How does the Brand tag detect if the paint is peeling?-B

Third. Brand tag field simulation tests (user scenario replication)

Artificially accelerated wear

Method: Use Martindale abrasion meter, load 9kPa pressure, evaluate after 10,000 times of rubbing.

Case: A sports brand tag needs to pass 2000 times of friction (simulating 1 year of daily use).

Brand tag chemical corrosion test

Reagents: 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 test

Procedure: -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. Brand tag data analysis and improvement direction

Failure 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).

Brand tag quality control points

Incoming 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 cases

Luxury 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.