Paper diaper with elastic waistline capable of preventing rear leakage

Abstract

The paper diaper is provided with a front waist area, a crotch area and a rear waist area in the longitudinal direction and comprises a paper diaper body, and the paper diaper body comprises a liquid-permeable surface layer, a liquid-tight bottom layer and an absorber arranged between the liquid-permeable surface layer and the liquid-tight bottom layer. A leakage-proof layer is arranged above the liquid-permeable surface layer, the rear waist area is provided with an elastic waistline, the elastic waistline is connected between the leakage-proof layer and the liquid-permeable surface layer, the elastic waistline comprises a fixed telescopic part, and the fixed telescopic part is connected with the liquid-permeable surface layer to form a connecting part so as to shrink to drive the rear waistline to stretch and retract together, so that the waistline is attached to the skin of a human body; the longitudinal end of the absorption body is arranged below the free telescopic part and does not abut against the connecting part so that the absorption body can move freely without being limited by the paper diaper body, a softening area is formed, a concave pocket is formed under the combined action of the fixed telescopic part and the free telescopic part, the containing space of retentate is increased, and leakage of excrement of the human body is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary products, in particular to a diaper with an elastic waistline having a back leakage prevention function. Background Art

[0002] Diapers are commonly used care products for infants and adults who cannot take care of themselves. They are used to absorb and retain excreta such as urine and feces. Their important attribute is that the excreta are absorbed and fixed by the absorbent products, making people feel comfortable. Absorbent articles absorb excreta and can effectively prevent the excreta from flowing out and soiling the wearer's clothes or other items that come into contact with the wearer, such as bedding.

[0003] At present, diapers on the market still have excrement leakage during use. The most common failure form is the overflow of excrement from the front waist area or the back waist area of ​​the diaper. Among them, feces as human excrement are more difficult to be absorbed by the absorbent product. The feces can move in the back waist area, pass through the gap between the absorbent product and the wearer's skin, and then dirty or contaminate the wearer's skin and the clothes near the back. This situation may occur more often with semi-solid feces such as low-viscosity feces (such feces may be common for young children). Such effluent may move around on the body side lining of the absorbent product under the influence of gravity, movement, force and pressure of the wearer of the absorbent product. In such a case, not only does the wearer's absorbent product need to be replaced, but the wearer's clothes and / or bedding also need to be replaced, which brings extra work, cost and pressure to the caregiver.

[0004] In order to solve the above-mentioned defects of diapers, various leak-proof diapers have appeared on the market, which prevent rear leakage by setting a rear baffle, an absorbent sheet, an elastic sheet, etc. at the rear waist. Although the purpose of such leak-proof components is to prevent rear leakage, they may still fail.

[0005] Therefore, consumers have long hoped to obtain a product with an improved rear leakage system, wherein the rear leakage system of the product can have an increased accommodation space and a smaller fit gap with the body to prevent leakage. Utility Model Content

[0006] In view of the existing deficiencies, the purpose of the present invention is to provide a diaper with an elastic waistband with a back leakage prevention function to solve one or more of the above technical problems.

[0007] The utility model provides a diaper with an elastic waistband with a back leakage prevention function, comprising a diaper body, the diaper body comprising a liquid-permeable surface layer, a liquid-impermeable bottom layer and an absorbent body arranged between the liquid-permeable surface layer and the liquid-impermeable bottom layer, both lateral sides above the liquid-permeable surface layer are provided with a leakage-proof layer, the diaper with an elastic waistband with a back leakage prevention function comprises a front waist region, a crotch region and a back waist region along the longitudinal direction, an elastic waistband is arranged on the surface of the back waist region facing the body, the elastic waistband is connected between the leakage-proof layer and the liquid-permeable surface layer,

[0008] The elastic waist includes

[0009] A fixed stretchable portion, the fixed stretchable portion is connected to the liquid-permeable surface layer to form a connecting portion;

[0010] A free expansion portion, wherein the free expansion portion is located between the anti-leakage layers on both lateral sides above the liquid-permeable surface layer, the distance from the free expansion portion to the crotch area is smaller than the distance from the fixed expansion portion to the crotch area, and the longitudinal end of the absorbent body is placed under the free expansion portion and does not reach the connecting portion.

[0011] In some embodiments, the elastic waist comprises one or more sets of elastic members.

[0012] In some embodiments, the elastic waistline includes one or more sets of elastic members enclosed between two layers of covering fabrics.

