EP0017773B1 - Multicolour-dyeing process for pile articles - Google Patents

Description

The present invention relates to a process for the multicolored patterning of pile articles, especially carpet material, from natural and / or synthetic fiber materials with suitable dyes in continuous operation.

FR-A-2 181 360 relates to a method for printing long-pile polypropylene for imitations of animal fur by printing the reverse side of the pile with rouleaux printing rollers or circular stencils as well as a device for carrying out the method and also a method for double-sided printing of long-pile polypropylene using rouleaux printing rollers or rotary stencils with the subsequent action of a press roll for the purpose of producing animal fur imitations in particular.

From FR-A-2166 773 is a method for dyeing long-haired plush, especially for imitation fur, the plush being dyed on the back so that the color on the right side of the plush is more or less limited from the root of the hair penetrates the right side of the plush and acts there, known.

DE-A-1 958 907 describes a process for the multi-colored dyeing of a web, in particular felt and / or tufted carpets, in order to achieve irregular spots of color on the visible surface of the finished web of paint, drops of paint distributed, for example applied, sprayed on, -blown, -sprayed or -dripped.

From FR-A-2 081 842 a method is known for dyeing textile webs in particular over the entire surface in patterns resulting from different colors and tints, preferably also legally unbound, whereby after a local application of a dyeing liquid giving a dark color tone with a high liquor ratio or dye liquor with a high liquor ratio and / or after impregnation or coloring with a liquor resulting in a dark shade and squeezing it onto the textile web or onto the pile side of the fabric, the dye liquor for a lighter shade in the long liquor ratio locally, in particular by Drop is applied.

It is also known to apply further dyeing liquors in the form of drops or thin jets to the pile side in order to achieve multicolor effects on a carpet product which has been soaked and still wet. This creates small-area patterns in the form of polka dots or in the form of geometric patterns and lines. This process is referred to as the TAK dyeing process (German Patent 1,760,657).

In order to be able to produce large-scale patterns, the carpet goods were also initially soaked (primed) with a dyeing liquor. Here, however, only quick-fixing dyes have been used, so that no dyes from the primer are washed off the pole tips. In order to be able to carry out this further color application at all, thickeners in the form of highly viscous liquors, more rarely also highly viscous dyeing liquors, were applied to the entire pile of the material in an intermediate order. In the third application stage, moderately thickened color liquors were added dropwise or poured irregularly over the highly thickened, previously applied liquors.

This process has become known as "Gum TAK". However, this procedure could only be carried out with the help of special units.

Another disadvantage of this process was the very limited choice of dyes.

Since a great deal of thickener was used in this process, great difficulties in subsequent washing out have arisen. In addition, water consumption has increased significantly. Constant monitoring of the set pH values is necessary. If you want to work with a large selection of dyes, you have to fix the entire primed product and thus the dyes in an additional step. The applied dyes can no longer be displaced by the applied thickening. In order to prevent the pattern from running out or washing out, defoamers must also be added in relatively large amounts so that the material does not foam. With the amount of thickening agents used, a good wash-out is essential, because otherwise the material is hard and unusable.

There was therefore a need to be able to greatly simplify the dyeing process and to enable a variety of patterns so that all of the dyes selected in accordance with the respective fiber material and the intended use can be used in this dyeing process. In addition, the aim was to make washing out easier, reduce water consumption and eliminate the need for ongoing pH control.

We have now found a process for the multicolored patterning of pile articles, in particular carpet material, from natural and / or synthetic fiber materials by dripping, pouring or spraying on aqueous dyeing liquors onto primed, not intermediate-dried goods, characterized in that only the upward-facing wet reverse side the florware is dripped with aqueous dye liquors, poured over or sprayed.

According to the method of the invention, the aqueous dye liquors can be applied to the back of the pile articles in the form of dots, lines, circles or across the entire width of the goods in the form of irregular spots.

The advantages of the new method can be seen particularly in the fact that a repeated application of paint can be carried out in a single operation. Due to the application of the dye from the back of the fabric, there is no need to consider the dye fixation. With this application form, the fiber tips cannot be washed out at all - even if repeated dripping is carried out - because they hang down and the liquor flows in the direction of the fiber tips. Now higher goods speeds are possible, which in turn allow for higher production. The dyeing liquors, which contain 2-8 g / I thickeners, are low-viscosity and therefore do not require any special equipment for fleet transport. Due to the low viscosity, not only does the consumption of thickener decrease, but washing is also made easier. This in turn significantly reduces the water consumption that used to be considerable.

