The spread of papermaking is one of the four great inventions of ancient China. As early as 1800 years ago, Cai Lun inventor of papermaking that the use of tree skin (that bark), hemp head (hemp litter), open cloth (rags), broken fishing nets and other made from raw materials, "Cai Hou paper ', no carbon paper base, dedicated to the Eastern Han Dynasty in 105 AD, Dili, was highly commended. papermaking invention for China and the world has made great contributions to civilization and progress. In the early invention of papermaking, paper raw materials are mainly rags and bark At that time rag mainly hemp fiber, ramie and hemp varieties is allegedly in the country's cotton is the early Eastern Han leaves, five of carbonless paper, while imported from India and Buddhism, it should be later used in textile Some things. Also the bark was used mainly to construct the skin (ie mulberry leather), of Citrus parchment has been called "Mr. Chu," he said. NCR (no carbon paper) manufacturing such paper does not use carbon replication feed ingredient, thus named it carbonless paper, carbonless paper, carbonless paper referred to NCR included in the list of specialty papers reasons: First, non-carbon paper receipts, paper structure and special non-carbon paper generally divided into upper, middle and lower sheet of paper, there are three different per sheet structure, which in the past that are not plain paper. Then, add special chemicals, for example carbon paper required for preparing microcapsules, use of non- dyes, coloring agents, and plain paper but simply add general chemicals (such as gum rosin, modified starch) on it. Third, the special process. carbonless paper smear job varies according to different levels, We need to go through several smear, and higher processing technical difficulty. And sometimes you do not have a separate plain paper processed. Fourth, special applications. carbonless paper mostly for monetary and financial, aerospace, telecommunications, national defense and other departments. Jinzhou carbonless paper _ _ Paper carbonless paper receipt provided by the Xinxiang City Jinzhou New Materials Co., Ltd. Jinzhou Paper carbonless paper _ _ carbonless paper receipt Xinxiang City, New Materials Co., Ltd. Jinzhou (www.hnjinzhou .com) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, for the latest information, contact: Wang Qiang.