Composite elastomer disposable close-fitting sanitary pants
By using a composite elastomer structure and multi-layer material design, the problems of waistline marks and poor breathability have been solved, resulting in a more comfortable and breathable wearing experience.
Patent Information
- Application Number
- CN202511252973.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-03
- Publication Date
- 2026-01-02
AI Technical Summary
Existing disposable sanitary panties have waistband materials that easily leave marks, poor breathability, and uneven elasticity, affecting wearing comfort.
It adopts a composite structure of sponge layer, inner elastic layer, pearl cotton layer and outer elastic layer. The inner elastic layer is preset to have a greater tensile force than the outer elastic layer. The pearl cotton layer has slits. The outer layer has sponge strips. The elastic layer has multiple elastics spaced apart along the width direction. The slits are arranged in an alternating pattern. It is combined with non-woven elastic fabric layer and knitted fabric lining.
It improves breathability and sweat absorption, evenly distributes elasticity, reduces marks, enhances wearing comfort, adapts to the physiological curves of different parts of the body, and prevents wrinkles and tears.
Smart Images
Figure CN121242843A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a composite elastic body disposable underpants. BACKGROUND
[0002] The disposable underpants include disposable briefs, baby diapers, pull-ups and women's panty-type sanitary napkins, etc., which have the common feature of including a waistband and leg bands. The waistband is required to have a certain elasticity to prevent the pants from falling off, and the elastic force should not be too concentrated to prevent marks, and the air permeability is also required to improve the comfort of the wearer as much as possible. The existing waistband is generally made of non-woven fabric composite processing, and the elastic body is generally composed of two layers of non-woven fabric bonded with spandex silk elastic or elastic film. The spandex silk elastic is prone to cause marks, and the elastic film has insufficient elasticity and poor air permeability. SUMMARY
[0003] The purpose of the present application is to provide a composite elastic body disposable underpants, which has the advantages of not easy to fall off, breathable and sweat-absorbing, no marks, and significantly improved wearing comfort.
[0004] The technical scheme of the present application is as follows: a composite elastic body disposable underpants, including a sanitary pant body, the sanitary pant body including a waistband and leg bands, the waistband is formed by folding a planar fabric with upper and lower edges, and connecting the two ends of the upper and lower edges, the upper and lower edges both include a composite elastic body, the composite elastic body includes a sponge layer, an inner elastic layer, a pearl cotton layer, an outer elastic layer and a non-woven elastic cloth layer arranged in sequence from top to bottom in the form of a strip, when the upper and lower edges are connected to form the waistband, the two sponge layers are mutually adhered to form an inner layer structure, before the upper and lower edges are connected, the preset tension of the inner elastic layer is greater than that of the outer elastic layer, a plurality of slits are provided on the pearl cotton layer, and the length of the slits extends along the width direction of the pearl cotton layer.
[0005] The beneficial effects of the technical scheme are as follows: when the composite elastic body disposable close-fitting sanitary pants is used, the sponge layer is attached to the skin, has the characteristics of air permeability, sweat absorption and reduction of the tension concentration of the elastic band, and has elasticity itself; the double-layer design of the inner elastic band layer and the outer elastic band layer ensures sufficient elasticity to prevent disengagement and sagging, and the elasticity of the double-layer design is more uniform and dispersed than that of the single-layer design, thereby preventing the tightness caused by excessive concentration of the elastic force and reducing the marks; the setting of the pearl wool layer makes it possible to reduce the tension concentration of the outer elastic band layer, increase the skin-fitting property, and make the human body more comfortable, which is the main means to reduce the marks, and in cooperation with the sponge layer of the inner layer, the marks are completely eliminated, the skin-fitting property and comfort are significantly improved, and the upper part has a plurality of slits, which are deformed when worn, the slits become openings, and the air permeability is further improved; the difference in elasticity between the inner elastic band layer and the outer elastic band layer is mainly to compensate for the fact that after the upper and lower edges are combined to form a waistline and after wearing, the deformation amount of the outer elastic band layer is greater than that of the inner elastic band layer located in the inner circle, and if the tension of the inner elastic band layer and the outer elastic band layer is the same before being connected to form a waistline, it will lead to the problem that the tension of the inner and outer elastic band layers is inconsistent and unbalanced when worn due to the greater deformation of the outer elastic band layer than that of the inner elastic band layer, or cause wrinkles in the inner layer, or the inner elastic band layer does not play a role in elasticity, etc. The present application makes the preset tension of the inner elastic band layer greater than that of the outer elastic band layer before the waistline is formed, which is similar to applying prestress, to compensate for the subsequent tension difference, thereby effectively solving the above problems.
[0006] On the basis of the above scheme, further improvements are as follows: the inner elastic band layer and / or the outer elastic band layer each includes a plurality of elastic bands arranged at intervals along the width direction thereof, and the preset tension of each elastic band gradually increases from the leg opening to the waistline.
[0007] The beneficial effects of the technical scheme are as follows: the plurality of elastic bands have the advantage of more dispersed tension compared to a single elastic band, and the design of gradually decreasing tension of each elastic band from top to bottom is due to the physiological curve of the waist and hip regions covered by the waistline, which has a diameter that gradually increases from top to bottom. In order to better fit the body, the tension of the elastic band corresponding to the smaller-diameter waist region needs to be larger, and the tension of the elastic band corresponding to the larger-diameter hip region needs to be smaller, so as to better fit the body and make the tightness of the elastic band felt at each location uniform and consistent.
[0008] On the basis of the above scheme, further improvements are as follows: the inner elastic band layer and the outer elastic band layer each include five elastic bands arranged at intervals along the width direction thereof.
[0009] On the basis of the above scheme, further improvements are as follows: the outer layer at the edge of the leg opening is provided with a sponge strip.
[0010] The beneficial effects of this technical solution are as follows: Firstly, the sponge strip along the outer layer of the leg circumference provides good breathability and sweat absorption. The groin area, corresponding to the leg circumference, is hot and prone to sweating, affecting physiological health. The sponge strip, positioned on the outer layer, directly contacts the skin of the groin area, effectively absorbing sweat and thus solving the above problems. Secondly, the sponge strip's elasticity allows it to better support the legs. During leg movement, the underwear stretches, especially in the leg circumference area, which tends to curl and lift towards the groin. The sponge strip effectively addresses this issue.
[0011] Based on the above scheme, the following improvements are made: the cuts on the pearl cotton layer include multiple rows spaced apart along the width direction of the pearl cotton layer, and the cuts of any two adjacent rows are staggered in the vertical direction.
[0012] The beneficial effects of this technical solution are: the multiple rows of staggered cuts prevent tearing at the cuts during tensioning and make the cuts more evenly distributed for better ventilation.
[0013] Based on the above scheme, the following improvement is made: a portion of the non-woven elastic fabric layer wraps around the outer elastic layer, the pearl cotton layer and the inner elastic layer and is located between the inner elastic layer and the sponge layer.
[0014] Based on the above solution, the following improvements are made: a knitted fabric lining is attached to the inside of the sanitary pants body corresponding to the crotch area. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the planar structure of a composite elastomer disposable close-fitting sanitary pant of the present invention before folding; Figure 2 for Figure 1 A schematic diagram of the structure after folding; Figure 3 A cross-sectional view of the composite elastomer at the waistline; Figure 4 This is a partial front view of the structure of pearl cotton; Figure 5 This is a cross-sectional view of the composite elastomer at the waist in another embodiment; In the diagram: 1-The main body of the sanitary pants, 11-Waist circumference, 111-Upper side, 112-Lower side, 12-Leg circumference, 121-Sponge strip, 2-Composite elastomer, 21-Sponge layer, 22-Inner elastic layer, 221-225 are the first to fifth elastic bands, 23-Pearl cotton layer, 231-Slit, 24-Outer elastic layer, 25-Non-woven elastic fabric layer, 251-Folded non-woven elastic fabric, 26-Knitted lining, G-Human height direction. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0017] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0018] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0019] The features and performance of the present invention will be further described in detail below with reference to embodiments.
