Yaa Description Of Physical Testing Equipments Of Dyeing Lab

Description of Physical Testing Equipments of Dyeing Lab

Mustaque Ahammed Mamun
Department of Textile Engineering
Dhaka University of Engineering & Technology (DUET)
Cell: +8801723300703
Email: mamuntex09@gmail.com

Introduction:
Existence of modern dyeing manufacturing flora cannot live idea without lab. Lab of a modern dye house tin terminate live considered equally the view of the industry. Different equipments are used inwards lab. All the equipments used inwards lab tin terminate live categorized into 2 i.e. equipments for lab dip preparation or chemic testify in addition to equipment for physical test. In this article nosotros volition hash out on equipments for physical test.

Fig: Equipments for physical test

Equipments for physical test:

1. Tumble dryer
2. Dimensional stability testify
3. PH meter
4. Perspirometer
5. Washing machine
6. Crockmeter
7. Yarn count tester
8. GSM cutter
9. Pilling tester

Description of equipments:

Tumble dryer:

Fig: Tumble dryer

Function: Used to dry out the sample.

Specification:

• Brand: Electrolux
• Model: T5130
• Origin: Thailand
• Capacity: 12 kg

Perspirometer

Fig: Perspirometer

Function:
Used to testify the color fastness of fabric against perspiration.

Specification:

• Brand: Paramount
• Origin: Republic of Republic of India

Sample size: 10Cm×4Cm

Perspiration solution:

Alkaline solution:

Chemical name	Amount inwards 1 ltr
Histidine monohydrochloride monohydrate	0.5 g
Sodium chloride	5.0g
Disodium hydrogen orthophosphate(Na2HPO4H2O)	2.5 g

Acid solution:

Chemical name	Amount inwards 1 ltr
Histidine monohydrochloride monohydrate	0.5 g
Sodium chloride	5.0g
Sodium di-hydrogen orthophosphate(NaH2PO4H2O)	2.2 g

Testing procedure:

• A sample mensuration 10Cm×4Cm is cutting in addition to a multi-fiber textile is sewn amongst it.
• The sample is dipped into the solution containing perspiration chemical.
• The sample is squeezed to take away excess chemical.
• Then the sample is placed into 2 plates of the perspirometer in addition to is pressed past times 12.5 KPa.
• After that together amongst the specimen the perspirometer is kept inwards oven at 37˚C for iv hours.
• Finally the sample is assessed for color alter in addition to the following textile for color staining.

Washing machine:

Fig: Washing machine

Function:
Used to launder the sample amongst criterion washing chemic inwards lodge to assess the dimensional stability of sample.

Specification:

• Brand: Siemens
• Capacity: vii kg
• Speed: 800 rpm

Crock meter

Fig: Crock meter

Function:
Used to testify the color fastness of textile against rubbing

Specification:

• Brand: Paramount
• Origin: Republic of Republic of India
• Test method: ISO 105-X12:1995

Testing procedure:

• Dyed specimens (10cm×4cm) are rubbed 10 times past times the weighted finger covered amongst undyed cotton wool cloth (5cm×5cm).
• For moisture rubbing the cotton wool cloth is wetted out earlier beingness rubbed on the dyed sample.
• Then the cotton wool cloth is examined for dye which may stimulate got been removed in addition to assessed using the grayness scales for staining.

Yarn count tester

Fig: Yarn count tester                                    Fig: Template

Function: 

Used to produce upward one's heed the yarn count of the supplied fabric.

Specification:

• Brand: Paramount
• Origin: Republic of Republic of India

Testing procedure:

• Fabric sample is cutting past times placing the template on the textile in addition to the yarns are unraveled from the sample.
• Standard weight is kept on the verge of the machine.
• Then the unraveled threads are kept on the claw of the machine i past times i until the pointer is inwards degree amongst the datum line.
• When pointer is inwards degree amongst datum describe in addition to thus the yarns set on the claw are counted which indicates the yarn count.

GSM cutter

Fig: GSM cutter

Function:
Used to cutting sample for GSM check.

Testing procedure:

• Sample is cutting past times GSM cutter.
• Then the sample is weighted past times using electrical balance.
• GSM is constitute past times multiplying the weight amongst 100.

Pilling tester

Fig: Pilling Tester

Function: 

Used to testify the resistance of textile against pilling.

Specification:

• Model: digiPILL Nx
• Brand: Paramount
• Origin: Republic of Republic of India
• Sample dimension: 25cm×12.5cm

Testing procedure:

• Sample having the dimension 25cm×12.5cm is rolled onto a parcel in addition to and thus it is kept into the box of the machine.
• Machine is run in addition to continued upward to the desired cycle.
• After completion of the desired bicycle the sample is compared amongst criterion photographs to know the pilling resistance of the fabric.

Shrinkage testify

Fig: Glass template for shrinkage testify

Shrinkage testing procedure:

• Sample whose shrinkage testify is to live done is placed on the table.
• Putting the drinking glass template on sample in addition to marking amongst unchangeable mark is done.
• Then the sample is washed at 60˚C temperature for xc minutes.
• Sample is dried out.
• Three points on warp side in addition to three points on weft side are checked to observe out the dimensional alter and hateful value is taken for accurate result.

Remarks:
It has to select a cordial indebtedness to the Authority for giving us such unique chance for visiting their lab. Hope cognition earned from the lab is thus much beneficial for a textile engineer to serve himself equally lab personnel. Basically nosotros were introduced amongst dissimilar laboratory equipments, their piece of work in addition to too the testing procedure. And promise all the turn a profit volition live thus much beneficial for us. Above nosotros wishing to pay our cordial honor to our honorable instructor Md.Shahjalal Kandoker for his squeamish co-operation in addition to unopen supervision for doing this job.

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