How to measure the weight of non-woven bags is a misconception that many friends may have when they first come into contact with non-woven bags. Today I will tell you how to measure the weight of non-woven bags. So, here will be a brand coated tote bag as a measurement case, hoping to help you have friends who need it.

Firstly, we have a non-woven fabric bag in hand, and we need to find professional tools to measure the thickness of the fabric. And this is not measured with a caliper or ruler. This is not the true thickness. But a non-woven bag is regularly dug out with professional tools and accurately weighed to the nearest 0.01 grams, which is the weight of the thickness of the fabric used. This is how many grams of fabric we use to make non-woven bags.

Of course, another aspect that needs to be noted is that if it is a coated non-woven bag, it is necessary to distinguish the grams of three materials: first, the raw material non-woven fabric, second, adhesive, and third, PP. Generally speaking, the thickness of all laminated non-woven fabrics and PP films will not change. A bag always maintains the appearance of 20g of glue and 15g of PP film, while the true control of fabric thickness still relies on non-woven fabrics.

At this point, it is necessary to mention the thickest and thinnest coated non-woven fabrics. Generally coated non-woven fabrics are commonly used for thicknesses ranging from 90g to 120g. If it is less than 90g, remove the thickness of the adhesive and PP film, and the thickness of the non-woven fabric is only 55g. If the film is on this thick non-woven fabric, it will make the coated non-woven fabric look like plastic and lose its texture.

For fabrics larger than 120g, it should be noted that the fabric can be manufactured without affecting the overall product texture. However, as is well known, nowadays non-woven fabric bags are made by machine forming and are all hot pressed through ultrasonic heating. Therefore, once the fabric is thickened, the equipment cannot complete the interface of the fusion bag.