The earliest paper was made 2,200 years ago, at the beginning of the Western Han Dynasty, but it was still crude and not widely used. In 105 AD, the Eastern Han Cai Lun improved it, and it is considered the originator of modern papermaking.
The raw materials for papermaking are mainly plant fibers, raw materials containing cellulose, hemicellulose, lignin, in addition to the three main components, there are other components with less content, such as resin, ash and so on. In addition, there are auxiliary components such as sodium sulfate.
Paper is generally divided into two kinds of flat and roll. Flat paper is mainly used for sheet-by-sheet use, such as for platform printing presses and writing, painting and other paper. Roll paper is mainly used for continuous processing machinery, such as for rotary printing, bag making machine continuous bag making, cigarette machine continuous package of cigarettes and so on.
Extended information
Paper classification:
1, according to the production method is divided into handmade paper and mechanical paper.
2, according to the thickness and weight of paper is divided into paper and cardboard.
3, according to the use can be divided into: packaging paper, printing paper, industrial paper, office, cultural paper, living paper and specialty paper.
Baidu Encyclopedia-Paper
2. Knowledge about paper
The earliest paper in 2200 years ago, the early Western Han Dynasty has a paper, but still very rough, not widely used.
105 A.D., the Eastern Han Cai Lun improved, is considered the originator of modern papermaking. Paper raw materials are mainly plant fibers, raw materials in addition to containing cellulose, hemicellulose, lignin three major components, there are other components with less content, such as resin, ash, etc..
In addition, there are auxiliary components such as sodium sulfate. Paper is generally divided into two kinds of flat and roll.
Flatbed paper is mainly used for sheet-by-sheet use, such as for platform printing presses and writing, painting and other paper. Roll paper is mainly used for continuous processing machinery, such as for rotary printing, bag making machine continuous bag making, cigarette machine continuous package of cigarettes and so on.
Extended information on the classification of paper: 1, according to the production method is divided into handmade paper and mechanical paper. 2, according to the thickness and weight of the paper is divided into paper and cardboard.
3, according to the use can be divided into: packaging paper, printing paper, industrial paper, office, cultural paper, living paper and specialty paper. Baidu Encyclopedia-Paper.
3. Some knowledge about paper
Paper In ancient times, our ancestors mainly relied on knotted rope to keep track of things, and then gradually invented the written word, began to use the oracle bone as a writing material.
Later, they discovered and utilized bamboo and wood chips and thick silk as writing materials. But thick silk was too expensive and bamboo was too bulky, which led to the invention of paper.
According to evidence, China's Western Han Dynasty has begun the production of paper, the Wei Jin and North and South Dynasties period paper widely spread. Commonly used by people, papermaking further improved.
The raw materials for papermaking are also diversified, the paper has a variety of names such as bamboo curtain paper, rattan paper, fish egg paper ...... Cai Lun papermaking a wide range of raw materials to rotten fishnet made paper called net paper, rags made of paper called cloth paper. During the Sui and Tang dynasties, the famous Xuan paper was born.
(In Xuanzhou, Anhui Province, the main producer of Xuan paper, there is such a legend: Cai Lun's disciple Kong Dan, in the southern Anhui Province to make paper for the industry, he has always wanted to create a particularly ideal white paper, used to come for the master to draw and repair the genealogy. But after many trials could not get what he wanted.
Once in the mountains, he happened to see some sandalwood trees fell next to the mountain streams, due to the depth of time, water-soaked rot white. Later, he used this bark to make paper, and finally succeeded.
It can be concluded that: the use of bark manufacturing rice paper, in the Tang Dynasty when it is more prevalent.) Tang Dynasty in the previous generation on the basis of dyeing yellow paper, and evenly coated with wax on the paper, so that the paper has a glossy and moist, beautiful advantages, known as hard yellow paper.
The paper industry in the Fifth Dynasty still continued to develop, Shezhou manufactured Chengxintang paper, until the Northern Song Dynasty, has been recognized as the best paper. By the Ming and Qing Dynasties, the paper industry and prosperity and innovation.
All kinds of paper once again prevalent, in the texture of the white paper and elegant color paper, color to the sharp and quiet, such as Kangxi, Qianlong period of powder wax paper, printing and painting stained flower paper, paper production, to the Qing Dynasty, has reached the point of perfection. (The process of papermaking) General printing paper production is divided into pulp and papermaking two basic processes.
