| Suitable Printing Technology | Digital textile printing using acid dye ink is generally suitable for nylon and polyamide fabrics. | Acid ink systems; optional pre-treatment and post-steaming or heat-fixing process | Request a test print on the buyer’s actual nylon fabric and review the recommended fixation process. | Critical |
| Usable Printing Width | The machine should support the maximum finished fabric width required for the target products. | 1.6–3.2 m for common textile production equipment | Check the effective print width, not only the maximum media width stated in the quotation. | Critical |
| Production Speed | Compare production speed at the required quality level rather than using the fastest draft-mode figure. | Approximately 30–90 m²/h in production modes; higher speeds may reduce resolution or color density. | Ask for a signed test report showing speed, resolution, pass count, ink consumption, and fabric type. | High |
| Print Resolution | Higher resolution improves fine lines and gradients, but usually lowers operating speed. | 600 × 600 dpi to 1200 × 2400 dpi, depending on print mode and printhead configuration | Inspect small text, skin tones, gradients, and repeated patterns in a physical sample. | High |
| Color Configuration | More color channels can improve gamut and smoothness, but increase ink cost and maintenance requirements. | 4–8 color channels; common combinations include CMYK plus light or additional process colors. | Confirm the exact channel layout, supported ink types, and whether colors can be reconfigured. | High |
| Color Management | A reliable workflow should include RIP software, linearization, profiling, and repeatable color settings. | Basic to advanced ICC color-management workflows | Request color profiles for the buyer’s fabric and ink combination and compare repeat-print samples. | Critical |
| Fabric Feeding and Tension Control | Consistent feeding and tension control are essential to prevent banding, skewing, wrinkles, and pattern distortion. | Motorized take-up and unwind systems; adjustable tension for elastic or lightweight nylon fabric | Test lightweight, stretch, and heavier nylon fabrics at the intended production speed. | Critical |
| Drying and Fixation Compatibility | Nylon acid-dye prints may require steaming or another fixation method, followed by washing and drying. | Printer may be supplied alone or as part of a workflow including steamer, washer, and dryer. | Clarify which equipment is included and obtain wash-fastness results after the complete finishing process. | Critical |
| Color Fastness | Fastness must be assessed for washing, rubbing, perspiration, and light exposure according to the product’s end use. | Results vary by ink, fabric preparation, fixation, washing, and testing standard. | Request independent laboratory reports or test results using recognized ISO, AATCC, or equivalent methods. | Critical |
| Ink Consumption | Ink usage depends on coverage, color density, resolution, fabric, and print mode. | Often approximately 8–25 ml/m² for textile production, with heavy coverage potentially higher. | Use a controlled test file with known coverage and calculate ink cost per square meter. | High |
| Printhead Maintenance | Automatic capping, wiping, circulation, and scheduled cleaning help reduce nozzle blockage and downtime. | Daily basic maintenance plus periodic professional servicing | Ask for the maintenance schedule, replacement procedure, spare-part pricing, and expected printhead life. | High |
| Machine Price | Compare total ownership cost rather than the equipment price alone. | Approximately USD 25,000–120,000 for many new digital textile printer configurations; integrated production lines can cost more. | Request an itemized quotation covering printer, RIP software, installation, training, spare parts, packaging, freight, and taxes. | High |
| Warranty and Technical Support | Support should include remote diagnostics, operating guidance, spare-parts availability, and clear response times. | Common warranty period: 12 months, subject to contract terms and exclusions | Review the written warranty, service-level agreement, training plan, and local or regional support arrangements. | Critical |
| Delivery and Installation | The supplier should provide packing details, installation requirements, commissioning, and operator training. | Typical production lead time: approximately 30–90 days, depending on configuration and order schedule. | Confirm factory acceptance testing, delivery terms, installation dates, utility requirements, and training hours in writing. | High |
| Supplier Reliability | A reliable supplier provides traceable company information, documented testing, transparent contracts, and verifiable customer references. | Assess through multiple independent verification sources rather than online claims alone. | Check registration records, factory or video inspection, export history, reference calls, and payment-risk controls. | Critical |