JPS58125757A - Reactive dye composition - Google Patents

Abstract

PURPOSE:To provide a C.I.Reactive Blue dye having remarkably suppressed dust scattering tendency, by using a monohydric alcohol ester of a higher fatty acid and a higher fatty acid ester of polyethylene glycol sorbitan as dust preventing agents. CONSTITUTION:The dye composition composed of (A) 95-99.95wt% C.I.Reactive Blue 19 and (B) 0.05-5pts.wt. of a dust preventing agent composed of (B-1) a monhydric alkohol ester of a higher fatty acid and (B-2) a higher fatty acid ester of polyethylene glycol sorbitan, wherein the weight ratio (B-1):(B-2) is (50-95):(50-5). The component (B-1) is preferably a 1-18C monohydric alcohol ester of a 10-24C fatty acid, and the component (B-2) is preferably the compound of formula (l+m+n is 10-30; R is 7-23C alkyl).

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to dye compositions with significantly improved dust scattering. For more details, (al C01, Re
active Blue 19 95 to 99.95 parts by weight (b) Dust scattering preventive agent The dust scattering preventive agent consists of (b-t) monohydric alcohol ester of quaternary fatty acid and (b-2 ) consisting of higher fat monocarboxylic acid ester of polyethylene glycol sorbitan, (b-1) and (b-2)
) (7) This relates to a dye composition characterized in that the tK ratio is 50-95:50-5.

In many cases, dyes that are commonly used are in the form of fine powder, and the fine powder or dust is scattered during dye manufacturing, packaging, packing, and dyeing textile products, etc., and can cause damage to the human body and work clothes. In addition to polluting the environment, it may also contaminate some textile products, rendering them completely worthless.

For this reason, many compounds have been proposed as dust scattering prevention agents in order to prevent powdered dyes from scattering.

Examples include water, mineral oil, liquid paraffin, polyhydric alcohols, esters of aromatic carboxylic acids, esters of aliphatic carboxylic acids, polyalkylene glycol ethers of alkylphenols, and polyalkylene glycol ethers of higher alcohols.

By the way, the performance required for a dye dust scattering prevention agent is, of course, first and foremost that it is highly effective in preventing the generation of dye dust, but it is also important that the effect lasts for a long period of time. A necessary requirement is that the dye and anti-scattering agent can be mixed easily and uniformly.

However, some dust scattering preventive agents may have an adverse effect on the dissolution and dispersion properties or dyeability of dyes even when mixed with a small amount of dye.However, dust scattering preventive agents do not have these adverse effects. It is also required.

However, as mentioned above, a large number of compounds have been proposed as dust scattering prevention agents, but in general, compounds that are insoluble in water have a large dust scattering prevention effect and are long lasting, but dyes are dissolved in water in dyeing factories. When the dye solution is dispersed and 13 o'clock, it floats on top of the dye solution and causes so-called oil floating.When pad dyeing is performed using such a dye solution, this oil adheres to the fiber surface and the dye solution does not stick to that area, leaving it white. There is a problem that it becomes mottled.

Although water-soluble dust scattering preventive agents do not cause such problems during dyeing, they generally have a low dust scattering prevention effect, and the resulting product may solidify during storage.

In order to complement the advantages and disadvantages of these water-insoluble dust scattering preventive agents and water-soluble dust scattering preventive agents, emulsifying and dispersing agents can be added to these mixtures and water-insoluble dust scattering preventive agents. Attempts have also been made to prevent oil floating.

L/ Oak f, r Gara, C, 1, Reactive B
Unlike other dyes, lue 1g has the property of adsorbing oil components, so it was not possible to avoid oil floating with ordinary dust preventive agents.

As a result of intensive research and examination, the present inventors have discovered that the combination of monohydric alcohol esters of higher fatty acids and fatty acid esters of polyalkylene glycol sorbitan exhibits extremely excellent effects, and has completed the present invention. .

In the present invention, the target torque is 0. I, Reactive B
Lue 19 is represented by the chemical structural formula below.

(5) In the anti-scattering agent of the present invention, 1 (il
li 7 #: Higher fatty acids of I-ru ester (b-1) include those having 10 to 10 carbon atoms, such as lauric acid, myristic acid, lumitic acid, stearic acid, and oleic acid.
24 natural and synthetic island-class fatty acids, primary alcohols that may have a side chain of 1 to 18 carbon atoms, such as methyl alcohol, ethyl alcohol, butyl alcohol, octyl alcohol, lauryl alcohol, and cetyl alcohol; , secondary natural and synthetic alcohols.

