Printed books / printed books and periodicals / printing of books and periodicals

  Dahe printing is responsible for printing books and periodicals, printing teaching materials, teaching aids, printing training materials, printing online school materials, printing internal handouts, printing newspapers, school newspapers, printing counseling materials, printing picture books, publicity pages, printing magazines and periodicals&# 8203; Located in the third street of Zhengzhou National Economic and Technological Development Zone, it is a combination of printing centers, color printing plants and other printing enterprises affiliated to Henan Daily newspaper group, covering an area of 134 Mu and a plant area of 45000 M & sup2;, With assets of 420 million yuan, it is a comprehensive printing enterprise integrating prepress production, newspaper printing, commercial printing, post press processing and distribution services in the central and western regions
It can widely print books, periodicals, books, textbooks, teaching materials, newspapers, school newspapers, periodical teaching aids, picture books, magazines, examination papers, examination materials, packaging, learning materials, DM sheets Promotional color pages and other printed products

Paper selection:
1) Web paper
Web paper is a roll of paper used for rotary printing
Its width is generally a fixed size and its length can reach several kilometers
It can be transmitted continuously during printing
It is mainly suitable for printing newspapers, supermarket promotional posters and other printed materials with a large number of printing
Figure 1 shows the web

2) Flat paper
The paper cut into rectangle for sheet printing is flat paper
When printing, paper always goes in one by one and then comes out one by one
No matter how fast the process is, it is always one by one
This is called & ldquo; Sheet printing & rdquo;, This is the printing method adopted by most books, picture albums and posters
Figure 2 shows a pile of flat paper

art paper
Characteristics: coated paper, also known as printing coating paper, has smooth surface, high whiteness, uniform distribution of paper fibers, consistent thickness, small flexibility, good elasticity, strong water resistance and tensile resistance, and good absorption and reception of ink

Usage: mainly used for printing covers and illustrations, color pictures, various exquisite commodity advertisements, samples, commodity packaging, trademarks, etc
of high-grade books and periodicals

Gram weight: coated paper weighs 100, 157, 200, 250, 300, 400 and 450 grams

Dumb powder paper
Characteristics: matte paper, officially known as matte coated paper
When viewed in sunlight, it is less reflective than coated paper
Generally, dumb powder paper is thinner and whiter than copper plate, more inky, and more rigid
Unlike copper plate paper, it is easy to deform

Purpose: high-end product album, products showing elegant and simple style (such as instruments, calligraphy and painting, antiques, etc
) or magazines and collections with photos or illustrations, without paying attention to the bright effect

Gram weight: there are 105, 128, 157, 200, 250 and 300 grams of dumb powder paper

White cardboard
Characteristics: single layer or multi-layer combined paper completely made of bleached chemical pulping and fully sized, with a general ration of more than 150g / ㎡
This paper jam is characterized by high smoothness, good stiffness, neat appearance and good uniformity

Purpose: business card printing, certificate, invitation, cover, monthly calendar, postal postcard, etc

Gram weight: the gram weight of white card paper is 200, 250, 300, 350 and 400 grams, which are commonly used

Daolin paper
Features: & ldquo; Daolin paper & rdquo; The positive name should be & ldquo; Offset printing paper & rdquo; Or & ldquo; Offset paper;, Offset printing paper is a relatively advanced book printing paper, which has high requirements for the specific degree, expansion rate and surface strength during printing, and the acid-base property should also be close to neutral or weakly alkaline

Usage: suitable for printing single or multi-color book covers, text, inserts, pictorial, maps, posters, color trademarks and various packaging products

Gram weight: Doric paper weighs 70, 80, 100 and 120 grams, which are commonly used