Pulping is the use of mechanical methods, chemical methods, or a combination of both methods to dissociate plant fiber raw materials into natural pulp or bleached pulp. Paper is suspended in the water pulp fibers, after a variety of processes combined into a variety of requirements of the paper.
Paper mills generally need to store enough raw materials for 4 to 6 months, so that the raw materials in storage through natural fermentation, in order to facilitate pulping, while ensuring continuous production of paper mills. By the preparation section of the reeds, wheat grass and wood and other raw materials cut into pieces (for the production of chemical pulp) or wood broken (for the production of grinding wood pulp), and then the small pieces of raw materials into the cooking device with chemical liquid, steam cooking, the raw materials cooked into pulp, or or wood broken to the grinding machine grinding pulp, can also be a certain degree of cooking and then grinding into pulp.
The pulp is then washed with a large amount of water and the coarse pieces, knots, stones and sand in the pulp are removed through screening and purification. Then according to the requirements of the paper type, bleach the pulp to the required whiteness, and then use the pulping equipment for pulping.
Then add in the pulp to improve the performance of paper filler, glue, sizing agent and other auxiliary materials, and again for purification and screening, and finally sent to the paper machine through the net part of the filtration, press dewatering, drying dryer, calendering winding, and slitting rewinding or cutting production of rolls and flat board paper. If the production to produce coated printing paper, you need to dry the middle or the production of rolls of paper after the coating process and realize.
6 In addition to the above basic process, it also includes some auxiliary processes, such as the preparation of cooking liquid, the preparation of bleaching liquid, the boiling of rubber and the recovery of chemicals and heat in the cooking waste liquid and exhaust gas. Baqiao Paper: In 1957, ancient paper from the Western Han Dynasty dating back to the 2nd century BC was unearthed at Baqiao in the eastern suburb of Xi'an.
When unearthed, it was a stack of paper pieces, large and small, the largest 10*10 centimeters, the smallest 3*4 centimeters, beige in color. After repeated scientific examination, it was found that it is mainly made of hemp and a small amount of ramie fibers, that is, this is "plant fiber paper.
The tomb was built no later than the time of Emperor Wu of the Han Dynasty, from 140 to 87 BC, so it can be concluded that more than 2,000 years ago, in the 2nd century BC, China already produced and used plant fiber paper. This kind of Baqiao paper is the earliest paper in the world unearthed by archaeology.
Cai Lun Paper: Cai Lun, the inventor of papermaking in the Han Dynasty, was known as Jingzhong. He was a native of Guiyang (present-day Chenzhou City, Hunan Province).
Ming Emperor Yongping eighteen years (75) into the palace as a eunuch. In the first year of Zhanghe (87) of the Eastern Han Dynasty, he was appointed as a Shangfang order.
Yuanxingyuan (105) invented papermaking. He summarized the experience of previous generations, began to have bark, hemp, rags, old fishing nets and other raw materials through the frustration, pounding, copying, baking and other processes of papermaking, known as "Caihou paper", the reform and popularization of papermaking has made a great contribution to the later generations of people passed on to the invention of papermaking.
Paper-making is one of the four great inventions of ancient China, the dissemination of world culture, development, make great contributions. Zuo Bo paper: After Cai Lun, others continued to improve his method.
About eighty years after the death of Cai Lun (the end of the Eastern Han Dynasty), there was another paper maker named Zuo Bo. The paper he made was of uniform thickness, fine texture and bright color.
At that time, people called this paper "Zuo Bo paper". Unfortunately, history has not recorded the raw materials and manufacturing methods used by Zuo Bo.
Vine paper: Wei, Jin and North and South Dynasties period of paper widely spread, generally used by people, paper technology to further improve the papermaking region by the Jin before the concentration of Henan Luoyang area and gradually spread to the Yue, Shu, Shao, Yang and Anhui, Gan and other places, production, quality is increasing day by day. Paper raw materials are also diversified, the name of the paper a lot.
Hedges has a rattan paper with rattan skin as raw material, the paper is uniformly fine and smooth, white as jade, and does not leave ink. Attachment: the history of paper Paper is one of the four great inventions of science and technology in ancient China, which, together with the compass, gunpowder, and printing, provided a material and technical basis for the prosperity of ancient culture in China.
