This is the most expensive paper in the world at present;
"Holding the bamboo pen sent by the golden deer, bathing the inspiration brought by the bluebird, facing the rough bark, observing the trend of the stars and circles with budding wisdom, observing the image of the turtle bird, absorbing all the beauty and melting into the rest."
This is the record of Dingbashiro, the ancestor of Dongba of Naxi nationality. Among them, "coarse bark" is Dongba paper for writing more than 20 thousand existing Dongba scriptures. Although time flies, for hundreds of years, Dongba hieroglyphs written on Dongba paper are as bright as new. It can be said that Dongba paper is one of the oldest papers still in use in China today. A foreign collector once bought a Dongba paper in Shenzhen for $20,000, which caused widespread concern.
Dongba paper is made from the bark of Broussonetia papyrifera, that is, Broussonetia papyrifera bark. "Historical Manuscripts of China Papermaking Technology" said: "Both the Beijing Library and the Museum of Chinese History have paper manuscripts made by Naxi people in Ming and Qing Dynasties. This kind of paper is thick and tough, without cords, and the raw material is bark fiber ... After matte, it can be written on both sides. " This paper-making method has been handed down by Dongba family, and it is only circulated in Daju Township of Lijiang County and some Dongba and their descendants in Sanba Naxi Village of Zhongdian County.
Dongba paper is a special paper for writing Dongba characters in ancient Dongba. Its craft is purely a manual workshop, and only Dongba language from this workshop is original and charming. Dongba paper was invented and manufactured by Mr. He's ancestors 300 years ago. After losing 10 years, Mr. He resumed the production of Dongba paper, and developed a series of calligraphy and painting paper, mounting, high-grade business cards, embossed bookmarks, and grass-pressed live-face Tibetan scripture paper on the basis of tradition. Its exquisite texture and insect-proof characteristics are deeply loved by users at home and abroad.
Xuan paper is a kind of precious paper famous at home and abroad. Because this kind of paper is produced near Xuancheng, Anhui, it is called "Xuan paper". The production of Xuan paper has a history of over 500 years. This kind of paper is white, delicate, uniform and soft, which can best express the characteristics of China's calligraphy and painting. Because Xuan paper is not easy to break and change color, many ancient calligraphy and paintings in China are still well preserved after hundreds and thousands of years.
.. types of rice paper
Produced in the hilly and mountainous area of Jingxian County, Anhui Province, China (Jingxian County was Xuanzhou Prefecture in ancient times, and now it belongs to Xuanzhou City, so it is called Xuan Paper.
Types of rice paper
The quality of Xuan paper is white, delicate, soft and uniform, the cotton is tough and firm, slippery but not slippery, transparent and bright, the color is unchanged, and it will not rot, break, age, insect and moth after long-term storage, and it has the reputation of "Millennium Life Paper".
First, according to the proportion of ingredients, it is divided into three categories: cotton material, clean skin and ultra-clean skin.
Cotton material: about 30% celadon skin; Straw accounts for about 70%.
Cleansing skin: about 60% is sandalwood skin; Straw accounts for about 40%.
Ultra-clean skin: sandalwood skin is about 80%; Straw accounts for less than 20%.
Two, according to the number of combined paper, can be divided into single notice and folder notice.
Single Xuan: single-layer Xuan paper, relatively thin.
Clipping: combining two or more original single-layer rice paper into 1 sheet, which is called clipping. Two are called double-clip publicity, and three are called three-clip publicity. The clip is thicker.
Third, according to the size of each piece of paper, it can be divided into four feet, five feet, eight feet, two feet, six feet and painted flowers. The larger the size, the more difficult it is to make, and it is mostly used for government publishing lists or creating large-scale paintings and calligraphy.
Four, according to the degree of processing can be divided into raw propaganda and cooked propaganda.
Winning selection: the base paper is directly copied from the paper slot and dried without any processing. Shengxuan has the characteristics of penetrating ink and absorbing water, which is very suitable for creating freehand brushwork.
Cooked propaganda: Brush a layer of alum water and bone glue on the raw propaganda, which is called cooked propaganda. Cooked Xuan, also known as alum Xuan, is inferior to raw Xuan in ink permeability and water absorption.
Five, cooked publicity can be divided into many kinds through different processing techniques.
