DE1109135B - Textile finishing process - Google Patents

Description

There have already been made to modify cotton experiments in which it has dealt with the textile material with a Ν, Ν'-methylenebisacrylamide, sodium hydroxide and p-phenylenediamine-containing solution and subsequently heated in air to 115 ⁰ C. The treatment should give the fabric a soft feel. However, the effects achieved are only slight and difficult to reproduce. The method is therefore not suitable for use in practice.

In contrast, it has been found that yarns and textile structures which have been refined wet crease-resistant can be used consist of or contain cellulose or regenerated cellulose, if one can produce them in the alkalized state reacts with such compounds that more than once the rest

CH ₂ = CH-CO -N <

Contain, in contrast to the known processes, the implementation while avoiding essential Water losses is carried out. The fabric obtained according to the invention is characterized by a good wet crease resistance, in particular it has compared to the known methods obtained textiles have the technically valuable advantage that the during expressing in the wet or In a damp condition, indented creases are lost again in a short time during drying, so that the dried fabric shows a smooth appearance.

The refinement of the cellulose is carried out in such a way that the fabric is first made alkaline in the presence of a suitable wetting agent and then the _{compounds containing CH 2} = CH - CO - N ^ groups are applied. The application can be carried out from aqueous solutions or from solutions in organic solvents. It is also possible to apply the compounds in the form of suspensions or dispersions. The solutions and suspensions can be applied to the tissue in any way, e.g. B. be sprayed on. It is also possible to dust the compounds mentioned as solid substances, possibly with the aid of a suitable sieving machine.

It is also possible to proceed in reverse and first _{apply the compounds containing CH 2} = CH-CO-N o groups and then the alkali lye or other basic compounds. It is also possible to use alkali and the

CH ₂ = CH-CO - N <compounds

to be applied simultaneously in a suspension. Advantageous the fabrics treated in this way are used in textile finishing processes

Applicant:

Farbwerke Hoechst Aktiengesellschaft

formerly Master Lucius & Brüning,

Frankfurt / M., Brüningstr. 45

Dr. Ludwig Orthner, Frankfurt / M.-South,

Dr. Karl Horst, Hofheim (Taunus),

and Dr. Karl Waldmann, Frankfurt / M.-Höchst,

have been named as inventors

wound in a slightly tensioned state both in the warp and in the weft direction and the refinement is carried out at a slightly elevated temperature, advantageously between Room temperature and 150 ° C. The higher you get the Temperature, the shorter the conversion time. At room temperature the reaction is in 6 to Completed 20 hours, while at 100 to 130 ° C only a few minutes are needed. At temperatures around and above 100 ° C it is expedient to use steam for heating. This results in a loss of water practically not one, so that the tissue pieces can be refined in a short time, even when spread out can. It may be advantageous to use a polymerization inhibitor, but even in the presence a polymerization catalyst gives useful results.

For the method according to the invention, yarns, woven and knitted fabrics come from native or also made from regenerated cellulose. One can also produce mixed webs containing cellulose Use textile structures for finishing.

Bases suitable for swelling the cellulose are primarily alkali lye, in particular sodium hydroxide solution, and potassium hydroxide solution in concentrations of 1 to 38%. Also, for example, are alkali salts of weak acids, the anions of which do not _{enter into any disruptive side reactions with the CH 2} = CH - CO - N groups, and as far as the salts are aqueous

109 618/452

3 4

Hydrolyze solution sufficiently, suitable. It can be heated to 60 ° C. for 2 hours. After rinsing

but also organic bases such as trimethylbenzyl- the strip shows a wrinkle when wet

ammonium hydroxide and the like, as well as their hydrolysis recovery from 85 to 90% and despite the before

apply sizing salts. Drying was done with a very strong squeeze

As CH ₂ = CH- GO - N o groups containing 5 smooth appearance,

The following compounds may be mentioned, for example: Example 2
lAS-trisacryloyl-s-perhydrotriazine, N, N'-bisacryloyl-

methylenediamide, Ν, Ν'-bisacryloyl-ethylenebisamide, on an alkalized with 15% sodium hydroxide solution

Ν, Ν'-bisacryloylhexamethylene bisamide and similar cotton strips (uptake about 70%) become a

You can also use compounds which io 40 to 50% support of a 20% suspension of

under the reaction conditions bis- / 3-chloropropionylmethylenediamide in water, which

CH ₂ = CH -CO- N <groups ^{in the} ^ ter still 40 g of a polyglycol ether as di-

Contains spergierhilfsmittel, which from Dnsqbutylphenol

form. Such compounds are etherified with about 20 moles of ethylene oxide

for example, the hydrogen halide addition pro-15 was produced, applied. The strip will

products, such as N, N'-methylene-bis- / 3-chloro- as indicated above, rolled up and 2 hours

propionamide and tris-ß-chloropropionyl-s-perhydro- heated to 6O ⁰ C. After rinsing, the shows

called triazine. It is of course also possible for strips to achieve a crease recovery of 80 to 85%

instead of the hydrogen halide addition pro - a recovery time of 3 minutes,
products - which, from a chemical point of view, are also known as halo 20

Hydrogen esters of the corresponding saturated example 3

Hydroxyl compound, e.g. B. A strip of regenerated cellulose fabric is obtained

R _ CO - CH ₂ - CH ₂ OH + HCl -> ^ ^{ne 8} J ⁰ AMe Edition of 2 5% sodium hydroxide solution.

