复合金卡小盒商标纸质量指标对包装机组适用性的影响

Effects of quality indexes of composite cardboard packet blank on its machine adaptability

为明确复合金卡小盒商标纸在生产和检验中的关键质量指标,采用相关分析法和正交试验法,研究了商标纸各质量指标相关性及对包装机组适用性的影响。结果表明:(1)商标纸前端、中间、后端平整度,定量,厚度,动摩擦系数,3、4、5点折痕挺度和纸张机械方向挺度均对小盒商标纸适用性有显著影响。(2)商标纸随着厚度增加,剔除量和影响设备有效作业率有降低趋势;随着3、4、5点折痕挺度提高,剔除量和影响设备有效作业率有增加趋势。(3)商标纸质量指标最优组合为前端平整度1.0 mm,中间平整度-1.1 mm,后端平整度-1.2 mm,定量247.1 g/m2,厚度0.33 mm,动摩擦系数0.187,3、4、5点折痕挺度68.0 g,纸张机械方向挺度14.0 g。(4)相关质量指标优化后,设备停机率降低17.65百分点,设备有效作业率提高7.65百分点,剔除量减少0.35包/万支。对商标纸关键质量指标进行优化可有效提高复合金卡小盒商标纸机台适用性。

In order to find out the key quality indexes of composite cardboard packet blank in production and inspection, the correlation between the indexes and their influences on machine adaptability were investigated.The results showed that： 1） The flatness at front end, middle portion and rear end, grammage, thickness, kinetic friction coefficient, stiffness of No.3, 4, 5 fold lines, stiffness in mechanical direction significantly influenced the adaptability of the blank.2） With the increase of blank thickness, rejection rate decreased and machine efficiency showed an upward trend; however it was on the contrary when the stiffness of No.3, 4, 5 fold lines increased.3） The optimal indexes combination was the flatness at front end, middle portion and rear end1.0,-1.1,-1.2 mm, grammage 247.1 g/m2, thickness 0.33 mm, kinetic friction coefficient 0.187, stiffness of No.3, 4, 5 fold lines 68.0 g, stiffness in mechanical direction 14.0 g.4） At the optimized quality indexes,machine shutdown reduced by 17.65 percentage points, machine efficiency raised by 7.65 percentage points, and the rejection rate of cigarette packets decreased by 35 packets per million cigarettes.The optimized packet blank presents better running characteristics.