Anti-reverse-seepage and anti-side-leakage one-way moisture-conducting weft-knitted fabric applied to physiological trousers

Abstract

The anti-reverse-seepage and anti-side-leakage one-way wet-guiding weft-knitted fabric comprises a skin attaching layer, an absorption layer and an anti-leakage layer which are sequentially connected, the skin attaching layer comprises a skin attaching face and a hydrophilic diffusion face, the water guiding and absorbing capacity of the hydrophilic diffusion face is larger than that of the skin attaching face, and the anti-leakage layer is arranged on the skin attaching face. The water absorption capacity of the absorption layer is larger than that of the skin-attaching layer, the skin-attaching face is formed by weaving hydrophobic yarn Y1, the hydrophilic diffusion face is formed by weaving the hydrophobic yarn Y1, hydrophobic yarn Y2 and hydrophilic yarn Y3 together, and the number of fibers in the hydrophilic yarn is larger than the number of the fibers in the hydrophobic yarn Y1 and the number of the fibers in the hydrophobic yarn Y2. Wherein the hydrophobic yarns Y2 and the hydrophilic yarns Y3 are alternately arranged at intervals to form an interval water-blocking tape in the longitudinal direction, so that water is blocked by the interval water-blocking tape during longitudinal diffusion and is not blocked in the transverse direction. The one-way wet-guiding and anti-side-leakage anti-reverse-osmosis quilt cover is flexible and changeable, can meet different appearance designs, has the one-way wet-guiding function, the anti-side-leakage function and the anti-reverse-osmosis function, and improves the attractiveness.

Description

Technical Field

[0001] This utility model belongs to the field of functional menstrual pants fabric technology, specifically a unidirectional moisture-wicking weft knitted fabric for menstrual pants that prevents backflow and side leakage. Background Technology

[0002] With the continuous progress of the times and the continuous improvement of people's living standards, people's thoughts are no longer bound by the feudal superstitions of the past. More people are paying attention to women's health and menstrual health, so that women can be free during menstruation. As a result, more and more menstrual products have appeared on the market. The main menstrual products on the market now are: (1) Sanitary napkins; they are not ideal in terms of absorption, easily breed bacteria, and have the risk of gynecological inflammation. They can feel stuffy in hot weather and produce an odor. Some people are allergic to sanitary napkins. (2) Tampons; they feel like a foreign object and are inconvenient to observe the flow and color of menstrual blood. If they are not changed in time, they may cause dryness and gynecological inflammation. Some women are allergic to certain components in tampons. They are relatively expensive. (3) Overnight panties; they are inconvenient to change, have poor breathability, and feel stuffy after wearing them for a long time. They are expensive. (4) Menstrual cups; they are not easy to use at first and may leak. They need to be cleaned and disinfected properly.

[0003] Most menstrual products on the market are designed for when menstruation has already begun. However, menstruation is unpredictable. To avoid the embarrassment of an unexpected period, some people choose to use sanitary pads in advance as a precaution. However, frequent use of sanitary pads outside of menstruation prevents the genital area from breathing freely and also results in unnecessary waste. Tampons, being insertable, are more likely to cause dryness and difficulty in insertion and removal when used outside of menstruation.

[0004] With the traditional menstrual product market gradually becoming saturated, and women increasingly prioritizing health and environmental protection, more and more women are turning their attention to reusable products like menstrual panties. As a new type of menstrual care product, menstrual panties offer greater comfort, better leak-proof performance, and a longer lifespan, making them increasingly popular with consumers. Therefore, developing a new, comfortable, breathable, multi-functional, anti-backflow, and leak-proof one-way moisture-wicking fabric for menstrual panties is imperative. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a unidirectional moisture-wicking weft-knitted fabric for use in menstrual pants to prevent backflow and side leakage.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A unidirectional moisture-wicking weft-knitted fabric for preventing backflow and side leakage in menstrual panties includes a skin-contact layer, an absorbent layer, and a leak-proof layer connected in sequence. The skin-contact layer includes a skin-contact surface and a hydrophilic diffusion surface. The water-wicking capacity of the hydrophilic diffusion surface is greater than that of the skin-contact surface. The absorbent layer has a greater water-absorbing capacity than the skin-contact layer. The skin-contact surface is woven from hydrophobic yarn Y1. The hydrophilic diffusion surface is woven from hydrophobic yarn Y1, hydrophobic yarn Y2, and hydrophilic yarn Y3. The number of fibers in the hydrophilic yarn is greater than the number of fibers in the hydrophobic yarn Y1 and hydrophobic yarn Y2. The hydrophobic yarn Y2 and hydrophilic yarn Y3 are arranged alternately to form a water-blocking band in the longitudinal direction, so that water is blocked by the water-blocking band when diffusing in the longitudinal direction, but is not blocked in the transverse direction.

[0008] The leak-proof layer is made of a breathable polymer film material.

[0009] The absorbent layer is made of a fabric with water-retaining function.

[0010] The skin-contact surface is made of hydrophobic yarn Y1, which is woven into a plain or jacquard mesh structure by combining loops and tucks, with a mesh area of ​​0% ≤ 60%.

[0011] In the hydrophilic diffusion surface, 4 ≤ the ratio of the number of hydrophilic yarns Y3 to the number of hydrophobic yarns Y2 ≤ 12.

[0012] The contact angle of the hydrophobic yarn Y1 is θ > 100°, preferably 120° < θ < 160°, the yarn diameter is 20D-150D, preferably 30D-75D, and the fiber count is 12F-96F, preferably 12F-48F.

[0013] The contact angle θ of the hydrophobic yarn Y2 is greater than 90°, preferably 110° < θ < 150°, the yarn diameter is 20D-150D, preferably 40D-100D, and the fiber count is 24F-96F, preferably 24F-48F; the contact angle θ of the hydrophilic yarn Y3 is less than 60°, preferably 0°-20°, the yarn diameter is 30D-150D, preferably 40D-100D, and the fiber count is 96F-288F. 1 ≤ the ratio of the thickness of the hydrophilic yarn Y3 to the hydrophobic yarn Y2 is ≤ 1.5, 2 ≤ the ratio of the fiber count of the hydrophilic yarn Y3 to the hydrophobic yarn Y2 is ≤ 8.

[0014] The content of hydrophobic yarn Y1 in the skin-contact surface is 100%, and the content of hydrophobic yarn Y1, hydrophobic yarn Y2 and hydrophilic yarn Y3 in the hydrophilic diffusion surface is Y1+Y2+Y3=100%, wherein the content ratio is Y3>Y2>Y1, 10%≤Y1+Y2≤30%, and 95%≤Y2+Y3≤98.4%.

[0015] Both the skin-contact surface and the hydrophilic diffusion surface are woven together using a structure of loops, clusters, and / or floating threads to create a decorative appearance.

[0016] Both the skin-contact surface and the hydrophilic diffusion surface are provided with mesh, wherein the area of ​​the mesh on the skin-contact surface is less than or equal to 50% of the total area of ​​the skin-contact surface; and the area of ​​the mesh on the hydrophilic diffusion surface is less than 25% of the total area of ​​the skin-contact surface.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] By utilizing two layers with different absorbent capacities within the skin-contact layer, moisture can be rapidly and unidirectionally conducted from the skin-contact surface towards the hydrophilic diffusion surface. Simultaneously, the water-blocking properties of the hydrophilic diffusion surface provide longitudinal water resistance, allowing for rapid transverse moisture conduction and preventing side leakage. In use, simply treat the fabric's longitudinal direction as the transverse direction. Different combinations of weave structures can create diverse appearances such as pique, bird's-eye, and invisible mesh, enhancing aesthetics and meeting various needs. Attached Figure Description

[0019] Figure 1 This is an exploded view of the present invention;

[0020] Figure 2 This is an exploded view of the skin-adhesive layer in this utility model;

[0021] Figure 3 This is a schematic diagram of a weaving method according to the present invention;

[0022] Figure 4 This is a schematic diagram of a knitting needle arrangement during the knitting process in this utility model;

[0023] Figure 5 This is a schematic diagram of the triangular arrangement of this utility model. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of this invention, it should be understood that if terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0027] like Figure 1-3 As shown, a unidirectional moisture-wicking weft-knitted fabric for preventing backflow and side leakage in menstrual pants includes a skin-contact layer 3, an absorbent layer 2, and a leak-proof layer 1 connected in sequence. The skin-contact layer 3 includes a skin-contact surface 31 and a hydrophilic diffusion surface 32. The water-wicking capacity of the hydrophilic diffusion surface 32 is greater than that of the skin-contact surface 31. The absorbent capacity of the absorbent layer 2 is greater than that of the skin-contact layer 3. The skin-contact surface 31 is woven from hydrophobic yarn Y1. The hydrophilic diffusion surface 32 is woven from hydrophobic yarn Y1, hydrophobic yarn Y2, and hydrophilic yarn Y3. The number of fibers in the hydrophilic yarn is greater than the number of fibers in the hydrophobic yarn Y1 and hydrophobic yarn Y2. The hydrophobic yarn Y2 and hydrophilic yarn Y3 are alternately arranged to form a water-blocking band 4 in the longitudinal direction, so that water is blocked by the water-blocking band when diffusing in the longitudinal direction, but is not blocked in the transverse direction. In the hydrophilic diffusion surface, 4 ≤ the ratio of the number of hydrophilic yarn Y3 to the number of hydrophobic yarn Y2 ≤ 12. Utilizing the strong absorbency of the hydrophilic diffusion surface, moisture can be quickly guided from the skin-contact side to the hydrophilic diffusion surface, thus achieving a one-way moisture wicking function. It is flexible and versatile, accommodating various appearance designs, combining one-way moisture wicking, side leakage prevention, and backflow prevention functions while enhancing aesthetics.

[0028] Among them, the anti-backflow function uses the hydrophobic yarns on the skin-contacting surface to lock in moisture, preventing moisture from seeping out. This achieves the purpose of preventing moisture from easily penetrating the skin-contacting surface and thus preventing backflow.

[0029] The anti-leakage function utilizes the alternating arrangement of hydrophobic yarns Y2 and hydrophilic yarns Y3 in the hydrophilic diffusion surface 32, forming a water-blocking interval 4. This prevents water from spreading longitudinally due to the hydrophobic yarns of the water-blocking interval, causing it to spread rapidly laterally, thus achieving the anti-leakage function.

[0030] The unidirectional moisture-wicking function is mainly achieved through the hydrophobicity of the skin-contact surface 31 and the hydrophilicity of the hydrophilic diffusion surface 32, the water absorption function of the absorbent layer, and the difference in the number of fibers in the yarns on the skin-contact surface and the hydrophilic diffusion surface, which forms capillary channels. This capillary wicking effect is then utilized to achieve the unidirectional moisture-wicking function. In garment design, the fabric is used horizontally in both the longitudinal and transverse directions to achieve the side leakage prevention function.

[0031] The main function of the absorbent layer 2 is to quickly absorb and store the moisture in the skin-adhesive layer to prevent leakage, which greatly enhances the one-way moisture-wicking ability; it mainly uses materials such as terry cloth fabric with good water retention and fast moisture absorption.

[0032] The main function of the leak-proof layer 1 is to prevent water and leaks. It uses a high-molecular breathable membrane and other materials, which are both breathable and prevent side leakage, ensuring women's comfort.

[0033] The contact angle of the hydrophobic yarn Y1 is θ > 100°, preferably 120° < θ < 160°, the yarn diameter is 20D-150D, preferably 30D-75D, and the fiber count is 12F-96F, preferably 12F-48F. It can be selected as polyester or nylon, cotton or Modal cotton coarse yarn.

[0034] The contact angle θ of the hydrophobic yarn Y2 is >90°, preferably 110° < θ < 150°, the yarn diameter is 20D-150D, preferably 40D-100D, and the fiber count is 24F-96F, preferably 24F-48F; the contact angle θ of the hydrophilic yarn Y3 is <60°, preferably 0°-20°, the yarn diameter is 30D-150D, preferably 40D-100D, and the fiber count is 96F-288F. 1 ≤ the ratio of the thickness of the hydrophilic yarn Y3 to the hydrophobic yarn Y2 is ≤1.5, 2 ≤ the ratio of the fiber count of the hydrophilic yarn Y3 to the hydrophobic yarn Y2 is ≤8, and it can be selected as polyester or nylon, cotton, or Modal cotton coarse yarn.

