Composite core body, hygienic product and paper diaper thereof

Abstract

The utility model relates to the field of hygienic products, in particular to a composite core body, a hygienic product and a paper diaper thereof, which comprises a composite body, the composite body comprises an upper surface layer, a lower surface layer and a water absorbing material layer, and the water absorbing material layer is located between the upper surface layer and the lower surface layer; the left end and the right end of the composite body are folded towards the same side of the composite body to form folding parts, the ends of the two folding parts are opposite, and a gap is formed between the ends of the two folding parts and serves as a flow guide channel. According to the scheme, the core body with the structure different from that in the prior art is provided, the flow guide channel forming mode of the core body is different from that in the prior art, and meanwhile the core body is not prone to breakage.

Description

Technical Field

[0001] This utility model relates to the field of hygiene products, specifically to a composite core, hygiene products and their diapers. Background Technology

[0002] Currently, hygiene products mainly include sanitary napkins, diapers, and pull-ups, which are used to absorb urine or menstrual blood and other excrement. The absorbent core is an important component of hygiene products, primarily used to absorb liquid excrement.

[0003] Traditional absorbent cores are filled with fluff pulp to absorb liquids. Currently, to increase the amount of liquid absorbed, absorbent cores are generally filled with absorbent materials such as superabsorbent resin, which enhances the absorbency and retention of liquids.

[0004] To ensure that liquid waste is promptly absorbed by the absorbent core after being excreted from the body, combined with... Figure 2 As shown, the absorbent core 2 is provided with a flow channel 3, so that the liquid excrement discharged by the human body can be transferred in a timely manner in the horizontal (length direction of the flow channel 3) and vertical (depth direction of the flow channel 3) direction through the flow channel 3, thereby allowing the liquid to spread on the absorbent core 2 and ensuring the absorption of liquid excrement by the absorbent core 2.

[0005] The existing method for preparing an absorber core with a flow channel is as follows: combining Figure 2 As shown, absorbent materials such as water-absorbing resin are spread downwards, while a blocking element 4 (such as cloth) is used above the pre-formed flow channel 3 to block it. Due to the blocking of the blocking element 4, less absorbent material is spread and falls below the blocking element 4, resulting in a thinner thickness. However, the left and right sides of the blocking element 4 are not blocked, resulting in more absorbent material falling on the sides of the blocking element 4, resulting in a thicker thickness. This makes the middle part of the final formed absorbent core 2 thinner, while the left and right sides are thicker. The thinner part forms the flow channel 3.

[0006] The absorbent core formed using this method has the following disadvantages: Since all the absorbent resin is concentrated in the absorbent core, the absorbent core is more brittle and prone to breakage. This is especially true for absorbent cores with a larger weight, where the absorbent resin content is even higher. In order to improve the absorbency of the absorbent core, some manufacturers may increase the amount of absorbent resin used. While increasing the absorbent resin content can improve absorbency, it also makes the absorbent core more prone to breakage, which will affect the quality and use of the hygiene products. Utility Model Content

[0007] The present invention aims to provide a composite core, sanitary products and diapers thereof, to provide a core with a different structure from the prior art, the flow channel of the core is formed differently from the prior art, and the core is not easy to break.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a composite core, comprising a composite body, the composite body comprising an upper surface layer, a lower surface layer and a water-absorbing material layer, the water-absorbing material layer being located between the upper surface layer and the lower surface layer;

[0009] The left and right ends of the composite are folded towards the same side of the composite to form folded sections. The ends of the two folded sections are opposite each other, and there is a gap between the ends of the two folded sections, which serves as a flow channel.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: a hygiene product, including a composite core as described in this application.

[0011] To achieve the above objectives, the present invention adopts the following technical solution: a diaper, comprising a diaper body and a composite core as described in this application.

[0012] The principle and advantages of this application are as follows: the water-absorbing material layer of the composite in this application is a water-absorbing material used to absorb liquid, and the upper and lower surface layers are located on both sides of the water-absorbing material layer, thereby wrapping and protecting the water-absorbing material.

[0013] The composite core in this application is formed by flipping the left and right ends of the composite towards the same side of the composite to form a folded portion. The two ends of the folded portion are opposite each other, and the gap between the two ends of the folded portion serves as a flow channel. Therefore, this application provides a flow channel forming method that is different from the prior art. That is, it provides a core containing a flow channel formed by folding, instead of forming a core containing a flow channel by blocking and spreading.

[0014] Meanwhile, the core prepared by flipping is stacked together with the middle part of the composite after the folded part is flipped. The surface layer opposite the folded part and the middle part is located in the middle of the composite stack. Compared with the existing technology, there are at least two more surface layers in the core. The extra surface layers in the core play a reinforcing role, making the core less prone to breakage and improving the quality of the core.

[0015] Preferably, as an improvement, the folding angle of the left and right ends of the composite is 135-180 degrees.

[0016] Preferably, as an improvement, the folded portion is flipped and attached to the side of the middle part of the composite. Thus, after the folded portion is flipped, there is no gap between the folded portion and the middle part of the composite, and the folded portion is tightly attached to the side of the middle part of the composite. The composite core with this structure has only the composite and no other structures, resulting in a relatively small weight and a relatively thin core, thus making it a low-weight composite core.

