Did you know many paper products are coated in a thin layer of wax? Keep reading to learn all about wax coated packaging products.
How Is Wax Applied To Paper Products?
There are a few different ways wax is applied to paper products. The paper product can be immersed in a basin of melted wax. This is called wet waxing or a wax bath. Another method is roll-on or dry waxing where the wax is rolled on the paper product using rollers. The wax can also be applied using a laminating method, which is used to bond two substrates together (foil to paper, paper to paper, etc.).
How Much Wax Is Used To Coat Paper Products?
The amount of wax added to the paper depends on what the paper will be used for. For example, butcher paper has a thicker wax coating on it compared to a candy wrapper. For a ream of paper, which is approximately 3,000 square feet, there can be up to 30 pounds of wax on it.
What Type Of Wax Is Used To Coat?
Paper products are coated in low-mid melt point waxes. Waxed paper used for cooking or baking typically uses a mid-melt wax. Deli papers, interleaf sheets and patty papers usually use a low melt, low coat weight paraffin wax for grease and moisture resistance. Sandwich and butcher paper wraps are coated in a modified wax blend to give it heat, moisture and grease resistance with slip properties. Additives like EVA polymers, polyethylenes and other surface modification materials are also used.
Why Is Wax Added To Paper Products?
Wax is added to paper products to make the paper more durable and moisture resistant. The thin coating of wax keeps the paper product from disintegrating when it comes into contact with moisture, like grease or water.
Are you interested in learning more about our paper coating waxes? Contact us to learn more or check out these blogs: