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Flammability test

Aim: to find out how polyester fabric react near or to a flame.

Equipment: polyester fabric samples, matches, thongs, heatproof mat

Method: 1. Hold fabric to tong and apply flame slowly

2. Observe reaction and record observation.

Name of

fiber

(polyester)

Reaction

when

approaching

flame

Reaction

when in

flame

Reaction

when

removed

from

flame

Odour of

smoke

Length of

time to burn

completely

(seconds)

Appearance of

remaining ash

Satin Start melting

slowly

Melts and

shrinkvigorously

and becomes

black

Still

meltedand does

not catch

fire

Hard to

tellClose to

burning

paper mix

with wood

40 Hard, plastic like,

black

Organza Starts

melting

faster than

satin

Melts and

shrink

vigorously

and does not

melt to black

straightaway.

Still

melted

And

does not

catch

fire

Hard to

tell

Close to

burning

paper mix

with wood

36 Hard, plastic like,

black

In conclusion, organza burnt the fastest and this is probably due the thinness of

the fabric compared to satin which is a bit thicker. Both fabric reactions to flame

are nearly the same so they are polyester. This experiment is important as it

gives the manufacturers an idea of how the clothes will react when near flame

and can give out safety care for the clothes.

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Abrasion test

Aim: to discover how long it takes before a fiber wears or tears as a result of

abrasive contact.

Equipment: fabric samples, sandpaper, tape, piece of board.

Method: 1. Tape fabric to the board.

2. Use the sandpaper to rub in one direction using the same pressure

3. Count the number of rubs it takes until it makes a hole.

4. Record observations.

In conclusion, organza is the first to wear with little amount of rubbing. Again,

this may be due to it thinness of fabric and the loose weaves. Satin was very

durable and this may be due to the thickness of the material. This experiment isimportant as it give an estimated life of the fabric during abrasion.

Fabric

(Polyester)

Rub it takes until wear

and tear

Satin 74

Organza 14

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Microscope test

Aim: to examine fibers to see what they look like under the microscope and how

they feel

Equipment: fabric sample, microscope

Method: 1. Feel and look at fabric samples

2.Place fabric sample under the microscope

3. Adjust the lenses to focus on the image if needed

4. View the fiber under the microscope and record observations

Fiber

(Polyester)

What it looks like What it feels like What it looks like

under themicroscope

Satin Shiny on one side,

dull on the other

Smooth on one

side and a bit

rough on the

other, thick

Organza Shiny and

translucent

Thin, flimsy, light,

a little rough

In conclusion, we can see that since these two fabrics are made of polyester, the

threads are similar: they look like thin plastic pieces of thread. This experiment

is important as it determines the characteristics of the fiber.