For multi-colored patterning of pile articles according to the method according to the invention, there are, for example, pile articles made of native or synthetic polyamide fibers, such as wool or fibers made of synthetic polyamides of the poly-Σ-caprolactam type or of the polycondensation product from adipic acid and hexamethylene diamine, and also from native or regenerated cellulose fibers, such as cotton or cellulose, polyacrylonitrile or linear polyester fibers, such as polyethylene terephthalate fibers and butylene terephthalate fibers.

Suitable dyes for articles made of native or synthetic polyamide fibers are all acid, direct, dispersion and cationic dyes suitable for these fibers, for articles made of native or regenerated cellulose fibers all direct and reactive dyes suitable for these fibers, for articles made of polyacrylonitrile fibers all for these fibers suitable disperse and cationic dyes and for articles made of polyester fibers all disperse dyes suitable for these fibers. Suitable thickeners in the context of the new process are, for example, alginates, guare, core meal ether, carboxymethyl cellulose, hydroxymethyl cellulose and xanthan.

Variations in the process are made possible by applying reserving and / or caustic aids in addition to the dyeing liquors.

example 1

und 981 Teilen Wasser bei Raumtemperatur foulardiert. Der Flottenauftrag beträgt 150%, die Viskosität (im Fordbecher gemessen) 3/20. Anschließend wird die feuchte bzw. nasse Ware umgedreht und in einer TAK-Färbemaschine bei einer Geschwindigkeit von 6 m/min auf der Rückseite mit einer wäßrigen Flotte bestehend aus 5 Teilen Kernmehlätherverdickung, 6 Teilen Isotridecylalkohol mit 8 Mol Äthylenoxyd pro Mol Alkohol, 5 Teilen Weinsäure, 1,7 Teilen des Farbstoffs C.I. Nr. 14170 (Acid Yellow 65), 2,5 Teilen des Farbstoffs C.I. Nr. 26 550 (Acid Orange 51 ), 5,8 Teilen des Farbstoffs C.1. Nr. 26 360 (Acid Blue 113) und aus 974 Teilen Wasser betropft.A soft velor fabric made of polyamide 6.6 is mixed with an aqueous dye liquor consisting of 2 parts of core meal ether thickener, 2 parts of isotridecyl alcohol with 8 moles of ethylene oxide per mole of alcohol, 5 parts of 60% acetic acid, 10 parts of an acid dye of the formula

and 981 parts of water padded at room temperature. The fleet order is 150%, the viscosity (measured in the Ford cup) 3/20. Then the moist or wet goods are turned over and in a TAK dyeing machine at a speed of 6 m / min on the back with an aqueous liquor consisting of 5 parts of ethereal thickener, 6 parts of isotridecyl alcohol with 8 moles of ethylene oxide per mole of alcohol and 5 parts of tartaric acid , 1.7 parts of dye CI No. 14170 (Acid Yellow 65), 2.5 parts of dye CI No. 26 550 (Acid Orange 51), 5.8 parts of dye C.1. No. 26 360 (Acid Blue 113) and dropped from 974 parts of water.

It is then fixed in the steamer for 6 minutes at 100 ° C with saturated steam. The result is a coloration that is fluorescent yellow at the tip of the pole and deep black in the background.

Example 2

A high-low tufted nylon-6,6 fabric is composed with an aqueous dyeing liquor in crystalline of 2 parts bean flour ether thickener, 4 parts of Iso _t ridecylalkohol with 8 moles of ethylene oxide per mole of alcohol, 5 parts of tartaric acid., 10 parts of the dye CI 26900 (Acid Red 51), and 979 parts of water padded with a fund fleet order of 100%.

Then an aqueous TAK dyeing liquor is placed on the goods with the left side up upset. The liquor consists of the same drop of dye mixture as described in Example 1.

Then it is fixed in the steamer at 100 ° C with saturated steam for 6 minutes. The result is a deeply patterned coloration that is brilliant dark red at the high tufting points and shows the deeply tufted areas as a black contour.

