Cailun Tomb in Yangxian County is a private museum. The curator is a non-genetic person who makes paper. He likes ancient construction and has been operating hard for 20 years. Cailun Tomb is currently a national cultural and environmental protection unit. As soon as you enter the Bell and Drum Tower, the Temple is dedicated, and Cai Hou Temple is added, and Cai Hou Tomb is added. The courtyard is simple and quiet, with cherry blossoms, magnolias, and scorpions in full bloom. Cailun invented paper, which is the main material of bark and dragon mustard grass, commonly known as leather paper, to show that it is different from the paper. The bark + dragon mustard + white ash = leather paper. The leather paper has excellent toughness, anti-flooding and anti-mold, and can be preserved for thousands of years. Historically used for deeds, house deeds, Huangli, not damaged. Yangxian leather paper is delicate and written. In other areas of Shaanxi, the papermaking method is consistent with Yangxian, but the paper made is rough. For example, Anluo Town, Anluo Water, etc., the hemp paper made is mostly used to cushion coffins and sacrifices. Yangxian leather paper has good compactness and strong adsorption. In addition to writing, you can also pack tea, snacks, and no swirling. The papermaking area of the museum fully shows the leather manufacturing process: soaking 👉 steaming material 👉 smashing skin 👉 ash 👉 bleaching polyester 👉 choose 👉 cutting material 👉 stepping 👉 mash 👉 fishing paper 👉 drying, a total of 12 steps. The curator demonstrated that fishing paper and drying it was very eye-opening. Cai Lun's twilight is worth visiting.