Paper diaper with fluffy non-woven fabric core body in net structure and preparation process of paper diaper

Abstract

The invention relates to the field of disposable hygienic products, in particular to a paper diaper with a fluffy non-woven fabric core body of a net structure and a preparation process of the paper diaper, and mainly solves the problems that in the prior art, macromolecular water-absorbent resin particles of an online water-absorbent paper core body are difficult to enter fluffy non-woven fabric, and the strength is poor. The paper diaper body comprises a liquid-permeable surface layer, an absorption core layer and a liquid-tight bottom layer which are sequentially stacked from top to bottom; the absorption core layer comprises a first fluffy non-woven fabric, a second fluffy non-woven fabric compounded on the lower surface of the first fluffy non-woven fabric and macromolecular water-absorbent resin particles laid on the upper surface of the first fluffy non-woven fabric; at least two material storage areas are arranged on the first fluffy non-woven fabric side by side in the transverse direction, holes are punched or embossed on the first fluffy non-woven fabric in each material storage area, and the macromolecular water-absorbent resin particles comprise first macromolecular water-absorbent resin particles which are distributed in each material storage area.

Description

Technical Field

[0001] The invention relates to the field of disposable sanitary products, and in particular to a diaper with a net-like fluffy non-woven core and a preparation process thereof. Background Art

[0002] With the continuous development and improvement of diaper core technology, some diaper manufacturers have gradually used online absorbent paper cores. The online absorbent paper cores are produced by running the production line of absorbent paper cores in parallel with the production line of diapers, that is, the produced absorbent paper cores are directly transferred to the production line of diapers for application. However, the online absorbent paper cores have the problem that the polymer absorbent resin particles are difficult to enter the interior of the fluffy non-woven fabric, and the core strength of the online absorbent paper is weaker than that of the off-line absorbent paper core. Summary of the invention

[0003] Therefore, in view of the above problems, the present invention provides a diaper with a net-structured fluffy cloth core and a preparation process thereof, which mainly solves the problem in the prior art that the polymer absorbent resin particles of the online absorbent paper core are difficult to enter the interior of the fluffy non-woven fabric and have poor strength.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A diaper with a net-like structure and a fluffy non-woven fabric core, comprising a diaper body, wherein the longitudinal direction extending along the length direction of the diaper body is defined as a longitudinal direction, and the transverse direction extending along the width direction of the diaper body is defined as a transverse direction, wherein the diaper body has a front waist region and a rear waist region distributed on both sides of the longitudinal direction, and a crotch region distributed between the front waist region and the rear waist region, wherein the diaper body comprises a liquid-permeable surface layer, an absorbent core layer, and a liquid-impermeable bottom layer stacked in sequence from top to bottom;

[0006] The absorbent core layer has first side edges distributed on both sides of the longitudinal direction and second side edges distributed on both sides of the transverse direction, and the absorbent core layer includes a first fluffy non-woven fabric, a second fluffy non-woven fabric composited on the lower surface of the first fluffy non-woven fabric, and high molecular water-absorbing resin particles laid on the upper surface of the first fluffy non-woven fabric;

[0007] At least two material storage areas are arranged side by side in the transverse direction on the first fluffy non-woven fabric, and each of the material storage areas is distributed in the longitudinal direction. The first fluffy non-woven fabric at each of the material storage areas is punched with holes or embossed. The polymer water-absorbing resin particles include first polymer water-absorbing resin particles, and the first polymer water-absorbing resin particles are distributed in each material storage area. A first composite area is provided on the first fluffy non-woven fabric and located between two adjacent material storage areas. A second composite area is provided on the first fluffy non-woven fabric and located on the lateral outer sides of the material storage areas on both lateral sides. A glue layer is applied on the lower surface of the first fluffy non-woven fabric at the first composite area and the second composite area or on the upper surface of the second fluffy non-woven fabric and opposite to the first composite area and the second composite area. The first fluffy non-woven fabric and the second fluffy non-woven fabric are compositely connected through the glue layer.

