How to evaluate the quality of paper laying of high speed paper placing machine?
Publish Time: 2024-08-02
The quality evaluation of paper laying of high speed paper placing machine is an important part to ensure the processing and use effect of paper.
First of all, flatness is a key indicator. High-quality paper laying should have no obvious undulations, wrinkles or curls on the surface. It can be detected by naked eye observation and flatness measuring instruments. If the paper is uneven, it may affect the subsequent printing, coating and other processes, resulting in a decline in the quality of the finished product. For example, problems such as uneven ink color and blurred patterns may occur during printing. Therefore, the high speed paper placing machine should be able to ensure that the paper remains flat during transportation and laying.
Secondly, alignment accuracy is also crucial. The edges between the papers should be neatly aligned, and the deviation should be controlled within a very small range. It can be evaluated by measuring the offset of the edge of the paper. If the paper is poorly aligned, problems such as unsightly appearance and inaccurate size will occur in applications such as binding books or making packaging boxes. For example, the pages of bound books may be uneven, affecting the reading experience and book quality.
Furthermore, the tension control of the paper affects the quality of paper laying. Appropriate tension can keep the paper stretched and not easily deformed. Excessive tension may cause the paper to break, while too little tension may cause the paper to loosen and wrinkle. The tension of the paper can be monitored and adjusted by devices such as tension sensors. For example, in some packaging industries that have extremely high requirements for paper quality, precise tension control can ensure that the packaging paper fits the product and plays a good protective role.
In addition, the cleanliness of the paper is also part of the evaluation of the quality of paper laying. High speed paper placing machine should try to avoid dust, oil and other impurities adhering to the paper during operation. Otherwise, it will affect the appearance and performance of the paper, especially for some high-end paper products such as art paper and specialty paper. At the same time, the humidity control of the paper should also be considered. The appropriate humidity can maintain the flexibility and strength of the paper and prevent the paper from being too dry or wet and affecting the quality. In short, the paper laying quality of the High speed paper placing machine can be accurately judged through a comprehensive evaluation of flatness, alignment accuracy, tension, cleanliness and other aspects.
