DE1769132B - Thickener for printing on textiles - Google Patents

Description

or methyl celluloses in a ratio of 90:10 to 15 medium are used. However, after the in Includes 10:90. this patent specification only such methods

4. Use of cold-soluble phosphate starches that are not soluble in cold water and obtained Starch according to claim 1 to 3 in amounts of 50 to achieve a thickening like that not treated-200 g / kg printing paste. - th potato starches are boiled and cold-stirred

20 den must.

It has now been found that one can overcome these disadvantages

can avoid, if instead of the previous starchy thickeners as phosphate starch

Textiles are printed in such a way that thickeners for printing textiles are

that one relieves the pattern according to the dye. The phosphate starch suitable for this can be weoer by pressure rollers or by stencils on for example advantageously by adding 100kg

brings up the goods. Another possibility is to put corn starch in a kneader with a solution of

given by that the desired pattern of 5.56 kg of sodium triphosphate and 4.17 kg of disodium di

mix an already colored stock with the appropriate phosphate in 58 liters of water. The wet mass

Chemicals are corrosive. 30 is dried in such a way that no gelatinization takes place.

It is not possible to find the dyes or etching chemicals and then to apply them to a temperature of 150 kali from aqueous solutions. It is heated to 170 ° C. The heating is stopped if, therefore, a thickener is used in which one stirs the viscosity of the 2% strength dyes or etching chemicals into distilled water and thus the stirred phosphate strength has reached a maximum, the printing paste, which enables the dye 35 what by regular Taking samples to bring them onto the goods in accordance with the sample. Can be easily determined by. As a polyphosphate in a subsequent steaming process, the dye can be fixed on the textile material with low, medium and high molecular weight alkali and then the pressure polyphosphate and potato, corn, rice, paste as starch are removed. The thickening, which can also contain wheat starches and other customary starches, should contain further additives and should be as good as possible. So z. B. by the endures, which contains up to about 10% phosphate. For the addition of wetting agents, an improvement in the present purpose, phosphate starch printing is also achieved. In the latter case, however, it can be applied, the phosphai content of which is increased by up to 30%. Make sure that the capillary absorbency of the fiber is not too high.
doors leads. The use of such a phosphate starch as

In addition, so-called thickening agents are added to the printing pastes, which has the following advantages:
Solubilizers added, the task of which is the

Solubility of the dyes in the low water 50 1. The boiling of the starch is not necessary in the preparation.

increase amount of thickening. To do this, position the printing paste. To manufacture the

hydrotropes such as glycerin, urea and thickening will turn phosphate starch into either cold

Thiourea used. In addition to these generally customary water or heated up to about 6O ⁰ C water

Borrowed additives are often mixed in with other chemicals without the formation of lumps,

added to the printing paste z. B. to accelerate 55. _. . ... ... .... . " _T , .... . ₄ _.

fixation are required. ² · Consistent viscosity of the phosphate starch

The pressure thickenings must be a certain relative to the normal strength that occurs within

^{Show briskness} , which is also subject to ^a retrogradation as suppleness about 2Ta S en,

can respond and the viscosity of the material. 3. An enzymatic breakdown after drying

is dependent on thickener. Depending on the type of 60 is omitted, since the phosphate starch in the subsequent

applied dyes, the type of fabric and the after-soap bath is removable and beyond

Printing process, the thickener will still have a beneficial effect on the washing process,

len and possibly also mix. It is also possible to use the phosphate starch

The following natural thickeners are commonly used: Polyphosphates, in particular Kurrol's salts Wheat starch, dextrin or burnt wheat starch, 65 in an amount of 1 to 30%. preferably 2 to Tragacanth, British Gum and Alginate, some of which add up to 10%. In this case you get insurance alone or in a mixture of thickening from slimy to rubbery other can be used. Character.

3 4

Algjnat-like thickenings can be achieved by using the 3rd printing paste: Mixtures of phosphate starch with methyl and 50 g indanthren ^ ib G powder (CL 70 600) Carboxymethylcellulose !!, wherein a Mischungsver- _m

ratio of phosphate: CMC and MC 90:10 to 10:90 150 g of water are stirred in

possible is 5 40 g glycerine added and in

Enter the required amount of phosphate starch or the 760 g stem thickening Mixtures of phosphate starch and polyphosphate

or CMC or MC is 50 to 200 g / kg pressure ¹⁰⁰ ° ^ε

paste, depending on the viscosity of the printing paste contains 6.84 ° / ₀ Trockensub-

RI ₁ ¹⁰ punch on thickeners. B e ι s ρ 1 e I 1 _The completion of the print took place as

A cotton fabric was described in the film print under A).

printed using the Rongalit C process as follows: _. .

