CN212592729U - Absorbing article - Google Patents
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- CN212592729U CN212592729U CN202020646852.9U CN202020646852U CN212592729U CN 212592729 U CN212592729 U CN 212592729U CN 202020646852 U CN202020646852 U CN 202020646852U CN 212592729 U CN212592729 U CN 212592729U
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Abstract
The utility model relates to an absorbing article. The absorption article comprises a surface layer, a flow blocking layer, an absorption layer and a bottom layer from top to bottom; the flow blocking layer is a fiber material layer made of first fibers and second fibers from top to bottom; the first fiber is any one or more of polypropylene fiber, polyethylene fiber and polyester resin fiber; the second fibers are viscose fibers. The utility model discloses replace the water conservancy diversion layer of conventional structure with the choked flow layer, more be fit for the demand of products such as sanitary towel, nursing pad, baby diaper, with liquid conduction to absorbed layer after, the barrier layer can prevent liquid reflux, ensures sanitary towel's dry and comfortable nature, promotes the comfort level of absorbed article when using.
Description
Technical Field
The utility model relates to an absorbent sanitary goods technical field especially relates to an absorbent article.
Background
In recent years, the products of absorbent articles (such as sanitary napkins) are diversified, but most of the products are soft, comfortable and safe, and how to improve the dryness of the absorbent articles is a big problem as an important nursing product. Especially, in the case of sanitary napkins, many sanitary napkins cannot effectively absorb menstrual blood, and the comfort of the absorbent article during use is affected due to more surface residues and high humidity.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: how to improve the surface dryness of the absorbent article to improve the comfort of the absorbent article during use.
In order to solve the technical problem, the utility model provides a following technical scheme:
an absorption article, which comprises a surface layer, a flow blocking layer, an absorption layer and a bottom layer from top to bottom;
the flow blocking layer is a structural layer with weak upper-layer hydrophilicity and strong lower-layer hydrophilicity; and the flow barrier layer is a fibrous material layer made of first fibers and second fibers; the first fiber is any one or more of polypropylene fiber, polyethylene fiber and polyester resin fiber; the second fibers are viscose fibers.
Preferably, the grammage of the fluid barrier layer is 20-60g/m2(ii) a And/or
The flow blocking layer is provided with lower seepage holes, and the coverage area of the lower seepage holes is not more than 80%.
Preferably, the absorbent layer comprises an absorbent surface layer and an absorbent core.
Preferably, the absorbent surface layer forms the absorbent layer with the absorbent core by means of full wrapping, partial wrapping or parallel covering.
Preferably, the absorption surface layer is first composite absorbent paper; and/or
The absorbent core comprises at least one layer of second composite absorbent paper.
Preferably, the first composite absorbent paper and/or the second composite absorbent paper are/is a composite paper material which is made by a wet papermaking process and has two layers of base paper and macromolecular absorbent resin particles sandwiched between the two layers of base paper; or
The first composite absorbent paper and/or the second composite absorbent paper are/is made of composite paper materials of two layers of absorbent paper and macromolecule absorbent resin particles sandwiched between the two layers of absorbent paper, and the absorbent paper is any one or more of wet strength paper, dust-free paper and non-woven fabrics.
Preferably, the gram weight of the first composite absorbent paper is 80-150g/m2The content of the high-molecular water-absorbing resin is 10-20%.
Preferably, the gram weight of the second composite absorbent paper is 30-80g/m2The content of the high-molecular water-absorbing resin is 20-50%.
Preferably, the surface layer is one or more of spun-bonded non-woven fabric, hot-air non-woven fabric, spunlace non-woven fabric and cotton cloth; and/or
The bottom layer is made of polyethylene polymer.
