Plastic-substitute paper for electrostatic protection

Abstract

The utility model discloses a plastic-substitute paper for electrostatic protection, which belongs to the technical field of packaging paper and comprises an outer protection zone, a foaming buffer layer and an inner protection zone. The outer protection zone is composed of a conductive layer, an insulating protective layer and an outer base paper layer from top to bottom, and the conductive layer is formed by interlacing and weaving a plurality of conductive threads; the inner protection zone is composed of an inner base paper layer, an antistatic layer and a wear-resistant layer from top to bottom, and the wear-resistant layer is formed by interlacing and weaving a plurality of wear-resistant fibers; the foaming buffer layer is arranged between the outer base paper layer and the inner base paper layer, and a plurality of buffer cavities are arranged in the foaming buffer layer; the plastic-substitute paper of the utility model has good environmental protection, toughness, impact resistance and buffering, wear resistance, water resistance and other properties, and can be used as a buffer packaging material for products such as electronic components and integrated circuits and provide good protection for these products.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging paper, in particular to a plastic-substitute paper for electrostatic protection. Background Art

[0002] In order to prevent electronic components, integrated circuits and other products from being damaged by mechanical loads such as impact and vibration during transportation, it is usually necessary to cushion the products. Currently, common cushioning packaging is made of materials such as foam cotton, bubble film, corrugated cardboard, honeycomb cardboard, etc. Bubble cotton and bubble film have good toughness and elasticity, good cushioning performance, durability, and waterproofness, and can protect the products well. Both corrugated cardboard and honeycomb cardboard have many cavities inside and have certain cushioning performance; however, these cushioning packaging materials are prone to accumulate static electricity due to mutual friction during transportation. When static electricity accumulates to a certain extent, it is easy to damage electronic components, integrated circuits and other products. In addition, foam cotton and bubble film are usually made of difficult-to-degrade materials, and improper abandonment can easily lead to environmental pollution. Although the materials made of corrugated cardboard and honeycomb cardboard are easy to degrade, they have defects such as brittleness, poor resilience, and non-waterproofness, and have poor durability during use; therefore, it is necessary to produce a cushioning packaging material with good anti-static performance, cushioning performance, durability, waterproofness and easy degradation according to the defects of the cushioning packaging materials currently used for electronic components, integrated circuits and other products.

[0003] A Chinese patent with publication number CN216373693U discloses an antistatic composite paper, comprising a paper substrate, wherein the upper and lower surfaces of the paper substrate are coated with an antistatic agent layer, an antistatic film layer is arranged outside the antistatic agent layer, and the paper substrate comprises a corrugated base layer and a honeycomb base layer, wherein the corrugated base layer and the honeycomb base layer are bonded together by an adhesive; the antistatic composite paper realizes an antistatic function by coating the antistatic agent layer on the upper and lower surfaces of the paper substrate, thereby ensuring that the electronic instruments packaged inside are protected from damage by static electricity, but the paper substrate is formed by bonding the corrugated base layer and the honeycomb base layer, resulting in poor toughness of the antistatic composite paper. When the package collides with an external object during transportation, the external object can easily penetrate the antistatic composite paper directly and collide with the electronic instruments packaged inside, thereby causing damage to the electronic instruments. Therefore, there is still room for improvement in the antistatic composite paper. Utility Model Content

[0004] In view of the technical defects existing in the background technology, the utility model proposes a plastic-substitute paper for electrostatic protection, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0005] A plastic-substitute paper for electrostatic protection, comprising an outer protection area, a foaming buffer layer, and an inner protection area, wherein the outer protection area is composed of a conductive layer, an insulating protective layer, and an outer base paper layer in order from top to bottom, wherein the conductive layer is formed by interlacing a plurality of conductive threads, and the insulating protective layer completely covers the upper surface of the outer base paper layer;

[0006] The inner protection zone is composed of an inner base paper layer, an antistatic layer, and a wear-resistant layer from top to bottom, wherein the antistatic layer completely covers the lower surface of the outer base paper layer, and the wear-resistant layer is formed by interlacing and weaving a plurality of wear-resistant fibers;

[0007] The foaming buffer layer is arranged between the outer base paper layer and the inner base paper layer, and a plurality of buffer cavities are arranged in the foaming buffer layer.

