我们试制成几种染料滤纸,效果尚好,今介绍如下,供同道参考. 染料滤纸的制备取中性干燥滤纸(或国产宣纸)剪成20×50 mm大小的纸片,疏松平放于玻璃皿或广口瓶中,每皿20——25片,注入某一种染色液.并用摄子翻转滤纸数次,使其完全着色,15分钟后,将滤纸取出置于温箱中(或暗室中)烘干.所制成的染料滤纸的染液应分布均匀,每100毫升染色液约可浸滤纸片400张,干燥之滤纸应用黑纸包裹或贮于黑色玻瓶中可长期保存. We try to make several kinds of dye filter paper, the effect is good, this is introduced below, for fellow reference.Preparation of dye filter paper Take neutral dry filter paper (or homemade rice paper) cut into 20 × 50 mm size of the paper, loose flat glass Dish or jar, 20--25 tablets per dish, into a staining solution. And use the camera turn the filter several times to make it completely colored, 15 minutes, remove the filter paper placed in the incubator (or darkroom In.) Dye filter paper made by the dye should be evenly distributed, about every 100 ml of staining solution can be leached paper 400, dry filter paper wrapped in black paper or stored in black glass bottle for long-term preservation.