Henry Chen explains that in order to preserve the flatness and elasticity of the material, each "private room" must be maintained at a humidity of 65 % and a temperature of 25 ° C. The rooms are separated to prevent contamination from one machine to the next (for example having a colored yarn machine contaminate a gray fabric machine).
陳恩全解釋，為了保持布面的平整和彈性，「套房」需控制在濕度 65 度、溫度攝氏 25 度，隔間則是為了避免不同機台間的互相污染，例如預防織「色紗」的機台污染了無色的胚布機台。