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How to measure the weight of a non-woven bag
by：Sunshine
2021-04-06
How to measure the weight of non-woven bags is a place where many friends who are new to non-woven bags are prone to misunderstandings. Today I will tell you how to measure the weight of a non-woven bag. So, here will be Watsons covered bag as a measurement case, I hope to help friends in need.
First of all, we have a non-woven bag in hand and want to know the thickness of its fabric. We have to find a professional tool to measure it. And here is not to measure with calipers or rulers. It's not really the thickness. Instead, a piece of non-woven bag is dug regularly with professional tools, and then weighed with a gram weight with an accuracy of 0.01 grams. Then, the weight obtained is the thickness of the cloth used in the bag. That is, how many grams of fabric we often talk about to make non-woven bags.
Of course, there is another aspect that needs attention. If it is a non-woven bag with a film, the weight of three materials should be distinguished. The first is the raw material non-woven, the second is glue, and the third It is a PP film. Generally, the thickness of all laminated non-woven fabric glue and PP film will not change. A bag always keeps the glue 20g and the PP film 15g. The real control of the thickness of the fabric is still controlled by the non-woven fabric.
Speaking of this, it is necessary to mention the thickest and thinnest specifications of the film-coated non-woven fabric. Generally, the thickness of the film-coated non-woven fabric is 90g-120g, which is the most commonly used. If it is less than 90g, then remove the thickness of the glue and PP film, then the thickness of the non-woven fabric is only 55g. If the film is coated on such a thick non-woven fabric, it will make the film-coated non-woven fabric look like plastic Similarly, it will lose the texture that non-woven fabrics should have.
For fabrics larger than 120g, it should be noted that the fabric can be made without affecting the texture of the entire product. However, as everyone knows, non-woven bags are now formed by machines at one time, and they are all heated and laminated by ultrasonic high temperature. Therefore, once the fabric is thicker, the equipment cannot be completed. The integration of the bag interface.
First of all, we have a non-woven bag in hand and want to know the thickness of its fabric. We have to find a professional tool to measure it. And here is not to measure with calipers or rulers. It's not really the thickness. Instead, a piece of non-woven bag is dug regularly with professional tools, and then weighed with a gram weight with an accuracy of 0.01 grams. Then, the weight obtained is the thickness of the cloth used in the bag. That is, how many grams of fabric we often talk about to make non-woven bags.
Of course, there is another aspect that needs attention. If it is a non-woven bag with a film, the weight of three materials should be distinguished. The first is the raw material non-woven, the second is glue, and the third It is a PP film. Generally, the thickness of all laminated non-woven fabric glue and PP film will not change. A bag always keeps the glue 20g and the PP film 15g. The real control of the thickness of the fabric is still controlled by the non-woven fabric.
Speaking of this, it is necessary to mention the thickest and thinnest specifications of the film-coated non-woven fabric. Generally, the thickness of the film-coated non-woven fabric is 90g-120g, which is the most commonly used. If it is less than 90g, then remove the thickness of the glue and PP film, then the thickness of the non-woven fabric is only 55g. If the film is coated on such a thick non-woven fabric, it will make the film-coated non-woven fabric look like plastic Similarly, it will lose the texture that non-woven fabrics should have.
For fabrics larger than 120g, it should be noted that the fabric can be made without affecting the texture of the entire product. However, as everyone knows, non-woven bags are now formed by machines at one time, and they are all heated and laminated by ultrasonic high temperature. Therefore, once the fabric is thicker, the equipment cannot be completed. The integration of the bag interface.
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