Who has the printing information? Thank you

Printing is a Chinese word, pinyin yìn zhì, which is interpreted as the printing and production of books.

Among the stones selected for the treatment of seals in the past dynasties, the most common are Qingtian stone, Shoushan stone and Chang fossil three categories, in addition to the Inner Mongolia stone and Northeast stone that were introduced into the seal altar for a short time. Due to the different origins, the texture, performance and color of all kinds of stone medals are also different, and each has its own characteristics. A precious stone medallion not only has its own value, but also has a high artistic aesthetic value, so the collection of precious seal stones is not lacking in generations.

Qingtian stone is produced in Qingtian County, Zhejiang Province, and hence the name. Qingtian stone is delicate and warm, very susceptible to knives, and the knife is rich in expressiveness, and is one of the favorite printing materials used by seal carvers. Qingtian stone has blue, yellow, light red and blue gray and other colors, among which the light jelly, white jelly, pine flower jelly are more precious, and the top grade sealing door green is the most famous.

Before the Han Dynasty, the seals were mainly made of copper, and occasionally there were teeth and horns, which were also visible. After the Han Dynasty, other materials appeared, such as: lead, iron, alloy, gemstone, jadeite, turquoise, agate, amber, beeswax, purple sand, stone, porcelain, horn, coral, shell, boxwood, agarwood, rosewood, bamboo root, eggplant, fruit pit, etc.

Copper printing materials have been used for the longest time. Since the crown of the flower milk stone to govern the seal, the Kaiwen people to stone as the printing material of the precedent, and the Ming Wen Peng, He Zhen found the promotion of the light frozen stone, so that the stone material dominates the printing altar so far, and the stone Shoushan stone, Qingtian stone, Chang fossil is the most, to be world-famous.

Color printing is an industrial process in which the original image or text is made into a printing plate, coated with pigment printing ink on the plate, and the pigment printing ink is transferred to paper or other printing materials under pressure, and a large number of copies are rapidly made.

Now color printing is generally used to print flat printing.

Lithography is sometimes called chemical printing, which means that the printed image is on the same plane as the printed plate. It is based on the principle of "oil and water are not mixed" to achieve printing. This type of printing involves the mechanical or manual presentation of an image on a stone or metal surface, and then chemically treats the surface so that the image is partially ink-friendly and the other blank parts are not.

When printing, only the ink-friendly image part is transferred to the paper, forming an imprint. Photographic printing, photolithography, and offset printing are all types of lithography.

彩印 [color printing] (cǎiyìn). On the same layout, the original manuscript is printed in batches with different colors to achieve the color picture effect, and the text, pictures, and other manuscripts are transferred to the surface of paper, fabric, leather and other materials through the processes of plate making, inking, pressurization, etc., and the content of the original manuscript is copied in batches. Nowadays, color printing is generally used for lithographic printing.