A breathable pull-up trousers, its processing device and processing method

By setting through grooves in the base layer of the enclosure and filling them with water-absorbing and expanding particles, and combining them with the surface layer to form breathable channels, the problems of breathability and side leakage prevention of absorbent sanitary products when large amounts of urine flow out are solved, achieving higher breathability and leakage prevention effects, and improving user comfort and production efficiency.

CN116602821BActive Publication Date: 2026-01-30FUJIAN XINRUN HYGIENE PRODUCTS CO LTD
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Patent Information

Application Number
CN202310611913.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-26
Publication Date
2026-01-30
Estimated Expiration
2043-05-26

AI Technical Summary

Technical Problem

Existing absorbent hygiene products have limited absorption speed of the absorbent core when a large amount of urine flows out in a short period of time. This results in side leakage from both sides because the liquid cannot be absorbed in time. At the same time, the protective cover reduces the breathability of the core area, causing odor and bacterial accumulation, which affects the comfort of use.

Method used

A through-groove is set on the base layer of the enclosure and filled with water-absorbing and expanding particles. Combined with the surface layer, it forms a breathable channel. The water-absorbing and expanding particles block the through-groove when urine overflows to prevent leakage. At the same time, a silicone strip is set on the bottom layer to improve breathability and comfort.

Benefits of technology

It improves the breathability and leak-proof effect of the protected area, enhances dryness during use, avoids skin diseases, and improves production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the technical field of hygiene products, and in particular to a breathable pull-up trousers and its processing apparatus and method. The processing apparatus includes a core output assembly, a guard output assembly, and a core-guard composite assembly. The guard output assembly includes a base layer unwinding mechanism, a groove pressing device, an adhesive application device, a granulation filling device, and a surface layer composite device, all connected in sequence. The groove pressing device first presses multiple parallel through-grooves into the base layer roll material. Then, the adhesive application device applies adhesive to the base layer surface and the through-grooves. Water-absorbing and expanding granules are filled into the through-grooves by the granulation filling device and adhere to the adhesive. Finally, the surface layer composite device laminates the surface layer onto the base layer. This application, through minor equipment improvements, incorporates breathable channels with water-absorbing and expanding granules within the guard to enhance the breathability of the core within the guarded area. While improving breathability, it also ensures the guard's leak-proof function, resulting in pull-up trousers with better breathability.
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Description

Technical Field

[0001] This application relates to the technical field of hygiene products, and in particular to a breathable pull-up trousers and its processing apparatus and processing method. Background Technology

[0002] Existing absorbent hygiene products have limited absorption speed in the absorbent core when a large amount of urine flows out in a short period of time. This can lead to areas of the diaper becoming saturated with liquid, making it difficult to absorb the liquid on the top surface, resulting in side leakage. To alleviate this, side guards are usually installed on both sides of the core as a leak-proof structure. While these guards function as a barrier, they also reduce the breathability of the core area, causing odors and bacteria to accumulate and potentially leading to skin discomfort and other health problems. Summary of the Invention

[0003] To improve the breathability of the core area inside the protective cuff of pull-up trousers, this application provides a breathable pull-up trouser, its processing device, and processing method, adopting the following technical solution:

[0004] A breathable pull-up diaper includes a core, a bottom layer, and two side panels. The core is adhered to the bottom layer, and the two side panels are respectively adhered to both sides of the core. Each side panel includes a base layer, and the top surface of the base layer has a through groove perpendicular to the length direction of the core. The through groove contains water-absorbing and expanding particles, and the top surface of the base layer is covered with a top layer.

[0005] By adopting the above technical solution, multiple parallel through grooves are first made on the base layer, and then water-absorbing and expanding particles are filled into the through grooves. The surface layer is then laminated onto the base layer. Under normal conditions, the through grooves act as ventilation channels to improve the air permeability of the enclosure area. When urine overflows, the water-absorbing and expanding particles in the through grooves expand upon contact with the liquid and gradually block the ventilation channels from the inside out to prevent leakage.

[0006] A processing apparatus for producing the aforementioned breathable pull-up trousers includes a core output assembly, a guard output assembly, and a core-guard composite assembly. The output ends of the core output assembly and the guard output assembly are respectively connected to the input end of the core-guard composite assembly. The core-guard composite assembly is used to laminate the guard onto the core. The guard output assembly includes a base layer unwinding mechanism, a grooving device, a gluing device, a granulation device, and a surface layer composite device, which are sequentially connected. The grooving device includes a pair of grooving rollers, one of which has a plurality of roller-pressing protrusions on its circumferential surface. The gluing device includes a first gluing device, with a gluing roller below the gluing part of the first gluing device, and gluing brush bristles on its circumferential surface. The granulation device includes a filling device containing water-absorbing and expanding granules. The hopper has several discharge ports below it, and the spacing between adjacent discharge ports is the same as the spacing between adjacent roller pressing rings. The surface layer composite device includes a surface layer unwinding mechanism and a composite roller group. The composite roller group is used to composite the surface layer received from the surface layer unwinding mechanism with the base layer after passing through the granulation device to form a continuous sheet-shaped protective enclosure. The core enclosure composite assembly includes a negative pressure roller, and a cutting device is provided above the negative pressure roller. The negative pressure roller is used to send the sheet-shaped protective enclosure to the cutter of the cutting device to be cut into strip-shaped protective enclosures. A glue-applying roller is provided on one side of the negative pressure roller. The core output assembly is connected from below the negative pressure roller. When the core passes under the negative pressure roller, the strip-shaped protective enclosure on the negative pressure roller is transferred to the core after being glued by the glue-applying roller.

[0007] By adopting the above technical solution, the processing device for this breathable pull-up trousers integrates the production process of the protective barrier with the main production process of the pull-up trousers through the setting of a base layer unwinding mechanism, a grooving device, an adhesive application device, a granulation device, and a surface layer lamination device. This forms a fully automated pull-up trousers production line, enabling accurate and rapid lamination of the breathable protective barrier in automated production, greatly improving production efficiency and simplifying production. Through minor equipment improvements, while ensuring the protective barrier's anti-leakage function, the produced protective barrier has better breathability, improving the breathability of the pull-up trousers' absorbent core area, enhancing dryness during use, and preventing skin diseases. Specifically, through improvements to the main line of pull-up trousers and the development of the production process for the protective cuffs, a protective cuff output assembly is set up in the production of pull-up trousers. The grooving device of the protective cuff output assembly first presses out multiple parallel through grooves on the base roll material. Then, the adhesive application device applies adhesive to the surface of the base material and inside the through grooves. Water-absorbing and expanding particles are filled into the through grooves by the filling device and adhere to the adhesive. Then, the surface layer is laminated onto the base material by the surface layer laminating device. The surface layer is bonded to the adhesive on the base material outside the through grooves.

[0008] Optionally, the composite roller assembly is provided with a blowing device on its side, and the roller pressing ring is provided with a convex ball portion.

[0009] By adopting the above technical solution, although most of the adhesive in the through-groove is covered by water-absorbing and expanding particles, some may still cause the surface layer to stick into the through-groove. The air blowing device delivers air into the through-groove immediately after the surface layer and base layer are bonded together, before the adhesive has fully cured. This causes the surface layer in the through-groove to bulge in time, preventing it from sticking and clogging the through-groove, thus improving air permeability. The degree of bulging is controlled by adjusting the airflow according to the actual situation. Furthermore, to further improve air permeability without increasing the size of the through-groove, the convex ball of the roller pressing ring is used to press grooves into the through-groove. Some of the water-absorbing and expanding particles fill these grooves, allowing more air to pass through the through-groove.

[0010] Optionally, it includes a first guardrail covering unit and a second guardrail covering unit. The first guardrail covering unit and the second guardrail covering unit are each composed of a guardrail output assembly and a core guard composite assembly. The first guardrail covering unit is used to cover the guardrail on the left side of the core, and the second guardrail covering unit is used to cover the guardrail on the right side of the core.

[0011] By adopting the above technical solution, compared with the simultaneous bonding of two guardrails, the method of bonding the first guardrail bonding unit and the second guardrail bonding unit to the left and right guardrails of the core body respectively reduces the difficulty of guardrail bonding and positioning, enabling the equipment to control the guardrail bonding position more accurately when running at high speed, thereby improving equipment operating efficiency and output quality.

[0012] Optionally, the core output assembly is connected to a core-bottom composite assembly at its output end, and a bottom layer output assembly is connected to the input end of the core-bottom composite assembly. The core-bottom composite assembly is used to feed the core and bottom layer into the core-encircling composite assembly after they are composited. The bottom layer output assembly includes a bottom layer unwinding mechanism, a silicone tape unwinding mechanism, a silicone tape bonding device, an elastic band unwinding mechanism, and an elastic band bonding device. The elastic band bonding device is used to press the elastic band led out from the elastic band unwinding mechanism onto the bottom layer led out from the bottom layer unwinding mechanism. The silicone tape bonding device is used to bond the silicone tape led out from the silicone tape unwinding mechanism to the vicinity of the elastic band of the bottom layer.

[0013] By employing the above technical solution, the silicone tape bonding device adheres the silicone tape to the vicinity of the bottom elastic band. When the rubber shrinks, it is easier to leave breathable holes between the silicone tape and the waistband fabric, improving the breathability of the waistband. At the same time, the arching of the silicone tape provides some support to the waistband fabric, making the pleats of the waistband fabric more even and less prone to dense knots under the support and guidance of the silicone tape, thus improving wearing comfort.

[0014] Optionally, the silicone tape bonding device includes a first spaced adhesive application mechanism and a silicone tape composite roller. The first spaced adhesive application mechanism is used to apply adhesive to the substrate at intervals to form spaced adhesive dots, and the silicone tape composite roller is used to press the silicone tape onto the substrate along the spaced adhesive dots.

[0015] By adopting the above technical solution, the intermittent adhesive application of the first intermittent adhesive mechanism avoids complete adhesion between the silicone strip and the bottom layer, so that the arching of the silicone strip is generated between the intermittent adhesive points, thereby controlling the uniformity of the arching of the silicone strip and the comfort of the waistband after wearing.

[0016] Optionally, the first interval gluing mechanism includes a glue storage cylinder, a push rod inside the glue storage cylinder, a glue pushing plate at the lower part of the push rod, and ear plates on both sides of the upper part of the push rod. The ear plates are connected to the return spring provided on the outer wall of the glue storage cylinder. A cam abuts against the top of the push rod. The cam is connected to a motor output shaft. A glue inlet pipe is provided at the upper part of the glue storage cylinder, and a glue outlet is provided at the bottom of the glue storage cylinder. A glue outlet baffle is provided on the glue outlet. The glue outlet baffle includes a left page plate and a right page plate that are respectively hinged to the inner wall of the glue storage cylinder. A synchronous rope is connected to the upper side of the left page plate and the right page plate, and the other end of the synchronous rope is connected to the glue pushing plate.

[0017] By adopting the above technical solution, the push rod moves up and down reciprocally under the drive of the cam, intermittently pressing the adhesive out of the glue reservoir, so that the adhesive falls onto the bottom layer to form intermittent glue dots.

[0018] Optionally, a punching device is provided between the silicone tape unwinding mechanism and the silicone tape bonding device. The punching device is used to roll-cut the silicone tape led out by the silicone tape unwinding mechanism to form bonding holes. The distance between adjacent bonding holes is the same as the interval gluing distance of the first interval gluing mechanism. The elastic band bonding device is connected to the output end of the silicone tape bonding device.

[0019] By adopting the above technical solution, the silicone tape near the bonding hole is pressed onto the spacer adhesive points and bonded to the bottom layer, making the silicone tape near the bonding hole easier to bend, enhancing the flexibility of the waistband after the silicone tape is composited, and improving wearing comfort.

[0020] Optionally, a shaping device and a second interval gluing mechanism are provided between the elastic band bonding device and the silicone tape bonding device. The shaping device includes hot press rollers, and the roller surface of one of the hot press rollers is provided with a corrugated convex surface.

[0021] By adopting the above technical solution, the wavy convex surface bends the silicone strip between the two spacer points, making the silicone strip between the two spacer points have a certain curvature and easier to bend, controlling the uniformity of the silicone strip arch and improving wearing comfort.

[0022] Optionally, a flipping roller group is provided between the input end of the core bottom composite assembly and the bottom output assembly. The flipping roller group includes a first guide roller and a second guide roller. The bottom layer passes around the outside of the first guide roller and the second guide roller and then enters the input end of the core bottom composite assembly.