[0008] Furthermore, the number of the material storage areas is four.

[0009] Furthermore, the polymer water-absorbing resin particles also include second polymer water-absorbing resin particles, and the second polymer water-absorbing resin particles are distributed on the upper surface of the first fluffy non-woven fabric and are located in the first composite area and the second composite area.

[0010] Furthermore, the diaper body also includes an outer garment layer, which includes a first non-woven fabric, a second non-woven fabric and an elastic rubber band arranged between the first non-woven fabric and the second non-woven fabric. The two lateral edges of the outer garment layer located in the front waist area are welded and fixed to the two lateral edges of the outer garment layer located in the rear waist area, so that the outer garment layer has a waist opening and a leg opening. The elastic rubber band includes a first waist elastic rubber band distributed in the front waist area, a first elastic rubber band extending from the front waist area to the crotch area and distributed around the leg opening, a second waist elastic rubber band distributed in the rear waist area, and a second elastic rubber band extending from the rear waist area to the crotch area and distributed around the leg opening.

[0011] Furthermore, a first point-break area is provided on the front waist region and located in the area covered by the liquid-impermeable bottom layer, and the first point-break area is not provided with a first waist elastic rubber band. A second point-break area is provided on the back waist region and located in the area covered by the liquid-impermeable bottom layer, and the second point-break area is not provided with a second waist elastic rubber band. A third point-break area is provided on the crotch region, and the third point-break area is not provided with the first elastic rubber band and the second elastic rubber band.

[0012] Furthermore, the longitudinal length of the first nonwoven fabric is 80 mm to 160 mm longer than that of the second nonwoven fabric, so that the first nonwoven fabric has extensions on both longitudinal sides, and the extensions are folded upward and inward and composited on the upper surface of the second nonwoven fabric.

[0013] Furthermore, the liquid-permeable surface layer includes a hydrophilic nonwoven fabric covering the absorbent core layer, a hydrophobic nonwoven fabric arranged on both lateral sides of the hydrophilic nonwoven fabric, and a leg elastic band arranged on the free end of the hydrophobic nonwoven fabric, and a leak-proof partition is formed by the leg elastic band and the hydrophobic nonwoven fabric.

[0014] A process for preparing a diaper with a net-like structure and a fluffy non-woven core, which is used to prepare the above-mentioned diaper with a net-like structure and a fluffy non-woven core, is characterized in that it comprises the following steps:

[0015] 1) preparing a liquid-permeable surface layer;

[0016] 2) Preparation of absorbent core layer:

[0017] a) unwinding and conveying a first fluffy nonwoven fabric in a roll form, wherein a direction extending along the unwinding direction of the first fluffy nonwoven fabric is defined as a longitudinal direction, and a direction extending along the width direction of the first fluffy nonwoven fabric is defined as a transverse direction;

[0018] b) continuously punching holes or pressing embossing in the longitudinal direction on the upper surface of the first fluffy nonwoven fabric, the punched or embossed area forms a material storage area, the number of the material storage areas is at least two, and they are distributed side by side in the transverse direction, a first composite area is provided on the first fluffy nonwoven fabric and located between two adjacent material storage areas, and a second composite area is provided on the first fluffy nonwoven fabric and located on the transverse sides of the material storage areas on the transverse outer sides;

[0019] c) unwinding and conveying the second fluffy nonwoven fabric in a roll form, and continuously applying a glue layer on the lower surface of the first fluffy nonwoven fabric at the first composite area and the second composite area or on the upper surface of the second fluffy nonwoven fabric and opposite to the first composite area and the second composite area;

[0020] d) compositely connecting the first fluffy non-woven fabric and the second fluffy non-woven fabric through a glue layer;

[0021] e) folding the product of step d) into a box and transferring it;

[0022] f) continuously conveying the product of step e), applying first polymer water-absorbent resin particles to the storage area on the upper surface of the first fluffy non-woven fabric, and then separating the polymer water-absorbent resin particles by a cotton brush, so that the first polymer water-absorbent resin particles are uniformly and concentratedly accumulated in the punched or embossed space;

[0023] 3) preparing a liquid-impermeable bottom layer;

[0024] 4) laminating the liquid-permeable surface layer, the absorbent core layer and the liquid-impermeable bottom layer in sequence from top to bottom;

[0025] 5) Cutting the product of step 4) into individual diaper bodies.

