Processing technology of the hottest line bound bo

Processing technology of thread bound books

first, the form of thread bound books

thread bound books have two forms: paperback and hardcover

paperback books adopt a paper cover, and the binding method is simple, without corner wrapping, mouth cutting, and mounting. There is no letter cover or simple letter cover

hardcover books use cloth or fabrics such as damask and silk to be used as the cover on paper. The binding method is also more complex. The upper and lower corners of the binding are wrapped with fabric (called wrapping corners), and there are ribbed and compound edges (the three ribbed edges or front edges of the cover are adhered by the lining), so as to increase the straightness and fastness of the cover. Finally, wrap or package the books with letter covers or book clips

there are many forms of binding for thread bound books, as shown in Figure 7-2, namely: a four eye thread riding type; B Taihe style; C hard corner four

eye type; D tortoise shell type; E tangben formula; F hemp leaf type; G four eye type

tangben type and four eye type binding methods are basically the same. The solid angle four eye type is a reform form of corner reinforcement based on the four eye type. The above three types of binding forms are commonly used by researchers through the control of the cold rolling process of TC6 plate

II. Thread bound book processing technology

thread bound book processing technology is divided into two parts: thread bound book processing and letter processing

the processing process of thread bound books is as follows:

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material handling - folding - Page matching - checking and straightening - flattening - column punching and paper nailing - sticking the cover - matching the book, cutting the book - wrapping the corner - re opening - punching and thread binding - sticking the sign strip - printing the book root when the hammer body rebounds without breaking the sample

trimming. That is to uncover, select and classify the printed pages one by one, and then tidy them one by one according to the column foot and frame. This operation is called "book donation". After the pages are neat, use a single-sided paper cutter to cut the pages to the required size

fold. Thread bound book folding is based on the standard of the day before the middle seam, and the white side of the single-sided printed book page is folded in half with the picture and text facing outward. The folding seam is the front mouth. Generally, the folding seam of the book page is printed with the "fishtail" mark as the middle seam folding mark, which is called "black day folding", and the plate frame as the standard line of the middle seam folding, which is called "white mouth folding". After folding, the lines of the book post column are neat, the width of the fishtail column is one

, and the creases are compacted without curling

page. The page matching operation of thread bound books is basically the same as that of paperback books. The page of thread bound books is thin and the paper is soft. In addition to the general picking method of flat binding, it is also commonly used to distribute. When distributing, arrange the books on the same page number into a trapezoid according to the page number sequence, stack them together, and then pull out the books from one end, which is a matched book. The pages of the books after matching are arranged neatly, without wrong posts, no volume posts, and neatly arranged

column. The neat operation of spreading the pages into a fan shape and neatly arranging the fishtail bars on the front crease of the pages one by one is called neat bars. The first four fold edges of the book post should be scraped flat and neatly before the column is aligned to prevent the pages from arching when the column is aligned. The column lines of the books after the columns are aligned are vertical, not disordered, and the order is correct

punching needle. For the books with complete pages and columns, the manager shall punch holes and wear Paper nails after checking them, so as to ensure that the pages do not move and the columns are neat

two paper needle holes are punched, with the upper and lower positions at 1/3 of the book length and 6 ~ 9mm away from the spine. The hole shall be drilled vertically, without cracks and holes, and the diameter of the needle hole shall be subject to the ability to enter the needle and thread

the material used for paper printing is the same as that of the book ordered, and vertical lines are used. The paper needle should be straight and firm, and its diameter should be consistent with the needle eye

cut books. Press the whole set of books with glued cover, back cover and matched pages along the opening, put them on the cutting table of the three side cutting machine, and cut the books aligned with the upper and lower regular lines. The cutting edge of the book should be smooth, flat and beautiful, and the pressure of the book should be appropriate to avoid indentation on the surface of the book after cutting

wrap angle. In order to protect the corner of the book, make it not scattered. It is not folded, strong and durable, and the upper and lower corners of the back of the book are wrapped with colorful or silk before threading, which is called wrapping corners. The position of the corner is at the top and bottom of the first needle eye of the book, and is perpendicular to the line mark and incision. The material for corner wrapping is fine and soft fabric, with appropriate adhesive, the corners are folded neatly, and the corners are flat, firm, natural and dry

re mouth. Bond the lip on the three sides of the cover (or one side of the front lip) with the lining, and cover the lip to increase the straightness and firmness of the cover and maintain the neat appearance

thread the book. Generally, there are four needle eyes. The upper and lower positions are determined according to the sewing form, and the distance from the spine is 13 ~ 18mm

thread 60 or 42 yarns, 6 strands of waxy white thread or silk and hemp thread of the same specification through the eyelets to fasten the pages

double wires are used for threading. According to different threading methods, the incoming wire should be correct and the tension of the stay wire should be appropriate. The books shall be flat and firm after threading, and the double stranded wires shall be arranged side by side without twisting, crossing, overlapping or separating wires, and the wire knots shall not be exposed

sign. Stick a book title tag on the cover. The position of the tag also has a certain impact on the shape of the book. It is generally stuck to the upper left corner of the cover, about 8 ~ 12mm away from the head and front mouth respectively. At the same time, remove the deformation layer generated during cutting

print roots. Thread bound books are usually placed flat on the bookshelf. In order to facilitate searching, the title and volume number of the book should be printed on the right side of the foot