据日本油漆涂料株式会社介绍,就地发泡系统从研制成功以来已有10年多历史,美国 NCR 公司从73年开始正式采用这种聚氨酯原液就地发泡包装系统,并取得了成效。而日在过去虽采用了以发泡苯乙烯或发泡乙烯为原液的就地发泡包装,但由于原液靠进口,成本高,末得到广泛普及。而使用聚氨酯原液就地发泡包装也只是近年来开始实际运用。日本一些包装厂在正式使用聚氨酯原 According to Japan’s Paint and Coatings Co., Ltd. introduced in-situ foam system from the successful development of more than 10 years of history, the United States NCR company from 73 onwards formally adopted this polyurethane liquid in situ foam packaging system and achieved results. In the past, Japan used foaming styrene or foamed ethylene as raw material in-place foam packaging, but because of the liquid by the import, the high cost, the end has been widely spread. The use of polyurethane foam in situ packaging is only practical in recent years. Some Japanese packaging plant in the official use of polyurethane original