Sanitary napkin companion pants

The sanitary napkin companion pants made of a single piece of elastic inner core non-woven fabric solves the problems of poor elasticity and complex processing of underwear, achieves a close fit with the sanitary napkin and prevents side leakage, improves comfort and breathability, reduces production costs, and is suitable for women's use during menstruation.

CN114847546BActive Publication Date: 2025-09-05GUANGDONG QIANGDI WEICAI TECH CO LTD
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Patent Information

Application Number
CN202210480187.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-08-27
Filing Date
2022-05-05
Publication Date
2025-09-05
Estimated Expiration
2042-05-05

AI Technical Summary

Technical Problem

Existing underwear or menstrual pants have poor elasticity when used as sanitary napkins, making it difficult to maintain a close fit with private parts, prone to side leakage, and are complex to manufacture and costly, making it difficult to strike a balance between comfort and convenience.

Method used

The sanitary napkin companion pants are made of a single piece of elastic inner core non-woven fabric. They are compounded by two layers of non-woven fabric with sandwiched elastic fibers and dot-shaped connecting lines to form an elastic waist and thigh openings. Combined with a moisture-absorbing layer and a skin-friendly layer, they ensure breathability and comfort and simplify the production process.

Benefits of technology

The invention realizes a close fit with a sanitary napkin during the menstrual period to prevent side leakage, and can be used as ordinary underwear during the non-menstrual period, thereby simplifying production, reducing costs, improving comfort and breathability, and being easy to promote.

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Abstract

The present invention discloses a pair of sanitary napkin pants, comprising a pant body composed of a single piece of elastic inner core non-woven fabric. The elastic inner core non-woven fabric is composed of two non-woven fabric layers with a plurality of elastic fibers sandwiched therein, and is composited with a plurality of dot-shaped connecting lines perpendicular to the elastic fibers. The pant body is provided with an elastic waistband at the top thereof along the direction of the elastic fibers. Thigh openings are provided on both sides of the pant body, and both sides of the pant body and the edges of the thigh openings are provided with pressed edges. The pant body of the present invention is made of a single piece of elastic non-woven fabric, has a good balance of elasticity and breathability, provides excellent comfort, and has good strength and durability. It also facilitates the placement of the sanitary napkin, allowing the sanitary napkin to fit more closely to the female private area. The overall structure is simple, easy to replace, and has low production costs, making it easy to promote and use.
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Description

Technical Field

[0001] The present invention relates to the field of sanitary products, in particular to a pair of sanitary napkin companion pants. Background Art

[0002] The manufacturing process of ordinary underwear or menstrual pants currently on the market is relatively complicated. As disposable products, comfort, convenience of processing and low cost should be the top priority. However, it is difficult to strike a balance between comfort and cost for the products currently on the market. Especially when women use sanitary napkins, ordinary underwear has poor elasticity and requires cleaning and maintenance. It cannot ensure that the sanitary napkin and private parts are kept tightly together during women's activities, which can easily cause menstrual blood leakage, is inconvenient to operate, and increases the physical burden of the user during menstruation. In view of this, it is necessary to provide a new sanitary napkin companion panty to change this situation. The sanitary napkin companion panty can not only be used with sanitary napkins during women's menstrual period while taking into account the above two performance indicators, but can also be used as ordinary underwear outside of women's menstrual period, making it easy to promote. Summary of the Invention

[0003] In view of the technical defects existing in the background technology, the present invention proposes sanitary napkin companion pants, which solves the above technical problems and meets practical needs. The specific technical solutions are as follows:

[0004] Sanitary napkin companion pants, including a pants body composed of a single piece of elastic inner core non-woven fabric, the elastic inner core non-woven fabric is composed of two non-woven fabric layers and a plurality of elastic fibers sandwiched therebetween, and a plurality of dot-shaped connecting lines perpendicular to the elastic fibers are composited on the surface of the non-woven fabric layer, all elastic fibers are arranged between the non-woven fabric layers in intervals and in parallel, and the non-woven fabric layer is provided with an elastic space between any two adjacent dot-shaped connecting lines, the pants body is provided with a circle of elastic waistline at the top of the pants body along the direction of the elastic fibers, thigh openings are provided on both sides of the pants body, and pressed edges are provided on both sides of the pants body and the edges of the thigh openings.