[0035] By limiting the performance parameters of the above-mentioned hydrophobic yarns Y1, Y2, and Y3, optimal hydrophobicity and hydrophilicity are achieved, ensuring sufficient moisture-wicking performance.

[0036] The content of hydrophobic yarn Y1 in the skin-contact surface is 100%, and the content of hydrophobic yarn Y1, hydrophobic yarn Y2 and hydrophilic yarn Y3 in the hydrophilic diffusion surface is Y1+Y2+Y3=100%, with the content ratio of Y3>Y2>Y1, 10%≤Y1+Y2≤30%, 95%≤Y2+Y3≤98.4%. The hydrophilic yarn Y3 is used in the largest amount to ensure hydrophilicity and can effectively absorb and transfer moisture from the skin-contact surface to the hydrophilic diffusion surface in a timely manner.

[0037] In addition, the skin-contact side and the hydrophilic diffusion side can be woven together using looped, clustered, and / or floating thread structures to create decorative appearances, forming diverse looks such as pique, bird's eye, and invisible mesh, offering flexibility and versatility.

[0038] When mesh 5 is woven on both the skin-contact surface and the hydrophilic diffusion surface, the area of ​​the mesh on the skin-contact surface is less than or equal to 50% of the total area of ​​the skin-contact surface, so as to enhance its anti-backflow function; the area of ​​the mesh on the hydrophilic diffusion surface is less than 25% of the total area of ​​the skin-contact surface, so as to prevent weakening the rapid diffusion function of the hydrophilic diffusion surface.

[0039] The unidirectional moisture-wicking function requires the following: (1) AATCC 195, unidirectional transfer index OWTC ≥ 100; (2) AATCC 79, drip diffusion time ≤ 3S; (3) AATCC 201, quick-drying speed ≥ 1.0ml / h; (4) AATCC 197, wicking height in the weft direction ≥ 150mm in 30min. The unidirectional transfer index refers to the parameter for the transfer of moisture from the skin-contact surface to the hydrophilic diffusion surface.

[0040] The anti-backflow function ensures that water can quickly diffuse from the skin-contact surface to the hydrophilic diffusion surface after passing through the one-way moisture-wicking function. The hydrophobicity of the skin-contact yarn prevents water from flowing back to the skin-contact surface due to insufficient diffusion, thus effectively preventing backflow.

[0041] The anti-backflow function is tested by AATCC 195. The ratio of the water diffusion radius of the hydrophilic diffusion surface to that of the skin-contact surface is ≥1.5, and the ratio of the water absorption rate of the hydrophilic diffusion surface to that of the skin-contact surface is ≥1.65, ensuring that water will not seep back to the skin-contact surface.

[0042] By incorporating water-blocking strips within the hydrophilic diffusion surface, water is guided from the skin-contact surface to the hydrophilic diffusion surface via a one-way moisture-wicking function, and then rapidly diffuses. During warp climbing, after passing through several hydrophilic yarns Y3, the water encounters the hydrophobic yarn Y2, immediately slowing its climbing speed and eventually stopping, thus preventing side leakage. Its warp wicking height (AATCC 197 30min) is ≤80mm, and its weft wicking height (AATCC 197 30min) is ≥150mm.

[0043] The following production examples will provide further illustration.

[0044] 1. Includes a fabric body, which has a double-sided structure and achieves the functional effects of preventing backflow, preventing side leakage, and unidirectional moisture wicking, as well as the pattern appearance, through the arrangement and combination of yarns and structural matching.

[0045] 2. Furthermore, the fabric body is woven from countless smallest patterns in a loop. Each smallest pattern includes a 36-loop knitting system, with the hydrophilic diffusion surface composed of loops 1, 4, 7, 10, 13, 16, 19, 22, 25, 28, 31, and 34, and the skin-contact surface composed of loops 2, 3, 5, 6, 8, 9, 11, 12, 14, 15, 17, 18, 20, 21, 23, 24, 26, 27, 29, 30, 32, 33, 35, and 36. See attached diagram for details. Figure 3 .

