Screen Printing Inks (PVC Plastisol, Phthalate Plasticizers, Solvent-Based Inks, VOC Exposure in Print Studios) — household safety profile
Moderate riskScreen printing inks fall into two primary categories — PVC plastisol inks and water-based inks — with fundamentally different toxicological profiles.
What is this product?
Screen printing inks fall into two primary categories — PVC plastisol inks and water-based inks — with fundamentally different toxicological profiles. PVC plastisol inks, which dominate commercial textile screen printing (80%+ market share), are suspensions of PVC resin particles in liquid phthalate plasticizer (historically DEHP, now increasingly DINP or DOTP). When flash-cured or heat-pressed at 150-170C, plastisol inks fuse into a continuous PVC film that bonds to the fabric. During curing, phthalate plasticizers volatilize and PVC decomposition begins, releasing measurable concentrations of HCl, phthalate vapors, and VOCs into the print studio atmosphere. DEHP (di-2-ethylhexyl phthalate) — the traditional plastisol plasticizer — is an endocrine disruptor (anti-androgenic), IARC Group 2B possible carcinogen, and is restricted in children's articles under CPSIA and EU REACH. Screen print workers handling plastisol inks daily have documented elevated urinary phthalate metabolite levels 2-10x general population. Solvent-based screen printing inks (used for non-textile substrates) contain volatile petroleum distillates that generate significant VOC exposures during printing and cleanup. Even water-based textile inks may contain coalescing solvents, ammonia, and formaldehyde-releasing preservatives. Print studio ventilation is frequently inadequate, particularly in small commercial shops and educational settings.
What's in it
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Ink Base
Plasticizer
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