| Film Material | Base polymer used for the transfer film | PET film is the standard material for DTF transfer rolls | Uniform PET substrate with consistent coating | PET provides dimensional stability during printing, powdering and heat pressing. | Technical data sheet, substrate specification and coating description |
| Film Thickness | Total film thickness | Approximately 75–100 microns | Stable thickness within the stated tolerance across the entire roll | Thickness affects handling, release behavior, heat transfer and finished-hand feel. | Micrometer test report from several points across the roll |
| Available Widths | Compatibility with printer and cutting workflow | Common widths include 30 cm, 33 cm, 38 cm, 43 cm, 60 cm and 63.5 cm | Width matched to the actual printhead and media path | Correct width reduces edge waste, skewing and printer-feed problems. | Finished width tolerance and roll-width inspection records |
| Roll Length | Usable length per roll | Often 50–100 m for smaller rolls and 100–200 m for production rolls | Declared length with minimal unusable leader and tail material | Accurate length improves production planning and cost-per-print calculations. | Net-length measurement method and packaging specification |
| Surface Finish | Matte, semi-matte or glossy surface | Matte and semi-matte finishes are widely used for DTF printing | Uniform matte surface without coating streaks or shiny patches | A consistent surface helps control ink absorption, powder adhesion and final appearance. | Surface-finish sample and inspection images under controlled lighting |
| Peel Type | Hot peel, warm peel or cold peel behavior | All three types are available; the required type depends on the adhesive and workflow | Release behavior that matches the recommended pressing process | Incorrect peel timing can cause lifting, edge distortion or reduced wash durability. | Recommended peel temperature, dwell time and customer test results |
| Printing Temperature | Temperature tolerance during printing and curing | Usually compatible with standard DTF curing processes around 120–160°C | No visible deformation, shrinkage or coating damage within the specified range | Thermal stability supports repeatable curing and reduces registration problems. | Temperature range, shrinkage test and curing-process instructions |
| Powder Adhesion | Ability of the adhesive powder to remain on printed areas | Should provide clean adhesion on wet ink without excessive powder sticking to clear areas | Sharp powder boundaries and minimal background contamination | Good powder control improves image clarity and reduces waste or garment staining. | Printed test sheet, powdering video and recommended powder particle size |
| Ink Compatibility | Performance with commonly used DTF pigment inks | Compatibility varies according to ink formulation, print settings and humidity | Stable results with the buyer’s actual ink and printer settings | Film performance cannot be judged reliably without testing the complete ink-film-powder system. | Compatibility list plus a sample printed with the buyer’s ink |
| Transfer Clarity | Sharpness of fine text, gradients and small graphic details | High-quality film should preserve fine lines without excessive bleeding | Clean edges, smooth gradients and no pinholes in solid-color areas | Clarity directly affects the perceived quality of finished apparel. | Standardized fine-line, gradient and solid-fill transfer samples |
| Dimensional Stability | Change in length or width during printing and curing | Low shrinkage is expected; exact limits depend on film construction | Consistent registration from the beginning to the end of the roll | Low dimensional change is important for continuous printing and multi-color detail. | Before-and-after measurement data from a heated production test |
| Release Performance | Ease and cleanliness of film removal after pressing | Release should be smooth without pulling ink or adhesive from the garment | No lifting, cracking or visible film residue after the recommended peel | Poor release performance increases rejects and slows production. | Wash-test images, peel instructions and sample transfer evaluation |
| Wash Durability | Resistance to cracking, peeling and color loss after washing | Performance depends on ink, powder, curing, pressing and garment fabric | Passes a documented wash test under the agreed test method | Wash durability is a system result, so supplier claims should be verified with actual production materials. | Test method, wash temperature, cycle count and photographic results |
| Roll Winding | Core alignment, edge neatness and winding tension | Rolls should be tight and even without telescoping or crushed edges | Straight edges, firm winding and consistent tension throughout the roll | Good winding reduces media jams, wrinkles and feeding errors. | Close-up photos of roll edges and inspection criteria for winding defects |
| Defect Control | Frequency of coating marks, pinholes, wrinkles and contamination | Defect limits should be agreed before production | Documented inspection standard with traceable batch records | Clear acceptance criteria prevent disputes and make supplier quality comparable. | Quality-control plan, defect classification and batch inspection report |
| Storage Conditions | Protection from humidity, heat, dust and direct sunlight | Clean, dry and temperature-controlled storage is recommended | Sealed moisture-resistant packaging with handling instructions | Improper storage can affect coating, powder adhesion and release performance. | Storage range, shelf-life statement and packaging photographs |
| Packaging | Protection of roll edges and surface during transport | Individual wrapping with protective end caps and a rigid outer carton is common | No crushed edges, moisture damage or telescoping after delivery | Packaging quality protects the film before it reaches the printer. | Packaging specification, carton strength details and shipping photos |
| Sample Policy | Availability of trial rolls or cut-sheet samples | Samples are commonly available before bulk production | Sample produced from the same coating and production line as the quoted batch | A production-representative sample gives a more reliable purchasing decision. | Sample batch number and confirmation of production-line consistency |
| Order Flexibility | Minimum order quantity, custom width and private packaging options | Requirements vary by width, coating, packaging and production schedule | Clear MOQ, lead time and customization conditions before payment | Transparent commercial terms reduce hidden costs and supply interruptions. | Formal quotation listing specifications, tolerances, MOQ and delivery terms |
| Supplier Selection Priority | Overall balance of technical performance, consistency and service | Lowest price alone is not a reliable quality indicator | Passes sample testing, documents quality controls and maintains batch consistency | The most suitable manufacturer is the one that performs reliably with the buyer’s complete DTF process. | Approved sample, signed specification sheet and pre-shipment inspection plan |