Example 3

und 989,3 Teilen Wasser geklotzt. Der Flottenauftrag beträgt 100%.A deeply tufted polyamide 6.6 tufted fabric is mixed with an aqueous stock dyeing liquor consisting of 4 parts of core meal ether thickeners, 4 parts of isotridecyl alcohol with 8 moles of ethylene oxide per mole of alcohol, 1.2 parts of 60% acetic acid and 1.5 parts of the dye of the formula

and 989.3 parts of water. The fleet order is 100%.

0,75 Teilen des Farbstoffs der Formel

und 980,60 Teilen Wasser.An aqueous liquor is dripped onto the underside of the material opposite the pile (also the left side), which consists of 4 parts of core meal ether thickener, 10 parts of 60% acetic acid, 0.4 part of dodecylbenzenesulfonate, 3.5 parts of the dye CI No. 14172 (Acid Orange 67), 0.75 parts of the dye of the formula

0.75 parts of the dye of the formula

and 980.60 parts of water.

It is fixed for 6 minutes in the steamer at 100 ° C in saturated steam. You get a product that is fashionably beige in the high-tufted areas and colored dark brown in the lower-tufted areas.

Example 4

0,03 Teilen des Farbstoffs der Formel

0,2 Teilen Farbstoff C.I. Nr. 10 385 (Acid Orange 3), 0,06 Teilen Farbstoff C.I. Nr. 62 125 (Acid Blue 40) und 984,41 Teilen Wasser.A deeply tufted polyamide 6.6 tufted fabric is padded down with the pile with an aqueous fund dyeing liquor consisting of 6 parts of alginate thickener, 6 parts of isotridecyl alcohol with 8 moles of ethylene oxide per mole of alcohol, 2 parts of 60% acetic acid, 1.3 parts of the dye of the formula

0.03 parts of the dye of the formula

0.2 part of dye CI No. 10 385 (Acid Orange 3), 0.06 part of dye CI No. 62 125 (Acid Blue 40) and 984.41 parts of water.

0,3 Teilen des Farbstoffs der Formel

0,3 Teilen Farbstoff C.I. Nr. 62 125 (Acid Blue 40) und 987,4 Teilen Wasser betropft.The goods are then on the TAK dyeing unit with an aqueous liquor consisting of 2.5 parts of Kernmehlätherickenickickeners, 0.5 parts of isotridecyl alcohol with 8 moles of ethylene oxide per mole of alcohol, 6 parts of 60% acetic acid, 3 parts of the dye de formula

0.3 parts of the dye of the formula

0.3 parts of dye CI No. 62 125 (Acid Blue 40) and 987.4 parts of water are added dropwise.

The squeegees of the TAK dyeing applicator are only partially supplied with liquors. This setting only partially covers the goods with TAK dyeing liquor. After steaming, the pile side of the goods shows a brown-beige color that only runs from bottom to top in certain places.

Example 5

und 985,7 Teilen Wasser bei Raumtemperatur foulardiert. Der Flottenauftrag beträgt 100%, die Viskosität - im Fordbecher gemessen - 4/15. Anschließend wird die feuchte Ware in einer TAK-Färbemaschine bei einer Geschwindigkeit von 5 m/min mit einer Flotte begossen bestehend aus 4 Teilen Alginatverdickung, 1,5 Teilen Natriumacetat krist., 0,8 Teilen Essigsäure 60%ig und 20 Teilen einer Mischung aus flüssigen Dispersionsfarbstoffen, bestehend aus 62,5 Teilen des Dispersionsfarbstoffs der Formel

28,5 Teilen des Farbstoffs C.I. Nr. 26080 (Disperse Orange 13), 9 Teilen des Farbstoffs C.I. Nr. 11 116 (Disperse Red 73) und 973,7 Teilen Wasser. Anschließend wird 8 Minuten im Dämpfer mit Sattdampf bei 100°C fixiert. Es resultiert eine Färbung, die an den Polspitzen fluoreszierend gelb und im Untergrund tiefschwarz ist.A plush velor fabric made of polyester fibers is crystallized with a dyeing liquor consisting of 4 parts alginate thickening, 2 parts isotridecyl alcohol with 8 moles of ethylene oxide per mole of alcohol, 1.5 parts of sodium acetate, 0.8 parts of 60% acetic acid and 6 parts of the disperse dye of the formula

and 985.7 parts water padded at room temperature. The fleet order is 100%, the viscosity - measured in a Ford cup - 4/15. The moist goods are then poured in a TAK dyeing machine at a speed of 5 m / min with a liquor consisting of 4 parts of alginate thickening, 1.5 parts of sodium acetate crystals, 0.8 parts of 60% acetic acid and 20 parts a mixture of liquid disperse dyes, consisting of 62.5 parts of the disperse dye of the formula

28.5 parts of dye CI No. 26080 (Disperse Orange 13), 9 parts of dye CI No. 11 116 (Disperse Red 73) and 973.7 parts of water. Then it is fixed in the steamer with saturated steam at 100 ° C for 8 minutes. The result is a coloration that is fluorescent yellow at the tip of the pole and deep black in the background.

