JPS5936788A - Post-treatment of cellulosic fiber dyed fabric - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for post-treatment of dyed cellulose fibers.
More specifically, the present invention involves post-processing a dyed product obtained by dyeing cellulose fiber or a fiber material consisting of cellulose fiber and other fibers with a reactive dye or a direct dye to improve wet fastness and other properties. The present invention relates to a method for improving color fastness.

As a conventional method for improving the wet fastness of dyed products, there is a method of using a wet fastness enhancer, and many enhancers have been announced and used.

Examples include formalin-based condensed resins obtained by condensing formalin and dicyandiamide, etc., condensed resins obtained by condensing polyalkylene polyamines and dicyandiamide, etc., and water-soluble cationic resins obtained by reacting secondary amines with shrimp halohydrin. There is a drug.

[7] There are advantages and disadvantages in the performance of these enhancers, for example, formalin-based condensed resin type enhancers have poor wet fastness, discoloration due to processing, and ++V problems in light fastness.

In addition, polyamine resin type enhancers, which have the problem of Z2N disorder due to residual formalin, provide high wet fastness, but have problems with discoloration due to processing and light fastness. In addition, there is a problem with discoloration (chlorine fastness) due to chlorine ions contained in tap water and pool water.Due to the water-soluble cationic resin type enhancer, discoloration due to treatment and light fastness are good, but wet fastness is poor. (especially sweat fastness) is weak and chlorine fastness is also insufficient.
).

The present inventors have provided good wet fastness, no discoloration due to processing, decrease in light fastness, and salt resistance of 5'l! 2ii with fewer problems such as a decrease in degree! As a result of intensive research to obtain moist, solid and good soil/'ilJ, the present invention was made: l'11.
・That is, the present invention uses at least two types of copolymers obtained using one monomer unit selected from the following monomer units, or at least two types of polymers obtained from individual monomer units. This is a method for post-treatment of dyed cellulose fibers, characterized by L, when dyed cellulose fibers dyed with reactive dyes or direct dyes are post-treated with an aqueous solution of hardware.

(I) 4 (In the above formula, R1112 is the same or different and is H or CH3
wo table was R3, R, same or phase 7 is different OH3.

02H5 group or a halogen atom. )4 (In the above formula, R1, R2, R3, R4 are the same as formula ('I), and X represents CH30S O3+ HOS 03.)
[Tax] (1 in the above formula (represents 1 digit H or OH3, R2+ "3
+ 14 are the same or different and represent OH3 or 02H5, X is a halogen atom, O, H3OSO3, 0211
50803 or represents an organic acid or inorganic acid, n represents an integer from 2 to 50) [1v] Organic acid or inorganic acid salt of vinyl group-containing heterocyclic amine, or ammonium salt quaternized with a quaternizing agent 0 In the present invention, the compound having formula [1] includes diallylamine and an alkyl halide (for example, methyl chloride) in the presence of an inorganic alkali (for example, caustic soda).
Also, direct reaction of l'i secondary amine (e.g. dimethylamine) and allyl halide (k, er, L allyl chloride), reaction of N-methyldiallylamine and alkyl-containing lide (e.g. methyl chloride), etc. The compound having O formula (1) obtained by a known method can be obtained by a reaction between diallylamine or N-methyldiallylamine and a dialkyl sulfate (for example, dimethyl sulfate).

Compounds of formula (Ill) include dialkylamine ethyl (meth)acrylates (eg dimethylaminoethyl methacrylate) and alkyl halides (eg methyl chloride), dialkyl sulfates (eg dimethyl sulfate) or organic acids ( For example, acetic acid) or an inorganic acid (for example, hydrochloric acid).

(IV) is a vinyl group-containing heterocyclic amine, and C is 2-
Vinylpyridine, 8-vinylpyridine, 4-vinylpyridine, N-vinylpyrrolidone, 1-vinylimidazole, l-vinyl-2-methylimidazole, 1-vinyl-
Examples include 2-phenylimidazole; acids used to form oxidized salts include organic acids such as acetic acid, formic acid, and butyric acid; inorganic acids such as hydrochloric acid, sulfuric acid, and nitric acid;
Examples include methyl chloride, methyl bromide, dimethyl sulfate, diethyl sulfate, benzyl chloride, and ethylene chlorohydrin.