[0023] By adopting the above technical solution, the silicone strip has a certain downward curvature under the action of the hot pressing rollers. When the elastic band shrinks, the silicone strip arches outward. At this time, the bottom layer after the composite elastic band is flipped by the flipping roller group, and the elastic band becomes the back side of the bottom composite core. After the silicone strip arches, it will press against the bottom fabric to achieve the functions of support and wrinkle guidance.

[0024] A method for manufacturing breathable pull-up diapers includes the following steps:

[0025] Step 1: Make the core of the pull-up pants with liquid absorption function;

[0026] Step 2: Make the breathable and waterproof bottom material of the pull-up pants and attach the waist elastic band to the bottom material;

[0027] Step 3: Composite the core with the underlying material;

[0028] Step 4: Using the above-mentioned protective enclosure assembly, a pull-up trouser protective enclosure with a through groove for ventilation is made, and water-absorbing and expanding particles are implanted in the through groove.

[0029] Step 5: Attach the protective cover to both sides of the core to prevent side leakage;

[0030] Step 6: Fold the diaper lengthwise to form the front and back pieces of the pull-up diaper;

[0031] Step 7: Weld, cut, and fold ears on the front and back pieces of the pull-up diaper to form the pull-up diaper.

[0032] By adopting the above technical solution, the production process of the high-breathability protective cover is combined with the production process of the pull-up pants main line, forming a new production method for breathable pull-up pants. This method can accurately and quickly composite the breathable protective cover during production, greatly improving the breathability and production efficiency of the pull-up pants, and simplifying the production process.

[0033] In summary, this application includes at least one of the following beneficial technical effects: Through minor equipment improvements, this application enhances the breathability of the core within the enclosure by incorporating breathable perforated grooves within the enclosure area. When urine flow does not reach the enclosure or is absorbed by the core and re-dried, gas flows through the perforated grooves. When urine overflows, the water-absorbing and expanding particles within the grooves expand upon contact with liquid, gradually blocking the grooves from the inside out to prevent leakage. This improves breathability while ensuring the enclosure's leak-proof function. The resulting pull-up diapers have better breathability, especially in the core area of ​​the enclosure, enhancing dryness and preventing skin conditions. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of this application.

[0035] Figure 2 This is a schematic diagram of the first interval gluing mechanism of this application.

[0036] Figure 3 This is a schematic diagram of the finalization device structure of this application.

[0037] Figure 4 This is a schematic diagram of the groove pressing device of this application.

[0038] Figure 5 This is a schematic diagram of the enclosure structure of this application.

[0039] Figure 6 This is a schematic diagram of the waist structure of this application. Figure 1 .

[0040] Figure 7 This is a schematic diagram of the waist structure of this application. Figure 2 .

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Core output assembly;

[0043] 2. Low-level output assembly;

[0044] 21. Bottom layer unwinding mechanism; 22. Silicone tape unwinding mechanism; 23. Punching device; 24. Silicone tape bonding device; 241. First interval gluing mechanism; 242. Glue storage cylinder; 243. Push rod; 244. Glue pushing plate; 245. Ear plate; 246. Return spring; 247. Cam; 248. Glue inlet tube; 249. Glue outlet; 250. Left page plate; 251. Right page plate; 252. Synchronous rope; 253. Silicone tape composite roller; 26. Shaping device; 261. Hot press rollers; 262. Corrugated convex surface; 27. Elastic band unwinding mechanism; 28. Elastic band bonding device; 29. ​​Turning roller group; 291. First guide roller; 292. Second guide roller;

[0045] 3. Core-base composite assembly;

[0046] 4. Protective enclosure output assembly;

[0047] 41. Base layer unwinding mechanism; 42. Grooving device; 421. Grooving rollers; 422. Roller pressing ring; 423. Convex ball; 43. Gluing device; 44. Granulation device; 45. Surface layer laminating device; 451. Surface layer unwinding mechanism; 452. Composite roller group; 453. Air blowing device;

[0048] 5. Core-wall composite assembly; 51. Negative pressure roller; 52. Cutting device; 53. Adhesive-coating roller;

[0049] 6. First protective enclosure covering unit; 7. Second protective enclosure covering unit;

[0050] 100. Core; 200. Bottom layer; 201. Elastic band; 202. Silicone tape; 203. Adhesive hole; 300. Protective enclosure; 301. Base layer; 302. Top layer; 303. Through groove; 304. Water-absorbing and expanding particles. Detailed Implementation

[0051] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0052] Reference Figure 5 A breathable pull-up trouser includes a core 100, a bottom layer 200, and two side panels 300. The core 100 is bonded to the bottom layer 200, and the two side panels 300 are bonded to both sides of the core 100. Each side panel 300 includes a base layer 301. The top surface of the base layer 301 is provided with a through groove 303 perpendicular to the length direction of the core 100. Water-absorbing and expanding particles 304 are provided in the through groove 303. The top surface of the base layer is covered with a top layer 302.

[0053] Reference Figure 1 This application discloses a processing apparatus for breathable pull-up trousers, including a core output assembly 1, a bottom layer output assembly 2, a flipping roller group 29, a core-bottom composite assembly 3, a first guardrail applicator 6, and a second guardrail applicator 7. Both the first and second guardrail applicator 6 and 7 are composed of a guardrail output assembly 4 and a core-bottom composite assembly 5, respectively. The first guardrail applicator 6 is used to applicate the guardrail 300 on the left side of the core 100, and the second guardrail applicator 7 is used to applicate the guardrail 300 on the right side of the core 100. Following the second guardrail applicator 7 are a finished product slitting assembly, a folding assembly, and a packaging assembly.

[0054] The core output assembly 1 is connected to the core bottom composite assembly 3 at its output end. The core bottom composite assembly 3 is also connected to the bottom layer output assembly 2 at its input end. The core bottom composite assembly 3 is used to composite the core 100 with the bottom layer 200 and then send it to the core surround composite assembly 5. The core surround composite assembly 5 is used to composite the protective enclosure 300 on both sides of the core 100 on the bottom layer 200.

[0055] The bottom layer output assembly 2 includes a bottom layer unwinding mechanism 21, a silicone tape unwinding mechanism 22, a punching device 23, a silicone tape bonding device 24, a shaping device 26, a second interval gluing mechanism, an elastic band unwinding mechanism 27, and an elastic band bonding device 28. The punching device 23 is used to punch holes in the silicone tape 202 led out by the silicone tape unwinding mechanism 22 to form bonding holes 203. The distance between adjacent bonding holes 203 is the same as the interval gluing distance of the first interval gluing mechanism 241. The elastic band bonding device 28 is connected to the output end of the silicone tape bonding device 24.

[0056] The silicone tape bonding device 24 is used to bond the silicone tape 202, which is led out from the silicone tape unwinding mechanism 22, to the bottom layer 200. The elastic band bonding device 28 is used to press and bond the elastic band 201, which is led out from the elastic band unwinding mechanism 27, to the silicone tape 202 on the bottom layer 200. The silicone tape bonding device 24 includes a first spacer gluing mechanism 241 and a silicone tape composite roller 253. The first spacer gluing mechanism 241 is used to apply glue at intervals on the bottom layer 200 to form spacer glue dots. The silicone tape composite roller 253 is used to press and bond the silicone tape 202 to the bottom layer 200 along the spacer glue dots.

[0057] Reference Figure 2 The first interval gluing mechanism 241 includes a glue storage cylinder 242, a push rod 243 inside the glue storage cylinder 242, a push plate 244 at the lower part of the push rod 243, and ear plates 245 on both sides of the upper part of the push rod 243. The ear plates 245 are connected to a return spring 246 on the outer wall of the glue storage cylinder 242. A cam 247 is abutted against the top of the push rod 243. The cam 247 is connected to a motor output shaft. A glue inlet pipe 248 is provided at the upper part of the glue storage cylinder 242. A glue outlet 249 is provided at the bottom of the glue storage cylinder 242. A glue outlet baffle is provided on the glue outlet 249. The glue outlet baffle includes a left page plate 250 and a right page plate 251 that are respectively hinged to the inner wall of the glue storage cylinder 242. A synchronous rope 252 is connected to the upper side of the left page plate 250 and the right page plate 251. The other end of the synchronous rope 252 is connected to the push plate 244.

