To achieve a durable aroma finish on textiles has been a long time dream for textile chemists. As fragrances are volatile, only microencapsulated aroma can stay on textiles for long periods, since capsules greatly reduce the aroma evaporation rate. An aroma finished textile has to be washable. Therefore, aroma capsules finished on textiles should not only last for long time statically but also withstand harsh washing conditions. Due to low affinity between encapsulated aroma and fabric, a fixing agent must be applied with the capsules; the fabric has to undergo a curing treatment to make the agent fix these capsules. However, the curing process is usually a high-temperature thermal procedure that causes aroma loss from capsules by quick evaporation. Thus, fragrant durability on fabrics can vary significantly with different fixing agents and curing processes. Three fixing agents, three kinds of thermal curing equipment, and various curing conditions were investigated. By analysing properties of the fixing agents, heat transfer characteristics of the curing apparatus, and delivered energies in the curing conditions, a washing durable aroma capsule finishing process for cotton fabric was developed.

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A method of biologically decolorizing wastewater from fiber reactive dyeing of cotton by sequential anoxic/aerobic treatment steps using a single biomass has been developed and evaluated for chemical oxygen demand and color removal. A viable biomass that effectively removes both color and chemical oxygen demand in a sequential anoxic/aerobic treatment process has been developed. This method may be retrofitted to existing aerobic wastewater treatment systems that are typically used to treat dyeing wastewater.

One-step dyeing and durable press (DP) finishing offers potential advantages such as energy savings, reduced production time, and quick response to the market. In the present research, six reactive dyes were used in combination with DMDHEU, a DP finishing agent, in one-step and conventional two-step dyeing and finishing processes. Colorfastness properties and DP ratings of fabrics treated by the one-step dyeing and finishing process were comparable to those fabrics dyed and finished in separate steps.