Anti-static shielding moisture-proof packaging film bag and production method thereof

Abstract

The present invention discloses an anti-static shielding and moisture-proof packaging film bag and a production method thereof. The present invention belongs to the technical field of electrostatic shielding film bags. The anti-static shielding and moisture-proof packaging film bag comprises, from the inside to the outside, a conductive electrostatic dissipative surface layer, an aluminized polyester layer, a porous aluminum foil, a polyethylene diaphragm layer, and a migrating electrostatic dissipative inner layer, and has electrostatic dissipative, sealing, heat-insulating, and moisture-proof functions. The conductive electrostatic dissipative surface layer protects the surface, the aluminized layer and the porous aluminum foil reduce the use of aluminum materials and reduce costs; the porous aluminum foil improves the composite strength and reduces the use of solvent-free laminating adhesive; the wetting agent migrates to the inner surface of the polyethylene diaphragm layer to form a migrating electrostatic dissipative inner layer, which has a long-lasting electrostatic dissipative function and can also absorb trace moisture in the packaging bag to form an electrostatic dissipative channel. It is suitable for moisture-proof vacuum packaging of sensitive electronic components, meets purification standards and dust-free requirements, and meets the packaging needs of various electronic industries.

Description

Technical Field

[0001] The invention belongs to the technical field of electrostatic shielding film bags, and in particular relates to an anti-static shielding moisture-proof packaging film bag and a production method thereof. Background Art

[0002] With the advancement of electronic technology, a large number of electrostatically sensitive components and products are used in industrial manufacturing. ESD protection has gradually evolved throughout the entire supply chain, encompassing scientific research and production activities such as procurement, production, inspection, testing, failure analysis, packaging, labeling, maintenance, storage, distribution, and transportation. When electrostatically sensitive components and products are transported between or outside of ESD protection zones, anti-static packaging also provides static shielding properties. Therefore, electrostatic shielding packaging bags have become a very important ESD protection product in industrial manufacturing. Humidity is a significant factor in causing corrosion. The main harmful effects of humidity on industrial products and other items include rust on metal products and mildew or deliquescence on non-metallic items. Furthermore, the use of pure aluminum foil is expensive, and aluminum foil composite film bags often result in significant overpackaging, making them uneconomical. Therefore, both from a cost-effective and practical perspective, those skilled in the art urgently need to develop new anti-static shielding and moisture-proof packaging film bags and their production methods. Summary of the Invention

[0003] The purpose of the present invention is to address the existing problems and provide an antistatic shielding moisture-proof packaging film bag and a production method thereof. The present invention does not use an antistatic agent on the film surface and does not use a large amount of aluminum foil.

[0004] Stearic acid diethanolamine is also called bis(β-hydroxyethyl) stearylamine, and N-dodecylethanolamine is also called bis(β-hydroxyethyl) coconut amine. The above two are commonly used as emulsifiers.

[0005] Disclosed is an anti-static shielding and moisture-proof packaging film bag, comprising a conductive static dissipative surface layer, an aluminized polyester layer, a porous aluminum foil, a polyethylene diaphragm layer, and a migrating static dissipative inner layer, which are arranged in sequence from the outside to the inside. The inner surface of the aluminized polyester layer is compositely bonded to the outer surface of the porous aluminum foil; the inner surface of the porous aluminum foil is compositely bonded to the outer surface of the polyethylene diaphragm layer; the aluminized polyester layer is made by aluminizing a PET film; the conductive static dissipative surface layer is formed by applying a static conductive coating to the outer side of the aluminized polyester layer and then curing it; the PET film contains 0.3-0.5 wt% of a migrating wetting agent, the wetting agent being one of bis(β-hydroxyethyl) stearylamine or bis(β-hydroxyethyl) coconut amine; the wetting agent migrates through the porous aluminum foil and the polyethylene diaphragm layer to the inner surface of the polyethylene diaphragm layer to form the migrating static dissipative inner layer.

[0006] Electrostatic shielding: In order to prevent the influence of external electrostatic fields on charged or non-charged objects, or to prevent the influence of the electrostatic field of charged objects on the outside world, the charged or non-charged objects are placed in a grounded closed or nearly closed metal casing or metal grid.

