The â€œlow-heavy corrugated cardboardâ€ researched and developed by Zhejiang Shangfeng Group Co., Ltd. recently passed the appraisal of new products in Zhejiang Province.
The company uses heavy metal blending technology to effectively remove heavy metals from the induction corrugated cardboard. The technology adds appropriate amounts of heavy metal complexation and precipitation agents such as ethylenediaminetetraacetic acid, AJSC and sodium sulfide to the pulp fiber and the production water. After papermaking, the heavy metal content of the corrugated medium paper is greatly reduced, reaching the UN's "Heavy Metal Protocol". The requirements stipulated. This innovative product fills the domestic gap, has significant economic and social benefits, and can provide internationally popular paper packaging containers for export goods.