[0026] By adopting the above-mentioned technical scheme, the beneficial effects of the present invention are as follows: the net-structured fluffy non-woven fabric core diaper is provided with at least two storage areas side by side in the transverse direction on the first fluffy non-woven fabric, the first fluffy non-woven fabric at each storage area is perforated or embossed, the first polymer water-absorbing resin particles are distributed in each storage area, and the first composite area located between two adjacent storage areas and the second composite area located on the lateral outer side of the storage areas on both sides of the lower surface of the first fluffy non-woven fabric or the glue layer applied on the upper surface of the second fluffy non-woven fabric and opposite to the first composite area and the second composite area is used for bonding with the second fluffy non-woven fabric The first composite area and the second composite area are composited to make the first polymer water-absorbing resin particles evenly and concentratedly accumulated in the perforated or embossed space, so that the polymer area forms a fixed protrusion shape after the product is used, and the first polymer water-absorbing resin particles are conveniently embedded in the fluffy non-woven fabric to avoid leakage of the polymer water-absorbing resin particles. When absorbing water, the first composite area and the second composite area provide more expansion space, so that the polymer water-absorbing resin particles in the absorption core layer can be fully absorbed to avoid agglomeration, thereby improving the strength of the fluffy non-woven fabric, and improving the absorption efficiency and absorption amount. At the same time, the first composite area and the second composite area can form a diversion channel to improve the diffusion efficiency of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the structure of the diaper body in the unfolded state, viewed from above, according to an embodiment of the present invention;

[0028] Figure 2 is a schematic diagram of a top view of the structure of a first fluffy non-woven fabric in an embodiment of the present invention;

[0029] Figure 3 is a schematic diagram of a top view of the structure of a second fluffy non-woven fabric in an embodiment of the present invention;

[0030] Figure 4 1 is a schematic diagram of the bottom view of the structure of the first fluffy non-woven fabric in an embodiment of the present invention;

[0031] Figure 5 yes Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle;

[0032] Figure 6 is a schematic structural diagram of another state of the diaper body according to an embodiment of the present invention;

[0033] Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure at the middle BB;

[0034] Figure 8 yes Figure 6 Schematic diagram of the cross-sectional structure at CC in the middle. DETAILED DESCRIPTION

[0035] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0036] The embodiments of the present invention are:

[0037] refer to Figures 1 to 5 As shown, a diaper with a net-like structure and a fluffy non-woven core body comprises a diaper body 1, wherein the longitudinal direction is defined as the longitudinal direction, and the transverse direction is defined as the width direction of the diaper body 1. The diaper body 1 comprises a front waist region 101 and a rear waist region 102 distributed on both sides of the longitudinal direction, and a crotch region 103 distributed between the front waist region 101 and the rear waist region 102. The diaper body 1 comprises a liquid-permeable surface layer 11, an absorbent core layer 12, and a liquid-impermeable bottom layer 13 which are sequentially stacked from top to bottom.

[0038] The absorbent core layer 12 has first side edges distributed on both sides in the longitudinal direction and second side edges distributed on both sides in the transverse direction, and the absorbent core layer 12 includes a first fluffy non-woven fabric 121, a second fluffy non-woven fabric 122 composited on the lower surface of the first fluffy non-woven fabric 121, and polymer water-absorbing resin particles laid on the upper surface of the first fluffy non-woven fabric 121;

