PFAS in DTF: The 10 October Deadline Nobody Is Discussing

By Kjell Karlsson|Updated September 2026|13-minute read

On 10 October 2026, a REACH restriction written with waterproof jackets in mind starts applying to clothing placed on the EU market. It caps a specific PFAS substance at 25 parts per billion. Nobody in the DTF supply chain is talking about it, and the certificate most ink suppliers hold screens for something two thousand times looser.

That is thirty days from publication. This is not a claim that your ink is non-compliant — nobody has tested it, including me. It is a claim that nobody can currently say it is compliant either, and that the question is worth one email before the date rather than after it.

What is the 10 October 2026 PFAS deadline?

Commission Regulation (EU) 2024/2462 added Entry 79 to REACH Annex XVII, restricting undecafluorohexanoic acid (PFHxA), its salts, and PFHxA-related substances. It entered into force on 10 October 2024 with transitional periods running from 18 months to five years depending on the product.

The clothing deadline is the one that matters here.

Measured in homogeneous material. Exemptions exist for certain Category III PPE, medical devices and construction textiles.

The regulation does not publish a list of banned substances. It defines them structurally — anything with a linear or branched perfluoropentyl group (C5F11) attached to another carbon, or a perfluorohexyl group (C6F13), with specific exclusions. That structural definition is deliberate. It catches precursors, because PFHxA came into wide use as the short-chain replacement for PFOA after PFOA was restricted.

Does REACH Entry 79 apply to DTF printing?

It applies to the decorated garment, not to the printing process. Entry 79 restricts placing an article on the market. A printed t-shirt sold in the EU is a textile article in clothing for the general public, which puts it squarely inside paragraph 1 of the entry.

This is worth separating from the other compliance story circulating this year. PPWR Article 5 governs food-contact packaging from 12 August 2026, and it does not touch apparel. If your work is garment decoration, PPWR is industry news and Entry 79 is the action item. Much of the compliance content published in 2026 has these the wrong way round.

The exposure is not evenly distributed

A shop doing club kit and event tees for local customers carries a theoretical risk nobody is likely to test. A shop supplying a retail brand, a workwear contract, or anything sold into a chain with a compliance department carries a real one — because that customer will eventually send a restricted substances questionnaire, and “our ink is OEKO-TEX certified” will not close it.

Does DTF ink contain PFAS?

Nobody publishes the answer, but the formulation logic points somewhere specific. DTF has a wetting problem that other textile printing processes do not, because you are not jetting onto fabric. You are jetting onto plastic.

DTF prints CMYK and white onto PET carrier film before any garment is involved. PET is a low-surface-energy substrate, and getting water-based ink to wet, spread and level on it — without beading, without dot gain, without drying in the nozzle — is the central formulation challenge of the process.

Fluorosurfactants are the standard high-performance answer to exactly that. Supplier technical literature is explicit: they are the most effective additives at reducing surface tension, can bring water-based ink formulations to roughly 18 dynes/cm at very low use rates, and are specifically recommended as wetting agents for printing on low-energy surfaces such as plastic films. Hydrocarbon surfactants reach about 30 dynes/cm and silicone about 25. Neither is close. Inkjet formulation patents put typical fluorosurfactant loading between 0.1% and 5% by weight.

The dominant commercial fluorosurfactant chemistry since the PFOA restrictions is short-chain C6 fluorotelomer. C6 fluorotelomer substances degrade to PFHxA, which is precisely why Entry 79 was drafted structurally rather than as a substance list.

Is an OEKO-TEX certificate proof of PFAS compliance?

No. OEKO-TEX runs a total fluorine screen. Entry 79 caps PFHxA specifically. Those are different measurements at very different thresholds, and passing one is not evidence about the other.

