A method for preparing a knitted fabric with differentiated water conduction function

Abstract

A method for preparing a knitted fabric with a differentiated water conduction function comprises the following steps: selecting a composite yarn as a raw material, wherein the composite yarn comprises at least two fibers of a single material with different curling shrinkage rates; weaving a differentiated moisture-conducting weft-knitted fabric body having a clothing surface and a skin-contacting surface through the composite yarn; weaving a fiber with a high curling shrinkage rate according to a set organizational structure to form a convex portion with a height of 0.01 mm-0.5 mm, the convex portion being arranged on the skin-contacting surface, and the convex portion forming a skin-contacting moisture-conducting portion with a high probability of contacting the skin and playing a major role in moisture conduction. The invention has good washing resistance and reproducibility, uniform and stable unilateral moisture conduction capacity, is dry and comfortable to wear and does not stick to the body, can meet people's needs for wearing comfort, functionality, and practicality, and has a wide range of applications.

Description

Technical Field

[0001] The invention relates to textile fabrics, and in particular to a method for preparing knitted fabrics with differentiated water conduction function. Background Art

[0002] At present, there are two main methods for producing unidirectional moisture-conducting fabrics in the industry: one is to print a water-repellent pattern on the back of the fabric using a coating or printing process, and the pattern area accounts for 20%-80% of the total area of ​​the back. For example: 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, and the main steps include: (1) using a silane coupling agent to hydrophobically modify gas-phase nano-silica and disperse 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 agent to prepare a water-repellent coating agent; (3) using a 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.

[0003] The above methods have high requirements on the process parameters of coating or printing, and the printing thickness must be accurately controlled; if the thickness is too small, the washability will be poor, and if the thickness is too large, it will affect the hydrophilicity and feel of the front side of the fabric, thereby reducing the unidirectional moisture conduction performance of the fabric. This method is suitable for processing and producing fabrics with a relatively flat reverse side, but not suitable for fabrics with suede or concave-convex structures on the reverse side.

[0004] The other is to use two yarns with different properties: hydrophilic yarn + water-repellent yarn, and weave them into fabrics. For example: Patent application CN201811027306.0, "A multifunctional one-way moisture-conducting fabric", discloses a multifunctional one-way moisture-conducting fabric that 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 formed by a loop weaving method to form a mesh structure, 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, and 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 conduction and UV resistance.

[0005] The hydrophilic yarn and the water-repellent yarn are mainly used to present certain hydrophilic points and water-repellent points on the reverse side of the knitted fabric, so that a hydrophobic surface with certain hydrophilic points is formed on the reverse side of the fabric, and the front side of the fabric is all hydrophilic, thereby achieving the functions of unidirectional moisture conduction, moisture absorption and quick drying. This method adopts the method of alternately arranging hydrophilic yarn and water-repellent yarn. If yarns of the same color number and yarn count are used in production, it is easy to produce wrong yarns by distinguishing them only by the difference in hydrophilicity. In addition, the molecular weight of the waterproofing agent is relatively large, and it is difficult to ensure uniform water repellency of the inner and outer layers of the yarn on the bobbin after water-repellent finishing of the yarn, which affects the moisture absorption and unidirectional moisture conduction of the final finished fabric.

[0006] In summary, the existing fabric technology mentioned above realizes the unidirectional conduction function through post-finishing, structural design and other technologies. The unidirectional conduction fabric realized by post-finishing methods such as printing or coating has poor water resistance, hard and dry feeling, which affects the softness and comfort when wearing. Moreover, this process is suitable for flat cloth surface, not for cloth with fluff or concave-convex structure on the reverse side. This type of fabric is also relatively thick, which makes people feel oppressive when wearing, and lacks thermal insulation performance. The existing processing methods of unidirectional moisture-conducting fabrics have the disadvantages of narrow suitable fabric range, high production and processing costs, and unsatisfactory unidirectional moisture-conducting effect. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a method for preparing a knitted fabric with differentiated water conduction function.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A method for preparing a knitted fabric with differentiated water conduction function comprises the following steps:

[0010] A composite yarn is selected as a raw material, wherein the composite yarn comprises at least two fibers of a single material with different crimp shrinkage rates;

[0011] A differentiated moisture-conducting weft-knitted fabric body having a clothing surface and a skin-contacting surface is woven by composite yarn;

[0012] During the weaving process, the fibers with higher curling and shrinkage in the composite yarn will form a convex part with a height of 0.01mm-0.5mm. The convex part is arranged on the skin-contacting surface. The convex part forms a skin-contacting moisture-conducting part with a high probability of contacting the skin and plays a major role in moisture conduction.

[0013] When the composite yarn is composed of the first fiber and the second fiber, the equivalent filament number F of the skin-contacting surface of the fabric body is a =wF 1 +F 2 , where: F 1is the number of single fibers of the first fiber, F 2 is the number of single fibers of the second fiber, w 1 is the curl shrinkage of the first fiber, w 2 is the curl shrinkage rate of the second fiber, and w≤0.9; the first fiber F 1 and the second fiber F 2 The composite yarns together participate in the evaporation of water to form the evaporation surface of the clothing surface. The equivalent filament number F of the clothing surface b =F 1 +F 2 ; This allows liquid water to be transported differentially from the skin-contacting surface to the clothing surface.

[0014] When weaving the fabric body, the fibers of each single material with different curling shrinkage rates are first mixed to form a composite yarn, and the fibers of each single material are twisted with each other to form a composite yarn, or at least one of the fibers is used as the core wire, and the other fibers are wound around the core wire to form a composite yarn with a core.

[0015] The height of the arched protrusion is further set to 0.05mm-0.2mm.

[0016] The contact angle θ between the composite yarn participating in water evaporation on the clothing surface and liquid water 1 ≤65 0 .

[0017] The contact angle θ between the composite yarn on the skin-contacting surface and liquid water is 2 ≤70 0 , and θ 2 / θ 1 ≥1.

[0018] The fineness of the fibers of each single material in the composite yarn is different, and the fineness of the fibers with high curl shrinkage is greater than that of the fibers with low curl shrinkage, while the number of single fibers of the fibers with high curl shrinkage is less than that of the fibers with low curl shrinkage.

[0019] The single-material fibers in the composite yarn are polyester fibers, polyamide fibers, natural fibers, regenerated cellulose fibers and polyester fibers.

[0020] The fabric body has a weft-knitted single-sided basic structure, or a weft-knitted double-sided basic structure, or a single-sided jacquard structure, or a double-sided jacquard structure in terms of a weaving pattern.

[0021] The fabric body is an elastic fabric, and the elasticity of the clothing surface is formed by adding elastic yarn to the clothing surface alone, or by adding elastic yarn to the skin-contacting surface alone, or by adding elastic yarn to both the clothing surface and the skin-contacting surface at the same time.

[0022] The skin-contacting surface and / or clothing surface of the fabric body is woven to form a fleece layer to enhance the touch and feel of the fabric.

[0023] This application has the following beneficial effects:

[0024] During the weaving process, a composite yarn composed of fibers with multiple different curling shrinkage rates is used. The fibers with high curling shrinkage rates gather together under a shrinking environment to increase the curling degree of the surface and arch, so that compared with other fibers with low curling shrinkage rates, they form several high arched protrusions on the skin-contacting surface; the probability of the protrusions contacting the skin is high, while the probability of other parts of the skin-contacting surface contacting the skin is reduced, forming tiny holes that enhance air convection and increase air permeability, thereby reducing the sticky feeling after sweating and slowing down the horizontal diffusion of moisture on the skin-contacting surface. And the second fiber F of the composite yarn 2 and the first fiber F 1 As the evaporation surface, they participate in the evaporation of water. Therefore, they have differentiated moisture conduction ability and are thin, light and soft, so that the skin-contacting surface always remains dry, comfortable and non-sticky. Because the unidirectional moisture conduction ability is uniform and stable, it is dry, comfortable and non-sticky, so that the human skin surface always remains dry, comfortable and comfortable to wear. It is suitable for making T-shirts, trousers and shirts, etc. It can meet people's needs for wearing comfort, functionality and practicality, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Attached Figure 1 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0026] Attached Figure 2 It is a schematic cross-sectional structure diagram of another embodiment of the present invention;

