Paper diaper with improved absorption and leakage-proof performance

Abstract

The utility model relates to the field of disposable hygienic products, in particular to a paper diaper with improved absorption and leakage-proof performance, which mainly solves the problem that a core body of an existing paper diaper is poor in three-dimensional suspension effect, a body comprises a liquid-permeable surface layer, an absorption part, a liquid-tight bottom layer and a leakage-proof partition edge, and the absorption part comprises a first absorption part and a pair of second absorption parts. The pair of second absorption parts is arranged on one side of the upper surface of the first absorption part and located on the edge areas of the two transverse sides of the first absorption part respectively, the liquid-permeable surface layer is widened and wraps the first absorption part and the second absorption parts in a reverse U shape, the front end and the rear end are intermittently glued and folded to form the three-dimensional U-shaped core body, the absorption area of a product is increased, and the leakage-proof performance of the product is improved.

Description

Technical Field

[0001] The utility model relates to the field of disposable sanitary products, in particular to a diaper with improved absorption and leakage prevention performance. Background Art

[0002] A diaper is a commonly used daily necessity for infants, which is used to absorb and store the urine of infants to keep them dry and comfortable.

[0003] Chinese Patent Application No.: CN108210175A, discloses a floating double-core diaper pants, including a diaper pants body, the diaper pants body includes two absorbent bodies, namely a first absorbent body and a second absorbent body, the first absorbent body is partially connected to the second absorbent body, so that the first absorbent body is in a floating state, and a three-dimensional leakage prevention edge is provided. This diaper pants has a certain absorption and leakage prevention effect, but due to the front and back bonding of the core structure to the bottom film, an effective three-dimensional floating effect is not formed. Summary of the Utility Model

[0004] The main purpose of the utility model is to overcome the shortcomings of the prior art, and provide a diaper with improved absorption and leakage prevention performance and a diaper with a three-dimensional U-shaped effect.

[0005] The utility model adopts the following technical scheme: A diaper with improved absorption and leakage prevention performance, including a body, the body has a longitudinal direction in the length direction and a transverse direction in the width direction, the body includes a front end, a middle part and a rear end, the body includes a liquid-permeable surface layer, an absorption part, a liquid-impermeable bottom layer and a leakage prevention edge, characterized in that: the absorption part includes a first absorption part and a pair of second absorption parts, the pair of second absorption parts are arranged on one side of the upper surface of the first absorption part and are respectively located in the transverse two-side edge areas of the first absorption part, the liquid-permeable surface layer covers at least the upper surface of the first absorption part, the upper surface of the second absorption part and the lower surface of the second absorption part, at both ends of the absorption part in the longitudinal direction, the first absorption part and the second absorption part are joined together through a first joining area.

[0006] Further, the liquid-permeable surface layer also covers a part of the lower surface of the first absorption part and is joined to the upper surface of the liquid-impermeable bottom layer.

[0007] Further, the second absorption part is wrapped by a liquid-permeable wrapping layer and is connected to the first absorption part through the liquid-permeable wrapping layer.

[0008] Further, an absorbent part elastic telescopic body extending longitudinally is arranged at the edge position of the second absorption part located on the inner side in the transverse direction.

[0009] Further, a leak-proof edge elastic expansion body is provided in the leak-proof edge, and the stretching ratio of the absorption part elastic expansion body is smaller than that of the leak-proof edge elastic expansion body.

[0010] Further, at the longitudinal two ends of the absorption part, the second absorption part and the leak-proof edge are joined together through a second joining area.

[0011] Further, both the first absorption part and the second absorption part contain liquid-absorbing materials, and the grammage of the liquid-absorbing material of the second absorption part is smaller than that of the liquid-absorbing material of the first absorption part.

[0012] As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. On the basis of the existing diaper products, the liquid-permeable wrapping layer is widened, liquid-absorbing materials are applied and sown on both sides and then folded and bonded to form a second absorption part. Then, the first absorption part is compounded to the middle position of the wrapping layer to form a three-part absorption structure with a wide middle and narrow sides. The widened reverse U-shaped liquid-permeable surface layer wraps the first absorption part and the second absorption part, and the front and rear ends are intermittently applied with glue and folded to form a three-dimensional U-shaped core body.

