Bionic bait with PVC (Polyvinyl Chloride) glue-dripping composite layer and preparation process of bionic bait

Abstract

The invention discloses bionic bait with a PVC (polyvinyl chloride) glue-dripping composite layer and a preparation process of the bionic bait, and relates to the technical field of fishing gear, the bionic bait comprises a base body, the surface of the base body is sequentially covered with the PVC composite layer composed of a glue-dripping bottom layer, a color layer and a glue-dripping surface layer, the total thickness of the PVC composite layer is 0.5-2 mm, the thickness of the glue-dripping bottom layer is 0.2-1 mm, and the thickness of the glue-dripping surface layer is 0.3-1 mm. The PVC composite layer composed of the glue dripping bottom layer, the color layer and the glue dripping surface layer is constructed on the surface of the base body, the simulation effect and durability of the bionic bait are remarkably improved, and the problems that a traditional bait coating is prone to falling off, monotonous in color and poor in durability are fundamentally solved; the bait can still keep a good fish luring effect in a complex fishing environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fishing gear, in particular to a bionic fishing lure with a PVC drop glue composite layer and a preparation process thereof. BACKGROUND

[0002] In the field of lure fishing, the simulation effect and durability of fishing lures have always been key factors affecting fishing efficiency. Traditional bionic fishing lures usually use paint spraying or single material injection molding process. Although these processes can achieve basic appearance presentation, they have obvious defects in actual use. The paint coating has weak adhesion to the substrate, and is easily detached when colliding with obstacles during casting and recovery, resulting in distortion of the appearance of the fishing lure and reducing the attractiveness to fish. The fishing lure made of single material injection molding often has monotonous color, cannot simulate the color gradient and texture details of real aquatic organisms, and has high material hardness, which is easy to damage the substrate after collision, and the service life is generally short.

[0003] With the popularization and professional development of fishing, the demand for high-performance bionic fishing lures is increasingly urgent. In the prior art, some improvement schemes try to improve durability by increasing coating thickness or changing coating type, but the technical problem of color and material integration has not been solved, and the thickening of the coating will change the weight distribution and water resistance characteristics of the fishing lure, affecting the casting feel and swimming posture performance. In addition, the limitations of traditional processes in terms of pigment adhesion, environmental resistance, etc. also make it difficult to meet the use requirements in complex water areas. Developing new bionic fishing lures with high simulation, strong durability and wide environmental adaptability and their preparation process has become a technical bottleneck that needs to be broken through in the industry.

[0004] In view of the problems in the related art, no effective solution has been proposed so far. SUMMARY

[0005] In view of the problems in the related art, the present application proposes a bionic fishing lure with a PVC drop glue composite layer and a preparation process thereof to overcome the above technical problems existing in the prior art.

[0006] The technical scheme of the present application is as follows:

[0007] A bionic fishing lure with a PVC drop glue composite layer, comprising: a substrate, the surface of the substrate is covered with a PVC composite layer composed of a drop glue bottom layer, a color layer and a drop glue surface layer in sequence, the total thickness of the PVC composite layer is 0.5-2mm, wherein the thickness of the drop glue bottom layer is 0.2-1mm, and the thickness of the drop glue surface layer is 0.3-1mm.

[0008] Further, the substrate includes any one of a metal substrate or a plastic substrate.

[0009] Further, the material of the metal base is copper alloy, lead alloy or zinc alloy, the head surface of the metal base is treated by electroplating nickel, and a sealing groove with a width of 0.5mm is arranged at the joint of the head and the PVC composite layer.

[0010] Further, the material of the plastic base is ABS plastic.

[0011] Further, the color layer is made of water-based pigment, and a fluorescent agent is added in the color layer.

[0012] Further, the glue dropping bottom layer is made of PVC resin and plasticizer mixed at a ratio of 3:1, and the plasticizer is dioctyl phthalate.

