A type of underwear-style diaper with improved fit
By incorporating various types and densities of elastic stretchers in different areas of the front and back waistbands of the underwear-style diaper, the elastic distribution of the waist and abdomen is optimized, solving the problem of ill-fitting waistbands and improving wearing comfort and fit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN HENGAN HLDG CO LTD
- Filing Date
- 2024-12-28
- Publication Date
- 2026-06-30
AI Technical Summary
The existing underwear-style diapers have elastic waistbands that are not designed to fit the human body, resulting in an ill-fitting fit that affects comfort and comfort.
Various types and densities of elastic stretching elements are set in different areas of the front and back waist circumference, including first, second and third elastic stretching elements. By adjusting their thickness, spacing and stretch ratio, the elastic distribution in the waist and abdomen area is optimized.
It improves the fit and comfort of underwear-style diapers, reduces the risk of sagging and leakage, and is suitable for wearers of different body types.
Smart Images
Figure CN224421305U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a panty-style diaper, and more particularly to a panty-style diaper with improved fit and comfort. Background Technology
[0002] Disposable underwear-style diapers, such as baby diapers, adult diapers, and women's menstrual pants, are well-known. The main function of this type of disposable absorbent item is to absorb and contain bodily excrement. These products are also used to prevent bodily excrement from soiling, wetting, or otherwise contaminating clothing or other items that come into contact with the wearer, such as bedding.
[0003] Panty-style diapers generally have a three-dimensional pant-shaped design with elasticity throughout the waist area. Currently, most pull-out diapers design the elastic waistband as a separate part, consisting of two layers of non-woven fabric bonded together with adhesive, then divided into front and back waistband sections, with the front and back waistbands separated before being joined to the absorbent core.
[0004] Pant-style diapers are wearable products where the wearer inserts their legs into the leg openings and pulls the diaper up to the appropriate position around the wearer's lower body. Pant-style absorbent products have become popular for children who are able to walk and are often toilet trained, as well as for wearers who are becoming more active and making the application of adhesive absorbent products more difficult.
[0005] Panty-style diapers utilize elastic elements secured in an elastically contractible state within the waist and / or leg openings. Typically, to ensure a complete elastic fit around the legs and waist, as is common in durable underwear, the leg and waist openings are at least partially surrounded by elastic elements positioned around the periphery of the respective openings. Panty-style wearable articles having a body for covering the wearer's crotch area and separate elastic bands defining the waist and leg openings are known in the art. However, the waist elastic elements are relatively densely distributed, while the abdominal elastic elements are relatively sparsely distributed, although the front and back elastic elements are generally symmetrically distributed. The body type of people who typically use panty-style diapers is often characterized by a small belly, and the symmetrical distribution of the front and back elastic elements does not suit this body type.
[0006] Therefore, an improved waistband design is needed to optimize product design for the main target population and improve the fit of the product, thereby enhancing the comfort and fit of underwear-style diapers. Summary of the Invention
[0007] The purpose of this invention is to provide a disposable absorbent article with excellent fit and wearing comfort.
[0008] According to the present invention, an underwear-style diaper with improved fit includes an absorbent body and an elastic waistband. The elastic waistband includes a front waistband and a back waistband, the lateral edges of which are joined to form a waist opening and two leg openings. The front and back waistbands are divided into at least four regions from the waist opening to the leg openings: a waist region, an upper abdominal region, a lower abdominal region, and a crotch region. The diaper is characterized in that elastic stretching members extending laterally and spaced longitudinally in the front and back waistband regions are joined between two layers of nonwoven fabric of the elastic waistband. These elastic stretching members include a first elastic stretching member, a second elastic stretching member, and a third elastic stretching member, located in the waist region of the front and back waistbands. The spacing between the elastic expansion members in the area is 2.5-5mm, and the spacing between the elastic expansion members in other areas is 1.5-3.5mm. The elastic expansion members are set in the front and back waistbands when the stretch ratio is 200%-350%. The average thickness of the first elastic expansion member is 40-470 denier, the average thickness of the second elastic expansion member is 280-940 denier, and the second elastic expansion member is set in the lower abdomen area of the front waistband and the upper abdomen area of the back waistband, or the second elastic expansion member is set in the upper abdomen area of the front waistband and the lower abdomen area of the back waistband. The average thickness of the third elastic expansion member is 280-940 denier, and the third elastic expansion member is set in the waist area of the front and back waistbands.
