A unidirectional moisture-wicking fabric and its weaving process

Abstract

This invention discloses a unidirectional moisture-wicking fabric and its weaving process, comprising a surface layer and an inner layer arranged sequentially from the outside to the inside. The surface layer includes an outer surface layer and an inner surface layer, the inner surface layer including mesh and a base. The inner layer includes a first region and a second region, with the mesh located above the first region. The inner surface layer and the inner layer form a cavity. The two second regions protrude upwards to form triangular apexes, and the inner layer is bonded to the base through the triangular apexes. This invention changes the cross-sectional shape of the fiber by altering the yarn fineness and increasing the yarn twist, thereby increasing the moisture-wicking properties of the fiber. Furthermore, the weaving structure increases the size and arrangement of the internal gaps of the multi-layered fabric, which is beneficial for moisture wicking. Finally, by changing the fabric density and weaving structure, it modifies traditional auxiliary fabrics, thereby increasing the fabric's stability and washability.

Description

Technical Field

[0001] This invention relates to the field of fabrics, and more specifically, to a unidirectional moisture-wicking fabric and its weaving process. Background Technology

[0002] Currently, unidirectional moisture-wicking fabrics on the market have finished agents attached to the fabric through finishing processes. Although the technology is mature and the cost is low, they have poor water resistance. Furthermore, due to frequent washing, some of the auxiliaries will fall off or randomly stick to the inside and outside of the fabric, resulting in a decrease in the unidirectional moisture-wicking properties of the fabric. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a unidirectional moisture-wicking fabric and its weaving process. By changing the fineness of the yarn and increasing the yarn twist, the cross-sectional shape of the fiber is changed, thereby increasing the moisture-wicking properties of the fiber. Furthermore, by increasing the size and arrangement of the internal gaps of the multi-layered fabric through the weaving structure, it is beneficial for moisture wicking. Moreover, by changing the fabric density and weaving structure, the traditional auxiliary fabric is modified, thereby increasing the stability and washability of the fabric.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a one-way moisture-wicking fabric, comprising a surface layer and an inner layer arranged sequentially from the outside to the inside, wherein the surface layer includes an outer surface layer and an inner surface layer, the inner surface layer includes a mesh and a base, the inner layer includes a first region and a second region, the mesh is located above the first region, the inner surface layer and the inner layer form a cavity, the two second regions protrude upward to form triangular apexes, and the inner layer is glued to the base through the triangular apexes.

[0005] The invention is further configured such that the cavity is inverted trapezoidal in shape, and the mesh is located above the center of the first region.

[0006] The invention is further configured such that the first region is recessed downwards, the recess height H is 0.3mm-0.6mm, and the angle α formed by the two second regions and the inner side of the surface layer is 10°-18°.

[0007] The present invention is further configured such that the first region surrounds the second region, and the first region and the second region are arranged in a matrix.

[0008] The present invention is further configured such that the mesh is arranged in a matrix on the base.

[0009] The invention is further configured such that the first region is woven with a second yarn, and the second region is woven with a first yarn.

[0010] The invention is further configured such that the surface layer is formed by weaving hydrophilic fibers.

[0011] This invention also discloses a weaving process for a unidirectional moisture-wicking fabric, comprising the following steps:

[0012] S1: Basic preparation steps, the first area of ​​the inner layer is woven with the second yarn, which is made of polypropylene fiber, the second area is woven with the first yarn, which is made of profiled fiber, the outer layer is made of polyester fiber, the inner layer is woven with 4 rows of coils as one cycle, each row of coils includes the first yarn and the second yarn, the first yarn and the second yarn are arranged in a 1:1 ratio, the outer layer is woven with 6 rows of coils as one cycle, each row of coils has only one yarn;

[0013] S2: Fabric weaving process: In the inner layer of 4 loop rows, each loop row includes purl and knit stitches. In the first and third loop rows, the first and third purl stitches are knitted together, and the second and fourth knit stitches are knitted together. In the second and fourth loop rows, the first and third purl stitches are knitted together, and the second and fourth knit stitches are knitted together. In the outer layer of 28 loop rows, each loop row includes purl and knit stitches. In the first and second loop rows, the first, third, fifth, and seventh purl stitches are knitted together, and the second, fourth, sixth, and eighth knit stitches are knitted together. The first and second loop rows are repeated 12 times. In the third to sixth loop rows, the first, third, fifth, and seventh purl stitches are knitted together, the second knit stitch is knitted together, the fourth knit stitch is not knitted, and the sixth and eighth knit stitches are knitted together. In the third to sixth loop rows, the fifth, sixth, seventh, and eighth stitches need to be repeated 12 times.

