Washing Fastness Tester
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Launderometer TF418

4.25 out of 5 based on 4 customer ratings
(4 customer reviews)

Launderometer, to determine color fastness to washing or dry cleaning to ISO, BSI, AATCC and Marks & Spencers standards. Washing Fastness Tester complies with AATCC 61/86/132/151/190, ISO105-C01/C02/C03/C04/C06, ISO105-C07/C08/C09/D01/E03/E12, etc. Color fastness to washing is directly related to our health.

Application

Washing Fastness Tester (Launderometer), to determine color fastness to washing or dry cleaning to ISO, BSI, AATCC and Marks & Spencers standards.

The washing fastness tester uses stainless steel rotor to holds washpots on each of four sides and rotates at a constant 40 rpm (+/-2 rpm). Washpots are preheated in appropriate test solution.

Containers are sealed with either a Neoprene rubber gasket or optional Teflon gasket.

To carry out the tests of AATCC and ISO standard fast, TESTEX redesigned the launderometer, with two baths to offer a maximum combined capacity of 12 and 6 vessels, and the baths have completely separate controls and drive systems, so they can be used as two independent machines for both ISO and AATCC standards. Opening door, test-finished alarm, etc.

Stainless-steel balls and pieces are included.

Single bath combined with both ISO and AATCC washpots in less quantity are offered on request.

Specifications

  • Rotation speed 40 +/- 2rpm
  • AATCC canister   1200ml, 6 pcs
  • ISO canister    550ml, 12 pcs
  • Max 98 oC, adjustable
  • Running time adjustable
  • Steel Balls           200 pcs

Weight

180 kg

Power

380 V50 Hz10 A

Dimensions

Width:700 mmLength:1100 mmHeight:1000 mm

Standards

AATCC 61AATCC 86AATCC 132AATCC 151AATCC 190ISO 105-C01
ISO 105-C02ISO 105-C03ISO 105-C04ISO 105-C06ISO 105-C07ISO 105-C08
ISO 105-C09ISO 105-D01ISO 105-E03ISO 105-E12M&S C4AM&S C5
M&S P3BM&S C10AM&S C11M&S C26M&S C37M&S C49A
M&S P137NEXT 2NEXT 3NEXT 5IWSTM 7IWSTM 115
IWSTM 177IWSTM 193IWSTM 199IWSTM 240IWSTM 241FTMS 191-5610
FTMS 191-5622

 

Comparison of colour fastness to washing test methods of textiles

1.Overview

The washing fastness of textiles refers to the ability of the textile to maintain the original color under the washing condition, that is, the ability of not fading and changing color. ISO 105C01-C05 provides several test methods for color fastness to washing, covering the range from mild to intense washing operation, as a classic color fastness test method, which is still widely used today. The determination of color fastness to washing of the whole cotton fabric using washing fastness test ISO 105-c03 method, China’s GB/T 3921. 3-1997 standard is based on the modification of the formulation, so its technical content and international standards are not different, applicable to any form of textiles.

In addition to the above 2 standards, there are many international standards on the testing of textiles fastness to washing, such as AATCC 61-1A of US, British BS 1006-C01, ISO 105-c06 of the ISO, JIS L0844 of Japan, etc.

 

2. Comparison of washing fastness test methods

A. Chinese Standard (GB/T 3921.3-1997)

Take a 4cmx10cm specimen, the front is contacted with a 4~10cm adjacent fabric, stitched along a short edge to form a composite specimen and placed in a stainless steel container with a capacity (550±50) ml [diameter (75±5) ml, high (125±10) ML], injected required amount of soap liquid preheated to (60 ±2) ℃, bath ratio of 50:1. The combination specimen is treated with 30min under the condition of (60±2) ℃, then the combination specimen is removed and washed 2 times with the cold three water, then the 10min is rinsed in the flowing cold water. Squeeze the moisture and expand the composite specimen so that the specimen and the adjacent fabric are only connected by a single seam and are suspended in the air not exceeding 60 ℃. Take out the dry combination specimen and use the Grey sample card to evaluate the discoloration of sample and the staining of the adjacent fabric.

 

B. Standards of the American Association of Textile Chemists and Colorants (AATCC 61a-2003, color fastness to washing aatcc)

A 50mmx100mm specimen is taken, the front is contacted with a 5mmx100mm adjacent fabric, stitched along a short edge to form a composite specimen and placed in a stainless steel container with a capacity (550±50) ml [diameter (75±5) ml, high (125±10) ml], with injection of required amount of soap liquid preheated to (40±2) ℃, so that the bath 200mL. The composite specimen is processed under (40±2) ℃ for 45min and then removed combined sample, rinsing 3 times with (40±3) ℃ distilled water for 1min, then squeezing away moisture. The combination specimen is expanded so that the specimen and the adjacent fabric are only connected by a single seam and are suspended in the air not exceeding 71 ℃.Take out the dry combination specimen and use the Grey sample card to evaluate the discoloration of the sample and the staining of the adjacent fabric.

