How do manufacturers test the fade resistance of printed logos on plastic trash cans?

Manufacturers employ rigorous testing protocols to evaluate the fade resistance of printed logos on plastic trash cans, ensuring long-term durability and brand visibility. The primary method involves accelerated weathering tests, where samples are exposed to intense UV radiation, moisture, and temperature cycles in specialized chambers that simulate years of outdoor exposure in a condensed timeframe. These chambers, such as QUV or Q-Sun testers, replicate solar radiation and environmental conditions that cause color fading. Additionally, xenon-arc testing provides full-spectrum light exposure that mimics sunlight more accurately. Manufacturers measure color fastness using spectrophotometers to quantify color changes against standardized scales like Delta-E, which detects even minor variations imperceptible to the human eye. Physical abrasion tests are also conducted to assess the logo's resistance to cleaning and handling. Quality control teams often supplement lab tests with real-world outdoor exposure at certified testing sites in extreme climates like Florida or Arizona for validation. The ink composition itself undergoes scrutiny, with UV-resistant additives and premium pigments being tested for compatibility with HDPE or polypropylene substrates. Successful logos must maintain chromatic integrity after equivalent 2-5 years of simulated exposure while retaining sharp graphic details without cracking or peeling.