Preparation method of anti-static and anti-ultraviolet yarn and multifunctional fabric

Abstract

The application discloses a preparation method of an antistatic and anti-ultraviolet yarn and multifunctional fabric. The antistatic and anti-ultraviolet yarn is prepared by setting different functional sizing areas in the sizing process of warp yarns, coating different functional additives on different positions of the yarns respectively, and avoiding the interlacing point area for subsequent weaving process in the coating process. Specifically, the functional additives are coated on different positions of the yarns by adopting the recess buffer sizing liquid and coating the functional additives on the yarns in the process of contacting the yarns in the rotating process. The interlacing point area for subsequent weaving process can be avoided, the use amount of the functional additives is greatly reduced, the corresponding functional effects can still be achieved, the antistatic and anti-ultraviolet yarn prepared by the method and the multifunctional fabric made of the yarn are suitable for application in outdoor sports clothes.

Description

[0001] The present application is a divisional application of the Chinese Invention Patent Application No. 202111682796X, filed on December 31, 2021, entitled "Multifunctional Fabric and Preparation Method and Application Thereof". TECHNICAL FIELD

[0002] The present application relates to the technical field of textiles, in particular to an antistatic and anti-ultraviolet yarn and a preparation method of multifunctional fabric. BACKGROUND

[0003] At present, static electricity is a problem that plagues many fabrics, which seriously affects the wearing comfort of clothing; ultraviolet radiation can make the human body synthesize vitamin D, which is beneficial to human growth, but too much ultraviolet radiation can cause serious harm to the human body, so antistatic fabric and anti-ultraviolet fabric are essential textiles in certain fields, such as nylon, polyethylene, and polypropylene fibers that are poor in sunlight resistance and easily aged, which particularly need to enhance their anti-ultraviolet properties.

[0004] The commonly used process at present is to coat the finished fabric with a coating technology, but this method not only makes the fabric hard and the hand feel worse, but also requires additional processes, increasing the process steps and not conducive to cost savings; another way is to immerse the yarn in an antistatic and anti-ultraviolet mixed additive solution for immersion treatment, thereby obtaining multifunctionality, but on the one hand, during weaving, the warp and weft yarns will form countless interlacing points, and the existence of interlacing points makes the area covered by the interlacing points unable to fully play its due role, resulting in a large waste of functional additives; on the other hand, this process not only requires additional operation steps, but also the mixed functional additives may be mutually covered and affected, thereby losing effectiveness. SUMMARY

[0005] The purpose of the present application is to overcome the shortcomings of the prior art and provide an improved preparation method of antistatic and anti-ultraviolet yarn, which is made with fewer process steps and has good antistatic and anti-ultraviolet functions, while the amount of functional additive antistatic and anti-ultraviolet sizing is greatly reduced, effectively saving costs.

[0006] The present application also provides a method for preparing a multifunctional fabric comprising the process of preparing the antistatic and anti-ultraviolet yarn, which has at least the advantage of comfortable hand feel.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present application is:

[0008] The application discloses a method for preparing multifunctional fabric, which comprises the following steps: after anti-static and anti-ultraviolet yarns are threaded, the multifunctional fabric with anti-static and anti-ultraviolet functions is woven by using a loom.

[0009] The anti-static and anti-ultraviolet yarns are prepared by the following process: in the sizing process of warp yarns, anti-static sizing material containing an anti-static agent is used as the sizing sizing liquid of the first sizing area, anti-ultraviolet sizing material containing an anti-ultraviolet agent is used as the sizing sizing liquid of the second sizing area, and the warp yarns are always located above the sizing sizing liquid.

[0010] The warp yarns comprise a plurality of first areas for carrying the anti-static sizing material, a plurality of second areas for carrying the anti-ultraviolet sizing material, and a plurality of interlacing point areas for subsequent weaving processes, and the first areas, the second areas and the interlacing point areas are not overlapped.