Preferably, the gram weight of the surface layer is 16-30g/m2。
Advantageous effects
The above technical scheme of the utility model has following advantage:
the utility model provides a choked flow layer among the absorbent article plays the effect that prevents the liquid backward flow. The water blocking layer upper hydrophilic is weak and the lower floor's hydrophilicity is strong, when liquid from the top layer transfer to the water blocking layer when transferring to the absorbed layer again, because the one end hydrophilicity of water blocking layer and top layer contact is weak, consequently, the liquid of conduction to the absorbed layer is by the below of separation at the water blocking layer upper surface, and is difficult to reverse ooze to the top layer to promote the dry and comfortable nature on absorbed article top layer. In addition, the hydrophilicity of the lower end of the flow blocking layer is stronger than that of the upper end of the flow blocking layer, so when liquid is conducted to the flow blocking layer, the difference of the hydrophilicity of the upper end and the lower end of the flow blocking layer is beneficial to the downward permeation and diffusion of the liquid in the flow blocking layer, and the liquid is conducted to the absorption layer more quickly.
The flow blocking layer is a fiber material layer made of two types of fibers, and the two types of fibers have different hydrophilicities. The first fibers are any one or more of polypropylene fibers, polyethylene fibers and polyester resin fibers, and are more preferably polypropylene fibers, and the second fibers are viscose fibers. The flow blocking layer made of the two fibers integrally shows proper water absorption performance, the structure of the flow blocking layer is not damaged because the flow blocking layer is very easy to absorb water, and the condition that the liquid infiltration speed is not influenced because the flow blocking layer is not easy to absorb water is avoided.
In some preferred technical schemes, the flow blocking layer is provided with lower seepage holes, and the coverage area of the lower seepage holes is not more than 80%. The downward-permeating holes improve the downward-permeating speed of liquid, so that the absorbent article has the advantages of high absorption speed and dry and comfortable surface, and the comfort degree of the absorbent article in use is improved. The coverage area of the lower seepage holes is not more than 80%, the design can ensure the structural stability of the flow blocking layer, and the problem that the flow blocking layer cannot play a good role in preventing liquid from flowing back due to structural damage (such as dissociation) after liquid absorption is avoided.
In some preferred technical schemes, the absorption surface layer in the utility model is first compound absorbent paper. This absorption top layer not only can play the effect of protection absorption core body structural stability (through the mode of whole parcel, partial parcel or parallel cover), this absorption top layer still has better imbibition ability moreover, can further promote the imbibition ability of absorbed layer, makes liquid absorbed more fast, reduces the contact time of liquid and consumer skin, guarantees user's comfort level.
The utility model discloses the absorbed layer adopts absorbent particle to inlay the material at two-layer wood pulp body paper, can make the diffusion absorption of absorbent particle and wood pulp exert maximum efficiency, improves product utilization, and locks the water ability reinforce, is difficult for the reverse osmosis.
Drawings
Fig. 1 is a schematic view of the structure of an absorbent article provided by the present invention;
FIG. 2 is a top view of a barrier layer provided with infiltration holes;
FIG. 3 is a schematic view of an absorbent cover and absorbent core formed into an absorbent layer by full wrapping;
FIG. 4 is a schematic view of an absorbent cover and absorbent core partially wrapped to form an absorbent layer;
figure 5 is a schematic view of an absorbent surface layer and an absorbent core in parallel overlying form an absorbent layer.
In the figure: 1: a surface layer; 2: a fluid barrier layer; 21: downward seeping holes; 3: an absorbing layer; 31: an absorbent surface layer; 32: an absorbent core; 4: a bottom layer.
Detailed Description
In order to make the purpose, technical solution and advantages of the present invention clearer, the following embodiments of the present invention will be combined to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in fig. 1 to 5, there is a situation that layers are peeled off from each other between each structural layer, which is to clearly show the position relationship between each structural layer provided by the present invention, it should be understood that each structural layer of the absorbent structure provided by the present invention is tightly attached to each other.