[0039] At least two storage areas 2 are arranged side by side in the transverse direction on the first fluffy non-woven fabric 121. Preferably, the number of the storage areas 2 is four, and each of the storage areas 2 is distributed in the longitudinal direction. The first fluffy non-woven fabric 121 at each of the storage areas 2 is perforated or embossed, preferably embossed. The polymer water-absorbing resin particles include first polymer water-absorbing resin particles, which are distributed in each storage area 2. The first fluffy non-woven fabric 121 is located between two adjacent storage areas 2. A first composite area 3 is provided, and a second composite area 4 is provided on the first fluffy non-woven fabric 121 and on the lateral outer side of the storage area 2 on both lateral sides. A glue layer is applied on the lower surface of the first fluffy non-woven fabric 121 at the first composite area 3 and the second composite area 4 or on the upper surface of the second fluffy non-woven fabric 122 and opposite to the first composite area 3 and the second composite area 4. The first fluffy non-woven fabric 121 and the second fluffy non-woven fabric 122 are compositely connected by the glue layer, and the second fluffy non-woven fabric 122 is a plain fluffy fabric.

[0040] The net-structured fluffy nonwoven core diaper is characterized in that at least two storage areas 2 are arranged side by side in the transverse direction on the first fluffy nonwoven fabric 121, holes are punched or embossed on the first fluffy nonwoven fabric 121 at each storage area 2, first polymer water-absorbing resin particles are distributed in each storage area 2, and a first composite area 3 located between two adjacent storage areas 2 and a second composite area 4 located on the transverse outer side of the storage areas 2 on both sides on the lower surface of the first fluffy nonwoven fabric 121 or a glue layer is applied on the upper surface of the second fluffy nonwoven fabric 122 and opposite to the first composite area 3 and the second composite area 4, which is used for composite with the second fluffy nonwoven fabric 122. The first composite area 3 and the second composite area 4 provide more expansion space when absorbing water, so that the polymer water absorbent resin particles in the absorption core layer 12 can be fully absorbed and avoid agglomeration, thereby improving the strength of the fluffy non-woven fabric, and improving the absorption efficiency and absorption amount. At the same time, the first composite area 3 and the second composite area 4 can form a diversion channel to improve the diffusion efficiency of the liquid.

[0041] In addition, the polymer water-absorbent resin particles also include second polymer water-absorbent resin particles, which are distributed on the upper surface of the first fluffy non-woven fabric 121 and are located in the first composite area 3 and the second composite area 4. The gram weight of the second polymer water-absorbent resin particles is less than the gram weight of the first polymer water-absorbent resin particles. Such a design can increase the absorption capacity of the absorption core layer and fully ensure that the polymer water-absorbent resin particles can be embedded in the fluffy non-woven fabric.

[0042] In this embodiment, the diaper body 1 also includes an outer clothing layer 14, the outer clothing layer 14 includes a first non-woven fabric 141, a second non-woven fabric 142 and an elastic elastic band arranged between the first non-woven fabric 141 and the second non-woven fabric 142, and the lateral sides of the outer clothing layer 14 located in the front waist area 101 are welded and fixed to the lateral sides of the outer clothing layer 14 located in the rear waist area 102, so that the outer clothing layer 14 has a waist opening and a leg opening 5, and the elastic elastic band includes a first waist elastic elastic band 143 distributed in the front waist area 101, a first elastic elastic band 144 extending from the front waist area 101 to the crotch area 103 and distributed on the side of the leg opening 5, a second waist elastic elastic band 145 distributed in the rear waist area 102, and a second waist elastic elastic band 146 extending from the rear waist area 102 to the crotch area 103 and distributed A second elastic rubber band 146 is provided on the peripheral side of the leg opening 5, a first dotted area 6 is provided on the front waist area 101 and located in the area covered by the liquid-impermeable bottom layer 13, and the first dotted area 6 is not provided with a first waist elastic rubber band 143, a second dotted area 7 is provided on the back waist area 102 and located in the area covered by the liquid-impermeable bottom layer 13, and the second dotted area 7 is not provided with a second waist elastic rubber band 145, and a third dotted area 8 is provided on the crotch area 103, and the third dotted area 8 is not provided with a first elastic rubber band 144 and a second elastic rubber band 146, thereby improving the fit between the outer clothing layer 14 and the user and improving the comfort of the waist area, and through the provision of the first elastic rubber band 144 and the second elastic rubber band 146, the peripheral side of the leg opening 5 can fit the user's crotch, thereby improving the effect of preventing side leakage.

