CN213157017U

CN213157017U - Dry and comfortable paper diaper

Info

Publication number: CN213157017U
Application number: CN202020975825.6U
Authority: CN
Inventors: 付培松
Original assignee: Guangdong Winsun Personal Care Supplies Co ltd; Hunan Yusheng Personal Care Products Co ltd; Zhejiang Yusheng Personal Care Products Co ltd
Current assignee: Guangdong Winsun Personal Care Supplies Co ltd; Hunan Yusheng Personal Care Products Co ltd; Zhejiang Yusheng Personal Care Products Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-05-11
Anticipated expiration: 2030-06-01

Abstract

The utility model relates to the technical field of sanitary articles, and discloses a dry paper diaper, which comprises a leakage-proof fastening structure and a body, wherein the leakage-proof fastening structure is arranged on the body; the body is including the dry and comfortable layer, core, the bottom that set up in order, and dry and comfortable layer is including ventilative layer and drainage layer, and drainage layer cover connection is on the core, and ventilative layer cover connection is on drainage layer, and it is provided with a plurality of through-holes to distribute on the ventilative layer. The utility model is provided with the ventilation layer and the drainage layer, the ventilation layer separates the skin from the drainage layer, and the skin is prevented from contacting the drainage layer for a long time and being in a wet state; set up a plurality of through-holes on the ventilative layer simultaneously, on discharged urine accessible through-hole permeates the drainage layer, by drainage layer fully drainage to core, reasonable through-hole distribution quickens the moisture through the speed on ventilative layer and increase the gas permeability on ventilative layer, lets the quick, lasting dry and comfortable skin of panty-shape diapers no longer vexed damp heat.

Description

Dry and comfortable paper diaper

Technical Field

The utility model relates to the technical field of sanitary articles, in particular to a dry and comfortable paper diaper.

Background

The main users of the paper diapers are infants or people who suffer from incontinence of urine and feces, the skin of the people is generally sensitive, the paper diapers cannot be replaced in time under normal conditions, urine contained in the paper diapers can irritate the skin of the users, the skin problems of diaper rash and the like easily occur, and the paper diapers with strong absorption capacity and good ventilation property should be used in order to reduce the problems to the maximum extent.

In order to solve the problem, the chinese patent CN201520419200.0 provides a novel paper diaper, which comprises a paper diaper body, a safety sticker, an anti-reverse-osmosis dust-free paper, a diversion pressure groove, an intermediate absorption layer, a PE waterproof film, a random adhesion area and a dry surface layer, wherein the dry surface layer is made of a high-quality non-woven fabric material, the anti-reverse-osmosis dust-free paper is further arranged below the dry surface layer, and the purpose of quick drying is achieved through the drainage of the diversion pressure groove, but the paper diaper with such a design has weak ventilation and air permeability, and the close contact between the paper diaper and the skin can cause various skin problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a paper diaper which has strong ventilation and air permeability and can quickly achieve dryness, and overcomes the defects of insufficient air permeability and poor dryness of the paper diaper in the prior art.

In the technical scheme, the dry paper diaper comprises a leakage-proof fastening structure and a body, wherein the leakage-proof fastening structure is arranged on the body; the body is including the dry and comfortable layer, core, the bottom that set up in order, and dry and comfortable layer is including ventilative layer and drainage layer, and drainage layer cover connection is on the core, and ventilative layer cover connection is on drainage layer, and it is provided with a plurality of through-holes to distribute on the ventilative layer.

The utility model discloses a set up ventilative layer and drainage layer, ventilative layer is between drainage layer and skin, and ventilative layer is the surface energy to reject, the anti-oil water repellent surface fabric of the water type liquid medium of dredging, it keeps apart skin and drainage layer, reduces the area of contact of isolation layer and drainage layer, avoids skin and drainage layer to contact completely, is in moist state for a long time, induces various skin problems; set up a plurality of through-holes on the ventilative layer simultaneously, the through-hole on the ventilative layer of exhaust urine accessible permeates the drainage layer on, is fully drained to the core by the drainage layer, and reasonable through-hole distribution sets up the speed that can accelerate moisture through ventilative layer, also can increase the gas permeability on ventilative layer simultaneously, lets skin surface air circulation speed accelerate, reaches quick lasting dry and comfortable, the purpose of cooling in addition, lets skin no longer stuffy hot and humid.

