JPS593588B2 - Antistatic treatment agent for synthetic fibers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an antistatic treatment agent for synthetic fibers, and its purpose is to provide durable and excellent antistatic properties to synthetic fiber products by dipping them. An object of the present invention is to provide a processing agent that can be applied.

Fiber products made of synthetic fibers, such as knitted fabrics, woven fabrics, and other products, generally tend to accumulate a significant amount of static electricity, and this property often causes various problems in use.

Various methods have been proposed in the past to improve these problems, but the processing operations are generally complicated and, for example, the use of alkali neutralized primary alcohol sulfate esters and cationic polymer compounds has been proposed. Although methods using processing agents mainly composed of are known, their effects are not long-lasting or have an unfavorable effect on the properties of the product.
For example, it has drawbacks such as hardening of the texture, discoloration of dyed products, and decrease in fastness to abrasion - contamination of other fibers when washed.Also, it is accompanied by skin damage, so it is not practical. At present, there is actually very little that can be provided.
In view of the current situation, the inventors of the present invention have conducted extensive research and found that a simple immersion treatment process can be used, which does not have the above-mentioned unfavorable effects on the object to be treated, has excellent durability, and has excellent durability. The present invention was completed by discovering a processing agent that can provide a high degree of antistatic property.

That is, the gist of the present invention is that a polymer of α-olefin sulfate and β(methacryloxyethyl)-diethyl (or dimethyl) methylammonium methosulfate represented by the following formula (repeating unit n = 100 to 300) ) or a compound represented by the following formula 53) or IC) derived from acrylamide (all repeating units n = 100 to 300) (where X = halogen) as a nonionic activator. It is an antistatic agent that is characterized by being dispersed in a chemical or mechanically dispersed into fine particles, and can be used to easily improve the durability of textile materials, i.e., textile products made of synthetic polymer compounds. It is capable of imparting excellent antistatic properties to.

The α-olefin sulfate used in the present invention is a high-quality α-olefin that has recently become inexpensively produced by wax cracking and the Ziegler method due to advancements in petrochemistry. It uses pure ethylene as a raw material, and research has progressed rapidly in recent years, making it possible to produce it in large quantities.

In the formula, R is an alkyl group having 16 to 28 carbon atoms, and represents a single substance or a mixture thereof.

Secondary alkyl sulfate esters produced by direct sulfation of α-olefins with concentrated sulfuric acid have superior penetration power into synthetic fibers compared to natural higher alcohol sulfate esters and higher alcohol sulfate esters of synthetic alcohols. .

Due to this property, α-olefin sulfate ester
and cationic polymer compound (4) or 03) or (C)
The antistatic agent of the present invention, which uses a complex (complex compound), has the effect of promoting good penetration and adsorption into fibers. The cationic polymer compound (4) or (self) or (C) and the α-olefin sulfate (1) in the present invention form a complex compound at room temperature and are loosely bonded to the synthetic fiber. However, when the temperature exceeds 1000C, the cationic polymer compound diffuses into the fiber.

In particular, α-olefin 7-sulfate ester has a much better ability to penetrate into fibers than sulfate ester salts of natural alcohols and synthetic primary alcohols. This superiority can be judged by the excellent durability of the antistatic agent. It is presumed that this is because the α-olefin sulfate ester and the cationic polymer compound (4), (auto), or (C) are strongly bonded in the fiber and become insoluble.

This can be understood from the fact that the dried complex compound according to the present invention is insoluble even in cold water and hot water. Therefore, when treating with the treatment agent of the present invention, it is important to heat and dry the object to be treated at about 100° C. or higher after immersion. In the following examples for explaining specific representative examples of the present invention, examples are given of polyester fiber knitted fabrics, polyacrylonitrile fiber knitted fabrics, and polyacrylonitrile fiber blankets, but other textile products made of synthetic polymer substances are given. It goes without saying that it can be applied in the same way and that durable antistatic properties can be imparted.

In addition, in all examples, R has an alkyl group of Cl6
- Olefin sulfate salt was used.

Example 1 135 parts of a polymer of 10 parts of α-olefin sulfate and β(methacryloxyethyl)-diethylmethylammonium methosulfate [viscosity of a 25% aqueous solution measured by a Bruckfield rotational viscometer was 13.0
00 cps (20 C)], 10 parts of n-octyl alcohol, and 3 parts of turpentine oil, neutralized with sodium hydroxide, adjusted to a total volume of 100 parts with water, and milled into fine particles using a ball mill. After dispersing it in 1% and 2% aqueous solutions, the object to be treated (polyester fiber knitted fabric) was immersed at room temperature for 1 minute, squeezed with a mangle to a squeezing rate of 80%, pre-dried at 1000C for 10 minutes, and then
Heat treatment was performed at ℃ for 1 minute.

