Sulfur dyeing of fabric and yarn. simple recipes

Free technical library

FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
Free library / Directory / Factory technology at home - simple recipes

Sulfur dyeing of fabric and yarn. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

Comments on the article

Sulfur dyes give a coloring that is very durable to washing and light and, on average, is cheaper than substantive ones; however, they do not produce such vibrant colors as the latter.

Sulfur paints that give good reds and pinks do not yet exist at all. The methods of sulfur dyeing are very close to the methods of dyeing with substantive paints already described. Bath water is taken 5-10 times the weight of the fabric and, having dissolved soda and Glauber's or common salt in it, half the solution of sulfurous dye is added. This latter is prepared in a separate vessel by dissolving the dye with an equal (for some dyes, one and a half or double) amount of sodium sulfide. For dark shades, instead of pure sodium sulfide, a cheaper technical product (sulfuric liver) can be used.

First, sodium sulfide dissolves in hot water, and then a weighed amount of dye. The amount of dye per 1 kg of fabric is taken quite large, namely from 50 to 125 g, depending on the shade; moreover, one must be guided by the same considerations as when dyeing with substantive dyes.

A fabric or yarn is lowered into a hot dye solution and dyed without boiling for about half an hour, for blue paints it is better to keep the bath at a temperature not higher than 60-70 ° C, then add the rest of the dye solution and dye for about another hour in a slowly cooling bath. To achieve even coloring, the fabric is turned over from time to time.

At the end of dyeing, the material is squeezed out as best as possible and, straightened, left to hang in the air for 15-30 minutes to "age". This allows the paint to be firmly attached to the fiber and acquire a better color. Then it is thoroughly washed with water to remove sodium sulfide and boiled for 10-15 minutes in a soapy solution: 100 g of soap per bucket of water. For better removal of sodium sulfide, it is useful to rinse in a weak solution of sulfuric or acetic acid before boiling in soap: a teaspoon of acid in half a bucket of water. After washing, rinse again and dry.

Examples of dyeing recipes with sulfur dyes per 1 kg of fabric or yarn:

Black color

Sulphurous black BSF 100 g;
Sodium sulfide 175 g;
Soda ash 50 g;
Salt 200 g.

Green

Bleached sulphurous ZG extra 100 g;
Sodium sulfide 200 g;
Salt 150 g;
Soda ash 50 g

Cyan or blue color

Sulphurous blue R extra 200 g;
Sodium sulfide 200 g;
Soda ash 50 g;
Table salt 200 g.

With sulfur dyeing, not all the paint is consumed from the bath, and the spent solution can be used again with the addition of about half the amount of materials.

Author: Korolev V.A.

We recommend interesting articles Section Factory technology at home - simple recipes:

▪ Refractory putty

▪ Marseilles soap

▪ Various cements

See other articles Section Factory technology at home - simple recipes.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

The threat of space debris to the Earth's magnetic field 01.05.2024

More and more often we hear about an increase in the amount of space debris surrounding our planet. However, it is not only active satellites and spacecraft that contribute to this problem, but also debris from old missions. The growing number of satellites launched by companies like SpaceX creates not only opportunities for the development of the Internet, but also serious threats to space security. Experts are now turning their attention to the potential implications for the Earth's magnetic field. Dr. Jonathan McDowell of the Harvard-Smithsonian Center for Astrophysics emphasizes that companies are rapidly deploying satellite constellations, and the number of satellites could grow to 100 in the next decade. The rapid development of these cosmic armadas of satellites can lead to contamination of the Earth's plasma environment with dangerous debris and a threat to the stability of the magnetosphere. Metal debris from used rockets can disrupt the ionosphere and magnetosphere. Both of these systems play a key role in protecting the atmosphere and maintaining ... >>

Solidification of bulk substances 30.04.2024

There are quite a few mysteries in the world of science, and one of them is the strange behavior of bulk materials. They may behave like a solid but suddenly turn into a flowing liquid. This phenomenon has attracted the attention of many researchers, and we may finally be getting closer to solving this mystery. Imagine sand in an hourglass. It usually flows freely, but in some cases its particles begin to get stuck, turning from a liquid to a solid. This transition has important implications for many areas, from drug production to construction. Researchers from the USA have attempted to describe this phenomenon and come closer to understanding it. In the study, the scientists conducted simulations in the laboratory using data from bags of polystyrene beads. They found that the vibrations within these sets had specific frequencies, meaning that only certain types of vibrations could travel through the material. Received ... >>

Random news from the Archive

People hunt birds or vice versa 19.04.2009

On the Indonesian island of Flores, in the same layer of sediments where the skeletons of unusual dwarfs, nicknamed "hobbits", were found several years ago, Dutch paleontologists discovered the bones of extinct huge birds.

The giant marabou of this previously unknown species was the largest predator on the island of Flores. The bird reached a height of almost two meters, while its contemporaries "hobbits" were only a meter tall. Whether the birds ate people or people hunted these birds is still unknown.

Other interesting news:

▪ Water from the wind

▪ Created antimalarial mosquitoes

▪ The existence of a time loop has been proven

▪ Coffee grounds for road construction

▪ Navigator that understands natural speech

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the website Residual current devices. Selection of articles

▪ article To go astray. Popular expression

▪ article How do you get a tan? Detailed answer

▪ article Snowberry white. Legends, cultivation, methods of application

▪ article Oils for hair. Simple recipes and tips

▪ TV off timer article. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews