JPH0978377A - Antistatic acrylic spun yarn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain antistatic acrylic spun yarn having a short half-life of its electric charge, a low frictional electric voltage and a good antistatic property, and also at a low cost. SOLUTION: This antistatic acrylic spun yarn having <=4000V frictional electric voltage, <=30sec half-life of its electric charge and <=7μC/m<2> amount of the electric charge, is obtained by blending 0.1-10wt.% blended fiber obtained by blending a core-sheath type electric conductive acrylic fiber consisting of an acrylonitrile-based polymer having (5/95)-(80/20) ratio of cross-sectional areas of the core part to the sheath part and containing 15-70vol.% electric conductive fine particles having >=10<-3> S/cm specific resistance in its core part, with an antistatic acrylic fiber containing >=1wt.% compound containing a polyether structure in the fiber in (1/50)-(1/1) ratio.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inexpensive antistatic acrylic spun yarn which has excellent conductivity, whiteness and yarn strength and can be widely used in the field of clothing such as sweaters.

[0002]

2. Description of the Related Art Generally, synthetic fibers are electrically insulating, and static electricity generated by contact or friction does not easily leak. As a result, various problems such as (1) clinging to clothes, (2) adhesion of dirt, (3) flammable gas caused by static electricity charged on clothes, ignition of dust, explosion, and (4) malfunction of electronic devices cause. Especially, with the spread of electronic devices such as personal computers, the obstacle (4) has been highlighted in recent years. In particular, acrylic fibers have a drawback that they are more likely to be charged with static electricity than other fibers, and are likely to cause the above-mentioned various problems. Therefore, acrylic fibers are required to have particularly high antistatic properties.

As a technique for imparting antistatic properties to spun yarn, it is preferable to mix electrically conductive fine particles such as carbon black or metal (compound) into a stock solution for spinning and blend a small amount of electrically conductive fiber with ordinary fiber. Since it is possible to impart antistatic property and does not impair the original properties of the fiber-processed product such as dyeability and texture, it is being used in the market.

However, when conductive fibers are mixed, the frictional electrification voltage shows a low value due to the neutralization of the electric charge by corona discharge with a small amount of the mixed cotton, but the small amount of the mixed cotton hardly causes the leakage of the electric charge and the charge half-life. Has a disadvantage of being longer than 120 seconds. In addition, conductive fibers obtained by mixing and spinning these conductive fine particles are generally expensive, and the manufacturing cost is significantly higher than the cost of ordinary spun yarns, limiting the field of use. is the current situation.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an inexpensive antistatic acrylic spun yarn having a short charge half-life, a low friction electrification voltage and a good antistatic property.

[0006]

According to the present invention, the cross-sectional area ratio of the core portion to the sheath portion is 5/95 to 80/20, and the core portion contains conductive fine particles having a specific resistance of 10 ^-3 S / cm or more. A core-sheath composite type conductive acrylic fiber made of an acrylonitrile-based polymer containing 15 to 70% by volume and an antistatic acrylic fiber containing 1% by weight or more of a compound containing a polyether structure in the fiber are Friction electrification voltage is 4000 V, which is obtained by mixing 0.1 to 10% by weight of mixed cotton mixed in a ratio of 50 to 1/1.
The charge half-life is 30 seconds or less, and the charge amount is 7 μC /
The above problem is solved by an antistatic acrylic spun yarn characterized by being m ² or less.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail below.
It is said that in order for the antistatic property to appear, it is necessary to have a sufficient capacitance with respect to the grounding body by connecting conductive fibers in the cloth (Electrostatic Handbook, First Edition P
818 (Static Society of Japan, published by Ohmsha Co., Ltd.), and it is generally said that the mechanism of antistatic property in conductive fiber blended cotton is neutralization of electric charge by corona discharge (Static Handbook, First Edition, P815, Static Society of Japan, Ohm). Issued by the company). In order to further generate corona discharge, the electrostatic field generated by friction is efficiently concentrated on the conductive fibers, and the conductive fibers are grounded or grounded in order to create a voltage difference between the formed high electric field portion and the conductive fibers. It is said that it is necessary to increase the capacitance with the grounding body (Static Handbook, 1st edition, P832, The Institute of Static Electricity, published by Ohmsha).

Concentration of an electric field is sufficient if a conductive fiber having an electric conductivity of 10 ^-6 S / cm or more is used, but in the case of clothing, it is often worn on other clothing and is a grounding body. Direct contact with the human body is rare, and it would be virtually impossible to ground the conductive fibers. for that reason,
It is necessary to increase the capacitance between the conductive fiber and the grounding body (body in this case), and it is important to form a chain of conductive fibers.

The present inventors evaluated the antistatic property by replacing a part of the conductive acrylic fiber having an electric conductivity of 10 ⁻⁶ S / cm or more with an antistatic acrylic fiber having a lower electric conductivity. As a result, it was surprisingly found that the same performance as that obtained by using only the conductive acrylic fiber was exhibited. Although this antistatic mechanism is not clear at present, it is not necessary to use only a fiber having a high conductivity such as a conductive acrylic fiber for the purpose of increasing the capacitance, and the conductivity is 10 ^-9. S / cm or more, 10 ^-6 S / cm
It is possible to partially substitute the antistatic acrylic fiber which is less than the above.

The acrylonitrile-based polymer constituting the core-sheath composite type conductive acrylic fiber used in the present invention is not particularly limited as long as it is an acrylonitrile-based polymer used in the production of ordinary acrylic fibers. Also,
The acrylonitrile-based polymer constituting the core component and the sheath component may have the same composition or different compositions, but the composition of the monomer must contain at least 50% by weight of acrylonitrile. Is. When the acrylonitrile composition ratio is less than 50% by weight in the monomer composition, the obtained fiber does not exhibit the original characteristics of the acrylic fiber and is not suitable for the purpose of the present invention.

Monomers copolymerizable with acrylonitrile include methyl acrylate, ethyl acrylate, isopropyl acrylate, n-butyl acrylate, acrylic acid 2
-Ethylhexyl, 2-hydroxyethyl acrylate,
Acrylic esters typified by hydroxypropyl acrylate, methyl methacrylate, ethyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, t-butyl methacrylate, n-hexyl methacrylate, methacrylic acid Methacrylic acid esters represented by cyclohexyl, lauryl methacrylate, 2-hydroxyethyl methacrylate, hydroxypropyl methacrylate, etc., and further acrylic acid, methacrylic acid, maleic acid, itaconic acid, acrylamide, N-methylol acrylamide, styrene, vinyl Examples thereof include toluene, vinyl acetate, vinyl chloride, vinylidene chloride, vinyl bromide, vinylidene bromide, vinyl fluoride and vinylidene fluoride.

Further, p-sulfophenyl methallyl ether, methallyl sulfonic acid, acrylonitrile polymer,
Copolymerization of allyl sulfonic acid, styrene sulfonic acid, 2-acrylamido-2-methylpropane sulfonic acid, and alkali salts thereof is preferable for improving dyeability.

In the present invention, the degree of polymerization of the acrylonitrile polymer is not particularly limited, but 0.1 g of the polymer is dissolved in 100 ml of dimethylformamide, and the specific viscosity measured at 25 ° C. is within the range of 0.1 to 0.2. Preferably there is.

The conductive fine particles contained in the core component are not particularly limited as long as the powdery specific resistance is 10 ^-3 S / cm or more, and iron, copper, aluminum, lead, tin, gold, silver, Metals typified by nickel and their oxides, sulfides, carbonyl salts, and conductive metal oxides such as ITO (indium tin oxide), ATO (antimony tin oxide) and zinc oxide, and these Examples thereof include barium sulfate, tin oxide, zinc oxide, and titanium oxide whose surface is coated with tin oxide or zinc oxide, and antimony oxide is added to tin oxide and aluminum is added to zinc oxide as an additive for increasing conductivity. A combination of metal oxides such as potassium, indium, germanium, and tin can be mentioned, and a carbon bra typified by furnace, channel, thermal, and acetylene black. -Based conductive material, conductive polymer compounds represented by polyacetylene, polypyrrole, polyaniline, etc., tetracyanoparaquinodimethane (TCN)
Examples thereof include organic conductive compounds represented by a complex of Q) and tetrathiafulvalene (TTF).

