Textile products and nanotechnologies - Guidance on tests to simulate nanoparticle release - Skin exposure

The effects of synthetic nanoparticles on human health and the environment are still poorly understood and therefore uncertain. In particular, it is unclear in which areas nanoparticles-dose caused negative effects in the organism or in the environment (unknown dose-response relationship). The underlying toxicological mechanisms and possible effects of nanoparticle exposure over long periods of time are poorly understood.
In product advertisements on the Internet and in reports in international journals, especially the functional properties of "nanotextiles" are described. The type of integration of the nanoparticles in textiles is often described only sparsely. Therefore, the present document is based primarily on research studies that include information on the integration of the nanoparticles in the textile material.
The purpose of the present document is to give some guidance on tests to nanoparticle release. The determination of the release of nanoparticles could be performed either through quantification by chemical analysis (5.1), or by determining the linting (5.2), for example.

Leitlinien für Messverfahren für unterschiedliche Aufnahmewege für Nanopartikel - Hautaufnahme

Produits textiles et nanotechnologies - Orientation pour la réalisation d’essais de simulation de nanoparticules libérées - Exposition de la peau

Les effets des nanoparticules synthétiques sur la santé humaine et l’environnement restent mal connus et sont donc incertains. En particulier, les effets négatifs des doses de nanoparticules sur l’organisme ou l’environnement (relation dose-effet inconnue) ne sont pas clairement établis. Les mécanismes toxicologiques sous-jacents et les possibles effets de l’exposition aux nanoparticules sur de longues périodes sont mal compris.
Certaines publicités de produits sur Internet et plusieurs rapports de publications internationales décrivent notamment les propriétés fonctionnelles des « nanotextiles ». En général, très peu d’informations sont fournies sur la façon dont les nanoparticules ont été intégrées dans les textiles. Par conséquent, le présent document est essentiellement fondé sur des études de recherche livrant des informations sur l’intégration des nanoparticules dans le matériau textile.
Le présent document a pour objectif de fournir des orientations pour la réalisation d’essais de relargage de nanoparticules. Ce relargage de nanoparticules pourrait par exemple être déterminé par une analyse chimique de quantification (5.1) ou par un essai de peluchage (5.2).

Tekstilni izdelki in nanotehnologije - Napotki za preskuse simulacije sproščanja nanodelcev - Izpostavljenost kože

Učinki sintetičnih nanodelcev na zdravje človeka in okolje so še vedno slabo razumljeni in zato negotovi. Še posebej nejasno je, na katerih področjih je odmerek nanodelcev povzročil negativne učinke v organizmu ali okolju (neznano razmerje med odzivom in odmerkom). Osnovni toksikološki mehanizmi in možni učinki izpostavljenosti nanodelcem za daljša časovna obdobja so slabo razumljeni.
V oglasih za izdelke v internetu in v poročilih v mednarodnih revijah so opisane predvsem funkcionalne lastnosti »nanotkanin«. Vrsta integracije nanodelcev v
tkanine je pogosto opisana le pomanjkljivo. Ta dokument zato temelji v glavnem na raziskovalnih študijah, ki vključujejo informacije o integraciji nanodelcev v tekstilni material.
Namen dokumenta je podati nekaj napotkov za preskuse sproščanja nanodelcev. Ugotavljanje
sproščanja nanodelcev se lahko izvede na primer s kvantifikacijo s
kemijsko analizo (5.1) ali z ugotavljanjem puščanja vlaken (5.2).

General Information

Status
Published
Publication Date
02-Apr-2019
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
03-Apr-2019
Completion Date
03-Apr-2019

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SLOVENSKI STANDARD
SIST-TP CEN/TR 17222:2019
01-junij-2019
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QDQRGHOFHY,]SRVWDYOMHQRVWNRåH

Textile products and nanotechnologies - Guidance on tests to simulate nanoparticle

release - Skin exposure

Leitlinien für Messverfahren für unterschiedliche Aufnahmewege für Nanopartikel -

