CN212997040U - Absorption core and absorptive sanitary product - Google Patents
Absorption core and absorptive sanitary product Download PDFInfo
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- CN212997040U CN212997040U CN202020637414.6U CN202020637414U CN212997040U CN 212997040 U CN212997040 U CN 212997040U CN 202020637414 U CN202020637414 U CN 202020637414U CN 212997040 U CN212997040 U CN 212997040U
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Abstract
The utility model relates to an absorb core and absorptive sanitary goods. The absorption core body from top to bottom includes in proper order: the surface layer of the composite absorbent paper is provided with diversion holes or diversion seams; a polymeric water absorbent resin layer; and a fluff pulp layer. The surface layer improves the liquid absorption capacity of the absorption core body from three aspects of absorption capacity, absorption speed and diversion speed, thereby improving the dryness of the absorbent sanitary product; the composite absorbent paper is softer, and the design of the flow guide holes or flow guide seams increases the softness of the surface layer to a certain degree; a high-molecular water-absorbing resin layer is designed behind the surface layer of the composite absorbent paper; the liquid which seeps downwards can be quickly absorbed, and the absorbed liquid is absorbed and firmly locked in the macromolecular water-absorbent resin, so that the dryness of the absorption core body is fundamentally ensured; the fluff pulp layer can play a role in assisting the second high-molecular water-absorbent resin layer to absorb downward-permeating liquid as the lowest layer of the absorption core body, and the air permeability and the flexibility of the absorption core body are guaranteed to the greatest extent.
Description
Technical Field
The utility model relates to an absorbent sanitary goods technical field especially relates to an absorb core and absorbent sanitary goods.
Background
Most of the absorbent sanitary articles currently on the market have a similar structure: a liquid-permeable surface layer, an absorbing core body and a liquid-impermeable bottom film. In the using process, the problems of poor dryness, hard whole, poor air permeability and the like occur in most of the processes. The main factors influencing the disposable absorption articles are the use of materials and the selected structure of the internal absorption core body.
SUMMERY OF THE UTILITY MODEL
The utility model discloses what solve is following one or more technical problem that the absorbent sanitary goods on the existing market exist: poor dryness, poor air permeability and poor softness (softness).
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides an absorb core, it includes from top to bottom in proper order to absorb the core:
the surface layer of the composite absorbent paper is provided with diversion holes or diversion seams;
a polymeric water absorbent resin layer; and
a fluff pulp layer.
Preferably, the aperture of the diversion hole is 0.2-5 mm.
Preferably, the distribution density of the diversion holes is 1-30/cm2。
Preferably, the length of the diversion slit is 2-50mm and/or the width of the diversion slit is 0.1-10 mm.
Preferably, the distribution density of the flow guide slits is 200-10000 strips/m2。
Preferably, the gram weight of the surface layer of the composite absorbent paper is 55-150g/m2；
The gram weight of the high polymer water-absorbing resin layer is 10-350g/m2(ii) a And/or
The gram weight of the fluff pulp layer is 50-500g/m2。
Preferably, the gram weight of the surface layer of the composite absorbent paper is 55-150g/m2；
The gram weight of the high polymer water-absorbing resin layer is 10-120g/m2(ii) a And/or
The gram weight of the fluff pulp layer is 50-150g/m2。
Preferably, the gram weight of the surface layer of the composite absorbent paper is 55-150g/m2；
The gram weight of the high molecular water-absorbing resin layer is 150-350g/m2(ii) a And/or
The gram weight of the fluff pulp layer is 200-500g/m2。
Preferably, the particle size of the high molecular water-absorbing resin forming the high molecular water-absorbing resin layer is 30-80 meshes;
the fiber raw material for forming the fluff pulp layer is any one or more of softwood, hardwood and non-wood fibers; and/or
The composite absorbent paper comprises two paper structures and a polymer composite absorbent resin layer sandwiched between the two paper structures; the paper structure is base paper prepared by taking wood pulp or fluff pulp as a raw material.
An absorbent sanitary product, comprising the utility model provides an absorption core body.
Advantageous effects
The above technical scheme of the utility model has following advantage:
(1) the surface layer improves the liquid absorption capacity of the absorption core body from three aspects of absorption capacity, absorption speed and diversion speed, thereby improving the dryness of the absorbent sanitary product: the utility model innovatively adopts the composite absorbent paper as the surface layer of the absorbent core body, and compared with the traditional surface layer material (such as non-woven fabric), the surface layer of the composite absorbent paper shows better absorption capacity and can absorb a larger amount of liquid; the wood pulp fibers rich in the surface of the composite paper can conduct liquid away quickly, and the liquid is absorbed quickly under the action of the high-molecular water-absorbent resin, so that the absorption speed of the absorption core body is increased. Additionally, the utility model discloses still designed the water conservancy diversion structure on compound absorbent paper top layer: the flow guide holes or the flow guide seams enable the surface layer of the composite absorbent paper to quickly guide liquid into the underlying structure under the flow guide effect of the flow guide structure. Generally speaking, the utility model provides a compound absorbent paper top layer has the absorptive capacity great, the absorption rate is very fast and the nature that can fast water conservancy diversion makes the top layer show faster absorption rate at absorption liquid to the dry and comfortable nature in surface of absorbent sanitary goods has been guaranteed.
(2) The surface layer of the composite absorbent paper shows better flexibility: the compound paper itself that absorbs water is more soft, and the utility model provides a compound paper top layer that absorbs water still designs has water conservancy diversion hole or water conservancy diversion seam, and this has also increased the compliance on top layer to a certain extent.
(3) High-efficiency water locking of the high-molecular water-absorbent resin layer: the utility model discloses the design has the polymer absorbent resin layer behind the compound absorption paper top layer, and the polymer absorbent resin layer is the main absorbent structure who absorbs the core, can absorb the liquid that oozes down fast, absorbs the liquid that absorbs and firmly locks inside the polymer absorbent resin, and fundamentally ensures the dry and comfortable nature of absorption core.
(4) The fluff pulp layer assists in absorbing liquid: the fluff pulp layer as the lowest layer of the absorption core can play a role in assisting the second macromolecule water-absorbent resin layer to absorb the downward-seeping liquid, and compared with other absorption cores taking various weaving materials as main bodies, the air permeability and the flexibility of the absorption core are ensured to the greatest extent.
Drawings
Fig. 1 is a schematic structural view of an absorbent core provided by the present invention (it should be noted that the drawings are for illustrative purposes only and do not show the core structure and the structures having the dimensions shown in the drawings);
FIG. 2 is a schematic view of a surface layer of a composite absorbent paper having flow directing holes;
fig. 3 is a schematic view of a composite absorbent paper surface layer with a flow directing seam.
In the figure: 1: a composite absorbent paper surface layer; 2: a polymeric water absorbent resin layer; 3: a fluff pulp 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.
Absorption core body
The utility model discloses provide an absorb core in the first aspect, refer to fig. 1, fig. 2 and fig. 3, it includes from top to bottom in proper order to absorb the core:
a composite absorbent paper surface layer 1 provided with flow guide holes or flow guide seams;
a high-molecular water-absorbent resin layer 2; and
a fluff pulp layer 3.
An absorbent core having such a structure exhibits the following advantages:
(1) the surface layer improves the liquid absorption capacity of the absorption core body from three aspects of absorption capacity, absorption speed and diversion speed, thereby improving the dryness of the absorbent sanitary product: the utility model innovatively adopts the composite absorbent paper as the surface layer of the absorbent core, and compared with the traditional surface layer material (such as non-woven fabric), the surface layer 1 of the composite absorbent paper shows better absorption capacity and can absorb a larger amount of liquid; the rich wood pulp fiber on the surface of the composite paper can rapidly conduct liquid, and the liquid is rapidly absorbed under the action of the high-molecular water-absorbent resin, so that the absorption speed and the surface dryness of the absorption core body are improved. Additionally, the utility model discloses still designed the water conservancy diversion structure on compound absorbent paper top layer 1: the flow guide holes or the flow guide seams enable the composite absorbent paper surface layer 1 to quickly guide liquid into the underlying structure under the flow guide effect of the flow guide structure. Generally speaking, the utility model provides a nature that compound absorbent paper top layer 1 has that the absorbed mass is great, the absorption rate is very fast and can fast water conservancy diversion makes the top layer show faster absorption rate at the absorption liquid to the dry and comfortable nature in surface of absorbent sanitary goods has been guaranteed.
