the upper absorption layer, the outer ring side of each annular absorption area is not connected with the upper absorption layer, and an arch structure is arranged between the inner ring side and the outer ring side of each annular absorption area; the central points of the annular absorption areas are the same, the distance between the outer ring side of each annular absorption area and the central point is gradually increased from the central point to the outside, the width of the arch structure of each annular absorption area is gradually increased from the central point to the outside, the height of the arch structure of each annular absorption area is gradually increased, and in two adjacent annular absorption areas, the outer ring side of one annular absorption area is above the inner ring side of the other annular absorption area, and the outer ring side of one annular absorption area is not in contact with the arch structure of the other annular absorption area.

The novel absorbent articles of examples 1 to 4 (absorbent article width: 8 cm) were tested for their absorption performance, dryness and lateral diffusion properties, and the results are shown in Table 1.

The testing method comprises the following steps: taking animal blood for 2 times, each time of 5mL, and recording the time of finishing each time of absorption as the absorption speed in s at intervals of 10 minutes for 2 times; after 5mL of animal blood is absorbed by the novel absorption article for 5min, 10g of filter paper is pressed by a weight of 1.2kg and placed on the novel absorption article for 1min, and the gram weight added by the filter paper is measured as reverse osmosis result in g; the transverse diffusion length is 10mL of animal blood, and is recorded on the upper surface of the absorbent article after 1min, and the unit is cm.

TABLE 1

As can be seen from the data in table 1, the animal blood of examples 1 and 3 to 4 has a fast absorption rate, very good dryness, small lateral diffusion, and a lateral leakage preventing effect, and the lateral diffusion length of examples 3 to 4 is significantly smaller than that of other examples; in the utility model, the smaller the transverse diffusion length is, the smaller the possibility of side leakage is, which shows that the side leakage prevention effect is better.

The utility model is not described in detail in the area of the technical field, which is skilled in the art, can be designed according to the need.

It is specifically noted that, in the present utility model, the azimuth or positional relationship indicated by the terms "upper", "lower", "left", "right", etc., are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the components referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model; the specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A novel absorbent article, characterized in that:

the novel absorption article sequentially comprises a surface layer, an upper absorption layer, a lower absorption layer and a bottom layer from top to bottom;

the upper absorption layer is a wet-process super absorbent resin absorbent paper layer, and the lower absorption layer is a polyurethane foam cotton layer;

the polyurethane foam cotton layer is internally provided with a plurality of through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer;

the upper surface of the polyurethane foam cotton layer is provided with a plurality of V-shaped concave surfaces.

2. The novel absorbent article of claim 1, wherein:

the aperture of the through holes is 0.5-1.5 mm, and the interval distance between two adjacent through holes is 0.5-1.5 mm.

3. The novel absorbent article of claim 1, wherein:

the novel absorbent article further comprises an annular absorbent layer disposed between the top sheet and the upper absorbent layer;

the annular absorption layers comprise a plurality of annular absorption areas with arch structures, the inner ring side of each annular absorption area is connected with the upper absorption layer, the outer ring side of each annular absorption area is not connected with the upper absorption layer, and the arch structures are arranged between the inner ring side and the outer ring side of each annular absorption area;

the central points of the plurality of annular absorption areas are the same, and the distance between the outer ring side of each annular absorption area and the central point is gradually increased from the central point outwards.

4. A novel absorbent article according to claim 3, wherein:

the heights of the arch structures of the annular absorption areas are the same or outwards from the central point, and the heights of the arch structures of the annular absorption areas are sequentially increased;

the widths of the arch structures of the annular absorption areas are the same or outwards from the central point, and the widths of the arch structures of the annular absorption areas are sequentially increased; and/or

The annular absorption area is annular or elliptical.

5. A novel absorbent article according to claim 3, wherein:

the width of the inner ring side of the annular absorption area connected with the upper absorption layer is 1-2 mm, and the width of the arch structure is 2-5 mm.

6. A novel absorbent article according to claim 3, wherein:

the annular absorption area is made of super absorbent resin absorbent paper made by a wet method.

7. A novel absorbent article according to claim 3, wherein:

in the adjacent two annular absorption zones, the outer annular side of one of the annular absorption zones is above the inner annular side of the other annular absorption zone.

8. A novel absorbent article according to claim 3, wherein:

the annular absorption layer is positioned in the central area of the upper absorption layer, the width of the annular absorption layer is smaller than that of the upper absorption layer, and the length of the annular absorption layer is smaller than that of the upper absorption layer.

9. The novel absorbent article according to any one of claims 1 to 8, characterized in that:

the surface layer is hot air non-woven fabric, spun-bonded non-woven fabric or pure cotton non-woven fabric.

10. The novel absorbent article according to any one of claims 1 to 8, characterized in that:

the bottom layer is a breathable PE bottom film layer.

Images