There are usually several categories of printed family trees, namely silk cloth thread, gilded hardcover, ordinary hardcover, and antique thread. Among them, there are several kinds of printing paper, and the effect of printing on each kind of paper will be different. Because the paper quality is different, the effect of the presentation will be different. And the advantages and disadvantages will also be very different.
Rice paper is a unique handicraft in China, with the characteristics of texture and toughness, smooth as jade, mothless and incorruptible, and ever-changing ink, enjoying the reputation of "millennium life paper" and being known as a "national treasure". Rice paper is one of the four major inventions of the mainland, which can last for thousands of years and is widely used, of course, there is a reason for it. In ancient times, the inscription on rice paper was used to paint, the ink rhyme was clear, the layers were clear, the bones were both concentrated, the momentum was overflowing, the thick was not muddy, the light was not gray, and its words and paintings jumped on the paper, and the spirit was flying and shining. Even now, many ancient books and calligraphy and paintings have been preserved to this day.
The advantage of rice paper is that it is adhesive and ink absorbent, and even if the rice paper is placed in water, it will not be scattered and decomposed because of the soaking of water. Moreover, rice paper is alkaline, unlike ordinary paper, it can resist acid gases in the air, achieve a role in resisting corrosion, and it is not easy to make the fibers inside the rice paper produce chemical reactions, so that the paper is not easy to turn yellow, and the life of the book becomes shorter. The raw materials of rice paper are sandalwood and straw, which makes the rice paper paper white, but it is not reflective, not dazzling, and it will not be tired to look at for a long time, and the manufacturing material also leads to the water absorption of rice paper will be stronger than that of ordinary paper, so in general, the preservation of the spectrum book will be stored in a sandalwood box, which can not only prevent moisture, but also achieve insect-proof effect.
Coated paper is also known as printing coated paper. Coat the surface of the base paper with a layer of white paint, processed by super calendering, the surface of the paper is smooth, the whiteness is high, the ink absorption and ink absorption performance is very good, the paper surface is smooth and smooth, the smoothness is high, the gloss is good, and the color rendering is high. The printing of coated paper will appear more lustrous in color, but the water resistance is not good, and the powder is easy to stick and fall off after encountering moisture, and cannot be stored for a long time. Coated paper is more suitable for pictures and portraits in the book, which have higher requirements for color rendering. However, since the production process of coated paper is made of a layer of white paint calendering, this will lead to the water resistance of coated paper is not good, in places prone to moisture and moisture, it will easily lead to damage to the paper, and even destroy the score book.
Dowling paper is the most commonly seen paper on the market today, and was introduced to China in the 1920s. Dowling paper is now called offset paper, this kind of paper whiteness is uniform, moderate hardness, flatness and flexibility of these characteristics, is widely used by the printing industry, the advantage of offset paper is that no matter what materials or needs are printed, it can basically be satisfied, but the effect of picture printing is not as shiny and highly saturated as coated paper, the color will be relatively dull, but the hardcover core of offset paper is not easy to round, ridged, especially when the paste is thicker, it is not easy to deform, the elasticity of offset paper is small, the absorption of ink is uniform, smoothness is good, The texture is tight and opaque, the whiteness is good, and the water resistance is strong. However, the acid resistance of offset paper is not as good as that of rice paper, and it will react with acid gases in the air, resulting in paper being easily yellowed, corroded, and even thinned and brittle. The family tree is usually "a small repair in thirty years, a major repair in sixty years", ordinary offset paper prints the family tree, and when it is renovated again after sixty years, the genealogy book may not withstand the "wind and rain" of the past years.
Therefore, the general large family will choose to use rice paper to print the family tree, so that this family tree can be circulated and can withstand the passage of time. Of course, as long as it is properly preserved, other paper products can also be preserved for a period of time.