Tiger skin announcement: also known as "tiger skin note" and "Jin Li note", it is to dye rice paper into yellow stripes.
Cold gold letterhead: Decorate gold and silver coins or gold powder on paper.
Attention to mica: sprinkle mica powder on the paper.
Cicada stationery: extremely thin rice paper stationery.
Jade Xuan: It is made of more than two layers of Xuan paper supported by starch, and the paper is thick.
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Paper is one of the four great inventions in ancient China. The paper for painting and calligraphy art is made in Xuancheng, Anhui Province, so it is called "Xuan paper". Due to different processing methods, there are raw and cooked points. Raw rice paper has strong water absorption and is mostly used for freehand brushwork. Cooked rice paper has weak water absorption and is mostly used for meticulous painting.
Xuan Paper-Originated from the hilly and mountainous area of Jingxian County, Anhui Province, China (Jingxian County belongs to Xuanzhou City in ancient times, so it is called "Xuan Paper"). Xuan paper-white and delicate, soft and uniform in texture, soft and tough, smooth but not slippery, transparent and bright, consistent in color, durable, unbreakable, aging-resistant, insect-proof and moth-proof, so it has the reputation of "Millennium Life Paper".
There are many kinds of rice paper, which can be divided into three categories according to the material selection: cotton material, clean skin and ultra-clean paper; According to the thickness, it can be divided into: single publicity, double publicity, two-layer clip, three-layer clip and so on. According to paper grain, it can be divided into single silk road, double silk road, rib and turtle grain.
Xuan paper is divided into raw Xuan, cooked Xuan and semi-cooked Xuan. Cooked rice paper is processed with alum water, and the ink is not easy to penetrate and will not melt when it meets water, but the effect is different from other papers. It can be used for detail description, repeated rendering and coloring, and is suitable for painting green and colorful meticulous landscapes. Raw rice paper is not treated with alum, which is characterized by strong water absorption and water permeability. It melts when it meets water, and it is easy to produce rich Mo Yun changes. It can receive the artistic effect of water-light ink printing, vigorous and beautiful, and is mostly used for freehand brushwork landscape painting. Familiar posters are easy to master, but they are also prone to problems of fluency and stagnation; Sheng Xuan's paintings are interesting, but they penetrate quickly and are difficult to master. Therefore, painting landscapes generally likes to use semi-cooked rice paper. Semi-cooked rice paper melts slowly in water, which not only changes Mo Yun, but also does not penetrate too much. Easy to master rubbing, rubbing, tracing and dyeing, and can show rich brushwork and ink interest.
Famous literati in past dynasties cherish and like to use Xuan paper. Painting with inscriptions on rice paper, Mo Yun is clear, well-organized, full of backbone, magnificent, thick but not muddy, light but not gray, and its calligraphy and painting are vivid and shiny on paper. Produce special and complete artistic effects.
Types of rice paper
The main raw materials for papermaking are mostly plant fibers, mainly bamboo and wood. The fiber of wood is elastic, which makes the paper have strong ink absorption. Bamboo fiber is brittle and hard, and the paper made of it has weak ink absorption, so it can be divided into two categories:
Weak blotting paper: made of bamboo fiber, the paper is smooth, the ink floats on the surface, and it is not easy to open slowly, so the color is bright. Mainly paper, such as Tang paper, clay paper and today's foreign paper also belong to this category.
Integrity paper: a famous paper used by Li Houzhu in the Southern Tang Dynasty, which is as famous as Tingguimo. It is characterized by smoothness and compactness, and is known as "as slippery as spring ice and as dense as a seal". It is the top grade of weak blotting paper, which is almost called jade water paper, and the inferior one is called cold jade. "Light and crisp" is its characteristic.
Shu Gui: According to legend, the ancient papermaking method of Cai Lun was spread in West Shu, and the Shu Gui produced by it was quite famous since the Tang Dynasty, such as Xue Taogui and Xie Gonggui. It is said that its water quality is pure, so its paper is great. "Thank the official document" is named after the teacher's creativity, because it has ten colors, also known as ten-color text. "Xue Taogui" is named after pottery, but this kind of colored paper is made according to the ancient method, which is easy to dye and cannot be circulated for a long time. Just for fun.
