A multi-layer non-stick cookware
By using a multi-layered non-stick cookware with a scaly structure and a multi-layered oil film design, the problem of insufficient coating wear resistance is solved, achieving long-lasting non-stick and wear resistance, and providing dual protection of physical non-stick and chemical non-stick properties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN OOU SMART HEALTHY HOME CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-14
AI Technical Summary
The coating material of existing non-stick pans is not wear-resistant enough, and is prone to peeling and scratches, resulting in short-lived non-stick performance and inability to be used for a long time.
It adopts a multi-layer non-stick structure with a scale-like structure on the inner surface, including recessed and raised parts. Combined with oxide layers and melt-blown layers of different thicknesses and microporous structures, it forms a three-level non-stick structure, which reduces the contact area with food and maintains the non-stick performance through the mutual fusion of oil film layers.
It significantly improves the non-stick and wear-resistant properties of cookware, achieving dual protection of physical non-stick and chemical non-stick properties, and extending the service life of cookware.
Smart Images
Figure CN224483715U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cookware technology, specifically to a multi-layer non-stick cookware. Background Technology
[0002] Most non-stick pans currently use a single-layer non-stick coating process, but this coating material is not wear-resistant enough and is prone to peeling off after long-term use. Furthermore, it is easily scratched by friction from metal spatulas or hard food, causing the coating to peel off more quickly. This results in a short lifespan for the non-stick coating, causing the non-stick performance of the pan to gradually deteriorate or even disappear. Utility Model Content
[0003] To overcome the shortcomings of the prior art, this application provides a multi-layer non-stick cookware, the specific technical solution of which is as follows:
[0004] A multi-layer non-stick cookware includes at least two non-stick layers, which are stacked sequentially to form a non-stick pan body. The inner surface of the non-stick pan body has a scale-like structure extending from the center to the edge of the non-stick pan body. The scale-like structure includes a plurality of recesses and protrusions formed between the recesses, the recesses and protrusions cooperating to reduce the contact area with the food to be cooked.
[0005] In one specific embodiment, the total area of all the recesses on the non-stick pan body is greater than the total area of all the protrusions on the non-stick pan body.
[0006] In one specific embodiment, the ratio of the distance from the edge of the scale structure to the center of the scale structure to the distance from the edge of the non-stick pan body to the center of the non-stick pan body is between 0.7 and 0.9.
[0007] In one specific embodiment, the cross-sectional shape of the recess includes ellipse, circle, square, annular, rhombus or irregular shape.
[0008] In one specific embodiment, the plurality of recesses are arranged in a concentric ring, or in a radial arrangement, or in a streamlined arrangement, or in a linear arrangement.
[0009] In one specific embodiment, the plurality of recesses are axially symmetrical and / or centrally symmetrical on the inner surface of the non-stick pan body; or the plurality of recesses are asymmetrically distributed on the inner surface of the non-stick pan body.
[0010] In one specific embodiment, at least two non-stick layers include a first non-stick layer, a second non-stick layer, and a third non-stick layer, which are stacked sequentially; the thicknesses of the first non-stick layer, the second non-stick layer, and the third non-stick layer are all different.
[0011] In one specific embodiment, the first non-stick layer includes a substrate having an oxide layer and a first oil film layer fused together on the substrate, the second non-stick layer includes a melt-blown layer and a second oil film layer fused together, and the third non-stick layer includes a third oil film layer.
[0012] In one specific embodiment, both the oxide layer and the sprayed layer have microporous structures. The microporous structure of the oxide layer is used to allow oil molecules from the first oil film layer to penetrate and fuse with the oxide layer; the microporous structure of the sprayed layer is used to allow oil molecules from the second oil film layer to penetrate and fuse with the sprayed layer.
[0013] In one specific embodiment, the microporous structure of the oxide layer includes a plurality of randomly arranged first pores; the microporous structure of the melt-blown layer includes a plurality of randomly arranged second pores, wherein the pore diameter of the second pores is larger than the pore diameter of the first pores.
