JPH073669A - Dyeing method for hydrophobic fiber - Google Patents

Abstract

(57) [Summary] [Purpose] By using the alkaline dyeing method or the alkaline dyeing discharge method.
Excellent hydrophobicity by dyeing hydrophobic fiber with ground color part
Gives a dyed product excellent in various fastnesses. [Composition] Alkali is used as a stain-proof or discharge-proof agent
A method for dyeing water-based fibers by a dye-proof method or a discharge-proof method.
In the following general formula (I) as a disperse dye for ground color, [Chemical 1] [Wherein R is a hydrogen atom, a hydroxyl group, C₁~ C_FourAlkyl
Base, C₁~ C_FourAlkoxy C₁~ C_FourAlkyl group, C₁
~ C_FourAlkylcarbonyl group, C₁~ C_FourAlkoxyca
Lubonyl C₁~ C_FourAlkyl group, C₁~ C_FourPhenyla
Rukiru group, C₁~ C _FourAlkoxy C₁~ C_FourAlkoxy
Carbonyl C₁~ C_FourAlkyl group, or -OR₁Q
(Where R₁Is a methylene group or a hydroxyl group, C₁~ C
_FourAlkoxy group or C₁~ C_FourAlkyl Carboni
Linear or branched C optionally substituted with a ruoxy group
₂~ C₆Represents an alkylene group, Q may be substituted
Represents a 5- or 6-membered saturated or unsaturated heterocyclic residue.
You ) Is represented. ] The compound represented by
A method for dyeing hydrophobic fibers as a characteristic.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method for dyeing hydrophobic fibers. More specifically, it relates to an alkali dyeing method using an alkali as a dye-proofing agent, a discharge-printing agent or a discharge-proofing agent, or a method for dyeing a hydrophobic fiber by the alkali-proofing method.

[0002]

2. Description of the Related Art For dyeing a hydrophobic fiber by an alkali resisting method or an alkali resisting method, conventionally, for example, a benzeneazo type disperse dye such as C.I. I. Disperse Red
54, C.I. I. Disperse Red 183, a benzothiazoleazo disperse dye C.I. I. Disperse Red 88, C.I. I. Disperse Red 34
8 or imidazole azo disperse dyes are used.

[0003]

With the demand for high value-added textile products, dye-prevention methods and discharge-prevention methods in dyeing have become important. In particular, as a method of resist-proofing or discharge-preventing methods for hydrophobic fibers, due to the problem of wastewater treatment, the weight of the alkali-resisting or discharge-resisting method is increasing in place of the reduction-preventing or discharge-preventing method which has been the mainstream. However, most of the dyes currently used in this method, especially when used in high concentrations,
There is a problem that the stain-proofing or discharge-proofing property is poor and the stain-proofing or discharge-proofing part does not turn white, and that the fastness of the background color part which is not alkali-proofed or discharge-proofed is poor.
The present inventors have completed the present invention as a result of earnest studies for solving these problems.

[0004]

DISCLOSURE OF THE INVENTION The present invention is a method for dyeing hydrophobic fibers by a dye-proofing method or a discharge-proofing method using an alkali as a dye-proofing agent or discharge-proofing agent. (I)

[0005]

[Chemical 2]

[Wherein R represents a hydrogen atom, a hydroxyl group, C₁~ C
_FourAlkyl group, C₁~ C_FourAlkoxy C₁~ C_FourArchi
Lu group, C₁~ C_FourAlkylcarbonyl group, C₁~ C_FourA
Lucoxycarbonyl C₁~ C_FourAlkyl group, C₁~ C_Four
Phenylalkyl group, C₁~ C _FourAlkoxy C₁~ C_Four
Alkoxycarbonyl C₁~ C_FourAn alkyl group, or-
OR₁Q (here R₁Is a methylene group or a hydroxyl group,
C₁~ C_FourAlkoxy group or C₁~ C_FourAlkyl
A straight chain optionally substituted with a carbonyloxy group or
Branch C₂~ C₆Represents an alkylene group, where Q is substituted
5 or 6 membered saturated or unsaturated heterocycle which may be present
Represents a residue. ) Is represented. ] The compound shown by
A method for dyeing a hydrophobic fiber is provided. Book
Used as a disperse dye for ground color in the method of the invention
The compound represented by the general formula (I) is described in, for example, JP-A-60
-152567, 52-109526, 56-122869
Gazette, Japanese Patent Laid-Open No. 3-14876, Japanese Patent Laid-Open No. 3-72571.
It is described in Particularly good and suitable in the present invention
Specific examples of the compounds used are shown in Table 1.

