阅读说明：本技术 一种复合吸收芯体、芯体的生产工艺及儿童尿裤 (Composite absorption core, production process of core and child diaper ) 是由 王西山 孙卫卫 孙峰 梁金攀 丁涛 于 2021-08-02 设计创作，主要内容包括：本申请实施例提供一种复合吸收芯体、芯体的生产工艺及儿童尿裤,涉及尿裤技术领域。一种复合吸收芯体,包括：中心布体,所述中心布体的上下两个端面分别设置有第一高分子吸水层和第二高分子吸水层,所述第一高分子吸水层的上端面设置有上层布体,所述第二高分子吸水层的下端面间隔设置有下层布体。本申请通过第一高分子吸水层、第二高分子吸水层、第三高分子吸水层和第四高分子吸水层对尿液进行吸收,可承载更多的分量的尿液,降低尿液渗漏的可能性,此外,设置断层,可使尿液均匀的在第二高分子吸水层和第四高分子吸水层的层面内扩散,可更稳定更均匀的吸收液体,避免部分位置吸收过于饱和,导致液体渗漏的可能。(The embodiment of the application provides a composite absorption core, a production process of the core and a child diaper, and relates to the technical field of diapers. A composite absorbent core comprising: the fabric comprises a central fabric body, wherein a first polymer water absorption layer and a second polymer water absorption layer are respectively arranged on the upper end face and the lower end face of the central fabric body, an upper fabric body is arranged on the upper end face of the first polymer water absorption layer, and a lower fabric body is arranged on the lower end face of the second polymer water absorption layer at intervals. This application absorbs water the layer through first polymer, the second polymer absorbs water the layer, the third polymer absorbs water layer and the fourth polymer absorbs water the layer and absorbs the urine and absorb, can bear the urine of more weight, reduce the possibility of urine seepage, in addition, set up the fault, can make the urine even absorb water the layer and the fourth polymer absorb water the aspect internal diffusion on layer at the second polymer, can more stabilize more even absorption liquid, avoid partial position to absorb too saturated, lead to the possibility of liquid seepage.)

1. A composite absorbent core, comprising:

the cloth comprises a central cloth body (100), wherein a first polymer water absorption layer (110) and a second polymer water absorption layer (120) are respectively arranged on the upper end face and the lower end face of the central cloth body (100), an upper cloth body (130) is arranged on the upper end face of the first polymer water absorption layer (110), lower cloth bodies (140) are arranged on the lower end face of the second polymer water absorption layer (120) at intervals, and a fault (150) is formed between every two adjacent lower cloth bodies (140);

the fabric comprises an outer layer fabric body (200), wherein the outer layer fabric body (200) wraps the upper layer fabric body (130) and the surface of the lower layer fabric body (140), a third high polymer water absorption layer (210) is arranged between the outer layer fabric body (200) and the upper layer fabric body (130), and a fourth high polymer water absorption layer (220) is arranged between the outer layer fabric body (200) and the lower layer fabric body (140).

2. The composite absorbent core as claimed in claim 1, wherein the lateral edges of the outer layer cloth (200) are bonded, and the joint between the outer layer cloth (200) and the third polymeric water absorbent layer (210) and the joint between the outer layer cloth (200) and the fourth polymeric water absorbent layer (220) are provided with glue layers (300).

3. The composite absorbent core according to claim 1, wherein said first polymeric water-absorbent layer (110), said second polymeric water-absorbent layer (120), said third polymeric water-absorbent layer (210), and said fourth polymeric water-absorbent layer (220) are all polymeric water-absorbent resin layers.

4. The composite absorbent core as claimed in claim 1, wherein said central fabric body (100), said upper fabric body (130), said lower fabric body (140) and said outer fabric body (200) are all nonwoven layers, and the nonwoven layers are any one of heat-seal nonwoven, bulky nonwoven and spunlace nonwoven.

5. A composite absorbent core according to claim 1, wherein said faults (150) are arranged equidistantly along the length of said central body (100).

6. The composite absorbent core as claimed in claim 1, wherein said outer layer cloth (200) is located under said fourth polymeric water absorbent layer (220), and both sides of said outer layer cloth (200) are folded over said third polymeric water absorbent layer (210) and then bonded together.

