Production process of pants-type sanitary napkin capable of preventing side leakage and blocking rear leakage

Abstract

The invention relates to the field of disposable hygienic products, and provides a production process of a pants-type sanitary towel capable of preventing side leakage and blocking rear leakage, which comprises the following steps: forming an absorption core body, compounding a liquid-tight bottom layer, forming a leakage-proof partition edge, applying the leakage-proof partition edge, forming an outer clothes layer, applying a core body main body, forming a rear leakage-proof pocket and forming a pull-up pants main body. The leakage-proof partition edge and the rear leakage-proof pocket do not need manual application, the production efficiency is greatly improved, the cost is reduced, the first leakage-proof part and the second leakage-proof part have the double leakage-proof effect, the rear leakage-proof pocket can prevent urine or excrement from leaking out of the rear end and can prevent the urine and the excrement from flowing backwards when the pull-ups are replaced, and the leakage-proof effect is good. Especially in the replacement process, when a baby urinates or defecates, side leakage and rear leakage of urine or excrement liquid of the baby can be well prevented, the leakage-proof effect is greatly improved, and the technical problems that the leakage-proof effect of pull-ups is poor, and side leakage and rear leakage of urine or excrement liquid possibly occur when the pull-ups are replaced are solved.

Description

Technical Field

[0001] The invention relates to the field of disposable sanitary products, in particular to a production process of a trouser-type sanitary napkin capable of preventing side leakage and back leakage. Background Art

[0002] Pants-type sanitary napkins are also called pull-up pants. When the baby wears them, the leak-proof partition edge extends inward and contacts the human body. When the baby moves, the leak-proof partition edge may deviate, resulting in insufficient fit and easy leakage. When the baby changes the pull-up pants, the baby lies on the diaper pad and the sealing lines on both sides of the elastic waist are torn open. At this time, the pull-up pants are laid flat on the diaper pad. If there is too much feces or urine on the pull-up pants, it is easy to cause the feces or urine to flow backwards, especially during the changing process, when the baby urinates or defecates, urine or feces are prone to side leakage and back leakage, and may flow to the baby's waist or back, which needs to be cleaned. Summary of the invention

[0003] Therefore, in view of the above problems, the present invention proposes a production process for a pant-type sanitary napkin that prevents side leakage and back leakage, which solves the technical problem that pull-up pants have poor anti-leakage effect and urine or feces may leak sideways and back when changing pull-up pants.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A production process for a trouser-type sanitary napkin capable of preventing side leakage and back leakage, comprising the following steps:

[0006] (1) Absorbent core molding:

[0007] The polymer carrier passes through the polymer feeding device, and the polymer feeding device feeds the polymer material onto the polymer carrier to form an absorbent core;

[0008] (2) Composite liquid-impermeable bottom layer:

[0009] Compounding the liquid-impermeable bottom layer and the absorbent core by a first compounding device;

[0010] (3) Leak-proof edge molding:

[0011] The first elastic band applying device applies the first elastic band to the non-woven fabric of the edge, and the first cutting device cuts the non-woven fabric of the edge into two parts to form two oppositely arranged leakproof edges, each leakproof edge comprising a fixed part, a first leakproof part and a second leakproof part, and the first elastic band is respectively applied to the first leakproof part near the fixed part, the junction of the first leakproof part and the second leakproof part, and the end of the second leakproof part;

[0012] (4) Apply leak-proof diaphragms:

[0013] The fixing part of the leakproof partition edge is compositely fixed to the two side edges of the liquid-impermeable bottom layer by a second composite device, the junction of the first leakproof part and the second leakproof part of the leakproof partition edge is folded by a folding device, and then welded by a first welding device to form a first welding part, the first welding parts are arranged at equal distances, and the second cutting device cuts along the middle of the first welding part to cut into a plurality of block-shaped core bodies;

[0014] (5) Outer garment layer molding:

[0015] The second elastic band applying device applies the second elastic band to the two ends of the outer garment non-woven fabric to form an outer garment layer, wherein the two ends of the outer garment layer having the second elastic band are a front elastic waistline and a rear elastic waistline;

[0016] (6) Applying the core body:

[0017] The core body is rotated 90 degrees by a transfer wheel device and applied to the outer garment layer;

[0018] (7) Anti-rear leakage pocket forming:

[0019] Compounding and welding the back leakage prevention layer by a second welding device to form a second welding portion, thereby forming a back leakage prevention pocket with an opening toward the core body;

[0020] (8) Main body molding of pull-up pants:

[0021] The folding device folds the two elastic waistbands so that the two elastic waistbands are stacked, the third welding device welds to form a third welding portion, and the third cutting device cuts in the middle of the third welding portion to form a pull-up pants body with a sheet structure.

