基于AHP和DEA的喷墨打印纸质量预测模型的建立

The Quality Prediction Model of Ink-jet Paper Based on AHP and DEA

为提高喷墨印刷品质量,降低产品的废品率,有必要建立一套科学合理的喷墨打印纸评价模型。在众多的评价模型中,层次分析法(AHP)侧重于主观经验,数据包络分析法(DEA)依赖于客观数据。综合AHP和DEA的优点,可建立一种将主观评价与客观评价相结合的喷墨打印纸质量预测模型,使其更能符合喷墨印刷作业的生产需要。选取了4种喷墨打印纸,分别测试其吸水性、粗糙度、灰分、白度和光泽度等表面性能,采用线性加权的方式计算出各表面性能对喷墨打印纸质量影响的综合权重,最后建立了基于AHP和DEA的喷墨打印纸质量预测模型。在相同的实验条件下,测试了4种喷墨打印纸的SEM图,并分别输出GATF标准梯尺,用QEA图像分析仪测试了青色油墨网点的平均直径。以SEM图、青色油墨网点平均直径作为喷墨打印纸质量的检测标准,对模型进行了验证。结果表明,基于AHP和DEA的喷墨打印纸质量预测模型能够精确预测喷墨打印纸的质量,该预测模型在评价纸张时,省去了打样工序,相对于传统的评价方法,具有科学实用的特点。

In order to improve the quality of ink-jet prints and reduce the rejection rate of products,it is necessary to establish a scientific and reasonable evaluation model of ink-jet paper.In many evaluation models,AHP(Analytic Hierarchy Process) focuses on subjective experience,and DEA(Data Envelopment Analysis) relies on objective data.To synthesize the advantages of AHP and DEA,the quality prediction model combining subjective evaluation and objective evaluation could be established,which is more in line with the production needs of ink-jet printing operation.Four kinds of ink-jet paper were selected,and the surface characteristics such as absorbency,roughness,ash content,whiteness and gloss were tested.The weight of each characteristic index on the quality of ink-jet paper was calculated by linear weighting,and finally the quality prediction model of ink-jet paper based on AHP and DEA was established.Under the same experimental conditions,the SEM images of four kinds of ink-jet paper were analyzed and the GATF standard ruler was printed.The average diameter of the dot was measured by QEA image analyzer.The results showed that the ink-jet paper quality prediction model based on AHP and DEA could accurately predict the printing quality of the ink-jet paper by using the SEM image and the average diameter of the dot as the testing standard.When using the model to evaluate the quality of the paper,the proofing process is omitted,and it has scientific and practical characteristics compared with the traditional evaluation method.