Fan-shaped absorption core body and roll material thereof

Abstract

The utility model relates to the technical field of disposable absorbers, and provides a fan-shaped absorption core body and a coil stock thereof, the fan-shaped absorption core body comprises an absorber which is continuously folded to form a continuous M-shaped cross section, and the lower folding angle of the absorber forms a flow guide groove which is used for allowing liquid to flow in and guiding the liquid front and back. The positions, close to the groove bottom, of the two bevel edges of the flow guide groove are mutually glued or ultrasonically welded in the length direction of the absorption core body to form a hollow channel, and an absorption strip is movably arranged in the hollow channel in a penetrating mode.

Description

Technical Field

[0001] The utility model relates to the technical field of disposable absorbent bodies, in particular to a fan-shaped absorbent core and a roll thereof. Background Art

[0002] Disposable absorbent articles such as panty liners, sanitary napkins, diapers, and menstrual pants are made from an absorbent core, a liquid-permeable topsheet, and a liquid-impermeable backsheet. Traditional absorbent cores are flat, and the drainage grooves on the topsheet of disposable absorbent articles are pressed into place when the core, topsheet, and backsheet are combined. Because the drainage grooves are shallow, their drainage effect is limited.

[0003] In order to improve the diversion effect of disposable absorbent articles, this case proposes a fan-shaped absorbent core with built-in diversion grooves. Utility Model Content

[0004] Therefore, in order to solve the above problems, the present invention proposes a fan-shaped absorbent core and a roll thereof.

[0005] In order to solve the above technical problems, the solution adopted by the utility model is: a fan-shaped absorption core, including an absorption body that is continuously folded to form a continuous M-shaped cross-section, the lower folded corner of the absorption body forms a guide groove for liquid to flow into and guide the liquid back and forth, the two folded edges of the guide groove are glued or ultrasonically welded to each other near the bottom of the groove along the length direction of the absorption core to form a hollow channel, and an absorption strip is movably provided in the hollow channel.

[0006] A further improvement is that the two folded edges of the guide groove are glued or ultrasonically welded to each other at intervals along the length direction of the absorbent core near the groove bottom to form a downstream gap.

[0007] A further improvement is that the absorbent body comprises a first liquid-permeable layer, a second liquid-permeable layer, and a first absorbent layer, and the first liquid-permeable layer, the first absorbent layer, and the second liquid-permeable layer are glued together in sequence.

[0008] A further improvement is that the first liquid-permeable layer and the second liquid-permeable layer are hydrophilic non-woven fabrics or absorbent paper.

[0009] A further improvement is that the first absorption layer is a layer of high molecular water-absorbing particles.

[0010] A further improvement is that the absorbent strip comprises a third liquid-permeable layer and a second absorbent layer, the second absorbent layer is laid on the upper surface of the third liquid-permeable layer, and the third liquid-permeable layer rolls up the second absorbent layer from one side to the other.

[0011] A further improvement is that the third liquid-permeable layer is made of hydrophilic non-woven fabric or absorbent paper.

[0012] A further improvement is that the second absorption layer is a polymer water-absorbing particle layer or a plush pulp layer.

[0013] A fan-shaped absorbent core roll comprises a roll core and a fan-shaped absorbent core. The fan-shaped absorbent core is laterally tightened and then wound on the roll core.

[0014] By adopting the above technical solution, the beneficial effects of the utility model are:

[0015] 1. The absorbent core in this embodiment is continuously folded to form an M-shaped cross-section. The lower corner of the M-shape forms a diversion channel for liquid inflow and diverts liquid forward and backward, thereby enhancing the diversion effect of the composite disposable absorbent article. The bottom of the diversion channel forms a hollow channel, and an absorbent strip is inserted into the hollow channel, which can move up and down and left and right. The absorbent strip absorbs liquid in the diversion channel and increases the overall liquid absorption capacity of the absorbent core.

[0016] A further beneficial effect is that the two corner edges of the guide groove are glued or ultrasonically welded to each other at intervals along the length direction of the absorbent core near the bottom of the groove, and the unglued or unwelded parts form a downstream gap connected to the hollow channel to facilitate the flow of liquid to the hollow channel, thereby accelerating the absorption of liquid by the absorbent core.

[0017] A further beneficial effect is that the absorbent body adopts a non-woven fabric layer, a high molecular water-absorbing particle layer, a non-woven fabric layer structure or a non-woven fabric layer, a high molecular water-absorbing particle layer, a non-woven fabric layer structure to reduce the overall thickness of the absorbent body and facilitate folding.

[0018] A further beneficial effect is that the absorbent strip adopts a non-woven fabric layer or absorbent paper layer to roll up a high molecular water-absorbing particle layer or a plush pulp layer, and reduces the volume by rolling and compacting to enhance the amount of liquid absorbed by the absorbent core.

[0019] A further beneficial effect is that the gap between the hollow channel and the absorbent strip is conducive to adapting to the lateral extrusion and folding of the absorbent body, thereby reducing fold wrinkles on the absorbent body.

