Here's an explanation of how sachets are filled and packed, focusing on the Vertical Form Fill Seal (VFFS) method. This process involves a VFFS machine that takes a flat roll of film and transforms it into individual sachets, filling them with the desired product in a continuous operation. The machine automates several key steps, including unwinding the packing material, forming the sachet, feeding and filling the product, sealing the sachet with heat, printing or embossing batch numbers, and finally, cutting and outputting the finished product. This method ensures efficiency and consistency in sachet production.

Key Points Explained:

1. Vertical Form Fill Seal (VFFS):

   • VFFS is the primary method used for filling and packing sachets.
   • A VFFS machine creates sachets from a flat roll of film in a continuous process.

2. VFFS Machine Processes:

   • The VFFS machine automates several key steps:
     • Packing Material Unwinding: The machine starts by unwinding the roll of packing material (film).
     • Sachet Forming: The film is then formed into the shape of a sachet. This usually involves folding and sealing the edges to create a pouch.
     • Product Feeding and Filling: Once the sachet is formed, the product to be packaged is fed into the sachet. The filling process is usually automated and precisely measured to ensure consistent quantities.
     • Sachet Heat Sealing: After filling, the open ends of the sachet are sealed using heat. This creates an airtight and secure package.
     • Batch Number Embossing or Printing: Batch numbers, manufacturing dates, or other relevant information are embossed or printed onto the sachet.
     • Cutting and Final Product Output: Finally, the connected sachets are cut apart to produce individual, finished sachets. These are then output for further packaging or distribution.

Summary Table:

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