Yaa Working Procedure Of Martindale Abrasion Cum Pilling Tester
Tuesday 18 December 2018
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Working Process of Martindale Abrasion cum Pilling Tester
Md. Abu Shaied Peash
Dept. of Textile Engineering
Primeasia University
Dhaka, People's Republic of Bangladesh
Email: peashwork9@gmail.com
Dept. of Textile Engineering
Primeasia University
Dhaka, People's Republic of Bangladesh
Email: peashwork9@gmail.com
Introduction:
Martindale Abrasion cum Pilling Tester is used to banking concern check the abrasion equally good equally pilling resistance of the fabric. It consists of 4 testing plates on which the abrading fabrics is attached, these 4 testing tabular array are mounted on the base of operations plate of the instrument. There is revolving plate, which revolves amongst the aid of 3 cranks, pegs & motor. There are 4 sleeves attached on the revolving plate. The sample holders for abrasion & pilling testing are provided amongst the instrument. There is a laid of weights for proper pull per unit of measurement area on the exam specimens. Templates for cutting the samples & abrading cloth too their mallet are also supplied equally measure accessory.
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| Martindale Abrasion cum Pilling Tester |
- Holder direct
- Motor on/off switch
- Weight
- Power on/off switch
- Traveller top plate
- Power indicator
- Form
- Electronic counter
- Fabric Disc
- Fabric encompass lock
- Tightening holder
- Cranks (3)
- Sample holder
- Effective speed ratio of outer pegs to inner pegs
- 4 specimen tin live tested simultaneously.
- Maximum charge (corresponding to pull per unit of measurement area of 12KN/m2): 790g
- Comprise of stainless steel balls.
- Acrylic Top Plate for safety.
- The Abrasion of the stuff tin live tested through ii methods.
- GSM cutter
- Digital remainder
- Martindale pilling & abrasion tester
Sample size : (40*40) mm2
No. of wheel : 50,000
Rpm : 65±2
Weight loss inwards mg
Formula : wearable index, I = (……………………. X 100)%
No of cycles
Weight lose = (X1-X2)mg
Working Procedure:
- At kickoff cutting the stuff into 4 pieces according to the measuring of the instrument.
- Weigh(X1) these 4 pieces of stuff samples.
- Now house these samples inwards the musical instrument nether a sure enough charge equally supplied inwards the instrument.
- Now start the machine too let out the counter of abrasion no.
- Stop the machine mightiness subsequently completing 50,000 cycles get got the weigth (x2) inwards mg.
- Now seat the weights earlier too subsequently abrasions inwards a tabular array too let out out the wearable index (I).
| S/n | Sample wt. (x1) earlier abrasion (mg) | No. of abrasion wheel | Sample wt.(x2) subsequently abrasion (mg) | Wt. loss (mg) | Wear index (I) % |
| 1 | 870 | 50,000 | 590 | 280 | 0 . 56 |
| 2 | …………… | …………….. | ………………… | ……….. | …………… |
| 3 | ……………… | ………………… | …………………. | ……….. | ……………… |
| 4 | …………………. | ……………… | ……………… | ………… | …………. |
Suppose for s/n 1 : nosotros got wheel = 50000, wt. loss = 280gm therefore,
Wear Index (I) = {(weight lose inwards mg)/no. of cycles }*100
= (280/50000)*100 = 0.56 %
Result:
Wear index for 50000 wheel = 0.56 %
Comments:
It is easily understood that the to a greater extent than is no. of abrasion wheel the to a greater extent than volition live the wt. loss of fabric. That is when a stuff is used to a greater extent than it losses its weight more. Now depending on yarn quality, stuff pattern too higher upwards all destination role this loss may live less or more, i time to a greater extent than may live speedily or lately. But indeed the fabrics volition loss its weight too serviceability. So, finally nosotros tin state that the to a greater extent than wearable index value the less durability of the fabric.