[0005] According to a further technical solution of the present invention, the elastic waist is a physical structure of more than two layers formed by folding the non-woven fabric at the edge of the trouser body.

[0006] According to a further technical solution of the present invention, the elastic fibers at both ends of the elastic inner core non-woven fabric forming the elastic waistband are connected in alignment with each other at the pressed edge.

[0007] According to a further technical solution of the present invention, the tightness of the pressing points of the dot-shaped connecting lines is differentiated, including tight dot-shaped connecting lines and loose dot-shaped connecting lines, and the tight dot-shaped connecting lines and loose dot-shaped connecting lines are alternately arranged at equal intervals.

[0008] According to a further technical solution of the present invention, a moisture-absorbing layer is provided on the surface of the non-woven fabric layer on the inner side of the trouser body, and a skin-friendly layer is provided on the outer surface of the moisture-absorbing layer.

[0009] According to a further technical solution of the present invention, the moisture-absorbing layer is a water-absorbing non-woven fabric, and the skin-friendly layer is a cotton lining.

[0010] According to a further technical solution of the present invention, the moisture-absorbing layer and the skin-friendly layer are arranged along the crotch of the trouser body toward the top of the rear side of the trouser body.

[0011] The beneficial effects of the present invention are as follows: the trouser body is made of a single piece of elastic non-woven fabric, which ensures elasticity while taking into account air permeability, so that comfort when wearing is guaranteed to a certain extent, and at the same time, the strength in the non-elastic direction, especially in the direction of the bottom cover, is good, so that durability is also improved; there is no glue and no need for manual sewing, which is more hygienic, and the production is more convenient and efficient. It is breathable, tight and traceless, and does not need to be washed. It can be used with a sanitary napkin during the menstrual period. The independent packaging is convenient to carry and easy to replace, and the sanitary napkin can be directly replaced; it can be used as ordinary underwear during the non-menstrual period, and it also has a certain moisture absorption performance, can absorb a certain amount of moisture and water, and can deal with emergency situations; and the overall structure is relatively simple and the production cost is low, so it is easy to promote and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the elastic inner core non-woven fabric of the trouser body after cutting.

[0013] Figure 2 It is a schematic diagram of the main structure of the present invention.

[0014] Figure 3 It is a side structural schematic diagram of the present invention.

[0015] Figure 4 Schematic diagram of the cross section of the elastic core non-woven fabric.

[0016] Figure 5 Schematic diagram of the surface structure of the trouser body.

[0017] Figure 6 for Figure 3 Schematic diagram of the structure in the AA direction.

[0018] Wherein: non-woven fabric layer 1, elastic fiber 2, elastic fiber 20, dotted connecting line 3, tight dotted connecting line 30, non-tight dotted connecting line 31, elastic space 4, elastic waist 5, thigh opening 6, pressed edge 7, sponge layer 8, moisture absorption layer 9, skin-friendly layer 10. DETAILED DESCRIPTION

[0019] The following describes the implementation of the present invention in conjunction with the accompanying drawings and relevant embodiments. The implementation of the present invention is not limited to the following embodiments, and the present invention relates to the relevant necessary components in this technical field, which should be regarded as the common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0020] Combine Figures 1 to 4 As shown, the sanitary napkin companion pants include a trouser body composed of a single piece of elastic inner core non-woven fabric, the elastic inner core non-woven fabric is composed of two layers of non-woven fabric layers 1 and a plurality of elastic fibers 2 sandwiched therein, and a plurality of dot-shaped connecting lines 3 perpendicular to the elastic fibers 20 are composited on the surface of the non-woven fabric layer 1. All elastic fibers 20 are arranged between the non-woven fabric layers 1 at intervals and in parallel, and the non-woven fabric layer 1 is provided with an elastic space 4 between any two adjacent dot-shaped connecting lines 3. The trouser body is provided with a circle of elastic waist 5 at the top of the trouser body along the direction of the elastic fibers 20, and thigh openings 6 are provided on both sides of the trouser body. The edges of the two sides of the trouser body and the thigh openings 6 are provided with pressed edges 7.