[0022] Further:

[0023] In step (6), one end of the absorbent core extends to the rear elastic waistband. In step (7), when the rear leakage prevention layer is compounded, the rear leakage prevention layer covers the rear end of the absorbent core, and the rear end of the absorbent core extends into the rear leakage prevention pocket.

[0024] In step (7), the elastic nonwoven fabric and the absorbent layer are compounded by a third compounding device to form a back leakage prevention layer.

[0025] Step (7) also includes forming the front leakage prevention pocket, compounding and welding the front leakage prevention layer through a second welding device to form a second welding portion, thereby forming the front leakage prevention pocket with its opening facing the absorbent core.

[0026] In step (7), the elastic nonwoven fabric and the absorbent layer are compounded by a third compounding device to form a front leakage prevention layer.

[0027] The folding device includes a first negative pressure mechanism. In step (4), before the leak-proof partition edge is folded, it passes through the first negative pressure mechanism. The first negative pressure mechanism includes a first negative pressure box and a first conveying plate arranged on the top of the first negative pressure box. The first conveying plate is provided with adsorption holes. The first negative pressure mechanism includes a horizontal conveying part, a first transition conveying part and a bending conveying part. The leak-proof partition edge is first horizontally conveyed through the horizontal conveying part. When passing through the first transition conveying part, one end of the leak-proof partition edge slowly moves upward to 90 degrees. When the leak-proof partition edge is located at the bending conveying part, it is an L-shaped structure.

[0028] The folding device also includes a second negative pressure mechanism, which includes a second negative pressure box and a second conveying plate arranged on the top of the second negative pressure box. The second conveying plate is provided with adsorption holes. The second negative pressure mechanism includes a vertical conveying part, a second transition conveying part and a downward pressure conveying part connected in sequence. The vertical conveying part is connected to the bending conveying part. When the leak-proof partition passes through the vertical conveying part, the L-shaped structure is maintained for conveying. At the same time, the leak-proof partition is applied to the liquid-impermeable bottom layer. The leak-proof partition passes through the second transition conveying part, and the second leak-proof part is gradually pressed downward. When the downward pressure conveying part is used, the second leak-proof part is folded and pressed against the first leak-proof part.

[0029] When the leak-proof partition leaves the second negative pressure mechanism, the first welding device performs welding.

[0030] The polymer feeding device includes a molding bin, a mold wheel arranged at the bottom of the molding bin, and a driving motor for driving the mold wheel to rotate. A plurality of adsorption holes are arranged around the mold wheel, and the density of the adsorption holes in the middle is less than the density of the adsorption holes on both sides, so that the amount of polymer material adsorbed in the middle of the mold wheel is less than the amount of polymer material adsorbed on both sides, and a longitudinal guide groove is formed on the top of the absorbent core.

[0031] The guide groove can extend into the rear leakage prevention pocket.

[0032] By adopting the above technical solution, the beneficial effects of the present invention are:

[0033] The pant-type sanitary napkin of the present invention can realize automatic production, and the leak-proof partition edge and the rear leak-proof pocket do not need to be applied manually, which greatly improves the production efficiency and reduces the cost; the leak-proof partition edge has a first leak-proof part and a second leak-proof part, the first leak-proof part extends inwardly to fit the leg, and the second leak-proof part extends outwardly to fit the leg, which has a double leak-proof effect, and the two are formed on the same fabric and interact with each other, which greatly improves the leak-proof effect; the rear elastic waistband is provided with an anti-leakage pocket, which can not only prevent urine or feces from leaking from the rear end, but also prevent urine and feces from flowing out backwards when changing the pull-up pants, especially during the changing process, when the baby urinates or defecates, it can well prevent the baby's urine or feces from leaking sideways and leaking from the rear; further, the rear leak-proof pocket adopts a one-piece composite structure, and compared with the single-piece application method, the process is simpler and more accurate, and does not require other applications. Device; the rear end of the absorption core extends into the anti-rear leakage pocket, which can effectively prevent the rear end of the absorption core from leaking backward; further, the anti-rear leakage layer includes an elastic non-woven fabric and an absorption layer, the elastic non-woven fabric is elastic and can shrink, and when the liquid flows to the rear end, it can be appropriately expanded according to the pressure of the liquid, and the absorption layer can absorb liquid to prevent the liquid from entering the anti-rear leakage pocket and then flowing out; further, the anti-front leakage pocket has the characteristic of preventing front leakage. When changing the pull-up pants, the baby suddenly urinates or defecates, which can well prevent the baby's urine or feces from leaking forward; further, the folding device adopts a first negative pressure mechanism and a second negative pressure mechanism, and adopts a negative pressure adsorption method, which can stably compound and fold the anti-leakage partition edge, and the anti-leakage partition edge will not deviate when being folded, thereby improving the quality of the product; further, the guide groove has a longitudinal guide, which can prevent excessive urine from leaking sideways. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural diagram of the present invention.

[0035] Figure 2 It is a simplified structural diagram of the first negative pressure mechanism.

[0036] Figure 3 It is a simplified structural diagram of the second negative pressure mechanism.

[0037] Figure 4 It is a simplified structural diagram of the polymer feeding device.

[0038] Figure 5 It is a schematic diagram of the structure of the mold wheel edge expansion.

[0039] Figure 6 It is a schematic diagram of the structure of a pant-type sanitary napkin.

[0040] Figure 7 It is a cross-sectional view of the leakproof bulkhead.

[0041] Figure 8 It is a partial cross-sectional view of the anti-leakage layer.

[0042] Fig. 9 It is a structural schematic diagram of an absorbent core body provided with a guide groove.

[0043] Fig.10 It is a structural schematic diagram of a pant-type sanitary napkin with a front leakage prevention pocket.

[0044] Fig.11 It is a structural schematic diagram of the second welding device.

[0045] Reference numerals:

[0046] 1. Pull-up pants body; 10. Polymer carrier; 11. Absorbent core; 111. Guide groove; 12. Front elastic waist; 13. Rear elastic waist; 14. Leak-proof edge; 141. Fixing part; 142. First leak-proof part; 143. Second leak-proof part; 144. First elastic band; 15. Back leak-proof layer; 150. Back leak-proof pocket; 151. Elastic non-woven fabric; 152. Absorbent layer; 16. Front leak-proof layer; 160. Front leak-proof pocket; 17. Liquid-impermeable bottom layer; 18. First welding part; 19. Second welding part; 2. Polymer feeding device; 21. Forming chamber; 22. Die wheel; 220. Adsorption hole; 23. Driving motor; 31. First composite device; 32. First elastic band applying device; 33. First cutting device; 34. Second composite device; 35. a first welding device; 36, a second cutting device; 37, a second rubber band applying device; 38, a transfer wheel device; 39, a third composite device; 41, a second welding device; 411, a bottom roller; 412, a hot pressing roller; 413, a driving device; 414, an annular protrusion; 415, a long strip; 416, a cavity; 417, a heating tube; 418, a rotary joint; 42, a folding device; 43, a third welding device; 44, a third cutting device; 5, a first negative pressure mechanism; 51, a first negative pressure box; 52, a first conveying plate; 53, a horizontal conveying portion; 54, a first transition conveying portion; 55, a bending conveying portion; 6, a second negative pressure mechanism; 61, a second negative pressure box; 62, a second conveying plate; 63, a vertical conveying portion; 64, a second transition conveying portion; 65, a downward pressure conveying portion. DETAILED DESCRIPTION

[0047] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0048] refer to Figures 1 to 10 This embodiment provides a production process for a pant-type sanitary napkin that prevents side leakage and back leakage, comprising the following steps:

[0049] (1) Absorbent core 11 molding:

[0050] The polymer carrier 10 passes through the polymer blanking device 2 , and the polymer blanking device 2 blanks the polymer material onto the polymer carrier 10 to form an absorbent core 11 .