The utility model provides an absorbing article, as shown in figure 1, the absorbing article comprises a surface layer 1, a flow blocking layer 2, an absorbing layer 3 and a bottom layer 4 from top to bottom;
the flow blocking layer 2 is a fiber material layer made of first fibers and second fibers from top to bottom; the first fiber is any one or more of polypropylene fiber, polyethylene fiber and polyester resin fiber; the second fibers are viscose fibers.
Choking layer 2
The utility model provides a choking layer 2 in the absorbing article plays and prevents liquidThe effect of body reflux. Structurally, the upper layer of the fluid barrier layer 2 has a weak hydrophilicity, and the lower layer has a strong hydrophilicity (note that "weak" and "strong" are relative terms, and refer to that the upper layer of the fluid barrier layer 2 has a weaker hydrophilicity than that of the lower layer of the fluid barrier layer 2). When liquid is transferred from the surface layer 1 to the barrier layer 2 and then transferred to the absorption layer 3, because the hydrophilic property of the end of the barrier layer 2 contacting the surface layer 1 is weak, the liquid transferred to the absorption layer 3 is blocked below the upper surface of the barrier layer 2, and is not easy to reverse-permeate to the surface layer 1, thereby improving the dryness of the surface layer 1 of the absorption article. In addition, the lower end of the flow blocking layer 2 has a higher hydrophilicity than the upper end of the flow blocking layer 2, so that when the liquid is conducted to the flow blocking layer 2, the difference in hydrophilicity at the upper and lower ends of the flow blocking layer 2 facilitates the downward permeation and diffusion of the liquid in the flow blocking layer 2, so that the liquid is conducted to the absorbent layer 3 more quickly. In material composition, the flow blocking layer 2 is a fiber material layer made of two types of fibers, and the two types of fibers have different hydrophilicities. The first fiber is one or more of polypropylene fiber, polyethylene fiber and terylene resin fiber, more preferably polypropylene fiber, the second fiber is viscose fiber, cotton fiber or other plant fiber can be used, and most preferably viscose fiber. The first fibers are weak in hydrophilicity, the second fibers are strong in hydrophilicity, and the flow blocking layer 2 made of the two fibers integrally shows proper water absorption performance, so that the structure of the flow blocking layer is not damaged due to the fact that the flow blocking layer is extremely easy to absorb water, and the situation that the liquid infiltration speed is influenced due to the fact that the flow blocking layer is not easy to absorb water is avoided. In some preferred embodiments, the fluid barrier layer 2 has a grammage of 20 to 60g/m2For example, 20g/m2，25g/m2，30g/m2，35g/m2，40g/m2，45g/m2，50g/m2，55g/m2，60g/m2。
In some preferred embodiments, as shown in fig. 2, the fluid barrier layer 2 is provided with lower infiltration holes 21, and the coverage area of the lower infiltration holes 21 is not more than 80%. The downward-permeating holes 21 improve the downward-permeating speed of liquid, so that the absorbent article has the advantages of high absorption speed and dry and comfortable surface, and the comfort degree of the absorbent article in use is improved. The utility model provides an among this kind of absorption article, the coverage area of lower filtration pore 21 is no longer than 80%, and the structural stability of choking layer 2 can be ensured to such design, avoids choking layer 2 to appear structural failure (for example dissociate) and can't play the effect of better prevention liquid backward flow after the imbibition. The shape of the infiltration holes 21 can be round, oval, rectangular, wavy and other irregular shapes, and preferably, oval is selected. Here, "coverage area" means: the total area of pores formed on the upper surface of the flow blocking layer 2 by the infiltration pores 21 accounts for the proportion of the area of the upper surface of the flow blocking layer 2.
The barrier layer may be formed by conventional methods, preferably by chemical bonding.
The absorption layer 3 in the utility model comprises an absorption surface layer 31 and an absorption core body 32;
the absorbent surface layer 31 forms the absorbent layer 3 with the absorbent core 32 by means of full wrapping, partial wrapping or parallel covering. Fig. 3, 4, 5 show schematic diagrams of full wrap, partial wrap and parallel coverage, respectively.
