Tag Archives: vat dyes for yarn

In a reactive dye, a chromophore has a substituent that responds with the substrate. Reactive dyes have great fastness properties owing to the covalent bonding that happens during coloring. Reactive dyes are commonly used in the dyeing of cellulose like cotton or flax, but also wool is dyeable with reactive dyes. Reactive dyeing is one of the most important methods for the pigmentation of cellulosic fibers. Reactive dyes can also be applied on woolen and nylon; in the latter case, they are used under weakly acidic problems.

Classification Of Reactive Dyes:

Depending on chemical constitution reactive dyes can be identified as:

•Chlorotriazine Dyes (MCT)
•Vinyl Sulphone Dyes (VS)
•Heterocyclic Halogen Including Dyes (HHC)
•Mixed Dyes (MCT-VS)

Depending on application approaches of temperature, reactive dyes can be identified as:

1.Cold Reactive Dyes: This type of reactive dye is used at extremely low temperatures. The temperature level lies between 25 – and 50 levels Celsius. They are extremely reactive with fiber at this temperature level.

2.Medium Reactive Dyes: This type of dye is used in a medium temperature level range of 40 – 60 degrees Celsius. Their reactivity is a medium with fiber.

3.Low Reactive Dyes: This type of dyes has extremely low reactivity properties with fiber in contrast with the medium and high reactive dyes.

Properties Of Reactive Dyes:

•Reactive dye is organic
•Reactive dye is a water-soluble dye
•They have clean and fastness properties
•They have better substantivity
•They form a strong covalent bond with the cellulosic fiber
•A variety of colors can be produced with reactive dyes
•Affordable in cost

USES REACTIVE DYES:

1.Reactive dyes are used where intense dyeing with light & clean fastness is needed.

2.Cold coloring is used extensively in batik works.

3.Although some reactive dyestuff has been specifically changed to dye woolen, their primary usage remains in coloring cotton linen & viscose rayon.

4.Dyeing of cotton with reactive dyes.

BENEFITS OF REACTIVE DYES:

1.Permanency of the color:

Fiber Reactive Dyes can be conveniently said to be the most irreversible of all dye kinds. This is a result of a special high quality, unlike various other dyes, it can form a covalent bond with the substrate (cellulose or protein molecule). After the formation of the bond. there is only one molecule, as the molecule is now part of the cellulose fiber molecule.

2.Easy Washing:

The fibers that are colored with fiber reactive dyes can be safely colored despite having white garments without the danger of coloring them.

3.Chemical Binding:

The chemical bonds as explained over substantially boosts the product’s color safety and washability. Therefore, no doubt reactive dyeing of cotton is one of the most popular fabric coloring processes on the planet.

Dyes are used on textiles to give colors. There are various sorts of product dyes utilized in the fabric industry. However, 2 major identifiable sorts of dyes are all-natural dyes as well as artificial dyes. All-natural dyes, as the name suggests, are made by extracting natural pigments from plants, animals, and minerals. Man-made Fabric dyes, on the other hand, are made in a research laboratory.

This is done by synthesizing chemicals as well as steels to obtain the color of option. Numerous sorts of product dyes are made use of to contain color to various kind of fabrics. Material can be tinted in any sort of sort of phase of the textile manufacturing treatment, be it in fiber, string, material, or probably on completed textiles.

Countless types of product dyes are taken advantage of for different sorts of items in the fabric market. Each sort of dye has various applications and provides various levels of surface on the product. It is because of that vital to thoroughly pick the proper type of color. Adhering to provided is a list of all dyes:

1. Fiber Reactive Dyes

Fiber responsive dye creates a molecular bond with the fiber’s fragments and color bits. Reactive dyes are dependable for usage in cotton items and numerous other cellulose/ healthy and balanced and also balanced protein fiber materials. Due to the fact that the color fragments bind with the fiber’s little bits, fabrics colored with fiber reactive dyes are among one of the most wash-safe materials. This indicates that these textiles can be cleaned with various other products without the concern of shade blood loss.

2. Direct Dyes

The straight color is amongst numerous kinds of material dyes that are taken advantage of to color cellulose fibers, such as cotton. Straight dyes are less pricey than numerous other fabric dyes, which is one element that resembles over different other dyes. Direct dyes are usually easy in color and also not as clean quickly as numerous other material dyes. Nevertheless, as contrasted to fiber reactive dyes, straight dyes are rather a lot less lightfast.

3. Acid Dyes

This type of product dyes is made use of in tinting protein fibers such as woollen and silk. Acid dyes are the absolute best choice of color for tinting healthy and balanced protein textiles. Acid dye, on its own, is a large category from kinds of textile dyes and contains different other kinds.

4. All-Purpose Dyes

It is a mix of various sorts of dyes in which straight color is included with acid dye to make a brand-new dye, which is appropriate for a collection of textiles. All-Purpose Dyes can dye a series of various items, similarly the ones which are a mix of 2 fibers. Nevertheless, this color can not be utilized to dye polyester.

5. Vat dyes

Barrel is a kind of fabric dye that is insoluble in water. Vat dyes are known for their feature of requiring a lowering representative to be taken in. The tinting process takes place in a container or a vat. Barrel dyes are high in colorfastness.

Hope you discover the article useful and insightful. Many thanks for reading it. We have one of the most reliable quality vat dyes for cotton and pigment emulsion.