LDPE Flat Bag – Flexible, Customizable, and Food-Safe

In the world of packaging, flexibility, strength, and clarity matter — especially when dealing with perishable goods or sensitive items. The LDPE Flat Bag or flat poly bag is a tried-and-tested solution trusted by businesses across food, retail, medical, and industrial sectors. At VietPak, we specialize in high-quality, customizable LDPE flat bags manufactured to meet both practical and regulatory standards.

Whether you’re packaging food, parts, textiles, or printed materials, our LDPE flat bags offer excellent clarity, strong sealing properties, and versatile design features to suit your exact needs.

1. Material: What Is LDPE?

LDPE (Low-Density Polyethylene) is a soft, flexible, and food-safe thermoplastic material. It is widely used in flexible packaging because of its excellent balance of clarity, strength, and processability. Unlike HDPE (High-Density Polyethylene), LDPE has a lower density, which makes it more pliable and suitable for thinner films.

Benefits of LDPE material:

• ✅ High clarity and gloss for product visibility

• ✅ Superior heat-sealing capabilities

• ✅ Chemical resistance

• ✅ Non-toxic and safe for food contact

• ✅ Tear and puncture resistance (especially in higher micron thickness)

LDPE is 100% recyclable and often used in food-grade packaging due to its non-reactive properties. At VietPak, we source and manufacture our LDPE bags with strict quality control to ensure consistency and compliance.

2. Custom Printing

To maximize your brand’s visibility, LDPE flat bags can be printed in up to 12 vibrant colors using high-resolution flexographic or gravure printing techniques. Whether you need a logo, product details, safety warnings, or decorative branding, we deliver crystal-clear prints on transparent or opaque film.

Customization options include:

• Full-color surface or reverse printing

• One-side or both-side print

• Barcode and batch coding

• Transparent, matte, or tinted background

Our advanced printing capabilities ensure your packaging looks premium while staying functional — ideal for retail shelves, export packaging, or promotional giveaways.

3. Other Features – Bottom & Side Gussets

While LDPE flat bags are primarily known for their straightforward, pillow-like shape, they are also available with added features to improve storage and usability:

Bottom Gusset

• Expands the base to accommodate bulky items

• Allows the bag to stand upright, improving shelf presence

Side Gusset

• Expands the sides to create more internal space

• Ideal for irregular-shaped or voluminous products

Gusseted LDPE bags are particularly popular in food service, hardware packaging, and garment industries, where both space and structure matter.

Additionally, we offer optional features such as:

• Resealable adhesive flaps

• Vent holes for air release

• Perforation or tear lines for easy opening

• Euro holes for hanging display

All features can be tailored to your product type, filling method, and storage needs.

4. Common Sizes and Thickness (Microns)

VietPak’s LDPE flat bags come in a wide range of sizes and film thicknesses to suit different packaging applications — from ultra-light liners to heavy-duty industrial bags.

We offer custom sizes based on your requirements, ranging from small 10 x 15 cm bags to large 60 x 100 cm flat or gusseted styles. Whether you need a snug wrap or a spacious bag, we can produce the perfect size and thickness to match your product’s shape and weight.

5. Main Uses of LDPE Flat Bags

LDPE flat bags are among the most versatile flexible packaging options available. Here are some of the most common applications:

Food Packaging

• Fresh produce, bread, meat, seafood, and frozen food

• Fully food-contact approved material

• Optional micro-perforation for breathability

Retail & Wholesale

• Apparel, electronics, accessories

• Protection from dust, fingerprints, and moisture

Medical & Hygiene Products

• Sterile goods, gloves, masks, wipes

• Cleanroom-safe options available on request

Industrial & Export

• Spare parts, metal components, kits

• Often combined with desiccants or inner liners

LDPE bags are also ideal for inner packaging inside boxes, cartons, or bins to create a moisture barrier and keep items clean during storage or transit.

6. Is LDPE Flat Bag Micron Safe?

Yes — when produced according to industry standards, LDPE flat bags are considered safe across a wide range of micron levels.

Here’s what makes them “micron safe”:

• ✅ No toxic migration: Properly manufactured LDPE does not leach chemicals, even in thinner gauges.

• ✅ Food-grade certification: At VietPak, we use only food-contact approved raw materials, suitable even for direct contact with meat and bakery items.

• ✅ Flexible gauge control: Thinner films (12–20 microns) are suitable for low-impact use; thicker options offer extra durability for heavier contents.

However, it’s important to match the micron thickness to the product weight and handling to avoid breakage or stretching. Our team will advise you on the right specs based on your product and industry.

Conclusion: VietPak’s LDPE Flat Bag – Smart, Safe, and Scalable

Whether you’re packaging croissants or car parts, VietPak’s LDPE flat bags offer unbeatable versatility. From food-safe materials and high-resolution printing to custom gussets and micron control, our bags are engineered for performance and appearance.

Designed for businesses that care about quality, hygiene, and brand visibility, our LDPE flat bags can be tailored in every aspect — material, size, print, and features — to suit your needs.

📦 Ready to Order or Customize?

Let our team help you design the perfect LDPE packaging solution.

📧 info@vietpak.vn
🌐 www.vietpak.vn
📍 Proudly serving sustainable packaging needs across Vietnam and beyond.