Cai Lun in the previous paper from waste silk, based on the use of bark, hemp head, rags, waste fishing nets as raw materials, successfully created both a lightweight, and economical paper, summed up a more complete build paper method, paper-making technology to make progress with Yue Yue.

Cai Lun in the former's use of waste silk cotton tree bark, using recycled paper on the basis, the Commission first, rags, waste nets, and succeeded in manufacturing the raw material that is not only light, and the economy of the paper and summed up a set of relatively perfect for the recycled paper

Cai Lun uses the waste silk wadding papermaking in the predecessor in the foundation, uses the bark, the hemp, the rags, the waste fishing net is raw material, has made one kind successfully both facilely, and the economical paper, summarizes a set of more perfect papermaking method, enable the pape

Cai Lun in predecessors of waste silk floss and paper on the basis of the, bark, hemp, rags, scrap the nets as raw material, has succeeded in making a portable, and inexpensive paper, come up with a better method of papermaking, paper technology has Yuet jump progress.

Parchment after people waste silk FLOSS paper based on barks, hemp, rags, scrap the nets as raw material successfully created a lightweight and economical paper summarized a better paper, paper technology Hyatt jumped progress.