{"product_id":"old-fustic-dye","title":"OLD FUSTIC DYE","description":"\u003ch2\u003e\u003cstrong\u003eOld Fustic Hardwood Natural Dye\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eMaclura tinctoria · Dyer’s Mulberry · Yellowwood\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eOld fustic is a traditional hardwood dye obtained from \u003cem\u003eMaclura tinctoria\u003c\/em\u003e, a member of the mulberry family.\u003c\/p\u003e\n\u003cp\u003eIt produces bright, clear yellows and can be combined with indigo to create vibrant greens. Careful iron modification shifts the yellow towards olive, khaki and green-brown.\u003c\/p\u003e\n\u003cp\u003eFustic is a strong and economical dye material. Begin with approximately 50% WOF and retain the used wood chips, as they can often be extracted again for additional, progressively lighter dye baths.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAt a glance\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAccepted botanical name:\u003c\/strong\u003e \u003cem\u003eMaclura tinctoria\u003c\/em\u003e (L.) D.Don ex G.Don\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOlder synonyms:\u003c\/strong\u003e \u003cem\u003eChlorophora tinctoria\u003c\/em\u003e and \u003cem\u003eMorus tinctoria\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommon names:\u003c\/strong\u003e Old fustic, dyer’s mulberry and yellowwood\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePlant part:\u003c\/strong\u003e Hardwood\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eForm:\u003c\/strong\u003e Cut wood chips\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eColours:\u003c\/strong\u003e Bright yellow, gold, green, olive and khaki\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFibres:\u003c\/strong\u003e Wool, silk, cotton and linen\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMordant:\u003c\/strong\u003e Recommended; use a fibre-appropriate method\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuggested quantity:\u003c\/strong\u003e Approximately 50% WOF\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eColourfastness:\u003c\/strong\u003e Poor to moderate\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReusable:\u003c\/strong\u003e The wood chips may be extracted more than once\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVegan:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eHow much to use\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eFor a bright, clear yellow, begin with:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e50g fustic hardwood per 100g dry fibre\u003c\/strong\u003e\u003cbr\u003eEquivalent to \u003cstrong\u003e50% WOF - weight of dry fibre\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a paler yellow, use less material or work with a later exhaust bath.\u003c\/p\u003e\n\u003cp\u003eDeeper shades may be developed by using more fustic, extending the extraction, leaving the fibre in the cooling bath or combining the first and second wood extractions.\u003c\/p\u003e\n\u003cp\u003eThese quantities are starting points. Results vary according to the fibre, mordant, water chemistry, extraction method, temperature and processing time.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eColour possibilities\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMethod\u003c\/th\u003e\n\u003cth\u003ePossible result\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApproximately 50% WOF\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBright, clear yellow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStronger or repeated bath\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDeeper yellow to warm gold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverdyeing indigo\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClear, vibrant green\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight iron modification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOlive, khaki or green-brown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLater exhaust bath\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSofter yellow and pale gold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch2\u003e\u003cstrong\u003eBasic guide for wool\u003c\/strong\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMordant:\u003c\/strong\u003e Scour the wool and mordant with approximately \u003cstrong\u003e10% alum WOF\u003c\/strong\u003e, or follow your preferred wool-mordanting method. The wool may be left in the cooling mordant bath overnight.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSoak:\u003c\/strong\u003e Cover the fustic wood chips with hot water and leave overnight.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExtract:\u003c\/strong\u003e Heat the soaked wood and liquid gently at approximately \u003cstrong\u003e80–85°C (176–185°F)\u003c\/strong\u003e for about one hour.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStrain:\u003c\/strong\u003e Strain the dye liquid through a cloth and retain the wood chips for another extraction.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDye:\u003c\/strong\u003e Add the rinsed, thoroughly wetted wool and hold the bath at approximately \u003cstrong\u003e85°C (185°F)\u003c\/strong\u003e for one hour.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDevelop:\u003c\/strong\u003e Turn off the heat and allow the fibre to cool in the bath. Leave overnight if a deeper shade is required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Remove the fibre, rinse thoroughly and wash gently.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eProtein and cellulose fibres require different preparation.\u003c\/p\u003e\n\u003cp\u003eDyeing cotton, linen or another cellulose fibre? \u003ca href=\"https:\/\/appleoakfibreworks.com\/blogs\/news\/how-to-mordant-linen-and-cotton-fabrics-successfully\"\u003eFind suitable preparation and mordanting methods here.\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eReusing the wood chips\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eFustic hardwood can continue to release colour after its first extraction.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003eRetain the strained wood chips.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDry them thoroughly if they will be stored.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLabel them as previously extracted.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCover them with fresh water when ready to reuse.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSimmer for approximately 45 minutes to one hour.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStrain and use the liquid for a second dye bath.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eRepeated extractions will generally become progressively lighter. Several extractions may be combined to create a stronger bath.\u003c\/p\u003e\n\u003cp\u003eNever store damp wood chips in a sealed container, as they may develop mould.