Soft Surface Hardcover Technology

The post-press hardcover technology is developing towards personalization and diversification, and the soft surface hardcover is a new hardcover process. With its low cost and simplified technology, it has been favored by more and more publishers and patrons. Here, the author combines production practices and discusses the production process of hardcover hardcover books.

Soft-faced hardcover book refers to the new hardcover process that is different from the general hardcover book processing in the cover production. Its book block processing and sleeve processing process is exactly the same as the production of general hardcover books.

Production process

1. Book block processing

Folding a viscoelastic lining, a single page, a book, a lock line, a flattening, bundling, a brush, dry, a cut, a cut, a round ridge, a ridge, a sticky cloth, a gauze, a back paper, or a cheese. paper).

2. Cover processing

After the cover (UV glazing, embossing and other finishing) a pressure line, die-cutting a brush adhesive four fold, paste the soft cover.

3. Coupling processing

Coated plastic book core and soft bag cover sleeves together a pressure trough lining a flattening.

Soft surface hardcover book cover pressure line size design

1. Square back

The size of the back of the book is determined by the actual size of the back of the book measured after the flattening and bundling. The opening of 32 books and 32 books is 3. Omm, 1 6 books floating mouth is 3.5mm, eight open and more than eight books floating port is 4. Omm.

Due to the overlapping of the back of the book backpack and the occupation of the plug cloth, it is necessary to increase 2.0-2.5 mm around the back of the book. Four sides are folded to be 15mm, if the ruler

If you are not big enough, you can enlarge the white side outwards.

Square back soft cover hardcover book cover pressure line size:

High school finished high + 2 X float mouth width;

Width 2 measured book back size + 2 X finished width + 2 X floating mouth width 10 2> <(2 or 2.5 mm) (back overlap and plug cloth occupying).

2. Round back

The size of the back of the book is determined by the actual book back size X 1.1 measured after the flattening and bundling, and the floating height of the 32-opening and 32-opening book is 3. Omm, 1 6 open books floating mouth is 3.5mm, eight open books and above floating port is 4. Omm.

Due to the overlapping of the round knapsack and the use of the plug cloth, it should also add 2.5-3 to the left and right sides of the book. Omm, the four-folded sides are all set to 1 5mm. If the size is not large enough, the white side can be enlarged outward.

Round back soft cover hardcover book cover pressure line size is

High = finished product + 2 X float width;

Width = Measured Book Back Dimensions X 1.1 7 Dimensions 2X Product Width Twenty-two X Floating Port Width + 2 X (2.5 or 3 mm) (Book Back Overlap and Closure Cloth Occupancy).

Regardless of whether the cover die-cutting size of the square back or circular endorsement is on the basis of the size of the cover press-line, the height and width are each increased by 2 hem widths, and the opening size is 2 X 1 5mm-30mm. The four corner cutting degrees are 45°, so that the four corners are just right after being wrapped. As shown in Figure 1.

Precautions

(1) For the sake of aesthetics and ease of back pressure slot, you can press the two tacking lines at 5mm or 6mm (depending on the size of the script) outside the left and right back line. line.
(2) The cover press wire must be deep and straight, so that after the four sides are brushed with adhesive, they are well folded and bonded.
(3) Due to the different roundness of the roundness of roundness and the difference in actual production, it is better to make several sample books after molding the press lines. Check whether the dimensions are correct, whether the three sides are uniform, and then put it into mass production. . If the floating port is inconsistent, the size can be enlarged or reduced according to the actual situation.
(4) After the finished soft surface hardcover book, the book core should be compact and consistent, the flaps are even and consistent, and the length of the plug cloth is the same. The entire book due to the processing of soft-sided hardcover book is still in the stage of trial and error, perhaps the processing method and process is not perfect, but hope to play a role in attracting and discuss with their peers.

Author: Henan first printing plant Yong-Mei Zhang Xinhua

Source: Print Technology 2005, 10 (Publishing and Commercial Printing)