How to determine the thickness of the plastic bag?

Thickness is a problem that can not be wrapped around the production process of plastic bags. However, the overall thickness of the plastic bag is small, it is difficult to distinguish the naked eye, and food manufacturers are often difficult to say what thickness of packaging they need. Therefore, today we analyze the thickness of common plastic bags for you.
​​​First of all, we generally use "silk" to indicate the thickness of plastic bags, 1 mm (mm) =100 silk, according to the reason that everyone should use mm to express, but because in daily production and life, people are used to using "silk" to express, so the price of plastic bags manufacturers is also quoted in accordance with "silk". Under normal circumstances, different bag thickness is different, 10 silk refers to the bag thickness of 0.1 mm, 8 silk refers to the bag thickness of 0.08 mm. Knowing this point, we can talk about the thickness of plastic bags from the data.
​How to choose the thickness of the bag?
​First, choose according to the weight of the package
The thickness of the packaging bag should be selected according to the weight of the packaging, and the thickness of the packaging bag required for the larger the weight of the packaging bag should also be increased accordingly. Generally speaking, products below 100g can use bags with a thickness of 4 wires; It is recommended to use 5-6 silk packaging bags for 100-500g products; 500-1000g products use 7-8 wire packaging bags; More than 1000g of products need to use more than 10 silk bags. This can ensure that the packaging bag will not break or be damaged due to excessive weight during transportation and storage. However, this standard is not absolute and needs to be determined according to the actual situation.
2. Choose according to the size of the package
The thickness of the packaging bag should also be selected according to the size of the package. In the case of large packaging size and strong three-dimensional sense, it is recommended to use a relatively thick packaging bag, which can ensure that the packaging bag can withstand greater pressure and friction, and avoid cracking or wear during use.
Three, according to the special nature of the item to choose
Some special items, such as fragile or sharp items, for such products, the packaging bag needs to have sufficient cushioning and puncture resistance, so a thicker material layer may be required. Powder or liquid These products require higher sealing and leak-proof packaging and may require thicker inner layers or additional leak-proof layers. Products such as food and drugs that are sensitive to environmental factors (such as oxygen, moisture, light) need to choose composite materials with good barrier properties, and may require a thicker barrier layer.
​Points to note:
First of all, the thicker the plastic bag, the better. Many customers feel that the thicker the stronger the packaging, so they want to choose the thickest packaging bag, in fact, this is a big misunderstanding. Suitable for the thickness of the product is the best, the thickness of the packaging bag has the corresponding performance, emphasis, different foods also have the required strength, too thick packaging for some products, is a waste.
Secondly, the thickness of the composite plastic bag depends on the final thickness of the bag, because the composite plastic bag has several layers of film to compound, and some plastic bags also have cow quality or non-woven materials, so the thickness of the bag can not only look at the thickness of one of the materials.
Finally, if you are not sure about the thickness of the packaging bag required for your own products, it is recommended to consult professional packaging bag manufacturers, they have rich experience and professional judgment about how much thickness is required for various products. As a professional packaging bag manufacturer, you only need to provide product types, specifications, requirements, etc., you can estimate the thickness range. Welcome to consult ~