Validation of packing

Can any one explain packing validation ,why it is required.

Each & every process must be validated before its commercial or at the time of commercialization because packaging play important role for its Quality material attribute along with several other key areas i.e. packaging equipment, packaging line layouts,training for packaging process.

1.Packing validation is required to Standardise the packing process also regulatory requirements.
2.To avoid hit and trail method during packing process
3.To have a specified Known Critical process parameters like-Temperature and speed
4.To prevent any defects while packing based on AQL Checks.
5.To produce finished product of good quality and without any cosmetic defects.

Validation is required when ever contamination is possible and can’t remove before final product