[0051] (2) Composite liquid-impermeable bottom layer 17:

[0052] The liquid-impermeable backsheet 17 and the absorbent core 11 are laminated together by a first laminating device 31 .

[0053] (3) Leak-proof partition 14 molding:

[0054] The first elastic band applying device 32 applies the first elastic band 144 to the partition non-woven fabric, and the first cutting device 33 cuts the partition non-woven fabric into two parts to form two oppositely arranged leak-proof partitions 14, each leak-proof partition 14 includes a fixed part 141, a first leak-proof part 142 and a second leak-proof part 143, and the first elastic band 144 is respectively applied to the first leak-proof part 142 near the fixed part 141, the junction of the first leak-proof part 142 and the second leak-proof part 143, and the end of the second leak-proof part 143.

[0055] (4) Applying leakproof partition 14:

[0056] The fixing portion 141 of the leak-proof partition 14 is fixed to the two side edges of the liquid-impermeable bottom layer 17 by the second composite device 34, and the leak-proof partition 14 is folded along the junction of the first leak-proof portion 142 and the second leak-proof portion 143 by the folding device, and then welded by the first welding device 35 to form the first welding portion 18. The first welding portions 18 are arranged equidistantly, and the second cutting device 36 cuts along the middle portion of the first welding portion 18 to cut into a plurality of block-shaped core bodies.

[0057] The folding device includes a first negative pressure mechanism 5. Before the leak-proof partition 14 is folded, it passes through the first negative pressure mechanism 5. The first negative pressure mechanism 5 includes a first negative pressure box 51 and a first conveying plate 52 arranged on the top of the first negative pressure box 51. The first conveying plate 52 is provided with an adsorption hole 220. The first negative pressure mechanism 5 includes a horizontal conveying part 53, a first transition conveying part 54 and a bending conveying part 55. The leak-proof partition 14 is first horizontally conveyed through the horizontal conveying part 53. When passing through the first transition conveying part 54, one end of the leak-proof partition 14 slowly moves upward to 90 degrees. When the leak-proof partition 14 is located at the bending conveying part 55, it is an L-shaped structure.

[0058] The folding device also includes a second negative pressure mechanism 6, which includes a second negative pressure box 61 and a second conveying plate 62 arranged on the top of the second negative pressure box 61. The second negative pressure mechanism 6 includes a vertical conveying part 63, a second transition conveying part 64 and a downward pressure conveying part 65 connected in sequence. The vertical conveying part 63 is connected to the bending conveying part 55. When the leak-proof partition 14 passes through the vertical conveying part 63, it maintains an L-shaped structure for conveying. At the same time, the leak-proof partition 14 is applied to the liquid-impermeable bottom layer 17. The leak-proof partition 14 passes through the second transition conveying part 64, and the second leak-proof part 143 is gradually pressed downward. When the downward pressure conveying part 65 is used, the second leak-proof part 143 is folded and pressed against the first leak-proof part 142. When the leak-proof partition 14 leaves the second negative pressure mechanism 6, the first welding device 35 performs welding.

[0059] (5) Outer garment layer molding:

[0060] The second elastic applying device 37 applies the second elastic to both ends of the outer garment nonwoven fabric to form an outer garment layer. The outer garment layer has two ends of the second elastic, namely a front elastic waist circumference 12 and a rear elastic waist circumference 13 .

[0061] (6) Applying the core body:

[0062] The core body is rotated 90 degrees by the transfer wheel device 38 and applied to the outer garment layer; one end of the absorbent core 11 extends to the rear elastic waist 13.

[0063] (7) Anti-rear leakage bag 150 molding:

[0064] The elastic nonwoven fabric 151 and the absorbent layer 152 are compounded by the third compounding device 39 to form the back leakage prevention layer 15, and the back leakage prevention layer 15 is welded by the second welding device 41 to form the second welding portion 19, forming the back leakage prevention pocket 150 with the opening facing the core body. The back leakage prevention layer 15 covers the rear end of the absorbent core 11, and the rear end of the absorbent core 11 extends into the back leakage prevention pocket 150.

[0065] (8) Forming of the pull-up pants body 1:

[0066] The folding device 42 folds the two elastic waistbands so that the two elastic waistbands overlap, the third welding device 43 welds to form a third welding portion, and the third cutting device 44 cuts in the middle of the third welding portion to form a pull-up pants body 1 with a sheet structure.