[0011] In the first sizing area, a plurality of first pits are arranged on the surface of a first sizing roller, in the rotation process of the first sizing roller, part of the anti-static sizing material is stored in each first pit, and then the stored part of the anti-static sizing material is coated on one of the first areas of the yarn in the process of contacting the yarn.

[0012] In the second sizing area, a plurality of second pits are arranged on the surface of a second sizing roller, in the rotation process of the second sizing roller, part of the anti-ultraviolet sizing material is stored in each second pit, and then the stored part of the anti-ultraviolet sizing material is coated on one of the second areas of the yarn in the process of contacting the yarn.

[0013] According to the application, the plurality of first pits are respectively arranged along the radial direction and around one circumferential surface of the first sizing roller, and the specific positions of each first pit on the circumferential surface are adapted to the positions required to be presented on the yarn.

[0014] The plurality of second pits are respectively arranged along the radial direction and around one circumferential surface of the second sizing roller.

[0015] The specific positions of each first pit or second pit on the respective circumferential surface are adapted to the positions required to be presented on the yarn.

[0016] According to some preferred aspects of the application, drying treatment is performed after sizing is performed in each sizing area, and then next sizing is performed in the next sizing area.

[0017] Further, infrared heating is used for drying treatment in the first sizing area and the second sizing area, the infrared heating uses far infrared rays with a wavelength of 1-10 mu m, an output power of 1-100%, and a controllable temperature of 100-160 DEG C.

[0018] According to some specific aspects of the present application, the warp yarn is nylon, polyethylene or polypropylene.

[0019] According to some preferred aspects of the present application, the shape of the first and second pits is independently hemispherical or square, when hemispherical, the diameter of the hemisphere is 30-150 microns, and when square, the side length is 30-150 microns.

[0020] According to some preferred aspects of the present application, the depth of the first and second pits is independently 300-500 microns, which can ensure better sizing capacity and better suitability for the administration of functional auxiliaries for specific sizing areas.

[0021] According to some preferred aspects of the present application, the first and second areas are spaced apart from each other, and by being spaced apart, the functional auxiliaries are dispersed, so that the yarn as a whole can obtain the corresponding functions, and the desired pattern setting interval distance can be formed, giving more changes and characteristics.

[0022] According to some preferred aspects of the present application, in the sizing process, the warp yarn has a speed of 30-40 m / min and a sizing rate of 8-12%.

[0023] According to some preferred aspects of the present application, when sizing is performed in each sizing area, a pressure roller is further provided in cooperation with the respective sizing roller, and the pressure roller cooperates with the corresponding sizing roller to extrude the yarn and the sizing size applied on the yarn.

[0024] In the present application, the sizing rate can be realized by providing a pressure roller, which cooperates with the sizing roller in the respective area to control the sizing rate.

[0025] According to some specific and preferred aspects of the present application, the warp yarn is first given an ideal tension at the tension roller before being introduced into the sizing roller.

[0026] In the present application, except for the sizing roller, other rollers have no direct contact with the sizing size, and the sizing roller is approximately half in the sizing size and the other half protrudes from the sizing size.

[0027] According to some specific and preferred aspects of the present application, the antistatic sizing material contains 0.5-2 parts of antistatic agent, 0.5-1 part of surfactant, 50-60 parts of vinyl acetate-acrylic ester copolymer emulsion, 1-2 parts of softener, and 20-30 parts of deionized water, by weight; the antistatic agent contains carbon nanotubes.

[0028] The anti-ultraviolet sizing agent comprises titanium dioxide and / or zinc oxide.

[0029] According to some specific aspects of the present application, the surfactant in the antistatic sizing agent or the anti-ultraviolet sizing agent is sodium dodecyl sulfate.

[0030] According to some specific aspects of the present application, the softening agent in the antistatic sizing agent or the anti-ultraviolet sizing agent comprises aminopolysiloxane.

[0031] According to some preferred aspects of the present application, the vinyl acetate-acrylate copolymer emulsion used in the present application has good adhesion to synthetic fibers, good sizing effect on nylon yarn, low breaking elongation of sizing film, and is environmentally friendly, non-polluting and low in price.

