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Quantitative analysis method for influence degree of papermaking fiber characteristics on mechanical properties of finished paper

A technology for quantitative analysis of fiber characteristics, applied in neural learning methods, instruments, biological neural network models, etc.

Active Publication Date: 2020-11-20
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

However, it is still difficult to quantitatively analyze the influence of different papermaking fiber characteristics on the mechanical properties of paper by using regression analysis and establishing empirical formula models, thus causing certain uncertainties in the production and scientific research of the industry

Method used

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  • Quantitative analysis method for influence degree of papermaking fiber characteristics on mechanical properties of finished paper
  • Quantitative analysis method for influence degree of papermaking fiber characteristics on mechanical properties of finished paper
  • Quantitative analysis method for influence degree of papermaking fiber characteristics on mechanical properties of finished paper

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Embodiment 1

[0052] This embodiment discloses a gray relational quantitative analysis method for the analysis of the degree of influence of papermaking fiber characteristics on the mechanical properties of paper, including 3 steps (such as figure 1 shown), the specific description is as follows:

[0053] S1. Obtain experimental data of different papermaking fiber characteristic parameters, papermaking process parameters and paper mechanical performance parameters;

[0054] In order to analyze the influence of papermaking fiber characteristics on the mechanical properties of paper and establish a statistical model of the relationship between the two, it is necessary to first obtain the experimental data of relevant parameters. The relevant parameters to be considered include: different papermaking fiber characteristic parameters, papermaking process parameters And paper mechanical performance parameters. The specific steps for obtaining parameters are described as follows.

[0055] S11. S...

Embodiment 2

[0116] In this example, 5 commonly used paper-making fiber materials, eucalyptus fiber, coniferous wood fiber, cotton fiber, bagasse fiber and bamboo fiber, are selected for experimental analysis. The papermaking fiber characteristic parameters considered include: fiber length, fiber diameter, fiber wall thickness, fiber thickness, fiber softness and fiber strength index; the considered papermaking process parameters include pulp beating degree; the considered paper mechanical performance parameters include : Tensile strength, tear and burst resistance.

[0117] The specific implementation process of the quantitative analysis of the influence of papermaking fiber characteristics on the mechanical properties of paper is as follows:

[0118] Step T1:

[0119] According to the method described in step S1 in Example 1, the five kinds of papermaking fiber materials to be selected were used to obtain papermaking fiber characteristic parameters (fiber length, fiber diameter, fiber w...

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Abstract

The invention discloses a quantitative analysis method for the influence degree of papermaking fiber characteristics on mechanical properties of finished paper. The quantitative analysis method comprises the following steps: acquiring characteristic parameters of various papermaking fibers, papermaking process parameters of finished paper and mechanical property parameters of finished paper required by modeling and analysis; using a back propagation neural network (BPNN) to establish a relation statistical model between the papermaking fiber characteristics and the mechanical properties of thefinished paper, and analyzing the relation trend of the influence of the papermaking fiber characteristics on the mechanical properties of the finished paper one by one; and quantitatively analyzingthe influence degree of papermaking fiber characteristics on mechanical properties of finished paper based on an ash correlation analysis method. The method is simple and easy to implement, the methodhas the characteristic of simple modeling and analysis process; aiming at the only qualitative relationship understanding between the papermaking fiber characteristics and the mechanical properties of the finished paper at present, the invention provides a quantitative analysis method for the relationship between the papermaking fiber characteristics and the mechanical properties of the finishedpaper, reveals the quantitative result of the influence of the papermaking fiber characteristics on the mechanical properties of the finished paper, and plays an important role in guiding the production and research work of the pulping and papermaking industry.

Description

technical field [0001] The invention relates to the technical fields of pulping and papermaking, machine learning and statistical analysis, in particular to a quantitative analysis method for the degree of influence of papermaking fiber characteristics on papermaking mechanical properties. Background technique [0002] In the field of pulp and paper making, the mechanical properties of the finished paper mainly depend on the characteristics of its raw material, that is, the fiber. However, due to the many characteristics of papermaking fibers, there is mutual influence between different characteristics, and the mechanical properties of papermaking are often determined by the characteristics of multiple papermaking fibers and the papermaking process, so it is difficult to quantitatively analyze the impact of different papermaking fiber characteristics on papermaking. influence on mechanical properties. [0003] In the current production and research in the field of papermaki...

Claims

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Application Information

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IPC IPC(8): G06F30/27G06N3/04G06N3/08G06F119/14
CPCG06F30/27G06N3/084G06F2119/14G06N3/045
Inventor 沈文浩刘寅
Owner SOUTH CHINA UNIV OF TECH
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