Hautaufnahme

Produits textiles et nanotechnologies - Guide d'essais de simulation de relargage de

nanoparticules - Exposition à la peau
Ta slovenski standard je istoveten z: CEN/TR 17222:2019
ICS:
07.120 Nanotehnologije Nanotechnologies
59.080.01 Tekstilije na splošno Textiles in general
SIST-TP CEN/TR 17222:2019 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CEN/TR 17222:2019
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SIST-TP CEN/TR 17222:2019
CEN/TR 17222
TECHNICAL REPORT
RAPPORT TECHNIQUE
April 2019
TECHNISCHER BERICHT
ICS 07.120; 59.080.01
English Version
Textile products and nanotechnologies - Guidance on tests
to simulate nanoparticle release - Skin exposure

Produits textiles et nanotechnologies - Guide d'essais Leitlinien für Messverfahren für unterschiedliche

de simulation de relargage de nanoparticules - Aufnahmewege für Nanopartikel - Hautaufnahme

Exposition à la peau

This Technical Report was approved by CEN on 22 March 2019. It has been drawn up by the Technical Committee CEN/TC 248.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 17222:2019 E

worldwide for CEN national Members.
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Contents Page

European foreword ....................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 4

2 Normative references .................................................................................................................................... 4

3 Terms and definitions ................................................................................................................................... 4

4 Nanoparticles in textile products .............................................................................................................. 6

4.1 Textile manufacturing process .................................................................................................................. 6

4.2 Application areas and products ................................................................................................................. 6

4.3 Are nanoparticles released from nanotextiles? ................................................................................... 9

4.4 Health impact ................................................................................................................................................... 9

5 Tests to simulate nanoparticle release ................................................................................................... 9

5.1 Release of nano-particles (Ag and TiO ) from textiles into artificial perspiration

solution under physical stress ................................................................................................................... 9

5.2 Release of nano-particles from textiles using linting method (mechanical action) ............ 10

5.2.1 General ............................................................................................................................................................. 10

5.2.2 Particle analysis ............................................................................................................................................ 10

Bibliography ................................................................................................................................................................. 14

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European foreword

This document (CEN/TR 17222:2019) has been prepared by Technical Committee CEN/TC 248

“Textiles and textile products”, the secretariat of which is held by BSI.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

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1 Scope

The effects of synthetic nanoparticles on human health and the environment are still poorly understood

and therefore uncertain. In particular, it is unclear in which areas nanoparticles-dose caused negative

effects in the organism or in the environment (unknown dose-response relationship). The underlying

toxicological mechanisms and possible effects of nanoparticle exposure over long periods of time are

poorly understood.

In product advertisements on the Internet and in reports in international journals, especially the

functional properties of “nanotextiles” are described. The type of integration of the nanoparticles in

textiles is often described only sparsely. Therefore, the present document is based primarily on

research studies that include information on the integration of the nanoparticles in the textile material.

The purpose of the present document is to give some guidance on tests to nanoparticle release. The

determination of the release of nanoparticles could be performed either through quantification by

chemical analysis (5.1), or by determining the linting (5.2), for example.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN ISO 105-C06, Textiles — Tests for colour fastness — Part C06: Colour fastness to domestic and

commercial laundering (ISO 105-C06)

EN ISO 105-E04, Textiles — Tests for colour fastness — Part E04: Colour fastness to perspiration

(ISO 105-E04)

EN ISO 9073-10, Textiles — Test methods for nonwovens — Part 10: Lint and other particles generation in

the dry state (ISO 9073-10)
CEN ISO/TS 80004-1:2015, Nanotechnologies — Vocabulary — Part 1: Core terms
(ISO/TS 80004-1:2015)

CEN ISO/TS 80004-2:2017, Nanotechnologies — Vocabulary — Part 2: Nano-objects (ISO/TS 80004-

2:2015)

ISO/TS 18110:2015, Nanotechnologies — Vocabularies for science, technology and innovation indicators

ISO 19430:2016, Particle size analysis — Particle tracking analysis (PTA) method
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO/TS 18110, ISO 19430,

CEN ISO/TS 80004-1:2015 or CEN ISO/TS 80004-2:2017and the following apply.
NOTE They are repeated here for context and better understanding.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
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3.1
nanoscale
size range from approximately 1 nm to 100 nm

Note 1 to entry: Properties that are not extrapolations from a larger size are predominantly exhibited in this

length range.
[SOURCE: CEN ISO/TS 80004-1:2015, 2.1]
3.2
nanoscience

study, discovery and understanding of matter where size- and structure-dependant properties and

phenomena manifest, predominantly in the nanoscale (3.1), distinct from those associated with

individual atoms or molecules or extrapolation from larger sizes of the same material

