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Where are multi-layer vacuum inner bags used
source：m.g36x.com | Release time：2025-05-27
Multi layer vacuum inner bags are widely used in scenarios that require long-term storage, moisture resistance, oxidation resistance, and pollution prevention due to their high barrier properties, puncture resistance, corrosion resistance, and good sealing performance. The following are its main application areas and characteristics:
1、 Food and agricultural products field
1. Meat and aquatic products
Application scenario: Vacuum packaging of fresh meat (such as beef and mutton), poultry, and aquatic products (such as shrimp and fish).
Functional advantages:
Block oxygen, prevent bacterial growth (such as lactic acid bacteria and pseudomonas), and extend shelf life (2-3 times longer than regular packaging).
Multi layer structures (such as PET/PA/PE) can withstand freezing environments (-30 ℃), preventing packaging bag breakage and food contamination.
Case: Imported cold chain beef is often packaged in multi-layer vacuum inner bags, which are used in conjunction with cold chain transportation to achieve freshness from pasture to table.
2. Dry goods and baked goods
Application scenarios: Moisture resistant storage of nuts (such as walnuts and almonds), tea leaves, coffee beans, and pastries (such as mooncakes and bread).
Functional advantages:
High barrier materials (such as aluminum foil layer) block water vapor and light, preventing oil oxidation and rancidity (peroxide value ≤ 0.25g/100g).
Durable and puncture resistant (puncture force ≥ 50N) to prevent sharp ingredients (such as fruit shells) from puncturing the packaging bag and causing air leakage.
2、 In the field of pharmaceuticals and health products
1. Pharmaceutical raw materials and preparations
Application scenarios: Vacuum packaging of active pharmaceutical ingredients (such as antibiotic powders), traditional Chinese medicine decoction pieces, and medical dressings.
Functional advantages:
The material meets the national standards for drug packaging (such as YBB standards), with no solvent residue (benzene solvent residue ≤ 0.01mg/m 2), to avoid contaminating the drug.
Multi layer composite structures (such as PET/PE+coating) can withstand high temperature sterilization (such as 121 ℃ wet heat sterilization) and maintain packaging integrity.
2. Health products and medical devices
Application scenario: Aseptic packaging of probiotic powder and disposable sterile instruments (such as syringes and surgical knives).
Functional advantages:
The vacuum environment prevents the oxidation and failure of health product ingredients (such as vitamin C), while meeting the sterile barrier requirements of medical devices (microbial penetration probability ≤ 10 ??).
3、 Industrial and chemical fields
1. Electronic components and precision instruments
Application scenarios: Moisture and oxidation resistant packaging for semiconductor chips, PCB circuit boards, and optical lenses.
Functional advantages:
Anti static materials (surface resistance of 10 ? -10 ? Ω) prevent static electricity from damaging precision components, and cooperate with vacuum environment to prevent metal pins from rusting.
Chemical resistance (such as resistance to flux volatiles) protects the long-term storage performance of components (storage period can reach 2-5 years).
2. Chemical raw materials and hazardous materials
Application scenarios: Packaging of corrosive liquids (such as sulfuric acid, sodium hydroxide) and volatile solvents (such as ethanol, acetone).
Functional advantages:
The inner layer is made of corrosion-resistant materials (such as EVOH, PCTFE), which are resistant to acid and alkali (pH 1-14), to prevent the packaging from being corroded and leaked by chemicals.
Multi layer structure enhances impact resistance (no rupture after drop test ≥ 1.5 meters) and meets hazardous material transportation standards (such as UN certification).
4、 In the field of daily necessities and cosmetics
1. Cosmetics raw materials and finished products
Application scenario: packaging of raw materials (such as plant extracts) for essential oil, essence liquid and cream cosmetics.
Functional advantages:
Light avoidance (light transmittance ≤ 1%) and sealing prevent active ingredients (such as vitamin A and collagen) from undergoing photo thermal oxidation and deterioration.
Environmentally friendly materials (such as recyclable PET/PE) are in line with the trend of green cosmetics packaging.
2. Household daily necessities
Application scenario: Compression vacuum packaging of down products (such as down jackets and duvet) and sponge products.
Functional advantages:
Compressing the volume (compression ratio can reach 1:3-1:5) saves storage and transportation space, and restores the original state through air rebound after opening.
5、 Special scenario applications
1. Aerospace and military industries
Application scenarios: Long term storage packaging for aerospace food, military emergency rations, and precision instrument accessories.
Functional advantages:
Resistant to extreme temperatures (-50 ℃ to+80 ℃) and high vacuum environments (vacuum degree ≤ 10 ? 3 Pa), suitable for space or harsh outdoor environments.
The material has a flame retardant rating of UL94 V-0, meeting fire safety requirements.
2. Protection of cultural relics and archives
Application scenario: Insect and mold prevention preservation of ancient books, calligraphy and painting, silk cultural relics.
