KR100977584B1 - Method of dyeing with reactive dye - Google Patents

Abstract

A composite material containing a single material selected from polyamide fibers and cellulose fibers or a material selected from synthetic polyamides and natural polyamide fibers and a material selected from cellulose, polyacrylic and polyester fibers, is synthesized with cellulose fibers. Reaction dyes are selected according to the concentration ratio of the dyes of the synthetic polyamide fibers to the cellulose fibers when the polyamide fibers are dyed in the same bath and the classification of the reaction dyes by the correction color difference. And dyes selected from acidic metal dyes and disperse dyes, and dyeing by dissolving the entire dye to be used in one bath.

Dyeing, Same Bath, Corrected Color Difference, Reaction Dye

Description

Dyeing method using reactive dyes {METHOD OF DYEING WITH REACTIVE DYE}

DETAILED DESCRIPTION OF THE INVENTION The present invention is capable of dyeing a composite material made of almost all fibers, etc., in a single color using a same color system, with a solid color and high quality. It is about.

More specifically, the present invention classifies the reaction dyes covalently bonded to the fibers according to the difficulty of dyeing by the reaction dyes of the polyamide fibers, dyeing conditions, etc., and by the classified reaction dyes or this reaction By combining dyes with dyes suitably selected from acidic metal dyes, cationic dyes and disperse dyes, a single bath or a composite material composed of almost all fibers which can be covalently bonded to the reaction dye The present invention relates to a new dyeing system that can be dyed with a color system and has high quality, and at the same time, is economical and a dyeing method based on this system.

In recent years, composite materials composed of multiple fibers have been used for health clothing, functional clothing, absorbent, quick-drying, and cold feeling clothing. In addition, the textile dyeing industry is seeking to improve the competitiveness of composite materials made of multi-fiber by high quality and high performance processing. Among them, commercialization of functional garments made of synthetic polyamide fibers and cellulose fibers has been a major problem.                 

Processing multi-fiber composites is a complex and difficult task. In the dyeing plant, the method of dyeing this composite material by one bath or one bath two-stage dyeing method using reaction dyes, acid dyes, and direct dyes was examined. Stable color and solid dyeing were not obtained. It was only obtained that can not stand.

For this reason, in the dyeing factory, the cotton side is first dyed using a reaction dye, and after treatment such as soaping, the polyamide is dyed in an acid bath using an acid dye or an acid mordant dye. The dyeing was inevitably carried out by a complete two bath two step method. However, this method requires a lot of operation for a long time and is inexpensive. In addition, the dyeing according to the two bath two-stage method was insufficient in the wet fastness of the dyeing product, and thus, there was a limit in commercialization.

The present inventors first propose a solid dyeing method of a polyamide-based material by reaction dyes (Japanese Patent Laid-Open No. 7-97777). This method is characterized by dyeing in an acidic or neutral bath containing a large amount of sodium sulfate, by which the polyamide-based material can be dyed using a reaction dye that can be covalently bonded to cellulose fibers.

The present inventors also described 6-nylon as a method of dyeing a composite material composed of synthetic polyamide, wool, silk and cellulose fibers alone and a composite material made of synthetic polyamide, wool, silk, cellulose and other fibers using a reaction dye. According to the effect of the pH of the dye bath when dyeing, the reaction dyes are classified into acidic reaction dyes and neutral reaction dyes, and a homogeneous dyeing method is obtained in which a mixture of both is used to obtain the same color. Japanese Patent Application No. 2000-388497).

However, thereafter, there is a strong demand for dyeing composite materials containing synthetic polyamides that are more easily dyed than cotton, such as non-staining synthetic polyamides and conversely sweat-absorbing synthetic polyamides. It was found that it was difficult to cope with all of the dyes alone.

In addition, in the case of a material having a very low proportion of synthetic polyamide of 15% or less, or an extremely light color having a dyeing concentration of 0.5 owf (wt% to the weight of the chloride), the synthetic polyamide is dyed darker. Even if the color of the same color system was obtained, it was also found that the uniformity of the surface of the composite material was inferior.

In addition, attempts have been made to manufacture a number of composite materials, such as composite materials with polyester fibers, in particular with polytrimethylene terephthalate (PTT) or composites with polyacrylic fibers, and are being developed and reviewed in a practical manner. The solid dyeing method by the short method is also desired.

Therefore, for any complex composite material, a reasonable dyeing method that can achieve solid and high-quality dyeing and at the same time economical has been desired.

 In view of these circumstances, the present inventors earnestly researched and examined in order to develop a method capable of excellent dyeing in most composite materials which are difficult to dye. As a result, the reaction dyes are classified by the difference in the dyeability to the cellulose fibers and the dyeing properties to the synthetic polyamide fibers, and according to this classification, by selecting one or two or more reaction dyes or combinations thereof suitable for the dyeing material. Or by combining this reaction dye with other dyes such as acid-containing metal dyes, cationic dyes or disperse dyes, all the dyes used are adjusted in one bath to be dyed by the same color for most composite materials. In addition, the present invention has been completed by finding a dyeing system capable of industrially obtaining high-quality dyeings.

The present invention is a composite material containing a single material selected from synthetic polyamides, natural polyamide fibers and cellulose fibers, or a material selected from synthetic polyamides and natural polyamide fibers, and a material selected from cellulose, polyacrylic and polyester fibers. As a dyeing method of dyeing a material,

Select one, two or more of the reaction dyes according to the classification of the reaction dye according to the concentration ratio of the dyeing of the synthetic polyamide fibers to the cellulose when the cellulose fibers and the synthetic polyamide fibers in the same bath and the correction color difference,

By the reaction dye or by combining the reaction dye with a dye selected from acidic metal dyes, cationic dyes and disperse dyes,

Dissolve all of the dyes in one bath,

It is a dyeing method using a reaction dye, characterized in that dyeing the single material or composite material.

Here, the concentration ratio of the dyeing material of the synthetic polyamide fiber to the cellulose fiber and the correction color difference are 6-nylon jersey and cotton knit (without the silk), and the weight ratio of about 50%, respectively, sodium sulfate 40 ~ 80g / L The color of the obtained dyeing product obtained by dyeing in a salt bath (pure acid without addition) of pH 6.3 to 7.0 added or in a salt bath (acid addition dye) in which 40 to 80 g / L of sodium sulfate was added and 1% owf was added. It is obtained from the color density ratio of the 6-nylon stop dye to the cotton dye when measured, and the correction color difference.

In the present invention, the reaction dye is classified according to this concentration ratio and the corrected color difference. The present invention also provides a method for classifying reaction dyes, wherein the concentration ratio and the correction color difference are obtained by the above method.

