DE2227604C2 - Process for the production of denim articles - Google Patents

Description

a homogeneous mixture and then heated to 80 ° C with steam. This takes place the formation of condensation increases the volume of the liquor to around 80 liters. Besides that 2.5 kg of Reactive Blue 5, C.I. No. 61 210 in the commercially available setting are added by pouring 101 over them dissolved in hot water and stirred into the sizing liquor in portions, which is adjusted to 100 l.

The chain is impregnated with this liquor on the sizing machine with a level of 120 to 140% and dries.

The residual moisture of the impregnated cotton chain should be around 9%.

The warps dyed in the size are then made in the usual way with (raw) white weft yarn interwoven.

Then it is mercerized in cold sodium hydroxide solution at 30 ° Be while fixing the dyes at the same time, washed out and acidified. The woven fabric is used to remove the unfixed dye components finally with a 1% strength aqueous solution of the sodium salt of a condensation product of oleic acid and N-methyl-taurine soaped at the boil and finished as usual.

A typical denim design is obtained in the colors blue (warp) and white (weft) with good Dye yield and the best mercerising effect.

Example 2

As in Example 1, three sizing liquors are used, but instead of the dye used there Liquor 1 an addition of 6 1 of the coupling of the diazotized 2-aminoanisole-4- / 5-oxäthylsulfonsulfonsäureester Reactive dye formed with acetyl-H-acid in the commercially available setting, dissolved in 151 boiling water, contains liquor 2 an addition of 5 kg of l-amino-4- [3 '- (/? - hydroxy-ethylsulfonyl-phenyl -) - amino-] anthraquinone-2-sulfonic acid in the usual commercial setting, dissolved in 15 liters of boiling water, and liquor 3 remains without the addition of dye.

With these sizing liquors, three different cotton warps are impregnated in the usual way dried and then on the Scherbaum to a single chain in a red / white / blue stripe design summarized and then interwoven in the usual way with (raw) white weft yarn.

During the subsequent mercerization with sodium hydroxide solution, 32 ° Be, the reaction of the reactive dye occurs at the same time with the fiber, so that the fastness properties after the usual acidification and boiling soaping correspond to the high standard of reactive dyeing and an overall three-color stripe design is obtained in the best color yield, with the red and blue stripes giving the characteristic denim effect show.

Example 3

As in Example 1, two sizing liquors are made up, but instead of the dye used there of the liquor 1 3 kg Reactive Orange 1, CI. No. 17 907, dissolved in 10 kg of hot water, and the Liquor 2 4 kg of 1,3-diamino-benzene-4-sulfonic acid diazotized by condensation of 1 mole of cyanuric chloride + 1 mole + 1- (2 ', 5'-dichlorophenyl-) 3-methyl-5-pyrazolone-4-sulfonic acid obtained reactive dye in the usual commercial setting, dissolved in 121 hot water, added in portions.

With these two sizing liquors, two different cotton warps are impregnated in the usual way on the sizing machine with a layer of about 130% and dried on the hot flue to a residual moisture content of 10%.
The yellow warp dyed in the size is then interwoven in the usual way with the warp, which is orange in the size and rewound on bobbins, as weft yarn. This procedure results in a two-tone fabric in yellow-orange with the typical changeant effect, which is intensified by deepening the color during the subsequent caustic treatment with sodium hydroxide solution at 18 to 22 ° Be with simultaneous dye fixation.

Example 4

To imitate a typical colored weave in a checked design, four separate sizing liquors are first prepared as in Example 1, in which, by changing the dye addition to the liquor, 1 4 kg of the l-aminobenzene ^ -zS-oxäthylsulinsulfuric acid ester obtained by coupling the diazotized l-aminobenzene ^ -zS-oxäthylsuliönsulfuric acid ester with l- (4 ' -Sulfophenyl) -3-carboxy-5-pyrazolone resulting reactive dye in a commercial setting, dissolved in 121 hot water, the liquor 2 4 kg of the coupling of the diazotized 2-aminoanisole-4 - /? - oxäthylsulfonsulfosäureester with -naphthol-5-sulfonic acid resulting reactive dye in a commercial setting, dissolved in 12 liters of hot water, the liquor 3 3 kg of the reactive dye of the formula 1-amino-4 - [3 '- β - hydroxy - ethylsulfonyl - (6' - carboxylic acid phenyl) amino] anthraquinone 2-sulfonic acid in the commercially available setting, dissolved in 10 l of hot water, can be added in portions.
Liquor 4 remains without the addition of dye.

With these four sizing liquors, four different cotton chains are made in the usual way on the Sizing machine impregnated with a liquor pick-up of around 125% and placed on or on the hot flue Drying cylinders to a residual moisture content of 9%.

One then leaves the yellow or red chain on the shear tree to form a single chain in any one Stripe design converge while the blue and white warp are rewound on Kopse and then as weft yarns, also in any striped pattern that matches the warp stripe, in the usual way Way to be interwoven.

