Publish Time: 2025-05-16 Origin: Site
A three-side seal pouch is a flat pouch structure created by sealing three edges of the film: one side, the bottom, and the top—leaving one edge initially open for product filling. The typical sealing sequence involves: side sealing → bottom sealing → filling → top sealing. This pouch design ensures strong sealing integrity, a clean appearance, and excellent stability, making it ideal for packaging liquids, creams, gels, suspensions, and other semi-fluid products.
In a pouch packaging machine, the process starts with unwinding the roll film, which is then guided and folded to form the pouch shape. A side seal is applied first, followed by the bottom seal, forming a three-sided pouch structure with the top still open. After the product is filled into the pouch through the open top, a final heat-seal is applied to close the package.
This type of pouch is compatible with a variety of laminated film materials, such as PET/PE, NY/PE, paper-plastic, and aluminum composite films. These films offer excellent barrier properties, sealing strength, and printability. The three-side seal pouch is widely used for medium-volume packaging across many industries.
The three-side seal pouch packing machine follows a continuous and precise sequence of operations to ensure efficient, hygienic, and consistent packaging. The process can be broken down into several coordinated stages:
① Film Unwinding and Positioning
The process begins with unwinding a roll of laminated packaging film. The film passes through a series of tension rollers and alignment devices to ensure accurate positioning before pouch formation.
② Pouch Forming and Side Sealing
The flat film is folded and guided into a pouch-forming module, where the first sealing station creates the side seal using a heated sealing bar. This forms the side edge of the pouch.
③ Bottom Sealing
Next, the partially formed pouch moves to the second sealing station where the bottom seal is applied. At this point, a three-edge structure is formed, creating a pouch with one open edge at the top.
④ Pouch Opening and Product Filling
The machine's filling nozzle dispenses the product into each bag with pinpoint accuracy. This step is critical to controlling fill volumes and maintaining hygiene.
⑤ Top Sealing
Once the product is filled, the pouch is transferred to the top sealing station. The final seal is applied, closing the pouch and completing the packaging cycle.
⑥ Optional Functions
Depending on the product and your needs, the system can integrate optional functions such as date coding, tear punching or hanging hole cutting.
This entire process is managed by a programmable logic controller (PLC) with a touch screen interface, allowing operators to adjust parameters like temperature, fill volume, sealing time, and machine speed.
Three side seal pouch or sachet packing machines are widely used across industries that require precise, hygienic, and compact packaging formats. The flat pouch structure, combined with customizable features like tear notches and hang holes, makes this packaging style versatile and practical for both consumer and industrial markets.
✅ Food and Beverage Industry
These machines are commonly used to pack single-serving or medium-portion products such as:
Pure water, beverage, milk and drinking
Sauces, ketchup, and dressings
Dry spices and seasoning blends
Instant coffee or tea powders
Protein supplements
Sugar, salt, and sweeteners
✅ Cosmetics and Personal Care
Three-side seal pouches are suitable for sample packs and travel-size products, such as:
Facial masks
Shampoos and conditioners
Lotions and creams
Cosmetic powders
Hydrating fluid
✅ Pharmaceutical and Nutraceuticals
Due to their tight sealing and dosing accuracy, these pouches are often used for:
Powdered supplements
Oral rehydration salts (ORS)
Medicinal granules or herbal powders
Effervescent powders and sachet drugs
✅ Chemical and Industrial Use
The equipment is also adapted for some chemical liquids, powders and granules:
Cleaning agents
Color powder
Industrial additives
Three-side seal pouch packing machines offer several benefits that make them a popular choice for various packaging needs:
① Reliable Sealing Integrity
The three sealed edges (two sides and bottom) create a strong, leak-proof pouch structure that protects the product from contamination, moisture, and air exposure.
② Efficient Production
The machine’s straightforward sealing and filling sequence allows for high-speed operation and consistent output, supporting large-scale production demands.
③ Versatile Packaging
Suitable for a wide range of products including powders, granules, liquids, and semi-liquids, the three-side seal pouch can be customized in size and materials to meet different market requirements.
④ Compact and Space Saving
The flat pouch design optimizes storage and transportation efficiency, reducing shipping costs and shelf space.
⑤ Consumer Friendly Features
Optional additions like tear notches and hang holes improve convenience and product display, enhancing user experience and retail appeal.
Three side seal pouch packing machines offer a reliable, efficient, and versatile packaging solution across multiple industries. With strong sealing integrity, fast production speeds, and adaptability to various product types and materials, these machines help manufacturers optimize both product protection and logistics.
At IMMAY, we specialize in manufacturing high quality three side seal pouch packing machines designed to meet diverse production needs. Our equipment integrates advanced technology and precise control systems, ensuring consistent packaging quality and operational efficiency. Choosing IMMAY means partnering with a trusted manufacturer dedicated to supporting your production goals and helping you succeed in challenging markets.