Wednesday, August 27, 2014

What are the 2 most commonly used dyes?

Dyes are widely used in petrol, oil, wood, spirit, leather, plastic paper, aluminium foil printing, transparent lacquers, nitrocellulose, cellulose acetate, vinyl, alkyd, other synthetic resins, moulding powders, construction material of cellulose acetate, celluloid, polystyrene, polymethacrylates, PVC, P/F, U/F, Inks for rotogravure and rubber stereo printing, ball point pens. Etc.

Natural and synthetic dyes are the most commonly used type of solvent dye.

Natural Dyes
This type of dye is obtained from natural sources, such as plants. This colorant came into use during Neolithic period.

Originally dyes like; Tyrian purple and Crimson kermes were the ones that were typically used in historical times. However, through the years the use of these dyes has decreased, as many other natural colorants came into use such as; woad, madder, saffron, and indigo.

The existence of these chemicals came into place from Asia and Africa when they introduced fashion coloured textiles. This made the need for natural colouring agents even more vital.

Besides these dyes, some other chemicals that came into existence recently include; cochineal and logwood colors.

Synthetic Dyes
Unlike natural dyes that came into existence from Spain, synthetic dyes were discovered by William Henry Perkin.

With synthetic dyes, thousands of chemicals were fabricated later in the coming years. The fabricated chemicals that came in the list of synthetic dyes offered a wide range of benefits, which is why they replaced natural colorants.

Main benefits of synthetic dyes:
  • Good production rate
  • Diverse colours
  • Better adherence property
  • Better colouring properties
These dyes are further classified into many types- like; basic, mordant, vat and reactive colouring agents.

Before purchasing dyes, you need to have a good amount of knowledge about these chemical products. Along with a thorough familiarity with these, you also need to take into account the credibility of the supplier.

Experience is an important point to consider, if you want good quality products. Therefore, a good research is a must.

Make a list of all those suppliers that are known for delivering, the most reliable products.

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