JPH05287676A - Antistatic treatment of textile product - Google Patents

Abstract

PURPOSE:To provide a method for the antistatic treatment of a textile product to give a treated product having excellent durability, exhibiting high antistatic performance even by using in combination with a water-repellent, causing extremely small change of feeling and free from the lowering of fastness. CONSTITUTION:A synthetic fiber structure is subjected to a low-temperature plasma treatment and coated with a mixture of a guanidine derivative with at least one kind of surfactant selected from nonionic surfactant and amphoteric surfactant. The vacuum degree of the plasma treatment is preferably 0.01-10 Torr, more preferably 0.05-3 Torr and especially 0.1-2 Torr and the discharge power is 0.4-16W/cm<2> (area of discharge electrode). The guanidine derivative is preferably guanidine hydrochloride to achieve high treating effect. The nonionic surfactant is e.g. polyethylene glycol-type nonionic surfactant and polyhydric alcohol-type nonionic surfactant and the amphoteric surfactant is e.g. imidazoline-type quaternary salt, alanine-type quaternary salt and polyalkylpolyamine-type amphoteric surfactant.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antistatic method for textile products having excellent durability.

[0002]

2. Description of the Related Art Synthetic fibers are widely used for clothing and industry due to their excellent physical properties. However, since synthetic fibers are hydrophobic fibers, they have the drawback of being inferior in antistatic performance. As a result, it causes an electric shock due to static electricity when sewing a textile product, clings to the body when wearing clothes, or a discharge phenomenon such as a crackle when detaching. In order to improve such drawbacks,
Treatment agents consisting of cationic, anionic, nonionic and amphoteric surfactants and hydrophilic polymer surfactants are widely used, but their durability in washing etc. is insufficient, and the effect in low humidity Is insufficient, the robustness is reduced, the antistatic performance is insufficient when used in combination with a fluorine-based or silicone-based water repellent, the water repellency is reduced, or the texture is slim. At present, there are various problems such as rough curing.

[0003]

DISCLOSURE OF THE INVENTION The present invention has excellent durability, exhibits a high degree of antistatic property even when used in combination with a water repellent, has a very small change in texture, and has no deterioration in fastness. It is intended to provide a prevention method.

[0004]

The present invention has the following constitution in order to solve such problems.

That is, the antistatic method for textiles of the present invention comprises a guanidine derivative and at least one surface active agent selected from nonionic surface active agents and amphoteric surface active agents after the synthetic fiber structure is subjected to low temperature plasma treatment. It is characterized in that a mixture with an agent is applied.

[0006]

The present invention provides an antistatic treatment method which does not impair the texture and fastness of a textile product, has excellent durability by washing and the like, and has excellent performance even when used in combination with a fluorine-based or silicone-based water repellent. As a result of diligently studying, after the low-temperature plasma treatment of the textile product to be treated, the guanidine derivative and a treatment agent containing a mixture of one or both of a nonionic surfactant and an amphoteric surfactant It was completed by investigating that the above-mentioned object is achieved.

The textile products of the present invention include synthetic fibers such as polyester, nylon, polyester ether, polyacrylonitrile and polyolefin, semi-synthetic fibers such as triacetate and diacetate, and natural fibers such as cotton, wool and silk. Examples include knitted and woven fabrics, non-woven fabrics, felts, strings (ropes), and yarns that are made by mixing and spinning fibers.

The plasma treatment of the present invention is generated by applying a high voltage in a decompression container in which a specific gas is sealed, and such discharge is caused by various types such as spark discharge, corona discharge discharge and glow discharge. There are some types, but glow discharge is particularly preferable because of uniform discharge and excellent activation effect.

As the discharge frequency, high frequency, low frequency, microwave can be used, and direct current can also be used.

As the above-mentioned specific gas (atmosphere gas), a non-polymerizable (inert) gas is preferable, for example, Ar,
Air, He, CO, carbon dioxide, oxygen, hydrogen, steam,
Ammonia and the like are exemplified, and these can be used alone or in combination of two or more kinds. Polymerizable gases such as ethylene monomer and perfluoropropylene monomer may be used within a range that does not impair the object of the present invention.

The degree of vacuum in the plasma treatment is preferably 0.
01 to 10 Torr, more preferably 0.05 to 3 Torr,
Particularly preferably, it is 0.1 to 2 Torr. If it is less than 0.01 Torr, the reaction may take a long time because the number of energetic particles for activating the fiber surface is small, and 10
If it exceeds Torr, the discharge may become unstable, or the mean free path distance of energetic particles may become long, which may lower the reaction efficiency.

The discharge power of the low temperature plasma is 0.4 to 16
W / cm ² (area of discharge electrode). If it is lower than 0.4 W / cm ² , the reaction takes a long time, and if it exceeds 16 W / cm ² , discharge becomes unstable.

As such a plasma processing apparatus, there are an internal electrode system in which an electrode is installed in a vacuum container and an external electrode system in which an electrode is installed outside the vacuum container. Either system can be used in the present invention. .