[0032] The present application also provides a process for preparing the antistatic and anti-ultraviolet yarn by using the above method.

[0033] The present application provides another technical solution: a multifunctional fabric prepared by the above method.

[0034] The present application provides another technical solution: application of the multifunctional fabric described above in outdoor sports clothing.

[0035] Due to the use of the above technical solutions, the present application has the following advantages compared with the prior art:

[0036] At present, the method for preparing a multifunctional fabric is basically to use a coating technology to coat on the surface of the formed fabric, or to immerse the fiber at the source fiber so that the fiber as a whole absorbs and adheres to the functional additives. However, the above two methods not only increase the process steps, but also make the fabric hard and the hand feel worse. The immersion method uses a lot of functional additives, and some functional additives basically do not play a role in the later stage, causing great waste. In addition, for the fabric that needs multifunctionality, the existing method cannot avoid the problem of mutual influence of multiple functional additives.

[0037] In actual operation process, sizing is an important part in weaving process, and sizing warp yarn can improve the weavability of yarn, avoid the situation that a large amount of fluff or even breakage occurs in warp yarn after repeated friction and stretching in subsequent process, improve the strength of warp yarn, reduce the hairiness, and improve the breaking strength of the whole fabric, the inventor of the present application finds in practice that replacing the conventional sizing solution for warp yarn with a solution containing functional additives can not only achieve the sizing effect of yarn, but also endow the yarn with functionality, especially the present application further proposes to use the recess to store the sizing solution and coat the corresponding functional additives on different positions of the yarn in the rotating process and in the process of contacting with the yarn, which can not only avoid the interlacing point area for subsequent weaving process, but also greatly reduce the use amount of functional additives, while still achieving the corresponding functional effect, and further avoiding the problem of corresponding influence between different functional additives.

[0038] In addition, the coating of functional additives on the multifunctional fabric of the present application is independently set in sections, and the coating on the yarn is realized by the sizing of the specific recess, so that the functional additives can better penetrate into the yarn, and a continuous sizing film is not formed on the yarn, that is, the subsequent dyeing operation is not affected, and the use amount of functional additives is significantly lower than that of the existing immersion operation, a small amount of functional additives is precisely coated on the specific area, and the mechanical properties of the yarn are basically not affected when the corresponding functional effect is achieved, therefore, the antistatic and anti-ultraviolet yarn of the present application can also omit the desizing step, that is, the multifunctional fabric prepared by the method of the present application greatly simplifies the operation steps and simplifies the production process, which is beneficial to industrial application. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below, and obviously, the drawings in the following description can only be some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0040] Figure 1 It is a side view of the sizing process of the embodiment of the present application;

[0041] Figure 2 It is a top view of the sizing process of the embodiment of the present application;

[0042] Figure 3 It is a partial enlarged view of the interaction between the sizing roller and the warp yarn of the embodiment of the present application;

[0043] Figure 4This is a schematic diagram showing the distribution of functional areas on the antistatic and antiUV yarn according to an embodiment of the present invention;

[0044] Among them, 1. First sizing zone; 2. Second sizing zone; 3. Warp yarn; 4. Inlet roller; 5. First tension roller; 6. Sizing roller; 7. Pressing roller; 8. Second tension roller; 9. Infrared heating tube; 10. Yarn guide roller; 11. Outlet roller; 12. First area; 13. Second area; 14. Interlacing point area. Detailed Implementation

[0045] The above-mentioned solution will be further described below with reference to specific embodiments; it should be understood that these embodiments are used to illustrate the basic principles, main features and advantages of the present invention, and the present invention is not limited to the scope of the following embodiments; the implementation conditions used in the embodiments can be further adjusted according to specific requirements, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0046] Unless otherwise specified in the following examples, all raw materials are commercially available or prepared by conventional methods in the art.