Functional advantages:
Vacuum environment isolates oxygen and pests (such as catfish and book lice), and is filled with inert gas (such as nitrogen) to prevent microbial growth.
1、 Food and agricultural products field
1. Meat and aquatic products
Application scenario: Vacuum packaging of fresh meat (such as beef and mutton), poultry, and aquatic products (such as shrimp and fish).
Functional advantages:
Block oxygen, prevent bacterial growth (such as lactic acid bacteria and pseudomonas), and extend shelf life (2-3 times longer than regular packaging).
Multi layer structures (such as PET/PA/PE) can withstand freezing environments (-30 ℃), preventing packaging bag breakage and food contamination.
Case: Imported cold chain beef is often packaged in multi-layer vacuum inner bags, which are used in conjunction with cold chain transportation to achieve freshness from pasture to table.
2. Dry goods and baked goods
Application scenarios: Moisture resistant storage of nuts (such as walnuts and almonds), tea leaves, coffee beans, and pastries (such as mooncakes and bread).
Functional advantages:
High barrier materials (such as aluminum foil layer) block water vapor and light, preventing oil oxidation and rancidity (peroxide value ≤ 0.25g/100g).
Durable and puncture resistant (puncture force ≥ 50N) to prevent sharp ingredients (such as fruit shells) from puncturing the packaging bag and causing air leakage.
2、 In the field of pharmaceuticals and health products
1. Pharmaceutical raw materials and preparations
Application scenarios: Vacuum packaging of active pharmaceutical ingredients (such as antibiotic powders), traditional Chinese medicine decoction pieces, and medical dressings.
Functional advantages:
The material meets the national standards for drug packaging (such as YBB standards), with no solvent residue (benzene solvent residue ≤ 0.01mg/m 2), to avoid contaminating the drug.
Multi layer composite structures (such as PET/PE+coating) can withstand high temperature sterilization (such as 121 ℃ wet heat sterilization) and maintain packaging integrity.
2. Health products and medical devices
Application scenario: Aseptic packaging of probiotic powder and disposable sterile instruments (such as syringes and surgical knives).
Functional advantages:
The vacuum environment prevents the oxidation and failure of health product ingredients (such as vitamin C), while meeting the sterile barrier requirements of medical devices (microbial penetration probability ≤ 10 ??).
3、 Industrial and chemical fields
1. Electronic components and precision instruments
Application scenarios: Moisture and oxidation resistant packaging for semiconductor chips, PCB circuit boards, and optical lenses.
Functional advantages:
Anti static materials (surface resistance of 10 ? -10 ? Ω) prevent static electricity from damaging precision components, and cooperate with vacuum environment to prevent metal pins from rusting.
Chemical resistance (such as resistance to flux volatiles) protects the long-term storage performance of components (storage period can reach 2-5 years).
2. Chemical raw materials and hazardous materials
Application scenarios: Packaging of corrosive liquids (such as sulfuric acid, sodium hydroxide) and volatile solvents (such as ethanol, acetone).
Functional advantages:
The inner layer is made of corrosion-resistant materials (such as EVOH, PCTFE), which are resistant to acid and alkali (pH 1-14), to prevent the packaging from being corroded and leaked by chemicals.
Multi layer structure enhances impact resistance (no rupture after drop test ≥ 1.5 meters) and meets hazardous material transportation standards (such as UN certification).
4、 In the field of daily necessities and cosmetics
1. Cosmetics raw materials and finished products
Application scenario: packaging of raw materials (such as plant extracts) for essential oil, essence liquid and cream cosmetics.
Functional advantages:
Light avoidance (light transmittance ≤ 1%) and sealing prevent active ingredients (such as vitamin A and collagen) from undergoing photo thermal oxidation and deterioration.
Environmentally friendly materials (such as recyclable PET/PE) are in line with the trend of green cosmetics packaging.
2. Household daily necessities
Application scenario: Compression vacuum packaging of down products (such as down jackets and duvet) and sponge products.
Functional advantages:
Compressing the volume (compression ratio can reach 1:3-1:5) saves storage and transportation space, and restores the original state through air rebound after opening.
5、 Special scenario applications
1. Aerospace and military industries
Application scenarios: Long term storage packaging for aerospace food, military emergency rations, and precision instrument accessories.
Functional advantages:
Resistant to extreme temperatures (-50 ℃ to+80 ℃) and high vacuum environments (vacuum degree ≤ 10 ? 3 Pa), suitable for space or harsh outdoor environments.
The material has a flame retardant rating of UL94 V-0, meeting fire safety requirements.
2. Protection of cultural relics and archives
Application scenario: Insect and mold prevention preservation of ancient books, calligraphy and painting, silk cultural relics.
Functional advantages:
Vacuum environment isolates oxygen and pests (such as catfish and book lice), and is filled with inert gas (such as nitrogen) to prevent microbial growth.
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