KR800001391B1 - Method for dyeing hydrophobic fiber material with disperse dye - Google Patents

Abstract

Hydrophobic fiber material was dyed uniformly with mixed state dye. The dye was obtained by mixing at least 9 kinds of different chemical structure and single disperse dye. For example, compd. [I; X1 = H, halogen; Y1 = H, C1-4 alky1, C1-4 alkoxy, -COOR1 (R1 = C1-4 alky1); A = benzene nucleus, naphthalene nucleus , compd.(II; X2 = -NHCH2-, -NH-) and compd.(III;Rll = H, -NO2; R12 = H. C1-4 alky1; X4 = H, halogen)couid be used in this method as disperse dye.

Description

Uniform Dyeing of Hydrophobic Fiber Materials by Disperse Dyes

1 to 9 show temperature rising dye speed curves of various dyes.

1 shows C. I. disperse yellow-51,

2 is C. I. Disperse Red-60,

Figure 3 is for C. I. Disperse Blue-56, where (1) is 0.1%, (2) is 0.5%, (3) is 1.0% and (4) is 2.0%.

4, 5, and 6 respectively show the 4th, 5th, and 6th compound dyes in Example 1, and (5) CI dispers yellow-51, (6 ) Is the curve for CI Disperse Red-60 and (7) CI Disperse Blue-56.

7, 8 and 9 show the dyeings having good dyeing compatibility of the first, second and third inventions of Example 1 in Example 1, respectively. (8) is yellow A, (6) red A, and (10) is blue A curve.

The present invention relates to a method of dyeing a hydrophobic fiber material uniformly in a short time by blending a disperse dye, the purpose of the dyeing in a state of good so-called dyeing compatibility by adjusting the dyeing speed of each compound dye in the dyeing process The present invention relates to a method of obtaining a good dyeing product having good reproducibility.

That is, the present invention is a homogeneous dyeing method of hydrophobic fiber material using a disperse dye, characterized in that when dyeing a hydrophobic material by mixing a disperse dye, dyeing a single dye having a different chemical structure at least 9 trillion.

In the case of dyeing synthetic fibers using conventional disperse dyes, as a method of obtaining a homogenous dye, the dyeing speed of the dye is controlled to correspond to the mechanical dyeing ability of the dyeing apparatus, and as far as possible in the initial stage of dyeing. Dye distribution is somewhat uneven at the initial stage of dyeing using a method of uniformly distributing the dye on the fiber to obtain a homogenate, and a higher dyeing power of the disperse dyes than that of other dependent ionic dyes. Also, there are two methods of obtaining a homogenate by the dye transfer power of the dye in the process of maintaining the dyeing temperature. At present, it is safe to use the above two methods in the setting of industrial dyeing conditions. However, many conditions are unnecessarily selected and dyeing takes a long time.

In the case of obtaining a homogenate in a short time as long as it is possible to use industrially used disperse dyes, a method of obtaining a homogenate by adjusting the dyeing speed of the dye is most efficient. At this time, in the case of dyeing using a single dye, it is relatively easy to obtain the leveling salt by controlling the dyeing speed of the dye by appropriately adjusting the dyeing conditions by controlling the temperature raising conditions or using a dyeing aid.

However, in general industrial dyeing, it is extremely rare to dye using only a single dye, and in order to obtain a wide range of dyes, several dyes are often dyed by compounding coloration, and usually yellow-based. Red and blue dyes are used in combination as the three primary colors. When dyeing with these three primary colors, the dyeing speed of each dye is different, so it is necessary to adjust dyeing conditions such as heating conditions according to the dyeing speed of each dye. It takes a long time, and it is difficult to obtain reproducible goodness and the desired color in a short time. Therefore, in the selection of three primary colors, the dyeing speed of each dye is approximate, and even in the case of compound dyeing, a combination of dyes having good dye compatibility that can be handled like a single dye is preferable.

However, in the case of dyeing synthetic fibers with disperse dyes, as described in textile chemist and colorist 2, no.20, 350 (1970), dyeing industry 21, no.3, 139 (1973), etc. It is known that it is extremely difficult to obtain a combination of dyes having good dyeing compatibility over a wide range of colors with a set of three primary colors. In other words, the dyeing speed of dyeing synthetic fibers using disperse dyes depends on the dye concentration, for example, as shown in FIGS. In dyeing, the dyeing speed curve in the high temperature region and the dyeing speed curve in the case of the compound dyeing as shown in Figs. 4, 5, and 6 are close to the dyeing rate of each dye alone. In principle, the range of good compatibility obtained by a combination of three primary colors is limited in principle.

