Pull-ups capable of improving fitting performance

Abstract

The invention relates to the field of hygienic products, provides pull-ups capable of improving fitness, and solves the problems that existing adult pull-ups are relatively large in local elasticity and poor in overall fitness and comfort. Comprising a paper diaper body and a waistline part which are connected with each other, and the paper diaper body is defined to have a longitudinal direction in the length direction and a transverse direction perpendicular to the longitudinal direction; the waistline part comprises a front waistline and a rear waistline, the front waistline comprises an area A, an area B, an area C, an area D, an area E and an area F which are sequentially connected in the longitudinal direction, and the rear waistline comprises an area a, an area b, an area c, an area d, an area e and an area f which are sequentially connected in the longitudinal direction.

Description

Technical Field

[0001] This invention relates to the field of hygiene products, and more particularly to a pull-up panty that improves fit. Background Technology

[0002] In the hygiene products industry, fit and comfort have always been key concerns for consumers. Knitted underwear, with its refined craftsmanship, has a unique advantage in the use of elastomers. These elastomers are typically small and densely distributed throughout the fabric. This design allows the elasticity of the knitted underwear to be evenly distributed across the entire garment, providing the wearer with greater elasticity. Not only is it comfortable to wear, but the product also conforms perfectly to the body, adapting well to various movements without causing a feeling of restriction or looseness.

[0003] Adult pull-up diapers have relatively coarse elastic fibers that are sparsely distributed throughout the product. This results in the elasticity being concentrated in the areas with elastic bands, rather than being evenly distributed like knitted underwear. In actual wear, adult pull-up diapers tend to have more elasticity in certain areas, leading to a less snug fit and potentially causing either tightness in certain areas or looseness overall, thus affecting comfort and fit.

[0004] Furthermore, the primary user group for disposable adult pull-up diapers is mostly over 50 years old. This group has relatively obvious body shape characteristics, with a high percentage of people having a protruding abdomen. However, in the design of existing adult pull-up diapers, the spacing between the front and back elastic bands is usually evenly distributed. This design does not fully take into account the special body shape of this target group. Due to the protruding abdomen, the evenly distributed elastic band spacing cannot adapt well to the curves of the abdomen, causing the pull-up diaper to not fit snugly against the body in the abdominal area, easily resulting in problems such as sagging and shifting, further reducing the product's fit and wearing comfort.

[0005] Chinese patent application CN202310046927.8 discloses a material with a non-marking and anti-chafing function, its preparation method, and its application. The material comprises: a first elastic nonwoven fabric and a second elastic nonwoven fabric laminated together, and spandex filaments disposed between the first and second elastic nonwoven fabrics. This invention uses spandex filaments with a specific composition as the elastic band. The spandex filaments have high elongation and recovery rates, as well as low shrinkage rates. When applied to pull-up pants as an elastic waistband, they provide good elasticity and are not easily detached from the nonwoven fabric, thus achieving the effect of preventing chafing and leaving no marks. However, the elastic distribution of the spandex filament composite nonwoven fabric is relatively concentrated, resulting in relatively large local elasticity.

[0006] Chinese patent application CN202111197484.X discloses an anti-binding, breathable elastic material for waistbands and its preparation method, as well as a comfortable sanitary product. The anti-binding, breathable elastic material for waistbands comprises a first elastic nonwoven fabric and a second elastic nonwoven fabric laminated together. The first elastic nonwoven fabric includes cross-laid bicomponent crimped fibers, each comprising a first fiber and a second fiber arranged side-by-side, bonded together to form crimped fibers. The second elastic nonwoven fabric includes at least one fiber layer composed of randomly stacked elastic fiber filaments. This invention provides an elastic material that can be used to prepare elastic waistbands for sanitary products, such as elastic waistbands for pull-up diapers. It effectively solves the problems of waist and leg constriction or diaper slippage caused by improper fit during use, and also addresses issues of poor breathability and comfort. However, this elastic material lacks zoned rebound properties, resulting in poor conformability to the body characteristics of middle-aged and elderly individuals and an overall poor fit. Summary of the Invention

[0007] Therefore, in view of the above problems, the present invention provides a pull-up diaper with improved fit, which solves the problem that existing adult pull-up diapers have relatively large local elasticity and poor overall fit and comfort.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A pull-up diaper for improved fit includes an interconnected diaper body and a waistband portion. The diaper body is defined to have a longitudinal direction along its length and a transverse direction perpendicular to it. The waistband portion is formed of a first elastic membrane composite nonwoven fabric and includes a front waistband and a back waistband. The front waistband includes regions A, B, C, D, E, and F connected sequentially along the longitudinal direction, and the back waistband includes regions a, b, c, d, e, and f connected sequentially along the longitudinal direction. Region A... The tensile restoring force value is m, the tensile restoring force value of regions B, D, b, d, and f is n, the tensile restoring force value of regions C, F, and e is x, the tensile restoring force value of regions E and c is y, and the tensile restoring force value of region a is z; the magnitude of the tensile restoring force value is y>m>z>n>x, the ratio of y to x ranges from 3.0 to 4.5, the ratio of m to n ranges from 1.05 to 1.2, and the ratio of n to x ranges from 1.1 to 1.5.

