What do You Know about Heat Seal Poly Bags?

Heat Seal Poly Bags

Heat seal poly bags come with an airtight seal with a neat, finished edge. It’s a cost effective way to package products because this bag type requires no extra material to close the bag opening, just some equipment and the right heat sealable poly bags. This article provides a closer look at different types of plastic bags which should do with heat sealing, and how to make these bags.

What are Heat Seal Poly Bags?

Heat seal poly bags are plastic bags that can be closed using a heat applicator, which fuses the material together to create a complete seal. Original materials are separate pieces. Then, they can be heat sealed together to establish the edges, or as a layflat tube.  So this is an important element to cut and seal plastic film, creating various products of different heights.

poly shopping bag

Many advantages in This Bag Type

In many manufacturing applications, heat seal poly bags are a great solution for cost effective and time saving packaging. Some advantages of heat sealing include:


  • Effective seal on bags of virtually any size
  • Watertight and airtight seal keeps out debris and moisture
  • Durable seal protects products during transit and handling
  • Clean, finished edge also displays contents in an attractive way


Types of Heat Seal Poly Bags

This sealing method is very popular in the poly bag production industry, including polythene, polyethylene, and polypropylene bags.

Low-density polyethylene, in particular, is ideal for making heat seal poly bags. This lightweight material melts at 320 degrees Fahrenheit, which means it can be heated, fused, and cooled quickly after the heating element is removed.

Take a look at the Star seal bottom bags which are the most popular bag type of garbage bags using the heat seal method.

How to Make Heat Seal Poly Bags

To make plastic bags with strong seal, what you need to do first is to start with the right materials and tools.  You can do this by ordering custom poly bags from a reputable supplier. This can help you to make sure they’re compatible with the heat sealing method you plan to use.

Heat guns can create an airtight seal on shrink wrap film for produce, parts, and other items.

Impulse heat sealers apply heat and pressure to the poly bag for just a few seconds using an element wire.

Then, feed your poly bags into your heat sealing machine. And do not forget to set the timer appropriately for the density of the material you’re using.

The heat sealer melts the material until it co-mingles together, then sets it into a single, neat seam of plastic. As it cools, the poly material will contract, tightening the seal.

Some heat sealing machines come with attached cutters, which trim the material close to the seal for an attractive finish.

If your facility must accommodate a high volume of heat sealing, consider investing in an industrial heat sealer, which can handle a variety of poly material types and different bag sizes.


Order Custom Poly Bags

Are you looking for heat sealable poly bags? In Hanpak, we are expert in this bag type. Do not hesitate to talk to our team about for needs, then we can support you better. We manufacture custom poly bags with the minimum order of 1 ton and with lead times of 3-4 weeks. Give our team a call to learn more about our custom options. We are looking forward to your contact. Have a nice day!

Leave a Reply

Your email address will not be published. Required fields are marked *

error: Content is protected !!