For example, when dyeing CI Disperse Yellow-51, C. I Disperse Red-60, and CI Disperse Blue-56 as three primary colors, dyeing is relatively satisfactory in the combination of gray ratio as in the case of FIG. When the dye is obtained in a color other than gray as shown in Figs. 4 and 6, dyeing compatibility becomes poor.

Therefore, in order to obtain a good dye compatibility with a wide range of colors using a disperse dye, as described in the dyeing industry No. 2, No. 3, 137-146 (1973), a combination of three primary colors of different dyeing speed in advance It is a situation that a combination of three primary colors that are compatible with the desired color is selected and used according to the desired color.

However, this method requires dyeing factories to prepare several kinds of dyes for three primary colors, and it is economically and technically limited because of complicated selection of dyes for color matching. In fact, most factories use dye formulations with poor compatibility, and dyeing takes a long time to obtain leveling.

The present inventors earnestly examined the method of overcoming the nature of such a disperse dye and obtaining a good compatibility result over a wide color range by a set of three primary colors as in the case of cationic dyes or acid dyes. When nine or more different disperse dyes are present in the same dye bath, dyes can be varied in a wide range of colors by varying the proportions of each component, resulting in good compatibility for each color. The present invention was completed by finding out.

In the present invention, a single dye having a different chemical structure needs to be mixed with at least 9 or more kinds. In the case of dyes having less than 9 types of single dyes having different chemical structures, a uniform dyeing for the purpose of the present invention cannot be obtained. In particular, this is particularly effective when dyeing the three primary colors by combining the dye over a wide range of colors, the dye compatibility in any color is good and can not be easily uniformly effected.

In the practice of the method of the present invention, nine or more kinds of dyes may be added to the dye bath at the time of dyeing in a dyeing factory, but when this is complicated, it is convenient to mix nine or more kinds in advance. In this case, it is practical to select and prepare three primary color dyes appropriately so that they can be used in a wide range of colors, and mix them according to the desired color.

In this case, the three primary color dyes are usually a bright yellow, red, blue dye, but in the present invention, in addition to the three primary colors such as orange or yellow brown as a yellow dye, ruby, red brown, etc. as a red dye, dark blue It means the case where (dark blue), olive color, blue gray (gray), etc. are used as a blue dye.

In addition, olive, brown, etc. may be prepared in advance of two or more mixed dyes. Hereinafter, the present invention will be described in detail with respect to the case where the broadest range of three primary colors is applied.

At least three dyes with different chemical structures with a primary wavelength of 560-600 nm when the CIE standard observer sees dyes of almost the same concentration as the JJIS LO 802A table. It is prepared by mixing as described above, and is prepared as a red component by mixing three or more kinds of dyes having different chemical structures having a dominant wavelength of 600-770 nm and a complementary dominant wavelength of 560 nm or less. Similarly, a mixture of three or more dyes having different chemical structures having a dominant wavelength of 495-380 nm and a complementary dominant wavelength of 560 nm or more are prepared. When the yellow, red, and blue components thus obtained are used as the three primary colors, color combinations result in nine or more dyes present in the dye bath, and any color can be applied over a wide range of colors obtained by the three primary colors. Good dyeing compatibility results are obtained.

Furthermore, the principle of the present invention is to enable the blended dye yarn to realize a state in which at least 9 dyes having different chemical structures are present in the dye bath. Therefore, instead of using the three primary color components of yellow, red, and blue as described above, one or more aliphatic mixed dyes, preferably two or more, are prepared by mixing three or more components of dyes with significantly different colors. As a result, even if 9 or more types of dyes are present in the dye bath, there are restrictions such as a limited color range than in the case of blending with the three primary colors. Nothing. In addition, blending 9 or more types of dyes of the same color is not a problem.

The disperse dyes used in the process of the invention point to the dyes as described in the section of disperse dyes of the Color-Index 3 edition (published by Society of Diamonds and Calilist), which differ in chemical structure and differ in color. The dyes classified by the index number are used in combination.

Among these, the disperse dyes which can be advantageously used in the present invention include a compound having the following structure.