J ρ JL _r „ _rnr , j_„ _n Then 70% of a 20% suspension of

> κ. * _ u ^ n ₂ ^ n ₂ UI -1- n ₂ KJ ₂₅ Trisacryloyl-perhydrotriazine sprayed on in water,

can be considered - the corresponding esters of sodium hydroxide solution and suspension contain 2% ^e i ^nes

Alkyl and aryl sulfonic acids and partial ester mercerization wetting agents based on alkyl sulfonates. The so

the sulfuric and phosphoric acids to be used. impregnated strip is under slight tension

It is also possible to roll up the procedure with others and run it for 20 hours at room temperature.

Combine textile finishing processes, e.g. B. the 30 stores. After rinsing and a subsequent one

In spite of the prior to drying, he shows methods for the wet-crease-resistant finishing under hot wash

Turn 1,3-dichloropropanol after pressing it vigorously into a smooth ironed one

drive the Belgian patent 556 279 or under appearance.

Use of divinyl sulfone according to the Reisniel method 4

U.S. Patent No. 2,524,399. Furthermore, 35 ^P

to a 35% obtained before or after the processing of the present invention A cotton pad strip ig ^e

the textiles with the usual wet and dry wrinkles, a 5% sodium hydroxide solution and a 63% edition

fixed equipment on z. B. urea or melamine a 20% suspension of trisacryloyl perhydro

base. triazine. Samples of this so impregnated strip

It is also possible to expose the at least twice 40 to superheated steam of 3 atmospheres (about 130 ° C) during the remainder of _{1, 3 and 5 minutes containing CH 2} = CH - CO - N <. After rinsing and boiling, all three samples or compounds forming such groups show a good wet presence of other compounds which have only one anti-crease properties.
the group CH ₂ = CH-CO-N <or a

contain reactive double bonds, as in the example

for example acrylic acid, acrylic acid ester, acrylic acid- A cotton strip is given a 70% layer

nitrile, maleic acid and the like, as well as their esters and nitriles, a suspension containing 2% of a commercially available

with the cellulose under the conditions described mercerizing wetting agent, 5% NaOH and 15% Me-

to implement. contains thylenebisacroylamide. Samples of this strip

You can also use the inventive method 50 were dampened, namely

use for wash-proof fixation of finishes, 3 minutes at 1 atü (~ 100 ° C)

as long as the finishing agent has functional groups for 5 minutes at 2 atmospheres (~ 119 ° C)

contain, which with the double bonds of the __ ,. ,. ".. _{,, 1na} ^

CH ₂ = CH - CO - N <groups in reaction for 3 minutes at 2 atm (~ Il9 ° C)
can kick. 55 After rinsing and washing these samples show

The implementation of the method is explained by the above-described wet crease resistance properties

Examples. stocks.

Example I Example 6

A cotton strip of 20 x 500 cm is treated with 60. A cotton fabric receives a 62% impregnation

5% sodium hydroxide solution in the presence of a mixture gnation (based on the dry weight of the

of Na salts of aliphatic sulfonic acids as merceri webes) with 15% sodium hydroxide solution, which contains 3% of a

wetting agent alkalized at room temperature. Contains the commercially available mercerising wetting agents. Thereafter

The absorption of caustic soda is about 105%. 60% ( Then 40% of an aqueous suspension of 65 (based on the dry weight) of a suspension is applied,

25% 1,3,5-trisacryloyl-perhydrotriazine applied. which is composed of 25% Tris-jß-chlorine-

After rolling up the propionyl-s-perhydrotriazine, which is under slight tension, 5% of a wetting agent

Strip of fabric, it is wrapped with a film and based on alkylsulfonate, 25% of a 3% carboxy-

methyl cellulose solution and 45% water. The fabric strip is rolled up under slight tension and Stored for 1 hour at 60 ° C. After rinsing and boiling, the tissue sample shows despite the before Drying gave a very smooth and white appearance.

Example 7

A cotton strip is made alkaline with 2.5% sodium hydroxide solution. Absorption 78% · Then a suspension of 25% trisacryloyl-s-perhydrotriazine, 5% of a commercially available wetting agent based on alkyl sulfonate, 45% of a 3% carboxymethyl cellulose solution and 25% water is applied. Edition 40% ■ The strip is rolled up under slight tension. After the roll has been heated to 70 ° C. for 1 and _{2 hours, it is rinsed and rewashed.} After drying, the cotton strip shows a completely smooth appearance.

Example 8

A Baumwollpopelinestreifen is with a 90 to 100% ^e n contains a support suspension which 12% trisacryloyl-s-perhydrotriazin, 2.5% caustic soda, 2% of a Mercerisiernetzmittels on Alkylsulfonatbasis and 0.5% of a carboxymethylcellulose provided. The strip is rolled up and heated to 80 ° C. for 40 minutes, with no loss of moisture. After rinsing, neutralizing and boiling, the cotton fabric shows excellent wet crease resistance properties.

Claims (3)

PATENT CLAIMS: 1. A process for the finishing of yarns or textile structures which consist of cellulose or regenerated cellulose or contain such, characterized in that they are reacted in the alkalized state with compounds which more than once the rest CH ₂ = CH-CO-N C included, the reaction at temperatures between room temperature and 150 ° C below Avoidance of significant water losses is carried out. 2. The method according to claim 1, characterized in that compounds are used which form the CH ₂ = CH - CO - N <groups under the reaction conditions. 3. Process according to Claims 1 and 2, characterized in that the alkalization is carried out simultaneously with or after the treatment with compounds which _{contain the radical CH 2} = CH-CO-N <more than once. Considered publications:
British Patent No. 735 151;
Textil Research Journal, February 1957, pp. 92 to 98 © 109 618/452 6.