(2) The composite absorbent paper surface layer 1 exhibits better softness: the compound paper itself that absorbs water is more soft, and the utility model provides a compound paper top layer 1 that absorbs water still designs has water conservancy diversion hole or water conservancy diversion seam, and this has also increased the compliance on top layer to a certain extent.
(3) The high-efficiency water locking of the high-molecular water-absorbing resin layer 2: the utility model discloses the design has polymer absorbent resin layer 2 behind the compound absorption paper top layer, and polymer absorbent resin layer 2 is the main absorbent structure who absorbs the core, and the liquid that oozes down can be absorbed fast, absorbs the liquid of absorption and firmly locks inside polymer absorbent resin, and fundamentally ensures the dry and comfortable nature of absorption core.
(4) The fluff pulp layer 3 assists in absorbing liquid: the fluff pulp layer 3 as the lowest layer of the absorbent core can play a role of assisting the second macromolecule water-absorbent resin layer 2 to absorb the downward-permeating liquid, and compared with other absorbent cores taking various weaving materials as main bodies, the air permeability and the flexibility of the absorbent core are ensured to the greatest extent.
Composite absorbent paper surface layer 1
As mentioned above, the surface layer 1 of the composite absorbent paper of the present invention is designed with flow guiding holes or flow guiding slits (not shown in fig. 1, refer to fig. 2 and 3).
When the flow directing structure is a flow directing hole, in some preferred embodiments, the flow directing hole has a hole diameter (referred to as a diameter) of 0.2-5 mm. It should be noted that the diversion holes distributed on the surface layer may be of the same pore size structure or of different pore sizes. Furthermore, the utility modelPreferably, the distribution density of the diversion holes on the surface of the composite absorbent paper is 1-30/cm2Namely: 1-30 diversion holes are distributed on the surface of the composite absorbent paper per square centimeter. The utility model discloses the distribution density to the water conservancy diversion hole has been injectd, does not do special limit to its distribution mode, as long as satisfy above-mentioned distribution density's arbitrary distribution mode all can regard as the utility model discloses feasible distribution mode.
When the flow directing structure is a flow directing slit, in some preferred embodiments, the flow directing slit has a length of 2 to 50mm and/or a width of 0.1 to 10 mm. More preferably, the distribution density of the flow guide seams on the surface of the composite absorbent paper is 200-10000 strips/m2Namely: 10000 diversion seams of 200 pieces are distributed on the surface of the composite absorbent paper per square meter. The utility model discloses the distribution density to water conservancy diversion seam has been injectd, does not do special limit to its distribution mode, as long as satisfy above-mentioned distribution density's arbitrary distribution mode all can regard as the utility model discloses feasible distribution mode.
The composite absorbent paper forming the surface layer 1 of the composite absorbent paper is made of the existing material. The compound absorbent paper is that the intermediate clamp one deck polymer absorbent resin compound technology (compound technology can adopt wet process complex) formation with lower floor body paper, and wood pulp or fluff pulp are adopted to upper and lower floor body paper raw materials are preferred, use the utility model discloses in can improve the dry and comfortable nature of product, promote the compliance of product. In some preferred embodiments, the gram weight of the surface layer 1 of the composite absorbent paper is 55-150g/m2。
High-molecular water-absorbent resin layer 2
The polymer water-absorbent resin layer 2 does the utility model provides an absorb second floor in the core is located the below on compound absorbent paper top layer 1, plays the main part absorption function, can conduct the most liquid quick absorption on second floor through the water conservancy diversion with first compound ply to polymer absorbent resin self has network structure's characteristic, and it absorbs water, the function of moisturizing to lock absorbent liquid in its network structure. It should be noted that the material constituting the high molecular water absorbent resin layer 2 is a high molecular water absorbent resin, also called SAP, which is a conventional material and is a typical functional high molecular material.
