Preparation method of acrylate fluoride-free anti-wicking polyester industrial yarn

Abstract

The invention provides a preparation method of acrylate fluoride-free anti-wicking polyester industrial yarns, and belongs to the technical field of polyester fibers. Adding a dispersing agent, a photoinitiator and a reactive diluent into the acrylate prepolymer, fully and uniformly mixing to obtain a fluoride-free oil component, adding the fluoride-free oil component into spinning oil to obtain the fluoride-free anti-wicking oil absorbent, and adding the fluoride-free oil component into the spinning oil according to the adding ratio of 15-20%; the polyester chips are subjected to melt extrusion, cooling and bundling, after one-time oiling is completed, drafting is conducted, a heat setting roller is subjected to two-time oiling through the fluoride-free anti-wicking oil absorption agent, strong ultraviolet light is applied for online curing, winding is conducted, the finished fluoride-free anti-wicking polyester industrial yarn is obtained, the strength of the finished fluoride-free anti-wicking polyester industrial yarn ranges from 7.2 cN / dtex to 8.0 cN / dtex, and the wicking height of the finished fluoride-free anti-wicking polyester industrial yarn ranges from 3 cm to 9 cm.

Description

Technical Field

[0001] The present application relates to a method for preparing acrylic fluorine-free anti-wicking polyester industrial yarn, belonging to the technical field of polyester fibers. Background Art

[0002] When conventional polyester industrial filament (without anti-wicking treatment) is processed into a skeleton cloth and made into a polyvinyl chloride (PVC) coated fabric, during use, the edges of the skeleton cloth are exposed. Under the influence of rain and moisture, the "wick effect" will cause the skeleton layer to absorb moisture and water and gradually become wet until the entire skeleton cloth surface is soaked, eventually causing the cloth surface to be contaminated, affecting the appearance and service life. Especially when the PVC coated fabric is used for outdoor light box advertising, artificial swimming pools and water storage containers, the skeleton layer must be made of polyester industrial filament treated with anti-wicking treatment.

[0003] Traditional waterproofing agents are usually used for umbrellas, tents, outdoor sportswear, and anti-color penetration in printing and dyeing. As far as the current market of waterproof finishing agents is concerned, fluorine-containing waterproofing agents are widely used, such as perfluorooctane sulfonyl compounds (PFOS) and perfluorooctanoic acid (PFOA). CN97195702.9A invented a water-dispersible fluorine-containing waterproof and oil-resistant agent with excellent waterproof, oil-proof and friction-resistant properties, but the C8 fluorine-containing waterproofing agent used therein is difficult to degrade, has high bioaccumulation, has certain bioaccumulation, has serious ecological problems, and is extremely harmful to human health and the environment. Therefore, C8 has been restricted for use at home and abroad. At present, oil agent companies at home and abroad have chosen C6 and C4 perfluoro compounds as substitutes for C8 to circumvent the restrictions of relevant laws and regulations. For example, Daikin Fluorochemical actively develops and promotes C6-related fluorine-containing products as substitutes, and has launched C6 (perfluorohexyl sulfonate, PFHS) products in collaboration with Dow Corning of the United States. Shandong Zhongkang New Materials Co., Ltd. specializes in the production of various textile auxiliaries, including C6 waterproofing agents and other products, providing the market with C8 alternative solutions. Although C6 and C4 compounds are less harmful to human body in terms of biological toxicity accumulation than C8, they are still perfluorinated substances, and their long-term development prospects are not optimistic.

[0004] Therefore, the development of fluorine-free waterproofing agents with more complete functions and higher performance, especially new polymers with lower surface tension, is the focus of the current development of waterproof oils. Specific methods include polyester and silicone modification, polyurethane and acrylic acid modification, acrylic acid and silicone modification, and nano-SiO2 modification. For example, CN118515907A prepared a fluorine-free waterproofing agent modified with silica / polyacrylate microspheres, which has excellent waterproof effect and washing resistance, but is limited to the field of fabric finishing and has not been applied to the preparation of anti-wicking polyester industrial yarn. Summary of the invention

[0005] In view of this, the present application provides a method for preparing acrylic fluorine-free anti-wicking polyester industrial yarn, which has the advantages of being fluorine-free, flexible oiling, rapid curing, and environmentally friendly.

