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What are the applications of flat edged circular knives in the field of paper processing
Flat edge round knife is the core cutting tool in the field of paper processing. With its flat and sharp edge, high cutting accuracy, and stable operation, it is suitable for various paper cutting, cutting, die-cutting and other processing processes. It is widely used in paper printing, packaging, office paper, household paper and other subdivision scenarios, balancing efficient mass production and cutting quality. The specific application scenarios and adaptation characteristics are as follows:Sources：www.kmjjw.cn | PublishDate：2025.12.29
1、 Household paper processing: essential core cutting tools suitable for large quantities of household paper products
Household paper is one of the main application scenarios for flat edged circular knives, suitable for slitting and cutting rolls of household paper to meet the standardization needs of daily use.
Roll paper cutting: used for cutting large rolls of raw paper into household small rolls of toilet paper. The flat mouth circular knife, in conjunction with the cutting machine, can correctly cut wide raw paper into narrow rolls of a certain width. The cutting edge is flat and free of burrs, and the edges of the cut roll paper are neat and not easily torn or frayed, ensuring a comfortable hand feel; Simultaneously supporting high-speed continuous cutting, suitable for the large-scale production needs of household paper.
Paper drawing/face towel cutting: In the paper drawing production line, a flat mouth circular knife is responsible for cutting the continuously embossed paper roll into single sheets or a certain number of layers of paper stacks. After cutting, the edges of the paper are flat and aligned, without misalignment or burrs, ensuring smooth paper drawing and controllable cutting accuracy, adapting to the size requirements of different specifications of paper drawing.
Kitchen paper/wet wipes cutting: Based on the thick material of kitchen paper and the liquid carrying characteristics of wet wipes, the flat and round blade edge has high hardness and strong wear resistance, and is not easily passivated during cutting. It can achieve clean and sharp cutting, avoid paper adhesion and edge damage, and adapt to the anti-corrosion requirements of liquid carrying paper, extending the service life of cutting tools.
2、 Packaging paper processing: ensuring packaging aesthetics and adaptability, suitable for industrial packaging and food packaging
Packaging paper requires high cutting accuracy and edge flatness. Flat mouth circular knives are suitable for cutting and slitting various types of packaging paper products, and are key tools for forming packaging paper products, covering the two core areas of industrial packaging and food packaging.
Carton and cardboard cutting: used for slitting and cutting corrugated cardboard and cowhide cardboard, cutting large-sized cardboard into the correct size blanks required for carton production. After cutting with a flat edge circular knife, the edges of the cardboard are straight and flat, without any broken edges or layers, ensuring the sealing and firmness of subsequent carton folding and bonding; Adapt to corrugated cardboard of different thicknesses, balancing cutting efficiency and accuracy.
Food packaging paper cutting: For food grade kraft paper, oil paper, baking paper, and food packaging film paper, the flat mouth round knife is made of food grade materials, with no blade residue during cutting, smooth edges without burrs, and avoiding food contamination; At the same time, it can be correctly cut into packaging paper rolls or sheets of a certain size, suitable for the processing needs of food packaging bags, packaging paper pads, baking oil paper, etc.
Gift wrapping paper/label paper slitting: used for slitting colored gift wrapping paper and self-adhesive label base paper. When cutting with a flat edge circular knife, it does not damage the printed pattern and film layer on the surface of the paper, and the edges are neat without serrations, ensuring the beauty of the packaging paper; The cutting accuracy can reach ± 0.1mm, which is suitable for the correct cutting of small-sized paper products such as label paper, and meets the needs of subsequent die-cutting and labeling.
3、 Office paper processing: adapted to standardized mass production, ensuring convenient office use
The specifications of office paper products are unified and the demand is high. The flat edged circular knife is suitable for cutting and slitting various types of office paper, ensuring the correct size and neat edges of the paper products, and adapting to the standardized use requirements of office scenes.
Copy paper/printing paper cutting: The core application is to cut large base paper into standard office paper such as A4, A3, B5, etc. The flat mouth circular knife can achieve simultaneous cutting of multiple layers of paper. After cutting, the edges of the paper stack are flat and aligned, without skew or burrs, and the paper is not easy to warp, ensuring smooth feeding during copying and printing, and high cutting efficiency, suitable for large-scale production of office paper.
