Does anyone know how to make kraft pulp from cowhide?

Paper was invented by our venerable ancestor Cai Lun.

In ancient times, democracy was recorded by knotting ropes, and later, characters were gradually invented, and Oracle Bone Inscriptions was used as writing materials. Later, bamboo and wood fragments and silk were discovered and used as writing materials. But because silk is too expensive and bamboo chips are too heavy, paper was invented.

According to textual research, the production of paper began in the Western Han Dynasty, and it was widely circulated in the Wei, Jin, Southern and Northern Dynasties. Because of its wide use, papermaking has been further improved. Paper raw materials are also diversified. There are many kinds of paper, such as bamboo curtain paper, rattan paper, fish egg paper, etc ... Cai Lun has a wide range of papermaking raw materials. Paper made of rotten fishing nets is called net paper, and paper made of rags is called cloth paper.

During the Sui and Tang Dynasties, the famous Xuan paper was born. There is a legend in Xuanzhou, Anhui Province, the main producing area of Xuan paper: Cai Lun's apprentice Kong Dan, who made paper in southern Anhui Province, always wanted to make a particularly ideal white paper for his master to paint and compose. But after many experiments, it can't be realized. Once, he happened to see some sandalwood trees lying beside the mountain stream, which had been corroded by water for a long time and had rotted and turned white. Later, he made paper with this bark and finally succeeded. It can be concluded that using bark as rice paper has been very popular in the Tang Dynasty. )

On the basis of the previous generation of yellow paper dyed in the Tang Dynasty, wax was evenly coated on the paper to make the paper have the advantages of luster, luster and beauty, which is called hard yellow paper. The paper industry of the Five Dynasties continued to develop. Zhangzhou's Chengxin Tang paper was always considered as the best paper until the Northern Song Dynasty. During the Ming and Qing Dynasties, the paper industry flourished and innovated constantly. All kinds of stationery are popular again, and white paper and elegant paper are highly respected in texture, with bright and quiet colors, such as pastel paper and printing and dyeing paper in Kanggan period. By the Qing Dynasty, the production of paper had reached a perfect level. The process of making paper)

The production of general printing paper is divided into two basic processes: pulping and papermaking. Pulping is to dissociate plant fiber raw materials into natural pulp or bleached pulp by mechanical method, chemical method or a combination of the two. Papermaking is to combine pulp fibers suspended in water into sheets that meet various requirements through various processes.

Paper mills generally need to store enough raw materials for 4 ~ 6 months, so that the raw materials can naturally ferment during storage, which is beneficial to pulping and ensures the continuous production of paper mills. Raw materials such as reed, wheat straw and wood are cut into pieces (used to produce chemical pulp) or wood chips (used to produce ground wood pulp) in the material preparation section, and then small pieces of raw materials are put into a digester, added with chemical liquid, and steamed with steam to make the raw materials into pulp, or the wood chips are sent to a wood mill to be ground, or they can be ground after a certain degree of cooking. Then wash the pulp with plenty of clean water, and remove coarse chips, knots, stones and sand from the pulp through screening and purification. According to the requirements of paper types, the pulp is bleached to the required whiteness with bleaching agent, and then beaten with beating equipment. Then various auxiliary materials, such as fillers, sizing agents, sizing agents, etc., are added to the pulp, and then purified and screened. Finally, the paper pulp is sent to a paper machine, filtered for moisture in the wire section, squeezed and dehydrated, dried in a dryer, calendered and coiled, and then cut, rewound or cut to produce rolled paper and plain paper. If the production is to produce coated printing paper, it needs to be dried in the middle or produced into roll paper and then coated.

In addition to the above-mentioned basic procedures, it also includes some auxiliary procedures, such as the preparation of cooking liquid, the preparation of bleaching liquid, the boiling of rubber compound, the recovery of chemical substances and heat energy in cooking waste liquid and waste gas, etc.

