What is saddle stitching? The booklet is opened, draped over a V-shaped saddle, and wire staples are driven through the spine from the outside in. It is a fast and economical way to bind a thin booklet, which is why instruction booklets, catalogues and warranty documents use it. Because the sheets are folded before stitching, the pages sit inside one another as a nested set rather than as separate leaves.<\/p>\n
Why must the page count be a multiple of four? Each printed sheet, folded once, produces four pages – two on the front, two on the back. Nest two sheets and you have eight pages, and so on. A booklet of 18 pages cannot be made without either a blank page or a different binding, and designers who plan 18 pages usually discover this after the layout is finished. Planning in fours from the first draft avoids the conversation entirely.<\/p>\n
Which paper weights work on a saddle? The fold has to close without cracking and without the booklet springing open. Coated stock in the 90 to 150 gsm range is the usual ground, with heavier covers on the outside. Very light paper makes a booklet that feels thin and shows print through; very heavy stock in a thick booklet pushes the spine out and the staples cannot hold the set flat. The relationship between weight and stiffness is set out in\u00a0the note on paper weight and stiffness<\/a>.<\/p>\n What is creep and why does it matter? In a nested booklet, the inner sheets extend further at the fore-edge than the outer ones because they have further to travel around the spine. Left uncorrected, the page margins shift progressively and the inner pages end up visibly off-centre. Printers compensate by shingling the imposition, moving each successive page slightly. It is a prepress adjustment, not a binding one, so it has to be decided before plates are made.<\/p>\n When does perfect binding become the better choice? Above roughly 64 to 80 pages, depending on paper weight, the spine becomes too thick for staples to hold and the booklet does not lie flat. Perfect binding glues the leaves into a square spine and handles thicker books, at the cost of a longer production route and a spine that can crack if the cover is opened too far. The crossover point is a paper question as much as a page-count question.<\/p>\n What artwork checks prevent a stitching problem? Keep live text away from the spine by at least the amount the inner pages will creep, and keep it away from the trim edge by the same margin as any other print job. Check that cross-page images align after folding, and that no headline sits across the fold where it will be interrupted. Placing images across the gutter is legitimate, but it needs a proof folded on the actual stock. Related prepress issues are covered in\u00a0the note on design files and separations<\/a>.<\/p>\n How should a booklet specification be written? State the finished size, the page count, the paper for text and cover, the binding method, the trim allowance and the packing count. Then say whether the booklet ships flat or folded, because a folded booklet pressed under cartons takes a set. If the booklet goes inside a product carton, agree the folding direction so it opens the way the customer expects. Paper choice is compared in\u00a0the art paper guide<\/a>.<\/p>\n Chengtop produces\u00a0printed paper cards and retail cartons<\/a>\u00a0together with\u00a0bo\u00eetes pliantes<\/a>\u00a0at our Wuhan plant. Send the page count, finished size and paper preference and we will confirm whether saddle stitching or another binding suits the job. Use the\u00a0quote request page<\/a>\u00a0to send the files.<\/p>","protected":false},"excerpt":{"rendered":" What is saddle stitching? The booklet is opened, draped over a V-shaped saddle, and wire staples are driven through the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-5448","post","type-post","status-publish","format-standard","hentry","category-packaging-knowledge"],"_links":{"self":[{"href":"https:\/\/www.chengtop1.com\/fr\/wp-json\/wp\/v2\/posts\/5448","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chengtop1.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chengtop1.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chengtop1.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chengtop1.com\/fr\/wp-json\/wp\/v2\/comments?post=5448"}],"version-history":[{"count":2,"href":"https:\/\/www.chengtop1.com\/fr\/wp-json\/wp\/v2\/posts\/5448\/revisions"}],"predecessor-version":[{"id":5450,"href":"https:\/\/www.chengtop1.com\/fr\/wp-json\/wp\/v2\/posts\/5448\/revisions\/5450"}],"wp:attachment":[{"href":"https:\/\/www.chengtop1.com\/fr\/wp-json\/wp\/v2\/media?parent=5448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chengtop1.com\/fr\/wp-json\/wp\/v2\/categories?post=5448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chengtop1.com\/fr\/wp-json\/wp\/v2\/tags?post=5448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}