[0067] In another embodiment, step (7) further includes forming the front leakage prevention bag 160, welding the front leakage prevention layer 16 through the second welding device 41 to form a second welding portion 19, and forming the front leakage prevention bag 160 with an opening toward the absorbent core 11. The elastic non-woven fabric 151 and the absorbent layer 152 are compounded by the third compounding device 39 to form the front leakage prevention layer 16.

[0068] In another embodiment, the polymer feeding device 2 includes a molding bin 21, a mold wheel 22 arranged at the bottom of the molding bin 21, and a driving motor 23 for driving the mold wheel 22 to rotate. A plurality of adsorption holes 220 are arranged around the mold wheel 22, and the density of the adsorption holes 220 in the middle is less than the density of the adsorption holes 220 on both sides, so that the amount of polymer material adsorbed in the middle of the mold wheel 22 is less than the amount of polymer material adsorbed on both sides, and a longitudinal guide groove 111 is formed on the top of the absorbent core 11, and the guide groove 111 can extend into the anti-rear leakage bag 150.

[0069] The transfer wheel device 38 may adopt Chinese patent application number: 200780050074.4, invention name: device for changing the spacing between conveyed products and rotating these products, or other transfer wheel devices for disposable sanitary products may be adopted, which is a well-known structure and will not be described in detail here.

[0070] The polymer carrier 10 may be a non-woven fabric or other fabrics, which are well-known fabrics and will not be described in detail herein.

[0071] The second composite device 34 is also a hot pressing device, an ultrasonic welding device or other devices, which are well-known devices and will not be described in detail here.

[0072] The first welding device 35, the second welding device 41, the third welding device 43, the second cutting device 36, the third cutting device 44, the first elastic band applying device 32, the second elastic band applying device 37, the third compounding device 39, and the folding device 42 are well-known devices and will not be described in detail here.

[0073] refer to Fig.11 The second welding device 41 includes a bottom roller 411, a hot pressing roller 412, and a driving device 413 for driving the bottom roller 411 and the hot pressing roller 412 to rotate. The hot pressing roller 412 includes an annular protrusion 414 and at least one long strip 415 connected to the annular protrusion 414. A cavity 416 is provided in the hot pressing roller 412. A heating tube 417 is provided in the cavity 416. The heating tube 417 is connected to the hot pressing roller 412 through a rotary joint 418. The annular protrusion 414 and the long strip 415 perform hot pressing on the anti-front leakage layer 16 to form a first welding portion 18 of a gate-shaped structure.

[0074] 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 process for producing a pant-type sanitary napkin that prevents side leakage and back leakage, characterized in that: The following steps are involved: (1) Absorbent core molding: The polymer carrier passes through the polymer feeding device, and the polymer feeding device feeds the polymer material onto the polymer carrier to form an absorbent core; (2) Composite liquid-impermeable bottom layer: Compounding the liquid-impermeable bottom layer and the absorbent core by a first compounding device; (3) Leak-proof edge molding: The first elastic band applying device applies the first elastic band to the non-woven fabric of the edge, and the first cutting device cuts the non-woven fabric of the edge into two parts to form two oppositely arranged leakproof edges, each leakproof edge comprising a fixed part, a first leakproof part and a second leakproof part, and the first elastic band is respectively applied to the first leakproof part near the fixed part, the junction of the first leakproof part and the second leakproof part, and the end of the second leakproof part; (4) Apply leak-proof diaphragms: The fixing part of the leakproof partition edge is compositely fixed to the two side edges of the liquid-impermeable bottom layer by a second composite device, the junction of the first leakproof part and the second leakproof part of the leakproof partition edge is folded by a folding device, and then welded by a first welding device to form a first welding part, the first welding parts are arranged at equal distances, and the second cutting device cuts along the middle of the first welding part to cut into a plurality of block-shaped core bodies; (5) Outer garment layer molding: The second elastic band applying device applies the second elastic band to the two ends of the outer garment non-woven fabric to form an outer garment layer, wherein the two ends of the outer garment layer having the second elastic band are a front elastic waistline and a rear elastic waistline; (6) Applying the core body: The core body is rotated 90 degrees by a transfer wheel device and applied to the outer garment layer; (7) Anti-rear leakage pocket forming: Compounding and welding the back leakage prevention layer by a second welding device to form a second welding portion, thereby forming a back leakage prevention pocket with an opening toward the core body; (8) Main body molding of pull-up pants: The folding device folds the two elastic waistbands so that the two elastic waistbands are stacked, the third welding device welds to form a third welding portion, and the third cutting device cuts in the middle of the third welding portion to form a pull-up pants body with a sheet structure.

