Disposable absorption article

Abstract

The utility model relates to a disposable absorption article, the absorption article has the same longitudinal direction as the length direction and the same transverse direction as the width direction, the absorption article has a skin side close to the skin and a non-skin side far away from the skin when in use, the absorption article comprises an outer packaging body and an absorption main body, the absorption main body comprises an absorption core, the absorption core is provided with a first bending guide part and a second bending guide part, and the first bending guide part and the second bending guide part are parallel to each other. Two sides of the absorption main body are bent at the bending guide parts to form'lt; according to the section shape, the two sides of the absorption body are regularly erected so that the absorption body can be regularly attached to the crotch of a user, the comfortable attaching effect is improved, and absorption of excrement can be accelerated from the side edges through the absorption body with the two sides erected.

Description

Technical Field

[0001] The present invention relates to a disposable absorbent article, and particularly to a disposable pant-type absorbent article with anti-side leakage and narrow crotch. Background Art

[0002] Existing pant-type absorbent articles include an outer package and an inner absorbent main body. The outer package includes an inner and an outer layer of non-woven fabric and an elastic element between the inner and outer layers of non-woven fabric. The outer package forms an elastic waist circumference and elastic leg circumference portions; the inner absorbent main body is adhered to the skin side of the outer package. Usually, the outer package is connected to the inner absorbent main body by a bonding method with full coverage of adhesive. The overall softness of the core area is poor and the hardness is large. At the same time, the crotch area of the absorbent main body is wider than the actual crotch. During use, it will be subject to a certain amount of squeezing deformation. Due to the large hardness of the core, its soft and comfortable feeling is low, the deformation is relatively irregular, the fit effect is not good, and the fit and anti-leakage effect is not good, leaving room for improvement. Summary of the Invention

[0003] The present invention provides a disposable absorbent article, and particularly to a disposable pant-type absorbent article with anti-side leakage and narrow crotch, which improves the problems of softness, fit, and comfort of the core crotch of the existing pant-type absorbent article.

[0004] To achieve the above object, the present invention is realized by the following technical solutions:

[0005] A disposable absorbent article, the absorbent article having a longitudinal direction the same as the length direction and a transverse direction the same as the width direction. The absorbent article has a skin side close to the skin during use and a non-skin side away from the skin. The absorbent article includes an outer package and an absorbent main body. The absorbent main body includes an absorbent core. The absorbent core of the present invention is provided with a first bending guiding portion and a second bending guiding portion, and the first bending guiding portion and the second bending guiding portion are parallel to each other.

[0006] Preferably, the first bending guiding portion is located at a position on the inner side of the second bending guiding portion closer to the transverse direction.

[0007] Preferably, the absorbent core substantially does not contain a water-absorbing material at the first bending guiding portion.

[0008] Preferably, a pressing groove is provided at the second bending guiding portion of the absorbent core, and the pressing groove is recessed from the skin side to the non-skin side.

[0009] Preferably, the first bending guiding portion has a first width, and the size of the first width is greater than 1 / 2 of the thickness of the absorbent core; the second bending guiding portion has a second width, and the size of the second width is greater than 1 / 2 of the thickness of the absorbent core.

[0010] Preferably, the size of the first width is greater than the thickness of the absorbent core.

[0011] Preferably, first elastic telescopic elements extending longitudinally are provided on both lateral sides of the absorbent core.

[0012] Preferably, second elastic telescopic elements extending longitudinally are provided at the second bending guiding portion of the absorbent core.

[0013] Preferably, the absorbent main body further includes leak-proof side edges, a liquid-permeable surface layer, and a liquid-impermeable bottom layer that extend longitudinally on both sides in the width direction; the absorbent main body can be longitudinally divided into a front end portion, a middle portion, and a rear end portion, and the longitudinally extending imaginary line of the first bending guiding portion divides the middle region into a side absorbent main body and an intermediate absorbent main body on both lateral sides; the leak-proof side edge includes a base portion for fixing and a free portion, the base portion of the leak-proof side edge includes end base portions at both ends and an intermediate base portion in the middle region, and a third elastic telescopic element extending longitudinally is provided at the end of the free portion.

