SU1456485A1 - Method of dyeing cotton fabrics - Google Patents

Abstract

The invention relates to the field of dyeing and finishing production, in particular, to the method of dyeing cotton fabrics with active chlorotriazine dyes. The invention allows increasing the yield of a mixture of mono- and dichlorotriazinogr dyes on a fiber (from 2.4-4.5 to 5.3-6.7 g / kg separately for active red monochlorotriazine dye 6 ° C; 5, 0-6.5 to 9-10.8 g / kg separately for dichlorotriazine dye active bright orange CC and simplify the technology (reduce the temperature of dyeing with monochlorotriazine dyes from 60 to 70 to 20-25 ° C; dyeing at 20–25 ° C, both di- and monochlorotriazine dyes and reduce the amount of inorganic salt from 40–60 to 15–25 g / l) due to the fact that About padding of fabric is carried out with a composition containing, g / l: mono- and / or dichlorotriazine dye 5-10, sodium nitrate 15.0-25.0, oxalic sodium 1.0-2.0 and 15-25% - aqueous ammonia solution up to 1 l. 4 tab. 1 cl

Description

one

The invention relates to dyeing and finishing production, in particular, to the method of dyeing cotton fabrics with active chlorotriazine dyes.

The invention is an increase in the yield of a mixture of mono- and dichlorotriazic dyes on a fiber and simplifying the technology.

The method is illustrated by the data of Tables 1-4 and the following examples.

Example. Samples mercerized cotton fabric plus at 20 ° C dye composition, g / l:

ten

15

Active bright red 6C (a) or active bright orange CH (b) or a mixture of these dyes in the ratio 1: 1 (c)

Sodium nitrate sodium oxalate

Solvent

As a solvent, use a 15% solution of ammonia in water. Next, the fabric is subjected to heat treatment with hot air at 230 ° C for 60 s, washed and dried according to the regulated regimes. A smooth and intensively colored image of .0 15.0 is obtained

1.0

Up to 1 l

four

SP

05 4

00

ate

1456485

The colors of crimson, orange and red fabrics are characterized by the following content of dyes in the fiber, g cr, / kg ox::. Dye a 5.8 Dye b 8.8 Dye 3.8 (a), 6.3 (b) Example 2, Samples of mercerized cotton fabric are plus with a dye composition solution, g / l:

Active bright red 6C (a) or active bright orange CH (b) or a mixture of these dyes in relation to Itl (c) 10.0

Sodium nitrate 25.0

Sodium oxalate 2.0 Solvent Up to 1 L

As a solvent, use a 25% solution of ammonia in water. Next, the fabric is subjected to heat treatment with hot air at 240 ° C for 90 s, washed and dried according to per lament modes.

Get exactly and intensely colored tissue samples of crimson, orange and red colors, characterized by the following content of dyes in the fiber, g kr, / kg ox: Dye a 11.0 b 16.3

Dye dye in

6.7 (a), 10.8 (

7.5 20.0

1.5 To 1 l

Example Samples of mercerized cotton fabric plus at 22.5 ° C dye composition, g / l:

Active bright red 6C (a) or active bright orange CH (b) or a mixture of these dyes in the ratio 1: 1 Sodium nitrate Sodium hydroxide Solvent

The solvent used is a 20% ammonia solution in water. Next, the fabric is subjected to heat treatment with hot air at 235 C for 75 s, washed and dried according to the regulated regimes.

Samples of crimson, orange and red flowers are obtained exactly and intensively; they are characteristic of; the following content of dyes in the fiber, g cr, / kg.v; Dye

Dye b12, about

Dye B5.3 (a), 9.0 (e

0

25

20

PRI me R 4, Samples of mercerized cotton fabric plus at 17.5 With a dye composition, g / l:

Active bright red 6 C (a) nli active bright orange KX (b) or a mixture of these dyes in the ratio 1: 1 (c) 2.5 Sodium nitrate 10.0

Oxalate sodium0.5

Solvent Up to 1 L

A 10% solution of ammonia in water is used as a solvent, 15 Next, the fabric is subjected to thermal treatment with hot air at 225 C for 45 s, washed and dried according to the regimented regimens.

