Antistatic textile fabric and method for producing the same

Abstract

The application discloses an antistatic textile fabric and a preparation method thereof, and belongs to the technical field of layered products. The fabric is prepared by finishing wool fabric with a finishing liquid containing an antistatic agent for wool and a penetrating agent. The antistatic agent for wool is prepared by ring-opening addition of polyethylene glycol and epichlorohydrin to obtain an intermediate, and then quaternary ammonium reaction with alkyl tertiary amine to obtain the antistatic agent for wool, wherein the alkyl tertiary amine is composed of N,N-dimethyldodecyl tertiary amine and behenyl dimethyl tertiary amine. The preparation method comprises spinning, weaving, pretreatment and antistatic finishing. Compared with the prior art, the antistatic agent can be firmly adsorbed on wool fibers, is resistant to washing and does not need high-temperature baking. The asymmetric molecules generated by the compounding of long-chain and short-chain tertiary amines produce synergistic effects on antistatic performance and anti-felting performance, the fabric has low surface resistance and small area shrinkage after washing, and has excellent comprehensive performance.

Description

Technical Field

[0001] This invention relates to the field of layered product technology, and in particular to an antistatic textile fabric and its preparation method. Background Technology

[0002] Wool fabrics are prone to static electricity when worn and rubbed in dry environments, attracting dust and affecting comfort. Simultaneously, the scaly layer on the surface of wool fibers makes them susceptible to felting and shrinkage under humid, hot washing and mechanical action, leading to dimensional deformation. Currently, there are two main methods for imparting antistatic properties to wool fabrics: one is to blend and interweave conductive fibers with wool, allowing the conductive fibers to conduct static charge; the other is to impregnate the fabric with surfactant-based antistatic agents such as quaternary ammonium salts and polyethers, eliminating static electricity through moisture absorption and conductivity. However, the former affects the fabric's feel and appearance and is costly, while the latter has weak fiber bonding, poor wash resistance, and usually requires high-temperature baking for fixation, easily causing yellowing and a decrease in strength. Neither method can simultaneously address the wool's need for anti-felt shrinkage.

[0003] A search revealed the following prior art similar to this invention: First, Chinese invention patent CN 1724733A discloses a method for producing antistatic worsted wool fabrics by blending conductive nylon with wool and polyester. This method relies on the incorporation of conductive fibers to achieve antistatic properties, limiting the fabric's feel and appearance, increasing costs, and failing to address the felting problem of wool. Second, Chinese invention patent CN103981722A discloses an antistatic finishing method for wool blended fabrics, using a finishing agent composed of polyether block hydrophilic silicone oil and an antistatic agent for padding and finishing. This method relies primarily on physical adsorption between the finishing agent and fibers, resulting in limited wash resistance and failing to address the wool's anti-felting properties. Third, Chinese invention patent CN104831533... Patent A discloses a treatment method that gives the surface of protein fabrics antibacterial and antistatic properties. It introduces quaternary ammonium salt groups on the surface of protein fibers through chemical treatment, giving the fabric antibacterial and antistatic properties. Its disadvantage is that the function focuses on antibacterial, and the antistatic system is not designed for the wool scale structure, so it cannot solve the problem of simultaneously achieving antistatic, anti-felt shrinkage, and wash-resistant adhesion.

[0004] In summary, existing technologies have the following problems: general antistatic agents mainly rely on moisture absorption and conductivity, resulting in weak bonding with wool fibers, and their antistatic effect rapidly diminishes after washing; high-temperature baking to improve wash resistance causes yellowing and a decrease in wool strength; antistatic treatment and anti-felting treatment are independent processes, making it difficult to achieve both with a single agent. Therefore, there is an urgent need to develop a wool fabric finishing technology that is tailored to the structural characteristics of wool fibers, can be firmly fixed at low temperatures, is washable, and combines antistatic and anti-felting properties. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention aims to provide an antistatic textile fabric and its preparation method.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: An antistatic textile fabric is obtained by treating wool greige fabric with an antistatic finishing liquid, wherein the antistatic finishing liquid contains an antistatic agent for wool; the antistatic agent for wool is obtained by a ring-opening addition reaction of polyethylene glycol and epichlorohydrin under the action of a catalyst to obtain an intermediate, and the intermediate is then obtained by a quaternization reaction with an alkyl tertiary amine.

