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Food-grade three-side seal moisture-proof plastic bags are high-standard packaging products specifically designed for food storage and packaging. Made of food-grade plastic materials and featuring a three-side heat-sealed structure, they possess excellent moisture-proof, sealing, and hygienic properties, effectively protecting food from air, moisture, dust, and external contamination, ensuring food remains clean, safe, and fresh during transportation, display, and storage.
Food contact safety is one of the core advantages of this packaging bag. The bag body uses food-grade PE, PET, or composite film materials, free of harmful substances, odorless, and with no migration risk, suitable for direct contact with various foods. The material surface is smooth and clean, oil- and water-resistant, and will not chemically react with food, ensuring greater consumer peace of mind.
The three-side seal design forms a stable structure through high-temperature heat sealing of three sides, possessing the following characteristics:
Strong Sealing: Effectively prevents air from entering, reducing oxidation and spoilage.
Smooth Structure: The bag is evenly stressed, making it less prone to breakage or leaks.
Suitable for Various Thicknesses: Different film thicknesses can be selected according to food type, enhancing durability.
This structure is particularly suitable for food packaging scenarios requiring high sealing and hygiene standards.
Moisture-proof performance is suitable for:
Dried goods (nuts, beans, grains)
Baked goods (biscuits, pastries)
Powders (seasoning powder, milk powder)
Frozen foods (meat, seafood)
Whether for home storage or commercial packaging, it maintains the original flavor and taste of food.
Its advantages include: dustproof, oil-proof, and odor-proof; suitable for direct contact with food; and can be stored in refrigerated, frozen, and ambient temperatures. This makes it an ideal choice for catering, food processing plants, retailers, and home users.
Food-grade three-side seal moisture-proof plastic bags are suitable for various food types and industries: Snack packaging: potato chips, nuts, candy; Dry goods packaging: tea, spices, grains; Frozen foods: meat, seafood, quick-frozen foods; Baked goods: biscuits, cookies, cake slices; Food delivery: semi-finished products, seasonings, snacks. Its versatility makes it suitable for retail, wholesale, e-commerce, and food processing industries.
To meet the diverse business needs of our clients, we offer a variety of customization services for our packaging bags:
Size Customization (Small, Medium, Large Packaging)
Material Selection (PE, PET, Aluminum Foil Composite, etc.)
Thickness Customization (Based on Food Weight and Intended Use)
Printing Customization (LOGO, Patterns, Brand Information)
Opening Methods (Easy-Tear Opening, Hanging Holes, Sealing Strips)
Customized designs enhance brand image and product display effectiveness.
Food-grade safe materials, suitable for direct contact with food
Stable three-side seal structure, strong sealing performance
Excellent moisture barrier properties, keeping food dry and fresh
Clean and hygienic, suitable for various storage environments
Wide range of applications, meeting the packaging needs of multiple industries
Customization supported, enhancing brand competitiveness

Food-grade three-side seal moisture-proof plastic bags are high-standard packaging products specifically designed for food storage and packaging. Made of food-grade plastic materials and featuring a three-side heat-sealed structure, they possess excellent moisture-proof, sealing, and hygienic properties, effectively protecting food from air, moisture, dust, and external contamination, ensuring food remains clean, safe, and fresh during transportation, display, and storage.
Food contact safety is one of the core advantages of this packaging bag. The bag body uses food-grade PE, PET, or composite film materials, free of harmful substances, odorless, and with no migration risk, suitable for direct contact with various foods. The material surface is smooth and clean, oil- and water-resistant, and will not chemically react with food, ensuring greater consumer peace of mind.
The three-side seal design forms a stable structure through high-temperature heat sealing of three sides, possessing the following characteristics:
Strong Sealing: Effectively prevents air from entering, reducing oxidation and spoilage.
Smooth Structure: The bag is evenly stressed, making it less prone to breakage or leaks.
Suitable for Various Thicknesses: Different film thicknesses can be selected according to food type, enhancing durability.
This structure is particularly suitable for food packaging scenarios requiring high sealing and hygiene standards.
Moisture-proof performance is suitable for:
Dried goods (nuts, beans, grains)
Baked goods (biscuits, pastries)
Powders (seasoning powder, milk powder)
Frozen foods (meat, seafood)
Whether for home storage or commercial packaging, it maintains the original flavor and taste of food.
Its advantages include: dustproof, oil-proof, and odor-proof; suitable for direct contact with food; and can be stored in refrigerated, frozen, and ambient temperatures. This makes it an ideal choice for catering, food processing plants, retailers, and home users.
Food-grade three-side seal moisture-proof plastic bags are suitable for various food types and industries: Snack packaging: potato chips, nuts, candy; Dry goods packaging: tea, spices, grains; Frozen foods: meat, seafood, quick-frozen foods; Baked goods: biscuits, cookies, cake slices; Food delivery: semi-finished products, seasonings, snacks. Its versatility makes it suitable for retail, wholesale, e-commerce, and food processing industries.
To meet the diverse business needs of our clients, we offer a variety of customization services for our packaging bags:
Size Customization (Small, Medium, Large Packaging)
Material Selection (PE, PET, Aluminum Foil Composite, etc.)
Thickness Customization (Based on Food Weight and Intended Use)
Printing Customization (LOGO, Patterns, Brand Information)
Opening Methods (Easy-Tear Opening, Hanging Holes, Sealing Strips)
Customized designs enhance brand image and product display effectiveness.
Food-grade safe materials, suitable for direct contact with food
Stable three-side seal structure, strong sealing performance
Excellent moisture barrier properties, keeping food dry and fresh
Clean and hygienic, suitable for various storage environments
Wide range of applications, meeting the packaging needs of multiple industries
Customization supported, enhancing brand competitiveness
