A method for processing bamboo knives
By processing bamboo knives, the environmental problems of plastic knives and the insufficient cutting ability of cork knives have been solved, achieving high-efficiency cutting capabilities for environmentally friendly cutting tools.
Patent Information
- Application Number
- CN202411202354.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2044-08-29
AI Technical Summary
Existing plastic knives are not environmentally friendly and have limited cutting capabilities, making them unsuitable for a variety of ingredients; cork knives have a softer structure and insufficient cutting ability.
Using bamboo as raw material, bamboo skin slices are formed by oblique cutting, and then split open to form semi-finished products with gradually decreasing thickness. These are then processed into blades and handles, and combined with semi-carbonization treatment to create serrated blades, enhancing structural strength and sharpness.
The bamboo knives manufactured from these knives degrade quickly, have high structural strength, and sharp blades, making them suitable for cutting a variety of ingredients. They are environmentally friendly and highly efficient at cutting.
Smart Images

Figure CN118906160B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of tableware, and specifically relates to a method for processing bamboo knives. Background Technology
[0002] Currently, most disposable Western-style dinner knives on the market are made of plastic. These plastic knives offer sufficient structural support due to their plastic material and adequate cutting force through their serrated edges, making them suitable for cutting red meat. However, the difficulty and cost of manually recycling plastic products, coupled with their long degradation time in nature, make the use of disposable plastic knives detrimental to environmental protection. Therefore, as society increasingly emphasizes environmental protection, disposable plastic knives are gradually being phased out.
[0003] To meet environmental protection needs, renewable material knives have been introduced to the market. These knives are mostly made from fast-growing softwoods such as birch. The specific manufacturing process involves slicing the softwood into thin slices, cutting serrations, and finally drying and pressing them into structural beams. However, these softwood knives have relatively soft blades and thicker edges, making them suitable for cutting softer ingredients such as cooked potatoes, butter, cheese, and some white meats. They are not suitable for cutting red meat, tendons, or tougher European breads. Summary of the Invention
[0004] To address the aforementioned problems, the present invention aims to provide a method for processing bamboo knives. Bamboo knives manufactured using this method are more environmentally friendly and can meet the cutting needs of a wider variety of ingredients.
[0005] To achieve the above objectives, the technical solution of the present invention is as follows.
[0006] A method for processing bamboo knives, characterized in that the method includes:
[0007] Select the material, cut the bamboo, and cut slices with the outer arc surface of the bamboo skin at an angle at the cross-section of the bamboo.
[0008] Semi-finished product processing involves splitting the slice in the middle to form two semi-finished products with gradually decreasing thickness from one side of the split to the other side and from one end of the cross-section to the other side. A blade made of bamboo skin is formed on the other side of the semi-finished product.
[0009] The blade-shaped processing involves machining one end of the semi-finished product to form a handle, thus creating a bamboo knife.
[0010] Bamboo knives processed using this method use bamboo, a renewable raw material. Compared to plastic knives, these bamboo knives can be reused as landfill waste after use, as they degrade quickly and improve soil quality. Compared to cork, bamboo is a herbaceous plant that develops through its root system without the need for sowing, and harvesting does not affect its subsequent growth, resulting in rapid maturation. Therefore, bamboo knives manufactured using this method are more environmentally friendly. Furthermore, the thicker back of the blade on one side and the thinner edge formed by the bamboo skin on the other side of the bamboo knife result in a stronger overall structure, a harder and sharper blade, making it suitable for cutting a wider variety of ingredients.
[0011] Furthermore, the method also includes: blade processing, processing the bamboo knife blade into a serrated shape. This serrated blade results in higher cutting efficiency.
[0012] Furthermore, bamboo knives include curved blades and flat blades. The curved blade is made of bamboo skin, while the flat blade is made of bamboo flesh. The blade edge is formed at the junction of the curved blade and the flat blade. During the blade processing, multiple continuous blade grooves are processed on one side of the flat blade of the bamboo knife to process the blade of the bamboo knife into a three-dimensional serrated shape.
