Foil Lined Multiwall Paper Bags
Barrier Protection Built Into the Bag
Some products need more than strength and durability from their packaging. They need protection from moisture, oxygen, light, and temperature swings that can affect quality, shelf life, or performance. That’s where a foil liner comes in.
A foil lined multiwall paper bag is built with a thin layer of aluminum foil laminated inside the bag, in addition to the standard kraft paper plies. The foil creates a barrier layer that standard paper alone can’t provide, while the outer kraft construction still gives you the strength, printability, and handling characteristics multiwall bags are known for. Bag Supply Company offers the foil liner as an option on our pinch bottom open mouth bags, for customers who need added barrier protection along with the flat-bottom bag’s stacking and shelf presentation advantages.
Why Choose a Foil Liner
An excellent radiant barrier. The foil layer reflects radiant heat rather than absorbing and transferring it, which helps protect temperature-sensitive products from the effects of heat exposure during storage and transport.
A strong moisture barrier. Foil blocks the transmission of moisture vapor far more effectively than paper alone, helping protect products that are sensitive to humidity, caking, or moisture damage.
A dependable food barrier. For food grade applications, the foil layer helps guard against oxygen, moisture, and outside contamination, supporting product freshness and shelf life.
A light barrier. The foil layer blocks light transmission, which matters for products that degrade or lose quality when exposed to light over time.
Recyclable material. Aluminum foil is a recyclable material. Once separated from the paper and polyethylene layers it’s laminated with, the foil can be recovered and recycled rather than sent to a landfill.
Common Applications for Foil Lined Bags
Foil liners are most valuable when a product’s quality depends on staying protected from the outside environment, including:
- Chemical products that need protection from moisture and outside contamination during storage and transport
- Food grade dry goods where freshness, shelf life, and protection from light and oxygen matter
- Temperature-sensitive products that benefit from the radiant barrier properties of a foil layer
- Moisture-sensitive materials prone to caking, clumping, or degradation when exposed to humidity
If your product needs more than a standard kraft bag can offer, a foil liner is worth a conversation with our team.
Frequently Asked Questions
What is a foil lined multiwall paper bag? It’s a multiwall kraft paper bag built with an added layer of aluminum foil laminated inside, giving the bag a barrier against moisture, oxygen, light, and radiant heat, on top of the strength and printability of standard multiwall construction.
Which bag styles can be foil lined? Bag Supply Company offers the foil liner as an option on our pinch bottom open mouth bags.
Is a foil lined bag recyclable? The aluminum foil itself is recyclable. Because it’s laminated together with paper and polyethylene, the layers need to be separated for each material to be recycled properly.
What kinds of products benefit most from a foil liner? Products that are sensitive to moisture, light, oxygen, or temperature tend to benefit the most, which is why foil liners are common in chemical and food grade applications.
Let's Talk About Your Foil Lined Bag Needs
Call Bag Supply Company Today so we can go to work for you.
If your product needs added protection beyond what a standard kraft bag provides, our team can help you figure out the right bag style and liner configuration for the job.
Call Bag Supply Company today so we can go to work for you.