7. A process for the production of a core, comprising a composite absorbent core according to any of claims 1-6, and the steps of:

the method comprises the following steps: spraying glue on the edge of the central cloth body (100) by using a glue spraying device, and reserving a part which is not sprayed with glue;

step two: respectively moving the upper cloth body (130) and the lower cloth body (140) on the upper end surface and the lower end surface of the central cloth body (100), and bonding the edge of the upper cloth body (130) and the edge of the lower cloth body (140) with the edge of the central cloth body (100);

step three: high-molecular water-absorbing particles are filled between the central cloth body (100) and the upper cloth body (130) and between the central cloth body (100) and the lower cloth body (140), so that a first high-molecular water-absorbing layer (110) is formed between the central cloth body (100) and the upper cloth body (130), and a second high-molecular water-absorbing layer (120) is formed between the central cloth body (100) and the lower cloth body (140);

step four: spraying glue to the part of the central cloth body (100) which is not sprayed with glue, and bonding the central cloth body (100) with the upper layer cloth body (130) and the lower layer cloth body (140);

step five: spraying glue on the edge of the outer layer cloth body (200) by using a glue spraying device, and reserving a part which is not sprayed with glue;

step six: coating the surfaces of the upper cloth body (130) and the lower cloth body (140) with the outer cloth body (200), and bonding the edge of the outer cloth body (200) and the edge of the upper cloth body (130) and the edge of the outer cloth body (200) and the edge of the lower cloth body (140) together;

step seven: high-molecular water-absorbing particles are filled between the outer-layer cloth body (200) and the upper-layer cloth body (130) and between the outer-layer cloth body (200) and the lower-layer cloth body (140), so that a third high-molecular water-absorbing layer (210) is formed between the outer-layer cloth body (200) and the upper-layer cloth body (130), and a fourth high-molecular water-absorbing layer (220) is formed between the outer-layer cloth body (200) and the lower-layer cloth body (140);

step eight: and spraying glue to the part of the outer layer cloth body (200) which is not sprayed with glue, and bonding the outer layer cloth body (200) with the upper layer cloth body (130) and the lower layer cloth body (140) together to obtain the composite absorbent core.

8. A child diaper, characterized in that it comprises a composite absorbent core according to any of claims 1-6, and a waist belt body (400) and a crotch belt body (500), said composite absorbent core being arranged inside said crotch belt body (500), and both ends of said crotch belt body (500) being connected to said waist belt body (400) by means of a connecting belt body (600).

9. A diaper as claimed in claim 8, wherein said crotch belt body (500) is composed of two crotch fabric layers (510), and the composite absorbent core is disposed between said two crotch fabric layers (510), the side edges of said two crotch fabric layers (510) being thermally bonded and fixed, said crotch fabric layers (510) being nonwoven fabric layers.

Technical Field

The application relates to the technical field of diapers, in particular to a composite absorption core, a production process of the core and a child diaper.

Background

In the related technology, the absorption core is an important component of the children diaper, and the absorption core mainly comprises a cloth layer and a high polymer water absorption layer.

The current absorption core when absorbing the urine, the inhomogeneous condition of urine distribution appears easily to lead to the seepage of urine, be unfavorable for the use.

Disclosure of Invention

The present application is directed to solving at least one of the problems in the prior art. Therefore, the application provides a composite absorption core, a production process of the core and a child diaper, wherein the composite absorption core, the production process of the core and the child diaper have a liquid absorption function, so that urine can be distributed more uniformly, and the possibility of liquid leakage is reduced.

The present application further provides a composite absorbent core.

A composite absorbent core according to an embodiment of the first aspect of the present application, comprising: the water absorption cloth comprises a central cloth body, wherein a first polymer water absorption layer and a second polymer water absorption layer are respectively arranged on the upper end face and the lower end face of the central cloth body, an upper cloth body is arranged on the upper end face of the first polymer water absorption layer, lower cloth bodies are arranged on the lower end face of the second polymer water absorption layer at intervals, and a fault is formed between every two adjacent lower cloth bodies; the outer cloth body wraps the upper cloth body and the surface of the lower cloth body, a third high-molecular water absorption layer is arranged between the outer cloth body and the upper cloth body, and a fourth high-molecular water absorption layer is arranged between the outer cloth body and the lower cloth body.

