What does skill of basin choose and buy have
One, glaze smoothness, brightness
When ceramic face basin of choose and buy, same as basin of stage of common white pottery and porcelain above all, must pay close attention to glaze finish, brightness. Good glaze smoothness and brightness are outstanding, color is pure, not easy to hang dirty scale, easy to clean, long-term use is still bright as new.
Can choose to be below more strong light when judging, observe from the flank of pottery and porcelain face basin much Angle, good glaze should do not have chromatic spot, pinhole, sand-hole and bubble, the surface is very smooth; Good reflectivity to light, uniform; You can also touch the surface with your hand, which is very smooth and delicate. Have connoisseur to suggest additionally, stroke the back of pottery and porcelain face basin, due "rustle" slight attrition feels. When choosing, the products of different brands can be put together for comparison and observation, so as to judge the quality of Taiwan basin quickly.
Ii. Water absorption index
The so-called water absorption rate is the index to judge the water absorption and permeability of ceramic products. It is understood that after water is sucked into ceramic, ceramic can produce certain expansion, ceramic face basin is also such, this makes the glaze of ceramic surface easy because suffer bilge and crack. It can be seen that the lower the water absorption, the better the quality of ceramic products. According to national bibulous rate relevant standard sets, bibulous rate is below the wholesome pottery and porcelain of 3% namely high-grade pottery and porcelain. Should pay more attention to the manufacturer's manual when the choose and buy, try to choose the product with low water absorption rate.
Technology, design and color
Most of high-grade hand-painted Taiwan basin all use glaze color ceramic technology, which is also the best ceramic technology at present, so pay attention to distinguish when the choose and buy ceramic basin, in case of illegal dealers with glaze color pretend to be glaze color, with the genuine. The adornment notices meticulous brushwork type freehand brushwork below glaze, must be manual draw, not be printing, decal, and color wants bright.
What need to remind is, hand-painted art stage basin, because its are made entirely by hand, differ from machine batch production, make gimmicky and style differ somewhat, the effect that same group of design appears is slightly different, should observe carefully when buying ceramic face basin. In the process of high temperature firing, the products are made by using color glaze kilns, and each product will have certain color difference, and there will be small cracks on the color glaze surface. This is the feature of color glaze handmade products for thousands of years, so the overall effect will not be affected.