[0007] Anti-static shielding packaging bags: flexible packaging bags with electrostatic shielding properties and electrostatic leakage properties on the inner surface that directly contacts electrostatic sensitive products.

[0008] Furthermore, the porous aluminum foil (3) has a thickness of 0.01 to 0.05 mm, a pore size of 5 to 10 μm, and a pore density of 400 to 500 pores / cm 2 Full surface microporous aluminum foil.

[0009] Furthermore, the thickness of the aluminum layer of the aluminum-plated polyester layer (2) is 30 to 40 nm, and the total thickness of the aluminum-plated polyester layer (2) is 25 μm to 30 μm.

[0010] Furthermore, the polyethylene diaphragm layer (4) has a porosity of 40% to 45%, a thickness of 9 to 12 μm, and a surface density of 4.1 to 4.7 g / m 2 .

[0011] Furthermore, the conductive static dissipative surface layer (1) has a thickness of 10 to 15 μm.

[0012] The production method of the above-mentioned anti-static shielding and moisture-proof packaging film bag comprises the following steps: a. PET film-grade chips are extruded into a cast PET film, and the upper surface of the PET film is aluminum-plated to obtain an aluminum-plated polyester layer, and then the upper surface of the aluminum-plated polyester layer is coated to form a conductive static dissipative surface layer to obtain an aluminum-plated and coated PET film, wherein the PET film-grade chips contain 0.3-0.5wt% of a migratable wetting agent, and the wetting agent is bis(β-hydroxyethyl) stearylamine or bis(β-hydroxyethyl) coconut amine. b. solvent-free compounding: compounding the dried aluminum-plated and coated PET film with the porous aluminum foil and the polyethylene diaphragm layer by a solvent-free three-layer compounding machine under a compounding process; c. winding and aging: the winding speed is 130-150m / min and the winding tension is 140-170N. After winding, the film is aged for 18-24h at a temperature of 40-50℃ and a relative humidity of 50%-75% to obtain an anti-static shielding and moisture-proof packaging film; d. the anti-static shielding and moisture-proof packaging film bag-making machine is used to make bags.

[0013] Furthermore, the extrusion casting process in step a is a processing temperature of 270-290°C, cooling treatment, extrusion temperature of 285-295°C from the die head, direct casting to the cold roller, the temperature of the sheet reaches 40-60°C after peeling off the cold roller, and then heated to 90-100°C by a longitudinal infrared stretching roller and a stretching ratio of 3.3-4.0 to form a thick sheet, and then enters a transverse box with a stretching temperature of 115-125°C, and is heat-set at a stretching ratio of 3.3-3.5 and a temperature of 230-250°C to form a film.

[0014] Furthermore, the PET aluminum plating process in step a is a process in which the vacuum degree of the evaporation chamber is 7×10 -2 Pa~9×10 -2 Pa, evaporation boat current is 700-800A, voltage is 7-8V, wire feeding speed is 0.8-1.2m / min, and PET film winding speed is 400-450m / min.

[0015] Furthermore, the composite process in step b is as follows: the number of composite layers is 3, the coating amount of solvent-free adhesive is 0.8-1g / m 2 , coating temperature 45 ~ 55 ℃, composite temperature 35 ~ 45 ℃, composite speed 300 ~ 500m / min, the solvent-free adhesive is a two-component solvent-free polyurethane laminating adhesive.

[0016] In daily production practice, due to the mistakes of the raw material purchasing staff, it was unexpectedly discovered that the electrostatic shielding effect of porous aluminum foil was quite good and it could reduce some of the aluminum foil costs. The use of aluminum plating can ensure a certain degree of moisture resistance. When the PET contains a migrating wetting agent, it can not only ensure the composite bonding strength with the porous aluminum foil through wetting, but after the solvent-free polyurethane laminating adhesive is cured, the wetting agent can also migrate through the porous aluminum foil and polyethylene diaphragm, migrating to the inner surface of the polyethylene diaphragm layer to form a migrating electrostatic dissipative inner layer. This will not cause the electrostatic dissipation function to fail due to friction during the use of the packaging film bag. The electrostatic dissipation function is long-lasting and can also absorb trace moisture in the packaging bag to form an electrostatic dissipation channel. In addition, the use of materials such as aluminum plating and porous aluminum foil significantly reduces production costs.