[0020] 2. After the fan-shaped absorbent core is laterally tightened, the bottom surface of the fan-shaped absorbent core is placed against the roll core, and the top corner is pressed to one side and rolled onto the roll core. This helps maintain the corner and deepen the crease during storage, making it easier to use with the liquid-permeable top layer and liquid-impermeable back layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the cross-sectional structure of a fan-shaped absorption core according to an embodiment of the present utility model.

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of a fan-shaped absorption core in a laterally tightened state according to an embodiment of the present invention.

[0023] Figure 3It is a schematic diagram of the internal structure of the absorbent body in a fan-shaped absorbent core according to an embodiment of the present invention.

[0024] Figure 4 It is a schematic structural diagram of an absorbent strip in a fan-shaped absorbent core according to an embodiment of the present invention.

[0025] Figure 5 It is a structural schematic diagram of a fan-shaped absorbent core roll according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0027] refer to Figures 1 to 4 The present invention discloses a fan-shaped absorbent core and its roll material. The fan-shaped absorbent core comprises an absorbent body 10 that is continuously folded to form a continuous M-shaped cross-section. The lower folded corner of the absorbent body 10 forms a guide groove 11 for liquid to flow into and guide the liquid forward and backward. The two folded edges of the guide groove 11 are glued or ultrasonically welded together near the bottom of the groove along the length of the absorbent core to form a hollow channel 12. An absorbent strip 13 is movably inserted into the hollow channel 12 to absorb the liquid in the guide groove 11 and increase the overall liquid absorption capacity of the absorbent core. The two folded edges of the guide groove 11 are glued or ultrasonically welded together near the bottom of the groove along the length of the absorbent core to form a downstream gap 14.

[0028] The absorbent body 10 includes a first liquid-permeable layer 101, a second liquid-permeable layer 102, and a first absorbent layer 103. The first liquid-permeable layer 101, the first absorbent layer 103, and the second liquid-permeable layer 102 are glued together in sequence. The first liquid-permeable layer 101 and the second liquid-permeable layer 102 are made of hydrophilic nonwoven fabric or absorbent paper. The first absorbent layer 103 is a layer of polymeric water-absorbing particles.

[0029] The absorbent strip 13 comprises a third liquid-permeable layer and a second absorbent layer. The second absorbent layer is laid on the upper surface of the third liquid-permeable layer, and the third liquid-permeable layer wraps around the second absorbent layer from one side to the other. The third liquid-permeable layer is a hydrophilic nonwoven fabric or absorbent paper. The second absorbent layer is a layer of polymer absorbent particles or a fleece pulp layer.

[0030] refer to Figure 5 A fan-shaped absorbent core roll comprises a core 15 and a fan-shaped absorbent core 16 made of the above-described structure. After the fan-shaped absorbent core 16 is laterally tightened, the fan-shaped absorbent core 16 is rolled onto the core with its bottom surface pressed against the core and its top corner pressed to one side. The fan-shaped absorbent core 16 is rolled and stored, which helps maintain the corner and deepen the fold during rolling, facilitating subsequent use with a liquid-permeable top layer and a liquid-impermeable back layer.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection claimed in the present invention is defined by the attached claims and their equivalents.

Claims

1. A fan-shaped absorbent core, characterized in that: It includes an absorbent body that is continuously folded to form a continuous M-shaped cross-section. The lower folded corner of the absorbent body forms a guide groove. The two folded edges of the guide groove are glued or ultrasonically welded to each other along the length direction of the absorbent core near the bottom of the groove to form a hollow channel. An absorbent strip is movably provided in the hollow channel.

2. The fan-shaped absorbent core according to claim 1, characterized in that: The two folded corner edges of the guide groove are glued or ultrasonically welded with each other at intervals along the length direction of the absorbent core near the groove bottom to form a downstream gap.

3. The fan-shaped absorbent core according to claim 1, characterized in that: The absorbent body comprises a first liquid-permeable layer, a second liquid-permeable layer, and a first absorbent layer, and the first liquid-permeable layer, the first absorbent layer, and the second liquid-permeable layer are glued together in sequence.

4. The fan-shaped absorbent core according to claim 3, characterized in that: The first liquid-permeable layer and the second liquid-permeable layer are hydrophilic non-woven fabrics or absorbent paper.

5. The fan-shaped absorbent core according to claim 4, characterized in that: The first absorption layer is a polymer water-absorbing particle layer.

6. The fan-shaped absorbent core according to claim 1, characterized in that: The absorbent strip comprises a third liquid-permeable layer and a second absorbent layer. The second absorbent layer is laid on the upper surface of the third liquid-permeable layer. The third liquid-permeable layer rolls up the second absorbent layer from one side to the other side.

7. The fan-shaped absorbent core according to claim 6, characterized in that: The third liquid-permeable layer is a hydrophilic non-woven fabric or absorbent paper.

8. The fan-shaped absorbent core according to claim 7, characterized in that: The second absorption layer is a polymer water-absorbing particle layer or a fluff pulp layer.

9. A roll material comprising a roll core and an absorbent core, characterized in that: The absorbent core is the fan-shaped absorbent core according to any one of claims 1 to 7, and the fan-shaped absorbent core is laterally tightened and wound on the winding core.

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