[0014] S3: Fabric weaving, unwinding and gluing.

[0015] The invention is further configured such that the mesh is formed by the second lower needle loop of the third to sixth coil rows, and the mesh is located above the center of the first region.

[0016] The invention is further configured such that the width of the first region is greater than that of the second region, and the first region and the second region form a tree-like branching structure.

[0017] In summary, the present invention has the following beneficial effects:

[0018] By using two layers of different fibers, changing the fiber yarn fineness and increasing the yarn twist, the cross-sectional shape of the fibers is altered, thereby increasing the moisture-wicking grooves in the cross-section to achieve a moisture-wicking effect. In addition, gaps are added inside the two layers of fabric, and the cavities and meshes are arranged in different sizes, which not only accelerates water vapor evaporation, thereby increasing the breathability and moisture-wicking properties of the fabric, but also, combined with shaped fibers and polyester fibers with increased twist, increases the fabric's water vapor transport capacity. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a one-way moisture-wicking fabric in this embodiment;

[0020] Figure 2 For this embodiment Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the inner layer structure of a unidirectional moisture-wicking fabric in this embodiment;

[0022] Figure 4 This is a schematic diagram of the inner surface structure of a unidirectional moisture-wicking fabric in this embodiment;

[0023] Figure 5 This is a coil diagram of the inner layer of a unidirectional moisture-wicking fabric in this embodiment;

[0024] Figure 6 This is a weave diagram of the inner layer of a unidirectional moisture-wicking fabric in this embodiment;

[0025] Figure 7 This is a weave diagram of the inner layer of a unidirectional moisture-wicking fabric in this embodiment.

[0026] Reference numerals: surface layer 100, outer surface layer 101, inner surface layer 102, mesh 1021, base 1022, inner layer 200, first region 201, second region 202, cavity 300, first yarn 401, second yarn 402. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] This embodiment discloses a one-way moisture-wicking fabric, including an outer layer 100 and an inner layer 200 arranged sequentially from the outside to the inside. The inner layer 200 includes a first region 201 and a second region 202. The two second regions 202 protrude upward to form triangular apexes. Adhesive is applied at the apexes to connect the inner layer 200 and the base 1022.

[0029] The first region 201 is recessed downwards, with a recess height H of 0.3mm-0.6mm, preferably 0.5mm. The recess of the first region 201 causes the inner surface 102 and the inner layer 200 to form a cavity 300, which is in the shape of an inverted trapezoid. The first region 201 is woven with a second yarn 402, which is made of polypropylene fiber. Because the cross-section of polypropylene fiber is circular and the fiber is smooth and without stripes in the longitudinal direction, water cannot penetrate or be adsorbed. The molecular structure of polypropylene fiber is relatively compact, so water molecules do not easily penetrate into the gaps inside the fiber. This allows water vapor to be released into the cavity 300 through the first region 201. The cavity 300 is hollow, allowing the water vapor to circulate within the cavity 300, thereby evaporating some of the water vapor. The remaining water vapor can be adsorbed by the surface layer 100 and discharged to the outside.

[0030] The angle α formed by the two second regions 202 and the inner surface 102 is 10°–18°, preferably 12°. If the angle between the two second regions 202 and the inner surface 102 is less than 10°, the space of the cavity 300 will be insufficient to form airflow due to the small angle. If the angle is greater than 18°, the cavity 300 will be sunken downwards due to the large angle, resulting in an unstable fabric structure. The second regions 202 are woven with the first yarn 401, which is made of profiled fiber. Because the cross-sectional structure of profiled fiber contains micropores and cavities, it can quickly absorb moisture and transfer it to the surface 100 through capillary action when in contact with water vapor. Since the second region 202 is higher than the first region 201, the second region 202 and the first region 202 are relatively close. The inner layer 200 is formed by combining two regions: a first region 201 for hydrophobic transport and a second region 202 for hydrophilic transport. The first region 201 surrounds the second region 202, and both regions are arranged in a matrix. The area of ​​the second region 202 is smaller than that of the first region 201. This not only increases the structural stability of the inner layer 200, but also interweaves hydrophilic regions with hydrophobic regions, allowing for faster water vapor penetration and adsorption. It also forms multiple transport channels in different directions, enabling water vapor to be transported through multiple pathways and directions, thus keeping the inner layer 200 continuously dry. Furthermore, the interweaving arrangement of the first region 201 and the second region 202 in the inner layer 200 can shorten the water vapor residence time. When water vapor comes into contact with the fabric, it can be quickly transferred to the fabric surface 100 through the siphon effect of the second region 202, allowing the inner layer 200 to dry quickly against the skin.

