Tag Archives: acid dyes

All About Commercial Dyes, how to Use Them Best and What to Look for in Getting the Right Dyes

Buying a commercial product such as a dye requires buyers to make purchases in bulk, which is why it is important to make sure that the right product for the right application is bought. Even though you do not have to be an expert on dyes, you need to have a basic know how of how to identify the best dyes from the most viable manufacturers of dyes in India so that you are able to get value for money from the products that you are buying. There are a couple of things that you should know about the dyes, their types and how they are used to be able to make the best purchase decisions for your commercial uses.

The Types of Dyes:

There are a lot of different types of dyes that you can pick from when you need to use dyes. Based on the application of the dye, you can make the right purchase decision. Among the most commonly produced and purchased dyes are reactive dyes, acid dyes, basic dyes, direct dyes and vat dyes or pastes. These dyes are mainly segregated based on the way in which they react with the substrate to denote color to the surface or the way in which the color is applied to hold on to the material on which it is applied.

A typical use of dyes is to provide coloring to products and surfaces like fabrics or paper. Depending on what kind of a fabric or other material needs to be dyed, the type of dye is chosen by the users. However, irrespective of the type of dye or its application, it is important to make sure that the most viable dye manufacturer in India is chosen for the job so that you can be sure about the quality of the product that you choose to opt for.

The Features of the Best Dyes:

Since most dyes are used in textile applications, it is important that the fastness properties of the dyes are checked thoroughly. When you want to make sure that you are able to make the right use of the dyes that you opt for, it is important to understand how to gauge the viability of the dye. There is one main measure that you need to check on when you want to ensure that you get the best dyes for your use, the fastness. Here are a couple of fastness measures that your dyes need to match up to:

  • Light Fastness: It is important that the dyes do not start to fade when they are exposed to either natural or artificial light. This is particularly important for the dyes that are used in the dying of textiles used for the making of items like bags and storage packaging which is bound to be extensively exposed to sunlight.
  • Wash Fastness: This is an important element in establishing the quality of the dye because when fabrics are dyes they are also washed regularly after use. A dye that quickly fades out after a few washed cannot be considered a good dye for dying fabrics.

These are some of the things that you need to look for in your dyes when you set out to get your dyes from the best manufacturers of dyes in the country.

Benefits of 3 types of acid dyes

 Acid dyes

Acid dyes are safe to use in the textile and food industries as long as they are handled with care. Just as a dyer works with other concentrated powdered dye or chemical it cannot be done without the dust mask and gloves. The benefits of acid dyes are mainly to bond the protein fibers. Its affinity for staying softer and silkier adds weight to its wide applications due to its solubility and light fastness of color.

Vipul Organics, has been in the business of pigments and dyes long enough to provide insight

about various dyes and how they impact various industries.

Key takeaways:

  • Understanding the chemical dye chemistry
  • Why acid dyes are valued for fastness
  • Industrial applications other than textiles
  • Advantage of dealing with Vipul Organics

Structural part

  • It consists of molecular group –S03H
  • The pH is mild like white vinegar/critic acid
  • Ideal for silk rinses as it tends to restore the softness quotient
  • The dye is non-toxic
  • Ideal for applications in the textile industry for dying cotton, silk, nylon and wool.

The actual structure falls in 4 categories depending on the molecular group.

  1. Azo
  2. Anthraquinone
  3. Premetalized
  4. Triphenylmethane

Sometimes the same dyes may fall in one or more categories. But they all have –S03H which get attached to the amino groups of the fiber. The Azo dyes are considered acid red. The structure is Ph-N=n-Ph. They are primarily used on cellulose fabrics i.e. cotton or rayon.

Why acid dyes are valued for fastness qualities?

The dyes are mainly used under acidic conditions and they are characterized by two factors:

  1. How they dissolve in water
  2. Amphoteric affinity for the fiber

Good customer ratings of fastness are critical for their significance. Good quality processes ensure there is no fading (of fabric) even after repeated washes. Hence, it is also successfully used for art and art printing. It offers a premium finish to the final fabric.

Industrial applications

It is well known fact the entire textile sector uses a variety of acid dyes for fabric enhancements and coloring. In the textile industry it is used to treat silk in several color tones. In low temperatures the dyes are treated. When it is used on wool there is a salt link between the dye molecule and fiber polymer.

But there are other sectors also where they are applicable successfully like:

  • Fertilizers
  • Leather
  • Detergents & metal nodization
  • Coolants for engines

Vipul Organics Advantage

  • There are concentrated options for dyers available with us for commercial usage of blending different colors.
  • We conduct pure levelling of colored dyes and milling.
  • Choose from our proprietary collections of products for your specific needs.
  • We do testing on wool and silk by washing for lightness and fading.

Vipul Organics is in the process of manufacturing products like acid red. When used for printing on the yarn they are quite safe. We ensure good quality is maintained uniformly with precise industry standards for the fabrics to last long and be durable. Interested in dealing with us? We form good partnership with all our business associates with our high performing products.

 

Purpose and applications of direct dye in the paper industry!

 

Direct Dyes

 

Direct dye? What is it? The direct dye is the class of dyestuff which is used directly to the substrate in the alkaline or neutral bath. They create full shapes on linen and cotton without mordanting and can also be useful to silk, wool or rayon. It gives bright colors but exhibits poor wash.

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Use of Dyes & Pigments in the Paper & Pulp Industry

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One of the oldest applications of dyes and pigments is the paper and pulp industry. There are several grades and varieties of paper that undergo the dyeing process besides the regular writing paper. Some of them include copier papers, facial tissue paper, envelope grades, cover papers, corrugated cases and specialty papers.

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Brief on Features and Applications of Solvent Dyes

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The world of dyes and pigments is vast and there are innumerable varieties of these colorants to fulfill the requirements of varied industrial and commercial sectors. Acid dyes, basic dyes, solvent dyes, lake colors, pigment colors are just to name a few from the vast ocean of colors. This article will talk in brief about the solvent dye.

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Getting Familiar with Industrial Dyes and Pigments!

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Dyes and pigments are two kinds of colorants that have found their way into every aspect of our lives. As far as the industrial sector is concerned, several types of dyes and pigments are being used in large amounts in a series of applications. Dyes are soluble substances which have an affinity towards the substrate and the industries which find use for them are leather, textile, cement, plastic, paper industry and many more. Pigments on the other hand are insoluble substances and are available in granular or powder form. Their mode of imparting colour is through the reflection of specific light rays. The industries where pigments find maximum use are the inks and paint industry.

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Leather Dyes- Major Component in Leather Industry

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Leather accessories are playing a distinct role in the world of fashion in today’s times. They are counted as one of the major factors in trending fashion wears and therefore the safety and quality of these products is being paid attention to in great detail. Leather dyes, are one of the main components that are responsible in giving the deep glossy look to the jackets, shiny black to the shoes and rich hues to the handbags.

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How Are Colours Seen by Us?

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Colour infuses life and vitality to every day materials and makes them attractive and appealing. The natural burst of colourful flowers and varied hues of green in summer to the contrasting shades of orange and yellow in autumn, the colour in nature makes impressionable prints on our mind. How do we perceive colour? We hardly give it a thought!

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