[0009] According to the present invention, an underwear-style diaper with improved fit is provided, optionally, wherein the front and back waistbands are divided into six regions from the waist opening to the leg opening, and the front and back waistbands are divided into at least four regions from the waist opening to the leg opening, and there is a lower waist region between the waist region and the upper abdomen region, and an abdominal region between the upper abdomen region and the lower abdomen region.
[0010] According to the present invention, an underwear-style diaper with improved fit is preferably provided in that, under the same stretch ratio, the stretch recovery force of the elastic stretch member located in the upper abdominal region of the front waist is equivalent to that of the elastic stretch member located in the lower abdominal region of the back waist, and the stretch force of the elastic stretch member located in the lower abdominal region of the front waist is equivalent to that of the elastic stretch member located in the upper abdominal region of the back waist.
[0011] According to the present invention, an underwear-style diaper with improved fit is preferably provided in which the tensile recovery force f of the second elastic stretch member located in the upper abdominal region and the lower abdominal region of the front and back waist is at least 1.5 times that of the tensile recovery force f of the first elastic stretch member.
[0012] According to the present invention, an underwear-style diaper with improved fit is preferably provided in the following manner: a second elastic stretch member is provided in the waist area, the lower abdominal area of the front waistband, and the upper abdominal area of the back waistband, wherein the tensile recovery force of the second elastic stretch member in the lower abdominal area of the front waistband and the upper abdominal area of the back waistband is at least 1.5 times the tensile recovery force f of the first elastic stretch member.
[0013] According to the present invention, a preferred embodiment of an underwear-style diaper with improved fit includes a first elastic stretch member located in the upper and lower abdominal regions of the front and back waistbands where the second elastic stretch member is present. The first and second elastic stretch members are arranged at intervals in the upper and lower abdominal regions of the front and back waistbands where the second elastic stretch member is present. The first and second elastic stretch members are also spaced apart in the upper and lower abdominal regions of the front and back waistbands where the second elastic stretch member is present, and the spacing between the first and second elastic stretch members is not related.
[0014] According to the present invention, a panty-style diaper with improved fit is preferably provided in the following manner: the upper abdominal region and the lower abdominal region of the front and back waistband where the second elastic stretch member is located are also provided with a first elastic stretch member, the first elastic stretch member is joined between two layers of nonwoven fabric to form a first elastic stretch member assembly, and the second elastic stretch member is superimposed on the first elastic stretch member assembly.
[0015] According to the present invention, an underwear-style diaper with improved fit is provided. The thickness, spacing, and elastic stretch ratio of the elastic stretch members in at least the lower waist area and abdominal area of the front and back waistbands are set differently to optimize the distribution and stretch ratio of the elastic stretch members. Different dense areas of elastic stretch members are formed in the front and back waistbands of the underwear-style diaper, which can better improve the fit of the product, the comfort during wear, prevent sagging, and prevent leakage. Attached Figure Description
[0016] Figure 1 A perspective view of an embodiment of an underwear-style diaper provided by the present invention;
[0017] Figure 2 A plan view of the elastic waistband of an underwear-style diaper according to one embodiment, in a flat, unshrinked state showing the surface facing the clothing;
[0018] Figure 3 This is a plan view of the elastic waistband of a panty-style diaper according to another embodiment, in a flat, unshrinked state showing the surface facing the clothing.