[0020] A specific embodiment of the composite elastomer disposable close-fitting sanitary pants of the present invention: as follows Figures 1-4 As shown, the composite elastomer disposable sanitary panty includes a panty body 1. In this embodiment, the disposable sanitary panty refers to disposable underwear; in other embodiments, it can also be a diaper, sanitary napkin, or other sanitary panty. The panty body 1 includes a waistband 11 and leg circumference 12. For example... Figures 1-2 As shown, the waist circumference 11 is formed by folding a flat fabric with an upper side 111 and a lower side 112 and then connecting the two ends of the upper and lower side 112. Both the upper side 111 and the lower side 112 include a composite elastomer 2. The composite elastomer 2 includes, from top to bottom, a strip-shaped sponge layer 21, an inner elastic layer 22, a pearl cotton layer 23, an outer elastic layer 24, and a non-woven elastic fabric layer 25. Figure 2 , 3As shown, when the upper and lower sides 112 are connected to form the waist circumference 11, the two sponge layers 21 are attached to each other to form the inner layer structure. Before the upper and lower sides are connected, the preset tension of the inner elastic layer 22 is greater than the preset tension of the outer elastic layer 24. The pearl cotton layer 23 is provided with multiple slits 231, and the length of the slits 231 extends along the width direction of the pearl cotton layer.
[0021] When in use, the sponge layer 21 conforms to the skin, offering breathability, sweat absorption, and reduced tension from the elastic band, while also possessing its own elasticity. The double-layer design of the inner elastic band layer 22 and the outer elastic band layer 24 ensures sufficient elasticity to prevent slippage. Compared to a single layer, the double-layer design distributes elasticity more evenly and disperses, preventing excessive concentration of elasticity and reducing tightness and marks. The pearl cotton layer 23 reduces tension from the outer elastic band layer 24, enhancing fit and providing cushioning for greater comfort, a key factor in reducing marks. Combined with the inner sponge layer 21, this completely eliminates marks, significantly improving fit and comfort. Furthermore, it features multiple slits 231 that, when worn, are stretched and deformed, becoming open. This further improves its breathability. The elastic difference between the inner elastic layer 22 and the outer elastic layer 24 is mainly to compensate for the deformation of the outer elastic layer 24, which is located on the outer ring, after the upper and lower sides are combined to form the waist circumference 11 and after wearing. If the tension of the inner elastic layer 22 and the outer elastic layer 24 is the same before the waist circumference 11 is formed, it will lead to inconsistent or unbalanced tension of the inner and outer elastic layers 24 when wearing, or cause wrinkles in the inner layer, or the inner elastic layer 22 not playing an elastic role. This application solves the above problems by making the preset tension of the inner elastic layer 22 greater than the preset tension of the outer elastic layer 24 before the waist circumference 11 is formed, similar to applying prestress, to compensate for the subsequent tension difference.
[0022] More specifically, both the inner elastic layer 22 and the outer elastic layer 24 include multiple elastic bands spaced apart along their width, with the preset tension of each elastic band increasing sequentially from the leg circumference 12 towards the waist circumference 11. Multiple elastic bands offer the advantage of more dispersed tension compared to a single band, minimizing the feeling of tightness. The design of decreasing tension from top to bottom for each elastic band is due to the physiological curve of increasing diameter in the waist and hip areas covered by the waist circumference 11. For better fit, the elastic band tension in the area corresponding to the smaller diameter waist needs to be greater, while the elastic band tension in the area corresponding to the larger diameter hip needs to be less, ensuring a better fit and uniform tension from the elastic bands throughout.
