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Effect of Pretreatment and Dyeing Processes on the Physical Properties of Poly(Lactic Acid)/Cotton Blended Fabric
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The properties of PLA spun yarn was investigated comparing with cotton and PET spun yarns of the same linear density. The PLA/cotton blended fabric (50/50) was prepared and the fabric properties were analyzed in comparison with the 100% PLA and cotton fabrics. It was found that in the PLA/cotton blended fabric, cotton was the component that imparted moisture absorption, strength and drapeability to the fabric, while, PLA provided dimensional stability to the blend. Investigation of the effect of the pretreatment and dyeing processes found that the bleaching process for cotton with H2O2 under alkaline conditions caused a significant strength loss to the PLA fabric. The dyeing processes exhibited a slightly negative effect on the fabric strength. Meanwhile, the strength of cotton fabric was much less affected by the pretreatment and dyeing processes used. The fabric hand properties, viz. stiffness and drapeability of PLA and cotton fabrics were also influenced by the pretreatment and dyeing processes.
Trans Tech Publications, Ltd.
Title: Effect of Pretreatment and Dyeing Processes on the Physical Properties of Poly(Lactic Acid)/Cotton Blended Fabric
Description:
The properties of PLA spun yarn was investigated comparing with cotton and PET spun yarns of the same linear density.
The PLA/cotton blended fabric (50/50) was prepared and the fabric properties were analyzed in comparison with the 100% PLA and cotton fabrics.
It was found that in the PLA/cotton blended fabric, cotton was the component that imparted moisture absorption, strength and drapeability to the fabric, while, PLA provided dimensional stability to the blend.
Investigation of the effect of the pretreatment and dyeing processes found that the bleaching process for cotton with H2O2 under alkaline conditions caused a significant strength loss to the PLA fabric.
The dyeing processes exhibited a slightly negative effect on the fabric strength.
Meanwhile, the strength of cotton fabric was much less affected by the pretreatment and dyeing processes used.
The fabric hand properties, viz.
stiffness and drapeability of PLA and cotton fabrics were also influenced by the pretreatment and dyeing processes.
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