Absorbent product with fast absorption and anti-reverse seepage structure

Abstract

The utility model discloses an absorbent product with a fast absorption and anti-reverse osmosis structure, the absorbent structure comprises a surface layer, an absorbent core and a leakproof bottom layer stacked from top to bottom, a hydrophilic layer is sandwiched between the surface layer and the absorbent core, the surface layer is a weakly hydrophilic non-woven fabric, the hydrophilic layer guides water molecules and liquid in the surface layer to quickly pass through the surface layer downward to contact the absorbent core to achieve efficient single-point infiltration, and the hydrophilic layer can also guide the liquid to move toward the surroundings along the end surface of the core and toward the side of the core, avoiding the situation that after the local part of the absorbent core absorbs enough urine, the urine cannot be absorbed in time to cause reverse osmosis and dampness, and the water-absorbing particles distributed on the fluffy layer can still maintain a good diversion effect after absorbing water, preventing the core layer from locally forming gel blockage due to excessive liquid absorption, reducing the difficulty of liquid infiltration.

Description

Technical Field

[0001] The utility model relates to the technical field of absorbent products, in particular to an absorbent product with a rapid absorption and anti-reverse seepage structure. Background Art

[0002] Diapers are an indispensable product in infant care. They are easy to use and hygienic, so they are very popular. However, existing diapers have a slow absorption speed and are prone to clump after absorbing liquid or leak when the absorption amount is large. The slow absorption speed makes it impossible for the liquid to be absorbed in time, causing the user's skin to become moist and causing discomfort.

[0003] In the existing diaper absorption core, the core is generally a large piece of fluffy cotton uniformly rich in high-molecular water-absorbing materials, which has strong water absorption and water-locking properties, but weak infiltration ability. Therefore, after the surface layer of the absorption core has fully absorbed enough urine, it takes a certain amount of time for the urine to seep into the surrounding area. If the baby excretes a lot of urine at one time, or the urine is too concentrated, the local surface layer cannot absorb the urine in time, and the urine will stay in the diaper for a certain period of time. The urine cannot be absorbed quickly, causing the user's skin to become moist, thereby affecting the skin of the baby's buttocks and causing allergic rashes, etc. It is intended to make improvements to the problems of slow absorption and damp surface of existing diapers. Utility Model Content

[0004] In view of the technical defects existing in the background technology, the utility model proposes an absorbent product with a rapid absorption and anti-reverse osmosis structure, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0005] An absorbent product with a fast-absorbing anti-reverse osmosis structure comprises an absorbent structure and a waist structure connected to the end of the absorbent structure, wherein the waist structure comprises an inner layer, an outer layer and a waist cavity, the end of the absorbent structure extends into the waist cavity, the absorbent structure comprises a surface layer, an absorbent core and a leak-proof bottom layer stacked from top to bottom, both side edges of the absorbent core are aligned and provided with leak-proof partition edges, a hydrophilic layer is sandwiched between the surface layer and the absorbent core, the middle part of the top end surface of the hydrophilic layer is partially in contact with the surface layer, and the side edges extend downward along both sides of the width direction of the absorbent core to cover the side edges of the absorbent core, the absorbent core is composed of a core upper layer, a fluffy layer and a core lower layer, and the outer edges of the core upper layer and the core lower layer are bonded to cover the fluffy layer.

[0006] As an improvement of the above scheme, the surface layer includes a hot air non-woven fabric layer composed of PP fibers, the hydrophilic layer includes one or more of cotton fibers, viscose fibers or bamboo fibers arranged irregularly, and the side edge of the surface layer is fixed to the end face of the hydrophilic layer by glue.

[0007] As an improvement of the above scheme, the upper layer of the core is composed of one or more of hot air non-woven fabrics, spunbond non-woven fabrics, and spunlace fabrics stacked together, the fluffy layer is a 2D-10D ES fiber mixture arranged irregularly to form a fluffy non-woven fabric, and the lower layer of the core is wood pulp spunlace fabric.

[0008] As an improvement of the above solution, a first water-absorbing particle layer is bonded to the end surface of the fluffy layer facing the upper layer of the core, and a second water-absorbing particle layer is bonded to the end surface of the fluffy layer facing the lower layer of the core.