The absorption surface layer 31 in the utility model is preferably a first composite absorbent paper; the first composite absorbent paper is made of a composite paper material which is made by a wet papermaking process and has two layers of base paper and macromolecular absorbent resin particles sandwiched between the two layers of base paper. This absorption top layer 31 not only can play the effect of protection absorption core 32 structural stability (through the mode of whole parcel, partial parcel or parallel cover), this absorption top layer 31 still has better imbibition ability moreover, can further promote the imbibition ability of absorbed layer 3, makes liquid absorbed more fast, reduces the contact time of liquid and consumer's skin, guarantees user's comfort level.
In some preferred embodiments, the first composite absorbent paper may also be a composite paper material formed by two layers of absorbent paper and polymer absorbent resin particles sandwiched therebetween, and the absorbent paper is any one or more of wet strength paper, dust-free paper and non-woven fabric.
In some alternative embodiments, the absorbent surface layer 31 may also be any one or more of a paper material of dust-free paper, nonwoven, wet-strength paper.
In some preferred embodiments, the grammage of the first composite absorbent paper is 80-150g/m2For example, 80g/m2，85g/m2，90g/m2，95g/m2，100g/m2，110g/m2，120g/m2，130g/m2，140g/m2，150g/m2The content (content means mass percent content) of the high-molecular water-absorbent resin is 10 to 20%, for example, 10%, 15%, 20%.
The absorbent core 32 of the present invention comprises at least one layer of second composite absorbent paper (for example, 1 layer, 2 layers, 3 layers, 4 layers, 5 layers, or more layers, not listed); the second composite absorbent paper is preferably made of a composite paper material which is made by a wet papermaking process and has two layers of base paper and macromolecular absorbent resin particles sandwiched between the two layers of base paper.
In some preferred embodiments, the second composite absorbent paper may also be a composite paper material in which two layers of absorbent paper are used and the polymeric absorbent resin particles are sandwiched between the two layers of absorbent paper, and the absorbent paper is any one or more of wet strength paper, dust-free paper and non-woven fabric.
In some preferred embodiments, the gram weight of the second composite absorbent paper is 30-80g/m2For example, 30g/m2，40g/m2，50g/m2，60g/m2，70g/m2，80g/m2The content (content means mass percent content) of the high-molecular water-absorbent resin is 20 to 50%, for example, 20%, 30%, 40%, 50%.
The high molecular water absorbent resin (SAP) is a conventional material, and is a typical functional high molecular material.
It should also be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Surface layer 1
The utility model provides a top layer 1 is for spunbonded nonwoven, any one kind or multiple in hot-blast non-woven fabrics, water thorn non-woven fabrics, the cotton, has the advantage of liquidity, makes the utility model provides a top layer 1 is the liquidity top layer. Most preferably, the skin layer 1 is a spunbonded nonwoven.
In some preferred embodiments, the grammage of the skin layer 1 is 16-30g/m2For example, 16g/m2，18g/m2，20g/m2，25g/m2，30g/m2。
The bottom layer 4 is made of polyethylene polymer, namely PE, and has the advantages of air permeability and water impermeability.
It can be seen that the utility model provides an absorbent article is multilayer structure, and multilayer structure can be as an organic whole structure through current method shaping, for example, bonds into a whole by the hot melt adhesive. Of course, other methods may be used, and the present invention is not limited thereto.
The following are examples of the present invention.
