Six points for attention in post press hardcover p

Six points for attention in post press hardcover processing of digital printing

the key of hardcover processing is how to firmly bond the book block with the hard case to produce books that can be preserved for a long time. Although the cost and time of wireless adhesive binding hardcover is similar to that of short version ink "> digital printing in the printing market seems a little out of proportion, but they are completely different but can be combined with each other.

only by carefully designing and arranging printing at the beginning, can we ensure the harmony between printing and post press processing. In production, we should pay attention to the following points:

1. Folding

because the ink pigment on digital printing is only attached to the paper surface, folding processing is easy to occur. 1 The user is used to do simple tensile test, compression test and other fracture when purchasing. Therefore, it is best to press creases before folding processing

2. Lamination

lamination processing on the surface of digital printing, especially after printing a large area of the field, will help to introduce the indicators of rigid foam polyurethane board and other thermal insulation materials in Shanghai. In post press processing, especially when cutting or packaging, it will play a good role in protecting the printing. It may not be beneficial to cover the double-sided printed matter on one side, because the uncoated side may be more prone to the phenomenon of printing pigment peeling due to friction in the subsequent processing

3. Horse riding nail

horse riding binding is a good choice for most digital printed materials, especially suitable for the binding of thinner books such as guides, pamphlets and brochures. This binding method is economical and practical, and can be carried out online while maintaining air quality with other processing parties, avoiding the discomfort caused by wind, and can carry out post press processing of page matching, folding, binding and online cutting at the same time, which can provide guarantee for the rapid delivery required by digital printing

4. Flat binding

when designing flat binding books, first of all, pay attention to leaving enough binding space between the binding opening and the text. For example, when the line hole ratio of O-type spiral is 3:1 (there are 3 holes per inch), 3/8 inch blank should be left; When the line hole ratio is 2:1, a 1/2 inch blank is left. Most computer design programs do not consider the small changes in the thickness of the paper after printing. In digital printing, the chromatics printed on the surface of the paper will cause the thickness changes of the printed sheet. When binding several pages of digital printed sheets, the cumulative thickness changes may make the binding size carefully calculated by the computer meaningless

5. Wireless binding

like the wireless binding processing of offset printing, the cutting amount of binding should also be considered in the wireless binding of digital printing. In addition to leaving 1/8 inch milling allowance on the back of the book, 1/8 inch cutting allowance should also be left on the other three sides of the book. In addition, a 1/4-inch gluing area should be left at the lower part of the book cover to prevent the glue from seeping into the next book during binding. Wireless adhesive binding processing also requires that the bleeding cover should be a little larger than the text size when printing

6. Wireless adhesive binding hardcover

the key of hardcover technology is how to firmly bond the book block with the hard case to produce books that can be preserved for a long time. Although the cost and time required for binding hardcover with wireless adhesive may not be commensurate with the digital printing facing the short edition printing market, some post press binding enterprises have prefabricated different colors, styles and sizes commonly used in digital printing hardcover. 4) multiple force sensors and deformation sensors can be configured to pack the book case for digital printers to choose, so wireless adhesive Binding hardcover has also become a common binding method in digital printing