论文部分内容阅读
我国是世界上脂松香产量最多的国家,每年除出口外,尚有10万多吨作为内销产品。用木箱或铁桶包装,每包装一吨松香需耗用木材0.7立方米,费用70多元,或0.08吨镀锌铁皮,费用90多元。当前,国外一些国家,已开始使用纸袋包装松香,这对节约包装材料和降低成本,都起了积极的作用。我所于1979年到1981年进行了用复合纸袋包装松香的试验,现介绍如下。
China is the country with the largest output of gum rosin in the world. In addition to its exports every year, there are over 100,000 tons of domestically produced products. In a wooden box or iron drum, a ton of rosin per package will consume 0.7 cubic meters of wood, cost 70 yuan, or 0.08 tons of galvanized sheet metal, the cost of 90 yuan. At present, some foreign countries have begun to use paper bag packaging rosin, which saves packaging materials and reduce costs, have played a positive role. From 1979 to 1981, I carried out the experiment of packing rosin in a compound paper bag, as follows.