[0058] Reference Figure 3 A shaping device 26 and a second interval gluing mechanism are provided between the elastic band bonding device 28 and the silicone tape bonding device 24. The shaping device 26 includes hot-press rollers 261, and one of the hot-press rollers 261 has a corrugated convex surface 262 on its roller surface. The flipping roller group 29 includes a first guide roller 291 and a second guide roller 292. The bottom layer 200 passes around the outside of the first guide roller 291 and the second guide roller 292 and then enters the input end of the core bottom composite assembly 3.

[0059] Reference Figure 1 and 4The protective enclosure output assembly 4 includes a base layer unwinding mechanism 41, a grooving device 42, an adhesive application device 43, a granulation device 44, and a surface layer composite device 45, which are connected in sequence. The grooving device 42 includes grooving rollers 421. A plurality of roller pressing protrusions 422 are provided on the circumference of one of the grooving rollers 421. The roller pressing protrusions 422 are provided with protruding ball portions 423. The grooving rollers 421 use a hot pressing and shaping process to press through grooves 303 into the base layer 301. The gluing device 43 includes a first gluing device, with a coating roller below the gluing part of the first gluing device, and gluing brush bristles on the circumference of the coating roller; the granulation device 44 includes a hopper containing water-absorbing and expanding granules 304, with several discharge ports below the hopper, the spacing between adjacent discharge ports being the same as the spacing between adjacent roller pressing rings 422; the surface layer laminating device 45 includes a surface layer unwinding mechanism 451 and a laminating roller group 452, the laminating roller group 452 being used to laminating the surface layer 302 received from the surface layer unwinding mechanism 451 with the base layer 301 after passing through the granulation device 44 to form a continuous sheet-shaped protective enclosure 300. A blowing device 453 is provided on the side of the laminating roller group 452. The core-coating composite assembly 5 includes a negative pressure roller 51, and a cutting device 52 is provided above the negative pressure roller 51. The negative pressure roller 51 is used to send the sheet-shaped protective wall 300 to the cutter of the cutting device 52 and cut it into strip-shaped protective walls 300. A glue-applying roller 53 is provided on one side of the negative pressure roller 51. The core output assembly 1 is connected from below the negative pressure roller 51. When the core 100 passes under the negative pressure roller 51, the strip-shaped protective wall 300 on the negative pressure roller 51 is transferred to the core 100 after being glued by the glue-applying roller 53.

[0060] A method for manufacturing breathable pull-up diapers includes the following steps:

[0061] Step 1: Output the prepared pull-up trouser core 100 with liquid absorption function through the core output assembly 1.

[0062] Step 2: Output the prepared breathable and waterproof pull-up trouser bottom layer 200 material through the bottom layer output assembly 2.

[0063] Step 3: Use the punching device 23 to punch holes in the prepared silicone tape 202 to form bonding holes 203.

[0064] Step 4: The bottom layer 200 material is introduced into the silicone tape bonding device 24 to bond the silicone tape 202 on the bottom layer 200. The bonding is performed by the first interval gluing mechanism 241 with the bonding hole 203 as the point of bonding.

[0065] Step 5: Use the shaping device 26 to squeeze and shape the silicone tape 202 bonded to the bottom layer 200, so that the silicone tape 202 between the two bonding holes 203 has a certain curvature.

[0066] Step 6: The waist elastic band 201 is bonded to the bottom layer 200 inside the bonding hole 203 by means of the elastic band bonding device 28.

[0067] Step 7: Using the flipping roller assembly 29, the side of the bottom layer 200 with the waist elastic band 201 bonded to it is turned downwards, and the core 100 is laminated with the top-side material of the bottom layer 200. The structure of the waist elastic band 201 under this process is as follows: Figure 6-7 As shown.

[0068] Step 8, refer to Figure 5 The pull-up trousers guard 300 with through-grooves 303 is made using the guard output assembly 4, and water-absorbing and expanding particles 304 are implanted in the through-grooves 303. Specifically, multiple parallel through-grooves are first pressed into the base layer 301 roll material by the grooving device 42, then adhesive is applied to the surface of the base layer 301 and the through-grooves by the gluing device 43, and the water-absorbing and expanding particles 304 are filled into the through-grooves by the filling device 44 and adhered to the adhesive. Then, the surface layer 302 is laminated onto the base layer 301 by the surface layer laminating device 45, and the surface layer 302 is bonded to the adhesive on the base layer 301 outside the through-grooves.

