history
The history of letterpress printing can be traced back to the Tang Dynasty in China. At that time, the printing technology was very developed, and people used wooden boards to carve words and images. However, this method is very time-consuming, because each letter and image must be carved by hand. In order to solve this problem, people in China invented movable type printing technology. This technology uses movable letters and can be quickly combined into words and sentences.
Movable type printing technology soon spread to South Korea and Japan and was widely used in Europe. In Europe, people print books and newspapers with type. /kloc-At the end of 0/9, German engineer Ernest rect invented gravure printing technology, which used grooves to print images and characters. This technology was quickly applied to relief printing, making printing faster and more accurate.
principle
The principle of letterpress printing is very simple. First, the printer must prepare a set of movable type and intaglio. Movable type can be of any shape and size, while intaglio is a flat metal plate with many grooves on it.
Next, the printer puts the movable type and intaglio on the printing machine. When the printing machine starts to operate, movable type and intaglio are pressed into the printing paper, leaving printed images and characters. This process can be repeated many times to get darker colors and clearer images.
operation sequence/order
For relief printing, you need to prepare the following materials and tools:
-Movable type and intaglio
-Printing machine
-Printing paper
-Printing ink
-Printing knife
The following are the steps of letterpress printing:
1. Prepare movable type and intaglio and put them on the printing machine.
2. Put the printing paper on the printing machine and adjust the position and pressure.
3. Apply the ink to the intaglio with a printing knife.
4. Start printing and let the printing machine run several times until the images and words are clearly visible.
5. Repeat the above steps until the required printing quantity is completed.
merits and demerits
Letterpress printing has many advantages and disadvantages. Here are some key advantages:
-Can print high-quality images and text.
-Many different materials and colors can be used.
-It can be produced on a large scale to meet a large number of printing needs.
The following are some major shortcomings:
-It takes a lot of time and manpower.
-Higher costs due to the need to purchase and maintain printing machines and materials.
-Not suitable for short-term and small-scale printing needs.