A light, soft, single-sided weft-knitted fabric with differentiated moisture conduction

Abstract

The present invention discloses a thin, soft, single-sided weft-knitted fabric with differentiated moisture conduction, comprising a fabric body comprising a first yarn Y1 and a second yarn Y2 interwoven and knitted in a weft-knitted single-sided plain weave and / or single-sided variable weave structure. The fabric body comprises a garment surface and a skin-contacting surface, and the skin-contacting surface has a geometrically discontinuous raised area. Within a unit area, the garment surface is composed of a loop-forming and tuck-loop structure, and the skin-contacting surface is composed of a loop-forming and tuck-loop or float structure. Within a unit repeat of the fabric body, the skin-contacting surface contains at least one yarn for knitting a non-looping knitting unit. The area of ​​the yarn for knitting the non-looping knitting unit is ≤70% of the total number of yarns per unit repeat. The present invention is thin, soft, and has a one-way moisture transfer index (OWTC) ≥100%, meeting people's demands for wearing comfort, functionality, and practicality, and having a wide range of applications.

Description

Technical Field

[0001] The present invention belongs to the technical field of textile fabrics and relates to a single-sided weft-knitted fabric, and in particular to a light, soft, warm-keeping knitted fabric with the characteristic of differential moisture conduction of liquid water on both sides of the fabric, so that the human skin surface always remains dry and comfortable. Background Art

[0002] With the advancement of technology and the improvement of people's living standards, people are increasingly demanding functionality and comfort in clothing and household items, in addition to aesthetics. In the hot summer weather, people primarily demand lightweight, thin, and dry textile fabrics. To account for this lightweight feel, the market often chooses single-faced fabrics for summer clothing. However, after heavy sweating, these fabrics do not absorb the sweat on the surface of the fabric that contacts the body, causing a feeling of stuffiness. Fabrics with good moisture absorption properties, on the other hand, feel cool after being soaked with sweat and often take time to dry. During this time, the fabric tends to adhere to the body, affecting breathability. Therefore, textiles with one-way moisture conduction have emerged to meet this demand, meeting people's clothing requirements and are expected to be favored by consumers and the market.

[0003] The existing weft-knitted single-sided one-way moisture-conducting knitted fabrics are mainly divided into two categories. One category is to print a water-repellent pattern on one side of the existing textile fabric by coating or printing technology through post-finishing to achieve different moisture-conducting capabilities on both sides of the fabric, or to perform a water-repellent pre-treatment on the yarn so that the fabric made of the yarn can facilitate the one-way moisture-conducting function; the other category is to use yarns with special cross-sections or double-sided variable structure designs with double-sided structure as the main body to achieve the difference in the transfer ability of liquid water between the skin-contacting surface of the fabric and the surface layer of the clothing.

[0004] Patent application CN202010881143.3, "A Polyester-Cotton Unidirectional Moisture-Conducting School Uniform Fabric and Its Preparation Process," discloses a knitted fabric comprising an inner layer and an outer layer. The inner layer is made of 110dtex / 130f polyester low-stretch yarn, and the outer layer is made of 13-16tex cotton yarn. The preparation process includes the following steps: S1 pretreatment; S2 dyeing; S3 depilation; S4 post-treatment; and S5 molding. The resulting fabric is unidirectional, quick-drying, and breathable.

[0005] Patent application CN201911344139.7, "A method for preparing a multifunctional unidirectional moisture-conducting cotton fabric", discloses a unidirectional conductive fabric formed by combining functional materials with fabrics by coating. The main steps include: (1) using a silane coupling agent to hydrophobically modify gas-phase nano-silica, dispersing it in anhydrous ethanol to prepare a hydrophobic gas-phase nano-silica anhydrous ethanol dispersion; (2) mixing the hydrophobic gas-phase nano-silica anhydrous ethanol dispersion with a fluorine-containing water repellent to prepare a water-repellent coating agent; (3) using the water-repellent coating agent to perform a single-sided interval coating on the cotton fabric, and after pre-baking and baking, a multifunctional unidirectional moisture-conducting cotton fabric is obtained.

[0006] Patent application CN201922433023.2, "A one-way moisture-conducting fabric", discloses a one-way moisture-conducting fabric including a waterproof inner layer, a one-way moisture-conducting point, a fabric inner layer, a fabric surface layer and a hydrophilic outer layer. The waterproof inner layer and the one-way moisture-conducting point are located on the innermost side and in contact with the human body; the inner side of the fabric inner layer is compounded with a waterproof inner layer through a printing process, and the outer side is combined with the fabric surface layer through a bonding method. The inner side of the fabric inner layer is a one-way moisture-conducting point, and the outer side of the fabric surface layer is compounded with a hydrophilic outer layer through a dipping-rolling-baking-cooking process, and the hydrophilic outer layer is located on the outermost side to realize the function of one-way conduction.

