Alternative binding program ring book (on)

Ring-setting is a post-press processing technique that uses bookbinding materials such as comb clips and spirals to bind loose leaflets. Compared with traditional bookbinding methods such as glue binding, lock stitching, saddle stitching, and wire binding, Its appearance and production process are somewhat different. The common ring-setting methods include two-wire ring setting, wire spiral ring setting, plastic wire spiral ring setting, and plastic ring setting.

The ring book is simple, crisp, generous, and has good flatness; can achieve 360 ​​° flip (except for plastic ring), consistent with the reading habits of a single hand-held book; can use a variety of pages in the same book, such as folding Non-standard pages such as inserts, index labels, patch pockets, small-sized inserts, and profiled pages; can be used to bind large-format books (up to eight open); easy to use, economical and practical in comparison to glue and lock stitches .

Double loop booking

Wire-O Binding or Two-loop Binding is one of the most advanced in the ring-setting scheme. It uses a double wire loop as the binding material and can be booked to a professional manufacturer according to the customer's required size and color. When the double coil is used to process the books and magazines, firstly a row of binding holes is punched out at the opening, and then the already-formed binding line is inserted into the hole to complete the closing of the two-coil binding line. Among them, the threading and closing of the gutter can be done by the machine automatically or manually.

The two-wire ring is suitable for binding book blocks with a thickness of 1 inch or less. Depending on the circumstances, two different process flows can be selected. In the first flow, the pages are printed in the form of signatures after they have been printed.

In the gluing process, only a thin layer of glue is applied to the back of the book, and after the three sides of the book are cut, the back of the glued book is completely removed.

If the job budget to be processed is relatively low, the batch size is small, or the page size is inconsistent (such as folding inserts, die-cut pages, labels, and other pages), a second, relatively simple process flow is recommended. After the page is printed, first cut the four edges to the finished size, and then use a single sheet collation machine to perform the collation or manual matching, and finally complete punching and piercing.

It should be noted that the opening gap of the double loop in the gutter must be between the back cover and the last page of the book block. In addition, standard, consistent pitches must be used for the twin coil bindings and binding holes. The pitch refers to the center distance of two adjacent binding holes at the mouth of the mouth, or the distance between corresponding points of two adjacent wire rings. There are two ways to represent it, one is the metric representation in mm and the other is the proportional representation. For example, a 4:1 pitch indicates that there are 4 binding holes evenly distributed per inch of length. If converted to metric, it corresponds to a pitch of 6.35 mm.

For a two-wire ring setting, generally, if the book block thickness is less than 0.5 inches, a 3:1 pitch is generally used; if the book block thickness is greater than 0.5 inches, a 2:1 pitch is used. In order for the punching process to not damage the text and patterns on the page, a sufficient amount of opening distance must be set. For bookbinding with a pitch of 3:1, a minimum 3/8 inch binding margin (distance from the back edge of the book to the edge of the binding hole) is required; for bookbinding jobs with a pitch of 2:1, set aside 1/2 ~5/8 inch allowance.

Two-line ring can be used for binding calendars, recipes, gantry, books, samples, brochures and other products. When stapling a calendar, simply insert the two-coil binding line from both sides along the back of the book, and then insert the dedicated pendant.

After the book with double coil binding is turned on, the pictures and illustrations on the left and right pages will not be misplaced, so it is particularly suitable for binding books with a cross-page pattern. In addition, the process adapts to automated production methods, and the benefits are high when printed in large quantities. The disadvantage is that it is prone to permanent deformation of the fashion line, which will affect its aesthetics.

Plastic thread spiral ring

The gutters in the Plastic Coil Binding are available in a variety of colors, including black, white, and standard colors, as well as various spot colors, fluorescent colors, and flash colors, as shown in FIG. 3 . In general, the gutter should be ordered to the professional manufacturer according to the specific size and color of the script. When making a plastic thread spiral ring setting, first punch out the binding hole on a single page, and then complete the piercing through a special piercing machine and cut off the gutter. Finally, the two ends are bent and processed. The end of the screw should not exceed the diameter of the spiral gutter.

The thickness of the book block with a plastic thread spiral ring is usually 13/4 inch or less, which can meet the needs of frequent use. However, when the book with this binding mode is opened, the pattern of the left and right pages may be misaligned, so it is not suitable for a book with a cross-page pattern. In addition, the process generally uses semi-automated processing methods, and the highest production cost is in the four types of ring setting methods.

The pitch of the plastic spiral is selected as a reference standard. As shown in Table 1, a 3/8 inch binding margin must be set regardless of the pitch.

The plastic thread spiral ring has the advantages of being durable and not easily deformed, can be quickly restored to original shape after being pressed, light in weight, and has a relatively safe use due to the bent end, and is particularly suitable for binding children's books, cooking books, and operations. Guides and other products.

Wire spiral ring

Spiral Binding is a book binding method in which a single wire is wound into a spiral and penetrates into a bookbinding hole.

The wire spiral ring setting is best suited for book thicknesses up to 13/4 inches and can be fully automated. It is also sometimes used for binding thick books, but its process flow is slightly changed. At the time of manufacture, the metal wire is first made into a spiral; then, the spiral wire is put on the book block by an automated device; finally, the two ends are bent. The large-diameter wire spiral ring is gradually becoming one of the excellent programs for ring set processing above mid-range volume with its high efficiency and economy. It should be noted that the position of the binding hole is slightly away from the back of the book, and a thicker wire is used to improve the binding strength and durability of the book. Make a minimum of 3/8 inch between the punching position and the opening.

There are four standard binding pitches for wire spiral rings: 5:1, 4:1, 3.5:1, and 2.5:1. There are dozens of specifications for metal spiral wire, which can be adapted to the bookbinding needs of books of different thicknesses. By selecting different colors of wire, a variety of appearance effects can be produced. The general principle is that the selected color should match the cover color, pattern, company logo, and the like. Books with spiral-wrapped staples can also be misaligned when folded, so they are not suitable for binding jobs with cross-page patterns. However, metal spiral filaments are generally formed by crimping in the process of penetrating the book, so the material cost is lower, and it is adapted to highly automated production methods. Therefore, the cost is the lowest among the four solutions. The quality of this binding is not very good, there is no plastic line spiral ring as rich in color and varied effects, there is no double-stranded ring set of strength and exquisite sense, but under the pressure of the gutter is also very easy to deformation And long-term use will leave traces on the books. Therefore, its overall market share in recent years has shown a downward trend. At present, there are calendars, educational books, and reference guides with a small number of pages for products that use wire spiral rings.