[0008] As a further technical solution of the utility model, an outer heat sealing layer is provided on the edge of the upper surface of the conductive layer, and the outer heat sealing layer is formed by intermittently coating a heat sealing material on the upper surface of the conductive layer and then curing it.

[0009] As a further technical solution of the utility model, an inner heat-sealing layer is provided on the edge of the lower surface of the wear-resistant layer, and the inner heat-sealing layer is formed by intermittently coating a heat-sealing material on the lower surface of the wear-resistant layer and then curing it.

[0010] As a further technical solution of the utility model, the insulating protective layer is formed by coating an insulating material on the upper surface of the outer base paper layer and then curing it, and the bottom of the conductive layer is embedded in the insulating protective layer.

[0011] As a further technical solution of the utility model, the outer base paper layer and the inner base paper layer are both made of wood pulp paper with a grammage of 20-120gsm.

[0012] As a further technical solution of the utility model, the antistatic layer is formed by coating the antistatic material on the lower surface of the inner base paper layer and then curing it, and the top of the wear-resistant layer is embedded in the antistatic layer.

[0013] As a further technical solution of the utility model, the upper surface of the outer base paper layer is intermittently or completely covered with printing ink and then solidified to form a printing surface.

[0014] The beneficial effects of the utility model are:

[0015] Each structural layer in the plastic-substitute paper of the utility model can be made of easily degradable or recyclable materials, which is environmentally friendly and can replace the current difficult-to-degrade cushioning packaging materials. The outer protection zone prevents static electricity accumulation and waterproofness through the conductive layer and the insulating protection layer, while increasing the toughness and mechanical strength of the surface of the plastic-substitute paper. The foaming buffer layer forms a number of buffer cavities through foaming, which can improve the toughness and impact resistance of the plastic-substitute paper. The inner protection zone prevents static electricity accumulation through the antistatic layer and the wear-resistant layer, while increasing the toughness and wear resistance of the surface of the plastic-substitute paper. Therefore, the plastic-substitute paper has good environmental protection, toughness, impact buffering, wear resistance, waterproofness and other properties, and can be used as a cushioning packaging material for electronic components, integrated circuits and other products and provide good protection for these products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a plastic-substitute paper used for electrostatic protection.

[0017] Figure 2 This is a schematic diagram of the disassembly of a plastic substitute paper used for electrostatic protection.

[0018] Figure 3 The present invention is a schematic structural diagram of a second embodiment of a plastic-substitute paper for electrostatic protection.

[0019] Figure 4 The present invention is a schematic structural diagram of a third embodiment of a plastic-substitute paper for electrostatic protection.

[0020] Among them: outer protection area 1, conductive layer 11, conductive wire 111, insulating protection layer 12, outer base paper layer 13, printing surface 14, foaming buffer layer 2, buffer cavity 21, inner protection area 3, inner base paper layer 31, antistatic layer 32, wear-resistant layer 33, wear-resistant fiber 331, outer heat sealing layer 4, inner heat sealing layer 5. DETAILED DESCRIPTION

[0021] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0022] like Figure 1 , 2As shown, a plastic-substitute paper for electrostatic protection comprises an outer protection zone 1, a foaming buffer layer 2, and an inner protection zone 3. The outer protection zone 1 is composed of a conductive layer 11, an insulating protective layer 12, and an outer base paper layer 13 from top to bottom. The conductive layer 11 is woven by a plurality of conductive threads 111, and the insulating protective layer 12 completely covers the upper surface of the outer base paper layer 13; the inner protection zone 3 is composed of an inner base paper layer 31, an antistatic layer 32, and a wear-resistant layer 33 from top to bottom. The antistatic layer 32 completely covers the lower surface of the outer base paper layer 13, and the wear-resistant layer 33 is woven by a plurality of wear-resistant fibers 331; the foaming buffer layer 2 is arranged between the outer base paper layer 13 and the inner base paper layer 31, and a plurality of buffer cavities 21 are arranged in the foaming buffer layer 2.

[0023] The plastic-substitute paper of the utility model is mainly used for cushioning packaging of electronic components, integrated circuits and other products. The outer protection area 1 is the outer surface of the cushioning packaging, and the inner protection area 3 is the inner side of the cushioning packaging and contacts with the products packaged inside. In the outer protection area 1, the conductive layer 11 uses a conductive material as a conductive wire 111, such as a metal wire, a fiber material loaded with a conductive material, etc., preferably a metal wire, and the conductive layer 11 with a mesh structure is formed by weaving the metal wire. The insulating protective layer 12 is made of a degradable and insulating material, preferably a degradable polymer such as polylactic acid and polybutylene succinate, and the polymer is dissolved in a suitable solvent to make a coating, and then the coating is The material is coated on the upper surface of the outer base paper layer 13 and then dried to evaporate the solvent, thereby forming a polymer film layer on the upper surface of the outer base paper layer 13. The polymer film layer is the insulating protective layer 12. The insulating protective layer 12 has good waterproof and insulating properties to prevent external liquids from penetrating into the interior of the plastic-free paper and the packaged products, causing damage to the plastic-free paper or the products. The insulating protective layer 12 cooperates with the conductive layer 11 through its insulation. The conductive layer 11 can conduct the static electricity generated by the insulating protective layer 12 to other contacting objects or the ground through conduction, thereby avoiding static electricity accumulation and static electricity conduction to the products packaged inside the plastic-free paper, thereby avoiding product damage due to static electricity.

[0024] After adopting the above structure, it needs to be further explained that the conductive wire 111 is preferably a metal wire, and the conductive layer 11 is formed by interlacing and weaving a number of conductive wires 111, that is, the conductive layer 11 is a metal mesh woven from metal wires. The conductive layer 11 and the insulating protective layer 12 can be fixed to each other by bonding with an adhesive. The conductive layer 11 can also increase the toughness, wear resistance, mechanical strength and other properties of the outer surface of the outer protection area 1, thereby avoiding the insulation and waterproof properties of the plastic paper surface affected by the wear of the insulating protective layer 12 during use, and can also avoid the plastic paper being penetrated when colliding with external objects, thereby better protecting the products packaged inside the plastic paper.

[0025] In the inner protection zone 3, the antistatic layer 32 is formed by coating the lower surface of the inner base paper layer 31 with an antistatic coating. The antistatic coating prevents static electricity accumulation by changing charge distribution, increasing conductivity, shielding static electricity, neutralizing and absorbing static electricity, thereby preventing the products packaged inside the plastic-free paper from being damaged due to static electricity accumulation. The wear-resistant fiber 331 preferably adopts cellulose fiber, regenerated cellulose fiber, polylactic acid fiber, seaweed fiber or one or more of which are twisted to form a filamentary material. The wear-resistant fiber 331 has the advantages of high toughness, environmental protection, degradability, and renewability. After the wear-resistant fiber 331 is woven into a wear-resistant layer 33 with a mesh structure, the wear-resistant layer 33 exhibits good tear resistance, tensile resistance and other properties, making the plastic-free paper have higher toughness and are more durable. The wear-resistant layer 33 can also increase the wear resistance of the contact surface between the inner protection zone 3 and the product, and prevent the antistatic layer 32 from falling off due to friction with the product, thereby better protecting the products packaged inside the plastic-free paper.

[0026] The foaming buffer layer 2 can be made of a foam of one of the polymers polybutylene succinate and polylactic acid. After the polymer is foamed to form a foam, a number of pore structures are formed inside. These pore structures are the buffer cavities 21 in the foaming buffer layer 2. Both polybutylene succinate and polylactic acid are biodegradable materials, which can be decomposed into substances such as carbon dioxide and water under the action of microorganisms and will not pollute the environment. One of them is foamed to form a foam as the foaming buffer layer 2, which can increase the buffering performance and toughness of the plastic-free paper through the internal pore structure, thereby better resisting the impact of external objects, thereby better protecting the products packaged inside the plastic-free paper.