In some preferred embodiments, the grammage of the water absorbent polymer resin layer 2 is 10 to 350g/m2. When the absorbent cores are applied to different kinds of absorbent sanitary articles, the grammage of the polymeric water absorbent resin layer 2 differs. When the absorbent core is used in the field of sanitary napkins, the grammage of the polymeric water-absorbent resin layer 2 is more preferably 10 to 120g/m2. When the absorbent core is used in the field of paper diapers, the gram weight of the high molecular water-absorbent resin layer 2 is further preferably 150-350g/m2。
In some preferred embodiments, the particle size of the polymeric water absorbent resin constituting the polymeric water absorbent resin layer 2 is 30 to 80 mesh.
The fluff pulp layer 3 is positioned below the high molecular water absorbent resin layer 2, can absorb a small amount of liquid remained or seeped from the high molecular water absorbent resin layer 2, ensures that the liquid can be completely absorbed by the absorbent core, and increases the air permeability and the flexibility of the absorbent core. The fluff pulp constituting the fluff pulp layer 3 is preferably produced from any one or more of softwood, hardwood, and non-wood fibers. The fluff pulp obtained by the production raw materials has longer fibers and good strength of the fibers, is easy to be dissociated into single fibers on a fluff raising machine, generates less dust during processing and raising, has good water absorption, is quickly diffused, has high whiteness of the fluff pulp fibers, has certain elasticity and better integrity of a core cushion, and meets the specified hygienic index. Among the above-mentioned types of production raw materials, the most preferable production raw material is softwood, and the fluff pulp fiber produced by softwood is longer and has good softness, and the fluff pulp fiber has good conduction effect and simultaneously ensures the softness of the absorbent core. In some preferred embodiments, the grammage of the fluff pulp layer 3 is between 50 and 500g/m2. When the absorbent core is applied in different kinds of absorbent sanitary articles, there is a difference in grammage of the fluff pulp layer 3. When the absorbent core is used in the field of sanitary napkins, the grammage of the fluff pulp layer 3 is further preferably 50-150g/m2. When the absorbent core is used in the field of diapers, the fluffThe gram weight of the slurry layer 3 is more preferably 200-500g/m2。
Absorbent sanitary article
The present invention provides in a second aspect an absorbent sanitary article comprising an absorbent core as provided in the first aspect.
The utility model discloses the absorption core that provides in the first aspect can use in the absorptive sanitary product on the market, like in baby diaper, feminine napkin and the adult uses the urine trousers, be particularly useful for among the feminine napkin. The absorbent core provided by the first aspect can be used as an absorbent layer of a diaper or a sanitary napkin, a layer of non-woven fabric is covered on the absorbent core to be used as a surface layer, a layer of cover cloth can be further covered under the surface layer according to the selection of the surface layer, and a bottom film layer is arranged under the absorbent core layer to form a complete and usable product. The utility model provides an absorption core body in the first aspect is applied to sanitary products, the used surface layer non-woven fabrics can be hot air non-woven fabrics, spun-bonded non-woven fabrics and spunlace non-woven fabrics, and the hot air non-woven fabrics with thicker fiber denier can be selected as the preferred surface layer; can add one deck cloth cover layer under the surface course, cloth cover layer primary function is for playing the effect that prevents that lower floor's polymer water-absorbing resin or fluff pulp fibre from leaking the surface through the fibre space, can play the function of water conservancy diversion according to the difference of chooseing for use the material, and optional material is spunbonded nonwoven, hot-blast non-woven fabrics or water thorn non-woven fabrics. In cooperation with the use of the novel absorption core, the bottom film is suitable for a high-quality bottom film which is breathable and waterproof, so that the good performance of the breathability of the absorption core is ensured. This novel absorption core is functional absorber, has good performance for as the absorption core of sanitary products, each layer material of various differences of collocation can both have than other better effects of absorption core.
The absorbent sanitary article may be a sanitary napkin or a pant diaper.
The following are examples of the present invention. The materials of the respective layers in the following examples are conventional.