[0013] In some embodiments, the two layers of covering fabric are formed by folding the same sheet material, and the ends of the sheet material overlap to form an overlapping area, and the overlapping area is arranged on a side close to the liquid-permeable surface layer.

[0014] In some embodiments,

[0015] The elastic member includes a plurality of elastic rubber bands arranged at intervals;

[0016] The length of the free telescopic portion in the longitudinal direction is greater than the length of the fixed telescopic portion in the longitudinal direction.

[0017] In some embodiments, the elastic rubber band corresponding to the free expansion and contraction portion includes at least one elastic strand, and the elastic rubber band corresponding to the fixed expansion and contraction portion includes 5-20 elastic strands, and the fineness of the elastic strands is 140-940 dtex.

[0018] In some embodiments, at least a portion of the fixed expansion portion is coupled to the liquid-permeable surface layer.

[0019] In some embodiments, a bonding area is arranged on a side of the elastic waist away from the human body contact side, avoiding the free stretchable portion, so as to be connected to the liquid-impermeable bottom layer.

[0020] In some embodiments, the diaper body also includes a fastening system, the fastening system includes a front waist tape and an adhesive group, the front waist tape is arranged on a side surface of the front waist region away from the human body contact side, the adhesive group includes adhesive sub-components respectively arranged on the two lateral ends of the back waist region, the adhesive sub-components include elastic ears and buckles, one end of the elastic ear is placed between the liquid-impermeable bottom layer and the leak-proof layer, and the other end of the elastic ear is connected to the buckle.

[0021] Beneficial effects:

[0022] The fixed telescopic part of the elastic waist of the diaper with an elastic waistband with a rear leakage prevention function described in the utility model is fixedly connected to the main body of the diaper. The fixed telescopic part of the elastic waistband contracts and drives the rear waistband to expand and contract together, so that the waistband can fit the human skin; the free telescopic part of the elastic waistband can move freely without being restricted by the diaper main body when the diaper main body contracts, and the end of the absorbent core does not abut against the fixed telescopic part, thereby forming a softened area. Under the joint action of the fixed telescopic part and the free telescopic part of the elastic waistband, a concave pocket is formed, which increases the accommodating space for retained objects and can more effectively prevent the leakage of human excrement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a top plan view of a diaper with an elastic waistband having a back leakage prevention function in a stretched, flat and unfastened state in some embodiments of the utility model;

[0024] Figure 2 For along Figure 1 A front perspective cross-sectional view taken along line BB of , wherein the diaper with an elastic waistband having a back leakage prevention function is in a relaxed configuration;

[0025] Figure 3 It is a planar development diagram of the elastic waist in some embodiments of the utility model;

[0026] Figure 4 for Figure 1 Section view in AA direction;

[0027] Figure 5 A schematic diagram of viscose on one side of the elastic waist in some embodiments of the utility model;

[0028] Figure 6 for Figure 1 A top perspective exploded view of a diaper with an elastic waistband having a back leakage prevention function is shown. DETAILED DESCRIPTION

[0029] Figure 1 X represents the horizontal and width direction; Y represents the vertical and length direction.

[0030] Combination Figures 1 to 6 As shown in the content, the diaper with elastic waistband having rear leakage prevention function disclosed in this embodiment has a front waist area 13, a crotch area 14 and a rear waist area 15 distributed along the Y direction.

[0031] The diaper with an elastic waistband having a back leakage prevention function disclosed in this embodiment comprises a diaper body 10 , wherein the diaper body 10 comprises a liquid permeable surface layer 1 , a liquid impermeable bottom layer 2 , and an absorbent body 3 disposed between the liquid permeable surface layer 1 and the liquid impermeable bottom layer 2 .

[0032] The absorbent body 3 has two side ends in the Y direction, namely a first end 31 a and a second end 31 b ; the absorbent body 3 also has two side portions in the X direction, namely a first side portion 32 a and a second side portion 32 b .

[0033] Anti-leakage layers are provided on both sides of the liquid-permeable surface layer 1 in the X direction, namely a first anti-leakage layer 11 and a second anti-leakage layer 12 .

[0034] An elastic waist 16 is provided on the surface of the back waist region 15 facing the body, and the elastic waist 16 is connected below the first anti-leakage layer 11 and the second anti-leakage layer 12, and the elastic waist 16 is connected to the liquid-permeable surface layer 1. The elastic waist 16 includes

[0035] The fixed stretchable part 161, at least a part of the fixed stretchable part 161 is connected to the liquid-permeable surface layer 1, and a connecting part is formed at the connecting part; the fixed stretchable part 161 is connected to the surface layer, and then connected to the body of the diaper. The expansion and contraction of the elastic waist can drive the expansion and contraction of the entire diaper waist, so that the diaper waist fits closely to the body. In addition, the connecting part isolates the two sides of the elastic waist, and the connecting part becomes the bottom with a leak-proof pocket.