[0014] This application has at least the following beneficial effects:
[0015] This application relates to the field of cookware technology, specifically providing a multi-layer non-stick cookware, comprising at least two non-stick layers, which are stacked sequentially to form a non-stick pan body. The inner surface of the non-stick pan body has a scaly structure extending from the center to the edge. The scaly structure includes multiple recesses and protrusions formed between the recesses, which cooperate to reduce the contact area with the food to be cooked. This application improves the non-stick properties of the cookware by using at least two stacked non-stick layers to form the non-stick pan body. Furthermore, the scaly structure of the non-stick pan body reduces the contact area between the cookware surface and food, achieving dual protection of physical and chemical non-stick properties, thereby further enhancing the cookware's non-stick performance. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 Illustration of multi-layer non-stick cookware Figure 1 ;
[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0019] Figure 3 for Figure 1 Top view corresponding to point A in the middle;
[0020] Figure 4 This is a schematic diagram of the first, second, and third non-stick layers of a multi-layered non-stick cookware at a microscopic level.
[0021] Figure 5 Illustration of multi-layer non-stick cookware Figure 2 .
[0022] Figure label:
[0023] 1-Non-stick pan body;
[0024] 2-Non-stick layer; 3-Scaled structure;
[0025] 21-First non-stick layer; 22-Second non-stick layer; 23-Third non-stick layer;
[0026] 211 - First pore; 221 - Second pore; 231 - Oil film layer;
[0027] 31-Depression; 32-Protrusion. Detailed Implementation
[0028] Various embodiments of this application will be described more fully below. This application may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of this application to the specific embodiments disclosed herein, but rather this application should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of this application.
[0029] In the following, the terms “comprising” or “may include” as used in the various embodiments of this application indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in the various embodiments of this application, the terms “comprising,” “having,” and their cognates are intended only to indicate a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or the possibility of adding one or more combinations of features, numbers, steps, operations, elements, components, or combinations of the foregoing.
[0030] In various embodiments of this application, the expression "or" or "at least one of A and / or B" includes any combination or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both A and B.
[0031] The terms used in the various embodiments of this application (such as "first," "second," etc.) may modify various constituent elements in the various embodiments, but do not limit the corresponding constituent elements. For example, the above terms do not limit the order and / or importance of the elements. The above terms are only used for the purpose of distinguishing one element from other elements. For example, a first user device and a second user device refer to different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.
[0032] like Figure 1-3 As shown, this application relates to the field of cookware technology, specifically providing a multi-layer non-stick cookware, including at least two non-stick layers 2, which are stacked sequentially to form a non-stick pan body 1. The inner surface of the non-stick pan body 1 has a scale-like structure 3, which extends from the center to the edge. The scale-like structure 3 includes multiple recesses 31 and protrusions 32 formed between the recesses 31. The recesses 31 and protrusions 32 cooperate to reduce the contact area with the food to be cooked. This application improves the non-stick properties of the cookware by stacking at least two non-stick layers 2 to form the non-stick pan body 1. Furthermore, the scale-like structure 3 on the non-stick pan body 1 reduces the contact area between the cookware surface and the food. During cooking, the oil from the food can penetrate the recesses. This multi-layer non-stick cookware achieves dual protection of physical non-stick and chemical non-stick properties, thereby further improving the non-stick properties of the cookware.
[0033] The area of all recesses 31 on the non-stick pan body 1 is greater than the area of all protrusions 32 on the non-stick pan body 1. This application achieves this by having a larger area of recesses 31 on the non-stick pan body 1 than protrusions 32, allowing the protrusions 32 to better support the food to be cooked. The recesses 31 between the protrusions 32 are separated from the food to be cooked, thereby reducing the contact area between the pan surface and the food. Furthermore, during cooking, the oil from the food can enter the recesses 31, further enhancing the pan's non-stick properties.
[0034] like Figure 5As shown, the ratio of the distance d1 from the edge of the scale structure 3 to the center of the scale structure 3 to the distance d2 from the edge of the non-stick pan body 1 to the center of the non-stick pan body 1 is between 0.7 and 0.9. This application, through the design of the distribution position and size of the scale structure 3, enables the central heating area to achieve a good anti-stick effect.
[0035] In this application, the scale-like structure 3 accounts for 60%-80% of the area of the non-stick pan body 1 and the area of the inner surface of the non-stick pan body 1. By designing the scale-like structure 3 to account for 60%-80% of the area of the non-stick pan body 1 and the area of the inner surface of the non-stick pan body 1, this application enables the central heating area to achieve a good anti-stick effect.
[0036] The cross-sectional shape of the recess 31 includes elliptical, circular, square, annular, rhomboid, or irregular shapes. This application achieves precise control of the non-stick performance through recesses 31 with different cross-sectional shapes to adapt to different foods to be cooked and cooking methods. For example, the annular recess 31 is suitable for long-term grilling of meat, and the oil can be better stored in the recess 31.
