Bone porcelain glaze color defects on 2

( 4) Bone China decals, strict and careful operation, according to the performance of the adhesive, coated paper flowers to stick paper good prevent leveling with air bubbles under the color paper. According to climate change, timely adjust the decal solution matching silk screen color paper bone porcelain decal solution of alcohol and water, and camphor oil during the spring and autumn and the proportion of duty summer is: the spring and autumn alcohol: water: camphor oil = 1. 8. 5-0. : 5 summer alcohol: water = 1:9:0 camphor oil. Alcohol: 1 winter water: camphor oil = 2:8:1 bone porcelain thick film color paper ( Flat printing film) Alcohol than quantity, according to the thin film color paper solution than quantity increased by 10%, the other must lose water and camphor oil with the same. Time shoulds not be too much paste, should according to the bone China products and the size of the room temperature of a batch of ( No more than 100) About 20 - will spend, leveling in time Turnover time 30 minutes. Such as room temperature high alcohol volatile, over time it will be difficult to cause air bubble, leveling paste liquid is unfavorable open storage, insist to add add less frequently, in case of alcohol volatile keep paste liquid clean without impurities. Bone China products have more than dust and paste liquid to wipe clean, in order to prevent the broken gold after gold, meng jin, pitting, or flower surface not light. ( 5) Keep the decal places of temperature and humidity, generally remain at 20 - at room temperature 25 ℃, relative humidity in the 60 - Between 70 ℃. ( 6) Bone China roast flowers, choose the appropriate color baking temperature curve, prevent moisture vaporizing sharply popcorn. Butyral film decal paper for the specific requirements of color baking system: slower temperature 500 ℃ before 500 & ndash; 700-700 ℃ warming faster 800 c uniform temperature to some heat preservation time, in the bone China products under the premise of not occur crack, rapid cooling as far as possible. 2, color is not straight meaning: bone China products color irregular is not smooth, color rendering FaMu or variation, bone China designs different thick, uneven thickness of edge is not bright, Yin and Yang. Color is not straight, produced in color paper plate making, printing, ceramic decals, custody, packing, such as full burning process. The reason: 1) Bone China hand painted decorative pattern design for operation is lax, blending colors are impurity contamination of water or oil. ( 2) Bone porcelain pigment and bone porcelain color paper itself quality is bad, in the same pattern in colour shade uneven phenomenon or applique glue containing impurities, or because of color paper storage time expired metamorphism of be affected with damp be affected with damp. ( 3) Because of the spray flowers or uneven colouring produced by hand. Decorated with colored glaze bone China products, due to the flow with burnt glaze bone porcelain glaze not divide evenly. ( 4) Packing density is too large, full furnace and kiln when bone porcelain products on color paper did not work, in the short time, low temperature heat, or up and down because of the color inside the oven temperature difference is too large, the lower bone porcelain products cooked in the oven or roast burning a long time the actual melt temperature is higher than roast burning temperature range limit, on the contrary baking time too short, the actual temperature is higher than the baking temperature range of the lower limit, the pigment of carbon compounds not evaporate. ( 5) Fuel sulfur content too much, bone porcelain paint change. To overcome the way: ( 1) Bone porcelain color paper in the process according to the performance of the raw materials from the paint formula, cooperate with the requirements in the same pattern of pigment is important to shade, thickness and uniform, according to standard process is equipped with all kinds of pigment printing. Storage period shoulds not be too long, keep bone porcelain color paper should be moistureproof prevent moisture to prevent deterioration, procurement, warehousing and bone China post florist should be the paper quality of bone China blatantly color paper are not allowed to be used. ( 2) Hand painted to strict and careful operation, condiment oil, pure water to clean, spray fill color should be uniform. Bone China adhesives used in the decal to purity. ( 3) Note with burning method, reasonable density uniform, earnestly implementing heating curves, roast temperature control to prevent old, up and down narrow stove temperature, lest cause bone porcelain products color, if the color axis decoration optimum XuanCheng porcelain temperature. ( 4) Choose the fuel with low sulfur content barbecuing bone China porcelain. — Tangshan bone China life of bowl to be continued. 。 。 。 。 。