Apparatus and method for manufacturing paper diaper core, and paper diaper core

Abstract

The present invention relates to an apparatus and method for manufacturing a paper diaper core, and a paper diaper core. The apparatus for manufacturing a paper diaper core comprises: a forming unit, capable of rotating around the axis of the forming unit, wherein a hollowed-out area and a pattern block are provided on the circumferential surface of the forming unit; a first conveying unit, capable of supplying first fluffy cloth to the forming unit and enabling the first fluffy cloth to be wound on the circumferential surface of the forming unit, wherein the first fluffy cloth is capable of rotating along with the forming unit, and the first fluffy cloth is provided with a first area corresponding to the hollowed-out area and a second area corresponding to the pattern block; a feeding unit, capable of supplying polymer particles to the first fluffy cloth wound on the forming unit; and a negative pressure unit, capable of adsorbing the polymer particles on the first area of the first fluffy cloth. According to the prevent invention, the second area having no polymer particle can be formed on the fluffy cloth of the paper diaper core, thereby improving the urine absorption effect of the fluffy cloth of the paper diaper core.

Description

Apparatus and method for manufacturing diaper core and diaper core Technical Field

[0001] The present invention relates to the field of diapers, and in particular to an apparatus and method for manufacturing a diaper core and the diaper core. Background Art

[0002] Diapers are widely used by infants and patients who cannot take care of themselves. The surface of existing diapers is smooth, and the user's urine and the like are easily accumulated on the surface of the diaper (i.e., the top layer). The fluffy cloth inside the diaper that can absorb a large amount of urine cannot be fully utilized, resulting in urine being difficult to be absorbed and being absorbed slowly, causing urine to accumulate on the top layer that is in direct contact with the user's skin, resulting in a poor user experience.

[0003] The information disclosed in this background section is only intended to enhance understanding of the overall background of the invention and should not be considered as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art.

[0004] Summary of the Invention

[0005] The object of the present invention is to provide an apparatus, method and diaper core for manufacturing a diaper core. The apparatus and method for manufacturing a diaper core of the present invention can form a second area without polymer particles on the fluffy cloth of the diaper core, thereby improving the absorption effect of the fluffy cloth of the diaper core on urine.

[0006] According to a first aspect of the present invention, there is provided an apparatus for manufacturing a diaper core, comprising: a molding unit capable of rotating around its own axis, the molding unit having a hollow area and a pattern block on its circumferential surface; a first conveying unit capable of providing a first fluffy cloth to the molding unit and causing the first fluffy cloth to be wound around the circumferential surface of the molding unit, the first fluffy cloth being capable of rotating with the molding unit, the first fluffy cloth having a first area corresponding to the hollow area, and a second area corresponding to the pattern block; a feeding unit capable of providing polymer particles to the first fluffy cloth wound on the molding unit; and a negative pressure unit capable of adsorbing the polymer particles on the first area of ​​the first fluffy cloth.

[0007] Preferably, the apparatus for manufacturing a diaper core further comprises: a second conveying unit capable of providing a covering cloth to the molding unit.

[0008] Preferably, the apparatus for manufacturing a diaper core further comprises: a third conveying unit capable of providing a second fluffy cloth to the forming unit.

[0009] Preferably, the apparatus for manufacturing a diaper core further comprises: a fourth conveying unit capable of providing non-woven fabric.

[0010] Preferably, the feeding unit comprises: a first lower hopper capable of providing first polymer particles to the first fluffy cloth wrapped around the molding unit; and a second lower hopper capable of providing second polymer particles to the first fluffy cloth wrapped around the molding unit.

[0011] Preferably, the pattern block has a curvature.

[0012] Preferably, the pattern block and the hollow area are formed as one body.

[0013] Preferably, the circumferential surface of the molding unit has a through hole, and the pattern block has an insertion rod corresponding to the through hole, and the insertion rod is inserted into the through hole so that the pattern block can be detachably mounted to the circumferential surface of the molding unit.