[0027] Each structural layer in the plastic-substitute paper of the utility model can be made of easily degradable or recyclable materials, which is environmentally friendly and can replace the current difficult-to-degrade cushioning packaging materials. The outer protection area 1 prevents static electricity accumulation and waterproofness through the conductive layer 11 and the insulating protection layer 12, while increasing the toughness and mechanical strength of the surface of the plastic-substitute paper. The foaming buffer layer 2 forms a plurality of buffer cavities 21 through foaming, which can improve the toughness and impact resistance of the plastic-substitute paper. The inner protection area 3 prevents static electricity accumulation through the antistatic layer 32 and the wear-resistant layer 33, while increasing the toughness and wear resistance of the surface of the plastic-substitute paper, so that the plastic-substitute paper has good environmental protection, toughness, impact buffering, wear resistance, waterproofness and other properties, and can be used as a cushioning packaging material for electronic components, integrated circuits and other products and provide good protection for these products.

[0028] like Figure 3 As shown, as a second preferred embodiment of the utility model, an outer heat-sealing layer 4 is provided on the edge of the upper surface of the conductive layer 11, and the outer heat-sealing layer 4 is formed by intermittently coating a heat-sealing material on the upper surface of the conductive layer 11 and then solidifying it; an inner heat-sealing layer 5 is provided on the edge of the lower surface of the wear-resistant layer 33, and the inner heat-sealing layer 5 is formed by intermittently coating a heat-sealing material on the lower surface of the wear-resistant layer 33 and then solidifying it.

[0029] The heat-sealing material of the utility model is selected from one of a starch-based heat-sealing material and a cellulose-based heat-sealing material. The heat-sealing material is intermittently coated on the upper surface of the conductive layer 11 and the lower surface of the wear-resistant layer 33 to form an outer heat-sealing layer 4 and an inner heat-sealing layer 5. The outer heat-sealing layer 4 and the inner heat-sealing layer 5 are respectively located at the edges of the upper surface and the lower surface of the plastic-substitute paper. The outer heat-sealing layer 4 and the inner heat-sealing layer 5 can both be melted by heating to show plasticity and viscosity, so that the plastic-substitute paper is adhered and wrapped by the edges to form a packaging bag for packaging products, and the edge of the packaging bag is firmly bonded by the outer heat-sealing layer 4 and the inner heat-sealing layer 5, thereby improving the firmness of the packaging bag.

[0030] like Figure 4 As shown, as a third preferred embodiment of the utility model, the insulating protective layer 12 is formed by coating an insulating material on the upper surface of the outer base paper layer 13 and then curing it, and the bottom of the conductive layer 11 is embedded in the insulating protective layer 12.

[0031] The insulating protective layer 12 is made of easily degradable and insulating materials, preferably easily degradable polymers such as polylactic acid and polybutylene succinate. The polymer is dissolved in a suitable solvent to make a coating, and then the coating is coated on the upper surface of the outer base paper layer 13 and dried to evaporate the solvent, thereby forming a polymer film layer on the upper surface of the outer base paper layer 13. The coating can be coated twice separately. After the second coating, the conductive layer 11 is covered and pressed on the coating, so that the conductive layer 11 is bonded by the coating, and the bottom of the conductive layer 11 is embedded in the insulating protective layer 12, thereby improving the firmness of the bonding between the conductive layer 11 and the insulating protective layer 12.

[0032] As one of the preferred embodiments of the present invention, both the outer base paper layer 13 and the inner base paper layer 31 are made of wood pulp paper with a grammage of 20-120 gsm.

[0033] The outer base paper layer 13 and the inner base paper layer 31 of the utility model can select wood pulp papers of different grammages according to the application scenarios of the plastic-replacing paper. Wood pulp paper is usually made of virgin wood pulp, which can be completely degraded in nature. It has moderate toughness and hardness. The higher the grammages of wood pulp paper, the higher the protective performance.

[0034] like Figure 4 As shown, as a third preferred embodiment of the utility model, the antistatic layer 32 is formed by coating the antistatic material on the lower surface of the inner base paper layer 31 and then curing it, and the top of the wear-resistant layer 33 is embedded in the antistatic layer 32.

