The collections in museums have a high historical documentary value and are important reference information for scholars studying the ancients, as well as an important reference for our understanding of history, so the conservation of the collections is a prudent decision. In order to facilitate the audience to be able to close understanding, the museum exhibition hall collections will be displayed in different showcase cabinets according to their importance. Therefore, the safety performance and glass permeability of museum showcases are extremely important to the collection.

Glass should be how to choose to both protect the collection, but also to increase the audience's visual viewing degree?

First of all, let's understand what kinds of glass used in the exhibition and display industry

1. Regular flat glass, the quality of its defects are mainly bubbles, stones and ribs. Air bubbles are latent cavities in the glass body, which are produced by inadvertent processing during the cooling stage of the manufacturing process. Lump commonly known as lumps, also known as sand, is a solid inclusions present in the glass, which is the most dangerous defect in the glass body, it not only destroys the appearance and optical homogeneity of the glass products, and will greatly reduce the mechanical strength and thermal stability of glass products, and even make the products break on their own. When it breaks, it presents a variety of irregular shapes, some even as sharp as a blade, which is extremely easy to cause injury to people.

2. Tempered glass, which is ordinary flat glass through reprocessing to a pre-stressed glass. Tempered glass has two main characteristics compared to ordinary flat glass.

(1) the strength of the former is several times the latter, tensile strength is more than three times the latter, impact resistance is more than five times the latter.

(2) tempered glass is not easy to break, even if broken will be broken in the form of particles without sharp angles, greatly reducing the harm to humans.

3. Laminated glass, generally composed of two pieces of regular flat glass (can also be tempered glass or other special glass) and the organic adhesive layer between the glass. When damaged, the fragments are still adhered to the adhesive layer, avoiding the splash of debris on human injury. It is mostly used in decoration projects with safety requirements.

Museum showcase glass needs to have the following characteristics:

1. Dimensional accuracy

Must have strict control in size, diagonal, and laminated stack difference, also requires fine edge polishing treatment. This can ensure good sealing, can effectively prevent the external environment of temperature and humidity caused by the erosion of the collection.

2. Non-reflective, high light transmission

Glass on its control focus on light transmission, reflectivity, and surface flatness, these are important factors that can directly affect the display effect is good enough.

3. Effective isolation of ultraviolet light

Paintings, calligraphy, antique books, embroidery and other precious collections, if a long time by ultraviolet radiation, will be yellowing, discoloration, brittle, cracking, until chalking damage.

4. Anti-smashing, anti-intrusion

Museum display showcase is the last barrier to protect the collection, display cabinet glass is the weakest link of security, from the security point of view, its structure design must have high hardness, anti-self-explosion, anti-intrusion and other functions.

Comprehensive above four requirements, the best choice of museum showcase glass is laminated glass, also called laminated glass. It is the two layers of glass using a kind of interlayer film will be bonded together technology, strong adhesion, so that even if the glass is broken, will also adhere to the interlayer, so that whether it is the showcase collection, or outside the showcase viewing people will not be affected.