[0019] In the diagram, 1 represents a panty-style diaper, 2 is the absorbent core, 21 is the liquid-permeable top layer, 22 is the absorbent core layer, 23 is the liquid-impermeable bottom layer, 24 is the leak-proof side panel, 3 is the elastic waistband, 3A is the front waistband, 3B is the back waistband, C is the crotch area, 3D is the side seam, 7 is the waist opening, 8 is the leg opening, 9 is the curved leg opening, 31 is the waist area, 32 is the lower waist area, 33 is the upper abdomen area, 34 is the abdomen area, 35 is the lower abdomen area, 36 is the crotch area, 31A is the waist area of the front waistband, 32A is the lower waist area of the front waistband, 33A is the upper abdomen area of the front waistband, 34A is the abdomen area of the front waistband, 35A is the lower abdomen area of the front waistband, 36A is the crotch area of the front waistband, 31B is the waist area of the back waistband, and 32B is the lower waist area of the back waistband. 33B is the upper abdominal area of the back waist, 34B is the abdominal area of the back waist, 35B is the lower abdominal area of the back waist, 36B is the hip area of the back waist, 4 is an elastic stretching element, 41A is the elastic stretching element of the waist area of the front waist, 42A is the elastic stretching element of the lower waist area of the front waist, 43A is the elastic stretching element of the upper abdominal area of the front waist, 44A is the elastic stretching element of the abdominal area of the front waist, 45A is the elastic stretching element of the lower abdominal area of the front waist, 46A is the elastic stretching element of the hip area of the front waist, 41B is the elastic stretching element of the waist area of the back waist, 42B is the elastic stretching element of the lower waist area of the back waist, 43B is the elastic stretching element of the upper abdominal area of the back waist, and 44B is the elastic stretching element of the abdominal area of the back waist. 45B is the elastic stretch piece in the lower abdomen area of the back waist, 46B is the elastic stretch piece in the hip area of the back waist, 48A is the elastic stretch piece in the front leg circumference, 48B is the elastic stretch piece in the back leg circumference, and 81 is the leg circumference area. Detailed Implementation
[0020] The present invention will be further described below through specific embodiments. The present invention provides an improved fit panty-style diaper, which is typically placed around the wearer's crotch during use. The disposable absorbent article, after being unfolded with the side seals removed, has a longitudinal direction and a transverse direction. The term "longitudinal direction" as used herein refers to an imaginary direction of the diaper that aligns with the length direction of the diaper; the transverse direction is orthogonal to the longitudinal direction and aligns with the width direction or waistband direction of the diaper. The disposable panty-style diaper 1 has a front waistband 3A, a crotch area C, and a back waistband 3B in its longitudinal direction. During use, the front waistband is positioned facing the user's abdominal area and downwards towards the groin area, while the crotch area is positioned substantially directly below the user's crotch, and the back waistband is positioned facing the user's buttocks. Example
[0021] like Figure 1-3As shown, an underwear-style diaper 1 with improved fit according to the present invention includes an absorbent body 2 and an elastic waistband 3. The elastic waistband includes a front waistband 3A and a back waistband 3B. The lateral edges of the front waistband 3A and the back waistband 3B are joined to form a waist opening 7 and two leg openings 8. The front and back waistbands are roughly divided into a waist area 31, a lower waist area 32, an abdominal area 33, and a lower abdomen area 34 from the waist opening 7 to the leg openings 8.
[0022] The absorbent core of the panty-style diaper 1 comprises a liquid-permeable surface layer 21, an absorbent core layer 22, a liquid-impermeable bottom layer 23, and leak-proof side panels 24 arranged longitudinally. The liquid-permeable surface layer 21 is positioned facing the user of the panty-style diaper during use, while the liquid-impermeable bottom layer 23 faces away from the user, i.e., located at the bottom of the panty-style diaper 1. The absorbent core 22 is disposed between the liquid-permeable surface layer 21 and the liquid-impermeable bottom layer 23. The liquid-permeable surface layer 21 is preferably made of a soft non-woven fabric material. The liquid-impermeable bottom layer material 23 is selected from a liquid-impermeable film material, preferably a breathable film material that is breathable but not liquid-impermeable. The absorbent core layer 22 can use synthetic fibers and natural fibers, or fiber composites. The absorbent core layer 22 can also be formed from different material layers, or consist of a single layer with good properties for absorbing, diffusing, and storing bodily fluids. As long as it can absorb and retain bodily fluids, considering both absorbency and price, materials made by mixing absorbent polymer powder into fluffy wood pulp are generally preferred. To maintain the shape of the absorbent core, it can be wrapped with toilet paper or non-woven fabric. The leak-proof partition 24 is made of non-woven fabric with good water pressure resistance, and a longitudinal elastic expansion member is provided on the free edge of the leak-proof partition. The components can be connected together using appropriate connection methods, such as conventional methods known in the field of disposable absorbent items, such as adhesive bonding, thermoforming, and ultrasonic welding.