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eOld Fustic Hardwood Natural Dye\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eMaclura tinctoria · Dyer’s Mulberry · Yellowwood\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eOld fustic is a traditional hardwood dye obtained from \u003cem\u003eMaclura tinctoria\u003c\/em\u003e, a member of the mulberry family.\u003c\/p\u003e\n\u003cp\u003eIt produces bright, clear yellows and can be combined with indigo to create vibrant greens. Careful iron modification shifts the yellow towards olive, khaki and green-brown.\u003c\/p\u003e\n\u003cp\u003eFustic is a strong and economical dye material. Begin with approximately 50% WOF and retain the used wood chips, as they can often be extracted again for additional, progressively lighter dye baths.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAt a glance\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAccepted botanical name:\u003c\/strong\u003e \u003cem\u003eMaclura tinctoria\u003c\/em\u003e (L.) D.Don ex G.Don\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOlder synonyms:\u003c\/strong\u003e \u003cem\u003eChlorophora tinctoria\u003c\/em\u003e and \u003cem\u003eMorus tinctoria\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommon names:\u003c\/strong\u003e Old fustic, dyer’s mulberry and yellowwood\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePlant part:\u003c\/strong\u003e Hardwood\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eForm:\u003c\/strong\u003e Cut wood chips\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eColours:\u003c\/strong\u003e Bright yellow, gold, green, olive and khaki\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFibres:\u003c\/strong\u003e Wool, silk, cotton and linen\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMordant:\u003c\/strong\u003e Recommended; use a fibre-appropriate method\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuggested quantity:\u003c\/strong\u003e Approximately 50% WOF\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eColourfastness:\u003c\/strong\u003e Poor to moderate\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReusable:\u003c\/strong\u003e The wood chips may be extracted more than once\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVegan:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eHow much to use\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eFor a bright, clear yellow, begin with:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e50 g fustic hardwood per 100 g dry fibre\u003c\/strong\u003e\u003cbr\u003eEquivalent to \u003cstrong\u003e50% WOF—weight of dry fibre\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a paler yellow, use less material or work with a later exhaust bath.\u003c\/p\u003e\n\u003cp\u003eDeeper shades may be developed by using more fustic, extending the extraction, leaving the fibre in the cooling bath or combining the first and second wood extractions.\u003c\/p\u003e\n\u003cp\u003eThese quantities are starting points. Results vary according to the fibre, mordant, water chemistry, extraction method, temperature and processing time.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eColour possibilities\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMethod\u003c\/th\u003e\n\u003cth\u003ePossible result\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApproximately 50% WOF\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBright, clear yellow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStronger or repeated bath\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDeeper yellow to warm gold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverdyed with indigo\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClear, vibrant green\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight iron modification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOlive, khaki or green-brown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLater exhaust bath\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSofter yellow and pale gold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe order of dyeing affects the final green. Applying indigo over fustic or fustic over indigo can produce different balances of yellow and blue.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBasic guide for wool\u003c\/strong\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMordant:\u003c\/strong\u003e Scour the wool and mordant with approximately \u003cstrong\u003e10% alum WOF\u003c\/strong\u003e, or follow your preferred wool-mordanting method. The wool may be left in the cooling mordant bath overnight.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSoak:\u003c\/strong\u003e Cover the fustic wood chips with hot water and leave overnight.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExtract:\u003c\/strong\u003e Heat the soaked wood and liquid gently at approximately \u003cstrong\u003e80–85°C (176–185°F)\u003c\/strong\u003e for about one hour.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStrain:\u003c\/strong\u003e Strain the dye liquid through a cloth and retain the wood chips for another extraction.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDye:\u003c\/strong\u003e Add the rinsed, thoroughly wetted wool and hold the bath at approximately \u003cstrong\u003e85°C (185°F)\u003c\/strong\u003e for one hour.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDevelop:\u003c\/strong\u003e Turn off the heat and allow the fibre to cool in the bath. Leave overnight if a deeper shade is required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Remove the fibre, rinse thoroughly and wash gently.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eProtein and cellulose fibres require different preparation.\u003c\/p\u003e\n\u003cp\u003eDyeing cotton, linen or another cellulose fibre? \u003ca href=\"https:\/\/appleoakfibreworks.com\/blogs\/news\/how-to-mordant-linen-and-cotton-fabrics-successfully\"\u003eFind suitable preparation and mordanting methods here.\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eReusing the wood chips\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eFustic hardwood can continue to release colour after its first extraction.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003eRetain the strained wood chips.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDry them thoroughly if they will be stored.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLabel them as previously extracted.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCover them with fresh water when ready to reuse.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSimmer for approximately 45 minutes to one hour.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStrain and use the liquid for a second dye bath.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eRepeated extractions will generally become progressively lighter. Several extractions may be combined to create a stronger bath.\u003c\/p\u003e\n\u003cp\u003eNever store damp wood chips in a sealed container, as they may develop mould.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCREATING GREEN WITH INDIGO\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eFustic produces particularly useful greens when applied over indigo-dyed fibre.