In addition, wool and silk are mentioned as a natural polyamide fiber in the above.

To contain means that it may contain other than the listed material.

The combination of dyes means both the case where two or more dyes are mixed and added to a salt bath, and the case where two or more dyes are added and combined in a separate salt bath.

In addition, the present invention is a dyeing method using the reaction dye, the classification of the reaction dye according to the concentration ratio and the correction color difference,

When cellulose fiber and synthetic polyamide fiber are dyed in the same bath without adding sodium sulfate and acetic acid,

Dyestuffs having a concentration ratio of the synthetic polyamide fiber to the cellulose fiber having a dyeing ratio of 150 to 600% and having a correction color difference other than Black are 5.0 or less and black or less are 8.0 or less.

If the concentration ratio is 85% or less and the correction color difference is other than black, dyes of C or less are 5.0 or less and 8.0 or less.

If the concentration ratio is 85 to 135% and the correction color difference is other than Black, dyes of 5.0 or less and Black or less are 8.0.

Dyes with a concentration ratio of more than 600% and a correction color difference of 3.0 or less

And dyes having a concentration ratio of 30% or less and a correction color difference of 3.0 or less are used as SCs,

or

When cellulose fiber and synthetic polyamide fiber were dyed by adding sodium sulfate and acetic acid in the same bath,

Dyestuffs having a concentration ratio of the synthetic polyamide fiber to the cellulose fiber having a dyeing ratio of 100 to 300% and having a correction color difference other than Black are 5.0 or less, and black and 8.0 or less.

When the concentration ratio is 50 to 120% and the correction color difference is other than Black, dyes having 5.0 or less and 8.0 or less are used as HQ.

Using dyes belonging to A, C, SNC, HP or HQ as dyeing agents and dyes belonging to SN, SNC and SC as dyes for adjustment It is a dyeing method.

Here, the main agent of dyeing is a dye which is responsible for the main part of dyeing in dyeing of fibers, and the dye for adjustment is a dye used for adjusting the color and the like after being dyed by the main agent of dyeing.                 

The present invention also provides the following dyeing method for each of various dyeing materials by a reaction dye appropriately selected according to the classification of the reaction dye, or by combining the reaction dye with another dye.

That is, the present invention is a dyeing method using the above-described reaction dye, using a composite material of synthetic polyamide fibers and cellulose fibers of less than 10% water absorption, one or two or more selected from the dyes belonging to the class A It is a dyeing method using a reaction dye, characterized in that the dyeing.

Here, water absorption refers to the weight percentage of water in the fiber when the fiber is placed in an environment of 100% RH and water is included in the fiber.

In addition, the present invention is a dyeing method using the above reaction dye, a synthetic polyamide fiber having a water absorption of 10% or more, or a composite material of synthetic polyamide fiber and cellulose fiber of 10% or more water absorption to It is a dyeing method using a reaction dye, characterized in that dyeing using one or two or more selected from the dyes belonging.

The dyeing method of claim 7 can be carried out at a temperature range of 40 to 90 ℃ dyeing temperature (temperature of the dye bath). That is, the present invention is a dyeing method using a reaction dye, characterized in that the dyeing is carried out at a temperature range of 40 ~ 90 ℃ as this dyeing method.

Conventionally, in the dyeing of synthetic polyamide fibers, the dyeing is performed at a high temperature of 90 ° C. or more, and in the dyeing of the composite material of the synthetic polyamide fiber and the cellulose fiber, the dyeing is more than 90 ° C. and less than 90 ° C. in a separate bath. In the above dyeing method, since the dyeing temperature can be performed in one bath in the range of 40 to 90 ° C., not only can the energy cost be reduced, but also the management of the dyeing temperature in the case of a composite material is easy, and wrinkles are prevented. Industrially preferred. In the dyeing method described above, dyes of the dichroic polyamide are dyed using a dye of class A, which is easy to dye polyamide, and excellent dyeing can be obtained by setting the dyeing temperature at such a low temperature. The inventors have discovered. As dyeing temperature, 60-80 degreeC is more preferable.

In addition, the present invention is a dyeing method using the above reaction dye, one or two or more dyes selected from the dyes belonging to the A or SNC, and one or two or more selected from the dyes belonging to the C It is a dyeing method using a reaction dye characterized by dyeing a composite material of synthetic polyamide fibers and cellulose fibers using a combination with a dye. The proportion of class A in the combination is preferably in the range of 10 to 90% by weight.

In addition, the present invention is a dyeing method using the above-mentioned reaction dye, and contains a composite material of a fiber selected from a synthetic polyamide fiber and a natural polyamide fiber having a water absorption of 10% or more and a cellulose fiber, or a synthetic polyamide fiber. Composite materials whose ratio is about 15% by weight or less,

It is a dyeing method using a reaction dye, characterized in that dyeing using one or two or more selected from the dyes belonging to the C class.

In addition, the present invention, as a dyeing method using the reaction dye, a composite material of a cellulose fiber and a fiber selected from synthetic polyamide fibers and natural polyamide fibers,

Using one or two or more selected from dyes belonging to the above class C,

It is a dyeing method using a reactive dye, characterized in that dyeing at a dyeing concentration of less than about 0.5% o.w.f.

In addition, the present invention is a dyeing method using the above reaction dye, cellulose fiber or polyamide fiber, or both

It is a dyeing method using a reaction dye, characterized in that dyeing using one or two or more of the three primary dyes, Navy dyes or black dyes and dyes belonging to the C class at the same time.

In addition, the present invention is a dyeing method using the above-mentioned reaction dyes, the material of the synthetic polyamide fibers alone, composite materials of synthetic polyamide fibers and cellulose fibers of less than 10% water absorption, or natural polyamide fibers such as wool Made up of materials,

One or two or more reactive dyes selected from dyes belonging to the A, C or SNC groups,

Solubility at 25 ° C. is at least 5 g / L or at 80 ° C. is at least 50 g / L, and after dyeing onto synthetic polyamide fibers 30 g / L anhydrous sodium sulfate, 10 g / L sodium carbonate, temperature 70 ° C., bath ratio 1: It is a dyeing method using a reactive dye, characterized in that dyeing is carried out using one or a combination of two or more selected from acidic metal dyes which do not drop off from the synthetic polyamide fibers even after treatment for 30 minutes under 20 dye bath conditions.

As the reaction dye used here, a combination of one or two or more selected from dyes belonging to class A, or one or two or more selected from dyes belonging to classes C or SNC is preferable.

In addition, the present invention is a dyeing method using the above reaction dye, a composite material of polyacryl fiber and cellulose fiber, or a composite material of polyacrylic fiber, synthetic polyamide fiber and cellulose fiber,

One or two or more reactive dyes selected from dyes belonging to the HP or HQ,

One or two or more selected from a dispersed cation dye or a cation dye dispersed in a salt bath;

The dyeing method using a reaction dye, characterized in that dyeing using a combination of.

