WashTrue

Colourfastness to washing is the resistance of a textile’s colour to fading or running. It refers to what happens during laundering. This is a key quality measure in textiles. It ensures that garments keep their appearance. They do not stain other items during washing. Colourfastness to washing is evaluated by subjecting the fabric to a controlled washing process. Then, the degree of colour change and staining is assessed.

The washing fastness test rates how well a fabric’s color holds up to washing. Here’s a detailed breakdown of a standard test method. It follows the ISO 105-C06 or AATCC 61 standards.

Color Fastness to Washing Test Method Overview

1. Sample Preparation:

• Cut the fabric sample to a specified size, typically 10 cm x 4 cm.
• Attach the fabric sample to an adjacent fabric. This fabric is often a multi-fiber strip. It includes fibers like cotton, wool, nylon, polyester, acrylic, and acetate.

2. Washing Solution:

• Prepare the washing solution according to the specified standard. This usually includes a standard detergent and sometimes additional chemicals like sodium perborate.
• The colour fastness to the washing test standard defines the concentration and composition of the washing solution.

3. Washing Procedure:

• Place the sample and the multi-fiber strip in a washing container. This could be a launder-o-meter or a similar device that simulates home or industrial laundering.
• Add the washing solution to the container.
• Set the Rotawash machine to the specified temperature and agitation settings. Common conditions might include:
  
  
  • ISO 105-C06: Washing at 40°C or 60°C for a set duration with specified mechanical agitation.
  • AATCC 61: Washing at 49°C (120°F) or 60°C (140°F) for 45 minutes with mechanical agitation.

4. Rinsing and Drying:

• After washing, rinse the samples thoroughly in water to remove any residual detergent.
• Dry the samples according to the Color Fastness to Washing Test Standard, usually air drying or specified machine drying conditions.

5. Assessment:

• Colour Change: Compare the washed fabric sample against an unwashed control sample. Use a grey scale for colour change to rate the degree of fading.
• Staining: Assess the adjacent fabric (multi-fiber strip) for staining. Use a grey scale for staining to evaluate the degree of colour transfer.

Rating Scales

• Grey Scale for Colour Change: This scale ranges from 1 to 5, where:
  
  
  • 5 = No change (excellent fastness)
  • 4 = Slight change
  • 3 = Noticeable change
  • 2 = Significant change
  • 1 = Severe change (poor fastness)
• Grey Scale for Staining: This scale also ranges from 1 to 5, where:
  
  
  • 5 = No staining (excellent fastness)
  • 4 = Slight staining
  • 3 = Noticeable staining
  • 2 = Significant staining
  • 1 = Severe staining (poor fastness)

The standards measure colour fastness to washing. They evaluate how well a textile’s colour withstands washing. These standards ensure consistency and reliability in testing across different laboratories and manufacturers. Here are some of the most commonly used standards:

ISO Standards
ISO 105-C06
This is one of the most widely recognised international standards. It assesses colour fastness to washing. The ISO 105-C06 standard includes several test procedures. Each is for different washing conditions.

• ISO 105-C06 A1S: Washing at 40°C with soap.
• ISO 105-C06 B2S: Washing at 50°C with soap and soda.
• ISO 105-C06 C2S: Washing at 60°C with soap and soda.

The Colour Fastness to Washing Test Standard covers three things. It covers the preparation of samples, washing procedures, and the evaluation of Colour Fastness to Washing Rating, colour change, and staining using grey scales.

AATCC Standards
AATCC 61
This Colour Fastness to Washing Test Standard is widely used in North America. It specifies test methods for colorfastness to laundering. The tests typically simulate five home or commercial launderings.

• AATCC 61-1A: Laundering at 49°C (120°F) for 45 minutes.
• AATCC 61-2A: Laundering at 49°C (120°F) for 45 minutes with a higher concentration of detergent.
• AATCC 61-3A: Laundering at 60°C (140°F) for 45 minutes.

These Colour Fastness to Washing Test Methods have set conditions for washing, rinsing, and drying. The results are evaluated using grey scales for colour change and staining.

JIS Standards
JIS L0844
The Japanese Industrial Standards (JIS) provide methods for testing colour fastness to washing:

• JIS L0844 specifies washing at different temperatures and conditions. This is similar to ISO and AATCC methods.

BS Standards
BS EN ISO 105-C06
The British Standards Institution (BSI) adopts the ISO 105-C06 standard. This aligns UK practices with international testing methods.

