Chitosan Bio Finish for Running Tees: Development Timeline
From first enquiry to repeat bulk, this is the typical path for short sleeve running tees built with Chitosan Bio Finish. The steps matter more than the calendar, because skipping one is how odour claims fail later.
Week one: brief and fabric choice
We agree the sweat zone, the use case of road, trail and treadmill running and the target of bacterial reduction above 95% with a bio-based active agent. Fabric is proposed at lightweight single jersey and 110-150 GSM with Chitosan Bio Finish as the odour-control route. The sweat zone for short sleeve running tees is the underarm and the lower back panel, which is where the treatment has to sit.
Week two to three: laboratory validation
Laboratory knits are produced and tested to ISO 20743 antibacterial test. If the result is short, add-on level or yarn type is adjusted before any garment is cut. Every lot is measured against ISO 20743 antibacterial test before the fabric is released for cutting.
Week four to five: wear trial
Samples are worn for road, trail and treadmill running and assessed at the underarm and the lower back panel by a small panel. Laboratory data predicts performance, but wear trials find the problems customers would report. Cost impact is USD 0.20-0.40 per garment, which is usually recovered through fewer returns across a season.
Week six to seven: pre-production
The recipe is fixed, wash durability is confirmed at 10-20 washes, and care wording is written as wash mild and dry away from direct heat. Colour and hand are approved against the same standard as the untreated base fabric. Wear trials were run under road, trail and treadmill running rather than in the laboratory alone.
Bulk and repeats
Bulk ships with a test report per lot. Because the recipe is documented, the second order behaves like the first, which is the part most odour-control programmes get wrong. The care label states wash mild and dry away from direct heat, and that wording is the condition behind 10-20 washes.
