Method of making a pantiliner

Abstract

The present application provides a preparation method of a pant-type sanitary napkin, comprising the following steps: laying a back sheet and covering a top sheet on the back sheet along the MD direction, and combining the top sheet and the back sheet to form a combination at predetermined positions, wherein the predetermined positions include outer side regions located on both sides of the back sheet, and inner side regions located between the pair of outer side regions, and adjacent inner side regions form a first region; cutting off a crotch sheet in the first region, and then cutting the combination along the MD direction to form a main body, wherein the main body comprises a waist region and a leg region, and adjacent main bodies face in opposite directions; opening the waist region, and forming a waist opening; inserting an absorbent body from the waist opening; and combining the absorbent body and the main body, which on the one hand does not need to additionally set a complex elastic rubber band, and can easily additionally set an elastic sheet or an elastic rubber band to increase comfort, and on the other hand can form pant legs of different lengths according to needs, and has high flexibility.

Description

Technical Field

[0001] This invention relates to a method for preparing a pant-type sanitary napkin. Background Technology

[0002] Common panty-style sanitary napkins, pull-up pants, and overnight pants are usually in the shape of briefs. They form a V-shape around the groin from the lower crotch to the armpit. This structure does not cover the thigh. With social development, in recent years, people have begun to prefer panty-style sanitary napkins with longer legs. These panty-style sanitary napkins have legs that cover the thigh, making it less likely for excrement to leak from the openings in the legs. At the same time, because they have a complete crotch and legs that cover the thigh, they do not cause chafing or constriction in the thigh area, thus providing better comfort than briefs.

[0003] However, its design, with its leg openings covering the upper thighs and a complete crotch area, increases the difficulty of its production and makes it impossible to directly adopt the existing production methods for triangle-shaped diapers.

[0004] To address the manufacturing process issues, several technologies have been developed. For example, patent document CN115835843A, concerning a disposable diaper in the shape of shorts and its manufacturing method, describes a diaper where the portion of the abdominal outer garment along the edge of the leg opening and the portion of the back outer garment along the edge of the leg opening are stretchable in the width direction, and the portion of the crotch outer garment along the edge of the leg opening is stretchable in the front-back direction. This requires the arrangement of complex elastic bands, complicating the manufacturing process, and also limits the length of the diaper legs. Summary of the Invention

[0005] Therefore, the present invention provides a method for preparing pant-type sanitary napkins to solve the above-mentioned technical problems.

[0006] A method for preparing a pant-type sanitary napkin includes the following steps:

[0007] S1: Lay the substrate along the MD direction and cover the top film on the substrate, and combine the top film and the substrate at a predetermined position to form a composite body. The predetermined position includes the outer side area located on both sides of the substrate and the inner side area located between a pair of outer side areas. The adjacent inner side areas form a first area.

[0008] S2: The crotch piece is cut off in the first area, and then the body is cut along the MD direction to form the main body. The main body includes the waist area and the leg area, and the adjacent bodies are oriented in opposite directions.

[0009] S3: Open up the waist area and form a waist opening;

[0010] S4: Insert the absorbent body through the waist opening;

[0011] S5: Combines the absorber with the host.

[0012] In step S1, the step of joining the top sheet and the bottom sheet at a predetermined position to form a composite body further includes: setting an adhesive layer at a predetermined position on the bottom sheet, then covering the top sheet on the bottom sheet, and joining the bottom sheet and the top sheet through the adhesive layer. The adhesive layer includes an outer adhesive layer sprayed on the outer side area and an inner adhesive layer sprayed on the inner side area. The bottom sheet and the top sheet are joined by the inner adhesive layer to form the crotch and leg area. The outer adhesive layer is strip-shaped and its extension direction is parallel to the MD direction.

[0013] The inner side region is U-shaped, and in step S1, adjacent inner side regions are arranged in a "mouth" shape.

[0014] The steps include, before opening the waist region in step S3, separating the cut body and rotating the body so that the waist opening faces the CD direction.