[0043] At the same time, reference Figures 6 to 8As shown in the figure, the longitudinal length of the first non-woven fabric 141 is 80 mm to 160 mm longer than the longitudinal length of the second non-woven fabric 142, preferably 130 mm, so that the first non-woven fabric 141 has extensions 9 on both sides in the longitudinal direction, and the extensions 9 are folded upward and inward and composited on the upper surface of the second non-woven fabric 142. The liquid-permeable surface layer 11 includes a hydrophilic non-woven fabric 111 covering the absorbent core layer 12, and a hydrophilic non-woven fabric 111 is provided on both sides in the transverse direction. The hydrophobic nonwoven fabric 112 and the leg elastic band 113 arranged on the free end of the hydrophobic nonwoven fabric 112 form a leakproof edge through the leg elastic band 113 and the hydrophobic nonwoven fabric 112. A first bonding area 201 is arranged between the longitudinal middle part of the hydrophobic nonwoven fabric 112 and the liquid-impermeable bottom layer 13. The longitudinal length dimension of the first bonding area 201 is equal to the longitudinal length dimension of the leg elastic band 113. The longitudinal sides of the hydrophobic nonwoven fabric 112 and the liquid-impermeable bottom layer 13 are connected to each other. A second bonding area 202 is provided between the first bonding area 201, the lateral width dimension of the first bonding area 201 is greater than the lateral width dimension of the second bonding area 22, which has a better anti-side leakage efficiency, a third bonding area 203 is provided between the longitudinal side edges of the hydrophobic non-woven fabric 112 and the hydrophilic non-woven fabric 111, so that a first accommodating cavity 100 is formed on the longitudinal sides of the leak-proof partition, a fourth bonding area 204 is provided between the extension part 9 and the longitudinal side edges of the hydrophilic non-woven fabric 111, a fifth bonding area 205 is provided between the extension part 9 and the upper surface of the hydrophobic non-woven fabric 112, the free end of the extension part 9 is not bonded to the hydrophilic non-woven fabric 111, so that a second accommodating cavity 200 is formed between the extension part 9 and the hydrophilic non-woven fabric 111, the first accommodating cavity 100 is connected with the second accommodating cavity 200, so that front and rear leakage can be prevented, and the formed first accommodating cavity 100 and second accommodating cavity 200 can form a storage function in the case of defecation, thereby improving the convenience of use.

[0044] A process for preparing a diaper with a net-like structure and a fluffy non-woven core, which is used to prepare the above-mentioned diaper with a net-like structure and a fluffy non-woven core, is characterized in that it comprises the following steps:

[0045] 1) preparing a liquid-permeable surface layer 11;

[0046] 2) Preparation of absorbent core layer 12:

[0047] a) unwinding and conveying the first fluffy nonwoven fabric 121 in a roll, wherein the direction extending along the unwinding direction of the first fluffy nonwoven fabric 121 is defined as the longitudinal direction, and the direction extending along the width direction of the first fluffy nonwoven fabric 121 is defined as the transverse direction;

[0048] b) continuously punching holes or pressing embossing in the longitudinal direction on the upper surface of the first fluffy nonwoven fabric 121, the punching or embossing area forms a material storage area 2, the number of the material storage areas 2 is at least two, and they are distributed side by side in the transverse direction, a first composite area 3 is provided on the first fluffy nonwoven fabric 121 and located between two adjacent material storage areas 2, and a second composite area 4 is provided on the first fluffy nonwoven fabric 121 and located on the transverse outer sides of the material storage areas 2 on both sides;