Samples of crimson, orange and red colored tissue of low intensity are obtained, characterized by the following content of dyes in the fiber, g, cr. / Kg vol .: Dye a2,6

Dye b4,5

Dye b1,8 (a), 2.7 (b)

PRI me R 5, Samples of mercerized cotton fabric are plus at 27.5 ° C dye solution composition, g / l:

Active bright red 6 C (a) or active bright orange KX (b) or a mixture of these dyes in the ratio 1: 1 (c) 12.5 Sodium nitrate 30.0

Oxalate sodium 2.5

Solvent Up to 1 L

The solvent used is a 30% ammonia solution in water. Then the fabric is heat treated with hot air for 105 s, washed and dried according to the regimens.

Fabric samples are unevenly colored due to the 45 instability of the ammonia solution, characterized by the following content of dyes in the fiber, g cr. / Kg vol .: Dye a 6.3-10.2 Dye b 12.7-15.1 Dye b1, 9-3.5a, 4.7-6.76

The color of the samples has a yellowish tint due to thermal decomposition of cellulose at the specified parameters gg heat treatment.

In all examples, characterizing the proposed method, the time of fabric padding was 10 s, the spin after the padding was 100%.

35

50

5145

PRI me R 6. Imagined mercerized cotton fabric is soaked in liquid ammonia for 1 s and plus for 10 s in

aqueous dye solution composition, g / l:

Active bright orange KX (a) or a mixture of this dye with active co-red 6 C in the ratio of 1: 1 (6) - 7.5 Nitrate of potassium 50.0

Next, the fabric is subjected to heat treatment with hot air at 230 ° C for 120 s, washed and dried according to the regulated modes.

A smooth and intensely colored orange sample and a less intensely colored red sample are obtained, characterized by the following content of dyes in the fiber, g cr, / kg ox,:

Dye a 12.6 Dye b 2.4 (a), 6.5 (b) Example, Samples of mercerized cotton fabric are impregnated in liquid ammonia for 1 s and plus at 60 C for 10 s in an aqueous dyeing solution. , composition, g / l:

Active bright red 6 C (a) or a mixture of this dye with active bright orange CC in relation to 1: 1 (b) 7.5 Potassium nitrate 50.0 Next, the fabric is subjected to heat treatment with hot air at 240 C for 90 c, washing and drying by re

glamorous modes.

A smooth and intensely colored crimson sample and a less intensely colored red sample are obtained, characterizing the gyes with the following dye content in the fiber, g cr, / kg ox,:

Dye a 7.8 Dye b 4.5 (a), 5, O (b) PRI me R 8, Samples of mercerized cotton fabric are plus at 20 with a dye solution of composition g / l:

Ostasin golden yellow HR (a) or active bright blue CX (b) or a mixture of these dyes in the ratio 1: 1 (c) 5, C Sodium nitrate 15.0

are

P sodium sulfate 1, C Solvent Up to 1 L

As a solvent, use a 15% solution of ammonia in water. Next, the fabric is subjected to heat treatment with hot, air at 230 s for 60 s, washed and dried according to regulated conditions.

Get exactly and intensely colored fabric samples of yellow, blue and green colors, characterized by the following content of dyes in the fiber, g kr, / kg ox,: Dye a 8.5 Dye b 7.0 Dye 5.2 (a) 5.0 (b) PRI me R 9, All by analogy with example 8, except that dyes were used: active blue 43 (a) or active red 5 CX (b) or their mixture in the ratio 1: 1 (c) An evenly and intensely colored tissue samples of greenish blue, crimson and brown are obtained, characterized by the following dye content. her fiber, g cr, / kg ox:

a b c p

ten.