[0006] Specifically, the present application is implemented through the following scheme: A method for preparing acrylic fluorine-free anti-wicking polyester industrial yarn, the steps are as follows: Step 1, adding a dispersant, a photoinitiator and a reactive diluent to an acrylate prepolymer, and mixing them thoroughly to obtain a fluorine-free oil component, and adding the fluorine-free oil component to a spinning oil to obtain a fluorine-free anti-wicking oil agent, wherein the addition ratio of the fluorine-free oil component to the spinning oil is 15-20%; Step 2, the polyester chips are melt-extruded, cooled, bundled, and after one oiling, stretched, and oiled twice on a heat setting roller, and the oil agent for the second oiling is the fluorine-free anti-wicking oil agent in step 1; Step three, applying strong ultraviolet light for online curing and winding to obtain a finished fluorine-free anti-wicking polyester industrial yarn with a strength of 7.2 to 8.0 cN / dtex and a wicking height of 3 to 9 cm.

[0007] The above preparation method selects fluorine-free acrylic material as the main material of the anti-wicking oil agent, and prepares fluorine-free anti-wicking polyester industrial yarn by configuring a reactive acrylic oil agent and adopting a separate oiling method on the polyester industrial yarn spinning line. The method has the advantages of simple operation, flexible oiling and good hydrophobicity, and solves the problem that the current use of fluorine-containing oil agents is extremely harmful to human health and the environment.

[0008] Further, as a preference: In the fluorine-free oil component, the mass percentage of each component is: Acrylate prepolymer: 50~70, Dispersant: 2-7, Photoinitiator: 2~7, Active diluent: 20~50.

[0009] The acrylate prepolymer is any one of epoxy acrylate prepolymer, polyurethane acrylate prepolymer, polyester acrylate prepolymer, silicone-modified acrylate prepolymer, and polyether acrylate prepolymer. More preferably, the acrylate prepolymer is any one of DH-3066, photomer6363, photomer5806, SJ-804, and TPULP9215.

[0010] The photoinitiator is 2,4,6-trimethylbenzoyl-diphenylphosphine oxide (TPO) or 2-hydroxy-2-methyl-1-phenyl-1-propanone.

[0011] The active diluents are trimethylolpropane triacrylate (TMPTA) and tripropylene glycol diacrylate (TPGDA).

[0012] The dispersant is any one of ethoxylated alcohol, ethoxylated carboxylic acid and polyethylene wax.

[0013] In step 2, The polyester chips are high-viscosity chips with an intrinsic viscosity of 0.8 to 1.2 dL / g and a melt extrusion temperature of 290 to 305°C.

[0014] The first oiling step uses conventional spinning oil, and the oiling method adopts oil tanker oiling or oil nozzle oiling, the oiling speed is 1-5 mL / min, the oil temperature is controlled at 20-30°C, and the oiling rate is 0.30-0.40%.

[0015] The oiled silk is drawn by five pairs of rollers. The first pair of rollers are preheating rollers with a drawing temperature of 70-80 ℃ and a heating time of 5-10 s. The second pair of hot rollers are pre-stretching with a stretching multiple of 1.2-1.4 times and a temperature of 90-100 ℃. The third pair of rollers are main stretching with a stretching multiple of 3.7-4.2 times and a temperature of 100-150 ℃ and a heating time of 5-15 s. The fourth pair of rollers are secondary stretching with a stretching multiple of 1.3-1.5 times and a heating temperature of 150-180 ℃. The fifth pair of rollers are heat setting rollers with a heating temperature of 180-200 ℃ and a heating time of 5-7 s.

[0016] After the second oiling point is selected in the shaping section, the oiling method is oiling by oil tanker or oil nozzle, the oiling speed is 1-5 mL / min, the oil temperature is controlled at 20-40°C, and the oiling rate is 0.35-0.45%.

[0017] In step 3, the wavelength of the strong ultraviolet light is 360-365 nm and the intensity is 50-100 mW / cm 2 , irradiation time 50-60 s.

[0018] Compared with the existing anti-wicking fiber preparation technology, the beneficial effects of the present application are summarized as follows: (1) Compared with the commonly used waterproof oils containing perfluorooctane sulfonyl derivatives (PFOS) and perfluorooctanoic acid (PFOA) in the polyester field, the method proposed in the present invention does not require the use of fluorine-containing substances that are extremely harmful to human health and the environment, and therefore has outstanding health and environmental advantages.

