aromatic amine levels from a selection of laminaTES
Free aromatic amine values in weeks after lamination    Expressed in g/100ml Extraction: 2 hours - 70 c  3% Acetic Acid 
n.t. - not tested    t.d. - test discontinued    t.d.t.a. - test discontinued - target achieved    n.m.t.m. - no more test material

STRUCTURE

ADHESIVE

TYPE

APPLICA-
TION TEMP

1 WEEK

2 WEEKS

3 WEEKS

4 WEEKS

5 WEEKS

10 WEEKS

15 WEEKS

PET Plain/WHITE
LDPE +4% EVA

1B

2 Component 
Solvent Free

23-40C

6,5 g

 

 

5,4 g

 

 

5,4 g

PET Plain/WHITE
LDPE +4% EVA

1B

2 Component
Solvent Free

23-40C

6,5 g

 

 

5,4 g

 

 

5,4 g

OPA/LDPE

1B

2 Component
Solvent Free

23-40C

> 6 g

> 6 g

2,65 g

1,63 g

 

 

 

OPA/WHITE LDPE

5B

2 Component
Solvent Free

23-40C

 

 

 

 

 

 

3,2 g after
40 weeks

PETm/LDPE

6B

2 Component
Solvent Free

23-40C

 

 

 

 

 

 

1,5 g after
49 weeks

PA/PE

6B

2 Component
Solvent Free

23-40C

 

 

5,4 g

n.m.t.m.

 

 

 

CPA/LDPE

7B

2 Component
Solvent Free

35 C

> 100,0 g

65,0 g

n.m.t.m.

 

 

 

                        

PET/PE

8B

2 Component
Solvent Free

65 C

                   

                    

                    

                   

                    

                    

0,61 g after
26 weeks

PET/ALU//CPP

9B

2 Component
Solventbased

NCO
TERMINATED 

 

 

 

 

 

 

0,80 g after
40 weeks

PET/ALU//LDPE

10B

2 Component
Solventbased

NCO
TERMINATED

 

 

 

 

 

 

0,61 g after
40 weeks

PET/ALU//LDPE

11B

2 Component
Solventbased

OH
TERMINATED

 

 

 

 

 

 

0,42 g after
40 weeks

CPA/White EVA +2% Curex  PE50

1B

2 Component
Solvent Free

35 C

0,96 g

0,96 g

t.d.t.a.

 

 

 

 

CPA/LDPE + 2%
Curex PE 50

12B

2 Component
Solvent Free

35 C

0,16 g

t.d.t.a.

 

 

 

 

 

OPP/LDPE + 2%
Curex PE 50

12B

2 Component
Solvent Free

35 C

0,12 g

t.d.t.a.

 

 

 

 

 

CPA/LDPE+ 2%
Curex PE 50

3B

2 Component
Solvent Free

65 C

 

0,15 g

t.d.t.a.

 

 

 

 

 

PRIMARY AROMATIC AMINE VALUES IN TIME AFTER LAMINATION WITH AND WITHOUT CUREX PE 50
Expressed in g/100ml Extraction: 2 hours - 70 C 3% Acetic Acid -

LAMINATE

ADHESIVE

AMINES
24 h
g/100ml

AMINES
48 h
g/100ml

AMINES
10 days
g/100ml

AMINES
14 days
g/100ml

AMINES
17 days
g/100ml

AMINES
20 days
g/100ml

AMINES
29 days
g/100ml

AMINES
42 days
g/100ml

OPA/LDPE

A1
Solventfree

26,7

13,03

0,46

< 0,2

-

-

-

-

OPA/LDPE + Curex PE 50

A1
Solventfree

0,22

< 0,2

-

-

-

-

-

-

OPA/LDPE

A2
Solventfree

206,6

170,12

19,8

12,6

3,92

2,44

0,87

0,35

OPA/LDPE + Curex PE 50

A2
Solventfree

51,2

35,43

2,36

1,76

1,52

1,13

1,00

0,52

OPA/LDPE

A3
Solventfree

159,4

136,89

9,28

11,6

7,93

5,84

5,80

1,44

OPA/LDPE + Curex PE 50

A3
Solventfree

26,3

17,62

2,14

1,53

1,59

1,24

-

1,36

OPA/LDPE

A4
Solventfree

59,0

24,49

0,32

< 0,2

-

-

-

-

OPA/LDPE + Curex PE 50

A4
Solventfree

< 0,2

-

-

-

-

-

-

-

OPA/LDPE

A5
Solventfree

4,18

1,08

< 0,2

-

-

-

-

-

OPA/LDPE + Curex PE 50

A5
Solventfree

0,59

0,46

< 0,2

-

-

-

-

-

OPA/LDPE

A6
Solventfree

0,60

< 0,2

-

-

-

-

-

-

OPA/LDPE + Curex PE 50

A6
Solventfree

< 0,2

-

-

-

-

-

-

-

OPA/LDPE

B 6
Solventfree

35,0

-

11,0

-

-

-

-

-

OPA/LDPE + Curex PE 50

B 6
Solventfree

1,0

-

0,8

-

-

-

-

-

PETm/LDPE

B 6
Solventfree

49,0

16,0

3,0

-

-

-

-

-

PETm/LDPE + Curex PE 50

B 6
Solventfree

22,0

1,6

1,3

-

-

-

-

-