Question

In the KAWABATA method of evaluation of fabric hand, the low stress bending property is given by __________ module.

• A. $B_{1}$
• B. $B_{2}$
• C. KESFB3
• D. $B_{4}$

Hint:

KES-F parameters: B for Bending, S for Shear, T for Tensile, and C for Compression. The suffix 1 often denotes the primary rigidity or modulus of that category.

Answer 1

The Correct Option is A

Concept: The Kawabata Evaluation System for Fabrics (KES-F) is a sophisticated set of instruments used to measure the mechanical and surface properties of fabrics under low-stress conditions, simulating how a person feels the fabric with their hands.

Step 1: Instrument Modules.
The system consists of several modules:
• KES-FB1: Tensile and Shear
• KES-FB2: Bending
• KES-FB3: Compression
• KES-FB4: Surface Friction and Roughness

Step 2: Bending Parameters.
The bending property is specifically analyzed using the KES-FB2 module. The primary parameter derived from this test is denoted as $B$ (Bending Rigidity). In many standardized outputs and research contexts associated with the original Kawabata methodology, the specific bending rigidity parameter is identified as $B_1$. It represents the force required to bend the fabric, reflecting its "stiffness" or "suppleness."