Printing & Decoration Technologies Flashcards
7 cards from real CPT practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Printing & Decoration Technologies flashcards as text
In-mold labeling (IML) places the label into the mold before plastic is injected or blown, resulting in:
Answer: A label permanently integrated into the container wall
IML fuses the label with the container during molding, creating a single-material structure with no visible label edge.
Thermal transfer printing used for flexible packaging codes and date codes works by:
Answer: Melting an ink ribbon with a heated printhead onto the substrate
Thermal transfer printers use a heated printhead to melt wax- or resin-based ink off a ribbon, fusing it to the substrate surface.
When selecting printing inks for direct food contact applications in the US, the primary regulatory reference is:
Answer: FDA 21 CFR regulations and indirect food additive standards
FDA 21 CFR governs substances that may contact food in the US, including inks and coatings on the food-contact side of packaging.
Shrink sleeve labels provide 360-degree decoration and are applied to containers by:
Answer: Heat causing the sleeve film to conform to the container shape
Shrink sleeve films (typically PVC, PETG, or OPS) are oriented during manufacture to shrink and conform tightly to the container when heated.
The primary advantage of water-based inks over solvent-based inks in flexible packaging printing is:
Answer: Reduced VOC emissions and improved worker and environmental safety
Water-based inks emit far fewer volatile organic compounds (VOCs) than solvent inks, reducing air pollution and occupational health risks.
A printing defect called 'mottle' appears as uneven, blotchy ink density in solid areas. Its most common cause is:
Answer: Non-uniform ink absorption due to substrate surface variation
Mottle results from uneven ink absorption caused by inconsistent surface porosity, coating weight variation, or formation issues in the substrate.
Tactile varnishes and soft-touch coatings applied to packaging achieve their effect by:
Answer: Depositing a micro-textured or elastomeric polymer layer on the print surface
Soft-touch and tactile coatings contain fine particles or elastomeric polymers that create a micro-texture or rubber-like feel when cured.