[0046] 3. Implementation Case 1:

[0047] 4. A design for a one-way moisture-wicking menstrual panty with a skin-contact weft-knitted fabric that prevents backflow and side leakage, comprising the following steps:

[0048] 5. Step 1: Raw material selection. Three types of yarns, Y1, Y2, and Y3, are used for weaving. Y1 is 40D / 24F fully dull DWR hydrophobic treated nylon DTY, Y2 is 40D / 24F fully dull DWR hydrophobic treated nylon DTY, and Y3 is 40D / 96F fully dull nylon DTY. The skin-contact side uses all Y1 yarn, while the hydrophilic diffusion side uses Y2 and Y3, with 8 Y3 yarns and 2 Y2 yarns arranged alternately.

[0049] 6. Step Two: Machine Selection. Choose a 20-pin, 34-inch Handa double-sided circular knitting machine (see reference). Figure 4 As shown, we are knitting a double-sided jacquard fabric. We are using a knitting pattern of "1 1 1 1" for the purl needles and "1 2 1 3" for the knitting needles. There are 4 needles on the purl needle plate and 4 needles on the knitting cylinder in one cycle. The purl needle plate is arranged with needles of the same heel position (number 1). The knitting cylinder is arranged in a cycle with needles of 3 different heel positions (number 1, number 2, and number 3).

[0050] 7. Step 3: A triangular arrangement of 36 rows per cycle, with 36 rows corresponding to 36 horizontal rows. Rows 1, 4, 7, 10, 13, 16, 19, 22, 25, 28, 31, and 34 use a 100-needle feed of 250mm. Rows 2, 3, 5, 6, 8, 9, 11, 12, 14, 15, 17, 18, 20, 21, 23, 24, 26, 27, 29, 30, 32, 33, 35, and 36 use a 100-needle feed of 230mm. Figure 3 In the diagram, 'a' represents the 20th, 21st, 23rd, 24th, 26th, 27th, 29th, 30th, 32nd, 33rd, 35th, and 36th looping systems; 'b' represents the 19th, 22nd, 25th, 28th, 31st, and 34th looping systems; 'c' represents the 2nd, 3rd, 5th, 6th, 8th, 9th, 11th, 12th, 14th, 15th, 17th, and 18th looping systems; 'd' represents the 7th, 10th, 13th, and 16th looping systems; and 'e' represents the 1st and 4th looping systems.

[0051] 8. Step Four:

[0052] The triangular configuration is as follows: Following the order from the upper needle plate to the lower needle cylinder, for the knitting structures of the 1st, 4th, 7th, 10th, 13th, 16th, 19th, 22nd, 25th, 28th, 31st, and 34th knitting systems, the upper needle plate consists entirely of float units, and the lower needle cylinder consists entirely of knitting units. For the knitting structures of the 2nd, 3rd, 5th, 6th, 8th, 9th, 11th, 12th, 14th, 15th, 17th, 18th, 20th, 21st, 23rd, 24th, 26th, 27th, 29th, 30th, 32nd, 33rd, 35th, and 36th knitting systems, the upper needle plate consists entirely of knitting units, and the lower needle cylinder contains, in sequence, one float unit, one knitting unit, and two float units. See appendix for details. Figure 3-5 .

[0053] 9. Step 5: The finished fabric obtained after finishing is 135cm long and weighs 96g / m. 2 .

[0054] 10. Implementation Case Two:

[0055] 11. A design for a one-way moisture-wicking menstrual panty with a skin-contact weft-knitted fabric that prevents backflow and side leakage, comprising the following steps:

[0056] 12. Step 1: Raw material selection. Three types of yarns, Y1, Y2, and Y3, are used for weaving. Y1 is 75D / 48F fully dull DWR hydrophobic treated nylon DTY, Y2 is 75D / 48F fully dull DWR hydrophobic treated nylon DTY, and Y3 is 75D / 144F fully dull nylon DTY. The skin-contact side uses all Y1 yarn, while the hydrophilic diffusion side uses Y2 and Y3, with 10 Y3 yarns and 2 Y2 yarns arranged alternately.

[0057] 13. Step Two: Same as Implementation Case One.