[0010] Furthermore, the thickness of the first elastic membrane is 0.15mm-0.85mm, the basis weight is 35gsm-120gsm, and the stretch ratio is 1.3 times-3.8 times.

[0011] Furthermore, the first elastic membrane is perforated to increase air permeability. The first elastic membrane includes a perforated region II located in the middle region and perforated regions I located on both sides of the perforated region II. The perforated area in the perforated region I accounts for 25%-60%, and the perforated area in the perforated region II accounts for 40%-80%.

[0012] Furthermore, several elastic rubber bands are added online in regions E and c, with the spacing between the rubber bands set to 2 mm and the stretching ratio ≥ 2.5.

[0013] Furthermore, a second elastic membrane is added to regions E and c, wherein the stretch ratio of the second elastic membrane is ≥2.0.

[0014] By adopting the aforementioned technical solution, the beneficial effects of the present invention are as follows:

[0015] 1. Currently, the waistband of adult pull-up pants is mainly made of spandex composite nonwoven fabric. The waistband of this application uses elastic membrane composite nonwoven fabric. Compared with the structure of spandex composite nonwoven fabric, the elasticity of this structure is distributed throughout the entire composite area, which is more widely distributed and the product fits better.

[0016] 2. Based on the body shape characteristics of middle-aged and elderly people, by adjusting the elasticity of different areas of the waistband, the product's elasticity varies in different areas, which can better improve the fit, enhance comfort during wear, and prevent sagging and leakage. During the production of the waistband with its elastic membrane composite nonwoven fabric structure, perforations are made in the elastic membrane material to increase breathability in the waist area. This application controls the stretch ratio of different areas of the elastic waistband by designing the pore size and perforation ratio on the elastic membrane material, thereby creating differences in the product's elasticity in different areas.

[0017] 3. Appropriate thickness and weight ensure that the elastic membrane provides sufficient elasticity without being too thick or too thin, which would affect the overall performance and texture of the product. A reasonable stretch ratio range allows the elastic membrane to maintain good elasticity and resilience when stretched by external forces, preventing deformation or damage and extending the lifespan of the pull-up diapers. It also better adapts to human movement, ensuring the pull-up diapers always maintain a good fit. Attached Figure Description

[0018] Figure 1 This is a plan view of the pull-up pants in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the waist portion in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the area distribution of the front waist circumference in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the regional distribution of the back waist circumference in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the perforated area of ​​the first elastic membrane in an embodiment of the present invention;

[0023] The numbers in the diagram are as follows: 1-diaper body, 2-waistband, 201-first elastic membrane, 202-non-woven fabric, 21-front waistband, 22-back waistband. Detailed Implementation

[0024] Example 1

[0025] refer to Figures 1 to 5 A pull-up diaper for improving fit includes an interconnected diaper body 1 and a waistband 2. The diaper body is defined to have a longitudinal direction along its length and a transverse direction perpendicular to it. The waistband 2 is formed by a first elastic membrane 201 combined with a nonwoven fabric 202. The waistband 2 includes a front waistband 21 and a back waistband 22. The front waistband 21 includes regions A, B, C, D, E, and F connected sequentially along the longitudinal direction. The back waistband 22 includes regions a, b, and c connected sequentially along the longitudinal direction. c, d, e, f; the tensile restoring force value of region A is m, the tensile restoring force value of regions B, D, b, d, and f is n, the tensile restoring force value of regions C, F, and e is x, the tensile restoring force value of regions E and c is y, and the tensile restoring force value of region a is z; the magnitude of the tensile restoring force values ​​is y>m>z>n>x, the ratio of y to x is 3.0, the ratio of m to n is 1.05, and the ratio of n to x is 1.1.

[0026] The first elastic membrane has a thickness of 0.15 mm, a basis weight of 35 gsm, and a stretch ratio of 1.3 times.

[0027] The first elastic membrane is perforated to increase air permeability. The first elastic membrane includes a perforated region II located in the middle region and perforated regions I located on both sides of the perforated region II. The perforated area in the perforated region I accounts for 25% of the total area, and the perforated area in the perforated region II accounts for 40% of the total area.

[0028] Furthermore, several elastic rubber bands are added online in regions E and c, with the spacing between the rubber bands set to 2 mm and the stretching ratio to 2.5.

[0029] Furthermore, a second elastic membrane is added to regions E and c, the stretching ratio of the second elastic membrane being 2.0.

