Maybe everyone thinks that cotton bag s and canvas bag s are the same material? In actual fact, although their raw materi als are all made of pure cotton, they are easily degraded in the natural environment and will not pollute the environment. However, they also differ in that they are generally thicker than cotton bags. Here are the characteristics of these two kinds of bags: First, the cotton bag: The material of the cotton bag is a kind of woven fabric made of cotton yarn. The different varieties are derived due to the different specifications of the tissue and the different processing methods. The concept of cotton is very wide. It can be said that all raw materials that are spun from cotton yarn can be called cotton cloth. However, when it comes to understanding everyday life, it is generally believed that cotton is made from a single, relatively fine cotton yarn. It has the characteristics of softness, moisture absorption, breathability, and warmth. Its drawbacks a...