Fabric samples were tested for strength in NRC’s wind tunnels, while others were exposed to the elements on clotheslines and flagpoles. Its red was considered the ideal, so NRC worked with dye makers who adjusted their formulas to duplicate the same fade-resistant shade of red when printing. To specify this colour, NRC scientists measured the colour characteristics of the Canadian Red Ensign – Canada’s unofficial flag since 1870. The colour had to be a brilliant, stable red that could be reproduced precisely and consistently for every flag and fabric. Canada’s National Research Council was given the task of perfecting the Canadian flag and choosing the ideal colour from among 500 shades of red.Ĭanadian flags were made from a single piece of nylon taffeta fabric without stitching, so the coloured sections had to be dyed. Outdoors, the colours faded quickly from red to orange, and the white cloth turned a dingy gray. But the first models of our flag, flown in 1965, were failures. Canada’s flag, with its vivid red bars and iconic maple leaf, is an international symbol of Canadian identity.
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