[0019] (2) Currently, there is a lack of similar products of fluorine-free anti-wicking oil agents on the market, and the anti-wicking performance of fabric waterproofing agents on the fiber surface is poor. The fluorine-free anti-wicking fiber prepared by the present invention has a wicking height of 3 to 9 mm, which is comparable to the hydrophobic effect of fluorine-containing anti-wicking oil agents.

[0020] (3) Compared with the method of obtaining the anti-wicking effect by post-treatment of the fiber, the method of the present invention has the characteristics of one-step fiber spinning modification, fast curing speed, and flexible oiling points. It can be easily implemented using existing spinning equipment, has low technical transformation costs, and is suitable for continuous large-scale production. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the technical solutions of this application will be further described in detail below in combination with the specific cases in the embodiments of this application. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit the technical solutions of this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] Example 1

[0023] 2 parts by mass of ethoxylated alcohol, 2 parts by mass of TPO and 50 parts by mass of trimethylolpropane triacrylate (TMPTA) were added to 50 parts by mass of epoxy acrylate prepolymer (DH-3066), and the mixture was fully mixed to obtain a fluorine-free oil component, which was added to FDY spinning oil TF-710 at an addition ratio of 15% to obtain a fluorine-free anti-wicking oil agent.

[0024] Polyester spinning adopts the melt spinning method. The melt passes through the spinneret hole and then slowly cools and blows on the side, is bundled, and is oiled once. It is then stretched multiple times and oiled twice on a heat-setting roller. Strong ultraviolet light is applied for rapid online curing, and then it is wound to prepare fluorine-free acrylic anti-wicking polyester industrial yarn.

[0025] The polyester used was a high-viscosity chip with an intrinsic viscosity of 0.8 dL / g, and the melt spinning temperature was 305 °C.

[0026] The first oiling agent was FDY spinning oil TF-710 (Zhejiang Chuanhua Co., Ltd.), and the oiling method was adopted. The oiling speed was 1 mL / min, the oil temperature was controlled at 20°C, and the oiling rate was 0.30%.

[0027] The oiled silk is stretched by five pairs of rollers. The first pair of rollers are preheating rollers with a stretching temperature of 70 ℃ and a heating time of 5 s. The second pair of hot rollers are pre-stretching with a stretching ratio of 1.2 times and a temperature of 90 ℃. The third pair of rollers are main stretching with a stretching ratio of 3.7 times, a temperature of 100 ℃ and a heating time of 5 s. The fourth pair of rollers are secondary stretching with a stretching ratio of 1.3 times and a heating temperature of 150 ℃. The fifth pair of rollers are heat setting rollers with a heating temperature of 180 ℃ and a heating time of 5 s.

[0028] The second oiling agent is the fluorine-free anti-wicking oil agent prepared by the above method. The oiling agent is applied by an oil tanker, the oiling speed is 1 mL / min, the oiling temperature is controlled at 20 °C, and the oiling rate is 0.35%.

[0029] The curing was carried out at a wavelength of 360 nm and an intensity of 50 mW / cm 2 UV irradiation for 50 s.

[0030] The obtained anti-wicking polyester industrial yarn has a strength of 7.2 cN / dtex and a wicking height of 3 cm.

[0031] Example 2

[0032] 3 parts by mass of ethoxylated alcohol, 4 parts by mass of TPO and 20 parts by mass of trimethylolpropane triacrylate (TMPTA) were added to 60 parts by mass of polyurethane acrylate prepolymer (photomer6363), and the mixture was fully mixed to obtain a fluorine-free oil component, which was added to FDY spinning oil TF-710 at an addition ratio of 17% to obtain a fluorine-free anti-wicking oil agent.

[0033] Polyester spinning adopts the melt spinning method. The melt passes through the spinneret hole and then slowly cools and blows on the side, is bundled, and is oiled once. It is then stretched multiple times and oiled twice on a heat-setting roller. Strong ultraviolet light is applied for rapid online curing, and then it is wound to prepare fluorine-free acrylic anti-wicking polyester industrial yarn.

[0034] The polyester used was a high-viscosity chip with an intrinsic viscosity of 0.9 dL / g, and the melt spinning temperature was 290 °C.

