Dongguan Changhong Technology Co. Ltd.   

        Dongguan Hong Technology Co., the company has successfully developed the following a variety of functional materials:
       , a temperature change of raw materials: the use of temperature differences to control the color change. Two, color photosensitive materials: the use of solar light (UV light) to control the color change. Three, luminous materials: store any light absorption, and the luminous in the dark. Four, liquid crystal photochromic materials: the use of temperature and angle of deviation of a rainbow color change. Five, long-lasting sense of incense material: the use of microcapsules to control the slow release of fragrance, flavor sustainable six months to one year. Six, the humidity sensing color: white water-based ink, water can become transparent.

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