The current status and development trend of reflective glass for museum display cases!

　The status quo and development trend of reflective glass of museum display cabinet! Showcase is the museum (to show the ruins, ancient buildings, and other immovable cultural relics, except) in the exhibition hall in the main exhibition equipment, showcase security, protection, display of cultural relics in the exhibition of the safety of the period, show the effect of the presentation of the decisive role, under the influence of this design concept, the museum showcases reflective glass transparent characteristics can be given full play to the showcase of the cabinet, the external surface becomes smaller and smaller, the glass occupies the main part of the skin of the cabinet, then the museum cabinet reflective glass will take up the responsibility of the cabinet security, protection, display, and other important functions.

The glass becomes the main material of the showcase

1, the classification of museum display case anti-reflection glass, museum display case anti-reflection glass with the rapid development of the Chinese museum business and continuous progress, at the same time in different historical periods are also greatly affected by processing technology, standards, and norms, cognitive concepts, After experiencing the different stages of single ordinary glass, single ultra-white glass, tempered glass, ordinary laminated glass, ultra-white laminated glass, museum display case anti-reflection glass, great progress has been made from all aspects of display performance, safety performance, protection performance, and at the same time, China has also emerged a professional museum display case anti-reflection glass brand.

2, the function of museum display case anti-reflection glass, cultural relics museum display case anti-reflection glass should be safe. Museum cultural relics because of their rarity, uniqueness, non-renewable and extremely precious, and any material and equipment in contact with cultural relics need to have strong safety performance, with the continuous improvement of the audience's requirements for the quality of the exhibition, the improvement of the effect of the museum display case anti-reflection glass exhibition has become the focus of attention of exhibition professionals.

Secondly, the anti-reflection glass of the museum display case, as the closest distance from the cultural relics and the close distance from the audience, is the last safety barrier of cultural relics in the exhibition hall, which needs to be paid special attention to, both to protect cultural relics and to ensure the safety of the audience. Anti-reflection glass of museum display case should have good protection. Museum display case anti-reflection glass should have a certain anti-intrusion ability, although the museum generally has multi-level security measures, if there are thieves into the exhibition hall, the museum display case anti-reflection glass must play a certain delay effect, after the alarm system alarm, leave time for security personnel to dispose of.

The museum display case anti-reflection glass is a brittle material, with a certain impact resistance, but there is still a risk of breakage, once broken, the glass body should not harm the cultural relics, and should not harm the audience, so a single piece of glass should be prohibited from being used in the museum. According to the survey, single glass has rarely been used in museums, but some old display cases in some museums or some small museums are still partially used, and should be replaced in time for cultural relic safety considerations, using museum display cases in anti-reflection glass.

Notice on strengthening the safety of cultural relics exhibitions

So, can tempered glass be used in cultural relics exhibition cases? Tempered safety glass can not be used in cultural relics exhibition cases. Because its self-explosion is unpredictable, undetectable, and other characteristics are known as glass "cancer", the repeated occurrence of tempered glass self-explosion caused cultural relic damage events in China, causing the attention of the industry authorities, in 2016, the State Administration of Cultural Heritage issued a special notice, the notice requires the museum to self-inspect the tempered glass used in the display case and gradually replace it. Although some museums around the country have applied for related projects, the progress is slow, and a large number of cultural relics are still facing the risk of damage caused by tempered glass self-explosion, especially in periods of seasonal change and temperature change, which is worrying! I am also angry at the numbness and irresponsibility of some museum staff!

Anti-reflection glass of museum display cases must have the barrier property of harmful light. Most of the museums in new buildings have adopted artificial lighting, such as the use of LED lighting systems when no harm because the LED lighting UV content is very low (some cultural experts began to pay attention to and study the short-wave blue light to cultural relics damage), some of the old museums is still using traditional light sources, which ultraviolet damage to cultural relics can not be underestimated; In addition, some museums that set up exhibition halls in ancient buildings often introduce natural light, but it is difficult to filter out the ultraviolet rays entering, and professional museum display cases anti-reflection glass will play a great protective role, which can block 99.5% of the ultraviolet band and form effective protection of cultural relics.

The museum display case anti-reflection glass will filter the ultraviolet, display performance is an important indicator to measure the merits of the display case, glass plays a major role, through the museum display case anti-reflection glass, the visual effect should be clear and transparent, while the cultural relic color reduction real, there should be no color bias phenomenon, the original ordinary glass as a museum display case anti-reflection glass used Because it contains more iron ions in its composition, the glass is yellow-green, that is, it affects the permeability of the glass, and there is serious color bias. Ultra-white glass is the removal of iron ions in the glass composition so that the iron ion content is reduced to about 100PPM, the glass shows a crystal clear effect, the color problem can be solved, and gradually becomes the main material of the museum display case anti-reflection glass after 2005.

Glass is a transparent material, and a large number of visible wavelengths can be passed through, but also some visible light is reflected, ordinary glass and ultra-white glass have reflectivity of about 8%, in different angles and different lighting environments, the reflection effect will be different. In the exhibition hall, a large number of display cases are densely placed, and the mapping between each other forms a noisy light pollution phenomenon. In addition, some museums do not carry out professional lighting design during the exhibition design and construction, or choose non-professional lighting fixtures, and other factors cause secondary glare on the glass surface, which seriously affects the visual experience of the audience and causes visual fatigue. It is one of the important factors of museum fatigue, and long-term exposure to this light environment will cause visual impairment in the audience.

Display cabinets reflect each other, forming glare, how to solve the glass reflection, and reduce the secondary reflection glare? Solving the glass reflection, and reducing the secondary reflection glare has become an important topic of the exhibition company, exhibition equipment, and glass material manufacturers! In the 21st century, the museum has introduced a small number of internationally advanced museum display case anti-reflection glass, although the display performance is excellent, because of its high price, the use of the museum is limited. At the same time, the extremely high requirements for processing technology of anti-reflection glass in museum display cases also make domestic glass enterprises discouraged.

However, some have tried first. When the Hebei Museum was renovated in 2013, it had innovative thinking and advanced consciousness. After detailed research, the museum decided to use a large number of museum display cases of anti-reflection glass. In fact, after years of technological research and development and accumulation, the processing technology of professional museum display case anti-reflection glass enterprises has reached the international level, the introduction of museum display case anti-reflection glass original pieces suitable for museum use from Europe, and the professional processing of museum display case anti-reflection glass from domestic enterprises.

The museum showcased reflective glass in the Hebei Museum after the application of desirable results, but also to make the Hebei Museum of other domestic museums before the transformation or new construction of the investigation target then opened the museum showcase reflective glass in the domestic museums use the curtain! At present, the Forbidden City, State Museum, Hebei Provincial Museum, Hunan Provincial Museum, Inner Mongolia Museum and more than 50 museums have been used, museum display cabinets reflective glass has become the standard of museums! Finally, with the continuous efforts of the museum-related industries, domestic and foreign technology exchanges continue to open, I believe there will be more advanced technology applied to the museum, the museum showcases reflective glass so that museum artifacts to get more thorough protection, but also so that the audience get a better experience of the exhibition!