Tibetan scripture paper: Tibetan scripture paper is a paper used by Buddhist temples to write or print Buddhist scriptures, also known as Jin Sugui, which is available in yellow and white.
Clay gold and wax jars commonly used in Ming and Qing dynasties are rare today, and cold light jars are rare even if they have the lowest appearance. Bird paper made in Japan is widely used now, but it is expensive, not durable and really not practical.
Strong blotting paper: mostly wood fiber, with strong ink absorption and rough surface. When ink falls off the paper, it is easy to disperse, and writing is often done with paste or wax. The paper is bright and delicate, mainly Xuan paper. Although it appeared late, it has replaced paper and become the most valuable writing paper.
Xuan Paper and Imitation Xuan: The most valuable writing paper today is Yupan Xuan. Lime for yubanxuan, mulberry, short wood, straw and sandalwood skin has the strongest ink absorption and the best texture. Xuan paper is named after Xuancheng, Anhui Province, but Xuancheng itself does not produce paper, and the surrounding local paper is declared as scattered land.
Let's continue to talk about the precious jade plate announcement. This kind of paper can't be used by everyone, because it has strong ink absorption, so it is hard for people who use it slowly: as long as they stop writing, the ink will seep out and form a big ink ball! However, some people use its characteristics to write distinctive characters, such as Bao's light ink book and Qi Baishi's freehand brushwork.
Because rice paper is too ink-absorbing and difficult to write, some people have improved it: either calendering, adding glue alum or adding pulp. After improvement, the ink absorption of rice paper is slightly reduced, making it easier to write.
Wool paper, Yuan Shu paper and cotton paper: Xuan paper is expensive and is often used when learning Chinese characters. This kind of paper was originally used to print books, but because of its good paper quality, some people bought books and cut them out to practice writing, so it is called "pleated paper". This kind of paper is mainly made of bamboo, which is yellow in color and excellent in texture, which is very different from the machine-made selvage paper used by primary and secondary school students now. Yuanshu paper is similar to fringed paper, but it is unknown today. The cotton paper produced in this province can also be regarded as this kind, with good texture, toughness and low price, which can be used as calligraphy.
There are many kinds of Xuan paper, with different names and different classification standards and methods.
2. Use and selection of Xuan paper
Tejiepi: the high-quality rice paper, a thousand-year-old paper life, good calligraphy and painting, suitable for making album pages;
Clear leather leaflet: suitable for books and paintings, soft to the touch;
Cotton leaflet: suitable for general painting and calligraphy;
Lian Mian: tissue paper, often used to support the painting core;
Cotton clips: commonly used in calligraphy, the second and third clips are used for mounting and album;
Tortoise pattern propaganda and rib pattern propaganda: making rubbings;
Yupanxuan: Generally used for calligraphy.
Alum Xuan (cooked Xuan): there are ice and snow Xuan, mica paper, cicada wing Xuan and so on. , used for meticulous painting and fine print, not used.
1. coated paper-coated paper coated on the surface of base paper, dried and then calendered. Its grades can be divided into the following categories:
(1) Super coated paper (A0): The top-grade coated paper with total coating amount greater than 25g/m2 and glossiness greater than 80 degrees. The paper is extremely delicate and smooth, and the print is very clear and bright. Suitable for high-end picture books, high-priced product catalogues, important documents and other printed materials with high quality requirements.
(2) Super coated paper (A 1): According to the general classification standard of Japanese paper industry, the paper surface is smooth and detailed, and the printability is excellent, such as high-white super coated paper and crystal diamond super coated paper produced by our company.
(3) Coated paper (A2): single-sided and double-sided coated paper. According to the Japanese paper classification standard, the coating amount on each side is about 10g/m2, which is one of the most commonly used papers for cultural publishing, advertising design, printing and binding, and industrial and commercial circles. Such as single-sided and double-sided coated paper produced by our company.
(4) Lightweight coated paper (A3): coated paper with a coating amount of about 7- 10g/m2 according to Japanese paper classification standards, such as light-weight coated paper and beige light-weight coated paper produced by our company.
(5) Matte coated paper: coated coated paper with polished powder surface, with a gloss of about 20 ~ 40 and high printing gloss, such as the super-snow coated paper produced by our company.
(6) Snow coated coated coated paper: coated with calendered coated paper with glossiness below 20 degrees, the paper is soft, non-reflective and does not hurt vision.
