CN219148226U - Concentrated absorption type absorbing article - Google Patents

Abstract

The utility model provides a concentrated absorption type absorbent article, which sequentially comprises a surface layer, an upper absorption layer, a concentrated absorption layer, a lower absorption layer and a bottom layer from top to bottom; the upper absorption layer is a polyurethane foam cotton layer, and vertical through holes and bending through holes penetrating through the polyurethane foam cotton layer are formed in the polyurethane foam cotton layer; the vertical through holes are positioned at the middle positions of the polyurethane foam cotton layers in the width direction, and the bending through holes are positioned at the two sides of the polyurethane foam cotton layers in the width direction; the bending through holes are bent towards the middle position of the width direction of the polyurethane foam cotton layer, and the bending through holes sequentially comprise vertical hole sections and inclined hole sections from top to bottom. The concentrated absorption type absorbent article has the advantages of high absorption speed, good dryness, strong concentrated absorption and the like.

Description

Concentrated absorption type absorbing article

Technical Field

The utility model relates to the technical field of physiological sanitary products, in particular to a concentrated absorption type absorbing product.

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 sanitary absorbent articles are continuously improved, however, the existing absorbent articles still have the problems that the absorption speed is low, the liquid cannot be absorbed in a concentrated way or the dry performance is to be improved. Therefore, various large sanitary absorbent article companies nationwide have made improvements in sanitary absorbent articles through various studies.

In view of the above shortcomings, it is highly desirable to provide a concentrated absorbent article.

Disclosure of Invention

In order to solve one or more technical problems of the conventional absorbent articles, the present utility model provides a concentrated absorbent type absorbent article. The concentrated absorption type absorbent article has the advantages of high absorption speed, good dryness, strong concentrated absorption and the like.

The utility model provides a concentrated absorption type absorbent article, which sequentially comprises a surface layer, an upper absorption layer, a concentrated absorption layer, a lower absorption layer and a bottom layer from top to bottom; the upper absorption layer is a polyurethane foam cotton layer, and a plurality of vertical through holes and bending through holes penetrating through the polyurethane foam cotton layer are formed in the polyurethane foam cotton layer; the vertical through holes are positioned at the middle positions of the polyurethane foam cotton layers in the width direction, and the bending through holes are positioned at the two sides of the polyurethane foam cotton layers in the width direction; the bending through holes are bent towards the middle position of the width direction of the polyurethane foam cotton layer, and the bending through holes sequentially comprise vertical hole sections and inclined hole sections from top to bottom.

Preferably, the width of the upper absorbent layer is not greater than the width of the lower absorbent layer, and the length of the upper absorbent layer is not greater than the length of the lower absorbent layer; the width of the concentrated absorbing layer is smaller than that of the upper absorbing layer, and the length of the concentrated absorbing layer is smaller than that of the upper absorbing layer.

Preferably, the vertical bore section and the inclined bore section have an angle α therebetween, and 90 ° < α < 150 °.

Preferably, the concentrated absorbent layer includes a nonwoven fabric layer and a super absorbent resin layer wrapped in the nonwoven fabric layer.

Preferably, the non-woven fabric layer is a PP wood pulp spunlaced non-woven fabric layer.

Preferably, the lower absorbent layer is a wet-process super absorbent resin absorbent paper.

Preferably, the apertures of the vertical through hole, the vertical hole section and the inclined hole section of the bending through hole are all 1-2 mm.

Preferably, the concentrated absorbent article further comprises a leakage preventing member disposed between the top sheet and the upper absorbent layer; the two leakage-proof parts are symmetrically arranged left and right; the leakage-proof component is formed by sandwiching a polyurethane foam cotton layer by wet-process super absorbent resin absorbent paper, wherein the sandwiching angle is beta, beta is more than 0 degrees and less than or equal to 45 degrees, and a plurality of liquid through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are arranged in the polyurethane foam cotton layer.

Preferably, the polyurethane foam cotton layer in the leakage-proof component is of a three-dimensional right trapezoid structure, and the included angle between the inclined plane and the bottom surface of the three-dimensional right trapezoid structure is the same as the clamping angle beta.

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 concentrated absorption type absorption article adopts polyurethane foam cotton, and is provided with special through holes, namely vertical through holes and bending through holes penetrating through the polyurethane foam cotton layer, wherein the vertical through holes and the bending through holes can concentrate liquid to the central part (middle position), and the liquid can be quickly transferred to the concentrated absorption layer.

(2) In some preferred embodiments of the present utility model, the concentrated absorbent layer includes a non-woven fabric layer and a super absorbent resin layer wrapped in the non-woven fabric layer, and is matched with the upper absorbent layer (polyurethane foam cotton layer), so that the concentrated absorbent layer can absorb liquid in a concentrated manner, and is not spread at the upper absorbent layer, side leakage is effectively avoided, dryness of the absorbent article is ensured, and the lower absorbent layer is made of wet super absorbent resin absorbent paper, so that the absorption capacity is further ensured, and dryness and absorbability of the absorbent article are ensured.

(3) In some preferred embodiments of the utility model, the leakage-proof component is arranged, the leakage-proof component is a structure of a polyurethane foam cotton layer sandwiched by water absorbent paper of high water absorbent resin of a wet method which is bilaterally symmetrical, and a plurality of liquid through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are arranged in the polyurethane foam cotton layer, so that the leakage-proof component has strong liquid absorption capacity, is beneficial to liquid infiltration, is non-porous on the side surface of the leakage-proof component, can play a role in blocking flow, effectively prevents the lateral diffusion of absorbed liquid, has an sandwiching angle of beta, and is smaller than or equal to 45 degrees, the leakage-proof component always presents a smooth inclined plane near the middle position when the liquid absorption expands, which is beneficial to the concentrated absorption of the liquid in the central part of the absorbent article to a certain extent, and can quickly conduct the liquid to the absorbent layer; compared with the leakage-proof component formed by adopting relatively fixed multi-layer super absorbent resin absorbent paper with gradually increased width from top to bottom in the prior art, the leakage-proof component has stronger overall liquid absorption expansion capacity, can effectively prevent the lateral diffusion of absorbed liquid, ensures that the lateral diffusion of an absorbing article is smaller, can effectively block the liquid from diffusing to two sides, effectively avoids side leakage, and improves the side leakage prevention effect; the anti-leakage component can conveniently adjust the clamping angle of the anti-leakage component according to the arrangement position and the thickness of the polyurethane foam cotton layer, the bilateral symmetry angle is more than 0 degrees and less than or equal to 45 degrees, the transverse diffusion area is small, and the side leakage can be effectively prevented.

(4) The concentrated absorption type absorbent article has the advantages of high absorption speed, good dryness, strong concentrated absorption 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 concentrated absorbent article in accordance with some embodiments of the present utility model.

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

In the figure: 1: a surface layer; 2: an upper absorbent layer; 21: a vertical through hole; 22: bending the through hole; 221: a vertical bore section; 222: an inclined bore section; 3: a concentrated absorption layer; 31: a non-woven fabric layer; 32: a super absorbent resin layer; 4: a lower absorption layer; 5: a bottom layer; 6: a leakage preventing member; 61: wet making high water absorption resin water absorption paper; 62: a polyurethane foam cotton layer; 621: and a liquid through hole.

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 concentrated absorbent article, for example, as shown in fig. 1 and 2, fig. 1 is a schematic structural view of a concentrated absorbent article according to some embodiments of the present utility model; FIG. 2 is a schematic structural view of a concentrated absorbent article in accordance with further embodiments of the present utility model.

The present utility model provides a concentrated absorbent type absorbent article, for example, as shown in fig. 1, comprising a top sheet 1 (also referred to as a liquid-permeable top sheet), an upper absorbent layer 2, a concentrated absorbent layer 3, a lower absorbent layer 4, and a bottom sheet 5 (also referred to as a breathable bottom sheet) in this order from top to bottom; the upper absorption layer 2 is a polyurethane foam cotton layer, and a plurality of vertical through holes 21 and bending through holes 22 penetrating through the polyurethane foam cotton layer are formed in the polyurethane foam cotton layer; in the present utility model, the vertical through holes 21 and the bent through holes 22 penetrate the upper and lower surfaces of the polyurethane foam layer; the polyurethane foam cotton layer is made of polyurethane foam cotton made of the prior known material; in the present utility model, the vertical through holes 21 are vertically provided in the polyurethane foam layer; in the present utility model, "plurality" means two or more; the vertical through holes 21 are located at middle positions in the width direction of the polyurethane foam cotton layer, preferably the vertical through holes 21 are uniformly distributed at middle positions in the width direction of the polyurethane foam cotton layer, the bending through holes 22 are located at two side positions in the width direction of the polyurethane foam cotton layer, preferably the bending through holes 22 are uniformly distributed at two side positions in the width direction of the polyurethane foam cotton layer; in the present utility model, it is preferable that the width of the middle position where the vertical through hole 21 is provided is 0.1 to 0.3 times the width of the polyurethane foam cotton layer (upper absorbent layer 2), the bending through hole 22 includes a vertical hole section 221 and an inclined hole section 222 in this order from top to bottom, and the inclined hole section 222 is bent toward the middle position in the width direction of the polyurethane foam cotton layer; the concentrated absorbent article of the present utility model may be, for example, a diaper, a pull-up diaper, a sanitary napkin, a pants-type sanitary napkin, or an incontinence napkin, and is preferably a sanitary napkin.

The upper absorption layer of the concentrated absorption type absorption article adopts polyurethane foam cotton, and is provided with special through holes, namely vertical through holes and bending through holes penetrating through the polyurethane foam cotton layer, wherein the vertical through holes and the bending through holes can concentrate liquid to the central part (middle position), and the liquid can be quickly transferred to the concentrated absorption layer.

According to some preferred embodiments, the width of the upper absorbent layer 2 is not greater than the width of the lower absorbent layer 4, and the length of the upper absorbent layer 2 is not greater than the length of the lower absorbent layer 4; the width of the concentrated absorbent layer 3 is smaller than the width of the upper absorbent layer 2, and the length of the concentrated absorbent layer 3 is smaller than the length of the upper absorbent layer 2.

According to some preferred embodiments, the upper absorbent layer 2 and/or the lower absorbent layer 4 is in the form of an elongated shape having a width of 5-8 cm and the length of the second absorbent layer is 20-25 cm.

According to some preferred embodiments, the concentrated absorbent layer 3 is in the form of an elongated shape having a width of 3-4 cm and a length of 6-20 cm.

According to some preferred embodiments, the vertical bore section 221 and the inclined bore section 222 have an angle α therebetween, and 90 ° < α < 150 °, preferably 120 ° < α < 150 °, which is more advantageous for concentrating the liquid to the central portion.

According to some preferred embodiments, the concentrated absorbent layer 3 comprises a nonwoven fabric layer 31 and a super absorbent resin layer 32 wrapped in the nonwoven fabric layer 31; the non-woven fabric layer is made of the non-woven fabric made of the existing known materials, the type of the non-woven fabric is not particularly limited, and the non-woven fabric layer is of a conventional type.

According to some preferred embodiments, the nonwoven layer 31 is a PP wood pulp spunlaced nonwoven layer; the PP wood pulp spunlaced non-woven fabric layer is made of the prior known material PP wood pulp spunlaced non-woven fabric.

According to some preferred embodiments, the lower absorbent layer 4 is a wet-laid super absorbent resin absorbent paper.

According to some more preferred embodiments, the concentrated absorbent layer 3 comprises a non-woven fabric layer 31 and a super absorbent resin layer 32 wrapped in the non-woven fabric layer 31, and the lower absorbent layer 4 is wet-made super absorbent resin absorbent paper; the concentrated absorbing layer comprises a non-woven fabric layer and a super absorbent resin layer wrapped in the non-woven fabric layer, so that the concentrated absorbing layer can be matched with an upper absorbing layer (polyurethane foam cotton layer), can intensively absorb liquid, is not diffused at the upper absorbing layer, effectively avoids side leakage, ensures dryness of an absorbing article, and is preferably made of wet super absorbent resin absorbent paper, the absorbing capacity can be further ensured, and the dryness and the absorbability of the absorbing article are ensured.

According to some preferred embodiments, the apertures of the vertical through holes 21, the vertical hole sections 221 and the inclined hole sections 222 of the bent through holes 22 are each 1-2 mm, preferably, the spacing distance between two adjacent vertical through holes 21 may be, for example, 1-2 mm, preferably, the spacing distance between the inclined hole sections 222 of two adjacent bent through holes 22 may be, for example, 1-2 mm; the length of the inclined hole section 222 may be, for example, 1 to 2 times the length of the vertical hole section 221.

According to some preferred embodiments, for example, as shown in fig. 2, the concentrated absorbent article further comprises a leakage preventing member 6 arranged between the top sheet 1 and the upper absorbent layer 2; two leakage-proof parts 6 are symmetrically arranged left and right; in the present utility model, the leakage preventing members 6 are symmetrically arranged in the width direction of the concentrated absorbent product; the leakage preventing component 6 is formed by sandwiching a polyurethane foam cotton layer 62 between wet-process super absorbent resin absorbent paper 61, and the sandwiching angle is beta, and is more than 0 DEG and less than or equal to 45 DEG, in other words, the leakage preventing component 6 comprises wet-process super absorbent resin absorbent paper 61 and polyurethane foam cotton layer 62 sandwiched in wet-process super absorbent resin absorbent paper 61, and the sandwiching angle is beta, and more than 0 DEG and less than or equal to 45 DEG; in the present utility model, the wet-process super absorbent resin absorbent paper 61 has an open end when sandwiching the polyurethane foam cotton layer 62, the open end being away (away from) the middle position (center portion) in the width direction of the concentrated absorbent article; a plurality of (two or more) liquid through holes 621 penetrating the upper and lower surfaces of the polyurethane foam cotton layer 62 are arranged in the polyurethane foam cotton layer 62, and the liquid through holes are vertically and vertically arranged in the polyurethane foam cotton layer 62; specifically, for example, the leakage preventing member 6 is formed by sandwiching a polyurethane foam layer 62 with a layer of wet-process super absorbent resin absorbent paper 61, and a plurality of liquid passing holes 621 penetrating the upper and lower surfaces of the polyurethane foam layer 62 are provided in the polyurethane foam layer 62; in the present utility model, the polyurethane foam layer 62 is polyurethane foam using a known material; the shape, number and size of the liquid through holes 621 are not particularly limited, and can be set by those skilled in the art according to the needs; preferably, the plurality of liquid through holes are uniformly distributed in the polyurethane foam layer, the aperture of the liquid through hole 621 may be, for example, 1-2 mm, the distance between two adjacent liquid through holes 621 may be, for example, 1-2 mm, and the liquid through hole 621 may be, for example, a circular liquid through hole, a square liquid through hole or an oval liquid through hole, and preferably, the liquid through hole is a circular liquid through hole.

The utility model is preferably provided with the leakage-proof component, the leakage-proof component is a structure of a polyurethane foam cotton layer sandwiched by water-absorbing paper made of high water-absorbing resin by a bilateral symmetry wet method, and a plurality of liquid through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are arranged in the polyurethane foam cotton layer, so that the leakage-proof component has strong liquid absorption capacity, is favorable for liquid infiltration, is non-porous on the side surface of the leakage-proof component, can play a role in blocking flow, effectively prevents the transverse diffusion of absorbed liquid, has an angle beta of less than or equal to 45 degrees, and always presents a smooth inclined plane near the middle position when the liquid absorption expansion is carried out, which is favorable for the concentrated absorption of the liquid at the central part of an absorbent article to a certain extent, and can quickly conduct the liquid to the absorbent layer; compared with the leakage-proof component formed by adopting relatively fixed multi-layer super absorbent resin absorbent paper with gradually increased width from top to bottom in the prior art, the leakage-proof component has stronger overall liquid absorption expansion capacity, can effectively prevent the lateral diffusion of absorbed liquid, ensures that the lateral diffusion of an absorbing article is smaller, can effectively block the liquid from diffusing to two sides, effectively avoids side leakage, and improves the side leakage prevention effect; the anti-leakage component can conveniently adjust the clamping angle of the anti-leakage component according to the arrangement position and the thickness of the polyurethane foam cotton layer, the bilateral symmetry angle is more than 0 degrees and less than or equal to 45 degrees, the transverse diffusion area is small, and the side leakage can be effectively prevented.

According to some preferred embodiments, 15 ° < β+.ltoreq.45°.

According to some preferred embodiments, the polyurethane foam layer 62 in the leakage preventing component 6 is a three-dimensional right trapezoid structure, and the included angle between the inclined plane and the bottom surface of the three-dimensional right trapezoid structure is the same as the clamping angle β; the included angle between the inclined plane and the bottom surface of the three-dimensional right trapezoid structure is the same as the clamping angle beta, the three-dimensional right trapezoid structure and the wet method are better in fit, stable in structure and not easy to deform, and as the whole polyurethane foam cotton layer is fully fitted with the wet method high water absorption resin water absorption paper, the blank area of the polyurethane foam cotton layer does not exist, the liquid absorption performance and the liquid absorption expansion capacity of the polyurethane foam cotton layer can be fully utilized, the liquid infiltration is facilitated, and the lateral diffusion of absorbed liquid is effectively prevented.

According to some preferred embodiments, the minimum gap distance between the two leakage preventing members 6 is 0.6 to 1 times the width of the concentrated absorbent layer 3, which is also advantageous in that the liquid is concentrated and absorbed in the central portion of the concentrated absorbent article; the left edge portion of one of the leakage preventing members 6 is flush with the left edge portion of the upper absorbent layer 2, and the right edge portion of the other leakage preventing member 6 is flush with the right edge portion of the upper absorbent 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 5 is a breathable PE bottom film layer (also denoted PE breathable bottom film layer).

In particular, in the present utility model, the layers included in the concentrated absorbent article may be bonded together by, for example, a glue-spraying layer, that is, by a hot melt adhesive, and the peeled state between the layers shown in fig. 1 and 2 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 to 300g/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

A concentrated absorption type absorbent article comprises a surface layer, an upper absorption layer, a concentrated 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 width of the upper absorption layer is equal to that of the lower absorption layer, the width is 8cm, the length of the upper absorption layer is equal to that of the lower absorption layer, and the length is 25cm; the width of the concentrated absorption layer is 3cm, and the length of the concentrated absorption layer is 20cm; the upper absorption layer is a polyurethane foam cotton layer, and a plurality of vertical through holes and bending through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are formed in the polyurethane foam cotton layer; the vertical through holes are positioned at the middle position of the polyurethane foam cotton layer in the width direction (the width of the middle position provided with the vertical through holes is 0.15 times of the width of the polyurethane foam cotton layer), and the bending through holes are positioned at the two sides of the polyurethane foam cotton layer in the width direction; the bending through hole is bent towards the middle position of the width direction of the polyurethane foam cotton layer, and comprises a vertical hole section and an inclined hole section from top to bottom in sequence; the apertures of the vertical through holes, the vertical hole sections and the inclined hole sections of the bending through holes are all 1mm, the spacing distance between two adjacent vertical through holes is 1mm, and the spacing distance between the inclined hole sections of two adjacent bending through holes is 1mm; an included angle alpha is formed between the vertical hole section and the inclined hole section, and alpha is 135 degrees; the concentrated absorption layer comprises a non-woven fabric layer and a super absorbent resin layer wrapped in the non-woven fabric layer; the lower absorption layer is a layer of wet-process super absorbent resin absorbent paper.

