Compare TPU- and PU-described heat-transfer labels through verified layer roles, identical artwork, applied feel, edge, and blank-specific testing.
Buyer perspective
Two labels can carry different material acronyms but look similar in a photograph, or share a name while using different carriers and adhesive layers. Ask what TPU and PU refer to in each quotation. A useful comparison holds the logo and receiving garment constant and measures what remains after application.
What to decide
Sample note
Request the visible face material, any printed or molded layer, adhesive, carrier, and reverse statement. Mark which layers are temporary. Keep hybrid or blended constructions described as quoted instead of forcing them into a simplistic two-column material claim.
Sample note
Supply the same physical logo size, color target, relief goal, fabric, and placement. Examine lettering, outer edge, bend, and hand feel on actual applied samples. Review a garment after relevant handling and care rather than ranking unused sheets.
Sample note
Save the accepted label, supplier construction statement, artwork version, and application conditions. If a future order changes film, garment, or process, repeat the applicable test. Avoid unsupported claims that one acronym guarantees flexibility or durability.
Options
A PU-labeled sample looks thinner than a TPU-labeled one in a catalog. The two supplier offers also use different artwork and fabrics, so the photographs cannot establish a material advantage. Build a paired sample with equal design inputs.
For each quote, identify the visible mark, adhesive if present, temporary carrier, and backing or release sequence. Note any combined materials instead of guessing from one acronym.
Apply the same-size logo to the same blank color and placement with each supplier's current process. Inspect edge, bend, fine text, hand feel, and reverse effects.
Keep the chosen physical sample and full construction with the order. A later film or blank substitution requires renewed review rather than relying on the old material label.
Judge the finished, identified builds on the garment; don't rank acronyms as quality grades.
Send your artwork, quantity, destination, and specifications for a tailored quote.