Impressions - May 2020 - 39

Figure 2

and printed on a selection of meshes. Once these files are done, you
can use them to check for a variety of possible areas to improve your
results (see Figure 1).
A good test file will include a selection of elements and text that
will start large and shrink in size to expose any screen-making issues.
You also should include your most common halftone sizes so you
can see how well they print in your final test.
Explain to your screen and production departments that the test
should be completed using your shop's standard processes. If your
production process is unique for test images, then results will not be
consistent with what is normal for your other work.
Once screens are made and printed, invite your local screen or
emulsion suppliers to help you troubleshoot the results. You may even
want to bring in a consultant to help you with your screen-making and
process setup. There are a lot of variables and rapidly diagnosing the
issue can save hours - even weeks - of time getting you up to speed.

Controlling Variables

If your screens look decent under 10-15X magnification, print the
image and review it. Remember, keep the same standards used in
regular production to ensure a result with accurate data.
The following are possible variables to evaluate in your test prints:
1.	 Watch for halftone frequency issues. Adjusting mesh count,
halftone count or checking screen tension can help clear up
these issues. First, eliminate anything that can't be an issue,
then slowly move to the next one. Ensure all screen tensions
are optimized for your meshes. Then, ensure the angle and
dot frequencies are ideal for the mesh being tested. Don't attempt to go to a higher-dpi dot until you can manage a clean
lower-dpi one.
2.	 Watch for excessive dot gain and tonal compression. This is
where your 60%-90% dots mash together and look solid. The
best print should demonstrate a solid 100% area and a clean
differentiation between other halftone percentages. If you can't
see a difference between dot values, slow down and check print

Screen Variables
1.	 Look at screens when they are exposed,
washed out and dry. Review them under
magnification and look at your stencil
edges, thickness (EOM) and the smoothness of the emulsion's surface (RZ).
2.	 If the stencil edges in the image area
are ragged (see Figure 2), you may need
to adjust exposure time or check the
positive films' darkness. If the films
aren't dark enough, you may need to use
higher pressure when washing out the
screens.
3.	 If the emulsion's surface appears not
to extend much beyond the mesh surface
on the print side, then you may need to
adjust your coating technique to build
up slightly more emulsion.
4.	 If the emulsion surface in solid areas
is too bumpy, it can cause more ink
bleeding around the edges of smaller
dot shapes, causing excess dot gain.
To correct, adjust the screen-coating
technique or change emulsion.
5.	 Ensure enough open stencil area vs.
mesh threads. If screen tension is
poor - less than 15N - the open area
may actually be smaller than the thread
size. Printers often compensate for this
by increasing stroke pressure during
printing so that ink doesn't stick to
the screen.

