CN213373065U

CN213373065U - Super-absorption core and sanitary towel

Info

Publication number: CN213373065U
Application number: CN202021464805.9U
Authority: CN
Inventors: 贺瑞成; 张敬
Original assignee: Beijing Beishute Science And Technology Articles Co ltd
Current assignee: Beijing Beishute Science And Technology Articles Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-06-08
Anticipated expiration: 2030-07-22

Abstract

The utility model belongs to the technical field of health supplies, a super absorption core and sanitary towel is disclosed, this super absorption core includes from the top down and stacks gradually the liquid layer that leads to that sets up, first absorbed layer and second absorbed layer, the second absorbed layer is the polymer composite bed, the length of first absorbed layer and second absorbed layer all is greater than the length that leads to the liquid layer, lead to the middle part that the liquid level is located first absorbed layer, lead to the liquid layer can absorb liquid and to peripheral water conservancy diversion, first absorbed layer and second absorbed layer can absorb and hold liquid. The utility model discloses a sanitary towel includes apical plane portion, bottom surface portion and foretell super absorption core, and the super absorption core is located between apical plane portion and the bottom surface portion. The utility model provides a super absorption core and sanitary towel, whole frivolous not only can effectively improve absorption and diffusion velocity to liquid, can also increase the absorbed dose.

Description

Super-absorption core and sanitary towel

Technical Field

The utility model belongs to the technical field of health supplies, especially, relate to a super absorbent core and sanitary towel.

Background

The sanitary towel is a sanitary article with strong absorption capacity, the main material is cotton, non-woven fabric, paper pulp or high molecular polymer and high molecular polymer composite paper formed by the composite of the above materials, the core technical part is a core body, and the absorption capacity of the core body determines the performance of the sanitary towel.

At present, the core body mostly adopts three-layer absorbent paper or five-layer composite absorbent paper, the three-layer core body is generally a gluing process and mainly comprises the combination of toilet paper and dust-free paper, and the middle part is a polymer absorbent layer, so that the absorption speed and the diffusion of the core body need to be improved. The five-layer core body generally adopts upper and lower dust-free paper and a fluffy non-woven fabric in the middle, and macromolecule water-absorbing materials are loaded on the upper and lower parts of the fluffy non-woven fabric, so that the absorption capacity of the core body is limited, and the action of the macromolecule water-absorbing materials cannot be fully exerted.

Therefore, a need exists for a super absorbent core and sanitary napkin that solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a super absorption core, its whole is frivolous, not only can effectively improve absorption and diffusion velocity to liquid, can also increase the absorbed dose.

To achieve the purpose, the utility model adopts the following technical proposal:

a super-absorption core comprises a liquid passing layer, a first absorption layer and a second absorption layer which are sequentially stacked from top to bottom, wherein the second absorption layer is a polymer composite layer, the length of the first absorption layer and the length of the second absorption layer are both larger than that of the liquid passing layer, the liquid passing layer is located in the middle of the first absorption layer, the liquid passing layer can absorb liquid and conduct flow to the periphery, and the first absorption layer and the second absorption layer can absorb and contain the liquid.

Preferably, the liquid-permeable layer is a polymer composite layer, and the grammage of the liquid-permeable layer is 40 to 100 gsm.

Preferably, the first absorption layer is a polymer composite layer, and the grammage of the first absorption layer is 40-100 gsm.

Preferably, the grammage of the second absorbent layer is from 65 to 200 gsm.

A sanitary napkin comprises a top surface portion and a bottom surface portion, and further comprises the super-absorbent core, wherein the super-absorbent core is located between the top surface portion and the bottom surface portion.

Preferably, the top surface portion is attached to the liquid permeable layer, the bottom surface portion is attached to the second absorbent layer, and the length of the bottom surface portion is longer than the length of the second absorbent layer.

Preferably, the outer edges of the top surface part and the bottom surface part are pressed together.

Preferably, the top surface portion includes a surface layer and an inner layer that are stacked, the inner layer is attached to the liquid-permeable layer, and a plurality of protrusions are provided on an outer surface of the surface layer.

Preferably, the protrusion is of a hemispherical structure.

Preferably, the inner layer is a plain weave surface layer.

The utility model has the advantages that:

the utility model provides a super-absorption core, wherein the second absorption layer is a polymer composite layer which has higher absorption performance, so that the core is light and thin; the length of first absorbed layer and second absorbed layer all is greater than the length of leading to the liquid layer, leads to the liquid layer and is located the middle part of first absorbed layer, and the liquid layer that leads to of this position can just be to liquid exhaust's position, leads to the liquid layer can absorb liquid and to peripheral water conservancy diversion, and first absorbed layer and second absorbed layer can absorb and hold liquid. The utility model provides a super absorption core, its whole is frivolous, not only can effectively improve absorption and diffusion velocity to liquid, can also increase the absorbed dose.