[0017] Beneficial effects of the present invention:

[0018] The present invention discloses a method for producing an anti-static shielding and moisture-proof packaging film bag, which adopts a structure in which a conductive static dissipative surface layer, an aluminized polyester layer, a porous aluminum foil, a polyethylene diaphragm layer, and a migrating static dissipative inner layer are sequentially arranged from the outside to the inside, and has the functions of static dissipation, sealing, heat insulation, and moisture-proof. The conductive static dissipative surface layer can not only dissipate static electricity but also protect the surface of the aluminized polyester layer. Moreover, the combined application of the aluminized layer and the porous aluminum foil greatly reduces the use of aluminum materials and reduces production costs. At the same time, the PET film contains 0.3-0.5wt% of a migrating wetting agent and the porous aluminum foil is used, which can improve the adhesive infiltration, enhance the surface adhesion of the aluminum foil, reduce the use of solvent-free polyurethane laminating adhesive, and improve the composite effect. It can increase the bending softness of the film bag and is more suitable for The wetting agent enhances the adhesion to the porous aluminum foil, significantly reducing the defective product rate. The tensile strength of the porous aluminum foil is not significantly lower than that of pure aluminum foil, reducing the proportion of aluminum foil in the mass of the anti-static shielding and moisture-proof packaging film bag. After the solvent-free polyurethane laminating adhesive is cured, the wetting agent can migrate through the porous aluminum foil and polyethylene diaphragm to the inner surface of the polyethylene diaphragm layer to form a migrating static dissipative inner layer. This prevents the static dissipation function of the packaging film bag from being lost due to friction during use, ensuring a long-lasting static dissipation function. The wetting agent can also absorb trace moisture within the packaging bag to form a static dissipative channel, effectively isolating items from external static fields, preventing static electricity from building up within the bag, and protecting items from static hazards. It is suitable for static-sensitive electronic components such as PCBs and LEDs. It protects electrically sensitive components from potential electrostatic hazards to the greatest extent possible; the middle layer is a porous aluminum foil, which provides excellent anti-static and electrostatic shielding properties; the inner and outer surfaces are made of static-eliminating materials to prevent static electricity from being generated inside the bag; it can be used for vacuum packaging of products; purification shielding bags can meet high standards for purification and dust-free conditions; it is suitable for packaging various PC boards, IC integrated circuits, electronic components, storage, LCD / LED liquid crystal screens and other industries. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic diagram of the bag wall structure of the anti-static shielding and moisture-proof packaging film bag disclosed in the present invention. DETAILED DESCRIPTION

[0020] The present invention is described below with specific examples, but is not intended to be limiting of the present invention. Example 1

[0021] Materials and equipment: Lanzhou Vacuum Equipment ZZD-2050 evaporation coating machine; Xinshida laminating machine WRJi5-1000A; Lifei 2400 automatic die-cutting machine; porous aluminum foil WHL04 with a thickness of 0.05mm, a pore size of 10μm, and a pore density of 400 / cm 2Full-surface microporous aluminum foil; ABT-079 oil-based ATO transparent acrylic antistatic coating; Kangda WD8257-2A / B two-component solvent-free polyurethane laminating adhesive, 100 parts A and 75 parts B; Xinshida WRJ5-2 adhesive mixer; Hai'an Petrochemical Plant B-1 bis(β-hydroxyethyl) stearylamine; Sinoma polyethylene diaphragm layer with a porosity of 40%, a thickness of 9μm, and an areal density of 4.1g / m2. 2 .