Key Elements of these Standards

1. Sample Preparation: All standards specify the size and prep of textile samples. They also specify the prep of the adjacent fabrics (multi-fiber strips).
2. Washing Conditions: Detailed conditions for temperature, detergent composition, mechanical agitation, and duration.
3. Rinsing and Drying: Procedures for rinsing and drying samples after washing.
4. Assessment: Use grey scales to evaluate colour change and staining on nearby fabrics.

Grey Scales

• Grey Scale for Colour Change: Measures the degree of fading, with ratings from 1 (severe change) to 5 (no change).
• The Grey Scale for Staining measures colour transfer. Ratings range from 1 (severe) to 5 (none).

Importance of Adhering to Standards
Following these Colour Fastness to Washing Test Standards ensures that textile products are tested consistently. They provide reliable data on how the products perform during laundering. This is crucial for manufacturers, retailers, and consumers, ensuring product quality and longevity.

Conclusion
They can use standards like ISO 105-C06, AATCC 61, JIS L0844, and BS EN ISO 105-C06. These let labs and makers check and promise the colour fastness of textiles to washing. This ensures high-quality products that meet consumer expectations.

Single-cylinder models:

• • Characteristics: Single-cylinder color fastness to washing testers usually have one cylinder and can test a small number of samples at the same time. It is suitable for smaller batch testing or basic laboratory testing needs.
  • Scenarios: The single-cylinder models are suitable for handling smaller laboratory tests or for use in a low frequency testing environment. For users with small sample sizes and infrequent testing, the single-cylinder tester can meet basic washing colour fastness testing requirements.

Dual Cylinder Model:

• • Characteristics: The double-cylinder tester, on the other hand, is equipped with two independent cylinders and can perform two sets of tests simultaneously, which can significantly improve colour fastness to washing testing efficiency. Usually, two groups of samples can be tested under different test conditions (e.g. different temperatures, different times, different soaps or reagents).
  • Applicable scenarios: The dual-cylinder model is suitable for users who have a high frequency of testing or need to test multiple batches of samples at the same time. Especially for laboratories or factories that handle a large number of samples or need to obtain multiple sets of color fastness to wash test results quickly, the Dual Cylinder model can increase productivity.

The Colour Fastness to Washing Tester is a lab instrument. Textile materials use it to test how well they keep their colour during washing. One can measure how much colour fades or bleeds. Fabrics or clothes can experience this when washed many times.
The Washing Fastness Tester has a stainless steel container. Water and detergent fill it. The textile sample is a fabric swatch or a garment piece. To mimic real washing conditions, place it inside a mesh bag or a basket. The bag or basket contains the sample. It stops it from touching the agitator or other machine parts.
In the Wash Fastness Test, the tester agitates the water and detergent. It simulates the action of a washing machine. This agitation causes the fabric to rub against itself and other surfaces. This rubbing can lead to colour loss or transfer. The washing process can use different temperatures, cycle lengths, and agitation modes. These simulate various washing conditions.
After washing, someone takes out the sample. Someone checks for colour changes. We test the colorfastness by comparing the sample’s colour before and after washing. You can do this assessment. Or, you can use instruments like spectrophotometers to get aim colour data.
The Colour Fastness Tester is common in textile and garment industries. It tests whether the fabrics and garments keep their colour. They should not fade or bleed during repeated washing. The test results can guide manufacturers. They can help in choosing dyes, finishes, and laundering methods. These choices can boost the colorfastness of their products.

The Rotawash Colour Fastness to Washing Tester simulates washing’s effect on fabric colour. In the testing chamber, researchers mount fabric samples onto steel holders. They mimic a washing machine’s conditions. The chamber fills with water and detergent, replicating laundry cycles. Fabric samples undergo agitation and friction during washing, simulating mechanical stresses. After cycles, standardised colour size techniques check colour changes. The Colour Fastness Tester gives a reliable method for testing material colour fastness. It ensures that textiles meet quality requirements over the years.

The WashTrue Washing Fastness Tester comprises many fabrics, including cotton, polyester, wool, nylon, and blends. It is suitable for testing textiles in clothes, upholstery, and business programs. With its versatility, the Colour Fastness to Washing Tester can simulate diverse washing situations, temperatures, detergent formulations, and agitation levels. This flexibility allows for comprehensive testing, ensuring fabric performance aligns with real-globe laundering eventualities.

