Color Fastness to Water Test, ISO Method

The ISO Method for color fastness to water testing involves exposing a fabric sample to a controlled amount of water, and then assessing the degree of color change or bleeding that occurs. The sample is first wetted with distilled water, then agitated in a washing machine or by hand for a specified period of time. The sample is then rinsed and dried, and the color change is evaluated using a grey scale or by comparing the sample to a control sample. This test is used to determine the resistance of the color of a textile to water and is used to check the quality of the textile.
The ISO method for color fastness to water tests the ability of a fabric's color to resist fading or bleeding when it comes into contact with water. This is important because fabrics that are not colorfast to water can fade or change color when they are washed or exposed to rain or other forms of water. This can cause a product to look worn and discolored, making it less attractive to consumers. By performing a color fastness to water test, manufacturers and textile researchers can ensure that the fabric they are using will retain its color and appearance even when it comes into contact with water. This helps ensure that the products made from the fabric will be of high quality and will retain their value over time.
The ISO 105-E03 standard for color fastness to water test uses a rating system to evaluate the color fastness of a fabric. The test uses a scale of 1-8, with 8 being the best rating and 1 being the worst rating. The rating is based on the amount of color change and staining that occurs when the fabric is exposed to water.
1-3 means poor colorfastness,
4-5 means fair colorfastness,
6-7 means good colorfastness
8 means very good colorfastness.
This test is done to ensure that the color of the fabric will not fade or bleed excessively when it comes into contact with water. This is important because fabrics that are not colorfast to water can fade or change color when they are washed or exposed to rain or other forms of water, which can cause the product to look worn and discolored, making it less attractive to consumers.
ISO 105-X12: Standard for colorfastness to light, using a rating system of 1-8
ISO 6330: Standard for washing fastness, using a rating system of 1-5
ISO 12945-2: Standard for abrasion resistance, using a rating system of 1-5
ASTM D1117: Standard for water vapor permeability, measured in units of g/m²/24h
ASTM D5034: Standard for breaking strength and elongation, measured in units of pounds or newtons
AATCC TM 135: Standard for antimicrobial activity
ISO 11611, ISO 11612: Standard for protective clothing against heat and flame

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