Table 3 Material identification of the analysed samples

DL06

1

Cellulose, lignin

2

Melamine formaldehyde resin, Pigment Red 122 (PR112, monoazo pigment, Naphthol AS), rutile (TiO₂, titanium white)

DL09

1

Cellulose, lignin

2

Melamine formaldehyde, cellulose

3

Melamine formaldehyde, cellulose

DL12

1

Melamine formaldehyde, cellulose, PR112

2

Cellulose, lignin

3

4

Cellulose, lignin

5

Urea formaldehyde resin, cellulose, thiocyanates

6

Melamine formaldehyde, cellulose, PR112

DL15

1

Cellulose, lignin

2

Rutile (titanium white), melamine formaldehyde

3

Melamine formaldehyde resin, cellulose

DL16

1

Cellulose, lignin

2

Rutile (titanium white), melamine formaldehyde

3

Melamine formaldehyde resin, cellulose

DL18

1

Cellulose, lignin

2

Rutile (titanium white), melamine formaldehyde, cellulose

3

Melamine formaldehyde, cellulose

DL20

1

Cellulose, lignin

2

Rutile (titanium white), melamine formaldehyde

3

Melamine formaldehyde, cellulose, zinc sulphide (ZnS)

DL22

1

Melamine formaldehyde resin, cellulose, lipid component, PR112

2

Melamine formaldehyde resin, cellulose, lipid component, PR112

DL24

1

Cellulose, lignin

2

Melamine formaldehyde resin, cellulose

3

Melamine formaldehyde resin, cellulose, PG8

4

Melamine formaldehyde resin, cellulose