[0015] In step S3, the waist area is opened to form a waist opening by a waist opening opening device. The waist opening opening device includes an upper conveying device, a lower conveying device and a gap located between the upper conveying device and the lower conveying device, which are arranged at intervals in the vertical direction. The gap includes a beginning end and a end end, and the distance of the gap gradually increases from the beginning end to the end end. The upper conveying device also includes an upper conveyor belt and an upper adsorption box arranged inside the upper conveyor belt. The lower conveying device also includes a lower conveyor belt and a lower adsorption box arranged inside the lower conveyor belt.

[0016] In step S4, the absorber is inserted into the body through an insert plate. The insert plate includes an upper plate, a lower plate, and a cavity between the upper and lower plates. The upper and lower plates are provided with several through holes. The cavity is connected to a negative pressure device. The absorber is attached to the upper and lower plates on both sides, respectively.

[0017] The cavity is also connected to an air compressor, and in step S5, the cavity is under positive pressure to separate the absorber from the insert plate and attach it to the main body.

[0018] The steps include, before step S4, a step of fixing the body leg area by a clamping device or a pressing device, and after step S5, a step of releasing the body leg area by the clamping device or the pressing device.

[0019] The absorbent is also provided with an adhesive backing. In step S5, pressure is applied to the body to bond the body and the absorbent.

[0020] The waist area includes a front waist piece and a rear waist piece. After step S5, the step of setting an elastic piece on the front waist piece and / or the rear waist piece is also included.

[0021] Beneficial effects: This invention provides a method for preparing a pant-type sanitary napkin, comprising the following steps: laying a base sheet along the MD direction and covering the base sheet with a top sheet, and combining the top sheet and the base sheet at a predetermined position to form a composite body. The predetermined position includes an outer portion area located on both sides of the base sheet and an inner portion area located between a pair of outer portion areas, with adjacent inner portion areas forming a first area; cutting off the crotch piece in the first area, and then cutting the composite body along the MD direction to form a main body. The main body includes a waist area and a leg area, with adjacent main bodies facing opposite directions; opening the waist area to form a waist opening; inserting an absorbent body through the waist opening; and combining the absorbent body with the main body. This method eliminates the need for additional complex elastic bands and allows for easy addition of elastic sheets or elastic bands to increase comfort. Furthermore, this method allows for the formation of pant legs of different lengths as needed, offering high flexibility. Attached Figure Description

[0022] Figure 1 A schematic diagram showing the laying of the film and the application of adhesive on it;

[0023] Figure 2 A diagram showing the overlay of a top film onto a negative;

[0024] Figure 3 Schematic diagram of the excision of the septum;

[0025] Figure 4 Diagram showing the cutout of the pant legs and waistband;

[0026] Figure 5 Schematic diagram of the separated body;

[0027] Figure 6 Schematic diagram of the body rotation;

[0028] Figure 7 A diagram illustrating the waist opening formed by opening the front and rear waist panels;

[0029] Figure 8 Schematic diagram of the inserted absorber;

[0030] Figures 9-10 Schematic diagram of the absorption body combined with the host body;

[0031] Figure 11 Schematic diagram of attaching elastic sheet;

[0032] Figure 12 Schematic diagram of the plate adsorption absorber;

[0033] Figure 13 Diagram showing the opening of the waist.

[0034] Component descriptions in the diagram:

[0035] Body 10, 10a, 10b, 10c, 10d; Waist area 101, 101b, 101c; Front waist piece 1011; Rear waist piece 1012; Waist opening 1013; Leg area 102, 102b, 102c; Bottom piece 11; Outer side area 111; Inner side area 112; First area 113; Crotch piece 114; First dividing line 115; Second dividing line 116; Top piece 12; Absorbent body 13; Backing adhesive 131; Elastic sheet 14; Outer side adhesive layer 21; Inner side adhesive layer 22; Insert plate 30; Upper plate 31; Through hole 311; Lower plate 32; Cavity 33; Upper conveying device 41; Upper adsorption box 411; Lower conveying device 42; Lower adsorption box 421; Spacing 43. Detailed Implementation

[0036] Please refer to the reference. Figure 1-11 This invention provides a method for preparing a pant-shaped sanitary napkin, which will be further described below with reference to the accompanying drawings.