7.0 9.0

4.9 (a), 6.4 (b) Samples of mercerizo5 0

A bath of cotton fabric is added at 25 ° C with a dye composition, g / l:

Ostasin golden yellow HR (a) or active

bright blue KH or

mixture of these dyes in

the relation 1: 1 (v)

Sodium nitrate

Oxalate sodium

Solvent

10.0 25.0 2.0

Up to 1 l

A 25% ammonia solution in water is used as a solvent. Next, the fabric is subjected to heat treatment with hot air at 240 ° C for 90 s, washed and dried according to the regulated regimes. Obtain 0 exactly and intensely colored tissue samples of yellow, blue and green colors, characterized by the following content of dyes in the fiber, g cr, 7 kg ox,: 5 Dye and 12.5

10.2

Dye and Dye b Dye in Sample

eleven

9.0 (a), 7.5 (b) All by analogy with

example 10, except that using 71A56485

the dyes were yawned: active blue 43 (a) or active red 5 CX (b) 1-: whether their mixture is 1: 1 (c)

Greenish-blue, crimson and brown fabrics are obtained, which are characterized by the following content of dyes in the fiber, gcr / kg ox: 10

The dye and 10.3. The dye b 13,4

The dye in 7.4 (a), 9.5 (b)

PRI me R 12, Imagine mercerizo, 5

eight

Ostasin golden yellow HR (a) or active bright blue CX (b) or a mixture of these dyes in the ratio 1: 1 (c)

Sodium nitrate 10.0

Sodium oxalate 0.5 Solvent Up to 1 L

As a solvent, a 10% solution of ammonia in water is used. Next, the fabric is subjected to heat treatment with hot air at 225 s for 45 s, washed and dried according to the prescribed cotton fabric, plus 15 modes. Get a little 7,5 20,0

1.5 To 1 l

25

at 22.5 ° C dye solution composition, g / l:

. The remains are golden yellow KR (a) or active blue CX (b) or a mixture of 20 of these dyes in the ratio of 1: 1 (c) Sodium nitrate Sodium oxalate Solvent A 20% solution of ammonia in water is used as a solvent. Next, the fabric is subjected to heat treatment with hot air at 235 ° C for 75 seconds, washed, and dried according to the regimen. Get exactly and intensely colored fabric samples of yellow, blue and green colors, characterized by the following content of dyes in the fiber, g cr. / Kg vol .:

intensely colored fabric samples of yellow, blue and green colors, characterized by the following content of dyes in the fiber, g cr, / kg vol .:

Dye a

Dye b

Dye in

e p 15,

3.8

3 4

 (a) 2.1 (b)

All by analogy

35

Prim

with example 14, except that dyes were used: active blue 43 (a) or active red 5 CX (b) or their mixture in relation to

1: 1 (in)

Fabrics of greenish-blue, crimson and brown colors are obtained, which are low-intensity, and are characterized by the following content of dyes in the fiber, gcr./kg ox .:

Dye a

Dye b

3.0 4.2

10.9

e, b

7.4 (a), 6.2 (b) All by analogy with

Dye a

Dye b

Dye in

Ex. 13, All by analogy with pre-example 12, except that dyes were used: active blue 43 (a) or active red 5 CX (b) or your mixture in a ratio of 1: 1 (c). 45

Smooth and intensely stained tissue samples of greenish blue, crimson and brown colors are obtained, characterized by the following content of dyes in the fiber:.;. g cr. / kg vol .:

9.1, 11.4

6.2 (a), 8.0 (b) 55 14. Figured mercerized cotton fabric plus at 17.5 ° C dye composition, g / l:

Dye and Dye b Dye in Sample

2.5

eight

Ostasin golden yellow HR (a) or active bright blue CX (b) or a mixture of these dyes in the ratio 1: 1 (c)

Sodium nitrate 10.0

Sodium oxalate 0.5 Solvent Up to 1 L

As a solvent, a 10% ammonia solution in water is used. Next, the fabric is subjected to heat treatment with hot air at 225 s for 45 s, washed and dried according to the regimented regimens. Get a little 5

0 o

intensely colored fabric samples of yellow, blue and green colors, characterized by the following content of dyes in the fiber, g cr, / kg vol .:

Dye a

Dye b

Dye in

e p 15,

3.8

3 4

 (a) 2.1 (b)

All by analogy

five

up to 45

50

55 Notes

with example 14, except that dyes were used: active blue 43 (a) or active red 5 CX (b) or their mixture in relation to

1: 1 (in)