[0013] Further, the glue dropping surface layer is made of PVC resin with 2-3% curing agent, and the curing agent is dibenzoyl peroxide.

[0014] Another aspect of the present application is:

[0015] A preparation process of the bionic fish bait with a PVC glue dropping composite layer, which is used for the preparation of the bionic fish bait with a PVC glue dropping composite layer, and comprises the following steps:

[0016] The surface of the base is pretreated, including cleaning the surface of the base by using acetone or alcohol, and then polishing by using 200-400 mesh sandpaper to a surface roughness Ra value of 1.6-3.2 μm;

[0017] The glue dropping bottom layer is prepared, the PVC resin and the plasticizer are mixed at a ratio of 3:1, heated and stirred at 60°C for 10 minutes, then coated on the pretreated surface of the base to form a glue dropping bottom layer with a thickness of 0.2-1mm, and left to stand at room temperature for 30 minutes;

[0018] The color layer is constructed, including constructing the color layer on the glue dropping bottom layer by using a pad printing process or a spraying process;

[0019] The glue dropping surface layer is prepared, 2-3% curing agent is added in the PVC resin, heated and stirred at 70°C for 5 minutes, and then coated on the surface of the color layer by using a rolling process to form a glue dropping surface layer with a thickness of 0.3-1mm;

[0020] The curing treatment is performed, the base with the coated glue dropping surface layer is placed in an environment with a temperature of 50-70°C and a humidity of ≤60% RH for curing for 1.5-3 hours, and the vacuum degree is controlled to be-0.08 MPa for defoaming treatment during the curing process to form a finished product.

[0021] The pad printing process comprises using a steel plate with a mesh of 200-300.

[0022] The spraying process comprises: controlling the pressure of the spray gun to be 0.3-0.5 MPa, and drying the construction at a temperature of 50 DEG C for 15-20 minutes after the construction is completed.

[0023] The beneficial effects of the present application are:

[0024] The present application significantly improves the simulation effect and durability of the bionic bait by constructing a PVC composite layer composed of a drop glue bottom layer, a color layer and a drop glue surface layer on the surface of the base. The drop glue bottom layer has good bonding force with the base, which can effectively prevent the composite layer from falling off; the color layer uses water-based pigments and adds fluorescent agent, which can simulate the color gradient and reflective properties of real aquatic organisms, enhancing the attraction to fish; the drop glue surface layer provides a wear-resistant and impact-resistant protective barrier for the bait, so that it is not easy to be damaged in appearance due to collision during casting and recovery. This multi-layer composite structure design fundamentally solves the problems of easy peeling, monotonous color and poor durability of the traditional bait coating, so that the bait can still maintain good fish attracting effect in complex fishing environment. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 is a structural schematic diagram of a bionic bait with a PVC drop glue composite layer according to an embodiment of the present application;

[0027] Figure 2 is Figure 1 is a sectional view of A-A in

[0028] Figure 3 is a flowchart of a preparation process of a bionic bait with a PVC drop glue composite layer according to an embodiment of the present application;

[0029] Figure 4 is a physical schematic diagram of a bionic bait with a PVC drop glue composite layer according to an embodiment of the present application. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0031] According to an embodiment of the present application, a bionic fish bait with PVC drop glue composite layer is provided.

[0032] As shown in Figures 1-2 , Figure 4 , the bionic fish bait with PVC drop glue composite layer according to the embodiment of the present application comprises a base body 1, the surface of the base body 1 is sequentially covered by a PVC composite layer composed of a drop glue bottom layer 2, a color layer 3 and a drop glue surface layer 4, and the total thickness of the PVC composite layer is 0.5-2mm, wherein the thickness of the drop glue bottom layer 2 is 0.2-1mm, and the thickness of the drop glue surface layer 4 is 0.3-1mm.