[0022] The production method of an anti-static shielding and moisture-proof packaging film bag comprises the following steps: a. extruding and casting Yizheng FG604 PET film-grade chips into PET film, and then aluminum-plating the upper surface of the PET film to obtain an aluminum-plated polyester layer 2, and then coating the upper surface of the aluminum-plated polyester layer to form a conductive static dissipative surface layer 1, to obtain an aluminum-plated and coated PET film, wherein the PET film-grade chips contain 0.3 wt% of a migratable wetting agent, wherein the wetting agent is bis(β-hydroxyethyl) stearylamine, and the extrusion casting molding process comprises a processing temperature of 270°C, a cooling treatment, extrusion from a die head at a temperature of 285°C, and direct casting onto a cold roller, after the sheet is peeled off the cold roller, the temperature reaches 40°C, and then the sheet is stretched into a thick sheet by a longitudinal infrared stretching roller heated to 90°C and a stretch ratio of 3.3, and then enters a transverse box with a stretching temperature of 115°C and a heat setting treatment of a stretch ratio of 3.3 and a temperature of 230°C to form a film, and the PET aluminum plating process comprises using Φ1.5 mm aluminum wire, a boron nitride evaporation boat, and an evaporation chamber with a vacuum degree of 7×10 -2 Pa, evaporation boat current is 700A, voltage is 7V, wire feeding speed is 0.8m / min, PET film winding speed is 400m / min; b. Solvent-free lamination: the dried aluminum-plated and coated PET film is compounded with the porous aluminum foil (3) and the polyethylene diaphragm layer (4) using a solvent-free three-layer laminating machine under the laminating process, the laminating process is 3 layers, the solvent-free adhesive coating amount is 0.8g / m 2 , coating temperature 45℃, composite temperature 35℃, composite speed 300m / min, solvent-free adhesive is two-component solvent-free polyurethane laminating adhesive; c. winding and aging: winding speed 130m / min, winding tension 140N, after winding, aging for 18h at a temperature of 40℃ and a relative humidity of 50% to obtain an anti-static shielding and moisture-proof packaging film; d. The anti-static shielding and moisture-proof packaging film bag-making machine makes bags.

[0023] like Figure 1As shown, the anti-static shielding and moisture-proof packaging film bag comprises a conductive static dissipative surface layer 1, an aluminized polyester layer 2, a porous aluminum foil 3, a polyethylene diaphragm layer 4, and a migration static dissipative inner layer 5, which are arranged in sequence from the outside to the inside; the aluminum layer thickness of the aluminized polyester layer 2 is 30 nm, and the total thickness of the aluminized polyester layer 2 is 25 μm; the conductive static dissipative surface layer (1) is 10 μm thick; the inner surface of the aluminized polyester layer 2 is compositely bonded to the outer surface of the porous aluminum foil 3; the inner surface of the porous aluminum foil 3 is compositely bonded to the outer surface of the polyethylene diaphragm layer 4; the aluminized polyester layer 2 is made by aluminum plating a PET film; the conductive static dissipative surface layer 1 is formed by applying a conductive electrostatic coating on the outer side of the aluminized polyester layer 2 and then curing it; the PET film contains 0.3 wt% of a migratable wetting agent, and the wetting agent is bis (β-hydroxyethyl) coconut amine; the wetting agent migrates to the inner surface of the polyethylene diaphragm layer 4 through the porous aluminum foil and the polyethylene diaphragm layer 4 to form the migration static dissipative inner layer 5.

[0024] Product Performance: The outer surface is clean, free of impurities, dust, or oil; free of process defects such as delamination, brittle cracks, air holes, cuts, wrinkles, scratches, etc.; free of structural defects such as unevenness, pinholes, cracks, sand holes, spots, foreign matter, fish eyes, gel spots, etc. Seal strength is 51.8N / 25mm. Puncture resistance: 36.4N on one side. Surface resistance of moisture-proof bag: The point-to-point resistance of the inner surface is 6.9×10 7 Ω (relative humidity 12%, temperature 23°C); the point-to-point resistance of the outer surface is less than 5.8×10 10 Ω. The internal induced charge is 5.4nJ at a relative humidity of 12% and a temperature of 23°C; the internal induced charge is 5.2nJ at a relative humidity of 50% and a temperature of 23°C; the water vapor transmission rate is 0.34g / m 2 24h (38°C, 90%RH), defective rate 0.03%.

[0025] Comparative Example 1

[0026] The anti-static shielding and moisture-proof packaging film bag includes a conductive static dissipative surface layer, a polyester layer, a 0.05 mm thick pure aluminum foil, and a polyethylene film layer, arranged in sequence from the outside to the inside; the polyester layer has a thickness of 25 μm; the conductive static dissipative surface layer is 10 μm thick; the inner surface of the polyester layer is compositely bonded to the outer surface of the pure aluminum foil; the inner surface of the pure aluminum foil is compositely bonded to the outer surface of the polyethylene film 4; the polyester layer is made by aluminum plating on a PET film; the conductive static dissipative surface layer is formed by applying an electrostatic conductive coating on the outside of the polyester layer and curing it; the PET film contains 0.3 wt% of a migratable wetting agent, which is bis(β-hydroxyethyl) coconut amine. The remaining processing steps are the same as in Example 1. Compared with Example 1, a polyester layer without aluminum plating, pure aluminum foil, and polyethylene film are used as raw materials.

