1 reference standard
GB 9851 Printing Technology Terms
2 signatures
2.1 White Page
Due to a printing accident, one or both sides of the page are not imprinted.
2.2 Small pages
Book pages that are smaller than the size of the cut.
2.3 The page
There are still damaged or incomplete pages after cutting.
2.4 Death Break
Due to the wrinkles of the printed materials, the characters and patterns of the printed products will appear to be missing.
2.5 Three fold quote
After three overlapping folds of the signature.
2.6 four fold quote
After four overlapping folds of the signature.
2.7 crease line
Printed page folding lines during folding.
2.8 version
The two parts of an overall pattern printed on the adjacent book pages are spliced ​​and bound, or two parts of an overall pattern printed on the two sheets are put together, and overlapping edges of the two sheets are adhered to form a print sheet.
2.9 Flower wheel knife
The circular blade-shaped cutter has a blade on the outer circle like a petal and is used in the page-drawing process.
2.10 Demarcation
The booklet is cut along the crease line with a flower wheel knife so that it has a certain length and interval of the opening so that the air is excluded during folding and the folding is accurate. The final fold of the signature in the glue binding has the function of penetrating the adhesive.
2.11 Sticky mouth
The portion of the signature that is glued on the signature when the booklet glues together the scattered pages. Usually the last fold of the crease line is used as a reference line, and a certain width is applied to the edge of the signature.
3 Glue binding
3.1 Milling back
The milling book is used to mill the back of the book block as required, so that all pages are exposed at the back of the book.
3.2 Saw mouth
In the vertical direction with the back of the book, a saw blade is used to saw a groove with a certain depth, width and space on the back of the book to facilitate the adhesion of the adhesive to the page.
3.3 Books bundle
With a rope and two book plates, the same number of signatures or the same kind of book blocks are tied together neatly and flatly by a certain length.
3.4 Leverage
After manual copying, the back of the book is wider than the thickness of the book block. After wrapping, the cover is raised at the junction of the back of the book and the cover or back cover.
3.5 Shrinks
Either side retracts the signature in the book block.
3.6 side glue
The adhesive glue applied to the cover of the book block.
3.7 Front mouth
Back side of the book parallel to the book.
3.8 Break
Damage to the cut of the book block after cutting the book block.
4 lock line
4. 1 flat lock
A kind of binding method is set by the lock line.
4.2 Cross lock
A kind of binding method is set by the lock line.
4.3 Needle distance
The distance between two adjacent stitches on the same signature (or the same binding) in sewing (or stitching).
4.4 Missing needle
There is no stitching eye in sewing (or sewing).
4.5 Coils
In sewing (or sewing), the stitched lines are stacked around the needle eye in a loop due to lack of tension.
4.6 Out of set
In the sewing thread set (or sewing set), the line of a book is not tightened or the thread clasp is not fastened, so that the signature cannot be locked with the book block.
4.7 Empty needle
It is not necessary to punch the thread at the head and foot of the sewing book block.
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