[0014] Preferably, the feeding unit is arranged above or obliquely above the circumferential surface of the molding unit.

[0015] Preferably, the molding unit comprises: a shaft; and a housing rotatably mounted to the shaft.

[0016] According to a second aspect of the present invention, a method for manufacturing a diaper core is provided, comprising: utilizing a first conveying unit to provide a first fluffy cloth to a molding unit, the molding unit being capable of rotating around its own axis, the molding unit having a hollow area and a pattern block on its circumferential surface, the first fluffy cloth being capable of rotating with the molding unit, the first fluffy cloth having a first area corresponding to the hollow area, and a second area corresponding to the pattern block; utilizing a feeding unit to provide polymer particles to the first fluffy cloth wrapped around the molding unit; utilizing a negative pressure unit to adsorb the polymer particles on the first area of ​​the first fluffy cloth.

[0017] Preferably, before providing the first fluffy cloth to the molding unit by the first conveying unit, the method for manufacturing a diaper core further comprises: providing a covering cloth to the molding unit by the second conveying unit; wherein the first fluffy cloth is arranged above the covering cloth.

[0018] Preferably, after providing the first fluffy cloth to the molding unit by the first conveying unit, the method for manufacturing a diaper core further comprises: providing the second fluffy cloth to the molding unit by a third conveying unit; wherein the second fluffy cloth is arranged above the first fluffy cloth.

[0019] Preferably, after the negative pressure unit is used to adsorb the polymer particles on the first area of ​​the first fluffy cloth, the method for manufacturing a diaper core further comprises: using a fourth conveying unit to provide non-woven fabric, so that the non-woven fabric is arranged above the first fluffy cloth.

[0020] Preferably, the feeding unit comprises: a first lower hopper capable of providing first polymer particles to the first fluffy cloth wrapped around the molding unit; and a second lower hopper capable of providing second polymer particles to the first fluffy cloth wrapped around the molding unit.

[0021] Preferably, the feeding unit is arranged above or obliquely above the circumferential surface of the molding unit.

[0022] According to a third aspect of the present invention, there is provided a diaper core, which is manufactured by the apparatus for manufacturing a diaper core according to the first aspect.

[0023] According to a fourth aspect of the present invention, a diaper core is provided, which is manufactured by the method for manufacturing a diaper core according to the second aspect.

[0024] The apparatus and method for manufacturing a diaper core of the present invention can form a second region without polymer particles on the fluffy fabric of the diaper core, thereby improving the urine absorption effect of the fluffy fabric of the diaper core.

[0025] The units of the present invention have other features and advantages that will be apparent from or will be described in detail in the accompanying drawings and subsequent embodiments incorporated herein, which together serve to explain the specific principles of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic structural diagram of an apparatus for manufacturing a diaper core according to an embodiment of the present invention;

[0027] FIG2A is a schematic diagram of a molding unit in a first state;

[0028] FIG2B is a schematic diagram of a second state of the molding unit;

[0029] FIG2C is a schematic diagram of the molding unit in a third state;

[0030] FIG3A is a schematic diagram showing the positional relationship between the molding unit and the feeding unit;

[0031] FIG3B is a second schematic diagram of the positional relationship between the molding unit and the feeding unit;

[0032] FIG4A is a cross-sectional view of a diaper core according to embodiment 1 of the present invention;

[0033] FIG4B is a cross-sectional view of a diaper core according to the second embodiment of the present invention;

[0034] FIG5A is a cross-sectional view of a diaper core according to a third embodiment of the present invention;

[0035] FIG5B is a cross-sectional view of a diaper core according to a fourth embodiment of the present invention;

[0036] FIG6A is a schematic diagram of a first second area on a first fluffy cloth;

[0037] FIG6B is a schematic diagram of a second type of second area on the first fluffy cloth;

[0038] FIG6C is a schematic diagram of a third second area on the first fluffy cloth;

