{"title":"Alum \u0026 Iron Mordants","description":"\u003cp\u003eAlum and iron are the two essential metal mordants in natural dyeing and eco printing. \u003ca href=\"\/es\/products\/aluminium-potassium-sulphate-mordant-modifiers\"\u003ePotassium alum\u003c\/a\u003e keeps colors clear and bright on wool, silk, cotton and linen. \u003ca href=\"\/es\/products\/iron-ferrous-sulphate\"\u003eIron (ferrous sulphate)\u003c\/a\u003e is used in small amounts to \"sadden\" colors: yellows turn olive, reds turn plum and tannins turn grey or black. The \u003ca href=\"\/es\/products\/cellulose-mordant-kit-cotton-linen\"\u003ecellulose mordant studio kit\u003c\/a\u003e bundles the steps for plant fibers.\u003c\/p\u003e\n\u003ch2\u003eHow to mordant with alum\u003c\/h2\u003e\n\u003cp\u003eWeigh your dry fiber, dissolve alum (typically 10–15% of fiber weight for wool, often with \u003ca href=\"\/es\/products\/cream-of-tartar\"\u003ecream of tartar\u003c\/a\u003e) in hot water, add the wet fiber and heat gently for about an hour. For cotton and linen, apply a \u003ca href=\"\/es\/collections\/natural-tannins\"\u003etannin\u003c\/a\u003e first, then alum.\u003c\/p\u003e\n\u003ch2\u003eUsing iron as a modifier\u003c\/h2\u003e\n\u003cp\u003eAdd iron after dyeing in a separate, weak bath, at 1–2% of fiber weight. In eco printing, a light iron blanket or dip makes leaf prints darker and sharper. Too much iron can make wool harsh, so start low and rinse well.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eCan I use alum and iron together?\u003c\/h3\u003e\n\u003cp\u003eYes. Alum is the base mordant, and iron is used afterwards as a modifier to darken and deepen color.\u003c\/p\u003e\n\u003ch3\u003eIs iron safe for wool and silk?\u003c\/h3\u003e\n\u003cp\u003eIn small amounts, yes. Keep the bath weak and the time short to protect protein fibers.\u003c\/p\u003e\n\u003ch3\u003eWhich alum is best for cotton?\u003c\/h3\u003e\n\u003cp\u003ePotassium alum works well after a tannin bath. The cellulose mordant kit gives you a tested method for cotton and linen.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExplore more:\u003c\/strong\u003e \u003ca href=\"\/es\/collections\/mordants-and-assists\"\u003eAll Mordants \u0026amp; Assists\u003c\/a\u003e · \u003ca href=\"\/es\/collections\/dye-assists-and-modifiers\"\u003eDye Assists \u0026amp; Modifiers\u003c\/a\u003e\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Can I use alum and iron together?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Alum is the base mordant, and iron is used afterwards as a modifier to darken and deepen color.\"}}, {\"@type\": \"Question\", \"name\": \"Is iron safe for wool and silk?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"In small amounts, yes. Keep the bath weak and the time short to protect protein fibers.\"}}, {\"@type\": \"Question\", \"name\": \"Which alum is best for cotton?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Potassium alum works well after a tannin bath. The cellulose mordant kit gives you a tested method for cotton and linen.\"}}]}\u003c\/script\u003e","products":[{"product_id":"iron-ferrous-sulphate","title":"Sulfato ferroso de hierro","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv data-mce-fragment=\"1\" class=\"wt-mb-xs-2\"\u003e\n\u003cdiv data-mce-fragment=\"1\" data-component=\"listing-page-title-component\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eEl hierro (sulfato ferroso) se usa solo como mordiente, influye en los colores y aumenta la solidez a la luz cuando se usa en combinación con otros tintes naturales.\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" data-component=\"listing-page-title-component\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" class=\"wt-mb-xs-3\" data-buy-box-region=\"price\"\u003e\n\u003cdiv data-mce-fragment=\"1\" class=\"wt-display-flex-xs wt-align-items-center wt-justify-content-space-between\"\u003e\n\u003cdiv data-mce-fragment=\"1\" class=\"wt-display-flex-xs wt-align-items-center wt-justify-content-space-between wt-width-full\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"themazi","offers":[{"title":"50 gramos","offer_id":37076109983901,"sku":"IRON50","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/1990\/2109\/products\/IMG_6402.jpg?v=1635021433"},{"product_id":"aluminium-potassium-sulphate-mordant-modifiers","title":"Sulfato De Aluminio Y Potasio (Alum - Allum)","description":"\u003ch3\u003e\u003cstrong\u003eAlumbre, sulfato de aluminio y potasio para el proceso de tinte natural \u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\" data-mce-style=\"font-weight: 400;\"\u003eEl sulfato de aluminio y potasio, nombre común Alumbre, también conocido como sulfato de potasio y aluminio (PAS) es un mordiente que se puede usar para teñir todos los textiles: algodón, lana, seda, etc. Para fibras de celulosa como algodón, lino, cáñamo, bambú, se Es útil tratar con un tanino antes del paso de alumbre. Puedes encontrar nuestro blog sobre desengrasado y mordiente \u003ca style=\"font-weight: 400;\" href=\"https:\/\/themazi.com\/blogs\/news\/how-to-prepare-fiber-fabric-for-natural-dyeing\"\u003eaquí \u003c\/a\u003e\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\" data-mce-style=\"font-weight: 400;\"\u003eantes de teñir con tintes naturales.