[0014] Preferably, the front end portion and the rear end portion of the absorbent main body have joint regions with a lateral width equal to the lateral width of the absorbent main body, and the joint regions connect the absorbent main body to the outer package, and the adjacent layers on the joint regions are connected together; in the middle portion of the absorbent main body, the side absorbent main body is not connected to the outer package, and in the worn state of the absorbent article, the side absorbent main body can freely stand up relative to the outer package, and the standing height of the leak-proof side edge is higher than the standing height of the side absorbent core at the side edge portion.

[0015] Preferably, in the middle portion of the absorbent main body, there is no connection between the leak-proof side edge and the absorbent core and the liquid-permeable surface layer, and the absorbent core can freely stand up relative to the leak-proof side edge.

[0016] Preferably, in the worn state of the absorbent article, the side absorbent main body can freely stand up, and the absorbent core at the side absorbent main body is bent at the first bending guiding portion and the second bending guiding portion, so that the absorbent core at the side absorbent main body forms a cross-sectional shape of "<".

[0017] Preferably, the liquid-impermeable bottom layer of the absorbent main body includes a middle breathable film and high-resistant spunbond non-woven fabrics on both sides in the width direction, and the lateral width of the middle breathable film is greater than the lateral width of the middle fixing portion of the absorbent main body.

[0018] By adopting the foregoing technical solutions, the beneficial effects of the present invention are as follows: In this technical solution, a bending guiding portion is formed by a groove without an absorption material and a groove with a relatively lower content around it. The absorption body is only connected to the outer package at the front end, the rear end and the middle area, and the connection area is reduced to improve its softness. Elastic elements extending longitudinally are provided at both ends of the absorption body. Under the action of the bending guiding portion and the elastic elements on both sides of the absorption body, the two sides stand up and the standing parts form a cross-sectional shape of "<". The two sides of the absorption body stand up regularly to fit the crotch of the user regularly, improving the comfortable fitting effect. The absorption body standing up on both sides can accelerate the absorption of excrement from the side; while the two sides of the absorption body are bent upward, the height of the connected leakage-proof side edge can be increased, improving the leakage-proof effect; in one of the solutions, the liquid-impermeable bottom film can be replaced by a combination of a middle breathable film and high-resistant spunbond non-woven fabrics on both sides in the width direction, which is used to improve the air permeability on both sides of the main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional view of a disposable absorbent article of the present invention;

[0020] Figure 2 is a plan view of Embodiment 1 of the present invention;

[0021] Figure 3 is Figure 2 a sectional view taken along line A-A;

[0022] Figure 4 is Figure 3 a sectional view in the use state;

[0023] Figure 5 is a plan view of Embodiment 2 of the present invention;

[0024] Figure 6 is Figure 5 a sectional view taken along line A-A;

[0025] Figure 7 is a sectional view in the use state of Embodiment 2;

[0026] Figure 8 is the core design 2 of a disposable absorbent article of the present invention;

[0027] Figure 9 is the core design 3 of a disposable absorbent article of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] As Figures 1 - 8As shown in the figure, a disposable absorbent article 1 provided by the present invention has a longitudinal direction Y identical to the length direction and a transverse direction X identical to the width direction; the absorbent article has a skin side close to the skin during use and a non-skin side away from the skin. The absorbent article 1 includes an outer package 11 and an absorbent main body 12 on the skin side of the outer package.

[0030] The absorbent main body 12 includes a liquid-permeable surface layer 121, an impermeable bottom layer 123, and an absorbent core 122 between the liquid-permeable surface layer and the impermeable bottom layer. The absorbent main body 12 further includes leak-proof side edges 124 extending longitudinally along both sides in the transverse direction. The absorbent main body 12 can be longitudinally divided into a front end portion 12a, a middle portion 12b, and a rear end portion 12c. It can be divided into a side absorbent main body 12M and a middle absorbent main body 12F with the first bending guide portion P1 as the dividing line. Hereinafter, the liquid-permeable surface layer will be simply referred to as the surface layer, and the impermeable bottom layer will be simply referred to as the bottom layer.

[0031] The surface layer 121 completely covers the skin-side surface of the absorbent core 122, and turns over from the skin side to the non-skin side on both sides in the transverse direction. After covering the two side edges of the absorbent core 122, the turned-over part covers the non-skin side part surface of the absorbent core 122.