The invention of paper put an end to the complicated history of ancient paperwork, and greatly facilitated the dissemination and development of culture. In the ancient times, our ancestors mainly relied on the knotted rope to keep track of things, and then gradually invented the writing, and began to use the oracle bone as a writing material.
Later, they discovered and utilized bamboo and wood (i.e., jianzhi) as well as thick silk as writing materials. But thick silk was too expensive and bamboo was too heavy, which led to the invention of paper.
According to evidence, paper production began during the Western Han Dynasty, and in 1957, the Shaanxi Provincial Museum unearthed a collection of what it called "Baqiao paper" in a Western Han tomb near Baqiao in the eastern suburbs of Xi'an, dating from the time of Emperor Wu of the Western Han Dynasty.
This was followed by Rob in Xinjiang.
4. Information on cherishing paper
The surge in demand for pulp is one of the reasons for the increase in wood consumption.
The country's annual paper consumption of 10 million cubic meters of wood, more than 1.3 million tons of imported wood pulp, more than 4 million tons of imported pulp, which has to cut down how many trees ah! The massive waste of paper not only causes deforestation, but also due to the production of sewage discharged so that the rivers and lakes are seriously polluted. You may not have direct deforestation, but do you think, wood is the main raw material for paper, waste of paper is equal to join the ranks of the view of the forest.
Cherish paper is to cherish our forest resources, please do not just throw away the white paper, make full use of the blank space of the paper. Used a side of the paper can be turned over to do draft paper, note paper, or self-made notebooks to use, expired calendars can be wrapped book cover.
Refuse to accept the useless propaganda paper distributed everywhere, the manufacture of these propaganda will be a large amount of waste of paper, but also because of the distribution of everywhere, paste and damage to the city's health. You must not be able to get away from paper in your studies.
Do you know, a large number of paper is made of wood, the national annual paper consumption of 10 million cubic meters of wood. The process of papermaking will also discharge a large amount of wastewater, pollution of rivers, it causes pollution accounted for more than 30% of the pollution of the entire waters! Save paper.
That is, to protect forests and rivers. - - Use exercise books sparingly, don't just throw away the white paper, make full use of the blank space of the paper.
-- Used side of the paper can be turned over to make draft paper, note paper or homemade notebook use; expired calendar paper can be used to wrap the book cover. --Don't send a lot of greeting cards during New Year's because trees have to be cut down to make beautiful greeting cards, and 4,000 cards will sacrifice a big tree, which will damage the environment.
--Support the "Reduce Cards, Save Trees" campaign by college students to save money on greeting cards and plant trees to protect nature. Suggestion: Actively promote the use of recycled paper and recycled paper products.
You can also use waste paper to make your own New Year's cards, which is both chic and meaningful. The soaring demand for pulp is one of the reasons for the increase in wood consumption.
The country's annual paper consumption of 10 million cubic meters of wood, more than 1.3 million tons of imported wood pulp, imported more than 4 million tons of paper, which has to cut down how many trees ah! The massive consumption of paper not only caused by deforestation, but also due to the production of pulp emissions of sewage so that rivers and lakes are seriously polluted (pollution caused by the paper industry accounted for more than 30% of the pollution of the entire waters). What kind of recycled paper products have you used? Have you ever seen business cards or books made from recycled paper? Recycled paper is paper that has been reconstituted from waste paper.
In many countries, it has become fashionable to use recycled paper, and people are proud to present business cards with "made from recycled paper" on them to show that they are environmentally conscious and civilized. A lot of companies also stipulate the use of recycled paper as office supplies.
The United States has a requirement that 60% of the paper used by *** organizations must be recycled paper.
According to statistics, China's forests have plummeted by 23% during the last decade, and the volume of harvestable reserves has been reduced by 50%. The natural forests of Xishuangbanna in Yunnan have been disappearing at a rate of about 16,000 hectares per year since the 1950s.
What was then 55% of the original forest cover has now been halved. The Japanese, with their many rituals, have also been changing their habit of giving New Year's cards in large numbers in recent years.
Some large companies have advertised that they will no longer send New Year's cards in the mail. College students in China have organized a campaign called "Reduce Cards, Save Trees", which advocates saving the money spent on greeting cards to plant trees and protect nature.
-- The used side of the paper can be turned over to make draft paper, note paper, or homemade notebooks; expired calendars can be wrapped in book covers. --Refuse to accept those useless propaganda papers distributed everywhere, the manufacture of these propaganda materials will not only be a large waste of paper, but also because of the distribution and posting everywhere to destroy the city's hygiene.
