Wireless bindery product's practice plan (on)

For glue finishing jobs, the difference between success and failure may be small because you forget the 1/8-inch reserve edge, or forget the 1/16-inch bound reserve edge. This article is written from the point of view of the binding of printing and sales professionals, and contains practical advice for any plan, management or production of glued publications.

The first part of the project plan
Each bindery job has four goals: First, the appearance of the binder job must be the same in shape and location for all single job jobs. Second, the page order must be correct. Third, the book must be strong; Fourth, the job processing process should be carried out efficiently to optimize costs.

Therefore, the right raw materials must be selected from the beginning. Raw material considerations include covers, text papers, inks, paper coating, signatures, inserts, binding groups, hair dryers and post-production packaging. In addition, let the binder provide a blank binding sample before production, so that we will know the placement of each page. Of particular note are spine prints, cross-page images, and bound margins for binding. Finally, if we are binding, remember to consider the following information and suggestions. The scope for such success will be even greater.

Appearance
Before the production of samples, please bind the binder to a blank binding sample. If this request is made, some binders will need some fees, but most will not do so. If the final product needs to be mailed and the overall weight is close to 454g (1 pound), this sample is particularly important. In the United States, if the packaging exceeds the 1 pound limit, the postage fee will increase significantly, so that it includes adhesives, attachments, and packaging materials. All other important factors need to be taken into account.

Preserve Borders When making image layouts, consider the requirements for setting boundaries. For example, most companies have a 1/8 inch (3.2 mm) margin of reserve, but some may require more, like 3/16 inch (4.8 mm). If our partnership with the binder begins, don't make assumptions. Cross-page images, hole punches near the spine, and large sheet-figure illustrations all need to be aware of the need to preserve the boundaries in order to avoid problems such as cutting off the page or being glued into the hole.

Cross-Spine Colors If books are colored to close to the edges of the book, making a blank binding sample can assist in the cover design process. Problems with spine printing appear frequently, but it is easy to avoid. Paper produced by different manufacturers varies greatly. And these are linked to changes in air and humidity conditions, and the effect of changes on book thickness can be measured.

The design of the fixed signature hits the book does not have to be different. After the book block has been folded, collated, and then booked, before entering the perfect binding, it will be necessary to hit the sky or the corner. It doesn't matter which way you choose, but it must be fixed.

Double-page layout avoids double-page layout as much as possible. If unavoidable, you can put this page on a separate insert in the book. Because it looks more comfortable, and large sheet-figure illustrations are also common. If the book contains large sheets of illustrations, it is recommended that the binding equipment run 25% to 50% slower than usual, because the table inserts have almost no effect on the preparation time, so when the number of jobs is small, it is hardly a problem. However, when the number of jobs increases, the production speed is too low and there will be problems. If you choose to use a large folded illustration, remember that the smoother the paper surface, the faster the glue will spread.

Book indentation High-quality book indentation process can be completed on most of the wireless binding equipment. For thin books, the indentation appears 1/4 inch (6.4 mm) from the spine. For extremely hard-packed professional-grade image books, all wireless glue books can consider the use of book indentations.

Ultra-thin books We can successfully book with perfect binding to achieve a thinness of 3/32 inch (2.4mm), but if you book a book with a thin book, the cover should be in the direction of the filament to prevent writing. There are undulations. Moreover, the thickness of the cover paper should not exceed 10 pt. If the book is less than 1/8 inch (3.2mm) thin, avoid spine printing as much as possible.

Cover protection If the cover has a dark ink or metal ink cover, it is best to apply a film, UV coating or dry-imprint-glazing process. For the coating, it is specified that an adhesive coating layer is used, and since polypropylene is easily scratched, it is generally not used.

Pre-checking the page sorting makes it a good idea for the binder to pre-check the bindery job. The process includes poly-scratches, milling backs, neat covers, affixing, and binding. Careful examination of each page will find pages with incorrect dimensions and position. Some better binders and post-printers generally perform pre-inspection processes.

The spine identification is to help ensure that the book is posted in the correct order and orientation. Each level of the logo should be printed on the spine of each book. In this way, the operator or the electronic eye can be monitored instantaneously to determine if the page is in the correct position. In order to be completely invisible on the final product, the book label spine should not be wider than 1/8 inch (3.2 mm) and should be 1/16 inch (1.6 mm) on each side of the signature fold.

Product's firmness
Inside cover sheets To achieve maximum adhesion between the paper sheets in the cover sheet, ink and paper coatings should not enter the inner spine indentations and spine sections. If there is a complete bleeding image on the inner page, the overprint should be 1/16 inch (1.6 mm).

Paper coating caution coating too thick. Water, UV coating, glazing, and the use of silicon and common inks will reduce the viscosity of the glue. The glue must be in direct contact with the exposed raw material fibers to obtain a stronger bond. Specially coated images do not matter as long as the coating does not enter the blank space. To make the binding more flexible, keep the ink and paper coating 1/8 inch (3.2 mm) away from the opening. Although 1/16 inch (1.6 mm) may be acceptable, 1/8 inch is the best for final binding.

Paper As mentioned earlier, the greater the area of ​​contact between the glue and the base paper fibers, the stronger the book will be. But this does not mean that we must completely avoid the use of coated paper. If we want to perform a glue-binding on the paint-text paper job, we must do a few blank-binding samples by the clean-seller so that the best agreement between the user and the service provider can be achieved. Working with people who are experienced in difficult-to-print bindings will easily add to our experience. The correct testing and quality control system will also help with the firmness of the book's binding, even if it contains coated paper.

Both the square pages and the cover should be in the direction of silk (parallel to the spine). Filament shorting reduces the sheet tension and life of the inner sheet. The short silk book cover is more prone to cracks at the edge of the spine.
(To be continued)