Tactile Properties

• Bending Rigidity (B)
• Shear Stiffness (G)
• Surface Roughness (SMD)
• Harriness Index (io)
• Contact Points (nk)
• Transient Heat (qmax)
• Wet Cling Index (lk)

Transient Heat Conduction (qmax) May Forecast Wearer Comfort

Thermalphysiological Comfort

• Sweating Guarded Hot Plate
• Dynamic Sweating Hot Plate
• Liquid Moisture (GATS)
• Thermal Manikin (Coppelius)

Human Testing Protocols

• Hand Panels
• Controlled Wear Trials
• Actual Use Wear

 

------ Environmental Condition -----

Test Period	Time	Activity	Temperature Relative_Humidity)
	(minutes)		oC (oF)	(%)
0 (no rating)	15	Preconditioning	21 (70.0)	65
1	10	Rest	21 (70.0)	65
2	15	Aerobic exercise*	21 (70.0)	65
3	15	Rest	27 (80.6)	65
4	5	dexterity activity	27 (80.6)	65
5	10	cool down	21 (70.0)	65

*Designed to produce sweat: mild aerobic stepping exercise. Rate at end of each period.

SensoryDescriptor	PhysicalProperty
Snug	Fit
Heavy	Weight
Stiff	Bending
Sticky	Moisture
Nonabsorbent	Moisture
Clammy	Moisture
Damp	Moisture
Clingy	Moisture
Prickly	Surface
Nonstretchy	Tensile
Scratchy	Surface

 

Real Use Wear Trials

• Most Realistic Results
• Often Difficult to Recruit and Execute
• Often Requires Long Time to Execute

All-Day Screening Protocol

• Use Cross-Stretch, Size and Foot Size
• Developed Jointly with T-PACC/HTC
• Will Use CVCC Student Groups
• Will Use Validated Comfort Questionnaires
• Statistical Analysis by Extension/T-PACC

Hosiery Comfort and Fit Project

• Phase One
  • Prototype Study
    • Gather data on subject size
    • Gather data on hosiery size
    • Gather data on comfort and fit Perform statistical correlation
    • Provide Industry, Testing Laboratory, Retailers Information on Sizing and Comfort
• Phase Two
  • Perform detailed human sizing research (anthropometric database)
  • Perform measurement on test hosiery
  • Perform laboratory sizing/stretch measurements Perform wear trials for comfort and fit
  • Perform statistical analysis
  • Provide industry and retailers sizing/fit guidance

Guidance of Project

• Sizing/fit consortium will lead on hosiery style selection (men’s socks, pantyhose, body stockings, etc.)
• Committee will guide on sample variables selected (size, stretch, other sample characteristics)
• Committee will review protocols and goals at each step

Project Execution

• Will use state-of-the-art body size/shape information
• Will recruit test subjects from typical user populations
• Will perform well-validated laboratory tests
• Will perform validated human test protocols
• Will use best statistical techniques

Desired Technical Results of Project

• Develop good understanding of current state of comfort and fit of hosiery
• Establish correlation between laboratory tests and sizing with comfort and fit
• Provide industry, laboratories and retailers valuable guidance on sizing and stretch
• Provide good database on population size and shape

Goals of Project

• To Create Improved Understanding of Hosiery Sizing and Fit
• To Provide Industry with Information to Give Guidance on Quality of Product
• To Provide Laboratories and Retailers an Understanding of Needed
• Size/Stretch for Meeting Customer Needs
• Reducing Off-quality and Returns

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