Example 2

Example 2 is substantially the same as example 1 except that: without an upper absorbent layer, the other components are the same; namely, the absorbent article in the embodiment comprises a surface layer, a concentrated absorbent layer, a lower absorbent layer and a bottom layer from top to bottom in sequence; the surface layer is a hot air non-woven fabric, and the bottom layer is a breathable PE bottom film layer; the width of the lower absorption layer is 8cm, and the length of the lower absorption layer is 25cm; the width of the concentrated absorption layer is 3cm, and the length of the concentrated absorption layer is 20cm; the concentrated absorption layer comprises a non-woven fabric layer and a super absorbent resin layer wrapped in the non-woven fabric layer; the lower absorption layer is a layer of wet-process super absorbent resin absorbent paper.

Example 3

Example 3 is substantially the same as example 1 except that: no concentrated absorption layer exists, and other components are the same; namely, the absorbent article in the embodiment comprises a surface layer, an upper absorption layer, a lower absorption layer and a bottom layer from top to bottom in sequence; the surface layer is a hot air non-woven fabric, and the bottom layer is a breathable PE bottom film layer; the width of the upper absorption layer is equal to that of the lower absorption layer, the width is 8cm, the length of the upper absorption layer is equal to that of the lower absorption layer, and the length is 25cm; the upper absorption layer is a polyurethane foam cotton layer, and a plurality of vertical through holes and bending through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are formed in the polyurethane foam cotton layer; the vertical through holes are positioned at the middle position of the polyurethane foam cotton layer in the width direction (the width of the middle position provided with the vertical through holes is 0.15 times of the width of the polyurethane foam cotton layer), and the bending through holes are positioned at the two sides of the polyurethane foam cotton layer in the width direction; the bending through hole is bent towards the middle position of the width direction of the polyurethane foam cotton layer, and comprises a vertical hole section and an inclined hole section from top to bottom in sequence; the apertures of the vertical through holes, the vertical hole sections and the inclined hole sections of the bending through holes are all 1mm, the spacing distance between two adjacent vertical through holes is 1mm, and the spacing distance between the inclined hole sections of two adjacent bending through holes is 1mm; an included angle alpha is formed between the vertical hole section and the inclined hole section, and alpha is 135 degrees; the lower absorption layer is a layer of wet-process super absorbent resin absorbent paper.

Example 4

Example 4 is substantially the same as example 1 except that: the upper absorption layer, the concentrated absorption layer and the lower absorption layer are not needed, and the absorption layer is adopted to replace the upper absorption layer, the concentrated absorption layer and the lower absorption layer; namely, the 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 5

Example 5 is substantially the same as example 1 except that:

the concentrated absorbent article further includes a leakage prevention member disposed between the top sheet and the upper absorbent layer; the two leakage-proof parts are symmetrically arranged left and right; the leakage-proof component is composed of a polyurethane foam cotton layer with a right trapezoid structure formed by sandwiching a layer of wet super absorbent resin absorbent paper, the sandwiching angle is 45 degrees, the included angle between the inclined plane and the bottom surface of the three-dimensional right trapezoid structure is 45 degrees, the wet super absorbent resin absorbent paper is provided with an open end when sandwiching the polyurethane foam cotton layer, and the open end is far away from the middle position of the width direction of the concentrated absorption type absorbent article; a plurality of liquid through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are uniformly formed in the polyurethane foam cotton layer in the leakage-proof component, the aperture of each liquid through hole is 1mm, and the interval distance between the two liquid through holes is 1mm; the minimum gap distance between the two leakage preventing members is 0.8 times the width of the concentrated absorbent layer, one of the left side edge parts of the leakage preventing members is flush with the left side edge part of the upper absorbent layer, and the other of the right side edge parts of the leakage preventing members is flush with the right side edge part of the upper absorbent layer.