[0037] It should also be noted that the terms "upper," "lower," "inner," "outer," and "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] Please refer to this as well. Figure 1 ,exist Figure 1 The diagram also shows the MD direction and CD direction in the production line. The MD direction (Machine Direction) refers to the flow direction of the production line, and the CD direction (Crcss Machine Direction) refers to the direction perpendicular to the flow direction of the production line. Specifically, the direction indicated by the arrow in the diagram is the MD direction, and the direction perpendicular to the MD direction is the CD direction. The preparation method of this invention will be described in detail below.

[0039] S1: Lay the substrate 11 along the MD direction and cover the substrate 11 with the top film 12, and combine the top film 12 and the substrate 11 at a predetermined position to form a composite body. The predetermined position includes the outer side area 111 located on both sides of the substrate 11, and the inner side area 112 located between a pair of outer side areas 111. The adjacent inner side areas 112 form a first area 113.

[0040] Understandably, the bottom sheet 11 and top sheet 12 are used to form the back waist piece 1012 and front waist piece 1011 of the pant-type sanitary napkin. The outer side area 111 is adjacent to the outer edge of the bottom sheet 11 and the top sheet 12. The inner side area 112 is located at the center between a pair of outer side areas 111. The inner side area 112 is approximately U-shaped. For ease of description, the combination of the bottom sheet 11 and the top sheet 12 is referred to as the combination. Understandably, the top sheet 12 and the bottom sheet 11 of the combination are separated between a pair of outer side areas 111. At the same time, the corresponding outer side area 111 and the inner side area 112 are also separated. Along the MD direction, the adjacent inner side areas 112 form a first area 113 in the shape of an "U". After cutting, the adjacent outer side areas 111 and the inner side areas 112 form a pant leg. In the area without the inner side area 112, the opposite outer side areas 111 form a waistband.

[0041] In addition, the aforementioned bonding refers to the connection of materials to form a whole. Typically, this can be achieved through hot melting or adhesive bonding. Hot melting can be achieved by heating the material itself to its melting point, causing it to melt locally and solidify to form a bond. Alternatively, external energy such as ultrasound can be applied to the material to cause it to melt locally at high temperatures and solidify to form a bond. Adhesive bonding can be achieved by using an adhesive to connect adjacent materials under the action of the adhesive.

[0042] In this embodiment, the substrate 11 and the top sheet 12 are bonded together by an adhesive layer containing an adhesive. Specifically, the bonding of the top sheet 12 and the substrate 11 at a predetermined position to form a bond further includes: laying the substrate 11 along the MD direction, setting the adhesive layer at a predetermined position on the substrate 11, and then covering the top sheet 12 on the substrate 11 and bonding the substrate 11 and the top sheet 12 together by the adhesive layer.

[0043] It is understood that the adhesive layer includes an outer adhesive layer 21 sprayed on the outer side region 111 and an inner adhesive layer 22 sprayed on the inner side region 112. The bottom sheet 11 and the top sheet 12 are bonded together by the inner adhesive layer 22 to form the crotch and leg area. It is understood that the inner adhesive layer 22 is provided along the periphery of the first region 113 so that the bottom sheet 11 and the top sheet 12 inside the first region 113 are separated, thereby reducing the amount of adhesive used.

[0044] In this embodiment, the extension direction of the film 11 is the same as that of the MD direction. More specifically, the production line includes a support layer that moves downstream along the MD direction. The film 11 is laid on the support layer along its extension direction and moves with the movement of the support layer.

[0045] Understandably, in this laying method, the outer adhesive layer 21 can be sprayed continuously, and the extension state of the outer adhesive layer 21 is the same as the movement direction of the film 11, thereby improving the spraying efficiency and spraying accuracy of the outer adhesive layer 21. Similarly, the main extension direction of the inner adhesive layer 22 is also the same as the movement direction of the film 11. Only a small amount of adhesive needs to be sprayed in the CD direction to improve the accuracy of the adhesive layer on the crotch and inner leg sides.

[0046] In other embodiments, the substrate and the top film can also be joined in a predetermined area by ultrasonic welding.

