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A method for measuring warpage of trademark paper and its application

A measuring method and technology of trademark paper, applied in the direction of mechanical solid deformation measurement, etc., can solve problems such as lack of testing methods, and achieve the effects of easy mastery, improved work efficiency, and simple structure

Active Publication Date: 2016-06-08
CHINA TOBACCO GUANGDONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant test method for the warpage of label paper. It mainly relies on visual inspection and on-machine verification. Before the test on the machine, there is a lack of effective testing methods to pre-judge the warpage of label paper.

Method used

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  • A method for measuring warpage of trademark paper and its application
  • A method for measuring warpage of trademark paper and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Several pieces of small box label paper samples to be tested are conditioned for at least 24 hours at a temperature of (23±1)°C and a relative humidity of (60±2)%, and the test is carried out under the environmental conditions specified in the above standards.

[0018] (2) Take a piece of trademark paper sample to be tested, and place the convex side of the sample to be tested on a horizontal plastic plate with precise scales. The two corners of each side of the sample touch the horizontal plastic plate. The scale on the plastic plate calculates the length (L) when the edge of the maximum vertical displacement of the sample and the platform touches the horizontal plastic plate.

[0019] (3) Use a vertical plastic plate with precise scales to measure the maximum vertical displacement (R) between the sample and the horizontal plastic plate, and calculate the warpage of the sample (R / L×100%) to be 7.03%.

[0020] Take 5000 sheets of this batch of label paper and carry ...

Embodiment 2

[0022] The difference from Example 1 is that several pieces of the tested small box of label paper samples were conditioned for at least 24 hours at a temperature of (23±1)°C and a relative humidity of (50±2)%. According to the test in Example 1 method, the calculated warpage of the sample (R / L×100%) is 4.72%.

[0023] Take 5000 sheets of this batch of label paper and carry out the machine test on the GDX1 machine, and the starting speed is 400 packs / minute. The machine test results show that the equipment is operating normally, no paper jams or paper jams have occurred during the machine test, and the quality of the packs of cigarettes meets the regulations.

Embodiment 3

[0025] The difference from Example 1 is that the tested small box of label paper is different. Several sheets of samples are conditioned for at least 24h at a temperature of (23±1)°C and a relative humidity of (60±2)%. According to Example 1 According to the test method, the warpage of the sample (R / L×100%) is calculated as 3.95%.

[0026] Take 5000 sheets of this batch of label paper and carry out the machine test on the GDX1 machine, and the starting speed is 400 packs / minute. The results of the machine test showed that the equipment was operating normally, and no paper jams or paper jams occurred during the machine test. The quality of the packs of cigarettes meets the regulations.

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Abstract

The invention discloses a method for measuring the warp degree of label paper, which is characterized in that: a sample of label paper to be tested is taken, and the convex surface of the sample to be tested is placed horizontally on a horizontal plastic plate with precise scales, The two corners of each side of the sample touch the horizontal plastic plate, measure the maximum vertical displacement (R) between the sample and the horizontal plastic plate with a vertical transparent plastic plate with precise scale, and calculate the test with the scale on the horizontal plastic plate The length (L) when the side of the sample with the maximum vertical displacement of the platform touches the horizontal plastic plate (L), and the warpage of the sample is R / L×100%. The invention can quickly obtain the warpage data of the label paper, and pre-judge the warpage of the label paper before the test on the machine. Moreover, the measuring instruments used are simple in structure, easy to operate and easy to grasp.

Description

technical field [0001] The invention belongs to the technical field of cigarette package testing, and in particular relates to a method for measuring the warping degree of trademark paper. Background technique [0002] During the transportation and packaging process of the label paper, due to changes in temperature and humidity and improper packaging, the label paper is prone to warping to the front, to the reverse, and diagonal warping to varying degrees. If the warping of the label paper is too large, problems such as paper jams and poor start-up are likely to occur during the loading process of cigarette packs, which affects the effective operation rate of the packaging machine; appearance problems such as skewed and out-of-center cigarette packs may also occur , Seriously affect the appearance quality of cigarette packaging. As the automatic packaging speed of cigarette enterprises has been greatly increased, the requirements for the warping degree of label paper are ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/30
Inventor 刘丹方细玲
Owner CHINA TOBACCO GUANGDONG IND