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FTTS-FA-001 Antibacterial Textiles for General Use
FTTS-FA-002 Antibacterial Textiles for Medical Use
FTTS-FA-003 Electromagnetic Shielding Textiles
FTTS-FA-004 Moisture Transferring and Quick Drying Textiles
FTTS-FA-005 Water-Vapor Permeable and Liquid-Water Impermeable Textiles
FTTS-FA-006 Antifungal Textiles
FTTS-FA-007 Wrinkle Free Textiles
FTTS-FA-008 Ultraviolet Protective Textiles
FTTS-FA-009 Antistatic Textiles
FTTS-FA-010 Far Infrared Textiles
FTTS-FA-011 Water Repellent Textiles
FTTS-FA-012 Oil Repellent Textiles
FTTS-FA-013 Stain Release Textiles
FTTS-FA-015 Flame-Resistant Textiles
FTTS-FA-016 Charcoal Contained Filler Fiber Textiles for Warmth Retention
FTTS-FA-017 Deodorization for Charcoal Contained Filler Textiles
FTTS-FA-018 Deodorized Textiles
FTTS-FA-019 Cool Feeling Textiles
FTTS-FA-020 Liquid Moisture Management Properties of Textile Fabrics
FTTS-FA-023 Generating Heat-Textiles
FTTS-FA-027 Antibacterial Activity
FTTS-GA-024 Cycling Clothing
FTTS-GA-025 Jogging Clothing
FTTS-GA-026 Energy-saving Clothing
 
 
FTTS-FA-020
FTTS-FA-020 Liquid Moisture Management Properties of Textile Fabrics
  1. 1.      Purpose and Scope

This criterion is applicable for capacity assessment for wicking textile and apparel products, especially as evaluation criteria and test methods on conductivity and insulation of liquid moisture in double or multi-layered structure designed wicking textiles and apparel products, with conductive (or barrier) and absorption layers.

  1. 2.      Terminology

2.1   Wicking fabric: a fabric that can absorb sweat and rapidly transfer the moisture away from the skin, a function that maintains the skin surface dry and comfortable.

2.2   Wetting Time – Top/Bottom: time needed for the fabric to begin absorb liquid moisture, starting from the liquid touching the fabric’s surface. The definition of time from the fabric beginning to absorb liquid moisture indicates the time when a slope greater than or equal to tan15° appears for the first time on the water content versus time curve.

Note: according to the experiment definition, when test samples placed on the instruments, Top indicates the side that comes in contact with the top of the electrical current sensors; Bottom indicates the side that comes in contact with the bottom of the electrical current sensor. During actual wear or use, Top is the side that comes into contact with the skin, also called conductive layer, and Bottom is the outer front side, also called absorption layer.

2.3   Absorption Rate – Top/Bottom: rate of increase of water content in fabrics per unit time. It indicates the slope average on the moisture content change curve during test time.

2.4   Maximum Wetted Radius – Top/Bottom: maximum radius of moist area from the beginning of fabric wetting to the time of experiment termination. On the water content curve, it indicates the maximum radius of moist area from the time a slope greater than or equal to tan15° appears for the first time on the curve until the test termination time.

2.5   Spreading Speed – Top/Bottom: the cumulative conduction speed of liquid moisture along the radius from the time moisture begins to spread on the fabric’s surface until maximum moist radius.

2.6   Accumulative One-way Transport Capability: the capability of liquids to be transmitted from the fabric conductive layer (next to skin surface or inner layer) to the absorption layer (outside surface). It is expressed by the difference of liquid moisture absorption between both fabric sides and test time.

2.7   Overall Moisture Management Capability – OMMC: overall performance of the fabric’s wicking ability for liquids. It is expressed by weighted value of liquid moisture absorption rate of the fabric’s absorption layer, one-way transmission index and rate of diffusion of absorption layer.

 

The Committee for Conformity Assessment of Accreditation and Certification on Functional and Technical Textiles

Revise Date:

Publish Date:

This Standard is property of “Committee for Conformity Assessment on Accreditation and Certification of Functional and Technical Textiles”. Please remain the original meanings and contents when using and respect the intellectual property rights contented therein. The Standard may be amended through the issuance. Please use the current edition.

Liquid Moisture Management Properties of Textile Fabrics

Document No. FTTS-FA-020

Version: 1.0

 

  1. 3.      Classification

3.1  Grading standards for liquid moisture transfer properties in fabrics.

 

Table 1. The grading of liquid moisture transfer properties in fabrics

Grade

1

2

3

4

5

Wetting Time (sec)*

≧120

≧20

≧6

≧3

 

Absorption Rate (%/sec)*

≧0

≧10

≧30

≧50

≧100.0

Maximum Wetting Radius (mm)*

≧0

≧8

≧13

≧18

≧22.0

Spread Speed (mm/sec)*

≧0.0

≧1.0

≧2.0

≧3.0

≧4.0

One-way transmission index R (%)

 

≧-50

≧100

≧200

≧400

OMMC

 

≧0.20

≧0.40

≧0.60

≧0.80

*Note: both the fabric’s Top (next to skin surface during use) and Bottom (front surface during use) have respective classifications, and grading are required to be the same. Grade 5 has the best performance, while grade 1 has the worst.

 

 

 

  1. 4.      Testing Method (Summary)

4.1    Liquid Moisture Management Properties of Textile Fabrics:

Determine the liquid moisture conduction performance in accordance with the provisions of ATCC TM 195-2010,

 

(1)   Wetting Time – Top/Bottom (sec)

(2)   Absorp

 

 

 

tion Rate – Top/Bottom (%/sec)

(3)   Maximum Wetted Radius – Top/Bottom (mm)

(4)   Spreading Speed – Top/Bottom (mm/sec)

(5)   Accumulative One-way Transport Capability (%)

(6)   Overall Moisture Management Capability – OMMC

 

 







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