1. Price identification method

2. Luster and feel identification method

3. By folding in half

4. Combustion identification method

5. Tensile force identification method

6. Friction based acoustic recognition method

7.84 Disinfectant identification method

In experiments, chemical methods are usually used to identify: 1 gram of silk scarf fiber is placed in 1 mole of sodium hypochlorite solution. If it is completely dissolved, it can be determined that it is silk. The main component of 84 disinfectant is sodium hypochlorite, which will undergo a chemical reaction of dissolution when encountering protein fibers. In daily life, you can try 84 disinfectant to distinguish between real and fake silk. When using this method, it should be paid to controlling the specific gravity, if the amount of disinfectant is not enough, the concentration is not reached, or some fabrics have a tight structure, they may not be completely dissolved.