JPH0733999A - Basic dye composition and dyeing of fiber by using it - Google Patents

Abstract

PURPOSE:To provide the title composition which can realize dyeing in vivid hue, is excellent in color fastness to washing and light, and is inexpensive, and to dye polyacrylonitrile fibers or modified polyester fibers by using it. CONSTITUTION:The composition consists of 1-70wt.% of one or more triphenylmethane dyes and 99-30wt.% of one or more basic dyes selected from azo, methine, azomethine, azine, oxazine, thiazine and diphenylmethane dyes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a basic dye composition and a fiber dyeing method using the same, and more specifically,
The present invention relates to a basic dye composition suitable for dyeing a polyacrylonitrile fiber and a modified polyester fiber, and a fiber dyeing method using the same.

[0002]

2. Description of the Related Art A triphenylmethane dye, which is one of basic dyes, is known as a dye for polyacrylonitrile fiber and modified polyester fiber.

[0003]

However, although triphenylmethane dyes can be dyed with a clear hue and can be manufactured at low cost, they have problems such as poor fastness to washing and sunlight. It has not been omitted in the dyeing of quality polyester fibers and the like. Nowadays, it is widely used not only for dyeing fibers, but also for coloring paper, leather, plastics and the like, and for coloring printing inks and varnishes in place of lake pigments.

As a result of earnest studies on the use of a triphenylmethane dye for fiber dyeing, the present inventors mixed a triphenylmethane dye and a basic dye other than the triphenylmethane dye in a specific amount ratio. As a result, they have found that the above problems can be solved, and have completed the present invention.

That is, an object of the present invention is to provide a basic dye composition which can be dyed with a clear hue, is excellent in fastness to washing and sunlight, and can be manufactured at low cost, and a method for dyeing fibers using the same.

[0006]

The basic dye composition of the present invention comprises one or more triphenylmethane dyes 1.
To 70% by weight, and 99 to 30% by weight of one or more basic dyes selected from azo dyes, methine dyes, azomethine dyes, azine dyes, oxazine dyes, thiazine dyes and diphenylmethane dyes. %.

Examples of the triphenylmethane type dye which is one component of the basic dye composition of the present invention include malachite green, methyl violet, diamond green,
Mention may be made of magenta, crystal violet, parafuchsin, light blue, ethyl green and aniline blue.

The basic dye which is the other component of the basic dye composition of the present invention includes azo dyes, methine dyes, azine dyes, oxazine dyes, thiazine dyes, azomethine dyes and diphenylmethane dyes. Examples thereof include dyes.

Examples of azo dyes include C.I. I. No. Basic Red 18, C.I. I. No. Orange 2, C.I.
I. No. Basic orange 24C. I. No. Basic Brown 1, C.I. I. No. Basic red 4
0, C.I. I. No. Basic Red 15, C.I. I. N
o. Basic Red 36, C.I. I. No. Basic Violet 20, C.I. I. No. Basic Violet 20, C.I. I. No. Basic Violet 27
And so on.

Examples of azomethine dyes include C.I. I. N
o. Basic Yellow 28, C.I. I. No. Basic Yellow 51 and the like can be mentioned.

Examples of methine dyes include C.I. I. No. Basic Yellow 11, C.I. I. No. Basic Orange 21, C.I. I. No. Basic Red 13, C.I.
I. No. Basic Red 14, C.I. I. No. Basic Red 15, C.I. I. No. Basic red 3
6, C.I. I. No. Basic Violet 7, C.I.
I. No. Basic violet 15, C.I. I. N
o. Basic Violet 20, C.I. I. No. Basic Violet 27, C.I. I. No. Basic Red 35 and the like can be mentioned.

Examples of azomethine dyes include C.I. I. N
o. Basic Yellow 28, C.I. I. No. Basic Yellow 51 and the like can be mentioned.

Examples of azine dyes include C.I. I. No. Basic Blue 64, C.I. I. No. Basic red 2 and the like can be mentioned.

Examples of oxazine dyes include C.I. I. N
o. Basic Blue 3 and the like can be mentioned.

Examples of thiazine dyes include C.I. I. No.
Basic Blue 9 and the like can be mentioned.

Examples of diphenylmethane dyes include C.I.
I. No. Basic Yellow 2 and the like can be mentioned.

The mixing ratio of the basic dye composition of the present invention is
1 to 70% by weight of triphenylmethane dye, azo dye, methine dye, azomethine dye, azine dye,
The basic dye such as oxazine dye, thiazine dye and diphenylmethane dye is 99 to 30% by weight. This is because if the compounding ratio of the triphenylmethane dye is less than 1% by weight, it is economically unfavorable, whereas if it exceeds 70% by weight, the fastness to washing and sunlight may be poor depending on the compounded dye. It may decrease.
Preferably, it is 5 to 60% by weight, more preferably 30 to
It is 50% by weight.

