Select the fireproof and flame retardant cloth of the auditorium chair to be tested, cut the required amount, and use the fabric flame retardant function tester (straight method) to stop the test. The temperature of the experiment is between 0 ~ 30 ℃, the temperature of the equal interval is regularly selected, and then the atmosphere with relative humidity of 30% ~ 80% (also the selection of the equal interval is regular). We can see theater chairs in cinemas and auditoriums, so it's no stranger to us. It looks like a simple chair, but the designer needs to think about many elements in the design, such as warmth, film viewing function, personnel dispersion and so on. So what are the design and structural features of the cinema chairs we see today?

The design of theater chair should first ensure a good vision when watching movies. Secondly, it should conform to ergonomics, sit warmly, minimize the pressure on back muscles and spine, and be not easy to get tired. Therefore, most cinemas use high-density qualitative sponge cushions. Thirdly, it is convenient to disperse personnel. Theater chairs mostly use reversible cushions. Theater chairs should also consider numbering and lighting in the dark, so as to find seats.

Structural features of cinema chair seat and backpack: high-density qualitative sponge, shell, inner frame and fabric are selected to form the standing foot: generally divided into aluminum alloy foot and iron foot armrest: generally movable armrest, easy to use seat bag, self weight return, stable return and no noise.

Turn on the power, then put the cloth into the experimental box, open the door, start the experiment, adjust the igniter to a certain height and temperature, watch the timer, and then adjust the ignition time and duration of the flame according to the relevant data and standards. After multiple experiments, watch the changes of the cloth to obtain the flame resistance of the cloth. Remember that multiple experiments must be carried out to obtain the average data, Ability is the correct fire prevention function.