Alternative binding program - ring booking (2)

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 and 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 (Spiral Binding) is a method of binding a single wire into a spiral and threading it 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 the wire spiral ring: 5:1, 4:1, 3.5:1, and 2.5:1.