Core Viewpoint - The article discusses the longevity of the scent emitted by "fragrant beans," which are made of polyvinyl chloride (PVC) and contain a high percentage of plasticizers and fragrances, raising health concerns due to the presence of phthalates [1] Group 1: Product Composition and Longevity - Fragrant beans are composed of PVC with 50% plasticizers added along with fragrances, allowing the scent to persist as long as the plastic does not degrade [1] - The nostalgic "fragrant beans" have been found to still emit scent even after 20 years, surprising many who rediscovered them [1] Group 2: Market Changes and Health Concerns - Due to health risks associated with phthalate-containing plasticizers, many products with added plasticizers and fragrances, including retro fragrant beans, have been removed from the stationery market following the implementation of the 2020 version of the "General Safety Requirements for Student Supplies" [1] - Despite the removal from stationery, the fragrance market remains active, with similar principles applied in products like air fresheners found in bathrooms [1]
20年前的香香豆为什么还能香
Xin Lang Cai Jing·2026-02-03 13:39