[0007] Patent application CN201811027306.0, "A multifunctional one-way moisture-conducting fabric", discloses a multifunctional one-way moisture-conducting fabric which is a double-sided knitted mesh cloth, which is woven by a double-sided knitting machine to form a double-sided structured grey cloth. The inner layer of the grey cloth is a mesh structure formed by a loop weaving method. The surface area of ​​the outer layer of the grey cloth is larger than the inner layer. The yarn forming the inner layer is polyethylene yarn or polyethylene composite fiber yarn. The yarn forming the outer layer is a yarn with good water absorption, which is cool and smooth, easy to dye, and has one-way moisture-conducting and UV-resistant functions.

[0008] In summary, the aforementioned prior patented fabrics achieve a one-way conductive function through post-finishing, structural design, and other technologies. One-way conductive fabrics achieved through post-finishing methods such as printing or coating have poor washability and feel relatively hard and dry, which affects the softness and comfort when worn. Furthermore, this process is suitable for flat fabrics and not for fabrics with fuzz or concave-convex structures on the reverse side. The fabric itself is also relatively thick, causing a sense of oppression when worn and lacking in thermal insulation performance. Prior double-sided patented fabrics achieved a one-way conductive function through structural design combined with raw material matching. For example, the garment surface uses a mesh structure, while the skin-contacting surface uses a plain weave structure. Since the plain weave structure has few voids, it is not conducive to sweat contacting and diffusing to the absorbent material on the garment surface. Summary of the Invention

[0009] In order to solve the above technical problems, the present invention provides a thin, soft, single-sided weft-knitted fabric with differentiated moisture conduction, which specifically adopts the following technical solutions:

[0010] A light, soft, single-sided weft-knitted fabric with differentiated moisture conduction, comprising a fabric body, the fabric body comprising a first yarn Y1 and a second yarn Y2 that are interwoven with each other and woven by a weft-knitted single-sided plain weave and / or a single-sided variable weave structure; the fabric body has a clothing surface and a skin-contacting surface, and the skin-contacting surface has a geometrically discontinuous raised area; within a unit area, the clothing surface is composed of a loop and tuck structure, and the skin-contacting surface is composed of a loop and tuck or float structure, with loop knitting units and tuck knitting units formed on the clothing surface, and loop knitting units and non-loop knitting units formed on the skin-contacting surface; in a unit cycle weave of the fabric body, the skin-contacting surface contains at least one yarn for knitting the non-loop knitting unit, and the length of the non-loop knitting unit on the skin-contacting surface is ≤4 stitches; and the area of ​​the yarn for knitting the non-loop knitting unit is ≤70% of the unit area of ​​the total number of ways in a unit cycle weave structure.

[0011] Furthermore, the ratio of the yarn coverage area of ​​the garment surface to the yarn coverage area of ​​the skin-contacting surface is greater than 1.5; the garment surface coverage area S F For: S F =mS Y1 +nS Y2 The yarn coverage area S of the skin-friendly surface B For: S B =mS Y1 +W×nS Y2 , where m is the number of first yarns in the unit cycle structure, n is the number of second yarns in the unit cycle structure; and in a knitted loop in the unit cycle structure of the fabric body, the unit coverage area of ​​the skin-contacting yarn S1=5.42D 2 The unit coverage area of ​​the garment yarn is S2 = 6.928D 2 ; Wherein, D is the inner radius of the semicircle of the needle arc and the sinker arc.

[0012] Furthermore, the moisture conductivity of the first yarn Y1 is greater than that of the second yarn Y2, and the ratio of the moisture conductivity of the second yarn to the moisture conductivity of the first yarn is greater than 1.2, and the second yarn Y2 is woven on the non-skin-contacting surface.

[0013] Furthermore, the first yarn Y1 is a yarn selected from the group consisting of polyester fiber, polyamide fiber, plant fiber, and regenerated cellulose fiber, or a blended yarn of at least two of these.

[0014] Furthermore, the second yarn Y2 is one of polypropylene, polyester fiber, plant fiber and regenerated cellulose fiber, or a blended yarn of at least two thereof, and the surface contact angle θ2 is ≥45°.

[0015] Furthermore, the clothing surface is a jacquard weave structure combining loop knitting units and tuck knitting units, or a plain jersey weave structure.

[0016] Furthermore, the ratio of the number of loop knitting units to the number of tuck knitting units per unit area of ​​the garment surface is greater than 1 and less than or equal to 3.

