| item | surface problems | requirements |
| 1 | Bright line | None (very slight to be reviewed, batch production is not allowed) |
| 2 | Bright surface, twill, longitudinal stripe, herringbone, uneven brightness | None (very slight to be reviewed, batch production is not allowed) |
| 3 | Black and white strip, impression, roll pattern, cross pattern | White strip, mark and roller grain are allowed and slight, batch production is not allowed, no black strip and cross grain. |
| 4 | Roller print on bright surface | ≤4mm2 |
| 5 | Dark and bright | nothing |
| 6 | Black roller mark | Bright side ≤ 5mm, dark side not printed |
| 7 | Arris | nothing |
1235 8011 Aluminum foil for aseptic soft packaging pinhole requirements:
| Thickness (mm) | Number of pinholes (PCs. / m2)） | Pinhole distribution |
| 0.006 | 500 | Not allowed to be dense |
| 0.0036 | 400 | |
| 0.0065 | 300 | |
| 0.007 | 150 | |
|
Note: 1. The pinhole test is counted by 0.1mm2 * 10 times. 2. Dense, the number of pinholes in a row in any 4mm * 4mm or 1mm * 16mm area ≤ 6. |
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1235 8011 Aluminum foil for aseptic soft packaging 0.006mm thickness requirements for oil removal after annealing:
After annealing, the oil removal shall reach level a and above.
1235 8011 Aluminum foil for aseptic soft packaging 0.006mm thickness rolling performance after annealing:
The overall free development length is ≤ 0.1M, and the side free development degree is ≤ 0.3m.
1235 8011 Aluminum foil for aseptic soft packaging 0.006mm thickness mechanical properties:
Tensile strength: ≥ 70MPa, 1235 elongation: ≥ 1.0%, 8011 elongation: ≥ 1.5%.