Activity Objectives 1, Attitude, Emotion, Values To make students realize the impact of wasting paper on the environment and resources, take the initiative to take measures to conserve paper, and take responsibility for protecting the environment. 2、Methodology and process Organize students to investigate the amount of paper used, cultivate the awareness of saving paper, collect information on the history of papermaking and the relationship between it and the environment, visit the staff of the recycled paper factory, and design a plan for saving paper and recycling of wasted paper according to the information collected.
3. Knowledge and Ability To make students aware of the consumption of forest resources by a large amount of paper making, the pollution of the environment by small paper factories, and the importance of the method of making recycled paper and the importance of saving paper and using recycled paper to protect the environment. Activity Background China's annual paper consumption of more than l billion tons, requiring a large number of raw materials for paper making - pulp.
Pulp mainly comes from wood and recycled waste paper. At present, China's forest coverage is only 13.92%, for paper production of forest resources are very short.
In recent years, on the one hand, China spends a lot of foreign exchange every year to import paper, paper plate and do paper raw materials, on the other hand, the domestic waste paper is due to the acquisition of low prices and cause serious waste. Waste paper is the preferred raw material for paper making.
According to experts, the use of waste paper than with wood paper, not only can reduce environmental pollution, but also save resources, energy. In foreign countries, forest-rich countries attach great importance to waste paper recycling, such as Japan, the forest cover is much higher than our country, the amount of waste paper recycling is as much as 100 million tons, equivalent to the total amount of paper in our country each year.
In 1998, the Yangtze River basin and the Northeast suffered huge floods, and the indiscriminate cutting of forests, do not pay attention to the protection of forest resources has a lot to do. The people concerned emphasized that with the reduction of raw materials for paper - logs, from the point of view of environmental protection and resource reuse, the recycling of waste paper should pay more attention to enough.
Paper is a daily necessity for students, guiding students to pay attention to the problems in the use and recycling of paper can enable students to set up a small thing to start from their own start to protect the environment awareness. Activity Process The whole activity*** is completed in 3 class hours.
Lesson 1: Guide students to discuss the topic of paper: what do you know about paper? What else do you want to know about paper? Through this activity, the students take the initiative to pay attention to the actual use of paper in life, put forward questions about paper, and on this basis to choose and determine their own research sub-topics, set up a research group, and formulate a research plan. Lesson 2: Students carry out research and practical activities according to the plan.
Lesson 3: Presentation and exchange of the results of the preliminary research, and in-depth research and exploration, and finally complete the activities of reflection and evaluation. Student activities Teacher guidance Part I: Basic activities Lesson 1: Starting from observing the waste paper recycling signs, focusing on the "paper" problem, and begin to think about the paper.
5. Please tell me some general knowledge about the classification of paper and the basic types
There are many types of paper, according to its use and quality characteristics can be divided into six categories of cultural paper, industrial paper, packaging paper, household paper, information paper and special paper, briefly described as follows: Cultural paper: information transfer, cultural heritage used, so there is a close relationship with the printing industry, common cultural paper, such as coated paper, light coated paper, paper, paper, paper, paper, paper, paper, paper, paper and paper. Such as coated paper, light coated paper, Dowling paper, newsprint, Bible paper.
And so on. Industrial paper: used to make cardboard boxes, paper boxes, paper cups, paper plates and other paper or cardboard, because of the need to be added to the operation, so it is called industrial paper, common industrial paper, such as kraft paperboard, corrugated cardboard, coated white paperboard, gray paperboard.
And so on. Packaging paper: the manufacture of paper bags, shopping bags, paper bags of paper, common packaging paper such as cellophane, wrapping paper, bags with kraft paper.
etc. Household paper: paper related to health care or home life, such as toilet paper, facial tissue, diapers, napkins, paper towels, medical paper.
etc. Information paper: Japan called intelligence paper, due to office automation and the rise of computerized lists, it is the recent rapid development of paper, such as non-carbon copy paper, photocopy paper, computer report paper, heat-sensitive record paper (such as fax paper), static electricity record paper.... . etc.
Special paper: for special purposes and the manufacture of paper, such as cotton paper, rice paper, oil-proof paper, rust-proof paper, banknote paper. etc.