Food,

Food,

Food,

Food,

Food,

Food,

Food,

Food,

Food,

Food,

Food,

Food,

Moreover, even for dyes with different chemical structures, the degree of difference is low and the basic skeleton structure is the same and slightly different from one of the terminal substituents, for example, when the difference in the number of carbon atoms in the alkyl or alkoxy of the substituent is also about 1 or more mixed. In the case of having a eutectic point, it is treated as two kinds of dyes, and when it does not have a eutectic point, both are treated as one type of dye.

For example, since the combination of the following dyes (1) and (2) does not have a eutectic point, it is treated as one kind of dye even when two kinds are mixed, and the combination of the dye (2) and the dye (3) has a eutectic point. Since it has, it can be handled as two types of dye.

Furthermore, when dyes (1) and dyes (2) are used in addition to dyes having two or more different structures, the dyes (1) and (2) can be used simultaneously.

In the method of the present invention, when blending nine or more kinds of three primary color dyes to obtain a blended dye composition, for example, only by using high sublimation fastness disperse dyes (so-called high energy-type dyes) Three primary colors of dye composition having good sublimation fastness with good sublimation fastness and consistent dyeing speed are obtained, and when mixed with a homogeneous disperse dye (so-called low energy-type dye), A dye composition of three primary colors is obtained, which is satisfactory at the same time, the dyeing speed is consistent, and the reproducibility of the dye is extremely excellent and the dyeing is easy.

Furthermore, if each of the three primary color components is balanced with high energy-type dyes and low energy-type dyes, the dyeing rate is consistent with the dyeing speed, and the fastness is also practical. Three primary colors of (汎 用 性) are obtained.

When at least 9 dyes are mixed to obtain a medium color density, the proportion of one dye with the highest proportion is 60% by weight or less (based on the weight of the composition), the second highest The proportion of the dye occupying the proportion and the third largest proportion of the dye is about 45% or less and 30% or less, respectively, based on the weight of the composition. In addition, the sum total of the ratio of the dye which occupies a ninth largest ratio, and the dye which occupies a ratio below is at least 1 weight% based on the composition total weight.

In the method of the present invention, the mixing ratio of the dyes having different chemical structures may be arbitrarily used when the three primary colors are mixed, and the proportion of the dyes of one type to the whole is generally suitably 70% or less. The ratio which occupies the ratio of a high dye and a 2nd position is suitable when it is 90% or less.

Fiber materials to be dyed according to the process of the invention include synthetic fiber materials which can be dyed with conventional disperse dyes, such as polyester, triacetate, diacetate, polyamide and polyacrylonitrile fibers. In particular, the method of the present invention can be effectively used for high temperature dyeing and carrier dyeing method for polyester fibers.

According to the method of the present invention, a good dyeing compatibility is obtained at any blending ratio, but in particular, when dyeing using a dyeing compound having a relatively good dyeing compatibility, for example,

(1) Easily obtain uniform salts, and it is possible to rationalize dyeing factories such as short time dyeing.

(2) Less plaque occurs when compared with poor compatibility.

(3) Even if there are some non-uniformity in dyeing condition, it causes less plaque.

(4) Even when repeatedly dyeing, dyeing with good reproducibility with a small difference in color and density of the dyeing product can be obtained.

There are effects as described above, and it is extremely important to obtain a dye blend having good dye compatibility in the dyeing industry.

In this way, it is surprising from the common knowledge that the dispersion dyes are used in the formulation of 9 or more types, especially as the three primary colors, and the dyeing compatibility is good even when any blending ratio is taken. Extremely large

When the method of the present invention is explained in more detail by an industrial example, three or more types of dyes having different chemical structures are mixed among yellow dispersions commercially available as three primary yellow components to prepare one mixed yellow dye. In this case, the number of dyes to be mixed may be arbitrarily used as long as it is three or more, but the type and number of dyes to be used as appropriate components may be adjusted according to the color and color fastness preferable as yellow for three primary colors. The red component and the blue component are similarly obtained by appropriately mixing and dyeing.

If necessary, it may be added to the three primary colors and a separate dye may be used. Such dyes may be mixed in the dyeing step, but it is convenient to prepare the dyes mixed in the dyeing step and supply the dyeing process as a three primary dye having good dyeing compatibility.

When the three primary color dyes blended by the method of the present invention are used in a conventional manner, even when any blending is performed, a good dye compatibility is always obtained, and dyeing and dyeing with good reproducibility are possible.

In the dyeing of the present invention, even if a normal dyeing agent is used in combination, there is no problem. In some cases, the amount of the dyeing agent used can be reduced.