[0035] The first oiling agent was FDY spinning oil TF-710, and the oiling method was adopted. The oiling speed was 2 mL / min, the oil temperature was controlled at 24°C, and the oiling rate was 0.32%.

[0036] The oiled silk is stretched by five pairs of rollers. The first pair of rollers are preheating rollers with a stretching temperature of 70 ℃ and a heating time of 6 s. The second pair of hot rollers are pre-stretching with a stretching ratio of 1.2 times and a temperature of 90 ℃. The third pair of rollers are main stretching with a stretching ratio of 3.8 times, a temperature of 110 ℃ and a heating time of 7 s. The fourth pair of rollers are secondary stretching with a stretching ratio of 1.4 times and a heating temperature of 150 ℃. The fifth pair of rollers are heat setting rollers with a heating temperature of 190 ℃ and a heating time of 6 s.

[0037] The second oiling agent is the fluorine-free anti-wicking oil agent prepared by the above method. The oiling agent is applied by an oil tanker, the oiling speed is 2 mL / min, the oiling temperature is controlled at 30 °C, and the oiling rate is 0.38%.

[0038] The curing was performed at a wavelength of 361 nm and an intensity of 60 mW / cm 2 UV irradiation for 52 s.

[0039] The obtained anti-wicking polyester industrial yarn has a strength of 7.3 cN / dtex and a wicking height of 4 cm.

[0040] Example 3

[0041] 4 parts by mass of ethoxylated carboxylic acid, 5 parts by mass of TPO and 30 parts by mass of tripropylene glycol diacrylate (TPGDA) were added to 70 parts by mass of polyester acrylate prepolymer (photomer5806), and the mixture was fully mixed to obtain a fluorine-free oil component, which was added to FDY spinning oil TF-710 at an addition ratio of 18% to obtain a fluorine-free anti-wicking oil agent.

[0042] Polyester spinning adopts the melt spinning method. The melt passes through the spinneret hole and then slowly cools and blows on the side, is bundled, and is oiled once. It is then stretched multiple times and oiled twice on a heat-setting roller. Strong ultraviolet light is applied for rapid online curing, and then it is wound to prepare fluorine-free acrylic anti-wicking polyester industrial yarn.

[0043] The polyester used was a high-viscosity chip with an intrinsic viscosity of 1.0 dL / g, and the melt spinning temperature was 305 °C.

[0044] The first oiling agent was FDY spinning oil TF-710, and the oiling method was adopted. The oiling speed was 3 mL / min, the oil temperature was controlled at 26°C, and the oiling rate was 0.36%.

[0045] The oiled silk is stretched by five pairs of rollers. The first pair of rollers are preheating rollers with a stretching temperature of 70 ℃ and a heating time of 5 s. The second pair of hot rollers are pre-stretching with a stretching ratio of 1.2 times and a temperature of 90 ℃. The third pair of rollers are main stretching with a stretching ratio of 4.1 times, a temperature of 130 ℃ and a heating time of 10 s. The fourth pair of rollers are secondary stretching with a stretching ratio of 1.3 times and a heating temperature of 170 ℃. The fifth pair of rollers are heat setting rollers with a heating temperature of 180 ℃ and a heating time of 5 s.

[0046] The second oiling agent is the fluorine-free anti-wicking oil agent prepared by the above method. The oiling agent is applied by an oil tanker, the oiling speed is 3 mL / min, the oiling temperature is controlled at 40 °C, and the oiling rate is 0.41%.

[0047] The curing wavelength was 362 nm and the intensity was 70 mW / cm 2 UV irradiation for 54 s.

[0048] The obtained anti-wicking polyester industrial yarn has a strength of 7.4 cN / dtex and a wicking height of 6 cm.

[0049] Example 4

[0050] To 60 parts by mass of a silicone-modified acrylate prepolymer (SJ-804), 5 parts by mass of ethoxylated carboxylic acid, 6 parts by mass of 2-hydroxy-2-methyl-1-phenyl-1-propanone, and 50 parts by mass of tripropylene glycol diacrylate (TPGDA) were added and mixed thoroughly to obtain a fluorine-free oil component, which was added to FDY spinning oil TF-710 at an addition ratio of 19% to obtain a fluorine-free anti-wicking oil agent.

