Acid dyes are applied onto the cellulosic textiles through the modification of the textile surfaces with cationic groups. The conventional dyeing of the cellulosic textiles with acid dyes is usually performed over two main steps including, the preparation of the acid dyes and then the applying of these prepared dyes onto modified cellulosic textiles. Herein, a new strategy for simultaneous preparation and dyeing of the cotton fabrics with acid dyes in one step was developed. The innovative strategy was involved in two steps. The first step: β-CDs were grafted onto cotton fabrics through citric acid in the presence of sodium hypophosphite as catalyst and subsequently, the β-CDs grafted cotton fabrics were loaded with naphthols. In the second step; the acid dyes were formed directly onto the modified fabrics by the in-situ coupling of the diazonium salt of the different amines with the naphthols/β-CDs grafted cotton fabrics complexes. The amounts of the grafted β-CDs on the cotton fabrics were evaluated by qualitative and quantitative methods. The cotton fabrics were evaluated by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR). Finally, the coloration and fastness properties of the dyed modified cotton fabrics were investigated. The results displayed that, the dyed modified cotton fabrics were shown the different color shades according to the naphthols and amines with remarkable fastness properties.

通过用阳离子基团修饰纺织品表面，将酸性染料施加到纤维素纺织品上。用酸性染料对纤维素纺织品的常规染色通常在两个主要步骤上进行，包括制备酸性染料，然后将这些制备的染料施加到改性的纤维素纺织品上。在此，开发了一种新的策略，该策略可以一步完成同时用酸性染料制备和染色棉织物的工作。创新策略涉及两个步骤。第一步：在次磷酸钠作为催化剂的存在下，通过柠檬酸将β-CDs接枝到棉织物上，然后，将萘酚负载在β-CDs接枝的棉织物上。在第二步；通过将不同胺的重氮盐与萘酚/β-CD接枝的棉织物复合物原位偶联，可将酸性染料直接形成在改性织物上。通过定性和定量方法评估棉织物上的接枝β-CD数量。通过扫描电子显微镜（SEM）和傅里叶变换红外光谱（FT-IR）评估棉织物。最后，研究了染色的改性棉织物的着色和牢固性。结果表明，染色的棉织物根据萘酚和胺显示出不同的色泽，并具有显着的牢度性能。通过定性和定量方法评估棉织物上的接枝β-CD数量。通过扫描电子显微镜（SEM）和傅里叶变换红外光谱（FT-IR）评估棉织物。最后，研究了染色的改性棉织物的着色和牢固性。结果表明，染色的改性棉织物根据萘酚和胺显示出不同的色泽，并具有显着的牢度性能。通过定性和定量方法评估棉织物上的接枝β-CD数量。通过扫描电子显微镜（SEM）和傅里叶变换红外光谱（FT-IR）评估棉织物。最后，研究了染色的改性棉织物的着色和牢固性。结果表明，染色的棉织物根据萘酚和胺显示出不同的色泽，并具有显着的牢度性能。