According to a compound core that absorbs of this application embodiment, absorb water the layer through first polymer, the second polymer absorbs water the layer, the third polymer absorbs water the layer and the fourth polymer absorbs water the layer and absorbs water the urine, can bear the urine of more components, reduce the possibility of urine seepage, in addition, set up the fault, can make the urine even absorb water the layer and the fourth polymer at the second polymer and absorb water the aspect internal diffusion on layer, can more stabilize more even absorption liquid, avoid partial position to absorb too saturation, lead to the possibility of liquid seepage.

In addition, the composite absorption core according to the embodiment of the application also has the following additional technical characteristics:

according to some embodiments of the present application, the side edges of the outer fabric body are connected by bonding, and the joint of the outer fabric body and the third polymer water-absorbing layer and the joint of the outer fabric body and the fourth polymer water-absorbing layer are both provided with glue layers.

According to some embodiments of the present application, the first, second, third and fourth polymer water-absorbing layers are all polymer water-absorbing resin layers.

According to some embodiments of the present application, the central fabric body, the upper fabric body, the lower fabric body and the outer fabric body are nonwoven fabric layers, and the nonwoven fabric layers are any one of heat-seal nonwoven fabrics, bulky nonwoven fabrics and spunlace nonwoven fabrics.

According to some embodiments of the application, the faults are arranged equidistantly along the length of the central cloth body.

According to some embodiments of the present application, the outer layer fabric body is located below the fourth polymer water absorption layer, and two sides of the outer layer fabric body are folded to be above the third polymer water absorption layer and then bonded together.

A process for producing a core according to an embodiment of the second aspect of the present application, comprising a composite absorbent core according to an embodiment of the first aspect of the present application, and the steps of:

the method comprises the following steps: spraying glue on the edge of the central cloth body by using a glue spraying device, and reserving a part which is not sprayed with glue;

step two: respectively moving the upper layer cloth body and the lower layer cloth body on the upper end surface and the lower end surface of the central cloth body, and bonding the edge of the upper layer cloth body and the edge of the lower layer cloth body with the edge of the central cloth body;

step three: filling high-molecular water-absorbing particles between the central cloth body and the upper cloth body and between the central cloth body and the lower cloth body, so that a first high-molecular water-absorbing layer is formed between the central cloth body and the upper cloth body, and a second high-molecular water-absorbing layer is formed between the central cloth body and the lower cloth body;

step four: spraying glue to the part of the central cloth body which is not sprayed with glue, and bonding the central cloth body with the upper layer cloth body and the lower layer cloth body together;

step five: spraying glue on the edge of the outer layer cloth body by using a glue spraying device, and reserving a part which is not sprayed with glue;

step six: coating the surfaces of the upper layer cloth body and the lower layer cloth body with the outer layer cloth body, and bonding the edge of the outer layer cloth body, the edge of the upper layer cloth body, the edge of the outer layer cloth body and the edge of the lower layer cloth body together;

step seven: high-molecular water-absorbing particles are filled between the outer-layer cloth body and the upper-layer cloth body and between the outer-layer cloth body and the lower-layer cloth body, so that a third high-molecular water-absorbing layer is formed between the outer-layer cloth body and the upper-layer cloth body, and a fourth high-molecular water-absorbing layer is formed between the outer-layer cloth body and the lower-layer cloth body;

step eight: and spraying glue to the part of the outer layer cloth body which is not sprayed with glue, and bonding the outer layer cloth body with the upper layer cloth body and the lower layer cloth body together to obtain the composite absorption core body.

According to children's urine trousers of this application third aspect embodiment, include according to this application first aspect embodiment compound absorption core, and the waist area body and the crotch area body, compound absorption core sets up in the crotch area body, just the both ends of crotch area body through the area of connection area body with the waist area body is connected.

According to some embodiments of the present application, the crotch belt body is composed of two crotch fabric layers, and the composite absorbent core is disposed between the two crotch fabric layers, side portions of the two crotch fabric layers being bonded and fixed by heat, the crotch fabric layer being a nonwoven fabric layer.

