A core body for urine and feces partition absorption and its production process

Abstract

The present invention relates to the field of disposable sanitary products, and provides a core body for urine and feces partition absorption and a production process thereof, comprising a core body main body, the core body main body comprising a lower core body, two urine core bodies respectively arranged on the top of the lower core body, a wrapping layer wrapping the lower core body and the urine core body, the two urine core bodies are arranged along the length direction, the two urine core bodies are respectively arranged on both sides of the lower core body, a feces liquid channel is formed between the two urine core bodies, the urine core body comprises a compositely arranged first non-woven fabric and a first polymer layer, the thickness of the middle part of the lower core body is less than the thickness of the two sides, and a V-shaped guide groove is formed at the top of the lower core body or the top of the middle part of the lower core body. The lower core body has the effects of conducting, supporting, storing, absorbing liquid and absorbing feces, the urine core body mainly has the effects of absorbing liquid and preventing side leakage, and the feces liquid channel can buffer and guide a large amount of liquid, solving the technical problem of poor core diversion and absorption effect.

Description

Technical Field

[0001] The invention relates to the field of disposable sanitary products, in particular to a core body for absorbing urine and feces in different zones and a production process thereof. Background Art

[0002] At present, most of the existing cores absorb urine and feces together, and the absorption of urine and feces is usually concentrated in the middle of the core. When urine and feces are absorbed, a large amount of liquid will be concentrated in the middle of the core. It is difficult for the middle of the core to absorb a large amount of liquid in a short time. The liquid diffuses, which may cause urine leakage, and the urine diversion and absorption effects are poor.

[0003] Chinese patent application number: 201821700092.4, discloses a 3D diversion absorption core, which is connected from top to bottom by an upper covering layer, a composite absorption core layer, and a lower covering layer, and the composite absorption core layer is composed of one or more layers of absorption cores, and a high water-absorbent resin low-density distribution area is arranged at the center position of the lateral width of the composite absorption core layer or / and the central symmetrical position on both sides; a top diversion body and a bottom diversion body corresponding to and facing away from the top diversion body are arranged at the top and bottom of the 3D diversion absorption core corresponding to the high water-absorbent resin low-density distribution area, and a diversion groove circumferentially surrounding the 3D convex body is arranged in the top diversion body and the bottom diversion body. The diversion effect of the absorption core is poor, which may cause urine leakage, and the urine diversion and absorption effects are poor. Summary of the invention

[0004] Therefore, in view of the above problems, the present invention proposes a core body for urine and feces absorption in different zones and a production process thereof, which solves the technical problems of poor drainage and absorption effects of the core body.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A core for urine and feces partition absorption, comprising a core body, the core body comprising a lower core, two urine cores respectively arranged on the top of the lower core, and a wrapping layer wrapping the lower core and the urine core, the two urine cores are arranged along the length direction, the two urine cores are respectively arranged on both sides of the lower core, a feces liquid channel is formed between the two urine cores, the width of the feces liquid channel is not less than 2 cm, the urine core comprises a first non-woven fabric and a first polymer layer that are compositely arranged, the The thickness of the middle part of the lower core is smaller than the thickness of the two sides, and a V-shaped guide groove is formed at the top of the lower core or the top of the middle part of the lower core; the liquid absorption speed of the urine core is greater than the liquid absorption speed of the lower core; the lower core includes a second non-woven fabric, a second polymer layer, and a second non-woven fabric composited from top to bottom, and the second polymer layer includes a guide part located in the guide groove and a liquid absorption part arranged on both sides of the guide part, the water absorption effect of the guide part gradually increases along the two sides, and the guide effect of the liquid absorption part gradually decreases along the outside.

[0007] Further:

[0008] The first polymer layer is located below the first non-woven fabric.

[0009] The volume of the polymer particles of the urine core is smaller than that of the polymer particles of the lower core, and the secondary liquid absorption effect of the lower core is better than that of the urine core.

[0010] The inner side edge of the urine core is in a wave shape.