[0021] In the present invention, combined with Figure 1 As shown, according to the production method of non-woven fabrics, from the perspective shown in the drawing, the left and right directions are the production directions of the non-woven fabrics, so the left and right width directions are defined as the longitudinal directions of the non-woven fabrics, and the upper and lower length directions are defined as the transverse directions.

[0022] In combination with the above content, the elastic fiber layer 2 composed of a plurality of elastic fibers 20 arranged in parallel along the longitudinal direction gives the non-woven fabric as a whole longitudinal elastic performance, and the raised elastic space between the non-woven fabric layers 1 gives the non-woven fabric as a whole an elastic deformation margin based on the elastic space 4 in the longitudinal direction, that is, the elastic direction.

[0023] In the transverse direction, since it does not have the ability of elastic deformation, there is no elastic space to provide deformation margin, and the fastening points formed by the pressure points of the point-shaped connecting lines 3 are regarded as reinforcement structures, so that the strength performance in the transverse direction, that is, the non-elastic direction, is guaranteed.

[0024] The pressure points on the dot-shaped connecting lines 3 can be formed between the elastic fibers 2 , the dot-shaped connecting lines 3 and the non-woven fabric layer 1 by ultrasonic point pressing, gluing, spraying or rolling glue.

[0025] It should be pointed out that the sanitary napkin companion pants described in the present invention cannot be used alone as a substitute for sanitary napkins. The reason is that the elastic inner core non-woven fabric of the main part does not have the ability to absorb a large amount of liquid, and can only absorb a small amount of moisture. It needs to be used in combination with a finished sanitary napkin. It cannot be regarded as a substitute for menstrual pants, but more like a better substitute for disposable underwear. Its elastic inner core non-woven fabric structure will not produce excessive tension on women's skin. The sanitary napkin can be replaced directly and quickly without worrying about the impact on the companion pants, and it will not cause embarrassment to women when changing sanitary napkins in public.

[0026] During menstruation, women are more sensitive to the feeling of wearing. Therefore, with the support of the elastic space, the elastic deformation force brought by the elastic fiber 20 will be more comfortable than the elastic film or rubber band due to its own elastic coefficient and arrangement. It will not cause the trousers to be loose due to too low elasticity, thus avoiding the accident of the trousers becoming loose when worn; in addition, the dotted connecting lines 3 will make the trousers stronger, making it less likely for users to be embarrassed by the damage of the trousers during daily activities; at the same time, the simplification of the fastening structure is also conducive to the simplification of production and manufacturing, and the packaging is more efficient and convenient. There is no need to consider the issue of the folding method affecting the convenience of unfolding the trousers, so that users can use them more conveniently and comfortably.

[0027] Reference Figure 2 and Figure 3 As shown, the most important thing about underwear is that it fits the wearer's waist and legs. The elastic direction of the elastic fibers 20 surrounds the underwear body around the wearer's waist and groin, while the elastic fibers 20 of the thigh openings 6 pull the wearer's abdomen, lower body and buttocks from the wearer's abdomen and buttocks, based on the pressed edges 7 where the wearer's groin and waist are located, thereby forming a more comfortable wearing structure.

[0028] While sanitary napkins utilize their own hot-melt adhesive to adhere to the inside of women's underwear during use, securing and preventing slippage, the underwear also needs to be used to prevent side leakage. In the present invention, the transverse arrangement of the elastic fibers 20, combined with the pressure edges 7 of the thigh openings 6, effectively creates a pocket-like structure on both sides of the sanitary napkin, allowing the sides of the napkin to fit more closely against the wearer's private parts. This allows the sanitary napkin to provide better menstrual care through its simple and effective structure.

[0029] At the same time, since the elastic fiber layers 2 between the non-woven fabric layers 1 are separated by independent elastic fibers 20, the elastic fiber layers 2 have little effect on the air circulation between the non-woven fabric layers 1, so that the present invention as a whole has better breathability that the elastic film non-woven fabric does not have; therefore, if used as medical supplies or underwear, it not only has good breathability, but also can fit closely to the human body, which can effectively improve the comfort during use and will not cause marks on the human body after long-term wearing.

