Method for objective handle evaluation respectively different mechanical / technological

propertes of fabrics, knitted fabrics or filmsApplications

Investigation of finishing effects Prediction of processability and wear properties Influence of raw material, yarn or fabric construction

The original KES-F consists of four components, which allow the measurement of properties of planes (fabrics, knitted fabrics, or films) and partially of yarns, too. There is also a newer apparatus-combination for the evaluation of thermal properties. In detail the following 20 parameters can be measured:

KES-F-1: Tensile Properties(in warp / weft)EMT

tensile energy

%

WT

tensile resilience

J/m2

RT

tensile resilience

%

LT

linearity of load extension curve

/

Shear Properties (in warp / weft)

Gshear rigidity

N/m*rad

2HG

hysteresis of shear force at 0,5o

N/m

2HG5

hysteresis of shear force at 5o

N/m

KES-F-4: Surface Properties(in warp / weft)MIU

coefficient of friction

/

MMD

mean deviation of MIU

/

Profile (warp / weft)S geometr ¥ìm

MD

ical roughness

KES-F-2: Bending Properties(in warp / weft)

Bbending rigidity

¥ìN*m

2HB

hysteresis of bend. moment

mN*m/m

KES-F-3: Lateral Compression PropertiesEMC

compressibility

%

WC

compressional energy

J/m2

RC

compressional resilience

%

LC

linearity of compr. thickness curve

/

T0

fabric thickness at 0,5 cN/cm2

mm

KES-F-7: Thermal Propertiesqmax

max heat conduction

W/cm2

kthermal conductivity

W/cmK

WV

heat dissipation

%

From this, eight primary and one overall handle grades are calculated.Although all tests are carried out with only two samples of 20 cm x 20 cm with four measurements in each thread system, a complete investigation is very time consuming and requires great experience of the examiner, but offers a lot of information.