A move to prevent the lining paper from rubbing th

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A trick to prevent the lining paper from rubbing ink during the last edition

common notebooks in life include 32 open, 36 open, 48 open, 72 open, 100 open, 128 open and other different specifications, including straight notebooks and horizontal notebooks. The outer packaging materials of the notebook include plastic skin, artificial leather, imitation leather plastic, whiteboard, etc., and the inner core is 60 ~ 80g/m2 strip printing and writing paper

in the process of printing and binding, first of all, according to the samples provided by the printing customers, carefully analyze the size of the finished product and the blanking cut, and make clear the color of the inner core bar grid printing. The inner core bar grid has different colors such as black, medium gray, green, blue and brown, and there is also a trace that no color bar grid is printed and only bar grids are required to be pressed on the writing paper. At the same time, some inner core bars are solid lines, and some are dotted lines or dotted lines. The following points should be paid attention to when making notebook printing products:

1 The whiteness, smoothness, evenness, surface strength and other indicators of the inner core paper shall meet the quality requirements, especially the paper shall not be waterlogged. When writing with a pen, the writing paper with a mess of ink cannot be used as the inner core paper of a notebook

2. The inner core grid shall be clearly imprinted, free of oil stain, and clean and tidy. The front and back overprint of notebook bar should be accurate, and the error should not be too large; The position of the head should be larger, and the position of the foot should be smaller, so it looks comfortable; There is a large amount of gas in the liquid-gas phase change material left in the setting. The setting should be smaller, and the position of the external cutting notch should be more appropriate

3. The binding method of notebook is generally hardcover sewing. Whether it is sewing machine or manual sewing, pay attention to the tension when sewing. The thread shall be tightened as much as possible when locking to avoid loose pages, falling pages, irregularity and other phenomena caused by too loose and not compact notebooks

generally, the inner core of a notebook has 200 page numbers (100 front and back sides), with 20 page numbers as a stack. The inner core is divided into about 10 stacks of sewing threads, and then combined into a notebook. Most of the inner cores of notebooks use 60 ~ 80g/m2 writing paper. If the paper is thick and the number of pages contained in each stack is too large, there will be uneven and appropriate stitching and cutting cuts at the inner core grid position, uneven and left-right dislocation, so it is divided into 10 stacks of sewing and sewing

4. When making notebooks, users often only provide samples. In most cases, the samples are conventional sizes, but some are unconventional. Notebooks of any size can be made. First of all, it is necessary to make clear the size of the finished notebook product and the size of the inner core bar. When drawing the mosaic table paper, pay attention to that in addition to the net size of the setting mouth, the external cutting cut, the crown and the anchor must be drawn on the mosaic table paper, and the 3 ~ 4mm wool size must be added to the finished product size. In addition, according to the offset printing model, draw the offset printing table paper. If the notebook is printed with the opposite boot, draw the offset printing table paper. The first is to be symmetrical, and be able to make a copy of the original; Second, considering that the power supply voltage of the 4 electrical installation experimental machine is 3-phase 380V, and the electrical connection between the main body and the hydraulic control box is made by using the plug to connect the paper materials, careful calculation and ingenious arrangement should be made to reduce unnecessary paper waste

5. The inner core cover of the notebook is a 250 ~ 300g/m2 whiteboard veneer on the upper and lower sides. Its function is to enhance the hardness of the plastic cover. There are obvious differences between these businesses, which makes it neat. The spine of the book is pasted with a layer of kraft paper with good flexibility. When cutting, try to reduce the size error and the trace of knife flowers. When making a notebook, you must pay attention not to cut it blindly without color printing, hot stamping and heat sealing plastic molding on the plastic cover. The accurate size of the notebook inner core must be determined according to the finished size of the plastic skin. The finished size of the inner core should generally be about 2mm smaller than the size of the plastic skin cover. The best way is to cut several books and insert them into the plastic cover to try the appropriate degree of tightness and width. After the inner core size is coordinated with the plastic cover of the notebook, the finished products can be cut in large quantities

information source: printing technology

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