Preparation method of dry-wet separation adult paper diaper

Abstract

The present application relates to the field of disposable sanitary products, and provides a preparation method of a dry-wet separation adult paper diaper, an upper liquid-permeable surface layer is transported, an opening is cut on the upper liquid-permeable surface layer through a first cutter roller device, the opening is located at the anus of a human body, the upper liquid-permeable surface layer and a lower liquid-permeable surface layer are compounded through a first composite roller device, a storage cavity which is not completely compounded is formed in the middle of the upper liquid-permeable surface layer and the lower liquid-permeable surface layer, and a surface layer non-woven fabric is formed; the surface layer non-woven fabric, a flow guide layer, an absorption core and a liquid-impermeable bottom layer are sequentially compounded from top to bottom through a second composite roller device. The paper diaper is in an open collection state when it is unfolded and worn, feces will accumulate in the opening, the opening becomes smaller when the product is removed, and is in a closed state, feces is not easy to fall off when it is replaced, and will not pollute the cleaner, and the technical problem that feces is easy to pollute the cleaner when the adult paper diaper is cleaned is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of disposable sanitary products, in particular to a preparation method of a dry-wet separation adult diaper. BACKGROUND

[0002] With the improvement of people's living standards, people pay more and more attention to personal health care, and people pay more and more attention to the light incontinence adult population. Adult care problems also arise, unlike babies, adults are larger in size, such as incontinence care caused by defecation, traditional diapers cannot absorb or collect feces, and when wiping the patient, feces accumulates on the top surface of the diaper, adult feces is more, which is easy to stick to the body of the wiper or the patient, affecting the wiping effect. SUMMARY

[0003] Therefore, in view of the above problems, the present application provides a preparation method of a dry-wet separation adult diaper. It solves the technical problem that feces is easy to contaminate the cleaner when cleaning the adult diaper.

[0004] To achieve the above purpose, the present application adopts the following technical scheme:

[0005] A preparation method of a dry-wet separation adult diaper, comprising the following methods:

[0006] (1) Manufacture the surface layer non-woven fabric: the upper layer of the liquid-permeable surface layer is transported, and the first cutter roller device is used to cut openings on the upper layer of the liquid-permeable surface layer, the openings are located at the anus of the human body, the first glue spraying device is used to spray glue on both sides of the lower layer of the liquid-permeable surface layer at the same time, and the glue is sprayed on the top surface of the lower layer of the liquid-permeable surface layer in the width direction to form a plurality of equidistantly arranged horizontal glue bodies, the upper layer of the liquid-permeable surface layer and the lower layer of the liquid-permeable surface layer are compounded by the first composite roller device, and a storage cavity which is not completely compounded is formed between the upper layer of the liquid-permeable surface layer and the lower layer of the liquid-permeable surface layer to form the surface layer non-woven fabric;

[0007] (2) Compound: the surface layer non-woven fabric, the flow guide layer, the absorbent core and the liquid-impermeable bottom layer are sequentially compounded from top to bottom by the second composite roller device;

[0008] (3) Cutting: the cutting device is used to cut along the center line of the horizontal glue body to form a sheet-shaped diaper;

[0009] (4) Folding: the diaper is folded by the folding device;

[0010] (5) Packaging: the diaper is packaged by the packaging device.

[0011] Further:

[0012] In the method (1), the elastic PU cotton is conveyed by a conveying mechanism, the conveying mechanism stops every certain time, at the time of stopping, the application seat moves to above the elastic PU cotton of the conveying mechanism, the application seat is lowered and abuts against the elastic PU cotton, the first suction device is actuated to generate suction force on the suction hole to adsorb the elastic PU cotton, the elastic PU cotton is lifted, the elastic PU cotton is moved to above the upper liquid-permeable surface layer, in the moving process, the second glue spraying device sprays glue at the bottom of the elastic PU cotton; when the opening moves to directly below the elastic PU cotton, the lifting rollers of the two lifting mechanisms are actuated to make the upper liquid-permeable surface layer between the two lifting mechanisms static, the application seat is lowered to apply the elastic PU cotton to the periphery of the opening, and the first suction device is stopped; after the application is completed, the lifting mechanism is reset and the application seat is reset.

