Hello, I work for a non-profit and am preparing a shipment of Lyve canvas prints (with varnish on one or both sides) and 100% cotton rag prints for shipment to India. We have received differing opinions on whether or not we should be using interleaving between the canvas and the paper and what type of interleaving material we should be using. Any help/advice is much appreciated. The prints are mostly flat except for the larger ones (up to 66x40") which are rolled and boxed. Our concern is how to protect them from heat and humidity and which type of interleaving to use so that the canvas and paper do not stick to the interleaving materials. The prints are in boxes and will be placed in wooden crates for shipment. Once in India they may sit in storage for an indeterminate period of time. Thanks