[0047] The vinyl acetate-acrylate copolymer emulsion was purchased from Guangzhou Qisheng Chemical Co., Ltd., brand name DA-102, with a resin content of 55%; the softener was aminopolysiloxane, purchased from Guangzhou Tianling Silicone Co., Ltd., brand name TS-701; the carbon nanotubes were purchased from Jiaxing Naco New Materials Co., Ltd., brand name NACODC8, with a diameter of 15-25 nm, a length of 5-15 μm, and a fineness of 1000 mesh.

[0048] Example 1

[0049] This example provides a method for preparing a multifunctional fabric, which includes: passing antistatic and UV-resistant yarn through a threading warp and then weaving it into a multifunctional fabric with antistatic and UV-resistant functions using an air-jet loom.

[0050] Specifically, the process of threading the warp is as follows: according to the requirements of the fabric process design, the sized warp yarns are drawn out from the warp beam and passed through the warp stop, heddle, and reed in sequence;

[0051] The process of loom weaving is as follows: according to the fabric structure, the warp yarns are separated into upper and lower sections to form a shed. The weft yarns are introduced into the shed by airflow. The weft yarns introduced into the shed are then pushed towards the weft and tightened to form the fabric. Finally, the woven fabric is wound up.

[0052] Among them, the antistatic and UV-resistant yarn is prepared by the following process: in the sizing process of the warp yarn, an antistatic sizing agent containing an antistatic agent is used as the sizing sizing liquid in the first sizing zone, and an UV-resistant sizing agent containing an anti-UV agent is used as the sizing sizing liquid in the second sizing zone.

[0053] The anti-static sizing agent comprises carbon nanotubes 2 parts, sodium dodecyl sulfate 1 part, vinyl acetate-acrylate copolymer emulsion 50 parts, softener 2 parts, and deionized water 30 parts by weight;

[0054] The anti-ultraviolet sizing agent comprises anti-ultraviolet agent 2 parts, sodium dodecyl sulfate 0.5 parts, vinyl acetate-acrylate copolymer emulsion 50 parts, softener 1 part, and deionized water 20 parts by weight; the anti-ultraviolet agent is composed of titanium dioxide and zinc oxide, and the mass ratio of titanium dioxide to zinc oxide is 3:1;

[0055] During the sizing process, the warp yarn is always located above the sizing agent, and drying treatment is performed after sizing in each sizing area, and then the next sizing is performed in the next sizing area;

[0056] The warp yarn comprises a plurality of first areas for carrying the anti-static sizing agent, a plurality of second areas for carrying the anti-ultraviolet sizing agent, and a plurality of interlacing point areas for subsequent weaving process, and the first areas, the second areas and the interlacing point areas are not overlapped;

[0057] In the first sizing area, the first sizing roller is provided with a plurality of first pits, and during the rotation of the first sizing roller, part of the anti-static sizing agent is stored in each first pit, and then the stored part of the anti-static sizing agent is coated on one of the first areas of the yarn during contact with the yarn;

[0058] In the second sizing area, the second sizing roller is provided with a plurality of second pits, and during the rotation of the second sizing roller, part of the anti-ultraviolet sizing agent is stored in each second pit, and then the stored part of the anti-ultraviolet sizing agent is coated on one of the second areas of the yarn during contact with the yarn.

[0059] Specifically, referring to Figures 1-4As shown, the process diagram of the antistatic and UV-resistant yarn in this example is provided. The warp yarn 3 (nylon filament in this example) after winding is fed into the sizing process through the guide roller 4. First, it enters the first sizing zone 1 and obtains a certain tension under the action of the first tension roller 5. Then, it reaches the space between the sizing roller 6 and the pressure roller 7. During the rotation of the sizing roller 6, the pits on the sizing roller 6 can hold part of the antistatic sizing agent. Then, during the contact with the warp yarn 3, this part of the antistatic sizing agent is coated on the corresponding area of ​​the yarn 3, that is, the first area. When the sizing roller 6 rotates one revolution, each pit on the sizing roller 6 has worked once, and each one has coated a first area of ​​the yarn 3. Partial antistatic sizing is applied. As the sizing roller 6 continues to rotate, the aforementioned process is repeated. When the yarn 3 coated with the partial antistatic sizing continues to move and reaches the second tension roller 8, the tension is readjusted, and it continues to move to the infrared heating tube 9. At this location, the coated antistatic sizing is dried by infrared heating. After drying, it is guided into the second sizing zone 2 by the yarn guide roller 10. The action in the first sizing zone 1 is repeated in the second sizing zone 2. The difference is that the anti-UV sizing is applied in the second sizing zone 2. After the anti-UV sizing is completed, the sized warp yarn is guided out by the guide roller 11 and transported to the subsequent process, such as warp threading.

