Food packaging bag

The material and design choices for snack packaging bags are diverse. Below is a detailed analysis of snack packaging bags:

Design Types

1. Three-side seal bag: Sealed on three sides with one side left open for product filling. This is the most common type of food packaging. The three-side seal bag has two side seams and one top seam; it can be folded or unfolded. When folded, it can stand upright on shelves. Three-side seal bags are suitable for various products, including snacks, seasonings, face masks, and pet treats.

2. Stand-up pouch: As the name suggests, this type of food packaging bag can stand upright on shelves, allowing for better and more attractive display. Stand-up pouches are widely used for packaging snacks, jelly, seasonings, and cleaning products. These bags not only have good airtightness but also effectively maintain product freshness.

3. Quad-seal bag: Developed based on the stand-up pouch, this bag has a square bottom and can stand upright. Quad-seal bags have a more three-dimensional feel with three surfaces (front, side, and bottom), providing more printing and product display space than stand-up pouches, attracting more consumer attention. Quad-seal bags are suitable for packaging coffee beans, tea leaves, nuts, dried fruits, and pet treats.

4. Stand-up zipper pouch: Based on the stand-up pouch, it adds a resealable zipper at the top for convenient storage and consumption, preventing moisture damage. This packaging is widely used in the food industry, especially for snacks, puffed foods, meat products, and instant coffee. It allows consumers to enjoy the product anytime while extending shelf life and providing protection against water, moisture, and insects.

5. Back seal bag: A type of packaging bag sealed at the back edge. It has no opening and requires manual tearing. Commonly used for small packages of powder, candy, and dairy products. The back seal bag with gussets is cleverly designed with sides folded inward, forming a unique side packaging style. This bag effectively reduces exposed areas on both sides, saves storage space, and makes the overall appearance more elegant. Additionally, its large capacity is highly praised, making it very suitable for packaging baked goods, convenience foods, and frozen foods.

6. Spout pouch: Composed of a separate spout and a stand-up pouch, it is an ideal choice for packaging liquids and powders such as juice, beverages, milk, and soy milk. This bag is especially suitable for packaging liquid and powder products. Its design facilitates food transportation and storage, and its practicality and convenience are widely appreciated.

7. Irregular shape bag: Breaking the traditional square design, it can showcase unique shapes based on product characteristics. Irregular shape bags are suitable for candy, snacks, ready-to-drink beverages, and specialty products, adding unique charm to the product.

Material Choices

1. BOPP/CPP double-layer composite material: Oil-resistant, high transparency, good stiffness. Suitable for biscuits, candy, and light foods.

2. BOPP/VMCPP double-layer composite material: Oil-resistant, oxygen barrier, light-blocking, good stiffness. Suitable for potato chips, fried foods, and dried goods.

3. BOPP/LDPE double-layer composite material: Cold-resistant, good low-temperature heat seal strength. Suitable for instant noodles, snacks, frozen desserts, and powder packaging.

4. BOPP/VMCPP/LLDPE three-layer composite material: Moisture-proof, oxygen barrier, light-blocking. Suitable for rice-based snacks and tea leaves.

5. PET/CPP double-layer composite material: Moisture-proof, aroma retention, high temperature resistant. Suitable for alcoholic beverages, aromatic foods, and frozen buns.

6. Aluminum foil bag: Suitable for packaging products that should not be exposed to moisture and require high dryness, such as powdered foods or medicines, food additives, vacuum-packed cooked foods, and meats.

When choosing snack packaging bags, besides design and material, the following points should also be considered:

1. Safety: Ensure the packaging bag meets food safety standards and is non-toxic and harmless.

2. Environmental protection: Choose biodegradable or easily recyclable packaging materials to reduce environmental pollution.

3. Printing quality: The printed information on the packaging bag should be clear, accurate, and comply with relevant regulations.