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Fabric Shrinking

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marian de la fuente

on 31 March 2014

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Transcript of Fabric Shrinking

Fabric Shrinking
Team Members:
Marian De la Fuente
Pamela Garza
Ana Sofía Ríos
Roberto Cavazos
Eduardo Villarreal
Nayeli Hernandez

Teacher: Miss Pamela Valadez

Colegio San Patricio
What type of fabric shrinks more?
Our hypothesis is that cotton will shrink more.
Heat is usually the culprit behind the shrinkage of clothes. Very hot water in the washing machine or high-heat drying, either from a laundry dryer or even hot heat from the sun will reduce the size of clothes. Fabric shrinks because of what is called relaxation shrinkage. During clothes construction, tension is applied to fabrics. Tension is released under heat.
In our experiment, we washed 5 different types of fabric. We brought two samples of each, so we washed one sample with water, and the other with water and soap. One day, we let them dry with little sun and wind, and the other day, we dried them with a dryer machine. That way, we know which fabric shrinks more, if soap affects shrinking, and how much is the difference between drying them naturally; and in a hot place.
At the end of our experiment, we found out that cotton is the fabric that shrinks more, then nylon, next satin, then polyester, and at last silk. Now we know the answers to the fabric shrinking main questions.
The properties of cotton include its strength and durability. Cotton is also soft and comfortable and has very good absorbency ability. The fiber also prints well and has good color retention.

It can be classified as saturated and unsaturated polyesters. Saturated polyesters refer to that family of polyesters in which the polyester backbones are saturated.Unsaturated polyesters are mostly used in reinforced plastics. These are the most widely used and economical family of resins.

It has flow and luxurious sheen which come from its smooth, continuous, triangular fibers which reflect light. It is also a very strong, elastic fiber which can stretch 20-25% without breaking and will stretch back.

It is not the name of a raw material; it refers to the weave of the fabric. Satin is made from a low-twist yarn which is like a filament and is constructed using a process similar to a twill weave. Silk, cotton, wool and polyester are all fibers that are commonly woven into satin.

One of nylon's most valuable properties is its high tensile strength. Its strenght derives from hydrogen bonds between neighboring chains, which enable the nylon to form tough, durable fibers that hold together under stress. Nylon is abrasion-resistant and resistant to attack by many chemicals; it is easy to wash and can be dyed during preparation. Its melting point is 263 degrees Celsius.
• Laundry soap
• 2 Buckets with water
• Measuring tape
• 2 Nylon fabrics
• 2 Cotton fabrics
• 2 Silk fabrics
• 2 Polyester fabrics
• 2 Satin fabrics
1. Cut the fabrics.
2. Measure each fabric and take note.
3. Wash 1 of each type of fabric with water, and the others with water and laundry soap.
4.Dry them in with sun and air.
5. Measure and take note of each fabric when they are already dry.
6. Wait one day and then repeat step 3.
7. Measure and take note of each fabric when they are already dry from the dryer machine.

When we washed with water and soap, it shrank more than with just water.

When it dried with wind and sun, it shrank more than with the dryer machine because it was the first wash.

Cotton shrank more, then nylon, next satin, then polyester, and at last silk.

Colegio San Patricio
Science Fair 2014
Fabric Shrinking

Our hypothesis was correct, cotton was the fabric that shrank more in the first wash with water and water and soap. In the second wash, it didn’t shrink, but even if you add the difference of both washes, cotton shrinks more. After cotton, the one that shrinks more is nylon, next satin, then polyester, and at last it is silk.
We hope you enjoyed it
Cotton 4.5 cm
Silk 0.4 cm
Nylon 1.9 cm
Polyester 0.5 cm
Satin 0.8 cm
Water and Soap
Cotton 5.6 cm
Silk 0.6 cm
Nylon 0.9 cm
Polyester 0.6 cm
Satin 0.4 cm
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