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UV Preparations by Flockenhaus
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Searched and foundc 2007 caps and bases fabric and textiles pen light pipettes price uv lamp sewing thread short wave surface marker textile machine textile suits turn light switch x ray tech
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flockenhaus gmbh co kg an der waides 2 36037 fulda germany tel +49-661-72881 fax +49-661-74933 e-mail office@flockenhaus.de web www.flockenhaus.de uv-preparations and their application in the textile industry let us first consider some fundamental principles of light in order to generate light it is necessary to excite a luminescent body through application of energy for example when switching on a light switch current is allowed to flow through the filament of the electric bulb and the latter begins to illuminate to produce a yellow light some grains of common salt are thrown into the flame of a burner and the bluish-red flame immediately turns yellow the wavelength of light is measured in nanometres abbreviated to nm or in Ångstrom abbreviation Å 1 nm 10-4 cm 1 Å 10-8 cm the human eye perceives light in the range of 380 to 780 nm below 380 nm and above 780 nm light is invisible to the human eye and one differentiates accordingly above 780 nm infra red light and below 3
| textilan-uv-luminescent dyes filled with uv-textilan-ink resemble know felt tip pens before marking simply remove the cap and mark the desired position and that is the end of the job the ink is absorbed by the cloth i.e it adheres and is invisible obviously the fabric should not have been intensively treated beforehand with optical brightener since this itself illuminates under uv light after the marking operation the cap should be replaced on the pen to prevent the uvink from evaporating it is easy to refill the pens and in addition worn individual parts i.e the writing point and filter can also be replaced to refill the pen a small pipette is used and the pen itself holds about 2 to 3 ccm if the pen is overfilled there is danger that the pen will overflow or leak the uv-ink is built up on the basis of aromatic hydrocarbons it can naturally also be applied with a brush or with a spray gun uv-inks based on water-borne systems uv inks no 3633 and 4885 are based on water-borne systems
| uv-lamps it would be beyond the scope of the present paper to deal with each of the uv-lamps offered by the various manufacturers if can however be said from experience that for the purpose of a complaint examination at a customer a relatively cheap small handy lamp emitting long wave rays only is fully adequate such lamps have proved excellent in practice when purchasing such a lamp care should be taken that the instrument is small though efficient and can be easily packed in a briefcase on the other hand for works laboratories and for research purposes it is advisable to use a sturdy large instrument in this case the output and efficiency should be rated above purchase price uv lamp with battery uv lamp 220 volt uv lamp tech battery technical characteristics uv lamp with battery uv lamp 220 volt uv lamp tech battery 220v 50/60 hz 2 x 6 watt 325x80x125 mm 1600 g input voltage uv tube dimensionsweight something similar to felt tip pens 4 x aa batterien 4 watt 160x25x50 mm 100 g 220v 50
| typical examples of using uv preparations the various applications are numerous in many fields of industry in mineralogy in criminology marking of paper money etc as well as in the textile industry which is our particular concern it is customary for cloth defects to be marked with small ribbons or threads and the clothing manufacturers receive an allowance for faults marked in this manner in the form of fabric or money if the clothing manufacturer returns a complete suit or coat to a weaver with the complaint that the cloth contained a fault which was not marked it will normally be extremely difficult for the weaver to prove that this fault had indeed been marked with a marking ribbon or tread the necessary proof would however have remained if the defect had been marked with a uv-preparation since the mark would show up under uv light a very simple technique for the garment marker is to invisibly mark buttonhole positions with a source of uv light above the sewing machine the marking
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