[0023] Both the inner elastic layer 22 and the outer elastic layer 24 include five elastic bands (reference numerals 221-225) spaced apart along their width. For example... Figure 2 ,3 As shown, a sponge strip 121 is provided on the outer layer of the leg circumference 12. The sponge strip 121 along the inner layer of the leg circumference 12 has the following advantages: First, it provides good breathability and sweat absorption, as the groin area corresponding to the leg circumference is hot and prone to sweating, affecting physiological health. The sponge strip, positioned on the outer layer, directly contacts the skin of the groin area, effectively absorbing sweat and thus solving the above problem. Second, because the sponge strip 121 has a certain degree of elasticity, it can better support the leg. During leg movement, the underwear stretches, especially in the leg circumference 12 area, which tends to curl and lift towards the groin. The sponge strip 121 effectively solves this problem.
[0024] like Figure 4 As shown, the slits 231 on the pearl cotton layer include multiple rows spaced apart along the width direction of the pearl cotton layer. Five rows are shown in the figure. The slits 231 in any two adjacent rows are staggered in the vertical direction. The multiple rows of staggered slits 231 have the effect of preventing tearing at the slits 231 during tension and making the distribution of the slits 231 more even, thus maximizing breathability. A knitted fabric lining 26 is attached to the inside of the sanitary pant body 1 corresponding to the crotch area to absorb sweat and moisture.
[0025] like Figure 5 As shown, in another embodiment, a portion of the nonwoven elastic fabric layer 25 wraps around the outer elastic layer 24, the pearl cotton layer 23 and the inner elastic layer 22 and is located between the inner elastic layer 22 and the sponge layer 21.
[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.
Claims
1. A composite elastomer disposable close-fitting sanitary panty, comprising a sanitary panty body, the sanitary panty body including a waistband and leg openings, wherein the waistband is formed by folding a flat fabric having upper and lower side edges and then connecting the two ends of the upper and lower side edges, characterized in that, Both the upper and lower sides include a composite elastomer, which includes a strip-shaped sponge layer, an inner elastic layer, a pearl cotton layer, an outer elastic layer, and a non-woven elastic fabric layer arranged sequentially from top to bottom. When the upper and lower sides are connected to form a waistband, the two sponge layers are attached to each other to form an inner layer structure. Before the upper and lower sides are connected, the preset tension of the inner elastic layer is greater than the preset tension of the outer elastic layer. The pearl cotton layer has multiple slits, and the length of the slits extends along the width direction of the pearl cotton layer.
2. The composite elastomer disposable close-fitting sanitary panty according to claim 1, characterized in that, The inner elastic layer and / or outer elastic layer each include multiple elastic bands spaced apart along their width, with the preset tension of each elastic band increasing sequentially from the leg circumference to the waist circumference.
3. The composite elastomer disposable close-fitting sanitary panty according to claim 1, characterized in that, Both the inner and outer elastic layers consist of five elastic bands spaced apart along their width.
4. The composite elastomer disposable close-fitting sanitary pants according to claim 1, characterized in that, The outer layer of the leg circumference is provided with a sponge strip at the edge.
5. The composite elastomer disposable close-fitting sanitary pants according to claim 1, characterized in that, The cuts on the pearl cotton layer include multiple rows spaced apart along the width of the pearl cotton layer, with the cuts of any two adjacent rows staggered in the vertical direction.
6. The composite elastomer disposable close-fitting sanitary pants according to claim 1, characterized in that, A portion of the non-woven elastic fabric layer wraps around the outer elastic layer, the pearl cotton layer, and the inner elastic layer, and is located between the inner elastic layer and the sponge layer.
7. The composite elastomer disposable close-fitting sanitary pants according to claim 1, characterized in that, The inside of the sanitary pants has a knitted fabric lining corresponding to the crotch area.