What is a 3-side seal pouch and why should businesses care?

3-side seal pouches are flexible packaging bags sealed on three sides—both sides and the bottom—leaving only one open end for filling products. This type of pouch is widely used thanks to its airtight design, excellent moisture resistance, and sleek appearance.

Key advantages of 3-side seal pouches:

• High preservation capability: Airtight seal prevents moisture, odor, and oxygen from entering.
• Cost-effective and easy to manufacture.
• Versatile for many industries: food, pharmaceuticals, cosmetics, agriculture, chemicals...
• Highly customizable for branding and packaging purposes.

3-side seal pouches are increasingly favored by businesses thanks to their flexibility, convenience, and economic benefits in packaging and logistics.

Suitable film structures for 3-side seal pouches

Practical applications of 3-side seal pouches

Thanks to their durability and barrier properties, 3-side seal pouches are widely applied across industries:

1. Food industry

• Coffee beans and ground coffee
• Cereal, oatmeal, starch powder, grain mixes
• Candy, snack packs, powdered foods

2. Pharmaceutical industry

• Single-use powder or liquid medications
• Herbal remedies and supplements

3. Cosmetics & personal care

• Facial masks, cleansers, sample creams
• Travel-sized shampoo, lotion, and skincare samples

4. Agriculture & agrochemicals

• Seeds, fertilizers
• Pesticides in powder or liquid form

5. Industrial products

• Electronics, spare parts, small machinery
• Moisture-sensitive products

Outstanding benefits of 3-side seal pouches

Standard production process of 3-side seal pouches

At professional manufacturers like Long Vũ Packaging, 3-side seal pouches go through a strict and standardized process:

1. Design & prepress: Based on product requirements and brand identity.
2. Printing: Surface or reverse printing with gravure, offset, or digital methods.
3. Lamination: Dry lamination using food-safe adhesives.
4. Curing (heat aging): Stabilizes adhesive bonding.
5. Slitting: Cutting large film rolls into smaller widths.
6. Bag making: Sealing sides, forming pouch shape, adding optional features.

Customization options for business needs

3-side seal pouches can be tailored for specific product and industry requirements:

• Size: Customized to fit contents by volume or weight
• Film structure: 2-layer, 3-layer, or 4-layer combinations
• Printing options: Gravure, digital, UV-spot printing
• Add-ons: Tear notches, Euro-holes, zippers, valves, spouts...
• Industry-specific treatment: food-safe, pharma-grade, anti-static, etc.

Key considerations when choosing a packaging supplier

To ensure packaging quality and compatibility, businesses should partner with:

• Industry-experienced suppliers with application-specific knowledge
• Modern facilities equipped with advanced printing, laminating, and converting lines
• Strict quality control protocols from raw material to finished product
• Expert consulting team: Suggests optimal structures, cost-saving options
• Flexible services: Low MOQ, sample prototyping, short lead times

Long Vu Laminated Film Packaging - A reliable partner in manufacturing and supplying three-sided bags

With more than 10 years of experience in the laminated film packaging industry, Long Vu Packaging is a companion of hundreds of domestic and foreign enterprises.

We commit to:

• In-depth consulting on suitable structures for each industry
• Production meets export standards, sharp printing, fast delivery time
• Flexible small - large orders, free test samples before ordering

1. Laminated film bag production process at Long Vu Packaging

At Long Vu, we provide a complete laminated film bag processing service from consulting to delivery:

• Consulting on choosing suitable materials for the product
• Designing printed samples & testing
• Printing - laminating - creating bags - quality checking
• Packing and shipping to the destination

2. Why choose Long Vu Packaging?

• Direct packaging factory, no intermediaries
• Accept printing small quantities, support startups, small businesses
• Free design consultation, suitable for each type of product
• Committed to quality, correct model - on schedule

Three-sided bags not only help save costs but also enhance professionalism in product packaging. If you are looking for a reputable, flexible and fast packaging manufacturer, Long Vu is ready to accompany you.

Contact now for detailed advice and receive a suitable quote for your product line!

FAQ

1. What is the difference between a three-sided bag and a stand-up bottom bag or a zipper bag?

Three-sided bags have the simplest design with 3 welding lines (2 sides and 1 bottom), while a stand-up bottom bag has an extended bottom to help the bag stand on its own, and a zipper bag has an additional zipper to open and close multiple times. Depending on the purpose of use and the form of display, businesses can choose the appropriate type of bag.

2. Can three-sided bags be used for products that need to be vacuum-sealed?

Yes. If the product needs to be vacuum-sealed, you can choose PA/PE film material - which is flexible, strong and has good sealing ability, suitable for products such as fresh food, seafood, frozen food, etc.

3. Is there a minimum quantity required for printing three-sided bags?

Usually, the factory requires a minimum of about 5,000 - 10,000 bags depending on size and material. However, at Long Vu, we support flexible orders - even small quantities - to accompany new businesses or product testing units.

4. How long does it take to produce three-sided bags and deliver them?

From the time the design is approved, the production time usually ranges from 7 - 15 working days, depending on the quantity and complexity. Urgent orders can be prioritized for quick processing if notified in advance.

5. Do you support the design of three-sided printed bags?

Yes. Long Vu's design team will support you with ideas, design print files and advise on image layout - content to ensure the bag is both aesthetically pleasing and meets printing standards.