[0023] The absorbent body 2 is joined at both ends to a front waistband 3A and a back waistband 3B, respectively. The areas of the front and back waistbands that overlap with the absorbent core layer 22 in the absorbent body 2 are preferably elastically removed or weakened by heating and melting or cutting the elastic member. The elastic member on the lateral outer side of the area where the elastic waistband overlaps with the absorbent core layer is fixedly joined between the two layers of nonwoven fabric near the overlapping area.
[0024] like Figure 2The diagram shows a partial plan view of an embodiment of an elastic waistband for a panty-style diaper, in a flat, unshrinked state showing the surface facing the clothing. The front and back waistbands 3A and 3B are divided into four regions from the waist opening to the leg opening: waist region 31, upper abdomen region 33, lower abdomen region 35, and crotch region 36. Elastic stretch members 4, extending laterally and spaced longitudinally within the front and back waistband regions, are joined between the two layers of nonwoven fabric of the elastic waistband. These elastic stretch members include a first elastic stretch member, a second elastic stretch member, and a third elastic stretch member.
[0025] The elastic stretching elements 43A, 46A, 45B, and 46B in the upper abdominal region 33A, the hip region 36A, the lower abdominal region 35B, and the hip region 36B of the back waist circumference are first elastic stretching elements with an average thickness of 40-470 denier. These first elastic stretching elements extend laterally along the waist circumference and are spaced 1.5-3.5 mm apart longitudinally. They are installed in the front and back waist circumferences when the stretch ratio is 200%-350%. Under the same stretch ratio, the tensile recovery force of the first elastic stretching elements is comparable.
[0026] The elastic stretchers 45A and 43B in the lower abdominal region 35A of the front waist and the upper abdominal region 33B of the back waist use second elastic stretchers with an average diameter of 280-940 denier. These second elastic stretchers are spaced 1.5-3.5 mm apart longitudinally and are installed at a stretch ratio of 200%-350%. The elastic stretchers 45A in the lower abdominal region 35A of the front waist and 43B in the upper abdominal region 33B of the back waist use second elastic stretchers that are thicker than the first elastic stretchers. Under the same stretch ratio, the tensile restoring forces of the elastic stretchers 45A in the lower abdominal region 35A of the front waist and 43B in the upper abdominal region 33B of the back waist are comparable (i.e., equal or approximately equal). Under the same stretch ratio, the tensile restoring force of the second elastic stretcher is greater than that of the first elastic stretcher. Preferably, the tensile restoring force f of the second elastic expansion member is at least 1.5 times that of the tensile restoring force f of the first elastic expansion member.
[0027] The third elastic stretcher, consisting of elastic stretcher 41A in the front waist area and elastic stretcher 41B in the rear waist area, has an average diameter of 280-940 denier. The third and second elastic stretchers are identical. The spacing between the elastic stretchers 41A and 41B in the front and rear waist areas is 2.5-5 mm, and they are positioned in the waist area with a stretch ratio of 200%-350%.