Example 1
Example 1 provides a sanitary napkin comprising, from top to bottom, a top layer, a baffle layer, an absorbent layer, and a bottom layer;
the surface layer is spun-bonded non-woven fabric with the gram weight of 18g/m2；
The flow blocking layer is a structural layer with weak upper-layer hydrophilicity and strong lower-layer hydrophilicity, is prepared by mixing polypropylene fibers and viscose fibers according to a mass ratio of 4:6 and then utilizing a chemical bonding method, and has a gram weight of 40g/m2；
The absorption layer comprises an absorption surface layer and an absorption core body, and the absorption surface layer and the absorption core body form the absorption layer through a full-wrapping method;
the absorption surface layer is first composite absorbent paper; the gram weight of the first composite absorbent paper is 100g/m2The content of the high-molecular water-absorbent resin is 20 percent; the absorbent core comprises a second composite absorbent paper; the gram weight of the second composite absorbent paper is 80g/m2The content of the high-molecular water-absorbent resin is 20 percent; the first composite absorbent paper and the second composite absorbent paper are both made of composite paper materials of two layers of base paper and macromolecular absorbent resin particles sandwiched between the two layers of base paper;
the bottom layer is a polyethylene bottom film.
Example 2
Embodiment 2 provides a sanitary napkin comprising, from top to bottom, a top layer, a baffle layer, an absorbent layer, and a bottom layer;
the surface layer is spun-bonded non-woven fabric with the gram weight of 18g/m2；
The flow blocking layer is a structural layer with weak upper-layer hydrophilicity and strong lower-layer hydrophilicity, is prepared by mixing polypropylene fibers and viscose fibers according to a mass ratio of 4:6 and then utilizing a chemical bonding method, and has a gram weight of 40g/m2(ii) a An elliptical infiltration hole is arranged on the flow blocking layer, and the coverage area of the infiltration hole is not more than 60%;
the absorption layer comprises an absorption surface layer and an absorption core body, and the absorption surface layer and the absorption core body form the absorption layer by a parallel covering method;
the absorption surface layer is first composite absorbent paper; the gram weight of the first composite absorbent paper is 100g/m2The content of the high-molecular water-absorbent resin is 20 percent; the absorbent core comprises a second composite absorbent paper; the gram weight of the second composite absorbent paper is 80g/m2The content of the high-molecular water-absorbent resin is 20 percent; the first composite absorbent paper and the second composite absorbent paper are both made of composite paper materials of two layers of base paper and macromolecular absorbent resin particles sandwiched between the two layers of base paper;
the bottom layer is a polyethylene bottom film.
Example 3
Example 3 is essentially the same as example 1, except that:
example 1 provides a sanitary napkin comprising, from top to bottom, a top layer, a baffle layer, an absorbent layer, and a bottom layer;
the surface layer is spun-bonded non-woven fabric with the gram weight of 18g/m2；
The flow blocking layer is a structural layer with weak upper-layer hydrophilicity and strong lower-layer hydrophilicity, and is a fiber material layer prepared by mixing polypropylene fibers and viscose fibers according to a mass ratio of 4:6 and utilizing a chemical bonding method, wherein the gram weight of the fiber material layer is 40g/m2；
The absorption layer comprises an absorption surface layer and an absorption core body, and the absorption surface layer and the absorption core body form the absorption layer through a full-wrapping method;
the absorption surface layer is dust-free paper; the absorbent core comprises composite absorbent paper; the composite absorbent paper is a composite paper material formed by sandwiching high-molecular absorbent resin particles between two layers of wet strength paper; the gram weight of the second composite absorbent paper is 80g/m2The content of the second high-molecular water-absorbing resin is 20 percent;
the bottom layer is a polyethylene bottom film.
Performance detection
The detection method comprises the following steps: fresh animal blood is selected as test liquid, 5mL of fresh animal blood with the temperature of 37 ℃ is added each time at 0min and 10min respectively, the liquid is added for five minutes, the pressure of a 1.2kg weight is used for 1min to test the rewet volume, and qualitative filter paper with the diameter of 9cm is adopted for the rewet volume test.
The sanitary napkins provided in examples 1 to 3 were examined for their absorption rate and reverse osmosis performance according to the methods described above, and a commercially available sanitary napkin was used as a comparative example.
