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causes of the swelling&shrinking of wet kraft paper tape?

Article provenance:未知 Popularity:Time:2020-08-05 08:31
We all found that the wet kraft paper tape has the problem of shrinkage, but many people do not know this problem very well, do not know what causes the kraft paper tape to shrink. For kraft paper tape, there are many reasons that can lead to its rise and contraction. Serious cases will have some bad effects on printing and packaging. Here we will give you a specific introduction to the causes of kraft paper tape?
 
Different regions: the environmental characteristics of each place are different. If the place of origin of kraft paper tape is different from that of printing and packaging factory, the kraft paper tape will be affected by temperature and climate during transportation or storage.
 
Storage time is too long: not only food will be expired, paper also has a shelf life. When the kraft paper tape is stored for a long time, it will rise and shrink, which means that the kraft paper tape has expired and can not be used in input packaging printing.
 
Cross use moisture infection: the paper itself has good water absorption. Some businesses do not properly store the kraft paper tape that has not been opened before, which causes the kraft paper tape to be damped. Then put the damped kraft paper tape into the new paper and use it at the same time, which will cause the new kraft paper tape to receive a certain impact. Therefore, we must use a certain amount of kraft paper tape We should grasp it well.
 
Mixed batch of different kraft paper tapes: when many businesses use kraft paper tape, the number of kraft paper tape is not enough. At this time, if the kraft paper tapes of different brands are added for mixed printing, the kraft paper tape will rise and shrink.
 
The influence of printing environment: the causes of kraft paper tape shrinkage are printing machine temperature, pre press and post press workshop temperature, environment and printing technology.

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