Process for producing flame reaction members for burners

A process for producing a flame reaction member for coloring a burner flame comprising the steps of:

• i) mixing a raw material mixture which has a glass composition containing a salt or an oxide of a flame reaction metal which produces color in a flame together with a liquid and, optionally, a binder, to form a viscous flame reaction material,
• ii) applying the said viscous flame reaction material to a substrate, and
• iii) heating the said viscous flame reaction material to a temperature which is not lower than a vitrification melting temperature of the flame reaction material to fusion bond the flame reaction material to the said substrate to produce a flame reaction member comprising a substrate having flame reaction material bonded to the substrate,
• wherein the said raw material mixture contains a compound which has a thermal decomposition temperature not higher than the vitrification melting temperature of the flame reaction material, and
• a rate of temperature increase in the vicinity of the thermal decomposition temperature is set to be low enough to avoid scattering of the flame reaction material in the step of heating the said viscous flame reaction material.

A process for producing a flame reaction member for coloring a burner flame comprising the steps of:

• i) mixing a raw material mixture which has a glass composition containing a salt of a flame reaction metal which produces color in a flame together with a liquid and, optionally, a binder to form a viscous flame reaction material,
• ii) applying the said viscous flame reaction material to a substrate, and
• iii) heating the said viscous flame reaction material to a temperature which is not lower than a vitrification melting temperature of the flame reaction material to fusion bond the flame reaction material to the said substrate to produce a flame reaction member comprising a substrate having flame reaction material bonded to the substrate,
• wherein compounds which are contained in the said raw material mixture have a thermal decomposition temperature not lower than the vitrification melting temperature of the flame reaction material and are mixed in a fused state in the flame reaction material when the flame reaction material is fused and vitrified.