Abstract
This paper discusses about the scatter of the intensity of vibration signals of paper prints and analyses their mechanical parameters applying the theory of covariance functions. It is an important practical problem, before starting printing process of colour prints, expecting the correct position of fixed raster points, to adjust the paper sheet tension between printing machine sections. The results of measuring the intensity of vibration signals at the fixed points were presented on a time scale in the form of arrays (matrices). The estimates of cross-covariance functions between digital arrays result in measuring the intensity of vibrations, and the estimates of auto-covariance functions of single arrays were calculated upon changing the quantization interval on the time scale. Application of normed auto-covariance and cross-covariance functions enables reduction of preprinting experimental measurements, which saves time (what is actual for industry). Tension force depends on the mechanical properties of the paper sheet and print. These characteristics depend on paper type, layers of printing colors and positioning of the coverage. In the calculation, the software Matlab 7 in batch statement environment was applied.
Funding statement: Authors state no funding involved.
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Conflict of interest: The authors declare no conflicts of interest.
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Articles in the same Issue
- Frontmatter
- Review paper
- On the development of the refiner mechanical pulping process – a review
- Bleaching
- Oxalate formation during ClO2 bleaching of bamboo kraft pulp
- Mechanical pulping
- Defibration mechanisms and energy consumption in the grinding zone – a lab scale equipment and method to evaluate groundwood pulping tools
- Paper technology
- Insight into fractionation performance of American old corrugated containers pulp in pressure screening
- Comprehensive utilization of Ganoderma lucidum residues in papermaking
- Effect of turbulence generator structures to the performance of medium-consistency pump at high rotation speed excesses 2000 rpm
- Mechanical properties of low-density paper
- Determination of relative solids concentration in homogeneous dual component pulp-filler suspension by multi-spectrophotometer
- Paper physics
- Surface characterization of paper and paperboard using a stylus contact method
- Paper chemistry
- Filler modified by a sequential encapsulation and preflocculation method and its effect on paper properties
- Significant contribution of fibrils on pulp fiber surface to water retention value
- Impregnation of paper with cellulose nanofibrils and polyvinyl alcohol to enhance durability
- Printing
- Vibration measurements of paper prints and the data analysis
- Predicting inkjet dot spreading and print through from liquid penetration- and picoliter contact angle measurement
- Environmental impact
- Hydrophobic cellulose aerogel from waste napkin paper for oil sorption applications
- A comparative study of an anaerobic-oxic (AO) system and a sequencing batch biofilm reactor (SBBR) in coating wastewater treatment and their microbial communities
- Acknowledgment
- Acknowledgment
Articles in the same Issue
- Frontmatter
- Review paper
- On the development of the refiner mechanical pulping process – a review
- Bleaching
- Oxalate formation during ClO2 bleaching of bamboo kraft pulp
- Mechanical pulping
- Defibration mechanisms and energy consumption in the grinding zone – a lab scale equipment and method to evaluate groundwood pulping tools
- Paper technology
- Insight into fractionation performance of American old corrugated containers pulp in pressure screening
- Comprehensive utilization of Ganoderma lucidum residues in papermaking
- Effect of turbulence generator structures to the performance of medium-consistency pump at high rotation speed excesses 2000 rpm
- Mechanical properties of low-density paper
- Determination of relative solids concentration in homogeneous dual component pulp-filler suspension by multi-spectrophotometer
- Paper physics
- Surface characterization of paper and paperboard using a stylus contact method
- Paper chemistry
- Filler modified by a sequential encapsulation and preflocculation method and its effect on paper properties
- Significant contribution of fibrils on pulp fiber surface to water retention value
- Impregnation of paper with cellulose nanofibrils and polyvinyl alcohol to enhance durability
- Printing
- Vibration measurements of paper prints and the data analysis
- Predicting inkjet dot spreading and print through from liquid penetration- and picoliter contact angle measurement
- Environmental impact
- Hydrophobic cellulose aerogel from waste napkin paper for oil sorption applications
- A comparative study of an anaerobic-oxic (AO) system and a sequencing batch biofilm reactor (SBBR) in coating wastewater treatment and their microbial communities
- Acknowledgment
- Acknowledgment