MAY 2020

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Impressions - May 2020

Table of Contents for the Digital Edition of Impressions - May 2020

Impressions - May 2020
First Impressions
From the Show Director
Expo Scene
Overheard
First Look
The Intersection of Innovation
Ahead of the Curve
Managing Today's Workplace
Pushing the Creative Comfort Zone
Shop Talk
Screen Printing Graphics & Design
Direct-To-Garment
Ad Index/Classifieds
On Design
Impressions - May 2020 - Intro
Impressions - May 2020 - Impressions - May 2020
Impressions - May 2020 - Cover2
Impressions - May 2020 - 1
Impressions - May 2020 - 2
Impressions - May 2020 - 3
Impressions - May 2020 - 4
Impressions - May 2020 - First Impressions
Impressions - May 2020 - From the Show Director
Impressions - May 2020 - Expo Scene
Impressions - May 2020 - Overheard
Impressions - May 2020 - 9
Impressions - May 2020 - 10
Impressions - May 2020 - 11
Impressions - May 2020 - 11A
Impressions - May 2020 - 11B
Impressions - May 2020 - First Look
Impressions - May 2020 - 13
Impressions - May 2020 - The Intersection of Innovation
Impressions - May 2020 - 15
Impressions - May 2020 - 16
Impressions - May 2020 - 17
Impressions - May 2020 - 18
Impressions - May 2020 - 19
Impressions - May 2020 - 20
Impressions - May 2020 - 21
Impressions - May 2020 - 22
Impressions - May 2020 - 23
Impressions - May 2020 - 24
Impressions - May 2020 - 25
Impressions - May 2020 - Ahead of the Curve
Impressions - May 2020 - 27
Impressions - May 2020 - 28
Impressions - May 2020 - 29
Impressions - May 2020 - 30
Impressions - May 2020 - 31
Impressions - May 2020 - 32
Impressions - May 2020 - Managing Today's Workplace
Impressions - May 2020 - 34
Impressions - May 2020 - 35
Impressions - May 2020 - 36
Impressions - May 2020 - 37
Impressions - May 2020 - Pushing the Creative Comfort Zone
Impressions - May 2020 - 39
Impressions - May 2020 - 40
Impressions - May 2020 - 41
Impressions - May 2020 - Shop Talk
Impressions - May 2020 - 43
Impressions - May 2020 - Screen Printing Graphics & Design
Impressions - May 2020 - 45
Impressions - May 2020 - 46
Impressions - May 2020 - 47
Impressions - May 2020 - Direct-To-Garment
Impressions - May 2020 - 49
Impressions - May 2020 - 50
Impressions - May 2020 - Ad Index/Classifieds
Impressions - May 2020 - On Design
Impressions - May 2020 - Cover3
Impressions - May 2020 - Cover4
Impressions - May 2020 - ISS1
Impressions - May 2020 - ISS2
Impressions - May 2020 - ISS3
Impressions - May 2020 - ISS4
Impressions - May 2020 - ISS5
Impressions - May 2020 - ISS6
https://www.nxtbook.com/emerald/impressions/20211011
https://www.nxtbook.com/emerald/impressions/DigitalDecorator_2021
https://www.nxtbook.com/emerald/impressions/20210809
https://www.nxtbook.com/emerald/impressions/teamactivewear_2021
https://www.nxtbook.com/emerald/impressions/202106
https://www.nxtbook.com/emerald/impressions/202105
https://www.nxtbook.com/emerald/impressions/imp_0421_digital
https://www.nxtbook.com/nxtbooks/impressions/202103
https://www.nxtbook.com/nxtbooks/impressions/20210102
https://www.nxtbook.com/nxtbooks/impressions/202012
https://www.nxtbook.com/nxtbooks/impressions/dd_fall2020
https://www.nxtbook.com/nxtbooks/nxtbook_bhtest/impwessons
https://www.nxtbook.com/nxtbooks/impressions/20201011
https://www.nxtbook.com/nxtbooks/impressions/202009
https://www.nxtbook.com/nxtbooks/impressions/teamactive_2020fall
https://www.nxtbook.com/nxtbooks/impressions/202008
https://www.nxtbook.com/nxtbooks/impressions/20200607
https://www.nxtbook.com/nxtbooks/impressions/202005
https://www.nxtbook.com/nxtbooks/impressions/dd_2020
https://www.nxtbook.com/nxtbooks/impressions/202004
https://www.nxtbook.com/nxtbooks/impressions/202003
https://www.nxtbook.com/nxtbooks/impressions/202002
https://www.nxtbook.com/nxtbooks/impressions/202001