[0030] The good elasticity and breathability brought by the structure of the present invention improve the comfort of wearing, allowing women to spend their menstrual period more smoothly and comfortably. Its simple and effective structure reduces the user's attention to the menstrual period, allowing them to better concentrate on their leisure activities or daily work, thereby improving the quality of daily life. The present invention can be used in conjunction with a matching sanitary napkin, and can be used as a daily menstrual companion panty during the day and as a nighttime menstrual companion panty at night. After the sanitary napkin is placed at the bottom of the panty, the user can more safely devote themselves to activities that require attention without worrying about side leakage.

[0031] The present invention is produced by combining Figure 1 In the manner shown, notches required for the thigh opening 6 are symmetrically cut at both ends of a whole piece of elastic inner core non-woven fabric in the longitudinal direction, and then the two ends in the transverse direction are aligned, and the joints and the edges of the thigh opening 6 are pressed together to complete the processing. In addition, the elastic inner core non-woven fabric as the base material of the present invention is also easy to produce. Furthermore, production is carried out in a workshop with a sterile environment, which can ensure that the surrounding environment does not cause pollution to the materials used to produce the elastic inner core non-woven fabric. In the process of producing the companion pants, there is no need to use chemical viscose to bond the materials, and there is no need to manually sew the elastic inner core non-woven fabric, which reduces the chance of the companion pants coming into contact with external bacteria, thereby making the companion pants more hygienic and safe, and the processing operation is more convenient and efficient. When packaging, independent packaging is used for easy carrying, and it can be used after opening the package. Therefore, the overall manufacturing of the present invention is simple and convenient, and easy to promote.

[0032] According to a further technical solution of the present invention, the elastic waist 5 is a physical structure of more than two layers formed by folding the non-woven fabric at the edge of the trouser body.

[0033] In order to improve the elastic performance of the elastic waistband 5, as a structural form required for simplifying production, the present invention can fold the non-woven fabric structure at the elastic waistband 5 or further fold it after folding to form a multi-layer structure, thereby increasing the number of elastic fibers 20 per unit area, thereby improving the elastic force of the elastic waistband 5. Combined with the breathability of the elastic inner core non-woven fabric of the base material used in this application, even if the elastic waistband 5 is thickened, it will not have a significant impact on the breathability, so that the user's waist can also have a good breathable feeling, which can reduce the discomfort in the lower abdomen caused by menstruation, which is particularly important for women during menstruation.

[0034] At the same time, generally speaking, the elastic waist 5 of the trouser body also needs to be pressed edge treatment, so that the overall structure of the trouser body can maintain sufficient stability and is not easy to become loose due to the user's wearing. Especially after forming a physical structure of more than two layers, the elastic waist 5 after pressing edge treatment will enhance the user's comfort when wearing the companion pants.

[0035] Reference Figure 3 As shown, a further technical solution of the present invention is that, on the elastic inner core non-woven fabric forming the elastic waist 5, the elastic fibers 20 at both ends thereof are aligned and connected to each other at the pressing edge 7.

[0036] In order to make the elastic waist 5 structure composed of elastic fibers 20 have better contraction force, during molding, it is preferred to align the two ends of each elastic fiber 20 with the two ends of another elastic fiber 20, so that the elastic fibers 20 form a closed loop of elastic fiber ring after the edge pressing operation, so as to better form the contraction effect, which will be more stable and durable when worn. In a more uniformly compressed environment, the user's waist will be less sensitive to the trouser body when worn, which will help reduce the discomfort of women during menstruation.

[0037] Reference Figure 4 As shown, a further technical solution of the present invention is that the dotted connecting lines 3 are differentiated by the tightness of the pressing points, including tight dotted connecting lines 30 and non-tight dotted connecting lines 31, and the tight dotted connecting lines 30 and non-tight dotted connecting lines 31 are alternately arranged at equal intervals.