[0047] Understandably, the bottom sheet 11 and top sheet 12 are used to form the front waist sheet 1011 and back waist sheet 1012 of the pant-type sanitary napkin. That is, both the bottom sheet 11 and top sheet 12 are configured to come into contact with the skin. Therefore, it is preferable to use sheet materials with low irritation and softness, such as gauze, cotton, spunlace nonwoven fabric, hot-air nonwoven fabric, etc., with a unit area weight of 10-60 g / m2. More preferably, it is hot-air nonwoven fabric made of thermoplastic synthetic fibers. As the synthetic fibers constituting the hot-air nonwoven fabric, polyethylene (PE) fiber, polypropylene (PP) fiber and other polyolefin fibers, polyester fibers, nylon and other polyamide fibers, etc. can be used. In some optional embodiments, natural fibers or viscose fibers can also be added at the same time to further reduce skin irritation. These natural fibers can include wood fibers, cotton fibers, etc.

[0048] In some other embodiments, the substrate 11 further includes a water-repellent layer disposed on the outer side of the substrate 11, so that the diaper is waterproof or water-repellent.

[0049] S2: The crotch piece 114 is cut out in the first region 113, and then the body is cut along the MD direction to form the body 10. The body 10 includes a waist region 101 and a leg region 102, and the adjacent bodies 10 are oriented in opposite directions.

[0050] Specifically, the opposite orientation of adjacent bodies 10 means that, for example, if the waist region 101b of the preceding body 10b is located on the right and the leg region 102b is located on the left in adjacent bodies (10b, 10c), then the waist region 101c of the following body 10c is located on the left and abuts against the waist region 101b of the preceding body 10b, and the leg region 102c is located on the right and abuts against the leg region of the following body 10d, so that the orientation of each adjacent body is opposite. Please refer to this further. Figure 4 , Figure 4The image shows four bodies (10a, 10b, 10c, 10d) arranged in sequence. In these four bodies (10a, 10b, 10c, 10d), the leg areas of adjacent bodies (10a, 10b) are in contact with each other, while the waist areas face away from each other. In the case of adjacent bodies (10b, 10c), the waist areas are in contact with each other, while the leg areas face away from each other. In the case of adjacent bodies (10c, 10d), the leg areas are in contact with each other, while the waist areas face away from each other.

[0051] When cutting the assembly, the leg area of ​​the adjacent body (10a, 10b) can be cut along a first cutting line 115, and the waist area of ​​the adjacent body (10b, 10c) can be cut along a second cutting line 116. The first cutting line 115 and the second cutting line 116 are arranged alternately, so that the assembly is cut into bodies facing opposite directions.

[0052] Understandably, the first slitting line 115 is the center line of the first region 113 along the CD direction. After slitting, the first region 113 is divided into two pieces of equal size. The second slitting line 116 is the center line of the adjacent first regions 113 along the CD direction.

[0053] S3: Open the waist area 1011 and form the waist opening 1013.

[0054] In this embodiment, before opening the waist region 1011, the steps of separating the cut body 10 and rotating the body 10 are also included.

[0055] Specifically, a first conveyor belt and a second conveyor belt located downstream of the first conveyor belt can be set up, with the speed of the first conveyor belt being less than that of the second conveyor belt. When the cut body 10 is transferred from the first conveyor belt to the second conveyor belt, the adjacent bodies 10 are separated because the speed of the second conveyor belt is greater than that of the first conveyor belt. Of course, other methods can also be used to separate adjacent bodies 10.

[0056] In this embodiment, the body 10 is configured to rotate 90° so that the formed waist opening 1013 is parallel to the MD direction.

[0057] Please refer to this as well. Figure 13 ,exist Figure 13The diagram shows a waist opening 1013 formed by opening the waist region 1011 through a waist opening opening device. The waist opening opening device includes an upper conveyor 41, a lower conveyor 42, and a gap 43 located between the upper conveyor 41 and the lower conveyor 42, all arranged vertically at a distance 43. The gap 43 includes a beginning and a end, and the distance of the gap 43 gradually increases from the beginning to the end. The upper conveyor 41 also includes an upper conveyor belt and an upper suction box 411 disposed inside the upper conveyor belt. The lower conveyor 42 also includes a lower conveyor belt... The belt and the lower adsorption box 421 set inside the lower conveyor belt, the main body 10 enters the waist opening device from the first end, under the adsorption of the lower adsorption box 421 and the upper adsorption box 411, its front waist piece 1011 and rear waist piece 1012 are attached to the lower conveyor belt and the upper conveyor belt respectively. When the lower conveyor belt and the upper conveyor belt move from the first end to the tail end, the front waist piece 1011 and the rear waist piece 1012 gradually open to form the waist opening 1013. It can be understood that the upper adsorption box 411 and the lower adsorption box 421 are respectively connected to the negative pressure device to form an adsorption effect.