In the present invention, at least 2 +;;t monomers selected from monomer units represented by (1) to [1v].

A copolymer obtained using one unit of monomer and a polymer of one unit of each monomer used for blending can be produced by a conventionally known method. Further, the reaction ratio of each monomer in the production of the copolymer can be set at any desired ratio, and the ratio of the polymer of one unit of each monomer can also be set at any desired ratio.

As a method for post-processing dyed products using the product of the present invention, conventionally known methods can be used as appropriate. For example, a method in which a dyed product is immersed in an aqueous solution containing 0.5 to 5% of the product of the present invention dissolved in the dyed product at a predetermined temperature for a predetermined time and then dried. Or, with an aqueous solution containing 0.5 to 5% by weight of the product of the present invention, pad processing deviation is good. In the case of dipping treatment, is the bath ratio (dyed material: water) normal?
Itl; 101:30 and the temperature is usually 20:30.
℃ to 70''C, and the processing time is 5 to 20 minutes.

Dyed products F and L treated as above? ! The color fastness has been significantly improved, resulting in an excellent product with no discoloration due to processing and no decrease in light fastness or chlorine fastness.

The present invention will be explained in detail below with reference to examples.

Synthesis Example 1 Dimethyldiallylammonium chloride 2 in the reaction vessel
00 g, 120 g of dimethyldiallylammonium sulfate, 8 Qg of methacryloyloxyethyltrimethylammonium chloride, and 267 g of water were added and stirred to uniformly dissolve.

Next, in the presence of 4 g of potassium persulfate, a stirring reaction was carried out at 80 to 85°C for 4 hours while passing through nitrogen gas, and then
9 g of water was added and mixed uniformly to obtain a 20% aqueous solution with a yellow transparent glaze having a kinematic viscosity of 25.8 centistokes (40° C.).

Synthesis Examples 2 to 5 The copolymer was subjected to VtI in the same manner as in Synthesis Example 1, except that the reaction ratio (weight ratio) of the hexamer used in the copolymerization was changed as shown in Table 1 below. Not shown in Table 1. Margins below [Table 1]
Add 0g and 267g of water and stir to dissolve uniformly.

Next, a stirring reaction was carried out at 80 to 85°C for 4 hours while passing nitrogen gas in the presence of 4 g of potassium persulfate.
9 g of water was added and mixed uniformly to obtain a 50% aqueous solution with a yellow and transparent viscous consistency.

Synthesis Examples 7 to 9 A colorless to slightly yellow transparent viscous liquid was obtained in the same manner as in Synthesis Example 6, except that the monomers used and the solid content of the polymerization system were different as shown in Table 2 below.

The results are shown in Table 2.

-1 Margin Formulation Examples 1 to 5 The polymers obtained in Synthesis Examples 6 to 9 were mixed at different mixing ratios as shown in Table 8 below, and diluted with water to form 20% aqueous crystals.

[Table 3] Test Example 1 The dye fastness was tested when the product of the present invention was applied to cotton No. 41 dyed with a reactive dye.

1-1) Dyeing: Pure knitted fabric was dyed using the following reactive dye according to a conventional method at °C, washed with water, and dried.

Dye (1) Remazol Brilliant Red BB8%
o0w, f (Hoechst Co., Ltd. Reactirve Red 21) Dye (
2) At-TR-E 3% o
, w, f (manufactured by Ciba Geigy, Inc. 0 Reactive Blue 52) 1-2)
Fastness enhancer treatment * The inventive product and the comparative product were used in an amount of 8% based on the weight of the dyed product, and after treatment at 60°C for 20 minutes at a bath ratio of 1:20, washed with water,
Dry.

