Since the five printing methods are different, it is necessary to match the appropriate printing method according to the needs of the printed matter, so that the printed matter can receive the expected effect.
1. Letterpress printing
There are many words, few photos and pictures, there are many opportunities to change the text, and the number of printed products is not large-hundreds or thousands of printed materials should be printed in letterpress. The number of type printing should not exceed 30,000, and the fine picture electronic version should not exceed 70,000 or 80,000. Printed pictures must use pink paper to get the perfect dot. So you can't use cheap paper to print pictures and hope to achieve beautiful results. When using a letterpress flat-line version of the table, the intersection of lines is easy to separate and disconnect, which is a common shortcoming. In addition, too much pressure when printing or too soft surface of the pressure cylinder will make the back of the printed sheet of the finished product have embossed protrusions, which will greatly reduce the quality of the printed product.
2. Offset printing
The biggest difference between offset printing and letterpress printing is that letterpress printing screen images must use smooth surface paper, but offset printing does not have this need, as long as the paper is not too rough. The effect of screen printing is softer than letterpress, and it is easy to print round dots.
The resin plate or nylon plate is another type of printing plate that can withstand more wear than the above-mentioned types. The printing times can reach one million, which can be said to be the longest life of the printing plates. However, the method of using this type of printing plate has been slightly different from the ordinary offset printing method, that is, wetting system is not needed, so it is called "dry offset printing".
Generally speaking, the more pictures in the print, the larger the picture area, the more suitable for offset printing rather than letterpress printing. As mentioned above, the effect of printing pictures with offset printing is better than that of letterpress printing. Therefore, general color printing and four-color printing use offset printing instead of letterpress printing.
3. Gravure printing
Gravure printing is suitable for printing high-quality and expensive publications. Whether it is a four-color or black-and-white picture, gravure printing can closely resemble a photograph. Due to the high cost of plate making and the large volume of printing, it is the least used among the five types of printing in Hong Kong.
4. Screen printing
Because screen printing ink is particularly thick, it is most suitable for printing with special effects. The quantity is not large and the ink color needs to be thick, especially suitable. You can also print on three-dimensional such as square boxes, boxes, round bottles, cans and so on. In addition to paper, the bottom printing can also be printed on cloth, plywood, plastic sheets, metal sheets, glass, etc. It is commonly used to print pennants, T-shirts, Watton boxes, soda bottles, circuit boards, etc. The above-mentioned various printing features cannot be achieved by other printing methods.
5. Offset printing (rubber printing)
Offset printing is only suitable for printing plastic bags, hand drawn, small and large plastic packaging. The input printer for printed sheets is not a single sheet but a roll, and it needs to be cut one by one after printing. The fineness of printed dots and lines is far inferior to letterpress and offset printing. It can be seen that offset printing cannot be used to print book publications.
Product categories of Cabinet Furniture, we have years of experience in the manufacture of furniture, Shoes Cabinet, Bedside Table, Cupboard , TV Stand and Coffee Table suppliers/factory, wholesale high-quality products of Study Desk , Gaming Desk and Working Desk . We have the perfect after-sales service and technical support. We hope we can cooperate happily.
Cabinet Furniture,Bathroom Cabinets,Kitchen Cabinet,Storage Cabinets
Baklam , https://www.baklamjm.com