Drawings

Fig. 1 is a sectional view of a sanitary napkin provided in an embodiment of the present invention.

In the figure:

1. a liquid layer is led through; 2. a first absorbent layer; 3. a second absorbent layer; 4. a top surface portion; 5. a bottom surface portion;

41. a surface layer; 42. an inner layer.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts throughout, or parts having the same or similar functions. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "mounted" are to be construed broadly and can include, for example, a mounted connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediary, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not in direct contact, but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1, the present embodiment provides a super-absorbent core, which includes a liquid permeable layer 1, a first absorbing layer 2 and a second absorbing layer 3 stacked in sequence from top to bottom, the second absorbing layer 3 is a polymer composite layer, the lengths of the first absorbing layer 2 and the second absorbing layer 3 are both greater than the length of the liquid permeable layer 1, the liquid permeable layer 1 is located in the middle of the first absorbing layer 2, the liquid permeable layer 1 can absorb liquid and guide the flow to the periphery, and the first absorbing layer 2 and the second absorbing layer 3 can absorb and contain the liquid.

In the super-absorbent core provided by this embodiment, the second absorbent layer 3 is a polymer composite layer, and the polymer composite layer has a high absorption performance, so that the core is light and thin; first absorption layer 2 and second absorption layer 3's length all is greater than the length of leading to liquid layer 1, leads to liquid layer 1 to be located the middle part of first absorption layer 2, and the leading to liquid layer 1 of this position can just be to liquid exhaust's position, leads to liquid layer 1 can absorb liquid and to peripheral water conservancy diversion, and first absorption layer 2 and second absorption layer 3 can absorb and hold liquid. The super-absorption core body provided by the embodiment is light and thin as a whole, and not only can effectively improve the absorption and diffusion speed of liquid, but also can increase the absorption capacity.

Specifically, the liquid permeable layer 1 is a polymer composite layer, and the grammage of the liquid permeable layer 1 is 40-100 gsm. The liquid passing layer 1 is formed by hot-press molding of high-molecular water-absorbent resin and wood pulp, and the ratio of the high-molecular water-absorbent resin in the liquid passing layer 1 is 20-40%. The liquid permeable layer 1 is made of permeable high-molecular water-absorbent resin, and the permeable high-molecular water-absorbent resin has high liquidity and can play a good role in guiding liquid. The liquid permeable layer 1 plays a role in primary absorption and diversion of the outflowing liquid. Wherein, the high molecular water-absorbing resin and the wood pulp are both the existing materials, and are not described herein again.

Alternatively, the liquid permeable layer 1 may be made of a through-air nonwoven fabric, and fibers of the through-air nonwoven fabric are longitudinally carded and arranged, so that the liquid can be diffused in the length direction and guided downwards in the layer.

Specifically, the first absorption layer 2 is a polymer composite layer, and the grammage of the first absorption layer 2 is 40-100 gsm. The first absorption layer 2 is formed by hot-press molding of high-molecular water-absorbent resin and wood pulp, and the ratio of the high-molecular water-absorbent resin in the first absorption layer 2 is 20-40%. The first absorption layer 2 is made of absorption type high molecular water-absorbing resin which has high water-retaining property and can play a good role in storing liquid. The first absorption layer 2 can also be made of dust-free paper, spunlace fabric, hot air non-woven fabric or other materials.

In particular, the grammage of the second absorbent layer 3 is 65-200 gsm. The second absorption layer 3 is formed by hot-press molding of high-molecular water-absorbent resin and wood pulp, and the ratio of the high-molecular water-absorbent resin in the second absorption layer 3 is 30-60%. The second absorption layer 3 is made of absorption type high polymer water-absorbent resin, and the absorption type high polymer water-absorbent resin has high water retention property and can play a good role in storing liquid. The gram weight and the ratio of the high molecular water-absorbent resin of the second absorption layer 3 are both larger than those of the first absorption layer 2, the first absorption layer 2 is used for absorbing a small amount of liquid, and the second absorption layer 3 is used for absorbing a large amount of liquid.

The length and width of the first absorption layer 2 and the second absorption layer 3 may be equal, or the length and width of the first absorption layer 2 may be greater than the length and width of the second absorption layer 3, respectively.

The present embodiment also provides a sanitary napkin comprising a top surface portion 4 and a bottom surface portion 5, and further comprising the above-mentioned superabsorbent core, which is located between the top surface portion 4 and the bottom surface portion 5. Due to the arrangement of the super-absorption core body, the sanitary towel is integrally light and thin, the absorption and diffusion speed of liquid can be effectively improved, and the absorption capacity can be increased.