[0027] Attached Figure 3 It is a schematic diagram of the structure of the composite yarn in the present invention. DETAILED DESCRIPTION

[0028] The 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 throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like are involved, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Implementation Method 1

[0032] As attached Figure 1-3 As shown, the present invention discloses a method for preparing a knitted fabric with a differentiated water conduction function, comprising the following steps:

[0033] A composite yarn is selected as the raw material. In the first embodiment, the composite yarn is composed of a first fiber and a second fiber of a single material. The first fiber and the second fiber have different curling shrinkage rates, wherein the curling shrinkage rate of the first fiber is set to be higher than the curling shrinkage rate of the second fiber.

[0034] The fabric body 1 having a clothing surface and a skin-contacting surface is woven by composite yarn composed of first fibers and second fibers.

[0035] During the weaving process, the fibers with a higher curl shrinkage rate in the composite yarn will form a bulge with a height of 0.01mm-0.5mm. The bulge is located on the skin-contacting surface. The bulge forms a skin-contacting moisture-conducting part with a high probability of contacting the skin and plays a major role in moisture conduction. The other parts of the skin-contacting surface, that is, other areas except the bulge, have a lower probability of contacting the skin. The fibers with a higher curl shrinkage rate mainly gather together under a shrinking environment to increase the curling degree of the surface and arch.

[0036] The equivalent filament number F of the skin-contacting surface of the fabric body a =wF 1 +F 2 , where: F 1 is the number of single fibers of the first fiber, F 2 is the number of single fibers of the second fiber, w 1 is the curl shrinkage of the first fiber, w 2 is the curl shrinkage rate of the second fiber, and w≤0.9; the first fiber F 1 and the second fiber F 2 The composite yarns together participate in the evaporation of water to form the evaporation surface of the clothing surface. The equivalent filament number F of the clothing surface b =F 1 +F 2 ; This allows liquid water to conduct moisture differentially from the skin-contacting surface to the clothing surface, where w1 and w2 are both values ​​in w, which is a coefficient.

[0037] It can be seen from the above definition that the equivalent number of filaments on the skin-contacting surface is smaller than the equivalent number of filaments on the clothing surface. This will form the function of unidirectional conduction of liquid water from the skin-contacting surface toward the clothing surface, forming the differentiated moisture conduction capacity of the two sides of the fabric. In the fabric body composed of the same composite yarn, since the number of equivalent filaments on the skin-contacting surface is smaller than the equivalent number of filaments on the clothing surface, the differentiated moisture conduction capacity (OWTC) of liquid water transferred from the skin-contacting surface of the fabric to the clothing surface is ≥100%.

[0038] Implementation Method 2

[0039] Based on the first embodiment, there are many different ways to specifically construct the composite yarn. The selected fibers of each single material with different crimp shrinkage rates are mixed to form a composite yarn, the fibers of each single material are twisted with each other to form a composite yarn, or at least one of the fibers is used as a core wire, and other fibers are wound around the core wire to form a composite yarn with a core.

[0040] The following is an example in which the composite yarn is composed of two fibers of a single material.

[0041] As attached Figure 2As shown, the composite yarn is a composite yarn with a core structure composed of a first fiber and a second fiber uniformly wound around the surface of the first fiber.

