Rung International offers Primary Blended Food Colors. Rung International is an ISO 9001 registered organisation. Rung International manufactures different types of primary food colors, natural food colors, synthetic food colors, blended food colors, and reactive dyes. The Primary Blended Food Colors are generally unique and offer variety in terms of shade and strength. These blended colors are used as food additives and can be used for formulating cosmetics, pesticides, writing inks, tablets & capsules, toothpastes and many other products. The Primary Blended Food Colors are widely used in food and beverages, and cosmetic industries.