[0009] As an improvement of the above scheme, the waist structure is composed of at least one non-woven fabric folded in an inverted U shape and clamped at the end of the absorbent structure. After folding, the side close to the human body forms an inner layer, and the side away from the human body forms an outer layer, and a waist cavity with an opening facing the end of the absorbent structure is formed between the inner layer and the outer layer.

[0010] As an improvement of the above solution, the leakproof partition is formed by folding a single water-repellent non-woven fabric, the bottom end of the leakproof partition is bent toward the middle of the absorbent structure, and extends into the absorbent core and the leakproof bottom layer to be bonded and fixed.

[0011] As an improvement of the above-mentioned scheme, the leakage-proof bottom layer includes a PE layer and a bottom non-woven fabric, the width dimension of the PE layer does not exceed the width dimension of the bottom non-woven fabric, the PE layer and the bottom non-woven fabric are bonded and fixed, and the position where the leakage-proof partition edge is bonded to the leakage-proof bottom layer does not exceed the side edge of the PE layer.

[0012] The beneficial effects of the utility model are as follows: the surface layer is a weakly hydrophilic non-woven fabric, and a hydrophilic layer is arranged below the surface layer, and the water molecules and liquid in the surface layer are guided by the hydrophilic layer to quickly pass through the surface layer downward to contact the absorption core to realize efficient single-point infiltration, and the hydrophilic layer can also guide the liquid to move toward the surroundings along the end surface of the core and toward the side of the core, thereby avoiding the situation that after the absorption core partially absorbs enough urine, the urine cannot be absorbed in time and reverse osmosis and dampness are caused. After absorbing water, the water-absorbing particles distributed on the fluffy layer can still maintain a good diversion effect, thereby preventing the core layer from locally forming gel blockage due to excessive liquid absorption, and reducing the difficulty of liquid infiltration. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the absorption structure and waist structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the structure of the absorption structure of the utility model in the thickness direction.

[0015] Figure 3 It is a schematic diagram of the structure of the absorbent core in the thickness direction of the utility model.

[0016] Among them: absorption structure 1, waist structure 2, inner layer 201, outer layer 202, waist cavity 203, surface layer 3, absorption core 4, core upper layer 401, fluffy layer 402, core lower layer 403, first water-absorbent particle layer 404, second water-absorbent particle layer 405, leak-proof bottom layer 5, PE layer 501, bottom non-woven fabric 502, leak-proof partition 6, hydrophilic layer 7. DETAILED DESCRIPTION

[0017] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0018] like Figure 1 and Figure 2 As shown, an absorbent product with a fast absorption and anti-reverse osmosis structure comprises an absorbent structure 1 and a waist structure 2 connected to the end of the absorbent structure 1, wherein the waist structure 2 comprises an inner layer 201, an outer layer 202 and a waist cavity 203, and the end of the absorbent structure 1 extends into the waist cavity 203, and the absorbent structure 1 comprises a surface layer 3, an absorbent core 4 and a leakproof bottom layer 5 stacked from top to bottom, and leakproof partition edges 6 are arranged on both sides of the absorbent core 4 in alignment, and a hydrophilic layer 7 is sandwiched between the surface layer 3 and the absorbent core 4, and the middle part of the top end face of the hydrophilic layer 7 is partially in contact with the surface layer 3, and the side edges extend downward along both sides of the width direction of the absorbent core 4 to cover the side edges of the absorbent core 4, and the absorbent core 4 is composed of a core upper layer 401, a fluffy layer 402 and a core lower layer 403, and the outer edges of the core upper layer 401 and the core lower layer 403 are bonded to cover the fluffy layer 402.

[0019] like Figure 2 As shown, in the structure of the utility model, the absorption structure 1 includes a surface layer 3, a hydrophilic layer 7, an absorption core 4 and a leak-proof bottom layer 5 arranged from top to bottom. The surface layer 3 is a weakly hydrophilic layer 7. The absorption speed and moisture absorption performance of the hydrophilic layer 7 are better than those of the surface layer 3. When the diaper product is used, the surface layer 3 will contact or fit the user's skin from time to time for a long time. By arranging the hydrophilic layer 7 under the surface layer 3, the liquid can efficiently infiltrate at a single point, the diffusion area is not large, the wet area is effectively controlled, and the damp feeling is reduced.

