Film type

Treatment

Glycerol:sorbitol

Thickness of the heat-sealing spot (micrometer)

Elongation to the breaking point (percentage)

Tensile strength of the heat-sealing spot (megapascal)

Bovine gelatin with high Bloom values containing clay nanoparticles

0:0

30:0

25:5

20:10

15:15

20:20

5:25

0:30

60

80

60

70

70

70

60

80

1.96 c

6.45 bc

13.55 bc

26.66 b

19.05 bc

57.87 a

26.63 b

27.98 b

19.13 a

14.97 ab

15.47 ab

13.79 ab

12.29 ab

10.69 bc

9.84 bc

6.44 c

Bovine gelatin with low Bloom values containing clay nanoparticles

0:0

30:0

25:5

20:10

15:15

20:20

5:25

0:30

60

60

60

70

70

70

70

60

0.98 d

4.51 cd

5.00 cd

7.06 bcd

10.32 bcd

26.10 a

16.20 abc

19.81 ab

9.35 abc

13.40 a

13.20 a

9.21 abc

11.56 ab

8.72 bc

3.42 d

5.58 cd

Fish-skin gelatin with clay nanoparticles

0:0

30:0

25:5

20:10

15:15

20:20

5:25

0:30

60

70

70

60

60

60

60

60

1.91 c

11.97 c

16.35 c

22.09 c

25.70 c

55.75 b

64.29 b

107.48 a

15.94 bc

9.56 bc

8.52 c

14.66 bc

11.71 bc

17.29 b

17.23 b

24.88 a