WO1983001261A1

WO1983001261A1 - Method for dyeing and/or printing of natural or regenerated mercerized or causticized cellulose

Info

Publication number: WO1983001261A1
Application number: PCT/EP1982/000219
Authority: WO
Inventors: D.M.C. Dollfus-Mieg & Cie.
Original assignee: Madoux, Alan; Perrig, Max
Priority date: 1981-09-30
Filing date: 1982-09-30
Publication date: 1983-04-14
Also published as: PT75628B; EP0076986A1; GR77669B; PT75628A; ZA827102B

Abstract

Method for dyeing and/or printing cellulose fibers and mixtures thereof with synthetic fibers, mercerized with an alkaline lye, wherein the mercerizing lye remaining on the mercerized or causticized cellulose fiber or mixtures thereof is totally or partially preserved, while waiting for the dyeing or printing of the yarns or fabrics.

Description

Process for the dyeing and / or printing of natural or regenerated mercerized or caustified cellulose

It is known that it is possible to mercerize cellulosic fibers with mercerizing liquors and then dye them. Mercerization, that is, treatment with, for example, sodium hydroxide, is a known finishing process for cotton. The mercerizing processes are carried out in very diverse ways. However, the thread or fabric is always rinsed or neutralized after mercerization and before dyeing to rid it of the free mercerisaσe lye adhering to it.

it has been found that mercerized cotton can be dyed using an alkaline detergent, with increased color yield, if the mercerizing lye present on the yarn is not rinsed and neutralized or the fabric after the mercerization process and if the dyeing process of the mercerized material is carried out directly. In addition, this results in a shortening of the treatment and a saving in particular of water and energy, this all the more that the usual neutralization treatments are eliminated. The present invention relates to a. process for dyeing natural or regenerated cellulosic fibers and their mixtures, mercerized with an alkaline or caustic solution, characterized in that the mercerized solution has beech with mercerized cellulose is left totally or in part, pending the dyeing or printing of threads or fabrics.

The subject of the invention also relates to natural or regenerated cellulosic fibers and their mixtures dyed according to this method and preferably in the form of knitted textiles.

Mercerized cellulose is understood to mean mercerized cotton and its mixtures with synthetic fibers, and above all polyester or regenerated cellulosic fibers, these fibers having been treated or not before mercerization or caustication, in order to give them transi modifications. - roofs or definitive of their characteristics, their behaviors concerning hydrophilicity, affinity, resistance or others.

It is not important to know how you mercerize with caustic soda or any other alkaline detergent. In accordance with the invention, it is important that the thread or the fabric is not specially prepared for dyeing (neutralization rinsing).

For the dyeing of such natural or regenerated cellulosic fibers, the usual processes with reactive, tank or direct dyes are taken into account. It is preferable to dye immediately after mercerising proper, either on the mercerizing installation, or on a neighboring or following installation. The suitable reactive dyes are those usually used for dyeing cellulose, knowing that the dyeing is carried out according to conditions known per se, but characterized by short bath ratios, in particular for the threads.

The suitable reactive dyes are preferably fluorochloropyramidine, monofluorotriazine, dichlorotryazine, trichloropyrimidine, dichlorochinoxaline, and methyl-sulfonated -chloro-methyl-pyrimidine, knowing that the dyes may contain more than one reactive group.

As an example for fluorochloropyrimidine dyes, here are a few known in CI:

CI Reactive Yellow 25, 64, 111 and 125 CI Reactive Orange 69 CI Reactive Red 123, 147, 159 and 171

CI Reactive Blue 113, 114, 116, 120, 170 and 178 CI Reactive Violet 23 and 33 CI Reactive Green 21

as well as the other dyes of this type known in CI.

The dyeing begins as usual at 10 -.25 ° C, the bath containing in addition to the dye, 10 to 80 g / 1 of preferably non-foaming sel, with or without one. preferably non-foaming surfactant; then it is heated to 30 - 40 ° C. If the bath additionally contains 5 to 40 g / l of sodium carbonate, we start at 30 or 40 ° and heat to 50 or 60 ° C.