\u003c\/p\u003e\n\u003cp\u003eBegin by dyeing the prepared fibre with indigo. Use one or more controlled dips, allowing the fibre to oxidise completely between each dip, until the required depth of blue is reached.\u003c\/p\u003e\n\u003cp\u003eRinse and finish the indigo-dyed fibre thoroughly. Mordant it using a method appropriate to the fibre, then apply the fustic yellow.\u003c\/p\u003e\n\u003cp\u003eA pale indigo base followed by a strong fustic bath generally produces a brighter green. A deeper indigo base creates darker, cooler blue-green shades.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe final colour depends on:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• The depth of the indigo base\u003cbr\u003e• The strength and condition of the indigo vat\u003cbr\u003e• The number of indigo dips\u003cbr\u003e• The strength of the fustic bath\u003cbr\u003e• The mordant\u003cbr\u003e• The fibre\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eModifying with iron\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eIron can shift fustic yellow towards olive, khaki, moss green and green-brown.\u003c\/p\u003e\n\u003cp\u003eBegin with approximately \u003cstrong\u003e1-3% iron WOF\u003c\/strong\u003e in a separate, diluted afterbath. Increase only if necessary.\u003c\/p\u003e\n\u003cp\u003eExcessive iron can make fibres harsh or brittle. Test a small sample, observe the colour continuously and remove the fibre as soon as the desired shade develops.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eTips from the dye pot\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTip\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoak overnight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThis helps begin the extraction before heating.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBegin with 50% WOF\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFustic is a strong dye material, so this is a useful starting point.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse alum for clarity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlum generally produces a clearer and brighter yellow.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRetain the wood\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThe chips may produce additional colour in later extractions.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDry before storage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePreviously extracted wood must be completely dry before it is stored.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBuild green gradually\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEstablish the depth of blue first, then overdye with fustic.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse iron sparingly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA small amount can cause a substantial colour shift.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKeep notes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRecord the WOF, mordant, extraction time, temperature, modifiers and indigo dips.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003eColourfastness\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eOld fustic’s colourfastness ranges from poor to moderate and depends on the fibre, mordant, dye concentration, depth of shade and aftercare.\u003c\/p\u003e\n\u003cp\u003eAlum-mordanted yellows generally perform better than unmordanted shades, but fading may occur through prolonged exposure to strong light or repeated washing.\u003c\/p\u003e\n\u003cp\u003eFustic greens combine two dyes, so their performance depends on both the fustic layer and the method used to apply the indigo.\u003c\/p\u003e\n\u003cp\u003eSample and test when permanence is important. Protect finished work from strong, direct sunlight and wash gently when necessary.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eStorage and safe handling\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eStore tightly sealed, cool and dry, away from direct sunlight.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDry previously extracted wood thoroughly before storing it.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFor textile dyeing and craft use only.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNot for consumption or use in food, drinks, cosmetics or herbal preparations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAvoid creating or breathing wood dust and fine particles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePrevent contact with eyes, mouth and open wounds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWear suitable protective equipment when handling dusty material.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFollow the safety instructions for all mordants, iron and indigo-vat ingredients used.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUse iron sparingly, as excessive iron can damage textile fibres.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUse dedicated dyeing equipment—never food-preparation utensils.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeep away from food, children and pets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFor textile dyeing and craft use only - not for consumption.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat you receive\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eYour chosen net weight of cut old fustic hardwood, supplied in a pouch.\u003c\/p\u003e\n\u003cp\u003eNatural variations in chip size, colour and appearance should be expected.\u003c\/p\u003e\n\u003cp\u003eMordants, iron, indigo and other dyeing supplies are sold separately.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePackaging\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisplay jars and props are not included.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eLearn with us\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eJoin \u003ca href=\"https:\/\/the-natural-dyers-academy.mn.co\/\"\u003e\u003cstrong\u003eThe Natural Dyers \u0026amp; Growers Academy\u003c\/strong\u003e\u003c\/a\u003e to share your results and explore natural colour alongside fellow natural dyers and dye-plant growers.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"AppleOak FibreWorks","offers":[{"title":"50g","offer_id":32814424064054,"sku":"33902","price":8.0,"currency_code":"EUR","in_stock":true},{"title":"75g","offer_id":32814424096822,"sku":"33902","price":8.95,"currency_code":"EUR","in_stock":true},{"title":"100g","offer_id":32814424129590,"sku":"33902","price":9.95,"currency_code":"EUR","in_stock":true},{"title":"250g","offer_id":49856692355408,"sku":null,"price":15.95,"currency_code":"EUR","in_stock":true},{"title":"500g","offer_id":32814448345142,"sku":"33902","price":25.5,"currency_code":"EUR","in_stock":true},{"title":"1kg","offer_id":32814449623094,"sku":"33902","price":44.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0098\/2918\/7641\/files\/Fustic.jpg?v=1790160171","url":"https:\/\/appleoakfibreworks.com\/products\/old-fustic-dye","provider":"AppleOak FibreWorks","version":"1.0","type":"link"}