[0017] Preferably, as an improvement, after the folded portion is flipped, there is a gap between it and the middle part of the composite, and the gap is filled with a liquid-absorbing filler. Of course, after the folded portion is flipped, there can also be a gap between the folded portion and the middle part of the composite, meaning that the folded portion and the middle part of the composite are not in contact, and the gap is filled with a liquid-absorbing filler. Compared to a composite core formed by directly flipping the composite, the composite core with this structure is thicker (to avoid a thinner composite core at the flow channel), thereby increasing the weight of the composite core and its liquid absorption capacity. In this case, the composite core is a high-weight model.

[0018] Preferably, as an improvement, a thickened layer with liquid-absorbing function is attached to the side of the middle portion of the composite away from the folded portion. Of course, in order to increase the basis weight of the composite core, increase the liquid absorption capacity of the composite core, and increase the thickness of the composite core (to avoid the composite core at the flow channel having a small thickness), the folded portion can also be tightly attached to the side of the middle portion of the composite, while a thickened layer with liquid-absorbing function is attached to the side of the middle portion of the composite away from the folded portion.

[0019] Preferably, as an improvement, both the upper and lower surface layers are nonwoven fabrics.

[0020] Preferably, as an improvement, the absorbent material layer includes a water-absorbing resin. The water-absorbing resin, as an absorbent material, can improve the liquid absorption performance of the core.

[0021] Preferably, as an improvement, the thickened layer is absorbent paper. The absorbent paper can be purchased commercially and is directly adhered to the side of the composite core away from the folded part. The composite core is simple to process and easy to manufacture. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a diaper after it has been stretched out.

[0023] Figure 2 This is a schematic diagram of the absorber core and its preparation process in the prior art.

[0024] Figure 3 This is a schematic diagram of the composite structure (before folding).

[0025] Figure 4 This is a schematic diagram of the composite core (after the composite is flipped) in Example 1.

[0026] Figure 5 This is a schematic diagram of the composite core (after the composite is flipped) in Example 2.

[0027] Figure 6 This is a schematic diagram of the composite core (after the composite is flipped) in Example 3. Detailed Implementation

[0028] The following detailed description illustrates the specific implementation method:

[0029] The reference numerals in the accompanying drawings include: 1. pant body; 2. core; 20. absorbent material layer; 21. lower surface layer; 22. upper surface layer; 26. thickened layer; 27. folded part; 3. channel; 4. blocking element; 5. filler; 6. composite.

[0030] Example 1

[0031] The basics are as follows: Figure 1 , Figure 3 , Figure 4 As shown: This embodiment discloses a hygiene product, including a composite core 2 as described in this application. Specifically, the hygiene product is a diaper, including a pant body 1 and a composite core 2 laminated to the crotch area of ​​the pant body 1. This embodiment mainly improves the composite core 2; other structures of the hygiene product are existing technology and will not be described further. Of course, hygiene products are not limited to diapers; they can also include sanitary napkins, pull-up diapers, etc. Any hygiene product using the composite core 2 that absorbs urine or menstrual blood falls under the category of hygiene products.

[0032] The structure and principle of a composite core 2 in this embodiment are described in detail below.

[0033] A composite core 2 includes a composite 6, which comprises an upper surface layer 22, a lower surface layer 21, and an absorbent material layer 20, located between the upper surface layer 22 and the lower surface layer 21. In this embodiment, both the upper surface layer 22 and the lower surface layer 21 are non-woven fabrics, and the absorbent material layer 20 is an absorbent material, including absorbent resin. In other embodiments, it may also include other components, such as wood pulp or plant fibers. The preparation method of the composite 6 in this embodiment is as follows: first, the lower surface layer 21 is laid flat on a workbench; then, the absorbent material is sprinkled on the lower surface layer 21 and covered with the upper surface layer 22; and the ends of the upper surface layer 22 and the lower surface layer 21 are fixed together. The fixing method can be achieved by hot pressing or bonding. In this embodiment, the thickness of the composite 6 is 2-8 mm. The specific thickness of the composite 6 is adjusted according to the basis weight of the composite core 2.

[0034] Combination Figure 3 , Figure 4 As shown, the left and right ends of the composite 6 are folded toward the same side of the composite 6 (the side facing upwards to the surface layer 22 in this embodiment) to form folded portions 27. After the left and right ends of the composite 6 are folded, the ends of the two folded portions 27 are opposite each other, and there is a gap between the ends of the two folded portions 27. The gap serves as a flow channel 3. Figure 4 The width of the middle guide channel 3 is 5-20mm.

[0035] The left and right ends of composite 6 are folded at angles of 135-180 degrees. Figure 4 The folding angle is 180 degrees, so that after the folded part 27 is flipped, it fits into the middle part of the composite 6 (the middle part of the composite 6 is in...). Figure 4 The middle part refers to the remaining part of the composite 6 that has not been folded, which is the part located below the folded part 27 in the figure. Specifically, the upper surface layer 22 of the folded part 27 is attached to and fixed to the upper surface layer 22 of the middle part of the composite 6. The fixing method can be adhesive or hot pressing.