[0007]

[Table 1]

These compounds are subjected to atomization treatment with a sand mill or the like in the presence of water together with an anionic or nonionic surfactant, and as they are or dried, the present invention is carried out as a powdery or granular disperse dye. It is used to

Dyeing by the dye-proof method or the discharge-proof method of the present invention can be carried out according to a known method. For example, as a discharge-proofing method, the background color is prepared as a non-fixed cloth by adhering the dye prepared as described above to a fiber by an ordinary pad or printing method and drying it. Next, a desired pattern is printed using an alkaline discharge paste and subjected to dry heat or wet heat treatment to prevent discharge dyeing.

As the sizing agent constituting the alkali dye-proofing, discharge-printing or discharge-preventing paste used in the method of the present invention, starches, natural or synthetic gums, seaweeds, fibrin derivatives and the like are used alone or in combination of two or more kinds. These may be used as a W / O type or O / W type emulsion in addition to the method of simply mixing. As the alkaline agent, a base having a pH of 9 or more in a 5% by weight aqueous solution, that is, a hydroxide of an alkali or an alkaline earth metal (for example, sodium hydroxide or potassium hydroxide), a salt of an alkali metal and an inorganic weak acid (for example, an alkali). Examples thereof include metal carbonates, phosphates, and silicates), ammonia, and aliphatic amine derivatives. These can be used alone or in combination of two or more.
These alkaline agents are used in a proportion of 0.5 to 30% by weight based on the paste. In addition, an alkali-resistant disperse dye may be used in combination with these pastes to perform a color-preventive discharge dyeing with a desired color. In this case, as the disperse dye used in combination, a known C.I. I. Disperse Yellow 64,
C. I. Disperse Violet 26, C.I. I. Disperse Blue 56, C.I. I. Disperse Blue 60, C.I. I. Disperse Blue 73,
C. I. Disperse Blue 87 and the like are exemplified. As a heat treatment method after printing a desired pattern, a usual high pressure steam method, a high temperature steam method (HT steam method), a thermosol method or the like is used.

The hydrophobic fiber to which the present invention is applied includes
Examples include polyesters mainly composed of polyethylene terephthalate or polymers of terephthalic acid and 1,4-bis (hydroxymethyl) cyclohexane and diacetate, triacetate, etc., and a mixture of these or cotton, hemp, silk or wool. It may be a knitted product.

[0012]

According to the method of the present invention, it is possible to obtain a dyed product which is excellent in whiteness and is excellent in various fastnesses in the background color portion.

[0013]

The present invention will be described in more detail with reference to the following examples. In the examples, parts and% represent parts by weight and% by weight, respectively.

Example 1 (a) 2 parts of the compound (1) shown in Table 1 was atomized and dispersed in an aqueous medium together with 6.0 parts of a condensate of naphthalenesulfonic acid and formaldehyde. A printing paste having the following composition containing 5 parts of a powdered dye obtained by drying this dye dispersion was prepared.

Powder dye 5 parts Original paste * 1 60 parts Water 35 parts ───────────────────────── Total 100 parts * 1 (original paste)

Clewat N * 2 5 parts Tartaric acid 3 parts Sodium chlorate 5 parts Indalca PA-30 * 3 60 parts Sorbitoses C-5 * 4 40 parts Water 887 parts ─────────────── ───────────── Total 1000 parts * 2 (Made by Teikoku Chemical Co., Ltd .: sequestering agent) * 3 (Cesalpinia: guar gum type glue) * 4 (Avebe: starch type) Paste)

Tetoron Tropical (manufactured by Toray Industries, Inc .: polyester cloth foil) was printed with the above printing paste on the entire surface using a screen gauze and dried at 120 ° C. for 1 minute. (B),
The dried cloth obtained in (a) was printed with an alkaline dye paste prepared with the following composition using a screen gauze with a polka dot pattern, and at 1
Dry for minutes.