[0060] In this example, the function of the sizing roller is not only to adjust the sizing rate of each sizing zone, but also to squeeze the sizing to make the sizing deeply bonded to the warp yarn.

[0061] In this example, in the first sizing zone, the infrared heating tube uses far-infrared light with a wavelength of 5μm, an output power of 80%, and a drying temperature of 120℃; in the second sizing zone, the infrared heating tube uses far-infrared light with a wavelength of 1μm, an output power of 100%, and a drying temperature of 160℃.

[0062] In this example, the first pit and the second pit are independently hemispherical in shape, with a diameter of 120 μm, and the depth of the first pit and the second pit is independently 400 μm.

[0063] In this example, as Figure 3 As shown in the figure, this diagram provides an exemplary enlarged view of the interaction between the sizing roller and the warp yarn. The first and second regions are spaced apart, ultimately forming a shape as shown in the figure. Figure 4 The schematic diagram of the antistatic and UV-resistant yarn shows a schematic structure of functional area distribution. The interlacing point area 14 is interspersed between the areas (in fact, it can be between two first areas 12, between two second areas 13, or between the first area 12 and the second area 13). The arrangement pattern of the interlacing point area 14 is determined according to the pre-set fabric structure design.

[0064] In the sizing process, the warp yarns have a speed of 30 m / min, the sizing rate of the first sizing zone 1 is controlled to be 12%, and the sizing rate of the second sizing zone 2 is controlled to be 8%.

[0065] Example 2

[0066] The difference between the example and the example 1 is only that:

[0067] The warp yarns are polyethylene terephthalate filaments;

[0068] The antistatic sizing agent comprises, by weight, 1 part of carbon nanotubes, 1 part of sodium dodecyl sulfate, 55 parts of a vinyl acetate-acrylate copolymer emulsion, 2 parts of a softener, and 25 parts of deionized water;

[0069] The antistatic sizing agent comprises, by weight, 1 part of carbon nanotubes, 1 part of sodium dodecyl sulfate, 55 parts of a vinyl acetate-acrylate copolymer emulsion, 2 parts of a softener, and 25 parts of deionized water;

[0070] In the sizing process, the infrared heating pipes used in the first sizing zone are far infrared rays with a wavelength of 7 μm, the output power is 80%, and the drying temperature is 100°C; in the second sizing zone, the infrared heating pipes are far infrared rays with a wavelength of 5 μm, the output power is 100%, and the drying temperature is 110°C;

[0071] The warp yarns have a speed of 35 m / min, the sizing rate of the first sizing zone is controlled to be 10%, and the sizing rate of the second sizing zone is controlled to be 10%.

[0072] Example 3

[0073] The difference between the example and the example 1 is only that:

[0074] The warp yarns are polyethylene terephthalate filaments;

[0075] The antistatic sizing agent comprises, by weight, 1 part of carbon nanotubes, 1 part of sodium dodecyl sulfate, 55 parts of a vinyl acetate-acrylate copolymer emulsion, 2 parts of a softener, and 25 parts of deionized water;

[0076] The antistatic sizing agent comprises, by weight, 1 part of carbon nanotubes, 1 part of sodium dodecyl sulfate, 55 parts of a vinyl acetate-acrylate copolymer emulsion, 2 parts of a softener, and 25 parts of deionized water;

[0077] In the sizing process, in the first sizing area, the infrared heating tube uses far infrared rays with a wavelength of 5 μm, the output power is 100%, and the drying temperature is 110°C; in the second sizing area, the infrared heating tube uses far infrared rays with a wavelength of 2 μm, the output power is 100%, and the drying temperature is 130°C;

[0078] The warp yarn speed is 40 m / min, the sizing rate of the first sizing area is controlled to be 8%, and the sizing rate of the second sizing area is controlled to be 12%.