[0049] c) unwinding and conveying the rolled second fluffy nonwoven fabric 122, and continuously applying a glue layer on the lower surface of the first fluffy nonwoven fabric 121 at the first composite area 3 and the second composite area 4 or on the upper surface of the second fluffy nonwoven fabric 122 and opposite to the first composite area 3 and the second composite area 4;

[0050] d) Composite connecting the first fluffy non-woven fabric 121 and the second fluffy non-woven fabric 122 through a glue layer;

[0051] e) folding the product of step d) into a box and transferring it;

[0052] f) continuously conveying the product of step e), applying first polymer water-absorbing resin particles to the storage area 2 on the upper surface of the first fluffy non-woven fabric 121, and then separating the first polymer water-absorbing resin particles by a cotton brush, so that the first polymer water-absorbing resin particles are evenly and concentratedly accumulated in the punched or embossed space;

[0053] 3) preparing a liquid-impermeable bottom layer 13;

[0054] 4) laminating the liquid-permeable surface layer 11, the absorbent core layer 12 and the liquid-impermeable bottom layer 13 in sequence from top to bottom;

[0055] 5) Cutting the product of step 4) into individual diaper bodies.

[0056] The preparation process is simple and has high production efficiency. By preparing the first fluffy non-woven fabric 121 and the second fluffy non-woven fabric 122 off-line and compounding them, the hole type change of the first fluffy non-woven fabric 121 during the use of the diaper equipment can be effectively reduced, so that in the subsequent application of the first high molecular water absorbent resin particles, the first high molecular water absorbent resin particles are easily embedded, and the distribution uniformity of the first high molecular water absorbent resin particles in the storage area is greatly guaranteed.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A diaper with a net-like fluffy non-woven core, characterized in that: The diaper body comprises a diaper body, wherein the longitudinal direction is defined as the longitudinal direction, and the width direction is defined as the transverse direction. The diaper body comprises a front waist region and a rear waist region distributed on both sides of the longitudinal direction, and a crotch region distributed between the front waist region and the rear waist region. The diaper body comprises a liquid-permeable surface layer, an absorbent core layer, and a liquid-impermeable bottom layer which are sequentially stacked from top to bottom. The absorbent core layer has first side edges distributed on both sides of the longitudinal direction and second side edges distributed on both sides of the transverse direction, and the absorbent core layer includes a first fluffy non-woven fabric, a second fluffy non-woven fabric composited on the lower surface of the first fluffy non-woven fabric, and high molecular water-absorbing resin particles laid on the upper surface of the first fluffy non-woven fabric; At least two material storage areas are arranged side by side in the transverse direction on the first fluffy non-woven fabric, and each of the material storage areas is distributed in the longitudinal direction. The first fluffy non-woven fabric at each of the material storage areas is punched with holes or embossed. The polymer water-absorbing resin particles include first polymer water-absorbing resin particles, and the first polymer water-absorbing resin particles are distributed in each material storage area. A first composite area is provided on the first fluffy non-woven fabric and located between two adjacent material storage areas. A second composite area is provided on the first fluffy non-woven fabric and located on the lateral outer sides of the material storage areas on both lateral sides. A glue layer is applied on the lower surface of the first fluffy non-woven fabric at the first composite area and the second composite area or on the upper surface of the second fluffy non-woven fabric and opposite to the first composite area and the second composite area. The first fluffy non-woven fabric and the second fluffy non-woven fabric are compositely connected through the glue layer.

2. The diaper with a net-like structure and a fluffy nonwoven core according to claim 1, characterized in that: The number of the material storage areas is four.

3. The diaper with a net-like structure and a fluffy nonwoven core according to claim 1, characterized in that: The polymer water-absorbing resin particles further include second polymer water-absorbing resin particles, which are distributed on the upper surface of the first fluffy non-woven fabric and are located in the first composite area and the second composite area.