In addition, the present invention as a dyeing method using the reaction dye, a composite material of polyester fibers and cellulose fibers, or a composite material of polyester fibers, synthetic polyamide fibers and cellulose fibers,

As a three-color dye, a dye of Navy or a dye of Black, one or two or more reaction dyes selected from the dyes belonging to the HP or HQ,

1 or 2 or more selected from disperse dyes having good dyeing resistance, good coloration in dyeing a composite material of synthetic polyamide fiber and cotton, less cotton contamination and dyeing to synthetic polyamide fiber and good light resistance.

It is a dyeing method using the reaction dye of Claim 6 characterized by dyeing using the combination of these.

In the dyeing method according to claim 11 to 14, the proportion of the reaction dye in the combination is preferably in the range of 10 to 80% by weight.

In all the dyeing methods using the above-mentioned reaction dyes, it is preferable to improve the color fastness by alkali treatment at the end of the dyeing process, and in most cases very important.

In other words, in the case of a composite material containing cellulose fibers, even when the dye containing the alkali on the cellulose fiber side and the case of not containing the cellulose fibers, alkali treatment is performed at the end of the dyeing step to obtain excellent fastness.

As described above, the present invention is also a dyeing method using a reactive dye, characterized in that dyeing containing alkali on the cellulose fiber side or alkali treatment is performed at the end of the dyeing step.

In all the dyeing methods using the above-mentioned reaction dyes, it is sometimes preferable to slightly adjust the color and the concentration even if the dye is dyed with an appropriate dye selected according to the above classification or a suitable combination of dyes. In that case, it is preferable to perform adjustment or correction of color and density using a dye (adjustment dye) selected from dyes belonging to SNs, SNCs and SCs in the above classification.

That is, the present invention also provides dyes for adjusting SNs, SNCs and SCs as dyeing methods for synthetic polyamide fibers, cellulose fibers, or synthetic polyamide fibers and cellulose fibers. It is a dyeing method using a reaction dye, characterized in that performed by.

The following dyes can be illustrated as a reaction dye belonging to the class A.

Sumifix Supra Scarlet 2GF (Sumitomoka Gakuko)

Sumifix Yellow 2GL (product of Sumitomo Kagaku Kogyo)

Sumifix Yellow GN (product of Sumitomo Kagaku Kogyo)

Sumifix Yellow GR (product of Sumitomo Kagaku Kogyo)

Sumifix Gold.Yellow GG (product of Sumitomo Kagaku Kogyo)

Sumifix Brill.Orange 3R (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix Brill.Red G (product of Sumitomo Kagaku Kogyo)

Sumifix Supra Brill.Red BSF (product of Sumitomo Kagaku Corporation)

Sumifix Supra Blue BRF (product of Sumitomo Kagaku Kogyo)

Sumifix Brill.Blue R (product of Sumitomo Kagaku Kogyo)

Sumifix Black B (product of Sumitomo Kagaku Kogyo)

Sumifix Black EX (product of Sumitomo Kagaku Kogyo)

Realan Yellow G (made by Daista)

Realan Gold.Yellow RC (Dysta company product)

Realan Blue RC (made by Daista)

Realan Red RC (made by Daistar Corporation)                 

Levafix Royal Blue E-FR

Sumifix Supra Brill.Red GF (product of Sumitomo Kagaku Corporation)

Cibacron Orange C-3R (product of Chiba Specialty Chemicals)

Cibacron Navy FN-B (product of Chiba specialty chemicals company)

When using the reactive dye of class A, it is preferable to contain at least 60% or more of the dye selected from the above examples in class A.

The following dyes can be exemplified as the reaction dyes belonging to the C class.

Sumifix Supra Brill.Yellow 3GF (product of Sumitomo Kagaku Kogyo)

Sumifix Supra Yellow GRNF (Sumitomoka Gakuko)

Sumifix Supra Brill.Red 3BF (product of Sumitomo Kagaku Corporation)

Sumifix Brill.Blue GL (product of Sumitomo Kagaku Kogyo)

Sumifix Supra Blue 2BNF (product of Sumitomo Kagaku Kogyo)

Sumifix Supra Navy Blue 3GF (product of Sumitomo Kagaku Kogyo)

Sumifix HF Red 2B (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix HF Blue 2R (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix HF Navy 2G (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix Supra Marine BNF (product of Sumitomo Kagaku Kogyo)

Sumifix Supra Turq.Blue BGF (product of Sumitomo Kagaku Corporation)

Cibacron Yellow LS-R (product of Chiba Specialty Chemicals)

Cibacron Yellow C-2R (product of Chiba Specialty Chemicals)                 

Cibacron Scarlet LS-2G (product of Chiba Specialty Chemicals)

Cibacron Red LS-B (product of Chiba specialty chemicals company)

Cibacron Blue LS-3R (product of Chiba Specialty Chemicals)

Cibacron Black F-2B (product of Chiba Specialty Chemicals)

Procion Turq.Blue H-A (by Client)

Kayacion Yellow E-SN4G (product of Nippon Kayaku Co., Ltd.)

In the case of using a reactive dye of class C, the dye selected from the above examples preferably contains at least 60% or more in class C.

Examples of the reaction dyes belonging to the HPs include the following dyes.

Sumifix Supra Yellow 3RF (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix Supra Brill.Red BSF (product of Sumitomo Kagaku Corporation)

Sumifix Brill.Blue GL (product of Sumitomo Kagaku Kogyo)

Sumifix HF Scarlet 2G (manufactured by Sumitomo Kagaku Co., Ltd.)

Kayacion Black B-H (product of Nippon Kayaku Co., Ltd.)

Examples of the reaction dyes belonging to the HQs include the following dyes.

Sumifix Supra Yellow GRNF (Sumitomoka Gakuko)

Sumifix HF Scarlet 2G (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix HF Red 2B (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix Brill.Blue GL (product of Sumitomo Kagaku Kogyo)

Sumifix Supra Blue 2BNF (product of Sumitomo Kagaku Kogyo)                 

Sumifix Supra Navy Blue 3GF (product of Sumitomo Kagaku Kogyo)

Sumifix Supra Navy Blue GNF (product of Sumitomo Kagaku Kogyo)

Sumifix HF Navy 2G (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix Supra Marine BNF (product of Sumitomo Kagaku Kogyo)

Cibacron Black F-2B (product of Chiba Specialty Chemicals)

Kayacion Black E-H (product of Nippon Kayaku Co., Ltd.)