[0039] FIG6D is a schematic diagram of a fourth second area on the first fluffy cloth;

[0040] FIG6E is an expanded view of the covering cloth;

[0041] FIG7 is a schematic flow chart of a first method for manufacturing a diaper core provided by the present invention;

[0042] FIG8A is a schematic flow chart of a second method for manufacturing a diaper core provided by the present invention;

[0043] FIG8B is a schematic flow chart of a third method for manufacturing a diaper core provided by the present invention;

[0044] FIG8C is a schematic flow chart of a fourth method for manufacturing a diaper core provided by the present invention;

[0045] FIG9A is a schematic flow chart of a fifth method for manufacturing a diaper core provided by the present invention;

[0046] 9B is a schematic flow chart of a sixth method for manufacturing a diaper core provided by the present invention;

[0047] FIG9C is a schematic flow chart of a seventh method for manufacturing a diaper core provided by the present invention.

[0048] Explanation of the drawing marks: 100: molding unit 101: hollow area 102: pattern block 103: shaft 104: shell 201: first conveying unit 300: feeding unit 301: first lower hopper 302: second lower hopper 400: negative pressure unit 202: second conveying unit 203: third conveying unit 204: fourth conveying unit 801: first fluffy cloth 802: first area 803: second area 804: second fluffy cloth 901: covering cloth 902: non-woven fabric 903: long side.

[0049] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather present simplified representations of various features to illustrate the basic principles of the invention. The specific design features disclosed in the present invention (including, for example, specific dimensions, directions, locations, and shapes) will be determined in part by the specific intended application and use environment.

[0050] In the figures, like reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing. DETAILED DESCRIPTION

[0051] Reference will now be made in detail to various embodiments of the present invention, examples of which are presented in the accompanying drawings and described below. Although the present invention will be described in conjunction with the exemplary embodiments, it should be understood that this description is not intended to limit the invention to these exemplary embodiments. On the contrary, the present invention is intended to cover not only these exemplary embodiments, but also various alternative forms, modifications, equivalent forms and other embodiments that may be included within the spirit of the invention and the scope defined by the appended claims.

[0052] It should be understood that when a component is referred to as being “connected to” another component, it can be directly connected to the other component or intervening components may be present. In contrast, when a component is referred to as being “directly connected to” another component, there are usually no intervening components.

[0053] When an element is referred to as being “on” or “over” another element, the element may be in contact with the other element or intervening elements may also be present.

[0054] Figure 1 is a structural schematic diagram of an apparatus for manufacturing a diaper core according to an embodiment of the present invention; Figure 2A is a schematic diagram of a first state of a molding unit; Figure 2B is a schematic diagram of a second state of a molding unit; and Figure 2C is a schematic diagram of a third state of a molding unit.

[0055] Figure 3A is a schematic diagram of the positional relationship between the molding unit and the feeding unit. In Figure 3A, the feeding unit 300 has only one first lower hopper 301; Figure 3B is a schematic diagram of the positional relationship between the molding unit and the feeding unit. In Figure 3B, the feeding unit 300 includes a first lower hopper 301 and a second lower hopper 302.

[0056] Figure 4A is a cross-sectional view of a diaper core according to embodiment 1 of the present invention, and Figure 4B is a cross-sectional view of a diaper core according to embodiment 2 of the present invention. The diaper cores in Figures 4A and 4B both have only one layer of fluffy cloth, i.e., a first fluffy cloth 801; Figure 5A is a cross-sectional view of a diaper core according to embodiment 3 of the present invention, and Figure 5B is a cross-sectional view of a diaper core according to embodiment 4 of the present invention. The diaper cores in Figures 5A and 5B both include two layers of fluffy cloth, i.e., a first fluffy cloth 801 and a second fluffy cloth 804; the second area 803 in Figures 4A and 5A is a solid, and the second area 803 in Figures 4B and 5B is an opening.

