Matrices of multiple paper layers or of special card, are coated with a silicone emulsion in water contg. a swelling agent, esp. an alginate. The amt. of swelling agent in the emulsion is 0.3-3 wt. %. Pref. the mixt. contains 0.8-1.2 wt. % alginate, pref. 'Henkel 878' (RTM). Viscosity of the swelling agent is pref. 2000, esp. 5000. Proportions pref. are 300-5000 g silicone emulsion, 500-700 g dist. water and 6-12 g alginate. In an example, a coating or impregnating soln. consists of 400 g silicone emulsion, 600 g dist. water and 9 g alginate.
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机译:多层纸质或特殊卡片的材料在水中涂有机硅乳液。膨胀剂,特别是海藻酸盐。 AMT。乳液中溶胀剂的含量为0.3-3重量%。 %。首选混音。包含0.8-1.2 wt。藻酸盐百分比,优选。 “汉高878”(RTM)。溶胀剂的粘度是优选的。 2000,尤其是5000。是300-5000克有机硅乳液,距离500-700克。水和6-12克藻酸盐。在一个实例中,涂层或浸渍溶液。由400 g硅酮乳液,600 g dist。水和9克藻酸盐。
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