Fibers that can be dyed with the basic dye composition of the present invention include polyacrylonitrile fiber and modified polyester fiber.

Further, in the dyeing method using the basic dye composition of the present invention, the above fiber is used in addition to the above basic dye composition,
By using acetic acid, formic acid, phosphoric acid, polyphosphoric acid, sodium acetate, etc., various known staining methods can be applied,
Generally, it can be applied to the dip dyeing, printing, exhaust dyeing method, cold batch method, vat steam method and the like. Specifically, the basic dye composition of the present invention is dissolved with acetic acid, sodium acetate and a surfactant to prepare a dye bath, and then the fiber is immersed in the dye bath at 50 to 130 ° C., for example. Be seen. Next, the obtained dyed product may be washed with water. When dyeing by printing, the basic dye composition of the present invention is mixed with a sizing agent such as alkyl cellulose or sodium alginate to prepare a printing paste, which is printed on fibers and semi-dried. After that, it is performed by steaming or heat treatment. Next, the obtained dyed product may be sorbed or washed with water to remove the solid content.

[0020]

【Example】

Example 1 Malachite green oxalate: 20 parts, C.I. I. No. Basic Yellow 28:35 parts and C.I. I. No. A powder composition consisting of 14:45 parts of Basic Red was prepared. A dyebath was prepared by dissolving 0.5 part of this composition in 500 parts of water and further adding 0.15 part of sodium acetate and 0.15 part (indicated with a specific nonionic surfactant name).
The polyacrylonitrile fiber was dipped in the dye bath, heated to 90 ° C. over 40 minutes, and kept in this state for 1 hour for dyeing. Then, after washing the polyacrylonitrile fiber with water, the content of 0.5% (containing the specific detergent name) is included.
It was kept in 0 part of water at a temperature of 80 to 90 ° C. for 10 minutes. Then, it was washed with water and dried to obtain a black polyacrylonitrile fiber.

Example 2 2.5 parts of methyl violet, 8 parts of malachite green oxalate, C.I. I. No. Basic Yellow 28:25
Department, C.I. I. No. Basic Red 14:15,
C. I. No. A powder composition consisting of 46:10 parts of Basic Red was prepared. Next, paste 1 is prepared by adding 150 parts of water to 100 parts of powdered Yuzen paste made of starch,
Paste 2 was prepared by adding 200 parts of water to 100 parts of Nafka crystal gum. Then, paste 1:70 parts and paste 2:70 parts were mixed to prepare a base paste. Then
0.5 parts of the powder composition, thioethylene glycol 1.
5 parts, 2 parts of 30% acetic acid and 1 part of 50% tartaric acid, 3 parts of hot water
After dissolving in 0 part, 60 parts of the above-mentioned original paste was added and thoroughly mixed, 4 parts of a resorcin 50% solution was further added to prepare a color paste. Next, the modified polyester fiber is printed with the above-mentioned color paste, semi-dried at 50 ° C., then heat treated with steam at 100 ° C. for 30 minutes, washed with water, and then sorbed at 70 ° C. for 20 minutes It was washed with water and dried to obtain a modified polyester fiber uniformly printed in a clear black color.

Examples 3 to 14 and Comparative Examples 1 to 3 The dyes shown in Table 1 were blended in the proportions shown in Table 2 to give Example 1
The polyacrylonitrile fiber was dyed in the same manner as.
In each case, a polyacrylonitrile fiber uniformly printed in a clear black color was obtained.

[0023]

[Table 1]

[0024]

[Table 2]

Test Example For the fibers dyed according to the above Examples 1 to 14 and Comparative Examples 1 to 3, a dyeing fastness test against washing was conducted according to JIS L.
0844, and dyeing fastness test against sunlight was performed according to JIS L0841. The results are shown in Table 2 above.

[0026]

As is apparent from the above description, the basic dye composition of the present invention comprises a combination of basic dyes which can be dyed clearly, have excellent fastness to washing and sunlight, and are inexpensive. It is economical.

Claims (2)

[Claims] 1. 1 to 70% by weight of one or more triphenylmethane dyes, an azo dye, a methine dye,
Azomethine dyes, azine dyes, oxazine dyes,
A basic dye composition comprising 99 to 30% by weight of one or more basic dyes selected from thiazine dyes and diphenylmethane dyes. 2. A method for dyeing fibers using the basic dye composition according to claim 1.