[0017] Furthermore, the ratio of the looped knitting units to the non-looped knitting units on the skin-contacting surface is between 1:1 and 1:3.

[0018] Furthermore, the skin-contacting surface is subjected to a velvet treatment to form a velvet surface, so as to improve the warmth retention capacity of the fabric, improve wearing comfort and increase the liquid water one-way transmission index.

[0019] Furthermore, the fabric body also includes spandex elastic fiber.

[0020] The present invention has the following beneficial effects: Using a single-sided weft knitting loom, the garment surface of the fabric is constructed with a loop-and-tuck structure, creating micropores that enhance air convection; the skin-facing surface of the fabric is constructed with a loop-and-tuck structure, which enhances breathability. Furthermore, within a unit repeat, at least one yarn on the garment surface has a non-looping knitting motion, with this non-looping motion accounting for ≤70% of the total number of yarns in the unit repeat structure. The first yarn Y1 is a low-water-conductivity yarn, while the second yarn Y2 is a high-water-conductivity yarn. The second yarn Y2 is a non-skin-facing surface, reducing the likelihood of the high-water-conductivity yarn coming into contact with the skin, thereby reducing the sticky sensation after perspiration and slowing the horizontal diffusion of moisture on the skin-facing surface. The resulting fabric exhibits differentiated moisture-conductivity and is lightweight, soft, and consistently dry, comfortable, and non-sticky. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the unit coverage area of ​​yarn in a coil of the present invention;

[0022] Figure 2 This is a structural principle diagram of Example 1 of the present invention;

[0023] Figure 3 This is a schematic diagram of the unit coverage area of ​​yarn in Example 1 of the present invention;

[0024] Figure 4 This is a measurement curve of the water content difference between the bottom and surface of Example 1 of the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Please refer to the Figures 1-4 .

[0026] A light, soft, single-sided weft-knitted fabric with differentiated moisture conduction is woven using a single-sided weft-knitted loom, comprising a fabric body, the fabric body comprising a first yarn Y1 and a second yarn Y2 that are interwoven with each other and woven by a weft-knitted single-sided plain weave and / or a single-sided variable weave structure; the fabric body has a clothing surface and a skin-contacting surface, and the skin-contacting surface has a geometrically discontinuous raised area; within a unit area, the clothing surface is composed of a loop and tuck structure, and the skin-contacting surface is composed of a loop and tuck or float structure, with loop knitting units and tuck knitting units formed on the clothing surface, and loop knitting units and non-loop knitting units formed on the skin-contacting surface; in a unit cycle weave of the fabric body, the skin-contacting surface contains at least one yarn for knitting a non-loop knitting unit, and the length of the non-loop knitting unit on the skin-contacting surface is ≤4 stitches; and the area of ​​the yarn for knitting the non-loop knitting unit is ≤70% of the unit area of ​​the total number of ways in a unit cycle weave structure. The loop knitting unit and tuck knitting unit structure on the garment surface can form tiny holes that enhance air convection and improve the air convection effect.

[0027] The first yarn Y1 is a yarn with low water conductivity, and the second yarn Y2 is a yarn with high water conductivity. The moisture conductivity of the first yarn Y1 is greater than that of the second yarn Y2, and the ratio of the moisture conductivity of the second yarn to the moisture conductivity of the first yarn is greater than 1.2. The second yarn Y2 is woven on the non-skin-contacting surface, so that the probability of the high water conductivity yarn contacting the skin is reduced, thereby reducing the sticky feeling after sweating and slowing down the horizontal diffusion of moisture on the skin-contacting surface.

[0028] The clothing surface coverage area S F For: S F =mS Y1 +nS Y2 The skin-facing surface covers an area S B For: S B =mS Y1 +W×nS Y2 Where m is the number of first yarns in the unit cycle structure, n is the number of second yarns in the unit cycle structure; and in one loop of the unit cycle structure of the fabric body, the unit coverage area of ​​the skin-contacting yarn is S1=5.42D 2The unit coverage area of ​​the garment yarn is S2 = 6.928D 2 ; Wherein, D is the inner radius of the semicircle of the needle arc and the sinker arc.

