Woven and Knitted Fabric Structural Construction Specifications
Fabric specifications mandate exact finished thread densities, stitch lengths, and test conditions to enforce supplier compliance and control landed costs.
ISO 5084
Thickness Standard
An international testing protocol defines the method for measuring the thickness of textiles and textile products under a specified pressure. This standard, designated as iso 5084, applies to all woven, knitted, and non-woven fabrics but excludes floor coverings and geotextiles. It does not apply to materials that are highly compressible or elastic.
Measurement Mechanism
The testing is carried out by placing a fabric specimen on a flat reference plate and applying a circular presser foot under a known pressure for a specified duration. The distance between the reference plate and the presser foot is measured to within zero point zero one millimeters. Different fabric types require different pressures, with normal apparel fabrics tested under a pressure of zero point one kilopascals, while bulkier materials may use different settings.
This measurement is repeated across several areas of the fabric to calculate an average thickness.
Fabric Characterization
Mill engineers use these thickness values to evaluate the thermal insulation and breathability of activewear and winter garments. Consistency in fabric thickness is also critical for calculating the yield and consumption of fabric during the cutting phase in garment factories. This standard ensures that fabric thickness matches the design specifications.
Standard Boundary
The test is not applicable to fabrics with thick raised piles or deep surface patterns. These irregular surfaces require alternative measurement methods that do not rely on a flat presser foot.