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  1. Strength: Try to tear the cloth and make a note of whether it is easy to tear or not.
  2. Flammability : For this you will have to remember that working with fire is dangerous, because you may get burnt. You should keep a first aid kit at hand and work under supervision of your educator. You will need a pair of tongs, a candle, matches and a sheet of metal.

Set a corner of each piece of cloth alight and take note of the following:

Does it burn or smoulder? Does it burn quickly or slowly? Does it burn to ashes (a soft dust) or does it melt and form a hard pellet? Smell and feel the fabric after it has been burnt and cooled down. Does it smell like burnt paper or is there an acrid smell like chemicals?

  1. Absorbency: You will need water, a measuring jug, a bowl and a stopwatch. Lay the cloth in the bowl. Pour 50 ml of water on the cloth and check how long it takes for the cloth to get soaked. Does it happen fairly quickly or fairly slowly?
  2. Colour: Write down what the colour of the cloth is.
  3. Durability: For this you will need a brick. Rub each of the pieces of cloth back and forth against the brick. Count how many times you have to do this before the cloth is weak enough to be torn / worn through.
  4. Appearance: Describe the textile fabric. Is it coloured in plain colours, dark, light, or pastel colours, or patterned with stripes, checks, floral emblems, etc.?
  5. Texture: Feel it. Is it smooth, elastic, woolly, coarse, rough, corded, crunched?
  6. Feel: Is it soft and flexible or stiff?
  7. Warmth: Does it feel warm or cool?

Copy the following table, and complete:

Textile fabrics

1Nylon 2Polyester 3Cotton 4Silk 5Wool
  1. Strength
  1. Flammability
  1. Absorbency
  1. Colour
  1. Durability
  1. Appearance
  1. Texture
  1. Feel
  1. Warmth
  1. Natural (N) or
Synthetic (S)

[lo 1.3]

Assignment 6 B

  1. Are you able to identify three qualities of textile fabrics made from natural fibres?
  2. Are you able to identify three qualities of textile fabrics made from synthetic fibres?
  1. Complete by writing down the correct answer:

Textile fabrics made from wool are warm and are more suitable for (summer / winter) clothes because they retain heat, while textiles made from cotton and linen are more suitable for (summer / winter).

When heat flows through some solid material from where the temperature is high to where the temperature is lower, we speak of conduction . When we use a material that is a poor conductor to keep heat in or out, such a material is called an insulator . A cool bag or tea cosy is made from fibres that are poor insulators. Fibres like wool, leather, fur and feathers keep warm air in and they therefore are good insulators. Natural fibres like wool are therefore preferred for (summer / winter) clothing.

Synthetic fabrics (let water through easily / do not let water through easily) and keep heat (in / out).

[LO 1.3]

Assignment 6 C (enrichment)

Design an experiment for determining the crease resistance / colour fastness / elasticity of different textile fabrics.

  • Aim:
  • Method and requirements.
1Nylon 2Polyester 3Cotton 4Silk 5Wool
3 Observation ………………………………………………………
4 Conclusion (S of N) …………………

Questions & Answers

what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
How can I make nanorobot?
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
how can I make nanorobot?
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Technology grade 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10979/1.2
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