How to distinguish whether the fabric is pure cotton? You can't touch it with your hands. From a professional point of view, the best way is to use "samadhi real fire" to refine: take out a small yarn from the seam edge for fire detection, the real natural cotton fiber will not shrink when burning, but will produce natural yellow flame like paper.
How to distinguish whether the fabric is pure cotton
How can you tell if the fabric is pure cotton?
Pure cotton fabric feels natural and soft, full and thick, slightly astringent and muscular, with small pulling range and slow recovery after pulling; while chemical fiber fabric feels soft and loose, with sliding sense, with large stretching range, it will bounce back to its original shape once it is released. In addition, due to the tenacity and weak elasticity of cotton yarn, the recovery time of pure cotton will be a little longer after wrinkling. When judging pure cotton, you can fold the fabric in half, and then use your fingernail to scrape along the edge. After unfolding, the more obvious the scratches are, proving that the higher the cotton content is, while the pure chemical fiber fabric will not leave scratches.
The second way:
In addition to the mercerized cotton treated with caustic soda, the pure cotton fabric has no obvious luster, natural and soft color. When it is naturally laid down, it has a natural sense of draping and little 'reflection'. When purchasing, you can flatten the bed products and add a certain amount of tension, and then make the fabric and the body downward at a 45 angle to the light source. If there is a flash of light, then it must be high content of chemical fiber. In addition, due to the addition of fluorescent whitening agent, the white of chemical fiber will be whiter than that of pure cotton, and even have a dazzling feeling.
The third way:
From a professional point of view, the best way is to use "samadhi real fire" to refine: take out a small yarn from the seam edge for fire detection, the real natural cotton fiber will not shrink when burning, but will produce a natural yellow flame like paper, and at the same time produce the smell of burning paper, after burning out, it will produce ash white ashes that can be rubbed; while the chemical fiber will melt and drop when burning Fall, there are black smoke and burning rubber smell, burning will form a black hard point.