[0011] The thickness of the lower core is at least 2.5 times the thickness of the urine core.

[0012] One end of the urine core extends above the guide groove.

[0013] The present invention also provides a production process of a core body for urine and feces partition absorption based on the above, comprising the following steps:

[0014] S1. Urine core molding: The first polymer unloading device includes a first polymer molding bin, a first shell disposed at the bottom of the first polymer molding bin, a first mold wheel rotatably disposed in the first shell, and a first driving device driving the first mold wheel to rotate. The top of the first shell is provided with a first feed port, the bottom of the first shell is provided with a first discharge port, and the first mold wheel is provided with a plurality of first mold grooves. The first polymer material in the first polymer unloading device falls from the first feed port onto the first mold wheel, part of the first polymer material falls directly into the first mold groove, and another part of the first polymer material slides along the surface of the first mold wheel into the first mold groove. When the first mold groove rotates to the first discharge port, the first mold groove sprinkles the first polymer material from the first discharge port onto the first non-woven fabric, forming a first polymer layer on the first non-woven fabric, and the first non-woven fabric and the first polymer layer form the urine core;

[0015] S2. Lower core molding: The second polymer unloading device includes a second polymer molding bin, a second shell disposed at the bottom of the second polymer molding bin, a second mold wheel rotatably disposed in the second shell, and a second driving device driving the second mold wheel to rotate. The second shell is provided with a second feed port at the top, a second discharge port at the bottom of the second shell, and a plurality of second mold grooves on the second mold wheel. The second mold grooves include a first groove body disposed in the middle and a second groove body disposed at both ends. The cross-sectional area of ​​the first groove body gradually increases from the middle to the two ends. The second polymer material falls from the second feed port onto the second mold wheel, and part of the second polymer material Directly fall into the second die groove, another part of the second polymer material slides from the surface of the second die wheel into the second die groove, when the second die groove rotates to the second discharge port, the second die groove sprinkles the second polymer material from the second discharge port onto the second non-woven fabric, forming a second polymer layer on the second non-woven fabric, the second polymer material of the first groove body is sprinkled on the second non-woven fabric, gradually increasing from the middle to the two ends, so that a V-shaped groove is formed in the middle of the top surface of the second polymer layer, and then another layer of the second non-woven fabric is compounded to the second polymer layer to form a lower core body, the lower core body includes the second non-woven fabric, the second polymer layer, and the second non-woven fabric compounded from top to bottom;

[0016] S3. Cutting and separating the urine core: The urine core is turned 180 degrees by the turning device so that the first polymer layer is located below the first non-woven fabric, and the first cutting device cuts the middle of the urine core to form two pieces of urine core, and the two pieces of urine core are separated by a distance by the guide device respectively;

[0017] S4. Compounding: The compounding roller device compounds the two urine cores onto the lower core to form a core body, and a stool channel is formed between the two urine cores.

[0018] Further:

[0019] The step S5 of wrapping the core is also included: a wrapping device wraps the core with a wrapping layer to form a core body.

[0020] The guide device comprises a plurality of guide rollers, annular baffles are arranged on both sides of the guide rollers, and the two urine cores are transported between the two baffles and move outward through the baffles of the plurality of guide rollers.

[0021] By adopting the above technical solution, the beneficial effects of the present invention are:

[0022] The lower core of the present invention mainly plays the role of diversion, feces absorption and liquid absorption, the urine core mainly plays the role of liquid absorption and side leakage prevention, the feces liquid channel can buffer and divert a large amount of liquid, when the liquid enters the feces liquid channel, the liquid can be quickly diverted along the feces liquid channel, reducing the liquid gathered in the middle, the two urine cores have the function of blocking and absorbing urine, improving the diffusion and absorption effect of urine, and preventing urine from side leakage; when the feces fall to the lower core, the lower core can absorb the feces, the feces penetrate into the lower core, the feces liquid channel also has a certain isolation effect, the buttocks will not contact with a large amount of feces, and the baby's red buttocks will be prevented; the physiological positions of male and female babies are different, and the setting of the left and right partitions can adapt to male and female babies, and when wearing, even if the wearing position is upper or lower, it will not affect the absorption of feces and liquid; the urine core only uses a layer of the first non-woven fabric, which is thinner, the liquid seepage and diversion speed is faster, and the liquid can be quickly absorbed to prevent side leakage; the lower core is provided with a diversion groove, which can increase the buffering of feces liquid The storage and diversion space is formed with a slope on both sides, which has a certain resistance to the laterally flowing urine, improves the longitudinal diversion effect of the urine, and at the same time, has a good anti-side leakage effect; further, the volume of the polymer particles of the urine core is smaller than the volume of the polymer particles of the lower core, the larger the volume of the same polymer particles, the stronger its secondary liquid absorption ability, and the smaller the same polymer particles, the better its liquid absorption speed, and by setting up polymer particles of different sizes, the secondary absorption and anti-side leakage effect of the core body are improved; further, the inner edge of the urine core is wavy, which increases the contact area between the laterally moving liquid and the urine core, and has a certain diversion effect; further, the thickness of the lower core is at least 2.5 times the thickness of the urine core, the upper core is thin, and the entire core body can form a thinner structure, thereby improving the absorption rate of the core body; further, one end of the urine core extends above the diversion groove, which can prevent the urine at both ends of the diversion groove from flowing back to the top of the diversion layer, and has a certain reverse osmosis effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a simplified cross-sectional view of the core body.

[0024] Figure 2 It is a top view of the lower core and the urine core.

[0025] Figure 3 It is a cross-sectional view of the lower core.

[0026] Figure 4 It is a cross-sectional view showing that the urine core has a three-layer structure.

[0027] Figure 5 It is a simplified cross-sectional view of another structure of the core body.

[0028] Figure 6 It is a simplified diagram of the production process of the core body.

[0029] Figure 7 It is a structural schematic diagram of the first polymer feeding device.

[0030] Figure 8 It is a schematic diagram of the structure of the first mold wheel.

[0031] Fig. 9 It is a structural schematic diagram of the second polymer feeding device.

[0032] Fig.10 It is a schematic diagram of the structure of the second mold wheel.

[0033] Fig.11 It is a schematic diagram of the structure of the guide device.

[0034] Fig.12 It is a side view of the second polymer feeding device.

[0035] Fig.13 It is a schematic diagram of the structure of the second polymer layer.

[0036] Reference numerals:

[0037] 1. Core body; 11. Lower core; 111. Second non-woven fabric; 112. Second polymer layer; 1121. Guide; 1122. Liquid absorption; 113. Guide groove; 12. Urine core; 121. First non-woven fabric; 122. First polymer layer; 13. Fecal fluid channel; 14. Wrapping layer; 2. First polymer unloading device; 21. First polymer molding bin; 22. First shell; 221. First feed port; 222. First discharge port; 23. First mold wheel; 230. First mold groove; 24. First driving device; 3. The second polymer unloading device; 31, the second polymer molding bin; 311, the first unloading bin; 312, the second unloading bin; 313, the first unloading port; 314, the second unloading port; 32, the second shell; 321, the second feed port; 322, the second discharge port; 33, the second mold wheel; 330, the second mold groove; 3301, the first groove body; 3302, the second groove body; 34, the second driving device; 4, the first cutting knife device; 5, the guiding device; 51, the guiding roller; 52, the baffle; 6, the composite roller device; 7, the wrapping device; 8, the turning device. DETAILED DESCRIPTION

