JP2002285475A - Color deepening agent and method for color deepening processing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To industrially advantageously process and produce a textile product having excellent durability and a high level of color depth at a low cost. SOLUTION: This method for color deepening processing of the textile product comprises treating the dyed textile product with an aqueous dispersion obtained by polymerizing an ethylenically unsaturated monomer having epoxy group in the presence of an aqueous polyurethane surfactant, a fluorine aqueous dispersion containing perfluoroalkyl groups and a reactive silicone aqueous dispersion having amino groups, etc. Thereby, the textile product can industrially advantageously be processed and produced as the textile product having excellent durability and the high level of color depth at the low cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for deep-coloring dyed textiles, and more particularly, to a method for improving the coloring of dyed textiles, and having excellent deep-coloring and sharpness. Related to deep color processing.

[0002]

2. Description of the Related Art In recent years, in the field of sports clothing and the field of black formal wear, there has been a strong demand for the development of textile products having excellent deep color and sharpness from the viewpoint of water repellency and fashionability. The deep color processing of dyed textiles is based on the finding that wet dyed fabrics appear darker and more vivid than when dry, and are generally treated with a lower refractive index (closer to the refractive index of water) textiles. Is performed.

There have been proposed several deep color processing agents and methods for this purpose (for example, Japanese Patent Publication No.
53474, Japanese Patent Publication No. 61-35309, Japanese Patent Publication No. 24918, Japanese Patent Publication No. 4-28834, etc.).

[0004]

SUMMARY OF THE INVENTION The present inventors have made various studies on means for improving the color depth of dyed fiber products, and as a result, have reached the present invention. The present invention provides a deep-coloring agent and a deep-color processing method which are excellent in durability against various demands of textile products.

[0005]

SUMMARY OF THE INVENTION The present inventors have developed an industrially advantageous and inexpensive deep-color processing method for finishing dyed textile products into finished products having excellent deep color and sharpness. As a result of diligent studies for the purpose, this time, an aqueous dispersion obtained by polymerizing an ethylenically unsaturated monomer having an epoxy group in the presence of an aqueous polyurethane surfactant, containing a perfluoroalkyl group It has been found that the above object can be achieved by treating a fluorine-based aqueous dispersion and a reactive silicone aqueous dispersion having an amino group or the like as a treatment agent, and have completed the present invention.

Thus, according to the present invention, an aqueous dispersion obtained by polymerizing a dyed textile product with an ethylenically unsaturated monomer having an epoxy group in the presence of an aqueous polyurethane surfactant, The present invention provides a method for deep-color processing of textiles, which is characterized by being treated with a fluorine-based aqueous dispersion containing an alkyl group and a reactive silicone aqueous dispersion having an amino group and an epoxy group.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. Aqueous dispersion (X) obtained by polymerizing an ethylenically unsaturated monomer having an epoxy group in the presence of the aqueous polyurethane surfactant (A) used in the present invention, a fluorine-based material containing a perfluoroalkyl group Aqueous dispersion (Y) and reactive silicone aqueous dispersion having an amino group (Z)
Has a structure as shown below.

[0008]

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[0009]

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[0010]

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[0011]

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As the main chain raw material (P1) of the aqueous polyurethane surfactant (A) used in the present invention, a polyether compound can be used.

Compounds containing two or more active hydrogen groups (Y1)
Examples include amines, such as ethylenediamine, diethylenetriamine, and triethylenetetraamine.

As the isocyanate compound (X1),
Isocyanate compounds represented by triresin diisocyanate and polyphenyl polymethyl polyisocyanate are exemplified.

As the aqueous dispersion (X) obtained by polymerizing the ethylenically unsaturated monomer having an epoxy group used in the present invention, a radically polymerizable compound is used, for example, butyl acrylate, ethyl acrylate, Esters of α-β unsaturated carboxylic acids such as ethoxyethyl acrylate, isopropyl methacrylate, n-butyl methacrylate, n-hexyl methacrylate and methyl methacrylate are mainly used.