[0057] Figure 6A is a schematic diagram of a first type of second region on a first fluffy fabric; Figure 6B is a schematic diagram of a second type of second region on the first fluffy fabric; Figure 6C is a schematic diagram of a third type of second region on the first fluffy fabric; and Figure 6D is a schematic diagram of a fourth type of second region on the first fluffy fabric. Figures 6A, 6B, 6C, and 6D illustrate four different shapes of second regions 803. Figure 6E is a diagram of an expanded view of the covering fabric.

[0058] As shown in FIG. 1 , the apparatus for manufacturing a diaper core according to an embodiment of the present invention includes a molding unit 100 , a first conveying unit 201 , a feeding unit 300 , and a negative pressure unit 400 .

[0059] The molding unit 100 can rotate around its own axis, and has a hollow area 101 and a pattern block 102 on its circumferential surface (see FIG. 2A for details). The hollow area 101 surrounds the pattern block 102 .

[0060] The first conveying unit 201 can provide the first fluffy cloth 801 to the molding unit 100 and make the first fluffy cloth 801 wrapped around the circumferential surface of the molding unit 100. The first fluffy cloth 801 can rotate with the molding unit 100. The first fluffy cloth 801 has a first area 802 corresponding to the hollow area 101 and a second area 803 corresponding to the pattern block 102 (see Figures 6A, 6B, 6C and 6D for details).

[0061] The feeding unit 300 supplies polymer particles to the first fluffy fabric 801 wrapped around the molding unit 100. The polymer particles can be of a single type, but are not limited to a single type. For example, they can include the first polymer particles and the second polymer particles described below. Specifically, the feeding unit 300 is positioned above the circumferential surface of the molding unit (see Figure 3A for details) or diagonally above it (see Figure 3B for details).

[0062] The negative pressure unit 400 can adsorb the polymer particles on the first area 802 of the first fluffy cloth 801 .

[0063] The equipment for manufacturing a diaper core of the present invention can form a second area without polymer particles on the fluffy cloth of the diaper core. The second area without polymer particles is conducive to the diffusion of urine in the non-woven fabric above the fluffy cloth to the fluffy cloth, thereby improving the urine absorption effect of the fluffy cloth of the diaper core.

[0064] In an exemplary embodiment, as shown in FIG1 , the apparatus for manufacturing a diaper core according to an embodiment of the present invention further includes a second conveying unit 202, which can provide a covering cloth 901 (see FIG4A for details) to the forming unit 100. The covering cloth 901 can wrap the first fluffy cloth 801 and the nonwoven fabric 902 described later.

[0065] In an exemplary embodiment, as shown in FIG1 , the apparatus for manufacturing a diaper core according to an embodiment of the present invention further includes a third conveying unit 203, which is capable of providing a second fluffy cloth 804 to the molding unit 100. The second fluffy cloth 804 is disposed above the first fluffy cloth 801 (see FIG4A for details), and the covering cloth 901 is capable of wrapping the first fluffy cloth 801, the second fluffy cloth 804, and the non-woven fabric 902 to be described later.

[0066] In an exemplary embodiment, as shown in FIG1 , the apparatus for manufacturing a diaper core according to an embodiment of the present invention further includes a fourth conveying unit 204, which can provide a non-woven fabric 902 ( FIG4A , FIG4B , FIG5A , and FIG5B ). The non-woven fabric 902 is used to diffuse urine toward the lower portion and ends of the core to facilitate absorption by the polymer particles.

[0067] The non-woven fabric 902 can be spunlace fabric, spunbond fabric or spunmelt fabric.

[0068] In an exemplary embodiment, as shown in FIG. 1 , the apparatus for manufacturing a diaper core according to an embodiment of the present invention further includes a fifth conveying unit 205 , through which the formed diaper core is conveyed to the next production line.

