An absorbent core with an absorbent space

Abstract

The utility model relates to the technical field of absorbent cores, and proposes an absorbent core with an absorption space provided with a space for expansion of high-molecular water-absorbing particles, comprising an absorbent core layer and a wrapping layer, wherein first bonding portions are arranged at intervals along the front-to-back direction on the inner surface of the wrapping layer, the first bonding portions are glued to the upper surface of the absorbent core layer, the wrapping layer is located between the first bonding portions and is lifted upward to form a convex portion, an absorption space for expansion of high-molecular water-absorbing particles is formed between the convex portion and the upper surface of the absorbent core layer, a high-molecular water-absorbing particle layer is arranged at the bottom of the absorption space, the high-molecular water-absorbing particle layer is uniformly glued to the absorbent core layer, and the left and right sides of the wrapping layer are wrapped and adhered to the lower surface of the absorbent core layer along the contour of the absorbent core layer.

Description

Technical Field

[0001] The utility model relates to the technical field of absorbent cores, in particular to an absorbent core with an absorbent space. Background Art

[0002] Whether it is sanitary napkins, diapers or menstrual pants, the absorbent core mostly uses polymer water-absorbing particles. The polymer water-absorbing particles have good water absorption, large absorption capacity, and can expand several times their own size. Most existing absorbent cores are flat and laid flat between the surface layer and the bottom layer. When the absorbent core is wrapped by the surface layer and the bottom layer, the expansion space of the polymer water-absorbing particles is limited, so that the polymer water-absorbing particles cannot fully absorb liquid.

[0003] This case arises to solve the above problems. Utility Model Content

[0004] Therefore, in view of the above problems, the utility model proposes an absorbent core having an absorption space with a space for expansion of high molecular water-absorbing particles.

[0005] In order to solve the above technical problems, the solution adopted by the utility model is: an absorption core with an absorption space, including an absorption core layer and a wrapping layer, the inner surface of the wrapping layer is provided with first bonding parts at intervals in the front-to-back direction, the first bonding parts are glued to the upper surface of the absorption core layer, the wrapping layer is located between the first bonding parts and is lifted up to form a convex part, an absorption space for the expansion of high molecular water-absorbing particles is formed between the convex part and the upper surface of the absorption core layer, a high molecular water-absorbing particle layer is provided at the bottom of the absorption space, the high molecular water-absorbing particle layer is uniformly glued to the absorption core layer, and the left and right sides of the wrapping layer are wrapped and fitted to the lower surface of the absorption core layer along the contour of the absorption core layer.

[0006] A further improvement is that a second gluing portion is provided on the outer surface of the wrapping layer corresponding to the first gluing portion, and the left side or the right side of the protruding portion is adhered to the second gluing portion.

[0007] A further improvement is that the left and right sides of the absorbent core layer are rolled up toward the upper surface to form side baffles, and the wrapping layer fits the outer contour of the side baffles.

[0008] A further improvement is that the absorbent core layer is a fluff pulp polymer water-absorbent particle layer or an absorbent paper polymer water-absorbent particle layer or a fluffy cotton polymer water-absorbent particle layer.

[0009] A further improvement is that the wrapping layer is a water-absorbent non-woven fabric layer.

[0010] By adopting the above technical solution, the beneficial effects of the utility model are:

[0011] The absorbent core in the present case is composed of an absorbent core layer and a wrapping layer, wherein the wrapping layer forms a plurality of absorbent spaces on the upper surface of the absorbent core layer through a first bonding portion, and a polymer water-absorbent particle layer is laid at the bottom of the absorbent space. The polymer water-absorbent particle layer is used to increase the water absorption capacity of the absorbent core, and the polymer water-absorbent particle layer is used to mainly absorb liquid, so that the thickness of the absorbent core layer can be appropriately reduced to reduce the overall thickness of the absorbent core.

[0012] The absorption space is hollow, which is beneficial to accelerate the infiltration rate of the liquid and increase the air permeability of the absorption core, reducing the feeling of stuffiness during use.

[0013] The polymer water-absorbing particle layer expands when absorbing liquid to form a concave guide channel between the protrusions, further improving the guide effect in the front-to-back direction and the side leakage prevention effect in the left-to-right direction.

[0014] A further beneficial effect is that a second bonding portion is provided on the outer surface of the wrapping layer corresponding to the first bonding portion, and the second bonding layer changes the originally raised portion protruding upward into a raised portion protruding obliquely upward, which is beneficial to avoid wrinkles when the absorbent core is subsequently rolled up and keep the surface of the absorbent core smooth and beautiful; at the same time, it is beneficial for the absorbent core to be able to recover to an upright state after it is rolled up and released, and after being compounded with the surface layer and bottom layer of a sanitary napkin, diaper or menstrual pants.

