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[化学分析] Restriction on Nonylphenol & NPEOs in Textiles

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发表于 2009-3-6 14:13:00 | 显示全部楼层 |阅读模式
1.What are they used for? 相關用途
6 f6 H& Y- W1 ~8 i) n) ]% A  c
0 F: K. o; O) T7 B. Z* r  yAlkylphenols (APs) and alkylphenol ethoxylates (APEOs) are auxiliary chemicals used in different industries. They " ^0 c; I( u: S
are good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems 4 t" ^6 r& ~; C! v0 ?2 J( O1 U' o
such as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are 5 Z, C* f3 q! v# U6 |
also used as domestic cleaning agents and co-formulants in pesticides and biocides.
: R" f. R( X$ J7 Y5 i5 dIn particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent
+ o  L7 s; p$ r1 ?5 O# Gauxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in 9 p/ E. d( ^5 h' P9 ^4 I; u
textile wet processing.
* ~9 h$ J7 T  n" }# w3 S( q  l烷基酚(APs)和烷基酚乙氧基化物(APEOs)在不同工業中常用作輔助化學 8 x) L$ P6 P( M0 x' d. Y
劑。它們是良好的乳化劑和潤濕劑,因此它們被廣泛地用於不同的工業洗滌過程 . U& B8 ?% z, X, [1 R! Y
中,如紡織和皮革加工、紙漿和造紙加工、金工和農業等。它們亦會用於家庭洗
2 n% w! i/ o1 ]1 j2 n滌劑中,以及殺蟲劑和除生物劑的處方。
5 f* z( n$ P( A. s2 @( C, H在紡織品的濕處理過程中,壬基酚(NP)和壬基酚乙氧基化物(NPEOs)(分別
4 r+ u$ t; p2 B# I; }0 Y& ~屬於烷基酚(APs)族和烷基酚乙氧基化物(APEOs)族),主要被用作洗滌劑
  }% _5 N+ A6 }5 }7 V6 C的助劑,在纖維的清洗及漂白過程中,用以去除如蠟、籽屑等雜物。 9 t0 R9 t8 y- B5 _

6 h; L, V! [/ b! W: _) ?. r2.What are the problems? 相關問題 # }/ i5 n8 U; I' C8 M

( e# [1 p0 ?7 c  t( [0 r4 {Since APs and APEOs are non-biodegradable, they cause severe environmental problems when they are released
" m# v: ]. v. }# J# {% Gto the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment 8 ^6 v( g% l9 J5 b* `/ _
and can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced
* Z+ m4 O3 s6 D! H& _and populations are in danger of shrinking. . d: ~8 U9 V! q8 E/ Z/ U9 ^
由於烷基酚(APs)和烷基酚乙氧基化物(APEOs)是不能被生物降解的,因此,當它們被排放或釋放到環境   q# H5 R& W. D7 ]( E, Y
中時,便會引發嚴重的環境問題。對水質生態來說,他們是烈性的內分泌破壞者,能導致雄魚雌性化。結果是
( V. X3 _0 o& j: r* x8 {7 ?- V4 v魚的生產力或繁殖率下降,從而使魚的種群有減少的危機。 3 y  y2 }5 d& e) r5 u& G
. q. C: B8 f' K2 {# }& [
3.What are the measures? 相關措施
1 ^+ M! D. S% N2 r. v, S& Q) H1 f& D: e
Within the Directive 2003/53/EC published on 18 June 2003, it was added to the Directive 76/769/EEC
0 L3 x, U4 r, qrestrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as 5 u4 W  `* x' v4 B' g4 ]& a
below:
1 Q4 C( N5 }( V3 V  r7 aBy 17 January 2005, except for pesticides or biocides which have been granted by existing national
- y) U- i* W# F$ }9 [, q4 g7 F4 zauthorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in
; ?- C0 ^# ]3 |! w& {concentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes: 3 Y: Y* M6 h! S+ z4 b0 ~# \2 S6 c
• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated;
# e2 L: K! }1 x! s, Q• domestic cleaning;
( @- S( U7 c( [. s# P• textiles and leather processing except those without release into waste water or those with special treatments 2 [- L9 v: }' k, G8 g2 g# u% z
to remove the organic fraction completely prior to the release;
* g: h1 [" R2 Q7 A9 |, L0 v• emulsifier in agricultural teat dips;
0 a  M4 _$ e; W0 f. C7 ~) N6 h& h• metal working except those systems where the washing liquid isrecycled or incinerated;
/ @8 u. R6 i6 Y• manufacturing of pulp and paper; ' p! r2 U& b" q0 l
• cosmetic products;
. j8 d3 [: r1 V2 N7 K• other personal care products except spermicides; * k8 q/ h' r7 ]: {* H/ f9 J
• co-formulants in pesticides and biocides.
* @% _) K+ K3 y( z$ h2003年6月18日發佈的2003/53/EC指令已經加進76/769/EEC指令中,該指令限制銷售和使用壬基酚
* y/ J$ `  y$ R( P( }(NP)和壬基酚乙氧基化物(NPEOs),概述如下:
7 ]! ~& o5 O7 J4 S3 u0 @從2005 年1 月17 日起,除了已被國家授權准予使用NPEOs 作為處方的殺蟲劑和除生物劑外,用於下列目的壬 # V. C; O1 C6 S3 r0 u: K( T+ B
基酚(NP )和壬基酚乙氧基化物(NPEOs )的質量比濃度不可等於或高於0.1% (相當於1,000ppm ): + |, W) k5 T! m/ e! D2 I: x
• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外; - F$ Z! k- W+ V2 \& `6 |( T* h# G: o
• 家庭清潔;
4 {$ K$ q! C( [+ V$ O! z  i) _• 紡織品和皮革加工,不排放到廢水或在排放前經過特殊處理而完全除去了有機物的除外;
7 \3 K# A/ T, t- r. S7 k$ A• 農用乳頭消毒液的乳化劑; # H' K$ o% h0 e4 o. {
• 金工, 備有洗滌液再循環或焚化的系統除外;
' G$ m  I/ A, y- l9 F, s; t7 O• 紙漿和造紙加工; " Y& y2 ]- ~  m" v
• 化妝品; $ [+ S" p: Z/ u3 H4 K; A
• 其他個人護理用品,殺精劑除外;
3 I. z5 w0 W7 M& @" V$ }9 O" E• 殺蟲劑和除生物劑的處方。
$ ~1 h6 b3 C' `) s/ ?% x+ \来源:STC 李昊鹏
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