[0028] In the panty-style diaper 1 provided in this embodiment, the elastic stretching force of the elastic stretching member 43B located in the upper abdominal area of the back waist is greater than that of the elastic stretching member 43A located in the upper abdominal area of the front waist, and the elastic stretching force of the elastic stretching member 45A located in the lower abdominal area of the front waist is greater than that of the elastic stretching member 45B located in the lower abdominal area of the back waist. When the wearer uses this panty-style diaper, due to the different settings of the elastic stretching members in the upper and lower abdominal areas, the side joints form an arc shape under the different stretching effects of the elastic stretching members in different areas, allowing the panty-style diaper to fit the wearer's upper and lower abdominal areas well. Example
[0029] The panty-style diaper provided in this embodiment has four regions along the front and back waistbands 3A and 3B, from the waist opening to the leg opening: waist region 31, upper abdomen region 33, lower abdomen region 35, and crotch region 36. Elastic stretch members 4, extending laterally and spaced longitudinally along the front and back waistbands, are joined between the two layers of nonwoven fabric of the elastic waistband. These elastic stretch members include a first elastic stretch member, a second elastic stretch member, and a third elastic stretch member. The elastic stretch members extend laterally along the waistband and are spaced longitudinally. The elastic stretch members are positioned within the two layers of material in the front waistband when the stretch ratio is 200%-350%. A third elastic stretch member is provided in the waistband region 31 of both the front and back waistbands. The third elastic stretch member is made of 280-940 denier elastic spandex yarn, and the longitudinal spacing between the third elastic stretch members 41A and 41B is 1.5-3.5 mm.
[0030] The elastic stretchers located in the lower abdomen area 35A and hip area 36A of the front waist are the first elastic stretchers, and the elastic stretcher located in the upper abdomen area 33A of the front waist is the second elastic stretcher. Similarly, the elastic stretchers located in the upper abdomen area 35B and hip area 36B of the back waist are the first elastic stretchers, and the elastic stretcher located in the lower abdomen area 33B of the back waist is the second elastic stretcher. The first elastic stretcher has an average thickness of 40-470 denier spandex yarn, and the second elastic stretcher has an average thickness of 280-940 denier spandex yarn. The second elastic stretcher has a higher denier than the first elastic stretcher.
[0031] In the panty-style diaper provided in this embodiment, the elastic stretching force of the elastic stretching member 43A in the upper abdominal area of the front waistband is greater than that of the elastic stretching member 43B in the upper abdominal area of the back waistband, and the elastic stretching force of the elastic stretching member 45B in the lower abdominal area of the back waistband is greater than that of the elastic stretching member 45A in the lower abdominal area of the front waistband. When the wearer uses this panty-style diaper, due to the different settings of the elastic stretching members in the upper and lower abdominal areas, the side joints form an arc shape under the different stretching effects of the elastic stretching members in different areas. Example
[0032] like Figure 3 As shown, this is a partial plan view of the elastic waistband of the underwear-style diaper in this embodiment, in a flat, unshrinked state showing the surface facing the clothing. The front and back waistbands 3A and 3B are divided into six regions from the waist opening to the leg opening: waist region 31, lower waist region 32, upper abdomen region 33, abdomen region 34, lower abdomen region 35, and crotch region 36. Elastic stretching members 4, which extend laterally and are spaced longitudinally between the front and back waistband regions, connect the two layers of nonwoven fabric. These elastic stretching members include a first elastic stretching member, a second elastic stretching member, and a third elastic stretching member.
[0033] The elastic stretchers 41A and 41B in the waist area of the front and back waistbands are third elastic stretchers with an average diameter of 280-940 denier. The third elastic stretcher and the second elastic stretcher are the same elastic stretchers. The spacing between the elastic stretchers 41A and 41B in the waist area of the front and back waistbands is 2.5-5mm, and they are set in the waist area with a stretch ratio of 200%-350%.
[0034] In the lower abdominal region 35A of the front waist circumference, the elastic stretching member 45A uses a second elastic stretching member with an average diameter of 280-940 denier. These second elastic stretching members are spaced 1.5-3.5 mm apart longitudinally and are installed at a stretch ratio of 200%-350%. In the four other regions 32A, 33A, 34A, and 36A of the front waist circumference (excluding the waist region 31A and the lower abdominal region 35A), the elastic stretching members 42A, 43A, 44A, and 46A use a first elastic stretching member with an average diameter of 40-470 denier. These first elastic stretching members extend laterally along the waist circumference and are spaced 1.5-3.5 mm apart longitudinally. They are installed in the front and back waist circumferences at a stretch ratio of 200%-350%. Under the same stretch ratio, the tensile recovery force of the first elastic stretching members is comparable.