[0069] In one embodiment, as shown in FIG1 , the first conveyor unit 201 is disposed above the second conveyor unit 202. In another embodiment, the first conveyor unit 201 and the second conveyor unit 202 are located on the same horizontal plane. The positional relationship between the first conveyor unit 201 and the second conveyor unit 202 is not limited to this and can be any relationship known in the art as long as the above-mentioned functions can be achieved.

[0070] In one embodiment, as shown in FIG1 , the third conveyor unit 203 is disposed above the fifth conveyor unit 205. In another embodiment, the third conveyor unit 203 and the fifth conveyor unit 205 are located on the same horizontal plane. The positional relationship between the third conveyor unit 203 and the fifth conveyor unit 205 is not limited to this and can be any relationship known in the art as long as the above-mentioned functions can be achieved.

[0071] In one embodiment, as shown in FIG1 , the fourth conveyor unit 204 is disposed above the fifth conveyor unit 205. In another embodiment, the fourth conveyor unit 204 and the fifth conveyor unit 205 are located on the same horizontal plane. The positional relationship between the fourth conveyor unit 204 and the fifth conveyor unit 205 is not limited to this and can be any relationship known in the art as long as the above-described functions can be achieved.

[0072] In one embodiment, as shown in FIG. 3A , the feeding unit 300 only includes a first lower hopper 301 , which only provides first polymer particles to the first fluffy cloth 801 .

[0073] In another embodiment, as shown in FIG. 1 and FIG. 4A , the feeding unit 300 includes a first lower hopper 301 and a second lower hopper 302 .

[0074] The first lower hopper 301 is filled with first polymer particles, and the first lower hopper 301 can provide the first polymer particles to the first fluffy cloth 801 wound around the molding unit 100 .

[0075] The second lower hopper 302 is filled with second polymer particles, and the second lower hopper 302 can provide the second polymer particles to the first fluffy cloth 801 wound around the molding unit 100 .

[0076] The staff can open only the first lower hopper 301 without opening the second lower hopper 302 to provide only the first polymer particles, or only open the second lower hopper 302 without opening the first lower hopper 301 to provide only the second polymer particles, or open the first lower hopper 301 and the second lower hopper 302 at the same time to provide the first polymer particles and the second polymer particles.

[0077] In an exemplary embodiment, as shown in FIG. 2B , the pattern block 102 has a curvature so that the polymer particles dropped on the second region 803 corresponding to the pattern block 102 drop from the second region 803 to the first region 802 corresponding to the hollow region 101 .

[0078] In one embodiment, the pattern block 102 is formed integrally with the hollow area 101 .

[0079] In another embodiment, the circumferential surface of the molding unit 100 has a through hole (not shown in the figure), and the pattern block 102 has a plug-in rod (not shown in the figure) corresponding to the through hole, and the plug-in rod is inserted into the through hole so that the pattern block 102 can be detachably mounted to the circumferential surface of the molding unit 100.

[0080] The shape of the second area 803 is determined by the shape of the pattern block 102 . When the shape of the second area 803 needs to be changed, it is only necessary to replace the pattern block 102 with a different shape.

[0081] The installation method of through holes and plug-in rods is only an optional method. In other embodiments, other installation methods can also be selected to enable the pattern block 102 to be detachably installed on the circumferential surface of the molding unit 100.

[0082] In the exemplary embodiment, as shown in Figures 2A, 2B, and 2C, the molding unit 100 includes a shaft 103 and a housing 104. The housing 104 is rotatably mounted to the shaft 103. Figures 2A, 2B, and 2C do not illustrate the entire structure of the molding unit 100, but only illustrate the approximate positional relationship between the shaft 103 and the housing 104.

[0083] In the exemplary embodiment, the interior of shaft 103 is hollow and connected to the interior of housing 104. Negative pressure unit 400 includes a negative pressure generating device and a connecting tube (neither of which is shown). One end of the connecting tube is connected to the negative pressure generating device, and the other end of the connecting tube is connected to the interior of the shaft, thereby connecting the negative pressure generating device to the interior of housing 104, thereby generating negative pressure inside housing 104.

