US2307118A

US2307118A - Process of producing effects on textile material

Info

Publication number: US2307118A
Application number: US290500A
Authority: US
Inventors: Doring Ernst; Grassmader Hans
Original assignee: General Aniline and Film Corp
Current assignee: GAF Chemicals Corp
Priority date: 1938-04-23
Filing date: 1939-08-16
Publication date: 1943-01-05
Anticipated expiration: 1960-01-05

Description

atented Jan. 5, i943 omcs PROCESS OF PRODUCING EFFECTS ON TEXTILE MATERIAL ware No Drawing. Application August 16, 1939, Serial No. 290,500. In Germany April 23, 1938 Claims.

The present invention relates to a process of producing efiects on textile material and the material thus obtained.

The present invention relates to a process of producing efiects on textile material from cellulose fibers, i.'e., fibers of natural or regenerated cellulose or on textile material containing moreover cellulose derivatives, such as cellulose acetate, cellulose propionate or other organic esters or ethers of cellulose or animal fibers such as wool or silk by partial destruction, especially local destruction of the material. The reaction used for this destruction is similar to those known as carbonizing. It is an object of the present invention to produce efiects on textile materials by completely removing the cellulosic fibers without alteration in the strength of the animal fibers or of the cellulose derivatives. It is a further object of the invention to apply to the textile material a carbonizing agent which has hitherto not been used in the process of producing effects on fabrics and which proves great advantages in comparison with the processes known up to now.

Various processes are already known for locally treating tissues consisting of natural or regenerated cellulose with an agent capable of splitting ofi acid, such as aluminium sulfate, aluminium chloride or sodium bisulfate, subjecting the impregnated tissue to the action of dry heat and then eliminating the destroyed fibers by washing and a subsequent mechanical treatment, such as heating, rubbing or brushing. For carrying out said process, special devices are required owing to the temperatures to be applied which are considerably superior to the temperatures generally applied in the textile industry; furthermore the indispensable mechanical treatment is not only complicated and time-consuming, but readily causes the tissue, and particularly sensitive tis-- sue to be distorted or torn.

Now we have found that for the application in the embroidery industry the dry heating to a raised temperature and the mechanical treat- ,The parts of the tissue of natural or regenerated cellulose subjected to the action of the sulfonic acids are decomposed by said treatment so that they can already be washed out with cold or hot water. The parts of cellulose ester or cellulose ether of the tissue or the animal fibers are not destroyed.

The organic sulfonic acids may be of aliphatic or aromatic nature, for instance naphthalene-Z- sulfonic acid, isopropyl naphthalene sulfonic acid, dibutyl-naphthalene-sulfonic acid, ethanesulfonic acid, 2-naphthol-6.8-disulfonic acid, phenol-l-sulfonic acid, toluene-4sulfonic acid, naphthalene-2.G-disulfonic acid.

To produce local destruction of the textile material the organic sulfonic acid may be applied by means of a printing paste containing the usual thickening agents, such as tragacanth, a mixture of wheat starch and tragacanth, Senegal gum, British gum or a mixture of British gum and and tragacanth.

To obtain colored designs dyestufis suitable for cellulose esters and cellulose ethers or for animal fibers may be added to the printing pastes. Besides the pastes there may be printed on the tissue at the same time a paste containing vat dyestuffs or acid sulfuric acid esters of vat dyestuffs or other dyestuffs. For instance on machine printing, with one or several rollers vat dyestufi pastes and with the last roller the paste containing the organic sulfonic acid may be applied to the tissue; said paste may at the same time contain for instance dyestuffs suitable for cellulose acetate. The material is then steamed as usual.

A special operation for fixing the dyestuffs is not Grams Naphthalene-2-sulfonic acid Water 420 Starch-tragacanth-thickening 500 The printed material is dried, steamed for minutes in the rapid ager and washed as usual. At the printed parts the cellulose fibers have been destroyed 2. A tissue of viscose rayon and acetate silk is printed with a printing paste having the following composition:

Grams Isopropyl-naphtha;lene-sulfonic acid 100 Water 395 1 amino 2- methoxy-4-hydroxyanthraquinone 5 Tragacanth solution of 6 per cent strength..- 500 The material is then treated as described in Example 1. Pink designs are obtained on a white ground. Instead of viscose rayon th re may be used cotton.

3. A tissue of viscose rayon and acetate silk is printed with a printing paste of the following composition:

Grams Ethane-sulfonlc acid; 50 Water 450 Tragacanth solution of 6 per cent. strength..- 500 The material is then treated as described in Example 1. At the printed parts the cellulose fibers have been destroyed.

4. A mixed tissue of cuprammonium rayon and acetate silk is printed on machine printing with the following pastes:

Printing paste for the'first roller Grams The paste dyestufi No. 1269' mentioned in Schultz Farbstofitabellen, 7th edition, volume 1 25 Glycerine 50 Water 1 365 Wheat-starch-tragacanth-thickening 500 Potash 60 Formaldehyde-sodium-sulfoxylate 50 1000 Printing paste for the second roller Grams The paste dyestuff No. 1269 mentioned in Schultz Farbstofitabellen, 7th edition,

After the material has been printed and dried it is steamed for 5 minutes in the rapid ager which has been freed from air, then oxidized in the signs are obtained in which the cellulose fibers have been destroyed while the ground tissue of acetate silk has not been attacked.

5. A mixed tissue of viscose rayon and natural silk is printed with a printing paste having the following composition:

Grams 2-naphthalene-6.8-disulfonic acid 150 Water 250 Crystal gum thickening (1.2) 600 After the material has been dried, it is steamed for a short time and washed in the usual manner. Instead of viscose rayon there may be used staple fibers made by the viscose process.

If silk dyestuffs, for instance acid dyestuffs have to be added to the printing paste, the steaming period is correspondingly prolonged and adapted to the fixing of these dyestuffs. Colored designs on a white ground are thus produced.

, 6. A union tissue is printed with the following printing paste:

Grams Phenoll-sulfonic acid 120 Water, 380 British gum 1:1 500 The material is printed, dried, steamed for about 510' minutes and then rinsed. The cotton fibers are dissolved during this process at the printed' parts, whereas the wool fibres are not damaged.

We claim:

1. A process for producing effects on textile material consisting of cellulose fibers and fibers of cellulose derivatives which comprises printing on the material organic sulfonic acids and subsequently drying, steaming and rinsing the material.

2. A process for producing efiects on textile material consisting of cellulose fibers and fibers of cellulose derivatives which comprises printing on the material aromatic sulfonic acids and subsequently drying, steaming and rinsing the material;

3. A process for producing effects on textile material consisting of cellulose fibers and fibers of cellulose derivatives which comprises printing on the material dibutyl-naphthalene-sulfonic acid and subsequently drying, steaming and rinsing the material.

4. A process for producing eifects on textile material consisting of cellulose fibers and fibers of cellulose derivatives which comprises printing on the material 2-naphthalene-6.8-disulfonic acid and subsequently drying, steaming and rinsin the material. 4

5. A process for producing effects on textile material consisting of cellulose fibers and fibers of cellulose derivatives which comprises printing on the material phenoll-sulfonic acid and subsequently drying. steaming and rinsing the material.

usual manner, rinsed and soaped. Light-green and dark green designs are thus produced on the original, non-destroyed tissue; moreover de- ERNST DC'JRING. HANS GRASSMADER.