DTG Lint and Raised Fibers: Set the Preparation Sequence Before Printing

For DTG printing, lint removal and fiber flattening are separate tasks. Agree the garment-specific preparation sequence before production, keep cleaned garments protected, and avoid undoing a flattened surface with an unnecessary final pass of adhesive tape. If the print looks grainy, compare a controlled preparation trial with a nozzle check rather than assuming every rough edge comes from the artwork.

The correct sequence depends on the blank garment, pretreatment system, ink and curing process. A ready-to-print garment can require a different approach from a conventional blank receiving pretreatment in your shop. The purpose of this guide is to help operators define and check a preparation procedure, not to prescribe one temperature, pressing time or roller for every DTG application.

Why apparently similar instructions can differ

Epson's roller pretreatment instructions include removing lint before applying pretreatment and discuss flattening fibers. In a separate, garment-specific document, SanMar's DM130DTG decorating guidance advises using a lint roller before pressing rather than after pressing, because adhesive paper can raise fibers again. These examples concern their stated workflows; they are not interchangeable recipes for all blanks.

Epson's grainy-print troubleshooting page also places garment surface preparation alongside nozzle condition and alignment checks. The useful distinction is that surface preparation is one branch of diagnosis. A clean-looking shirt does not prove the printer is ready, and a normal nozzle check does not prove the fabric surface is ready.

Define the garment route first

Before opening a production carton, identify whether the garment is an ordinary untreated blank, a supplier-pretreated blank or a material requiring a special approved process. Record its style, color and batch. Obtain the instructions relevant to that combination, including restrictions on additional pretreatment. Do not add another liquid simply because the fabric feels different from the previous order.

Use a short preparation traveler with spaces for inspection, approved lint-removal method, pretreatment stage if applicable, fiber-flattening stage and release to the printer. The operator should be able to tell which steps have already happened. A stack that looks identical but contains both prepared and unprepared shirts invites accidental repeat treatment and makes later troubleshooting difficult.

Keep clean and dirty handling separate

Unpack garments away from the final loading surface where practical. Cardboard fragments, loose threads and fibers from other colors can travel with hands, tools and trays. Use a clean staging surface, and protect garments waiting for the printer. The goal is controlled handling, not an unsupported claim that a room or workstation is lint free.

Treat lint-removal supplies as process consumables. Identify the roller type being used and replace contaminated sheets according to the chosen procedure. Keep tools that have contacted pretreatment separate from dry inspection tools. When changing garment colors, check the working surface and equipment contact points rather than relying on the fact that the next shirt came from a new box.

Run a preparation comparison

Take a small, clearly identified sample set from the same garment batch. Use the approved artwork and existing printer preset. Compare the established preparation sequence with one proposed change, such as removing lint earlier in the process. Do not simultaneously change pretreatment amount, white ink density, pressing conditions and artwork resolution; the result would not tell you which action mattered.

Observe the surface before printing and inspect the finished image after the approved cure. Look at fine edges, large white areas and regions where fibers were visible before printing. Retain the trial garments and write down the actual sequence. Photographs should use similar lighting and distance. They help communicate appearance but do not replace handling checks or an agreed wash evaluation.

Separate four possible observations

• Debris visible before printing: review incoming garments, staging and the approved lint-removal method.

• Raised fibers after preparation: check the order of operations and whether a later action disturbed the surface.

• Grain or unclear detail with a normal-looking surface: investigate nozzle condition, alignment and the approved print setup.

• Marks appearing at contact points: inspect the platen and handling route under the machine's maintenance instructions.

These are investigation directions, not a definitive diagnosis from appearance alone. A defect can have more than one contributor. Stop a comparison if a garment cannot be loaded safely or the material route is not approved for the equipment. A rough surface is not a reason to improvise a printhead clearance or bypass a machine check.

Make the approved sequence teachable

Once a trial passes your quality criteria, document the sequence with a prepared sample and a short workstation instruction. Include the blank style, permitted tools and the point after which adhesive rolling should not be repeated without review. Name the person who can authorize a change. Training should explain the reason for the order, so operators do not substitute an apparently faster step during a busy shift.

A hypothetical shop might prepare two visually identical navy shirt batches using different sequences. If operators mix them at the printer, the trial loses its meaning. A labeled tray for each preparation route preserves the comparison. This example illustrates record control; it is not a customer case study or a promise of reduced rejects.

FAQ

Should every shirt be lint rolled immediately before loading?

No. Follow the approved garment route. Some instructions place adhesive lint removal before pretreatment or pressing. Repeating it later can disturb a surface that was already prepared, so a last-minute pass should not be an automatic habit.

Is this the same issue as uneven pretreatment?

Not necessarily. Review pretreatment consistency separately. A surface problem, a liquid application problem and a printer condition problem can look similar in a photograph while requiring different checks.

Can a new printer compensate for poor garment preparation?

Equipment selection does not eliminate the need for a validated blank and preparation process. Include the actual garments in sampling, and agree both appearance and durability checks before accepting customer production.

When comparing DTG garment printers, include preparation space, garment loading and operator instructions in the discussion. Contact PrintVision with your blank composition, typical artwork and intended ink workflow to plan a relevant sample evaluation.