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After every run, with deep cleaning layered on top based on ink chemistry and substrate load. The longer answer is that “how often” is the wrong first question. The better question is

A long-run flexo job rarely loses register all at once. It walks. The first 5,000 sheets look clean, the 20,000th is still within tolerance, and somewhere past 50,000 the operator notices that the bla

Your press is running, the plate is clean, and the ink is fresh — yet the print looks weak, patchy, or washed out. Ink not transferring properly is one of the most common

Dip a dyne pen into a freshly extruded PE film surface. The ink line shrinks into scattered beads within seconds. The film looks perfectly smooth. It feels dry. Yet nothing will stick to it

Solvent-based ink viscosity is the single most influential variable in flexographic printing. It directly governs how much ink transfers from the anilox roll to the plate, how evenly that ink lays down on the substrate,

In corrugated flexo printing, the plate mounting tape is far more than just a double‑sided adhesive. It is a critical interface that secures the photopolymer plate to the print cylinder, transmits impression

Setting the doctor blade angle correctly is one of the most critical adjustments a flexo press operator can make. The angle determines how effectively the blade shears excess ink from the anilox roll—

Dot gain (also called tone value increase, or TVI) is the phenomenon where halftone dots printed on the substrate are larger than their intended size on the printing plate. In flexography, dot gain is

Color variation from the beginning to the end of a single flexo roll is one of the most frequent sources of customer complaints. Unlike a sudden defect, this type of shift is rarely caused by a single

Cracked photopolymer plates are one of the most frustrating—and costly—problems on a flexo press. A single cracked plate doesn't just ruin print

Investing in new label‑making equipment forces every label converter to face one core question: should you add a flexo printing machine, go all‑in with digital printing, or consider both production pa

Register marks are the “eyes” of the automatic registration system in CI flexo printing. They tell the sensors where each color plate is, allowing the system to adjust register between color stations in real time.