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What are the applications of flat edged circular knives in the packaging industry
1、 Cutting typeSources：www.cssjlgj.com | PublishDate：2026.07.13
1. Adhesive packaging materials
BOPP sealing tape, masking paper, double-sided tape, foam tape, release paper strips. The entire large mother roll is divided into a certain width by a flat edged circular knife; The tungsten steel flat mouth round knife runs at high speed, with a smooth cut and no wire drawing on the adhesive layer.
2. Paper packaging materials
Slitting of kraft paper, corrugated paper strips, cardboard, copperplate paper, label backing paper, and courier face paper.
Narrow strip label: Adhesive label base paper divided into strips;
Corrugated matching: Corrugated cardboard strips are used to make corner protectors and paper partitions.
3. Plastic packaging film
Cutting of PE wrapping film, PET protective film, PVC shrink film, nylon film, and composite packaging film (raw material for food composite bags).
Soft film materials are preferred for thin flat edged round knives, with sharp cutting edges and no stretch wrinkles on the film incision.
2、 Cutting and cutting applications
1. Bag making industry
Cut horizontally during the production process of food packaging bags, express bags, and inner film bags. The cross cutting mechanism adopts a flat mouth circular knife for rotating cutting, continuously cutting the bag body at high speed.
2. foam packaging materials
EPE pearl cotton and bubble wrap strips. A flat edged circular knife cuts large rolls of bubble cotton into narrow strips for product lining and cushioning packaging.
3、 Cutting of supporting packaging and accessory products
1. Splitting of packing tape
PP plastic strapping, polyester strapping: Wide width raw materials are cut into standard width strapping with a flat mouth circular knife.
2. Raw materials for woven bags
PP woven fabric is divided into strips, and a round knife cuts the wide woven fabric into narrow strips, which are then made into woven bags.
4、 Segmenting product scenarios
Adhesive label industry: The label base paper and surface paper are divided into strips, and the flat edge circular knife ensures that the label edges are neat;
Gift packaging: Cut silk ribbon and packaging ribbon;
Cutting of raw materials for paper corner protectors: After multi-layer composite of thick kraft paper, use a thick flat edged circular knife to cut it into strips.
Different blade selection
Ordinary paper and tape: SKD-11 flat mouth round knife, high cost-effectiveness;
Thin film, adhesive: tungsten steel hard alloy flat mouth round knife, wear-resistant, long-term high-speed production;
Thick cardboard and packing tape: made of high-speed steel material with a flat edged round knife, resistant to impact.