In the case of the internal electrode system, the shape of the electrode can be used in combination with a flat plate shape or a rod shape according to the purpose, but as the discharge electrode, a dielectric such as glass, ceramic or rubber can be used on the surface of the metal rod. It is preferable to use a body-covered one, and it is preferable to use a metal, for example, a stainless steel plate or a drum-shaped one as the ground electrode, from the viewpoint of uniformity of discharge and treatment efficiency.

The distance between the electrodes is preferably 0.5 to 10
mm, and more preferably 2 to 6 cm
There is no spot in the discharge, and it is possible to perform uniform treatment. The electrodes are preferably cooled with water or the like, if necessary. Further, the low temperature plasma treatment time can be performed in the range of several seconds to several minutes.

As the guanidine derivative of the present invention, for example, guanidine hydrochloride, guanidine nitrate, guanidine acetate, guanidine carbonate and the like can be used, but guanidine hydrochloride is preferred in terms of its effect.

As the nonionic surfactant in the present invention, for example, a polyethylene glycol type nonionic surfactant, a polyhydric alcohol type nonionic surfactant, etc. can be used, and the amphoteric surfactant can be, for example, imidazoline. Although amphoteric surfactants such as type quaternary salts, alanine type quaternary salts, and polyalkylpolyamines can be used, they are described in "Introduction to New Surfactants" (Takehiko Hashimoto, Sanyo Chemical Industry Co., Ltd.). Conventional surfactants can be used.

The present invention provides a guanidine derivative with at least one surfactant selected from nonionic surfactants and amphoteric surfactants, that is, nonionic surfactants or amphoteric surfactants or nonionic surfactants and amphoteric surfactants. Both of the surfactants are mixed and used, and the mixing ratio thereof is preferably 0.01 to 1.0, more preferably 0.1 to 1.0, by weight of the guanidine derivative 1.
A mixture of 0.8, particularly preferably 0.2 to 0.6 is preferable. When the amount of the surfactant is less than 0.01, the antistatic performance becomes insufficient, and when the amount exceeds 1, the durability tends to decrease and the fastness of the dyed product may decrease.
Anionic or cationic surfactants, rust preventives, and texture modifiers such as waxes can be added to such a mixture within a range that does not impair the object of the present invention. Further, such a mixture can be diluted with water or a solvent before use.

When such a mixture is applied to a textile product whose surface is activated by low temperature plasma treatment,
A uniform resin layer is formed on the fiber surface, the adhesion (fixation) with the fiber surface is improved, and excellent initial performance and durability performance are exhibited. When colloidal silica is mixed with such a mixture (antistatic agent), the durability is further improved.

The colloidal silica referred to herein is preferably one which is uniformly dispersed in water with a particle size of 0.5 to 100 mμ, preferably 10 to 50 mμ, which is convenient for use and can be used as an antistatic agent. The mixing amount of is preferably 0.1 to 2, more preferably 0.3 to 1 with respect to the guanidine derivative 1. The colloidal silica effectively acts to improve the antistatic effect and prevent deterioration in texture, misalignment and the like.

Further, when a fluorine water repellent and / or a silicone water repellent is mixed with the above mixture and used, excellent antistatic performance can be exhibited without deteriorating the water repellent performance.

The method of applying the mixture (antistatic agent) to the textile product is not particularly limited, and a padding method, a spray method, a dipping method or the like can be adopted.

The amount of such a mixture applied is 0.01 to 4%, preferably 0.1 to 4% in terms of solid content with respect to the fiber weight of the fiber product.
1%.

Since such a mixture effectively acts on the surface of the fiber which has been subjected to the low temperature plasma treatment, it has the advantage that the fastness of the dyed product is not deteriorated because a high modification performance can be obtained by applying a small amount.

[0025]

EXAMPLES The present invention will now be described in detail with reference to examples, but the present invention is not limited thereto.

The performance evaluation shown in Examples and Comparative Examples was carried out by the following method.

(Antistatic property) Friction electrification voltage was measured based on JIS L 1094 at a temperature of 20 ° C. and a humidity of 30% RH.

(Water repellency) The water repellency was measured by the spray method according to JIS L 1094.

(Rubbing fastness) The degree of contamination during dry and wet was measured based on JIS L 0849.

(Washing Conditions for Durability Evaluation) A 0.2% slightly alkaline synthetic detergent (specified in JIS K 337) at 40 ± 2 ° C. is put into an automatic reversal spiral electric washing machine (VH1150 manufactured by Toshiba Corporation). , Bath ratio 1:50, 10 under strong conditions
Washing for 5 minutes, then draining, and washing for 5 minutes were performed once, and this was repeated 10 times and then air-dried.

Examples 1 to 3 and Comparative Examples 1 to 8 Tropical woven fabric made of polyester processed yarn (manufactured by Toray Industries, Inc. (both warp yarn and weft yarn are 100D-24F).
Was scoured and set by a conventional method.

The fabric was plasma treated under the following conditions,
Next, resin processing was performed and the performance was evaluated.
Shown in.

