Light-storage Self-luminescent Glass and the Process for Producing the Same

In the 1990s, two types of light-storage self-luminous materials were successively developed, namely aluminate system materials and silicate system materials. These two light-storing self-emitting materials are superior to conventional sulfide light-storage self-luminescent materials in terms of brightness, luminous time, and chemical stability.

Glass plays an important role in human’s daily life, and the combination of glass and luminescent materials relates to a new field.

 

In view of the shortcomings of the prior art, the present invention provides a light-storing self-luminous glass having a variety of luminescent colors and long afterglow times and can be simply manufactured from various luminescent powders, and the process for producing the same.

 

The object of the invention is to provide a light-storing self-emitting glass and the process for producing the same. After being exposed to sunlight or lamplight for 10 minutes, the glass according to the present invention can emit light for 10 minutes to 20 hours. The glass is reusable and non-toxic and non-radiating. In addition, the production process is simple, and the glass factory can produce the light-storing self-luminous glass without additional equipment. In the glass industry, satisfactory light-storing self-luminous glass can be produced according to this invention.

 

 

Light-storing self-luminous glass can be produced by the following four methods:

(1)   According to the formula of conventional silicate glass or ordinary sodium-calcium-silicon glass widely used in the glass industry, after the glass is melted, a light-storage self-luminous material is doped into the glass and the resultant is at 900-1300 ° C to produce light-storage self-luminescent glass, wherein the production temperature of the light-storage self-luminous glass is not limited, and the light-storing self-luminous material used may be one or more selected from the aforementioned light-storage self-luminescent materials.

(2)   The traditional silicate glass rod or tube is heated and melted by a glass blowing machine, doped with light-storage self-luminous material, and the resultant glass is secondarily formed, wherein the light-storage self-luminous material used may be one or more selected from the above-mentioned light-storage self-luminescent materials.

(3)   According to the above formulation of the low melting point glass, the low melting point glass is melted, cooled down and crushed to a certain fineness to obtain a glass powder. The resultant glass powder was sufficiently mixed with the light-storage self-emitting material to obtain a mixture. The obtained mixture is heat treated at 700-1100 ° C. to obtain a light-storing self-emitting glass, wherein the light-storage self-luminescent material used may be one or more selected from the aforementioned light-storage self-luminescent material 1or 3.

(4)   According to the formula of the conventional silicate glass or low melting glass, after the glass melting is completed, the light storage self-luminous material is doped into the glass metal contained in the crucible with stirring to obtain a mixture. The mixture is then subjected to a second clarification before formation, wherein the light-storage self-luminescent material used may be one or more selected from the aforementioned light-storage self-luminescent materials 1 or 3 described above.

 

Regarding the above four production processes, the forming steps may be machine making, moulding, pressing or hand forming. And the formed and deep-processed light-storing self-luminous glass article can be of any physical shape.