Printing Knowledge

The sequence of steps in binding hardcover books is shown in Figure 6-1. These steps remain the same whether books are bound by hand or by machine. FOLDING SIGNATURES AND ENDSHEETS. Large printed sheets are first folded to form signatures. A signatur…

Name Thickness/mm Name Thickness/mm
80gsm art paper 0.065 105gsm matt coated paper 0.09
105gsm art paper 0.085 128gsm matt coated paper 0.12
128gsm art paper 0.105 157gsm matt coated paper 0.16
157gsm art paper 0.135 200gsm matt coated paper 0.19
200…

Perfect Binding Process Sewn Binding Process Perfect binding is often used, and gives a result similar to paperback books. National Geographic is one example of this type. Paperback or soft cover books are also normally bound using perfect binding. T…

Fold the impression (cut or uncut) into several folds according to page number and sequence. The fold with multi-pages is called a signature of book-block. After collocating the folded signatures into volumes by order and combine them, it is called s…

Quality and rather heavy two-side coated printing paper with smooth surface. The reproduction of fine screen single- and multicolor pictures ("art on paper") requires a paper that has an even, well closed surface and a uniform ink absorption.…

In print design, embossing and debossing (also known as relief or raised printing) are special techniques that can significantly enhance the tactile and visual quality of printed materials. However, many designers focus solely on the visual aspect of…

Problem Description:
Before baking, the printing plate appears clean with almost no stains. However, after baking, many small and irregular dirty spots appear. These spots are often invisible to the naked eye until the plate is mounted on the press a…

ncrease Precision During Linearization
When performing linearization, try setting a higher precision level. This helps achieve smoother gradients and reduces visible graininess in printed results.
Understand the Difference Between EFI and OEM Drivers…

1. Knockout
If blue text is placed on a yellow background, the area where the blue text appears must be left empty (knocked out) on the yellow plate. Likewise, the same area should be removed from the cyan/blue plate. Otherwise, the blue ink will be …

a. Be aware of highlight dropout.
b. Use complementary (opposite) colors carefully — it’s best to use only one complementary color if possible.
c. Ensure the total ink coverage does not exceed the paper’s ink absorption capacity.
Application of sp…

Trapping refers to a prepress technique used when two or more colors overlap in a design. During the plate-making process, slight adjustments are made to the size of one color area relative to another, based on the printing sequence. This helps ensur…

In offset printing, the four most common imposition methods are single-sided, sheet-wise (self-turning), work-and-turn, and work-and-tumble. Each method offers distinct advantages, and the appropriate choice depends on the product specifications, pre…

In the prepress stage, it is common to encounter images with distinctly different color blocks, where one color overlaps another. During printing, each color is printed separately, and due to mechanical inaccuracies, misregistration between color blo…

When preparing the layout for output, especially in traditional plate-making processes, two key factors should be considered:

Content Adjustment and Consolidation: The content should be adjusted or consolidated to fit within the layout, leaving mini…

1. Regular Cleaning
Perform cleaning regularly, refill with fresh developer solution, and carry out maintenance according to the manufacturer’s recommendations. All nozzles, tubes, brushes, and rollers should be cleaned frequently and replaced when …

Improving the durability of CTP plates is an important way to reduce production costs, minimize material waste, shorten production cycles, and increase overall efficiency. In modern offset printing, CTP (Computer to Plate) technology has completely r…

When book design is expressed through printing techniques, it must manifest itself in a specific way — through its display. A single point on a plane can generate a sense of spatial tension around it; similarly, when a book is placed on a bookstore …

In modern printing production, CTP (Computer-to-Plate) has replaced traditional film-based plate making, but blurred images on plates can still occur. Blurred images directly affect print quality and are mainly caused during the plate-making process.…

(1) Small Text and Fine Lines
When preparing files for printing, small text and thin lines should be designed as single-color objects to avoid misregistration during multi-color printing.
The minimum line width should be no less than 0.1 mm, otherwis…

1. Pay Attention to Sample Sheets
① Sampling Inspection During Printing
After the start of formal printing, the preset ink supply and dampening levels determined during make-ready will change slightly. Frequent sampling and readjustment are required…