Baqiao Paper:

1957, the ancient paper of the Western Han Dynasty in the 2nd century BC was unearthed in Baqiao, the eastern suburb of Xi. When it was unearthed, it was a pile of large and small pieces of paper. The largest is10×10cm, and the smallest is 3× 4cm, beige. After repeated scientific experiments, it is found that it is mainly made of hemp and a small amount of ramie fiber, that is, "plant fiber paper". This ancient tomb is no later than the era of Emperor Wu of the Han Dynasty, that is, 140 to 87 years ago. Therefore, it can be concluded that plant fiber paper was produced and used in China more than 2000 years ago, that is, in the 2nd century BC. This Baqiao paper is the earliest paper in the world excavated by archaeology.

Cai Lun's thesis:

Cai Lun, the inventor of papermaking in Han Dynasty, is awe-inspiring. Guiyang (now Chenzhou City, Hunan Province) people. In the 18th year of Ming Di Yongping (75), he entered the palace as an official. In the first year of Zhanghe in the Eastern Han Dynasty (87), he was appointed. In the first year of Yuanxing (105), papermaking was invented. Summing up the experience of predecessors, he began to make paper from bark, hemp head, rags, old fishing nets and other raw materials through beating, mashing, papermaking, baking and other processes. It was called "Cai Hou Paper", which made great contributions to the reform and popularization of papermaking and was later passed down as the inventor of papermaking. Papermaking is one of the four great inventions in ancient China, which has made great contributions to the spread and development of world culture.

Zuo Bo paper:

After Cai Lun, others constantly improved his methods. About eighty years after Cai Lun's death (at the end of the Eastern Han Dynasty), another paper expert named Zuo Bo appeared. The paper he made is even in thickness, delicate in texture and bright in color. At that time, people called this kind of paper "Zuo Bo paper". Unfortunately, the raw materials and manufacturing methods used in Zuo Bo are not recorded in history.

Rattan paper:

During the Wei, Jin, Southern and Northern Dynasties, paper was widely spread and used, and papermaking was further improved. Before the Jin Dynasty, the paper-making area was concentrated in Luoyang, Henan Province, and gradually spread to Vietnam, Sichuan, Shao, Yang, Anhui, Jiangxi and other places, with increasing output and quality. Paper-making raw materials are also diversified, and there are many names of paper. Tunxi has rattan paper with rattan skin as raw material. The paper is smooth and white as jade, leaving no ink marks.

Attachment: the history of paper

Paper is one of the four great scientific and technological inventions in ancient China. Together with the compass, gunpowder and printing, it provided a material and technical foundation for the prosperity of ancient culture in China. The invention of paper ended the complicated history of ancient bamboo slips and greatly promoted the spread and development of culture.

In ancient times, democracy was recorded by knotting ropes, and later, characters were gradually invented, and Oracle Bone Inscriptions was used as writing materials. Later, bamboo and wood chips (bamboo slips) and silk were found and used as writing materials. But paper was invented because silk was too expensive and bamboo was too heavy. According to research, the production of paper began in the Western Han Dynasty. From 65438 to 0957, Shaanxi Provincial Museum excavated a batch of artifacts named "Baqiao Paper" from a Western Han Dynasty tomb near Baqiao in the eastern suburb of xi, and its production date should be no later than the era of Emperor Wu of the Western Han Dynasty. Later, paper fragments of the Han Dynasty were unearthed in Luobnuoer, Xinjiang, Juyan, Gansu and other places, about 150 to 200 years earlier than the paper made by eunuch Cai Lun from the early Eastern Han Dynasty to Yuanxing. However, we should also see that although paper was invented long ago, it was not widely used at first, and government documents were still written in bamboo slips and silk books. In Xian Di, Zuo Bo, a native of Donglai, improved the previous paper-making method and further improved the paper quality. The paper he made is white, delicate, soft, uniform and bright, and the paper quality is particularly good. Known as "Zuo Bo paper" in the world, especially five-color stationery paper and high-grade stationery.