Further, the particle size of the conductive fine particles is preferably 3 μm or less in view of stability in the filtration and spinning steps of the stock solution, and from the viewpoint of improving conductivity, the aspect ratio is larger than that of the particles. Needles with a large diameter are preferred. The content of the conductive fine particles varies depending on the form and type of the fine particles and the required conductive performance.
~ 70% by volume, 15% for the core in the case of needles
70% by volume. When the content is less than the above range, the electroconductivity is insufficient, and when it exceeds the above range, spinning stability and drawability in the subsequent step are deteriorated and sufficient yarn quality cannot be obtained.

In the conductive acrylic fiber, in the fiber cross section, the ratio of the core portion to the sheath portion is core / sheath = 5/95% to 80.
/ 20% is necessary, and more preferably 1
It is 0/90% to 50/50%. When the proportion of the core portion is less than 5%, the conductive performance is not sufficient even if the conditions described later are satisfied. On the other hand, when it exceeds 80%, a complete core-sheath structure cannot be obtained and the core portion is exposed to the fiber surface in many portions, which is not preferable.

In the conductive acrylic fiber, it is important that the core is not exposed on the fiber surface. When exposed on the fiber surface like side-by-side type composite fiber, although generally high conductivity performance is obtained, abrasion of various guides and fiber fluff in each process from spinning to spinning,
Further, problems such as the dropping of the conductive fine particles from the fibers occur, and it becomes difficult to industrially and stably produce them.

The conductive acrylic fiber is obtained, for example, by the following manufacturing method. First, the spinning dope for forming the core is prepared so that the conductive fine particles are 10 to 30% by weight and the acrylonitrile polymer is 5 to 20% by weight. 1 to 1 ether ester
20% by weight, 20% by weight of the acrylonitrile-based polymer described above.
Separately prepared to be -40% by weight. The solvent used at this time is not particularly limited, but organic solvents such as dimethylformamide, dimethylacetamide, dimethylsulfoxide, and acetone are convenient.

Further, for the purpose of improving various performances of the final fiber, titanium dioxide or the like is added to a spinning solution for forming a sheath portion for improving whiteness, or a hydrophilic compound or a rubber-like material is added to a core portion for further improving conductivity. Ingredients can be added.

The two spinning stock solutions which respectively form the core and the sheath are spin-dried by a dry, wet or dry-wet spinning method using an ordinary core-sheath composite spinneret. The spun unstretched yarn is stretched 2 to 7 times in hot water at 70 ° C. or higher, is desolvated, and is then dried and relaxed by heat treatment to shrink by 5% or more. If the temperature of the hot water during drawing is less than 70 ° C, sufficient drawing cannot be performed, and the obtained fiber cannot have sufficient yarn quality. Similarly, if the draw ratio is less than 2 times, sufficient yarn quality cannot be obtained, and if it exceeds 7 times, yarn breakage frequently occurs and the core portion is cut off, which lowers the conductive performance, which is not preferable. The above-mentioned drying and relaxation heat treatment can be carried out individually or in combination with relaxation methods such as drying and annealing by a heat roll or a net process, relaxation of a hot plate, and relaxation of steam, which are generally used for producing acrylic fibers. The shrinkage ratio in the relaxation heat treatment is 5% or more, preferably 10% or more in order to secure good dyeability or yarn quality required for spinning and knitting.

The antistatic acrylic fiber in the present invention must be made of a mixture of an acrylonitrile polymer and a compound having a polyether structure. Examples of the compound containing a polyether structure include a polyfunctional polyether ester, a random, block and graft polymer of a monomer containing a polyether structure and acrylonitrile.

In the present invention, it is necessary that the content of the compound having a polyether structure in all the fibers is 1% by weight or more. If the content is less than 1% by weight, the charge half-life will not be sufficiently short.

The polyfunctional polyether ester may be any one, for example, the formula (1) or the formula (2).

[0024]

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[0025]

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Those obtained by polycondensation of the block-type polyether represented by and an aromatic dicarboxylic acid or an aromatic dicarboxylic acid ester are used. The average molecular weight is preferably 5,000 to 100,000, and 10,000 to 5
0000 is more preferable. When the average molecular weight is less than 5,000, the solubility in water is increased, the dye bleaching, etc., and further, it easily comes off during washing, and it is impossible to achieve sufficiently permanent attenuating property, while the average molecular weight is 100,000. Crossing,
When preparing a spinning dope, the solubility in a solvent decreases, which is not preferable.

Examples of the aromatic dicarboxylic acid include phthalic acid, terephthalic acid, isophthalic acid and the like.
Further, examples of the aromatic dicarboxylic acid ester include dimethyl terephthalate, diethyl terephthalate, dibutyl terephthalate, bis (2-hydroxyethyl) terephthalate, dimethyl isophthalate, diethyl isophthalate, dibutyl isophthalate and the like.

Any monomer may be used as the monomer having a polyether structure, for example, the compound represented by the formula (3)

[0029]

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Polyalkylene glycol (meth) acrylate, alkoxypolyalkylene glycol (meth) acrylate, etc. represented by are used. These may be used alone or in combination of two or more depending on the purpose.

The acrylonitrile-based polymer constituting the antistatic acrylic fiber is not particularly limited as in the case of the acrylonitrile-based polymer constituting the conductive acrylic fiber. Further, in order to obtain excellent antistatic performance, it is desirable that the compound having a polyether structure in the antistatic fiber be arranged in a line in the fiber direction in the acrylonitrile polymer. The diameter of the portion where the polyfunctional polyether ester concentration is high is 0.
It is preferable to arrange them in a size of 1 to 5 μm and a length of 1 μm or more. If the diameter is less than 0.1 or the length is less than 1 μm, the antistatic performance is not sufficient, and if the diameter exceeds 5 μm, the spinnability is increased. descend. This streak-like formation is due to the miscibility between the types of acrylonitrile-based polymer and the polyfunctional polyether ester, the compatibility or the method of mixing both components during the preparation of the dope,
Furthermore, although it is affected by the dope temperature and the nozzle hole diameter,
The condition is not particularly limited as long as it satisfies the above-mentioned striped arrangement condition.

In the present invention, the stock solution for spinning the antistatic acrylic fiber is prepared so that the polymer concentration is 20 to 40% by weight. Further, a phenol-based, phosphite-based, or thioether-based antioxidant to prevent oxidative deterioration of the polyfunctional polyether ester, and a hindered amine-based or henzotriazole-based UV absorber to improve light stability can be added. The solvent used at this time is not particularly limited, but for example, organic solvents such as dimethylformamide, dimethylacetamide, dimethylsulfoxide and acetone are convenient.

In the present invention, the antistatic acrylic fiber may be in any form, including core-sheath composite type, side-by-side composite type, layered composite type, kneading type, and the like. The dry method, dry-wet spinning method and the like are not particularly limited.

[0034]

The present invention will be described more specifically with reference to the following examples. In the examples, the measurement of the electric conductivity of the fiber and the evaluation of the antistatic performance were performed by the following methods.

(Measurement of Conductivity of Fiber) Single fibers were taken out from the fiber bundle, accurately separated by 1 cm, and bonded to a metal terminal with a silver paste (Doutite manufactured by Fujikura Kasei Co., Ltd.). At a temperature of 20 ° C and a relative humidity of 40RH%, a DC voltage of 1000V is applied between these terminals, and the resistance value R between the terminals is R.
(Ω) was measured with a super insulation meter (SM-8210 Toa Denpa Kogyo Co., Ltd.). From this conductivity σ (S / cm)
Was calculated by the following formula. σ = 1 / (1.11 × 10 ⁻⁶ × R × (d / ρ) ^1/2 ), where d is the fineness, and ρ is the specific gravity of the fiber.

(Evaluation of antistatic performance) 300 g of spun yarn
After knitting on the knitted fabric (10 cm × 20 cm □), knitted fabric 1
To 00 parts, immerse in 5000 parts of a scouring liquid (score roll concentration 1 gram / liter aqueous solution), perform an oil removal process at 70 ° C. for 20 minutes, and then to 100 parts of knitted fabric,
Staining solution [BLUE-KGLH (Dye manufactured by Hodogaya Chemical Co., Ltd.)
0.5 part, acetic acid 2 parts, sodium acetate 0.5 part] It is immersed in 5000 parts, heated to 100 ° C. in 30 minutes, heated at 100 ° C. for 60 minutes, taken out of the knitted fabric and air-dried. It was an electrical sample.

