Category: Equipment & Techniques

The standard test is the four-corner paper test: place four identical dollar bills or paper strips at each corner of the platen, clamp the press shut, and attempt to pull each paper out. If any strip slides out easily, the platen pressure is uneven and requires mechanical adjustment of the central pressure spindle.

Acetone acts as a powerful polar organic solvent that rapidly dissolves the polyurethane and polyamide hot-melt adhesives holding HTV to fabric fibers. Because cotton and polyester polymers are chemically resistant to short acetone exposure, the vinyl peels cleanly away without textile damage.

Water hammer occurs when steam enters cold pipes containing accumulated liquid condensate. Rapid steam condensation creates localized vacuum voids that cause slugs of liquid water to accelerate at high velocity down the pipe, slamming violently into elbows and valves.

Clamshell presses close on a single rear hinge like a book, meaning the rear edge of the platen contacts the garment slightly before the front edge, requiring exact garment thickness alignment. Swing-away presses descend purely vertically parallel to the lower platen, applying completely uniform perpendicular pressure.