https://www.nxtbook.com/nxtbooks/impressions/201912
https://www.nxtbook.com/nxtbooks/impressions/dd_2019
https://www.nxtbook.com/nxtbooks/impressions/201910
https://www.nxtbook.com/nxtbooks/impressions/201909
https://www.nxtbook.com/nxtbooks/impressions/teamactive_2019fall
https://www.nxtbook.com/nxtbooks/impressions/201908
https://www.nxtbook.com/nxtbooks/impressions/20190607
https://www.nxtbook.com/nxtbooks/impressions/201905
https://www.nxtbook.com/nxtbooks/impressions/201904
https://www.nxtbook.com/nxtbooks/impressions/201903
https://www.nxtbook.com/nxtbooks/impressions/teamactive_2019spring
https://www.nxtbook.com/nxtbooks/impressions/201902
https://www.nxtbook.com/nxtbooks/impressions/201901
https://www.nxtbook.com/nxtbooks/impressions/201812
https://www.nxtbook.com/nxtbooks/impressions/dd_2018
https://www.nxtbook.com/nxtbooks/impressions/201810
https://www.nxtbook.com/nxtbooks/impressions/201809
https://www.nxtbook.com/nxtbooks/impressions/teamspirit_2018fall
https://www.nxtbook.com/nxtbooks/impressions/201808
https://www.nxtbook.com/nxtbooks/impressions/201806
https://www.nxtbook.com/nxtbooks/impressions/201805
https://www.nxtbook.com/nxtbooks/impressions/201804
https://www.nxtbook.com/nxtbooks/impressions/201803
https://www.nxtbook.com/nxtbooks/impressions/teamspirit_2018spring
https://www.nxtbook.com/nxtbooks/impressions/201802
https://www.nxtbook.com/nxtbooks/impressions/201801
https://www.nxtbook.com/nxtbooks/impressions/201712
https://www.nxtbook.com/nxtbooks/impressions/201710
https://www.nxtbook.com/nxtbooks/impressions/201709
https://www.nxtbook.com/nxtbooks/impressions/201708
https://www.nxtbook.com/nxtbooks/impressions/teamspirit_2017fall
https://www.nxtbook.com/nxtbooks/impressions/20170607
https://www.nxtbook.com/nxtbooks/impressions/201705
https://www.nxtbook.com/nxtbooks/impressions/201704
https://www.nxtbook.com/nxtbooks/impressions/201703
https://www.nxtbook.com/nxtbooks/impressions/teamspirit_2017spring
https://www.nxtbook.com/nxtbooks/impressions/201702
https://www.nxtbook.com/nxtbooks/impressions/201701
https://www.nxtbook.com/nxtbooks/impressions/sportsfanretailer
https://www.nxtbook.com/nxtbooks/impressions/201612
https://www.nxtbook.com/nxtbooks/impressions/201610
https://www.nxtbook.com/nxtbooks/impressions/201609
https://www.nxtbook.com/nxtbooks/impressions/201608
https://www.nxtbook.com/nxtbooks/impressions/teamspirit_2016fall
https://www.nxtbook.com/nxtbooks/impressions/20160607
https://www.nxtbook.com/nxtbooks/impressions/201605
https://www.nxtbook.com/nxtbooks/impressions/201604
https://www.nxtbook.com/nxtbooks/impressions/201603
https://www.nxtbook.com/nxtbooks/impressions/teamspirit_2016spring
https://www.nxtbook.com/nxtbooks/impressions/201602
https://www.nxtbook.com/nxtbooks/impressions/201601
https://www.nxtbook.com/nxtbooks/impressions/sportsfanretailer_201512
https://www.nxtbook.com/nxtbooks/impressions/201512
https://www.nxtbook.com/nxtbooks/impressions/digitaldecorator_2015fall
https://www.nxtbook.com/nxtbooks/impressions/201510
https://www.nxtbook.com/nxtbooks/impressions/201509
https://www.nxtbook.com/nxtbooks/impressions/201508
https://www.nxtbook.com/nxtbooks/impressions/teamspirit_2015fall
https://www.nxtbook.com/nxtbooks/impressions/20150607
https://www.nxtbook.com/nxtbooks/impressions/digitaldecorator_2015summer
https://www.nxtbook.com/nxtbooks/impressions/sportsfanretailer_201506
https://www.nxtbook.com/nxtbooks/impressions/201504
https://www.nxtbook.com/nxtbooks/impressions/201503
https://www.nxtbook.com/nxtbooks/impressions/teamspirit_2015spring
https://www.nxtbook.com/nxtbooks/impressions/201502
https://www.nxtbook.com/nxtbooks/impressions/201501
https://www.nxtbook.com/nxtbooks/impressions/sportsfanretailer_201412
https://www.nxtbook.com/nxtbooks/impressions/201412
https://www.nxtbook.com/nxtbooks/impressions/201410
