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      • How to Mordant Plant Fibers
      • How to Mordant with Symplocos
      • How to Mordant Cellulose Fibers with Tannin and Alum
    • Print Paste Thickener Instructions
    • How to Dye with Natural Dye Extracts
      • How to dye with Ceriops
    • How to Dye with Raw Materials
      • Cochineal Insect Instructions
      • Dye Flower Instructions
      • Logwood Chip Instructions
      • Madder Root Instructions
      • How To Dye With Marigold Flowers
      • Osage Orange Sawdust Instructions
      • Pericón Instructions
      • Safflower Instructions
      • Walnut Powder Instructions
    • How to Dye with Indigo
      • How to Make a 1-2-3 Fructose Indigo Vat
      • How to Make a 1-2-3 Shakealotta Indigo Vat
      • How to Make a 1-2-3 Iron Indigo Vat
      • How to Make a 1-2-3 Henna Indigo Vat
    • How to Dye with Fresh Indigo
    • Hide Glue Indigo Vat Instructions
    • How to Dye With Aquarelle Liquid Natural Dye
    • How-To Use Iron Powder (Ferrous Sulfate)
    • How to check pH
    • Botanical Colors Natural Dye Glossary
    • Botanical Colors FAQ
      • Frequently Asked Questions About Indigo
      • Frequently Asked Questions About Aquarelle Liquid Natural Dyes
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  • FEEDBACK FRIDAY: Indigo Vat pH, Painting & Reusing Mordant Baths

    by Amy DuFault on January 24, 2020

    This week on FEEDBACK FRIDAY: The science of pH and your indigo vat, painting with indigo flowers and reusing that mordant bath

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  • FEEDBACK FRIDAY: This Week in Natural Dye Questions

    by Amy DuFault on February 22, 2019

    This week: Botanical Colors founder Kathy Hattori with her own musings and color recipes inspired by The Art and Science of Natural Dyes by Joy Boutrup and Catharine Ellis

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  • FEEDBACK FRIDAY: This Week in Natural Dye Questions

    by Amy DuFault on June 8, 2017

    Each week, we are emailed with questions from our natural dye community asking simple and complex questions that we thought might be worth sharing. Here are a handful from this week answered by natural dyer in chief, Kathy Hattori, Founder of Botanical Colors: I have been printing with dye extracts on silk. My question is- […]

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  • FEEDBACK FRIDAY: This Week in Natural Dye Questions

    by Amy DuFault on May 5, 2017

    Each week, we are emailed with questions from our natural dye community asking simple and complex questions that we thought might be worth sharing. Here are a handful from this week answered by natural dyer in chief, Kathy Hattori, Founder of Botanical Colors: After using the 1-2-3 indigo dye vat, do you need to mordant […]

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  • FEEDBACK FRIDAY: This Week in Natural Dye Questions

    by Amy DuFault on April 21, 2017

    Each week, we are emailed with questions from our natural dye community asking simple and complex questions that we thought might be worth sharing. Here are a handful from this week answered by natural dyer in chief, Kathy Hattori, Founder of Botanical Colors: Do you have any tips on getting a crimson red on cotton […]

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  • EILEEN FISHER’s GREEN EILEEN Turns to Natural Dyes (That Means Us!)

    by Amy DuFault on March 10, 2014

    GREEN EILEEN is an initiative of the EILEEN FISHER COMMUNITY FOUNDATION, a non-profit organization that supports systematic changes that positively impact women and girls around the world. The branch is a recycled clothing program that extends the life of timeless EILEEN FISHER garments which are re-sold at both the Seattle and Irvington, New York GREEN […]

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