[0058] In other embodiments, suction cups may be provided at the front waist piece 1011 and the rear waist piece 1012 respectively, and the suction cups can be used to open the front waist piece 1011 and the rear waist piece 1012 to form a waist opening 1013.

[0059] S4: Insert absorber 13 through waist opening 1013.

[0060] Please refer to this as well. Figure 12 ,exist Figure 12 The diagram shows the structure of the insert plate 30 for inserting the absorber 13. The insert plate 30 includes an upper plate 31, a lower plate 32, and a cavity 33 located between the upper plate 31 and the lower plate 32. The upper plate 31 and the lower plate 32 are provided with a plurality of through holes 311. The cavity 33 is connected to a negative pressure device for forming a negative pressure in the cavity 33. The absorber 13 is prepared separately, is generally long and folded in half. Understandably, the two sides of the absorber 13 are respectively attached to the upper plate 31 and the lower plate 32.

[0061] The insert plate 30 is configured to move along the CD direction toward the body 10 and be inserted into the body 10 through the waist opening 1013. Specifically, the insert plate 30 is connected to an actuating device that moves along the CD direction so that the insert plate 30 can move along the CD direction, thereby allowing the absorber 13 to enter the body 10 through the waist opening 1013.

[0062] Furthermore, in order to prevent the body 10 from undergoing unexpected activity when the absorber 13 enters the body 10, more specifically, to prevent the body 10 from moving along the CD direction when the absorber 13 enters the body 10, a step of fixing the legs or crotch of the body 10 is included before the absorber 13 is inserted from the waist opening 1013. More specifically, the legs or crotch of the body 10 can be pressed or clamped by a pressing device or clamping device.

[0063] S5: Combine absorber 13 with body 10.

[0064] In this embodiment, the absorbent body 13 is also provided with an adhesive backing 131. After the absorbent body 13 enters the body 10, it applies pressure to the front waist piece 1011 and the rear waist piece 1012 of the body 10, so that the front waist piece 1011 and the rear waist piece 1012 are combined with the absorbent body 13.

[0065] In this embodiment, the cavity 33 is also connected to an air compressor to create positive pressure within the cavity 33. That is, when positive pressure is created within the cavity 33, the airflow within the cavity 33 is discharged through the through hole 311. At this time, the airflow plays two roles: firstly, it allows the absorber 13 attached to the insert plate 30 to detach from the insert plate 30; secondly, it applies pressure from the inside to the absorber 13 and the body 10 through the airflow, thereby allowing the absorber 13 to combine with the body 10. In this way, it is not necessary to set up a clamping or pressing device on the outside of the body 10, and the absorber 13 can still be combined with the body 10. In addition, when the waist opening device in this embodiment is used to open the waist area, the lower conveyor belt and the upper conveyor belt located on the lower and upper sides of the body also serve as the support structure for the front waist piece and the rear waist piece when the airflow applies force to the absorber from the inside.

[0066] Understandably, after the absorbent 13 is combined with the body 10, the insert 30 is withdrawn from the waist opening 1013 to form a complete diaper.

[0067] At the same time, after combining the absorbent 13 with the body 10, an elastic sheet 14 can be provided on the front waist piece 1011 and / or the rear waist piece 1012. It is understood that the elastic sheet 14 is provided near the waist opening 1013 so that the waist opening 1013 has a contraction effect, thereby making it easier to fix the diaper on the user's waist.

[0068] In another embodiment, elastic bands or other elastic materials may be provided on the front waistband 1011 or the rear waistband 1012 to provide better comfort, which will not be elaborated here.