According to some embodiments of the present application, the waist belt body comprises an inner belt body and two outer belt bodies, wherein one side of each of the two outer belt bodies is fixedly connected with the inner belt body through a support belt body, a connection area is formed between the two support belt bodies, and the connection belt bodies are detachably mounted in the connection area; the connecting belt body comprises an upper connecting part and a lower connecting part, the bottom end of the upper connecting part is fixedly connected with the top end of the lower connecting part, the upper connecting part is detachably arranged in the connecting area, and the lower connecting part is connected with the crotch belt body; go up connecting portion include first sub-paster and the sub-paster of second, the sub-paster fixed connection of first sub-paster and second, interior area body surface mounting has first female paster, just first female paster with first sub-paster bonds, outer area body internally mounted has the female paster of second, just the female paster of second with the sub-paster of second bonds.

According to some embodiments of this application, lower connecting portion are for having the open-ended bag body, just connecting portion cover is established down the surface of the crotch area body, the opening part of lower connecting portion is provided with the sealing washer, the inner wall of sealing washer with crotch area body fixed connection, the inside of lower connecting portion is provided with the water barrier, just the surperficial interval of water barrier is provided with the strip that absorbs water, form the catch basin between the strip that absorbs water.

According to some embodiments of the application, the water barrier does the dampproofing water barrier layer of laying of the inside of lower connecting portion, the strip that absorbs water is any one of sponge strip and the silver that absorbs water, just the strip that absorbs water with crotch area body fixed connection.

According to some embodiments of this application, the waist area body is inside to be provided with cyclic annular layer that absorbs water, just cyclic annular layer that absorbs water includes cyclic annular water proof cloth and cyclic annular cloth that absorbs water, cyclic annular water proof cloth outside is provided with cyclic annular sub-paster, interior internal portion is provided with cyclic annular mother's paster, just cyclic annular sub-paster with cyclic annular mother's paster bonds, cyclic annular cloth setting that absorbs water is in the inside of cyclic annular water proof cloth, just cyclic annular water absorption cloth with install the supporter that absorbs water between the cyclic annular water proof cloth.

According to some embodiments of the application, the water absorption support body is provided with at least two along the circumference equidistance of the annular water absorption cloth, and the water absorption support body is a cylindrical water absorption cotton body.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

When the child diaper absorbs urine, the urine is absorbed by the absorption core body in the crotch region, the waist region of the child diaper is mainly used for supporting the crotch region and does not need to absorb the urine, the crotch region and the waist region can be integrally replaced when the traditional diaper is replaced, the waist region of the diaper cannot be reused, waste is caused, the use cost is increased, and if the urine in the crotch region permeates into the waist region, the waist region is polluted, and the repeated use of the waist region is not facilitated;

install the connection area body in the joining region on waist area body surface through the detachable mode, when there is the urine inside and outside the crotch portion area body, can take the crotch portion area body that has the urine and the connection area body of connection to demolish the back from waist area body surface, again take the crotch portion area body of an unused of waist area body surface mounting, then use again, can carry out used repeatedly to the waist area body, reduce the waste of the waist area body, use cost is saved, furthermore, the urine of crotch portion area body inside is when spreading to the connection area body and waist area body, the inside water barrier of lower junction portion can hinder the removal of urine, reduce the urine and spread to the waist area body, reduce the pollution of urine to the waist area body, do benefit to the used repeatedly of the waist area body.

Sweat is easily generated on the skin surface of the child, and the sweat easily pollutes the waist area of the child diaper, so that the repeated use of the waist area of the child diaper is not facilitated;

sweat generated on the surface of the skin of the child can be absorbed by the annular water absorption cloth and the water absorption supporting body, the annular water insulation cloth can block the flow of the sweat, the flow of the sweat to the waist belt body is reduced, the possibility of pollution of the sweat on the surface of the skin of the child to the waist belt body is reduced, the repeated use of the waist belt body is facilitated, in addition, the water absorption supporting body is additionally arranged, the water absorption supporting body can support the annular water insulation cloth, the distance between the annular water insulation cloth and the waist belt body and the skin of the child can be increased, the possibility of contact between the sweat on the surface of the skin of the child and the waist belt body can be reduced, the possibility of pollution of the waist belt body by the sweat can be reduced, in addition, the annular sub-patch is matched with the annular main patch, the waist belt body is connected with the annular water absorption layer, after the annular water absorption layer is saturated by water, the annular water absorption layer can be detached and replaced without replacing the waist, can reduce the times of replacing the waist belt body and is beneficial to the repeated use of the waist belt body.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a composite absorbent core, a process for producing the core and a child diaper according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a composite absorbent core according to an embodiment of the present application;