[0027] Product Performance: The outer surface is clean, free of impurities, dust, and oil. Some may have process defects such as delamination, brittle cracks, air holes, cuts, wrinkles, and scratches. Some may have structural defects such as unevenness, pinholes, cracks, sand holes, spots, foreign matter, fish eyes, and gel spots. Seal strength: 42.5N / 25mm. Puncture resistance: 37.1N on one side. Surface resistance: 8.4×10 10 Ω (relative humidity 12%, temperature 23°C); the point-to-point resistance of the outer surface is less than 7.9×10 10 Ω. At a relative humidity of 12% and a temperature of 23°C, the internal induced charge is 6.8nJ; at a relative humidity of 50% and a temperature of 23°C, the internal induced charge is 6.4nJ; the water vapor transmission rate is 0.2g / m 2 24h (38°C, 90%RH), defective rate 0.36%.

[0028] In summary, it can be seen that the structure of the conductive static dissipative surface layer, aluminized polyester layer, porous aluminum foil, polyethylene diaphragm layer, and migration static dissipative inner layer arranged in sequence from the outside to the inside has the functions of static dissipation, sealing, heat insulation, and moisture-proof. The combined application of the aluminized layer and the porous aluminum foil greatly reduces the use of aluminum materials and reduces production costs; the use of porous aluminum foil and wetting agent can improve the adhesive infiltration, enhance the adhesion of the aluminum foil surface, reduce the use of solvent-free polyurethane laminating adhesive, and improve the composite effect; it can increase the bending softness of the film bag, which is more suitable for the use of static shielding packaging bags and reduces costs. The wetting agent increases the adhesion to the porous aluminum foil. The tensile strength of the porous aluminum foil is not significantly lower than that of the pure aluminum foil, which reduces the proportion of aluminum foil in the quality of the anti-static shielding and moisture-proof packaging film bag. After the solvent-free polyurethane laminating adhesive is cured, the wetting agent can also migrate through the porous aluminum foil and polyethylene diaphragm, and migrate to the inner surface of the polyethylene diaphragm layer to form a migrating static dissipative inner layer. The static dissipative function of the packaging film bag will not be lost due to friction during use. The static dissipative function is long-lasting and can also absorb trace moisture in the packaging bag to form a static dissipative channel, which can effectively isolate the items from the external static field and prevent static electricity from being generated in the bag. Example 2

[0029] Materials and equipment: Xinshida WRJi5-1000A laminating machine; Lifei 2400 fully automatic die-cutting machine; porous aluminum foil WHL04 with a thickness of 0.01mm, a pore size of 10μm, and a pore density of 400 / cm 2Full-surface microporous aluminum foil; Huai'an Ruifa New Materials 5030 two-component A / B solvent-free polyurethane laminating adhesive, consisting of 100 parts A and 75 parts B; oil-based ATO transparent acrylic antistatic coating PDR-079; Xinshida glue mixer WRJ5-2; Hai'an Petrochemical Plant B-2 bis(β-hydroxyethyl) coconut amine; Sinoma polyethylene diaphragm with a porosity of 45%, a thickness of 12μm, and a surface density of 4.7g / m2. 2 .