On the other hand, the dyes monochlorotriazine and trichloropyrimidine are also suitable. As examples known in the CI, the following trichloropyrimidine dyes are cited:

CI Reactive Yellow 41, 58 and 64 CI Reactive Orange 11, 34 and 73 CI Reactive Red 55, 56, 25, 86, 120 and 132 CI Reactive Green 15 CI Reactive Violet 6

CI Reactive Blue 8, 18, 42, 52 and 78 CI Reactive Green 12. The dye bath usually contains 20 to 80 g / l of salt as well as the appropriate additives. We start dyeing at 40 or 50 ° C and heat to 70 - 80 ° C. If the bath additionally contains 5 to 40 g / l of sodium carbonate, it is started at 60 - 70 ° C and heated to 90 - 98 ° C.

Tank dyes are suitable:

CI Vat Blue 6 CI Vat Red 18 CI Vat Green 1 CI Vat Brown 80 CI Vat Orange 17 CI Vat Yellow 1.

The procedure is as follows: the dye bath contains 5 to 20 g / l of salt and the vat dye and the appropriate adjuvants. Then, it is heated to 40-70 ° and 1 to 2 g / l of caustic soda and 1 to 10 g / l of sodium hydrosulfite are added.

After 15 minutes, rinse and oxidize.

As direct dyes are suitable for example:

CI Direct Blue 78 - 90 and 207 CI Direct Brown 43 and 200 CI Direct Orange 52 and 107 CI Direct Yellow 40 and 98 CI Direct Green 31

The procedure is as follows: the bath contains 1 to 10 g / l of salt and the dye. We start to dye at 40 - 50 ° C, heat to 80 - 90 ° C and rinse after 30 minutes.

Suitable sulfur dyes are in particular: CI Leuco Sulfur Brown 10

CI Leuco Sulfur Blue 19

CI Leuco Sulfur Green 16

CI Leuco Sulfur Brown 1.1

CI Leuco Sulfur Brown 26

The following examples explain the process knowing that the parts are parts by volume or by weight, that the percentages are percentages by weight and that the temperatures are indicated in degrees Celcius.

Example 1

A bath (1000 parts of water) is filled at 20 ° C. 1 part of a product with the addition of 2 moles of ethylene oxide and 1 mole of lauryl alcohol which has been sulphated, and 100 parts of mercerized and non-neutralized cotton thread or fabric

then we process 5 minutes, and add

1.2 part of the CI Reactive Yellow 125 dye

1.3 part of the CI Reactive Red 147 dye 1.8 part of the CI Reactive Blue 178 dye

and treated for 5 minutes at 20 ° C. and then added

60 parts of sodium chloride and treated 20 minutes at 20 ° C.

After rinsing and soaping, a strong and solid brown dye is obtained.

Example 2

We fill a dye bath (1000 parts of water) at 40 ° C with 30 parts of sodium carbonate

1 part of an adduct of epichlorohydrin to stearic acid monoethanol and 100 parts of mercerized wire or fabric.

We shoot 5 minutes and add

1.3 parts of the CI Reactive Yellow 111 dye 1.5 parts of the CI Reactive Blue 116 dye.

The mixture is heated to 60 ° C. and treated for 15 minutes.

After rinsing and soaping, a bright and solid green dye is obtained.

Example 2a

A dye bath (1000 parts of water) at 20 ° is filled with 1 part of an epichlo rehydrin adduct to stearic acid monoethanol and 300 parts of mercerized cotton thread or fabric.

We shoot 2 minutes and add

5 parts of the CI dye. Direct Blue 90 1 part of the CI dye. Direct Yellow 93

We turn 5 minutes and add 10 parts of sea salt.

It is heated to 40 °, it remains there for 10 minutes then it rises to 80 ° for 5 minutes.

We empty and rinse.

We get a green color.

Example 3

In the 20 ° dye bath, for

100 parts of cotton thread or fabric, comprising: - 300 parts of water

35 parts sea salt

- 1 part of an adduct of 2 moles of ethylene oxide to 1 mole of lauryl alcohol, which has been fat fatated afterwards.

