Offset printing: is the biggest difference between offset printing and book printing book printing printed screen picture must choose smooth surface of the paper, offset printing is empty without the need to, as long as the paper too rough. Screen printing effect than trainees in soft, easily print too round of network. Resin or nylon is another edition of several version by more than the wear plate, impression of up to one million, is the oldest in the plate. However, using the method of this kind of plate have slightly different with the ordinary offset printing methods, is no wetting system, hence the name for "dry offset printing. In the overall print pictures, the more the image area, the greater the more appropriate to use offset printing and unfavorable use book printing. If above, use the offset printing image effect is better than moveable type, is generally color printing, four-color printing with offset printing instead of book printing.
Live plate printing: text, photos and pictures, text changes more opportunities, print the number is not big - hundreds or thousands of between print all appropriate with book printing. Type printing number should not be more than thirty thousand, fine picture version also shoulds not be more than 7, eighty thousand. Printed images must use paper to get the perfect network. So desk calendar printing companies that can't use cheap paper to print pictures and hope to obtain fine effect. With trainees in row line version of the form, the junction of line separating out easily, this is a common defect. In addition, when applied to print to print too much pressure or pressure cylinder surface is too soft can make the back of the printed sheet manufactured goods have embossed convex, this will greatly reduce the quality of printed matter.
Three, intaglio printing, intaglio printing is suitable for printing high quality and value of expensive journals, whether it is a four color or black and white picture, gravure printing can be highly qiao like photography. Due to the plate making fee is expensive, must be large print runs.
Four, rubber plate printing: gummed paper printing is only applicable to plastic bags, hand pump, the size of the plastic packaging. Press the input to the printing machine is not single but package, to make cutting after printing. Printing dot, line far more subtle degrees than typographic and offset printing, visible gummed paper printing can't be used to print books publication.
Five, the silk screen printing: as the silk screen printing ink is particularly strong, the most appropriate is used up for special effects, the quantity is not big and ink need strong particularly appropriate. And can be applied on 3 d printing, such as square box, box, round bottles, cans, etc. Printing in addition to the paper can also be printed cloth, get, plywood, plastic, metal, glass, etc., are commonly used to print pennants, t-shirts, pass box, cans, circuit boards, etc.
(Gold Printing Group) |
