Utilizing natural colouring substances started to decline after the revelation of man-made dyes toward the last period of 19 century. Intensive study exertions in the area of natural colorants are viewed as eco-friendly likewise these need aid renewable what's more biodegradable; are skin friendly and might be useful for the health of the wearer. Natural colored matters obtained from natural assets of animals, plants, minerals, and microbial sources were utilized for coloring different kinds of textiles. Natural colorants might be utilized for coloring most kinds of natural fibers they could additionally be used to color most of synthetic fiber.
Polyacrylic, viscose, and wool fabric were dyed with tea using a mordant Aluminum sulphate Al₂(SO₄)₃. Factors affecting the dyeing properties such as temperature, time of dyeing bath, L: R and environmentally friendly mordant were used in different concentrations.  Colour strength (K/S) was measured for dyed samples.