[0037] Multiple recesses 31 are arranged in a concentric ring, or in a radial pattern, or in a streamlined shape, or in a linear pattern. This application improves heat conduction and non-stick properties through the unique arrangement of the multiple recesses 31, and different arrangements can be adapted to different foods to be cooked.
[0038] In one embodiment, such as Figure 3 As shown, multiple recesses 31 are arranged in a concentric ring, allowing heat to spread in a concentric circle. The multiple concentrically arranged recesses 31 and the concentrically arranged protrusions 32 work together to reduce the contact area between the surface of the cookware and the food, preventing sticking. This is suitable for delicate dishes that require even heating, such as soft-boiled eggs and soufflés.
[0039] In another embodiment, the multiple recesses 31 are arranged in a streamlined manner, which can reduce the frictional resistance between the ingredients and the pot wall when stir-frying, making it suitable for Chinese stir-fries that require frequent stirring.
[0040] Multiple recesses 31 are axially symmetrical and / or centrally symmetrical on the inner surface of the non-stick pan body 1; or multiple recesses 31 are asymmetrically distributed on the inner surface of the non-stick pan body 1. This application, through the symmetrical and asymmetrical arrangement of the recesses 31, can adapt to various cooking foods or cooking methods, and greatly improves the non-stick performance.
[0041] like Figure 2As shown, at least two non-stick layers 2 include a first non-stick layer 21, a second non-stick layer 22, and a third non-stick layer 23, which are stacked sequentially. The thicknesses of the first non-stick layer 21, the second non-stick layer 22, and the third non-stick layer 23 are all different. By setting the first non-stick layer 21, the second non-stick layer 22, and the third non-stick layer 23 with different thicknesses, this application overcomes the limitations of surface adhesion of traditional single-layer oil films and can achieve long-term non-sticking through layered oil storage.
[0042] The first non-stick layer 21 includes a substrate with an fused oxide layer and a first oil film layer on the substrate; the second non-stick layer 22 includes a fused melt-blown layer and a second oil film layer; and the third non-stick layer 23 includes a third oil film layer. This application forms a three-tiered anti-stick structure of "surface oil film - middle oil reservoir - bottom solid oil." When the surface oil film wears down, the next layer of oil reservoir can slowly replenish the surface, maintaining the anti-stick performance and improving the anti-stick effect.
[0043] Specifically, the substrate of the first non-stick layer 21 is a molded iron pot body. The molded iron pot body forms an oxide layer under high temperature and uniform heating. The oxide layer is a relatively dense iron oxide layer with a thickness of 5-15 micrometers. Its density and hardness are relatively high compared to Fe2O3. The oxide layer and the first oil film layer are integrated with each other, so that the first non-stick layer 21 constructs an organic and inorganic cross-linked protective system, thereby significantly improving the non-stick properties, wear resistance and corrosion resistance of the cookware.
[0044] The second non-stick layer 22 is a sprayed layer formed by spraying powder onto the oxide layer to create a dense sprayed layer with a thickness of 20-30 micrometers. The sprayed layer and the second oil film layer are integrated to give full play to the high hardness of the metal, and the oil film also buffers mechanical stress and chemical corrosion, thereby improving the non-stick properties, wear resistance, and corrosion resistance of the cookware.
[0045] In this embodiment, the scale-like structure 3 formed on the inner surface of the non-stick pan body 1 includes the scale-like structure 3 of the first non-stick layer 21, the scale-like structure 3 of the second non-stick layer 22, and the scale-like structure 3 of the third non-stick layer 23. Specifically, the molded iron pan body of the first non-stick layer 21 forms an oxide layer under high temperature and uniform heating, and is forged to form the scale-like structure 3 of the first non-stick layer 21; then, a molten powder is fused and an oil layer is applied to the scale-like structure 3 of the first non-stick layer 21, so that it has the scale-like structure 3 of the second non-stick layer 22 and the scale-like structure 3 of the third non-stick layer 23.
[0046] Specifically, both the oxide layer and the sprayed layer have microporous structures. The microporous structure of the oxide layer allows oil molecules from the first oil film layer to penetrate and fuse with the oxide layer; the microporous structure of the sprayed layer allows oil molecules from the second oil film layer to penetrate and fuse with the sprayed layer. This application utilizes the microporous structures of the oxide layer and the sprayed layer to allow oil molecules to penetrate layer by layer, thereby forming a third oil film layer on the surface, a fused oxide layer, a first oil film layer, a fused sprayed layer, and a second oil film layer. This forms a three-tiered anti-sticking structure: a surface oil film, a middle oil storage layer, and a bottom solid oil layer. When the surface oil film wears down, the next layer of oil storage can slowly replenish the surface, maintaining the anti-sticking performance and improving the anti-sticking effect.