As a further improved structure form, the total area of the through holes accounts for 20-25% of the area of the breathable layer, and the area is set in a ratio so that the skin can have a certain contact area with the drainage layer, and discharged urine can quickly permeate the drainage layer through the through holes and is fully drained into the core body to be absorbed, so that the purpose of quick absorption is achieved. Of course, this is only a preferred configuration, and there are many ways to reduce the contact area between the skin and the drainage layer, and a ventilation layer having through holes may be provided between the skin and the drainage layer, or two or more ventilation layers may be provided between the skin and the drainage layer, with a certain space between the two or more ventilation layers, or the like.

As a further improved structure form, the area of the through hole is 0.5mm²～3.5mm²And the distance between the geometric centers of the adjacent through holes is 3-4 mm. Preferably, the through-hole can be 1mm ~ 2 mm's of diameter circular port, and the distance between the centre of a circle of adjacent through-hole is 3mm ~ 4mm, and such setting is that the urine of guaranteeing to discharge can distribute on ventilative layer and scatter, then oozes the drainage layer through the through-hole again on, can accelerate the urineThe permeation rate of (2) avoids the urine from excessively concentrating on one place, can not permeate through the through hole fast, causes the drainage ability of drainage layer not full play, reduces the speed that the core absorbs the urine. Of course, the circular through hole arrangement in this embodiment is only a preferred example, and other types of holes, such as polygonal holes like triangle, rectangle, etc., or other irregular holes, can be used as long as the area of the hole is 0.5mm²～3.5mm²The distance between the geometric centers of the adjacent through holes is within the range of 3 mm-4 mm, and the requirement of the dispersion arrangement and the area occupation ratio is met.

As further improved structural style, the one side spraying that foretell drainage layer is close to ventilative layer has the hot melt adhesive, ventilative layer covers the connection on drainage layer through the hot melt adhesive, drainage layer can support ventilative layer, ventilative layer can be connected together with drainage layer tightly like this, hardly take place to drop, and ventilative layer and drainage layer in close contact with, can guarantee that the urine permeates out the back from the through-hole on ventilative layer, can contact drainage layer at once, be absorbed by drainage layer drainage to the core at once, reach quick dry and comfortable purpose.

As a further improved structure form, the drainage layer is composed of composite fibers and a hydrophilic oil agent, and the gram weight of the drainage layer is 18g/m²～24g/m²The composite fiber can be PE/PP or PE/PET skin-core bi-component fiber, the fluffy degree of the PE/PP or PE/PET bi-component fiber is higher, the softness is good, the composite fiber is not easy to deform, the drainage layer of the component is more comfortable and skin-friendly, the paper diaper wearer can not be repelled, the water absorption capacity of the drainage layer can be improved due to the arrangement of the hydrophilic oil agent, the urine is quickly drained to the core body, the accumulation of the urine drainage speed is avoided, and the risk of side leakage is increased.

As a further improved structure, the leakage-proof fastening structure comprises a leakage-proof separation edge, a protection rubber band and an adhesive part, wherein the protection rubber band penetrates through the leakage-proof separation edge, the adhesive part is arranged on two side edges of one end of the body, the other end of the body is provided with an adhesive area matched with the adhesive part, the adhesive part is adhered and connected with the adhesive area, the adhesive part is tightly adhered to the adhesive area at the waist position respectively in a wearing state, the paper diaper is changed into a trouser shape from a sheet shape and is bound at the waist position, and the paper diaper is prevented from falling off due to movement or mistaken pulling of a user; meanwhile, under the action of the sticking tension of the sticking piece, the protection rubber band on the leakage-proof separation edge is stressed and stretched, the leakage-proof separation edge is bound and tightly stuck to the skin to be scattered, the urine of a user is prevented from leaking from the side edge under the conditions of sleeping and the like, the protection rubber band has certain elasticity, and the paper diaper is ensured to be suitable for users with different body types.

As a further improved structure form, the wrapping body used for wrapping the core body is arranged outside the core body in a wrapping mode, loose core body materials can be wrapped and fixed between the bottom layer and the drainage layer through the wrapping body, the core body is prevented from sliding randomly to cause loss of water absorption capacity, and meanwhile the phenomenon that the core body expands excessively after absorbing water to damage the dry layer and enable the dry effect of the paper diaper to be lost can be avoided.