Potassium carbonate 3 parts Soda ash 3 parts Original paste * 5 60 parts Sunresist AL-2 * 6 10 parts Teryl carrier DPL * 7 5 parts Water 19 parts ─────────────── ──────────── Total 100 copies * 5 (original glue)

Clewat N * 2 5 parts Indalca PA-30 * 3 60 parts Solibitose PAN * 8 40 parts Water 895 parts ───────────────────────── ── Total 1000 parts * 6 (Nichika Chemical Co., Ltd .: Special Oin Activator) * 7 (Meisei Chemical Co., Ltd .: Aromatic Derivative) * 8 (Avebe Co .: Gum / Starch Paste)

The dried cloths obtained in (c) and (b) are used for 175
HT steam treatment was carried out at 7 ° C. for 7 minutes, followed by washing with water, washing with hot water, reduction washing, washing with hot water, and washing with water in this order and drying.
The obtained printed product had a white polka dot pattern, and the background color portion was further deeply dyed, and was extremely excellent in wet fastness, particularly in washing fastness.

Example 2 (a) A powder dye was prepared by using the compound (2) in Table 1 instead of the compound used in Example 1 to prepare the following dye dispersion.

Powder dye 6 parts Water 970 parts Tamanori SA-25 * 9 8 parts Tartaric acid 3 parts Sodium chlorate 3 parts Mayprinter PE-11 * 10 10 parts ──────────────── ────────── Total 1000 parts * 9 (Arakawa Chemical Co., Ltd .: vinyl acetate, maleic anhydride copolymer) * 10 (Meisei Chemical Co., Ltd .: special nonionic activator)

Tetoron tropical (polyester cloth foil manufactured by Toray Industries, Inc.) is dipped in the above dye dispersion liquid, uniformly squeezed with a mangle to give a squeezing ratio of 90%, and immediately 120
It was dried with hot air at ℃ for 1 minute.

Using the pad / dry cloth obtained in (b) and (a), the same processes as in (b) and (c) of Example 1 were followed to finish. The obtained dyed product had a white polka dot pattern and was excellent in wet fastness in the background color portion.

Example 3 (a) In place of the compound used in Example 1, the compound (3) in Table 1 was used to obtain a printed and dried cloth in the same manner.
(B), Sumicaron turquoise blue S-GLF grains in the alkaline discharge printing paste composition used in Example 1 2
Then, 100 parts of a total of 100 parts of alkali-colored discharge preventive dyeing agent was added to 19 parts of water and 17 parts of water, and the dried cloth obtained in (a) was printed with a polka dot pattern screen gauze and dried at 120 ° C. for 1 minute.
(C) and (c) of Example 1 were processed and finished.
The obtained dyed product had a clear blue polka dot pattern and was extremely excellent in wet fastness in the background color portion.

Claims (1)

[Claims] 1. An alkali is used as a dye-proofing agent or discharge-proofing agent.
Dyeing hydrophobic fibers by dye-resisting method or discharge-resisting method
In the method, as the disperse dye for ground color, the following general formula (I)[Wherein R is a hydrogen atom, a hydroxyl group, C₁~ C_FourAlkyl
Base, C₁~ C_FourAlkoxy C₁~ C_FourAlkyl group, C₁
~ C_FourAlkylcarbonyl group, C₁~ C_FourAlkoxyca
Lubonyl C₁~ C_FourAlkyl group, C₁~ C_FourPhenyla
Rukiru group, C₁~ C _FourAlkoxy C₁~ C_FourAlkoxy
Carbonyl C₁~ C_FourAlkyl group, or -OR₁Q
(Where R₁Is a methylene group or a hydroxyl group, C₁~ C
_FourAlkoxy group or C₁~ C_FourAlkyl Carboni
Linear or branched C optionally substituted with a ruoxy group
₂~ C₆Represents an alkylene group, Q may be substituted
Represents a 5- or 6-membered saturated or unsaturated heterocyclic residue.
You ) Is represented. ] The compound represented by
A method for dyeing hydrophobic fibers as a characteristic.