Method for testing shock resistance of multi-layer co-extrusion film infusion soft bag

A technology of impact resistance and infusion soft bags, which is applied in the direction of testing material strength by using one-time impact force, testing material strength by applying repeated force/pulsation force, and measuring devices, which can solve problems such as liquid leakage and unusable medicines.

Inactive Publication Date: 2020-07-28
HUBEI HUAQIANG HIGH TECH CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] In the process of transportation and use, the infusion soft bag may leak due to collision or fall and impact. After the leakage, the medicine can no longer be used

Method used

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  • Method for testing shock resistance of multi-layer co-extrusion film infusion soft bag

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Experimental program
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Effect test

Embodiment 1

[0031] A method for testing the impact resistance of a multi-layer co-extruded film transfusion soft bag, which comprises the following steps:

[0032] Step 1: Use the filling equipment to prepare samples of infusion bags, and randomly select N samples of infusion bags for testing;

[0033] Step 2: Place N samples of infusion bags at -25°C±2°C for T1 hour; then at 50°C±2°C for T2 hours; then at 23°C±2°C for T2 hours T3 hours;

[0034] Step 3: Set the required test conditions. Under the set test conditions, the above-mentioned infusion bag sample is subjected to an impact test using an impact tester. The infusion bag sample should be placed horizontally, the impact surface should be horizontal, and the impact area should be Not less than 50mL or 100mL or 125mL or 250mL or 1000mL single-sided full contact area, and record the impact results;

[0035] Step 4: Calculate the impact resistance value and impact leakage rate by the formula:

[0036] The formula is:

[0037] λ=∑n ...

Embodiment 2

[0053] Utilize the multi-layer co-extrusion film transfusion soft bag impact resistance performance test method among the present invention to carry out the test of impact resistance performance to the five-layer film of different samples, filling equipment selects same filling production line, the test result of sample is shown in Table 1 .

[0054] Table 1 The impact resistance test results of different samples

[0055]

[0056] Through the method of the present invention, the pit impact performance of each sample can be tested, and the impact resistance value λ of each sample can be calculated, and the results are shown in Table 1. Combining this method with Table 1, it is not difficult to find that sample 1 has the lowest impact resistance value, the best impact resistance performance, and is least prone to liquid leakage; sample 2 has the largest impact resistance value, and its impact resistance performance is relatively the worst. Leaks easily. Through the comparis...

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Abstract

The invention provides a method for testing the shock resistance of a multi-layer co-extrusion film infusion soft bag, which can be used for digitally characterizing the shock resistance of the infusion soft bag and is convenient for analyzing and comparing the shock resistance and the liquid leakage resistance of the infusion soft bag. The method can be applied to various infusion bag products with different specifications, and test conditions and the number of samples required by the test are specified; according to the method, the impact pressure F, the impact time t, the impact resistancecoefficient [rho], the impact resistance value [lambda] and the impact liquid leakage rate P are defined. The method comprises the following steps: randomly extracting 20 infusion bag products, carrying out high and low temperature treatment, carrying out an impact test, performing calculating to obtain the impact resistance value and the impact liquid leakage rate of the sample, and comparing theimpact resistance value or the impact liquid leakage rate to judge whether the sample meets the use requirements or not, or comparing the strength of the impact resistance between different samples.

Description

technical field [0001] The invention relates to a method for testing the impact resistance of a multi-layer co-extruded film transfusion soft bag, which belongs to the field of performance testing of infusion bags. The level of leakage rate and whether the leakage rate meets the requirements. Background technique [0002] With the development and progress of science, the packaging materials of medicines are also undergoing tremendous changes. The packaging materials of large-capacity injection medicines have changed from glass bottles to the current polyethylene polypropylene materials, and the packaging form has gradually changed from the original bottle type to Bottle type and bag type coexist. Among them, the multi-layer co-extrusion film infusion soft bag is a very common packaging form for large-capacity injection medicines on the market. [0003] In the process of transportation and use, the infusion soft bag may leak due to collision or fall and impact. After the le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/02G01N3/30G01N3/32
CPCG01N3/02G01N3/30G01N3/32
Inventor 吴熊宋小东杨静肖怀泽叶血清
Owner HUBEI HUAQIANG HIGH TECH CO LTD
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