Disperse Dyes: Dyeing Properties and Fastness of Azo Dyes

1977 ◽  
Vol 47 (2) ◽  
pp. 126-128 ◽  
Author(s):  
S. V. Sunthankar ◽  
V. Thanumoorthy
Keyword(s):  
Azo Dyes ◽  
Disperse Dyes ◽  
Dyeing Properties ◽  
Substitutional Effect ◽  
Coupling Components

The dyeing properties and fastness of several disperse azo dyes, prepared from the o- and m-substituted p-nitroani-lines as diazo components and N-ethyl-N-cyanocthylanilinc and - o-anisidine as coupling components, have been studied in order to get an idea of the substitutional effect on dyeing properties.

The Effect of Selected Pretreatments on the Dyeing and Color Properties and pH-Sensitivity of Wools Dyed with Metallized Azo Dyes

1977 ◽  
Vol 47 (1) ◽  
pp. 18-24
Author(s):  
Howard L. Needles
Keyword(s):  
Azo Dyes ◽  
Ph Sensitivity ◽  
Sodium Dichromate ◽  
Color Properties ◽  
Dyeing Properties ◽  
Phosphonium Chloride ◽  
Cuprous Sulfate ◽  
Color Differences ◽  
Azo Group

The effect of tetrakis(hydroxymethyl)phosphonium chloride (THPC) and peroxydisulfate (PS) anion pretreatments on the dyeing properties of wool with metallized azo dyes was studied and characterized. Chrome-metallized azo dyes containing pyrazolone or acetoacetanilide moieties dyed THPC and PS-treated wools to different shades than those found for untreated wool, whereas treated and untreated wools dyed with chrome-metallized azo dyes containing aromatic benzenoid rings on both sides of the azo group gave much smaller color differences. The particular mordant used did not significantly affect the nature of color differences observed when treated and untreated wools dyed with mordant dyes containing a pyrazolone moiety were metallized; however, the pH-sensitivity of the mordant-dyed wools was reduced by metallization, with sodium dichromate and cuprous sulfate metallization providing the greatest degree of stabilization.

2-Amino-3-hydroxy-4-methylthiazoliumchlorid. Ein neues Reagens zur Bestimmunung von Nitrit.

1976 ◽  
Vol 31 (7) ◽  
pp. 981-982 ◽  
Author(s):  
G. Entenmann ◽  
H. Herter ◽  
H. Lay
Keyword(s):  
Aqueous Solution ◽  
Azo Dyes ◽  
Aromatic Compounds ◽  
Colour Reaction ◽  
Photometric Detection ◽  
Coupling Components

After diazotation 2-amino-3-hydroxythiazolium chlorides react with activated aromatic compounds to build azo dyes. In absence of coupling components 2-amino-3-hydroxy-4-methylthiazolium chloride gives a colour reaction with nitrite ions, which is suitable for photometric detection of nitrite in aqueous solution.

Substituent-Dyeing Properties Relationship of Disperse Dyes on Polyester in Low Pressure Waterless Dyeing System

2021 ◽  
Author(s):  
Shunjie Yu ◽  
Hongjuan Zhang ◽  
Liujun Pei ◽  
Shuaitong Liang ◽  
Aixue Dong ◽  
...  
Keyword(s):  
Low Pressure ◽  
Disperse Dyes ◽  
Dyeing Properties ◽  
Relationship Of

scholarly journals Dyeing Properties of Capsules Containing Disperse Dyes into Polyester Fabrics.

2002 ◽  
Vol 58 (2) ◽  
pp. 68-72 ◽  
Author(s):  
Yasunari Sawanoi ◽  
Teruo Hori
Keyword(s):  
Disperse Dyes ◽  
Polyester Fabrics ◽  
Dyeing Properties
Sign in / Sign up

Export Citation Format

Share Document