Fabrics of greenish-blue, crimson and brown colors are obtained, which are low-intensity, and are characterized by the following content of dyes in the fiber, gcr./kg ox .:

Dye a

Dye b

3.0 4.2

Dye 2.0 (a), 2.3 (b) PRI me R 16. Samples of mercerized cotton fabric plus at 27.5 ° C dye composition, g / l:

Ostazin golden yellow HR (a) or active bright blue CX (b) or a mixture of these dyes in the ratio 1: 1 (c) Sodium nitrate Sodium oxalate Solvent A 30% solution of ammonia in water is used as a solvent. Next, the fabric is subjected to heat treatment with hot air at 245 ° C for 105 s, washed and dried according to the regimented regimens. Obtained unevenly colored due to the instability of the ammonia solution tissue samples, characterized by the following

12.5 30.0 2.5 Up to 1 l

the content of dyes in the fiber, g cr. / kg ox:

Dye and 6,5-11,6

Dye b 5,2-8,5

The dye in the 2.0-6.2 (a), 1, (Y g kr. / Kg sal .:

fabrics of greenish-blue color, as well as a sample of fabric of raspberry-brown color, characterized by the following content of dyes in the fiber.

The color of the samples has a yellowish tint due to thermal decomposition of cellulose at the specified heat treatment parameters.

Example 17, All analogies with example 16, except that dyes were used: active blue 43 (a) or active red 5 CX (b) or their mixture in the ratio 1: 1 (c).

Receive unevenly stained tissue samples with traces of yellowing, characterized by the following content of dyes in the fiber, g kr, / kg ox:

3.5-8.2

4.8-11.7

1.5-4.8 (a), 2.2-7.5 (b).

Example 18, Samples of mercerized cotton fabric, Pro dye a Dye b

Dye a 2.8 Dye b 10, t Dye 1.8 (a), 7.1 (b) 0 EXAMPLE 20, Samples of mercerized cotton fabric are impregnated in liquid ammonia for 1 s and plus at BO s for 10 s in aqueous dye composition, g / l:

Ostasin golden yellow HR (a) or active bright blue CX (b) or a mixture of these dyes in relation to 2Q SRI 1: 1 (c) 7.5

Potassium Nitrate 50.0

Next, the fabric is subjected to heat treatment with hot air at 240 ° C for 90 s, washed and dried by pei-

15

Dye in

25 lamented modes. Get

the sample is evenly and intensely colored in liquid ammonia for a yellow color, stains at a low intensity for 1 s and is supplemented at 40 s for a 10 s watered blue sample, and also formed in an aqueous dye solution of the composition;

 (Src / kg par .:

145648510

fabrics of greenish-blue color, as well as a sample of fabric of raspberry-brown color, characterized by the following content of dyes in the fiber.

Dye a 2.8 Dye b 10, t Dye 1.8 (a), 7.1 (b) PRI me R 20, Samples of mercerized cotton fabric are impregnated in liquid ammonia for 1 s and are plus at b s within 10 s in an aqueous dye composition, g / l:

Ostasin golden yellow HR (a) or active bright blue CX (b) or a mixture of these dyes with respect to 1: 1 (c) 7.5

Potassium Nitrate 50.0

Next, the fabric is subjected to heat treatment with hot air at 240 ° C for 90 s, washed and dried by pei-

7.5

G / l:

Ostasin golden yellow

HR (a) or active p-. co-blue KX (b) or a mixture of these dyes in

the relation 1: 1 (v)

Potassium Nitrate 50.0

Next, the fabric is subjected to heat treatment with hot air at 230 ° C for 120 s, rinsing and packing according to the regulated modes. A smooth and intensely colored sample of blue fabric is obtained, a low-intensity colored yellow sample, as well as a bluish-green sample, characterized by the following content of dyes in the fiber, g cr, / kg ox,:

4.6 8.1 2.5 (a), 5.6 (b)

Example 19. All by analogy with example 18, except that used dyes: active blue 43 (a) or active red 5 CX (b) or their mixture in the ratio of 1: 1 (c)

A smooth and intensely colored raspberry-colored fabric sample is obtained, a low-intensity colored image.