Example 1
the surface layer of the composite absorbent paper is as follows: the gram weight of the composite absorbent paper layer is 80g/m2The composite absorbent paper layer is a composite absorbent paper layer with a flow guide structure, and is distributed with flow guide holes, the circular hole structure of the flow guide holes has the hole diameter of 1mm and the distribution density of 12/cm2；
Polymer water-absorbent resin layer 2: the gram weight of the high polymer water-absorbent resin layer 2 is 35g/m2The particle size of the high molecular water-absorbing resin is 30-80 meshes; and
fluff pulp layer: the fluff pulp layer is selected by using needle-leaved wood as a raw material pulp board, and the gram weight is 70g/m2。
The application comprises the following steps:
the absorbent core provided in example 1 was applied to a sanitary napkin comprising a facing layer, a coverstock layer, an absorbent core and a backsheet; the surface layer is hot air non-woven fabric with a gram weight of 25g/m2(ii) a The cover cloth layer is spun-bonded non-woven fabric with the gram weight of 12g/m2(ii) a The gram weight of the bottom layer is 18g/m2。
The manufacturing method comprises the following steps:
rolling the diversion holes with the pore diameter and the distribution density on the composite absorbent paper;
the production method comprises the steps of uniformly paving fluff pulp on a breathable basement membrane to form a fluff pulp layer, uniformly paving high-molecular water-absorbent resin particles on the fluff pulp layer to form a high-molecular water-absorbent resin layer 2, then paving composite water-absorbent paper on the high-molecular water-absorbent resin layer 2 to form a composite water-absorbent paper surface layer, then covering a covering cloth layer on the composite water-absorbent paper surface layer, and finally attaching a hot air surface layer to obtain a complete sanitary towel finished product. The structures of all layers are fixed into an integral structure by glue or a hot pressing method.
Example 2
the surface layer of the composite absorbent paper is as follows: the gram weight of the composite absorbent paper layer is 120g/m2The composite absorbent paper layer is a composite absorbent paper layer with a flow guide structure, flow guide cutting seams are distributed on the composite absorbent paper layer, the width of each flow guide cutting seam is 1mm, the length of each flow guide cutting seam is 20mm, and the distribution density of each flow guide cutting seam is 3000 pieces/m2；
Polymer water-absorbent resin layer 2: the gram weight of the high polymer water-absorbent resin layer 2 is 35g/m2The particle size of the high molecular water-absorbing resin is 30-80 meshes; and
fluff pulp layer: the fluff pulp layer is selected by using needle-leaved wood as a raw material pulp board, and the gram weight is 70g/m2。
The application comprises the following steps:
the absorbent core provided in example 2 was applied to a sanitary napkin comprising a facing layer, a coverstock layer, an absorbent core and a backsheet; the surface layer is hot air non-woven fabric with a gram weight of 25g/m2(ii) a The cover cloth layer is spun-bonded non-woven fabric with the gram weight of 12g/m2(ii) a The gram weight of the bottom layer is 18g/m2。
The manufacturing method comprises the following steps:
rolling a diversion cutting seam with the size and the distribution density on the composite absorbent paper;
the production method comprises the steps of uniformly paving fluff pulp on a breathable basement membrane to form a fluff pulp layer, uniformly paving high-molecular water-absorbent resin particles on the fluff pulp layer to form a high-molecular water-absorbent resin layer 2, then paving composite water-absorbent paper on the high-molecular water-absorbent resin layer 2 to form a composite water-absorbent paper surface layer, then covering a covering cloth layer on the composite water-absorbent paper surface layer, and finally attaching a hot air surface layer to obtain a complete sanitary towel finished product. The structures of all layers are fixed into an integral structure by glue or a hot pressing method.
Example 3
the surface layer of the composite absorbent paper is as follows: the gram weight of the composite absorbent paper layer is 130g/m2The composite absorbent paper layer is a composite absorbent paper layer with a flow guide structure, and is distributed with flow guide holes, the circular hole structure of the flow guide holes has the pore diameter of 2.5mm and the distribution density of 2/cm2；
Polymer water-absorbent resin layer 2: the grammage of the water-absorbent polymer resin layer 2 was 260g/m2The particle size of the high molecular water-absorbing resin is 30-80 meshes; and
fluff pulp layer: the fluff pulp layer selects a pulp board which takes needle-leaved wood as a raw material and has the gram weight of 260g/m2。
The application comprises the following steps:
the absorbent core provided in example 3 was applied to a diaper comprising a topsheet, a coverstock layer, an absorbent core and a backsheet; the surface layer is a double-layer hot air non-woven fabric with the gram weight of 36g/m2(ii) a The gram weight of the bottom layer is 20g/m2。
Example 4
Embodiment 4 provides an absorb core, from top to bottom include in proper order:
the surface layer of the composite absorbent paper is as follows: the gram weight of the composite absorbent paper layer is 130g/m2The composite absorbent paper layer is a composite absorbent paper layer with a diversion structure, and diversion cutting seams are distributed on the composite absorbent paper layer, the width of each diversion cutting seam is 2mm, the length of each diversion cutting seam is 25mm, and the distribution density of the composite absorbent paper layer is 1800 pieces/m2；
Polymer water-absorbent resin layer 2: the grammage of the water-absorbent polymer resin layer 2 was 260g/m2The particle size of the high molecular water-absorbing resin is 30-80 meshes; and
fluff pulp layer: the fluff pulp layer selects a pulp board which takes needle-leaved wood as a raw material and has the gram weight of 260g/m2。
The application comprises the following steps:
the absorbent core provided in example 4 is applied to a diaper, the diaper comprises a surface layer, a cover fabric layer, an absorbent core and a bottom layer; the surface layer is a double-layer hot air non-woven fabric with the gram weight of 36g/m2(ii) a The gram weight of the bottom layer is 20g/m2。
In order to avoid the phenomena that the macromolecular water-absorbing resin and the fluff pulp leak out of the surface layer, a wrapping layer can be additionally arranged on the fluff pulp.
Comparative example 1
Comparative example 1 provides a core structure having a two-layer structure, the first layer being a high molecular water absorbent resin layer 2 and the second layer being a fluff pulp layer.
Except for the difference of the core structure from the example 1 and the example 2, the materials of the layers are the same materials in order to ensure the feasibility and the effectiveness of comparison. The gram weight of the polymer water-absorbing resin layer 2 in the core body structure is 35g/m2The second fluff pulp layer is made of needle-leaved woodThe weight is 70g/m2。
The absorbent core of the double-layer structure provided in comparative example 1 was applied to a sanitary napkin comprising a topsheet, an absorbent core and a backsheet; the surface layer is hot air non-woven fabric with a gram weight of 25g/m2(ii) a The cover cloth layer is spun-bonded non-woven fabric with the gram weight of 12g/m2(ii) a The gram weight of the bottom layer is 18g/m2。
The manufacturing method comprises the following steps:
the layers are compounded into the finished product of the sanitary towel by glue or hot pressing and other methods.
And uniformly paving the fluff pulp on the breathable basement membrane to form a fluff pulp layer, uniformly paving high-molecular water-absorbent resin particles on the fluff pulp layer to form a high-molecular water-absorbent resin layer 2, then covering the high-molecular water-absorbent resin layer 2 with a spun-bonded non-woven fabric covering fabric layer, and finally attaching a hot air surface layer to obtain a complete sanitary towel finished product.
Comparative example 2
Comparative example 2 provides a core structure having a two-layer structure, the first layer being a high molecular water absorbent resin layer 2 and the second layer being a fluff pulp layer.
Except for the difference of the core structure from the example 3 and the example 4, the materials of the layers are the same materials in order to ensure the feasibility and the effectiveness of comparison. The gram weight of the polymer water-absorbing resin layer 2 in the core body structure is 260g/m2The second fluff pulp layer adopts a needle-leaved wood pulp board as a raw material, and the gram weight is 260g/m2。
The double-layer structure absorption core provided by the comparative example 2 is applied to a paper diaper, and the paper diaper comprises a surface layer, a cover cloth layer, an absorption core and a bottom layer; the surface layer is a double-layer hot air non-woven fabric with the gram weight of 36g/m2(ii) a The gram weight of the bottom layer is 20g/m2。
And (3) performance detection:
the sanitary towel detection method comprises the following steps: the testing liquid of the sanitary towel selects fresh animal blood, 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 used for the rewet volume test.
The test results of example 1, example 2 and comparative example 1 are shown in table 1.
