What is GPT and FPT in Textile Testing?

In garment and textile testing, GPT stands for Garment Package Test and FPT stands for Fabric Package Test.

Each buyer sets guidelines for what all tests are mandatory at fabric stage and subsequent in garment stage. Buyers send this package tests list to their nominated testing labs. Prior to bulk production buyers asked for FPT and GPT test report from their vendors for production approval. Garment manufacturer then sends the sample (fabric or garment) to the testing labs for FPT and GPT.

Once garment manufacturer mentioned for FPT or GPT, testing lab performs all tests according to the buyer test manual. In this package test, garment manufacturers do not need to specify any test to the testing lab.

Pricing of FPT and GPT is done based on the tests to be performed as per buyer requirement.

Crock meter/Rubbing fastness tester
Image source: www.sdlatlas.com

In fabric stage, most of the tests (physical properties) are covered. If all requested test results don’t meet or exceed the buyer specified requirement then the fabric is not approved for further process.

In such case, fabric is sent for re-processing. The fabric is reprocessed to improve those properties in which fabric is not able to meet test standards. And the fabric is resubmitted for testing.

For an example, buyer ST. JOHN's GPT test list includes tests like

  • Dimensional stability in Laundering 3 cycles or Dry cleaning 1 cycle
  • Appearance after Laundering 3 cycles or Dry cleaning 1 cycle 
  • Color fastness to Laundering or Dry cleaning 
  • Seam strength 
  • Tension test on components 

Very few tests are done under GPT. As most of the performance tests are covered in FPT. Test requirement may vary based on fabric types, trims used, and fiber content etc.




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Online Clothing Study: What is GPT and FPT in Textile Testing?
What is GPT and FPT in Textile Testing?
Define the GPT and FPT in textile material testing and garment testing. Full form of GPT and FPT.
Online Clothing Study
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