考虑到资源和能源的有效使用,人们正在认真研究旧报纸和旧瓦楞纸板的再利用问题。在这方面,高期造纸公司已成功地发展了三种衬垫材料,包括掺有旧瓦楞纸板的发泡聚氨酯衬垫材料,用旧报纸制成的纸浆衬垫模及用旧牛皮纸和旧瓦楞纸板制成的发泡绝热安全纸衬垫材料。特别是引起人们极大注意的掺有旧瓦楞纸板的发泡聚氨酯衬垫 Considering the effective use of resources and energy, people are seriously studying the reuse of old newspapers and old corrugated cardboard. In this regard, high-end paper companies have successfully developed three types of liner materials, including expanded polyurethane liner materials incorporating old corrugated board, pulp liner molds made from old newspapers, and old kraft paper and old corrugated cardboard Foam thermal insulation paper liner made of cardboard. In particular, it has attracted the attention of people with the old corrugated cardboard foam polyurethane liner