Solvent based inks in different colors and patterns are applied to paper, plastic, film and foil substrates. Finished products include all sorts of wrapping paper, wall covering, candy wrappers, flexible food packages, shrink labels, high quality magazines and many, many more.
These industries employ ovens or dryers to remove the solvents from the finished product.The design specification for safe operation of a solvent oven or dryer is outlined in safety and fire codes. The codes limit the maximum solvent concentration allowable to 25% of the LFL under worst case operation. However if a flammable vapor analyzer is installed as a safety control the maximum allowable concentration is 50% LFL.
Examples of solvent-based printing applications include:
- Pressure sensitive labels
- Shrink labels
- Heatset web offset printing
- Flexible packaging
- Wall coverings
- Gravure printing
- Flexographic printing
- Decorated paper
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