https://www.nxtbook.com/nxtbooks/impressions/sportsfanretailer_2014fall
https://www.nxtbook.com/nxtbooks/impressions/201409
https://www.nxtbook.com/nxtbooks/impressions/201408
https://www.nxtbook.com/nxtbooks/impressions/teamspirit_2014fall
https://www.nxtbook.com/nxtbooks/impressions/digitaldecorator_2014summer
https://www.nxtbook.com/nxtbooks/impressions/20140607
https://www.nxtbook.com/nxtbooks/impressions/sportsfanretailer_2014spring
https://www.nxtbook.com/nxtbooks/impressions/201404
https://www.nxtbook.com/nxtbooks/impressions/201403
https://www.nxtbook.com/nxtbooks/impressions/teamspirit_2014spring
https://www.nxtbook.com/nxtbooks/impressions/201402
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201401
https://www.nxtbook.com/nxtbooks/nielsen/impressions_sportsfanretailer_201312
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201312
https://www.nxtbook.com/nxtbooks/nielsen/impressions_20131011
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201309
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201308
https://www.nxtbook.com/nxtbooks/nielsen/impressions_teamspirit_2013fall
https://www.nxtbook.com/nxtbooks/nielsen/impressions_20130607
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201304
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201303
https://www.nxtbook.com/nxtbooks/nielsen/impressions_teamspirit_2013spring
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201302
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201301
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201212
https://www.nxtbook.com/nxtbooks/nielsen/impressions_20121011
https://www.nxtbook.com/nxtbooks/nielsen/impressions_teamspirit_2012fall
https://www.nxtbook.com/nxtbooks/nielsen/impressions_20120809
https://www.nxtbook.com/nxtbooks/nielsen/impressions_20120607
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201204
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201203
https://www.nxtbook.com/nxtbooks/nielsen/impressions_teamspirit_2012spring
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201202
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201201
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201112
https://www.nxtbook.com/nxtbooks/nielsen/impressions_20111011
https://www.nxtbook.com/nxtbooks/nielsen/impressions_20110809
https://www.nxtbook.com/nxtbooks/nielsen/impressions_teamspirit_2011fall
https://www.nxtbook.com/nxtbooks/nielsen/impressions_20110607
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201104
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201103
https://www.nxtbook.com/nxtbooks/nielsen/impressions_teamspirit_2011spring
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201102
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201101
https://www.nxtbook.com/nxtbooks/nielsen/impressions_sourcebook2010
https://www.nxtbook.com/nxtbooks/nielsen/impressions_20101112
https://www.nxtbook.com/nxtbooks/nielsen/impressions_20100910
https://www.nxtbook.com/nxtbooks/nielsen/impressions_teamspirit_2010fall
https://www.nxtbook.com/nxtbooks/nielsen/impressions_20100708
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201004
https://www.nxtbook.com/nxtbooks/nielsen/impressions_teamspirit_2010winter
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201003
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201002
https://www.nxtbook.com/nxtbooks/nielsen/impressions_200909
https://www.nxtbook.com/nxtbooks/nielsen/impressions_eco_2009fall
https://www.nxtbook.com/nxtbooks/nielsen/impressions_teamspirit_2009fall
https://www.nxtbook.com/nxtbooks/nielsen/impressions_200910
https://www.nxtbook.com/nxtbooks/nielsen/impressions_20091112
https://www.nxtbook.com/nxtbooks/nielsen/impressions_sourcebook_200906
https://www.nxtbook.com/nxtbooks/nielsen/impressions_201001
https://www.nxtbookmedia.com