During the Wei, Jin, Southern and Northern Dynasties, paper was widely spread and used, and papermaking was further improved. Before the Jin Dynasty, the paper-making area was concentrated in Luoyang, Henan Province, and gradually spread to Vietnam, Sichuan, Shao, Yang, Anhui, Jiangxi and other places, with increasing output and quality. Paper-making raw materials are also diversified, and there are many names of paper. Such as bamboo curtain paper, the paper has obvious lines, and its paper is tight, thin and even. Tunxi has rattan paper with rattan skin as raw material. The paper is smooth and white as jade, leaving no ink marks. Dongyang has fish egg paper, also known as fish note, which is soft and smooth. Jiangnan uses straw and wheat straw fiber to make paper, which is yellow and rough and difficult to write. In the north, mulberry bark fiber is used to make paper, which has excellent texture, white color, light softness and strong tensile force, and the paper grain tears like cotton silk, so it is called cotton paper. Cai Lun has a wide range of papermaking raw materials. Paper made of rotten fishing nets is called net paper, and paper made of rags is called cloth paper. At that time, fishing nets and rags were classified as hemp fibers, so they were collectively called hemp paper.

In order to prolong the life of paper, the Jin Dynasty has invented a new technology of dyeing paper, that is, impregnating paper with yellow tiller boiling juice, some of which are written first and then dyed, and some are dyed first and then written. Impregnated paper is called dyed yellow paper, which is natural yellow, so it is also called jute paper. Yellow paper has the function of killing insects and moth.

During the Sui and Tang Dynasties, the famous Xuan paper was born. There is a legend in Xuanzhou, Anhui Province, the main producing area of Xuan paper: Cai Lun's apprentice Kong Dan, who made paper in southern Anhui, always wanted to make a particularly ideal white paper for his master to paint and trim the score. But after many experiments, it can't be realized. Once, he happened to see some sandalwood trees lying beside the mountain stream, which had been corroded by water for a long time and had rotted and turned white. Later, he made paper with this bark and finally succeeded. It can be concluded that using bark as rice paper has been very popular in the Tang Dynasty. Hard yellow paper used to write classics in the Tang Dynasty, Cheng Xin Tang paper in the Five Dynasties and the Northern Song Dynasty, etc. All belong to the category of cooked rice paper. Since then, Xuan paper has been an indispensable treasure for writing and painting. After the Ming and Qing Dynasties, almost all the paintings and calligraphy in China were made of rice paper.

At the same time, the invention of engraving brush greatly stimulated the development of paper industry, and the papermaking area was further expanded, and famous papers appeared one after another, such as yellow and white linen paper in Yizhou, rattan paper in Hangzhou, Wuzhou, Quzhou and Yuezhou, large paper in Zhou Jun, thin paper and white paper in Zhou Pu, Xuan paper in Xuanzhou, hard yellow paper and bamboo paper in Shaozhou, and slip paper in Linzhou. In the Tang Dynasty, bast fibers such as Daphne bark, Broussonetia papyrifera bark, mulberry bark, rattan bark, hibiscus bark and Pteroceltis tatarinowii bark were used as raw materials for papermaking. This kind of paper is flexible and thin, and the fibers are evenly staggered.

On the basis of the yellow paper dyed in the previous generation in the Tang Dynasty, the paper was coated with wax evenly. After calendering, the paper had the advantages of luster, luster and beauty, so it was called hard yellow paper. There is also a kind of hard white paper, which is called hard white paper, which is coated with wax on the front and back sides of the original paper, and then rubbed with pebbles or arc stones to make the paper bright, smooth and dense, and the fibers are even and meticulous, which is slightly thicker than hard yellow paper. In addition, politicians have added mineral powder and wax paper; On the basis of powder wax paper and colored paper, paper products with gold and silver foil or powder luster are called golden flower paper, silver flower paper or honeysuckle paper, also called cold gold paper or sprinkled gold and silver paper; There is also that kind of paper with exquisite colors and patterns, which is polished and pressed one by one on the pattern board engraved with calligraphy and painting, so that various patterns are hidden on the paper, also called flower curtain paper or pattern paper. At that time, caviar paper made in Sichuan was very popular among scholars. In addition, there have been papers that have undergone simple reprocessing, such as Xue Tao's stationery, Xie Gong's 10-color stationery and other dyed papers, Jin Sushan's warp paper, and various printed papers, pine paper, variegated quicksand paper, rosy clouds paper, gold powder paper and dragon paper.

The paper industry of the Five Dynasties continued to develop. Zhangzhou's Chengxin Tang paper was always considered as the best paper until the Northern Song Dynasty. This kind of paper is "as smooth as spring water, as thin as cocoon, as tough as Sichuan sound and as crisp as a brush". This paper can be as long as 50 feet and as thin as a tail. It inherited the papermaking tradition of Song Dynasty, Tang Dynasty and Five Dynasties, and many papers with different textures appeared. Paper is generally light, soft, thin and tough. First-class paper is all produced in Jiangnan, also known as Jiangdong paper. The reuse of paper began in the Southern Song Dynasty, and the New Testament was reconstructed from waste paper, called rejuvenation paper or mature rejuvenation paper. It has the characteristics of material saving, time saving and quick effect.

By the Yuan Dynasty, the paper industry was dying, and only the south of the Yangtze River barely maintained its former scene. It was not until the Ming Dynasty that the paper industry flourished again. The main famous products are Xuan paper, bamboo paper, Xuande paper and Songjiang Tan paper. The manufacturing technology of Xuan paper in Qing Dynasty was further improved and became a well-known paper. Most of them use local papermaking raw materials, and all kinds of raw materials are used to make all kinds of paper. Paper processing technology has been further developed and innovated, such as sizing, alum addition, dyeing, waxing, calendering, gold scattering and printing. All kinds of stationery are popular again. White paper and elegant colored paper are highly respected in texture, and the colors are mainly bright and quiet. During the reign of Emperor Kangxi, there were pastel wax banknotes, such as those depicting gold and silver patterns, those depicting wax banknotes, those depicting multicolored calendered wax banknotes, and those depicting printed and printed flower banknotes, which were calendered on three-color paper with pastel wax and then painted with clay gold or clay silver. The production of letterhead paper has reached an exquisite level in the Qing Dynasty.

In addition, since the Jin Dynasty, the imperial court in China has accepted tribute paper from neighboring countries, such as South Vietnamese tissue paper (or moss paper), which is sweet, warm and non-toxic with seaweed as raw material. Korean tribute paper and chicken forest paper are loved by rulers of past dynasties. In the Qing Dynasty, there were North Korea's Lijin stationery, Jinling stationery, mirror stationery, bamboo green paper, Vietnamese moss stationery, Japanese snow paper, book paper, western Phnom Penh paper, mica paper, flower paper, all kinds of stationery and flower paper.

Paper, paperboard and processed paper. It is a sheet fiber product used for writing, recording, printing, painting or packaging. It is made of paper pulp suspended in water, deposited into interwoven fiber layers on the forming wire of paper machine, pressed and dried.

There are many kinds of classified papers and different classification methods. There are three ways to classify habits.

① According to the mode of production, it is divided into manual paper and machine-made paper. Hand-made paper is mainly made by manual operation, curtain netting and manual fishing. Soft texture, strong water absorption, suitable for ink writing, painting and printing, such as China Xuan paper. Its output accounts for a small proportion of the total modern paper output. Machine-made paper refers to the general name of paper produced by mechanization, such as printing paper and wrapping paper.

② According to the thickness and weight of paper, it can be divided into paper and cardboard. There is no strict difference between the two. Generally speaking, paper weighing less than 200g per square meter and cardboard weighing more than 200 g are called. Cardboard accounts for about 40 ~ 50% of the total paper output, and is mainly used for commodity packaging, such as box cardboard and packaging cardboard. In the world, paper and cardboard are usually calculated separately.

③ According to the use, it is divided into: newsprint, which is a kind of special printing paper mainly used for news publication, and is traditionally classified as a single category because of its large proportion; Printing paper and writing paper, used for printing and writing, including painting paper; Wrapping paper; Technical papers (industrial and agricultural technical papers); Toilet paper; Processing base paper to further manufacture and process paper; Cardboard; Processing paper, etc.

Specifications are generally divided into two types: flat plate and roller. Plain paper is mainly used one by one, such as printing, writing, painting and other paper. Web is mainly used in continuous processing machinery, such as rotary printing, continuous bag making by bag making machine, continuous cigarette making by cigarette making machine, etc.

The width of printing paper is generally required to match the printing machine series. In the past, the widths of drums were mainly 787 mm and 1092mm and their multiples. With the change of printing width, 880mm is gradually adopted as its multiple. The outer diameter of the web is generally 750 ~ 850 mm. The aspect ratio of plain paper is 0.72. It is customary to take 500 sheets as a ream, and several reams of paper are packed into one sheet, each weighing no more than 250kg. Other papers have different specifications and standards due to different use requirements, or are produced according to the special specifications required by customers.

Performance index: different kinds of paper need to have performance indexes suitable for their main uses. According to different uses, the following performances are tested by special instruments according to standards.

Physical performance index ① Quantification: weight per square meter, expressed in g/m2. For example, the basis weight of paper for cultural printing is generally 32 ~ 80g/m2, and that of paperboard is generally 200 ~ 400g/m2. ② Thickness: the thickness measured directly between two measuring plates under the pressure of 100kPa, in millimeters (mm) ... ③ Compactness: indicates the tightness of paper structure, and the weight of paper per cubic centimeter is expressed in g/cm3. The same amount of paper, the paper with large thickness is loose. ④ Porosity and air permeability: Generally, paper contains 70% porosity. Air permeability refers to the amount of air per minute or the time for a certain amount of air to penetrate a certain area of paper under a certain vacuum degree, which is expressed in ml/min or s/ 100ml respectively. ⑤ Shrinkage rate: the relative change of paper size after soaking in water or humidifying or dehumidifying at different temperatures, expressed as the percentage increase or decrease of the size relative to the original sample size. Offset printing paper requires higher expansion rate. ⑥ Strength: Some specific values reflected when the paper is subjected to external force and reaches the failure point. Mainly including tensile strength, elongation at break, bursting strength, folding endurance, tear strength and rigidity. Various strength indexes are particularly important for packaging paper.

Optical performance index ① Whiteness: The reflectivity of white or nearly white paper surface to blue light is expressed as a percentage relative to the reflectivity of standard magnesium oxide board. (2) Opacity: It is expressed as the percentage of the reflectivity of a single sample on a "completely absorbed" black pad and the reflectivity of several completely opaque samples. ③ Transparency: the degree to which light passes through the paper. It is expressed by the maximum number of layers of ink lines that the sample can see clearly. Optical performance index is very important for printing paper and tracing.

Chemical property index ① Moisture: The paper contains the weight of water that can evaporate at 100 ~ 105℃, expressed as a percentage of the paper weight. (2) Ash: the percentage of the weight of burnt paper residue in the weight of paper sample. (3) pH value: the pH value of the water extract of the paper sample after soaking in distilled water at 95 ~ 100℃ 1 hour. These chemical indicators are especially important for electrical and technical documents.

Surface properties ① Sizing degree (water resistance): The performance of paper surface to prevent ink penetration and diffusion during writing is very important for writing paper. Dip a duckbill pen in special ink and draw a line on the paper, which is expressed by the maximum width (mm) of the non-diffusion and non-permeability line. ② Smoothness: The time required for a certain volume of air to pass through the gap between the sample surface and the glass surface under a certain vacuum and pressure, expressed in seconds. ③ Surface strength: In order to prevent paper from falling off and pasting, offset printing paper requires good surface strength. The number of wax rod stages from pressing paper with wax rod to drawing fiber can also be expressed by measuring drawing speed with printing instrument. What drawing paper and tracing paper tested was its friction resistance, and it was a test of paper surface tissue bonding strength.