As a further improved structure form, the inclusion is of a hollow cavity structure, an opening is formed in one side, close to the bottom layer, of the inclusion, the air permeability of the paper diaper can be increased due to the fact that the inclusion is far away from the skin of the wearing contact part and is close to the external space, external air can enter the paper diaper through the opening and flows to the skin of the wearing contact part from the through hole of the air permeable layer, the purpose of accelerating the circulation of the air inside and outside the paper diaper is achieved, partial heat is taken away by the air, and the skin of the wearing contact part is enabled to be dry and comfortable quickly and durably. Meanwhile, if the paper diaper absorbs too much water and is not yet ready to be replaced, the core body can expand towards the opening close to the bottom layer, and the phenomenon that the core body expands towards the dry layer to cause the failure of the dry layer and the skin is moistened again is avoided.

As further improved structural style, foretell bottom includes water barrier and non-woven fabrics layer, the water barrier sets up between non-woven fabrics layer and core, the water barrier can be that PE membrane or other surface energy repel, the water-repellent surface fabric of anti oil of water class liquid medium of separating, set up like this and can avoid the core to absorb water too much the back, the infiltration passes through the bottom, other clothings of moist wearer, influence personal hygiene, simultaneously can not excessively completely cut off the inside and outside air exchange of panty-shape diapers, guarantee that outside air can see through the bottom and enter panty-shape diapers, the rethread opening, the through-hole flows the exchange, guarantee panty-shape diapers's gas permeability.

As a further improved structure, one surface of the waterproof layer, which is close to the core, is provided with a urine display adhesive, the urine display adhesive is a color-changing type urine display adhesive or a disappearing type urine display adhesive, the urine display adhesive is in contact with the core, after the core absorbs sufficient urine, the urine permeates into the urine display adhesive, the color of the urine display adhesive or the depth of the color can be changed, and therefore a caregiver is reminded to replace the paper diaper in time.

Compared with the prior art, the beneficial effects are:

the utility model has the advantages that the breathable layer and the drainage layer are arranged, the breathable layer is arranged between the drainage layer and the skin, the breathable layer with the water repellency separates the skin from the drainage layer, the contact area between the isolation layer and the drainage layer is reduced, the skin is prevented from being in complete contact with the drainage layer, the skin is kept in a wet state for a long time, and various skin problems are induced; set up a plurality of through-holes on the ventilative layer simultaneously, the through-hole on the ventilative layer of exhaust urine accessible permeates the drainage layer on, is fully drained to the core by the drainage layer, and reasonable through-hole distribution sets up the speed that can accelerate moisture through ventilative layer, also can increase the gas permeability on ventilative layer simultaneously, lets skin surface air circulation speed accelerate, reaches quick, lasting dry and comfortable, the purpose of cooling, lets skin no longer stuffy hot and humid.

Drawings

FIG. 1 is a schematic view of the overall structure of the dry paper diaper of the present invention in a sheet state;

FIG. 2 is a schematic view of the overall structure of the dry paper diaper of the present invention in a pant-like state;

FIG. 3 is a schematic view of a dry layer of the dry paper diaper of the present invention;

fig. 4 is a schematic view of the breathable layer of the dry paper diaper of the present invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

examples

Fig. 1 to 4 show an embodiment of a dry paper diaper, which includes a leakage-proof fastening structure 1 and a body 2, wherein the leakage-proof fastening structure 1 is disposed on the body 2; body 2 is including the dry and comfortable layer 3, core 4, the bottom 5 that set up in order, and dry and comfortable layer 3 is including ventilative layer 31 and drainage layer 32, and drainage layer 32 covers the connection on core 4, and ventilative layer 31 covers the connection on drainage layer 32, and it is provided with a plurality of through-holes 311 to distribute on the ventilative layer.

Wherein, the total area of the through holes 311 accounts for 20 to 25 percent of the area of the breathable layer 31.

In addition, the area of the through hole 311 is 0.5mm²～3.5mm²The distance between the geometric centers of the adjacent through holes 311 is 3mm to 4mm, and the through holes may be circular, polygonal or other irregular shapes.