Hereinafter, the method of the present invention will be described in detail with reference to the following Examples.

Example 1

As three primary colors with good dye compatibility, yellow A, red A and blue A are prescribed and formulated as follows.

Using the three primary color compounding raw materials thus obtained, high temperature dyeing of the Tetron processed woven fabric was carried out as follows. The dye compatibility was good in any compounding. The dyeing rate curves for each formulation are as shown in FIGS. 7, 8 and 9.

TABLE 1

See also C.I Disperse Yellow-51, C.I. High temperature dyeing of Tetron processed yarn fabrics using Disperse Red-60 and CI Disperse Blue-56 was carried out by the following formulation, and the dyeing compatibility of the fifth formulation was slightly good. It was poor. The dyeing speed curves of the three primary colors in each formulation are as shown in FIG. 4, FIG. 5, and FIG.

TABLE 2

In the first formulation, the condition of the polyester spun yarn at a flow rate of 30 l / kg / min of the salt solution in one direction so as to circulate from the inner side to the outer side, and the temperature was increased from 50 ° C. to 130 ° C. to 2 ° C./min and maintained at 130 ° C. for 30 minutes. When the tooth dyeing was carried out, the difference in the concentration color difference between the dyeing yarn of the inner side of the tooth and the dyeing yarn of the outer side was minute and uniform salts were obtained. It was disproportionate.

Example 2

As three primary colors with good compatibility, yellow B, red B and blue B were formulated as follows, respectively.

The dye was used to dye the Tetron processed yarn fabric at a high temperature at the following compounding ratio. The compatibility was good in all cases, and a uniform salt was obtained.

TABLE 3

As a reference example, C.I. Disperse Yellow-64, C.I. Disperse Red-60, C.I. Compound dyeing was performed using Disperse Blue-56, and the compatibility was good only in the case of gray as follows, and the compatibility of other compound was poor.

TABLE 4

In the eighth formulation, the fabric of polyester processed yarn is 90 m / min and the circulation time is 2.7 min / 1. The cycle is 50 ° C to 100 ° C at 3 ° C / min and 100 ° C to 130 ° C at 1 ° C /. The resultant was dyed using a liquid type dyeing machine under conditions of holding for 30 minutes at a temperature of 130 ° C., whereby a uniform and good dyeing product was obtained. On the other hand, for comparison, similar dyeing was carried out as the thirteenth formulation having poor dye compatibility, which was not in accordance with the method of the present invention, and a poor dyeing with salt spots was obtained.

In Example 2, three primary colors were mixed using yellow B 'instead of yellow B, red B' instead of red B, and blue B 'instead of blue B, and eight dyes having a single chemical structure were mixed in a salt bath. As a result of dyeing, the effect of the present invention was not obtained and the dye compatibility was poor.

Example 3

As three primary colors with good dye compatibility, yellow C, red C, and blue C were each formulated as follows.

Using the dye, the Tetron processed yarn was subjected to high temperature dyeing at the following compounding ratio. The compatibility was good in all cases, and a homogenous salt was obtained.

TABLE 5

Example 4

A mixed brown dye was prepared according to the following formulation as a compounding dye having good dye compatibility.

Using the brown dye thus obtained and the three primary colors obtained in Example 3, dyeing was carried out as follows, and the dyeing compatibility was good in all cases.

Example 5

The dye compositions described below were prepared using the lower dyes processed as in commercially available disperse dyes.

Polyester spun yarn Cheese was dyed to a uniform brown under the following dyeing conditions. The compatibility was good, and as a result, the color of the first or later dye was uniform, and there was no difference in color inside or outside the tooth.

Dyeing Condition:

Mixed Yellow D 1.0% o.w.f

Red D 0.5% o.w.f

Blue D0.25% o.w.f

Auxiliary Sumipone TF (Semidomo Chemical Anionic Surfactant) ¹ g / L

pH ₅ Sodium acetate 1g / ℓ

Acetic acid 0.25g / ℓ

Jadeite ratio 1: 15

Temperature from room temperature to 100 ° C: 30 ° C / min

100 ° C to 130 ° C: 1 ° C / min

Circulation of salt bath 30ℓ / kg / min

Claims (1)

As described in the text and as shown in the drawings, in the dyeing of hydrophobic materials by mixing disperse dyes, hydrophobic fibers by disperse dyes, which are dyed in a state in which at least nine different disperse dyes having different chemical structures are mixed. Uniform dyeing of the material.

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