Finally, for the simultaneous fixation of the dye, it is mercerized in cold sodium hydroxide solution, 30 ° Be, as usual, Washed out, acidified and treated at the boil using a synthetic detergent.

In this way, a fabric is obtained with a characteristic multicolored check pattern in full and mixed shades with a typical denim or changeant effect. During the alkali shock treatment, the dyes are optimally fixed in the mercerising liquor and achieve the fastness level customary for reactive dyes.

Claims (2)

1 2 are resistant. The viscosity of such hot finishing claims does not change even after standing for a long time. Carboxymethyl celluloses are also in the aftermath 1. Process for the production of denim treatment baths, soluble quickly and without residue Articles, characterized, 5 and act very well as a carrier for detached dye that the warp yarn with such a size pigment. float treated, the one or more reactive The fixation of the reactive dyes takes place at Contains dyes, woven after drying, causticizing or mercerizing, which are carried out in the usual way the tissue obtained at temperatures below 18 to 22 or 30 to 32 ° Be with sodium hydroxide solution mercerized or causticized at 60 ° C and carried out in the usual io. Way treated. After treatment with the reactive dyes 2. The method according to claim 1, characterized by marked containing sizing liquor, the chains are drawn, that one dries on the shear when weaving, avoiding excessively high temperatures tree are one or more colored chains. The residual moisture of the impregnated cotton and / or white chains converge. 15 chain should be around 9%. The yarn treated in this way 3. The method according to claim 1 and 2, which is then woven with (raw) white weft yarn,
characterized in that the warp yarn is woven like yarn with a weft and simultaneous fixing of the dyestuffs treated by the same process for subsequent mercerization or leaching. Usually in cold caustic soda from 30 to 32 or 18 to 20 22 ⁰ Be treated, washed out and acidified, taking into account the reactive dyes temperatures of 6O ⁰ C should not be exceeded. To remove the unfixed dye components, the woven fabric is then treated with an aqueous one Twill goods made of cotton, which are soaped by interweaving a solution of a synthetic detergent of boiling-dyed warps with white or colored weft yarn and finished as usual,
The pattern for so-called denim articles and hard-wearing leisure clothing is widely used is generally limited to one after the other. Warp sizing process dyed cotton warp with Denim articles of this kind can also be used with a (raw) white weft thread at the same time, in order to achieve the typical bicolor effect in good time.
With an azo component capable of coupling and it is also easily possible to interweave the chains and develop one or more colored chains of woven goods with stabilized diazonium salts and / or white chains on the shearer, so or after diazotized real bases the so-called 35 that multi-colored stripe effects in the warp direction are produced "warp sizing - priming - process", which are moreover made by using, whereby one bypasses the otherwise customary colored yarn dyes produced by the same process. For this process, all plain weft yarns can be used as a further patterning option with machines whose nip rollers offer a checkered effect. Compared to the hitherto customary edition of rubber or similar material 40 colored weave processes in which in strand or on have. Cross-wound bobbin-dyed yarns are woven in. This procedure comprises the following stages: In all these cases, the dye is only fixed during the removal and priming, drying, weaving, developing, final mercerising or leaching.
Post-treatment and mercerising. In the process according to the invention, a process for the production of 45 only the dye development was saved, but denim articles were also found in which the warp yarn, the fixing of the reactive dyes, is treated immediately with a sizing liquor, which also has a time under the Contains conditions of mercerization or or more reactive dyes, after causticizing, so that a further rationalization of drying interweaves, the fabric obtained mercerized results from the process. In addition, they are additional or caustic and post-treated in the usual way. 5 ° Patterning possibilities with regard to the Her-Ais reactive dyes, representatives of the adjustment of colored weave effects can be possible. In contrast to the most varied of organic dyestuff classes, for example the azo, anthraquinone and phthalocyanine-colored primed with coupling-capable azo components and therefore light- and acid-sensitive substances, the at least one / Ϊ-hydroxyethylsulfone warp yarns can be blocked by padding with reactive sulfuric acid ester group , Vinylsulfonyl group, mono- 55 dyes from neutral or from weakly acidic chlorotriazine groups, dichlorotriazine groups, 2,2,3,3-Te sizing liquor dyed and dried warp yarns, trafluorocyclobutane-1-acroylamino group, vinylsulfonylamino groups are stored and stocked indefinitely . group, a dichloroquinoxazine or dichlorophthal 60 The in the following examples for the used azin residue can be used. You will be given the color index numbers given by the dyes. Sizing liquor in the usual condensate for reactive dyes, its 2nd edition 1956 and the supplementary volume centrations added. Taken as sizing agent in 1963, all sub- B e i s ο i e 1 1 punch in question. Experience has shown that 65 are suitable for this The best sizing based on neutral, salt- One prepares a sizing liquor by adding 2.5 to 5 kg containing carboxymethyl celluloses, as they are quickly and carboxymethyl cellulose in a batch vessel with Soluble in cold water without residue and alkaline stirring motor in 60 to 701 cold, soft water