(7) Micro-coated paper: After pigment coating and calendering, the uniformity and smoothness of the paper surface are improved, and the ink retention of the paper is improved.
(8) Marking paper: It is coated and processed directly on the paper machine, which is suitable for printing books with color, registration and monochrome prints, such as marking paper and beige marking paper produced by our company.
(9) Magazine paper: At present, the most commonly used paper for magazines is lightly coated and calendered book printing paper, such as high-grade magazine paper and snowflake magazine paper produced by our company.
2. Dowling paper-Printed writing paper made of chemical pulp is one of the most commonly used paper types for cultural publishing, printing and binding. For example, the Dorian paper produced by our company has different paper colors with dyes, such as blue-white Dorian paper and beige Dorian paper.
3. Template paper-printed writing paper made of chemical pulp and some mechanical pulp, which is slightly worse than forest paper, slightly yellow in color, good in flexibility, strong in tension resistance, low in price and widely used.
4. Coated paper is a kind of forest paper with strong toughness and rough surface, which has waterproof and moisture-proof functions and enhances the wettability and adhesion of coated paper. The company also produces coated paper and yellow coated paper.
5. Book printing paper-die-cut paper specially designed for printing books. Because of eye protection, the paper is mostly light beige, and its characteristics are roughly the same as those of ordinary template paper.
Six, drawing paper-the color of the paper is slightly milky white, which is harmless to vision, strong, abrasion-resistant, lint-free, and has strong water absorption and color rendering.
7. Securities roll paper-advanced writing paper, strong and flexible, which can be used for securities, advanced documents and letters.
8. Poster-thin single-layer glossy paper, suitable for posters, slogans, calendars and ten-line paper.
Typing paper-high-grade thin paper for typing and copying, suitable for reports, subpoenas and stationery.
Bible paper-contains a lot of titanium dioxide filler, is light and opaque, and is specially used for printing bibles, dictionaries or air express.
1 1. Box-sealing paper-single-sided glossy paper for document copying and stamp packaging, with strong paper quality and strong luster on one side.
12. Cigarette paper-contains a large amount of calcium carbonate filler, which makes the paper buffer when burning because calcium carbonate is decomposed into carbon dioxide to avoid burning too fast.
13. Grazing paper-highly pulped and calendered paper used for packaging, photo albums, stamp albums and other individual pages.
Newsprint-the main raw material is ground wood pulp, the whiteness should be above 55%GE, and the oil permeability should be appropriate.
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◎ Household paper-generally refers to consumer cleaning paper towels, including: facial paper, napkins, toilet paper, kitchen paper towels, etc.
1. tissue paper-tissue paper for makeup and cleaning. Its raw materials are mostly bleached chemical pulp and snail pulp. When processed into wrinkles, it has the characteristics of not tearing easily, being flexible, not pilling easily, being moisture-proof, and containing no migratable fluorescent agent.
2. Napkins-Paper used to replace napkins when eating is generally 65,438+000% native chemical pulp or mixed with some native mechanical wood pulp, and it is not allowed to contain transferable fluorescent agent.
3. Kitchen paper towels-Wrinkled paper made of bleached chemical pulp and wet strength agent can be wiped in the kitchen instead of towels.
Toilet paper-toilet paper with moderate softness and easy water absorption. Products can be divided into folded toilet paper and patterned toilet paper according to the surface state, and can be divided into rolled (including single layer and double layer) and flat (including folding and continuous extraction) according to the structural shape. The so-called roll is to make a row of small holes parallel to the scroll at regular intervals, so that the paper can be easily torn off from the roll.
5. Sanitary cotton-generally composed of covering layer, absorber and leakproof body. Its texture should be soft, neutral, free of stains, impurities and pulp, and its appearance should be free of shedding, breaking and holes.
At present, Zheng Long Company produces "Spring Breeze Series" household paper products, mainly including: removable toilet paper, pocket toilet paper, flat toilet paper, roll toilet paper, removable toilet paper, kitchen toilet paper, towels and other products.
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Industrial paper
1. Cardboard-Kraft paper is a corrugated board specially used for non-corrugated paper. Its surface is usually made of unbleached kraft pulp, and the middle and bottom layers can be mixed with waste paper pulp. For example, the kraft paper board produced by our company has higher bursting strength, ring compression strength, better printability and appearance.
