Microcapsules grafted on textile fibres

Microcapsules grafted on textile fibres
TECHNICAL DESCRIPTION
Notre référence :
85259-01
Status des brevets
French patent
application FR0205988
filed on May 5, 2002
entitled "Fibres textiles
greffées par des
capsules composites"
Inventeurs
The invention describes composite microcapsules chemically grafted on fibres to obtain
new intelligent textiles.
These capsules are obtained by interfacial polycondensation. They are grafted by
chemical bonds after having modified the membrane surface. The advantage is the
strength of the bonds that resist any constraints that the textile can undergo.
Grafting can be implemented on natural, artificial, synthesised, woven or non-woven
textile fibres.
If the microcapsules contain an active ingredient, the latter can trap certain molecules or
can be liberated at different speeds depending on the nature and size of the capsule.
INDUSTRIAL APPLICATIONS
The main advantage of this invention is the strength of the synthesised bonds. The
researchers have shown that the capsules attached to the textile can resist more than
twenty washings while in existing techniques capsules disappear after five washings.
Applications include: medicine (controlled release of medications in plasters and
dressings), textiles (temperature regulator, perfume, colour changes, protection against
toxic chemical agents), industrial textiles (chemically protective overalls, colour changing
textiles).
For further information, please contact us (Ref 85259-01)
Yves FRERE
Louis DANICHER
Stéphane BERGER
Status Commercial
Exclusive or nonexclusive licenses and
collaborative research
Laboratoires
Institut Charles Sadron
a CNRS laboratory
(UPR 22) in Strasbourg,
France.
Mots clés :
Microcapsules
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