[0020] In one embodiment of the present invention, the surface layer 3 is a PP hot air non-woven fabric layer, and the hydrophilic layer 7 is a cotton fiber layer. The hydrophilicity of PP fiber is lower than that of cotton fiber. Cotton fiber is a porous material with good moisture absorption and air permeability. Its internal porous structure enables it to quickly absorb and retain moisture, and there are many hydrophilic genes (—OH) on its cellulose macromolecules, which can effectively absorb sweat and urine on the baby's buttocks and keep the baby's buttocks dry and breathable.

[0021] Furthermore, in the above scheme, the surface layer 3 includes a hot air non-woven fabric layer composed of PP fibers, the hydrophilic layer 7 includes one or more of cotton fibers, viscose fibers or bamboo fibers arranged irregularly, and the side of the surface layer 3 and the end face of the hydrophilic layer 7 are fixed by glue.

[0022] like Figure 2 As shown, in terms of structure, a hydrophilic layer 7 is sandwiched between the surface layer 3 and the absorbent core 4 of the utility model. The surface layer 3 is a hot air non-woven fabric with the characteristics of softness and breathability. The side edges of the hydrophilic layer 7 are bent and extended downward along the side edges of the absorbent core 4. The hydrophilic layer 7 guides the liquid and water molecules to quickly pass through the surface layer 3 and penetrate into the absorbent core 4. At the same time, the hydrophilic layer 7 guides the liquid to be diverted and absorbed along the end face of the absorbent core 4 toward the outer edge of the absorbent core 4. Part of the liquid is diverted along the edge of the hydrophilic layer 7 to the lower core layer 403 of the absorbent core 4, and is absorbed by the second water-absorbing particle layer 405 on the back of the fluffy layer 402. The liquid is diverted to speed up the absorption speed of the core, thereby avoiding the situation where the urine cannot be absorbed in time after the absorbent core 4 has partially absorbed enough urine, resulting in reverse osmosis and dampness.

[0023] like Figure 3 As shown, in the structure of the utility model, the absorbent core 4 includes a core upper layer 401, a fluffy layer 402 and a core lower layer 403, the end surface of the fluffy layer 402 facing the core upper layer 401 is adhered with a first water-absorbing particle layer 404, and the end surface of the fluffy layer 402 facing the core lower layer 403 is adhered with a second water-absorbing particle layer 405, and the super absorbent resins in the first water-absorbing particle layer 404 and the second water-absorbing particle layer 405 are respectively bonded and fixed to the end surfaces on both sides of the fluffy layer 402 by atomizing glue. When the liquid penetrates and guides from top to bottom through the hydrophilic layer 7, it is preferentially absorbed by the first water-absorbing particle layer 404, and the hydrophilic layer 7 simultaneously guides the liquid to move around and toward the side of the core along the end surface of the core, and the second water-absorbing particle layer 405 absorbs the guided liquid, thereby avoiding the formation of gel blockage after the local absorption of sufficient urine by the absorbent core 4, and reducing the difficulty of liquid seepage.

[0024] Furthermore, in the above scheme, the core upper layer 401 is composed of one or more of hot air non-woven fabrics, spunbond non-woven fabrics, and spunlace fabrics stacked together, the fluffy layer 402 is a 2D-10D ES fiber mixture arranged irregularly to form a fluffy non-woven fabric, and the core lower layer 403 is wood pulp spunlace fabric.

[0025] Furthermore, in the above scheme, the waist structure 2 is composed of at least one non-woven fabric folded in an inverted U shape and clamped at the end of the absorbent structure 1. After folding, the side close to the human body forms an inner layer 201, and the side away from the human body forms an outer layer 202, and a waist cavity 203 with an opening toward the end of the absorbent structure 1 is formed between the inner layer 201 and the outer layer 202.

[0026] Furthermore, in the above scheme, the leakproof partition 6 is formed by folding a single water-repellent non-woven fabric, the bottom end of the leakproof partition 6 is bent toward the middle of the absorbent structure 1, and extends into the space between the absorbent core 4 and the leakproof bottom layer 5 to be bonded and fixed.