[0033] In addition, the base body 1 comprises any one of a metal base body or a plastic base body. The metal base body is made of copper alloy, lead alloy or zinc alloy, the surface of the head part 5 of the metal base body is treated by electroplating nickel, and a sealing groove with a width of 0.5mm is arranged at the joint between the head part 5 and the PVC composite layer. The plastic base body is made of ABS plastic.

[0034] In addition, the color layer 3 is made of water-based paint, and a fluorescent agent is added to the color layer 3. The drop glue bottom layer 2 is made by mixing PVC resin and plasticizer in a ratio of 3:1, and the plasticizer is dioctyl phthalate. The drop glue surface layer 4 is made of PVC resin with 2-3% curing agent, and the curing agent is dibenzoyl peroxide.

[0035] According to an embodiment of the present application, a preparation process of a bionic fish bait with PVC drop glue composite layer is provided.

[0036] As shown in Figure 3 , the preparation process of the bionic fish bait with PVC drop glue composite layer is used for the preparation of the bionic fish bait with PVC drop glue composite layer described above, and comprises the following steps:

[0037] The surface of the base body is pretreated in advance, including cleaning the surface of the base body with acetone or alcohol, and then polishing with 200-400 mesh sandpaper to a surface roughness Ra value of 1.6-3.2μm;

[0038] The drop glue bottom layer is prepared, PVC resin and plasticizer are mixed in a ratio of 3:1, heated and stirred at 60℃ for 10 minutes, then coated on the pretreated surface of the base body to form a drop glue bottom layer with a thickness of 0.2-1mm, and left to air at room temperature for 30 minutes;

[0039] The color layer is constructed, including constructing the color layer on the drop glue bottom layer by pad printing process or spraying process;

[0040] A drop glue surface layer is prepared, 2-3% of a curing agent is added to PVC resin, heated and stirred at 70 DEG C for 5 minutes, and then coated on the surface of the color layer by using a rolling coating process to form a drop glue surface layer with a thickness of 0.3-1 mm;

[0041] The substrate coated with the drop glue surface layer 4 is subjected to a curing treatment in an environment with a temperature of 50-70 DEG C and a humidity of ≤60% RH for 1.5-3 hours, and a vacuum degree of-0.08 MPa is controlled during the curing process to perform a defoaming treatment, thereby forming a finished product.

[0042] In the pad printing process, a steel plate with a mesh of 200-300 is used. In the spraying process, the pressure of the spray gun is controlled to be 0.3-0.5 MPa, and after the construction is completed, the product is dried at a temperature of 50 DEG C for 15-20 minutes.

[0043] By means of the above process, the present application ensures the close combination between the PVC composite layer and the substrate and the coordinated performance between the layers by pretreating the surface of the substrate and accurately controlling the proportioning and preparation parameters of the materials of the layers. The pretreatment process increases the roughness of the surface of the substrate and enhances the adhesion of the drop glue bottom layer 2. The step-by-step preparation and curing process of the drop glue bottom layer 2, the color layer 3 and the drop glue surface layer 4 ensures the uniformity of the thickness and the structural stability of the composite layer. In addition, the vacuum defoaming treatment during the curing process effectively avoids the generation of bubbles, further improving the quality of the fish bait. The preparation process is simple and controllable, and not only can realize the efficient production of the bionic fish bait, but also provides reliable technical support for the optimization of the performance of the fish bait, promoting the progress of the fishing gear technology field.

[0044] In addition, in a specific implementation scenario, a metal bionic fish bait for sea fishing is prepared according to the preparation process of the present application, and the specific steps are as follows:

[0045] An aluminum alloy substrate 6061-T6 is taken in advance, cleaned with acetone and polished with 320 mesh sandpaper. The PVC bottom layer glue resin is prepared by mixing a plasticizer at a ratio of 3:1, heated at 60 DEG C for 5 minutes, coated to a thickness of 0.2 mm, and air-dried at room temperature for 30 minutes. A pad printing process is used to print the tuna pattern, and the pigment contains 3% fluorescent whitening agent, which is dried at 50 DEG C for 18 minutes. The surface glue is added with 2.5% dibenzoyl peroxide, stirred at 70 DEG C for 3 minutes, and rolled to a thickness of 0.3 mm. Curing is performed at 60 DEG C and a humidity of 50% RH for 2 hours, and the vacuum degree is-0.08 MPa.

