Applications

Valve bags, also known as bottom-sealed bags, feature a valve opening at the top corner. The filling nozzle is inserted into the valve during packaging, and the process remains sealed. These bags are commonly used for packaging powdered materials, preventing spills and splashes. Self-sealing can be achieved with just a bottomer machine, eliminating the need for additional sealing processes.

Key benefits of valve bags:

  • Accurate weight control during packaging
  • Aesthetically pleasing
  • Easy to stack
  • No need for additional sealing, saving labor and increasing production efficiency

The Valve Bag Production Line can produce the following types of bags:

By Material
  • Paper-Plastic Composite Valve Bags
  • Kraft Paper Valve Bags
  • Multi-layer Kraft Paper Valve Bags
By Sealing Method
  • Ultrasonic Sealed Valve Bags
    Features: Strong seals, excellent sealing performance, and minimal leakage
    Recommended Application: Used in industries like construction materials, such as tile adhesive, wall putty, dry mortar, and other powdered or granular materials.
  • Self-Closing Valve Bags
    Features: Self-closing using the weight of the material inside the bag, no need for additional sealing equipment or external valves
    Recommended Application: Cement plants
  • Open-Mouth Paper Bags
    Features: Sealed with a sewing machine after filling
Main Applications
Building Materials

Building Materials

  • Cement bag
  • Dry mortar bag
  • Tile adhesive bag
  • Wall putty bag
  • Gypsum plaster bag
  • Coal bag
Chemicals

Chemicals

  • Starch adhesive paper sack
  • Titanium dioxide paper bag
  • Fertilizer packaging bag
Food & Pet Food

Food & Pet Food

  • Flour bag
  • Bulk tea bag
  • Coffee sack
  • Pet food sack
  • Corn packaging bag
  • Legume & bean paper sack
Others

Others

  • Coal powder sack
  • Mineral paper bag
  • Powdered activated carbon paper bag

Yideng focuses on the research, development, and manufacturing of valve bag production machines and production lines. Whether you are seeking valve bags for the construction, chemical, or food packaging industries, we can meet your needs.

Get in touch today to explore how our Valve Bag Production Solutions can help improve your packaging efficiency.
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Industrial Bag Making Equipment