Preparation of formaldehyde scavenging cotton fabric and its properties

Based on the reactive mechanism between plant poly-phenols and formaldehyde,a formaldehyde-scavenging agent was prepared in order to decrease formaldehyde pollution inside the house.The cotton fabric treated with the formaldehyde scavenging agent and followed by after-treatment of metallic Zn2+ion can remarkably remove air formaldehyde and has durable washability.The results showed that under the conditions of pH=6,the formaldehyde scavenging agent made from polyphenol extraction and surfactants could react with formaldehyde solution(30μg/mL) with the volume ratio of 1∶1 at 60℃,and the removal rate of formaldehyde reached 74.8% after 12 hours.The removal rate of formaldehyde for the treated cotton fabric was up to 91.8%,and reached 80% after 10 washing cycles.