Auditorium chair seat soft package material for high transparent type nano flocking fabrics, with flame retardant, the characteristics of the fouling resistance, waterproof, prevent oil, high wear resistance, sound absorption effect is good, easy to clean. Fully meet the national requirements of environmental protection, flame retardant B1 level standards reach national standard, formaldehyde content and extraction of heavy metal content is lower than the national standard, volatile matter content accord with the requirement of national standard. Airflow resistance: 600 ~ 800 pa s/m bursting strength ≧ 1400 n abrasion resistance: flat grinding ≧ 25000 times