[0046] In the detection, the 5B test and the salt spray test are performed, and no abnormality is found.

[0047] In addition, in a specific implementation scenario, a plastic bionic fish bait for freshwater fishing is prepared according to the preparation process of the present application, and the specific steps are as follows:

[0048] Pre-cleaned with alcohol for ABS plastic base, sanded with 280 grit sandpaper to Ra = 2.0 μm; primer coating 0.15 mm, 25 minutes at room temperature; air spray gradually changing color simulation of sea bass body color, pigment solid content 25%, dried at 50°C for 15 minutes; topcoat thickness 0.25 mm, add 3% curing agent; 50°C curing for 3 hours, humidity 60% RH, non-vacuum environment.

[0049] Wherein, the detection is carried out, and relevant parameters are as follows: adhesion 4B, color fading-free after UV irradiation for 500 hours in weather resistance test.

[0050] In addition, in order to verify the technical advantages of the bionic fishing lure in simulation degree, durability, environmental adaptability and the like compared with the traditional process, comparative experiments are carried out, and the specific conditions are as follows:

[0051] In terms of experimental samples, the bionic fishing lure of the application adopts PVC drop glue composite layer and metal base, the total thickness of the composite layer is 0.5 mm, and there are 10 pieces; the traditional paint fishing lure adopts an aluminum alloy base and a polyurethane paint coating layer, the thickness of the coating layer is 0.2 mm, and there are 10 pieces; the epoxy resin fishing lure adopts a plastic base and an epoxy resin coating layer, and there is no color layer 3 design, the thickness of the coating layer is 0.4 mm, and there are 10 pieces.

[0052] The simulation degree test is carried out, the spectral reflectance detection is simulated in the range of 200-800 nm visible light, and the fishing efficiency experiment is repeatedly tested 10 times in the same fishing field. The relevant experimental data are shown in Table 1:

[0053] Table 1: Simulation degree test comparison table

[0054] Performance index Invention sample Traditional paint fishing lure Epoxy fishing lure Spectrum matching degree 92% with target fish 75％ 68% single color coating Number of times of attracting fish / 10 times 7 times 4 times 3 times Color durability No fading after 500 hours of UV irradiation 20% fading after 100 hours Yellowing after 200 hours

[0055] According to the data shown in Table 1, the simulation degree of the bionic fishing lure is improved by the multilayer structure design of the PVC drop glue composite layer and the fluorescent pigment system. The comparative experimental data show that the matching degree of the spectral reflectance of the sample of the application and the target fish is 92%, which is increased by 17% and 24% compared with the traditional paint fishing lure 75% and the epoxy resin fishing lure 68% respectively. This advantage is directly reflected in the fishing scene, and the fishing frequency of the sample of the application is 7 times per 10 times, which is increased by 75% compared with the paint fishing lure 4 times and by 133% compared with the epoxy resin fishing lure 3 times. The core lies in that the optical refractive index of the drop glue primer 2 and the topcoat matches the skin texture of fish, and the fluorescent agent of the color layer 3 can simulate the light reflection characteristics of aquatic organisms under different light, so that full-dimensional simulation from “color appearance” to “biological optical behavior” is formed, and the technical bottleneck of “similar in shape but not in spirit” of the traditional process is solved.