Example 6

A deeply tufted loop fabric made of polyacrylonitrile fibers, which can be dyed regularly and acidically, is washed with a dye liquor consisting of 7 parts of powdered core ether thickener, 1.5 parts of sodium acetate, 0.9 parts of 60% acetic acid, 4.5 parts of the cationic dye from C.I. No. 48 054 (Basic Yellow 28) and 986.1 parts of water padded at room temperature. The fleet order is 100%, the viscosity - measured in a Ford cup - 6/15.

und 982,1 Teilen Wasser übergossen. Anschließend wird 6 Minuten im Dämpfer mit Sattdampf bei 100° C fixiert. Es resultiert eine Färbung, die an den Polspitzen der sauer färbbaren Polyacrylnitrilfaser beigefarbig gefärbt und der regulär färbbaren Polyacrylnitrilfaser goldfarbig ist. Der Untergrund ist dunkelbraun.The moist goods are then crystallized, for example, using a KÜSTERS Color dyeing machine at a speed of 5 m / min on the back with an aqueous liquor consisting of 8 parts of ethereal thickener, 1.5 parts of sodium acetate, 0.9 parts of 60% acetic acid. ig, 2.625 parts of the cationic dye of CI No. 48 054, 3.75 parts of the cationic dye of CI No. 61 512 (Basic Blue 22), 1.125 parts of the cationic dye of the formula

and poured 982.1 parts of water. It is then fixed in the steamer with saturated steam at 100 ° C for 6 minutes. The result is a coloration which is colored beige at the pole tips of the acid-dyeable polyacrylonitrile fiber and is gold-colored in the regularly dyeable polyacrylonitrile fiber. The surface is dark brown.

Example 7

A deeply tufted loop fabric made of 50 parts of polyacrylonitrile fibers, which can be dyed regularly, and 50 parts of polyamide fibers, which can be dyed regularly, is mixed with a dyeing liquor consisting of 7 parts of ethereal thickener, 1.5 parts of sodium acetate, 0.9 parts of 60% acetic acid and 4.5 Parts of the cationic dye CI No. 48054 (Basic Yellow 28) and 986.1 parts of water padded at room temperature. The fleet order is 100%, the viscosity - measured in a Ford cup - 6/15.

The moist goods are then crystallized on a KÜSTERS Color dyeing machine at a speed of 5 m / min on the back with an aqueous liquor consisting of 8 parts of ethereal thickener, 1.5 parts of sodium acetate, 0.9 parts of 60% acetic acid, 2.625 parts of the cationic dye CI No. 48,054 (Basic Yellow 28), 3.75 parts of the cationic dye of the C.I. No. 61,512 (Basic Blue 22), 1.125 parts of the cationic dye C.I. Pour No. 11 116 (Disperse Red 73) and 982.1 parts of water. It is then fixed in the steamer with saturated steam at 100 ° C for 6 minutes. The result is a coloration that is dark beige on the pole tips of the regularly dyeable polyamide fiber and of the regularly dyeable polyacrylonitrile fiber. The surface is dark brown.

Claims (4)

1. Process for the multi-color patterning of pile farbrics consisting of natural and/or synthetic fiber materials by dropping, pouring or spraying aqueous dye liquors onto impregnated goods which have not been dried intermediately, which comprises dropping, pouring or spraying the aqueous dye liquors only onto the upwardly, wet back of the pile fabric.

2. Process as claimed in claim 1, wherein the pile fabrics represent carpet material.

3. Process as claimed in claims 1 and 2, wherein resisting and/or discharging auxiliaries are applied in addition to the dye liquors.

4. Process as claimed in claims 1, 2 and 3, wherein pile farbrics of native or synthetic polyamide fibers, native or regenerated cellulose fibers, polyacrylonitrile or linear polyester fibers are patterned.