In life, most people choose to send valuable clothes to dry cleaning. They think that dry cleaning can not only wash away stains, but also keep the clothes beautiful.

However, in actual life, the dry cleaning of the clothes may also cause discoloration or staining of light parts.

Today, we will work together to understand the test methods for fastness to dry cleaning and the product standards for common clothing to assess the fastness to dry cleaning.

What is dry cleaning?

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

Color fastness to dry cleaning

Common methods for testing the color fastness of dry cleaning in the laboratory are:

GB/T 5711-2015 "Textile fastness test for color fastness to dry cleaning of tetrachloroethylene"

ISO 105 D01:2010 "Textile—Tests for colour fastness-Part D01:Colour fastness to drycleaning using perchloroethylene solvent"

Experiment procedure

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

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

Step 2: preparing a combined sample, the sampling size is 40 mm × 100 mm. The test object can be a garment, a fabric, a yarn or a loose fiber.

Step 3: Stitch two undyed square cotton twills along three sides to make a bag with an inner dimension of 100mm×100mm, and put a combined sample and 12 stainless steel wafers into the bag for any convenience. The form of the closed pocket.

Step 4: Place the bag containing the combined sample and the stainless steel disc in a stainless steel container.

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

Step 6: Cover the stainless steel container, put it into the mechanical device, start the operation, and treat it in a water bath at 30 ° C for 30 min.

Step 7: Take out the bag from the container, take out the sample, squeeze or centrifuge to remove excess solvent, and hang the sample in a ventilator for drying.

Step 8: The original sample and the original lining fabric are used as reference samples, and the discoloration of the sample and the staining of the lining fabric are evaluated by a gray sample card or instrument.

AVENO Machine Recommend:

AC10 Water Colour Fastness Tester

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