Now You Know List Chemical Testing Equipments for Dyeing Lab
Sunday 3 February 2019
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List Chemical Testing Equipments for Dyeing Lab
Mustaque Ahammed Mamun
Department of Textile Engineering
Dhaka University of Engineering & Technology (DUET)
Cell: +8801723300703
Email: mamuntex09@gmail.com
Department of Textile Engineering
Dhaka University of Engineering & Technology (DUET)
Cell: +8801723300703
Email: mamuntex09@gmail.com
Introduction:
Lab is the heart of the textile industry. Higher precision lab can aid easily to achieve the goal of the organization. Before bulk production a sample for the approval from industry is sent to the buyer as per the requirement of the buyer the shade is prepared in a lab considering the economical aspects. For doing all test different equipments are used in lab. All the equipments used in lab can be categorized into two i.e. equipments for lab dip preparation or chemical test and equipment for physical test. In this article we will discuss on equipments for chemical test.
List of Equipments for Chemical test:
Sample dyeing machine
Function: Used for dyeing the lab samples.
Machine specification:
Function: Used for washing to determine wash fastness of dyed fabric.
Machine specification:
Function:
Used to heat water when emergency hot water is needed for washing a sample manually.
Distilled Water Maker
Function:
Used to produce distilled water (0.5-1 liter distilled water is got from 2-2.5 liter normal water).
Application of distilled water:
Function:
Used to test the hardness of water.
Specification:
Test result is obtained by multiplying 300 with the reading of EDTA and the result is found in PPM.
Hot and Stirrer
Function:
Used for stirring the solution with the help of magnet.
Specification:
Function:
Used to get the weight of sample and different chemicals.
Specification:
Function: Used to dry the sample that has been wet treated.
Specification:
Function:
Checking color difference under different light source like D65, TL84, F, UV etc.
Specification:
This is a property of color for which its tone shows variation in different light source.
PH meter
Function: Used to determine the PH of a solution.
Specification:
Function:
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| Fig: Testing equipments for dyeing lab |
- Sample dyeing machine
- Washing machine
- Water heater
- Distilled water maker
- Water hardness tester
- Hot and stirrer
- Electric balance
- PH meter
- Oven
- Light box
- Data color-spectrascan
Sample dyeing machine
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| Fig: Sample dyeing machine |
Machine specification:
- Brand: Mathis LABOMAT
- Origin: Switzerland
- Capacity: 24 pots
- Dyeing pot capacity: 200 ml
- Heating system: Infrared heating system
- Cooling system: Cooling is done by using water
- Temperature: For polyester: 130˚C, For hot brand reactive dye: 80˚C-95˚C
- M:L: 1:6
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| Fig.:- digiWash Washing Machine |
Machine specification:
- Brand: Paramount
- Origin: India
- Capacity: 8 pots
- Pot capacity: 500 ml
- ECE detergent: 4 g/l
- Sodium perborate: 1 g/l
- Sample size: 10Cm×4Cm
- Multi-fiber fabric size: 5Cm×5Cm
- Test method: ISO 105-C06:1997/
- At first multi-fiber fabric measuring 5cm×5cm is sewn with the dyed sample measuring 10Cm×4Cm.
- Then the sample is placed into the test vessel that contains washing chemical.
- Then the vessel is placed into the machine and the machine is run for certain time under standard temperature.
- After the wash treatment, the treated sample is compared with the original untreated sample and any loss in color is graded with reference to the grey scale. This is done for assessing the change in color of the sample.
- The treated multi-fiber fabric is compared with untreated multi-fiber fabric with the help of color staining grey scale to assess color staining.
- Acetate
- Cotton
- Nylon
- Polyester
- Acrylic
- Wool
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| Fig.:- Water Heater |
Used to heat water when emergency hot water is needed for washing a sample manually.
Distilled Water Maker
 |
| Fig.:- Distilled Water Maker |
Used to produce distilled water (0.5-1 liter distilled water is got from 2-2.5 liter normal water).
Application of distilled water:
- Fabric PH check
- Saliva test
- Perspiration test
- Rubbing fastness test
 |
| Fig.:- Water Hardness Testing Kit |
Used to test the hardness of water.
Specification:
- Brand: HANNA
- Origin: Romania
- 5 ml water is taken in pot.
- 5 drops buffer solution and 1 drop indicator is added.
- Titration is done with EDTA.
Test result is obtained by multiplying 300 with the reading of EDTA and the result is found in PPM.
Hot and Stirrer
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| Fig.:- Hot and Stirrer |
Used for stirring the solution with the help of magnet.
Specification:
- Brand: Misung Scientific
- Model: MS300HS
- Origin: Korea
 |
| Fig: Electric Balance |
Used to get the weight of sample and different chemicals.
Specification:
- Brand: Precisa
- Origin: Switzerland
 |
| Fig: Hot air Oven |
Specification:
- Brand: Paramount
- Origin: India
- Temperature range: RT-250˚C
 |
| Fig: Verivide light box |
Checking color difference under different light source like D65, TL84, F, UV etc.
Specification:
- Brand: Verivide
- Model: HD 76AL
- Origin: China
- TL 84
- D 65
- F
- UV
This is a property of color for which its tone shows variation in different light source.
PH meter
 |
| Fig: PH meter |
Specification:
- Brand: HANNA
- Model: HI 2211
- Origin: Romania
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| Fig: Data color spectro photometer |
- Color matching
- Measuring color difference
- Measuring the reflectance % of a dyed sample
- Measuring the strength of dyestuff
- Brand: Premier Color scan
- Origin: India