PPWR & Direct-to-Shape Inkjet Decorators: Label-Free Cans, Bottles & Rigid Containers
PPWR & Direct-to-Shape (D2S) Inkjet Decorators: Label-Free Cans, Bottles and Rigid Containers
Direct-to-shape inkjet decoration — UV-curable, LED-cured or water-based ink jetted straight onto an aluminium can, an HDPE detergent bottle, a PET water bottle or a PP cosmetic tub — has spent a decade as a niche promotional format. Under Regulation (EU) 2025/40 it suddenly becomes a compliance asset. A label, a shrink-sleeve and a pressure-sensitive adhesive are all add-ons that drag a recyclable mono-material container down the Annex II grade ladder. D2S removes the add-on. The unit goes back to the sorter as bare aluminium or bare PE/PP/PET, the ink film is measured in micrograms per square centimetre, and the recyclability conversation is suddenly about jetted ink chemistry rather than about adhesive residues, sleeve floatability or matrix waste.
That re-frames Articles 5, 6, 7, 10 and 39 for the D2S decorator. The press is no longer a colour engine; it is a recyclability instrument. Whether a Velox IDS line at a Crown can plant, a Krones / Dekron DecoType on a PET bottling hall, an Inkcups XJET on a cosmetic tub or a Hinterkopf D240 on a monobloc aluminium aerosol becomes the determining factor in whether a brand-owner Declaration of Conformity files a Grade A or a Grade C reference. This guide is the operator playbook for D2S decorators in 2026.
Why D2S Helps the Annex II Grade — and Where It Can Still Hurt
Annex II Table 3 grades packaging by recycled output: Grade A delivers at least 95% recyclate, Grade B at least 80%, Grade C at least 70%. Below Grade C is banned from 1 January 2030; from 2038 only A and B remain saleable. A bare aluminium beverage can without a shrink-sleeve is a textbook Grade A. A PE shampoo bottle without a sleeve, without a wrap-around label and without a foil seal is a Grade A on RecyClass REP-HDPE-CO-01 v6.1. Direct-to-shape decoration preserves that starting position. It eliminates the label substrate, the silicone-coated release liner, the rubber-based pressure-sensitive adhesive, the PVC or PETG shrink film and — in beverage canning — the matrix waste from die-cut wrap-around paper labels.
Where D2S can still hurt the grade is the ink itself. The same RecyClass Technical Review on Direct Printing on Rigid Packaging published in March 2026 ran HDPE samples with 2 wt% and 2.5 wt% UV-curable ink loads, and the curable binders, photoinitiators and dispersed organic pigments did show measurable contamination of the recyclate stream when ink load climbed above the threshold. D2S is a recyclability enabler, but only if the ink load is kept inside the limits the recyclers will tolerate, the pigments are NIR-detectable, the photoinitiators are non-migrating and the cure is full.
The D2S Decorator's Obligation Stack Under PPWR
| Obligation | PPWR Article | Deadline | What the D2S Decorator Must Do |
|---|---|---|---|
| Heavy-metal sum < 100 mg/kg (Pb + Cd + Hg + Cr VI) | Article 5 & Annex V | 1 January 2026 | Audit pigment dispersions; remove cadmium-based yellow / red / orange and lead chromate; obtain supplier declarations to the molecule level |
| PFAS ban in food-contact packaging (25 ppb single / 250 ppb sum / 50 ppm total fluorine) | Article 5 & Annex V | 12 August 2026 | Reformulate fluorosurfactant wetting agents and PTFE-based jetting fluids; document non-stick coating chemistry on the print-bar |
| Annex II Table 3 recyclability grade per construction | Article 6 & Annex II | 12 August 2026 (assessment) / 1 January 2030 (below-C ban) | Validate every can / bottle / tub + D2S ink combination against RecyClass, EPBP, EAA EN 13430, Cyclos-HTP; archive certificate per SKU |
| Declaration of Conformity per packaging unit | Article 39 & Annex VIII | 12 August 2026 | Issue DoC per SKU stating substrate, pretreatment chemistry, ink formulation, cure spec, coverage % and recyclability test report |
| Minimisation (volume & weight) | Article 10 & Annex IV | 12 August 2026 | Demonstrate that direct-to-shape ink mass is lower than the label + liner + adhesive mass it replaces; document in the minimisation file |
| Recycled-content target for plastic containers | Article 7 | 1 January 2030 (first tier) / 2040 (second tier) | D2S does not deliver rPE / rPP / rPET on its own, but enables it: jetted ink survives caustic wash; no decoration to remove from the regrind |
| Digital Product Passport data block | Article 12 | 28 August 2027 | Embed batch-level D2S print data — file, coverage %, ink lot, cure energy — in the DPP record for traceable downstream recyclate routing |
| Harmonised sorting pictogram & material code | Article 12 & Annex IX | 12 August 2028 | Print pictogram + material code (ALU 41, HDPE 02, PP 05, PET 01) inside the same D2S file — no separate label or wrap |
The Six Recyclability-Critical Decisions on a D2S Line
On every D2S printer in commercial service in 2026 — Velox IDS-NC for beverage cans, Krones / Dekron DecoType Select for PET and HDPE bottles, Hinterkopf D240 for monobloc aluminium aerosols and tubes, Inkcups XJET for cosmetic tubs, Sun Automation / Bobst for corrugated direct print, KHS Innoprint for glass — the same six decisions determine whether the resulting unit grades A, B or C.
