{"product_id":"indigo-powder-indigofera-tinctoria","title":"INDIGO PIGMENT","description":"\u003ch2\u003e\u003cstrong\u003e\u003cspan\u003eNatural Indigo Pigment\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cem\u003e\u003cspan\u003eIndigofera tinctoria · Traditional Indian Indigo · Approx. 35 - 42% Indigotin\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFrom pale sky blue to deep navy, natural indigo offers an extraordinary range of blues. This high-quality indigo is traditionally prepared in India and analytically checked to verify its natural origin.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan\u003eAt a glance\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eOrigin:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e India\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBotanical source:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003eIndigofera tinctoria\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePlant part:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Leaves, processed to extract the pigment\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eForm:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Natural indigo pigment powder\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eIndigotin content:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 35–42%\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eColours:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Pale blue through to deep navy\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFibres:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Cotton, linen, hemp, wool and silk\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMordant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Not required\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePreparation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Requires a suitable indigo vat\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Traditional pigment extraction\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eTraceability:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Batches analytically checked for natural origin\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan\u003eHow indigo works\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIndigo is an insoluble pigment - it will not dye textiles simply by being mixed with water.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor textile dyeing, it must be reduced in an alkaline indigo vat. This changes the pigment into a soluble yellow-green form that can enter the fibre. When the fibre is lifted into the air, the indigo oxidises and turns blue.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003e“100% natural indigo” refers to its natural origin - not 100% indigotin purity.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e This product contains approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e35 - 42% indigotin\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the main blue colouring component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan\u003eChoosing a vat\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eVat type\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eWhat to consider\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eFructose or sugar vat\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eA popular organic reduction method using sugar and lime. High pH can be tricky with protein fibres. Poor colourfastness.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eFermentation vat\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eA living vat that takes longer to establish but can be maintained and replenished for years.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eSig vat\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eA urine vat. It is the smelliest option, but can produce excellent colourfastness and deep indigo shades. Not recommended where neighbours may be affected by the odour.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eIron and lime vat\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eA quick mineral vat generally better suited to cellulose fibres than protein fibres.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eHydros or thiourea dioxide vat\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFast and convenient, but colourfastness is generally poorer than with fermentation or urine vats. Colour cannot usually be built up gradually through repeated dips; the desired depth of indigo is generally achieved with the first dip. Follow the safety and measurement guidance for the reducing agent.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"isSelectedEnd\"\u003e \u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eChoose a complete recipe suited to your fibre. \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eTemperature, pH and ingredient quantities vary between vat systems.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWool and silk require particular care with alkalinity, temperature and time in the vat.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan\u003eHow much to use\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe amount of indigo needed depends on:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eYour chosen vat recipe and working volume\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe size, strength and condition of the vat\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe quantity and type of fibre\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe depth of blue required\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFollow a recipe intended for natural indigo. A maintained vat can be used for several dyeing sessions and replenished when needed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor a hydros or thiourea dioxide vat, plan the amount of indigo according to the depth required in the first dip, as colour is not generally built up gradually through repeated dips in the same way as with other vat systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan\u003eBasic dyeing guide\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePrepare:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Scour the fibre thoroughly and wet it before dyeing. Indigo itself needs no mordant. Wet out the indigo powder.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBuild the vat:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Follow a complete recipe suitable for your chosen fibre and vat system.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eReduce:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Allow the vat to reduce and settle before dyeing.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eDip:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Lower the fibre gently into the liquid, avoiding splashing and touching any sediment at the bottom.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eOxidise:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Lift it out carefully and allow the colour to turn fully blue in the air.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBuild colour:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e With fermentation, sugar or urine vats, repeat the dipping and oxidation process until you reach your desired shade. With a hydros or thiourea dioxide vat, aim to achieve the desired depth with the first dip.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFinish:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rinse and wash thoroughly, following guidance appropriate to your fibre and vat.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eTip\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eBuild slowly\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWith fermentation, sugar and mineral vats, several controlled dips usually produce a better deep shades.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003ePlan hydros dips carefully\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHydros and thiourea dioxide vats generally do not build colour gradually through repeated dips. Use a suitable indigo concentration for the desired first-dip depth.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eWatch the vat\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCheck reduction and pH regularly. \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eAvoid splashing\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIntroducing excess oxygen can disturb the reduced vat.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eKeep notes\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRecord your recipe, pH, temperature, additions, dips and fibres used etc.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eLayer colours\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAlways dye your blues first, followed by mordant and colour.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\n\u003cstrong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan\u003eColourfastness\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIndigo can produce excellent lightfastness and good washfastness when properly applied and finished - Heat setting recommended.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eColourfastness varies according to the vat method. Fermentation and urine vats can produce particularly strong colourfastness and deep shades. Hydros and other chemical reducing-agent vats are convenient and fast, but generally produce poorer colourfastness.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSome surface colour may rub off, particularly with very deep shades. Controlled dipping and thorough washing can help reduce this.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan\u003eOther creative uses\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNatural indigo can also be used as a pigment with a suitable binder in:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePaints\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInks\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDecorative finishes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWoodwork\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eMixing indigo with water alone will not create a durable surface finish. Check out our Maya Blue listing if you like to use Indigo for painting.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan\u003eStorage \u0026amp; safe handling\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eStore tightly sealed, cool and dry, away from direct sunlight.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvoid breathing fine powder and prevent contact with eyes.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHandle in a well-ventilated workspace.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUse suitable particulate respiratory protection where dust cannot be adequately controlled.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWear gloves and eye protection when preparing alkaline vats.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFollow the safety instructions for every reducing agent and additive used.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUse dedicated dyeing equipment—never food-preparation utensils.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eKeep away from food, children and pets.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eFor textile dyeing and craft pigment use only - not for consumption or cosmetic use.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWhen preparing a urine vat, work outdoors and consider the effect of strong odours on neighbours.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan\u003ePackaging\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWe pack as sustainably as we can while protecting your dye materials. Pouch types may vary according to pack size and the availability of our preferred lower-impact options.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDisplay jars are not included.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan\u003eLearn with us\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eJoin \u003c\/span\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/the-natural-dyers-academy.mn.co\/\"\u003e\u003cspan\u003eThe Natural Dyers \u0026amp; Growers Academy\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003cspan\u003e to explore indigo vats, share your results and learn alongside fellow natural dyers and growers.\u003c\/span\u003e\u003c\/p\u003e","brand":"AppleOak FibreWorks","offers":[{"title":"10g","offer_id":18650974650425,"sku":"Greening","price":9.0,"currency_code":"EUR","in_stock":true},{"title":"25g","offer_id":18689272840249,"sku":"Greening","price":13.5,"currency_code":"EUR","in_stock":true},{"title":"50g","offer_id":18689272873017,"sku":"Greening","price":21.0,"currency_code":"EUR","in_stock":true},{"title":"100g","offer_id":18689272938553,"sku":"Greening","price":36.0,"currency_code":"EUR","in_stock":true},{"title":"250g","offer_id":40157431398454,"sku":"Greening","price":81.5,"currency_code":"EUR","in_stock":true},{"title":"500g","offer_id":40157431431222,"sku":"Greening","price":156.95,"currency_code":"EUR","in_stock":true},{"title":"1kg","offer_id":40157431463990,"sku":"Greening","price":307.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0098\/2918\/7641\/files\/indigo_99366b80-f9d1-4476-9ef2-888a76f4b449.jpg?v=1788885850","url":"https:\/\/appleoakfibreworks.com\/products\/indigo-powder-indigofera-tinctoria","provider":"AppleOak FibreWorks","version":"1.0","type":"link"}