[0013] The application device comprises two lifting mechanisms arranged on the rack, an application mechanism arranged between the two lifting mechanisms, the lifting mechanism comprises two fixed rollers rotatably arranged on the rack, a lifting seat arranged between the two fixed rollers in a liftable manner, a lifting roller rotatably arranged on the lifting seat, and a lifting cylinder driving the lifting seat to lift; the application mechanism comprises a sliding block horizontally slidably arranged on the rack, a first driving mechanism driving the sliding block to move, an application cylinder arranged below the sliding block, an application seat arranged at the extension end of the application cylinder, a first suction device connected to the application seat, and a conveying mechanism arranged on the rack, the bottom of the application seat is provided with a suction hole, and the application seat is a hollow structure.

[0014] The bottom of the application seat is provided with an application groove, and the suction hole is located in the application groove.

[0015] The conveying mechanism is a conveying belt mechanism, the conveying mechanism is provided with seat bodies arranged at equal intervals, the seat bodies are provided with positioning grooves, and the elastic PU cotton is arranged in the positioning grooves.

[0016] The application device further comprises an infrared sensor.

[0017] The lower liquid-permeable surface layer is a spun-bond non-woven fabric or a hot air non-woven fabric, the transverse breaking elongation of the lower liquid-permeable surface layer is 100%-400%, and the width is 1.2-1.5 times the width of the absorbent core.

[0018] The upper liquid-permeable surface layer is a spandex non-woven fabric, the transverse breaking elongation is 500%-1000%, and the width is 0.6-1.0 times the width of the absorbent core.

[0019] The liquid-impermeable bottom layer comprises a liquid-impermeable air-permeable bottom film and a bottom film non-woven fabric.

[0020] The surface layer non-woven fabric is provided with leakage-preventing flanges on both sides.

[0021] The opening is elliptical, the width of the opening is 120mm to 140mm and the length of the opening is 10mm to 30mm when the diaper is not worn, and the width of the opening is 110mm to 150mm and the length of the opening is 60mm to 100mm when the diaper is worn on a human body.

[0022] By adopting the technical scheme, the present application has the beneficial effects:

[0023] The diaper is in an open collecting state when worn, and feces will accumulate in the opening. When the product is removed, the opening becomes smaller, and is in a closed state. When replaced, the feces is not easy to fall off, especially for patients who are inconvenient to move or are bedridden. When someone needs to wipe the patient, feces pollution to the wiper can be effectively prevented. At the same time, urine will be absorbed by the absorbent core, and feces will be stored in the opening, thereby achieving the effect of dry and wet separation. Further, the elastic PU cotton has a good liquid separation effect, preventing the mixing of liquid and feces. When the elastic PU cotton is applied, the lifting mechanism operates, and the lifting roller moves, so that the upper liquid-permeable surface layer between the two lifting mechanisms is stationary. In the stationary state, the elastic PU cotton is applied more accurately and stably. Further, the application groove is arranged at the bottom of the application seat, which is more accurate and stable. Further, the positioning groove on the seat body can better fix the shape of the elastic PU cotton and prevent the deformation of the elastic PU cotton. Further, the infrared sensor can sense the position of the opening and adjust the positioning, so that the elastic PU cotton is applied more accurately. Further, the lower liquid-permeable surface layer and the upper liquid-permeable surface layer both have elasticity, and the upper liquid-permeable surface layer has better elasticity. When the diaper is worn, it is beneficial to the accumulation and expansion of the opening. When the diaper is taken off, it is beneficial to the narrowing and closing of the opening. At the same time, the lower liquid-permeable surface layer has a larger width, so that a variable storage cavity is formed between the upper liquid-permeable surface layer and the lower liquid-permeable surface layer. According to the difference in elasticity and the difference in width, the collection of feces is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural diagram of the production device of the present application;

[0025] Figure 2 is a structural diagram of the application device;

[0026] Figure 3 is a structural diagram of the application device when the elastic PU cotton is applied

[0027] Figure 4 is a top view of the diaper of the present application;

[0028] Figure 5 is a structural diagram of another state of the diaper;

[0029] Figure 6 is a sectional view of the diaper;

[0030] Figure 7 is a structural diagram of a high polymer stock bin;

[0031] Figure 8 is a structural diagram of an unfolding structure with a groove on the mold cavity;

[0032] Figure 9 is a sectional view of the mold cavity.