Realan Balck G (product made by Daista)

Reanova Navy CA (product made by Daistar Corporation)

Sumifix Supra Yellow GRNF (Sumitomoka Gakuko)

Sumifix Supra Red 2B (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix Supra Blue 2BNF (product of Sumitomo Kagaku Kogyo)

Sumifix HF Navy 2G (manufactured by Sumitomo Kagaku Co., Ltd.)

Cibacron Black F-2B (product of Chiba Specialty Chemicals)

When using reactive dyes of HPs and HQs, the dyes selected from the above examples preferably contain at least 60% or more of HPs and HQs.

Examples of the reaction dyes belonging to the above-mentioned SNCs include the following dyes.

Sumifix HF Yellow 3R (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix Supra Yellow 3RF (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix Supra Yellow E-XP (product of Sumitomo Kagaku Kogyo)

Sumifix Supra Scarlet 2GF (Sumitomoka Gakuko)                 

Sumifix Supra Rubine E-XF (product of Sumitomo Kagaku Kogyo)

Sumifix HF Scarlet 2G (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix HF Blue 2R (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix HF Blue BG (product of Sumitomo Kagaku Kogyo)

Sumifix Black B (product of Sumitomo Kagaku Kogyo)

Sumifix Black ENS (product of Sumitomo Kagaku Kogyo)

Sumifix Turg.Blue G (N) (product of Sumitomo Kagaku Co., Ltd.)

Cibacron Yellow C-R (product of Chiba Specialty Chemicals)

Cibacron Balck C-2R (product of Chiba Specialty Chemicals)

Drimalen Yellow 3GL (by Clariant)

Drimalen Navy K-BNN (product of Clariant Corporation)

ReaNova Yellow CA (made by Daistar Corporation)

ReaNova Navy CA (product made by Daista Corporation)

Realan Balck G (product made by Daista)

In the case of using reaction dyes of SNCs, it is preferable to contain at least 60% or more of the dye selected from the above examples in the SNCs.

Examples of the reaction dyes belonging to the SNs include the following dyes.

Sumifix Yellow 2Gl (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumifix Gold.Yellow GG (product of Sumitomo Kagaku Kogyo)

Sumifix Brill.Orange 3R (manufactured by Sumitomo Kagaku Co., Ltd.)                 

Sumifix Brill.Red G (product of Sumitomo Kagaku Kogyo)

Sumifix Brill.Blue R (product of Sumitomo Kagaku Kogyo)

Realan Blue RC (made by Daista)

Realan Yellow G (made by Daista)

The following dyes can be exemplified as the reaction dyes belonging to the SCs.

Kayacion Yellow E-SN4G (product of Nippon Kayaku Co., Ltd.)

Cibacron Scarlet LS-2G (product of Chiba Specialty Chemicals)

Cibacron Blue LS-3R (product of Chiba Specialty Chemicals)

Procion Turq.Blue H-A (by Client)

Sumifix HF Navy 2G (manufactured by Sumitomo Kagaku Co., Ltd.)

Solubility at 25 ° C is not less than 5g / L, or at 80 ° C is not less than 50g / L, and after dyeing onto synthetic polyamide fibers 30g / L anhydrous sodium sulfate, 10g / L sodium carbonate, temperature 70 ° C, bath ratio 1 The following dyes can be illustrated as an acidic metal dye which does not fall off from this synthetic polyamide fiber even if it processes for 30 minutes in the salt bath condition of: 20.

lanyl Brill.Yellow 3G (manufactured by Sumitomo Kagaku Co., Ltd.)

lanyl Yellow G (product of Sumitomo Kagaku Co., Ltd.)

lanyl Orange R (product of Sumitomo Kagaku Co., Ltd.)

lanyl Red B (product of Sumitomo Kagaku Co., Ltd.)

lanyl Blue 3G (product of Sumitomo Kagaku Co., Ltd.)                 

lanyl Brill.Blue G (product of Sumitomo Kagaku Kogyo)

lanyl Olive BG (product of Sumitomo Kagaku Co., Ltd.)

lanyl Khaki G (product of Sumitomo Kagaku Kogyo)

lanyl Brown BG (product of Sumitomo Kagaku Kogyo)

lanyl Brown GR (product of Sumitomo Kagaku Kogyo)

lanyl Brown R (product of Sumitomo Kagaku Corporation)

lanyl Gray B (product of Sumitomo Kagaku Co., Ltd.)

lanyl Gray BG (product of Sumitomo Kagaku Co., Ltd.)

lanyl Black BG (product of Sumitomo Kagaku Co., Ltd.)

lanyl Navy Blue TW (product of Sumitomo Kagaku Kogyo)

lanyl Black RW (product of Sumitomo Kagaku Co., Ltd.)

Aminyl Black F-GL (product of Sumitomo Kagaku Kogyo)

The following dyes can be exemplified as a disperse dye having good dyeing properties, good coloration in dyeing a composite material of synthetic polyamide fiber and cotton, less cotton contamination and good dyeing resistance to synthetic polyamide fiber. have.

As a pale color use

Sumikaron Yellow SE-3GL (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumikaron Yellow E-RPD (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumikaron Red E-RPD (product of Sumitomo Kagaku Co., Ltd.)

Sumikaron Blue E-RPD (product of Sumitomo Kagaku Co., Ltd.)                 

Sumikaron Blue E-GRL (product of Sumitomo Kagaku Co., Ltd.)

Sumikaron Blue E-FBL (product of Sumitomo Kagaku Co., Ltd.)

For medium and deep colors

Sumikaron Yellow SE-RPD (product of Sumitomo Kagaku Co., Ltd.)

Sumikaron Yellow SE-4G (product of Sumitomo Kagaku Co., Ltd.)

Sumikaron Red SE-RPD (product of Sumitomo Kagaku Co., Ltd.)

Sumikaron Red S-RPD (product of Sumitomo Kagaku Co., Ltd.)

Sumikaron Brill.Red S-BWF (product of Sumitomo Kagaku Corporation)

Sumikaron Blue SE-RPD (product of Sumitomo Kagaku Co., Ltd.)

Sumikaron Blue SE-2RF (product of Sumitomo Kagaku Co., Ltd.)

sumikaron Turq.Blue S-GL (product of Sumitomo Kagaku Corporation)

Sumikaron Yellow Brown S-BRF (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumikaron Blue S-3RF (product of Sumitomo Kagaku Co., Ltd.)

Sumikaron Black S-XE300% (product of Sumitomo Kagaku Corporation)

Sumikaron Navy Blue S-GL (product of Sumitomo Kagaku Kogyo)

Sumikaron Navy Blue SE-RPD (product of Sumitomo Kagaku Co., Ltd.)