Glycidyl methacrylate or the like is used as a secondary component as a radical polymerizable compound to which an epoxy group is added.

The polymerization catalyst used for radical emulsion polymerization of the aqueous dispersion (X) obtained by polymerizing the above-mentioned ethylenically unsaturated monomer having an epoxy group includes:
Preferred representative examples include azobis-based initiators such as 2,2'-azobis (2-aminodinopropane) hydrochloride and azobiscyclohexanecarbonitrile.

The fluorine-based aqueous dispersion (Y) containing a perfluoroalkyl group used in the present invention generally contains a fluorine-containing water- and oil-repellent-type fluorine-free water- and oil-repellent-free type. Polymers are included.

The content of the perfluoroalkyl group-containing monomer component in the copolymer of another unsaturated monomer copolymerizable with the perfluoroalkyl group-containing polymerizable unsaturated monomer is determined by the amount of the copolymer. Generally 10 to 90% by weight, based on the weight of the coalescence,
Preferably, it is in the range of 30 to 80% by weight.

The reactive silicone aqueous dispersion (Z) having an amino group and the like, as R5 representing a functional group, those having reactivity such as an amino compound such as CH3 or (CH2) pNH (CH2) qNH2 are exemplified. Can be Needless to say, compounds having at least two or more functional groups at both molecular terminals and side chains can be listed.

As for the molecular weight of the aqueous reactive silicone dispersion (Z) having an amino group or the like, the one based on a dimethyl silicone chain is preferable from the viewpoint of cost and the like as described above.

The reactive silicone aqueous dispersion (Z) having an amino group or the like has a molecular weight of 800 to 800 as an average molecular weight.
0 is more preferable, and more preferably 1500 to 60
00.

In the present invention, (A) and (X)
The reason why the coexistence of the four different resin components (Y) and (Z) exerts a remarkable effect on the improvement of the deep color is considered as follows. That is, when each of the low-refractive-index resins is treated alone, the low-refractive-index film forms only a uniform continuous layer on the fiber, whereas when a plurality of components coexist, the properties are It is considered that the core resins having different resin forming abilities form films in different states at the time of film formation by the drying treatment, and as a result, a low refractive index film having a very complicated shape is formed on the fiber.

The total resin content of these resin components in the deepening solution is 0.1 to 15%, preferably 0.5 to 1%.
0%, more preferably 1 to 8%. When the total resin content is less than 0.5%, the deep color effect is not sufficient,
If it exceeds 15%, it is difficult to control the viscosity of the processing solution, and the processing load of the deepening process increases.

In the present invention, (A) and (X)
In addition to the essential components (Y) and (Z), an antistatic agent, a penetrant, and a crosslinking agent for a reactive functional group can be blended within a range that does not impair the effects of the present invention.

The essential components (A) and (X), (Y),
The mixing of (Z) with a crosslinking agent, an antistatic agent and a penetrant must be performed with great care, and in particular, mixing of a cationic substance and an anionic substance must be avoided from the viewpoint of bath stability. Must.

In the processing method of these compounding liquids such as resin, the dyed fiber product is preferably immersed in a processing liquid or applied by a padding method, and after application, drying and heat treatment are performed.

Drying is carried out at 80 to 100 ° C. for a few minutes to remove water, and heat treatment is preferably carried out at 90 to 130 ° C. for several minutes. Excessive heating will impair the deep color effect. That is, it is considered that the low refractive index film formed on the fiber in a very complicated shape is broken. Drying and heat treatment can be carried out for both.

In the present invention, (A) and (X)
The total total adhesion amount of each of the essential components (Y) and (Z) is preferably from 0.1 to 10% by weight owf with respect to the fiber weight.

[0030]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to the production examples and examples unless departing from the gist thereof.

In the following examples, "%" and "part" are based on weight.

Example 1 204.7 parts of polyoxytetramethylene ether glycol (having a hydroxyl value of 54.8), 102.6 parts of methyl ethyl ketone, and 80 of 2,4-tolylene diisocyanate and 2,6-tolylene diisocyanate: In a round bottom flask equipped with a stirrer and a thermometer, 34.8 parts of the mixture of No. 20 was reacted at 80 ° C. for 3 hours to obtain a urethane polymer solution containing 2.45% of free isocyanate groups.

