Abstract
Commercial nitrogen-phosphorus flame retardants (KZR-2, SC-968, FR-102), which are frequently used in textile industry, were imposed on the fatliquoring processes of leather. When 0%, 0.5%, 1.0%, 1.5%, 2.0%, 3%, 6%, 9%, 12﹪and 15﹪ amount of flame retardants was respectively added, their influence on the absorption rate of different fatliquoring agents (synthetic oil, fish oil, vegetable oil and lecithin) and on the flame retardant property were investigated. The absorption rate of fat-liquoring agents was measured by oven and dichloromethane methods. The fire resistance was studied by means of oxygen index, vertical combustion and smoke density. The results show that flame retardants (KZR-2, SC-968 and FR-102) can enhance the absorption rate of fat-liquoring agents in leather by more than 40%. Their ability for this enhancement can be listed as KZR-2>SC-968>FR-102. Among them, KZR-2 owns the best performance for the enhancing of absorption rate ( its influence on the oil is listed as synthetic oil>fish oil>lecithin>vegetable oil).
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