| Decision | Grade Impact | What the Decorator Must Do |
|---|---|---|
| Ink coverage (wt% of container) | 2 wt% is the RecyClass tested threshold on HDPE; above 5 wt% almost certainly drops a grade | Re-draw promotional artwork to keep wet-ink-mass under threshold; rely on negative space and substrate colour; archive coverage calculation per SKU |
| Pigment NIR detectability | Carbon-black dark inks defeat NIR sorters; the unit is misrouted to the residual stream | Specify NIR-transparent blacks (Ampacet REC-NIR-BLACK, Cabot Plasblak NIR, Tosaf NIR-Black, Clariant Cesa-IR) in the jetting fluid; verify with TOMRA Autosort test |
| UV / LED photoinitiator chemistry | Migratable photoinitiators (ITX, benzophenone) breach food-contact migration thresholds and fail EuPIA GMP 5.0 | Migrate to low-migration LED-UV systems (Sun Chemical SunJet Etiq, hubergroup, INX, Siegwerk EcoLine, Toyo Inks); cite EuPIA Suitability List 2026 entries in the DoC |
| Cure energy & full conversion | Under-cured ink leaches into the caustic wash and contaminates rPE / rPET / rPP | Measure radiometric dose at every can / bottle position; install in-line UV dose monitors; archive cure log alongside the print file |
| Pretreatment chemistry (corona, plasma, primer) | PFAS / fluorosurfactant primers fail Article 5 and Annex V; silicone primers can contaminate flotation streams | Default to atmospheric plasma pretreatment (no consumable chemistry); if a primer is required, choose fluorine-free water-based acrylic; document molecule-level absence of PFAS |
| Overprint varnish / topcoat | A non-deinkable overprint varnish on a fibre-based or paperboard substrate kills the CEPI / 4evergreen grade | On fibre substrates restrict varnish to water-based dispersion or repulpable LED-UV; on plastic substrates skip the varnish if jetted ink offers enough scuff resistance |
The Aluminium Can-Maker Case: Velox + Crown, KHS Innoprint, Hinterkopf D240
The clearest commercial signal for D2S in 2026 is in two-piece aluminium beverage cans. A shrink-sleeve on a 33 cl beverage can is the canonical Annex II grade-killer — at 60 % or higher coverage it drives the unit into the optical-sorter reject stream. Velox's IDS-NC platform (operated by Crown Holdings) prints up to 500 cans per minute with 14 simultaneous colours and embellishments, directly onto necked cans, with no sleeve and no wrap-around. The result is a bare aluminium body decorated with a thin LED-UV ink film that survives the can-recycling smelter at temperatures above 500 °C — the binders volatilise, the pigments are filtered with the dross. The Annex II grade for the decorated unit lands at A. The same logic applies to monobloc aluminium aerosols and impact-extruded tubes decorated on the Hinterkopf D240 platform, replacing offset litho with a single digital pass that allows shorter runs without sacrificing the recyclability grade.
The PET and HDPE Bottle Case: Dekron DecoType on the Bottling Line
For PET water bottles, HDPE detergent bottles and PE personal-care bottles, the Dekron DecoType Select (a Krones subsidiary since 2018) installs as the decoration unit between the blow-moulder and the filler, running 5,000 to 36,000 bottles per hour with atmospheric plasma pretreatment and UV-cured pigment inks across glass, HDPE and PET. The line replaces three downstream operations: pressure-sensitive label application, shrink-sleeve fitment and the steam tunnel. From a PPWR standpoint, this stacks RecyClass REP-HDPE-CO-01 v6.1 (HDPE), REP-PET-CO-01 v6.0 (PET) and the EPBP Quick Test 504 / 507 sleeve and adhesive wash-off protocols all in favour of the bottler. The constraint is the ink load: keep total ink coverage below the RecyClass 2 wt% test threshold and the bottle stays Grade A; push it toward 5 wt% promotional graphics and the brand-owner is paying for a sample-tested certificate per SKU.
EuPIA GMP 5.0 and the January 2026 Migration Cliff
Direct-to-shape printing puts ink in close contact with the container exterior and — through the wall on permeable substrates — with the food, beverage or cosmetic content inside. The European Printing Ink Association's GMP 5.0 guideline became enforceable for member companies on 1 January 2026, tightening migration limits (10 ppb for non-listed substances) and expanding documentation requirements on statements of composition, technical data sheets and application suitability. D2S decorators printing food-contact, food-contact-adjacent or cosmetic packaging must move every jetting fluid onto the EuPIA Suitability List 2026 — or document the equivalent risk assessment in the Article 39 DoC file. ITX, benzophenone-class photoinitiators and migrating acrylate monomers are the priority elimination targets.
Action Plan for D2S Decorators
- Inventory every active D2S SKU against Annex II — separate the units that already land Grade A from those at risk because of ink coverage, dark-pigment NIR opacity or topcoat chemistry. Pay particular attention to dark backgrounds, high coverage promotional graphics and any unit decorated with carbon-black masterbatch.
- Cap ink coverage per SKU — make 2 wt% wet ink mass the internal design ceiling on PE, PP and PET containers and document the calculation; treat 5 wt% as the absolute cap requiring a per-SKU RecyClass certificate.
- Migrate every jetting fluid to EuPIA GMP 5.0 + Suitability List 2026 — eliminate ITX, benzophenone and migrating acrylate monomers; switch to low-migration LED-UV chemistries; pull new statements of composition from every ink supplier.
- Specify NIR-detectable dark pigments at the order-entry stage — replace conventional carbon-black blacks with REC-NIR-BLACK / Plasblak NIR / Tosaf NIR-Black / Cesa-IR equivalents on every plastic-container line.
- Eliminate PFAS in pretreatment, wetting and jetting maintenance fluids — atmospheric plasma over chemical primer where possible; water-based acrylic primers where a primer is unavoidable; molecule-level supplier declarations against the 25 ppb / 250 ppb / 50 ppm total-fluorine thresholds.
- Install in-line cure monitoring — radiometric dose at every can / bottle position, logged per shift; under-cured ink is the silent contaminant in the rPE / rPET stream.
- Build a structured per-SKU DoC pipeline — substrate, pretreatment, ink lot, coverage, cure log, recyclability certificate and DPP-ready data block, exported as machine-readable JSON or XML to brand-owner procurement portals — not as scanned PDFs.
How PPWR Connect Helps D2S Decorators
Direct-to-shape decoration is one of the few areas of PPWR where the decorator's technology choice actively improves the recyclability grade rather than dragging it down — but the upside disappears if the ink coverage drifts above the RecyClass thresholds, if pigments are not NIR-detectable, or if photoinitiators fall outside the EuPIA Suitability List. PPWR Connect gives D2S decorators a single platform to inventory every active substrate + jetting-fluid combination, run Annex II grading on the as-printed unit, intake RecyClass / EPBP / EAA EN 13430 / Cyclos-HTP test reports, track EuPIA GMP 5.0 migration evidence per ink lot, cap coverage per SKU against the wt% ceiling, and produce audit-ready Declarations of Conformity per market. Decorators use the same platform to publish machine-readable component specifications back to brand-owner customers — turning a label-replacement story into a tender-winning differentiator. With the 12 August 2026 deadline now ten weeks away, the D2S decorators that lock down ink coverage, pigment NIR detectability and photoinitiator migration today are the ones that will own the recyclability conversation when the first Article 39 DoCs are filed.