Impressions - April 2018 - 40

Figure 2

Adjusting Artwork
There are multiple ways of creating an allowance for the underbase
so that it doesn't show.The key is to adjust the artwork as little as
possible to retain as much of the original design's look and edge
quality without risking any problems on press.The artwork's quality
and some specific variables dramatically can affect how underbase
modification works.
If the artwork has tiny lines and broken-up small pieces, then
contracting the underbase may diminish or eliminate it in many
areas.This may be an issue because the color may not show up.
In such cases, try slightly enlarging the colored areas or adjusting
the underbase and top colors halfway to avoid damaging the
final print.
In Photoshop, select the color channel for which you are adjusting the underbase and click on it. Select the active image area
instead of the inverse. (If you have the inverse selected, lines will
show on the border of the channel, as well as the image areas.)
Inside the underbase channel, you can edit a solid image's edges
by selecting the stroke command under the Edit menu and then
stroke the edges by two to four pixels using the center option.
This will trim the underbase just enough to allow the top color
to slightly move and not let the underbase show. This type of
edit is best for images with solid areas that need compensation
(see Figure 4).
An image with solid colors and lots of little pieces requires
making a decision regarding how much to adjust the file. In such
cases, create copies of the underbase channel and the color channel
being edited (drag the respective channels on the New Channel
button or use the Duplicate Channel command). The copied
channels can then be left visible (with the eye selected) and the
original channels can be turned off so that the edits will be the
only visible options.
Once these copies are ready, a stroke can be applied to some or
all of the color channels border, as well as to the underbase. Using
the stroke command should be reserved for files with mostly solid
borders. Any blurry edges or grayscale areas that are stroked will
create weird effects instead of proper editing that stays confined
to the colors' borders.
In the case of vector programs like CorelDRAW or Adobe
Illustrator, creating a separation with a slight underbase contraction
P.40

i m p r e s s i o n s m a g . c o m APRIL 2018

Figure 3

is a similar process. The underbase element shapes are outlined
with white to cut away slightly at the edges and allow the top
color separation to overlap just enough to cover.
Fading & Transparent Colors
The process of adjusting an underbase so that a shadowy fade on
a dark shirt looks correct should be done carefully. It often is best
to perform tests if you are new to halftone underbases - par-


http://www.impressionsmag.com

Impressions - April 2018

Table of Contents for the Digital Edition of Impressions - April 2018

Impressions - April 2018
Contents
First Impressions
From the Show Director
Overheard
First Look
Scene at ISS
On Design
Changing Tides
Breakdown: Heat Transfers on a Hoodie
The Brand Boost
Pushing the Pedal in Purchasing
Shop Talk
Embroidery Production
Screen Printing Graphics & Design
Sublimation
Direct-To-Garment
Classifieds
Ad Index/Online Directory
Impressions - April 2018 - Intro
Impressions - April 2018 - CT1
Impressions - April 2018 - CT2
Impressions - April 2018 - Impressions - April 2018
Impressions - April 2018 - Cover2
Impressions - April 2018 - 1
Impressions - April 2018 - Contents
Impressions - April 2018 - 3
Impressions - April 2018 - 4
Impressions - April 2018 - 5
Impressions - April 2018 - First Impressions
Impressions - April 2018 - 7
Impressions - April 2018 - From the Show Director
Impressions - April 2018 - 9
Impressions - April 2018 - Overheard
Impressions - April 2018 - 11
Impressions - April 2018 - 12
Impressions - April 2018 - 13
Impressions - April 2018 - 13A
Impressions - April 2018 - 13B
Impressions - April 2018 - First Look
Impressions - April 2018 - 15
Impressions - April 2018 - Scene at ISS
Impressions - April 2018 - 17
Impressions - April 2018 - 18
Impressions - April 2018 - On Design
Impressions - April 2018 - Changing Tides
Impressions - April 2018 - 21
Impressions - April 2018 - 22
Impressions - April 2018 - 23
Impressions - April 2018 - Breakdown: Heat Transfers on a Hoodie
Impressions - April 2018 - 25
Impressions - April 2018 - The Brand Boost
Impressions - April 2018 - 27
Impressions - April 2018 - 28
Impressions - April 2018 - 29
Impressions - April 2018 - Pushing the Pedal in Purchasing
Impressions - April 2018 - 31
Impressions - April 2018 - 32
Impressions - April 2018 - 33
Impressions - April 2018 - Shop Talk
Impressions - April 2018 - 35
Impressions - April 2018 - Embroidery Production
Impressions - April 2018 - 37
Impressions - April 2018 - 38
Impressions - April 2018 - Screen Printing Graphics & Design
Impressions - April 2018 - 40
Impressions - April 2018 - 41
Impressions - April 2018 - Sublimation
Impressions - April 2018 - 43
Impressions - April 2018 - 44
Impressions - April 2018 - Direct-To-Garment
Impressions - April 2018 - 46
Impressions - April 2018 - 47
Impressions - April 2018 - 48
Impressions - April 2018 - Ad Index/Online Directory
Impressions - April 2018 - 50
Impressions - April 2018 - Cover3
Impressions - April 2018 - Cover4
Impressions - April 2018 - IH1
Impressions - April 2018 - IH2
Impressions - April 2018 - IH3
Impressions - April 2018 - IH4
Impressions - April 2018 - IH5
Impressions - April 2018 - IH6
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https://www.nxtbook.com/nxtbooks/impressions/201905
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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
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https://www.nxtbook.com/nxtbooks/nielsen/impressions_teamspirit_2009fall
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