[0035] The antistatic layer 32 of the utility model is formed by coating an antistatic coating on the lower surface of the inner base paper layer 31. The antistatic coating prevents static electricity accumulation by changing charge distribution, increasing conductivity, shielding static electricity, neutralizing and absorbing static electricity, so as to avoid damage to the products packaged inside the plastic paper due to static electricity accumulation. The amount of adhesive added to the antistatic coating can be increased. After the antistatic coating is applied, the wear-resistant layer 33 is covered on its surface for bonding, thereby improving the firmness of the wear-resistant layer 33 fixed to the antistatic layer 32 and the inner base paper layer 31.

[0036] like Figure 1 As shown, as one of the preferred embodiments of the utility model, the upper surface of the outer base paper layer 13 is intermittently or completely covered with printing ink and then solidified to form a printing surface 14.

[0037] The plastic substitute paper of the present invention is used for buffer packaging of electronic components, integrated circuits and other products. It is usually necessary to print product information, decorative patterns and other contents on the surface of the outer packaging. Therefore, relevant information is usually printed on the outer surface of the plastic substitute paper. During the printing process, the printing ink is solidified on the upper surface of the outer base paper layer 13 to form a printing surface 14. When the printing ink intermittently covers the upper surface of the outer base paper layer 13, it is usually used to print small patterns and product information. When the printing ink completely covers the upper surface of the outer base paper layer 13, it is usually used to change the color of the surface of the plastic substitute paper and print product information, decorative patterns and other contents, and the ink is completely printed on the upper surface of the outer base paper layer 13. It needs to be selected according to needs.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A plastic-substitute paper for electrostatic protection, comprising an outer protection area (1), a foaming buffer layer (2), and an inner protection area (3), characterized in that: The outer protection area (1) is composed of a conductive layer (11), an insulating protective layer (12), and an outer base paper layer (13) from top to bottom, wherein the conductive layer (11) is formed by interlacing and weaving a plurality of conductive threads (111), and the insulating protective layer (12) completely covers the upper surface of the outer base paper layer (13); The inner protection area (3) is composed of an inner base paper layer (31), an antistatic layer (32), and a wear-resistant layer (33) from top to bottom, wherein the antistatic layer (32) completely covers the lower surface of the outer base paper layer (13), and the wear-resistant layer (33) is formed by interlacing and weaving a plurality of wear-resistant fibers (331); The foaming buffer layer (2) is arranged between the outer base paper layer (13) and the inner base paper layer (31), and a plurality of buffer cavities (21) are arranged in the foaming buffer layer (2).

2. The plastic-substitute paper for electrostatic protection according to claim 1, characterized in that: An outer heat-sealing layer (4) is provided at the edge of the upper surface of the conductive layer (11), and the outer heat-sealing layer (4) is formed by intermittently coating a heat-sealing material on the upper surface of the conductive layer (11) and then curing it.

3. The plastic-substitute paper for electrostatic protection according to claim 1, characterized in that: An inner heat-sealing layer (5) is provided at the edge of the lower surface of the wear-resistant layer (33), and the inner heat-sealing layer (5) is formed by intermittently coating a heat-sealing material on the lower surface of the wear-resistant layer (33) and then curing it.

4. The plastic-substitute paper for electrostatic protection according to claim 1, characterized in that: The insulating protective layer (12) is formed by coating an insulating material on the upper surface of the outer base paper layer (13) and then curing the coating, and the bottom of the conductive layer (11) is embedded in the insulating protective layer (12).

5. The plastic-substitute paper for electrostatic protection according to claim 1, characterized in that: The outer base paper layer (13) and the inner base paper layer (31) are both made of wood pulp paper with a grammage of 20-120 gsm.

6. The plastic-substitute paper for electrostatic protection according to claim 1, characterized in that: The antistatic layer (32) is formed by coating an antistatic material on the lower surface of the inner base paper layer (31) and then curing the coating, and the top of the wear-resistant layer (33) is embedded in the antistatic layer (32).

7. The plastic-substitute paper for electrostatic protection according to claim 1, characterized in that: The upper surface of the outer base paper layer (13) is intermittently or completely covered with printing ink and then solidified to form a printed surface (14).

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