Properties of thickener NDY for printing with reactive dyes

For better understanding the properties of NDY as reactive dyes printing thickener,the basic properties and the printing effect of NDY complex thickener were studied,and then a comparison was made with sodium alginate(SA).The results showed that NDY complex thickener has high thickening efficiency,and water conservative property.Its PVI(rheological behavior) is 0.28.Therefore,it is more suitable for fine pattern printing of cellulosic fabrics than sodium alginate with no reaction with reactive dyes.It has good color yield,clear pattern,good color fastness,and has better permeability than sodium alginate.The actual printing effect of NDY thickener is similar to that of SA thickener.In addition,NDY thickener was removed easily.NDY can replace SA as reactive dyes printing thickener.