JPS6024229B2 - Dyeing aid for hydrophobic synthetic fiber materials - Google Patents

Description

[Detailed description of the invention] The present invention relates to a dyeing aid for hydrophobic synthetic fiber materials.

More specifically, the present invention provides dyed products with an efficient uniform hue and excellent quality when dyeing fiber materials made of hydrophobic synthetic fibers or mixed fibers containing hydrophobic synthetic fibers with disperse dyes or azoic dyes. Beams that can be obtained
Regarding color aids. When dyeing hydrophobic synthetic fiber materials such as polyester, generally, high-temperature, high-pressure dyeing using disperse dyes or azoic dyes at a temperature of 110 to 1400 °C under pressure above atmospheric pressure or carrier dyeing at a temperature of around 100 °C is carried out. It is being done. Recently, in high-temperature, high-pressure dyeing of all polyester products, low-liquid ratio rapid dyeing has been put into practical use, which shortens the dyeing time and reduces the amount of beam liquid, with the aim of streamlining the dyeing process and saving energy. Low bath ratio rapid dyeing increases the flow rate of the dye solution and the movement speed of the dyed material,
In addition, the amount of liquid applied to the object to be dyed is reduced, the temperature is raised quickly, and dyeing can be carried out efficiently in a short period of time. Therefore, compared to conventional dyeing, which uses a high-yield ratio and heats up at a slow rate to allow sufficient cooking time, the dye becomes a highly concentrated liquid due to the low-yield ratio, and rapid heating occurs due to the high-yield ratio. Further, the impact from the pump is applied to promote taring of the dye. On the other hand, the oligomers eluted from the fibers become a highly concentrated liquid and affect the formation of dye tar. If dyeing is carried out in such a beam condition, specks may appear on the surface of the dyed product, and staining of the dyeing machine may cause problems such as color differences between batches and contamination during repeated dyeing. To solve these problems, dispersion leveling agents are generally used to efficiently obtain uniform, high-quality dyed products. Polyoxyethylene alkyl aryethers and their sulfate ester salts, polyoxyethylene higher fatty acid esters, and the like are used.

However, such dispersion leveling agents are no longer satisfactory under such harsh dyeing conditions, and a new dispersion leveling agent with higher dispersibility, uniformity and low foaming properties is desired. There is. The present inventors have arrived at the present invention as a result of intensive research to satisfy such demands.

According to the present invention, a novel dyeing aid for hydrophobic synthetic fiber materials is provided, and this dyeing aid has at least one compound represented by the following general formula as a main component.

In the above formula, X3,
, and R2 each independently represent a hydrogen atom or an alkyl group having 1 or 2 carbon atoms, f, g, h, i, j, k, 1
, m, n, o, p and q each independently represent an integer of 1 to 100, and x represents an integer of 2 to 6.

The compound according to the present invention can be obtained by adding styrene oxide to a polyoxyalkylene glycol of an alkyl diamine or a polyoxyalkylene glycol adduct of an alkylene diamine, or by sulfating this with a suitable sulfating agent. It is a compound obtained by neutralizing the obtained sulfate with a suitable neutralizing agent.

Addition of styrene oxide to these polyoxyalkylene derivatives can be easily carried out by a conventional method by adding an alkali catalyst under normal pressure or under pressure and carrying out a high temperature reaction. In addition, sulfation of the obtained compound can be carried out by a conventional method, for example, by reacting with sulfuric acid, chlorosulfonic acid, fuming sulfuric acid, sulfamic acid, etc. at room temperature or under heating. Any sulfate can be obtained. The beam coloring aid of the present invention may contain known beam coloring aids, dyeing carrier compositions, and the like.

When using the auxiliary agent of the present invention, it is necessary to add 30 to 1 % of this auxiliary agent to the weight of the dye in Liang Yuan containing disperse dye and acid.
Preferably, an amount of 5% by weight is added. Suitable dyes include disperse dyes and azoic dyes.
Suitable hydrophobic synthetic fibers include synthetic fibers such as polyester and acetate. The beam coloring auxiliary of the present invention has a uniform beam strength that is higher than that of a normal/ionic beam coloring auxiliary and a dispersibility performance that is equal to or better than that of a normal anionic beam coloring auxiliary. Particularly in recent years, cheap azo disperse dyes have been increasingly used due to the rise in dye prices, but due to their structure, they tend to diffuse internally and cause dark spots (flickering or silty dyeing that looks like streaks on the fiber surface). There is a tendency for beams to rise unsteadily, and there is a demand for dyeing aids that can overcome this problem.
The auxiliary agent of the present invention has the characteristic that the addition of styrene oxide gives it an appropriate covering power, and it is possible to obtain excellent dyeing results even when dyeing with an azo dye. In addition, the sulfate group-containing auxiliary agent of the present invention has a particularly low foaming property compared to conventional anionic beam coloring auxiliaries because its structure impairs micellization, and the introduction of aromatic nuclei also improves dispersibility and can contamination. Due to the increased dye solubilizing power, it shows extremely excellent dye dispersibility even at low bath ratios, and hardly stains the dyeing can body. Therefore, according to the auxiliary agent of the present invention, it is possible to obtain a high-quality dyed product with a uniform hue without adhesion of dye speck or deposition of dye tar on the surface of the fiber material during dyeing.
The present invention will be further explained below with reference to Examples.

