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A method for measuring the heat-sealing performance of cellophane

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

Active Publication Date: 2011-11-30
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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PUM

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Abstract

A method for measuring the heat-sealing performance of cellophane, which is to cut several strip-shaped samples on the cellophane to be tested, fold each sample horizontally in half at the middle part, place it on a heat-sealing strength tester, and place it on a suitable part Carry out thermal bonding, place to cool and then clamp one side of the open end of the above-mentioned sample with the clamping device at the lower end of the spring scale, pinch the other side with your hand and gently tear until the adhesive part is completely peeled off, read the peeling load and record it, Finally, after all the measurements are completed, the average value is calculated as the heat-sealability data of the tested cellophane. The invention is easy to operate, the tools and equipment used are simple and easy to obtain, the measurement cost is low, and the measurement data is accurate, which can provide an important guarantee for improving the quality of cellophane.

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 Patents(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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