Bone porcelain glaze defects under 6

6, waterway uneven meaning: design of bone China vine wrapped uneven thickness, bone China flower surface layout is unreasonable, so that it is black and white alternate with uneven. Especially bone porcelain picture and hoop, hoop line and ring line distance is uneven, classified image defects, produce a hoop, bone, bone China porcelain painting billet applique process causes: (, etc 1) Bone China flower surface design, the layout is unreasonable, two side or four side for design shall not adjust the stimulation caused by bone porcelain body arc and uneven defects ( 2) Full of unit grain and edge flower, when the brush figure didn't line component, such as impact layout is not reasonable and uniform as a whole. ( 3) Ceramic decal paper improper arrangement, the picture have different height, irregular band line distance. To overcome the way: ( 1) Image design: method should be adopted according to the shape of different decoration. Composed of unit 2 continuous edge design, should be uniform circular (by number of units Or a cylinder) Brush frame diagram, tapping leave room, full grain to take the black and white are available and son to adjust the size of the shadow of bone China designs demanding neatly. In painting line, the depth of the water must conform to the laws of nature, no matter in the same bone or bone China porcelain suite products require a consistent, unified specifications. ( 2) Bone China depicting the outline of the pattern, line requirement is even, the thickness is consistent, the order of the painting, painting first first, after added: center the main flowers first, after the development to both sides and around. For each flower heads and draw the center main lobe, lateral petals around again; First contour tracing petals are then elaborate hook reinforcement for points, one by one, outward development, long lines to stroke, avoid joint, two-tone seam. After the completion of the whole flower heads are main vine wrapped, draw foil Mosaic or shadow. The same shade, waterway uniformly. ( 3) Design of water, try to material color first, unified accurately. Water order small thick water, after the first bedding face fresh water, cent gives depth level, pay attention to the pen cannot reach the bone porcelain billet surface, prevent wash it hit a line feed line cause grain appearance is only a blur. 7, bone China flower meaning: also called blue wool, bone China flower fabric color fuzzy not clear, classified as defects. Produced in bone China porcelain painting billet and bone porcelain decal glazing process. The reason: 1) Bone porcelain body painting is too wet, make bone China porcelain material. Bone porcelain decal with water too much, too chung line drawing picture by water immersion time is too long after the blue material is water and spread out. ( 2) Bone porcelain glaze layer too thick. ( 3) Sintering temperature is too low, the bone porcelain glaze is not fully vitrified, decorative pattern is not easy to give. Overcome: targeted to overcome ( Refer to the chapter & other; Pigment mutant & throughout; ) Bone China decals when water shall not be poured, bone China is too wet painting flowers, appropriate to cover the glaze thickness. 8, Yin, yellow colour black meaning: color black. Classified as color is not straight. Produced in the bone porcelain glazing and firing process. The reason: 1) Bone porcelain glaze layer is too thin to produce owe glaze. ( 2) Product smoking, affect bone China blue color force. ( 3) Firing atmosphere is not straight, not fully restore, bone porcelain glaze billet of high iron did not affect color reduction Fe0. Overcome: targeted to overcome ( Refer to the chapter & other; Pigment mutant & throughout; ) — Tangshan bone porcelain factory house to be continued. 。 。 。 。 。