Appearance quality and common paper diseases of th
2022-10-12- Detail
The appearance quality of printing paper and common paper diseases
the appearance quality of paper refers to the quality of paper that can be identified only by human senses without instruments and equipment. It can be divided into the appearance quality of the paper itself and the appearance quality of pieces of paper formed by sheets of paper or long strips of paper
no matter what kind of appearance quality affects the use of paper to varying degrees. Poor appearance quality will not only reduce the use value and printing yield of paper, but also make paper waste in serious cases. In addition, some serious appearance paper diseases in the paper, such as hard paper blocks, will also damage the printing plate and cots during printing, causing damage to the printing equipment. The appearance quality of paper is also closely related to its physical properties. For example, the smoothness and opacity of paper with obvious seersucker will also be affected
Structural characteristics and working principle of bending testing machinethe appearance quality inspection of paper should achieve the following three purposes:
check the finished quality of paper. It mainly includes: whether the shape of the piece of paper is good, whether the size is qualified, packaging quality and damage degree, etc
master the basic paper of paper. Including color, evenness, flexibility and tensile strength, smoothness and cleanliness
spot check to find out the approximate missing rate of lithographic paper (the percentage of paper with obvious paper defects in the total number of papers). And the rapid growth of high value-added niche chemicals in our product portfolio
but the weakness is more and more prominent: Mr. Li shared a total of 30000 yuan of stolen money, and the processing of chemical products is not deep
- ·How many lives did Canada’s COVID-19 Alert app sav
- ·Suu Kyi sentenced to 4 years in jail by Myanmar co
- ·Extradition case fatally flawed, says lawyer for H
- ·Immunocompromised patient exposed to COVID-19 at m
- ·Aberdeen in Euro boost as more than 5,000 fans bac
- ·Ronaldo closes in on goals record as draw with Fra
- ·Heart of our City- Michel Gauthier - Today News Po
- ·COVID-19 prompts young Chinese to write wills - To
LINK
Copyright © 2011 JIN SHI