The blades of paper cutters are very important, and the new cutters are very knowledgeable in their use.
        The new blade equipped with the paper cutter needs to be used after the edge is cut. The new knife that has just been sharpened will sometimes have a cut and pull phenomenon during cutting. Many people think that it is a knife flower. In fact, this is a misunderstanding. , Because this pull-out phenomenon will disappear naturally as the cutting amount increases. Observed through the magnified environment, this is caused by the adhesion of the sharpened steel shavings to the blade, which is usually called a burr. The burr will automatically fall with the continuous action and friction of the blade, which is essentially different from the knife flower. Therefore, after the grinding is completed, in order to make the cutting edge sharper and smoother, after the cutting blade is sharpened, use a stone to sharpen the blade, and then use bamboo pieces (wood or plastic) to stay along the blade. The granular burrs on the blade are scraped off, and engine oil (rust prevention) is applied to the blade to prolong the service life of the blade and make the finished edge smoother. If you find that there are blades pulling paper on some of the cutting surfaces during the cutting work, you should polish it with oil stone at any time.

        On the one hand, the quality of the blade and whether it is reasonable will directly affect the cutting quality. On the other hand, the unreasonable sharpening angle and use will seriously damage the accuracy and life of the paper cutter. It seems to be a matter of detail, but if improperly operated, it will have a profound impact on the quality of the printed matter and production efficiency, and must be highly valued and concerned.