After circulation for 5 minutes, we add:

- 1.5 parts of the CI Reactive Orange 93 dye _ 1.5 parts of the CI Reactive Red 188 dye.

It is heated to 70 ° and dyed for 15 minutes at 70 °. After rinsing and soaping, a bright and solid scarlet dye is obtained.

Example 3a

1000 parts of water at 40 ° with 300 parts of cotton thread or mercerized fabric 10 parts of Sodium Polysulfide 20 parts of Sodium Chloride 30 parts of CI dye. Leuco Sulfur Brown 26

The mixture is heated at 60 ° for 20 minutes. Rinsed and neutralized then on a new bath (1000 parts of water) is oxidized at PH 4 -.5 with 5 parts of hydrogen peroxide at 30% by volume for 10 minutes at 50 °. We soap, we rinse. A solid medium brown color is obtained.

Example 4

In the 40 ° dye bath for 100 parts of mercerized cotton yarn or fabric and not neutralized, include: - 300 parts of water

20 parts sea salt

- 1 part of a sulfated product of addition of epichlorohydrin to 1 monoethanolamide of stearic acid.

Add 4 parts of the CI Reactive Blue 79 dye

It is heated to 80 ° and remains for 15 minutes at 80 °.

After rinsing and soaping, we obtain a strong and solid Navy Blue dye.

Example 5

In a dye bath (1000 parts of water), garnish at 60 °

- 100 parts of cotton thread or fabric

- 30 parts of baking soda

then we add

- 2 parts of CI Reactive Orange 11 dye

- 1 part of CI Reactive Red 55 dye

- 1.6 parts of the CI Reactive Blue 52 dye

It is treated at 60 ° for 5 minutes.

Subsequently 60 parts of sodium chloride are added. The mixture is heated to 98 ° and dyed at 98 ° for 20 minutes.

After rinsing and soaping, a strong and solid brown dye is obtained.

Example 6

A cotton mesh has been mercerized with soda caustic at 120 ° on an oar. The dry material leaving the train is then impregnated with a bath, the composition of which is as follows (per 100 parts of water): - 35 parts of the dye CI Reactive Blue 104 - 115 parts of the dye CI Reactive Violet 23

1 part of an adduct of 2 moles of ethylene oxide 1 mole of lauryl alcohol which has been sulfated later

20 parts sea salt

We express at 80% expressing rate. It is rolled up and left to stand for 6 hours at 20 °.

After rinsing and soaping, a solid dark blue dye is obtained.

Example 7

On a rower, a cotton cloth is mercerized at 120 ° with caustic soda. The fabric is dried on the rower and it is padded with a bath containing, for 100 parts of water.

45 parts CI Reactive Brown 24 100 parts urea and

5 parts of sodium alginate.

the fabric is then dried continuously and the dye is fixed continuously for 60 seconds at 150 °. After rinsing and soaping the fabric, a solid, intense brown color is obtained.

Instead of padding the fabric, it can be printed with a paste having the following composition:

45 parts of CI Reactive Blue 104 dye 100 parts of urea

20 parts of sodium alginate and 1 part of sulfosuccinic ester.

After printing, the fabric is dried and the dye is fixed for 60 seconds at 150 °. After rinsing and soaping the fabric, a solid impression of intense blue color is obtained.

The fabric can also be scarfed with a bath having the following composition:

30 parts of CI Reactive Red 119 dye 15 parts of CI Reactive Rëd 118 dye 10.0 parts of urea

10 parts of sodium m-nitrobenzenesulfonate 5 parts of sodium alginate and 1 part of sulfosuccinic ester.

After continuous drying, the dye is fixed to the continuous by spraying for three minutes at 102 ° and the fabric is rinsed and soaped. A solid scarlet color is obtained.

Instead of the padding, the fabric can be printed with the paste described above but containing 20 parts of sodium alginate, and fix the dye in the manner described above.

The fabric can also be scarfed with a bath having the following composition:

20 parts of CI Reactive Blue 116 dye 10 parts of CI Reactive Blue 114 dye 10 parts of sodium m-nitrobenzéhesulfonate 1 part of sulfosuccinic ester and 40 parts of sodium sulfate. Without drying, the product is then sprayed continuously for 1 minute at 102 °.