[0056] In addition, durability tests were conducted with the following parameters: abrasion resistance test: ASTM D4060 standard with 500g pressure reciprocating friction; impact test: 1 meter free fall to steel plate repeated 10 times; adhesion test: crosshatch test ASTM D3359 standard. The specific experimental data are shown in Table 2:

[0057] Table 2 Durability test comparison table

[0058] Performance index Invention sample Traditional paint fishing lure Epoxy fishing lure Wear resistance times ≥3000 times ≤800 times 1500-1800 times Damage after collision No peeling of composite layer Paint peeling area 25-30% Cracking at coating edge Adhesion level 5B highest level 2B 3B

[0059] With the help of the experimental data in Table 2, it is confirmed that the PVC drop glue composite layer of the present application improves the durability of the fish bait to more than 3 times that of the traditional process. In the 500g pressure abrasion resistance test, the number of abrasion resistance of the sample of the present application is ≥3000 times, which is 3.75 times higher than that of the painted fish bait ≤800 times, and 1.6-2 times higher than that of the epoxy resin fish bait 1500-1800 times; after 1 meter drop impact, the composite layer of the sample of the present application has no peeling, while the peeling area of the painted fish bait reaches 25-30%, and the epoxy resin fish bait appears edge cracking. This advantage is due to the "combination of hardness and softness" of the PVC drop glue material, which forms a chemical bond with the metal / plastic substrate to achieve an adhesion of 5B, the highest grade, and the elastic network structure of the surface layer can absorb impact energy and avoid stress concentration leading to coating damage. This feature enables the fish bait to maintain its appearance in high-frequency use or complex fishing environment, reducing the decline in fish attraction efficiency due to "appearance loss".

[0060] In addition, environmental adaptability tests were conducted with the following parameters: salt spray test: 5% NaCl solution, 35°C constant temperature spraying for 24 hours; temperature cycle test: -20°C to 60°C, 12 hours / period, a total of 5 periods. The specific experimental data are shown in Table 3:

[0061] Table 3 Environmental adaptability test comparison table

[0062] Performance index Invention sample Traditional paint fishing lure Epoxy fishing lure Salt spray test result No corrosion, no peeling Paint bulging, rusting Coating whitening, peeling After temperature cycling No cracking of composite layer Paint alligatoring Epoxy layer becomes hard and brittle

[0063] With the help of Table 3, the present application has achieved a comprehensive breakthrough in environmental tolerance through material formulation and process optimization. The salt spray test shows that the sample of the present application has no corrosion and peeling after being sprayed in 5% NaCl solution for 24 hours, while the painted fish bait appears bulging and rusting, and the epoxy resin fish bait coating whitens and peels off; after the temperature cycle test -20°C to 60°C, the composite layer of the present application remains flexible, while the traditional process appears paint cracking or resin layer embrittlement. This feature enables it to be applicable to freshwater fishing, sea fishing, and extreme temperature water areas, etc. For example, in seawater environment, the chemical inertness of the drop glue layer can resist chloride ion corrosion and prevent metal substrate from rusting; in low temperature environment, the plasticizing system of PVC can maintain the elasticity of the material to prevent coating fracture caused by hardening, solving the application limitations of traditional fish bait "not durable in freshwater, easily damaged in seawater".

[0064] In summary, by means of the above technical solutions of the present application, the following effects can be achieved:

[0065] The present application significantly improves the simulation effect and durability of the artificial bait by constructing a PVC composite layer composed of a drop glue bottom layer 2, a color layer 3 and a drop glue surface layer 4 on the surface of the base. The drop glue bottom layer 2 has good bonding force between the base, which can effectively prevent the composite layer from falling off; the color layer 3 uses water-based pigments and adds fluorescent agent, which can simulate the color gradient and reflective properties of real aquatic organisms, enhancing the attraction to fish; the drop glue surface layer 4 provides a wear-resistant and impact-resistant protective barrier for the bait, so that it is not easy to damage the appearance due to collision during casting and recovery. This multi-layer composite structure design fundamentally solves the problems of easy peeling, monotonous color and poor durability of traditional bait coatings, so that the bait can still maintain good fish attracting effect in complex fishing environment.

