The material and production process of ear muffs
Ear muffs are personal protective equipment used to protect ears from harmful elements such as noise and vibration. They usually consist of two cups and a headband, the cups are lined with sound-deadening material to effectively reduce the impact of outside noise. The material and manufacturing process of the ear muffs directly affect the sound insulation, comfort and durability of the earmuffs. The following are common materials and manufacturing processes for earmuffs. Material Foamed plastic material: Foamed plastic material is a common earmuff material and is often used for the sound-isolating layer of the inner earmuff lining. This kind of material is relatively light, soft and elastic, can effectively insulate sound, and also has good comfort. Plastic and metal materials: Plastic and metal materials are commonly used for the cup portion of the ear muffs and the headband portion. This kind of material is relatively hard and durable, which can protect the ears well, and also has a