[0007] The alkyl tertiary amine is at least one selected from N,N-dimethyldodecyl tertiary amine, N,N-dimethyltetradecyl tertiary amine, N,N-dimethylhexadecyl tertiary amine, N,N-dimethyloctadecyl tertiary amine, and docosyldimethyl tertiary amine.

[0008] Preferably, the alkyl tertiary amine is composed of a compound of N,N-dimethyldodecyl tertiary amine and docosyldimethyl tertiary amine.

[0009] More preferably, in the alkyl tertiary amine, the mass ratio of N,N-dimethyldodecyl tertiary amine to docosyldimethyl tertiary amine is 1:5 to 1:1.

[0010] More preferably, the mass ratio of N,N-dimethyldodecyl tertiary amine to docosyldimethyl tertiary amine is 1:3 to 1:2.

[0011] In the antistatic finishing solution, the amount of antistatic agent for wool is 15-25 g / L, the amount of penetrant JFC is 0.5-1.5 g / L, and the pH value of the antistatic finishing solution is 5.0-6.0.

[0012] The wool fabric is woven from wool yarn with a linear density of 14-18 tex in a plain weave, with a warp density of 210-230 threads / 10cm and a weft density of 190-210 threads / 10cm.

[0013] In the preparation of the antistatic agent for wool, the intermediate preparation steps are as follows: by weight, 80-120 parts of polyethylene glycol, 15-20 parts of epichlorohydrin and 0.3-0.8 parts of boron trifluoride diethyl ether complex catalyst are mixed evenly, nitrogen gas is introduced for protection, and the reaction is kept at 55-65℃ for 3-5 hours to obtain the intermediate.

[0014] In the preparation of the antistatic agent for wool, the quaternization reaction step is as follows: 50-60 parts of alkyl tertiary amine and 35-45 parts of isopropanol are added to the intermediate, and the mixture is refluxed at 75-85℃ for 6-10 hours; after the reaction is completed, the isopropanol is removed by vacuum distillation to obtain the antistatic agent for wool.

[0015] The method for preparing the antistatic textile fabric includes the following steps: S1. Spinning: Using wool fibers as raw materials, wool yarn is produced by sequentially going through the processes of wool mixing, carding, combing and ring spinning. S2, Weaving: Weaving wool yarn onto a loom to obtain wool fabric; S3. Pretreatment: The wool fabric is washed with a non-ionic detergent, and then rinsed, dehydrated and dried to obtain the fabric to be finished. S4. Antistatic finishing: The fabric to be finished is immersed in an antistatic finishing solution containing wool-grade antistatic agent and penetrant JFC, dipped and rolled once, dried, and then stretched and set to obtain an antistatic textile fabric.

[0016] In step S3, the nonionic detergent is fatty alcohol polyoxyethylene ether AEO-9, with a dosage of 1.5-2.5 g / L, a bath ratio of 1:15-25, a washing temperature of 35-45℃, and a washing time of 15-25 min.

[0017] In step S4, the roll residue rate is 70-80%, the drying temperature is 85-95℃, and the drying time is 2-4 min; the stretching and setting temperature is 95-105℃, and the machine speed is 25-35 m / min.

[0018] Wool fibers easily accumulate static electricity in dry environments, and their surface scales tend to felt during wet and hot washing due to the difference in friction between the clockwise and counterclockwise scale directions. General antistatic agents have weak adhesion to fibers, are not wash-resistant, and require high-temperature baking for fixation, which can easily cause yellowing and damage to the wool's strength. To address these problems, this invention designs an antistatic agent with a polyether segment in the middle, quaternary ammonium cationic groups at both ends, and long-chain alkyl groups attached. The quaternary ammonium cationic groups electrostatically adsorb onto the negatively charged groups on the wool fiber surface, achieving strong fixation at low temperatures. The polyether segment absorbs moisture to form a conductive water film, accelerating the leakage of static charge. The long-chain alkyl groups form a lubricating film on the scale surface, inhibiting unidirectional fiber peristalsis. This single molecule simultaneously solves both static electricity and felting defects.

[0019] Antistatic agents prepared from single-chain tertiary amines exhibit a trade-off between performance: short-chain tertiary amines offer good antistatic properties but poor lubrication and anti-felting, while long-chain tertiary amines provide good anti-felting but have slow conductivity, making it difficult to achieve a balance. To address this issue, this invention combines short-chain N,N-dimethyldodecyl tertiary amine with long-chain docosyldimethyl tertiary amine and then quaternizes them. This results in an asymmetric molecule with one short-chain end and the other long-chain end. The long-chain end provides anchoring lubrication, while the short-chain end conducts electricity outwards. The two molecules are structurally complementary on the same molecule, achieving a synergistic effect of antistatic and anti-felting properties.

