2.1 Intro to Flexography

Question 1

flexo originally called

Answer 1

aniline printing

Question 2

what % of labels use flexo

Answer 2

90%

Question 3

finishing operations only consist of

Answer 3

rewinding

Question 4

a significant challenge in flexo prepress is

Answer 4

predicting and correcting distortion which occurs when mounting plate to cylinder

Question 5

Distoriton affects

Answer 5

dots (halftone) , shapes, line widths, typeforms

Question 6

distortion is most noticeable with

Answer 6

small diameter plate cylinders

Question 7

flexo inks are

Answer 7

low-viscocity
solvent/water/UV based
colorants = pigments or dyes

Question 8

what type of colourants is insoluble in flexo ink

Answer 8

pigments

Question 9

what type of colorant is soluble in ink

Answer 9

dyes

Question 10

ink must be selected with close consideration of substrate used…T or F?

Answer 10

TRUE

Question 11

flexo substrates include

Answer 11

paper, film, foil, board

Question 12

flexo was originally created for

Answer 12

packaging

Question 13

flexo products are generally________ or ______

Answer 13

rewound (roll-to-roll) & sheeted

Question 14

A _______ will form the printed product into its final form

Answer 14

converter

Question 15

Flexo plates must be _______ or ______

Answer 15

molded & photopolymer

Question 16

molded plates are made by

Answer 16

pouring liquid gun into a mold
plate is cured, hardened and removed from mold
TIME CONSUMING PROCESS

Question 17

photopolymer plates are

Answer 17

light sensitive
non-image ares are washed away
PREMEDIA LAB PROJECT

Question 18

an alt. to plates are _______ used for _________ (e.g. Wallpaper)

Answer 18

seamless design rolls & continuous repeat images

Question 19

diff types of plates are available based on……

Answer 19

durometer (hardness)
polymers
inks
applications

Question 20

durometer means….

Answer 20

hardness

Question 21

plates are mounted to plate cylinder using 2 sided tape aka

Answer 21

stickyback (cushioned or non-cushioned)

Question 22

plates mounted off press to cylindrical ______

Answer 22

sleves (slide onto plate cylinder)

REDUCE MAKE READY TIME

Question 23

repeat length is determined by the

Answer 23

PLATE CYLINDER

Question 24

flexo presses are available in four configurations

Answer 24

central impression (CI)
Stack
in-line (IL)
sheetfed corrugated

Question 25

flexo print unit (print station) consists of 4 main parts

Answer 25

fountain roller anilox roller plate cylinder impression cylinder

Question 26

flexo inking system is ______ compared to litho inking system

Answer 26

shorter

Question 27

there is no _______ in flexo inking across the plate

Answer 27

zonal control

Question 28

chambered doctor blade metering has no ____

Answer 28

ink fountain roller, the anilox roller turns in the ink | -uses doctor blade & containment blade

Question 29

the heart of the flexo inking system is also known as

Answer 29

the anilox roll

Question 30

anilox rolls control

Answer 30

inking to plate

Question 31

anilox rolls may be

Answer 31

``` chrome steel chrome ceramic mechanically engraved laser engraved ```

Question 32

largest product catergory for flexo is

Answer 32

corrugated board flexible packaging (growing fast) newspaper & book apps are emerging

Question 33

in 2014, flexo internation estimate is (%)

Answer 33

25%