[0032] The absorbent core 122 has an outer wrapping layer and an inner water-absorbing layer of the wrapping layer. The water-absorbing layer can be a fiber assembly containing water-absorbing natural fibers, or a mixed fiber assembly containing water-absorbing natural fibers and a water-absorbing polymer, or a water-absorbing material layer containing a laminated fiber sheet and a water-absorbing polymer between the fiber sheets; Figures 2 - 8 As shown in the figure, a first bending guide portion P1 with a certain longitudinal length is provided inside the absorbent core 122 in the transverse direction, and a second bending guide portion P2 with a certain longitudinal length is provided outside the absorbent core 122 in the transverse direction. The first bending guide portion P1 and the second bending guide portion P2 are parallel to each other. According to the first bending guide portion P1, the absorbent core 122 can be transversely divided into side absorbent cores 122M on both sides and a central absorbent core 122F; the absorbent core 122 at the first bending guide portion P1 does not contain a water-absorbing material layer, and the upper and lower layers of the wrapping layer are bonded to each other at the first bending guide portion P1; the second bending guide portion P2 is formed by setting a groove recessed from the skin side to the non-skin side in the absorbent core 122; the first bending guide portion P1 has a transverse width greater than 1 / 2 of the thickness of the absorbent core 122. A more preferred solution is to make the first bending guide portion P1 have a transverse width greater than the thickness of the absorbent core 122. The purpose is that the side absorbent core 122M is more likely to bend at the bending guide portion and will not be hindered by the absorbent core parts on both sides of the bending guide portion in the transverse direction due to too small a space. The second bending guide portion P2 has a transverse width greater than 1 / 2 of the thickness of the absorbent core 122, which can better achieve the guiding of bending and avoid the influence of excessive bending on the actual use effect.

[0033] At the lateral two - side positions of the absorbent core 122, there is a first elastic telescopic element 122a extending longitudinally between the absorbent core 122 and the surface layer 121. In the use state, under the mutual cooperation of the side absorbent core 122M, the first elastic telescopic element 122a, the first bending guide part P1, and the second bending guide part P2, the side absorbent core 122M can be bent towards the lateral inside, and the cross - sectional shape of the bend is "<" - shaped; in order to enhance the bending effect generated at the second bending guide part P2, a second elastic telescopic element 122b extending longitudinally is arranged between the skin - facing side of the second bending guide part P2 and the surface layer 121.

[0034] Figures 2 - 4 For Embodiment 1, the leakage - proof side edge 124 includes a base part 1242 for fixation and a free part 1241. The free part 1241 can stand up towards the wearer during use. The base part 1242 of the leakage - proof side edge 124 includes an end base part (not shown in the figure) and an intermediate base part 1242F. The end base parts are located at the longitudinal two ends of the leakage - proof side edge, and the intermediate base part 1242F is located between the end base parts at the two longitudinal ends; as Figure 3 , the head of the free part 1241 of the leakage - proof side edge 124 between the end base parts is located on the skin - facing side of the surface layer 121. A third elastic telescopic element 124a extending longitudinally is arranged at the head of the free part 1241 of the leakage - proof side edge 124. The free part 1241 of the leakage - proof side edge 124 extends towards the lateral outside from the head, turns over at the lateral edge, and the turned - over part covers the surface layer on both sides of the absorbent core 122 and then extends to the non - skin - facing side of the absorbent core 122. The turned - over extension part of the free part 1241 of the leakage - proof side edge 124 completely covers the non - skin - facing side of the side absorbent core 122M. There is a surface layer 121 between the free part 1241 of the leakage - proof side edge 124 located at the non - skin - facing side of the absorbent core 122 and the absorbent core 122, and there is no bonding setting between the free part 1241 of the leakage - proof side edge 124 and other layers; the intermediate base part 1242F is located at the non - skin - facing side of the central absorbent core 122F, and the leakage - proof side edge material, the bottom layer 123, the surface layer 121, and the absorbent core 122 are joined together at the intermediate base part 1242F.

