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介绍用全废纸生产C级灰底涂布白纸板的生产流程和工艺技术条件。以废纸原料,经碎解、除渣、净化、筛选、打浆、施胶到浆料再经圆网纸机抄造成型,在抄造中,网部采用了氧化淀粉悬浮液喷雾技术,提高了网层结合力,提高了纸板强度。为了提高C级箱纸板产品档次,涂布部分采用了机内二次涂布工艺技术,以涂料代替了进口漂白硫酸盐木浆,使之达到纸面光泽、美观的效果,降低了生产成本。经测试产品各项质量指标都达到要求。
Describes the production process and technical conditions for producing C grade gray bottom coated white paperboard from waste paper. To waste paper raw materials, broken down, deslagging, purification, screening, beating, sizing to the slurry and then copied by the rotary screen machine forming, in the copy, the Department of the use of oxidized starch suspension spray technology to improve Net layer combination, improve the cardboard strength. In order to improve the grade of C-box paperboard products, the coating part adopts the secondary coating technology in the machine to replace the imported bleached kraft pulp with paint, so as to achieve the effect of paper luster and beautiful appearance and reduce the production cost. After testing the product quality indicators have reached the requirements.