The results are shown in Table 1.
TABLE 1
The structure of the comparative example product is sequentially a hot air non-woven fabric surface layer and a hot air non-woven fabric diversion layer from top to bottom, the absorption layer is an absorption core layer formed by wrapping wet strength paper with dust-free paper and high-molecular water-absorbent resin particles, and the wrapping mode is full wrapping.
Can fully explain through above contrast data, the utility model discloses an implement the ordinary structure product of effect contrast existing market, will outstanding a lot of on the performance of infiltration speed and reverse osmosis, and especially obvious on the dry and cool nature of surface vision.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. An absorption article is characterized in that the absorption article comprises a surface layer, a flow blocking layer, an absorption layer and a bottom layer from top to bottom;
the flow blocking layer is a structural layer with weak upper-layer hydrophilicity and strong lower-layer hydrophilicity; and the flow barrier layer is a fibrous material layer made of first fibers and second fibers; the first fiber is any one or more of polypropylene fiber, polyethylene fiber and polyester resin fiber; the second fibers are viscose fibers.
2. The absorbent article of claim 1,
the gram weight of the flow barrier layer is 20-60g/m2(ii) a And/or
The flow blocking layer is provided with lower seepage holes, and the coverage area of the lower seepage holes is not more than 80%.
3. The absorbent article according to claim 1 or 2,
the absorbent layer includes an absorbent surface layer and an absorbent core.
4. The absorbent article of claim 3,
the absorption surface layer and the absorption core form the absorption layer through a full wrapping, partial wrapping or parallel covering method.
5. The absorbent article of claim 3,
the absorption surface layer is first composite absorbent paper; and/or
The absorbent core comprises at least one layer of second composite absorbent paper.
6. The absorbent article of claim 5,
the first composite absorbent paper and/or the second composite absorbent paper are/is made of a composite paper material which is made by a wet papermaking process and has two layers of base paper and macromolecular absorbent resin particles sandwiched between the two layers of base paper; or
The first composite absorbent paper and/or the second composite absorbent paper are/is made of composite paper materials of two layers of absorbent paper and macromolecule absorbent resin particles sandwiched between the two layers of absorbent paper, and the absorbent paper is any one or more of wet strength paper, dust-free paper and non-woven fabrics.
7. The absorbent article of claim 6,
the gram weight of the first composite absorbent paper is 80-150g/m2The content of the high-molecular water-absorbing resin is 10-20%.
8. The absorbent article of claim 6,
the gram weight of the second composite absorbent paper is 30-80g/m2The content of the high-molecular water-absorbing resin is 20-50%.
9. The absorbent article according to claim 1 or 2,
the surface layer is one or more of spun-bonded non-woven fabric, hot air non-woven fabric, spunlace non-woven fabric and cotton cloth; and/or
The bottom layer is made of polyethylene polymer.
10. The absorbent article of claim 9,
the gram weight of the surface layer is 16-30g/m2。
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| CN202020646852.9U CN212592729U (en) | 2020-04-24 | 2020-04-24 | Absorbing article |
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| CN202020646852.9U CN212592729U (en) | 2020-04-24 | 2020-04-24 | Absorbing article |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114569368A (en) * | 2022-03-21 | 2022-06-03 | 北京倍舒特妇幼用品有限公司 | Carbon fiber medical nursing pad product and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114569368A (en) * | 2022-03-21 | 2022-06-03 | 北京倍舒特妇幼用品有限公司 | Carbon fiber medical nursing pad product and preparation method thereof |
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Effective date of registration: 20211228 Address after: 257344 No.6, Chenguan Road, Chenguan Town, Guangrao County, Dongying City, Shandong Province Patentee after: Nuo Chen Co.,Ltd. Address before: 257000 dongyinggang Economic Development Zone, Dongying City, Shandong Province Patentee before: SHANDONG NUOER BIOLOGICAL TECHNOLOGY Co.,Ltd. |