[0030] The production method of an anti-static shielding and moisture-proof packaging film bag comprises the following steps: a. extruding and casting a PET film from Yizheng FG604 PET film-grade chips, and then aluminum-plating the upper surface of the PET film to obtain an aluminum-plated polyester layer 2, and then coating the upper surface of the aluminum-plated polyester layer to form a conductive static dissipative surface layer 1, to obtain an aluminum-plated and coated PET film, wherein the PET film-grade chips contain 0.5 wt% of a migratable wetting agent, wherein the wetting agent is bis(β-hydroxyethyl) coconut amine, and the extrusion casting molding process comprises a processing temperature of 290° C., a cooling treatment, extruding from a die head at a temperature of 295° C., and directly casting onto a cold roller, wherein the temperature of the sheet reaches 60° C. after peeling off the cold roller, and then passing through a longitudinal infrared stretching roller heated to 100° C. and a stretch ratio of 4.0 to form a thick sheet, and then entering a transverse box with a stretching temperature of 125° C. and undergoing a heat setting treatment at a stretch ratio of 3.5 and a temperature of 250° C. to form a film, and the PET aluminum plating process comprises using a Φ1.5 mm aluminum wire, a boron nitride evaporation boat, and an evaporation chamber with a vacuum degree of 9×10 -2 Pa, evaporation boat current 800A, voltage 8V, wire feed speed 1.2m / min, PET film winding speed 450m / min; b. Solvent-free lamination: The dried aluminized and coated PET film was laminated with porous aluminum foil 3 and polyethylene diaphragm layer 4 using a solvent-free three-layer laminating machine under a laminating process with 3 laminating layers and a solvent-free adhesive coating weight of 1g / m 2 , coating temperature 55℃, composite temperature 45℃, composite speed 500m / min, solvent-free adhesive is two-component solvent-free polyurethane laminating adhesive; c. winding and aging: winding speed 150m / min, winding tension 170N, after winding, aging for 24h at a temperature of 50℃ and relative humidity of 75% to obtain anti-static shielding and moisture-proof packaging film; d. Anti-static shielding and moisture-proof packaging film bag making machine makes bags.

[0031] like Figure 1As shown, the above-mentioned anti-static shielding and moisture-proof packaging film bag includes a conductive static dissipative surface layer 1, an aluminized polyester layer 2, a porous aluminum foil 3, a polyethylene diaphragm layer 4, and a migrating static dissipative inner layer 5, which are arranged in sequence from the outside to the inside; the aluminum layer thickness of the aluminized polyester layer 2 is 40nm, and the total thickness of the aluminized polyester layer 2 is 30μm; the conductive static dissipative surface layer 1 is 15μm thick; the inner surface of the aluminized polyester layer 2 is compositely bonded to the outer surface of the porous aluminum foil 3; the inner surface of the porous aluminum foil 3 is compositely bonded to the outer surface of the polyethylene diaphragm layer 4; the aluminized polyester layer 2 is made by aluminum plating a PET film; the conductive static dissipative surface layer 1 is formed by applying a conductive electrostatic paint on the outer side of the aluminized polyester layer 2 and then curing it; the PET film contains 0.5wt% of a migratable wetting agent; the wetting agent migrates to the inner surface of the polyethylene diaphragm layer 4 through the porous aluminum foil and the polyethylene diaphragm layer 4 to form the migrating static dissipative inner layer 5.

[0032] Product Performance: The outer surface is clean, free of impurities, dust, and oil; free of process defects such as delamination, brittle cracks, air holes, cuts, wrinkles, and scratches; and free of structural defects such as unevenness, pinholes, cracks, sand holes, spots, foreign matter, fish eyes, and gel spots. Seal strength: 40.5N / 25mm. Puncture resistance: 27.2N per side. Surface resistance: Surface resistance of moisture-proof bag: Point-to-point resistance of the inner surface is 7.4×10 8 Ω (relative humidity 12%, temperature 23°C); the point-to-point resistance of the outer surface is less than 1.2×10 9 Ω. The induced charge is 6.4nJ at a relative humidity of 12% and a temperature of 23°C; the induced charge is 6.2nJ at a relative humidity of 50% and a temperature of 23°C; the water vapor transmission rate is 0.26g / m 2 24h (38°C, 90%RH), defective rate 0.02%.

[0033] Note: Refer to the following standards for testing: GB / T39588-2020 Requirements and test methods for electrostatic shielding packaging bags; T / ZSECA005-2020 Requirements and test methods for electrostatic shielding packaging bags.

