We often only pay attention to the number of pages of a book, the way of formatting and folding, and the process of forming a book, but we rarely think about how many full sheets of paper it is composed of and how the page numbers are arranged. Determining the page number of the book is related to printing, it is the premise of the entire process setting. With it, we only know how to print, print, bind and book. Full-page paper is printed on one side or once on folio and double-sided is printed once. A book consists of multiple printed sheets, and one printed sheet can print multiple page numbers according to different formats. For example, if a printed sheet is printed with 8 page numbers and the length is 64 (multiple of 8) pages, 8 full sheets are required. This is the case where it can be filled. If the content of the book is only 60 pages, how to arrange and set the number of blank page signatures. If the book has double-sided white pages, how to arrange it? The following is an example of offset lithographic printing machine, 32 format, vertical cross-folding, and book binding. The front and back page numbers are set as follows. (1) If the book page number is a multiple of 32, such as 128 pages, 256 pages ... just typeset according to the page number above. (2) If the book has 33 pages of content, remove 32 pages of the entire printed sheet, and the remaining page 33 of the film is processed independently, pasted on the large film and then exposed, the actual process is only 8 open (ie 0.25 printed sheets), and then divided Covering the entire folio with 4 exposures at one time. (3) If the book has 42 pages of word content. Excluding the 32 pages of the entire printed sheet, the remaining 10 codes, 10 ÷ 32 = 0.3125, then you need to increase the white page into 12 codes, 12 ÷ 32 = 0.375, then spell 0.25 printed sheets, that is, 8 page numbers, 0.25 × 32 = 8, 0.375-0.25 = 0.125, remaining 0.125 printed sheets, 0.125 × 32 = 4, printed the last 4 page numbers (including a double-sided white page). Pages 1 to 32 are on one page, pages 33 to 40 are on the other page, pages 41 to 42 and a white page are on the third page. Finally print separately, and then stick pages, sets or inserts. (4) If the book has 50 pages of text content, except for the 32-page full-print sheet, there are 18 pages, of which 16 pages are 0.5-print sheets, and the entire print sheet is exposed in two exposures. Because the layout content is repeated once, one PS version can be printed. Two copies of the signature. Therefore, the typesetting of non-full-printed signatures is essentially a step-by-step rounding process. In addition, in actual production, in order to ensure that no off-page or page-off, usually non-complete printed sheets, single sheets are sandwiched and bound in the entire printed sheet, a complete printed sheet is not a continuous page number (1 ~ 32), but Page numbers separated by an area are reserved for single-code inserts. Of course, when special page numbers appear, we can use other special folding methods, such as parallel folding and mixed folding. Take the case of parallel folding, for example, it is based on the order of page numbers, sandwiching the first folded paper edge, which is often used for 6 pages and 10 pages. Mixed fold is a folding method that has both parallel folds and vertical cross folds, both turning and rolling folds, and is often used in 6-page, 9-page, double-folding. This bald Mannequin Head is perfect for showcasing scarf`s or jewelry, making wigs, practicing make up, display wigs, hats, jewellery ,wigs can easily be pinned to the head, can also be used as home display. Doll Head,Bald Mannequin Head,Cosmetology Afro Wig Bald Head,Manikin Model Doll Head Xuchang Le Yi De Import And Export Trade Co., Ltd. , https://www.leaderhairproduct.com
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