[0084] As shown in FIG7 , an embodiment of the present invention further provides a method for manufacturing a diaper core, comprising:

[0085] In step S110, the first conveying unit 201 is used to provide the first fluffy cloth 801 to the molding unit 100. The molding unit 100 can rotate around its own axis. The circumferential surface of the molding unit 100 has a hollow area 101 and a pattern block 102. The first fluffy cloth 801 can rotate with the molding unit 100. The first fluffy cloth 801 has a first area 802 corresponding to the hollow area 101 and a second area 803 corresponding to the pattern block 102.

[0086] In step S120, the feeding unit 300 is used to provide polymer particles to the first fluffy cloth 801 wrapped around the molding unit 100. The molding unit 100 rotates from the state shown in FIG2A to the state shown in FIG2B , and then to the state shown in FIG2C . When the molding unit 100 rotates to the state shown in FIG2B , the pattern block 102 of the molding unit 100 is at its highest point. At this time, the polymer particles provided by the feeding unit 300 fall onto the first region 802 and the second region 803 of the first fluffy cloth 801. Because the pattern block 102 is curved and at its highest point, the polymer particles that fall onto the second region 803 corresponding to the pattern block 102 fall from the second region 803 to the first region 802 corresponding to the hollow region 101. Simultaneously, the negative pressure generated by the negative pressure unit 400 causes the polymer particles to be adsorbed onto the first region 802.

[0087] In step S130 , the negative pressure unit 400 is used to adsorb the polymer particles on the first area 802 of the first fluffy cloth 801 .

[0088] The method for manufacturing a diaper core of the present invention can form a second region 803 without polymer particles on the fluffy fabric of the diaper core, thereby improving the urine absorption effect of the fluffy fabric of the diaper core.

[0089] In an exemplary embodiment, as shown in FIG8A , before providing the first fluffy fabric 801 to the molding unit 100 using the first conveying unit 201 (ie, step S110 ), the method for manufacturing a diaper core further includes:

[0090] In step S101 , the second conveying unit 202 is used to provide the covering cloth 901 to the molding unit 100 .

[0091] The first fluffy cloth 801 is arranged above the covering cloth 901 .

[0092] In an exemplary embodiment, as shown in FIG9A , after providing the first fluffy fabric 801 to the molding unit 100 using the first conveying unit 201 (ie, step S110 ), the method for manufacturing a diaper core further includes:

[0093] Step S111 : providing the second fluffy cloth 804 to the molding unit 100 by using the third conveying unit 203 .

[0094] The second fluffy cloth 804 is disposed above the first fluffy cloth 801. The second fluffy cloth 804 also has a first area 802 and a second area 803.

[0095] Step S120 specifically includes: using the feeding unit 300 to provide polymer particles to the second fluffy cloth 804 above the first fluffy cloth 801 wrapped around the molding unit 100 .

[0096] In step S130 , the negative pressure unit 400 is used to adsorb the polymer particles on the first area 802 of the first fluffy cloth 801 and the first area 802 of the second fluffy cloth 804 .

[0097] In an exemplary embodiment, as shown in FIG8B , after the negative pressure unit 400 is used to adsorb the polymer particles on the first area 802 of the first fluffy cloth 801 (i.e., step S130 ), the method for manufacturing a diaper core further includes:

[0098] In step S140 , the fourth conveying unit 204 is used to provide the non-woven fabric 902 so that the non-woven fabric 902 is disposed above the first fluffy fabric 801 (see FIG. 4A and FIG. 4B ).

[0099] If a second fluffy sheet 804 is provided, the nonwoven fabric 902 is disposed above the second fluffy sheet 804 above the first fluffy sheet 801 (see Figures 4A, 4B, and 9B for details).

