HOW TO MAKE DÓ PAPER
- CULTIVATING BUSHES (DƯỚNG) FOR RAW MATERIALS (TRỒNG CÂY NGUYÊN LIỆU)
The raw material for Zó Paper are Dó (same as mitsumata in Japan) and Dướng (same as Kozo in Japan). Dướng is cultivated in the region but Dó grows wild. Dó paper made from Dó bark is well known as the strongest paper in Vietnam and longest story of more than 800 years.
- HARVESTING RAW MATERIALS (THU HOẠCH NGUYÊN LIỆU THÔ)
Branches from the shrubs are usually harvested from December to January. The branches are cut off at an angle with a sickle.
- STEAMING & STRIPPING THE BARK (BÓC VỎ)
The branches are steamed in a process of few hours, which can be easily done by a few people. Steaming makes it easy to strip the branches of their bark.
The branch is held in one hand and the bark in the other, and then both are wedged between the feet so that the bark can be stripped from the branches in such a way that the stripped bark makes a cylinder shape.
- SCRAPING BLACK BARK (LOẠI BỎ VỎ ĐEN)
After the black bark is softened in water, each bark piece is put on a stand and its outer layer is carefully scraped off with a knife. When using Dướng, to heighten the quality, the epidermis is left between the outer layer and the inner layer.
- BOILING (LUỘC)
The bark is unbundled and boiled in a large caldron containing a 12% lime solution. While boiling, the bark is turned every 30 minutes for about 2 hours so that they can be boiled evenly. And then the bark is steamed.
Note: If the bark was stocked and dry, better to deep in the water one night before boiling.
- BEATING (GIÃ VỎ)
The bark is beaten with an oak stick to loosen the individual fibers. In the original Dó paper making method, the bark is beaten 6 times from right to left and back, turned over and beaten again. It is turned over 6 times in total.
- MAKING THE SHEETS (SEO GIẤY)
Water, pulp from the pevious beat, and “mò” (paper dispersants) are combined in a paper-making vat thoroughly mixed with a bamboo stick.
The bamboo screen (liềm seo) is shaken back and forth to spread the solution evenly over the screen, to intertwine fibers and make layers. The thickness varies as the mat has been shaken numerous times. Draining off water. When the layers have the desired thickness, the excess water and paper solution are drained off from the mat.
- PRESSING OUT WATER (ÉP NƯỚC)
Leave the sheets on paper beds overnight then add weights to press out the remaining water use a rotating machine. Repeating the press after every few hours as weight get losen.
- STRIPPING (TÁCH GIẤY)
After pressing off water, the sheets are separated one by one.
- DRYING (PHƠI)
The sheets are paste one by one on the wall. Each batch counts to 50 sheets. This is the traditional way of Dó paper making. During the drying process, Dó paper acquires its proper stiffness and delicate texture.
Using Zó paper made from Dó and Dướng , various types of papers and products are made, including Royal certificate (Sắc phong), and Dong Ho woodblock printing (an Important Intangible Cultural Heritage). Other products name painting and calligraphy paper, certificate paper, natural dyed paper, envelopes, stationery, postcards, business cards, notebooks, letter paper…