Quick Summary
• WoolyFil uses wool-based colorants to color filament. Companies Wool Source, which makes pigments from wool, partnered with filament firm KiwiFil to develop pigments with around 92% to 98% biobased content. In...
Additional Context
WoolyFil uses wool-based colorants to color filament. Companies Wool Source, which makes pigments from wool, partnered with filament firm KiwiFil to develop pigments with around 92% to 98% biobased content. In this case, the sustainability angle is important because pigments are often made from inorganic (mineral-based) and organic (carbon-based) compounds, while most modern-day pigments are mostly synthetic and originate from petrochemical or coal-tar processes. These synthetic pigments can pollute millions of liters of wastewater during production and dyeing, they can also contain toxic heavy metals, and are often non-biodegradable. Some can also release Polycyclic Aromatic Hydrocarbons (PAHs), which can damage aquatic ecosystems. Coal tar dyes are also linked to carcinogenic effects. So