[0069] Step 9: The fabricated protective enclosure 300 is adhered to both sides of the core 100 via the core-enclosure composite assembly 5 to prevent side leakage. Under normal conditions, the through-groove 303 improves the air permeability of the enclosure area. When urine overflows, the water-absorbing and expanding particles 304 in the through-groove expand upon contact with liquid and gradually block the through-groove 303 from the inside out to prevent leakage.

[0070] Step 10: Fold the pants lengthwise to form the front and back pieces.

[0071] Step 11: Weld, cut, and fold ears on the front and back pieces of the pull-up diaper to form the pull-up diaper.

[0072] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A processing apparatus for producing a breathable type pull-on diaper, characterized by: The application relates to a core-surround composite assembly (5) which comprises a core output assembly (1), a surround output assembly (4) and the core-surround composite assembly (5), the output end of the core output assembly (1) and the output end of the surround output assembly (4) are respectively connected to the input end of the core-surround composite assembly (5), and the core-surround composite assembly (5) is used for compositing a surround (300) on a core (100); the surround output assembly (4) comprises a base layer unwinding mechanism (41), a groove pressing device (42), a gluing device (43), a particle filling device (44) and a surface layer composite device (45) which are sequentially connected, the groove pressing device (42) comprises groove pressing rollers (421), and the circumferential surface of one of the groove pressing rollers is provided with a plurality of roller pressing convex rings (422); the gluing device (43) comprises a first glue outlet device, a glue coating roller is arranged below the glue outlet part of the first glue outlet device, and the circumferential surface of the glue coating roller is provided with glue applying bristles; the particle filling device (44) comprises a hopper which is filled with water-absorbing and swelling particles (304), a plurality of discharge ports are arranged below the hopper, the spacing between adjacent discharge ports is the same as the spacing between adjacent roller pressing convex rings (422); the surface layer composite device (45) comprises a surface layer unwinding mechanism (451) and a composite roller group (452), the composite roller group (452) is used for compositing a surface layer (302) which is connected from the surface layer unwinding mechanism (451) with a base layer (301) which passes through the particle filling device (44) to form a continuous sheet-shaped surround (300); the core-surround composite assembly (5) comprises a negative pressure roller (51), a cutting device (52) is arranged above the negative pressure roller (51), the negative pressure roller (51) is used for sending the sheet-shaped surround (300) to below the cutter of the cutting device (52) to cut into a strip-shaped surround (300), a glue coating roller (53) is arranged on one side of the negative pressure roller (51), the core output assembly (1) is connected below the negative pressure roller (51), and when the core (100) passes below the negative pressure roller (51), the strip-shaped surround (300) on the negative pressure roller (51) is transferred to the core (100) after being coated on the glue coating roller (53).

2. The apparatus for processing a breathable pull-on diaper according to claim 1, wherein: A blowing device (453) is arranged on the side of the composite roller group (452), and convex ball parts (423) are arranged on the roller pressing convex rings (422).

3. The apparatus for processing a breathable pull-on diaper according to claim 1, wherein: The application further relates to a first surround pasting unit (6) and a second surround pasting unit (7), the first surround pasting unit (6) and the second surround pasting unit (7) are respectively composed of one surround output assembly (4) and one core-surround composite assembly (5), the first surround pasting unit (6) is used for pasting a surround (300) on the left side of a core (100), and the second surround pasting unit (7) is used for pasting a surround (300) on the right side of the core (100).

