Research on application performance of titanium dioxide in ink
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摘要: 对二氧化钛在油墨中的应用性能进行了研究,通过对二氧化钛粗品进行不同条件的研磨分散、无机包覆处理,并进行颜料性能及油墨应用性能研究测试,总结归纳出适宜油墨应用的高遮盖力二氧化钛制备方案。其最佳工艺为:在浆料浓度为500 g/L条件下,研磨分散40 min,并进行氧化硅和氧化铝无机包覆,得到样品的二氧化钛含量达90.23%,L值为95.61,b值为1.82,油墨中的遮盖力达到最大值,具备最佳的油墨应用效果。Abstract: In this paper, the application performance of titanium dioxide in ink was studied. Through the process of grinding, dispersing and inorganic coating of titanium dioxide crude products under different conditions, the study of pigment performance and application performance of ink was carried out, the preparation method of high hiding power titanium dioxide suitable for ink application was also summarized. The optimum technological conditions were obtained as follows: when the slurry concentration is 500 g/L, 40 min is ground and dispersed, and SiO2-Al2O3 inorganic coating is carried out. The titanium dioxide content of the sample is 90.23%, L value is 95.61, b value is 1.82, the hiding power in the ink reaches the maximum, and has the best ink application effect.
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Key words:
- titanium dioxide /
- ink /
- hiding power /
- grinding /
- dispersing /
- inorganic coating
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表 1 试验参考设备清单
Table 1. Experimental reference equipment list
设备名称 规格型号 生产厂家 实验室pH计 梅特勒-托利多FE20 梅特勒-托利多仪器 实验室电导率仪 梅特勒-托利多FE30 梅特勒-托利多仪器 分析天平 AL204 梅特勒-托利多仪器 RK打样机 KPP印刷验证机 RK公司 XRITE分光光度计 SP62 美国爱色丽公司 平磨仪 PM240-2 广西梧州市润训宝石机械厂 扫描电镜 JSM-5600 LV 日本电子光学公司 325目筛网 75 mm 顺兴化学试剂公司 600目筛网 75 mm 顺兴化学试剂公司 光泽度计 BGD516-3 广州标格达仪器有限公司 粘度杯 3# 日本东洋rigosha 秒表 RESEE RESEE生产 数显粘度计 NDJ-5S/8S 上海平轩科学仪器有限公司 粉碎机 nn-8000 上海比朗仪器有限公司 实验室砂磨机 VSM 无锡新光粉体 粒度仪 马尔文2000 英国马尔文 汽粉机 YQ50 上海塞山粉体机械制造有限公司 色差仪 Labscan XE Hunter XRF TIGER-S8 德国布鲁克 表 2 无机包覆后组分含量及吸油量
Table 2. Content and oil absorption after inorganic coating
序号 w/% 吸油量(100 g)/g Al2O3 SiO2 P2O5 TiO2 1# 1.1903 0.2619 0.1825 98.0366 16.2 2# 3.0846 0.4637 0.1973 95.7897 18.5 3# 2.1105 0.3528 0.1746 96.9831 17.6 4# 3.8166 1.8577 0.1915 93.5388 20.1 5# 3.4523 0.2871 0.1856 95.3974 19.3 6# 3.6592 5.3619 0.1944 90.2327 21.3 7# 2.7684 2.8417 0.1555 93.6834 20.8 表 3 颜料和聚氨酯油墨遮盖力指标
Table 3. Index of pigment and polyurethane ink covering power
序号 L a b TCS 遮盖力/% 总钛/% 1# 95.14 −1.11 1.85 2 030 57.3 98.0366 2# 95.60 −1.14 1.75 2 057 58.5 95.7897 3# 95.4 −1.08 1.81 2 045 57.9 96.9831 4# 95.59 −1.12 1.79 2 058 58.9 93.5388 5# 95.63 −1.08 1.74 2 006 58.2 95.3974 6# 95.61 −1.11 1.82 2 023 59.7 90.2327 7# 95.61 −1.10 1.77 2 003 58.4 93.6834 -
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