[0042] Or in the second form, the composite yarn is formed by twisting the first fiber and the second fiber together.

[0043] Or in the third form, the combined yarn includes both a portion formed by the first fiber and the second fiber being twisted together, and a core structure portion consisting of the first fiber and the second fiber wrapped around the surface of the first fiber.

[0044] The specific selection of composite yarn can be determined according to the application occasion of the fabric to meet the needs of different occasions and different user groups.

[0045] Implementation Method 3

[0046] Based on the first embodiment, the contact angle θ between the composite yarn participating in the evaporation of water on the clothing surface and the liquid water is 1 ≤65 0 The contact angle θ between the composite yarn on the skin-contacting surface and liquid water is 2 ≤70 0 , and θ 2 / θ 1 ≥ 1. The contact angles of the first fiber and the second fiber can be set to ensure sufficient moisture conduction capacity during moisture conduction.

[0047] In addition, the fineness of the fibers of each single material in the composite yarn is different, and the fineness of the fiber with a high crimp shrinkage rate is greater than that of the fiber with a low crimp shrinkage rate, and the number of single fibers of the fiber with a high crimp shrinkage rate is less than that of the fiber with a low crimp shrinkage rate. As a result, the fineness of the first fiber with a high crimp shrinkage rate is larger and the number of single fibers is smaller, while the fineness of the second fiber with a low crimp shrinkage rate is smaller and the number of single fibers is larger.

[0048] In addition, the fibers of a single material in the composite yarn are polyester fibers, polyamide fibers, natural fibers, regenerated cellulose fibers and polyester fibers, which can be flexibly combined, and at least two of them can be arbitrarily selected for mixing.

[0049] The fabric structure can be a weft knitted single-sided basic structure, a weft knitted double-sided basic structure, a single-sided jacquard structure, or a double-sided jacquard structure.

[0050] In order to increase the elasticity of the fabric body, the fabric body has a weft-knitted single-sided basic structure, a weft-knitted double-sided basic structure, a single-sided jacquard structure, or a double-sided jacquard structure in terms of the weaving pattern.

[0051] The fabric body is an elastic fabric, and the elasticity of the clothing surface is formed by adding elastic yarn to the clothing surface alone, or by adding elastic yarn to the skin-contacting surface alone, or by adding elastic yarn to both the clothing surface and the skin-contacting surface at the same time.

[0052] For the raised parts, they can all be of the same height, such as Figure 1 As shown; part of the raised portions may be of one height, and another part of the raised portions may be of another height, forming a certain sense of staggeredness, as shown in Figure 2.

[0053] The skin-contacting surface and / or clothing surface of the fabric body is woven to form a fleece layer to enhance the touch and feel of the fabric, making the fabric more comfortable.

[0054] The following is a further description of the implementation method.

[0055] Embodiment 1:

[0056] The composite yarn 60D / 60F CDP / PES 50 / 50 is used to weave a single-sided plain weave fabric body. The composite yarn in the fabric body is composed of a first fiber, polyester filament 30D / 24F, and a second fiber, cationic polyester filament 30D / 36F. The first fiber gathers together under a shrinking environment to increase the curling degree of the surface, so that it forms several arched protrusions with a height of 0.02mm on the skin-contacting surface compared to the first fiber with a high curling shrinkage rate; 1 is 24F, its contact angle is 73°, and the second fiber number F 2 is 36F, its contact angle is 56°, and the fineness of the first fiber DPF 1 (1.25)≥ the fineness of the second fiber DPF 2 (0.83). The equivalent filament number F of the main garment surface of the fabric b =F 1 +F 2 =60F, equivalent filament number F on the skin surface a =wF 1 +F 2 =43F, where w=0.3.

[0057] The knitted fabrics mentioned above were measured according to the standard AATCC 195 "Liquid Moisture Management Properties of Textile Fabrics". The one way moisture transport capability (OWTC) of the fabrics was measured to be 226%.

[0058] Comparative Example 1:

[0059] The fabric body is woven with 60D / 24F PES yarn into a single-sided plain weave structure. The yarns used in the fabric body have the same curl shrinkage rate, and the skin-contacting surface has no raised or non-raised parts. It was measured according to the standard AATCC195 "Liquid Moisture Management Properties of Textile Fabrics". The one-way moisture transport capability OWTC (one way transport capability) of this fabric is measured to be 86%.

[0060] According to the comparison of the above two experiments, the moisture conduction capacity of the present application is much greater than that of comparative example 1 by modifying the structure and yarn count of the fabric, which greatly improves the unidirectional moisture conduction capacity of the fabric and can keep the skin-contacting surface of the fabric body dry and comfortable for a long time.

[0061] Embodiment 2:

[0062] The fabric body of the double-sided basic structure Interlock is woven with composite yarn CDP / PES 60 / 40 80D / 84F yarn. The composite yarn in the fabric body is composed of the first fiber - polyester filament 30D / 36F and the second fiber - cationic polyester filament 50D / 48F. The surface curling degree is enhanced and arched under the shrinkage environment, so that compared with the first fiber with high curling shrinkage rate, several arched protrusions with a height of 0.07mm are formed on the skin-contacting surface; among them, the first fiber number F 1 is 36F, its contact angle is 75°, and the second fiber number F 2 is 48F, its contact angle is 60°, and the DPF of the first fiber is 1 (1.04)≥ the fineness of the second fiber DPF 2 (0.83). The equivalent filament number F of the main garment surface of the fabric b =F 1 +F 2 =84F, equivalent filament number F on the skin surface a =wF 1 +F 2 =58F, where w=0.3.

[0063] The knitted fabrics mentioned above were measured according to the standard AATCC 195 "Liquid Moisture Management Properties of Textile Fabrics". The one way moisture transport capability (OWTC) of the fabrics was measured to be 265%.

[0064] Comparative Example 2:

[0065] The main body of the fabric is a double-sided interlock fabric structure woven with 60D / 24F PES yarn. The yarns used in the main body of the fabric have the same curl shrinkage rate, and there are no raised or non-raised parts on the skin-contacting surface. The fabric 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 102%.

[0066] According to the comparison of the above two experiments, the moisture conduction capacity of the present application is much greater than that of comparative example 2 by modifying the structure and yarn count of the fabric, which greatly improves the unidirectional moisture conduction capacity of the fabric and can keep the skin-contacting surface of the fabric body dry and comfortable for a long time.

[0067] Embodiment 3:

[0068] On the basis of Example 1, elastic yarn 30D PU is added to the fabric body to improve the elasticity and quality of the fabric. The same yarn is used to weave into a single-sided plain weave structure, and the elastic yarn 30D PU is arranged on the clothing surface of the fabric body. In a shrinking environment, the elastic yarn 30D PU gathers to increase the surface curling and arching, so that it forms a number of arched protrusions with a height of 0.1 mm on the skin-contacting surface compared with the first fiber with a high curling shrinkage rate.

[0069] The knitted fabric was measured according to the standard AATCC 195 "Liquid Moisture Management Properties of Textile Fabrics". The one way transport capability (OWTC) of the fabric body measured this time was 230%.

[0070] Comparative Example 3:

[0071] The fabric body of the single-sided plain weave structure was woven with the same yarn count and structure as in Comparative Example 1, and 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 (one way transport capability) of the fabric body measured this time was 78%.

[0072] According to the comparison of the test results, it can be seen that the present application 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.

[0073] From the above examples, it can be seen that by using a composite yarn knitted fabric composed of at least two fibers with different curling shrinkage rates, the surface curling degree is enhanced and arched by gathering under a shrinking environment, so that the first fiber with a higher curling shrinkage rate forms an arched bulge in the skin-contacting surface, and the arched bulge serves as the main contact surface, thereby effectively reducing the skin contact area of ​​the skin-contacting surface. The clothing surface and the skin-contacting surface jointly participate in the evaporation of water to form an evaporation surface, so as to achieve the purpose of "keeping the human skin surface dry and comfortable at all times." The overall fabric is light, soft and has differentiated moisture conduction capabilities. The knitted fabric can meet people's needs for wearing comfort, functionality and practicality.

[0074] It should be noted that the above are only 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 aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing a knitted fabric with differentiated water conduction function, characterized in that: The following steps are involved: A composite yarn is selected as a raw material, wherein the composite yarn comprises at least two fibers of a single material with different crimp shrinkage rates; A differentiated moisture-conducting weft-knitted fabric body having a clothing surface and a skin-contacting surface is woven by composite yarn; During the weaving process, the fibers with higher curling and shrinkage in the composite yarn will form a convex part with a height of 0.01mm-0.5mm. The convex part is arranged on the skin-contacting surface. The convex part forms a skin-contacting moisture-conducting part with a high probability of contacting the skin and plays a major role in moisture conduction. When the composite yarn is composed of the first fiber and the second fiber, the equivalent filament number F of the skin-contacting surface of the fabric body is a =wF1+F2, where: w= , F1 is the number of single fibers of the first fiber, F2 is the number of single fibers of the second fiber, w1 is the curling shrinkage rate of the first fiber, w2 is the curling shrinkage rate of the second fiber, and w≤0.9; the composite yarn composed of the first fiber F1 and the second fiber F2 participates in the evaporation of water to form the evaporation surface of the clothing surface, and the equivalent filament number F of the clothing surface b =F1+F2; so that liquid water forms two-sided differentiated moisture conduction from the skin-contacting surface to the clothing surface; the contact angle of the first fiber is 73° or 75°, and the contact angle of the second fiber is 56° or 60°.

2. The method for preparing a knitted fabric with differentiated water conduction function according to claim 1, characterized in that: When weaving the fabric body, the fibers of each single material with different curling shrinkage rates are first mixed to form a composite yarn, and the fibers of each single material are twisted with each other to form a composite yarn, or at least one of the fibers is used as the core wire, and the other fibers are wound around the core wire to form a composite yarn with a core.

3. The method for preparing a knitted fabric with differentiated water conduction function according to claim 1, characterized in that: The height of the protrusion is further set to 0.05mm-0.2mm.

4. The method for preparing a knitted fabric with differentiated water conduction function according to claim 1, characterized in that: The fineness of the fibers of each single material in the composite yarn is different, and the fineness of the fibers with high curl shrinkage is greater than that of the fibers with low curl shrinkage, while the number of single fibers of the fibers with high curl shrinkage is less than that of the fibers with low curl shrinkage.

5. The method for preparing a knitted fabric with differentiated water conduction function according to any one of claims 1 to 4, characterized in that: The single-material fibers in the composite yarn are polyamide fibers, natural fibers, regenerated cellulose fibers and polyester fibers.

6. The method for preparing a knitted fabric with differentiated water conduction function according to any one of claims 1 to 4, characterized in that: The fabric body has a weft-knitted single-sided basic structure, or a weft-knitted double-sided basic structure, or a single-sided jacquard structure, or a double-sided jacquard structure in terms of a weaving pattern.

7. The method for preparing a knitted fabric with differentiated water conduction function according to claim 6, characterized in that: The fabric body is an elastic fabric, and the elasticity of the clothing surface is formed by adding elastic yarn to the clothing surface alone, or by adding elastic yarn to the skin-contacting surface alone, or by adding elastic yarn to both the clothing surface and the skin-contacting surface at the same time.

8. The method for preparing a knitted fabric with differentiated water conduction function according to claim 7, characterized in that: The skin-contacting surface and / or clothing surface of the fabric body is woven to form a fleece layer to enhance the touch of the fabric.

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