In the case of permanent antistatic evaluation, 50000 parts of washing liquid (detergent: aqueous solution of Kao bio-beads 1 g / l solution) per 100 parts of knitted fabric using a fully automatic washing machine for home use. And was washed at 40 ° C. The washed knitted fabric was dried at 70 ° C. for 60 minutes and repeatedly washed 10 times to obtain an antistatic evaluation sample. The obtained evaluation sample was cooled in a silica gel-sealed desiccator,
2 in a constant temperature and humidity atmosphere (temperature 20 ° C, relative humidity 40%)
Humidified for 4 hours. The charge half-life is measured with a static Honest meter (manufactured by Shishido Trading Co., Ltd.), and the friction electrification voltage and the amount of electrified charge are measured with the Kyoto University Chemical Research Rotary Static Tester (manufactured by Koa Shosha Co., Ltd.) according to JIS-L.
The antistatic performance was evaluated based on -1094-1980 (reference method for triboelectric charge of woven and knitted materials).

Static Honest Meter Usage conditions Applied voltage 1000 V Application time 30 seconds Sample rotation speed 1000 rpm Rotary static tester Usage conditions Drum rotation speed 400 rpm Friction time 60 seconds Friction cloth Cotton Measurement conditions for charged amount of friction Friction cloth 10 times Friction cloth Nylon, Acrylic knit fabric Antistatic agent (compound (C)) treatment conditions Padding 1nip-1nip Squeezing rate 40% Pre-drying 80 ℃ × 30 minutes Heat set 120 ℃ × 30 seconds

(Examples 1 to 9 and Comparative Examples 1 to 5) Acrylonitrile polymer composed of 93.5% by weight of acrylonitrile, 6.0% by weight of methyl acrylate and 0.5% by weight of sodium methallylsulfonate (comparative ratio). A viscosity of 0.16) was dissolved in dimethylformamide to obtain a spinning dope (A) having a polymer concentration of 30% by weight.

Further, the spinning stock solution (with various addition amounts of granular conductive titanium oxide (ET-500W manufactured by Ishihara Sangyo Co., Ltd.) having a particle diameter of 0.2 to 0.3 μ and a powder resistance value of 2 to 5 S / cm was changed. Disperse in 100 parts by weight of a spinning dope having the same composition as A),
A spinning dope (B) was prepared. (B) was used as the spinning dope for forming the core, and (A) was used as the spinning dope for forming the sheath.

After heating the spinning dope separately to 130 ° C.,
It was discharged into an inert gas at 230 ° C. using a core-sheath spinneret having 400 holes and a hole diameter of 0.2 mmφ. Various discharge ratios of the spinning dope for forming the core and the sheath were changed. The unstretched yarn obtained is then 3.75 in hot water at 100 ° C.
The film was stretched twice and washed in hot water at 95 ° C. The obtained fiber bundle has a relative humidity of 40% and a temperature of 150 without tension.
Drying at 37 ° C., relaxation treatment, and shrinking by 20% gave conductive fibers (D). The fineness of the obtained fiber was 3 denier. The conductivity was evaluated and is shown in Table 1.

[0042]

[Table 1]

Polyfunctional polyether ester (in the formula 1, a block type polyether ester of m = n = 73 and dimethyl terephthalate are condensed with an average molecular weight of 25).
000) is variously changed and dispersed in 100 parts by weight of a spinning dope having the same composition as the spinning dope (A) to prepare a spinning dope (C).
Was prepared. (C) was used as the spinning dope for forming the core, and (A) was used as the spinning dope for forming the sheath.

After heating the spinning dope separately to 130 ° C.,
It was discharged into an inert gas at 230 ° C. using a core-sheath spinneret having 400 holes and a hole diameter of 0.2 mmφ. Various discharge ratios of the spinning dope for forming the core and the sheath were changed. The unstretched yarn obtained is then 3.75 in hot water at 100 ° C.
The film was stretched twice and washed in hot water at 95 ° C. The obtained fiber bundle has a relative humidity of 40% and a temperature of 150 without tension.
Drying at 37 ° C., relaxation treatment, and shrinking by 20% gave an antistatic fiber (S). The fineness of the obtained fiber was 3 denier. The conductivity was evaluated and is shown in Table 2.

