GB/T 2396-2013Disperse dyes - Determination of degree of fixation - Thermosol dyeing process (English PDF)

1 Scope

This standard specifies the method for determination of disperse dyes on polyester fiber melt pad dyeing fixation rate.

This standard applies to the determination of disperse dyes on polyester fiber melt pad dyeing fixation rate.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

General conditions GB/T 2374-2007 Determination of dyes provisions

Determination of GB/T 2394-2006 disperse shade and intensity

Principle 3

With chlorobenzene - phenol mixed solution of dissolved Polyester fiber before and after fixation, and then extracted with acetone in which the dye. With a spectrophotometer

Measured absorbance values before and after the fixing solution was extracted samples by absorbance ratio is calculated before and after the unit mass of solid color to calculate disperse

Fixation.

4 Reagents and materials

The reagents and materials shall comply with GB/T 2374-2007 in Chapter 3.

a) acetone.

b) chlorobenzene - phenol mixture. 11 (mass ratio).

5 Instruments

The instrument shall comply with GB/T 2374-2007 in Chapter 4.

a) laboratory two-roll mangle;

b) laboratory melt machine;

c) analytical balance;

d) spectrophotometer.

Step 6 Analysis