[0029] refer to Figure 1 According to Peirce's classic weft knitting coil model:

[0030] The Peirce loop model assumes that the yarn is in an ideal state in the fabric, neither stretched nor compressed, and has a uniform circular cross-section. The needle loop and sinker loop of the loop are approximated by semicircles, and the needle loop and sinker loop are connected by a straight line. The needle loop of the next row is tangent to the sinker loop of the previous row, and the adjacent two sinker loops or adjacent two needle loops are also tangent. The outer radius of the semicircle of the needle loop and sinker loop is 2D, and the inner radius is D. The loop model is as follows: Figure 1 As shown, the outer circle area = 4πD 2 , inner circle area = πD 2 ; The height of the cylinder is h:

[0031]

[0032] The first yarn Y1 and the second yarn Y2 are alternately woven to form Figure 1 The unit structure of the skin-contacting surface and the clothing surface shown: According to the Peirce coil model, the unit coverage area of ​​the skin-contacting yarn in a coil is S1 = outer circle area - inner circle area

[0033] =4πD 2 -πD 2

[0034] =3πD 2

[0035] =9.42D 2 -4D 2

[0036] =5.42D 2

[0037] In one coil, the unit coverage area of ​​the garment yarn is S2 = h 圈柱 ×D×2

[0038] =h×D×2

[0039] =3.464D×D×2

[0040] =6.928D 2

[0041] As a further development of the present invention, the moisture conductivity of the first yarn Y1 is greater than that of the second yarn Y2, and D Y2 :DY1 The second yarn with high moisture conductivity is woven on the non-skin-contacting surface. The first yarn Y1 can be polyester fiber, polyamide fiber, plant fiber, regenerated cellulose fiber and their blended yarns.

[0042] The second yarn Y2 is a yarn of one or a blend of at least two of polypropylene, polyester fiber, plant fiber, and regenerated cellulose fiber, and its surface contact angle θ2 is ≥45°.

[0043] The clothing surface is a jacquard weave structure combining a loop knitting unit and a tuck knitting unit, or a plain jersey weave structure.

[0044] The ratio of the number of loop knitting units to the number of tuck knitting units per unit area of ​​the clothing surface is greater than 1 and less than or equal to 3, so that the fabric surface has a microporous texture, which enhances air convection and thus increases the breathability of the fabric.

[0045] The ratio of the loop-forming knitting units to the non-loop-forming knitting units on the skin-contacting surface is between 1:1 and 1:3.

[0046] The skin-contacting surface of the knitted fabric can be subjected to a fleece treatment to form a thermal insulation layer, thereby increasing the thickness of the fabric to facilitate the differentiated transfer of liquid water.

[0047] The skin-contacting surface is subjected to a fleece treatment to form a thermal insulation layer, so as to improve the thermal insulation ability of the fabric, improve the wearing comfort and increase the one-way transfer index of liquid water, reduce the probability of yarn contact with the skin, increase the thickness of the fabric to facilitate the differentiated transfer of liquid water, and enhance the soft and comfortable feel.

[0048] The knitted fabric is added with spandex elastic fiber, and the spandex content is greater than 5%, thereby improving the elasticity and quality of the fabric.

[0049] The fabric body has a gram weight of less than 200g / m2, is light to wear, and does not feel oppressive.

[0050] The production process of the fabric body is: yarn → grey cloth weaving → high temperature pre-setting → overflow dyeing → shaping. The finished fabric weight after shaping is 130g / m2. The skin-contacting surface is raised to increase warmth retention. It is comfortable and soft to wear, and at the same time, it is light and thin without any oppression.

[0051] Example 1:

[0052] The first yarn Y1 is made of standard C-section polyester, PES 80D / 144F; the second yarn Y2 is made of standard round-section polyester, PES 30D / 24F. These two yarns are interwoven to form the fabric body, forming a weft-knitted single-sided plain weave. The fabric body comprises a garment surface and a skin-contacting surface, the garment surface being constructed with a loop-and-tuck structure. The first yarn Y1 and the second yarn Y2 are woven together to form the garment surface. The skin-contacting surface is constructed with a loop-and-tuck or float structure. The second yarn Y2 is woven on the skin-contacting surface to form a non-looped knitting unit; the first yarn Y1 is exposed on the skin-contacting surface, forming a geometrically discontinuous raised area. A unit repeat weave consists of two first yarns Y1 and one second yarn Y2, with m = 2 and n = 1.

[0053] like Figure 1-3 As shown, in this embodiment, the coverage area S of the skin-facing yarn is B =2S 1Y1 +S 2y2 ×W; the coverage area of ​​the knitted garment yarn S F =2S 2y1 +S 2y2 .

[0054] The equivalent radius of the first yarn Y1 (80D / 144F) polyester monofilament is:

[0055]

[0056] D Y1 =2×3.80=7.6(μm)

[0057] Similarly, we calculate the equivalent radius of the second yarn Y2 (30D / 24F) polyester monofilament as:

[0058]

[0059] D Y2 =2×5.70=11.4(μm)

[0060] In summary, the coverage area of ​​the skin-facing yarn of the knitted fabric in a unit cycle structure is

[0061] The coverage area S of the garment surface yarn in a unit cycle structure of the knitted fabric F =2S 2Y1 +S 2Y2 =6.928D Y1 2 ×2+6.928D Y2 2

[0062] =1700.69μm2

[0063] Therefore, S F :S B =1.39.

