PURPOSE: A japanning method of wood is provided to improve a japanning operation by refining and japanning in large quantities and to protect an operator from a harmful chemical component. CONSTITUTION: A japanning method of wood comprises the steps of refining raw japans for removing moisture contained in the raw japans by agitating a rod for 3-24 hours in a state of heating the raw japans in a given temperature, equally grinding a surface of wood in vertical, horizontal and rotation directions using a sand paper of 400-800#, painting a mixture of raw japans and a Turpentine in a ratio of 10 to 90 or 90 to 10 weight parts onto the ground surface in a certain thickness, manually applying the mixture onto an unpainted portion or a thinly painted portion over few times, glossing the applied surface using a dedicated cloth, and drying the painted portion using light of a fluorescent lamp for 3-48 hours in closed space, which light has a temperature of 15-35 deg.C, a humidity of 50-80% and an electric power of 10-50 W.
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机译： 用于啤酒的二次过滤的过滤材料及其生产方法技术领域本发明涉及一种用于包含硅藻土的啤酒的二次过滤的过滤材料及其制备方法，其中在与过滤的啤酒的流动相反的方向上，所述过滤材料为由第一层粗过滤硅藻土制成，其厚度大于2毫米，过滤面积的范围为0.66至1.05 kg / me2，第二层由混合物制成，厚度大于2毫米过滤面积为0.55至1.20 kg / me2的细过滤硅藻土和过滤面积为0.10至0.20 kg / me2的吸附材料，第三过滤层具有粗滤硅藻土和细滤硅藻土的重量比为10:90至30:70的混合物产生的厚度大于1.5mm。