[0069] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for preparing a pant-shaped sanitary napkin, characterized in that, Includes the following steps: S1: Lay the bottom sheet along the MD direction and cover the top sheet on the bottom sheet, and combine the top sheet and the bottom sheet at a predetermined position to form a composite body. The predetermined position includes the outer side area located on both sides of the bottom sheet and the inner side area located between a pair of outer side areas. The adjacent inner side areas form a first area. The inner side area is U-shaped and the adjacent inner side areas form an "mouth" shape. The top sheet and the bottom sheet of the composite body are separated between a pair of outer side areas, and the corresponding outer side area and the inner side area are also separated. After cutting, the adjacent outer side area and the inner side area form a pant leg. In the area without an inner side area, the opposite outer side areas form a waistband. S2: The crotch piece is removed from the first area, and then the body is cut along the CD direction to form the main body. The main body includes a waist area and a leg area. The adjacent bodies are oriented in opposite directions. The opposite orientation of adjacent bodies means that when the waist area of ​​the previous body is located on the right and the leg area is located on the left, the waist area of ​​the next body is located on the left and abuts against the waist area of ​​the previous body, and the leg area is located on the right and abuts against the leg area of ​​the next body, so that the orientation of each adjacent body is opposite. When cutting the body, the leg area of ​​the adjacent body is cut along the first cutting line, and the waist area of ​​the adjacent body is cut along the second cutting line. The first cutting line and the second cutting line are set alternately, so that the body is cut into bodies with opposite orientations alternately. The first cutting line is the center line of the first area along the CD direction. After cutting, the first area is divided into two pieces of equal size. The second cutting line is the center line of the adjacent first area along the CD direction. S3: Open up the waist area and form a waist opening; S4: Insert the absorbent body through the waist opening; S5: Combines the absorber with the host.

2. The method for preparing the pant-shaped sanitary napkin as described in claim 1, characterized in that, In step S1, the step of joining the top sheet and the bottom sheet at a predetermined position to form a composite body further includes: setting an adhesive layer at a predetermined position on the bottom sheet, then covering the top sheet on the bottom sheet, and joining the bottom sheet and the top sheet through the adhesive layer. The adhesive layer includes an outer adhesive layer sprayed on the outer side area and an inner adhesive layer sprayed on the inner side area. The bottom sheet and the top sheet are joined by the inner adhesive layer to form the crotch and leg area. The outer adhesive layer is strip-shaped and its extension direction is parallel to the MD direction.

3. The method for preparing the pant-shaped sanitary napkin as described in claim 2, characterized in that, Before opening the waist region in step S3, the steps include separating the cut body and rotating the body so that the waist opening faces the CD direction.

4. The method for preparing the pant-shaped sanitary napkin as described in claim 3, characterized in that, In step S3, a waist opening is formed by opening the waist area using a waist opening opening device. The waist opening opening device includes an upper conveying device, a lower conveying device, and a gap between the upper and lower conveying devices arranged at intervals in the vertical direction. The gap includes a beginning end and a end end, and the distance of the gap gradually increases from the beginning end to the end end. The upper conveying device also includes an upper conveyor belt and an upper adsorption box arranged inside the upper conveyor belt. The lower conveying device also includes a lower conveyor belt and a lower adsorption box arranged inside the lower conveyor belt.

5. The method for preparing the pant-shaped sanitary napkin as described in claim 4, characterized in that, In step S4, the absorber is inserted into the body through an insert plate. The insert plate includes an upper plate, a lower plate, and a cavity between the upper plate and the lower plate. The upper plate and the lower plate are provided with several through holes. The cavity is connected to a negative pressure device. The absorber is attached to the upper plate and the lower plate on both sides, respectively.

6. The method for preparing the pant-shaped sanitary napkin as described in claim 5, characterized in that, The cavity is also connected to an air compressor, and in step S5, the cavity is under positive pressure to separate the absorber from the insert plate and attach it to the body.

7. The method for preparing the pant-shaped sanitary napkin as described in claim 6, characterized in that, Before step S4, the method includes a step of fixing the body leg area by a clamping device or a pressing device, and after step S5, the method includes a step of releasing the body leg area by the clamping device or the pressing device.

8. The method for preparing the pant-shaped sanitary napkin as described in claim 6, characterized in that, The absorbent is also provided with an adhesive backing. In step S5, pressure is applied to the body to bond the body and the absorbent.

9. The method for preparing the pant-shaped sanitary napkin as described in claim 6, characterized in that, The waist area includes a front waist piece and a rear waist piece. After step S5, the method further includes setting an elastic piece on the front waist piece and / or the rear waist piece.

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