[SOURCE: ISO/TS 18110:2015, 2.12]
3.3
nanotechnology

application of scientific knowledge to manipulate and control matter predominantly in the nanoscale

(3.1) to make use of size- and structure-dependent properties and phenomena distinct from those

associated with individual atoms or molecules or extrapolation from larger sizes of the same material

[SOURCE: ISO/TS 18110:2015, 2.13]
3.4
nanomaterial

material with any external dimension in the nanoscale (3.1) or having internal structure or surface

structure in the nanoscale
[SOURCE: ISO 19430:2016, 3.13]

Note 1 to entry: In Commission Recommendation of 18 October 2011 on the definition of nanomaterial

(2011/696/EU), the term “nanomaterial’ means “a natural, incidental or manufactured material containing

particles, in an unbound state or as an aggregate or as an agglomerate and where, for 50 % or more of the

particles in the number size distribution, one or more external dimensions is in the size range 1 nm-100 nm”.

3.5
nano-object

discrete piece of material with one, two or three external dimensions in the nanoscale (3.1)

Note 1 to entry: The second and third external dimensions are orthogonal to the first dimension and to each

other.
[SOURCE: CEN ISO/TS 80004-1:2015, 2.2]
3.6
nanofibre

nano-object with two similar external dimensions in the nanoscale (3.1) and the third dimension

significantly larger

Note 1 to entry: The largest external dimension is not necessarily in the nanoscale.

Note 2 to entry: The terms nanofibril and nanofilament can also be used.
Note 3 to entry: See CEN ISO/TS 80004-2:2017, 4.4, Note 1.
[SOURCE: CEN ISO/TS 80004-2:2017, 4.5]
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3.7
nanoparticle

nano-object (3.5) with all external dimensions in the nanoscale (3.1) where the lengths of the longest

and the shortest axes of the nano-object do not differ significantly

Note 1 to entry: If the dimensions differ significantly (typically by more than 3 times), terms such as nanofibre

(3.6) or nanoplate (CEN ISO/TS 80004-2:2017, 4.6) may be preferred to the term nanoparticle.

[SOURCE: CEN ISO/TS 80004-2:2017, 4.4]
3.8
nanotextile
textile incorporating nanoparticles
4 Nanoparticles in textile products
4.1 Textile manufacturing process
Various nanotechnologies can be used to produce “nanotextiles”.
The nanoparticles are:
a) integrated into the fibres, or
b) applied on the fibre surface (e.g. as a finish, a coating).

The present document is intended to clarify nanotextile manufacturing processes and application areas.

4.2 Application areas and products

Nanotechnology in the development of new materials in the textile industry is used:

• to improve existing functionality, or
• to produce a textile material with entirely new properties.

Foremost among the applications currently feasible are, in particular dirt and/or water-repellent and

antibacterial textiles and, although they are as yet produced on a very small scale, textiles which give UV

radiation protection and so-called “cosmetotextiles” (e.g. ladies tights) with woven-in nano-capsules

containing special body care substances. Bullet-proof vests containing carbon nanotubes are also

currently available, as are heat isolating and moisture-absorbent textiles.

Table 1 gives an overview of nanomaterials in relation to the possible properties of the “nanotextiles”.

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Table 1 — Overview of nanomaterials in relation to the possible properties of the “nanotextiles”

Mechanical Mechanical strength X X X X X X X
Dimensional stability X X X
Rheological modification X X X X X
Impact strength, toughness and X X X X X X
stiffness
Low density, light weight X X
Scratch resistance X X X
Tenacity X X X
Smoothness X
Processing aid X X
Electrical Conductivity, antistatic X X
Thermal and optical Temperature resistance X X
UV resistance X X X X
Transparency and optical effects X X X X X
Colour improvements X X
Thermal conductivity X
Carbon nanotubes
Graphene
Nano titaniumdioxide
Nano zincoxide
Nanosilver, or other
nanometals
Nano aluminiumoxide
Nano ceriumoxide
Nano antimoniumtrioxide
Nano silica
Nanoclay
Nano calcium carbonate
Nanocellulose
Quantom dots
Dendrimers
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