[0020] The blending ratio directly affects the proportion of asymmetric molecules generated. When the ratio is imbalanced, the product is dominated by two short-chain or two long-chain molecules, and the synergistic effect is diluted. To address this issue, this invention optimizes the blending ratio of two tertiary amines so that, when converted to a molar ratio, they are close to equimolar, maximizing the proportion of asymmetric molecules and achieving an optimal balance between conductivity and lubrication. Simultaneously, it incorporates gentle low-temperature pretreatment and low-temperature finishing processes to avoid felting and heat damage to the wool during processing.

[0021] Compared with existing technologies, it has the following advantages: 1) The antistatic agent of the present invention is fixed by electrostatic adsorption of quaternary ammonium cations to wool fibers, which is firmly bonded and water-resistant. The finishing does not require high-temperature baking, thus avoiding yellowing and strong damage to the wool.

[0022] 2) This invention combines long and short chain tertiary amines with quaternization, resulting in asymmetric molecules with anchoring and lubrication at the long chain end and migration and conductivity at the short chain end. This produces a synergistic effect of antistatic and anti-felting, which is superior to any single component.

[0023] 3) The preferred compound ratio of this invention maximizes the proportion of asymmetric molecules, achieves the best balance between conductivity and lubrication, and results in excellent antistatic and anti-shrinkage properties of the fabric, as well as a soft hand feel and low itching sensation. Detailed Implementation

[0024] Main source of materials: Wool fiber, combed sheep wool tops, with an average fineness of 19-23μm and an average length of ≥50mm.

[0025] Fatty alcohol polyoxyethylene ether AEO-9, CAS number 68131-39-5, AEO-9, carbon chain length C12-C15, ethylene oxide addition number 8-10, industrial grade, active ingredient content ≥99%, used as a detergent.

[0026] JFC, a penetrant, is a mixture of fatty alcohol polyoxyethylene ethers with carbon chain lengths of C7-C9 and ethylene oxide addition numbers of 5-6. It is of industrial grade, has a penetrating power of ≤5s, and was purchased from Jiangsu Haian Petrochemical. It is used as a penetrant.

[0027] Glacial acetic acid, CAS number 64-19-7, industrial grade, purity ≥99%.

[0028] Polyethylene glycol, CAS number 25322-68-3, average molecular weight 950-1050, hydroxyl value 107~118mgKOH / g.

[0029] Epichlorohydrin, CAS No. 106-89-8, is an industrial grade 1 product with a purity of ≥99.5% and a moisture content of ≤0.1%.

[0030] Boron trifluoride diethyl ether complex, CAS number 109-63-7, boron trifluoride content 46.5%~47.8%, analytical grade.

[0031] N,N-Dimethyldodecyl tertiary amine, CAS number 112-18-5, purity ≥97%.

[0032] N,N-Dimethyltetradecyl tertiary amine, CAS number 112-75-4, purity ≥97%.

[0033] N,N-Dimethylhexadecyl tertiary amine, CAS number 112-69-6, purity ≥97%.

[0034] N,N-Dimethyloctadecyl tertiary amine, CAS number 124-28-7, purity ≥97%.

[0035] Didodecyl dimethyl tertiary amine, CAS number 21542-96-1, purity ≥95%.

[0036] Isopropanol, CAS No. 67-63-0, industrial grade, purity ≥99.7%.

[0037] All other raw materials used in the embodiments and comparative examples of this invention are commercially available products.

[0038] Example 1 A method for preparing an antistatic textile fabric is as follows, in parts by weight: S1, spinning Using wool fibers as raw materials, wool yarn with a linear density of 16.7 tex is produced through a series of processes including wool blending, carding, combing, and ring spinning. S2, Weaving The wool yarn is woven on a loom using a plain weave, with a warp density of 220 threads / 10cm and a weft density of 200 threads / 10cm, to obtain the wool fabric. S3, Preprocessing The wool fabric is gently washed: fatty alcohol polyoxyethylene ether AEO-9 is used as a non-ionic detergent in the washing solution, with a dosage of 2g / L, a liquor ratio of 1:20, a temperature of 40℃, and a time of 20min. The fabric is fed into the washing machine in a flat width. After washing, it is rinsed twice with clean water, dehydrated, and dried at 80℃ to obtain the fabric to be finished. S4, Antistatic Finishing Take antistatic agent and penetrant JFC for wool, add water to prepare finishing solution components of 20g / L and 1g / L respectively, adjust the pH value of the finishing solution to 5.5 with glacial acetic acid, immerse the fabric to be finished in the finishing solution, one dip and one nibble, with a nibble rate of 75%; dry at 90℃ for 3min; then stretch and set with hot air at 100℃ at a speed of 30m / min to obtain antistatic textile fabric.

[0039] The method for preparing the antistatic agent for wool is as follows: S1. In a four-necked flask equipped with a stirrer, a reflux condenser and a nitrogen protection device, add 100 parts of polyethylene glycol, 18 parts of epichlorohydrin and 0.5 parts of boron trifluoride diethyl ether complex catalyst, stir and mix evenly; purge with nitrogen, heat to 60°C, and keep the reaction at this temperature for 4 hours to obtain the intermediate. S2. Add 56 parts of alkyl tertiary amine and 40 parts of isopropanol to the above intermediate, heat to 80°C, and reflux for 8 hours. After the reaction is completed, remove the isopropanol by vacuum distillation at a vacuum degree of 0.09 MPa and a temperature of 70°C to obtain an antistatic agent for wool.

[0040] The alkyl tertiary amine is N,N-dimethyldodecyl tertiary amine.

[0041] Example 2 The preparation method of an antistatic textile fabric is basically the same as that in Example 1, except that the alkyl tertiary amine used in the preparation method of the antistatic agent for wool is N,N-dimethyltetradecyl tertiary amine.

[0042] Example 3 The preparation method of an antistatic textile fabric is basically the same as that in Example 1, except that the alkyl tertiary amine used in the preparation method of the antistatic agent for wool is N,N-dimethylhexadecyl tertiary amine.

[0043] Example 4 The preparation method of an antistatic textile fabric is basically the same as that in Example 1, except that the alkyl tertiary amine used in the preparation method of the antistatic agent for wool is N,N-dimethyloctadecyl tertiary amine.

[0044] Example 5 The preparation method of an antistatic textile fabric is basically the same as that in Example 1, except that the alkyl tertiary amine used in the preparation method of the antistatic agent for wool is docosyldimethylamine.

[0045] Example 6 The preparation method of an antistatic textile fabric is basically the same as that in Example 1, except that the alkyl tertiary amine used in the preparation method of the wool antistatic agent is composed of N,N-dimethyldodecyl tertiary amine and docosyldimethyl tertiary amine in a mass ratio of 1:1.

[0046] Example 7 The preparation method of an antistatic textile fabric is basically the same as that in Example 1, except that the alkyl tertiary amine used in the preparation method of the wool antistatic agent is composed of N,N-dimethyltetradecyl tertiary amine and N,N-dimethylhexadecyl tertiary amine in a mass ratio of 1:1.

[0047] Example 8 The preparation method of an antistatic textile fabric is basically the same as that in Example 1, except that the alkyl tertiary amine used in the preparation method of the wool antistatic agent is composed of N,N-dimethyldodecyl tertiary amine and docosyldimethyl tertiary amine in a mass ratio of 2:5.

[0048] Example 9 The preparation method of an antistatic textile fabric is basically the same as that in Example 1, except that the alkyl tertiary amine used in the preparation method of the wool antistatic agent is composed of N,N-dimethyldodecyl tertiary amine and docosyldimethyl tertiary amine in a mass ratio of 1:5.

[0049] Comparative Example 1 The preparation method of an antistatic textile fabric is basically the same as that in Example 1, except that the wool antistatic agent is not added.

[0050] Test Example 1 Anti-felting shrinkage performance test: Fabrics prepared in Examples 1-9 and Comparative Example 1 were used to prepare three 500mm × 500mm samples. Three pairs of reference points, spaced 350mm apart, were marked along the warp and weft directions at a distance of 50mm from each edge. The spacing between these reference points before washing was measured and recorded. Following GB / T 8629-2017 "Home Washing and Drying Procedures for Textile Testing", a gentle washing program at 40℃ was used with standard detergent. The samples were washed five times consecutively, and then laid flat to dry. The spacing between the reference points after washing was measured according to GB / T 8630 "Determination of Dimensional Changes After Washing and Drying of Textiles". The area shrinkage rate was calculated using the following formula: Area shrinkage rate (%) = (Pre-wash reference area - Post-wash reference area) / Pre-wash reference area × 100%. The arithmetic mean of the three samples in each group was taken as the test result. A smaller area shrinkage rate indicates better anti-felting properties imparted to the fabric by the antistatic finishing. The results are shown in Table 1.

