Wednesday, May 23, 2012

The same way plastic injection emerald cuff links

It must be injected into the second session a polymer, and sometimes only wax, but most copies are injected into the resin, replacing the removed material. To fill the pores and the consolidation of loose emerald cufflinks, some technicians will be injected with dye and polymer (Ng 1990), after the completion of the infusion remove residual polymer. For example, the mens cufflinks made by the rare and colorful shell pearls inlaid with precious jewels. The determination of bleaching gel injection gem emerald cufflinks nature, its refractive index, spectral (hand-held spectrometer) two persons with untreated no significant difference, and in the proportion of ultraviolet fluorescence reaction, reaction hot needle, hot needle response and high power test amplification characteristics (appearance) and have significant differences, can be bleached.
According to test injection plastic products, used in jewelry appraisal has recently developed a new infrared spectrometer instrument, the price is expensive and needs high technology, but the most accurate, hereby are as follows: a small drop of pure hydrochloric acid in the emerald cuff has not been observed a few minutes (about 1-20 minutes), there will be many (small round beads of sweat) at around the droplet. The cuff links was embedded in colorless crystal, mother of the pearl, ruby, cordierite (a purple-blue gem, also known as water sapphire) and Garnet. This response is the crystallization of emerald cufflinks with small cracks and sub-particle pores and capillary effect. When tested in the same way plastic injection emerald cuff links, when bleached, due to the compound filled with children without such pores (small round beads of sweat) phenomenon.
Note that in the dry hot places, especially in air-conditioned room for such tests, due to hydrochloric acid will evaporate before you see the reaction, it must continue to drop hydrochloric acid. Microscope with reflected light, can be observed in the cracks reach the surface of the filler. Poor low-grade glossy jade jade pieces may also be found on the white spots; for processing negligence; the polished surface of the sample, the filler can sometimes see bubbles or cotton wool fibers, material gathered in the transparent plastic polymer compound, even in the sculpture can be shallow, hollow, pit, etc. see the rubber residue. The cufflinks were made with mother of pearl and ruby as the center and the lapis lazuli for the trim.  UV fluorescence reaction. Most natural untreated emerald cufflinks did not respond to UV radiation. In the long-wave ultraviolet light, some are on display at the white light to moderate yellow, short-wave ultraviolet light is weakly or no response. The green part is no response.
The bleaching gel injection on emerald cufflinks are ultraviolet fluorescence response. In the short-wave ultraviolet light was dull or no response. In the long-wave ultraviolet light through the display of blue and white fluorescent light Xeon, sometimes more obvious in the white areas, which generally comes from the infusion of fluorescent plastic material. Anthony Hopenhajm, president of Seaman Schepps said that the mens cufflinks can convey a strong emotion. Thus, in the long-wave ultraviolet light was outside the blue and white to yellow-green fluorescence, provides a bleach dispensing useful indicator of emerald cufflinks. However, this test must be conducted in a dark room, such as the Department is unable to see in bright fluorescence, and the gem of the fluorescent reactions for reference, other methods must be combined to determine.
Emerald cufflinks of quality and level of identification, ancient Ming Xun Liu Zi Jue: color, transparent, uniform, shape, knock, photos, as cufflinks the industry still talking about the motto, which "knock" in the identification of B goods more can come in handy. Jade bracelet with a large cargo of coins gently tapping, if offers for higher quality natural untreated were issued a clear crisp sound, while the B stock is issued a gloomy, dull tone. The theory is that within the structure of emerald cufflinks or broken rubber block sound waves, without dealing with those acoustic vibrations unimpeded. Since the invention of cufflinks, it has become a window to peep the inner feelings of a man.

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