[0051] Polyester spinning adopts the melt spinning method. The melt passes through the spinneret hole and then slowly cools and blows on the side, is bundled, and is oiled once. It is then stretched multiple times and oiled twice on a heat-setting roller. Strong ultraviolet light is applied for rapid online curing, and then it is wound to prepare fluorine-free acrylic anti-wicking polyester industrial yarn.

[0052] The polyester used was a high-viscosity chip with an intrinsic viscosity of 1.1 dL / g, and the melt spinning temperature was 290 °C.

[0053] The first oiling agent was FDY spinning oil TF-710, and the oiling method was adopted. The oiling speed was 4 mL / min, the oil temperature was controlled at 28°C, and the oiling rate was 0.38%.

[0054] The oiled silk is stretched by five pairs of rollers. The first pair of rollers are preheating rollers with a stretching temperature of 80 ℃ and a heating time of 10 s. The second pair of hot rollers are pre-stretching with a stretching ratio of 1.2 times and a temperature of 90 ℃. The third pair of rollers are main stretching with a stretching ratio of 3.4.0 times, a temperature of 140 ℃ and a heating time of 5 s. The fourth pair of rollers are secondary stretching with a stretching ratio of 1.4 times and a heating temperature of 150 ℃. The fifth pair of rollers are heat setting rollers with a heating temperature of 190 ℃ and a heating time of 7 s.

[0055] The second oiling agent is the fluorine-free anti-wicking oil agent prepared by the above method. The oiling agent is applied by oil tanker, the oiling speed is 5 mL / min, the oiling temperature is controlled at 30 °C, and the oiling rate is 0.43%.

[0056] The curing wavelength was 363 nm and the intensity was 80 mW / cm 2 UV irradiation for 58 s.

[0057] The obtained anti-wicking polyester industrial yarn has a strength of 7.5 cN / dtex and a wicking height of 4 cm.

[0058] Example 5

[0059] 7 parts by mass of polyethylene wax, 7 parts by mass of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 50 parts by mass of trimethylolpropane triacrylate (TMPTA) were added to 70 parts by mass of polyether acrylate prepolymer (TPULP9215), and the mixture was fully mixed to obtain a fluorine-free oil component, which was added to FDY spinning oil TF-710 at a ratio of 20% to obtain a fluorine-free anti-wicking oil agent.

[0060] Polyester spinning adopts the melt spinning method. The melt passes through the spinneret hole and then slowly cools and blows on the side, is bundled, and is oiled once. It is then stretched multiple times and oiled twice on a heat-setting roller. Strong ultraviolet light is applied for rapid online curing, and then it is wound to prepare fluorine-free acrylic anti-wicking polyester industrial yarn.

[0061] The polyester used was a high-viscosity chip with an intrinsic viscosity of 1.2 dL / g, and the melt spinning temperature was 290 °C.

[0062] The first oiling agent was FDY spinning oil TF-710, and the oiling method was adopted. The oiling speed was 5 mL / min, the oil temperature was controlled at 0.30℃, and the oiling rate was 0.40%.

[0063] The oiled silk is drawn by five pairs of rollers. The first pair of rollers are preheating rollers with a drawing temperature of 80 ℃ and a heating time of 10 s. The second pair of hot rollers are pre-stretching with a stretching ratio of 1.4 times and a temperature of 100 ℃. The third pair of rollers are main stretching with a stretching ratio of 4.2 times, a temperature of 150 ℃ and a heating time of 15 s. The fourth pair of rollers are secondary stretching with a stretching ratio of 1.5 times and a heating temperature of 180 ℃. The fifth pair of rollers are heat setting rollers with a heating temperature of 200 ℃ and a heating time of 7 s.

[0064] The second oiling agent is the fluorine-free anti-wicking oil agent prepared by the above method. The oiling agent is applied by oil tanker, the oiling speed is 4 mL / min, the oiling temperature is controlled at 40 °C, and the oiling rate is 0.45%.

[0065] The curing was performed at a wavelength of 365 nm and an intensity of 100 mW / cm 2 UV irradiation for 60 s.

[0066] The obtained anti-wicking polyester industrial yarn has a strength of 8.0 cN / dtex and a wicking height of 9 cm.

[0067] The above-mentioned embodiments only express several feasible implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention, and the embodiments are not used to limit the scope of protection in the claims of the present invention. For ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, and all equivalent implementations or changes that do not depart from the present invention should be included in the technology of the present invention.

