GPT- Garment Package/Performance
Test
This test is done to analyze the performance of a garment
after washing by the customer as per the wash care label.
We need three identical garments to perform this
test:
1. One
Garment- Dimensional Stability
2. One
Garment – Appearance
3. One
Garment – Seam Slippage and Strength
4. Button
Pull Test- A Mock Patti is needed with about ten buttons attached to it.
Dimensional Stability is observed after washing.
Under appearance, visual
observations are made regarding any changes in the fabric after washing.
Defects like puckering, pilling, free movement of zipper.
Seam Slippage and Strength Test is done for all the seams
present in the garment.
The aim is to find if the finished product is identical to
the unfinished product.
Various buyers have their different requirements for GPT.
GPT is done after one wash or after three washes. Generally
for Indian domestic suppliers or US buyers, GPT is done after three washes. For
European buyers, GPT is done after one wash.
FPT- Fabric Package/Performance
Test
Under FPT, about 3 meters fabric is required, the following
tests are conducted:
1. Yarn
Count
2. Construction
3. GSM
4. Fiber
Composition
5. Tensile
Strength
6. Tear
Strength
7. Colorfastness
to washing at 40 deg.
8. Colorfastness
to rubbing.
9. Colorfastness
to perspiration.
10. Colorfastness
to Water.
11. Shrinkage.
Here is an FPT from a company.
Basically it contains the color properties and physical
properties of the fabric.