1-8) Test evaluation method a) Compare the hue fastness enhancer-treated fabric and the dyed original fabric with the naked eye, and judge the series using a gray school for discoloration and fading.

b) Washing fastness test J Eng s-h, -0844A-4 method Using cotton knitted cloth and silk habutae as the attached white cloth, the degree of contamination was evaluated using a gray scale for contamination.

C) Sweat fastness test Test for alkaline sweat according to method J Engineering 5-L-Q848A ◇ Using cotton knitted cloth and silk habutae as the attached white cloth,
The degree of contamination is determined by the contamination gray scale R@ size) Chlorine fastness Effective chlorine concentration 20 ppm (using hypochlorous acid soy),
A test piece was immersed in an aqueous solution containing 0.1 g/l of sodium laurylbenzenesulfonate at a bath ratio of 1:200 at room temperature for 2 hours, and the degree of discoloration and fading of the test piece was evaluated using a gray school for discoloration and fading.

θ) Light resistance test piece was exposed to light at 68°C for 20 hours using a 7-ade-o-meter, and the degree of discoloration and fading was evaluated using a gray scale for discoloration and fading.

Margin Test Example 2 Dye fastness 1 was tested when the product of the present invention was applied to cotton cloth dyed with a direct dye.

2-1> Dyeing 4 pieces of cotton broadcloth were dyed using the following direct dye according to method ') ii, washed with water, and dried.

Dye (1) Kayaras Subra Scarlet BIIL
200 1% o, w, f (cLD manufactured by Nippon Kayakurei)
trect Red 89) Dye (2) Kayarasu Supra Blue BWL1481% o, w, f (Nippon Kayaku Co., Ltd. C engineering 1) directBlue 28?
) 2-2) Treatment with fastness enhancer Mi The products of the present invention and comparative products were treated in an amount of 3% based on the weight of the dyed product at a bath ratio of 1:20 at 50° C. for 15 minutes, followed by washing with water and drying.

2-3) Test evaluation method a) Hue Same as Test Example 1.

b) Washing fastness test J Engineering 5-L-0844A-2 method b ≦ 1 Using silk habutae in pure gold as its own weight, the degree of contamination was determined by a series using a contamination gray scale.

0) Hot water fastness test J Engineering 5-L-0845A-4 Method Pure gold medium as attached white cloth,
Using silk habutae, the degree of contamination was evaluated using a gray scale for total contamination.

d) Light fastness Same as test example 1 Below margin 2-4) Test results (Note) For (b) and (c) in the above table, the contamination series in the pure gold used as white cloth is shown in the attachment.

*Comparative product A: Commercial product whose main component is a condensate of dimethylamine and epichlorohydrin 0 *Comparative product B: Commercial product whose main component is a thermal condensate of diethylenetriamine and dicyandiamide 0 Post-treated with the product of the present invention as described above The resulting dyed product has excellent wet fastness, no discoloration due to processing, and no decrease in light fastness or chlorine fastness.

Margin below

Claims (1)

[Scope of Claims] 1) A dyed product of cellulose fiber or a fiber material consisting of cellulose fiber and other fibers using a reactive dye or a direct dye, represented by the following (1), (11), (l) and (b). A dyed product characterized in that it is post-treated with a copolymer of monomers selected from at least two groups of monomers, or a mixture of homopolymers of said monomers. Post-processing method. 4 (In the above formula, R1 and Rg are the same or different and are H or O
H3 is represented, R3 and R4 are the same or different and represent OH3 or 02 n6 , and X represents a hapgen atom. ) (R1+ R2+ “3.”4 id in the previous formula
Same as formula (1), X is “30 S 03 r HO
represents S 03 . ) (In the above formula, H is H or tit
0143, "j' H37H4 are the same or different and represent OH3 or Gl, 285, X is /%0
Gen atom, 01130803, 02H50SO351
Kay @I! , represents an inorganic acid, and n represents an integer of 2 to 5. ) ([V) An organic acid or inorganic acid salt of a vinyl group-containing my-ring amine, or a quaternary ammonium salt quaternized with a quaternizing agent.