[0058] 14. Step 3: A triangular arrangement of 36 rows per cycle, corresponding to 36 horizontal rows. Rows 1, 4, 7, 10, 13, 16, 19, 22, 25, 28, 31, and 34 use a 100-needle feed of 300mm. Rows 2, 3, 5, 6, 8, 9, 11, 12, 14, 15, 17, 18, 20, 21, 23, 24, 26, 27, 29, 30, 32, 33, 35, and 36 use a 100-needle feed of 270mm. See [link / description]. Figure 1 As shown.

[0059] 15. Step Four: Triangle configuration is the same as in Case Study One.

[0060] 16. Step 5: The finished fabric obtained after finishing is 146cm long and weighs 144g / m². 2 .

[0061] 17. Implementation Case 3:

[0062] 18. A design for a one-way moisture-wicking menstrual panty with a skin-contact weft-knitted fabric that prevents backflow and side leakage, comprising the following steps:

[0063] 19. Step 1: Raw material selection. Three types of yarns, Y1, Y2, and Y3, are used for weaving. Y1 is 75D / 36F fully dull DWR hydrophobic treated nylon DTY, Y2 is 100D / 48F fully dull DWR hydrophobic treated nylon DTY, and Y3 is 100D / 144F fully dull nylon DTY. The skin-contact side uses all Y1 yarn, while the hydrophilic diffusion side uses Y2 and Y3, with 12 Y3 yarns and 2 Y2 yarns arranged alternately.

[0064] 20. Step Two: Same as Implementation Case One.

[0065] 21. Step 3: Arrange the yarn in a triangular pattern in a 36-row cycle. The 36 rows correspond to 36 horizontal rows. The yarn feed for rows 1 and 4 is 310mm with 100 needles. The yarn feed for rows 7, 10, 13, 16, 19, 22, 25, 28, 31, and 34 is 300mm with 100 needles. The yarn feed for rows 2, 3, 5, 6, 8, 9, 11, 12, 14, 15, 17, 18, 20, 21, 23, 24, 26, 27, 29, 30, 32, 33, 35, and 36 is 270mm with 100 needles.

[0066] 22. Step Four: Triangular configuration is the same as in Case Study One.

[0067] 23. Step 5: The finished fabric obtained after finishing is 138cm long and weighs 188g / m. 2 .

[0068] 24. The above implementation examples are preferred implementations of this patent. In addition, this patent can be implemented in other ways. Any obvious substitutions without departing from the concept of this patent are within the scope of protection of this patent.

[0069] Formula data explanation

[0070] Table 1. Test results of a one-way moisture-wicking menstrual trouser weft-knitted fabric that prevents backflow and side leakage.

[0071]

[0072]

[0073] 1. According to the experimental results of Case 1, Case 2 and Case 3 in Table 1, it can be seen that by using hydrophobic yarn on the skin-contact side of the double-sided structure and using a combination of hydrophobic and hydrophilic yarns to form a water-blocking band on the hydrophilic diffusion side, a one-way moisture-wicking function can be achieved. Among them, the warp of AATCC 197 with a 30-minute climb is much smaller than the weft climb data because of the water-blocking band. Therefore, when the moisture diffuses longitudinally, it is blocked by the hydrophobic yarn water-blocking band and can only diffuse rapidly in the transverse direction. In the garment design, the fabric is used longitudinally and transversely, thus achieving the side leakage prevention function.

[0074] According to the experimental results of Case 1, Case 2, and Case 3 in Table 1, the water diffusion radius of the hydrophilic diffusion surface is more than 1.5 times larger than that of the skin-contact surface, and the water absorption rate of the hydrophilic diffusion surface is more than 1.65 times greater than that of the skin-contact surface. This indicates that after passing through the skin-contact surface and undergoing wicking effect, most of the water flows to the hydrophilic diffusion surface. During the diffusion process, due to the pressure of wearing the garment, and because the hydrophobic yarn of the skin-contact surface prevents water from easily seeping back to the skin-contact surface, the water will diffuse more rapidly on the hydrophilic diffusion surface, and then be absorbed by the fibers and evaporate.

