|
TYPICAL RUNNING TENSIONS
for selected web materials
| PAPERBOARD |
8 pt. |
3.0 lb. |
|
12 pt. |
4.0 lb. |
|
15 pt. |
4.5 lb |
|
20 pt. |
5.5 lb. |
|
25 pt. |
6.5 lb. |
|
30 pt. |
8.0 lb |
PAPER
based on 3000 sq. foot ream |
15 lb. |
0.4 lb. |
|
20 lb. |
0.5 lb. |
|
30 lb |
0.75 lb. |
|
40 lb. |
1.25 lb |
|
60 lb. |
2.0 lb. |
|
80 lb. |
3.0 lb. |
|
100 lb |
4.0 lb |
|
per mil per inch of width |
|
| ACETATE |
|
0.5 lb. |
| FOIL/Aluminum |
|
0.5 lb. |
| FOIL/Copper |
|
0.5 lb. |
| CELLOPHANE |
|
0.75 lb. |
| NYLON |
|
0.25 lb. |
| POLYETHYLENE |
|
0.12 lb. |
| POLYESTER (Mylar) |
|
0.75 lb. |
| POLYPROPYLENE |
|
0.25 lb. |
| POLYSTYRENE |
|
1.0 lb. |
| SARAN |
|
0.15 lb |
| For laminated webs, sum the tensions for the individual webs and
add 0.1 lb. per inch of width. |
|
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|
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