The knitted fabric obtained by this process exhibited good and durable antistatic properties as shown in Table 1. Also, compared to untreated material,
No change in texture or decrease in abrasion fastness was observed.
In addition, a polymer of β (methacryloxyethyl)-diethylmethylammonium methosulfate, which is a cationic polymer compound, and a polymer of this polymer and a higher alcohol (
The material to be treated (polyacrylonitrile fiber The knitted fabrics) were soaked for 1 minute at room temperature, squeezed with a mangle to a squeezing rate of 80%, dried at 100°C for 10 minutes, and the antistatic effects were compared and are shown in the following table.

This result shows that the antistatic effect of the antistatic agent (c) of the present invention is resistant to washing and has durability.

Example 2 After sulfuric acid esterification of α-olefin, the α-olefin sulfate 5 was immediately poured into saturated saline and salted out.
and 10 parts of a polymer of β (methacryloxyethyl) diethylmethylammonium methosulfate, 10 parts of 2-ethylhexyl alcohol, and 5 parts of turpentine oil, and after neutralizing with sodium hydroxide, the total amount was reduced to 10 parts with water.
After adjusting the amount to 0 parts and dispersing it into fine particles using a ball mill in the same manner as in Example 1, 1% and 2 parts of the
% aqueous solution to be treated (polyacrylonitrile fiber knitted fabric)
was immersed for 30 seconds at room temperature, squeezed with a mangle to a squeezing rate of 95%, and dried at 100°C for 10 minutes.

The obtained treated product had a good texture. Its antistatic properties are shown in Table 2. Example 3 10 parts of α-olefin sulfate ester and 12 parts of polymer (3) of acrylamide derivative [viscosity of 25% aqueous solution measured by a Bruckfield rotational viscometer was 11,000 c
ps (2'C)], 3 parts of a nonionic surfactant (Tween 20 [manufactured by Atlas Powder Co.]), and 5 parts of turpentine oil, neutralized with sodium hydroxide, and then reduced to 1 with water.
After adjusting the amount to 0.00 parts and dispersing it well in an agitator, the material to be treated (
A polyacrylonitrile fiber blanket) was immersed at room temperature for 1 minute, squeezed with a mangle to a squeezing rate of 75%, and dried at 100°C for 15 minutes.

The obtained treated product had a good texture as in Example 2,
No decrease in fastness to rubbing was observed. Polymer (B1
Each 2% aqueous solution of α-olefin sulfate ester salt (used in Example 1) was treated in the same manner. This antistatic property is shown in Table 3. Example 4 α-olefin sulfate 6
．． 4 parts and 11.6 parts of a polymer of an acrylamide derivative represented by formula (C) (halogen is Cl) [viscosity of a 25% aqueous solution measured by a Bruckfield rotational viscometer is 14.
000cps (20℃)], isopropyl alcohol 8
．． After neutralizing with sodium hydroxide, the total amount was adjusted to 100 parts with water, and then dispersed as in Example 1.

The object to be treated (polyacrylonitrile lyacrylic fiber fabric) was immersed in 1% and 2% aqueous solutions of this for 1 minute at room temperature,
It was squeezed with a mangle to a squeezing rate of 70% and dried at 100°C for 10 minutes. For comparison, 2% aqueous solutions of the polymer of formula (C) and the α-olefin sulfate salt compared in Example 1 were also treated in the same manner. Its antistatic effect is shown in Table 4.

The frictional charging voltage was measured using a Kyoto University Chemical Research Rotary Static Tester (manufactured by Koa Shokai) in an atmosphere with a room temperature of 20°C and a relative temperature of 65%, and the fabric to be rubbed was cotton fabric (Kinfu No. 3). This is the value using .

Claims (1)

[Claims] 1. Polymer of α-olefin sulfate ester and β (methacryloxyethyl)-diethyl (or dimethyl) methylammonium methosulfate represented by the following formula (A) ▲ A polymer whose mathematical formula, chemical formula, table, etc. Yes ▼ (A) (however, repeating unit n = 100 to 300) or a polymer derived from acrylamide and represented by the following formula (B) or (C) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (B ) (or nC
_2H_5SO^-_4) (However, repeating unit n = 100 to 300) ▲There are mathematical formulas, chemical formulas, tables, etc. ▼ (C) (However, repeating unit n = 100 to 300X = halogen) Complex (complex compound) A treatment agent for preventing static electricity on synthetic fibers, characterized in that it is dispersed with a nonionic activator or mechanically dispersed into fine particles.