Wherein, the one side that drainage layer 32 is close to ventilative layer 31 has the hot melt adhesive 33 to spray, and ventilative layer 31 covers through hot melt adhesive 33 and connects on drainage layer 32.

In addition, the drainage layer 32 is composed of composite fiber and hydrophilic oil agent, and the gram weight of the drainage layer 32 is 18g/m²～ 24g/m²The composite fiber is PE/PP or PE/PET sheath-core bi-component fiber or other multi-component fiber.

Wherein, leak protection fastening structure 1 includes that the leak protection separates limit 11, protects and encloses rubber band 12, pastes piece 13, protects and encloses rubber band 12 and wears to locate on leak protection separates limit 11, pastes piece 13 and sets up on two sides of 2 one ends of body, the other end of body 2 be provided with paste piece 13 complex adhesion area 21, paste piece 13 and adhesion area 21 paste and be connected.

In addition, an enclosure 41 for enclosing the core 4 is provided outside the core 4.

The inclusion 41 is a hollow cavity structure, and an opening 42 is formed in one surface of the inclusion 41 close to the bottom layer 5.

In addition, the bottom layer 5 includes a water barrier layer 51 and a nonwoven fabric layer 52, the water barrier layer 51 is disposed between the nonwoven fabric layer 52 and the core 4, and the composition of the nonwoven fabric layer 52 may be PE/PP or PE/PET sheath-core bicomponent fiber, or other multicomponent fiber.

Wherein, the surface of the water barrier layer 51 close to the core 4 is provided with a urine display glue 6, and the urine display glue is a color-changing type urine display glue or a disappearing type urine display glue.

Specifically, the method comprises the following steps: as shown in fig. 1, 2 and 3, the dry paper diaper comprises a leakage-proof fastening structure 1 and a body 2, wherein the leakage-proof fastening structure 1 is arranged on the body 2; body 2 is including the dry and comfortable layer 3, core 4, the bottom 5 that set up in order, and dry and comfortable layer 3 is including ventilative layer 31 and drainage layer 32, and drainage layer 32 covers the connection on core 4, and ventilative layer 31 covers the connection on drainage layer 32, and the distribution is provided with a plurality of through-holes 311 on the ventilative layer.

The breathable layer 31 is arranged between the drainage layer 32 and the skin, and the breathable layer 31 is an oil-resistant water-repellent fabric with the surface capable of repelling and distancing water-based liquid media, so that the skin is isolated from the drainage layer 32, the contact area between the isolation layer and the drainage layer 32 is reduced, the skin is prevented from being completely contacted with the drainage layer 32 and being in a wet state for a long time, and various skin problems are caused; set up a plurality of through-holes 311 on ventilative layer 31 simultaneously, the through-hole 311 of ventilative layer 31 of exhaust urine accessible permeates drainage layer 32 on, by drainage layer 32 fully drainage to core 4, the speed that moisture passes through ventilative layer 31 can be accelerated to the reasonable distribution setting of through-hole 311, also can increase ventilative layer 31's gas permeability simultaneously, let skin surface air circulation speed accelerate, reach fast, lasting dry and comfortable, the purpose of cooling, let skin no longer stuffy moist heat.

As shown in fig. 4, the total area of the through holes 311 accounts for 20% to 25% of the area of the air permeable layer 31, and the area ratio is set to reduce the contact between the skin and the drainage layer 32, but the skin and the drainage layer 32 have a certain contact area, and the discharged urine can quickly permeate into the drainage layer 32 through the through holes 311 and is sufficiently drained into the core body 4 to be absorbed, so as to achieve the purpose of quick absorption. Of course, this is only a preferred configuration, and there are many ways to reduce the contact area between the skin and the drainage layer 32, and the air-permeable layer 31 having the through holes 311 may be provided between the skin and the drainage layer 32, or two or more air-permeable layers 31 may be provided between the skin and the drainage layer, with a certain interval between the two or more air-permeable layers 31, or the like.