[0036] The free expandable portion 162 is located between the first leak-proof layer 11 and the second leak-proof layer 12. When the diaper body 10 contracts, the free expandable portion 162 can move freely. The distance from the free expandable portion 162 to the crotch area 14 is smaller than the distance from the fixed expandable portion 161 to the crotch area 14, so that the free expandable portion 162 is closer to the center of the crotch area 14. The first end portion 31a is placed under the free expandable portion 162 and does not touch the connecting portion.

[0037] The above-mentioned fixed telescopic part 161 is fixedly connected to the diaper body 10. The contraction of the fixed telescopic part 161 drives the rear waist area 15 to expand and contract together, and then drives the waist circumference composed of the front waist area 13 and the rear waist area 15 to expand and contract together, so that the waist circumference fits the human skin. The free telescopic part 162 can move freely without being restricted by the diaper body 10 when the waist circumference contracts. The first end 31a of the absorbent body 3 does not abut the connecting part of the fixed free telescopic part 162, thereby forming a softened area, and then a concave pocket is formed under the joint action of the fixed telescopic part 161 and the free telescopic part 162, thereby increasing the accommodating space for retained objects and effectively reducing the possibility of leakage of human excrement.

[0038] Combination Figure 4 As shown in the content, the free stretchable part 162 is suspended above the end 31a of the absorbent body 3, is not connected to the liquid-permeable surface layer 1, and is in a free state. The free stretchable part 162 contracts to form the opening of the pocket for accommodating excrement. The fixed stretchable part forms the bottom of the pocket, forming a cavity for accommodating excrement. The fixed stretchable part 161 and / or the free stretchable part 162 include one or more groups of elastic components, which can be compounded between two layers of covering cloth 166. The elastic components of the fixed stretchable part 161 can include multiple strands of first elastic rubber bands 163 arranged at intervals, and the elastic components of the free stretchable part 162 can include multiple strands of second elastic rubber bands 164 arranged at intervals. The length L1 of the free stretchable part 162 in the Y direction is greater than the length L2 of the fixed stretchable part 161 in the Y direction.

[0039] The first elastic rubber band 163 and the second elastic rubber band 164 are not limited to elastic strands, but may also be elastic films, elastic twisted wires and other elastic materials.

[0040] In some specific implementations, the first elastic rubber band 163 includes 5-20 elastic strands, and the second elastic rubber band 164 includes at least one elastic strand, and the fineness of the elastic strand is 140-940 dtex.

[0041] The elastic components of the fixed telescopic portion 161 and the elastic components of the free telescopic portion 162 may be distributed close to each other or at intervals.

[0042] The covering cloth 166 and the elastic component can be connected by hot melt adhesive, ultrasonic welding or hot pressing.

[0043] In some specific implementations, the two layers of covering cloth 166 can be formed by folding the same sheet, and the ends of the sheet overlap to form an overlapping area. This structure is configured to enclose the elastic component between the two layers of covering cloth, and the overlapping area described herein can be arranged on the side close to the liquid-permeable surface layer 1.

[0044] The above-mentioned covering fabric 166 can be composed of spunbond-meltblown-spunbond ("SMS") material, and can also be composed of other materials, including but not limited to spunbond-film-spunbond ("SFS") material, bonded carded web ("BCW") material or any nonwoven material.

[0045] In some specific implementations, the covering cloth 166 may be composed of a laminate of more than one of the above materials or other materials.

[0046] In some specific implementations, the cover cloth 166 can be composed of a liquid-impermeable material.

[0047] In some specific implementations, the covering cloth 166 may be composed of a material coated with a hydrophobic coating.

[0048] Combination Figure 4 As shown, the first end portion 31a extends below the free stretch portion 162 of the elastic waist 16, and the first end portion 31a does not contact the fixed stretch portion 161 of the elastic waist 16, thereby forming a relatively weak area between the two so that a concave pocket can be formed when the fixed stretch portion 161 contracts.