FIG. 3 is a schematic structural view of the attachment of a center panel to an outer panel according to an embodiment of the present application;

FIG. 4 is a schematic illustration of a construction of a waist belt according to an embodiment of the present application;

FIG. 5 is a schematic diagram of the structure at A in FIG. 4 according to an embodiment of the present application;

fig. 6 is a schematic view of a construction of a crotch belt body according to an embodiment of the present application;

fig. 7 is a schematic structural view of a connection belt body according to an embodiment of the present application;

fig. 8 is a schematic structural view of the inside of the lower connection part according to an embodiment of the present application.

Icon: 100-a central fabric body; 110-a first polymer water-absorbing layer; 120-a second polymer water-absorbing layer; 130-upper cloth; 140-lower layer cloth body; 150-fault; 200-outer layer cloth body; 210-a third polymer water-absorbing layer; 220-a fourth polymer water-absorbing layer; 300-glue layer; 400-a lumbar belt body; 410-an inner belt body; 411-first female patch; 412-cyclic female patch; 420-an outer belt body; 421-a second female patch; 430-a support belt body; 440-a joining zone; 500-a crotch-portion belt body; 510-a crotch layer; 600-connecting the belt body; 610-an upper connection; 611-a first sub-patch; 612-a second sub-patch; 620-lower connection; 621-sealing ring; 622-water barrier; 623-a water absorbing strip; 700-annular water-absorbing layer; 710-ring-shaped water-proof cloth; 720-ring-shaped water-absorbing cloth; 730-Ring daughter Patch; 740-Water absorbent support.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

A composite absorbent core according to an embodiment of the first aspect of the present application is described below with reference to the drawings.

As shown in fig. 1-8, a composite absorbent core according to embodiments of the present application includes: a central fabric body 100 and an outer fabric body 200.

The upper end face and the lower end face of the central cloth body 100 are respectively provided with a first macromolecule water-absorbing layer 110 and a second macromolecule water-absorbing layer 120, the upper end face of the first macromolecule water-absorbing layer 110 is provided with an upper cloth body 130, the lower end face of the second macromolecule water-absorbing layer 120 is provided with lower cloth bodies 140 at intervals, and a fault 150 is formed between every two adjacent lower cloth bodies 140;

the outer cloth 200 is wrapped on the surfaces of the upper cloth 130 and the lower cloth 140, a third polymer water-absorbing layer 210 is arranged between the outer cloth 200 and the upper cloth 130, and a fourth polymer water-absorbing layer 220 is arranged between the outer cloth 200 and the lower cloth 140.

The structural principle of a composite absorbent core according to one embodiment of the present application is described below with reference to the accompanying drawings.

Firstly, the upper cloth 130 is used as the inner lining of the diaper, the lower cloth 140 is used as the outer lining of the diaper, and the first polymer water-absorbing layer 110 and the third polymer water-absorbing layer 210 on the surface of the upper cloth 130 can firstly absorb urine;

after the first polymer water-absorbing layer 110 and the third polymer water-absorbing layer 210 absorb water to saturation, urine can permeate from the central cloth 100 to the second polymer water-absorbing layer 120;

the cross-sections 150 are arranged between the lower cloth 140 at intervals, so that urine can be uniformly diffused in the layers of the second polymer water absorption layer 120 and the fourth polymer water absorption layer 220, and the purpose of urine absorption is achieved.

From this, according to a compound absorption core of this application embodiment, absorb the urine through first polymer layer 110 that absorbs water, second polymer layer 120 that absorbs water, third polymer layer 210 that absorbs water and fourth polymer layer 220 that absorbs water absorb the urine, can bear the urine of more components, reduce the possibility of urine seepage, in addition, set up fault 150, can make the urine even in the second polymer layer 120 that absorbs water and the aspect internal diffusion of fourth polymer layer 220 that absorbs water, can more stabilize more even absorption liquid, avoid partial position to absorb too saturated, lead to the possibility of liquid seepage.