[0038] When the dotted connecting lines 3 have two different pressure point tightnesses, they exhibit a gradient of elastic deformation under the ultimate tensile force applied to the pressure points of the non-tight dotted connecting lines 31. In other words, when the tensile force exceeds the adhesion strength of the pressure points of the non-tight dotted connecting lines 31, the pressure points separate, allowing adjacent elastic spaces 4 to merge into a larger elastic space 4 enclosed by the tight dotted connecting lines 30. While this process is irreversible, the increased size of the elastic spaces 4 indirectly enhances the longitudinal elastic deformation capacity, providing a certain degree of adjustability and cushioning during use of the disposable underwear, thus expanding the potential for application in a wider range of situations.

[0039] For example, when side leakage or seepage occurs during menstruation, the companion pants can make it easier for the user to take out or put in the sanitary napkin through the elastic deformation of the elastic space 4.

[0040] Furthermore, comparing companion pants with ordinary confinement pants, it is obvious that ordinary confinement pants need to be changed 2-3 times a day, and they need to be washed after each change before they can be used again, while companion pants can be discarded together with sanitary napkins, so there is no need to worry about cleaning.

[0041] In addition, during special times such as business trips, the space for the carry-on items is limited, and the companion pants have a simple structure, are easy to fold and store, are convenient to take out, and will not affect the carry-on of the user.

[0042] Reference Figure 5 As shown, a further technical solution of the present invention is that a sponge layer 8 is provided between the two non-woven fabric layers 1 on the inner side of the pressing edge 7, the inner edge of the sponge layer 8 is arc-shaped, and the inner edge of the sponge layer 8 is pressed between the two non-woven fabric layers 1 through a dotted connecting line 3, and the sponge layer 8 protrudes toward the surface of the non-woven fabric layer 1.

[0043] The raised sponge layers 8 on both sides of the non-woven fabric layer 1 form a position for placing the sanitary napkin on the inner side of the trouser body. After the sanitary napkin is inserted into the inner side of the bottom end of the trouser body, the elastic space 4 elastically deforms and shrinks, driving the sponge layer 8 to tighten the two sides of the sanitary napkin, thereby wrapping the outer side of the sanitary napkin and gathering the sanitary napkin inward, so that the sanitary napkin fits the female private area more closely; the inner side of the sponge layer 8 is fixed by the dotted connecting lines 3, which can prevent the position of the sponge layer 8 from shifting and more effectively maintain the stability of the position of the sanitary napkin; it can be used in conjunction with the sanitary napkin during the menstrual period and can be used as a sanitary napkin companion during the day.

[0044] Reference Figure 6 As shown, a further technical solution of the present invention is that a moisture-absorbing layer 9 is provided on the surface of the non-woven fabric layer 1 at the inner side of the trouser body, and a skin-friendly layer 10 is provided on the outer surface of the moisture-absorbing layer 9. The moisture-absorbing layer 9 is a water-absorbing non-woven fabric, and the skin-friendly layer 10 is a cotton lining. The moisture-absorbing layer 9 and the skin-friendly layer 10 are arranged along the crotch of the trouser body toward the top of the back side of the trouser body.

[0045] The moisture-absorbing layer 9 can improve the moisture and water absorption performance of the companion pants, absorb sweat, moisture and urine during daily sweating and urination, and can also cope with emergency situations such as sudden menstrual blood outflow before and after the menstrual period; the skin-friendly layer 10 can improve the comfort when wearing the companion pants; the moisture-absorbing layer 9 and the skin-friendly layer 10 extend from the crotch to the top position of the back side of the pants body, so as to better prevent menstrual blood from leaking from the back side of the companion pants at night, and have a better anti-side leakage or leakage effect.

