1) Hair straighteners can be divided into ceramic heating elements , PTC heating elements and MCH heating elements according to different heating elements. The advantage of the ceramic heating element is that it is environmentally friendly and the heating speed is fast. Generally, the surface temperature of the splint can reach 200 degrees in 30 seconds to 45 seconds. However, since the ceramic heating element is sintered at a high temperature above 1000 degrees, its temperature will quickly exceed 300 degrees after the circuit loses control, which will burn out the plastic material fixing the heating plate, causing the heating plate to fall off, and may come into contact with users and cause skin burns.

PTC is the abbreviation of Positive Temperature Coefficient, which translates to positive temperature coefficient, referred to as PTC thermistor. PTC is also sintered at high temperature, but the maximum temperature of its surface can be controlled during sintering. According to the requirements of the manufacturer, the surface can be sintered to below 280 degrees, or any temperature the manufacturer wants, generally 230 degrees to 230 degrees. 280 degrees. But its disadvantage is that the temperature rises to 200 degrees slowly, generally in about one and a half minutes or two minutes. In addition, in use, it cannot be continuously maintained at a higher temperature like a ceramic heating element . Slightly less effective at straightening hair.

2) According to the different materials of the heating plate , the hair straightener can be divided into: pure ceramic heating plate, aluminum plate sprayed with ceramic glaze on the surface , and glass-ceramic plate . The advantages of ceramic heating plates are environmental protection, good insulation performance, and good safety. The disadvantages are that the processing cycle is long, there are many processing links, and because the edges are very smooth, it will pull the hair a little during the straightening process.

The advantage of spraying ceramic glaze on the aluminum plate is that it is easy to produce. In addition, due to mechanical molding, the edges are very smooth and will not pull hair. Because the surface is sprayed with ceramic glaze, the pulling effect is also very good. The disadvantage is that because it is metal, it is not insulated itself, and the internal heating element must be insulated to avoid potential safety hazards caused by leakage.

Glass-ceramic plates are rarely used, mainly because the smoothness of the surface is not as good as that of ceramic glaze , and it is not easy to form and fix, so the product structure needs to be redesigned.

3) Hair straighteners are structurally divided into V-type and X-type. X-type was more popular in the early days, but V-type is more popular recently. Because the V-shape can not only straighten the hair, the streamlined hair straightener can also be used to curl the hair. More and more hairdressers use the hair straightener to curl the hair.

4) Hair straighteners are divided into wired hair straighteners and wireless rechargeable hair straighteners according to different power sources. Wired hair straighteners are hair straighteners that are powered by connecting to the mains. Charge the rechargeable battery and use the battery as a power source. The advantage of a wired hair straightener is that it can work continuously. The disadvantage is that if the design and production of the hair straightener are not properly controlled, there will be safety hazards. In addition, it is inconvenient to have a power cord during use, and it is inconvenient to carry it out. The advantage of the wireless hair straightener is that it is safe, because it is powered by a branch, and it is easy to carry when traveling. But the disadvantage of the wireless hair straightener is that it can only work for 30 minutes to 1 hour after each charge.

5) Hair straighteners can be divided into wide plate, medium plate, narrow version and mini type according to size

The length of the straightening board of the wide-board hair straightener is generally 90MM, and the width is 42MM. The length of the straightening board of the medium board is generally 90MM, and the width is 24MM. 13-14MM, the length of the mini hair straightener is generally 60MM, and the width is 13-14MM.

6) Hair straighteners can be divided into ordinary type and wet and dry type according to the type of hair pulling. Ordinary hair straighteners have to dry the hair before pulling the hair, and the wet and dry type can pull wet hair. The hair straightening plate of the wet and dry hair straightener should have 8-10 air holes, so that water can turn into steam and emerge from the air holes.