In addition to the above properties, there are many special performance testing requirements in other technical papers. For example, the dielectric constant, dielectric strength, dielectric loss, burning speed, thermal conductivity of thermal insulation paper, resistance coefficient of filter paper to fluid and rejection coefficient of filter material, softness and water absorption of toilet paper are all important performance indexes of quality, which need to be tested according to specified standards to evaluate its performance.

paper

wisdom

1. paper

Attachment: Names of several papers:

pressure-sensitive paper

Asphalt kraft paper

Paraffin paper

Polyethylene coated paper

Irregular polypropylene moisture-proof kraft paper tactics polypropylene coated moisture-proof kraft paper

Cellophane (recycled cellophane film)

Polyethylene processing cellophane Polyethylene extrusion coated cellophane

Vinylidene chloride treated paper

Pressure-sensitive adhesive paper for printing

paper string

Paper tape (for packaging) Adhesive tape (for packaging)

kraft bag

Kraft paper bags for cement packaging.

Extensible kraft paper bag

Aluminum foil waterproof wrapping paper aluminum foil composite wrapping paper

Fiber-reinforced kraft paper bag reinforced with optical fiber

Woven bag

A sack in a sack

Kraft paper lining, synthetic resin bag kraft paper lining, synthetic resin woven bag

Kraft paper bag for sweet potato starch packaging

Kraft paper bag for potato starch packaging

Volatile corrosion inhibitor for volatile anticorrosive paper

Paper size The cutting size of paper.