For dyeing synthetic polyamides

Sumikaron Yellow SE-3GL (manufactured by Sumitomo Kagaku Co., Ltd.)

Sumikaron Red S-BLF (product of Sumitomo Kagaku Co., Ltd.)

Sumikaron UL Blue RF (product of Sumitomo Kagaku Co., Ltd.)                 

Sumikaron UL Turq.Blue GF (product of Sumitomo Kagaku Co., Ltd.)

Sumikaron Blue E-FBL (product of Sumitomo Kagaku Co., Ltd.)

Hereinafter, the present invention will be described in more detail.

The present inventors, the problem caused by the dyeability of the reaction dye for the composite polyamide fiber and cellulose fiber in the composite material is classified systematically according to the analysis of the dyeing behavior of both fibers in the same bath It is hypothesized that this can be solved by appropriate selection of dyes based on this classification.

In addition, it was found that the analysis of the dyeing behavior in the same bath of both fibers and the systematic classification of the reaction dyes can be quickly and appropriately determined by the test staining of the beaker scales of the provided dyes. The classification of was developed and the above classification was found. More specifically, the systematic classification of the reaction dye and the classification method of the reaction dye of the present invention can be carried out by the following method, for example.

5 g of commercially refined 6-nylon jersey (* 70d, 24F, ply-twisted yarn) and 5 g of commercially refined unthreaded cotton knit (* 40d, single yarn) were immersed in 100 ml of boiling water at 93-97 ° C for 5 minutes. Furthermore, 500 ml of ion-converted water is added, and it fully infiltrates. After dehydrating this for 5 minutes by the domestic centrifugal dehydrator, the weight of both is weighed.

The weight is 6-nylon jersey 6.93 ± 0.14 g, cotton knit 8.9 ± 0.31 g.

This dehydrated proton is dyed in an atmospheric rotary dyeing machine in a 200 ml salt bath. The dyeing concentration is 2.0% owf of each dye (wt% of dye to fabric weight) (5.0% owf for Navy dye, 10.0% owf for Black dye), anhydrous sodium sulfate 40g / l, (Navy 60g / l for dyes, 80g / l for black dyes), dyed for 40 minutes at a temperature of 100 ° C, cooled to 70 ° C and dyed for another 40 minutes by adding 20g / l of sodium carbonate. Then, the liquid is discharged, washed with water and hot-washed at 80 ° C. for 3 minutes, 2 g / l of a polycarboxylic acid-based soaping agent, bath ratio 1:40, 5 minutes at 95-100 ° C., washed with water, and dried to finish. The color of both dyes obtained was measured by the SlCOMUC-20 system (manufactured by Sumikahoon Seki Centar) to obtain the color density ratio and corrected color difference of the dye of 6-nylon jersey to cotton dyes. Then, the reaction dyes are classified as described above by the concentration ratio and the correction color difference.

Reaction dyes belonging to class A in this class of reaction salts are dyes in which synthetic polyamide fibers are surely dyed. Solid dyeings of composite or dichroic synthetic polyamide fibers of refractory synthetic polyamide fibers and cellulose fibers Is advantageously applied. Here, the non-staining synthetic polyamide fiber refers to a synthetic polyamide fiber having an absorption rate of less than about 10%, in particular an absorption rate of about 8% or less, and 6,6-nylon having a water absorption of about 7%, 6- of dense tissue. Nylon etc. can be illustrated.

Reactive dyes belonging to class C are dyes that are dyed cotton side,

Composite material of dichroic synthetic or natural polyamide fiber and cellulose fiber,

Less than 0.5% o.w.f

It may be advantageously applied to a synthetic material having a content ratio of synthetic polyamide fibers of 15% or less.

Here, the dichroic synthetic polyamide refers to synthetic polyamide fibers having a water absorption of about 10% or more, and examples of the hygroscopic synthetic polyamide may be exemplified. As a composite material of the dichroic synthetic polyamide fibers and cellulose fibers, the synthetic polyamide may be used. The reversible material which consists of an amide and cotton can be illustrated.

In addition, dyes of both chlorine and light fastness could not be obtained by dyeing cotton alone with commercially available primary color dyes, Navy dyes or black dyes. It can maintain the chlorine fastness (effective chlorine 20ppm) significantly at least 1 grade or more. In addition, cold light can be improved. The same applies to the above polyamide fibers (excellent fastness is obtained), but the present invention exhibits the same excellent effects as described above even in single materials such as polyamide fibers and cellulose fibers.

Dyes belonging to SNCs are dyes in which both synthetic polyamide fibers and cellulose fibers are dyed almost equally, and are suitable for dyeing both sides evenly with the same color. It can also be used as a dye for color adjustment.

The dyes belonging to the SN class are particularly thickly dyed in the synthetic polyamide, and the cellulose fiber side is only slightly dyed, so it is necessary to adjust the color and density of only the synthetic polyamide side.

The dyes belonging to the SC class are significantly darker on the cellulose fiber side and the synthetic polyamide is mostly undyed, which is valuable for adjusting the color and density of the cellulose fiber side.

It is very important to design which combinations of dyes can be used to dye multiple composites in the same color. Proper staining can be readily determined.

Since there has been no such dye selection method so far, it is not possible to take a reliable dyeing procedure to obtain the same color, so there are many troubles, and it is thought that the two-bath two-stage method was inevitable.

In the present invention, the reaction dye selected as described above may be used in combination with other dyes such as acidic metal dyes and the like, and the following advantageous effects can be obtained.

For example, a composite material of polyamide fiber, polyamide fiber and cellulose fiber, in combination with dyes belonging to class A and appropriately selected acidic metal dyes, and dyes belonging to classes C, SN and SC, if necessary 1 bath can be dyed at a low temperature of about 60 to 90 ° C. Examples of very difficult dyeings are, for example, composites from synthetic polyamides which are mostly undyed in reaction dyes, such as shape up pants, which are preferably dyed by this combination. Can be.

Selected acidic metal dyes are soluble in salt baths containing significant amounts of sodium sulfate, solubility is good, less cotton contamination, and important performance is 10g / L sodium carbonate, 70 ℃, 30 minutes dyeing condition. In the treatment, the acid-containing metal dyes that are dyed to the polyamide fibers are not desorbed, and it is preferable that only about 10% or less of them are eliminated. For solubility, solubility of 5 g / L or more at 25 ° C or 50 g / L or more at 80 ° C is required.

The mixing or combination of selected acidic metal dyes and reactive dyes can be arbitrarily determined by the dyeability of the fibrous material, and since the primary dyes having a close dyeing speed cannot be combined in the acidic metal dyes, a single dye or a two-colored primary color is approximated. A combination of dyes and the three primary colors of the reaction dyes is advantageous.