 

C. Japanese industrial standard (JIS l0844-2005)

A 4cmx10cm specimen is taken, the front is contacted with a 4cmx5cm nylon adjacent fabric, stitched along a short edge to form a composite specimen and placed in a stainless steel container capacity (550±50) ml [diameter (75±5) ml, high (125±10) ML], injected required amount of soap liquid preheated to (50 ±2) ℃, bath ratio of 50:1. The combination specimen is treated with 30min under the condition of (50±2) ℃, then the combination specimen is removed and washed 2 times with the cold three water, then is rinsed in the flowing cold water for the 10min. Squeeze the moisture and expand the composite specimen so that the specimen and the adjacent fabric are only connected by a single seam and are suspended in the air not exceeding 60 ℃. Take out the dry combination specimen and use the Grey sample card to evaluate the discoloration of the sample and the staining of the adjacent fabric.

 

D. Differences between different methods of measurement

The main differences between countries ‘ methods of measurement are shown in table 1.

Table 1 Main differences between national methods of measurement

StandardsSpecimen size /mmWashing temperature /℃Washing
Between/min
Bath ratio Washing DetergentsMetal Ball
GB40×10060±23050:1Chinese LotionNo
ISO40×10060±23050:1SM49No
AATCC50×10040±245200mLAmerican Standard LotionNo
JIS40×10050±23050:1Japanese LotionNo

 

3. Experimental Comparison and analysis

Pure cotton samples of black, navy, red, brown, yellow and other colors are tested according to different testing methods, and the colour fastness to washing test results found that there is a certain difference in the fastness of washing values, in which colour fastness to water measured according to the United States and Japan standard is significantly higher than the Chinese standard, the maximum difference of 1 levels, and washing fastness measured based on the Japanese standard slightly higher than the United States standard’s. The difference of washing fastness value is caused by the different conditions of washing temperature and washing time in the color fastness to washing standard of the test specimen.

The solution of dye is related to the water solubility of the fuel molecule. The sulfonic acid in the fuel is bonded with the fiber. When the dyed fabric invades the water, the hydrogen bonding is cut, some dyes will leave the fiber and dissolve in water. The dyed matter in the washing fastness machine is stirred and the pigment of the insoluble dye is also removed from the fiber by agitation.

The higher the washing temperature, the longer the time, the bigger the bath ratio, the more intense the stirring, the higher the dye shedding rate. Chinese and Japanese standards used in the same washing time, bath ratio are the same, China’s standard use of washing temperatureis higher than Japanese standard, and the colour fastness to washing grading is lower to 0.5~1 grade than Japanese standar’s. The United States standard washing temperature is the lowest, but by adding long washing time, increasing the washing bath ratio or adding stirring matters, these ways will increase the dye on the fabric shedding rate.

 

4. Error analysis

  • The differences in the adjacent fabric will result in test errors. Though with the same sample and the same method, the results vary when using different adjacent fabrics for stained-color testing. Because of the different fabric structure, composition, yarn branch, density and finishing process, technologies, etc., it will directly lead to the difference of the color-stained property of the fiber fabric, and ultimately affect the color fastness to washing test
  • When rating the color fastness test sample in the standard light box, the intensity of light will cause the eyes to fatigue if the rating time is too long, affecting the accuracy of evaluation.
  • When grading, the light source illumination and the specimen surface assumes 40 degrees angle, and the line of sight should be perpendicular to the specimen surface, the distance to 30~40cm advisable, otherwise will affect the evaluation result.
  • The removal of the loose fibers attached to the surface of the adjacent fabric also affects the evaluation results.

 

5. Summary

There is a big difference between the values of washing fastness measured by different national test standards, and the test requirements for the fastness to washing of textiles in accordance with Chinese standards are stricter than those of the United States and Japan.

 

The more specific information about launderometer testing, like color fastness to washing definition, can obtain from this link: http://www.testextextile.com/introduction-dye-color-fastness-washing-color-fastness/.


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4 reviews for Launderometer TF418

  1. 4 out of 5

    :

    На вид очень качественный.

  2. 4 out of 5

    :

    everything is ok

  3. 5 out of 5

    :

    I am so satisfied with this washing fastness tester for its reasonable price and good performance. Recommend!

  4. 4 out of 5

    :

    The Launderometer testing well

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