Novel degradable environment-friendly card

Abstract

The utility model discloses a novel degradable environment-friendly card which comprises a first surface layer and / or a second surface layer. The novel degradable environment-friendly card is prepared by mixing and processing the following materials in percentage by weight: 50-80% of polyhydroxyalkanoate, 10-30% of natural cellulose and 2-10% of a biodegradable aid. Materials adopted by the novel degradable environment-friendly card are all renewable resources which can be rapidly and naturally degraded, so that no burden is caused to the environment; meanwhile, the main material polyhydroxyalkanoate has excellent mechanical properties and processing properties similar to those of plastics. The novel degradable environment-friendly card can be used for manufacturing IC cards, magnetic stripe cards, bar code cards, room cards, electronic game rechargeable cards and the like; the card is light in weight, small in size, convenient to carry, wide in applicability and multiple in application scenes.

Description

Technical Field

[0001] The utility model relates to the field of environmentally friendly cards, and in particular to a novel degradable environmentally friendly card. Background Art

[0002] With technological advancements, electronic cards have become an indispensable part of modern life. However, traditional plastic cards, particularly those made from polyvinyl chloride (PVC), face serious environmental challenges. PVC's stability makes it difficult to degrade in the natural environment, and tens of millions of discarded plastic cards each year contribute to significant marine pollution. Furthermore, the production and use of traditional plastic cards consumes significant resources, resulting in significant waste. Utility Model Content

[0003] (1) Problems to be solved

[0004] The purpose of the utility model is to provide a novel degradable and environmentally friendly card to address the deficiencies of the prior art.

[0005] (2) Technical solution

[0006] The utility model is achieved through the following technical solutions:

[0007] A novel biodegradable and environmentally friendly card includes a first surface layer and / or a second surface layer. The novel biodegradable and environmentally friendly card is made by mixing the following materials in weight percentage: polyhydroxyalkanoate: 50-80%, natural cellulose: 10-30%, and a biodegradation aid: 2-10%.

[0008] Furthermore, the first surface layer is bonded to the second surface layer. A chip is encapsulated between the first and second surface layers. The polyhydroxyalkanoate includes one or more of polyhydroxybutyrate, polyhydroxyvalerate, and a polyhydroxybutyrate-polyhydroxyvalerate copolymer. The natural cellulose includes one or more of wood powder, bamboo powder, and straw fiber. The biodegradation aid includes one or more of starch, sodium alginate, and a toughening agent. The biodegradation aid includes one or more of starch, sodium alginate, and a toughening agent.

[0009] Furthermore, a control storage unit, a display screen, operation buttons, and a battery are encapsulated between the first surface layer and the second surface layer.

[0010] Furthermore, a barcode is arranged on the first surface layer and / or the second surface layer, and the barcode is arranged on the outside of the first surface layer and / or the second surface layer by one or more methods of printing, laser etching, laser printing, electronic display, and sticker labeling.

[0011] Furthermore, the first surface layer and / or the second surface layer are designed with a texture pattern. The texture pattern is arranged and disposed on the outside of the first surface layer and / or the second surface layer by one or more methods selected from the group consisting of screen printing, thermal transfer printing, UV printing, inkjet printing, and laser etching. The first surface layer and / or the second surface layer are designed with a texture pattern. The texture pattern is arranged and disposed on the outside of the first surface layer and / or the second surface layer by one or more methods selected from the group consisting of screen printing, thermal transfer printing, UV printing, inkjet printing, and laser etching.

[0012] Furthermore, the thickness of the new biodegradable and environmentally friendly card is between 0.2mm and 0.8mm.