(Plasma treatment) Apparatus: Internal electrode method Discharge frequency: 350 KHz Discharge voltage: 10 W / cm ² Gas type and flow rate: Air 200 ml / min Vacuum degree: 0.8 Torr Treatment time: 60 seconds (Resin processing) (B) Guanidine hydrochloride 5 g / l Polyethylene glycol 1000 (nonion) 1 g / l (b) Guanidine hydrochloride 5 g / l Amphoteric surfactant 1 g / l

[Chemical 1] (C) Guanidine hydrochloride 5 g / l (a) Nonion 0.6 g / l (b) Amphoteric 0.4 g / l (d) Guanidine hydrochloride 5 g / l Anionic surfactant 1 g / l

[Chemical 2] (E) Guanidine hydrochloride 5 g / l Cationic surfactant 1 g / l

[Chemical 3] (F) Guanidine hydrochloride 10 g / l (to) Polyethylene glycol 1000 10 g / l (h) Mieulone AS107 (cation) 20 g / l (ri) Mieulone AC (anion) 20 g / l (n) Mieulone AS230 (nonion ) 20 g / l Here, (h), (ri), and (nu) are antistatic agents manufactured by Miyoshi Yushi Co., Ltd.

[0034]

[Table 1] It can be seen from Table 1 that the antistatic treatment according to the present invention has excellent durability. Examples 4 to 12 and Comparative Examples 9 to 15 Plain woven fabric (both warp and weft 100D-24F) made of polyester processed yarn (manufactured by Toray Industries, Inc.) was scoured and set by a conventional method, and then Dianix Black BG-FS.
(Manufactured by Mitsubishi Kasei) at a concentration of 12% owf, a bath ratio of 1:30,
After dyeing at a temperature of 130 ° C. for 60 minutes, reduction washing, washing with water and setting were carried out by a conventional method to obtain a black woven fabric (longitudinal density: 100 yarns / inch, weft density: 85 yarns / inch).

The results of evaluating the performance of the woven fabric treated under the following conditions are summarized in Table 2.

(Plasma treatment) Apparatus: internal electrode method Discharge frequency: 30 KHz Discharge power: 8 W / cm ² Gas species and flow rate: Nitrogen 100 ml / min Vacuum degree: 0.6 Torr Treatment time: 30 seconds (antistatic processed resin) ( A) Guanidine hydrochloride 4 to 10 g / l (B) Polyethylene glycol average molecular weight 1000 0.04 to 12 g / l (C) Snow Tech O 10 g / l (Colloidal silica: 40 to 50 mμ: Nissan Chemical Co., Ltd.) (A) , (B) and (C) were prepared, the woven fabric was dipped, squeezed with a mangle to make the pickup 90%, and dried at a temperature of 130 ° C.

[0037]

[Table 2] It can be seen from Table 2 that those of the present invention can exhibit excellent antistatic performance with a small amount of resin, and therefore can be treated without lowering the fastness.

Example 13 and Comparative Example 16 Cassidos woven fabric (two warp yarns 75D-24F aligned with each other, weft yarn 100D-) made of polyester processed yarn (manufactured by Toray Industries, Inc.)
2 sets of 24F) are scoured and set by the usual method,
DANIX Navy Blue ER-FS (Mitsubishi Kasei) at a concentration of 4% owf, bath ratio 1:30, temperature 135
Dyeing was carried out at a temperature of 45 minutes for 45 minutes, and after that, reduction washing, water washing and setting were carried out by a conventional method to obtain a blue woven fabric.

The results of evaluating the performance of the woven fabric by the following treatments are summarized in Table 3.

(Plasma treatment) Apparatus: internal electrode method Discharge frequency: 110 KHz Discharge voltage: 12 W / cm ² Gas type and flow rate: Ar 200 ml / min Vacuum degree: 0.4 Torr Treatment time: 60 seconds (Resin processing) Paraguard 803 40 g / l (Fluorine-based water repellent manufactured by Ohara Paradium Co., Ltd.) Guanidine hydrochloride 5g / l Polyethylene glycol 600 2g / l The resin solution is pad-nipped to pick up 100%
After that, it was dried at 120 ° C. and heat-treated at 180 ° C.

[0041]

[Table 3] According to the present invention, without deteriorating the water-repellent performance,
It had excellent antistatic performance.

[0042]

According to the present invention, an antistatic treatment method having excellent durability can be provided without deteriorating the functions such as fastness and water repellency.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location D06M 15/643 7199-3B D06M 11/12 15/643

Claims (5)

[Claims] 1. A method of applying a mixture of a guanidine derivative and at least one surfactant selected from nonionic surfactants and amphoteric surfactants after low-temperature plasma treatment of a synthetic fiber structure. Antistatic method for textile products. 2. The antistatic method for a textile product according to claim 1, wherein the mixing ratio of the guanidine derivative and the surfactant is 0.01 to 1.0 of the guanidine derivative and the surfactant. 3. The antistatic method for a textile product according to claim 1, wherein the mixture contains colloidal silica. 4. The antistatic method for a textile product according to claim 1, wherein the mixture contains at least one selected from a fluorine-based water repellent and a silicone-based water repellent. 5. The low-temperature plasma treatment uses a discharge power of 0.4 to
The method for preventing static electricity of a textile product according to claim 1, wherein the method is performed within a range of 16 W / cm ² (area of discharge electrode).