[0033] Figure 10 is a structural diagram of a paper diaper with a groove;

[0034] Figure 11 is a structural diagram of the production device with an unfolding roller;

[0035] Figure 12 is a structural diagram of a first composite roller device;

[0036] Figure 13 is a structural diagram of one of the unfolding rollers;

[0037] Figure 14 is a structural diagram of another unfolding roller. DETAILED DESCRIPTION

[0038] The present application will be further described in conjunction with the drawings and specific embodiments.

[0039] Reference Figures 1 to 7 The embodiment provides a preparation method of a dry-wet separation adult paper diaper, including the following methods:

[0040] (1) The manufacturing of the surface layer non-woven fabric 11: the upper liquid-permeable surface layer 111 is transported, and the opening 110 is cut on the upper liquid-permeable surface layer 111 by the first cutter roller device 21, the opening 110 is located at the anus of the human body, the elastic PU cotton 113 is transported by the conveying mechanism 326, the conveying mechanism 326 stops every certain period of time, at the time of stopping, the application seat 324 moves to the top of the elastic PU cotton 113 of the conveying mechanism 326, the application seat 324 is lowered and abuts against the elastic PU cotton 113, the first suction device 325 is actuated to generate suction force on the suction hole to adsorb the elastic PU cotton 113, the elastic PU cotton 113 is lifted and moved to the top of the upper liquid-permeable surface layer 111, during the movement, the second glue spraying device 22 sprays glue at the bottom of the elastic PU cotton 113; when the opening 110 moves directly below the elastic PU cotton 113, the lifting rollers 313 of the two lifting mechanisms 31 are actuated to make the upper liquid-permeable surface layer 111 between the two lifting mechanisms 31 stationary, the application seat 324 is lowered to apply the elastic PU cotton 113 to the side of the opening 110, and the first suction device 325 is stopped; after the application is completed, the lifting mechanism 31 is reset and the application seat 324 is reset; glue is sprayed on both sides of the lower liquid-permeable surface layer 112 by the first glue spraying device 23, and glue is sprayed in the width direction on the top surface of the lower liquid-permeable surface layer 112 to form a plurality of horizontally arranged glue bodies arranged at equal intervals, the upper liquid-permeable surface layer 111 and the lower liquid-permeable surface layer 112 are compounded by the first compounding roller device 4, a storage cavity not fully compounded is formed between the upper liquid-permeable surface layer 111 and the lower liquid-permeable surface layer 112, and the surface layer non-woven fabric 11 is formed.

[0041] The application device 3 comprises two lifting mechanisms 31 arranged on the frame, an application mechanism 32 arranged between the two lifting mechanisms 31, the lifting mechanism 31 comprises two fixed rollers 311 rotatably arranged on the frame, a lifting seat 312 arranged between the two fixed rollers 311 in a liftable manner, a lifting roller 313 rotatably arranged on the lifting seat 312, and a lifting cylinder 314 driving the lifting seat 312 to lift; the application mechanism 32 comprises a sliding block 321 horizontally slidably arranged on the frame, a first driving mechanism 322 driving the sliding block 321 to move, an application cylinder 323 arranged below the sliding block 321, an application seat 324 arranged at the extension end of the application cylinder 323, a first suction device 325 connected to the application seat 324, and a conveying mechanism 326 arranged on the frame, the bottom of the application seat 324 is provided with a suction hole, the application seat 324 is a hollow structure, the bottom of the application seat 324 is provided with an application groove 324, and the suction hole is located in the application groove 324. The conveying mechanism 326 is a conveying belt mechanism, and the conveying mechanism 326 is provided with seat bodies 327 arranged at equal intervals, the seat bodies 327 are provided with positioning grooves 3270, and the elastic PU cotton 113 is arranged in the positioning grooves 3270. The application device 3 further comprises an infrared sensor.