2. Corrugated base paper-Corrugated base paper is base paper made of semi-chemical pulp, which is used to make corrugated layer of corrugated board. For example, our company has two factories, Dayuan Factory and Houli Factory, which produce corrugated medium paper. Their products have high ring pressure, good granularity and good adhesion.
3. Packaging paper-Packaging paper generally refers to packaging paper, such as cement bag paper, laminated asphalt paper, aluminum tissue paper, bag kraft paper, etc.
Four, coated white board (coated white board) refers to one or both sides with bleached pulp and coated cardboard, the middle layer is made of waste paper pulp or other pulp. For example, the single-sided coated white paperboard produced by our factory in Hou Li has good printability, whiteness, gloss, interlaminar strength and folding resistance.
Five, uncoated white board (white board)-one or both sides made of uncoated bleached pulp, middle layer made of waste paper pulp.
6. particleboard-particleboard is a cardboard made of waste paper, which is generally made by a rotary screen machine, such as the particleboard produced by our company's Hsinchu factory.
7. Base paper for asphalt roofing-Base paper for linoleum is a base paper specially made of asphalt, which is made of raw materials such as wood pulp waste paper, rags, wool, etc., which are loose and soft but still have suitable strength.
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Information file:
1. One side of carbonless copy paper is coated with microcapsules (CB), which contain pigments, and the other side is coated with a developer (CF side). When using paper, the CB face should correspond to the CF face. When the paper is pressed, the microcapsules on CB surface rupture, the pigment escapes and reacts with the developer on CF surface to develop color. Using this principle, the effect of replication can be achieved. Generally speaking, NCR can be divided into three types: upper paper, middle paper and lower paper, which can be prepared according to the required number of copies.
Second, the surface of thermal paper is coated with pigment, which can be colored by chemical reaction after heating, and the color can be colored in the heating area by using a movable thermal head. The fax machine uses this principle to realize fax phase development with thermal paper.
3. The ink of the inkjet printing paper is directly sprayed on the surface of the paper through the nozzle to form a developing phase. In order to achieve the characteristics of small diameter, neat edges and high density, paper must have a fine porous structure. However, in multi-color inkjet, in order to reduce burrs, mixed errors and through printing, the water absorption and water repellency of the paper surface must be strictly controlled.
4. The paper used in ordinary paper copying (ppc) copier should have the characteristics of stable size, antistatic property and good carbon ink fixation, so that the copying operation can be carried out smoothly.
5. Even (heavy) nitrogen photosensitive paper (diazo paper) Positive photosensitive paper made by coating even (heavy) nitrogen photosensitive liquid on base paper. In order to achieve uniform and detailed photosensitive effect, the coated base paper must be evenly interwoven, free of impurities, with low pH value, high sizing degree and uniform and detailed paper surface.
6. Electrostatic recording paper is coated with conductive layer and insulating layer paint, which can accept the voltage released by the needle electrode to destroy the insulation on the paper and form an electrostatic latent image with the conductive layer, so that the developer can be attached to the pattern when it is added, and then fixed on the paper by hot melting to produce a clear pattern.
Seven, optical reading paper (optical characters &; Mark Reader Paper) is used for printing paper on optical reading machine and reading characters. This number is called QCR, and this special mark is called OMR because it is read by optical absorption or reflection. In order to avoid misreading, the cleanliness, smoothness, wear resistance, dimensional stability and electrification prevention of paper are required.
Eight, magnetic ink character reading paper (MICR paper) The paper surface is coated with strong magnetic particle powder, which can be printed with magnetic ink with patterns that can be recognized by computers, and is mainly used for valuable tickets, such as valuable securities, bus tickets, passes, etc.
printing ink
Commonly known as white newspaper, it is characterized by softness and porosity, certain institutional strength and good absorbability, which can make the ink penetrate and fix in a short time and will not stick dirty when folded. It is used to print newspapers, periodicals and general books on high-speed rotating machines. The basis weight of newsprint is 5 1g/m2, and the width of rolled newsprint is 1572mm, 1562mm, 787mm and 781mm.. The width of lithographic paper is 787mm, w 1092. Newsprint is suitable for printing and opaque, but its whiteness is low and its surface smoothness is different. When printing pictures, use a thick screen, which is easy to turn yellow and brittle after sunlight, and should not be stored for a long time.
