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<p>[QUOTE="Iconodule, post: 11028894, member: 91417"]Ah, but I never have all the answers. If I thought I did, I would soon be proven wrong.</p><p><br /></p><p>As I understand it, transfers are applied to bisque/biscuit ware with clear glaze applied over the pattern and refired. (Decals are applied over glaze.) I found an interesting youtube video by Spode on transfer printing to porcelain: [MEDIA=youtube]9P7sIvxtLho[/MEDIA] .</p><p>It does not show the final glaze firing, but the color is printed onto paper from an engraved metal/copper plate (rather like printing an engraving or etching) and then transfered to the china plate. I think the color would be the chemicals or minerals in some kind of emulsion (oil), like cobalt to make blue. The final color only appears when fired.</p><p><br /></p><p>My mother did china painting on ceramic (earthenware) plates and tiles when I was a child. If I remember correctly, the earthenware was fired three times: greenware to bisque, then clear glazed, then china paint (overglaze) and a third firing to fix the overglaze design). When repeatedly washed in a dishwasher, the china painting will fade (probably gradually abrading).</p><p><br /></p><p>My error about the black circles--they looked black on my computer screen. When I enlarged the image, a series of different colored circles appeared around the patterned edge. What I thought was black now appears blue and brown plus some pale ochre circles became visible. They must be part of the pattern.[/QUOTE]</p><p><br /></p>
[QUOTE="Iconodule, post: 11028894, member: 91417"]Ah, but I never have all the answers. If I thought I did, I would soon be proven wrong. As I understand it, transfers are applied to bisque/biscuit ware with clear glaze applied over the pattern and refired. (Decals are applied over glaze.) I found an interesting youtube video by Spode on transfer printing to porcelain: [MEDIA=youtube]9P7sIvxtLho[/MEDIA] . It does not show the final glaze firing, but the color is printed onto paper from an engraved metal/copper plate (rather like printing an engraving or etching) and then transfered to the china plate. I think the color would be the chemicals or minerals in some kind of emulsion (oil), like cobalt to make blue. The final color only appears when fired. My mother did china painting on ceramic (earthenware) plates and tiles when I was a child. If I remember correctly, the earthenware was fired three times: greenware to bisque, then clear glazed, then china paint (overglaze) and a third firing to fix the overglaze design). When repeatedly washed in a dishwasher, the china painting will fade (probably gradually abrading). My error about the black circles--they looked black on my computer screen. When I enlarged the image, a series of different colored circles appeared around the patterned edge. What I thought was black now appears blue and brown plus some pale ochre circles became visible. They must be part of the pattern.[/QUOTE]
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