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Method for measuring heat sealability of glass paper

A cellophane and performance technology, applied in measuring devices, flow characteristics, instruments, etc., can solve problems such as irregular operation and inaccurate values, and achieve the effects of simple operation, simple and easy-to-obtain equipment, and low measurement costs.

Active Publication Date: 2010-10-06
SHANDONG HENGLIAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Most of the current measurement methods are based on the hand feeling test, the value is not accurate, and the operation is not standardized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1, first hang the clip at the upper end of the spring scale on the experimental shelf, fix the small iron clip on the lower end of the spring scale, prepare the heat seal strength tester at the same time, then measure the heat sealability of the cellophane according to the following steps:

[0015] Cut off the cellophane to be tested whose length is slightly longer than 300mm, remove the edge of the paper, and then cut 6 strip-shaped samples with a width of 37mm and a length of 300mm along the longitudinal direction of the cellophane to be tested according to the rule of uniform distribution; place each sample in the middle The part is folded in half horizontally, and one of the folded samples is placed above the heat seal strength measurement, and thermally bonded at a position 40mm parallel to the middle crease, the bonding time is 3 seconds, and the bonding temperature is 140±5 ℃, the bonding pressure is 200-300 kPa, and then let it cool naturally; clamp on...

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Abstract

The invention relates to a method for measuring heat sealability of glass paper, which comprises the following steps: cutting a plurality of long stripped samples on glass paper to be measured; after the middle part of each sample is folded in the transverse direction, placing the samples on a heat sealing intensity test instrument; carrying out hot adhesion on proper parts; after the samples are cooled through placement, clamping one edge of the opening end of the samples by a clamping device at the lower end of a spring scale; pinching the other edge by hand for tightly tearing the samples until the adhesion parts are completely peeled off; reading and recording the peeling load; and finally, calculating the average value to be used as the heat sealability data of the glass paper to be measured after all measurements are completed. The invention has the advantages that the operation is simple and convenient, the used tool and equipment are simple and can be easily obtained, the measurement cost is low, the measuring data is accurate, and the invention can provide the importance assurance for the quality improvement of the glass paper.

Description

technical field [0001] The invention relates to a method for measuring the heat-sealing performance of cellophane. Background technique [0002] Cellophane has excellent properties such as high transparency, barrier, heat resistance, antistatic, waterproof, and moisture resistance, especially strong heat sealing and environmental protection. In recent years, it has been increasingly used as packaging materials, especially food packaging Material. When cellophane is used as a food packaging material, its performance, especially heat sealing performance, is relatively high and needs to meet certain standards. This requires cellophane manufacturers to accurately measure their heat-sealing properties when producing cellophane. Most of the current measurement methods are based on hand feeling test, the value is inaccurate, and the operation is not standardized. Contents of the invention [0003] The purpose of the present invention is to provide a method that can accurately ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/00
Inventor 张晓煜王晓荣张文文
Owner SHANDONG HENGLIAN NEW MATERIALS CO LTD
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