[0045]

[Table 2]

Polyfunctional polyether ester (in the formula 1, m = n = 73 block type polyether ester and dimethyl terephthalate are condensed, average molecular weight 25
000) is variously added and dispersed in 100 parts by weight of a spinning dope having the same composition as that of the spinning dope (A) to prepare a spinning dope (E).
Was prepared.

After heating the spinning dope (E) to 130 ° C.,
23 using a spinneret with 900 holes and 0.2 mm diameter
It was discharged into an inert gas at 0 ° C. The undrawn yarn thus obtained was subsequently drawn 3.75 times in hot water of 100 ° C. and further washed in hot water of 95 ° C. The obtained fiber bundle was dried at 40% relative humidity and a temperature of 150 ° C. under a non-tensed state, subjected to a relaxation treatment, and contracted by 20% to obtain an antistatic fiber (S). The fineness of the obtained fiber was 3 denier. The conductivity was evaluated and is shown in Table 3.

[0048]

[Table 3]

An acrylonitrile polymer (specific viscosity 0.16) consisting of 93.5% by weight of acrylonitrile, 6.0% by weight of methyl acrylate, and 0.5% by weight of sodium methallyl sulfonate, and lauroxy polyethylene glycol (formula) 3 in which R ₁ = H, R ₂ = C ₁₂ H ₂₅ , n = 30)
20.0 wt%, acrylonitrile 73.0 wt%, vinyl acetate 7.0 wt% with an antistatic acrylonitrile-based polymer (specific viscosity 0.18) by changing the mixing ratio variously dissolved in dimethylformamide A spinning solution (F) having a polymer concentration of 30% by weight was obtained.

After heating the spinning dope (F) to 130 ° C.,
23 using a spinneret with 900 holes and 0.2 mm diameter
It was discharged into an inert gas at 0 ° C. The undrawn yarn thus obtained was subsequently drawn 3.75 times in hot water of 100 ° C. and further washed in hot water of 95 ° C. The obtained fiber bundle was dried under a relative tension of 40% and a temperature of 150 ° C. under a non-tensioned state, relaxed, and contracted by 25% to obtain an antistatic fiber (S). The fineness of the obtained fiber was 3 denier. The results are shown in Table 4.

[0051]

[Table 4] Mixing ratio of conductive acrylic fiber (D) 3d × 51 mm and antistatic acrylic fiber (S) 3d × 51 mm, and mixed cotton (K) and ordinary acrylic fiber (L) 2d × 51 m
By changing the mixing ratio with m variously to form a 1/52 meter count spun yarn, knitting a plain knitted fabric with 2 pieces of 18 gauge, evaluating the friction electrification voltage and the amount of electrified charge, and the results are shown. Table 5
It was shown to.

[0052]

[Table 5]

[0053]

According to the present invention, by mixing a conductive acrylic fiber with an inexpensive antistatic acrylic fiber, a short charge half-life, a low friction electrification voltage, and a good antistatic property are obtained. It is possible to inexpensively obtain an antistatic acrylic spun yarn having

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akemi Kitani 20-1 Miyukicho, Otake City, Hiroshima Prefecture Mitsubishi Rayon Co., Ltd. Otake Office

Claims (4)

[Claims] 1. A cross-sectional area ratio of the core portion and the sheath portion is 5/95 to 80.
/ 20, the core portion is a core-sheath composite type conductive acrylic fiber made of an acrylonitrile polymer containing 15 to 70% by volume of conductive fine particles having a specific resistance of 10 ⁻³ S / cm or more,
0.1 to 10% by weight of mixed cotton mixed with antistatic acrylic fiber containing 1% by weight or more of a compound containing a polyether structure in the fiber, at a ratio of 1/50 to 1/1, An antistatic acrylic spun yarn having a frictional electrification voltage of 4000 V or less, a charge half-life of 30 seconds or less, and a charge amount of 7 μC / m ² or less. 2. The antistatic acrylic spun yarn according to claim 1, wherein the antistatic acrylic fiber is a core-sheath composite fiber having a compound containing a polyether structure in the core. 3. The antistatic acrylic spun yarn according to claim 1, wherein the compound having a polyether structure is a polyfunctional polyether ester. 4. The antistatic acrylic spun yarn according to claim 1, wherein the compound having a polyether structure is a copolymer with acrylonitrile.