[0075] It should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A reverse osmosis and side leakage prevention unidirectional wetness guide weft knitted fabric applied to a physiological pant, characterized in that, The skin layer, the absorption layer and the leakage-proof layer are sequentially connected, the skin layer comprises a skin surface and a hydrophilic diffusion surface, the water absorption capacity of the hydrophilic diffusion surface is greater than that of the skin surface, the water absorption capacity of the absorption layer is greater than that of the skin layer, the skin surface is knitted by hydrophobic yarn Y1, the hydrophilic diffusion surface is knitted by hydrophobic yarn Y1, hydrophobic yarn Y2 and hydrophilic yarn Y3, and the number of fibers in the hydrophilic yarn is greater than that of the hydrophobic yarn Y1 and the hydrophobic yarn Y2, wherein the hydrophobic yarn Y2 and the hydrophilic yarn Y3 are alternately arranged to form a spacing water-blocking belt in the longitudinal direction, so that the water is blocked in the longitudinal direction and is not blocked in the transverse direction.

2. The anti-backdyeing, side leakage resistant, single wicking weft fabric for use in physiological pants according to claim 1, characterized in that, The leakage-proof layer is made of a high-molecular thin film material with air permeability.

3. The anti-backdyeing, side leakage resistant, unidirectional wetness guide weft fabric for use in physiological pants according to claim 1, characterized in that, The absorption layer is made of a fabric with water storage function.

4. The anti-backdyeing, side leakage resistant, unidirectional wetness guide weft fabric for use in physiological pants according to claim 1, characterized in that, The skin surface is knitted by hydrophobic yarn Y1 through loop formation and tuck arrangement to form a plain or jacquard mesh structure, and the mesh area is 0% to 60%.

5. The reverse leakage and side spill resistant, unidirectional wetness guide weft knitted fabric for use in physiological pants according to claim 1, characterized in that, In the hydrophilic diffusion surface, the number ratio of the hydrophilic yarn Y3 to the hydrophobic yarn Y2 is 4 to 12.

6. The anti-backdyeing, side leakage resistant, unidirectional wetness guide weft fabric for use in physiological pants according to claim 1, characterized in that, The contact angle of the hydrophobic yarn Y1 is greater than 100°, the wire diameter is 20D to 150D, and the number of fibers is 12F to 96F.

7. The anti-backdyeing, side leakage resistant, unidirectional wetness guide weft fabric for use in physiological pants according to claim 6, characterized in that, The contact angle of the hydrophobic yarn Y2 is greater than 90°, the wire diameter is 20D to 150D, and the number of fibers is 24F to 96F. The contact angle of the hydrophilic yarn Y3 is less than 60°, the wire diameter is 30D to 150D, the number of fibers is 96F to 288F, the thickness ratio of the hydrophilic yarn Y3 to the hydrophobic yarn Y2 is 1 to 1.5, and the number ratio of the hydrophilic yarn Y3 to the hydrophobic yarn Y2 is 2 to 8.

8. The anti-backdyeing, side leakage resistant, unidirectional wetness guide weft fabric for use in physiological pants according to claim 1, characterized in that, The content of the hydrophobic yarn Y1 in the skin surface is 100%, the content of the hydrophobic yarn Y1, the hydrophobic yarn Y2 and the hydrophilic yarn Y3 in the hydrophilic diffusion surface is Y1+Y2+Y3=100%, and the content ratio is Y3>Y2>Y1, Y1+Y2 is 10% to 30%, and Y2+Y3 is 95% to 98.4%.

9. The reverse leakage and side spill resistant, unidirectional wetness guide weft knitted fabric for use in physiological pants according to claim 1, characterized in that, The skin surface and the hydrophilic diffusion surface are knitted by the organizational structure of loop formation, tuck and / or float to form a decorative appearance.

10. The anti-backdyeing, side leakage resistant, unidirectional wetness guide weft fabric for use in physiological pants according to claim 1, characterized in that, The skin surface and the hydrophilic diffusion surface are both provided with mesh, wherein the area of the mesh of the skin surface is less than or equal to 50% of the total area of the skin surface, and the area of the mesh of the hydrophilic diffusion surface is less than 25% of the total area of the skin surface.

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