Patent ID: 8819990
Filing Date: 2014-09-02
Classification: A01N

Abstract:
1. A method for preserving and/or dyeing plant material, the method consisting of: a first step of removing at least 50% by weight of the natural wax material from the plant material, wherein removing natural wax material from the plant material is achieved by treating the plant material with a non-polar de-waxing solvent consisting of iso-paraffin, petroleum ether, esters of C2-C16 carboxylic acids, or mixtures thereof; a further step of immersing the plant material into a hydrating solution; a further step of subjecting the plant material to a bleaching agent and a pressurized preservation agent, wherein the preservation agent consists essentially of a humectant component, a solvent component and optionally a dye, fungicide or a fragrance material; a further step of rinsing the plant material; and a further step of step of drying and/or storing the plant material.