What are the types of copy paper? What are the types of paper

The types of copy paper can be divided into: coated paper, cardboard, board, corrugated paper, etc.

Coated paper, also known as printing coated paper, is made by coating a layer of white paste on the base paper and calendering. The surface of the paper is smooth, the whiteness is high, the elasticity is small, and the absorption and reception of ink are very good. It is mainly used for printing the covers and illustrations of high-end books and periodicals, color pictures, various exquisite commodity advertisements, samples, commodity packaging boxes, trademarks, etc.

Matte coated paper, less reflective compared to coated paper. The patterns printed with it are not as colorful as coated paper, but the patterns are more delicate and high-grade than coated paper. The printed graphics and pictures have a three-dimensional sense, so this coated paper can be widely used to print pictorials, advertisements, landscape paintings, exquisite wall calendars, character photography, etc.

Cardboard is an ideal material for making high-end packaging boxes, and its good hand feel, ideal color and dot transfer conditions, as well as stiffness and surface strength are all reasons for designers to choose. According to the requirements of different packaging boxes, designers can design and choose from various cardboards. (1) White cardboardThe characteristics of white cardboard are not only high whiteness, but also soft luster, elegant and noble, good dot transfer during printing, level and color restoration can reach a very high level, and the feel is delicate.

Designers often use white cardboard in high-end products such as gift boxes, cosmetic boxes, wine boxes, and tags. (2) Glass cardboardGlass cardboard is a kind of cardboard produced by vitrification on the surface of white cardboard, the surface gloss of this paper is very high, and the feel is smooth, its visual effect is higher than the gloss of cardboard and coated paper after UV varnishing, and the products made of this cardboard are very bright and eye-catching. Designers often use glass cardboard for packaging boxes for pharmaceuticals and high-end cosmetics.

Cardboard is a laminated paper with a quantitative weight of 220g m2, 240g m2, 250g m2 ......400g m2, 450g m2, wide range, the largest choice of various materials. This kind of paper has a certain stiffness and surface strength, especially because the coloring whiteboard paper has a surface coating, the printing ink is not easy to penetrate, the amount is less, and the color and dot transfer of the printed image are good. But the disadvantage is that the flatness is poor, and the printing speed is slow; Another disadvantage is that the feel is noticeably rough compared to jammed paper.

Corrugated cardboard is most commonly used in corrugated cardboard, the color of corrugated cardboard itself is quite dark, so when choosing the color of printing, we must take into account the choice of large color saturation and strong tinting strength ink (such as bright red), otherwise there will be a big gap between the color printed and the desired color. Ink viscosity is the main index that needs to be controlled in corrugated cardboard printing, and it is one of the main factors affecting the printing color condition. Corrugated cardboard is used in the display racks of various industries such as food, clothing, sporting goods, IT products, daily necessities, automotive supplies, books, etc.

The classification of copy paper is divided by size, and there are several criteria:

1. Type A; 2. Type B;

3. K-type, K-type paper is often said to be open paper, and only in China can it be used K-type paper. Nowadays, A-type paper is generally used.

Regardless of type A and type B, its classification is like this, for example, A5 is twice as much as A6, A4 is twice as much as A5, A3 is twice as much as A4, B4 is twice as much as B5, B3 is twice as much as B4, and the classification of type K is to divide a large 1k paper into two sheets as 2k, 2k paper into half as 4k, 4k as half as 8k, 8k as half as 16k, 16k as half as 32k, etc.

There is also special printing paper for office use.

The classification is divided by the size of the paper and the number of layers, such as 241-1 and 241-2, which represent 1 and 2 layers of narrow row printing paper, respectively, and of course 3 and 4 layers; Commonly used wide-line printing paper also includes 381-1, 381-2, etc.

There are also according to the thickness of the paper, such as 60g, 70g, 75g, 85g, 120g, etc., which refers to the weight of the paper per unit area, because the density of the paper is basically the same, the heavier the weight of the paper per unit area, the thicker the thickness of the paper. For example, the general speed printer uses about 40g of paper, and the all-in-one machine uses 50-60g of paper, and the photocopier uses 70-85g of paper, and the printer generally does not use less than 60g thick paper, otherwise it is easy to jam.

According to the conventional use, the paper can be roughly divided into six categories: household paper, printing paper, packaging paper, industrial paper, office and cultural paper, and special paper.

1. Tissue paper.

Including toilet paper, napkins, diapers, sanitary napkins, wet wipes, etc.

2. Printing paper.

Including coated paper, newsprint, writing paper, dictionary paper, Dowling paper, etc.

3. Wrapping paper.

Whiteboard paper, white cardboard, kraft paper, kraft paper, corrugated paper, containerboard, cigarette paper, moisture-proof paper, transparent paper, aluminum foil, trademark, label paper, fruit bag paper, etc.

4. Industrial paper.

Including release paper, carbon paper, insulating paper, filter paper, test paper, capacitance cover paper, pressure paper, dust-free paper, impregnated paper, sandpaper, anti-rust paper, etc.

5. Office and cultural paper.

Including tracing, drawing paper, copy paper, art paper, carbon paper, fax paper, printing paper, copy paper, photo paper, rice paper, thermal paper, etc.

6. Special paper.

Including tallow paper, steel ancient paper, Li ranhe, decorative base paper, water pattern paper, leather paper, gold and silver cardboard, pattern paper, anti-counterfeiting paper, etc.

Paper Introduction:

Paper, also known as matte felt paper, is made of raw materials containing plant fibers through pulping, modulation, copying, processing and other processes, and can be used for painting, printing books and newspapers, packaging, etc. Different from the glutinous material, the glutinous fiber is an animal fiber "silk", which can be arbitrarily folded into a sheet for writing.

Paper is the carrier of writing and printing, and can also be used as packaging, sanitation and other purposes, such as printing paper, carbon paper, toilet paper, tissue paper, etc., due to the invention and promotion of paper, so that human beings can no longer use mud, stone, wood, pottery, metal and other materials to record words or pictures, but also make a large amount of ancient information to be disseminated and preserved.

Generally, there are two types: flat plate and roll. Flat paper is mainly used for sheet by sheet, such as for platform printing machine printing and writing, painting and other paper, web paper is mainly used for continuous processing machinery, such as for rotary printing, bag making machine continuous bag making, cigarette machine continuous packaging cigarettes, etc.

The above content reference: Which Eye Encyclopedia - Paper.

1. Coated paper.

Pigments, adhesives and auxiliary materials are made into coatings, which are coated on the surface of cardboard by special equipment, and a smooth and dense coating is formed on the paper surface after drying and calendering, so as to obtain coated paper with good surface properties and printing performance. Mostly used for cigarette boxes, labels, cartons, etc.

2. Offset paper.

Mainly single-sided offset printing paper. The paper surface is white and smooth, but the whiteness, tightness and smoothness are lower than those of coated paper. Super calendered offset paper, its smoothness, tightness is better than ordinary calendered offset paper, printed text, pattern can be pasted with yellow board paper into a paper box.

3. Kraft paper.

Including containerboard, cement bag paper, high-strength corrugated paper, brown cardboard. Kraft paper is made of softwood sulfate natural color pulp with tough, strong and yellow-brown paper with high strength, which can be divided into single-sided light, double-sided light, striped, non-striped and other varieties from the appearance, and the quality requirements are slightly different.

Kraft paper is mainly used to make small paper bags, document bags and inner packaging of industrial products, textiles, and daily necessities. Kraft paper is divided into three grades: U, A, and B.

4. White cardboard.

It is a flat paper, which has a smooth surface and a firm texture. General use: single-layer cartons, paper cards, handbags, business cards, tags.

5. Corrugated paper.

Corrugated paper is pressed into a corrugated shape during the production process, and after being made into corrugated cardboard, it will provide the elasticity and flat compressive strength of the cardboard, and affect the properties such as vertical compressive strength. Corrugated paper, the paper surface is smooth, the thickness should be consistent, and there can be no wrinkles, tears and holes and other paper diseases, otherwise the broken end failure of the production process will be increased and the product quality will be affected.

Generally, there are two kinds of 70 grams and 80 grams, and 80 grams of paper is stiffer and more expensive.

Answer: According to the basic area of the paper format, the format specifications are divided into A series, B series and C series, and the format size of A0 is 841mm 1189mm, and the format area is 1 square meter; The format size of B0 is 1000mm 1414mm, and the format area is 2 square meters; The format size of C0 is 917mm 1279mm, and the format area is 2 square meters;

Only A series and B series are used in the format specifications of copy paper. If the A0 paper is split into two equal parts along the length, it becomes the A1 format, and if the A1 paper is split along the length, it becomes the A2 format, and so on to the A8 format; B8 paper is also folked to B8 size according to this method. The format sizes of A0 A8 and B0 B8 are shown in the table below.

Among them, 7 format specifications, such as A3, A4, A5, A6 and B4, B5 and B6, are commonly used for copy paper.

a4（16k）297mm×210mm；a5（32k）210mm× 148mm；a6（64k）144mm×105mm；a3（8k）420mm×297mm。

Hello! Copy paper, generally A3, A4, A5 is more common, the most common is A4 paper, that is, the most used model.

The sun rises in the east and rains in the west, and the road is sunny but sunny.

Basic information page, vaccination record page.

In daily work, copy paper is used most frequently, and the quality of copy paper grinding will directly affect the speed of work efficiency and the beauty of text shape. How to buy satisfactory office paper, it is necessary to understand the basic performance and related knowledge of copy paper.

When printing, the paper must pass through a precise paper path. So paper that is too light or too heavy may refuse to enter the printer. As a result, light or heavy sheets of paper are usually not suitable for most printers. It will lead to frequent paper blockages.

Most laser printers are designed to use paper that weighs approximately 70 to 90 grams per square meter, or 20 to 24 pounds in U S units. Some laser printers use 60 grams per square meter of paper, but this is the exception rather than the norm.