Inside, what is watermarking, offset printing, thermal transfer printing, hot stamping

Offset printing is a kind of lithographic printing, simply speaking offset printing is with the help of rubber (blanket) to transmit the picture on the printing plate to the printing method on the substrate, which is also the existence of blanket, this printing method is named. Blanket plays an irreplaceable role in printing, such as: it can make up for the unevenness of the surface of the substrate, make the ink fully transferred, it can reduce the transfer of water on the printing plate (see the role of water in printing) to the substrate and so on.

The above is only a general concept, we now usually say that offset printing may be narrower, that is, there are three cylinders (printing plate, blanket, embossing) of lithography, in the south of our country this printing method is called offset printing.

Watermark Watermark, formed in the process of papermaking, is "sandwiched" in the paper rather than on the surface of the paper, and can clearly see graphics, portraits or words with light and dark textures when viewed into the light. It is made by changing the fiber density of the pulp during the production process of paper.

Woodcut watermark. The official stamp of the old shop.

Offset printing, the inferior one can be washed off.

Upscale, hard. When you put it on, it peels, it peels off, it cracks when you touch it, and even if you get it all off, you get a dark mark.

Thermal transfer: The printing method of transferring the ** on the intermediate carrier film to the substrate with the corresponding pressure is called transfer. Transfer printing is classified according to the transfer method, there are direct transfer printing and indirect transfer printing.

Direct transfer printing refers to the use of the pad printing head on the special pad printing machine to absorb the ink on the pad printing steel plate, and then transfer to the substrate, mostly used for irregular concave and convex containers, small decorations, toys, etc., this way is commonly known as pad printing. Indirect transfer printing is the use of special transfer paper or film to print the pattern first, and then transfer to the substrate, mostly used in ceramic decal printing, textile printing and other ......

The production process of the thermal transfer process:

1) Computer processing: first use the computer to process the words to be printed;

2) Lettering: Use the cutting plotter to engrave the words or pictures to be printed in the computer on the transfer paper;

3) Remove the excess as needed;

4) Overlap the laminated paper with the transfer cloth and put them together in the heat transfer machine;

5) After heating and pressurizing by the heat transfer machine, the disperse dyes on the composite paper penetrate into the cloth, so that the banner is formed.

Precautions: Combine the engraved heat transfer paper and the blank banner cloth together, and the colored side is facing the cloth, and the heat transfer banner machine is heated with a pressing force, and the color of the content on the heat transfer paper will be moved to the blank banner cloth, so as to form a banner with content.

Go to the master and explain it to you, ah!

The difference between thermal transfer printing and offset printing is: different brushing methods, different materials, and different uses.

First, the printing method is different.

1. Thermal transfer: Thermal transfer printing transfers the exquisite patterns on the film before the transfer grinding to the surface of the product through a processing (heating and pressurization) by the thermal transfer machine.

2. Offset printing: Offset printing uses the help of rubber (rubber sheet) to pass the ** on the printing plate to the substrate.

Second, the materials are different.

1. Thermal transfer: Thermal transfer does not need the steps of plate making, plate exposure, and repeated color registration, and does not need various types of tools and materials required for screen printing and thermal transfer printing.

2. Offset printing: offset printing requires the steps of plate making, plate exposure, and repeated color registration, and various types of tools and materials required for rubber printing.

Third, the use is different.

1. Heat transfer printing: heat transfer printing is used to print on soft leather, cloth, cotton and other materials; It can be printed on inorganic matter, or it can be printed on organic matter with complex composition and variety.

2. Offset printing: Offset printing is used to print on crystal, stone, metal, glass and other materials with tough texture.

Encyclopedia - Thermal Transfer.

Encyclopedia – Offset printing.