Specifically, the top surface portion 4 is bonded to the liquid permeable layer 1, the bottom surface portion 5 is bonded to the second absorbent layer 3, and the length of the bottom surface portion 5 is longer than the length of the second absorbent layer 3. The bottom surface part 5 is a leak-proof breathable basement membrane, the length of the bottom surface part is long, liquid side flow can be prevented, the super-absorbent core body can expand after absorbing liquid, and a sufficient expansion space is reserved in the bottom surface part 5. The length of the top surface portion 4 is the same as the length of the first absorbent layer 2, and the portion of the top surface portion 4 that exceeds the liquid-permeable layer 1 is bonded to the first absorbent layer 2.

More specifically, the outer edges of the top surface portion 4 and the bottom surface portion 5 are pressed together. The superabsorbent core is wrapped between the top surface portion 4 and the bottom surface portion 5. The left side and the right side of the bottom surface part 5 are respectively provided with a leakage-proof butterfly-shaped protective wing piece, and the bottom surfaces of the bottom surface part 5 and the leakage-proof butterfly-shaped protective wing pieces are both provided with adhesive layers which are convenient to be adhered to underpants when in use so as to prevent slippage and side leakage.

Optionally, the top surface portion 4 includes a surface layer 41 and an inner layer 42, which are stacked, the inner layer 42 is attached to the liquid passing layer 1, and a plurality of protrusions are disposed on an outer surface of the surface layer 41. Grooves are formed among the plurality of bulges, so that the absorption and the flow guide are facilitated. In this embodiment, the surface layer 41 is made of 1-6 denier fine denier fibers, the surface layer 41 is the outermost part attached to the skin, the fine denier fibers are 1-6 denier fine denier fibers, the skin-friendly effect is soft, the comfort level of a user is improved, the inner layer 42 is made of 3-10 denier coarse denier fibers, and the 3-10 denier coarse denier fibers can play a good flow guiding effect.

Optionally, the protrusion is of hemispherical configuration. The surface of the hemispherical structure is smooth, so that the comfort level of a user can be improved, and other three-dimensional structures can be adopted, which is not described herein again.

Optionally, the inner layer 42 is a plain weave face layer. The plain weave surface layer has good flow guiding performance, and further improves the flow guiding effect of the top surface part 4 of the sanitary towel.

The sanitary towel that this embodiment provided, the apical face portion 4 and the liquid layer 1 that leads to that are close to the skin have fine water conservancy diversion effect, can absorb liquid and lead downwards, make the upper portion of sanitary towel not gather liquid, improve the dry and comfortable comfort level of user's skin, the liquid of guide below absorbs the storage through first absorbed layer 2 and second absorbed layer 3, because first absorbed layer 2 and second absorbed layer 3 have fine water absorption, water-retaining performance, can increase the absorbed dose of liquid, and still help the apical face portion 4 of top and the infiltration of liquid layer 1 liquid.

Of course, the superabsorbent cores described above can be used not only in sanitary napkins, but also in diapers.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A super-absorbent core is characterized by comprising a liquid passing layer (1), a first absorbent layer (2) and a second absorbent layer (3) which are sequentially stacked from top to bottom, wherein the second absorbent layer (3) is a polymer composite layer, the lengths of the first absorbent layer (2) and the second absorbent layer (3) are both larger than that of the liquid passing layer (1), the liquid passing layer (1) is positioned in the middle of the first absorbent layer (2), the liquid passing layer (1) can absorb liquid and guide the liquid to the periphery, and the first absorbent layer (2) and the second absorbent layer (3) can absorb and contain the liquid.

2. Superabsorbent core according to claim 1, characterized in that the liquid-pervious layer (1) is a polymer composite layer and the grammage of the liquid-pervious layer (1) is 40-100 gsm.

3. A superabsorbent core according to claim 1, characterized in that the first absorbent layer (2) is a polymeric composite layer and the grammage of the first absorbent layer (2) is 40-100 gsm.

4. Superabsorbent core according to claim 1, characterized in that the grammage of the second absorbent layer (3) is 65-200 gsm.

5. A sanitary napkin comprising a top surface portion (4) and a bottom surface portion (5), characterized in that it further comprises a superabsorbent core as claimed in any one of claims 1 to 4, said superabsorbent core being located between said top surface portion (4) and said bottom surface portion (5).

6. A sanitary napkin according to claim 5, wherein the top surface portion (4) is attached to the liquid pervious layer (1), the bottom surface portion (5) is attached to the second absorbent layer (3), and the length of the bottom surface portion (5) is greater than the length of the second absorbent layer (3).

7. A sanitary towel according to claim 5, characterized in that the outer edges of the top surface part (4) and the bottom surface part (5) are pressed together.

8. A sanitary napkin according to claim 5, wherein the top surface portion (4) comprises a surface layer (41) and an inner layer (42) arranged in a stack, the inner layer (42) being attached to the liquid permeable layer (1), the surface layer (41) being provided with a plurality of protrusions on its outer surface.

9. A sanitary napkin as claimed in claim 8, wherein said protrusions are of hemispherical configuration.

10. A sanitary napkin as claimed in claim 8, wherein said inner layer (42) is a plain weave facing layer.