The WashTrue Colour Fastness to Wash Tester gives colour fastness results. We interpret them by analysing colour change. They look at transfer after washing. Standardised criteria established by regulatory bodies or industry businesses guide result interpretation. Little colour change and transfer suggest good colour fastness. But, big adjustments may mean dye went in or the fabric has issues. Interpretation considers elements like fabric composition, dye kind, and intended use. Results inform choices on product labels, advisories, and quality rules. They ensure the making of long-lasting, colourfast textiles. For more about the colour fastness of washing test machines, contact ChiuVention. We are a textile testing machine maker with rich testing knowledge.

The WashTrue Color Fastness to Washing Tester is a complicated device. The test measures how well fabrics keep their color after many washings. Underneath are the special specifications of this testing device:

1. Temperature Settings and Heating Rate
Temperature setting range: Regular temperature (>0°C) to 95°C
Heating rate: 1.5±0.5℃/min
Temperature accuracy: ± 2°C
The Washing Fastness Tester allows unique control over wash temperature. This ensures regular and reliable test results.

2. Speed and Distance
Speed: 40 ± 2 r/min
Distance from the lowest of the cup to the rotary axis: 45±10 mm
These parameters determine the agitation and stress on the fabric samples during washing. They replicate real-world laundering conditions.

3. Popular accessories:
Test steel cup: 550±50mL or 1200±50mL (12 pcs)
Stainless steel ball: φ6±zero.5mm (2oo pcs)
Fuse: 380V 32A (4 pcs)
Inlet pipe: 1 pc
Drain pipe: 1 pc
Tape: 1 pc
Screwdriver: 1 pc
Throat hoop: 1 pc
Sampling plate: 40 x 100 mm, 50 x 100 mm, 50 x 150 mm (3 pcs)
Rubber gloves: 1 pc
ISO sealing or AATCC sealing: 12 pcs
Measuring cup: 100ml (1 pc)
These accessories make the test easier. They ensure that results are correct and standard. The results must follow the established testing protocols.

The WashTrue Washing color Fastness Tester conforms to many worldwide standards. It conforms to the following:
ISO 105 C06:2010
AATCC61-2013e3
GB/T 12490-2014
ISO105-C08-2010
GB/T 29255-2012
ISO105-C09-2010/amd.1:2003
GB /T 23343-2009
ISO 105 C10:2006
GB /T 3921-2008
ISO105-E03:2010
ISO105-E12:2010
M&S C4A
AATCC190-2010e2(2016)e2
NEXT TM 02
The requirements ensure that the colour fastness to washing meets industry needs. It also meets quality benchmarks.

The Colour Fastness to Washing Tester has a smart screen. Operators can navigate using many operations. These tasks include choosing test needs. They also include setting custom options. You can set the temperature, the heating rate, choose the type of test cup, the test standard, the number of steel balls, etc.
And this GyroWash colour fastness to washing tester has the IoT function, you can complete all the settings as well as monitor the whole Colour Fastness to Washing Testing process on your smartphone, which is very convenient and efficient.

The Colour Fastness to Wash Tester’s smart interface boosts efficiency. It allows quick access to many operations and parameters. Operators can select test requirements, parameters, and temperatures. They can streamline tests, saving time and resources. This efficiency empowers users. The simple interface minimises complexity. It ensures smooth user testing reviews across many types of programs and industries.

The Washing Fastness Tester has a smart temperature control algorithm. It ensures the precise and powerful law of test water temperature. This option enhances testing reliability. It does this by keeping steady and accurate temperatures throughout the Colour Fastness to Washing Test. Operators can rely on the Washing Fastness Tester. It provides solid conditions, reducing variability and ensuring reproducible effects. The precise temperature control feature is key. It helps ensure reliable test results. This makes the Washing Fastness Tester a trusted tool for quality assessment. Textile and fabric industries use it for research.

The Washing Colour Fastness Tester has a human touch. It has functions that make it strong and easy to use. One function is smart temperature management. It is a set of rules that guarantees precise temperature control. It also boosts the equipment’s durability. The Washing Colour Fastness Tester minimises wear and tear. It does this by keeping the best operating conditions. This prolongs its life and cuts maintenance needs. Also, its user-friendly layout complements usability. It makes it intuitive and handy for operators. The sturdiness and user-centric format make the Washing Colour Fastness Tester reliable. It is also efficient for fabric Colour Fastness to Washing Test.