[0064] In this example, the contact angle of the first yarn Y1 is 55°, and the contact angle of the second yarn Y2 is 63°. The knitted fabric was measured according to the standard AATCC 195 "Liquid Moisture Management Properties of Textile Fabrics". The one-way moisture transport capability (OWTC) of the fabric body measured this time was 240%.

[0065] Comparative Example 1:

[0066] The first yarn Y1 and the second yarn Y2 are both made of standard polyester (PES 80D / 144F), interwoven to form a weft-knitted single-face plain fabric with a contact angle of 55°. A single unit repeat of the weave also consists of two first yarns Y1 and one second yarn Y2. The knitted fabric was measured according to AATCC 195, "Liquid Moisture Management Properties of Textile Fabrics." The fabric's one-way moisture transport capability (OWTC) was measured to be 80%.

[0067] Comparison between the two shows that the present invention makes the fabric light, thin and soft by modifying the structure and yarn count of the fabric, and greatly improves the unidirectional moisture conduction ability of the fabric, which can keep the skin-contacting surface of the fabric body dry and comfortable for a long time.

[0068] Example 2:

[0069] Based on Example 1, 150D / 288F polyester is used as the first yarn Y1, and 40D / 36F polypropylene is used as the second yarn Y2. These two yarns are interwoven to form the main fabric body and then subjected to a fleece treatment. The second yarn Y2 forms the non-looped knitting unit on the skin-contacting surface; the first yarn Y1 is exposed on the skin-contacting surface as a geometrically discontinuous raised area. The garment surface has a jacquard structure, and the skin-contacting surface has a fleece area. A unit repeat weave consists of two first yarns Y1 and one second yarn Y2, with m = 2 and n = 1.

[0070] In this embodiment, the coverage area S of the skin-contacting yarn is B =2S 1Y1 +S 2y2×W; the coverage area of ​​the knitted garment yarn S F =2S 2y1 +S 2y2 .

[0071] The equivalent radius of the first yarn Y1 (150D / 288F) polyester monofilament is:

[0072]

[0073] D Y1 =2×3.16=6.32(μm)

[0074] Similarly, we calculate the equivalent radius of the second yarn Y2 (40D / 36F) polypropylene monofilament as:

[0075]

[0076] D Y2 =2×4.47=8.94(μm)

[0077] In summary, the coverage area of ​​the skin-contacting yarn in a unit cycle structure of the present invention is

[0078] The coverage area S of the garment surface yarn in a unit cycle structure of the present invention is F =2S 2Y1 +S 2Y2 =6.928D Y1 2 ×2+6.928D Y2 2

[0079] =1107.15μm 2

[0080] Therefore, S F :S B =1.34.

[0081] In this example, the contact angle of the first yarn Y1 was 58°, and the contact angle of the second yarn Y2 was 71°. The knitted fabric was measured according to AATCC 195, "Liquid Moisture Management Properties of Textile Fabrics." The measured one-way moisture transport capability (OWTC) of the fabric was 320%.

[0082] Comparative Example 2:

[0083] The first yarn Y1 and the second yarn Y2 are both made of ordinary polyester (150D / 288F), interwoven to form a weft-knitted single-sided fabric with the same structure as in Example 1. The yarn contact angle is 56°. A unit repeat weave also consists of two first yarns Y1 and one second yarn Y2. The knitted fabric described above was measured according to the AATCC 195 standard, "Liquid Moisture Management Properties of Textile Fabrics." The measured one-way moisture transport capability (OWTC) of this fabric was 90%.

[0084] Comparing the two, it can be seen that the present invention makes the fabric light, thin and soft by modifying the structure and yarn count of the fabric and adding a pile treatment, and greatly improves the unidirectional moisture conduction ability of the fabric, which can keep the skin-contacting surface of the fabric body dry and comfortable for a long time.

[0085] Example 3:

[0086] Based on Example 1, a first yarn Y1 of polyester (PES 80D / 144F) and a second yarn Y2 of nylon 66 (50D / 48F) are interwoven to form the fabric body, resulting in a weft-knitted single-sided fabric. The second yarn Y2 forms the non-looped knitting unit on the skin-contacting surface; the first yarn Y1 is exposed on the skin-contacting surface as a geometrically discontinuous raised area. A single repeat of the weave consists of four first yarns Y1 and three second yarns Y2, with m = 4 and n = 3.

[0087] In this embodiment, the coverage area S of the skin-contacting yarn is B =4S 1Y1 The coverage area S of the knitted garment yarn F =4S 2y1 +3S 2y2 ×W.

