Binding method of perfect-bound booklet
AssigneeNakamura Printing & Binding Co., Ltd.
InventorTeruo Nakamura
Life of this patent
Estimating the term…
Abstract
A binding method of a perfect-bound booklet includes the steps of folding each leaf of sheets forming a body to obtain multiple signatures; pressing creased parts of the multiple signatures in a thickness direction thereof; jogging a one-book bundle formed of a predetermined number of signatures forming a body, a front cover, and a back cover, or a multi-book bundle formed by stacking a plurality of one-book bundles on top of one another; applying a first adhesive that remains flexible upon curing, in a layer in a middle area 5 to 10 millimeters from both top and bottom ends of a rear face of the one-book bundle or the multi-book bundle; applying a second adhesive on the entire rear face; and drying and curing the second adhesive for a predetermined drying time.
Claims14
A binding method of a perfect-bound booklet comprising:
- a paper folding step of folding each leaf of sheets forming a body to obtain multiple signatures;
- a pressing step of pressing creased parts of the multiple signatures in a thickness direction of the multiple signatures;
- a paper jogging step of jogging a one-book bundle formed of a predetermined number of signatures forming a body, a front cover, and a back cover, or a multi-book bundle formed by stacking a plurality of one-book bundles on top of one another;
- a first application step of applying a first adhesive that remains flexible upon curing, in a layer in a middle area 5 to 10 millimeters width from both top and bottom end edges of a rear face of the one-book bundle or the multi-book bundle;
- and
- a second application step of applying a second adhesive in a layer on an entire rear face of the one-book or multi-book bundle including the parts where the first adhesive is not applied, after leaving the first adhesive layer for a predetermined drying time.
Dependencies are inferred from the claim text.