[0051] Table 1

[0052] Test Example 2 Antistatic performance test: Three samples were cut from the fabrics prepared in Examples 1-9 and Comparative Example 1, respectively, and placed in an environment with a temperature of 20±2℃ and a relative humidity of 35±5% for 24 hours to acclimate. Referring to GB / T 12703.4-2010 "Evaluation of Electrostatic Properties of Textiles - Part 4: Resistivity", a surface resistance tester was used. A DC test voltage of 100V was applied, and the surface resistance value was read after 1 minute of energization. Three different locations were measured on each sample, and the average value was taken. The arithmetic mean of the three samples was used as the test result for each group of samples. The lower the surface resistance, the better the antistatic performance of the fabric. The test results are shown in Table 2.

[0053] Table 2

[0054] In Comparative Example 1, without antistatic treatment, the scales on the surface of the wool fibers, under wet and hot washing and mechanical action, exhibited unidirectional peristalsis and interlocking due to the friction difference between the clockwise and counterclockwise scale directions, resulting in significant felting. Furthermore, the fiber surface lacked conductive pathways, making it easy for static charge to accumulate and difficult to leak. The antistatic agents used in Examples 1-5 consisted of polyether segments in the middle and quaternary ammonium cationic groups at both ends, connected to long-chain alkyl groups. The quaternary ammonium cations were firmly adsorbed to the negatively charged groups on the wool fiber surface through electrostatic interactions, causing the antistatic agent to be directionally fixed to the fiber surface. The polyether segments adsorbed moisture from the air to form a conductive water film, and the quaternary ammonium cations themselves could also migrate and conduct electricity, both accelerating the leakage of static charge. The long-chain alkyl groups were oriented on the scale surface to form a lubricating film, reducing the friction difference between the clockwise and counterclockwise scale directions and inhibiting unidirectional fiber peristalsis. Therefore, the antistatic and anti-felting properties of Examples 1-5 were significantly better than those of Comparative Example 1. In Examples 1-5, as the length of the tertiary amine carbon chain increases, the lubricating film formed by the alkyl chain on the fiber surface tends to be denser, and the anti-felting performance gradually increases. Therefore, Example 5, which uses docosyldimethyl tertiary amine, has the best anti-felting performance. However, as the length of the carbon chain increases, the water solubility and hygroscopic capacity of the molecule decrease, the migration rate of the quaternary ammonium cation decreases, and the antistatic performance gradually decreases. Therefore, Example 1, which uses N,N-dimethyldodecyl tertiary amine, has the best antistatic performance.

[0055] Example 6: N,N-Dimethyldodecyl tertiary amine and docosyldimethyl tertiary amine were compounded and then quaternized. The product generated an asymmetric molecule with a short-chain alkyl group at one end and a long-chain alkyl group at the other end. The long-chain end has a strong interaction with the wool fiber, firmly anchoring the molecule to the fiber surface and forming a dense lubricating film. The short-chain end is arranged outward, with a high density and fast migration rate of quaternary ammonium cations, ensuring rapid leakage of static charge. The long-chain end compensates for the weak adhesion and poor lubrication of the short chain, while the short-chain end compensates for the slow conductivity of the long chain. The two form a structural complement on the same molecule, so the antistatic and anti-felting properties are simultaneously superior to either single component used alone, producing a synergistic effect. Example 7: N,N-Dimethyltetradecyl tertiary amine and N,N-Dimethylhexadecyl tertiary amine differ in carbon chain length by only two carbon atoms. Their water solubility, lubricity, and ion migration ability are highly similar, and their arrangement on the fiber surface is the same. After compounding, there is no functional complementarity, and the performance is only a simple sum of the two, so no synergistic effect is produced.