Cardboard for box making
Also known as hemp cardboard, it is a relatively strong cardboard for cartons, which is widely used for shipping books, department stores, radios, televisions, machine parts, food and so on. The quantities are 200g/m2, 3 10/0g/m2, 420g/m2 and 530g/m2. Smooth surface and good mechanical strength.
coated paper
Also known as coated paper, it is an advanced printing paper which is made by coating a layer of white paint made of calcium carbonate or white clay and adhesive on the base paper, drying and calendering. Because of its fineness and whiteness, high smoothness, good gloss and moderate oil absorption, it is suitable for copper plate printing or offset printing, printing color or monochrome pictorial, pictures, calendars, maps and books, and also packaging and printing paper. It is divided into single-sided coating and double-sided coating, and the two kinds are divided into special number, 1 No.,No.2 and No.3, and the quantitative is 80 g/m2 to 250 g/m2. Coated paper requires high coating strength, no powder loss, and can be suitable for fine screen printing above 60 lines /cm.
offset paper
Formerly known as "Dowling Paper", offset press is used for books and periodicals. Suitable for printing monochrome or multicolor book covers, characters, inserts, pictorial, maps, posters, color trademarks and various packaging products. Offset printing paper is divided into special number, 1 number and No.2, and the quantity varies from 70g/m2 to 150g/m2. Pulp has high strength and printability. Offset printing is a relatively advanced printing paper for books and periodicals, which requires high contrast, expansion and contraction ratio and surface strength, and the acidity and alkalinity should be close to neutral or weakly alkaline, so as not to affect the printing paper, and the basis weight is 40 g/m2 to 80 g/m2. In recent years, low-volume offset newsprint and offset book paper have been successfully trial-produced for offset book paper.
Letterpress/letterpress paper
Paper suitable for letterpress printing of various books, stationery and magazines. The basis weights are 52g/m2 and 60g/m2. There are two kinds of paper: roll paper and plain paper. Smoothness 30m, opacity not less than 88%. Letterpress printing paper is a widely used book paper, which is slightly smoother than newsprint and has a longer shelf life, but it is easy to lose hair and powder, so it is not suitable for offset printing books and periodicals. This kind of paper writes easily.
Straw board
Also known as yellow cardboard or horse manure paper, it is yellow packaging cardboard. Mainly used for the cover lining of commodity packaging, cartons and books. The ration is 200g/m2 to 860g/m2. Commonly used are No.8 420g, 10 530g, 12 640g. Straw cardboard requires dense and firm quality, smooth paper surface and certain mechanical strength and toughness.
White double-layer paperboard
Manila paper, also known as Manila paper, is a relatively high-grade white packaging paperboard. Used for printing educational pictures of children and trademarks of stationery, cosmetics and medicines. The ration is 200g/m2 to 400g/m2. Uniform thickness, no hair loss, no powder loss, tough, not easy to break when folding.
binding board
The important materials of book boxes are white cardboard and yellow cardboard, which are mainly used to make hardcover book boxes and envelopes. The hardcover bookcase with cardboard as the skeleton has the advantages of firmness, beauty and long-term preservation.
Calcium paper
The appearance is similar to that of paper, which is resistant to water immersion, does not absorb moisture, is not easy to burn, has high bursting resistance, tear resistance and low production cost. It is made of 160 degree strong rubbing and calendering, and its thickness is similar to that of cardboard. It can also be made into thick cardboard, which has certain penetration and absorption ability to ink and can print clear pictures and words. It can be used for printing books and cards, valuable securities, labels and color printed matter, and can also be used for making corrugated boxes, transporting food and goods that need moisture-proof and oil-proof.
kraft paper
It is a tough and waterproof wrapping paper, brown and widely used. It is often used to make paper bags, envelopes, record covers, documents and sandpaper. The quantitative range is 40 g/m2 to 120 g/m2, and there are differences between roll paper and plain paper, single side, double side and stripes. The main quality requirements are flexibility and firmness, high bursting resistance, and being able to withstand large tensile force and pressure without cracking.
cellophane paper
Also known as transparent paper, it is a high-grade packaging decorative paper as transparent as glass. Used for packaging food, shirts, cigarettes, cosmetics and other commodities. The ration is 30 grams/square meter. In addition to being transparent and colorless, there are many colors such as gold, pink and green. Cellophane is airtight, oily and watery, soft and tough, colorless, transparent and shiny. After sealing, it can be moisture-proof and rust-proof, but it will crack with a slight crack. Because of its great longitudinal strength, it can be used as a paper rope. Waste cellophane cannot be recycled.