[0042] (2) Composite: The surface nonwoven fabric 11, the flow guide layer 12, the absorbent core 13 and the liquid-impermeable bottom layer 14 are sequentially passed through the second composite roller device 24 from top to bottom for composite;

[0043] (3) Cutting: The cutting device 25 is used to cut along the middle line of the gel body arranged in the transverse direction, and the cut paper diaper is in a sheet shape;

[0044] (4) Folding: The paper diaper is folded by the folding device 26;

[0045] (5) Packaging: The paper diaper is packaged by the packaging device 27.

[0046] The lower liquid-permeable surface layer 112 is a spun-bond nonwoven fabric, a hot air nonwoven fabric or other elastic fabric, and the transverse breaking elongation of the lower liquid-permeable surface layer 112 is usually set to 100%-400%, and the width is usually set to 1.2-1.5 times the width of the absorbent core 13. Other values of the transverse breaking elongation and the width can also be used, and the specific values are set according to the situation.

[0047] The upper liquid-permeable surface layer 111 is a spandex nonwoven fabric or other elastic fabric, and the transverse breaking elongation is usually set to 500%-1000%, and the width is usually set to 0.6-1.0 times the width of the absorbent core 13. Other values of the transverse breaking elongation and the width can also be used, and the specific values are set according to the situation.

[0048] The liquid-impermeable bottom layer 14 includes a liquid-impermeable breathable bottom film and a bottom film nonwoven fabric, and can also have other structures, which are well known and will not be described here.

[0049] The surface nonwoven fabric 11 has leak-proof flanges on both sides, which are well known and will not be described here.

[0050] The opening 110 is in an elliptical shape, and when the paper diaper is not worn, the width of the opening 110 is usually set to 120mm-140mm, and the length of the opening 110 is usually set to 10mm-30mm. When the paper diaper is worn on the human body, the width of the opening 110 is usually set to 110mm-150mm, and the length of the opening 110 is usually set to 60mm-100mm. Other values of the width and the length can also be used, and the specific values are set according to the situation.

[0051] Reference Figures 1 to 14The application also comprises a manufacturing method of the absorbent core 13: a polymer material feeding bin 51 feeds polymer material onto a mold cavity 52, the mold cavity 52 is provided with a first negative pressure hole, the mold cavity 52 is provided with equidistantly arranged groove bodies 521, the groove bodies 521 are elliptical structures, the inner circumferential side of the groove bodies 521 is inclined upward along the central direction, so that a groove 130 is formed on the top surface of the absorbent core 13, the structure of the groove 130 is the same as that of the groove body 521. The groove 130 is sprayed by a third glue spraying device 28, the flow guide layer 12 is adhered to the groove 130, the lower liquid permeable surface layer 111 is adhered to the flow guide layer 12 at the groove 130, the upper liquid permeable surface layer 111 is planar, and the upper liquid permeable surface layer 111 and the lower liquid permeable surface layer 112 form a feces storage cavity 114 at the groove 130. The absorbent core 13 is provided with a protrusion 131 corresponding to the groove body 521.

[0052] In this structure, after the feces enter the opening 110, the feces will move along the circumferential side because the central direction is the highest point, a large amount of feces is gathered on the circumferential side, and there is less feces at the opening 110, so that the feces has a good shielding effect and is prevented from being in contact with the human body in the opposite direction. Meanwhile, the protrusion 131 has a certain buffering effect, and in this way, the absorbent core 13 does not need to be cut, and the material is saved.