[0049] In some specific implementations, combined with Figure 5 As shown, a bonding area 167 is arranged on the side of the elastic waist 16 away from the human body contact side, avoiding the free stretch portion 162 to connect with the liquid-impermeable bottom layer 2. The setting of the bonding area 167 is conducive to forming a pocket with an opening toward the crotch area 14.

[0050] In some embodiments, in combination Figure 1 , 2 6, the diaper body 10 also includes a fastening system, the fastening system includes a front waist tape 6 and an adhesive group, the front waist tape 6 is arranged on a side surface of the front waist region 13 away from the human body contact side, the adhesive group includes adhesive sub-assemblies respectively arranged on the two side ends of the back waist region 15 in the X direction, each adhesive sub-assembly includes an elastic ear 4 and a buckle 5, one side end of the elastic ear 4 is placed between the liquid-impermeable bottom layer 2 and the leak-proof layer (the first leak-proof layer 11 / the second leak-proof layer 12), and the other side end of the elastic ear 4 extends out of the diaper body 10 to connect the buckle 5.

[0051] The above undisclosed matters can be directly implemented by using existing technologies, so they will not be elaborated here.

[0052] The above are only some preferred embodiments of the present invention. It should be pointed out that a person skilled in the art can make several similar modifications and improvements without departing from the inventive concept of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. A diaper with an elastic waistband with a back leakage prevention function, comprising a diaper body, the diaper body comprising a liquid permeable surface layer, a liquid impermeable bottom layer, and an absorbent body arranged between the liquid permeable surface layer and the liquid impermeable bottom layer, and both lateral sides above the liquid permeable surface layer are provided with a leakage prevention layer, and the diaper with an elastic waistband with a back leakage prevention function has a front waist region, a crotch region and a back waist region along the longitudinal direction, characterized in that: An elastic waistline is provided on the surface of the back waist region facing the body, and the elastic waistline is connected between the anti-leakage layer and the liquid-permeable surface layer. The elastic waist includes A fixed stretchable portion, the fixed stretchable portion is connected to the liquid-permeable surface layer to form a connecting portion; A free expansion portion, wherein the free expansion portion is located between the anti-leakage layers on both lateral sides above the liquid-permeable surface layer, the distance from the free expansion portion to the crotch area is smaller than the distance from the fixed expansion portion to the crotch area, and the longitudinal end of the absorbent body is placed under the free expansion portion and does not reach the connecting portion.

2. The diaper with elastic waistband having anti-rear leakage function according to claim 1, characterized in that: The elastic waist includes one or more sets of elastic members.

3. The diaper with elastic waistband having rear leakage prevention function according to claim 2, characterized in that: The elastic waistline includes one or more sets of elastic members enclosed between two layers of covering fabrics.

4. The diaper with elastic waistband having rear leakage prevention function according to claim 3, characterized in that: The two layers of covering fabrics are formed by folding the same sheet material, the ends of the sheet material are overlapped to form an overlapping area, and the overlapping area is arranged on the side close to the liquid-permeable surface layer.

5. The diaper with elastic waistband having rear leakage prevention function according to any one of claims 2 to 4, characterized in that: The elastic member includes a plurality of elastic rubber bands arranged at intervals; The length of the free telescopic portion in the longitudinal direction is greater than the length of the fixed telescopic portion in the longitudinal direction.

6. The diaper with elastic waistband having rear leakage prevention function according to claim 5, characterized in that: The elastic rubber band corresponding to the free expansion and contraction part contains at least one elastic strand, and the elastic rubber band corresponding to the fixed expansion and contraction part contains 5-20 elastic strands, and the fineness of the elastic strands is 140-940 dtex.

7. The diaper with elastic waistband having rear leakage prevention function according to claim 1, characterized in that: At least a portion of the fixed stretchable portion is connected to the liquid-permeable surface layer.

8. The diaper with elastic waistband having back leakage prevention function according to claim 1, characterized in that: A bonding area is arranged on a side of the elastic waist away from the human body contact side, avoiding the free stretchable portion, so as to be connected with the liquid-impermeable bottom layer.

9. The diaper with elastic waistband having back leakage prevention function according to claim 1, characterized in that: The diaper body also includes a fastening system, which includes a front waist tape and an adhesive group. The front waist tape is arranged on a side surface of the front waist region away from the human body contact side. The adhesive group includes adhesive sub-assemblies respectively arranged on the two lateral ends of the back waist region. The adhesive sub-assembly includes elastic ears and buckles. One end of the elastic ear is placed between the liquid-impermeable bottom layer and the leak-proof layer, and the other end of the elastic ear is connected to the buckle.

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