In addition, the composite absorption core according to the embodiment of the application also has the following additional technical characteristics:

according to some embodiments of the present application, as shown in fig. 2 and fig. 3, the side edges of the outer fabric body 200 are connected by bonding, and the joint between the outer fabric body 200 and the third polymer water-absorbing layer 210 and the joint between the outer fabric body 200 and the fourth polymer water-absorbing layer 220 are both provided with glue layers 300, where the glue layers 300 are hot melt glue, and the glue layers 300 are connected with each other by bonding.

According to some embodiments of the present application, as shown in fig. 2 and fig. 3, the first polymer water-absorbing layer 110, the second polymer water-absorbing layer 120, the third polymer water-absorbing layer 210 and the fourth polymer water-absorbing layer 220 are all polymer water-absorbing resin layers, and in practical implementation, the polymer water-absorbing resin layers are composed of a plurality of polymer water-absorbing resin particles, and the polymer water-absorbing resin particles can absorb hundreds times, even thousands times, of their own weight of water and have strong water retention capacity.

According to some embodiments of the present disclosure, as shown in fig. 2 and 3, the central fabric body 100, the upper fabric body 130, the lower fabric body 140, and the outer fabric body 200 are all nonwoven fabrics, and the nonwoven fabrics are any one of heat-seal nonwoven fabrics, bulky nonwoven fabrics, and spunlace nonwoven fabrics.

It can be understood that the cross-sections 150 are disposed at equal intervals along the length direction of the central cloth 100, and the arrangement of the cross-sections 150 is beneficial to the diffusion of urine in the lower cloth 140, so that the urine can be distributed more uniformly in the lower cloth 140.

It should be noted that the outer layer cloth 200 is located below the fourth polymer water-absorbing layer 220, and two sides of the outer layer cloth 200 are folded above the third polymer water-absorbing layer 210 and then bonded together, and the fourth polymer water-absorbing layer 220 and the third polymer water-absorbing layer 210 can be wrapped together by the outer layer cloth 200.

A process for producing a core according to an embodiment of the second aspect of the present application, comprising a composite absorbent core according to an embodiment of the first aspect of the present application, and the steps of:

the method comprises the following steps: spraying glue on the edge of the central cloth body 100 by using a glue spraying device, and reserving a part which is not sprayed with glue;

step two: respectively moving the upper cloth body 130 and the lower cloth body 140 on the upper end surface and the lower end surface of the central cloth body 100, and bonding the edge of the upper cloth body 130 and the edge of the lower cloth body 140 with the edge of the central cloth body 100;

step three: high polymer water-absorbing particles are filled between the central cloth body 100 and the upper cloth body 130 and between the central cloth body 100 and the lower cloth body 140, so that a first high polymer water-absorbing layer 110 is formed between the central cloth body 100 and the upper cloth body 130, and a second high polymer water-absorbing layer 120 is formed between the central cloth body 100 and the lower cloth body 140;

step four: spraying glue to the part of the central cloth body 100 which is not sprayed with glue, and bonding the central cloth body 100 with the upper layer cloth body 130 and the lower layer cloth body 140;

step five: spraying glue on the edge of the outer layer cloth body 200 by using a glue spraying device, and reserving a part without spraying glue;

step six: coating the outer layer cloth body 200 on the surfaces of the upper layer cloth body 130 and the lower layer cloth body 140, and bonding the edge of the outer layer cloth body 200, the edge of the upper layer cloth body 130, the edge of the outer layer cloth body 200 and the edge of the lower layer cloth body 140 together;

step seven: high-molecular water-absorbing particles are filled between the outer-layer cloth body 200 and the upper-layer cloth body 130 and between the outer-layer cloth body 200 and the lower-layer cloth body 140, so that a third high-molecular water-absorbing layer 210 is formed between the outer-layer cloth body 200 and the upper-layer cloth body 130, and a fourth high-molecular water-absorbing layer 220 is formed between the outer-layer cloth body 200 and the lower-layer cloth body 140;

step eight: and spraying glue to the glue-sprayed part of the outer layer cloth body 200, and bonding the outer layer cloth body 200 with the upper layer cloth body 130 and the lower layer cloth body 140 to obtain the composite absorbent core.

