CPE Package Printing, Labeling & Identification 2

Question 1

What is 'registration' in the context of multi-color package printing?

Accepted Answer

Precise alignment of multiple color layers relative to each other

Answer

Registration refers to the precise alignment of different color separations so each color prints exactly in its intended position relative to all other colors on the package.

Question 2

Which label adhesive type is specifically formulated to allow clean removal without leaving residue on the surface?

Accepted Answer

Removable adhesive

Answer

Removable adhesives are formulated with lower peel strength to allow labels to be cleanly removed without leaving adhesive residue, ideal for temporary or promotional labeling.

Question 3

In the GS1 system, what does a GTIN (Global Trade Item Number) uniquely identify?

Accepted Answer

A trade item at any level of packaging

Answer

A GTIN uniquely identifies a trade item at any packaging level—consumer unit, inner pack, case, or pallet—and is encoded in retail barcodes such as UPC-A and EAN-13.

Question 4

What printing technique reproduces continuous-tone images by converting them into patterns of varying-sized or spaced dots?

Accepted Answer

Halftone printing

Answer

Halftone printing reproduces continuous-tone images by converting them into patterns of dots of varying size (amplitude modulation) or frequency (FM screening) to simulate tonal gradations.

Question 5

What is the purpose of 'trapping' in package printing prepress?

Accepted Answer

Slightly overlap adjacent colors to prevent visible gaps from misregistration

Answer

Trapping involves slightly overlapping adjacent color areas so that minor press misregistration does not result in visible white gaps between color elements on the finished package.

(CPE) Certified Packaging Engineer Practice Test

(CPE) Certified Packaging Engineer Practice Test

CPE Package Printing, Labeling & Identification 2