[0013] Furthermore, the three-dimensional serrated blade includes tooth peaks and tooth valleys made of bamboo skin, with reinforcing sections formed between adjacent blade grooves to enhance the structural strength of the tooth peaks, the reinforcing sections corresponding to the tooth peaks. The tooth peaks and tooth valleys made of bamboo skin result in higher structural strength of the blade; and the reinforcing sections further enhance the structural strength of the tooth peaks.
[0014] Furthermore, the reinforcement section is triangular in shape as a whole.
[0015] Furthermore, the cutting groove is an arc-shaped groove.
[0016] Furthermore, the reinforcing part is made of bamboo flesh; or the reinforcing part is made of bamboo flesh and bamboo skin.
[0017] Furthermore, multiple consecutive cutting grooves are formed by grinding or laser cutting.
[0018] Furthermore, the method also includes a semi-carbonization treatment. After the blade is processed, the flat surface is semi-carbonized, which can increase the hardness and toughness of the bamboo knife.
[0019] Furthermore, during the semi-carbonization process, after the blade is coated with oil or not, the flat side of the blade is heated to 100-180℃ to carry out the semi-carbonization treatment, which can increase the hardness and toughness of bamboo knives.
[0020] The purpose of this invention is to produce a bamboo knife using this processing method. The raw material is bamboo, a renewable resource. Compared to plastic, the bamboo knife can be used as landfill material after use, as it degrades quickly and improves soil quality. Compared to cork, bamboo is a herbaceous plant that develops through its root system without the need for sowing; cutting it does not affect its subsequent growth, and it matures rapidly. Therefore, bamboo knives manufactured using this processing method are more environmentally friendly. Furthermore, because one side of the bamboo knife has a thicker back and the other side has a thinner blade formed from bamboo skin, the overall structure of the bamboo knife is stronger, the blade is harder, and it is sharper, meeting the cutting needs of a wider variety of ingredients. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of cutting slices from bamboo.
[0022] Figure 2 This is a schematic diagram of the slice structure.
[0023] Figure 3 This is a structural diagram of a semi-finished product.
[0024] Figure 4 This is a structural diagram of a bamboo knife.
[0025] Figure 5 This is a cross-sectional view of a bamboo knife before the blade groove is processed.
[0026] Figure 6 This is a cross-sectional view of a bamboo knife after the blade groove has been machined.
[0027] 1. Bamboo; 2. Cross-section; 3. Slice; 4. Semi-finished product; 5. Bamboo knife; 6. Blade; 7. Handle; 8. Curved blade; 9. Flat blade; 10. Tooth peak; 11. Tooth valley; 12. Blade groove; 13. Reinforcing part; A. Bamboo skin; B. Bamboo flesh. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0029] See Figure 1-6 This embodiment provides a method for processing bamboo knives, the method comprising:
[0030] Step 1: Select materials, cut bamboo 1, and make the cross section 2 of bamboo 1 perpendicular to its axis; at the cross section 2 of bamboo 1, cut a slice 3 with the outer arc surface of bamboo skin A at an acute angle relative to the axis. This slice 3 has a symmetrical structure.
[0031] Step 2: Processing of semi-finished product 4: The slice 3 is symmetrically cut in the middle to form two semi-finished products 4 with the thickness gradually decreasing from the upper side of the cut to the lower side away from the cut and the thickness gradually decreasing from the front end to the rear end of the cross section 2. A blade 6 made of bamboo skin A is formed on the lower side of the semi-finished product 4.
[0032] Step 3: Knife shaping. The front end of the semi-finished product 4 is ground and processed to form the handle 7, thus forming the bamboo knife 5;
[0033] Step 4: Processing the blade 6, processing the bamboo knife 5 blade 6 into a serrated shape;
[0034] Step 5: Semi-carbonization treatment. After the cutting edge 6 is machined, the flat blade surface 9 is semi-carbonized.
[0035] Specifically, bamboo skin is the outer layer of bamboo, while bamboo flesh is the structure beneath the outer layer.
[0036] In this embodiment, bamboo 1 is a mature, fast-growing bamboo, such as moso bamboo.
