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Quality requirements of hardcover book printing on the book block
The ribbon bookmark of the custom hardcover book printing should be pasted in the middle of the top of the back of the book, and shall be glued upright, flat and firmly. The length of the ribbon shall be 10.0-20.0m longer than the diagonal of the book block; The ribbon width is 2.0 ~ – 30m in 32 folio and below, and 3.0-mn in 16 folio and above.
The back cloth should be centered, straight, flat and firm. The length of the back cloth shall be 150 ~ 2.0mn shorter than the length of the book block, and the width of the back cloth shall be 40.0 ~ 50.0mm larger than the back width (square back) or the back arc length (round back).
The paper on the back of the book shall be pasted accurately, flat and firmly. The length of the back paper shall be 4.0 ~ 6.0mm shorter than the length of the book block, and the width shall be the same as the back width (square back) or arc length (round back). The width of the back paper of more than 8-kai picture books can be the same as the back cloth width of the hardcover book printing.
The bobbin paper shall be pasted flat and firmly
a. the length of the Jane paper shall be 2.0 ~ 40m shorter than the length of the book block, and the width shall be twice the back width (square back) or arc length (round back) plus 5.0mm.
b. Kraft paper shall be used for bobbin paper.
It is strictly prohibited to use plant adhesives for various bonding of book block processing.
Contact us to learn more about the cheapest hardcover book printing. We will provide your with the best printing service China.