[0053] The width of the lower liquid permeable surface layer 112 is greater than that of the upper liquid permeable surface layer 111, the first composite roller device 4 comprises a lower roller 41 rotatably arranged on a rack, an upper roller 42 rotatably arranged on the rack, a second driving mechanism 43 for driving the upper roller 42 and the lower roller 41 to rotate, a first ring groove 410 arranged on the lower roller 41, the lower roller 41 being an adsorption roller, the lower roller 41 being connected with a second adsorption device 44 through a shaft coupling, and a plurality of second negative pressure holes arranged on the lower roller 41.

[0054] Because the width of the lower liquid permeable surface layer 112 is greater than that of the upper liquid permeable surface layer 111, the first ring groove 410 and the second adsorption device 44 are used, which is beneficial to align the two sides of the upper liquid permeable surface layer 111 and the lower liquid permeable surface layer 112 for composite, so that a storage cavity is formed between the upper liquid permeable surface layer 111 and the lower liquid permeable surface layer 112, and the inaccuracy of composite is prevented.

[0055] The above-mentioned second driving mechanism 43 can be two motors or synchronous motors, which are well-known devices and will not be described here.

[0056] The first composite roller device 4 is provided with two unwinding rollers 6 at the front end, the unwinding rollers 6 are driven by a rotating motor 61, the length of the unwinding rollers 6 is the same as the width of the upper roller 42 and the lower roller 41, each unwinding roller 6 is provided with oppositely arranged unwinding strips 62 on both sides, the unwinding strips 62 are spirally arranged on the outer surface of the unwinding roller 6, the unwinding strips 62 can unwind the upper liquid-permeable surface layer 111 and the lower liquid-permeable surface layer 112 to both sides, the unwinding roller 6 corresponding to the lower liquid-permeable surface layer 112 is provided with a second ring groove 63 corresponding to the first ring groove 410, and a pressing roller 64 is rotatably arranged on the frame and located above the second ring groove 63.

[0057] When the upper liquid-permeable surface layer 111 and the lower liquid-permeable surface layer 112 are compounded, the unwinding rollers 6 are used for unwinding first, which is beneficial to control the width and make the compounding more accurate.

[0058] The first cutter roller device 21, the second composite roller device 24, the cutting device 25, the folding device 26 and the packaging device 27 are well-known devices, and will not be described here.

[0059] The first driving mechanism 322 can be a cylinder, a linear motor or other linear motion mechanism, which is a well-known device and will not be described here.

[0060] The infrared sensor can also not be provided, which is a well-known component and will not be described here.

[0061] The first glue spraying device 23, the second glue spraying device 22 and the third glue spraying device 28 are well-known devices, and will not be described here.

[0062] The application device 3 can also adopt other structures, such as a mechanical hand, which is specifically arranged according to the situation.

[0063] The application can adopt PLC or other automatic control systems, which are well-known technologies and will not be described here.

[0064] Although the application is specifically shown and introduced in combination with the preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the spirit and scope of the application defined in the appended claims, and all changes are within the protection scope of the application.