[0035] In the upper abdominal region 33B of the back waist, the elastic stretching member 43B uses a second elastic stretching member with an average diameter of 280-940 denier. These second elastic stretching members are spaced 1.5-3.5 mm apart longitudinally and are installed at a stretch ratio of 200%-350%. In the four regions 32B, 34B, 35B, and 36B of the back waist (excluding the waist region 31B and the upper abdominal region 33B), the elastic stretching members 42B, 44B, 45B, and 46B use a first elastic stretching member with an average diameter of 40-470 denier. These first elastic stretching members extend laterally along the waist and are spaced 1.5-3.5 mm apart longitudinally. They are installed in the front and back waist regions at a stretch ratio of 200%-350%. Under the same stretch ratio, the tensile recovery force of the first elastic stretching members is comparable.
[0036] Under the same stretch ratio, the tensile restoring force of the second elastic expansion member is greater than that of the first elastic expansion member. Alternatively, the tensile restoring force f of the second elastic expansion member is at least 1.5 times that of the first elastic expansion member. Alternatively, the tensile restoring force f of the second elastic expansion member is 1.5 to 2.5 times that of the first elastic expansion member.
[0037] In the panty-style diaper 1 provided in this embodiment, the elastic stretching force of the elastic stretching member 43B located in the upper abdominal area of the back waist is greater than that of the elastic stretching member 43A located in the upper abdominal area of the front waist, and the elastic stretching force of the elastic stretching member 45A located in the lower abdominal area of the front waist is greater than that of the elastic stretching member 45B located in the lower abdominal area of the back waist. When the wearer uses this panty-style diaper, due to the different settings of the elastic stretching members in the upper and lower abdominal areas, the side joints form an arc shape under the different stretching effects of the elastic stretching members in different areas, allowing the panty-style diaper to fit the wearer's upper and lower abdominal areas well. Example
[0038] like Figure 3 As shown, this is a partial plan view of the elastic waistband of the underwear-style diaper in this embodiment, in a flat, unshrinked state showing the surface facing the clothing. The front and back waistbands 3A and 3B are divided into six regions from the waist opening to the leg opening: waist region 31, lower waist region 32, upper abdomen region 33, abdomen region 34, lower abdomen region 35, and crotch region 36. Elastic stretching members 4, which extend laterally and are spaced longitudinally in the front and back waistband regions, are joined between two layers of nonwoven fabric. These elastic stretching members include a first elastic stretching member, a second elastic stretching member, and a third elastic stretching member.
[0039] The elastic stretchers 41A and 41B in the waist area of the front and back waistbands are third elastic stretchers with an average diameter of 280-940 denier. The third elastic stretcher and the second elastic stretcher are the same elastic stretchers. The spacing between the elastic stretchers 41A and 41B in the waist area of the front and back waistbands is 2.5-5mm, and they are set in the waist area with a stretch ratio of 200%-350%.
[0040] In the lower abdominal region 35A of the front waistband, the elastic stretching element 45A uses a first elastic stretching element with an average thickness of 40-470 denier and a second elastic stretching element with an average thickness of 280-940 denier, spaced alternately. The first and second elastic stretching elements are spaced 1.5-3.5 mm apart longitudinally, and are set at a stretch ratio of 200%-350%. In the upper abdominal region 33B of the back waistband, the elastic stretching element 43B uses a first elastic stretching element with an average thickness of 40-470 denier and a second elastic stretching element with an average thickness of 280-940 denier, spaced alternately. The first and second elastic stretching elements are spaced 1.5-3.5 mm apart longitudinally, and are set at a stretch ratio of 200%-350%.