Result:

A) 1. Approach of the thickening: _vt . . .,. _t _. .... ,. .

i5o ₆ w .: "" .,ai ".";, »5 After variant B), a clearer and more identical

Pour 850 g of water into a paste - boil it off - at ^maBl S ^er _n Uruckaustaii achieved compared to aer vannnic

8O ⁰ C 20 minutes ^ In addition, the print through, which after the ar-

by way of B) was also obtained substantially

Continue cooking 1000 g and then until it is finished it is better than using method A). Extra-cold stir. ™> The phosphate starch thickening was able to do this in practice -. . . ~ j · ι are completely washed out, while the wheat

2. Approach of the trunk thickening: _{strengthen only by} washing out to unsteady pressure

600 g of thickening material that cannot be removed in this way

50 g glycerine leads to starch content.

150 g pot axis * 5 B e i s d i e 1 2

100g RongalitC Example I

¹ OOg water roller print on rayon according to the Rongalit

! OQQg C method.

3. Approach of the printing paste 30 ^A ) ^{L The} thickening was carried out according to the procedure

as in example 1. A) but with

50 g indanthrene yellow G powder (CI. 70600). ".....,

are in 120 g wheat starch

150 g of water stirred in ⁸⁸⁰ S of ^water

40 g of glycerine supplied and in 1000 g

760 g of stem thickening entered ³⁵ produced
1000 g

The printing paste contains 6.84% dry ² trunk thickening:

substance in thickeners. 600 g thickening

This paste was used for printing, at approx. 70 ^° C. 40 60 g of glycerine

dried and steamed for 5 minutes. 200 g potash

Development was carried out in a bath containing 130 g of Rongalit C

2ml / lH _a 0 ₂ 30o _{/ o} ig, TS = T * """

5 ml / 1 acetic acid 3O ⁰ Z ₀ Ig ₄₅ 1000 g

contains. 3. Preparation of the printing paste:

Treatment was carried out at 40 ^° C. for 5 minutes, on - «« black

finally rinsed and 10 minutes with 0.5 g / l indanthrene brilliant orange

of an alkylaryl polyglycol ether and 0.5 g / l RR-Suprafix dough 120 g

Sodium polyphosphate with an average pressure of 50 indanthrene black

borrowed ketia length of η = 7 boiling TL-Suprafix dough 220 g

soaps. It was then rinsed and water 180 g 80 g

dries. Wheat starch stock

_m . . ,. ,, .., thickening 700 g 700 g

B) 1st approach of the thickening: "- -

55 1000 g 1000 g 150 g of phosphate starch are used in

850 g of water (approx. 6O ⁰ C) stirred in; man 4. The aftertreatment was carried out as under

allows the thickening to cool. Example 1. A) described.

1000 g _6o B) 1. The thickening was carried out according to Example 1. B)

. _,. , ° but made with cold water.
2. Approach of trunk thickening:

, "" ,, j. , 150 g of phosphate starch

600 g thickening _{850 water}

50 g glycerine ^

150 g potash - 1 °°° 8

100g RongalitC 2nd stem thickening.

100 g water p s was the same _{thickening of the trunk as un-}

1000 g ter A) described used.

i 769

3. Preparation of the printing paste:

Red

Indanthrene brilliant orange RR Suprafix dough 120 g Indanthrene print black TL Suprafix batter

Water 180 g

Phosphate starch stem thickening 700 g

1000 g

black

220 g 80 g

700 g

IO

1000 g

4. The aftertreatment was carried out as indicated under Example 1. A).

Example 3

1. The procedure was as in Example 1, but came

3. Preparation of the printing paste:

red swaiz

Indanthrene brilliant orange RR Suprafix dough 120 g Indanthrene print black TL Suprafix dough 220g

Water 180 g 80 g

Starch ether stem thickening 700 g 70Qg

1000g 1000g

4. The aftertreatment was carried out as described in Example 1. A).

Result:

100 g starch ether
900 g of water

1000 g

for use.
2. Thickening of the trunk:

As described in example 2. A).

With the printing paste according to example 2. B) were Obtained prints whose sharpness of contours the print ao as they were obtained according to Example 2. A) and 3, are superior. The procedure according to Example 2. B) is also clearly superior in the print through compared to example 2. A) and only slightly superior to example 3.

Claims (3)

The following are used as artificial thickeners in the patent claims: Mainly methylcellulose and carboxymethylcellulose (MC and CMQ). 1. Use of cold-soluble phosphate thickenings that are often used are based on starch strength, preferably up to 10 ⁰ Z ₀ phosphate, and are used in amounts up to about, as a thickener for printing 500 g / kg printing paste. However, you have the textiles. Disadvantage that they are boiled before use 2. The use of cold soluble such as starch phosphate and after printing by enzymatic degradation, the 1 to 30%, preferably 2 to 1O ⁰ * must be removed from the textile /. Alkali polyphosphates, in particular Kurrolsche io. German Patent 851180 contains Her salts, as thickeners for ordering modified potato starches with printing on textiles. change of acids and urea, in particular 3. Use of cold-soluble phosphate starch - phosphoric acid, known The obtained thereby; n starches