4. The apparatus for processing a breathable pull-on diaper according to claim 1, wherein: The core output assembly (1) is provided with a core bottom composite assembly (3) at the output end, the input end of the core bottom composite assembly (3) is further provided with a bottom layer output assembly (2), the core bottom composite assembly (3) is used for compositing the core (100) and the bottom layer (200) and then sending into the core surrounding composite assembly (5); the bottom layer output assembly (2) comprises a bottom layer unwinding mechanism (21), a silica gel tape unwinding mechanism (22), a silica gel tape adhering device (24), an elastic band unwinding mechanism (27) and an elastic band adhering device (28), the elastic band adhering device (28) is used for adhering the elastic band (201) led out from the elastic band unwinding mechanism (27) on the bottom layer (200) led out from the bottom layer unwinding mechanism (21), and the silica gel tape adhering device (24) is used for adhering the silica gel tape (202) led out from the silica gel tape unwinding mechanism (22) near the elastic band (201) of the bottom layer (200).

5. The apparatus for processing a breathable pull-on diaper according to claim 4, wherein: The silica gel tape adhering device (24) comprises a first interval glue applying mechanism (241) and a silica gel tape composite roller (253), the first interval glue applying mechanism (241) is used for applying glue on the bottom layer (200) to form interval glue points, and the silica gel tape composite roller (253) is used for adhering the silica gel tape (202) on the bottom layer (200) along the interval glue points.

6. The apparatus for processing a breathable pull-on diaper according to claim 5, wherein: The first interval glue applying mechanism (241) comprises a glue storage cylinder (242), a push rod (243) is arranged in the glue storage cylinder (242), a push glue plate (244) is arranged at the lower portion of the push rod (243), ear plates (245) are arranged at the upper portion of the push rod (243) and on both sides thereof, the ear plates (245) are connected with reset springs (246) arranged on the outer wall of the glue storage cylinder (242), a cam (247) is abutted against the top of the push rod (243), the cam (247) is connected with a motor output shaft, a glue inlet pipe (248) is arranged at the upper portion of the glue storage cylinder (242), a glue outlet (249) is arranged at the bottom of the glue storage cylinder (242), a glue outlet baffle is arranged on the glue outlet (249), the glue outlet baffle comprises a left page plate (250) and a right page plate (251) which are respectively hinged to the inner wall of the glue storage cylinder (242), a synchronous rope (252) is connected with the upper side of the left page plate (250) and the right page plate (251), and the other end of the synchronous rope (252) is connected with the push glue plate (244).

7. The apparatus for processing a breathable pull-on diaper according to claim 6, wherein: The perforating device (23) is arranged between the silicon rubber tape unwinding mechanism (22) and the silicon rubber tape bonding device (24), and is used for punching the silicon rubber tape (202) led out by the silicon rubber tape unwinding mechanism (22) to form bonding holes (203), the distance between adjacent bonding holes (203) is the same as the interval gluing distance of the first interval gluing mechanism (241), and the rubber band bonding device (28) is arranged at the output end of the silicon rubber tape bonding device (24); the rubber band bonding device (28) and the silicon rubber tape bonding device (24) are provided with a shaping device (26) and a second interval gluing mechanism, the shaping device (26) comprises a hot-pressing pair of rollers (261), and the roller surface of one of the hot-pressing pair of rollers (261) is provided with a wave convex surface (262).

8. The apparatus for processing a breathable pull-on diaper according to claim 7, wherein: The core bottom composite assembly (3) input end and the bottom layer output assembly (2) are further provided with a turning roller group (29), the turning roller group (29) comprises a first guide roller (291) and a second guide roller (292), and the bottom layer (200) is connected to the input end of the core bottom composite assembly (3) after winding outside the first guide roller (291) and the second guide roller (292).

9. A method of manufacturing a breathable pull-on diaper, characterized by, The method comprises the following steps: Step 1, making a pull-up diaper core (100) with liquid absorption function; Step 2, making a breathable and waterproof pull-up diaper bottom layer (200) material, and bonding a waist rubber band (201) on the bottom layer (200); Step 3, compounding the core (100) and the bottom layer (200) material; Step 4, using the containment output assembly (4) of claim 1 to make a pull-up diaper containment (300) with a through groove (303) for ventilation, and implanting water-absorbing and expanding particles (304) in the through groove (303); Step 5, bonding the containment (300) on both sides of the core (100) to prevent side leakage; Step 6, longitudinal folding to form the front and back pieces of the pull-up diaper; Step 7, welding, cutting and ear folding of the front and back pieces of the pull-up diaper to form the pull-up diaper.

Citation Information

Patent Citations

  • Full elasticity separates limit sanitary towel

    CN208552264U