DE1769132C - Thickener for printing on textiles - Google Patents

Description

1760

Alginai-like thickenings can be achieved through Mixtures of phosphate with methyl and Carboxymethylcellolosen, whereby a MischungsverbäUnis of phosphate: CMC and MC 90:10 to 10:90 is possible

Pie required amount of phosphate starch or the mixtures of phosphate starch and poryphosphate or CMC or MC beguiles 50 to 200 g / kg pressure ' paste depending on the viscosity

example 1

A cotton fabric was printed by film using the Rongalit O process as follows:

1. Approach of the thickening »:
150 g wheat starch with
850gWateranteigen-cooked-at

3. Preparation of the printing paste:

5Q _g indanthicngdbG-Kdver (CL70 «00)

ία

Stir in 150 g of water
40 g Grvcenn added and in

760 g of stem thickening entered ——.-—

The printing paste contains 6.84% dry matter »thickening agents.

_a - _e ρ ^^ ,,, ^ of _the pressure was carried out as described under A).

Prm * '
** After variant B), a clearer and more uniform

Continue cooking 1000 g and then stir until cool.

.2. Approach of trunk thickening:

600 g thickening
SO g glycerine
150g pot axis
100 g Rongalit C
100 g of water

a ₅ A). In addition, the print through which was obtained according to procedure B) was also significantly better than according to procedure A). In addition, the phosphate starch thickening was virtually washed out completely, while the wheat _{stgrke just} ⁶ does not lead _by washing result in uneven pressure loss by this way to be removed Stärkeanteüe.

Example 2

Roller print on rayon using the Rongalit-C process.

3. Priming printing paste
^v

50 g of Indimthrengelb G powder (CI.70600) ISOgWaSl stirred
40 g of glycerine are added and entered into 760 g of stock thickening

1000 g

The printing paste contains 6.84% dry substance of thickener !!. This paste was used for printing, drying at approx. 70 ° C. and steaming for 5 minutes. Was developed in a bathroom that

24 "HA ***.

5 ml / 1 acetic acid 30%

contains

Treatment was carried out at 40 ^° C. for 5 minutes, then rinsed and soaped at the boil for 10 minutes with 0.5 g / l of an alkylaryl polyglycol ether and 0.5 g / l sodium polyphosphate with an average chain length of η = 7. It was then rinsed and dried

1. Approach of the thickening: "

150 g of starch phosphate are stirred into 85Og water (about 6O ⁰ C); the thickening is allowed to cool 1000 g

30th

³⁵

40

45 ^A >

1-The packing was done according to the working method as in example 1. A) but with

_m wheat starch
_880g water

1000 g
manufactured

² trunk thickening:

600 g thickening
60 g glycerin
200 g potash
130 g Rongalit C

Approach of trunk thickening:

600 g thickening
50 g glycerin
150 g potash
100 g RongalitC
100 g of water

1000 g

B)

3. Preparation of the printing paste:

Red Black

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

Water 180g 80g

Wheat starch stem thickening 700 g 700 g

1000g 1000g

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

1. The thickening was carried out according to Example 1. B) but made with cold water

150 g of phosphate starch
850 g of water

1000 g

2. Thickening of the trunk:

It became the same thickening of the trunk as below A) used

1 76 t

3. Preparation of the printing paste:

Red

black

Indanthrene broth orange RR-Suprafix dough, .... 120g Indanthrene print black TI ^ Suprafix dough "., Water. igCtg Phosphate Starch Stannnver-

& ckung TJDOg 70Qg

OK

Wig 80g

g 1000g * ° 4. The aftertreatment was carried out as described in Example 1. A).

Example 3

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

100 g starch ether
900 g of water

1000g
for use.

2. Thickening of the trunk:

As described in example 2. A).

3. Approach of the print paste "

Indanthrene pressure black

TL-Suprafix-T «ig
! tarieether-stäiiimver-

1000 g

4. The aftertreatment was carried out as
game LA).

Result:

1000 g in the case of 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 (4)

1 76Ü32
ι 2 As an artificial thickener can be found in the Claims; Mainly MethyfceDuIose and Carbojrymethyl cellulose (MC and CMC) application. L use of kalÜösUcier phosphate- Frequently used criteria are based on starch starch, which is preferably made up to 10% phosphate based, and is available in amounts up to about Jiält, used as a thickener for printing on 500 g / kg printing paste, but you have that Textiles. Disadvantage that they are boiled before use 2. Use of cold-soluble phosphate and, after printing, enzymatic Abaliawiestarke, which 1 to 30%, preferably 2 to 10%, must be removed from the textile material.
Alkali polyphosphates, especially Kurrolsche "> From the German patent specification 8180 is the He ^ - contains salts, as a thickener for ordering modified potato starches with printing of textiles. Twist of starlings and urea, in particular 3. Use of cold-soluble phosphate starch - phosphoric acid, known. The strengths obtained in the process measure claim 1, the carboxymethyl celluloses can also be used as pressure thickening or methylcellulose in a ratio of 90:10 to 15 medium. However, after the in 10:90 this patent specification contains only those methods 4. Use of cold-soluble phosphate starches that are not soluble in water and Starch according to claim 1 to 3 in amounts of 50 to achieve a thickening like that not treated-200 g / kg printing paste. potato starches are boiled and cold-stirred *> have to. 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 the pattern is set according to the dye. The phosphate starch suitable for this can be neither 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 5P 1 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 up to 170 ° C. The heating is stopped if, therefore, a thickener is used, in which the viscosity of the 2% strength dyes or etching chemicals are stirred into distilled water and the resulting stirred phosphate starch has reached a maximum, the printing paste, which it enables the dye 35 to be applied to the goods in accordance with the pattern by regularly taking samples. 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 still uses wheat and other conventional starches, should contain further additives, as good as possible. So z. B. through the lasts, which contains up to about 10% phosphate. For the addition of wetting agents an improvement of the present purpose, phosphate starch printing is also achieved. In the latter case, however, it can be applied, the phosphate content of which is increased by up to 30%. Make sure that the capillary absorbency of the fiber is not too high, because the polyphosphate can also contain acidic orthophosphates, since otherwise the dye is sucked out of the phosphate, such as mono- and disodium orthophosphate pattern, which leads to blurred con- or mixtures of these,
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 when increasing the thickening. To do this, position the printing paste. For the production of the Verhydrotrope substances like glycerine, urea and thickening, phosphate starch is used either in cold thiourea. In addition to these generally over- water or water heated up to about 60 ° C borrowed additives are often stirred in without lump formation, the printing paste added, the z. B. to accelerate 55 _ _. . ... ... ,, .. ... _n . . , .-, fixation are required. 2. Consistent viscosity of the phosphate starch The pressure thickening must be a certain, compared to the normal strength that occurs within Show briskness, which is also ^{subject to a} retrogradation ^{as suppleness for about 2Ta} S, 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 adjust the phosphate strength The following natural thickeners can be used: Polyphosphates, especially 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.