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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-003
FTTS-FA-003 Electromagnetic Shielding Textiles

FTTS-FA-003 Electromagnetic Shielding Textiles

 

As everyone knows, many electronic devices such as cellular phones, computers and microwave ovens release electromagnetic waves. Based on the findings of studies and researches conducted by many domestic and international scholars and experts, it is very likely that electromagnetic wave harms human body but the problem is very easily neglected by most people.

Electromagnetic shielding textiles protect human body from such harm. They can be classified into three types:
1. Hybrid woven fabrics achieve electrical conductivity through twisting metallic fibers (which is thinner than human hair) with natural fibers or wrap natural fibers in metallic fibers to form electrically conductive composite yarns.
2. Conventional woven fabrics achieve electrical conductivity by undergoing finishing treatment processes such as electroless plating, sputtering and evaporation deposition. These processes fix electrically conductive metal particles on the surface of the fabrics to turn the fabrics into electrically conductive metallized fabrics.
3. Add conductive particles to polymers to form conductive filaments which are then spun into yarns and in turn woven into fabrics. The electromagnetic shielding effectiveness of such fabrics will not diminish even after many launderings.

Electromagnetic Shielding Textiles are usually graded into two classes – the Professional Use and the General Use. With current technology in Taiwan, general-use Electromagnetic Shielding Textiles can possess a shielding effectiveness (SE) up to a level of 30dB, while professional-use products can possess a shielding effectiveness from at least 30dB up to 50dB or higher.

Scop

This criterion is applicable to textiles in all forms, including woven, knitted, coated/laminated fabric and non-woven. To consider the durability, the pretreatment, ex: repeated laundering, weathering, may be required

Performance specification

3.1 The functional requirements in the test method are classified according to product end-use.

3.1.1 Class I--Professional use

for medical devices, safety uniform , shielding material for electronic component, assembly equipment and other application.

3.1.2 Class II--General use

for casual wear, uniforms (computer and telecom company), aprons, maternity dress,orprotective covers for consumer electronic products and other application.

(1) Class I - Professional use

Grading

Excellent

Very good

Good

Moderate

Fair

Range

SE>60 dB

60 dB≧SE>50 dB

50 dB≧SE>40 dB

40 dB≧SE>30 dB

30 dB≧SE>20 dB

(2) Class II - General use

Grading

Excellent

Very good

Good

Moderate

Fair

Range

SE>30 dB

30 dB≧SE>20 dB

20 dB≧SE>10 dB

10 dB≧SE>7 dB

7 dB≧SE>5 dB

Remark1:

SE: Shielding Effectiveness(dB)

ES: Percentage of Electromagnetic Shielding (%)

Remark 2:

Shielding Effectiveness (dB) can be calculated and converted into Shielding Effectiveness (%). Please refer to the Appendix Table for details.
1.2 General requirement for pretreatment

Item

Basic requirement

Test method

Washing durability

professional use:

mainly tested in original state

general use:,tested in original state, after 20 washes, 50 washes or by request
woven, coated/laminated fabric and non-woven fabric: washed based on AATCC 135 (1)IV(A)ii; knitted: washed based on AATCC 135(2)IV(A)ii.

 

Accelerated ageing

> Grade 4

ISO 105 B02

 

 







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