Technical service
Troubleshooting guides
280 faults across fourteen product families, written for the press floor.
How to use them
Written to be used at the press, not filed
Fourteen guides, one for each product family. Each one opens as a slideshow in your browser: arrow keys or the on-screen buttons on a desktop, a swipe on a phone, and a full-screen button for the press room. Nothing to download and nothing to install.
Every guide gives the process and the variables to hold, then works through the faults that actually stop jobs. For each fault: what you see, a picture of the defect beside a correct print, the causes ordered by how often they are really the cause, what to check and in what order, what to change, how to confirm it is fixed, and the trap, which is the move operators reach for first and should not.
Every figure carries the method that produced it. The values that govern a supply are those on the Technical Data Sheet for the grade you buy.
The guides
Open any one as a slideshow.
Screen Printing Inks
Mesh, stencil and squeegee. 20 faults from dry-in to crazing.
Pad Printing Inks
Cliche, cup and pad. 20 faults from poor pick-up to substrate crazing.
UV Flexo Inks
Anilox, plate and cure. 20 faults from tacky surface to set-off in the reel.
UV Offset Inks
Ink and water, tack ladder and cure at depth. 20 faults.
UV Letterpress Inks
Lamitube and narrow web. 20 faults from halo to cap torque.
UV Curable Coatings
Gloss, matt and slip, and the coater itself. 20 faults.
UV Curable Adhesives
Bond development, cure through substrate, shrinkage stress. 20 faults.
Water Based Flexo Inks
pH before viscosity, and drying capacity before speed. 20 faults.
Water Based Gravure Inks
Cylinder, blade and tunnel. 20 faults from screening to water resistance.
Solvent Based Flexo Inks
PE and woven bags, cement bags and OPVs. 20 faults.
Solvent Based Gravure Inks
Lamination bonds and residual solvent. 20 faults.
Functional Coatings
Heat-seal lacquers, barrier and primers. 20 faults.
Specialty and Effect Inks
Metallics, effects and colour change. 20 faults.
Industrial Coatings
Glass, metal, plastic, board, concrete and wood. 20 faults.
Contents
What is in every guide
- The process, step by step, with the one variable held at each step.
- Control variables with their target, the instrument and standard that measures them, and how they drift through a run.
- The mechanism that is most often misunderstood in that family, as a diagram.
- Twenty faults, each with a picture of the defect, ranked causes, ordered checks, ordered changes, a confirmation test and the trap to avoid.
- A quick-reference page: symptom, the first thing to check, the first thing to change.
- The test methods behind every number in the guide.
- What to send us when the press-floor fixes have not worked.
Cannot find the fault you have?
Send us the symptom, the substrate, the press and the ink batch, and we will work it through with you.
Science Technology Innovation & Application. Printing inks and coatings for packaging, label and graphic printing since 2006.
Contact Us
E105, GNEPIP, Industrial Area Site-5,
Greater Noida, Uttar Pradesh 201306, India
+91-8750051884
sales@ufindustries.com
https://ufindustries.com