Preventing Line Blur, Garment Lift, and Image Distortion

Why Your Art Needs More Room on the Screen

I’m often in shops where printers ask why they’re getting a blur line at the top of an image, a drag line at the bottom, or even garment lift at the end of the print stroke. These problems show up in shops of every size, and in most cases the cause isn’t mesh, ink, or squeegee technique—it’s art placement on the screen and a lack of clearance for the flood bar and squeegee.

Let’s break down why this happens and how to fix it.

When the Art Sits Too Close to the Top of the Screen Designers Often Create Artwork That is Either:

• Too large for the available print area, or

• Placed too close to the top edge of the screen

When this happens, the print stroke ends right at the top edge of the image—but the flood bar doesn’t. The flood bar ends its stroke hovering over the open stencil, and that’s where the problems begin.

Why This Creates Blur Lines

If the flood bar stops directly over the image area:

• It can leave a visible line where the flood stroke ended

• Halftones near the top of the design will pick up even the smallest inconsistencies

• With water-based inks, drips and drags from the bar can imprint directly into the artwork

• The stencil may not refill properly, causing light spots on the next print

Many printers make sure the squeegee clears the art—but forget that the flood bar must also clear the art completely. Both tools must travel past the image area to prevent visible defects.

The Bottom of the Design Needs Space Too

The same issue happens at the bottom of the screen. Printers will often shorten the stroke using adjustable print-stroke flags to reduce cleanup or avoid flooding outside the image area.

In theory, that sounds efficient.

In practice, it causes:

• Incomplete peel at the end of the stroke

• Mesh sticking to the garment

• Garment lift

• Washed-out halftones where the screen doesn’t release cleanly

• Distortion at the tail end of the image

Why You Need Run-Off Distance

The squeegee needs:

1. Room to get up to speed before entering the image, and

2. A few inches of run-off after the image so the screen can peel away cleanly

Without that run-off, the screen releases too slowly or unevenly, which leads to blurred edges and sticking.

How Much Space Do You Actually Need?

As a rule of thumb:

• Top of image: 1–2.5 inches minimum before the frame

• Bottom of image: 2-4 inches or more of run-off for proper peel

• Flood bar clearance: Enough space so the bar stops beyond all stencil openings

• Water-based printing: Add more space—your flood bar will drip

This extra buffer isn’t wasted space. It’s part of how the press is designed to operate.

The Takeaway: Give Your Art Room to Breathe

Print quality drops dramatically when artwork is pushed too close to the limits of the screen. To prevent line blur, drip marks, or garment lift:

• Don’t crowd your art at the top of the screen

• Ensure the flood bar clears the entire stencil

• Give the squeegee space to accelerate into the image

• Leave enough run-off for a smooth, complete peel

• Avoid setting stroke flags so tight that the screen never fully releases

Your prints will be sharper, cleaner, and more consistent the moment you respect the space your tools need to do their job.