[0027] Furthermore, in the above scheme, the leakage-proof bottom layer 5 includes a PE layer 501 and a bottom non-woven fabric 502, the width dimension of the PE layer 501 does not exceed the width dimension of the bottom non-woven fabric 502, the PE layer 501 and the bottom non-woven fabric 502 are bonded and fixed, and the position where the leakage-proof partition edge 6 is bonded to the leakage-proof bottom layer 5 does not exceed the side edge of the PE layer 501.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An absorbent product with a fast-absorbing anti-reverse seepage structure, characterized in that: The invention comprises an absorbent structure (1) and a waist structure (2) connected to the end of the absorbent structure (1), wherein the waist structure (2) comprises an inner layer (201), an outer layer (202) and a waist cavity (203), the end of the absorbent structure (1) extends into the waist cavity (203), the absorbent structure (1) comprises a surface layer (3), an absorbent core (4) and a leakproof bottom layer (5) stacked from top to bottom, the two side edges of the absorbent core (4) are aligned and provided with leakproof partition edges (6), the surface layer (3) ) and the absorbent core (4), a hydrophilic layer (7) is sandwiched between the top end surface and the middle part of the hydrophilic layer (7) is partially in contact with the surface layer (3), and the side edges extend downward along both sides of the width direction of the absorbent core (4) to cover the side edges of the absorbent core (4), and the absorbent core (4) is composed of a core upper layer (401), a fluffy layer (402) and a core lower layer (403), and the outer edges of the core upper layer (401) and the core lower layer (403) are bonded to cover the fluffy layer (402).

2. The absorbent product with a fast-absorbing anti-reverse seepage structure according to claim 1, characterized in that: The surface layer (3) comprises a hot air non-woven fabric layer composed of PP fibers, and the hydrophilic layer (7) comprises one or more of cotton fibers, viscose fibers or bamboo fibers arranged irregularly. The side edge of the surface layer (3) and the end surface of the hydrophilic layer (7) are bonded and fixed by glue.

3. The absorbent product with a fast-absorbing anti-reverse seepage structure according to claim 1, characterized in that: The core upper layer (401) is composed of one or more of hot air non-woven fabric, spunbond non-woven fabric, and spunlace fabric stacked together, the fluffy layer (402) is a fluffy non-woven fabric formed by a mixture of 2D-10D ES fibers arranged irregularly, and the core lower layer (403) is a wood pulp spunlace fabric.

4. The absorbent product with a fast-absorbing anti-reverse seepage structure according to claim 1, characterized in that: A first water-absorbing particle layer (404) is bonded to the end surface of the fluffy layer (402) facing the core upper layer (401), and a second water-absorbing particle layer (405) is bonded to the end surface of the fluffy layer (402) facing the core lower layer (403).

5. The absorbent product with a fast-absorbing anti-reverse seepage structure according to claim 1, characterized in that: The waist structure (2) is composed of at least one non-woven fabric folded in an inverted U shape and sandwiched at the end of the absorbent structure (1); after the folding, the side close to the human body forms an inner layer (201), and the side away from the human body forms an outer layer (202); and a waist cavity (203) with an opening facing the end of the absorbent structure (1) is formed between the inner layer (201) and the outer layer (202).

6. The absorbent product with a fast-absorbing anti-reverse seepage structure according to claim 1, characterized in that: The leakproof partition (6) is formed by integrally folding a single water-repellent non-woven fabric, the bottom end of the leakproof partition (6) is bent toward the middle of the absorbent structure (1), and extends into between the absorbent core (4) and the leakproof bottom layer (5) to be bonded and fixed.

7. The absorbent product with a fast-absorbing anti-reverse seepage structure according to claim 1, characterized in that: The leakproof bottom layer (5) comprises a PE layer (501) and a bottom non-woven fabric (502); the width of the PE layer (501) does not exceed the width of the bottom non-woven fabric (502); the PE layer (501) and the bottom non-woven fabric (502) are bonded and fixed to each other; and the position at which the leakproof partition (6) is bonded to the leakproof bottom layer (5) does not exceed the side edge of the PE layer (501).

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