[0036] Therefore, in this embodiment, by flipping the left and right ends of the composite 6, the two ends of the folded portion 27 are opposite to each other, and the gap between the ends of the two folded portions 27 serves as the flow channel 3. Thus, this application provides a flow channel 3 formation method that is different from the prior art, that is, it provides a core 2 containing the flow channel 3 formed by folding.

[0037] Meanwhile, in the composite core 2 with this structure, after the folded part 27 is flipped, the folded part 27 and the middle part of the composite 6 are stacked together. The upper surface layer 22 of the folded part 27 and the upper surface layer 22 of the middle part are located in the middle of the composite stack. Compared with the prior art, the core 2 only contains water-absorbing resin. In this embodiment, the core 2 has at least two more surface layers (the upper surface layer 22 of the folded part 27 and the upper surface layer 22 of the middle part). The upper surface layer 22 and the lower surface layer 21 are non-woven fabrics made of fiber material, which play a reinforcing role for the core 2, making the core 2 less prone to breakage. Especially for composite core 2 with a large basis weight (above 460gsm), the core 2 is less prone to breakage, which greatly improves the quality of the core 2.

[0038] In this embodiment, the composite core 2 has a smaller thickness because the folded part 27 and the middle part of the composite body 6 are attached to each other, resulting in a relatively small basis weight of the composite core 2. For example, the basis weight of the composite core 2 can be controlled between 380-440 gsm.

[0039] Example 2

[0040] Combination Figure 5As shown, a thickened layer 26 with liquid-absorbing function is attached to the middle part of the composite 6 away from the folded part 27. In the figure, the thickened layer 26 is attached to the bottom of the composite core 2 by adhesive bonding or hot pressing. In this embodiment, the thickened layer 26 is absorbent paper, which can be purchased commercially. Therefore, during the preparation of the composite core 2, the absorbent paper can be directly fixed to the bottom of the composite core 2. Of course, in other embodiments, the thickened layer 26 can also be an absorbent pad or other similar product; any thickened layer 26 capable of absorbing liquid is acceptable.

[0041] Therefore, by setting a thickened layer 26 at the bottom of the composite core 2, the thickness of the composite core 2 can be increased, thereby increasing the weight of the composite core 2, increasing the liquid absorption capacity of the composite core 2, and increasing the thickness of the composite core 2 (avoiding the small thickness of the composite core 2 at the flow channel 3, thus solving the problem of low liquid absorption capacity of the composite core due to the small thickness of the composite core 2 at the flow channel 3).

[0042] Example 3

[0043] In Example 1, the side of the folded part 27 and the side of the middle part of the composite 6 are attached together. Of course, the side of the folded part 27 and the side of the middle part of the composite 6 may not be attached together.

[0044] Specifically, combined Figure 6 As shown, after the folding part 27 is folded, there is a gap between the folding part 27 and the middle part of the composite 6. In some embodiments, the flipping angle of the folding part 27 can be less than 180 degrees. The gap is filled with a filler 5 with liquid absorption function. The filler 5 can be absorbent paper. Of course, in other embodiments, absorbent pads or other products can also be used. Any filler 5 that can absorb liquid can be used.

[0045] Therefore, the composite core 2 with this structure, compared to the composite core 6 directly flipped in Example 1, has a thicker composite core 2 (avoiding the thinness of the composite core 2 at the flow channel 3, thus solving the problem of low liquid absorption of the composite core due to the thinness of the composite core 2 at the flow channel 3), thereby increasing the weight of the composite core 2 and increasing the liquid absorption of the composite core 2. At this time, the composite core 2 is a high-weight composite core 2.

[0046] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A composite core, characterized in that: The composite includes an upper surface layer, a lower surface layer, and an absorbent material layer, wherein the absorbent material layer is located between the upper surface layer and the lower surface layer; The left and right ends of the composite are folded toward the same side to form folded portions. The ends of the two folded portions are opposite each other, and there is a gap between the ends of the two folded portions, which serves as a flow channel.

2. The composite core according to claim 1, characterized in that: The left and right ends of the composite are folded at an angle of 135-180 degrees.

3. A composite core according to claim 2, characterized in that: The folded portion, after being flipped over, adheres to the side of the middle part of the composite.

4. A composite core according to claim 2, characterized in that: After the folded part is flipped over, there is a gap between it and the middle part of the composite, and the gap is filled with a filler with liquid absorption function.

5. A composite core according to claim 1, characterized in that: The middle part of the composite, away from the folded part, is fitted with a thickened layer that has liquid absorption function.

6. A composite core according to any one of claims 1-5, characterized in that: Both the upper and lower surface layers are non-woven fabrics.

7. A composite core according to any one of claims 1-5, characterized in that: The absorbent material layer includes absorbent resin.

8. A composite core according to claim 5, characterized in that: The thickened layer is absorbent paper.

9. Hygiene products, characterized in that: Includes a composite core as described in any one of claims 1-8.

10. A diaper, characterized in that: It includes the trouser body and a composite core as described in any one of claims 1-8.

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