Alternative binding program ring book (below)

Plastic Comb Binding is another kind of ring-setting method with a unique appearance, and its market share is relatively low compared with the above three kinds of ring-setting methods.

The process sequence of the plastic ring is as follows: collect page → collation (single type) → punching → clip-on clip on the book block → closed comb clip.

The ring setting process is a semi-automatic operation and is suitable for short-run bookbinding. Of course, all manual operations can also be used according to the needs of the job.

Plastic ring books cannot be flipped 360° like other ring books, but they also have flatness after opening. Compared to the other three options, the plastic ring has two unique advantages:

(1) The comb clips on the back of the book can be printed on the screen by using a screen printing method.
(2) It is convenient for disassembly and assembly. It is suitable for the binding of pages whose content needs frequent updates and can be used for a long period of time.

The diameter range of the plastic comb clips after crimping is 3/16 to 2 inches. Different diameters are used for book binding of different thicknesses. For plastic comb clips with a diameter of 2 inches or more, special locking devices are usually added to ensure that the pages do not fall. In addition, in the two-wire ring setting, the plastic line spiral ring setting, and the wire spiral ring setting scheme, the length of the book is limited by the number of binding holes, and an incomplete binding hole at both ends should be avoided, and the length of the plastic ring book should be avoided. Not limited by the number of binding holes.

The low degree of automation of bookbinding, the high production cost of plastic rings, coupled with the poor appearance of style, its application has gradually declined.

Ring booking processing points

1. Punching allowance The most intractable problem in ring setting processing is to ensure that there is enough binding margin at the mouth to prevent the text content from being destroyed during punching. According to statistics, more than half of the failures in the ring order are related to punching. Therefore, it is advisable that the printing factory should consult the professional binding factory about the bound issue of binding when formulating the production plan, and they should give correct guidance.

2 punching style and gutter selection In general, the two-wire ring set to use a square hole or a round hole; plastic thread spiral ring set to use an oval hole or a circular hole; wire spiral ring set round hole; plastic Ring set more standard square hole. The choice of material for the gutter is also important. For example, the tin wire is cheaper, but when used for a long time, black streaks will remain on the paper surface. Therefore, consider carefully when choosing materials. In addition, the plastic thread spiral ring can be customized color, but the delivery time will be longer and need to buy in bulk.

3. Pitch Typically, square holes are commonly used with a pitch of 3:1 or 2:1; oval holes are 3.5:1 and 4:1; round holes are 5:1. When ordering the gutter, the corresponding pitch must be specified. If the pitch of the gutter does not match the pitch of the binding hole, the binding quality and performance of the product will be affected. If the gutter is wrapped too tightly, the page will lack flexibility and tearing; if it is too loose, the page will appear relatively small, making the entire book clumsy. Therefore, when ordering the gutter, it is necessary to provide the manufacturer with a sample of the book block, and to determine the actual material and the total number of sheets of the finished product, and measure the thickness under pressure-free conditions. After adding 1/8 inch, that is, The book size that can be used as the last sample.

4. Ink As the coiling process involves more manual operations, in order to ensure the exquisite appearance of the finished product, it is necessary to avoid the use of slow-drying colors such as blue light. In addition, large areas of the printed matter should be avoided.

5. Trial-manufactured samples Before the binding is officially started, the binding factory shall be required to provide trial-manufactured samples and, after the confirmation, it shall be put into formal production.

6. Finished Packing All ring set finished products must be staggered so that the binding coils are turned in opposite directions in order to prevent indentation on the booklet cover. In addition, with a certain amount as a unit, the finished product is heat-shrinked and packaged with a plastic film so as to provide better protection for the transportation link.

Ring booking is a relatively unique way of bookbinding. The four programs described in this article have their own advantages and disadvantages. It is advisable for the printing company to begin consulting with the binding specialist in the design stage before making a finishing job in order to select the best binding solution. If the printing company cannot complete the stapling task by itself, it is recommended that the cutting, punching, piercing and other processes be completed together with the binding factory. Because if the cutting deviation or punching is not correct, it will cause troubles to the subsequent processes, which will increase the difficulty of work and increase the production cost. In addition, the establishment of a stable and cooperative relationship between printing companies and professional binding plants is also a very good method. It can not only reduce business investment, lower production costs, shorten production cycles, but also improve the accuracy of work and win more with better products and services. Higher customer satisfaction.



Author/Jiang Ye

Source: Ke Yin Media - "Printing Technology - Publishing Commercial Printing"