As shown in fig. 1 to 8, a child diaper according to an embodiment of the third aspect of the present application includes a composite absorbent core according to an embodiment of the first aspect of the present application, a waist belt 400 and a crotch belt 500, the composite absorbent core is disposed in the crotch belt 500, and two ends of the crotch belt 500 are connected to the waist belt 400 through a connecting belt 600, in particular, urine of a child can be absorbed by the composite absorbent core in the crotch belt 500.

Preferably, the crotch belt body 500 is composed of two crotch fabric layers 510, the composite absorbent core is disposed between the two crotch fabric layers 510, the side edges of the two crotch fabric layers 510 are thermally bonded and fixed, and the crotch fabric layer 510 is a nonwoven fabric layer.

When the child diaper absorbs urine, the urine is absorbed by the absorption core body in the crotch region, the waist region of the child diaper is mainly used for supporting the crotch region and does not need to absorb the urine, the crotch region and the waist region can be integrally replaced when the traditional diaper is replaced, the waist region of the diaper cannot be reused, waste is caused, the use cost is increased, and if the urine in the crotch region permeates into the waist region, the waist region is polluted, and the repeated use of the waist region is not facilitated;

according to some embodiments of the present application, as shown in fig. 1, 4, 5 and 7, the waist belt 400 includes an inner belt 410 and two outer belts 420, two outer belts 420 are provided, one side of each of the two outer belts 420 is fixedly connected to the inner belt 410 through a support belt 430, a connection area 440 is formed between the two support belts 430, the connection belt 600 is detachably installed in the connection area 440, in a specific implementation, the connection belt 600 is detachably installed in the connection area 440 on the surface of the waist belt 400, when urine exists inside and outside the crotch belt 500, the crotch belt 500 with urine and the connection belt 600 connected thereto are detached from the surface of the waist belt 400, and then an unused crotch belt 500 is installed on the surface of the waist belt 400 and then used again, the waist belt 400 can be reused, waste of the waist belt 400 is reduced, in addition, when the crotch belt body 500 is disassembled and replaced, the waist belt body 400 does not need to be disassembled and assembled, so that the operation steps are reduced, the discomfort of children caused by disassembling the waist belt body 400 can be reduced, and the use is facilitated; it can be understood that the connecting band body 600 includes an upper connecting portion 610 and a lower connecting portion 620, the bottom end of the upper connecting portion 610 is fixedly connected with the top end of the lower connecting portion 620, the upper connecting portion 610 is detachably mounted in the connecting region 440, the lower connecting portion 620 is connected to the crotch band body 500, and the upper connecting portion 610 and the lower connecting portion 620 can be fixed by adhesion; preferably, the upper connection part 610 includes a first sub patch 611 and a second sub patch 612, the first sub patch 611 and the second sub patch 612 are fixedly connected, the first female patch 411 is installed on the surface of the inner band body 410, the first female patch 411 is adhered to the first sub patch 611, the second female patch 421 is installed inside the outer band body 420, and the second female patch 421 is adhered to the second sub patch 612, when the connection band body 600 is disassembled, the second female patch 421 inside the outer band body 420 is separated from the second sub patch 612 by tearing the outer band body 420, and then the upper connection part 610 in the connection band body 600 is torn, so that the first sub patch 611 in the upper connection part 610 is separated from the first female patch 411 on the surface of the inner band body 410, thereby achieving the purpose of disassembling the connection band body 600, and when the upper connection part 610 in the connection band body 600 is installed in the connection area 440 on the surface of the waist band body 400, the upper connection part 610 in the connection band body 600 is fixed by the first female patch 411 and the second female patch 421, the connection between the connection belt body 600 and the waist belt body 400 can be made more stable.

