PET Film for Heat Transfer Printing

PET Film for Heat Transfer Printing is a coated polyester carrier film made for industrial transfer printing, including DTF, screen printing, logo transfer, and heat-applied graphics. As a PET Film for Heat Transfer Printing manufacturer, PET Film Supply Company produces this film with controlled coating, steady release, low heat shrinkage, and smooth roll flatness. It helps printed graphics stay clean before pressing and peel away consistently after transfer onto textiles, labels, bags, shoes, and other decorated surfaces.

Product Overview

PET Film for Heat Transfer Printing is not a simple transparent plastic sheet. It is a coated heat transfer carrier made from PET base film with a functional surface layer for ink reception, release control, and thermal stability. In production, the film must pass through printing, powder shaking, drying, stacking, and heat pressing without curling, sticking, or shifting the printed image.

PET Film Supply Company manufactures this coated PET transfer film for production lines where small defects can show clearly on the final graphic. Weak coating, poor release balance, or uneven winding tension may cause white ink cracking, powder sticking, ghosting, pinholes, curled edges, image shift, or incomplete transfer. During sample checks, the film is pressed at around 160°C to observe edge lift, curling, registration movement, and release residue. Rolls are also inspected under strong light for coating marks, fish eyes, wave edges, loose sides, core marks, and surface particles.

When selecting a DTF PET film roll, screen printing transfer film, or thermal transfer PET film, thickness is only one part of the decision. Coating side, release force, antistatic treatment, surface cleanliness, heat shrinkage, and ink system all affect transfer quality. For fine logo lines, small text, heavy white ink, and QR-code-style details, coating uniformity and peel consistency are especially important.

Benefits

• Cleaner ink laydown: The coated surface helps ink stay even, reducing spreading on small letters, fine logo lines, detailed graphics, and white ink areas.
• More stable peeling: Hot peel, cold peel, and warm peel options support different production speeds, fabric surfaces, adhesive systems, and transfer effects.
• Lower heat movement: The PET base helps reduce image shift, edge lift, and registration movement during 150–170°C heat press conditions.
• Smoother roll handling: Controlled winding tension helps reduce wave edges, loose sides, core marks, blocking, and feeding issues.
• Optional antistatic back side: Antistatic treatment can reduce powder attraction, dust pickup, sheet sticking, and unstable feeding.
• Practical compatibility: Suitable grades can work with water-based pigment ink, white ink, hot melt powder, PU ink, plastisol ink, and selected screen printing systems after testing.

How to Select the Right Peel Type for Heat Transfer PET Film？

The peel type should match the printing method, fabric surface, adhesive layer, operator habit, and final hand feel. Hot peel PET film is useful when faster output is needed because the carrier can be removed shortly after pressing. However, the release must still be clean enough to avoid edge lifting, broken fine lines, or ink residue. Cold peel transfer film gives the ink and adhesive layer more time to settle, which helps with fine details, textured fabrics, heavier graphics, and stronger edge control. Before mass production, test press temperature, peel timing, edge sharpness, release force, powder cleanup, transfer completeness, and carrier residue.

TDS

What Affects Print Quality on Heat Transfer PET Film?

Print quality depends on more than film thickness. The surface layer, release behavior, antistatic control, flatness, drying stability, and heat shrinkage all affect the final result. Uneven coating may cause weak white coverage, ink bleeding, pinholes, powder buildup, ghosting, edge bonding, or incomplete transfer. Too much heat shrinkage may move the printed image before pressing, especially on fine-line logos, small text, or repeated-position artwork. For QR-code-style details and heavy white ink layers, check printed edge clarity, powder cleanup, peel residue, release cleanliness, and transfer completeness after several press cycles.

Applications

• DTF PET film roll for garment graphics and full-color textile decoration
• Screen printing transfer film for logos, labels, numbers, and graphic panels
• Transfer carrier film for sportswear, workwear, caps, bags, and promotional textiles
• Coated PET transfer film for shoe uppers, patches, fabric labels, and decorative marks
• Hot peel film for repeated production lines where shorter waiting time is needed
• Cold peel transfer film for fine graphics, small text, textured fabrics, and stronger edge control
• Industrial textile marking, silicone label transfer, heat-applied graphics, and decorative transfer sheets

Production Line

Loading Details

FAQ

Q1: Is this film the same as normal PET film?

No. This is a coated heat transfer carrier film. Normal PET film usually does not have the correct release, ink reception, coating stability, or heat transfer performance for printing and pressing.

Q2: Which thickness is commonly used?

75μm and 100μm are common for many DTF and thermal transfer jobs. 125μm can be selected when stronger handling, better sheet stability, or lower curl risk is needed.

Q3: Should I choose hot peel or cold peel?

Hot peel is better for faster production, but it still needs clean release and stable edges. Cold peel is often better for detailed artwork, textured fabric, heavier graphics, or jobs that need more controlled release.

Q4: What should be tested before bulk use?

Check coating side, ink compatibility, powder release, press temperature, peel timing, shrinkage, curling, edge clarity, release residue, transfer completeness, and roll flatness before mass production.