An important aspect of chemical industry involves suitable packaging of the chemicals to ensure their ease of usage and maintenance of chemical integrity. Introduction of reusable packaging systems and septum cap packaging are few innovative initiatives in the chemical packaging industry. The reusable safety packaging has been done for polyethylene-coated glass bottles for storage of reagents and acids.
There is an unending demand for innovation in not only safe packaging of chemicals but also due care is needed to minimize waste generated in packaging industry. The molded fiber components such as cellulose and recycled paper have come to replace EPS foam for sustainable packaging to reduce packaging waste. The stainless steel containers without any secondary packaging material for large scale applications and reusable totes for bulk delivery are also reducing the usage of packaging materials and carbon footprint in the industry
A large number of patents in the sustainable chemical packaging protect innovations pertaining to packaging of chemicals and in performance materials for liquid crystals. Specifically in case of chemicals, the moisture sensitive reagents including dry solvents have always proved to be cumbersome for the chemists. The maintenance and working with air and moisture-sensitive chemicals, high purity solvents with minimal water content like organo-metallic reagents that are spontaneously pyrophoric is challenging. The demand for high-purity solvents with the lowest possible water content is very high in many moisture-sensitive lab applications. The introduction of septum cap packaging is an incredibly innovative step towards resolving the issues faced in handling moisture sensitive chemicals.
The septum cap packaging protects the solvent from hydrolysis and oxidation, thereby ensuring dryness of the solvent produced by distillation methods. Basically the septum cap packaging provides multi-layer protection to the solvent. It comprises of a multi-layer septa consisting of an inner PTFE layer and outer butyl rubber layer. The inner PTFE layer is in contact with the solvent or reagent is inert. Thus, the solvent does not get contaminated by the septum material. Besides ensuring the moisture and air-free environment for the chemical solvent, septum-cap packaging has an improved mechanical performance, a feature attributed to its increased thickness. Septum cap packaging allows any needle-punctures without compromising on any chemical property of the solvent contained in the bottle. The outer butylated rubber layer re-seals around the needle punctures.
The advancement of septum packaging technology in last few years has made a hot topic of interest. Chemical and packaging industry are rushing towards innovation focusing on features like quadrant-style cap, double-tamper evidence closure and a cushioned line in the external cap. The need for living innovation in septum packaging is in the self-sealing property of the material used due to repeated punctures to the very limited septum surface area.
In an increasingly global market, the ease of usage and maintenance of chemical integrity pose a big challenge for the growth of chemical packaging market. Innovation in chemical packaging domain is necessary to realize the commercial gains worth billions.