[0035] The bottom layer 123 is arranged on the non - skin - facing side of the turned - over extension part of the free part 1241 of the leakage - proof side edge 124, and it completely covers the non - skin - facing side of the central absorbent core 122F. The lateral width of the bottom layer 123 is equal to the lateral width of the central absorbent core 122F or the lateral width of the bottom layer 123 is slightly larger than the lateral width of the central absorbent core 122F.

[0036] In the front end portion 12a and the rear end portion 12c regions of the absorbent body of Embodiment 1, there is a region where adjacent layers are completely connected together, and the maximum width of this region is equal to the width of the absorbent body (not shown in the figure); the middle portion 12b of the absorbent body is substantially not connected to the outer package 11 on the transverse sides divided by the first bending guide portion P1. During use, the transverse sides of the absorbent body are substantially not connected to the leakage-preventing side edges, and can freely stand up towards the skin side relative to the leakage-preventing side edges, that is, the side absorbent body 12M can freely stand up towards the wearer direction relative to the outer package 11. The two side absorbent cores can generate a bend towards the transverse inner side under the mutual cooperation of the first elastic telescopic element, the first bending guide portion, the second bending guide portion, and the second elastic telescopic element, and the cross-sectional shape of the bend is in the shape of "<"; due to the upward standing of the two side absorbent cores, the free portion of the leakage-preventing side edge has a larger standing space, making the leakage-preventing side edge have a relatively higher standing space; the above scheme enables the absorbent article to achieve regular bending relative to the core body at the crotch during use, reducing the crotch width without reducing the actual absorption amount of the core body, improving the fit at the same time, and making the standing effect of the leakage-preventing side edge better to improve its leakage-preventing performance.

[0037] Figures 5 - 7 For Embodiment 2, the leakage-preventing side edge 124' includes a base portion 1242' for fixation and a free portion 1241'. The free portion 1241' can stand up towards the wearer direction during use. The base portion 1242' of the leakage-preventing side edge 124' includes an end base portion (not shown in the figure) and an intermediate base portion 1242'F. The end base portions are located at the longitudinal two ends of the leakage-preventing side edge, and the intermediate base portion 1242'F is located between the longitudinal end base portions; the head of the free portion 1241' of the leakage-preventing side edge 124' between the end base portions is located on the skin side surface of the surface layer 121. A longitudinally extending third elastic telescopic element 124'a is provided at the head of the free portion 1241' of the leakage-preventing side edge 124'. The free portion 1241' of the leakage-preventing side edge 124' extends towards the transverse outer side from the head, turns over at the transverse edge, and the turned-over portion covers the surface layer on both sides of the absorbent core 122 and then extends to the non-skin side of the absorbent core 122. The free portion 1241' of the leakage-preventing side edge 124' does not completely cover the non-skin side of the side absorbent core 122M after turning over and extending. The part of the free portion 1241' of the leakage-preventing side edge 124' located on the skin side of the absorbent core 122 can be called the first free portion 12411', and the part located on the non-skin side of the absorbent core 122 is called the second free portion 12412'. The intermediate base portion 1242'F extends towards the transverse outer side from the tail of the second free portion 12412' to the transverse outer side of the transverse edge of the absorbent core 122, and the intermediate base portion 1242'F is adhered to the bottom layer 123'.

[0038] The bottom layer 123' is composed of a middle breathable membrane 123'F and high-resistant spunbond non-woven fabrics 123'M on both sides in the width direction. The position where the middle base fabric 1242'F is combined with the bottom layer 123' is on the high-resistant spunbond non-woven fabrics 123'M on both sides. There is no adhesive connection between the areas of the high-resistant spunbond non-woven fabrics 123'M on both sides of the bottom layer 123' in the middle 12b region and the outer package 11. That is, the side absorption main body 12M can freely stand up towards the wearer relative to the outer package 11. At the same time, the free part 1241' of the side absorption core 122M relative to the leakage isolation edge 124' can also freely stand up towards the wearer, achieving the same technical effect as in Solution 1. Further, the bottom layer is replaced by a combination of a middle breathable membrane and high-resistant spunbond non-woven fabrics on both sides in the width direction to improve the air permeability on both sides of the main body.