As shown in FIG. 4, the area of the through-hole 311 is 0.5mm²～3.5mm²The utility model discloses a drainage layer 32, including core 4, the through-hole that provides in this embodiment is diameter 1mm ~ 2 mm's circular port, distance between the geometrical center of adjacent through-hole 311 is 3mm ~ 4mm, such setting is in order to guarantee that discharged urine can distribute on ventilative layer 31 and scatter, then on rethread through-hole 311 oozes drainage layer 32, can accelerate the infiltration rate of urine, avoid the urine to excessively concentrate on a place, can not permeate through-hole 311 fast, cause drainage ability on drainage layer 32 can not full play, reduce the speed that core 4 absorbs the urine. Of course, the circular through holes 311 in this embodiment are only a preferred example, and other types of holes, such as triangular, rectangular, etc. polygonal, or other irregular holes, can be used as long as the area of the holes is 0.5mm²～3.5mm²The distance between the geometric centers of the adjacent through holes is within the range of 3 mm-4 mm, and the requirement of the dispersion arrangement and the area occupation ratio is met.

The one side spraying that drainage layer 32 in this embodiment is close to ventilative layer 31 has hot melt adhesive 33, ventilative layer 31 covers the connection on drainage layer 32 through hot melt adhesive 33, drainage layer 32 can support ventilative layer 31, ventilative layer 31 can link together with drainage layer 32 tightly like this, it hardly takes place to drop, and ventilative layer 31 and drainage layer 32 in close contact with, can guarantee that the urine permeates out the back from ventilative layer 31's through-hole 311, can contact drainage layer 32 at once, be absorbed by drainage layer 32 drainage to core 4, reach quick dry and comfortable purpose.

The drainage layer 32 in this embodiment is composed of composite fibers and a hydrophilic oil agent, and the gram weight of the drainage layer 32 is 18g/m²～24g/m²The composite fiber can be PE/PP or PE/PET skin-core bi-component fiber, the fluffy degree of PE/PP or PE/PET bi-component fiber is higher, the softness is good, and non-deformable, the drainage layer 32 of this kind of component is more comfortable and skin-friendly, can not let the panty-shape diapers wearer reject, the setting of hydrophilic finish in addition can improve drainage layer 32 water-absorbing capacity, drainage the urine to core 4 fast, avoid urine drainage speed not enough to take place to pile up, thereby increase the risk of edge leakage.

As shown in fig. 2, the leakage-proof fastening structure 1 includes a leakage-proof separation edge 11, a protection rubber band 12, and an adhesive member 13, the protection rubber band 12 is inserted into the leakage-proof separation edge 11, the adhesive member 12 is disposed on two side edges of one end of the body 2, the other end of the body 2 is provided with an adhesive area 21 matched with the adhesive member 13, the adhesive member 13 is adhered to the adhesive area 21, the adhesive member 13 is tightly adhered to the adhesive area 21 at the waist position respectively in a wearing state, the diaper is changed into a pant shape from a sheet shape and is bound to the waist position, so as to prevent the diaper from falling off due to the movement or mistaken pulling of a user; meanwhile, under the action of the sticking tension of the sticking piece 13, the protection rubber band 12 on the leakage-proof separation edge 11 is stressed and stretched to tightly stick the leakage-proof separation edge to the skin, so that urine of a user is prevented from leaking from the side edge under the conditions of sleeping and the like, and the protection rubber band 12 has certain elasticity, so that the paper diaper is ensured to be suitable for users with different body types.

The core 4 wraps the inclusion body 41, the core 4 is wrapped by the inclusion body 41, loose core materials can be wrapped and fixed between the bottom layer 5 and the drainage layer 32 by the inclusion body 41, the core 4 is prevented from sliding randomly to cause loss of water absorption capacity, excessive expansion after the core 4 absorbs water can be avoided, the dry layer 3 is damaged, and the dry effect of the paper diaper is lost.

The inclusion 41 in this embodiment is hollow cavity structures, the one side that the inclusion 41 is close to bottom 5 is provided with opening 42, set up like this and to increase the gas permeability of panty-shape diapers, because opening 42 keeps away from the skin of wearing the contact site and is close to the exterior space, outside air can enter into the panty-shape diapers through opening 42, the skin of wearing the contact site flows from the through-hole 311 of ventilative layer 31 again, reach the purpose of accelerating the circulation of the inside and outside air of panty-shape diapers, let the air take away partial heat, make the skin of wearing the contact site dry and feel fast, lastingly. Meanwhile, if the paper diaper absorbs too much water and is not yet ready to be replaced, the core 4 can expand towards the opening 42 close to the bottom layer 5, so that the core is prevented from expanding towards the dry layer 3, the dry layer 3 is prevented from losing efficacy, and the skin is prevented from being wetted again.