[0014] 2. An elastic expansion body is arranged in the second absorption part, so that the second absorption part shrinks and stands up through the elastic expansion body, improving the three-dimensional U-shaped effect of the absorption part and enhancing the absorption area and leak-proof performance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of this embodiment (the state when the diaper is straightened in the figure);

[0016] Figure 2 For Figure 1 the sectional view taken along line A-A of

[0017] Figure 3 For Figure 1 the sectional view taken along line B-B of

[0018] Figure 4 For Figure 1 the schematic structural diagram of the liquid-permeable surface layer;

[0019] Figure 5 For Figure 1 the schematic structural diagram of the leak-proof edge;

[0020] Figure 6 It is a schematic diagram of the manufacturing process flow of this embodiment;

[0021] In the figure, 1 is the main body, 11 is the front end, 12 is the middle part, 13 is the rear end, 2 is the liquid-permeable surface layer, 3 is the absorption part, 30 is the elastic expansion body of the absorption part, 31 is the first absorption part, 32 is the second absorption part, 4 is the liquid-permeable wrapping layer, 5 is the liquid-impermeable bottom layer, 6 is the leakage-proof side edge, 60 is the elastic expansion body of the leakage-proof side edge, 71 is the first joint area, and 72 is the second joint area. Detailed implementation mode

[0022] The following further describes the present utility model through specific implementation modes.

[0023] Reference Figures 1-5 , a diaper with improved absorption and leakage-proof performance in this embodiment is of an open-close pants type. In other embodiments, it can also be of a pull-up pants type. The diaper includes a main body 1, and the main body is defined as having a longitudinal direction in the length direction and a transverse direction in the width direction. The main body includes a front end 11, a middle part 12, and a rear end 13 in the length direction. The front end 11 is the area configured at the relatively front end of the wearer during wearing, the rear end 13 is the area configured at the relatively rear end of the wearer, and the middle part 12 is the area located between the front end and the rear end. The following surface layer materials all have an upper surface close to the skin side and a lower surface far from the skin side.

[0024] The main body 1 includes a liquid-permeable surface layer 2, an absorption part 3, a liquid-impermeable bottom layer 5, and a leakage-proof side edge 6. The absorption part 3 includes a first absorption part 31 and a pair of second absorption parts 32. The pair of second absorption parts 32 are arranged on one side of the upper surface of the first absorption part 31 and are respectively located in the lateral edge areas on both sides of the first absorption part 31.

[0025] The liquid-permeable surface layer 2 covers at least the upper surface of the first absorption part 31, the upper surface of the second absorption part 32, and the lower surface of the second absorption part 32. The liquid-permeable surface layer 2 also covers a part of the lower surface of the first absorption part 31 and is joined to the upper surface of the liquid-impermeable bottom layer 5.

[0026] At both longitudinal ends of the absorption part 3, the first absorption part 31 and the second absorption part 32 are joined together through the first joint area 71. Specifically, the first absorption part 31 and the covered liquid-permeable surface layer are joined to the second absorption part 32 and the covered liquid-permeable surface layer through the first joint area 71. The first joint area 71 can be formed by hot melting or bonding. In this embodiment, the first joint area 71 adopts the bonding method. In actual production, glue is applied on the liquid-permeable surface layer 2 on the lower surface of the second absorption part 32 and / or on the upper surface of the liquid-permeable surface layer on the first absorption part 31. As Figure 4 shown, glue is applied on the upper surface of the liquid-permeable surface layer 2 on the first absorption part 31.

[0027] The second absorbent portion 32 is wrapped by a liquid-permeable wrapping layer 4 and is connected to the first absorbent portion 31 through the liquid-permeable wrapping layer 4. In this embodiment, the second absorbent portion 32 is wrapped and bonded by hot melt adhesive or ultrasonic pressing process, and the first absorbent portion 31 is joined to the middle area of the liquid-permeable wrapping layer 4.

[0028] An absorbent portion elastic stretchable body 30 extending longitudinally is provided at the edge position of the second absorbent portion 32 located on the inner side in the transverse direction. Under the action of the absorbent portion elastic stretchable body 30, the second absorbent portion 32 can contract and stand up in the length direction, improving the three-dimensional U-shaped effect of the absorbent portion.

[0029] A leak-proof edge elastic stretchable body 60 is provided in the leak-proof edge 6, and the stretching ratio of the absorbent portion elastic stretchable body 30 is less than the stretching ratio of the leak-proof edge elastic stretchable body 60.

[0030] At the longitudinal two ends of the absorbent portion, the second absorbent portion 32 and the leak-proof edge 6 are joined together through a second joining area 72. In this embodiment, the second joining area 72 is in an adhesive bonding manner. In actual production, glue is applied on the upper surface of the second absorbent portion 32 and / or on the lower surface of the leak-proof edge 6 on the liquid-permeable surface layer. As Figure 5 shown, glue is applied on the lower surface of the leak-proof edge 6.

[0031] In this embodiment, the longitudinal length of the front end 11 of the first joining area 71 and the second joining area 72 is not greater than the longitudinal length of the rear end 12.

[0032] The projections of the first joining area 71 and the second joining area 72 have an overlapping area. In this embodiment, the planar projection areas of the first joining area 71 and the second joining area 72 coincide.

[0033] Based on the existing diaper products, the liquid-permeable wrapping layer 4 is widened, and absorbent materials are applied with glue and sown on both sides, then folded and bonded to form the second absorbent portion 32. Then the first absorbent portion 31 is compounded to the middle position of the liquid-permeable wrapping layer 4 to form a three-part absorbent structure with a wide middle and narrow sides. The widened reverse U-shaped liquid-permeable surface layer 2 wraps the first absorbent portion 31 and the second absorbent portion 32, and intermittent glue application and folding are performed at the front and rear ends to form a three-dimensional U-shaped core body.

[0034] Both the first absorbent portion 31 and the second absorbent portion 32 contain absorbent materials, and in this embodiment, polymers are used. Preferably, the first absorbent portion 31 comprises a five-layer structure, which are, from top to bottom: upper layer material, upper layer polymer, fluffy non-woven fabric, lower layer material, and lower layer polymer. In this embodiment, the gram weight of the absorbent material of the second absorbent portion 32 is less than the gram weight of the absorbent material of the first absorbent portion 31.

[0035] In this embodiment, the diaper further includes a waist portion.

[0036] The liquid-impermeable bottom layer 5 includes a liquid-impermeable bottom layer, a non-woven fabric of the liquid-impermeable bottom layer, and a leak-proof border of the bottom layer.

[0037] Reference Figure 6 , the preparation method of the disposable diaper of this embodiment is as follows: 1. Input the liquid-permeable wrapping layer 4, configure the elastic body 30 at the folding line position of the liquid-permeable wrapping layer 4, apply glue and spread polymers on both sides, and use hot melt adhesive or ultrasonic pressing process for folding and bonding. 2. Produce the first absorption part 31 and laminate the first absorption part 31 to the middle area of the liquid-permeable wrapping layer 4. 3. Input the liquid-permeable surface layer 2, cover it on the surface of the absorption part 3 and fold it downward. 4. Spray glue treatment is carried out at the first joint area 71 of the liquid-permeable surface layer 2, and the second absorption part 32 is folded upward. 5. Produce the leak-proof border 6, carry out spray glue treatment at the second joint area 72 of the leak-proof border 6, and cover it above the second absorption part 32. 6. Produce the liquid-impermeable bottom layer 5 and laminate it with the absorption part 3, and form the main body 1 after laminating with the waist part.

[0038] The above are only several specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantive modification made to the present invention using this concept shall fall within the scope of infringement of the protection scope of the present invention.

Claims

1. A disposable diaper with improved absorption and leak prevention performance, comprising a body. The body has a longitudinal direction in the length direction and a transverse direction in the width direction. The body includes a front end, a middle part, and a rear end. The body includes a liquid-permeable surface layer, an absorption part, a liquid-impermeable bottom layer, and a leak-proof side margin, and is characterized in that: The absorption part includes a first absorption part and a pair of second absorption parts. The pair of second absorption parts are arranged on one side of the upper surface of the first absorption part and are respectively located in the lateral two-edge regions of the first absorption part. The liquid-permeable surface layer covers at least the upper surface of the first absorption part, the upper surface of the second absorption part, and the lower surface of the second absorption part. At both longitudinal ends of the absorption part, the first absorption part and the second absorption part are joined together through a first joining area.

2. The disposable diaper for improving absorption and leakage prevention performance according to claim 1, wherein: The liquid-permeable surface layer also covers part of the lower surface of the first absorption part and is joined to the upper surface of the liquid-impermeable bottom layer.

3. The disposable diaper with improved absorption and leak prevention performance according to claim 1 or 2, characterized in that: The second absorption part is wrapped by a liquid-permeable wrapping layer and is connected to the first absorption part through the liquid-permeable wrapping layer.

4. The disposable diaper with improved absorption and leak prevention performance according to claim 3, characterized in that: An absorption part elastic expansion body extending longitudinally is provided at the edge position of the second absorption part located on the inner side in the transverse direction.

5. The disposable diaper with improved absorption and leakage prevention performance according to claim 4, characterized in that: The leakage-proof side edge is provided with a leakage-proof side edge elastic expansion body, and the stretching ratio of the absorption part elastic expansion body is less than the stretching ratio of the leakage-proof side edge elastic expansion body.

6. The disposable diaper for improving absorption and leakage prevention performance according to claim 5, wherein: At both longitudinal ends of the absorption part, the second absorption part and the leakage-proof side edge are joined together through a second joining area.

7. The disposable diaper for improving absorption and leakage prevention performance according to claim 6, characterized in that: Both the first absorption part and the second absorption part contain liquid-absorbing materials, and the grammage of the liquid-absorbing material of the second absorption part is less than the grammage of the liquid-absorbing material of the first absorption part.

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