[0041] The elastic stretching elements in the other four areas of the front waist circumference 32A, 33A, 34A, 36A and the other four areas of the back waist circumference 32B, 34B, 35B, 36B adopt the first elastic stretching element with an average thickness of 40-470 denier. The first elastic stretching element extends laterally along the waist circumference and is set at a longitudinal spacing of 1.5-3.5mm. The first elastic stretching element is set in a state of stretching ratio of 200%-350%.
[0042] Under the same stretch ratio, the tensile restoring force of the second elastic expansion member is greater than that of the first elastic expansion member. Alternatively, the tensile restoring force f of the second elastic expansion member is at least 1.5 times that of the first elastic expansion member. Alternatively, the tensile restoring force f of the second elastic expansion member is 1.5 to 2.5 times that of the first elastic expansion member. Example
[0043] A partial plan view of the elastic waistband of the underwear-style diaper in this embodiment, showing its flat, unshrinked state with the surface facing the clothing. The front and back waistbands 3A and 3B are divided into six regions from the waist opening to the leg opening: waist region 31, lower waist region 32, upper abdomen region 33, abdomen region 34, lower abdomen region 35, and crotch region 36. Elastic stretch members 4, extending laterally and spaced longitudinally in the front and back waistband regions, are joined between the two layers of nonwoven fabric of the elastic waistband. These elastic stretch members include a first elastic stretch component, a second elastic stretch component, and a third elastic stretch component. The first elastic stretch component is formed by placing a first elastic stretch member between two thin layers of nonwoven fabric. The first elastic stretch member extends laterally along the waistband and is spaced longitudinally at intervals of 1.5-3.5 mm. The first elastic stretch member is positioned at a stretch ratio of 200%-350%.
[0044] The elastic stretchers 41A and 41B in the waist area of the front and back waistbands are third elastic stretchers with an average diameter of 280-940 denier. The third elastic stretcher and the second elastic stretcher are the same elastic stretchers. The spacing between the elastic stretchers 41A and 41B in the waist area of the front and back waistbands is 2.5-5mm, and they are set in the waist area with a stretch ratio of 200%-350%.
[0045] In the lower abdominal region 35A of the front waist circumference, a second elastic expansion member with an average diameter of 280-940 denier is further provided on the base layer of the first elastic expansion member, spaced longitudinally at intervals of 2-6 mm. The second elastic expansion member is provided at a stretch ratio of 200%-350%. In the lower abdominal region of the front waist circumference, the first and second elastic expansion members have superimposed tensile restoring forces. Under the same front waist circumference stretch ratio, the elastic restoring force of the lower abdominal region 35A of the front waist circumference is at least 1.5 times that of the lower waist region 32A, upper abdominal region 33A, abdominal region 34A, and hip region 36A of the front waist circumference.
[0046] In the upper abdominal region 33B of the back waist circumference, a second elastic stretching member with an average diameter of 280-940 denier is further provided on the base layer of the first elastic stretching member, spaced 2-6 mm apart longitudinally. The second elastic stretching member is provided at a stretch ratio of 200%-350%. In the upper abdominal region of the back waist circumference, the elastic restoring force of the first and second elastic stretching members is superimposed. Under the same stretch ratio of the back waist circumference, the elastic restoring force of the upper abdominal region 33B of the back waist circumference is at least 1.5 times that of the elastic restoring force of the lower waist region 32B, abdominal region 34B, lower abdomen region 34B, and hip region 36B of the front waist circumference.
[0047] In the panty-style diaper 1 provided in this embodiment, the elastic stretching force of the elastic stretching member 43B located in the upper abdominal area of the back waist is greater than that of the elastic stretching member 43A located in the upper abdominal area of the front waist, and the elastic stretching force of the elastic stretching member 45A located in the lower abdominal area of the front waist is greater than that of the elastic stretching member 45B located in the lower abdominal area of the back waist. When the wearer uses this panty-style diaper, due to the different settings of the elastic stretching members in the upper and lower abdominal areas, the side joints form an arc shape under the different stretching effects of the elastic stretching members in different areas, allowing the panty-style diaper to fit the wearer's upper and lower abdominal areas well.