[0100] In an exemplary embodiment, after the non-woven fabric 902 is provided by the fourth conveying unit 204 so as to be disposed above the first fluffy fabric 801, or after the non-woven fabric 902 is provided by the fourth conveying unit 204 so as to be disposed above the second fluffy fabric 804 above the first fluffy fabric 801, the method for manufacturing a diaper core further includes:

[0101] In step S150, both sides of the covering cloth 901 are folded to wrap the first fluffy cloth 801 and the non-woven cloth 902 (see Figures 4A, 4B and 8C for details), or to wrap the first fluffy cloth 801, the second fluffy cloth 804 and the non-woven cloth 902 (see Figures 5A, 5B and 9C for details).

[0102] Specifically, a tool such as a mechanical gripper is used to fold over the long side 903 of the covering cloth 901 (see FIG. 6E for details).

[0103] In an exemplary embodiment, the devices in FIG. 7 to FIG. 9C are all the devices in FIG. 1 to FIG. 5B , and are not described again here.

[0104] Another embodiment of the present invention provides a diaper core, which is manufactured by the apparatus for manufacturing a diaper core as shown in Figures 1 to 3B.

[0105] Another embodiment of the present invention provides a diaper core, which is manufactured by the method for manufacturing a diaper core as described in FIG. 7 to FIG. 9C .

[0106] It should be noted that Figures 4A, 4B, 5A, and 5B illustrate only the general shapes of the layers and their approximate positional relationships. To better distinguish the boundaries between the layers, gaps are shown between the layers in Figures 4A, 4B, 5A, and 5B. However, in actual products, no gaps exist between the layers.

[0107] In one embodiment, as shown in Figure 4A, the second region 803 of the first fluffy fabric 801 is solid. In another embodiment, as shown in Figure 4B, the second region 803 of the first fluffy fabric 801 is open.

[0108] In one embodiment, as shown in Figure 5A, the second regions 803 of the first and second fluffy sheets 801 and 804 are solid. In another embodiment, as shown in Figure 5B, the second regions 803 of the first and second fluffy sheets 801 and 804 are open.

[0109] When the diaper core is made into a diaper and is worn on a person, the upper side in FIG. 4A , FIG. 4B , FIG. 5A and FIG. 5B is the side close to the skin.

[0110] To verify the effectiveness of the diaper core according to the embodiment of the present invention, a control test was conducted on diapers. The only difference between the control and experimental groups was the absence of the corresponding second region 803; all other conditions were the same. Where L is the diffusion length shown on the diaper's top layer during the absorption of 80 ml of saline solution. The longer the diffusion length shown on the top layer, the better the diaper's absorption of saline solution. t is the time required to absorb 80 ml of saline solution. The shorter the time, the faster the diaper core absorbs saline solution.

[0111] It can be seen from the table that the diffusion length of the experimental group provided with the second region 803 exceeds that of the corresponding control group, and the absorption speed exceeds that of the corresponding control group.

[0112] For convenience of explanation and precise definition of the appended claims, the terms "upper", "lower", "inner", "outer", "above", "below", "upper", "lower", "upward", "downward", "front", "back", "behind", "inside", "outside", "inward", "outward", "inner", "exterior", "inner", "external", "forward", and "backward" are used to describe the features of the exemplary embodiments with reference to the positions of such features as shown in the accompanying drawings.

[0113] The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. The foregoing descriptions are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described to illustrate the specific principles of the invention and their practical application, thereby enabling others skilled in the art to make and utilize the various exemplary embodiments of the invention and their various alternatives and modifications. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An apparatus for manufacturing a diaper core, comprising: A molding unit, which can rotate around its own axis, and has a hollow area and pattern blocks on its circumferential surface; a first conveying unit, which can provide a first fluffy cloth to the molding unit and make the first fluffy cloth be wound around a circumferential surface of the molding unit, the first fluffy cloth can rotate with the molding unit, and the first fluffy cloth has a first area corresponding to the hollow area and a second area corresponding to the pattern block; A feeding unit capable of providing polymer particles to the first fluffy cloth wound around the forming unit; as well as A negative pressure unit is capable of adsorbing polymer particles on the first area of ​​the first fluffy cloth.