2. A process for producing a pant-type sanitary napkin capable of preventing side leakage and back leakage according to claim 1, characterized in that: In step (6), one end of the absorbent core extends to the rear elastic waistband. In step (7), when the rear leakage prevention layer is compounded, the rear leakage prevention layer covers the rear end of the absorbent core, and the rear end of the absorbent core extends into the rear leakage prevention pocket.

3. The process for producing a pant-type sanitary napkin capable of preventing side leakage and back leakage according to claim 1, characterized in that: In step (7), the elastic nonwoven fabric and the absorbent layer are compounded by a third compounding device to form a back leakage prevention layer.

4. The process for producing a pant-type sanitary napkin capable of preventing side leakage and back leakage according to claim 1, characterized in that: Step (7) also includes forming the front leakage prevention pocket, compounding and welding the front leakage prevention layer through a second welding device to form a second welding portion, thereby forming the front leakage prevention pocket with its opening facing the absorbent core.

5. The process for producing a pant-type sanitary napkin capable of preventing side leakage and back leakage according to claim 4, characterized in that: In step (7), the elastic nonwoven fabric and the absorbent layer are compounded by a third compounding device to form a front leakage prevention layer.

6. The process for producing a pant-type sanitary napkin capable of preventing side leakage and back leakage according to claim 1, characterized in that: The folding device includes a first negative pressure mechanism. In step (4), before the leak-proof partition edge is folded, it passes through the first negative pressure mechanism. The first negative pressure mechanism includes a first negative pressure box and a first conveying plate arranged on the top of the first negative pressure box. The first conveying plate is provided with adsorption holes. The first negative pressure mechanism includes a horizontal conveying part, a first transition conveying part and a bending conveying part. The leak-proof partition edge is first horizontally conveyed through the horizontal conveying part. When passing through the first transition conveying part, one end of the leak-proof partition edge slowly moves upward to 90 degrees. When the leak-proof partition edge is located at the bending conveying part, it is an L-shaped structure.

7. A process for producing a pant-type sanitary napkin capable of preventing side leakage and back leakage according to claim 6, characterized in that: The folding device also includes a second negative pressure mechanism, which includes a second negative pressure box and a second conveying plate arranged on the top of the second negative pressure box. The second conveying plate is provided with adsorption holes. The second negative pressure mechanism includes a vertical conveying part, a second transition conveying part and a downward pressure conveying part connected in sequence. The vertical conveying part is connected to the bending conveying part. When the leak-proof partition passes through the vertical conveying part, the L-shaped structure is maintained for conveying. At the same time, the leak-proof partition is applied to the liquid-impermeable bottom layer. The leak-proof partition passes through the second transition conveying part, and the second leak-proof part is gradually pressed downward. When the downward pressure conveying part is used, the second leak-proof part is folded and pressed against the first leak-proof part.

8. The process for producing a pant-type sanitary napkin capable of preventing side leakage and back leakage according to claim 7, characterized in that: When the leak-proof partition leaves the second negative pressure mechanism, the first welding device performs welding.

9. The process for producing a pant-type sanitary napkin capable of preventing side leakage and back leakage according to claim 1, characterized in that: The polymer feeding device includes a molding bin, a mold wheel arranged at the bottom of the molding bin, and a driving motor for driving the mold wheel to rotate. A plurality of adsorption holes are arranged around the mold wheel, and the density of the adsorption holes in the middle is less than the density of the adsorption holes on both sides, so that the amount of polymer material adsorbed in the middle of the mold wheel is less than the amount of polymer material adsorbed on both sides, and a longitudinal guide groove is formed on the top of the absorbent core.

10. The process for producing a pant-type sanitary napkin capable of preventing side leakage and back leakage according to claim 9, characterized in that: The guide groove can extend into the rear leakage prevention pocket.

Images