"Parts" and "%" in the examples indicate parts by weight and % by weight unless otherwise specified. Example 1 Tetronic 500 anchor parts obtained by addition reaction of 45 mol ethylene oxide to a propylene oxide adduct of ethylenediamine having an average molecular weight of 3000! Using 70 parts of this styrene oxide as an addition catalyst, 10 parts of caustic soda was added to 170 to 1
React for 1 hour at 8 and 0.

The obtained reaction product was in the form of brown viscous liquid [beam color auxiliary agent (A) of the present invention]
] and is soluble in water. Example 2 Tetronic 5,000 obtained by adding 45 moles of ethylene oxide to a propylene oxide adduct of ethylenediamine having an average molecular weight of 3,000 is reacted with 72 moles of styrene oxide at 170 to 18,000 using a caustic soda catalyst for 1 hour.

Subsequently, the obtained addition reaction product is subjected to a sulfation reaction at a temperature of 20 to 40 qo using chlorsulfonic acid. After the reaction, 20 parts of caustic soda was dissolved in 600 parts of water, and the sulfated reaction product was added thereto at a concentration of 40 oo or less, and the neutralization pH was adjusted to 6 to 7. beam coloring aid (B)]. Example 3 In order to compare the performance of the beam coloring auxiliary agent of the present invention and the conventional dyeing auxiliary agent, various performance tests were conducted as described below.

The beam coloring auxiliary agent of the present invention was particularly excellent in dispersibility and level dyeing property, and also had low foaming property.

The results are shown in the table below. Surface performance test method ■ Dispersibility test (Colorpet attachment method) Place the following beam liquid in a pot of Colorpet (manufactured by Nippon Senzo Kikai), wrap polyester processed knit tightly around the holder, and secure both ends with a ○ band. Set the temperature to 1160℃ for dyeing, and immediately cool it down.

After washing with water, the dispersibility is evaluated by the number of casing spots on the cloth. Dye Holonlupine S-20FL (C.
1. DisperseRed167) 3% o. w. f
Dyeing aid 0.5/so 80% acetic acid 0.3 [
/Using a beam solution containing 1:30 Evaluation ◎ No casing spots ○ 〃 Slightly △ 〃 Fair × 〃 Very many■ Evenness test Same unbeamed casing as the polyester processed fabric dyed under the following conditions The cloth was placed in an aqueous solution containing only a dyeing agent and acetic acid, and treated in Colorpet (manufactured by Nippon Senzo Kikai) at 130°C for 1 minute, and the amount of dye transferred from the dyed cloth to the unlianged cloth was compared.

Dye Dianex Orange B-SE (C.1.Dj
speceOrange13) 1.0%o. w.
f Diamond thread BN-SE (C.1.Disp
eDai eRed 127) 0.7% 〃Dianics Flu GR-6 (C.1. DiSpe eBlu
e81) Use a solution containing 0.3% 〃80% acetic acid 0.3% Dyeing machine Small Nuisée (Model 30 dishes) Temperature, time 130°C x 60 minutes Yield ratio 1:30 Migration test liquid Dyeing assistant Agent: Use an aqueous solution consisting of 0.5% acetic acid, 80% acetic acid, and 0.3% acetic acid.

However, one part of dyed cloth and one part of white cloth are used. Yuhi 1:30 EvaluationMeasure the reflectance of the dye migration fabric and white transfer fabric obtained in the above migration test, calculate the beam transfer rate from the reaction rate using the following formula, and the one with a large number is the uniform beam property. It is considered good.

Migration rate = (density correlation value of dyed white fabric/density correlation value of dyed fabric) x 100 density correlation value (11R+Rc/R)2/
2 (R-Rc/R) R: Reflectance/100Rc: Coefficient Side color machine: Kollmorgen Color Eye KCS-1 hem type■
Seed foam test Take the following measurement solution into a measuring cylinder (diameter 75),
Insert the ball filter into this until it reaches the bottom of the cylinder and use the air pump at 90 qo at a speed of 15 min/min.
9. Air is blown into the sand, and the height of the bubbles generated is measured immediately after the blowing has stopped, at 1 pm, and after 30 seconds.

(unit arc). Measurement solution Dianics Orange B-SE (C.1. Disperse Angel 3) 1 night / Soybean color aid 0.5 night / 80% acetic acid 0.3'
/' of the dye solution 300 containing it.

Claims (1)

[Scope of Claims] 1. A dyeing aid for hydrophobic synthetic fiber materials containing at least one compound represented by the following general formula as a main component. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ In the above formula, X_3, X_4, R_1 and R_2 each independently represent a hydrogen atom or an alkyl group having 1 or 2 carbon atoms, f,
g, h, i, j, k, l, m, n, o, p and q each independently represent an integer of 1 to 100, and x represents an integer of 2 to 6.