◎ Cultural paper: coated paper, Dowling paper, molded paper, certificate roll paper, book printing paper, drawing paper, poster paper, typing paper, Bible paper, postal paper, cigarette paper, Gramercy paper, newsprint and so on. First, coated paper - the surface of the original paper coated by coating and drying after calendaring of coated processed paper, its grade can be divided into the following categories: (1) super coated paper (A0): the highest level of coated paper by two to three times, the total amount of coated paper on each side of more than 25g/m2, gloss of more than 80 degrees, the surface of the paper is extremely detailed and smooth, print pattern is very clear, bright, suitable for high-level picture albums, high-price products, line catalog, important documents and other quality requirements are very high. It is suitable for high-grade albums, high unit price product catalogs, important documents and other printed materials with very high quality requirements.
(2) Premium coated paper (A1): In accordance with the general classification standards of the Japanese paper industry, each side of the coated amount of about 20g/m2 of high-grade coated paper, the paper surface is smooth and meticulous, with superior printability. (3) Copperplate paper (A2): divided into single-sided and double-sided coated coated paper, according to the Japanese paper industry classification standards for each side of the coated amount of about 10g/m2 or more, for the current culture and publishing, advertising design, printing and binding, and industrial and commercial sectors, one of the most commonly used types of paper.
(4) Lightweight coated paper (A3): According to the Japanese paper industry classification standards, each side of the coated amount of about 7-10g/m2 of coated paper. (5) Blunt coated coated paper: The coated and calendered coated paper with a gloss level of about 20~40, with a high printing gloss.
(6) snow-surface coated paper: gloss in the 20 degrees below the powder coated calendered coated paper, paper quality is fine and soft, non-reflective and does not hurt the eyesight. (7) Micro-coated paper: pigment coated and calendered to improve the uniformity and smoothness of the paper surface, and to improve the paper's ink holding properties.
(8) Booklet paper: Coated directly on the paper machine for booklet printing, suitable for color, overlay, and monochrome printing. (9) Magazine paper: Lightly coated and calendered book printing paper is the most commonly used paper for magazines.
Second, the Dowling paper: chemical pulp copied into the printing and writing paper, is currently the cultural publishing, printing and binding one of the most commonly used paper, such as the company's production of Dowling paper, the addition of dyes to present different paper colors, such as blue and white Dowling paper and beige Dowling paper. Third, mold paper: chemical pulp and part of the mechanical pulp copied into the printing and writing paper, paper quality is slightly worse than the Dowling paper, slightly yellow color, good toughness, tensile strength and cheap, the use of quite common.
Fourth, lamination paper: Dowlin paper class, toughness, surface roughness, to enhance the penetration of the film and adhesion with waterproof and moisture-proof role, the company also produces lamination paper and yellow lamination paper. Fifth, book printing paper: specifically for the printing of books of the molded paper, because of the consideration of eye protection, the paper is more with light beige, characteristics and general molded paper is more or less the same.
Six, drawing paper: paper color slightly creamy, does not hurt the eyes, strong brevet, wipe-resistant, non-linting, strong water absorption and color development. The paper can be used for the high-level writing of valuable certificates and high-level documents, letters, and so on.
Eight, poster paper: thin pound monolithic paper, suitable for posters, banners, calendars, ten lines of paper. Typewriting paper: advanced thin paper for typing and rewriting, suitable for statements, summonses and letterheads.
X. Bible paper: contains a large number of titanium dioxide filler, lightweight paper, high opacity, specifically for the printing of the Bible, dictionaries or aviation express. XI, postal cover paper: paperwork rewriting and stamps packaged with a single-sided glossy paper, paper quality is extremely strong bremsstrahlung, single-sided with a strong luster.
XII, cigarette paper: contains a large number of calcium carbonate filler, so that when the paper burns due to the decomposition of calcium carbonate carbon dioxide and has a buffer effect, does not lead to excessive combustion. Thirteen, Gracen paper: highly pulped by a strong pressure calender to deal with the paper, used in packaging, photo albums, stamp albums and other separators.
Fourteen, newsprint: the main raw material for grinding wood pulp, whiteness requirements in 55% GE above, and need to have the appropriate degree of oil permeability.
