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

Price

Typical price range (Excl. VAT):
285–417 €per sample

We also charge a 97 € service fee per order.

Large batches of samples are eligible for discounts.

Questions? We're happy to help.

Questions? We're happy to help.

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