Higher fatty acid ester of polyethylene glycol sorbitan used in combination Cb-4) A compound represented by the general formula (6) l 0 (CH2CH2O)n is preferably used.

Specifically, z+m+n==18 polyethylene glycol sorbitan monolaurate, 10 m −4−n =
20 polyethylene glycol sorbitan monostearate, t+m+, n=25 polyethylene glycol sorbitan monooleate, and the like. Also (b-
The mixing ratio of 1) and (b-2) is 50 to 95:5 by weight
0-5, preferably 60-85:40-15.

Preferred combinations of anti-scattering agents of the present invention are specifically shown in Table 1 below.

Table 1 The method of adding the anti-scattering agent of the present invention is to mix it with the dye wet cake, to spray it on the dye wet cake in the form of a mist, or to spray it simultaneously when spray drying the dye solution or slurry. This is done by stirring and spraying dry powdered dye in the form of a mist.

Furthermore, the compositions of the present invention C, I, Reactive B
In addition to Lue 19 and the dust scattering preventive agent of the present invention, the composition may contain a buffering agent, an additive, a filler, and the like.

The dye composition of the present invention thus obtained is in a wet state, hardly any dye dust is formed, and there is no oil scum even when the dye is dissolved or dispersed in water. It provides uniform dyeing in exhaust dyeing, continuous dyeing, semi-continuous dyeing (cold pad patch method, etc.) and has extremely good printing uniformity in printing.

It is surprising (9) that only by using (b-1) and (b-2) above in the present invention, favorable performance without so-called soapstock can be achieved. It is extremely noteworthy that the absence of any of (b-2) or the substitution of any of them by other analogs does not achieve the objective.

The present invention will be explained in more detail below using Examples.

Example I 70 parts of anhydrous sodium sulfate was blended with 100 parts of dry powder of C11, 1 act, ive Blue 19, and 0.3 parts of the anti-scattering agent of Melon 1 shown in Table 1 was added before stirring and then using a sprayer. Spray with.

The dye composition thus obtained had almost no dye dust (grade 5), and even when a 10% solution of the dye was prepared, no soapstock was observed at all.

Here, a low-scattering dye composition was similarly obtained even when the anti-scattering agent of Sake 1 was added to the aqueous solution or slurry before drying the dye, or when it was simultaneously toughened when the dye was spray-dried.

It is also effective in the same way when Kaede 2 to Black 6 are used as the anti-scattering agent/KL1.

(-10') -10,000 In the case of Comparative Examples A, B, C, and D shown in Table 2, the dust scattering prevention effect was remarkable, but front floating was observed, and in the case of Comparative Examples E and F. Although there was no front floating, only a slight effect on preventing dust scattering was observed.

Dust scattering evaluation 5: There is hardly any dust.

4: A very small amount of dust is formed.

3: Slight dust is formed.

2: Quite a bit of dust.

l: Luxurious dust.

Note that if no anti-scattering agent is added, it is grade 1.

Example 2 (I, l, ILactive Blue 1 g
To 100 parts of dried powder, 70 parts of a formalin condensate (dry product) of sodium methylnaphthalene sulfonate was blended, and 0.4 part of the anti-scattering agent of cup 1 in Table 1 was added to the mixture while stirring and then sprayed. Spray with a machine.

The dye composition thus obtained showed almost no dye dust (grade 5), and even when a 10% solution of the dye was prepared, no prefloating was observed.

Here, even if the anti-scattering agent of 1 is added to the aqueous solution or slurry before drying the dye, or even if the dye (12) is sprayed at the same time as spray-drying, a similarly low-scattering dye composition can be obtained. .

(13 completed)

Claims (1)

[Claims] fil ial C, 1, Reactive Blue
e 19 95 to 99.95 parts by weight Dust scattering prevention agent 0.05 to 5 parts by weight, and the dust scattering prevention agent consists of (b-t) monohydric alcohol ester of higher fatty acid and (b- 2) Consisting of higher fatty acid ester of polyethylene glycol sorbitan, (b-1) and (b-2)
A reactive dye composition (2) characterized in that the weight ratio of the above is 50-95:50-5.A monohydric alcohol ester having 1 to 18 carbon atoms of a fatty acid having 10 to 24 carbon atoms as a monohydric alcohol ester of a higher fatty acid. The dye composition according to claim 1, which uses an alcohol ester. (3) Compound 0 (CH20R20) represented by the following formula as a higher fatty acid ester of polyethylene glycol sorbitan. (1+m+n represents an integer from 10 to 3o, and represents a saturated or unsaturated alkyl group having from 7 to 23 carbon atoms)
The dye composition according to claim 1, which uses