The main function of dry cleaning is; It is to ensure that they are long-lasting by not wearing out the fabric tissues damaged by wet cleaning.
In addition, frequent dry cleaning helps the clothes to have a new appearance by removing the dirt and filth that settles on the clothes over time, penetrates the fabric fibers and has abrasive effect such as sandpaper.
This test aims to determine the color fastness of textile products to dry cleaning. ( TS 473 EN ISO 105-DO1 )
Used materials
Steel containers (stainless or glass)
Glass tubes (25 mm diameter)
Perchlorethylene
Gray Scale
Mechanical device (Features: The device consisting of the shaft and the container, the shaft should be able to rotate with an average of 40 rpm. The distance between the shaft axis and the base must be at least 45 mm), Steel discs (Features: Stainless, mass 20 g, diameter 30 mm, thickness 3 mm ), Fabric pieces (Features: Undyed cotton twill. (Average 270 grams/square meter mass, 12 cm x 12 cm dimensions)
sample preparation
The fabric sample to be used in the experiment is prepared in dimensions of 100 mm x 40 mm.
Conducting the Experiment 2 pieces of undyed cotton twill fabric are placed on top of each other and sewn on three sides. A square fabric bag with dimensions of 100 mm x 100 mm is formed.
The sample fabric and 12 stainless steel discs are put into the fabric bag and the bag is closed.
The bag is placed inside the device.
30 ml of perchlorethylene is added to the washing device at a temperature of 2 ± 200 ˚C.
The washing device is started and the sample is treated for 30 minutes.
The bag is removed from the device and the test sample is taken from the bag.
The sample fabric is hung to air dry at 60 ± 5 ˚C.
The color change in the sample fabric is detected using the gray scale.
The solvent remaining in the container is passed through filter paper.
The color of the filtered solvent is then compared with the solvent that has never been used.
Flow is determined by gray scale.
Rubbing staining of the tested sample is checked and evaluated using the Gray scale.
Two types of gray scales are used for the rubbing fastness test.
One of them is 5 scale.
The lowest fastness value is 1 and the highest fastness value is 5.
The other gray scale is 9 scale.
In this scale, the lowest and highest fastness values are the same as in the 5-scale scale.
AHowever, there are intermediate values between each value.
Therefore, more precise measurements can be made.
Fastness values in 9 scale gray scale are as follows.
1 Lowest fastness value
1-2
2
2-3
3
3-4
4
4-5
5 Highest fastness value
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