Illustrative situation
A brand wants a soft print on dark hoodies and asks a printer for water-based ink, but the printer says the colours will be dull and recommends plastisol. The brand wonders how the two inks differ and what to ask for.
Main answer
Plastisol is a PVC-based ink that sits on the fabric surface with opaque colour and strong durability, while water-based ink soaks into the fibres for a softer, breathable feel but can look dull on dark garments. Choose by handfeel, opacity, durability and compliance needs, and ask for wash results and chemical documents.
Plastisol
Plastisol is a PVC-based ink that cures with heat and forms a layer on the surface. It gives vivid, opaque colour, works on dark garments and many fabrics, and is durable. The print feels thicker, and large areas can feel plasticky, though soft-hand additives reduce this. It can crack if overheated or stretched.
Water-based ink
Water-based ink uses water as the carrier and soaks into the fibres, so the print feels soft and breathable, and fits vintage looks. On dark fabric it can look transparent unless discharge or a special process is used. It suits cotton best and needs careful curing. Colour range and opacity can be limited.
Durability and care
Both can last when properly applied and cured, and both depend on the printer. Plastisol resists washing well but can crack with heat and stretch. Water-based prints can fade with washing, since the ink is part of the fibre. Ask for wash tests on your fabric and colour, and set care instructions to match.
Discharge and other options
Discharge ink removes dye from the fabric as it prints, leaving a soft print on dark cotton, but it only works on certain dyes. Silicone and soft-hand plastisol are other options. Ask the printer which suits your fabric and colour.
Compliance
Inks must meet restricted substance rules in your market. ECHA publishes the list of restricted substances under REACH, and some plastisol additives, such as certain phthalates, are subject to restrictions in some regions. Ask the printer for ink data and test reports, and say which markets you sell to. See T-shirt decoration quality and puff print durability.
Fact, recommendation, uncertainty
- Established fact
- ECHA publishes the list of substances restricted under REACH, and ink chemistry must comply in markets where it applies.
- Recommendation
- Choose plastisol for opaque, durable colour and water-based for a soft feel, and request wash tests and chemical documents.
- Uncertainty
- Performance depends on the ink formulation and printer, so test your own.
Sources and further reading
Sources checked on 24 October 2026. Standards bodies sell the full texts; we cite what their public pages state. General information, not legal or technical certification advice.
More perspectives from the team
Three further views on the same question, each by function. They add conditions and limits to the main answer; they are editorial notes, not customer reviews.
Sino Finetex Editorial Team Sourcing
Ask the printer for the ink supplier and safety data. Limit: a printer may switch inks between jobs unless the spec says otherwise. Ask whether the printer can supply a test print on your actual garment colour.
Sino Finetex Editorial Team Product selection
Use water-based ink on light cotton and plastisol where opacity matters. Limit: the choice may change the look of the product. Choose water-based or discharge for a soft vintage feel on cotton.
Sino Finetex Editorial Team Quality & care
Wash samples and check crack, fade and feel against the approved one. Limit: testing on a different colour of garment does not apply. Check the colour match of the print under daylight before bulk.
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