abrasive paper

Grinding base paper

absorbent paper

Absorbent paper

Account paper

Computer paper accounting machine paper

acid free paper

acid resistant paper

Acoustic paper

Silver bromide printing paper

Absorbent paper active paper

Computer paper feeder

Address label paper

Sticky paper

Advertising paper

Imitation marble paper agate paper

Agate marble paper imitation agate marble paper

Antiaging paper

Air stationery air paper

Business card paper alabaster paper

Album paper alabaster paper

Protein paper

Albumin paper

Map paper alignment paper

Alkali-resistant paper

Cotton fiber paper full rag paper

All-wood paper

Imitation papermaking

Spanish straw pulp printing paper alpha printing paper

Aluminium paper

Aluminum casting paper

Aluminized paper

Aluminium powder paper

aluminum foil backing paper

Aluminum laminated paper

Amber striped paper

Ammunition paper

Frequency induction recording paper amplitude response recording paper

Analytical filter paper for analytical chemistry

Inclined paper angle paper

Corner cutting paper

Corner paper

Animal barrel paper for animal glue surface

acid resistant paper

Acid-resistant Manila paper

Anticorrosive paper

anti falsification paper

mildew proof paper

anti rust paper

Rustproof base paper

anti rust paper

Antique paper

Antique book paper

Antibacterial paper

Light-proof paper

Watercolor paper

Archive paper

Armature paper

Aromatic paper

Arsenic paper

Art paper

Art cover paper

Watercolor Paper Art drawing paper

Art sea newspaper

Dental paper

Dental paper

artificial leather paper

glassine

asbestos paper

Asbestos (electrical) insulating paper

Disinfecting paper

ashless paper

quantitative analysis filter paper

moisture-proof paper

Asphalt base paper

Asthma paper

map paper

Color printing paper

Pressure sensitive copy paper automatic copy paper

Autographed paper

Automatic (cross) recording paper

Automatic transfer paper

Automobile bag paper

copy paper

food wrapping paper

Blue striped writing paper

Book backing paper

Paper backing paper

Bacon wrapping paper bacon paper

Bag paper

Bagasse pulp paper

Impregnated insulating paper bakelite paper

Impregnated insulating paper baking paper

Bread paper

Laminated balance sheet paper

Single-sided asphalt wrapping paper packaging paper

Balloon paper

Balston's paper

paper made from young bamboo

Bandage paper

Advanced writing paper bank paper

banknote paper

Banquet table covering paper

Barber's headrest paper

Permeability resistant paper

Barium coated paper

body paper

(medicine roll) backing paper containing medicinal paper

Bast paper

Advanced stationery bath paper

Wax paper decorative paper

Battery paper

Wax paper decorative paper

Zigzag paperboard

Bed wrapping paper

Beer filter paper

Sandwich paper

Biblical paper

absorbent paper

Bill paper

Glossy advertising paper billboard paper

Automatic recording paper accounting machine paper

Binding paper

Biological paper

Cookie wrapping paper cookie paper

Cookie wrapping paper cookie wrapping paper

Crayon drawing paper

bituminised paper

Album black album paper

waterproof paper

Air-proof paper shading paper

Scraper coated paper

Blank book paper

Blanket bag paper

blank sheet of paper

Ammunition paper, miner's paper, blasting paper

Anti-cracking paper

Fresh meat packing paper anti-drop paper

Blotting paper

Blue candle wrapping paper

Blue printing paper

Print blue drawings

Blue tracing paper

Leaflet paper

Single-sided glossy paper

Spool paper

Base paper

Coated base paper

Imitation papermaking

bond paper

Book paper

Registration paper

Bottle label paper

Bowl paper for calendering roller

Carton cover paper

Boxed writing paper

Braille printing paper

Bread bag paper

Bread label paper

glossy paper

Brocade paper

Booklet paper

shredded paper

sensitive paper

Golden crepe paper

Golden paper bronze paper

Brown printing paper

Brush roller coated paper brush (coated) paper

Brush kraft paper on plant seedlings

Foam coated paper

Light yellow copy paper

grinding paper

Dark drawing paper light yellow drawing paper

Building paper

Expanded (book) paper

Fluffy paper

Dyed paper short paper

Lined burlap paper, woven paper

High gloss paper

Dyed paper

Meat wrapped paper butcher paper

Butter wrapping paper

Cable paper

Furry wallpaper

Cake wrapping paper cake wrapping paper

Calendar paper

Calendered bowl paper

Calendered paper

Imitation leather paper small kraft paper

Woven paper printing paper

Woven paper

Bible paper Cambridge Bible paper

Gemstone pattern coated paper embossed paper

Candle wrapping paper

Candy bag paper

Cloth writing paper canvas note paper

Glossy paper hat paper

Capacitor paper (thin paper)

Plant protection paper

Truck coated paper

Sugar wrapping paper caramel paper

Carbonized paper

carbon paper

Carbon paper

Carbon base paper

Carbonized paper base paper

Pressure-sensitive carbonless copy paper

Polishing paper emery paper

carton paper

Polar coordinate recording paper

Carpet lining paper

Trunk paper for trunk ceiling

Map paper, card paper, recording paper

Electrocardiogram recording paper

Carton lining paper

Bullet paper, ammunition paper, shell paper.

Carton label paper

Transport packaging carton lining paper

Cash receipts and payments recording paper cash control tape paper

Bill paper registration paper (cash receipts and payments)

Transport wrapping paper

Canvas box lining paper

High gloss printing paper, coated paper

Cast paper (for plastic film)

Catalogue paper

Cover paper, cardboard, drawing paper.

Loose oil paper

Celery bleaching paper

Celluloid paper

cement sack paper

Ceramic decal ceramic transfer paper

Grain box liner paper

Chalk transfer paper

Office paper

Charcoal writing paper

Charcoal paper

Recording paper

cheque paper

Paper made of chemical pulp

cheque paper

Handmade bamboo paper China paper

Die paper printed cotton paper