Example 6

Example 6 is substantially the same as example 1 except that:

the concentrated absorbent article further includes a leakage prevention member disposed between the top sheet and the upper absorbent layer; the two leakage-proof parts are symmetrically arranged left and right; the leakage prevention component is composed of three layers of wet-process high-absorbent resin absorbent paper with different widths, the width of the leakage prevention component is gradually increased from top to bottom, one leakage prevention component is arranged on the left side edge of the high-absorbent resin absorbent paper by the three layers of wet-process high-absorbent resin absorbent paper and is arranged on the left side edge of the upper collecting layer, the other leakage prevention component is arranged on the right side edge of the high-absorbent resin absorbent paper by the three layers of wet-process high-absorbent resin absorbent paper and is arranged on the right side edge of the upper absorbing layer, and the minimum gap distance between the leakage prevention components is 0.8 times of the width of the concentrated absorbing layer.

The absorbent articles (absorbent article width: 8 cm) of examples 1 to 6 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 absorbing article for 5min, 10g of filter paper is pressed by a weight of 1.2kg and placed on the absorbing 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 5 to 6 has a fast absorption rate, very good dryness, small lateral diffusion, and a lateral leakage preventing effect, and the lateral diffusion length of example 5 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 concentrated absorbent article, characterized by:

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

the upper absorption layer is a polyurethane foam cotton layer, and a plurality of vertical through holes and bending through holes penetrating through the polyurethane foam cotton layer are formed in the polyurethane foam cotton layer;

the vertical through holes are positioned at the middle positions of the polyurethane foam cotton layers in the width direction, and the bending through holes are positioned at the two sides of the polyurethane foam cotton layers in the width direction;

the bending through holes are bent towards the middle position of the width direction of the polyurethane foam cotton layer, and the bending through holes sequentially comprise vertical hole sections and inclined hole sections from top to bottom.

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

the width of the upper absorption layer is not greater than the width of the lower absorption layer, and the length of the upper absorption layer is not greater than the length of the lower absorption layer;

the width of the concentrated absorbing layer is smaller than that of the upper absorbing layer, and the length of the concentrated absorbing layer is smaller than that of the upper absorbing layer.

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

an included angle alpha is formed between the vertical hole section and the inclined hole section, and the included angle alpha is more than 90 degrees and less than 150 degrees.

4. The concentrated absorbent article of claim 1, wherein:

the concentrated absorption layer comprises a non-woven fabric layer and a super absorbent resin layer wrapped in the non-woven fabric layer.

5. The concentrated absorbent article of claim 4, wherein:

the non-woven fabric layer is a PP wood pulp spunlaced non-woven fabric layer.

6. The concentrated absorbent article of claim 1, wherein:

the lower absorption layer is made of super absorbent resin absorbent paper by a wet method.

7. The concentrated absorbent article of claim 1, wherein:

the apertures of the vertical through hole, the vertical hole section of the bending through hole and the inclined hole section are all 1-2 mm.

8. The concentrated absorbent article of any one of claims 1 to 7, wherein:

the concentrated absorbent article further includes a leakage prevention member disposed between the top sheet and the upper absorbent layer;

the two leakage-proof parts are symmetrically arranged left and right;

the leakage-proof component is formed by sandwiching a polyurethane foam cotton layer by wet-process super absorbent resin absorbent paper, wherein the sandwiching angle is beta, beta is more than 0 degrees and less than or equal to 45 degrees, and a plurality of liquid through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are arranged in the polyurethane foam cotton layer.

9. The concentrated absorbent article of claim 8, wherein:

the polyurethane foam cotton layer in the leakage-proof component is of a three-dimensional right trapezoid structure, and the included angle between the inclined plane and the bottom surface of the three-dimensional right trapezoid structure is the same as the clamping angle beta.

10. The concentrated absorbent article of any one of claims 1 to 7, wherein:

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.

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