[0088] The equivalent radius of the first yarn Y1 (80D / 144F) polyester monofilament is:

[0089]

[0090] D Y1 =2×3.80=7.6(μm)

[0091] Similarly, we calculate the equivalent radius of the second yarn Y2 (50D / 48F) nylon 66 monofilament as:

[0092]

[0093] D Y2=2×4.47=8.94(μm)

[0094] In summary, the coverage area of ​​the skin-contacting yarn in a unit cycle structure of the present invention is

[0095] The coverage area S of the garment surface yarn in a unit cycle structure of the present invention is F =4S 2Y1 +3S 2Y2 =6.928D Y1 2 ×4+3×6.928D Y2 2

[0096] =3261.78μm 2

[0097] Therefore, S F :S B =1.22.

[0098] In this example, the contact angle of the first yarn Y1 (80D / 144F) was 58°, and the contact angle of the second yarn Y2 (50D / 48F) was 71°. The knitted fabric was measured according to AATCC 195, "Liquid Moisture Management Properties of Textile Fabrics." The measured one-way moisture transport capability (OWTC) of the fabric was 280%.

[0099] Comparative Example 3:

[0100] The same yarn count and structure as those in comparative example 1 are used. According to the comparison of the test results, the present invention makes the fabric light, thin and soft by modifying the structure and yarn count of the fabric and adding a pile treatment, and greatly improves the unidirectional moisture conduction ability of the fabric.

[0101] Example 4:

[0102] Based on Example 1, a first yarn Y1 of polyester (200D / 256F) and a second yarn Y2 of polyester (30D / 24F) are interwoven to form the fabric body, resulting in a weft-knitted single-sided fabric. The second yarn Y2 (30D / 24F) forms the non-looped knitting unit on the skin-contacting surface; the first yarn Y1 (200D / 256F) is exposed on the skin-contacting surface as a geometrically discontinuous raised area. A single repeating weave consists of one first yarn Y1 (200D / 256F) and one second yarn Y2 (30D / 24F), with m = 1 and n = 1.

[0103] In this embodiment, the coverage area S of the skin-contacting yarn is B =S 1Y1 +S 2y2 ×W; the coverage area of ​​the knitted garment yarn S F =S 2y1 +S 2y2 .

[0104] The equivalent radius of the first yarn Y1 (200D / 256F) polyester monofilament is:

[0105]

[0106] D Y1 =2×4.77=9.54(μm)

[0107] Similarly, we calculate the equivalent radius of the second yarn Y2 (30D / 24F) polyester monofilament as:

[0108]

[0109] D Y2 =2×5.70=11.4(μm)

[0110] In summary, the coverage area of ​​the skin-contacting yarn in a unit cycle structure of the present invention is

[0111]

[0112] The coverage area S of the garment surface yarn in a unit cycle structure of the present invention is F =S 2Y1 +S 2Y2 =6.928D Y1 2 +6.928D Y2 2

[0113] =1530.89μm 2

[0114] Therefore, S F :S B =1.23.

[0115] In this example, the contact angle of the first yarn Y1 (200D / 256F) was 52°, and the contact angle of the second yarn Y2 (30D / 24F) was 68°. The knitted fabric was measured according to AATCC 195, "Liquid Moisture Management Properties of Textile Fabrics." The measured one-way moisture transport capability (OWTC) of the fabric was 330%.

[0116] Comparative Example 4:

[0117] The first yarn Y1 and the second yarn Y2 are both made of polyester (200D / 256F) and interwoven with each other to form a weft-knitted single-sided fabric with the same structure as in Example 1. The contact angle of the yarn is 48°. A unit repeat structure is also composed of a first yarn Y1 (200D / 256F) and a second yarn Y2 (200D / 256F). The knitted fabric described above was measured according to the standard AATCC 195 "Liquid Moisture Management Properties of Textile Fabrics". The one-way moisture transport capability (OWTC) of this fabric was measured to be 90%.

[0118] According to the comparison of the test results, the present invention makes the fabric light, thin and soft by modifying the structure and yarn count of the fabric and adding a pile treatment, and greatly improves the unidirectional moisture conduction ability of the fabric.

