A Review of the Properties, Application and Methods of Dyeing of Poly Lactic Acid

The raising of global warming and environmental pollution has increased the use of biodegradable polymers. On of the most important polymers in this kind are poly (lactic acid) (PLA), which has can be produced by the melting process which is the most efficient method for the fiber production. Poly (lactic acid) is a biodegradable alternative to poly (ethylene terephethalate) (PET) , in many technical textiles and clothing products. Although PLA is similar to PET in various aspects, PLA has different dyeing conditions from it. The results of researches show that PLA absorption isotherm with natural and synthetic dyes follow from nernst and langmuir isotherms. This paper reviews the recent developments in the dyeing of PLA fibers and textiles with disperse, vat, cationic and natural dyes.