Search results
Results from the WOW.Com Content Network
Devitrification in glass art [ edit ] Devitrification occurs in glass art during the firing process of fused glass whereby the surface of the glass develops a whitish scum, crazing , or wrinkles instead of a smooth glossy shine, as the molecules in the glass change their structure into that of crystalline solids.
Conservation-restoration is the practice of cleaning and discovering the original state of an object, investigating the proper treatments and applying those treatments to restore the object to its original state without permanently altering the object, and then preserving the object to prevent further deterioration for generations to come (Caple, p. 5-6). [1]
The principal methods of this are enamelled glass, essentially a technique for painting patterns or images, used for both glass vessels and on stained glass, and glass paint, typically in black, and silver stain, giving yellows to oranges on stained glass. All of these are fired in a kiln or furnace to fix them, and can be extremely durable ...
Pontil scar on the base of a free-blown glass bowl. A pontil mark or punt mark is the scar where the pontil, punty or punt was broken from a work of blown glass.The presence of such a scar indicates that a glass bottle or bowl was blown freehand, while the absence of a punt mark suggests either that the mark has been obliterated or that the work was mold-blown.
The millefiori technique involves the production of glass canes or rods, known as murrine, with multicolored patterns which are viewable only from the cut ends of the cane. [ 2 ] [ 9 ] A murrine rod is heated in a furnace and pulled until thin while still maintaining the cross section's design.
The classical reticello pattern is a small uniform mesh of white threads in clear glass, with a tiny air bubble in every mesh rectangle. To make an object in this pattern, the glassblower first uses white single-thread vetro a fili canes to blow a cylindrical cup shape, twisting as he forms it so the canes are in a spiral, and using care not to ...
Image credits: nflodin #6 My Shoes Crumbled Into Literal Powder On My Way To Work. Swipe through the pictures for reverse disintegration I guess. For context, these were relatively cheap off brand ...
To promote uniformity of practice in the evaluation of whiteness of surface colors, it is recommended that the formulæ for whiteness, W 2 or W 10, and for tint, T w,2 or T w,10, given below, be used for comparisons of the whiteness of samples evaluated for CIE standard illuminant D65. The application of the formulae is restricted to samples ...