Detailed Explanation Of The Test Method Of Color Fastness To Dry Cleaning

Detailed explanation of the test method of color fastness to dry cleaning

2022-07-31 23:38:10

In life, most people choose to send their precious clothes to dry cleaning, thinking that dry cleaning can not only remove stains, but also maintain the beauty of clothes.

In real life, dry cleaning of clothes will also cause discoloration or staining of light-colored parts.

Learn about the test method for color fastness to dry cleaning today.

What is dry cleaning?

Dry cleaning refers to the washing of clothes with organic chemical solvents, including a dry-in-dry-out washing method that removes oil or stains.

Color fastness to dry cleaning

The common methods of laboratory testing dry cleaning color fastness are:

1. GB/T 5711-2015 "Color fastness test of textiles to perchloroethylene dry cleaning"

2. ISO 105 D01:2010 "Tests for colour fastness of textiles - Part D01: Colour fastness to dry cleaning with perchloroethylene"

Experiment procedure

The above two standard test methods are the same, and the test steps are as follows:

Step 1: Raise the water temperature of the water bath in the mechanical device to the test temperature of 30°C.

Step 2: prepare the combined sample, and the sampling size is 40mm×100mm. Test objects can be garments, fabrics, yarns or loose fibers.

Step 3: Sew two pieces of undyed square cotton twill along three sides to make a cloth bag with an inner size of 100mm×100mm, put a combined sample and 12 stainless steel discs into the bag, and use any convenient form to close the mouth of the bag.

Step 4: Put the cloth bag containing the combined sample and the stainless steel disc into the stainless steel container.

Step 5: In a fume hood, add 200 mL of tetrachloroethylene to a stainless steel container (at a temperature of 30°C).

\ Launder Ometer

Step 6:

Cover the stainless steel container, put it into the Wash Colour Fastness Tester, start the operation, and treat it in a water bath at 30 °C for 30 min.

Washing Colour Fastness Tester

Step 7: Take out the cloth bag from the container, take out the sample, squeeze or centrifuge to remove excess solvent, and hang the sample in the ventilation equipment to dry.

Step 8: Take the original and the original lining fabric as the reference sample, and use the gray sample card or instrument to evaluate the discoloration of the sample and the staining of the lining fabric.

Wash Colour Fastness Tester