[0013] (3) Beneficial effects

[0014] The card of this utility model is made of environmentally friendly materials, can be rapidly biodegraded in the marine environment, and is harmless to the marine ecosystem; its main material, polyhydroxyalkanoate, has excellent mechanical properties and processing properties similar to plastics, and can be used to make IC cards, magnetic stripe cards, barcode cards, room cards, electronic game recharge cards, etc., with wide applicability and multiple application scenarios. At the same time, polyhydroxyalkanoate can be continuously produced through microbial fermentation, which is easy to obtain and sustainable, which is conducive to mass production and use by enterprises. In addition, the utility model can also integrate more components, such as display panels, buttons, chips, etc., so that it can be widely used in various scenarios such as bank cards, access cards, membership cards, tickets, etc., to meet users' needs for diversified functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0016] Figure 1 It is a three-dimensional diagram of the novel degradable and environmentally friendly card of the utility model.

[0017] Figure 2 It is a layered structure diagram of the novel degradable and environmentally friendly card described in the utility model.

[0018] Figure 3 This is an IC card application structure diagram of the novel degradable and environmentally friendly card described in the utility model.

[0019] Figure 4 This is a diagram of the smart card application structure of the novel degradable and environmentally friendly card described in the utility model.

[0020] Figure 5 This is a barcode card application structure diagram of the new degradable and environmentally friendly card described in the utility model.

[0021] Figure 6This is an example of the pattern design of the new type of degradable and environmentally friendly card described in the present invention.

[0022] The following are the descriptions of the reference numerals:

[0023] 1. New biodegradable and environmentally friendly card; 2. First surface layer; 3. Second surface layer; 4. Chip; 5. Control storage unit; 6. Display screen; 7. Operation button; 8. Barcode; 9. Texture pattern; 10. Battery. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and do not limit the scope of protection of the present invention. The present invention is described in detail below in conjunction with the accompanying drawings.

[0025] In the description of this application, it should be understood that the terms "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] See also Figure 1-Figure 2 As shown, the present invention provides a novel biodegradable and environmentally friendly card comprising a first surface layer and / or a second surface layer. The novel biodegradable and environmentally friendly card is made from a mixture of the following materials by weight: polyhydroxyalkanoate: 50-80%, natural cellulose: 10-30%, and a biodegradation aid: 2-10%. Cards made from these environmentally friendly materials are easily degradable and do not burden the environment.

[0028] Specifically, the new biodegradable and eco-friendly card has a thickness between 0.2mm and 0.8mm. Less than 1cm thick, it is lightweight and portable, making it easy to carry in a pocket, wallet, or phone case.

[0029] First embodiment:

[0030] See also Figure 3As shown, the first surface layer and the second surface layer are bonded with hot melt adhesive. During bonding, a chip is placed between the first surface layer and the second surface layer, and the chip is encapsulated in the interlayer between the first surface layer and the second surface layer. A gap space is reserved inside the interlayer to facilitate heat dissipation of the chip. Polyhydroxyalkanoates include one or more of polyhydroxybutyrate, polyhydroxyvalerate and polyhydroxybutyrate-polyhydroxyvalerate copolymers. Natural cellulose includes one or more of wood powder, bamboo powder and straw fiber. Biodegradable aids include one or more of starch, sodium alginate and toughening agents. Biodegradable aids include one or more of starch, sodium alginate and toughening agents. Among them, polyhydroxyalkanoates (PHA for short) are polymers synthesized by microorganisms using carbon sources under specific conditions. They can be degraded by microorganisms in the natural environment. They are a renewable resource and are non-toxic to the human body. Polyhydroxybutyrate (PHB), a member of the polyhydroxyalkanoate (PHB) family, is a biodegradable polymer synthesized by bacteria. It exhibits excellent plasticity and mechanical strength similar to that of polypropylene, but can be degraded by microorganisms into water, carbon dioxide, and biomass, without causing environmental pollution. Polyhydroxyvalerate (PHV), also a member of the polyhydroxyalkanoate (PHA) family, is similar to PHB in that it can be degraded by microorganisms into water, carbon dioxide, and biomass. However, its chemical structure and properties differ slightly from those of PHB. In contrast, PHB exhibits higher tensile strength, toughness, and melting point than PHB, and is more stable at high temperatures. Wood flour and bamboo flour are powdered materials made from plant fibers. They are both renewable resources and easily degraded by the natural environment. Straw fiber is a natural fiber material extracted from plant straw through physical or chemical treatment and is naturally degradable. Furthermore, as a byproduct of agricultural crops, its use can reduce crop waste and minimize environmental pollution. Biodegradation aids include one or more of starch, sodium alginate, and toughening agents. Starch is a natural polysaccharide found in plants, and sodium alginate is a natural polysaccharide extracted from seaweed. Both are rapidly degraded by microorganisms in the natural environment. The new biodegradable and eco-friendly card made from these materials can be completely degraded in seawater within six months.

