Dialkylketones (C16-C18 DAKs) migration from paper or board
Alkyl ketene dimers (AKD) are used as hydrophobic sizing agents in paper and board to improve water resistance. However, AKDs not bound by the fiber matrix can hydrolyse into dialkyl ketones (DAKs).
For paper and board intended for food contact, BfR recommendation XXXVI states that DAK transfer into foodstuff may not exceed 5 mg/kg food.
The package includes an analysis of the following substances from a food simulant:
Substance | Structure | CAS No |
|---|---|---|
16-Hentriacontanone (palmitone) | C31H62O | 502-73-8 |
16-Tritriacontanone | C33H66O | 15740-35-9 |
18-Pentatriacontanone (stearone) | C35H70O | 504-53-0 |
The analysis can be performed with the following simulants and approaches:
Food simulant | Type of testing | Applicable standard |
|---|---|---|
Iso-octane | Conventional migration | EN 13130-1 |
Iso-octane | Solvent extraction | EN 15519 |
Tenax | Conventional migration | EN 14338 |
- Suitable sample matrices
- Paper and board for food contact
- Required sample quantity
- Film: 2xA4-size sheets (migration), 30 grams (extraction)
- Typical turnaround time
- 4 weeks after receiving the samples
- Available quality systems
- Accredited testing laboratory
- Device types
- Standard
- Method expert
Price
We also charge a 97 € service fee per order.
Large batches of samples are eligible for discounts.
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