A facial tissue: make-up and cleaning with thin paper, its raw materials are mostly bleached chemical pulp and screw haunting pulp, and processed into a wrinkled shape and its characteristics are not easy to tear, rich in softness, not easy to lint, with humidity resistance, and can not contain migratory fluorescent agent. Second, napkins: meal instead of napkins used in paper, generally 100% virgin chemical pulp or mixed with part of the virgin mechanical wood pulp, the same shall not contain transferable fluorescent agent.
Third, the kitchen paper towels: the use of bleached chemical pulp to add wet strong agent made of wrinkled paper, instead of hand towels in the kitchen wipe with. Toilet paper: With moderate softness, easy to absorb the toilet paper, the product can be divided into wrinkled toilet paper, patterned toilet paper according to the surface state, and according to the shape of the structure can be divided into roll type (including single layer and double layer) and flat type (including folding and continuous extraction), the so-called roll that every certain distance to play a row of axial parallel with the axis of the scroll of the small holes, so that the paper can be easily torn off from the roll of paper.
Fifth, sanitary pads: generally by the cloaking body, absorbent and leakage body is composed of. The texture is required to be soft and neutral, no stains, impurities and pulp hard lumps, and its appearance should be no shedding, fracture and broken holes and other phenomena.
◎ Industrial paper products: First, the cowhide laminated paperboard (Liner board.)
6. Seek a tip on the paper
Tell you what are the tips for simple detection of paper!
Single paper inspection
Take a piece of paper from the pile, touch the surface with your hand or look at the paper, check the surface of the paper flat and even and the degree of cleanliness. General
In general
, the paper surface should be smooth service without marks, no lumps, while the paper surface should not be dark, reflective spots, or with the paper color inconsistent with the dust and so on.
Lift the paper into the light to observe, check the uniformity of the paper. The paper should not be dark and light, varying degrees of translucent or transparent points when observed in the light. If the paper appears to be a large area of uneven cloudy spots, it shows that the uniformity of the paper is very poor, will seriously affect the quality of the print.
7. What is the basic knowledge about paper
1, our office is commonly used A4 paper, A4 paper is our country according to the size of the international paper size and the development of the standard size of paper. In this standard, A4 paper is A series of full-open paper 16 open paper.
Its size is 210*297 millimeters.
2. What kinds of paper specifications? Commonly used paper has a large degree and positive degree of two specifications.
3, what is called the big degree of paper? Specification 889 * 1193 (mm) for the large degree of paper.
4, what is called positive degree of paper? Specification 787 * 1092 (mm) for the positive degree of paper.
5, the measurement of paper. The unit of measurement of paper order or roll. The whole paper rolled into a tube called roll paper, usually a roll is equivalent to about 10 orders, a order is usually 500 sheets of paper. The thickness of the paper is measured in grams, grams indicate the weight of a paper per square meter.
8. Please tell me some common sense and basic types of paper classification
coated paper: coated on one side and both sides of coated paper, according to the Japanese paper industry classification standards for each side of the coated amount of about 10g/m2 or more, for the current culture and publishing, advertising and design, printing and bookbinding, and one of the most commonly used in industrial and commercial paper;
light coated paper: coated with pigments and calendered to improve the uniformity of the paper surface and enhance the smoothness of the paper;
light coated paper: pigmented and calendered to improve the uniformity of the paper surface and enhance the smoothness of the paper.
Lightly coated paper: coated with pigment and calendered to improve the uniformity and smoothness of the paper surface and to improve the paper's ink holding properties;
Dowling paper - chemical pulp copied into printing and writing paper, which is one of the most commonly used grades in the cultural publishing and printing and bookbinding industries;
Biblical paper - contains a large number of titanium dioxide fillers, lightweight, high opacity paper, designed for printing Bibles, dictionaries, or aviation expresses.
Difference:
Copperplate paper: smooth, bright, absorbent ink uniformity, good gloss, high opacity, after color printing, the pattern effect of bright color levels of performance, suitable for color prints;
Dowling paper: the surface of the uncoated pulp, gloss and smoothness compared to the coated paper to be a little worse;
Lightly coated paper: that is, a low-quantitative coated paper, between the coated paper and offset paper. Between coated paper and offset paper, its color printing effect can be comparable to coated paper, and has a good opacity and smoothness. Durability is small, so it is more suitable for printing does not need to be preserved for a long time;
Bible paper: paper light, very thin, so thousands of pages of paper put together only the thickness of the average book, the paper is very slippery, smoother than the average paper, not rough.