Sticky Book Shell and Spine Pressure Drying: The upper shell process consists of two steps: sticky shell and spine press drying. The sticky book shell is the sticking of the cloth cover to the book block. The front and back of the book block and the inside of the book case are coated with adhesive on all four sides, and then the cover is glued onto the book block. When sticking, make sure that the edge of the cover is evenly and evenly beyond the edge of the book block. The oversize is the same, and then it is pressed tightly.
Spine compression drying refers to drying the binder of the adhesive shell under pressure. A series of pressure plates and thermoformed plates hold the book glued to the book case to make it stick. These pressure plates and thermal plates will hold the books under a lot of pressure and allow them to dry for a while before they are released. A book may need to go through five or more pressure plates and thermoforming plates depending on the degree of drying.
The efficient bookcase opportunity combines all the processes, including rounding, ridges, sticky shells, oven drying, and bookcases, to form a mechanized production line.
Bookcase binding. Bookcase binding can be divided into three categories: large hardcover, small hardcover, and library decoration. This classification is based on the quantity and nature of the binding. Most hardcover book books fall into the category of big hardcover.
Large hardcover refers to a larger number of hardcover binding methods. Because this type of binding uses more automatic or semi-automatic binding equipment, its number of operations is generally not less than 1,500.
Small hardcover is a small amount of hardcover binding. It is mainly used for manual operations and also for books that cannot be machine-bound, such as the Bible wrapped in soft leather.
Library decoration is a special binding method commonly used in libraries. It includes pre-binding, renewals, and general repair work. The library binding machine is similar to a small hardcover machine and can be used to handle a smaller number of binding jobs, requiring more manual operations. The main purpose of this binding is to increase the degree of wear resistance of books commonly used in public libraries.
Online decoration
On-line finishing can be used as part of a web-printing process, instead of a post-printing process, to do some work on the prints. It includes labeling, folding, die-cutting and other processes. Cover pressure embossing and embossing and other work can be completed in the online finishing, but also as an independent processing process.
Offset presses for printed publications and books often use a compound folding machine to cut and fold the paper into signatures for later binding work. Other special accessory devices, such as pre-folders and plow-folders, can also be connected to on-line processing equipment to increase work efficiency. Online finishing differs from the post-press independent finishing, which combines several processes of post-press processing.
Special Process
Point-of-sale posters, stationery, menus, and greeting cards all require special finishing techniques. This article will discuss finishing techniques related to pressure relief, foil stamping, and die cutting. These processes can be included in the post-press processing system, the online finishing system, etc., or they can be used alone.
Pressure relief. Pressure relief is to use the mold to press out the raised graphics. This method is also used to suppress dark lines, but it does not use aluminum foil, ink, etc. to decorate the graphics. Indentation is the use of a mold to emboss a graphic on paper.
The embossing machine consists of an embossing bed, a temperature-controlled embossing plate and a convex stamping die mounted on it. On the opposite embossing plate, there is also another mold corresponding to the stamping die and installed therein. The stamped printing material is also loaded in this platen. In press embossing, when the platen comes into contact with the press and begins to pressurize the printing material, imprints are created. In the embossing process, cold molds can be used for indentation, but hot molds are more common.
Pressed gold foil. Pressed gold foil refers to the entire process of stamping the gold foil passed through the printed substrate of the heated mold and the feed roller with a press. When the machine is pressurized, the gold foil is pressed against the printing substrate. If flat pressure is used, the gold foil on the substrate will not be indented. The gold foil embossed pattern combines the above-mentioned pressure relief process with a pressed gold foil process. Book covers, cosmetic packaging boxes, and greeting cards are three products that are often pressed with gold foil and gold foil embossing.
Die-cutting. Embossing and embossing are often performed immediately before or after the die-cutting process. If the corresponding attachment equipment is installed on the die-cutting machine, embossing and embossing of gold foil may also become part of the die-cutting process. Products that require die cutting include labels, paper boxes, popular books, point-of-sale posters, and more.
Steel rule die cutting is a common die cutting process. It integrates die cutting, creasing and embossing, and can automatically die-cut one by one or in groups (two or more in each group).
Die-cutting machine with pressure plate and roller type two. The platen die cutter works the same as the embossing machine described above. One platen carries die-cutting and embossing dies, and the other embossing plate carries matching dies. When the two plates are pressed together, die-cutting and embossing are completed. In a reciprocating platen die cutter, the position of one platen is fixed and the other can be moved toward it. Claw Platen Die Cutting Machines Both platens can move. When the two plates meet, die cutting and embossing begin. The platen die-cutting machine can complete 9000 impressions per hour.