[0038] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0039] refer to Figure 1 and Figure 2The present embodiment provides a core for urine and feces partition absorption, including a core body 1, the core body 1 includes a lower core 11, two urine cores 12 respectively arranged on the top of the lower core 11, the two urine cores 12 are arranged along the length direction, the two urine cores 12 are respectively arranged on both sides of the lower core 11, and a feces liquid channel 13 is formed between the two urine cores 12, the width of the feces liquid channel 13 is not less than 2 cm, the urine core 12 includes a compositely arranged first non-woven fabric 121 and a first polymer layer 122, and the first polymer layer 122 is located below the first non-woven fabric 121. The inner edge of the urine core 12 is wavy. The liquid absorption speed of the above-mentioned urine core 12 is greater than the liquid absorption speed of the lower core 11, and the secondary liquid absorption effect of the lower core 11 is better than the secondary liquid absorption effect of the urine core 12. The volume of the polymer particles of the urine core 12 is smaller than the volume of the polymer particles of the lower core 11. The core body 1 further includes a wrapping layer 14, which wraps the lower core 11 and the two urine cores 12. The thickness of the lower core 11 is at least 2.5 times the thickness of the urine core 12. The thickness of the middle part of the lower core 11 is less than the thickness of the two sides, and a V-shaped guide groove 113 is formed at the top of the middle part of the lower core 11.

[0040] refer to Figure 3 The lower core 11 includes two layers of second non-woven fabric 111 and a second polymer layer 112 disposed between the two layers of second non-woven fabric 111; the lower core 11 may also be provided with only one layer of second non-woven fabric 111; the lower core 11 may also adopt other structures, which are specifically provided according to the circumstances.

[0041] refer to Figure 4 The urine core 12 may also be provided with two layers of the first non-woven fabric 121, namely, including a compositely arranged first non-woven fabric 121, a first polymer layer 122 and a first non-woven fabric 121. In this structure, the thickness of the urine core 12 is relatively large, and the infiltration speed is relatively slow.

[0042] refer to Figure 5 One end of the urine core 12 may not extend above the guide groove 113, which can be set according to specific circumstances.

[0043] The width of the stool passage 13 is not less than 2 cm, and can be set to 2 cm, 3 cm, 4 cm, 5 cm or even larger, depending on the specific situation.

[0044] The wrapping layer 14 may not be provided, and the wrapping layer 14 may also wrap the urine core 12 and the lower core 11 respectively, which is provided according to specific circumstances.

[0045] The first polymer layer 122 may also be disposed on the first non-woven fabric 121 .

[0046] The liquid absorption speed of the urine core 12 may also be equal to or less than the liquid absorption speed of the lower core 11, which is set according to specific circumstances.

[0047] The secondary liquid absorption effect of the urine core 12 may be better than or equal to the secondary liquid absorption effect of the lower core 11 , which can be set according to specific circumstances.

[0048] The volume of the polymer particles of the urine core 12 may also be greater than or equal to the volume of the polymer particles of the lower core 11 .

[0049] The inner side edge of the urine core 12 may also be a straight line, an arc or other structures, which can be set according to specific circumstances.

[0050] The thickness of the lower core 11 may be 3 times, 3.5 times, 4 times or even more times that of the urine core 12. The thickness of the lower core 11 may also be less than 2.5 times the thickness of the urine core 12, such as 1.5 times, 2 times, etc., depending on the specific situation.

[0051] The first non-woven fabric 121 is usually blue, which makes the core body 1 more beautiful.

[0052] The working mode of the present invention is:

[0053] When the diaper or pull-up pants are worn on the human body, urine enters the fecal liquid channel 13 through the diversion layer. The fecal liquid channel 13 can buffer and divert a large amount of urine. The urine can be quickly diverted and diffused along the fecal liquid channel 13, reducing the urine accumulated in the middle. The urine flowing to the two sides can be quickly absorbed by the urine core 12, effectively preventing side leakage. The two urine cores 12 also have the function of blocking and absorbing urine, thereby improving the diffusion and absorption effect of urine. When feces fall to the lower core 11, the lower core 11 can absorb the feces, and the feces penetrate into the lower core 11. The fecal liquid channel 13 and the diversion groove 113 have a certain isolation effect, and the buttocks will not come into contact with a large amount of feces, thereby preventing the baby from having a red buttocks. The physiological positions of male and female babies are different, and the setting of the left and right partitions can adapt to male and female babies. When wearing, even if the baby wears it in an upper or lower position, it will not affect the absorption of feces and liquid.