[0047] like Figure 4 As shown, the microporous structure of the oxide layer includes multiple randomly arranged first pores 211; the microporous structure of the melt-blown layer includes multiple randomly arranged second pores 221, the diameter of the second pores 221 being larger than the diameter of the first pores 211. This application uses the first pores 211 to achieve oil fixation in the oxide layer and the second pores 221 to achieve oil storage in the melt-blown layer. The larger diameter of the second pores 221 compared to the first pores 211 is a more rational design. When the surface oil film wears down, the lower oil storage layer can be more evenly replenished to the surface, maintaining anti-sticking properties.
[0048] It should be noted that, in this application, unless otherwise explicitly specified and defined, terms such as "installation," "connection," and "fixation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0049] In this application, those skilled in the art should understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings and are only for the purpose of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0050] The terminology used in the various embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the various embodiments of this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this application pertain. The terms (such as those defined in a generally used dictionary) are to be interpreted as having the same meaning as in the context of the relevant technical field and are not to be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this application.
[0051] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of a preferred embodiment, and the modules or processes shown in the drawings are not necessarily essential for implementing this application.
[0052] Those skilled in the art will understand that the modules in the apparatus of the implementation scenario can be distributed within the apparatus of the implementation scenario as described, or they can be located in one or more apparatuses different from this implementation scenario, with corresponding changes. The modules of the above-described implementation scenario can be combined into one module, or they can be further divided into multiple sub-modules.
[0053] The serial numbers in this application are for descriptive purposes only and do not represent the superiority or inferiority of the implementation scenario.
[0054] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A multi-layer non-stick cookware, characterized in that, The pan includes at least two non-stick layers, which are stacked sequentially to form a non-stick pan body. The inner surface of the non-stick pan body has a scale-like structure that extends from the center of the pan body to the edge. The scale-like structure includes multiple recesses and protrusions formed between the recesses. The recesses and protrusions cooperate to reduce the contact area with the food to be cooked.
2. The multi-layer non-stick cookware according to claim 1, characterized in that, The total area of all the recesses on the non-stick pan is greater than the total area of all the protrusions on the non-stick pan.
3. The multi-layer non-stick cookware according to claim 1, characterized in that, The ratio of the distance from the edge of the scale-like structure to the center of the scale-like structure to the distance from the edge of the non-stick pan to the center of the non-stick pan is between 0.7 and 0.
9.
4. The multi-layer non-stick cookware according to claim 1, characterized in that, The cross-sectional shape of the recess includes elliptical, circular, square, annular, rhomboid, or irregular shapes.
5. The multi-layer non-stick cookware according to claim 1, characterized in that, The multiple recesses are arranged in a concentric ring, or in a radial arrangement, or in a streamlined arrangement, or in a linear arrangement.
6. The multi-layer non-stick cookware according to claim 1, characterized in that, The plurality of said recesses are axially symmetrical and / or centrally symmetrical on the inner surface of the non-stick pan body; or the plurality of said recesses are asymmetrically distributed on the inner surface of the non-stick pan body.
7. The multi-layer non-stick cookware according to claim 1, characterized in that, The non-stick layer comprises a first non-stick layer, a second non-stick layer, and a third non-stick layer, which are stacked sequentially; the thicknesses of the first non-stick layer, the second non-stick layer, and the third non-stick layer are all different.
8. The multi-layer non-stick cookware according to claim 7, characterized in that, The first non-stick layer includes a substrate, on which an oxide layer and a first oil film layer are fused together; the second non-stick layer includes a melt-blown layer and a second oil film layer; and the third non-stick layer includes a third oil film layer.
9. The multi-layer non-stick cookware according to claim 8, characterized in that, Both the oxide layer and the sprayed layer have microporous structures. The microporous structure of the oxide layer is used to allow oil molecules from the first oil film layer to penetrate and fuse with the oxide layer. The microporous structure of the sprayed layer is used to allow oil molecules from the second oil film layer to penetrate and fuse with the sprayed layer.
10. The multi-layer non-stick cookware according to claim 9, characterized in that, The microporous structure of the oxide layer includes a plurality of randomly arranged first pores; the microporous structure of the melt-blown layer includes a plurality of randomly arranged second pores, wherein the pore diameter of the second pores is larger than that of the first pores.