[0119] Example 5:

[0120] In Example 1, elastic yarn (such as spandex) is added, and the first yarn Y1 is made of ordinary polyester (80D / 144F); the second yarn Y2 is made of polyester (75D / 72F). These three yarns are interwoven to form the fabric body and form a weft-knitted single surface. The fabric body has a clothing surface and a skin-contacting surface, and spandex is used as the binding yarn of the fabric body. The clothing surface is composed of a loop-forming and tucking structure, and the first yarn Y1 (80D / 144F) and the second yarn Y2 (75D / 72F) constitute the clothing surface. The skin-contacting surface is composed of a loop-forming and tucking or floating line structure. Among them, the second yarn Y2 (75D / 72F) is the yarn of the non-loop knitting unit of the skin-contacting surface; the first yarn Y1 (80D / 144F) is exposed on the skin-contacting surface as its geometrically discontinuous raised area. A unit repeat structure consists of two first yarns Y1 (80D / 144F) and one second yarn Y2 (75D / 72F), m=2, n=1.

[0121] In this embodiment, spandex is used as the binding yarn, and the area it occupies is very small and can be ignored. B =2S 1Y1 +S 2y2 ×W; the coverage area of ​​the knitted garment yarn S F =2S 2y1 +S 2y2 .

[0122] The equivalent radius of the first yarn Y1 (80D / 144F) polyester monofilament is:

[0123]

[0124] D Y1 =2×3.80=7.6(μm)

[0125] Similarly, the equivalent radius of the second yarn Y2 (75D / 72F) polyester monofilament is calculated as:

[0126]

[0127] D Y2 =2×4.47=8.94(μm)

[0128] In summary, the coverage area of ​​the skin-contacting yarn in a unit cycle structure of the present invention is

[0129] The coverage area S of the garment surface yarn in a unit cycle structure of the present invention is F =2S 2Y1 +S 2Y2 =6.928D Y1 2×2+6.928D Y2 2

[0130] =1354.03μm 2

[0131] Therefore, S F :S B =1.05.

[0132] In this example, the contact angle of the first yarn Y1 (80D / 144F) was 61°, and the contact angle of the second yarn Y2 (75D / 72F) was 69°. The knitted fabric was measured according to AATCC 195, "Liquid Moisture Management Properties of Textile Fabrics." The measured one-way moisture transport capability (OWTC) of the fabric was 290%.

[0133] Comparative Example 5:

[0134] Spandex is added, and the other yarn counts and structures are the same as those in Comparative Example 1. According to the comparison of the test results, the present invention makes the fabric light, thin and soft by modifying the structure and yarn count of the fabric and adding a pile treatment, and greatly improves the unidirectional moisture conduction ability of the fabric.

[0135] Example 6:

[0136] The same yarn and structure as in Example 1 were used: a single-face plain fabric consisting of two first yarns Y1 (80D / 144F) and one second yarn Y2 (30D / 24F). In one unit repeat weave, m = 1 and n = 3.

[0137] In this embodiment, the coverage area S of the skin-contacting yarn is B =S 1Y1 +3S 2y2 ×W; the coverage area of ​​the knitted garment yarn S F =S 2y1 +3S 2y2 .

[0138] The equivalent radius of the first yarn Y180D / 144F polyester monofilament is:

[0139]

[0140] D Y1 =2×3.80=7.6(μm)

[0141] Similarly, we calculate the equivalent radius of the second yarn Y2 (30D / 24F) polyester monofilament as:

[0142]

[0143] D Y2 =2×5.70=11.4(μm)

[0144] In summary, the coverage area of ​​the skin-facing yarn in a unit cycle structure of the knitted fabric is

[0145] The coverage area S of the garment surface yarn in a unit cycle structure of the knitted fabric F =S 2Y1 +3S 2Y2 =6.928D Y1 2 +6.928D Y2 2 ×3

[0146] =3101.25μm 2

[0147] Therefore, S F :S B =1.47.

[0148] In this example, the contact angle of the first yarn Y1 (80D / 144F) was 55°, and the contact angle of the second yarn Y2 (30D / 24F) was 63°. The knitted fabric was measured according to AATCC 195, "Liquid Moisture Management Properties of Textile Fabrics." The measured one-way moisture transport capability (OWTC) of the fabric was 280%.

[0149] Comparative Example 6:

[0150] Using the same yarn count and structure as in Comparative Example 1, the first yarn Y1 and the second yarn Y2 were both made of polyester (80D / 144F) and interwoven to form a weft-knitted single-face fabric with the same structure as in Example 1. The yarn contact angle was 53°. The fabric's one-way moisture transport capability (OWTC) was measured to be 80%.

[0151] According to the comparison of the test results, the present invention makes the fabric light, thin and soft by modifying the structure and yarn count of the fabric, and greatly improves the unidirectional moisture conduction ability of the fabric.

[0152] As can be seen from the above examples, by interweaving coarse and fine yarns, the fine yarns are not attached to the skin, significantly enhancing the differential capillary water conduction capacity between the two surfaces of the fabric, thereby achieving the goal of "keeping the human skin dry and comfortable at all times." Simultaneously, the present invention is lightweight, soft, and possesses differentiated moisture conduction capabilities. This knitted fabric can meet people's demands for comfort, functionality, and practicality, has a wide range of applications, and has promising market prospects and economic and social benefits.

