造纸术英文版PPT
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Chinese papermaking 单击输入您的封面副标题One of the four great inventions in China.The inventerCaiLun , word Jingzhong, from Guiyang County in the Eastern Han Dynasty. He summed up the past papermaking experience, innovated the papermaking process, improved the papermaking technology, and made "Cai Hou paper". After the court of the court, Emperor Han and Emperor ordered the promotion of his paper-making method. His papermaking has made outstanding contributions to the spread of human culture and the progress of world civilization, and has been respected by people for thousands of years.Introduction to PapermakingPapermaking is said to have been invented by Cai Lun of the Eastern Han Dynasty in China, but there is also archaeological evidence that papermaking has existed for a long time. Cai Lun is only an important developer of improving papermaking, making the success rate of papermaking higher and the cost lower. In the early days of papermaking, the raw materials for papermaking were mainly bark and rags.Papermaking steps.The first is the separation of raw materials, that is, by retting, soaking or cooking, the raw materials can be deglued in lye and dispersed into fibers.
The second is beating, that is, cutting and pounding the fiber, and turning the fiber into pulp.
The third is to copy the pulp, that is, to infiltrate the pulp into slurry, and then use the paper catcher (strip mat) to make the pulp interwoven 内容过长，仅展示头部和尾部部分文字预览，全文请查看图片预览。 nt of ancient cultural undertakings and promotes the spread of human civilization.
To the West: replacing the writing materials sheepskin and calf skin, which have been used for a long time in Europe, and promoting the popularization of European cultural knowledge and the development of culture.[文章尾部最后300字内容到此结束,中间部分内容请查看底下的图片预览]请点击下方选择您需要的文档下载。
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