[0066] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and those skilled in the art will easily think of other embodiments of the present disclosure after considering the disclosure in the specification and examples. The present application is intended to cover any variations, uses or adaptive changes of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed by the present disclosure. The specification and examples are only considered as exemplary, and the true scope and spirit of the present disclosure are indicated by the claims.

[0067] It should be understood that the present disclosure is not limited to the precise construction that has been described above and illustrated in the accompanying drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A bionic fishing bait with a PVC glue composite layer, characterized in that: include: A substrate (1), wherein the surface of the substrate (1) is sequentially covered with a PVC composite layer consisting of a drop glue bottom layer (2), a color layer (3) and a drop glue surface layer (4), wherein the total thickness of the PVC composite layer is 0.5-2 mm, wherein the thickness of the drop glue bottom layer (2) is 0.2-1 mm, and the thickness of the drop glue surface layer (4) is 0.3-1 mm.

2. The bionic fishing bait with a PVC glue composite layer according to claim 1, characterized in that: The substrate (1) comprises any one of a metal substrate and a plastic substrate.

3. The bionic fishing bait with a PVC glue composite layer according to claim 2, characterized in that: The surface of the head (5) of the metal base is subjected to nickel electroplating treatment, and a sealing groove is provided at the junction of the head (5) and the PVC composite layer.

4. The bionic fishing bait with a PVC glue composite layer according to claim 2, characterized in that: The material of the plastic matrix is ​​ABS plastic.

5. The bionic fishing bait with a PVC glue composite layer according to claim 1, characterized in that: The color layer (3) is made of water-based pigment, and a fluorescent agent is added to the color layer (3).

6. The bionic fishing bait with a PVC glue composite layer according to claim 5, characterized in that: The glue bottom layer (2) is made by mixing PVC resin and plasticizer in a molar ratio of 3:1, and the plasticizer is dioctyl phthalate.

7. The bionic fishing bait with a PVC glue composite layer according to claim 6, characterized in that: The dripping glue surface layer (4) is made of PVC resin added with a curing agent at a molar ratio of 2-3%, and the curing agent is dibenzoyl peroxide.

8. A process for preparing a bionic fish bait with a PVC glue-coated composite layer, used for preparing the bionic fish bait with a PVC glue-coated composite layer according to any one of claims 1 to 7, characterized in that: The following steps are involved: Pre-treating the substrate surface in advance, including cleaning the substrate surface with acetone or alcohol, and then polishing the substrate surface with 200-400 grit sandpaper to a surface roughness Ra value of 1.6-3.2 μm; Prepare the glue base layer by mixing PVC resin and plasticizer in a ratio of 3:1, heating and stirring at 60°C for 10 minutes, and then applying it to the pretreated substrate surface to form a glue base layer with a thickness of 0.2-1mm, and leaving it at room temperature for 30 minutes; Building a color layer, including building a color layer on the glue bottom layer by a pad printing process or a spraying process; Prepare the glue surface layer by adding 2-3% curing agent to the PVC resin, heating and stirring at 70°C for 5 minutes, and then applying it on the surface of the color layer by roller coating to form a glue surface layer with a thickness of 0.3-1mm; For curing treatment, place the substrate coated with the glue surface in an environment with a temperature of 50-70°C and a humidity of ≤60% RH for curing for 1.5-3 hours. During the curing process, the vacuum degree is controlled at -0.08MPa for degassing treatment to form a finished product.

9. The process for preparing the bionic fishing bait with the PVC glue composite layer according to claim 8, characterized in that: The pad printing process includes using a steel plate with a mesh size of 200-300 meshes.

10. The process for preparing the bionic fishing bait with the PVC glue composite layer according to claim 9, characterized in that: The spraying process includes: controlling the spray gun pressure to 0.3-0.5 MPa, and drying at a temperature of 50° C. for 15-20 minutes after the construction is completed.

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