[0031] Second embodiment:

[0032] See also Figure 4 As shown, a control storage unit, display screen, battery, operation buttons, and battery are also encapsulated between the first and second surface layers. This solution allows multiple functions to be integrated into a single card, such as identity recognition, payment, data recording, encryption, top-up, and time viewing, making it easier for users to carry and use, and improving the user experience.

[0033] Third embodiment:

[0034] See also Figure 5As shown, a barcode is disposed on the first surface layer and / or the second surface layer. The barcode is disposed on the exterior of the first surface layer and / or the second surface layer by one or more of printing, laser etching, laser printing, electronic display, and sticker labeling. Printing the barcode on the card surface enables the biodegradable and environmentally friendly card to be widely used in attraction and park tickets, bus tickets, various membership cards, electronic debit cards, and bank cards.

[0035] Fourth embodiment:

[0036] See also Figure 6 As shown, the first surface layer and / or the second surface layer are designed with a textured pattern. The textured pattern is arranged and disposed on the exterior of the first surface layer and / or the second surface layer by one or more methods selected from screen printing, thermal transfer printing, UV printing, inkjet printing, and laser etching. Designing a textured pattern on a card can add beauty to the product, increasing its visual appeal and artistic quality, making the card more attractive and unique. The textured pattern can be used in product anti-counterfeiting design, effectively preventing counterfeiting and piracy through its unique texture and pattern. The textured pattern can also increase the hardness and wear resistance of the card surface, effectively preventing scratches and damage.

[0037] Sample test records:

[0038] ① Place the new biodegradable environmentally friendly card in 25℃ seawater and observe the degradation of the new biodegradable environmentally friendly card at regular intervals.

[0039] ② Test the tensile strength, flexibility and waterproof performance of the new biodegradable and environmentally friendly card.

[0040] Table 1 shows the main performance parameters of the new biodegradable environmentally friendly card

[0041]

[0042] (Table 1)

[0043] Performance testing of the card revealed that the new biodegradable and environmentally friendly card exhibits excellent biodegradability, completely biodegrading within six months in seawater at 25°C. The card also exhibits high tensile strength (≥10 MPa), good flexibility, and water resistance.

[0044] In summary, it can be seen that the present invention has the above-mentioned excellent characteristics, which can enhance its performance unprecedented in the prior art and become a product with great practical value.

[0045] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A new type of biodegradable environmentally friendly card, characterized by: It includes a first surface layer and / or a second surface layer, the main material of the first surface layer and / or the second surface layer is polyhydroxyalkanoate; the first surface layer and the second surface layer are glued together; a chip is encapsulated between the first surface layer and the second surface layer; a control storage unit, a display screen, an operation button, and a battery are also encapsulated between the first surface layer and the second surface layer.

2. The novel biodegradable environmentally friendly card according to claim 1, characterized in that: A barcode is arranged on the first surface layer and / or the second surface layer; the barcode is arranged on the outside of the first surface layer and / or the second surface layer by one or more methods of printing, laser etching, laser printing, electronic display, and sticker labeling.

3. The novel biodegradable environmentally friendly card according to claim 2, characterized in that: The first surface layer and / or the second surface layer are designed with a texture pattern; the texture pattern is arranged on the outside of the first surface layer and / or the second surface layer by one or more methods of screen printing, thermal transfer, UV printing, inkjet printing, and laser etching.

4. The novel biodegradable environmentally friendly card according to claim 1, characterized in that: The thickness of the novel degradable and environmentally friendly card is between 0.2 mm and 0.8 mm.

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