In recent years, the children's paperboard book market potential is huge, major book printing enterprises have entered the field. However, there is one type of quality problem that causes many booklet printing enterprises headache, namely, the pages are warped and deformed.
The production process of children's paperboard books is generally printing → surface finishing → creasing → folding → page matching → laminating → cutting three edges → rounding. The factors that lead to the warping and deformation of children's cardboard books are many, including process design, processing and production methods, materials, environment and packaging methods, etc. The warping and deformation of children's cardboard books can be divided into two kinds of flat warping and bending deformation in terms of appearance.
In the production process to control the moisture content of the cardboard, to avoid warping deformation of the finished book is very important. In general, the production process, must maintain a stable water content of cardboard, generally should be controlled at 8% to 12%, especially before packaging the finished book, if the measurement of its water content is not in this range, should be palletized and placed in a constant temperature and humidity environment to keep the water content of the cardboard book stable.
WT-009MQJ die cutting machine is designed for die cutting of various book shapes and holes, widely applied in manufacturing children’s books, board books, notebooks, saddle stitch books, paperback books, hardcover book, etc.