substantive dye
water-soluble dye that adheres to a substrate, usually a textile material or leather, without the use of a mordant
en-US/ˈsʌbstəntɪv ˈdaɪ/
en-GB/ˈsʌbstəntɪv ˈdaɪ/
water-soluble dye that adheres to a substrate, usually a textile material or leather, without the use of a mordant