THP and chrome are synergistic tanning agents. The combination of THP with small amounts of chrome and optionally non-ionic and/or cationic surfactants gives increased area yield and shrink temperature compared with THP, and reduced environmental impact compared with chrome. It is possible to combine degreasing, pre-tan and main tan in a single step.

THP y el cromo son agentes que broncean sinérgicos. La combinación de THP con cantidades pequeñas de cromo y opcionalmente de surfactants no iónicos y/o catiónicos da la producción creciente del área y la temperatura del encogimiento comparadas con THP, y las consecuencias para el medio ambiente reducidas comparadas con cromo. Es posible combinar desengrasar, pre-broncea y tan principal en un solo paso.

 
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