[0015] A further beneficial effect is that the left and right sides of the absorbent core layer are rolled up with side guards, which can prevent liquid from leaking sideways. More advantageously, the protrusions are prevented from being over-squeezed when the absorbent core is rolled up, and the protrusions can quickly stand up and recover after the absorbent core is released. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the internal structure of an absorbent core with an absorption space according to an embodiment of the utility model.

[0017] Figure 2 for Figure 1 A magnified view of the local structure at point A. DETAILED DESCRIPTION

[0018] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0019] refer to Figure 1 and Figure 2 The embodiment of the utility model discloses an absorbent core with an absorbent space 14, including an absorbent core layer 10 and a wrapping layer 11. The absorbent core layer 10 is a fluff pulp polymer water-absorbing particle layer 15 or a water-absorbing paper polymer water-absorbing particle layer 15 or a fluffy cotton polymer water-absorbing particle layer 15. The wrapping layer 11 is a water-absorbing non-woven fabric layer.

[0020] The inner surface of the wrapping layer 11 is provided with first bonding parts 12 at intervals in the front-to-back direction, and the first bonding parts 12 are bonded to the upper surface of the absorption core layer 10. The wrapping layer 11 is located between the first bonding parts 12 and is lifted up to form a protrusion 13. An absorption space 14 for expansion of polymer water-absorbing particles is formed between the protrusion 13 and the upper surface of the absorption core layer 10. A polymer water-absorbing particle layer 15 is provided at the bottom of the absorption space 14, and the polymer water-absorbing particle layer 15 is uniformly bonded to the absorption core layer 10. The left and right sides of the wrapping layer 11 are wrapped and adhered to the lower surface of the absorption core layer 10 along the contour of the absorption core layer 10.

[0021] The outer surface of the wrapping layer 11 is provided with a second adhesive portion 16 corresponding to the first adhesive portion 12, and the left or right side of the protrusion 13 is attached to the second adhesive portion 16. The second adhesive portion 16 makes the protrusion 13 tilt to one side, reducing wrinkles on the surface of the protrusion 13 after the absorbent core is rolled up, so that the protrusion 13 can still stand up and recover after the absorbent core is released after rolling up, and it is also helpful to keep the surface of the absorbent core flat.

[0022] The left and right sides of the absorbent core layer 10 are rolled up to form side baffles 17, and the wrapping layer 11 fits the outer contour of the side baffles 17. The thickness of the absorbent core layer 10 between the side baffles 17 is smaller than the shielding part, and a rolling gap can be formed when the absorbent core is rolled up to avoid excessive squeezing of the protrusion 13 during rolling. At the same time, it can also hinder the lateral flow of liquid to avoid side leakage.

[0023] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. An absorbent core having an absorbent space, characterized in that: The invention comprises an absorption core layer and a wrapping layer, wherein first bonding parts are arranged at intervals along the front-to-back direction on the inner surface of the wrapping layer, the first bonding parts are glued to the upper surface of the absorption core layer, the wrapping layer is located between the first bonding parts and is lifted upward to form a convex part, an absorption space for expansion of high molecular water-absorbing particles is formed between the convex part and the upper surface of the absorption core layer, a high molecular water-absorbing particle layer is arranged at the bottom of the absorption space, the high molecular water-absorbing particle layer is uniformly glued to the absorption core layer, and the left and right sides of the wrapping layer are wrapped and adhered to the lower surface of the absorption core layer along the contour of the absorption core layer.

2. The absorbent core having an absorbent space according to claim 1, characterized in that: A second gluing portion is disposed on the outer surface of the wrapping layer corresponding to the first gluing portion, and the left side or the right side of the protruding portion is bonded to the second gluing portion.

3. An absorbent core with an absorbent space according to claim 1 or 2, characterized in that: The left and right sides of the absorbent core layer are rolled up toward the upper surface to form side baffles, and the wrapping layer fits the outer contour of the side baffles.

4. An absorbent core with an absorbent space according to claim 1 or 2, characterized in that: The absorbent core layer is a fluff pulp macromolecular water-absorbent particle layer, an absorbent paper macromolecular water-absorbent particle layer, or a fluffy cotton macromolecular water-absorbent particle layer.

5. An absorbent core with an absorbent space according to claim 1 or 2, characterized in that: The wrapping layer is a water-absorbent non-woven fabric layer.

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