Abstract:
Die Erfindung betrifft eine Cellulosefaser der Gattung Lyocell, welche mit einem Vernetzungsmittel behandelt ist, wobei das Vernetzungsmittel auf der Faser einen Fibrillationsschutz induziert und folgende Eigenschaften aufweist: - der durch das Vernetzungsmittel induzierte Fibrillationsschutz verändert sich bei Lagerung der Faser innerhalb eines pH-Bereiches von 4,0 bis 10,0, insbesondere unter Einwirkung von Feuchtigkeit und/oder Wärme - innerhalb des pH-Bereichs von 4,0 bis 10,0 existiert ein optimaler Wert, an welchem die Stabilität des durch das Vernetzungsmittel induzierten Fibrillationsschutzes bei Lagerung am größten ist - um den optimalen Wert herum existiert ein geeigneter Bereich, in welchem die Stabilität gegenüber der Stabilität beim optimalen Wert um maximal 20 % verringert ist - der geeignete Bereich wird innerhalb des pH-Bereiches von 4,0 bis 10,0 durch zumindest einen Grenzwert begrenzt, an welchem die Stabilität gegenüber der Langzeitstabilität beim optimalen Wert um 20 % verringert ist und unterhalb bzw. oberhalb desselben eine weitere Verringerung der Stabilität eintritt - das Vernetzungsmittel hat ein den pH-Wert- veränderndes Potenzial, Die erfindungsgemäße Faser ist dadurch gekennzeichnet, dass die Faser eine im geeigneten Bereich puffernde Substanz enthält und im geeigneten Bereich eine Pufferkapazität von mindestens 12 mmol/kg Faser, bevorzugt 15 bis 70 mmol/kg Faser aufweist.
Abstract:
The present invention relates to flame-retardant Lyocell fibers which include incorporated inorganic additives which are particularly suited for use in flame barriers for articles of manufacture, such as mattresses and upholstered furniture applications.
Abstract:
Methods for coating a substrate are disclosed, the methods comprising providing a substrate, providing pre-formed nanoparticles of an inorganic material, providing at least one precursor of a first metal oxide, and depositing a coating on at least one surface of the substrate by contacting the surface with the precursor of the metal oxide and pre-formed nanoparticles. Also disclosed are substrates coated using such a method. The coated substrates are coloured. Preferably the metal oxide is a doped metal oxide to modify the thermal properties of the coating. The preferred nanoparticles are of platinum group metals or coinage metals.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung einer cellulosischen Faser, insbesondere einer Lyocell-Faser, die aufgrund ihres verbesserten Öffnungsverhaltens besonders gut zur Mischung mit Federn, insbesondere mit Daunen geeignet ist, eine solche Füllfaser sowie die Verwendung dieser Füllfaser in Mischungen für Bettwaren und Bekleidung.
Abstract:
The present invention provides a hand-held device (10) for providing a flow of plasma for treatment of a treatment region. The device comprises a plasma cell (16) defining a volume in which gas passing through a cell inlet from a gas source (22) can be energised to form a plasma and discharged through a cell outlet for treatment of a treatment region by said generated plasma, and a plurality of electrodes for receiving electrical power for energising gas in the cell to form a plasma, wherein the device comprises a valve arrangement (32) operable in an open condition to allow the discharge of plasma from the device to the treatment region and in a closed condition to resist the passage of ambient contaminants into the device in the absence of gas flow through the device from the gas source.
Abstract:
The present invention relates to UV protective fabrics, whereupon these fabrics are made of UV protective cellulosic fibres, namely manufactured by the Modal or the Lyocell process. Besides the permanent and inherent protection against UV rays of the named fibre materials and thus fabrics, UV protection is still guaranteed, when the fabrics are wet and stretched. As a result of fibre swelling, the fabric construction becomes denser and as a direct result, UV transmission is significantly reduced compared to the dry and stretched state.
Abstract:
The invention provides a composition comprising nanoparticles, which nanoparticles comprise Allicin and an inorganic carrier. Further provided is a process for producing the composition of the invention, the process comprising treating precursor nanoparticles, comprising said inorganic carrier, with Allicin. The composition of the invention may be used as an antimicrobial agent or for treating a bacterial infection, a fungal infection, a viral infection, an infection by a pathogenic protozoan, a tumour, cancer or thrombosis, or to stimulate or enhance the immune system. The invention further provides antimicrobial films, coatings, coated products, packaging materials, and polymer compositions, all of which comprise said nanoparticles, and processes for producing the films, coatings and coated products.
Abstract:
The present disclosure relates to a method and processing facility for producing regenerated cellulosic fibers. The method comprises extruding a spinning solution into a coagulation bath which contains a salt and preferably an alkali to produce the fibers. The spinning solution comprising cellulose dissolved in an aqueous solvent comprising NaOH and ZnO. The coagulation bath has a pH-value of at least seven. The method further comprises a continuous process of applying to the fibers in a never-dried state a crosslinking agent with two or more reactive groups and heating the fibers to a curing temperature while maintaining the never-dried condition to produce a reaction between the crosslinking agent and the cellulose of the fiber.