Keywords: safety protection clothing textile anti-static Testing standards
1 Foreword
In the “Twelfth Five-Year†development plan of the printing and dyeing industry, it is pointed out that functional textiles will be the growth point in the international market. With the improvement of quality of life and progress of science and technology, consumer demand for textiles and clothing is not limited to fashion, textile functionality, comfort requirements are high, hope textiles and garments have the effect of special functions, such as antibacterial, antimicrobial, free ironing, heat, etc., and from anti-bacterial, anti-wrinkle finishing single-function, multi-functional development in order to improve the added value of the fabric can be carried out finishing. The textile for safety protection is also an important part of functional textiles. Among them, anti-static fabrics are also an important category of current protective clothing fabrics.
2 Anti-static textiles for safety protection
Security protection has become more and more important to the society. Security has become an important guarantee for safe production and rescue operations. Safety and protection textiles trend: focus on the development of a variety of fibers are preferably mixed technology, developing high-tech fiber fabric. Classification of protective clothing: general protective clothing, physical protective clothing, chemical protective clothing, anti-static clothing, high-voltage electrostatic protective clothing, and live working shielding clothing belong to the category of physical protective clothing.
3 Anti-static clothing and anti-static textile quality standards
3.1 Anti-static clothing quality standards
The original standard of anti- static clothing was: GB 12014-1989 "Anti-static Overalls"; the new standard was: GB 12014-2009 "Anti-static Clothing"
3.2 Anti-static clothing quality standard comparison
3.2.1 Physicochemical performance technical requirements comparison:
Table 1 The original standard GB12014-1989
Breaking strength/N
Thick material
Thin material
Radial
≥780
≥490
Zonal
≥390
Table 2 The new standard GB12014-1989 -2009
skills requirement
Formaldehyde content / (mg/kg)
Direct contact with skin ≤75
Non-direct contact with skin ≤300
pH value
4.0～9.O
Size change rate/%
+2. 5 to -2.5 (warp, weft)
Air permeability / (mm/s)
10 to 30 (coated fabric)
>30
Water fastness/level (discolored, stained)
≥3-4
Dry rub fastness/level (discolored, stained)
≥3-4
Light fastness/level (discolored, stained)
≥3-4
Breaking strength/N
Longitude ≥ 780 (mass per unit area ≥ 200g/m2) Longitude ≥ 490 (mass per unit area < 200g/m2)
Weft ≥390
Table 3 The original standard GB12014-1989
Class A
Class B
experiment method
Charged charge
< 0.6 μc/ piece
Test method according to Appendix A (Supplement) of this standard
Washing time
≥33. Oh
≥ 16. 5h
Wash according to the method specified in Appendix B (Supplement) to this standard
Anti-static clothing rating
grade
Point to point resistance
Clothing charge
A
105
Q≤0.2 μc
B
1057
0. 2μc
test environment
(20+5)°C, (35+5)%RH
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