[0037] In this embodiment, the bamboo knife 5 includes an arc-shaped blade surface 8 and a flat blade surface 9. The arc-shaped blade surface 8 is made of bamboo skin A, and the flat blade surface 9 is made of bamboo flesh B. The blade edge 6 is formed at the junction of the arc-shaped blade surface 8 and the flat blade surface 9. During the processing of the blade edge 6, multiple continuous blade grooves 12 are processed on one side of the flat blade surface 9 of the bamboo knife 5 to process the blade edge 6 of the bamboo knife 5 into a three-dimensional serrated shape. Specifically, the blade grooves 12 are located at the junction of the flat blade surface 9 and the blade edge 6.
[0038] In this embodiment, the three-dimensional serrated blade 6 includes tooth peaks 10 and tooth valleys 11 made of bamboo skin A. A reinforcing part 13 is formed between adjacent blade grooves 12 to strengthen the structural strength of the tooth peaks 10. The reinforcing part 13 corresponds to the tooth peaks 10.
[0039] In this embodiment, the reinforcing part 13 is triangular in shape.
[0040] In this embodiment, the blade groove 12 is an arc-shaped groove.
[0041] In this embodiment, the reinforcing part 13 is composed of bamboo flesh B; or the reinforcing part 13 is composed of bamboo flesh B and bamboo skin A.
[0042] In this embodiment, multiple consecutive cutting grooves 12 are formed by grinding or laser cutting.
[0043] In this embodiment, during the semi-carbonization process, after the blade 6 is coated with oil, one side of the flat blade 9 is heated to 100-180°C for semi-carbonization.
[0044] In this embodiment, after the semi-carbonization process is completed, the bamboo knife 5 is dried, disinfected, and packaged.
[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A method for processing bamboo knives, characterized in that, The method includes: Select the material, cut the bamboo, and cut slices with the outer arc surface of the bamboo skin at an angle at the cross-section of the bamboo. Semi-finished product processing involves splitting the slice in the middle to form two semi-finished products with gradually decreasing thickness from one side of the split to the other side and from one end of the cross-section to the other side. A blade made of bamboo skin is formed on the other side of the semi-finished product. The blade-shaped processing involves machining one end of the semi-finished product to form a handle, thus creating a bamboo knife.
2. The processing method for a bamboo knife according to claim 1, characterized in that, The method also includes: blade processing, processing the blade of the bamboo knife into a serrated shape.
3. The processing method for a bamboo knife according to claim 2, characterized in that, Bamboo knives include curved blades and flat blades. The curved blade is made of bamboo skin, while the flat blade is made of bamboo flesh. The blade edge is formed at the junction of the curved blade and the flat blade. During the blade processing, multiple continuous blade grooves are processed on one side of the flat blade of the bamboo knife to process the blade edge into a three-dimensional serrated shape.
4. The processing method for a bamboo knife according to claim 3, characterized in that, The three-dimensional serrated blade includes tooth peaks made of bamboo skin and tooth valleys made of bamboo skin. A reinforcing part is formed between adjacent blade grooves to strengthen the tooth peak structure, and the reinforcing part corresponds to the tooth peak.
5. A method for processing a bamboo knife according to claim 3, characterized in that, The blade groove is an arc-shaped groove.
6. A method for processing a bamboo knife according to claim 3, characterized in that, Multiple consecutive cutting grooves are formed by grinding or laser cutting.
7. A method for processing a bamboo knife according to claim 4, characterized in that, The reinforcing section is triangular in shape.
8. A method for processing a bamboo knife according to claim 7, characterized in that, The reinforcing part is made of bamboo flesh; or the reinforcing part is made of bamboo flesh and bamboo skin.
9. A method for processing a bamboo knife according to claim 3, characterized in that, The method also includes: semi-carbonization treatment, in which the flat blade surface is semi-carbonized after the cutting edge is machined.
10. A method for processing a bamboo knife according to claim 9, characterized in that, During the carbonization process, after the blade is coated with oil or not, one side of the flat blade is heated to 100-180℃ for semi-carbonization.
Citation Information
Patent Citations
Processing method for bamboo knife tableware
CN111761680A
Portable bamboo cutter of cutting a sheet of paper
CN206011150U