OEKO-TEX replaced its extractable organic fluorine method with a total fluorine limit of 100 mg/kg from 1 January 2024, applying across STANDARD 100, ECO PASSPORT, LEATHER STANDARD and ORGANIC COTTON. Driven by California legislation, that tightens to 50 mg/kg from June 2026. Intentional PFAS use is banned under the scheme, and textile finishing using C4 fluorotelomer alcohols or higher no longer meets requirements.

That is a real control and it is getting stricter. It is also a screen rather than a substance-specific test, and OEKO-TEX says why: PFAS comprises several thousand substances, identifying every compound is not technically feasible, so testing covers the textile-relevant PFAS defined in EN 17681-1:2025.

The arithmetic nobody puts side by side

Read the third row again. A material can return a total fluorine result well inside the 50 ppm screen and still contain PFHxA at many multiples of 25 ppb, because 25 ppb is 0.05% of the screening threshold. The intuition that low fluorine means low PFHxA simply does not hold at these limits.

The scope problem, again

There is a second layer, and it is the same distinction that runs through DTF powder certification. Since October 2025 the French PFAS requirements have been integrated into STANDARD 100, and from 1 January 2026 certified products must meet 25 ppb for each regulated PFAS substance. That is substance-specific and at the right order of magnitude.

STANDARD 100 certifies the finished article. ECO PASSPORT certifies the chemical input. Your ink supplier holds ECO PASSPORT, correctly, because that is what an ink is. Which means the substance-specific testing sits on a certification your supplier does not hold, for an article they do not make. The article is the decorated garment. You make that. And if you print onto blanks you bought, the blank’s certificate was issued before your ink was on it.

Who is liable, the ink supplier or the print shop?

Both, at different points. The supplier is placing a mixture on the market. You are placing an article on the market. Entry 79 restricts both acts, and your customer’s compliance department will address the question to whoever sold them the garment.

And this is not the only deadline running on the same chemistry.

Four jurisdictions, four different measurement bases — intentional addition, total organic fluorine, total fluorine, substance-specific ppb — and no two thresholds expressed in the same units. A supplier can truthfully claim compliance with one while saying nothing about the others, and most compliance language in this category is doing exactly that without meaning to mislead.

If you sell into France, note that yours is not a future deadline. It passed on 1 January.

What should you do before 10 October?

Send one email and keep the replies. The point is not to achieve certainty by the deadline, which is not available. It is to have asked, in writing, and to know where you stand.

Question one costs a supplier nothing but a look at their own formulation sheet. If they cannot or will not answer it, that is the informative outcome and it arrives free.

Then do four things

• File every reply, including the non-replies. A dated record showing you asked before the deadline is worth more than a certificate you cannot interpret. Note who did not answer.
• Check which OEKO-TEX programme each certificate is. ECO PASSPORT on the ink is correct and expected. It is not article-level PFAS testing and should not be represented as such.
• Ask your blank supplier separately. Their STANDARD 100 certificate covers an undecorated garment. What you print onto it is not covered by it.
• Draft one paragraph for customer questionnaires now. State what you asked, what you were told, and what remains unverified. That is a defensible position written calmly. An overclaim written under pressure is not.

Where this leaves you

A restriction written for waterproof jackets applies to decorated apparel from 10 October, on a substance class that is the standard solution to DTF’s central formulation problem, verified by a certificate that measures something else at a threshold two thousand times looser.

The likely outcome is that most DTF chemistry turns out to be fine. Pigment inks are not durable water repellents and the fluorosurfactant load is small. But “probably fine” is not a compliance position, and it is not what you tell a brand customer who asks.

If you supply DTF chemistry, there is an opening here that closes the moment somebody takes it. The first ink, film or powder supplier to publish a total fluorine result and a plain statement about surfactant chemistry owns the compliance conversation in this category for as long as the others stay quiet. It is a test and a paragraph. Set against the cost of a trade show stand, it is nothing.

And if you hold a fluorine result for a DTF product, send it. I will publish it, credited, and without commentary if you prefer.