[0056] In Example 8, the ratio of N,N-dimethyldodecyl tertiary amine to docosyldimethyl tertiary amine, after conversion to a molar ratio, is closest to equimolar. The quaternized product exhibits the highest proportion of asymmetric molecules with one short chain and one long chain, resulting in the densest composite lubricating film on the fiber surface formed by the alternating arrangement of long and short chains. This achieves the optimal balance between conductivity and lubrication, thus yielding the best antistatic and anti-felt-shrinkage properties. In Example 6, the two tertiary amines were blended in equal masses. Due to the smaller molecular weight and higher molar number of N,N-dimethyldodecyl tertiary amine, the proportion of short-chain molecules in the product increased, while the proportion of asymmetric molecules was lower than in Example 8, resulting in slightly inferior overall performance. In Example 9, the proportion of docosyldimethyl tertiary amine was too high, leading to a product dominated by long-chain molecules and a further reduction in the proportion of asymmetric molecules. The conductivity at the short-chain end was significantly insufficient, resulting in a significant decrease in antistatic performance. Simultaneously, due to the lack of sufficient asymmetric molecules to exert a synergistic effect of anchoring and conductivity, the density of the composite lubricating film was also lower than in Example 8, consequently worsening the anti-felt-shrinkage performance. Therefore, the overall performance was inferior to Example 8.

Claims

1. An antistatic textile fabric, obtained by treating wool greige fabric with an antistatic finishing solution, characterized in that: The antistatic finishing liquid contains an antistatic agent for wool; the antistatic agent for wool is prepared by a ring-opening addition reaction of polyethylene glycol and epichlorohydrin under the action of a catalyst to obtain an intermediate, and the intermediate is then prepared by a quaternization reaction with an alkyl tertiary amine, wherein the alkyl tertiary amine is composed of N,N-dimethyldodecyl tertiary amine and docosyldimethyl tertiary amine in a mass ratio of 1:3 to 1:

2.

2. The antistatic textile fabric according to claim 1, characterized in that: In the antistatic finishing solution, the amount of antistatic agent for wool is 15-25 g / L, the amount of penetrant JFC is 0.5-1.5 g / L, and the pH value of the antistatic finishing solution is 5.0-6.

0.

3. The antistatic textile fabric according to claim 1, characterized in that: The wool fabric is woven from wool yarn with a linear density of 14-18 tex in a plain weave, with a warp density of 210-230 threads / 10cm and a weft density of 190-210 threads / 10cm.

4. The antistatic textile fabric according to claim 1, characterized in that: In the preparation of the antistatic agent for wool, the intermediate preparation steps are as follows: by weight, 80-120 parts of polyethylene glycol, 15-20 parts of epichlorohydrin and 0.3-0.8 parts of boron trifluoride diethyl ether complex catalyst are mixed evenly, nitrogen gas is introduced for protection, and the reaction is kept at 55-65℃ for 3-5 hours to obtain the intermediate.

5. The antistatic textile fabric according to claim 1, characterized in that: In the preparation of the antistatic agent for wool, the quaternization reaction step is as follows: 50-60 parts of alkyl tertiary amine and 35-45 parts of isopropanol are added to the intermediate, and the mixture is refluxed at 75-85℃ for 6-10 hours; after the reaction is completed, the isopropanol is removed by vacuum distillation to obtain the antistatic agent for wool.

6. A method for preparing an antistatic textile fabric as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. Spinning: Using wool fibers as raw materials, wool yarn is produced by sequentially going through the processes of wool mixing, carding, combing and ring spinning. S2, Weaving: Weaving wool yarn onto a loom to obtain wool fabric; S3. Pretreatment: The wool fabric is washed with a non-ionic detergent, and then rinsed, dehydrated and dried to obtain the fabric to be finished. S4. Antistatic finishing: The fabric to be finished is immersed in an antistatic finishing solution containing wool-grade antistatic agent and penetrant JFC, dipped and rolled once, dried, and then stretched and set to obtain an antistatic textile fabric.

7. The preparation method according to claim 6, characterized in that: In step S3, the nonionic detergent is fatty alcohol polyoxyethylene ether AEO-9, with a dosage of 1.5-2.5 g / L, a bath ratio of 1:15-25, a washing temperature of 35-45℃, and a washing time of 15-25 min.

8. The preparation method according to claim 7, characterized in that: In step S4, the roll residue rate is 70-80%, the drying temperature is 85-95℃, and the drying time is 2-4 min; the stretching and setting temperature is 95-105℃, and the machine speed is 25-35 m / min.

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