Claims

1. A method for preparing a dry-wet separation adult diaper, characterized in that: Including the following methods: (1) Manufacturing the surface nonwoven fabric: The upper liquid permeable surface layer is conveyed and cut with an opening at the human anus by the first cutting roller device. The first spraying device sprays adhesive on both sides of the lower liquid permeable surface layer. At the same time, adhesive is sprayed on the top surface of the lower liquid permeable surface layer along the width direction to form multiple equidistantly arranged horizontal adhesives. The upper liquid permeable surface layer and the lower liquid permeable surface layer are combined by the first composite roller device. An incompletely combined storage cavity is formed between the upper liquid permeable surface layer and the lower liquid permeable surface layer to form the surface nonwoven fabric. Elastic PU cotton is conveyed by a conveying mechanism. The conveying mechanism stops at regular intervals. When it stops, the application seat moves above the elastic PU cotton on the conveying mechanism, then descends and rests against the elastic PU cotton. The first adsorption device activates, generating adsorption force on the adsorption holes to adsorb the elastic PU cotton, raising it and moving it above the upper liquid-permeable surface layer. During this movement, the second adhesive spraying device sprays adhesive on the bottom of the elastic PU cotton. When the opening moves directly below the elastic PU cotton, the lifting rollers of the two lifting mechanisms activate, causing the upper liquid-permeable surface layer between the two lifting mechanisms to remain stationary. The application seat descends to apply the elastic PU cotton around the opening, and the first adsorption device stops. After application is completed, the lifting mechanism and the application seat are reset. The application device includes two lifting mechanisms mounted on a frame and an application mechanism located between the two lifting mechanisms. Each lifting mechanism includes two fixed rollers rotatably mounted on the frame, a lifting seat rotatably mounted between the two fixed rollers, a lifting roller rotatably mounted on the lifting seat, and a lifting cylinder for driving the lifting seat to move up and down. The application mechanism includes a slider slidably mounted horizontally on the frame, a first driving mechanism for driving the slider to move, an application cylinder located below the slider, an application seat located at the extension end of the application cylinder, a first adsorption device connected to the application seat, and a conveying mechanism mounted on the frame. The application seat has an adsorption hole at its bottom and is a hollow structure. Manufacturing method of absorbent core: The polymer feeding hopper feeds polymer into the mold cavity. The mold cavity is provided with a first negative pressure hole and has equidistantly arranged grooves. The grooves are elliptical in shape, and the inner periphery of the grooves slopes upward along the center direction, so that the top surface of the absorbent core forms a groove. The structure of the groove is the same as that of the groove. The groove is dotted with glue by a third spraying device. The flow guiding layer is adhered to the groove. The lower liquid permeable upper liquid permeable surface layer is located in the groove and adhered to the flow guiding layer. The upper liquid permeable surface layer is planar. The upper liquid permeable surface layer and the lower liquid permeable surface layer are located in the groove to form a waste storage cavity. The bottom of the absorbent core is provided with a protrusion corresponding to the groove. (2) Composite: The surface nonwoven fabric, the flow guiding layer, the absorbent core and the liquid-impermeable bottom layer are sequentially composited from top to bottom through the second composite roller device; (3) Cutting: The colloid is cut along the center line of the horizontally set colloid using a cutting device to form sheet-like diapers; (4) Folding: Fold the diaper using the folding device; (5) Packaging: The diapers are packaged using a packaging device.

2. The method for preparing a dry and wet separation adult diaper according to claim 1, characterized in that: The bottom of the application seat is provided with an application groove, and the adsorption hole is located in the application groove.

3. The method for preparing a dry and wet separation adult diaper according to claim 1, characterized in that: The conveying mechanism is a conveyor belt mechanism, and the conveying mechanism is provided with seats arranged at equal intervals. The seats are provided with positioning grooves, and the elastic PU cotton is placed in the positioning grooves.

4. The method for preparing a dry and wet separation adult diaper according to claim 1, characterized in that: The application device also includes an infrared sensor.

5. The method for preparing a dry and wet separation adult diaper according to claim 1, characterized in that: The lower liquid-permeable surface layer is spunbond nonwoven fabric or hot-air nonwoven fabric, the transverse breaking elongation of the lower liquid-permeable surface layer is 100%-400%, and the width is 1.2-1.5 times the width of the absorbent core.

6. The method for preparing a dry and wet separation adult diaper according to claim 1, characterized in that: The upper liquid-permeable surface layer is made of spandex nonwoven fabric with a transverse breaking elongation of 500%-1000% and a width that is 0.6-1.0 times the width of the absorbent core.

7. The method for preparing a dry and wet separation adult diaper according to claim 1, characterized in that: The impermeable bottom layer includes an impermeable and breathable bottom membrane and a bottom membrane nonwoven fabric.

8. The method for preparing a dry and wet separation adult diaper according to claim 1, characterized in that: The surface non-woven fabric has leak-proof strips on both sides.

9. The method for preparing a dry and wet separation adult diaper according to claim 1, characterized in that: The opening is oval in shape. When the diaper is not worn, the width of the opening is 120 mm to 140 mm and the length of the opening is 10 mm to 30 mm. When the diaper is unfolded and worn on the body, the width of the opening is 110 mm to 150 mm and the length of the opening is 60 mm to 100 mm.

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