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Detection method of BOPP film for cigarette

A detection method and technology for cigarettes, applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of inability to realize rapid on-site detection, cumbersome detection steps, and many detection instruments, and achieve the effect of less detection instruments, simple method, and rapid detection

Inactive Publication Date: 2011-06-08
CHINA TOBACCO CHUANYU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has problems such as the use of many detection instruments and cumbersome detection steps, and it is impossible to achieve rapid on-site detection.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The present invention will be further elaborated below.

[0033] Select 6 different batches of qualified BOPP film samples to establish a standard database, and perform calculations according to steps 7 to 11 to obtain the Mahalanobis distance Mi of the principal component analysis model of the UV fingerprint of all qualified BOPP film samples. The calculation results are shown in Table 1 :

[0034] Sample No.

[0035] Table 1

[0036] Among all the Mahalanobis distances Mi the maximum value of 2.865 was chosen as the upper control limit UCL.

[0037] Measure the 4 batches of samples 1# to 4# to be tested according to steps 1 to 3 to obtain the principal component analysis model of the UV fingerprint of the BOPP film, and calculate the UV fingerprints of all BOPP film samples in the database according to step 6 The Mahalanobis distance Mi of the map principal component analysis model, the calculation results are shown in Table 2:

[0038] Sample No...

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Abstract

The invention discloses a method for detecting a BOPP film for cigarettes. The method comprises: acquiring an ultraviolet absorption spectrogram of a BOPP film sample to be tested; using S-G smoothing to combine a first derivative to reconstruct an ultraviolet fingerprint spectrum of the BOPP film; establishing a principal component analysis model of the ultraviolet fingerprint spectrum of the BOPP film sample to be tested; selecting an upper control limit (UCL) as a maximum value of mahalanobis distances Mi among the principal component analysis models of ultraviolet fingerprint spectra of not less than five qualified BOPP film samples; and judging whether the BOPP film for the cigarettes is qualified by comparing the sample to be tested and a value of the UCL. The invention overcomes the disadvantages that the prior art uses more detection instruments, has fussy detection steps, and fails to perform quick field detection, provides the method for detecting the BOPP film for the cigarettes which reflects the global quality characteristic of the BOPP film for the cigarettes, uses few detection instruments, is simple, and can perform quick field detection, and can be widely applied to tobacco manufacturing industry.

Description

technical field [0001] The invention relates to a detection method for auxiliary materials for cigarettes, in particular to a detection method for BOPP films for cigarettes. Background technique [0002] BOPP film is a very important flexible packaging material with a wide range of applications. BOPP film is colorless, odorless, tasteless, non-toxic, and has high tensile strength, impact strength, rigidity, toughness and good transparency. The surface energy of BOPP film is low, and corona treatment is required before gluing or printing. However, after corona treatment, BOPP film has good printing adaptability, and can be printed in color to obtain exquisite appearance effect, so it is often used as the surface layer material of composite film. BOPP film also has shortcomings, such as easy to accumulate static electricity, no heat sealability, etc. On a high-speed production line, BOPP film is prone to static electricity, so a static eliminator needs to be installed. In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/33
Inventor 朱立军戴亚黎洪利
Owner CHINA TOBACCO CHUANYU IND