You can also pad the fabric with a bath having the following composition:

18 parts of CI Reactive Yellow dye 25 20 parts of CI Reactive Blue 116 dye 30 parts of calcined sodium sulfate 10 parts of sodium m-nitrobenzenesulfonate and 150 parts of urea.

Without carrying out drying, it is then sprayed for three minutes at 102 ° and the dye is fixed. After rinsing and soaping the fabric, a solid, shiny green color is obtained.

Example 8

A cotton cloth is mercerized on a merceriser with caustic soda at 28 ° Bê. In a dyeing machine in a short bath, the non-neutralized fabric is dyed, with a bath having the following composition (bath ratio 1:10):

3 parts of CI Reactive Green 120 dye 0 parts of calcined Glauber salt.

We start dyeing at 45 °. After 30 minutes of dyeing at 50 °, the temperature is raised by 1 ° per minute to 80 ° and dyed for 30 minutes at 80 °.

After rinsing and soaping the fabric, a solid and shiny green dye is obtained. Example 9

A knitted cotton article is mercerized at 120 ° with caustic soda. The knitted article is dried on the rower and it is fouled with a bath having the following composition:

2 parts of CI Direct Yellow 98 dye 11 parts of CI Direct Blue 90 dye 90 parts of urea

5 parts of polyethylene glycol

5 parts of benzyl alcohol

5 parts of hexylene glycol

5 parts of methylisobutylglycol

2 parts of monoethanolamine and

2 parts of dispersing agent.

It is stored for 12 hours at room temperature and rinsed. A solid green coloration is thus obtained.

The knitted article can also be foularded with a bath having the following composition:

40 parts of Leuco Sulfur Brown 10 10 parts of urea

30 parts of sodium sulfide and 1 part of sodium hexametaphosphate.

It is left to stand for 3 hours at 20 °, rinsed at 60 ° and oxidized for 30 seconds at 50 ° and at pH 4-5 with 8 ml / 1 of hydrogen peroxide at 30% by volume. After rinsing and soaping the fabric, a solid brown color is obtained.

The following dyes can also be used: CI Leuco Sulfur Brown 10 CI Leuco Sulfur Blue 19 CI Leuco Sulfur Green 16 CI Leuco Sulfur Brown 1.1 CI Leuco Sulfur Brown 26

Example 10

The mercerized cotton fabric according to Example 8 can be dyed, without neutralization, in a short bath pt using a bath before the following composition:

4 parts of Leuco Sulfur Blue 19 10 parts of sodium sulfide and 40 parts of sodium chloride.

We start dyeing at 40 °, heating to 60 ° in the space of 30 minutes and holding at 60 ° for 20 minutes. After having rinsed and neutralized, the mixture is oxidized to pH 4-5 with 5 parts of oxygenated water at 30% by volume. After soaping the fabric, an intense blue color is obtained.

Claims

Resales

1. process for dyeing natural or regenerated cellulosic fibers and their mixtures with synthetic fibers, mercerized with an alkaline detergent, characterized by the fact that the mercerizing or causticizing detergent adhering to the cellulosic fiber is kept on the subject in whole or in part.

2. Method according to claim 1 characterized in that it is dyed with reactive dyes, tank and / or direct + sulfur.

3. Method according to claims 1 and 2 characterized in that it is dyed with fluorochlorσpyrimidine dyes, mono fluorotriazine, dichlorotryazine, dichlorochinoxaline, methyl sulfonated - chloro-methyl, pyrimidine, sulfato-ethyl sulfonated and trichloropyramidine.

4. the dyes according to claims 1 to 3 are produced on cellulosic fibers and their mixtures.

5. the dyes according to claims 1 to 4 are produced on fibers which may have been previously treated in order to modify their characteristics and / or their behavior.

6. cotton as well as its mixtures with polyester or regenerated cellulose according to claim 4.

7. dyeing process according to claim 1 to 6 being carried out in the presence of surfactants, generally used in the finishing processes.