Word: 蔡伦 (càilún) Traditional: 蔡倫 蔡伦 dictionary entry càilún Cai Lun (-121), the inventor of the papermaking process Full dictionary entry for 蔡伦 Example sentences using 蔡伦 2 sentences, showing page 1 of 1. 因为蔡伦，纸才变得便宜。 Yīnwèi Cài Lún, zhǐ cái biànde piányi. It was thanks to Cai Lun that paper became cheap. 蔡伦改进了造纸的方法。 Cài Lún gǎijìnle zàozhǐ de fāngfǎ. Cai Lun improved the method of making paper.