Dye a Dye b Dye in

30 characterized by the following content of dyes in fiber, g crUk vol. Dye a 10.5 Dye b 5.0 I Dye 6.2 (a), 3.2 (b) PRI me R 21, All by analogy

35

0

five

0

five

with example 20, except that the dyes were used: active blue 43 (a) or active red 5 CX (b) or their mixture in the ratio of 1: (c).

A smoothly and intensely colored sample of a greenish-blue color, a low-intensity colored crimson sample, as well as a blue-brown fabric sample, characterized by the following content of dyes in the fiber, g cr, / kg ox, are obtained:

Dye and 8.7

Dye b 6,1

The dye in 4.8 (a), 3.2 (b)

It is clear from the examples that when dyeing according to the proposed method with a mixture of dyes, the yield of each component into the fiber and, consequently, the total yield of dyes is much greater than when dyeing by a known method. This proves putU1456485

characterizing the

data on the dyeing of mono and dichloride in the corresponding way are summarized

with dream

F

10 tk ra si racr l cce and in 20 busts each in am to 25 N

Table 1 shows the yield of a mixture of mono- and imothriazine K1 asitelles.

on the fabric.

From the data in the table it can be seen that with a total concentration of dyes in a solution of 7.5 g / l (examples 3,6,7), the content of active bright red 6 G in the fiber dyed by this technology is 18-120% higher than in a fiber dyed by a known method for active bright orange FX, this value is 40-80%.

Moreover, the total yield of dyes in the fiber when using the mixture is higher than that obtained by dyeing separately with mono- and dichlorotriazine dye, taking into account the equality of the total concentration of dyes in solution. For example, when the concentration of the dye in the solution is 7.5 g / l, their yield per fiber is g grams per kg of hair .: For bright red 6 C 8.0 For bright orange CX 12.8

Split Mode

The yield of dyes in the fiber by dyeing with a mixture of mono- and dichlorotriazine dyes in relation to 1: 1, g cr. / Kg ox.

Active bright red 6 С (monochlor)

According to the proposed method in accordance with examples

one

2

3 By a known method in accordance with examples

7

five

For a mixture of these dyes in the ratio of 1: 1. In addition, the consumption of inorganic salt in the composition of the dye solution is reduced from 40-60 g / l to 15-25 g / l.

Claims (1)

Invention Formula A method of dyeing cotton fabrics by splicing a dye solution containing an active dye, an alkali metal nitrate and a solvent, followed by fixing the dye, washing and substance, characterized in that dyeing solution containing sodium nitrate as alkali metal nitrate, 15–25% aqueous ammonia solution as solvent, and additionally sodium oxalate at the following Ratio-Research Institute of components, g / l: Active dye 5-10 Sodium nitrate 15-25 Sodium oxalate 1-2 15-25% aqueous ammoniaOther to 1 liter and plus is carried out at 20-25 C. Table Active rko-orgmvyvy KH (dichloro) 6.3 10.8 9.0 6.5 5.0 Dye mode Yield of dyes on the fiber, g / kg when dyed with a mixture of dyes in relation to: 1 active bright red 6 C - 3.75 7 5 g of active SE S2l2P2 2e22E2 li2I lj.Z51 By the proposed method (example 3) 5.3 + 9.0 14.3 By a known method with a mode of padding for monochlor triaine dyes (t 60 C (example 7) According to a known method with a positive mode for dichlorotriazine dyes (t 40 ° C) (example 6) The content of dyes in the fiber with the coloring of the cokpoEIPYANI MONO- and flHXJTOprpazikovyh dyes, g kr./kg.vol. Active bright red 6 С Active bright orange KH Ostaznv golden-yellow-. ty sh Active Rko-Golovoy KH Active Blue 43 Active Red-5 CX  9.5 5.3 9.0 7.4 6.2 6.2 8.0 1.8 2.7 2 || 2.0 2.3 1.9-3.5 4.7-6.7 2.0-6.2 1 | 5-5; 7 1.5-4.8, 5 7, 6 7, 5 7.4% 2.533 6.6 6.2 94 6.5 5.6 86