Launch of natural blue color to boost the colorant market
The food and drug administration approved spirulina for the production of natural blue colorant in the U.S. One of the key aspects of the product is that it can combine with other colors to make customized greens. Mars Inc. filed a petition with FDA for the approval of its Natural Blue color made from Spirulina which was approved in 2013 creating new avenues for confectionary and processed food product manufacturers to use a natural blue color.
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Spirulina blue is the first natural blue color which received approval in the U.S. GNT USA also filed a petition with FDA to use Spirulina concentrate as an additive of color in many of the applications such as cream, yoghurts and cereals. Spirulina blue is consumed as a colorant and food ingredient in many countries around the world.
The DIC Corporation, a Japan based colorant manufacturer became one of the largest producers of blue green algae Spirulina Blue after establishing an extraction plant in 2013 with an investment of USD 10 Million in South California, U.S. The extraction facility took a year to build and started production in 2015. The company predicts that the natural food coloring market has doubled between 2013 and 2018 as the demand for natural colors continues to increase. The growing natural colorant market is predicted to boost the colorant market globally in next decade.
Growing usage of bio-based colorants in paints & coatings
The demand for bio-based coatings is increasing due to changing consumer perception towards environment friendly coatings and paints. With 40% share, the most important outlet for bio-based solvents is surface coatings, paints and printing inks. As per the publications of Dr. Idoia Etxeberria, Europe will consume over 1 million tons of bio-based solvents by 2020 with a CAGR of 8.8% between 2015 and 2020.
Bio based materials are used for coatings and paints and are important parts for many coating formulations. Improved carbon and life-cycle performance with higher purity enhances water solubility and also results in reduced toxicity which is the trend for usage of bio-based paint ingredients.
Bio based materials are used as a raw materials for the coating industries that leads to increasing sustainability and also leads to no negative impact on environment which is helping the growth of colorants market globally.
High cost of natural colors is restricting its usage
The future of synthetic colors is not bright as most companies prefer natural colors. But, natural colors are more costly as compared to synthetic colors. The reason behind this is the diversified area in which they are grown. If any of the area is affected by climatic changes, it even affects the global supply and price of natural colors.
Synthetic colors are expected to be there for long time because of its versatility and consumer preference. Synthetic colors also have better shelf stability so they don’t fade soon. They also have much use such as in breakfast cereals and convenience foods.
Natural colors contain less than 2% of pigment in the actual raw material whereas Synthetics have 90% of pigment in it. Further, the stability of natural colors is less than synthetic equivalents leading to higher usage. So, it is the combined effect of higher cost of production and high usage levels of synthetic colors that the higher usage rate are the key reasons that natural colors are most expensive.
Natural dyes are used to dye a specific amount of fabric as compared to the synthetic one. For instance, 230 grams of natural dye is needed for one pound of cotton whereas only five grams of synthetic dye is required for the same. Hence, using natural dyes is much more expensive in comparison to synthetic ones.
Synthetic food colorants are most probably used because of their low cost and high stability. In order to increase the market of natural colorants, one of the opportunities for the manufacturers is reducing the cost of the product. Natural pigments are better than synthetic one as they don’t have much impact on environment.
Water purification in Dyes and Pigments
Plasma driven water purification method is a type of advanced oxidation method. Plasma in liquid mainly generates many of the reactive species that mineralize the contaminants in solution. The interaction mainly takes place in the boundary layer centered at plasma-liquid water interface. The process usually occurs in electric field conditions, large density gradients and fluid dynamic effects. The development of plasma diagnostics aims at elucidating physical processes taking place at the interface.
Dyes and pigment manufacturing industries have become a real threat to water bodies as they discharge 150 tons of lethal and toxic chemicals per annum into water bodies. The production of more than 10,000 dyes exceeds 7x105 annually. Since these effluents carry concentration of some dyes, they consume oxygen in wastewaters. These effluents are harmful as they contain elevated levels of COD (30-22000 mg/L), color, pH (1-14), turbidity (10-1000 mg/L), alkaline substances, temperature, acids etc.
Organic compounds in wastewater such as pigments and dyes are toxic and have lethal effect on aquatic life too. So, recently some of the scientists have developed some strategies with good dye removal performance.
A laser-induced fabrication technique was introduced by china that demonstrated the nanomaterial adsorption performance for removal of methyl orange and methyl blue from wastewater that absorbed dyes providing a green, rapid and low-cost solution for purification of water. As, the dyes molecules were not showing easy desorption by the following treatment, researchers are now taking a next step Iny using Ag2S@Ag adsorbents to understand about maintain the sustainability.
Some of the major players operating in this market are BASF SE, DIC Corporation, Clariant, Cathay Industries, Colorchem International Corp and others.
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