Note paper/notebook inner page cutting: used for cutting note paper to a fixed length, cutting and trimming notebook inner pages. The flat edge is round and the blade edge is delicate, making it less prone to tearing or damage when cutting thin paper, ensuring that the note paper is easy to tear and the edges are neat; At the same time, it can correctly control the cutting size and adapt to the internal page requirements of different specifications of notebooks and notebooks.
Fax paper/cash register paper slitting: For the thermal sensitive paper materials of roll shaped fax paper and cash register paper, the flat edge circular knife cuts evenly without damaging the thermal sensitive coating. After slitting, the edge of the paper roll is flat, ensuring clear printing and smooth paper output; Suitable for the correct cutting of narrow roll paper to meet the needs of office and supermarket cash registers.
4、 Printing paper processing: Suitable for cutting, ensuring the quality of printed products
Printing paper products (such as books, brochures, and flyers) have strict requirements for cutting accuracy and edge smoothness. Flat edged circular knives undertake core processes such as slitting, trimming, and cutting, and are key cutting tools for post printing processing.
Book and brochure cutting: used for cutting and trimming the inner pages of books and brochures. A flat edged circular knife can correctly cut large printed paper pages, trimming off burrs and excess white space, making the page numbers and edges of books neat and uniform, without serrations or burrs, and improving the beauty and browsing feel of books; Support synchronous cutting of multi-layer paper sheets to improve processing efficiency before binding.
Billet/Poster Cutting: After printing, large promotional flyers and posters are cut into finished products of a certain size using a flat edged circular knife. After cutting, the edges are straight and flat, without any pattern damage or rough edges, ensuring the display effect of promotional materials; Simultaneously adapting to customized cutting requirements for posters and flyers of different sizes, with controllable accuracy.
Bill paper cutting: For bills such as invoices, receipts, and express delivery notes, a flat edged circular knife can achieve precise cutting to a certain length. After cutting, the edges of the bills are neat and suitable for subsequent coding, copying layer bonding, and other processes. Moreover, the anti-counterfeiting coating and copying coating of the bills are not damaged during cutting, ensuring their normal use.
5、 Special paper processing: adapted to niche needs, balancing precision and adaptability
In addition to conventional paper products, flat edged circular knives are also suitable for processing various types of special paper products, providing correct cutting solutions for the special materials and uses of special paper.
Xuan paper/calligraphy and painting paper cutting: Xuan paper and calligraphy and painting paper are lightweight, strong in toughness, with a flat and round blade and a sharp cutting force that is soft. When cutting, it is not easy to tear or wrinkle the edges, and the edges are flat and smooth. It is suitable for small cutting of calligraphy and painting paper and large cutting of Xuan paper, meeting the needs of calligraphy and painting creation and mounting.
Filter paper/test paper cutting: Industrial filter paper, medical test paper and other special paper products require high cutting accuracy. The flat mouth circular knife can correctly cut into narrow widths or sheets of a certain size, with no burrs or deformations on the cutting edge, ensuring the filtering effect of filter paper and the detection accuracy of test paper, and adapting to the strict requirements of industrial and medical fields.
Insulation paper/flame retardant paper cutting: used for cutting insulation paper and flame retardant paper in the electrical industry. The flat edged circular knife has high hardness and strong wear resistance, making it difficult to passivate when cutting thick special paper. The cutting edges are neat and without layering, ensuring the insulation performance of insulation paper and the protective performance of flame retardant paper, and adapting to the supporting needs of industrial electrical equipment.
6、 The adaptation advantages of flat mouth circular knives in the field of paper processing (core application value)
Excellent cutting quality: The cutting edge is smooth, and the edges of the paper after cutting are free of burrs, tearing edges, and serrations, with high flatness, suitable for the appearance and performance requirements of various paper products;
High cutting accuracy: The size tolerance can be controlled within a very small range, suitable for the correct cutting needs of standard and customized paper products, ensuring uniform size of paper products in the same batch;
Strong adaptability: It can adapt to thermal paper as thin as 0.01mm and corrugated cardboard as thick as several millimeters, meeting the cutting needs of different thicknesses and materials of paper;
Good durability: The tool has high hardness and wear resistance, suitable for high-speed continuous production scenarios in paper processing, reduces tool changing frequency, improves processing efficiency, and reduces overall costs.