According to some embodiments of the present application, as shown in fig. 1, 7 and 8, the lower connection portion 620 is a bag body having an opening, the lower connection portion 620 is sleeved on the surface of the crotch portion 500, a sealing ring 621 is disposed at the opening of the lower connection portion 620, an inner wall of the sealing ring 621 is fixedly connected to the crotch portion 500, a water barrier 622 is disposed inside the lower connection portion 620, water absorbing strips 623 are disposed on the surface of the water barrier 622 at intervals, and water storage grooves are formed between the water absorbing strips 623, when urine inside the crotch portion 500 diffuses to the connection portion 600 and the waist portion 400, the water barrier 622 inside the lower connection portion 620 can block the movement of the urine, reduce the diffusion of the urine to the waist portion 400, reduce the pollution of the urine to the waist portion 400, and facilitate the reuse of the waist portion 400, and further, the arrangement of the water absorbing strips 623 facilitates the absorption of the urine diffused to the end of the crotch portion 500, the sealing ring 621 is arranged to reduce leakage of urine and reduce the possibility of pollution of the urine to the external environment.

Preferably, the waterproof layer 622 is a moisture-proof waterproof cloth layer laid inside the lower connecting portion 620, the water absorbing strip 623 is any one of a sponge strip and a water absorbing cotton strip, the water absorbing strip 623 is fixedly connected with the crotch belt body 500, and the water absorbing strip 623 and the crotch belt body 500 can be fixed in an adhesion manner.

It should be noted that, the composite absorbent core composed of the first polymer water-absorbent layer 110, the second polymer water-absorbent layer 120, the third polymer water-absorbent layer 210 and the fourth polymer water-absorbent layer 220 can bear more amount of urine, and can reduce the leakage of urine, after the crotch belt body 500 and the composite absorbent core therein absorb urine, even if a child rolls on the bed, the urine is not easy to leak, and the possibility of urine permeating into the bed can be reduced, so that the possibility of urine contaminating the bed on the surface of the waist belt body 400 can be reduced, the possibility of urine contaminating the waist belt body 400 can be reduced, and the reuse of the waist belt body 400 is facilitated.

Sweat is easily generated on the skin surface of the child, and the sweat easily pollutes the waist area of the child diaper, so that the repeated use of the waist area of the child diaper is not facilitated;

according to some embodiments of the present application, as shown in fig. 1, 4 and 5, an annular water absorbing layer 700 is disposed inside the waist belt body 400, and the annular water absorbing layer 700 includes an annular water-insulating cloth 710 and an annular water absorbing cloth 720, an annular sub-patch 730 is disposed outside the annular water-insulating cloth 710, an annular female patch 412 is disposed inside the inner belt body 410, the annular sub-patch 730 is adhered to the annular female patch 412, the annular water absorbing cloth 720 is disposed inside the annular water-insulating cloth 710, and a water absorbing support 740 is disposed between the annular water absorbing cloth 720 and the annular water-insulating cloth 710, in a specific implementation, sweat generated on the skin surface of the child by the annular water absorbing cloth 720 is contacted with the skin of the child, and the annular water absorbing cloth 720 and the water absorbing support 740 can absorb the sweat, while the annular water-insulating cloth 710 can block the flow of sweat, reduce the flow of sweat to the waist belt body 400, and reduce the possibility of the sweat on the skin surface of the child polluting the waist belt body 400, do benefit to the belt body 400 used repeatedly of waist, in addition, add the supporter 740 that absorbs water, this supporter 740 that absorbs water can support cyclic annular water-proof cloth 710, can increase cyclic annular water-proof cloth 710 and the distance between belt body 400 and the children's skin, can reduce the sweat on children's skin surface and the possibility of belt body 400 contact, can reduce the possibility that belt body 400 is polluted by sweat, and, through cyclic annular son paster 730 and the cooperation of cyclic annular female paster 412, link together belt body 400 and cyclic annular layer 700 that absorbs water, absorb water the saturation back at cyclic annular layer 700, can dismantle the change to cyclic annular layer 700 that absorbs water, and need not to change belt body 400, can reduce the number of times that belt body 400 changed, do benefit to the used repeatedly of belt body 400.

Preferably, at least two water-absorbing support bodies 740 are equidistantly arranged along the circumferential direction of the annular water-absorbing cloth 720, and the water-absorbing support bodies 740 are cylindrical water-absorbing cotton bodies.

A composite absorbent core, a process for producing the core, and other components and operations of a pant diaper according to embodiments of the present application are known to those skilled in the art and will not be described in detail herein.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The above-described apparatus embodiments are merely illustrative.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.