Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Plastic colorant and its role in plastic industry

1,803 views

Published on

Published in: Business
  • Be the first to comment

Plastic colorant and its role in plastic industry

  1. 1. Usage Of Chemicals In Chemical Industry
  2. 2. Plastic Colorant And Its Role In Plastic Industry If we talk about plastic industry, then one of the most important aspects of this trade is giving the plastic its bright and attractive color. A plastic colorant is used for this purpose. These plastic colorants are available in the form of dyes and pigments.
  3. 3. If we talk about the dyes that are used in plastic industries, then one thing needs to be kept in mind is that these dyes should be strong enough to show good heat stability. Along with that these must be transparent. Because of their chemical nature, the dyes are of limited use in the industry as they may react with the resins to show some unwanted results. The dyes are used for giving shade to a resin. Dyes are used with polycarbonates, polystyrene, acrylic polymers generally because of their strength and transparent nature.
  4. 4. Now talking about pigments, titanium dioxide is one of the most widely used pigments in plastic industry used to make the plastic more white bright and strong. Pigments are a better choice as compared to dyes for use with polyefins as dyes tend to migrate in polyefins. And with their opacifying ability and broader chroma, they are preferred over dyes as a colorant. The nature of pigment is also a very huge factor. Depending upon the processing temperature requirements, the choice of organic or inorganic pigments is made. The choice of the colorant however, depends upon the base resin that is going to be used in manufacturing the plastic to avoid any color shift.
  5. 5. Another important thing that determines the choice of the colorant is the application of the plastic. If the plastic is going to be used in food industry, then toxicity needs to be checked.
  6. 6. Thus we see that the choice of coloring agent depends upon a combination of various factors. And a slight miscalculation in the choice can alter the properties of the plastic and prove to be very harmful for the industry. Hence, the choice of a colorant becomes so vital. The fact that a good selection of the colorant can even enhance the functionality makes it even a more important task to choose a colorant. And keeping in mind that color is such an integral part of the plastic, without which the attractiveness of plastic is completely lost, the process of giving the plastic a color must be dealt with very carefully. And that is the only reason why industries spend millions of dollars in their research and development departments to select the best combination of polymers and colorant.
  7. 7. Thus we see that the choice of coloring agent depends upon a combination of various factors. And a slight miscalculation in the choice can alter the properties of the plastic and prove to be very harmful for the industry. Hence, the choice of a colorant becomes so vital. The fact that a good selection of the colorant can even enhance the functionality makes it even a more important task to choose a colorant. And keeping in mind that color is such an integral part of the plastic, without which the attractiveness of plastic is completely lost, the process of giving the plastic a color must be dealt with very carefully. And that is the only reason why industries spend millions of dollars in their research and development departments to select the best combination of polymers and colorant.

×