In another flask, 268.2 parts of methyl ethyl ketone and 4.73 parts of diethylenetriamine were added and uniformly mixed. To this, 133.9 parts of the urethane prepolymer solution was added dropwise over 2 hours. And reacted at 50 ° C. for 10 minutes to obtain a polyurethaneurea polyamine solution.

Then, a mixture of 5.05 parts of epiclohydrin and 36.6 parts of ion-exchanged water was added to 366.1.
1 part at 50 ° C in addition to
The reaction was continued for an hour, and then 5.8 parts of a 70% glycolic acid aqueous solution and 300 parts of ion-exchanged water were added. Methyl ethyl ketone was distilled off under reduced pressure, and ion-exchanged water was added to adjust the concentration. A homogeneous, stable, low-viscosity aqueous polyurethane surfactant was obtained.

A round bottom flask was charged with 60 parts of the synthesized aqueous polyurethane surfactant, 15 parts of methyl methacrylate, 790 parts of ion-exchanged water, and 0.25 part of 2,2'-azobis (2-amidinopropane) hydrochloride. Next, 120 parts of methyl methacrylate and 15 parts of glycidyl methacrylate were added dropwise over 1 hour at a liquid temperature of 60 ° C., and after completion of the dropwise addition, the mixture was aged for 1 hour to complete emulsion polymerization.

Polyester satin fiber is Kayaron polyester black FM-SF 150% paste (Nippon Kayaku Co., Ltd.)
And 10% owf.

4.0% of a synthesized treating agent having an epoxy group
The dyed cloth was weighed 10 times the amount of the above-mentioned dyed cloth.

The dyed cloth was taken out, squeezed with a mangle at a pickup ratio of 100%, and dried with a hot air drier at 80 ° C. for 10 minutes.

Next, Bathotech FS-40 (Meisei Chemical Co., Ltd.)
2.5%, PORON MF-14E (Shin-Etsu Chemical Co., Ltd.)
It was adjusted to 2.0%, weighed 10 times the amount of the above-mentioned dyed cloth, immersed in the dyed cloth for 10 minutes with stirring.

The dyed cloth was taken out, squeezed with a mangle at a pickup rate of 80%, and dried and heat-treated simultaneously with a hot air drier at 110 ° C. for 10 minutes.

Example 2 A polyester satin fiber dyed in the same manner as in Example 1 was treated in the same manner as in Example 1 with 4.0% of a treating agent having an epoxy group, Vasotech FS-40 (Meisei Chemical Co., Ltd.) And 2.5% of Polon MF-14E (manufactured by Shin-Etsu Chemical Co., Ltd.) and 2.0 times as much as the above-mentioned dyeing cloth, and immersed for 10 minutes while stirring.

The dyed cloth was taken out, squeezed with a mangle at a pickup ratio of 80%, and simultaneously dried and heat-treated with a 110 ° C. hot air drier for 10 minutes.

L value measurement result

[0044]

[Table 1]

Measuring device: Colorimeter ND-1001DP (manufactured by Nippon Denshoku Industries Co., Ltd.)

For fibers other than polyester, those dyed as dark as possible with an appropriate black dye were used.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) D06P 5/20 D06P 5/20 C

Claims (2)

[Claims] An aqueous dispersion obtained by polymerizing a dyed textile product with an ethylenically unsaturated monomer having an epoxy group in the presence of an aqueous polyurethane surfactant, a fluorine containing perfluoroalkyl group A deep color processing method for textile products, comprising treating an aqueous aqueous dispersion and a reactive aqueous silicone dispersion having an amino group or the like. 2. In the above-mentioned processing method, a step of dipping the dyed fiber product by once or dividing the processing liquid, and removing water by pressing and heating and drying the dyed fiber product. And a step of subjecting the treatment liquid to a heat treatment so as to cause a mutual crosslinking reaction and fix the fibers to each other.