The physical performance requirements for the seat cushion of China Passenger Boat Seats IMO HSC Certificate
Release time:
2022/05/27
In addition to a certain stiffness, the seat cover of the Passenger Boat Seats IMO HSC Certificate also requires the seat fabric to have moisture absorption and heat regulation.
The seat cushion of China Passenger Boat Seats IMO HSC Certificate usually consist of a foam core, a flame retardant fire barrier and a flame retardant outer jacket. If the foam composition of the seat cushion is flame retardant polyurethane, the main factors affecting the comfort of the seat cushion for the Passenger Boat Seats IMO HSC Certificate are density, rebound rate and sag hardness. On the premise of satisfying the relevant provisions, the reasonable distribution of the flame retardant polyurethane on the seat cushion should also be considered.
In order to meet the requirements of comfort, generally flame retardant polyethylene is distributed around the seat cushion of the China Passenger Boat Seats IMO HSC Certificate. Flame retardant polyethylene should not be placed on the seat cushion at the ischial tuberosity. The comfort of the seat cushion flame retardant fire barrier in the Passenger Boat Seats IMO HSC Certificate mainly considers its air permeability and the fit with the foam, and the main influencing factors are the water vapor diffusion coefficient, thermal properties and hygroscopicity.
In addition to a certain stiffness, the seat cover of the Passenger Boat Seats IMO HSC Certificate also requires the seat fabric to have moisture absorption and heat regulation. Wool fabric not only has good hygroscopicity and heat insulation, but also has rapid moisture diffusion. From a safety point of view, ordinary fabrics have greater friction than leather, which is conducive to strengthening the support of the China Passenger Boat Seats IMO HSC Certificate on the human body. It is not easy to slip and is safer than leather.
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