Polypropylene (PP) Lamination for Shopping Bags and Retail Packaging
Lamination:
- Available in a gloss or matte finish
- Adds a considerable amount of strength and prevents tearing and cracking
- Acts as a moisture barrier and prevent inks from rubbing off
- Adds rigidity
- Matte lamination scuffs more than gloss
- Lamination is NOT ENVIRONMENTALLY FRIENDLY mixing two different materials that cannot be recycled
- When printing on the inside of a bag (sheet) and lamination on the outside bag, certain problems can result
- There are two basis styles of the laminating process: water process and heat process. Water process takes longer to dry and is not a good system where press approvals are required.
- Lamination will often change the image color and affects color reproduction, sometimes adding a yellow or blue hue. Care should be used on very sensitive color jobs including four color process. A good pressman can some times compensate for the lamination but this is an art and not an exact process.
Lamination Processes
Conventional Laminating is a process whereby the inks are printed on the paper stock (normally clay coat) and laminated to clear, unprinted lamination material (gloss or matte).
Reverse Print Laminating is a process in which the inks are printed on what will become the underside of the lamination material and then laminated to an unprinted, uncoated paper stock. This is typically limited to solid ink coverage’s / logos, etc.
Lamination Types
Gloss Lamination
- Extremely high gloss lamination
- Can be applied to all standard substrates
Matte Lamination
- Satin finish lamination
- Can be applied to all standard substrates
Back to Technical Information Home