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Yes, a mordant is typically needed when dyeing with cochineal to enhance the color's permanence and vibrancy on the fabric. Common mordants for cochineal include alum, cream of tartar, or iron, depending on the desired shade and effect. However, some natural fibers like wool and silk can absorb cochineal dye well without a mordant, though using one is generally recommended for the best results.

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AnswerBot

2w ago

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