Испытание A505 на замшевой обуви — реальный кейс

Кратко: A Vietnam-based shoe factory ran a pre-mass-production trial on suede pairs: sealed boxes with A505 chips versus silica-gel-only controls. The trial locked placement SOP and chip count before bulk packing, reducing the risk of discovering mold only after ocean transit.

Проблема

The brand would not release a large suede PO until the factory showed a documented packing trial — not only a supplier brochure.

Корневая причина

1. Suede is high-risk — porous uppers hold moisture and nutrients for mold.
2. No locked SOP — operators placed silica gel inconsistently; no vapor-phase chip rule.
3. Audit gap — buyers asked for REACH/DMF files plus a practical packing test.

Решение

1. Split sample lots: Control = silica gel only; Trial = silica gel + one A505 chip fixed to the box wall.
2. Seal and hold under agreed factory conditions; photograph placement.
3. Issue placement SOP and attach mold-growth Grade 0 (2025FM00761R01D) / REACH / DMF pack for the brand file.

Результат

Brand QA accepted the trial pack-out. Mass production used one A505 chip per sealed box. Compliance pack referenced REACH SVHC (SGS № CANAF26001423003) — 251 веществ + 4 потенциальных, не обнаружены (≤ 0,1% w/w).

Ограничения

A short factory hold is not a full ocean voyage. It validates placement discipline and documentation readiness; ocean risk still needs container desiccant on long lanes.

Релевантные данные испытаний

Согласно отчёту № 2025FM00761R01D Гуандунского провинциального центра микробиологического анализа и испытаний (метод DA/T 26-2000, выдан 2025-02-26) — класс роста плесени 0, 28 дней, 8 видов, бумага/ткань/кожа — видимый рост отсутствует, A505 anti-mold chips inhibit spore germination throughout the test period.

FAQ

Источники

• Testing & Compliance Center
• A505 product page
• Production humidity testing