[0054] refer to Figures 6 to 11 The present invention also provides a production process of a core body for urine and feces partition absorption, comprising the following steps:

[0055] S1. Molding of urine core 12: The first polymer blanking device 2 includes a first polymer molding chamber 21, a first shell 22 disposed at the bottom of the first polymer molding chamber 21, a first die wheel 23 rotatably disposed in the first shell 22, and a first driving device 24 driving the first die wheel 23 to rotate. The top of the first shell 22 is provided with a first feed port 221, the bottom of the first shell 22 is provided with a first discharge port 222, and the first die wheel 23 is provided with a plurality of first die grooves 230. The first polymer material in the first polymer blanking device 2 is discharged from the first die wheel 23. The first polymer material falls from a feed port 221 onto the first die wheel 23, part of the first polymer material falls directly into the first die groove 230, and another part of the first polymer material slides along the surface of the first die wheel 23 into the first die groove 230. When the first die groove 230 rotates to the first discharge port 222, the first die groove 230 sprinkles the first polymer material from the first discharge port 222 onto the first non-woven fabric 121, and forms a first polymer layer 122 on the first non-woven fabric 121. The first non-woven fabric 121 and the first polymer layer 122 form the urine core 12.

[0056] S2. Molding of the lower core 11: The second polymer unloading device 3 includes a second polymer molding chamber 31, a second shell 32 disposed at the bottom of the second polymer molding chamber 31, a second mold wheel 33 rotatably disposed in the second shell 32, and a second driving device 34 that drives the second mold wheel 33 to rotate. The second shell 32 is provided with a second feed port 321 at the top, and a second discharge port 322 at the bottom of the second shell 32. The second mold wheel 33 is provided with a plurality of second mold grooves 330. The second mold grooves 330 include a first groove body 3301 disposed in the middle and a second groove body 3302 disposed at both ends. The cross-sectional area of ​​the first groove body 3301 gradually increases from the middle to the two ends. The second polymer material falls from the second feed port 321 to the second mold wheel 33, and part of the second polymer material falls directly. The second polymer material of the first groove body 3301 is sprinkled on the second non-woven fabric 111, and gradually increases from the middle to the two ends, so that a V-shaped groove is formed in the middle of the top surface of the second polymer layer 112, and then another layer of the second non-woven fabric 111 is compounded to the second polymer layer 112 to form a lower core body 11, and the lower core body 11 includes the second non-woven fabric 111, the second polymer layer 112, and the second non-woven fabric 111 compounded from top to bottom.

[0057] S3. Cutting and separation of the urine core 12: The urine core 12 is flipped 180 degrees by the flipping device 8, so that the first polymer layer 122 is located below the first non-woven fabric 121, and the first cutting device 4 cuts the middle of the urine core 12, and the cutting line is wavy, forming two pieces of urine core 12, and the two pieces of urine core 12 are separated by a distance through the guide device 5, and the guide device 5 includes a plurality of guide rollers 51, and annular baffles 52 are provided on both sides of the guide rollers 51, and the baffles 52 move outward through the plurality of guide rollers 51.

[0058] S4. Compounding: The compounding roller device 6 compounds the two urine cores 12 onto the lower core 11 to form a core body 1 , and a stool channel 13 is formed between the two urine cores 12 . One end of the urine core 12 extends above the guide groove 113 .

[0059] S5. Wrapping the core: The wrapping device 7 wraps the core with a wrapping layer 14 to form a core body 1.

[0060] The first polymer molding chamber 21 and the second polymer molding chamber 31 are well-known devices and will not be described in detail herein.

[0061] There is a gap between the inner wall of the first shell 22 and the outer wall of the first mold wheel 23. The gap distance is usually set to between 1 mm and 6 mm, and can also be set to other values, depending on the specific situation.

