| 原文章发表时间:2010/12/3 |
| <标题>Cold Stamping Foil3 ------------------------------------------------------ |
| <内容> Cold Stamping Foil3 The cold foiling process, as the name stamping implies, involves foil blocking without the use of heat. Traditional molded case circuit breaker hot stamping foils require heat and pressure to transfer the foil from the carrier film to vacuum sealer the substrate being printed, whereas cold foiling does not.br br A hot marc jacobs handbags foil generally consists of a polyester carrier, or, more rarely, polypropylene or cellulose film, a release rcbo Herve Leger V Neck Bandage layer, a lacquered layer, the colour which determines the ugg sko norge shade of gold or coloured metallic effect, a layer of vacuum deposited ugg boots norge aluminium and finally a sized layer to give adhesion to the printed moncler online stock. A cold foil has basically the same structure, though cold foiling moncler norway usually requires a thinner aluminium layer, and the adhesive layer is not always necessary. The hot stamping foil is applied to the stock ugg australia by means of a heated die, set at a temperature of between around 100 ugg boots Celsius to over 200C, depending on the type of stamping press being used and the ugg prijzen area being blocked. The heat activates both the adhesive layer and the jassen moncler release layer, and allows transfer of the foil from the moncler jas heren carrier film according to the design of the die.br br A cold foil, on the other hand, requires no heat moncler heren jassen and adhesion is achieved by means of a completely different mechanism. In ugg fr cold foiling the design is not applied by means of a heated die, but is printed in prix des ugg the form a UV activated adhesive. Any printing technique can theoretically ugg fr be used in cold foiling, though offset litho and flexo are the most ugg pas cheres common. The run is started, the design applied using UV adhesive moncler sito ufficiale from printing plate or blanket, web and cold foil are brought together moncler prezzi through a nip then the sandwich passed under UV lamps which cure the adhesive. The cold foil and print webs are separated and rewound. Since the UV has to penetrated the aluminium moncler milano layer, this is thinner in cold foiling than with hot foiling. A cold moncler menuire foil must have an optical density low enough for it to sufficiently transparent to UV light to allow it to cure negozi moncler the adhesive in the short time available.br br So, in a nutshell, cold moncler a milano foiling involves printing an adhesive, nipping the cold foil giubbotto moncler sandwich to it, curing, then separation, leaving the foil adhered to the stock according the printed design of the adhesive.br br Traditional moncler bambino cold foiling is normally reel-to-reel and used in the self-adhesive labelling industry, but recent developments have allowed a viable charm bracelets sheet-fed process to be used.br br Whatever method is used, cold foiling has yet plus size dresses to give the Herve Leger Sweetheart Bandage high shine of traditional hot foil stamping. The nip, composed of a metal roller runescape money and a rubber impression roller, has to spotlessly clean or pinholes will be seen in the finished result. Cold foil is prone to pin-holing and other visual defects. |
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