Claims

1. An anti-static shielding and moisture-proof packaging film bag, characterized in that: The anti-static shielding and moisture-proof packaging film bag comprises a conductive static dissipative surface layer (1), an aluminized polyester layer (2), a porous aluminum foil (3), a polyethylene diaphragm layer (4), and a migration static dissipative inner layer (5) arranged in sequence from the outside to the inside; the inner surface of the aluminized polyester layer (2) is compositely bonded to the outer surface of the porous aluminum foil (3); the porous aluminum foil (3) has a thickness of 0.01 to 0.05 mm, a pore size of 5 to 10 μm, and a pore density of 400 to 500 pores / cm 2 The inner surface of the porous aluminum foil (3) is compositely bonded to the outer surface of the polyethylene diaphragm layer (4); the aluminum-plated polyester layer (2) is made by aluminum-plating a PET film; the conductive static dissipative surface layer (1) is formed by applying a conductive static coating on the outer side of the aluminum-plated polyester layer (2) and curing it; the PET film contains 0.3-0.5 wt% of a migratable wetting agent, the wetting agent being one of stearic acid diethanolamine or N-dodecylethanolamine; the wetting agent migrates through the porous aluminum foil and the polyethylene diaphragm layer (4) to the inner surface of the polyethylene diaphragm layer (4) to form a migratable static dissipative inner layer (5); the polyethylene diaphragm layer (4) has a porosity of 40%-45%, a thickness of 9-12 μm, and a surface density of 4.1-4.7 g / m 2 .

2. The anti-static shielding and moisture-proof packaging film bag according to claim 1, characterized in that: The thickness of the aluminum layer of the aluminum-plated polyester layer (2) is 30 to 40 nm, and the total thickness of the aluminum-plated polyester layer (2) is 25 μm to 30 μm.

3. The anti-static shielding and moisture-proof packaging film bag according to claim 1, characterized in that: The conductive static dissipative surface layer (1) has a thickness of 10 to 15 μm.

4. The method for producing an anti-static shielding and moisture-proof packaging film bag according to claim 1, characterized in that: The following steps are involved: a. After PET film-grade slices are extruded and cast into PET film, aluminum is plated on the upper surface of the PET film to obtain an aluminum-plated polyester layer (2), and then the upper surface of the aluminum-plated polyester layer is coated to form a conductive static dissipative surface layer (1), thereby obtaining an aluminum-plated and coated PET film, wherein the PET film-grade slices contain 0.3-0.5 wt% of a migratable wetting agent, wherein the wetting agent is one of stearic acid diethanolamine or N-dodecylethanolamine; b. Solvent-free lamination: the dried aluminum-plated and coated PET film is compounded with a porous aluminum foil (3) and a polyethylene diaphragm layer (4) using a solvent-free three-layer laminating machine under a laminating process; c. Winding and aging: the winding speed is 130-150 m / min and the winding tension is 140-170 N. After winding, the film is aged for 18-24 hours at a temperature of 40-50° C. and a relative humidity of 50%-75% to obtain an antistatic shielding and moisture-proof packaging film; d. The anti-static shielding and moisture-proof packaging film bag making machine makes bags.

5. The method for producing an anti-static shielding and moisture-proof packaging film bag according to claim 4, characterized in that: The extrusion casting process in step a comprises the following steps: a processing temperature of 270-290° C., an extrusion die temperature of 285-295° C., direct casting onto a cold roller to a temperature of 40-60° C.; a longitudinal stretching temperature of 90-100° C., a stretch ratio of 3.3-4.0; a transverse stretching temperature of 115-125° C., a stretch ratio of 3.3-3.5; and a heat setting treatment at a temperature of 230-250° C. to form a film.

6. The method for producing an anti-static shielding and moisture-proof packaging film bag according to claim 4, characterized in that: The PET aluminum plating process in step a is as follows: the vacuum degree of the evaporation chamber is 7×10- 2 Pa~9×10- 2 Pa, evaporation boat current is 700-800A, voltage is 7-8V, wire feeding speed is 0.8-1.2m / min, and PET film winding speed is 400-450m / min.

7. The method for producing an anti-static shielding and moisture-proof packaging film bag according to claim 4, characterized in that: The composite process in step b is as follows: the number of composite layers is 3, the coating amount of solvent-free adhesive is 0.8-1g / m 2 , coating temperature 45 ~ 55 ℃, composite temperature 35 ~ 45 ℃, composite speed 300 ~ 500m / min, the solvent-free adhesive is a two-component solvent-free polyurethane laminating adhesive.

Images