SUPPORT - MANUALS & DOWNLOADS
Control Strips

Minimal Control Strips

Assessing an offset press used to require a dedicate press run which is very expensive, and is often not indicative of actual day to day production. For these reasons, we have developed multiple procedures to assess an offset press during live production. We have designed small control strips that can be placed in-between regular jobs. Reduced amount of patches and small size gives an opportunity to locate it in the gaps. 

 

 

When using a handheld instrument with scan option like X-Rite eXact Scan or Techkon SpectroDens or using other instruments with small aperture it is possible to reduce strip width to 3-4 mm  (1,5 / 2mm instrument aperture required). The relationship between aperture/ screen frequency/ control strip length for X-Rite eXact is described here. If you are using different instrument contact vendor for detailed information.

 

ChromaChecker™ offers two different control strips:

  1. Minimal G7®  — dedicated to G7 production in two versions: single-row and triple-row.
  2. Minimal CMYK 40-80 — for production calibrated with TVI (dot gain) method


We strongly recommend placing the minimal control strips everywhere possible. It doesn't mean that all printed strips have to be measured — but doing so will provide the ability to resolve potential issues in the future. It is also useful for calculating variation from production work. We advise filling all gaps with minimal control strips so that it becomes a habit. It doesn't cost anything, but brings control points to your workflow. This is helpful to understand color differences between live work area, and color bar; often due to poor inking uniformity, pressure varisions due to bad blankets, paper movement and other issues. To check this variation, scan few strips from a different location, make a group and analyze variations. If solids are very different - fix ink distribution, if solids are stable but tints have big variation - you have probably a slurring/doubling issue. 

 

 

Minimal G7®

This control strip contains 21 patches for G7 conformance plus very basic TVI and overprints analysis.


1.5 mm aperture —  minimal size is 3 x 63 mm/ 0,12" x 2,48" (175 lines/inch or above);
2.0 mm aperture — minimal size is 4 x 84 mm/ 0,16" x 3,3" (133 lines/inch or above)


for i1Pro 2 — minimal size is 7 x 147 mm / 0,28" x 5,8"

 

 


TIFF / PDF files downloads:

single low

3-rows

 

We recommend that you use as large of a patch size as possible for given applicationt – may vary from job to job. Scale provided tiff file according to your needs.

 

 Software Templates

Alwan Print Verifier Template  / Minimal G7®.jobTemplate 

basICColor Catch 5 Templates

i1 Profiler / Measure Reference Chart


Minimal CMYK 40-80

This control strip consists of 19 patches for basic TVI, gray-balance and overprint analysis.


1.5 mm aperture — minimal size is 3 x 57mm (175 lines/inch or above);
2.0 mm aperture — minimal size is 4 x 76 mm (133 lines/inch or above)


for i1Pro 2 — minimal size is 7 x 133 mm

We recommend that you use as large of a patch size as possible for given application – msy vary from job to job. Scale provided tiff file according to your needs.

TIFF files downloads:

 

 

Software Templates

Alwan Print Verifier Templates / Minimal CMYK 40-80.jobTemplate

basICColor Catch 5 Templates

i1 Profiler / Measure Reference Chart

 

 

Notes

ChromaChecker subscription provides control strips and templates for virtually any software and instrument combination but the user can modify control strips according to particular requirements. The control strips definitions are available in Control Strip Tool. The user may have to import selected control strip from the public library first.

Control Strip Tool will enable user to define custom control strip - The user can import one of our Minimal Control Strips and add spot color patches if necessary.

If you want to perform G7® calibration we recommend placing at least one PI-64 on the printing sheet - ChromaChecker G7® Curve Inspector is more accurate with more G7 gray-finder patches to generate proper G7 curves.

 

For X-Rite eXact users we advise enlarging the first patch - as scanning process starts on this patch it is easier when the patch width is 30-50% wider (accommodates easier positioning on patch, and more accuracy).

Some instruments (like i1Pro) require to start on substrate/white and end on substrate/white - make sure that proper positioning of target with unprinted area on both ends of target will allow this to happen.


Whenever measuring control strips be aware of backing behind substate– be sure to use proper color white backing material behind samples (single-side printing).