[0046] It should be pointed out that even if the moisture-absorbing layer 9 and the skin-friendly layer 10 are added, the sanitary napkin companion pants of the present invention cannot be regarded as a substitute for menstrual pants or a similar product. The reason is that the moisture-absorbing layer 9 is only a simple water-absorbing non-woven fabric, and the skin-friendly layer 10 is a cotton lining material with poor water absorption capacity. If it is a menstrual pants, the core part of the pants itself is required to have good water absorption and leakage prevention capabilities. However, in the present invention, the core part is not a true sanitary napkin core, but is provided to improve the comfort of wearing menstrual pants. Since people wear sanitary pants in their daily activities, It is easier to sweat when wearing a sanitary napkin, and moisture is easily accumulated even in daily activities. The moisture-absorbing layer 9 can absorb sweat or sweat vapor to a certain extent, making the groin area of ​​the human body drier and more comfortable. However, if the amount of sweat is too large or menstruation occurs, the companion pants cannot be used as a substitute for sanitary napkins or period pants to avoid leakage. Based on the elastic structure of the companion pants, the sanitary napkin can be better fitted to the user to help avoid leakage. The two work in coordination with each other, which is completely different from period pants in the general sense.

[0047] The beneficial effects of the present invention are as follows: the trouser body is made of a single piece of elastic non-woven fabric, which ensures elasticity while taking into account air permeability, so that comfort when wearing is guaranteed to a certain extent, and at the same time, the strength in the non-elastic direction, especially in the direction of the bottom cover, is good, so that durability is also improved; there is no glue and no need for manual sewing, which is more hygienic, and the production is more convenient and efficient. It is breathable, tight and traceless, and does not need to be washed. It can be used with a sanitary napkin during the menstrual period. The independent packaging is convenient to carry and easy to replace, and the sanitary napkin can be directly replaced; it can be used as ordinary underwear during the non-menstrual period, and it also has a certain moisture absorption performance, can absorb a certain amount of moisture and water, and can deal with emergency situations; and the overall structure is relatively simple and the production cost is low, so it is easy to promote and easy to use.

[0048] The above description is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A pair of sanitary napkin pants comprising a pant body composed of a single piece of elastic inner core non-woven fabric, characterized in that: The elastic inner core non-woven fabric is composed of two non-woven fabric layers and a plurality of elastic fibers sandwiched therebetween, and is composited on the surface of the non-woven fabric layer with a plurality of dot-shaped connecting lines perpendicular to the elastic fibers. All elastic fibers are arranged between the non-woven fabric layers at intervals and in parallel. The non-woven fabric layer is provided with an elastic space between any two adjacent dot-shaped connecting lines. The trouser body is provided with a circle of elastic waistband at the top end of the trouser body along the direction of the elastic fibers. Thigh openings are provided on both sides of the trouser body. Both sides of the trouser body and the edges of the thigh openings are provided with pressed edges. The tightness of the pressing points of the dot-shaped connecting lines is differentiated, including tight dot-shaped connecting lines and non-tight dot-shaped connecting lines. The tight dot-shaped connecting lines and the non-tight dot-shaped connecting lines are alternately arranged at equal intervals. When the tension applied to the trouser body exceeds the bonding strength of the pressure points of the non-tight dot-shaped connecting lines, the pressure points of the non-tight dot-shaped connecting lines are separated from the elastic fibers, and the adjacent elastic spaces enclosed by the tight dot-shaped connecting lines and the non-tight dot-shaped connecting lines are merged into a larger elastic space enclosed by the adjacent tight dot-shaped connecting lines.

2. The sanitary napkin companion pants according to claim 1, characterized in that: The elastic waist is a physical structure of more than two layers formed by folding the non-woven fabric at the edge of the trouser body.

3. The sanitary napkin companion pants according to claim 1 or 2, characterized in that: The elastic fibers at both ends of the elastic inner core non-woven fabric forming the elastic waistline are connected to each other in an aligned manner at the pressed edge.

4. The sanitary napkin companion pants according to claim 1, characterized in that: A moisture absorption layer is provided on the surface of the non-woven fabric layer at the inner side of the trouser body, and a skin-friendly layer is provided on the outer surface of the moisture absorption layer.

5. The sanitary napkin companion pants according to claim 4, characterized in that: The moisture-absorbing layer is a water-absorbing non-woven fabric, and the skin-friendly layer is a cotton lining.

6. The sanitary napkin companion pants according to claim 4, characterized in that: The moisture-absorbing layer and the skin-friendly layer are arranged along the crotch of the trouser body toward the top of the rear side of the trouser body.

Citation Information

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