[0048] The present invention has been described in detail above with reference to embodiments, but this does not constitute a limitation on the scope of the invention. Modifications and variations made under the same concept are all within the scope of protection of the present invention.
Claims
1. A pant-type paper diaper for improving fit, comprising an absorbent main body and elasticized waistbands, the elasticized waistbands comprising a front waistband and a back waistband, the transverse edges of the front and back waistbands being joined to form one waist opening and two leg openings, the front and back waistbands being divided into at least four regions from the position of the waist opening to the leg opening, a waist region, an upper abdominal region, a lower abdominal region, and a crotch region, characterized in that: Elastic stretching elements, extending laterally and spaced longitudinally in the front and back waist areas, are joined between the two layers of nonwoven fabric of the elastic waistband. These elastic stretching elements include a first elastic stretching element, a second elastic stretching element, and a third elastic stretching element. The spacing between the elastic stretching elements in the waist area of the front and back waistbands is 2.5-5 mm, while the spacing between the elastic stretching elements in other areas is 1.5-3.5 mm. The elastic stretching elements are positioned in the front and back waistbands at a stretch ratio of 200%-350%. The average thickness of the first elastic stretching element is 40-470 denier, and the average thickness of the second elastic stretching element is 280-940 denier. The second elastic stretching element is positioned in the lower abdomen area of the front waistband and the upper abdomen area of the back waistband, or in the upper abdomen area of the front waistband and the lower abdomen area of the back waistband. The average thickness of the third elastic stretching element is 280-940 denier, and the third elastic stretching element is positioned in the waist area of both the front and back waistbands.
2. The panty-style diaper with improved fit according to claim 1, characterized in that... The front and back waist circumference has six regions from the waist opening to the leg opening. The front and back waist circumference is divided into at least four regions from the waist opening to the leg opening. There is also a lower waist region between the waist region and the upper abdomen region, and an abdominal region between the upper abdomen region and the lower abdomen region.
3. The panty-style diaper with improved fit according to claim 1, characterized in that: When the elastic stretching components of the front and back waistbands are stretched to the same ratio, the tensile restoring force of the elastic stretching component located in the upper abdominal region of the front waistband is comparable to that of the elastic stretching component located in the lower abdominal region of the back waistband, and the tensile force of the elastic stretching component located in the lower abdominal region of the front waistband is comparable to that of the elastic stretching component located in the upper abdominal region of the back waistband.
4. The panty-style diaper with improved fit according to claim 1, characterized in that: The tensile restoring force f of the second elastic stretching member located in the upper and lower abdominal regions of the front and back waist circumference is at least 1.5 times that of the tensile restoring force f of the first elastic stretching member.
5. The panty-style diaper with improved fit according to claim 1, characterized in that: The second elastic expansion member is provided in the waist area, the lower abdomen area of the front waist, and the upper abdomen area of the back waist. The tensile restoring force of the second elastic expansion member in the lower abdomen area of the front waist and the upper abdomen area of the back waist is at least 1.5 times the tensile restoring force f of the first elastic expansion member.
6. The panty-style diaper with improved fit according to claim 1, characterized in that: The second elastic expansion member exists in the upper and lower abdominal areas of the front and rear waist circumferences, and the first elastic expansion member is also provided.
7. The panty-style diaper with improved fit according to claim 1, characterized in that: The second elastic expansion member exists in the upper and lower abdominal areas of the front and rear waist circumferences, and the areas of the first and second elastic expansion members are arranged at intervals.
8. The panty-style diaper with improved fit according to claim 1, characterized in that: The second elastic stretching member exists in the upper and lower abdominal regions of the front and rear waist circumferences. The first elastic stretching member is spaced apart, and the second elastic member is spaced apart. The spaced apartness of the first elastic stretching member and the second elastic stretching member is not related.
9. The panty-style diaper with improved fit according to claim 1, characterized in that: The first elastic expansion member is joined between two layers of nonwoven fabric to form a first elastic expansion member assembly, and the second elastic expansion member is superimposed on the first elastic expansion member assembly.