[0079] Comparative Example 1

[0080] According to the common sizing process, the entire warp yarn is immersed in the sizing agent, and then is sized through a flat sizing roller and a pressing roller. After the sizing process is completed, oven drying is performed. The sizing agent in the first area and the sizing agent in the second area are adjusted to be the mixed sizing agent of the antistatic sizing agent and the anti-ultraviolet sizing agent in Example 1. The warp yarn speed is 30 m / min, the sizing rate of the first sizing area 1 is controlled to be 12%, and the sizing rate of the second sizing area 2 is controlled to be 8%.

[0081] Comparative Example 2

[0082] According to the common sizing process, the entire warp yarn is immersed in the sizing agent, and then is sized through a flat sizing roller and a pressing roller. After the sizing process is completed, oven drying is performed. The sizing agent in the first area is still the antistatic sizing agent, and the sizing agent in the second area is still the anti-ultraviolet sizing agent. The warp yarn speed is 30 m / min, the sizing rate of the first sizing area 1 is controlled to be 12%, and the sizing rate of the second sizing area 2 is controlled to be 8%.

[0083] Performance Test

[0084] The fabrics prepared in the above Examples 1-3 and Comparative Examples 1-2 are respectively subjected to relevant performance tests. The antistatic property is tested according to GB / T 12703.3-2009 “Evaluation of the Static Properties of Textiles Part 3: Charge Quantity”, and the charge quantity before washing represents the antistatic property. The anti-bacterial property is tested according to GB / T 18830-2009 “Evaluation of the Ultraviolet Properties of Textiles”, and the ultraviolet protection factor (UPF) and the long-wave ultraviolet transmittance (T(UVA)) represent the anti-ultraviolet property. The fabric thickness is tested according to GB / T 3820-1997 “Determination of the Thickness of Textile and Textile Products”, and the fabric stiffness and flexibility are tested according to GB / T 18318.1-2009 “Determination of the Bend Performance of Textiles Part 1: Inclined Plane Method”, and the bending length represents the stiffness and flexibility. The test results are shown in Table 1.

[0085] Table 1

[0086]

[0087] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

[0088] The endpoints of the ranges and any values described herein are not limited to the precise values recited as essentially any range of values can be used. For values which are expressed as ranges, any intervening values, and any individual values, between the stated ranges and individual values are contemplated as being within the scope of the current application. For example, a range from 1 to 6 should be considered to include any number from 1 to 6, for example 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2, 3, 4, 5, and 6.

Claims

1. A process for the preparation of an antistatic ultraviolet resistant yarn characterized in that, The preparation method of the anti-static anti-ultraviolet yarn comprises: in the warp sizing process, using an anti-static sizing agent containing an anti-static agent as the sizing sizing agent of the first sizing area, using an anti-ultraviolet sizing agent containing an anti-ultraviolet agent as the sizing sizing agent of the second sizing area, and controlling the warp to be always above the sizing sizing agent. The warp comprises a plurality of first areas for carrying the anti-static sizing agent, a plurality of second areas for carrying the anti-ultraviolet sizing agent, and a plurality of interlacing point areas for subsequent weaving process, and the first areas, the second areas and the interlacing point areas are not overlapped. In the first sizing area, a plurality of first pits are arranged on the surface of the first sizing roller, and each of the first pits is arranged radially and around a circumferential surface of the first sizing roller. During the rotation of the first sizing roller, part of the anti-static sizing agent is stored in each of the first pits, and then the stored part of the anti-static sizing agent is coated on one of the first areas of the yarn during the contact with the yarn. In the second sizing area, a plurality of second pits are arranged on the surface of the second sizing roller, and each of the second pits is arranged radially and around a circumferential surface of the second sizing roller. During the rotation of the second sizing roller, part of the anti-ultraviolet sizing agent is stored in each of the second pits, and then the stored part of the anti-ultraviolet sizing agent is coated on one of the second areas of the yarn during the contact with the yarn.