In particular, the mixing of bright yellow dyes, blue dyes and relatively bright red dyes of acidic metal dyes with yellow dyes, blue dyes and red dyes of reaction dyes belonging to class A is a 6-nylon dyeing to improve concentration and clarity. The effect can be obtained. In addition, it is also effective in improving the leveling and wet fastness of the wool.

The present invention is also applicable to a process of dyeing a composite material containing polyacrylic fiber or polyester fiber, in particular, a three-way composite material of synthetic polyamide fiber and cellulose fiber in one bath. The polyester fibers also include recently developed polytrimethylene terephthalate fibers and the like.

It is necessary to perform dyeing with the cation dye or the dispersion dye of these polyacryl fiber and polyester fiber in an acidic bath. Therefore, even when dyed in one bath in combination with a reaction dye, an acid bath is required.                 

Therefore, the selection of an appropriate reaction dye is also based on the classification by dyeability at the time of acid addition. HP and HQ in the classification of the reactive dyes fall under this classification.

 That is, according to the classification method of the reaction dye, in a salt bath containing 50% of 6-nylon jersey (Toressa) and 50% cotton knit (non-silk) in addition to 1% o, wf The color of the obtained dye was measured by the SICOMUC-20 system (manufactured by Sumika Hunseki Co., Ltd.), and classified according to the color density difference and the correction color difference of the 6-nylon resistant dye to the cotton dye.

Dyes belonging to HPs and HQs are particularly suitable for dyeing composite materials such as polyacrylic fibers, polyester fibers and cellulose fibers in the same color in one bath in combination with cation dyes or dispersion dyes dispersed in a salt bath. Do. Preferred dyes for the HQs are those having a concentration ratio of 55 to 95%.

Here, the polyamide fibers are dyes that are rich in HP and lightly dye in HP. When acid is added, many reaction dyes dye the nylon side thickly. In combination with the disperse dye, the dispersion dye is also dyed on the polyamide side. Therefore, in actual dyeing, it is preferable to use a dye that lightly dyes the polyamide side. Mostly.

As the cation dye used here, the dispersed cation dye which does not cause aggregation of dye is preferable. In addition, a reaction dye selected from the A, C, etc. may be used in combination if necessary.

Moreover, as a disperse dye which dyes polyester fiber, the disperse dye which has a high dyeing property and which does not remain in a cellulose fiber, and even if it is partially dyed by synthetic polyamide fiber is especially preferable the disperse dye which has good light fastness. The dye adjusted in one bath of the present invention is used in a single dye or a mixed dye, and a predetermined mixing ratio may be adjusted in the dye bath.

The fastness of the dyeing is important in its commercialization and requires at least wet fastness to withstand domestic washing. It is especially important to endure 30 washes in new products.

As described above, since the order of the dyeing process has an important influence on the wet fastness, it is effective to first dye the synthetic polyamide fibers and finally to dye the cellulose fibers such as cotton.

In other words, the dyeing of the cotton is treated in an alkali bath such as sodium carbonate, which has the effect of removing the dye swelling to contaminate the cotton or undyed dye on the surface of the synthetic fiber. Then, fastness is improved by washing, hot water washing and soaping process. In other words, this process plays a dual role of fixing by chemical bonding of cotton and dyes and removing unnecessary contaminants. If this starts from the reverse dyeing, this effect is not obtained, so even if this procedure is unavoidably adopted, 60 to 70 in a bath consisting of 2 to 10 g / L sodium carbonate and 20 to 100 g / L anhydrous sodium sulfate It is preferable to carry out alkali treatment at about 5 to 30 minutes at < RTI ID = 0.0 >

The following describes the system of the present invention in detail by way of examples. However, the scope of the present invention is not limited to the following examples.

(Example 1)                 

0.5% owf of a mixed dye consisting of 50 parts of Sumifix Yellow 2GL (Sumito Moka Gaku Co., Ltd.), 50 parts of Sumifix Yellow GN (Sumito Moka Gaku Co., Ltd.) Special 50 parts, and Sumifix Brill. 0.5% owf of mixed dye consisting of 50 parts of 150% granule of Blue R (Sumitomogagaku Kogyo Co., Ltd.) and 50 parts of Levafix Royal Blue E-FR (product of Dysta Co.), 6-nylon jersey (Toressa) Staining was carried out at 100 ° C. for 50 minutes using a salt bath containing 20 and 30 g / L anhydrous sodium sulfate. Thereafter, the mixture was cooled to 70 ° C, treated with 30 g of sodium carbonate for 30 minutes, washed with water, washed with water, subjected to normal soaping, washed with water, and washed with water. A clear green dye was obtained, and a clear dye of the same color system was obtained even if the dye concentration was changed to 1/2 and 2 times. And in the wash fastness test by JIS A-2 of these dyestuffs, there was no white cloth contamination at all, and it was very favorable.

(Example 2)

0.5% owf of lanyl Brill. Yellow 3G (manufactured by Sumitomo Chemical Co., Ltd.) 0.5% owf and laynyl Brill.Blue G (manufactured by Sumitomo Kagaku Kogyo Co., Ltd.) extra conc 0.5 In a salt bath with% owf added, 6,6-nylon jersey was dyed and trimmed in the same manner as in Example 1. A clear and thick green dye was obtained. Even if the dye concentration was changed in the same manner as in Example 1, the dye was satisfactorily dyed in the same color system without color breakup. In the laundry fastness test according to JIS A-2 of these dyeings, there was no backpo contamination at all and was very good.

(Example 3)                 

Yellow dye consisting of a mixed dye of Sumifix Yellow 2GL (manufactured by Sumitomo Kagaku Co., Ltd.) 150% gran 50% and Sumifix Gold.Yellow GG (manufactured by Sumitomo Kagaku Co., Ltd.) 150% gran 50% Special 30% Sumifix Brill.Red G (Sumitomoka Gakuko), 150% gran Sumifix Supra Brill.Red GF (Sumitomoka Gakuko), and Sumifix Supra Brill.Red BSF (Sumitomoka Gakuko) ) Red dye consisting of 150% gran 35% mixed dye and Sumifix Brill.Blue R (manufactured by Sumitomo Kagaku Kogyo Co., Ltd.) 150% gran 35%, Levafix Royal Blue E-FR (Dysta Co.) 65% mixed dye Three primary dyes of the blue dye were formed. By arbitrary blending of these dyes, 70 parts of 6,6-nylon jersey and 30 parts of cotton knit (without the silk fabric) were dyed in the same bath as in Example 1. Even if the dye concentration, dye ratio and bath ratio were changed, both fibers were dyed evenly in the same color system. The wash fastness test by JIS A-2 of these dyeings was also very favorable grade 5.

(Example 4)

lanyl Red R (manufactured by Sumitomo Kagaku Kogyo Co., Ltd.) 0.2% owf adjacent to color 0.8% owf (manufactured by Sumitomo Kagaku Kogyo Co., Ltd.) and 0.15% owf of Yellow dye described in Example 3 and Red described in Example 3 In combination with dye 0.85% owf, the shape-up pants, which are composite materials consisting of refractory synthetic polyamide containing 6 and 6-nylon and cellulose fibers, were dyed in the same manner as in Example 1, resulting in a slightly yellowish red color. A dyed product of the same color and solid color was obtained.

(Example 5)                 

Yellow mixed dye consisting of 80 parts of Cibacron Yellow LS-R (product of Chiba Specialty Chemicals Co., Ltd.) and 20 parts of Kayacion Yellow E-SN4G (Nippon Kayaku Co., Ltd.), Cibacron Scarlet LS-2G (product of Chiba Specialty Chemicals) ) 80 parts, Sumifix Supra Scarlet 2GF (Sumitomo Kagaku Kogyo Co., Ltd.) 20 parts of Scarlet series dye and Sumifix HF Blue 2R (Sumito Moka Gakuko Co., Ltd.) 5 parts, Sumifix HF Navy 2G (Sumitomo Kagaku Co., Ltd.) 10 parts), 40 parts Sumifix Supra Blue 2BNF (manufactured by Sumitomo Kagaku Kogyo), 15 parts Sumifix Supra Marine BNF (manufactured by Sumitomo Kagaku Kogyo) and 30 parts Cibacron Blue LS-3R (manufactured by Chiba Specialty Chemicals) Using a blue mixed dye as a three-color dye, 30 parts of 6-nylon jersey and 70 parts of cotton knit (without the silk fabric) were added and dyed for 40 minutes at 100 ° C. with 40 g / L of anhydrous sodium sulfate in the same bath. Thereafter, the mixture was cooled and treated for 40 minutes by adding 20 g / L of sodium carbonate at 70 ° C. Using this trichromatic dye, both fibers could be dyed in the same color system from a light color of 0.3% o.w.f to a rich color of 3% o.w.f and a wide color range of Olive, Brown, and Violet.

The fastness of the obtained dyed product was extremely good in all of the washing fastness according to JIS A-2, the light fastness of 20 hours, the fast light fastness, and the chlorine fastness.

In addition, yellow dye 0.5% owf, Scarlet dye 0.5% owf and Blue dye 0.5% owf of the three primary dyes, as a result of dyeing a composite material consisting of 15% synthetic polyamide dye, 85% cotton under the same dyeing conditions, Dyeing of both fibers was almost equal in density and color and excellent in color.                 

In addition, only the primary color dye belonging to class A dyes the synthetic polyamide very darkly, and even if the color is similar, no uniform dyeing is obtained.

(Example 6)

1% owf of Sumifix Supra Blue 2BNF (manufactured by Sumitomo Chemical Co., Ltd.) belonging to Class C, 0.2% owf of Cibacron Blue LS-3R (manufactured by Chiba Specialty Chemicals Co., Ltd.), and mixed blue dyes belonging to class A of Example 3 0.7 50 parts of 6-nylon jersey and 5 parts of cotton knit (without threading) were added in the same bath by adding 40 g / L of anhydrous sodium sulfate in a same bath for 35 minutes at 85 ° C. The solution was treated at 35 DEG C for 35 minutes by adding 15 g / L of sodium carbonate. Both fibers are then dyed very firmly in the same color, enabling low temperature short time dyeing of synthetic polyamide fiber composites.

(Example 7)

With 0.5% owf of each of the mixed trichromatic dyes described in Example 5, a test dye was stained on a beaker scale of a reversible composite material having a surface-absorbent synthetic polyamide and a back side on the surface, and the surface synthetic polyamide was significantly yellowish. It was stained. Therefore, when 0.1% o.w.f of Kayacion Yellow E-SN4G (manufactured by Nippon Kayaku Co., Ltd.), which belongs to SC, was added and dyed, both fibers were dyed in the same color, and color adjustment in one bath was possible. Until now, this color correction was very difficult.

(Example 8)

Polytrimethylene terephthalate (PTT, Asahi Kaase Corporation) which is polyester fiber with Reanova Navy CA (product of Daista Corporation) 1.6% owf belonging to HQ, Sumifix Supra Marine BNF (product of Sumitomo Kagaku Kogyo) 0.4% owf 33.3 parts, 6-nylon jersey (Toressa) 33.3 parts and cotton knit (without thread) 33.3 parts in the same bath, heated by adding 30 g / L anhydrous sodium sulfate and 1% owf and dyeing at 95 ° C. for 50 minutes Thereafter, the mixture was cooled to 70 ° C and dyed for 40 minutes by adding 10 g / L of sodium carbonate. After washing with water and washing with water twice at 80 DEG C, normal soaping and washing with water were finished. All three colors were dyed in the same color system, and one bath dyeing of the composite material was possible.

By the dyeing system and the dyeing method of the present invention, dyeing of a composite material composed of almost all fibers, in particular, conventionally, sufficient dyeing is performed even if two (two-bath method) and three (three-bath method) dyeing are performed in order. Even when it is not obtained, even a complicated and difficult dyeing can be performed at once (one bath method) with high quality and high color fastness.

As it is possible to dye one bath method, it is possible to reduce dyeing waste water, save energy and save energy than conventional two bath two-stage dyeing method. Cost savings and about 40% time savings can be achieved, and the economic effects are numerous.

Moreover, all the fastnesses of the dyeings according to the invention in one bath mode are very good. That is, in the two-bath method, the polyamide fiber and the acid dye are ionically bonded, whereas in the one-bath method of the present invention, the reaction dye is chemically bonded (covalently bonded) to the amino group of the polyamide fiber, thereby improving all the fastnesses. Contribute. In particular, at the end of the dyeing step, when the alkali treatment is performed to remove unnecessary contaminants, the washing fastness is greatly improved. Therefore, the present invention is of great innovative and practical value.