[0153] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A thin, soft, single-sided weft-knitted fabric with differentiated moisture conduction, comprising a fabric body, characterized by: The fabric body includes a first yarn Y1 and a second yarn Y2 that are interwoven with each other and woven through a weft-knitted single-sided variable structure; the fabric body has a clothing surface and a skin-contacting surface, and the skin-contacting surface has a geometrically discontinuous raised area; within a unit area, the clothing surface is composed of a loop and a tuck structure, and the skin-contacting surface is composed of a loop and a tuck or a floating line structure, and a loop knitting unit and a tuck knitting unit are formed on the clothing surface, and a loop knitting unit and a non-loop knitting unit are formed on the skin-contacting surface; in a unit cycle structure of the fabric body, the skin-contacting surface contains at least one yarn for knitting a non-loop knitting unit, and the length of the non-loop knitting unit on the skin-contacting surface is 4 needles; and the area of ​​the yarn used to knit the non-loop knitting unit in the unit area of ​​the total number of loops in a unit repeating structure 70% The ratio of the yarn coverage area of ​​the garment surface to the yarn coverage area of ​​the skin-contacting surface is greater than 1.5; the coverage area S of the garment surface yarn in one unit cycle tissue is greater than 1.

5. F For: S F = mS 2Y1 +nS 2Y2 ; The coverage area S of the skin-facing yarn in a unit loop tissue B For: S B =mS 1Y1 +W×nS 2y2 , where W = , m is the number of the first yarn in the unit cycle structure, n is the number of the second yarn in the unit cycle structure; and in a knitted loop in the unit cycle structure of the fabric body, the unit coverage area of ​​the skin-contacting yarn S1 = 5.42D 2 ; The unit coverage area of ​​the garment yarn line S2 = 6.928 2 ; Where D is the equivalent diameter of the yarn, D Y1 is the equivalent monofilament diameter of the first yarn Y1, D Y2 The equivalent monofilament diameter of the second yarn Y2 is: 1Y1 The equivalent diameter D of the first yarn Y1 on the skin-contacting surface Y1 Calculate the coverage area, S 1Y1 =5.42D Y1 2 ;S 2Y2 is the equivalent diameter D of the second yarn Y2 in the garment surface Y2 Calculate the coverage area, S 2Y2 =6.928D Y2 2 ;S 2Y1 The equivalent diameter D of the first yarn Y1 in the garment surface Y1 Calculate the coverage area, S 2Y1 =6.928D Y1 2 ; The fabric body also includes spandex elastic fiber.

2. The thin, soft, single-sided weft-knitted fabric with differentiated moisture conduction according to claim 1, characterized in that: The moisture conductivity of the first yarn Y1 is less than that of the second yarn Y2, and the ratio of the moisture conductivity of the second yarn to the moisture conductivity of the first yarn is greater than 1.2, and the second yarn Y2 is woven on the non-skin-contacting surface.

3. The thin, soft, single-sided weft-knitted fabric with differentiated moisture conduction according to claim 2, characterized in that: The first yarn Y1 is one of polyester fiber, polyamide fiber and regenerated cellulose fiber, or a blended yarn of at least two of them.

4. The light, soft, single-sided weft-knitted fabric with differentiated moisture conduction according to claim 2, characterized in that: The second yarn Y2 is one of polypropylene, polyester fiber and regenerated cellulose fiber, or a blended yarn of at least two thereof, and the surface contact angle θ2 is ≥45°.

5. The light, soft, single-sided weft-knitted fabric with differentiated moisture conduction according to claim 1, characterized in that: The clothing surface is a jacquard structure that combines loop knitting units with tuck knitting units.

6. The light, soft, single-sided weft-knitted fabric with differentiated moisture conduction according to claim 1, characterized in that: The ratio of the number of loop knitting units to the number of tuck knitting units per unit area of ​​the clothing surface is greater than 1 and less than or equal to 3.

7. The light, soft, single-sided weft-knitted fabric with differentiated moisture conduction according to claim 1, characterized in that: The ratio of the loop-forming knitting units to the non-loop-forming knitting units on the skin-contacting surface is between 1:1 and 1:

3.

8. The light, soft, single-sided weft-knitted fabric with differentiated moisture conduction according to claim 1, characterized in that: The skin-contacting surface is subjected to a velvet treatment to form a velvet surface, so as to improve the warmth retention capacity of the fabric, improve the wearing comfort and increase the liquid water one-way transmission index.

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