Dye is a kind of organic substance that imparts color, and the process of dying a textile is the means by which the material is altered (physically or chemically) to achieve this effect. Since they may be used on a variety of different fibers including cellulose, acrylic, modified nylon, and polyester, basic dyes are among the most flexible types of dyes. Basic dyes are also known as cationic dyes because the chromophore has a positive charge. Dyestuffs with high basicity are used on fibers that have acidic groups that might react with these cations. The presence of carboxyl or sulfonic acid groups in fiber makes it suitable for dying with basic dyes.
In theory, jute may be dyed using the same dyes used for cotton. However, there are a number of drawbacks to using these colors when dying jute. The fiber has an exceptional affinity for basic dyestuff, allowing for outstanding color even on unbleached bases. These colors, however, aren’t as resistant to light and water as others. The use of acid, direct, and sulfur dyes is on the rise, although they provide more drab colors at a reasonable price. While azoic and vat dyes provide bright colors and fast turnaround times, their exorbitant cost prevents widespread application.
Dyeing a Piece of Jute Fabric Using a Simple Dye:
Basic colors are favored by jute more than any others. For this reason, Mordant is unnecessary when coloring jute fiber. The first method for Dyeing Jute Fiber has followed to make the dye solution. Currently, the dye solution has heated in a dye bath. After the dye bath has been heated, the material is added to it. It is found that the Dye solution is not covered by the product.
This is how the temperature is gradually increased. If the temperature rises beyond 900 degrees Celsius, the burners will be shut off. The material is left for a very long time. It will take around an hour to complete this coloring process. Afterward, the material is taken out of the water, treated, and then dried by squeezing.
Also Read: Guide To Make Your Own Moroccan Kaftan with Explanation
Equipment for Dyeing:
Dyeing Jute Fabric with a Simple Rinse:
The durability of dyes is increased after being treated with 2% acetic acid on colored fabric. The therapy itself takes 15-20 minutes and may reach temperatures between 60 and 800 degrees Celsius.
The addition of 2 percent alum to dyed fabric enhances the saturation of the hues. Fifteen to twenty minutes of water at a temperature of 70 to 80 degrees Celsius are utilized twenty times.
Auxiliary Chemicals and Their Roles:
Dyestuffs that are derived from basic salts, which are cationic in nature, are known as basic dyes. When applied to an anionic surface, basic dyes create electrostatic attractions. Cationic dyes are those whose chromophore has a positive charge, as is the case with basic dye molecules. The basic dyes have a reaction on the acidic side of the isoelectric points. The most prevalent types of basic dyes are salts, often chlorides, where the color itself serves as the basic or positive radical. Because of its intensity, it is used as a dye. Various fibers such as wool, silk, cotton, jute, and acrylic are treated with it.
To facilitate chemical penetration into the substrate, wetting agents enhance the wettability of a solution. Water’s surface tension is reduced, making it easier for droplets to spread over a surface and also for the liquid as a whole to spread.
The pH is Controlled with the Use of Acetic Acid:
To lessen the disruptive effects of heavy metal ions on soaping and dying operations in the absence of a water-softening facility, a sequestering agent have utilized. Without actually removing the metal from the system, sequestering agents are able to prevent a characteristic or reactivity of metal ions. Moreover, the majority of the time, a sequestering agent is ethylenediaminetetraacetic acid.
One common electrolyte is glauber salt (Na2SO4. 10H2O). The charge on the fiber has lessened or eliminated, enabling the fabric to be dyed.
Conclusion:
Jute is a natural fiber used to make sacking. Printing on jute fabrics requires just basic colors. Acidic conditions have required for printing using basic dyes. Certain elements are put into jute cloth to make it more user-friendly. However, the practice of printing and dyeing jute is gaining popularity.
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