Sealing paper
It is an extremely thin single-sided optical writing paper with a basis weight of only 20g/m2. Originally used mainly for stamps and insured letters. Now it is mostly used in cosmetics, fruit and food packaging and cigarette lining. After printing and waxing, it can be used as candy wrapping paper, and can also be used to print documents, subpoenas or multi-page copy paper instead of typing paper and copy paper. Quality requirements are thin and tough, good transparency, high tension and low air permeability.
China painting and calligraphy paper
It is paper written and painted with a brush, including meta-book paper, rice paper, wrinkled paper and so on. Yuanshu paper is made of bamboo, bark, rags, old hemp, straw and other plant fibers through soaking, cooking, natural bleaching and grinding. Hand-made paper on bamboo curtain, pressed and dried on fire wall, the paper is white (or yellowish), uniform and soft, easy to absorb ink and durable. Xuan paper is a kind of painting and calligraphy paper made of sandalwood bark and a small amount of straw pulp. Raw rice paper is suitable for freehand brushwork calligraphy, and cooked rice paper made of it is suitable for meticulous painting, white and flexible, durable and not easy to be eaten by insects. It is famous for its production in Xuancheng, Anhui. Fringed paper is a kind of writing paper with brush made of tender bamboo, and its color is light yellow and white. They are all made of bamboo curtains and used to print ancient books, rubbings, stationery and fans.
glazed paper
It is a single-sided glossy paper for writing, office and publicity slogans. It can also be used for pasting paper boxes, packaging goods, printing calendars, stationery and invoices. It has a wide range of uses and is a common household paper. It used to be called office paper or snow lotus paper. There are three special numbers, 1 and 2, and the quantitative range is from 18 g/m2 to 40 g/m2. The quality requires uniform thickness, smooth paper surface, light writing sizing and certain water resistance. Colored glossy paper, also called slogan paper, is mainly used to write slogans!
Tissue paper for copying
It is a kind of thin paper used for typing and copying, and is also used to print documents, bills or stationery at present. It is divided into three grades: special number, 1 number and No.2. The quantitative range is 24 g/m2 to 30 g/m2, and the ordinary type is 28 g/m2. It requires that the thickness of the paper should not exceed 0.05 mm, the thickness should be consistent, and multiple pages can be typed and copied at one time. The paper should be strong and smooth, and it should not be soaked when writing. Color printing paper is used to print multiple subpoenas or subpoenas.
writing paper
It is a large amount of cultural paper, suitable for writing forms, exercise books, account books, record books and so on. It is divided into five grades: special number, 1, 2, 3 and 4, and the quantitative range is 45g/m2 to 80g/m2.
Quality requirements: white in color, smooth on both sides, dense in texture, and not soaked when writing.
Gravure paper
Paper used for printing various color printed matter, periodicals, comic books, picture books, stamps and securities. Its specifications and dimensions are basically the same as newsprint, relief paper and offset paper, and it is also divided into two types: roll paper and flat paper. Gravure paper printing requires high smoothness and shrinkage, high whiteness, good smoothness and softness.
cast coat paper
Also known as glass powder paper, it is an advanced coated printing paper with a particularly smooth surface. It is obtained by coating the base paper twice or once with a thick coating amount (20-39g on one side). When the coating is wet, the surface of the coating is heated and dried close to the highly polished chrome-plated drying cylinder at a speed of about 100m or lower, with a gloss of about 85, and no need for calendering. Coated paper can be embossed with an embossing roller to make cloth paper or chicken skin paper. Cast-coated paper mainly prints covers, inserts and high-grade cartons, while woven paper and chicken skin paper are mostly used to print calendars and business cards.
Matt paper
The official name is matt coated paper, which is lower in reflectivity than coated paper when observed in the sun. The pattern printed with it is not as bright as coated paper, but it is more exquisite and upscale than coated paper.