[0039] In Embodiment 2, there are areas where adjacent layers are completely connected together on the front end part 12a and the rear end part 12c regions of the absorption main body. The maximum width of this area is equal to the width of the absorption main body (not shown in the figure). There is no connection between the second free part 12412' and the absorption core 122 and the surface layer 121. The absorption core and the free part of the leakage isolation edge can play their own roles and effects more freely; alternatively, the connection between the second free part and the absorption core and the surface layer can be changed to a connected middle base part, which is not shown in the figure.

[0040] Figures 8 - 9 Two designs of the first bending guide part and the second bending guide part for the absorption core 122 are provided for reference.

[0041] Although the present invention has been specifically shown and described in combination with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention defined by the appended claims, and all of them are within the protection scope of the present invention.

Claims

1. A disposable absorbent article, the absorbent article having a longitudinal direction which is the same as the length direction and a transverse direction which is the same as the width direction, the absorbent article having a skin side close to the skin when in use and a non-skin side away from the skin, the absorbent article comprising an outer body and an absorbent body, the absorbent body comprising an absorbent core, characterized in that: The absorbent core is provided with a first bending guide portion and a second bending guide portion, and the first bending guide portion and the second bending guide portion are parallel to each other.

2. A disposable absorbent article according to claim 1, characterized in that: The first bending guide portion is located on the inner side of the second bending guide portion in the transverse direction.

3. A disposable absorbent article according to claim 2, characterized in that: The absorbent core substantially does not contain water-absorbing material at the first bending guide.

4. A disposable absorbent article according to claim 2, characterized in that: The absorbent core is provided with a pressing groove at the second bending guide portion, wherein the pressing groove is formed by being recessed from the skin side toward the non-skin side.

5. A disposable absorbent article according to claim 3, characterized in that: The first bending guide portion has a first width, which is greater than 1 / 2 of the thickness of the absorbent core; the second bending guide portion has a second width, which is greater than 1 / 2 of the thickness of the absorbent core.

6. A disposable absorbent article according to claim 4, characterized in that: The first width is greater than the thickness of the absorbent core.

7. A disposable absorbent article according to claim 1, characterized in that: The absorbent core is provided with first elastic stretchable elements extending longitudinally on both lateral sides.

8. A disposable absorbent article according to claim 1, characterized in that: The absorbent core is provided with a second elastic and stretchable element extending longitudinally at the second bending guide portion.

9. A disposable absorbent article according to any one of claims 1 to 8, characterized in that: The absorption body also includes leak-proof edges located on both sides of the width direction and extending longitudinally, a liquid-permeable surface layer and a liquid-impermeable bottom layer; the absorption body can be divided into a front end, a middle part, and a rear end along the longitudinal direction, and the longitudinally extending imaginary line of the first bending guide part divides the middle area into side absorption bodies and a middle absorption body on both sides in the lateral direction; the leak-proof edges include a base for fixing and a free part, and the leak-proof edge base includes end bases at both ends and a middle base in the middle area, and the end of the free part is provided with a third elastic telescopic element extending longitudinally.

10. A disposable absorbent article according to claim 9, characterized in that: The front and rear ends of the absorption body are provided with joining areas with a lateral width equal to the lateral width of the absorption body, the joining areas connect the absorption body to the outer body, and adjacent layers are connected together in the joining areas; in the middle part of the absorption body, the side absorption body is not connected to the outer body, and when the absorbent article is worn, the side absorption body can stand up freely relative to the outer body, and the standing height of the leak-proof partition edge is higher than the standing height of the side absorption core.

11. A disposable absorbent article according to claim 10, characterized in that: In the middle part of the absorbent body, the leakproof partition edge is not connected to the absorbent core and the liquid-permeable surface layer, and the absorbent core can stand freely relative to the leakproof partition edge.

12. A disposable absorbent article according to claim 11, characterized in that: When the absorbent article is worn, the side absorbent body can stand freely, and the absorbent core at the side absorbent body is bent at the first bending guide and the second bending guide, so that the absorbent core at the side absorbent body forms a "<" cross-sectional shape.

13. A disposable absorbent article according to claim 12, characterized in that: The liquid-impermeable bottom layer of the absorbent body comprises a middle breathable film and high-resistance spunmelt nonwoven fabrics on both sides in the width direction, and the transverse width of the middle breathable film is greater than the transverse width of the middle fixing part of the absorbent body.

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