4. The diaper with a net-like structure and a fluffy nonwoven core according to any one of claims 1 to 3, characterized in that: The diaper body also includes an outer garment layer, which includes a first non-woven fabric, a second non-woven fabric and an elastic rubber band arranged between the first non-woven fabric and the second non-woven fabric. The two lateral edges of the outer garment layer located in the front waist area are welded and fixed to the two lateral edges of the outer garment layer located in the back waist area, so that the outer garment layer has a waist opening and a leg opening. The elastic rubber band includes a first waist elastic rubber band distributed in the front waist area, a first elastic rubber band extending from the front waist area to the crotch area and distributed around the leg opening, a second waist elastic rubber band distributed in the back waist area, and a second elastic rubber band extending from the back waist area to the crotch area and distributed around the leg opening.

5. The diaper with a net-like structure and a fluffy nonwoven core according to claim 4, characterized in that: A first point-break area is provided on the front waist region and located at the liquid-impermeable bottom layer covering area, and the first point-break area is not provided with a first waist elastic rubber band. A second point-break area is provided on the back waist region and located at the liquid-impermeable bottom layer covering area, and the second point-break area is not provided with a second waist elastic rubber band. A third point-break area is provided on the crotch region, and the third point-break area is not provided with a first elastic rubber band and a second elastic rubber band.

6. The diaper with a net-like structure and a fluffy nonwoven core according to claim 5, characterized in that: The longitudinal length of the first nonwoven fabric is 80 mm to 160 mm longer than that of the second nonwoven fabric, so that the first nonwoven fabric has extensions on both longitudinal sides, which are folded upward and inward and composited on the upper surface of the second nonwoven fabric.

7. The diaper with a net-like structure and a fluffy nonwoven core according to claim 6, characterized in that: The liquid-permeable surface layer includes a hydrophilic nonwoven fabric covering the absorbent core layer, a hydrophobic nonwoven fabric arranged on both lateral sides of the hydrophilic nonwoven fabric, and a leg elastic band arranged on the free end of the hydrophobic nonwoven fabric, and a leakproof partition is formed by the leg elastic band and the hydrophobic nonwoven fabric.

8. A process for preparing a diaper with a net-like structure and a fluffy non-woven fabric core, used for preparing the diaper with a net-like structure and a fluffy non-woven fabric core according to claim 1, characterized in that: The following steps are involved: 1) preparing a liquid-permeable surface layer; 2) Preparation of absorbent core layer: a) unwinding and conveying a first fluffy nonwoven fabric in a roll form, wherein a direction extending along the unwinding direction of the first fluffy nonwoven fabric is defined as a longitudinal direction, and a direction extending along the width direction of the first fluffy nonwoven fabric is defined as a transverse direction; b) continuously punching holes or pressing embossing in the longitudinal direction on the upper surface of the first fluffy nonwoven fabric, the punched or embossed area forms a material storage area, the number of the material storage areas is at least two, and they are distributed side by side in the transverse direction, a first composite area is provided on the first fluffy nonwoven fabric and located between two adjacent material storage areas, and a second composite area is provided on the first fluffy nonwoven fabric and located on the transverse sides of the material storage areas on the transverse outer sides; c) unwinding and conveying the second fluffy nonwoven fabric in a roll form, and continuously applying a glue layer on the lower surface of the first fluffy nonwoven fabric at the first composite area and the second composite area or on the upper surface of the second fluffy nonwoven fabric and opposite to the first composite area and the second composite area; d) compositely connecting the first fluffy non-woven fabric and the second fluffy non-woven fabric through a glue layer; e) folding the product of step d) into a box and transferring it; f) continuously conveying the product of step e), applying first polymer water-absorbent resin particles to the storage area on the upper surface of the first fluffy non-woven fabric, and then separating the polymer water-absorbent resin particles by a cotton brush, so that the first polymer water-absorbent resin particles are uniformly and concentratedly accumulated in the punched or embossed space; 3) preparing a liquid-impermeable bottom layer; 4) laminating the liquid-permeable surface layer, the absorbent core layer and the liquid-impermeable bottom layer in sequence from top to bottom; 5) Cutting the product of step 4) into individual diaper bodies.

Images