How does the Brand tag detect if the paint is peeling?-B
Third. field simulation tests (user scenario replication)Artificially accelerated wearMethod: Use Martindale abrasion meter, load 9kPa pressure, evaluate after 10,000 times of rubbing.Case: A sports brand label needs to pass 2000 times of friction (simulating 1 year of daily use).Chemical corrosion testReagents: 75% alcohol, sweat simulating solution (pH 4.7-7.5), sunscreen (SPF50+).Time: No discoloration, dissolution or loss of adhesion after 24 hours of exposure.Extreme temperature difference testProcedure: -30℃ freezing for 24 hours → 60℃ baking for 2 hours, cycle 5 times.Focus: Check the bonding strength between hot melt adhesive and paint film to avoid delamination. Fourth. data analysis and improvement directionFailure mode analysis (FMEA)Common problems: insufficient adhesion of paint film (45%), poor compatibility of substrate (30%), incomplete curing (25%).Improvement case: A brand improved adhesion to 5B by adding corona treatment (dyne value ≥42).Quality control pointsIncoming material inspection: surface roughness of substrate Ra≤0.8μm (metal), Dyne value≥38 (plastic).Process monitoring: spraying thickness 20-30μm (wet film), curing temperature ±5℃, time ±10%.Finished product inspection: 10% sampling inspection for each batch, non-conforming products should be traced back to the previous 3 processes.Fifth. industry practice casesLuxury labels: UV curing ink + thermal transfer process, passed 3M 810 tape test (adhesion 15N/25mm).Outdoor equipment labels: add polyurethane varnish layer, passed 1000 hours QUV test.FMCG labels: Optimize water-based ink formulation, pass 24 hours sweat immersion test.Conclusion: Detecting whether a Brand tag loses its paint requires a combination of basic laboratory tests (e.g., scratch method, abrasion test) and environmental simulation tests (e.g., humidity, heat, salt spray, UV aging), as well as field simulations (artificial abrasion, chemical corrosion). Optimizing process parameters (e.g., substrate treatment, curing conditions) through failure mode analysis can significantly improve label durability. Industry practice has shown that the use of high adhesion inks, the addition of protective coatings and strict process control are key.