[0062] There is a gap between the inner wall of the second shell 32 and the outer wall of the second mold wheel 33. The gap distance is usually set to between 1 mm and 6 mm, and can also be set to other values, depending on the specific situation.

[0063] refer to Figure 7 The position of the first discharge port 222 is set in the range of 30 degrees to 60 degrees on the lower right side or the lower left side of the first shell 22, and is usually set to 45 degrees. In this way, when the first polymer material is discharged from the first discharge port 222, the first polymer material can be sprinkled onto the first non-woven fabric 121 in a downward inclined direction, and the first polymer material is in contact with the first non-woven fabric 121 at a direction of approximately 45 degrees. The first polymer material and the first non-woven fabric 121 have relatively balanced forces in the vertical and horizontal directions. The first polymer material sprinkled on the first non-woven fabric 121 will move horizontally, contact and mix with other first polymer materials, and form a relatively uniform first polymer layer 122.

[0064] The first discharge port 222 may also be located directly below the first shell 22. In this structure, the horizontal speed of the first polymer material is relatively high, the distance the first polymer material moves on the first non-woven fabric 121 is relatively large, and the impact force between the first polymer materials is large, which may easily lead to uneven material feeding. The first discharge port 222 may also be located on the left or right side of the first shell 22. In this structure, the first polymer material falls vertically, which may cause the first polymer material to accumulate or break on the first non-woven fabric 121, which may easily lead to uneven material feeding.

[0065] The position of the first discharge port 222 may also be set within a range of 15 degrees, 40 degrees, 50 degrees or other values ​​on the lower right side or lower left side of the first shell 22 , depending on the specific situation.

[0066] refer to Fig. 9 The position of the second discharge port 322 is set within the range of 30 to 60 degrees on the lower right or lower left side of the second shell 32, usually set to 45 degrees, and can also be other positions, depending on the specific situation.

[0067] The first driving device 24 and the second driving device 34 may adopt driving motors or other devices, which are well-known devices and will not be described in detail here.

[0068] The first polymer material can be made of SAP, wood pulp or other polymer materials or a mixture of several of them.

[0069] The second polymer material can be made of SAP, wood pulp or other polymer materials or a mixture of several of them.

[0070] The blade of the first cutting device 4 is in a wave shape, and may also be in a ring structure, a spiral structure or other shape structure, to cut the inner side of the urine core 12 into a corresponding shape, which is specifically set according to the situation.

[0071] The above-mentioned composite roller device 6 is a well-known device and will not be described in detail here.

[0072] The wrapping device 7 is a well-known device that can wrap the wrapping layer 14 and will not be described in detail herein.

[0073] The above-mentioned turning device 8 can turn the urine core 12 180 degrees, which is a well-known device and will not be described in detail here.

[0074] The guide device 5 may also be provided with a plurality of clamping rollers, guide plates or other structures for guidance, which may be provided according to specific circumstances.

[0075] A winding roller device can be set at the rear end of the composite roller device 6 to roll up the core body 1. The above-mentioned production device can also be set on a disposable sanitary product production line to composite the formed core body 1 with other surface layers such as a guide layer and a liquid-impermeable bottom layer to form pull-up pants, diapers, sanitary napkins or other disposable sanitary products.

[0076] The second polymer blanking device 3 of the present invention can adopt the following blanking process:

[0077] refer to Fig.12 and Fig.13 A first lower feed bin 311 and two second lower feed bins 312 are provided on the top of the second polymer molding bin 31, the first lower feed bin 311 is located in the middle of the second lower feed bin 312, the first lower feed bin 311 contains fluff pulp, and the second lower feed bin 312 contains SAP, a first lower feed port 313 is provided on the first lower feed bin 311, and the cross-section of the first lower feed port 313 is an isosceles trapezoidal structure, the fluff pulp in the middle of the first lower feed port 313 falls in a vertical direction, mainly falling on the first trough body 3301, the fluff pulp on both sides falls obliquely along the two side directions, mixes with the SAP on both sides, and mainly falls on the second trough body 3302; the SAP on the outer side of the second lower feed port 314 falls vertically, mainly falling on the second trough body 3302, the inner SAP falls obliquely along the inner direction, mixes with the fluff pulp in the middle, and mainly falls on the first trough body 3301. The fluff pulp content at each position of the first trough body 3301 is the same, and the SAP content gradually increases along the two sides; the SAP content at each position of the second trough body 3302 is the same, and the fluff pulp content gradually increases along the inner direction; the second polymer layer 112 includes a guide portion 1121 located in the guide groove 113 and a liquid absorption portion 1122 arranged on both sides of the guide portion 1121.

[0078] Since SAP has good water absorption and fluff pulp has good diffusion, the diversion effect of the diversion part 1121 is better, the gaps between the polymers on the diversion part 1121 are large, which can increase the infiltration speed of feces and provide a large buffer space for feces. The water absorption effect of the diversion part 1121 gradually increases along both sides, and has a certain liquid absorption effect; the liquid absorption effect of the liquid absorption part 1122 is better, and can absorb a large amount of liquid. The diversion effect of the liquid absorption part 1122 gradually decreases along the outside, and the more urine diffuses to the outside on the liquid absorption part 1122, the worse its diversion effect is, which has a good anti-side leakage effect. In this structure, the urine of the entire lower core 11 is mainly absorbed on both sides, and the middle part mainly plays the role of diversion and feces absorption, so as to better realize the partitioning of urine and feces.

[0079] The extension lines of the two oblique sides of the isosceles trapezoidal structure of the first feed opening 313 can be extended to the ends of the outer sides of the two second trough bodies 3302, so that the fluff pulp can cover the entire lower core body 11, and the right-angled trapezoidal oblique sides of the second feed opening 314 can be extended to the middle of the first trough body 3301, so that the SAP can cover the entire lower core body 11, thereby improving the liquid conduction and absorption effects of the lower core body 11.

[0080] The core body 1 of the present invention can be used in diapers, pull-on pants, sanitary napkins or other disposable sanitary products.

[0081] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A core for absorbing urine and feces in different zones, characterized in that: The invention comprises a core body, wherein the core body comprises a lower core, two urine cores respectively arranged on the top of the lower core, and a wrapping layer wrapping the lower core and the urine core, the two urine cores are arranged along the length direction, the two urine cores are respectively arranged on both sides of the lower core, a fecal liquid channel is formed between the two urine cores, and the width of the fecal liquid channel is not less than 2 cm, the urine core comprises a compositely arranged first non-woven fabric and a first polymer layer, the thickness of the middle part of the lower core is less than the thickness of the two sides, and a V-shaped guide groove is formed at the top of the lower core or the top of the middle part of the lower core; the liquid absorption speed of the urine core is greater than the liquid absorption speed of the lower core; the lower core comprises a second non-woven fabric, a second polymer layer, and a second non-woven fabric composited from top to bottom, the second polymer layer comprises a guide part located in the guide groove, and a liquid absorption part arranged on both sides of the guide part, the water absorption effect of the guide part is gradually enhanced along the two sides, and the guide effect of the liquid absorption part is gradually reduced along the outer side.

2. A core for urine and feces absorption according to claim 1, characterized in that: The first polymer layer is located below the first non-woven fabric.

3. The core for urine and feces absorption according to claim 1, characterized in that: The volume of the polymer particles of the urine core is smaller than that of the polymer particles of the lower core, and the secondary liquid absorption effect of the lower core is better than that of the urine core.

4. The core for urine and feces absorption according to claim 1, characterized in that: The inner side edge of the urine core is in a wave shape.

5. The core for urine and feces absorption according to claim 1, characterized in that: The thickness of the lower core is at least 2.5 times the thickness of the urine core.

6. The core for urine and feces absorption according to claim 1, characterized in that: One end of the urine core extends above the guide groove.

