Textiles are usually exposed to light during use, which can destroy dyes and cause "fading", discoloring colored textiles, generally lighter and darker. Is there any way to simulate sun exposure? The answer is yes, that is to use a xenon lamp aging test chamber. The lightfastness of dyes used in the textile industry varies widely, and some method of determining their colorfastness is necessary. In addition, the dyed material will also affect the light fastness of the dye.
The test method of the xenon lamp aging test chamber for textiles is:
Expose the test cloth samples and a group of lightfast blue wool standard samples dyed with blue dyes of different color fastness grades at the same time and under the same conditions. When the cloth sample has faded sufficiently, compare the cloth sample with the blue wool standard sample. If the fading degree of the cloth sample is similar to that of the blue wool standard sample 4, then its light fastness is rated as 4.
The Q-sun
Xenon Aging Test Chamber measures the light resistance of materials by exposing them to ultraviolet (UV), visible and infrared light. It uses a filtered xenon arc lamp to produce the full sunlight spectrum with maximum matching to sunlight. A properly filtered xenon arc lamp is a way to test a product's sensitivity to longer wavelength UV and visible light in direct sunlight or sunlight through glass.
The xenon lamp emits light by using xenon gas discharge. There are: long arc xenon lamp, short arc xenon lamp, pulse xenon lamp and other varieties.
The radiation spectrum of the long-arc xenon lamp is close to that of sunlight, which is suitable for large-area lighting, and can also be used as a light source for film photography, color photoengraving, photocopying, etc. , photochemical reaction, etc., can also be used as simulated sunlight and artificial aging light source. In addition, high-power long-arc xenon lamps can also be used as continuous laser light sources.
Short arc xenon lamp, also known as spherical xenon lamp, is a point light source with extremely high brightness. The color temperature is about 6000K, and the light color is close to sunlight. It is the light source with the best color rendering among gas discharge lamps. It is suitable for movie projection , searchlights, locomotives, and simulated sunlight.
A pulsed xenon lamp is a xenon lamp that uses stored electrical or chemical energy to generate high-intensity flashes in a very short period of time. In the mid-19th century, F. Talbot first applied spark gap discharge as the exposure light source for high-speed photography, which was the earliest artificial pulsed light source.
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Textiles are usually exposed to light during use, which can destroy dyes and cause "fading", discoloring colored textiles, generally lighter and darker. Is there any way to simulate sun exposure? The answer is yes, that is to use a xenon lamp aging test chamber. The lightfastness of dyes used in the textile industry varies widely, and some method of determining their colorfastness is necessary. In addition, the dyed material will also affect the light fastness of the dye.