2. The apparatus for manufacturing a diaper core according to claim 1, further comprising: A second conveying unit is capable of providing the covering cloth to the molding unit.

3. The apparatus for manufacturing a diaper core according to claim 1, further comprising: A third conveying unit is capable of providing a second fluffy cloth to the forming unit.

4. The apparatus for manufacturing a diaper core according to claim 1, further comprising: A fourth conveying unit is capable of providing the nonwoven fabric.

5. The apparatus for manufacturing a diaper core according to claim 1, wherein: The feeding unit comprises: A first lower hopper capable of providing first polymer particles to a first fluffy cloth wound around a forming unit; and The second lower hopper is capable of providing second polymer particles to the first fluffy cloth wound around the forming unit.

6. The apparatus for manufacturing a diaper core according to claim 1, wherein: The pattern block has a curvature.

7. The apparatus for manufacturing a diaper core according to claim 1, wherein: The pattern block is formed as one body with the hollow area.

8. The apparatus for manufacturing a diaper core according to claim 1, wherein: The circumferential surface of the molding unit has a through hole, and the pattern block has an insertion rod corresponding to the through hole, and the insertion rod is inserted into the through hole, so that the pattern block can be detachably mounted to the circumferential surface of the molding unit.

9. The apparatus for manufacturing a diaper core according to claim 1, wherein: The feeding unit is arranged above or obliquely above the circumferential surface of the molding unit.

10. The apparatus for manufacturing a diaper core according to claim 1, wherein: The molding unit comprises: Axles; and A housing is rotatably mounted to the shaft.

11. A method for manufacturing a diaper core, comprising: A first fluffy cloth is provided to a molding unit by a first conveying unit, the molding unit can rotate around its own axis, a hollow area and a pattern block are provided on a circumferential surface of the molding unit, the first fluffy cloth can rotate with the molding unit, and the first fluffy cloth has a first area corresponding to the hollow area and a second area corresponding to the pattern block; Using a feeding unit to provide polymer particles to the first fluffy cloth wound around the forming unit; The polymer particles are adsorbed on the first area of ​​the first fluffy cloth by using a negative pressure unit.

12. The method for manufacturing a diaper core according to claim 11, wherein: Before providing the first fluffy cloth to the molding unit by the first conveying unit, the method for manufacturing the diaper core further includes: providing the covering cloth to the molding unit using a second conveying unit; Wherein, the first fluffy cloth is arranged above the covering cloth.

13. The method for manufacturing a diaper core according to claim 11, wherein: After providing the first fluffy cloth to the molding unit by the first conveying unit, the method for manufacturing the diaper core further includes: providing a second fluffy cloth to the molding unit using a third conveying unit; Wherein, the second fluffy cloth is arranged above the first fluffy cloth.

14. The method for manufacturing a diaper core according to claim 11, wherein: After the polymer particles are adsorbed on the first area of ​​the first fluffy fabric by using the negative pressure unit, the method for manufacturing a diaper core further includes: The nonwoven fabric is provided by the fourth conveying unit such that the nonwoven fabric is disposed above the first fluffy fabric.

15. The method for manufacturing a diaper core according to claim 11, wherein: The feeding unit comprises: A first lower hopper capable of providing first polymer particles to a first fluffy cloth wound around a forming unit; and The second lower hopper is capable of providing second polymer particles to the first fluffy cloth wound around the forming unit.

16. The method for manufacturing a diaper core according to claim 11, wherein: The feeding unit is arranged above or obliquely above the circumferential surface of the molding unit.

17. A diaper core, manufactured by the apparatus for manufacturing a diaper core according to any one of claims 1 to 10.

18. A diaper core, manufactured by the method for manufacturing a diaper core according to any one of claims 11 to 16.

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