[0031] The surface layer 100 includes an outer surface 101 and an inner surface 102. The surface layer 100 is formed by weaving hydrophilic fibers. The inner surface 102 includes mesh 1021 and a base 1022. The mesh 1021 is also arranged in a matrix on the base 1022, and the mesh 1021 is located above the center of the first region 201. Therefore, the mesh 1021 is also located above the center of the cavity 300. Thus, when the first region 201 transports water vapor into the cavity 300, the water vapor passes through the hydrophilic fibers of the inner surface 102. While the surface layer 102 is interrupted by the mesh 1021, the water vapor adsorbed by the hydrophilic fibers on the surface layer 102 will not be oversaturated. Furthermore, the water vapor can more quickly and directly contact the surface layer 101 through the mesh 1021, allowing the surface layer 102 to continuously penetrate and adsorb moisture. The surface layer 101 is also woven from hydrophilic fibers, so the surface layer 101 absorbs the water vapor penetrated from the surface layer 102 and evaporates through the outside, keeping the fabric dry.

[0032] The first region 201 of the inner layer 200 is woven with the second yarn 402, which is made of polypropylene fiber. The second region 202 is woven with the first yarn 401, which is made of profiled fiber. The outer layer 100 is made of hydrophilic fiber, which is polyester fiber with increased twist, so that the cross section of the polyester fiber forms grooves, allowing the outer layer 100 to penetrate and absorb more water vapor.

[0033] The inner layer 200 is arranged in a cycle of 4 rows of coils. Each row of coils includes a first yarn 401 and a second yarn 402. Figure 1 The inner layer 200 is arranged in a :1 pattern, and each row of loops in the inner layer 200 also includes purl and knit stitches. The first yarn 401 is knitted in the first and third purl stitches of the first and third rows of loops, and knitted in the second and fourth rows of loops. The second yarn 402 is knitted in the first and third purl stitches of the second and fourth rows of loops, and knitted in the second and fourth rows of loops. Thus, the first yarn 401 knits to form the second region 202, and the second yarn 402 knits to form the first region 201. The width of the first region 201 is greater than that of the second region 202. Because each row has knitted stitches, the first region 201 and the second region 202 form a structure with varying density, so that moisture can quickly diffuse to the surface layer 100 when it comes into contact with the surface.

[0034] The surface layer 100 uses a 6-row loop as one cycle, with only one yarn in each row. Each row includes both purl and knit stitches. In rows 1 and 2, the 1st, 3rd, 5th, and 7th purl stitches form a loop, and the 2nd, 4th, 6th, and 8th knit stitches form a loop. Rows 1 and 2 are repeated 12 times. In rows 3-6, the 1st, 3rd, 5th, and 7th purl stitches form a loop, the 2nd knit stitch is knitted, the 4th knit stitch is not knitted, and the 6th and 8th knit stitches form a loop. The 5th, 6th, 7th, and 8th stitches in rows 3-6 are repeated 12 times. Mesh 1021 is formed by knitting the 2nd knit stitch in rows 3-6. Due to the repeating stitch count, mesh 1021 is located above the center of the first area 201. The inner layer 200 is woven in such a way that the first region 201 and the second region 202 form a tree-like branching structure. The first region 201 is hydrophobic, and the second region 202 is hydrophilic. A cavity 300 is formed between the inner layer 200 and the outer layer 100. Therefore, when the inner layer 200 and the outer layer 100 come into contact with water vapor, they form multi-level interconnected channels. This not only improves the efficiency of water vapor transport but also accelerates the evaporation of water vapor, thereby increasing the breathability of the fabric. Since the inner layer 200 is made of polypropylene fiber and foreign fiber, the polypropylene fiber does not absorb water, and the siphon effect of the foreign fiber can only transport water to the polyester fiber of the outer layer 100. Therefore, when external water vapor comes into contact with it, the water vapor will not flow back and affect the moisture wicking of the fabric.