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\" data-mce-style=\"font-weight: 400;\"\u003eLos mordientes son útiles para asegurar que los colores de los tintes vegetales naturales se fijen a la fibra y produzcan colores más fuertes. También ayudan a mejorar la solidez a la luz y al lavado de los tintes. El uso de diferentes mordientes con la misma fibra también puede dar como resultado diferentes tonos de color del mismo baño de tinte.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\" data-mce-style=\"font-weight: 400;\"\u003ePara usar alumbre solo: disuelva el alumbre en agua caliente, luego agregue tela\/fibra agria al baño de mordiente y déjelo durante varias horas o toda la noche, revolviendo ocasionalmente. Se recomienda utilizar alumbre entre 10-15% Peso de Fibra\/Tejido (WOF).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eBuscar: Alumbre | Sulfato de potasio y aluminio |PAS |Tinte natural | Tanino natural | Tinte botánico | Colorantes naturales | Tinte a base de plantas | Cómo teñir algodón | Cómo teñir lana | Mordiente natural | Tejido teñido naturalmente \u003c\/b\u003e\u003c\/p\u003e","brand":"themazi","offers":[{"title":"Crystals \/ 100 g (3.5 oz)","offer_id":44226202075370,"sku":"","price":7.9,"currency_code":"USD","in_stock":true},{"title":"450 gramos","offer_id":43365180244202,"sku":"","price":18.9,"currency_code":"USD","in_stock":true},{"title":"Crystals \/ 1 kg (2.2 lb)","offer_id":44226202108138,"sku":"","price":28.9,"currency_code":"USD","in_stock":true},{"title":"Powder \/ 100 g (3.5 oz)","offer_id":45856244138218,"sku":null,"price":8.9,"currency_code":"USD","in_stock":true},{"title":"Powder \/ 450 gramos","offer_id":45856244170986,"sku":null,"price":19.9,"currency_code":"USD","in_stock":true},{"title":"Powder \/ 1 kg (2.2 lb)","offer_id":45856244203754,"sku":null,"price":29.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/1990\/2109\/files\/themazi-alum-potassium-aluminium-sulphate-mordant-dye-assistant.jpg?v=1771528782"},{"product_id":"cellulose-mordant-kit-cotton-linen","title":"Cellulose Mordant Studio Kit","description":"\u003cdiv\u003e\u003cspan\u003eA complete mordanting kit for cotton, linen and other cellulose fibers.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eDesigned around our recommended mordanting ratios, this kit contains the materials needed to prepare up to approximately 4 kg (8.8 lb) of cellulose fiber for natural dyeing.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eINCLUDED:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e• 400 g White Oak Gall Powder (Tannin)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e• 600 g Alum Powder\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e• 100 g Sodium Carbonate (Soda Ash)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eWHY THIS KIT:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e• Correctly balanced quantities — no guesswork\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e• Suitable for cotton, linen, hemp and other cellulose fibers\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e• Enough materials for up to approximately 4 kg (8.8 lb) of fiber\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e• Better value than purchasing the components separately\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e• Ideal for natural dyers, textile studios and small-batch production\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eHOW IT WORKS:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e1. Pre-treat the cellulose fiber with White Oak Gall tannin.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e2. Mordant with alum.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e3. Use soda ash as directed in the mordanting process.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e4. Continue with your chosen natural dye.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eThe exact amount of fiber that can be treated may vary depending on the recipe, fiber type and process used.\u003c\/span\u003e\u003c\/div\u003e","brand":"themazi","offers":[{"title":"Default Title","offer_id":46226899435754,"sku":null,"price":72.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/1990\/2109\/files\/THEMAZ_Cellulose_Mordant_Studio_Kit_for_cotton_linen_and_other_cellulose_fibers.webp?v=1788363056"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/1990\/2109\/collections\/alum-crystals-potassium-aluminium-sulphate-bowl-themazi.jpg?v=1792531451","url":"https:\/\/themazi.com\/es\/collections\/alum-iron-mordants.oembed","provider":"themazi","version":"1.0","type":"link"}