Claims

1. A method for preparing acrylic fluorine-free anti-wicking polyester industrial yarn, characterized in that: Here are the steps: Step 1: adding a dispersant, a photoinitiator and a reactive diluent to an acrylate prepolymer, and mixing them thoroughly to obtain a fluorine-free oil component, and adding the fluorine-free oil component to a conventional spinning oil to obtain a fluorine-free anti-wicking oil agent, wherein the addition ratio of the fluorine-free oil component to the spinning oil is 15-20%; Step 2, the polyester chips are melt-extruded, cooled, bundled, and after one oiling, stretched, and oiled twice on a heat setting roller, and the oil agent for the second oiling is the fluorine-free anti-wicking oil agent in step 1; Step three, applying strong ultraviolet light for online curing and winding to obtain a finished fluorine-free anti-wicking polyester industrial yarn with a strength of 7.2 to 8.0 cN / dtex and a wicking height of 3 to 9 cm.

2. The method for preparing an acrylic fluorine-free anti-wicking polyester industrial yarn according to claim 1, characterized in that: In the fluorine-free oil, the mass percentage of each component is: Acrylate prepolymer: 50~70, Dispersant: 2-7, Photoinitiator: 2~7, Active diluent: 20~50.

3. The method for preparing an acrylic fluorine-free anti-wicking polyester industrial yarn according to claim 1, characterized in that: The acrylate prepolymer is any one of epoxy acrylate prepolymer, polyurethane acrylate prepolymer, polyester acrylate prepolymer, silicone-modified acrylate prepolymer and polyether acrylate prepolymer.

4. The method for preparing an acrylic fluorine-free anti-wicking polyester industrial yarn according to claim 3, characterized in that: The acrylate prepolymer is any one of DH-3066, photomer6363, photomer5806, SJ-804, and TPULP9215.

5. The method for preparing an acrylic fluorine-free anti-wicking polyester industrial yarn according to claim 1, characterized in that: The photoinitiator is 2,4,6-trimethylbenzoyl-diphenylphosphine oxide or 2-hydroxy-2-methyl-1-phenyl-1-propanone; and the active diluent is trimethylolpropane triacrylate or tripropylene glycol diacrylate.

6. The method for preparing an acrylic fluorine-free anti-wicking polyester industrial yarn according to claim 1, characterized in that: In step 2, the intrinsic viscosity of the polyester chips is 0.8-1.2 dL / g, and the melt extrusion temperature is 290-305°C.

7. The method for preparing an acrylic fluorine-free anti-wicking polyester industrial yarn according to claim 1, characterized in that: The first oiling step uses conventional spinning oil, and the oiling method adopts oil tanker oiling or oil nozzle oiling, the oiling speed is 1-5 mL / min, the oil temperature is controlled at 20-30°C, and the oiling rate is 0.30-0.40%.

8. The method for preparing an acrylic fluorine-free anti-wicking polyester industrial yarn according to claim 1, characterized in that: In step 2, a strand of oiled silk is stretched by five pairs of rollers, wherein the first pair of rollers are preheating rollers, the stretching temperature is 70-80°C, and the heating time is 5-10 s; the second pair of hot rollers are pre-stretching, the stretching multiple is 1.2-1.4 times, the temperature is 90-100°C; the third pair of main stretching, the stretching multiple is 3.7-4.2 times, the temperature is 100-150°C, and the heating time is 5-15 s; the fourth pair of rollers are secondary stretching, the stretching multiple is 1.3-1.5 times, the heating temperature is 150-180°C; the fifth pair of rollers are heat setting rollers, the heating temperature is 180-200°C, and the heating time is 5-7 s.

9. The method for preparing an acrylic fluorine-free anti-wicking polyester industrial yarn according to claim 1, characterized in that: After the second oiling point is selected in the shaping section, the oiling method is oiling by oil tanker or oil nozzle, the oiling speed is 1-5 mL / min, the oil temperature is controlled at 20-40°C, and the oiling rate is 0.35-0.45%.

10. The method for preparing an acrylic fluorine-free anti-wicking polyester industrial yarn according to claim 1, characterized in that: In step 3, the wavelength of the strong ultraviolet light is 360-365 nm and the intensity is 50-100 mW / cm 2 , irradiation time 50 to 60 seconds.