TABLE 1
The detection method of the paper diaper comprises the following steps: adding 0.9% physiological saline at room temperature for 0min, 10min and 20min, respectively, each time adding 80mL, adding 5 min, and pressurizing 3.5kg
The weight measures the back-osmosis amount, and the back-osmosis amount test adopts qualitative filter paper with the diameter of 11 cm.
The results of the tests of example 3, example 4 and comparative example 2 are shown in table 2.
TABLE 2
Can find out from above contrast experimental data, the utility model discloses an absorption core structure is applied to in the sanitary ware, can conduct lower floor rapidly with liquid under the effect of compound paper top layer water conservancy diversion that absorbs water, and the absorption rate is fast, and the particularity of material and structure makes its finished product performance than ordinary structure in the aspect of dry and comfortable nature better, the utility model discloses use all have better performance in sanitary towel and panty-shape diapers.
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. The utility model provides an absorb core, its characterized in that, it includes from top to bottom in proper order to absorb the core:
the surface layer of the composite absorbent paper is provided with diversion holes or diversion seams;
a polymeric water absorbent resin layer; and
a fluff pulp layer;
the composite absorbent paper comprises two paper structures and a high polymer composite absorbent resin layer sandwiched between the two paper structures; the paper structure is base paper prepared by taking wood pulp or fluff pulp as a raw material.
2. Absorbent core according to claim 1,
the aperture of the diversion hole is 0.2-5 mm.
3. Absorbent core according to claim 2,
the distribution density of the diversion holes is 1-30/cm2。
4. Absorbent core according to claim 1,
the length of the flow guide seam is 2-50mm and/or the width of the flow guide seam is 0.1-10 mm.
5. Absorbent core according to claim 4,
the distribution density of the flow guide slits is 200-10000 strips/m2。
6. Absorbent core according to claim 1,
the gram weight of the surface layer of the composite absorbent paper is 55-150g/m2；
The gram weight of the high polymer water-absorbing resin layer is 10-350g/m2(ii) a And/or
The gram weight of the fluff pulp layer is 50-500g/m2。
7. Absorbent core according to claim 6,
the gram weight of the surface layer of the composite absorbent paper is 55-150g/m2；
The gram weight of the high polymer water-absorbing resin layer is 10-120g/m2(ii) a And/or
The gram weight of the fluff pulp layer is 50-150g/m2。
8. Absorbent core according to claim 6,
the gram weight of the surface layer of the composite absorbent paper is 55-150g/m2；
The gram weight of the high molecular water-absorbing resin layer is 150-350g/m2(ii) a And/or
The gram weight of the fluff pulp layer is 200-500g/m2。
9. Absorbent core according to any of claims 1 to 8,
the particle size of the high molecular water-absorbing resin forming the high molecular water-absorbing resin layer is 30-80 meshes;
the fiber raw material of the fluff pulp layer is any one or more of softwood, hardwood and non-wood fiber.
10. An absorbent sanitary article, characterized in that it comprises an absorbent core according to any of claims 1 to 9.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499192A (en) * | 2021-07-16 | 2021-10-15 | 诺宸股份有限公司 | Ultrathin sanitary towel for puerperium |
| CN114081723A (en) * | 2021-11-22 | 2022-02-25 | 诺宸股份有限公司 | Sanitary article |
| CN116999247A (en) * | 2023-09-01 | 2023-11-07 | 露乐健康科技股份有限公司 | A kind of high-absorbent core and sanitary products |
-
2020
- 2020-04-24 CN CN202020637414.6U patent/CN212997040U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499192A (en) * | 2021-07-16 | 2021-10-15 | 诺宸股份有限公司 | Ultrathin sanitary towel for puerperium |
| CN113499192B (en) * | 2021-07-16 | 2022-05-31 | 诺宸股份有限公司 | Ultrathin sanitary towel for puerperium |
| CN114081723A (en) * | 2021-11-22 | 2022-02-25 | 诺宸股份有限公司 | Sanitary article |
| CN116999247A (en) * | 2023-09-01 | 2023-11-07 | 露乐健康科技股份有限公司 | A kind of high-absorbent core and sanitary products |
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