Reasons for the bad feel of using hairdressing scissors.

The principle of hairdressing scissors to cut hair: The so-called scissors use the “leverage principle” of mechanics, using the upper and lower blades to “cut” the hair.

The main factors for the deterioration of the hand feel are: abnormal blade: visually check whether the blade body is deformed or damaged (using a magnifying glass), and avoid collisions during use. If necessary, ask the manufacturer for help. Abnormal screw: Regularly check the opening and closing conditions (first open the scissors 90 degrees, and then close the blade element, blade center and blade. If the opening and closing is easy and smooth, it is an ideal situation; if it is too loose or too tight, please adjust the screw To the right position.) The way to check the sharpness of the blade can be: first prepare a single-layer tissue, spray it with water (note that the spray is light and not too wet), hold it flat in your hand, and cut it with scissors. If it can be cut easily and smoothly when opening and closing, there will be no pull-up phenomenon (the cut surface is smooth and not rough), indicating that the scissors are still very sharp; otherwise, it is time to grind. Press knife (scissors): The so-called press knife is the circular opening and closing scissors that press the blade with the thumb. Why do you need to press the knife? It is usually because the scissors have been used for a long time, and their opening and closing and sharpness have begun to change without being noticed, so continue to use; and also because the scissors that are not suitable for you are used at the beginning, resulting in the thumb having to use force. Cut your hair smoothly. After working for such a long time, you will develop the invisible habit of pressing the knife. Note: Pressing the knife will not only cause a burden on the palm and wrist, but also cause the knife edge to shift, resulting in accelerated wear of the knife edge and causing great damage to the scissors. Improper use of scissors will not only accelerate the wear of the scissors, but also cause a great burden on the palms and wrists, resulting in occupational injuries (tendinitis), which is worthy of attention by designers.