Album printing paper is the size of the album format, that is, the area of the album printing paper. A piece of paper, cut into pieces of the same size, how many pieces of paper are each called.
For example, a complete piece of paper is cut into 32 pieces of paper of the same size, and each piece of paper is called 32 pieces. Now there are many different specifications of the whole paper on the market, they cut out the same size of the hole will be different, so we see the same 16, the size is not the same.
Different picture book designs are suitable for different paper shapes. In order to make full use of paper, reduce waste and reduce costs, it is necessary to choose appropriate paper-cutting methods.
There are generally three methods of paper-cutting.
How to cut a picture book design: According to the principle of repeated cutting of partition board, it can be divided into four, eight, 16, 32, 64 and several equal ratio series, so it is called "geometric series cutting".
Advantages: Regular quantity, no residue after cutting, paper utilization rate of 100%, easy to fold using machine, strong adaptability to the binding process, the most economical, can shorten the book cycle. Disadvantage: large number of hops, relatively few form choices. 2. Linear cutting method for album printing: Linear cutting method is that the whole paper is cut horizontally and vertically, and can be opened 20, 24, 28, 36, 40, etc. Advantages: Album printing paper forms are more selective. Paper utilization rate is 100%. Disadvantage: Some cuts have only one page. For example, 3, 5, 9, 15, 25 and so on, can not be folded by machine, will bring inconvenience to printing and binding, printing and binding cycle is longer.
3. Transverse and vertical mixed cutting method for album printing: mixed cutting method is to cut most of the whole paper in line, and the other part in single page. There are horizontal and vertical small layout, which can not be cut directly to the end. A 15-open mixture in which the black part is the remaining edge of the paper.
The advantage of this method is that it can directly open all the digits which are difficult to open by the above two methods, and it can meet the needs of some special-shaped books. Advantages: Both of the above cutting methods can cut the paper directly. According to the different needs of the album, it can be cut and combined to meet the needs of various special pairing, such as 27, 38, etc. Disadvantage: Because it can not be cut directly, it will bring difficulties in the final process and inconvenience in printing and binding. And paper is easy to leave edges, paper will be wasted to varying degrees, thus increasing the cost.
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