[0035] The fabric is woven with a double-layer structure of outer layer 100 and inner layer 200. Therefore, according to the performance index data of GB / T21655.2, the outer layer 100 and inner layer 200 are evaluated by the dynamic moisture transfer method (see Tables 1 and 2). The multi-level interconnected channels formed by the combination of outer layer 100 and inner layer 200 improve the moisture absorption and wicking properties of the fabric, and at the same time increase the moisture diffusion rate of the fabric. Thus, the unidirectional moisture wicking property of the fabric is not formed by the coating, which increases the environmental protection and practicality of the fabric.

[0036]

[0037]

[0038] Table 1

[0039]

[0040] Table 2

[0041] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A unidirectional moisture-wicking fabric, characterized in that, The device comprises a surface layer (100) and an inner layer (200) arranged sequentially from the outside to the inside. The surface layer (100) includes an outer surface layer (101) and an inner surface layer (102). The inner surface layer (102) includes a mesh (1021) and a base (1022). The inner layer (200) includes a first region (201) and a second region (202). The mesh (1021) is located above the first region (201). The inner surface layer (102) and the inner layer (200) form a cavity (300). The two second regions (202) protrude upward to form triangular apexes. The inner layer (200) is glued to the base (1022) through the triangular apexes. The cavity (300) is in the shape of an inverted trapezoid, and the mesh (1021) is located above the center of the first region (201); The first region (201) is recessed downwards, with a recess height H of 0.3mm-0.6mm, and the two second regions (202) form an angle α of 10°-18° with the inner side (102) of the surface layer. The first region (201) surrounds the second region (202), and the first region (201) and the second region (202) are arranged in a matrix; The mesh (1021) is arranged in a matrix on the base (1022); The first region (201) is woven with the second yarn (402), the second region (202) is woven with the first yarn (401), the second yarn (402) is made of polypropylene fiber, and the first yarn (401) is made of profiled fiber; The surface layer (100) is formed by weaving hydrophilic fibers, which are polyester fibers with enhanced twist.

2. A weaving process for the unidirectional moisture-wicking fabric according to claim 1, characterized in that, Includes the following steps: S1: Basic preparation steps, the first region (201) in the inner layer (200) is woven with the second yarn (402), and the second region (202) is woven with the first yarn (401); S2: Fabric weaving process: The inner layer (200) is a cycle of 4 loops. Each loop includes the first yarn (401) and the second yarn (402). The first yarn (401) and the second yarn (402) are arranged in a 1:1 ratio. In the 4 loops of the inner layer (200), each loop includes purl needles and knit needles. The first yarn (401) is looped in the 1st and 3rd purl needles of the 1st and 3rd loops and looped in the 2nd and 4th knit needles. The second yarn (402) is looped in the 1st and 3rd purl needles of the 2nd and 4th loops and looped in the 2nd and 4th knit needles. The surface layer (100) is a cycle of 6 rows of loops. Each row of loops has only one yarn, but each row of loops includes purl and knit stitches. In the first and second rows of loops, the 1st, 3rd, 5th, and 7th purl stitches form a loop, and the 2nd, 4th, 6th, and 8th knit stitches form a loop. The first and second rows of loops are repeated 12 times. In the third to sixth rows of loops, the 1st, 3rd, 5th, and 7th purl stitches form a loop, the 2nd knit stitch is knitted, the 4th knit stitch is not knitted, and the 6th and 8th knit stitches form a loop. In the third to sixth rows of loops, the 5th, 6th, 7th, and 8th stitches need to be repeated 12 times. The mesh (1021) is formed by knitting the 2nd knit stitch in the third to sixth rows of loops. Because of the cycle of stitches, the mesh (1021) is located above the center of the first region (201). S3: Fabric weaving, unwinding and gluing.

3. The weaving process of a unidirectional moisture-wicking fabric according to claim 2, characterized in that, The width of the first region (201) is greater than that of the second region (202), and the first region (201) and the second region (202) form a tree-like branching structure.

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