Claims (16)

As a dyeing method for dyeing a single material made of synthetic polyamide, When cellulose fiber and synthetic polyamide fiber were dyed without adding sodium sulfate in the same bath, When the dyeing ratio of the dyeing ratio of the synthetic polyamide fiber to the cellulose fiber is 150 to 600% and the correction color difference is other than Black, 5.0 or less, and the black is 8.0 or less, One or two or more reaction dyes selected from dyes belonging to class A are used for the dyeing agent, and A dyeing method using a reactive dye, characterized in that all the dyes used are dissolved in one bath to dye the material. As a dyeing dyeing method for dyeing a composite material containing a material selected from synthetic polyamide and a material selected from cellulose fibers, When cellulose fiber and synthetic polyamide fiber were dyed without adding sodium sulfate in the same bath, If the dyeing ratio of the synthetic polyamide fiber to the cellulose fiber is 150-600%, and the correction color difference is other than Black, the dye of A or less is 5.0 or less and 8.0 or less is black. When the concentration ratio is 85% or less and the color difference of correction is other than Black, 5.0 or less, and Black, 8.0 or less, dyes with Class C One or two or more reaction dyes selected from dyes belonging to class A or C, or both are used for the dyeing agent, and A dyeing method using a reaction dye, characterized in that all the dyes used are dissolved in one bath to dye the composite material. The method of claim 2, In the composite material, the ratio of the material selected from synthetic polyamide is larger than the ratio of the material selected from cellulose fibers, The synthetic polyamide is a synthetic polyamide having a water absorption of less than 10%. To the subject of dyeing, Consisting mainly of reaction dyes belonging to class A, or A dyeing method using a reactive dye, characterized in that a mixed dye of A and C is mainly used. The method of claim 2, In the composite material, the ratio of the material selected from synthetic polyamide is equal to or less than the ratio of the material selected from cellulose fibers, Or the synthetic polyamide in the composite material is a synthetic polyamide having a water absorption of 10% or more. To the subject of dyeing, Consisting mainly of reactive dyes belonging to class C, or A dyeing method using a reaction dye, characterized in that the main agent is a mixed dye of A and C. As a dyeing dyeing method for dyeing a composite material containing a material selected from synthetic polyamide, a material selected from cellulose, and a material selected from polyacrylic and polyester fibers, When cellulose fiber and synthetic polyamide fiber were dyed without adding sodium sulfate in the same bath, When the dyeing ratio of the dyeing material of synthetic polyamide fiber to cellulose fiber is 50-120%, and the correction color difference is other than Black, it is 5.0 or less and Black is 8.0 or less. One or two or more reaction dyes selected from dyes belonging to HQ are used for the main agent of dyeing, and A dyeing method using a reaction dye, characterized in that all the dyes used are dissolved in one bath to dye the single material or composite material. 6. The method according to any one of claims 1 to 5, The measurement of temperature ratio and correction color difference, The 6-nylon jersey and the untreated cotton were infiltrated in boiling water at a weight ratio of 50% each, dehydrated, and then dehydrated. With 2.0 ~ 10.0% o.w.f of dye, 49-80 g / L of anhydrous sodium sulfate added dye in a salt bath with a pH of 6.3 to 7.0, or in addition to 1% o.w.f of acetic acid, A dyeing method using a reaction dye, characterized by measuring the color of the obtained dyeing product. The method according to claim 1 or 2, The synthetic polyamide is a synthetic polyamide fiber having a water absorption of 10% or more in a single material composed of the above-described synthetic polyamide or a material selected from synthetic polyamides. As a main agent of dyeing, using reaction dye belonging to class A Dyeing method using a reaction dye, characterized in that the dyeing is carried out at a temperature range of 40 ~ 90 ℃. The method of claim 2, In the composite material, the proportion of the material selected from the synthetic polyamide is 15% by weight or less, A dyeing method using a reaction dye, characterized in that for the main body of the dye, a reaction dye belonging to class C is used. The method of claim 8, In the composite material, the synthetic polyamide dyeing method using a reaction dye, characterized in that the synthetic polyamide fibers having a water absorption of 10% or more. The method of claim 4, wherein Dyeing is less than 0.5% o.w.f, A dyeing method using a reaction dye, characterized in that for the main body of the dye, a reaction dye belonging to class C is used. The method of claim 1, Among the above single materials, the synthetic polyamide in the material selected from the synthetic polyamide is a synthetic polyamide having a water absorption of less than 10%. The dye to use for dyeing is, Solubility at 25 ° C is at least 5 g / L, or at 80 ° C is at least 50g / L, and After dyeing to synthetic polyamide fibers in an acid-containing metal dye that does not drop off from the synthetic polyamide fibers even after 30 minutes in anhydrous sodium sulfate 30g / L, sodium carbonate 10g / L, temperature 70 ℃, bath ratio 1:20 salt bath conditions Dyeing method using a reaction dye, characterized in that it comprises one or more selected. The method of claim 3, wherein The dye to use for dyeing is, Solubility at 25 ° C is at least 5 g / L, or at 80 ° C is at least 50g / L, and After dyeing to synthetic polyamide fibers in an acid-containing metal dye that does not drop off from the synthetic polyamide fibers even after 30 minutes in anhydrous sodium sulfate 30g / L, sodium carbonate 10g / L, temperature 70 ℃, bath ratio 1:20 salt bath conditions Dyeing method using a reaction dye, characterized in that it comprises one or more selected. The method of claim 5, The dye to use for dyeing is, Disperse cationic dyes, disperse cation dyes in salt baths, or good dyeing properties, good coloration in dyeing composite polyamide fiber and cotton composites, less cotton contamination and synthetic polyamide Dyeing method using a reaction dye, characterized in that it comprises one or two or more selected from dyes having good light resistance by dyeing to fibers. The method according to any one of claims 1, 2, 3, 4, 5, 8, 9, 10, 11, 12, 13, The dye used for the dyeing is a dyeing method using a reaction dye, characterized in that the three primary dyes, Navy dye or Black dye. The method according to any one of claims 1, 2, 3, 4, 5, 8, 9, 10, 11, 12, 13, When cellulose fiber and synthetic polyamide fiber were dyed without adding sodium sulfate in the same bath, SNC is a dye having a concentration ratio of synthetic polyamide fibers to cellulose fibers of 85 to 135% and a correction color difference of 5.0 or less for black and 8.0 for black. Dyes having a concentration ratio of 600% or more and a correction color difference of 3.0 or less as SNs, and When dyes with a density ratio of 30% or less and a correction color difference of 3.0 or less are used as SCs, The dye used for dyeing further includes a dyeing method using a reaction dye, characterized in that it comprises a dye for adjustment selected from SN, SNC and SC. For 6-nylon jersey and unthreaded cotton knits, add a salt bath of pH 6.3 to 7.0 with 40 to 80 g / L sodium sulfate or 40 to 80 g / L sodium sulfate at a weight ratio of 50% each. After dyeing in a dye bath added with owf, the color of the resultant dye is measured, and the color density ratio and correction color difference of the 6-nylon blocking dye to the cotton dye is calculated, and the reaction dye is classified by the concentration ratio and the correction color difference. Classification of reactive dyes by