1). Copy paper: 17g regular specification: used for value-added tax stamps and gift inner packaging, usually pure white.

(2). Typing paper: 28g. Specification: used for coupons and forms. There are seven colors: white, red, yellow, blue, green, light green and purple.

(3). Glossy paper: 35-40g. Positive specification: one side is glossy. It is used for slips, forms and notes. It is low-grade printing paper.

(4). Writing paper: 50-100g, both generous and positive. It is used for low-end printed matter, with domestic paper being the most common.

(5). Offset paper: 60-180g, both generous and positive. It is commonly used for mid-range printed matter, domestically produced, joint ventures and imported.

(6). Newsprint: 55-60g roller paper, positive paper, newspaper selection.

(7). Carbonless paper:

40-150g, both generous and positive, with direct copy function, divided into upper, middle and lower paper,

The upper, middle and lower paper cannot be exchanged or flipped. The paper prices are different and come in seven colors. They are often used in coupons and forms.

(8). Coated paper:

A. Double copper 80-400g, both positive and generous, used for high-end printed matter.

B. Single copper: used for medium and high-end printing on cartons, cartons, handbags, medicine boxes, etc.

(9). Subtle pink paper: 105-400g is used for elegant and high-end color printing.

(10). White paper with gray background: more than 200g, with white and gray background, used for packaging.

(11). White cardboard: 200g, double-sided white, used for mid-range packaging.

(12). Kraft paper: 60-200g, used for packaging, cartons, document bags, portfolio bags and envelopes.

(13). Special paper: generally imported paper, mainly used for printing covers, decorations, handicrafts, high-quality products, etc.

The ink is strong; the fiber of bamboo is brittle and hard, and the paper made from it has weak ink absorption, so it is divided into two categories:

Weak ink-absorbing paper:

Mostly made of bamboo fiber, the paper surface is smooth, the ink floats on the surface, and it is not easy to open slowly, so the colors are bright. Mainly paper types, such as Chengxintang paper, clay-gold paper, and modern foreign paper also belong to this category.

Chengxintang paper:

It is a famous paper used by Empress Li of the Southern Tang Dynasty, and is as famous as Tinggui ink. It is smooth and compact, and is known as "slippery as spring, as dense as ice, and as dense as a seal". It is the top grade of weak blotting paper, the worse one is called jade water paper, and the second worst one is called cold gold paper. "Light and crisp" is its characteristic.

Shu Jian:

It is said that Cai Lun’s ancient papermaking method was passed down from Western Shu, and the Shu Jian produced has been quite famous since the Tang Dynasty, such as Xue Tao Jian, Xie Gong Jian, etc. It is said that the water here is of pure quality, so the paper is of excellent quality. "Xie Gong Jian" is named after the type of Jian created by the teacher. Because it has ten colors, it is also called Ten Color Jian. "Xue Tao Jian" is named after Tao. However, although this kind of colored paper is made according to ancient methods, the dyeing is easy to fade and cannot be passed down for a long time. It is just for entertainment.

Tibetan scripture paper:

Tibetan scripture paper is used in Buddhist temples to write or print Buddhist scriptures. It is also called golden millet paper and comes in two types: yellow and white.

The lacquered paper and wax paper commonly used by people in the Ming and Qing Dynasties are rarely seen today. Although the cold-light paper is the lowest in appearance, it is also rare. Today, Toriko paper made in Japan is generally used, but it is expensive, does not last long, and is not practical.

Strong ink-absorbing paper:

Multiple types of paper are made of wood fiber. They have strong ink-absorbing properties and a rough surface. Once the ink falls off the paper, it easily spreads. Pudding or pulp is often added when writing. The luster of wax-coated paper is not as bright as that of paper, and is more subtle, mainly rice paper. Although it appeared later, it has now replaced writing paper as the most valuable writing paper.

Xuan paper and imitation Xuan paper:

The most precious writing paper today is jade board Xuan paper. The jade board is made of mulberry, short knotted wood, rice straw and sandalwood bark soaked in lime. It has the strongest ink absorption and the best texture. Xuan paper is named after Xuancheng, Anhui Province. However, Xuancheng itself does not produce paper. Instead, the surrounding paper-producing areas all use Xuan as a distribution center.

Let’s continue talking about the precious jade plate. This kind of paper is not suitable for everyone, because it absorbs ink very much, so people who use the pen too slowly will have a hard time using it: as long as the pen stops for a moment, the ink will seep out and form a big ink ball. ! But there are also people who take advantage of its characteristics to write unique characters, such as Bao Shichen's light-ink calligraphy and Qi Baishi's large-scale freehand paintings.

Because rice paper is too absorbent and difficult to write on, some people have improved it: some are made by calendering, adding vitriol, or adding pulp. The improved rice paper has slightly reduced ink absorbency and is easier to write on.

Raw edge paper, Yuan Shu paper and cotton paper:

Rice paper is expensive, and rough edge paper is generally used when practicing calligraphy. This kind of paper was originally used for printing books, but because of its good quality, some people bought books and cut them to practice calligraphy, so it was called "raw edge paper". The raw material used for this paper is mainly bamboo. It is tooth-yellow in color and has a fine texture. It is very different from the machine-made raw edge paper used in the copybooks of primary and middle school students today. Yuan Shu paper is similar to rough-edged paper, but it is unknown today. The tissue paper made in this province can also be regarded as this type. It has gradually improved texture, is quite tough, and is not very expensive. It can be used for calligraphy practice.