[0030] Example 2

[0031] refer to Figures 1 to 5 A pull-up diaper for improving fit includes an interconnected diaper body 1 and a waistband 2. The diaper body is defined to have a longitudinal direction along its length and a transverse direction perpendicular to it. The waistband 2 is formed by a first elastic membrane 201 combined with a nonwoven fabric 202. The waistband 2 includes a front waistband 21 and a back waistband 22. The front waistband 21 includes regions A, B, C, D, E, and F connected sequentially along the longitudinal direction. The back waistband 22 includes regions a, b, and c connected sequentially along the longitudinal direction. c, d, e, f; the tensile restoring force value of region A is m, the tensile restoring force value of regions B, D, b, d, and f is n, the tensile restoring force value of regions C, F, and e is x, the tensile restoring force value of regions E and c is y, and the tensile restoring force value of region a is z; the magnitude of the tensile restoring force values ​​is y>m>z>n>x, the ratio of y to x is 3.5, the ratio of m to n is 1.1, and the ratio of n to x is 1.3.

[0032] The first elastic membrane has a thickness of 0.55 mm, a basis weight of 80 gsm, and a stretch ratio of 2.5 times.

[0033] The first elastic membrane is perforated to increase air permeability. The first elastic membrane includes a perforated region II located in the middle region and perforated regions I located on both sides of the perforated region II. The perforated area in the perforated region I accounts for 40% of the total area, and the perforated area in the perforated region II accounts for 60% of the total area.

[0034] Several elastic rubber bands are added online in regions E and c, with the spacing between the rubber bands set to 2 mm and the stretching ratio to 3.0.

[0035] A second elastic membrane is added to regions E and c, the stretching ratio of the second elastic membrane being 2.5.

[0036] Example 3

[0037] refer to Figures 1 to 5A pull-up diaper for improving fit includes an interconnected diaper body 1 and a waistband 2. The diaper body is defined to have a longitudinal direction along its length and a transverse direction perpendicular to it. The waistband 2 is formed by a first elastic membrane 201 combined with a nonwoven fabric 202. The waistband 2 includes a front waistband 21 and a back waistband 22. The front waistband 21 includes regions A, B, C, D, E, and F connected sequentially along the longitudinal direction. The back waistband 22 includes regions a, b, and c connected sequentially along the longitudinal direction. c, d, e, f; the tensile restoring force value of region A is m, the tensile restoring force value of regions B, D, b, d, and f is n, the tensile restoring force value of regions C, F, and e is x, the tensile restoring force value of regions E and c is y, and the tensile restoring force value of region a is z; the magnitude of the tensile restoring force values ​​is y>m>z>n>x, the ratio of y to x is 4.5, the ratio of m to n is 1.2, and the ratio of n to x is 1.5.

[0038] The first elastic membrane has a thickness of 0.85 mm, a basis weight of 120 gsm, and a stretch ratio of 3.8 times.

[0039] The first elastic membrane is perforated to increase air permeability. The first elastic membrane includes a perforated region II located in the middle region and perforated regions I located on both sides of the perforated region II. The perforated area in the perforated region I accounts for 60% of the total area, and the perforated area in the perforated region II accounts for 80% of the total area.

[0040] Several elastic rubber bands are added online in regions E and c, with the spacing between the rubber bands set to 2 mm and the stretching ratio to 3.5.

[0041] A second elastic membrane is added to regions E and c, the stretching ratio of the second elastic membrane being 3.0.

[0042] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A pull-up pant with improved fit, characterized in that, The diaper includes an interconnected diaper body and a waistband. The diaper body is defined to have a longitudinal direction along its length and a transverse direction perpendicular to it. The waistband is formed of a first elastic membrane composite nonwoven fabric and includes a front waistband and a back waistband. The front waistband includes regions A, B, C, D, E, and F connected sequentially along the longitudinal direction, and the back waistband includes regions a, b, c, d, e, and f connected sequentially along the longitudinal direction. The tensile recovery force of region A is... The tensile restoring force value is m for regions B, D, b, d, and f, n for regions C, F, and e, x for regions E and c, y for regions a, and z for region a. The magnitude of the tensile restoring force value is y > m > z > n > x. The ratio of y to x ranges from 3.0 to 4.5, the ratio of m to n ranges from 1.05 to 1.2, and the ratio of n to x ranges from 1.1 to 1.

5.

2. The pull-up pants with improved fit according to claim 1, characterized in that, The thickness of the first elastic membrane is 0.15mm-0.85mm, the basis weight is 35gsm-120gsm, and the stretch ratio is 1.3 times-3.8 times.

3. The pull-up pants with improved fit according to claim 1, characterized in that, The first elastic membrane is perforated to increase air permeability. The first elastic membrane includes a perforated region II located in the middle region and perforated regions I located on both sides of the perforated region II. The perforated area in the perforated region I accounts for 25%-60% of the total area, and the perforated area in the perforated region II accounts for 40%-80% of the total area.

4. The pull-up pants with improved fit according to claim 1, characterized in that, Several elastic rubber bands are added online in regions E and c, with the spacing between the rubber bands set to 2 mm and the stretching ratio ≥ 2.

5.

5. The pull-up pants with improved fit according to claim 1, characterized in that, A second elastic membrane is added to regions E and c, wherein the stretch ratio of the second elastic membrane is ≥2.0.

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