7. A production process for a core body for urine and feces partition absorption based on claim 1, characterized in that: The following steps are involved: S1. Urine core molding: The first polymer unloading device includes a first polymer molding bin, a first shell disposed at the bottom of the first polymer molding bin, a first mold wheel rotatably disposed in the first shell, and a first driving device driving the first mold wheel to rotate. The top of the first shell is provided with a first feed port, the bottom of the first shell is provided with a first discharge port, and the first mold wheel is provided with a plurality of first mold grooves. The first polymer material in the first polymer unloading device falls from the first feed port onto the first mold wheel, part of the first polymer material falls directly into the first mold groove, and another part of the first polymer material slides along the surface of the first mold wheel into the first mold groove. When the first mold groove rotates to the first discharge port, the first mold groove sprinkles the first polymer material from the first discharge port onto the first non-woven fabric, forming a first polymer layer on the first non-woven fabric, and the first non-woven fabric and the first polymer layer form the urine core; S2. Lower core molding: The second polymer material discharge device includes a second polymer molding bin, a second shell disposed at the bottom of the second polymer molding bin, a second mold wheel rotatably disposed in the second shell, and a second driving device driving the second mold wheel to rotate. A second feed port is disposed at the top of the second shell, a second discharge port is disposed at the bottom of the second shell, and a plurality of second mold grooves are disposed on the second mold wheel. The second mold grooves include a first groove body disposed in the middle and a second groove body disposed at both ends. The cross-sectional area of ​​the first groove body gradually increases from the middle to both ends. The second polymer material falls from the second feed port. When the second die wheel is on the second die, part of the second polymer material falls directly into the second die groove, and another part of the second polymer material slides from the surface of the second die wheel into the second die groove. When the second die groove rotates to the second discharge port, the second die groove sprinkles the second polymer material from the second discharge port onto the second non-woven fabric to form a second polymer layer on the second non-woven fabric. The second polymer material of the first groove body is sprinkled on the second non-woven fabric, gradually increasing from the middle to the two ends, so that a V-shaped groove is formed in the middle of the top surface of the second polymer layer, and then another layer of the second non-woven fabric is compounded onto the second polymer layer to form a lower core body; A first lower feed bin and two second lower feed bins are provided on the top of the second polymer molding bin, the first lower feed bin is located in the middle of the second lower feed bin, the first lower feed bin contains fluff pulp, the second lower feed bin contains SAP, the first lower feed bin is provided with a first lower feed port, the fluff pulp in the middle of the first lower feed port falls in a vertical direction, mainly falls on the first trough body, the fluff pulp on both sides falls obliquely in the directions of both sides, mixes with the SAP on both sides, and mainly falls on the second trough body; the SAP on the outer side of the second lower feed port falls vertically, mainly falls on the second trough body, the SAP on the inner side falls obliquely in the inner side direction, mixes with the fluff pulp in the middle, and mainly falls on the first trough body, the SAP content of the first trough body gradually increases along the directions of both sides, and the fluff pulp content of the second trough body gradually increases along the inner side direction; S3. Cutting and separating the urine core: The urine core is turned 180 degrees by the turning device so that the first polymer layer is located below the first non-woven fabric, and the first cutting device cuts the middle of the urine core to form two pieces of urine core, and the two pieces of urine core are separated by a distance by the guide device respectively; S4. Compounding: The compounding roller device compounds the two urine cores onto the lower core to form a core body, and a stool channel is formed between the two urine cores.

8. The production process of a core body for urine and feces absorption according to claim 7, characterized in that: The step S5 of wrapping the core is also included: a wrapping device wraps the core with a wrapping layer to form a core body.

9. The production process of a core body for urine and feces absorption according to claim 7, characterized in that: The guide device comprises a plurality of guide rollers, annular baffles are arranged on both sides of the guide rollers, and the two urine cores are transported between the two baffles and move outward through the baffles of the plurality of guide rollers.

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