The bottom layer 5 in this embodiment includes a water barrier layer 51 and a nonwoven fabric layer 52, the water barrier layer 51 is disposed between the nonwoven fabric layer 52 and the core 4, the water barrier layer 51 may be a PE film or other oil-and water-repellent fabric with a surface capable of repelling and separating water-based liquid media, and the nonwoven fabric layer 52 may be composed of PE/PP or PE/PET sheath-core bicomponent fibers, or other fibers with a plurality of components. Set up like this and can avoid core 4 to absorb water too much after, moisture infiltration passes through bottom 5, and other clothings of moist wearer influence personal hygiene, can not excessively completely cut off the inside air exchange with the outside of panty-shape diapers simultaneously, guarantee that outside air can see through bottom 5 and enter panty-shape diapers, rethread opening 42, through-hole 311 flow exchange, guarantee panty-shape diapers's gas permeability.

One side of the water-proof layer 51 in this embodiment, which is close to the core 4, is provided with a urine display adhesive 6, the urine display adhesive 6 is a color-changing type urine display adhesive or a disappearing type urine display adhesive, the urine display adhesive 6 contacts with the core 4, after the core 4 absorbs sufficient urine, the urine permeates into the urine display adhesive 6, the color of the urine display adhesive 6 or the depth of the color can be changed, and therefore a caregiver is reminded to change the paper diaper in time.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A dry paper diaper comprises a leakage-proof fastening structure (1) and a body (2), wherein the leakage-proof fastening structure (1) is arranged on the body (2); the dry and comfortable core is characterized in that the body (2) comprises a dry and comfortable layer (3), a core body (4) and a bottom layer (5) which are sequentially arranged, the dry and comfortable layer (3) comprises a breathable layer (31) and a drainage layer (32), the drainage layer (32) is connected to the core body (4) in a covering mode, the breathable layer (31) is connected to the drainage layer (32) in a covering mode, and a plurality of through holes (311) are distributed in the breathable layer.

2. The dry paper diaper according to claim 1, wherein the total area of the plurality of through holes (311) accounts for 20-25% of the area of the air-permeable layer (31).

3. A dry paper diaper according to claim 2, characterized in that the area of the through-hole (311) is 0.5mm²～3.5mm²The distance between the geometric centers of the adjacent through holes (311) is 3-4 mm.

4. The dry paper diaper according to claim 1, wherein the side of the drainage layer (32) close to the air permeable layer (31) is coated with a hot melt adhesive (33), and the air permeable layer (31) is covered and connected on the drainage layer (32) through the hot melt adhesive (33).

5. The dry paper diaper according to claim 4, wherein the drainage layer (32) is composed of composite fibers and a hydrophilic oil agent, and the gram weight of the drainage layer (32) is 18g/m²～24g/m²。

6. The dry paper diaper according to claim 1, wherein the leakage-proof fastening structure (1) comprises a leakage-proof separating edge (11), a protective rubber band (12) and an adhesive member (13), the protective rubber band (12) is arranged on the leakage-proof separating edge (11) in a penetrating manner, the adhesive member (13) is arranged on two side edges of one end of the body (2), the other end of the body (2) is provided with an adhesive area (21) matched with the adhesive member (13), and the adhesive member (13) is connected with the adhesive area (21) in a sticking manner.

7. The dry paper diaper according to claim 1, wherein the core (4) is externally provided with an enclosure (41) for enclosing the core (4).

8. The dry paper diaper according to claim 7, wherein the enveloping body (41) is a hollow cavity structure, and an opening (42) is formed on one side of the enveloping body (41) close to the bottom layer (5).

9. The dry paper diaper according to claim 1, wherein the bottom layer (5) comprises a water barrier layer (51) and a nonwoven layer (52), the water barrier layer (51) being arranged between the nonwoven layer (52) and the core (4).

10. The dry paper diaper according to claim 9, wherein the side of the water barrier (51) close to the core (4) is provided with a urine-developing adhesive (6).