2. The method for preparing antistatic and UV-resistant yarn according to claim 1, characterized in that, The shape of the first pit and the second pit is independently hemispherical or square.

3. The method for preparing antistatic and UV-resistant yarn according to claim 2, characterized in that, The depth of the first pit and the second pit is independently 300-500 μm. When the shape of the first pit and the second pit is independently hemispherical, the diameter of the hemisphere is 30-150 μm, and when the shape of the first pit and the second pit is independently square, the side length is 30-150 μm.

4. The method for preparing antistatic and UV-resistant yarn according to claim 1, characterized in that, After the sizing in each sizing area, drying treatment is performed, and then the next sizing in the next sizing area is performed. Infrared heating is used for drying treatment in the first sizing area and the second sizing area, the infrared heating uses far infrared rays with a wavelength of 1-10 μm, an output power of 1-100%, and a controllable temperature of 100-160°C. And / or, in the sizing process, the warp speed is 30-40 m / min, and the sizing rate is 8-12%.

5. The method for preparing antistatic and UV-resistant yarn according to claim 1, characterized in that, The first area and the second area are arranged at intervals, and / or the warp is nylon, ethylene or propylene.

6. The method of making an antistatic ultraviolet resistant yarn according to claim 1, wherein, When sizing in each sizing area, a sizing roller is arranged to cooperate with the corresponding sizing roller to extrude the yarn and the sizing sizing agent coated on the yarn. Before the warp is introduced into the sizing roller, the warp is first subjected to a predetermined tension at the tensioning roller, and other rollers except the sizing roller are not in direct contact with the sizing sizing agent.

7. The method for preparing antistatic and UV-resistant yarn according to claim 1, characterized in that, The anti-static sizing agent comprises, by weight, 0.5-2 parts of an anti-static agent, 0.5-1 part of a surfactant, 50-60 parts of a vinyl acetate-acrylate copolymer emulsion, 1-2 parts of a softening agent, and 20-30 parts of deionized water. The anti-ultraviolet sizing agent comprises 2-4 parts of anti-ultraviolet agent, 0.5-1 part of surfactant, 40-50 parts of vinyl acetate-acrylate copolymer emulsion, 1-2 parts of softener, and 20-30 parts of deionized water.

8. The method for preparing antistatic and UV-resistant yarn according to claim 7, characterized in that, The antistatic agent comprises carbon nanotubes, and the anti-ultraviolet agent is composed of titanium dioxide and zinc oxide. In the antistatic sizing agent or the anti-ultraviolet sizing agent, the surfactant is sodium dodecyl sulfate, and the softener comprises amino polysiloxane.

9. A method of making a multi-functional fabric, characterized by, The preparation method of the multifunctional fabric comprises the following steps: after the antistatic anti-ultraviolet yarn is threaded through the warp, the multifunctional fabric with antistatic and anti-ultraviolet functions is woven by using a loom. The antistatic anti-ultraviolet yarn is prepared by using the preparation method in any one of claims 1-8. The threading process of the warp comprises the following steps: the antistatic anti-ultraviolet yarn obtained after the sizing treatment is drawn out from the warp beam, and sequentially passes through the warp stop motion piece, the heald and the reed. The weaving process of the loom comprises the following steps: the antistatic anti-ultraviolet yarn treated by the threading process is divided into upper and lower parts to form a shed, the weft yarn is introduced into the shed by using airflow, the weft yarn introduced into the shed is pushed to the weaving mouth and is tightly struck to form the fabric, and finally the woven fabric is wound.

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