Method for detecting the sealing strength of heat seals in moon cake packaging - Database & Sql Blog Articles

Summary:

Moon cake is a traditional dish of the Chinese nation and a must-have for the Mid-Autumn Festival. The sealing strength of the mooncake packaging heat seal is directly related to the sealing performance and bag breaking rate of the package, and affects the quality of the mooncake during the circulation process. This article

Labthink

Languang

XLW(M)

intelligent

Electricity

child

Pull

force

test

Taking the test of the sealing strength of the heat sealing seal of the moon cake packaging as an example, the testing principle, parameters and basic test procedures of the equipment are introduced, which provides an effective and effective verification method for the enterprise to detect the sealing effect of the packaging heat sealing.

Key words:

Heat sealing, sealing mouth, heat sealing strength, sealing strength, heat sealing strength, soft plastic packaging, intelligent electronic tensile testing machine, moon cake, pastry, air leak, bag

1

,significance

The sealing strength of the package heat sealing is also called the heat sealing strength. The strength of the sealing is mainly related to the heat sealing parameters of the heat sealing machine and the heat sealing layer material of the packaging bag.

Moon cake is a long-established traditional Han Chinese snack. It is a must-eat for the Mid-Autumn Festival. It symbolizes reunion and harmony. There are many types of moon cakes and different flavors. Among them, Cantonese style, Beijing style, Soviet style, and tidal style moon cakes are popular among people from all over the North and South. Moon cakes often contain more oil and fat components, which are sensitive to oxygen. They require good sealing and barrier properties. The sealing of mooncake packaging is mainly related to the sealing strength of heat seals. In addition, the sealing strength of the package is poor, and it may cause problems such as air leakage, bagging, and bag breaking at the sealing of the mooncake package.

2

,status quo

At present, the packaging materials of mooncakes on the market are mainly plastic composite membranes. The mooncakes are often protected by a tray structure, and a deoxidizer is built in to reduce the oxygen content in the package.

Figure

1

Moon cake common packaging form

Main reference for testing standards for heat seal sealing strength of soft plastic packaging

QB/T 2358-98

"Test method for heat sealing strength of plastic film packaging bags".

3

Test sample

A brand of moon cake plastic composite film packaging bags.

4

,Testing Equipment

This test is based on the independent research and development of Jinan Languang Electromechanical Technology Co., Ltd.

XLW(M)

The intelligent electronic tensile testing machine detects the sealing strength of the sample.

Figure

2 XLW(M)

Intelligent electronic tensile testing machine

4.1

Equipment principle

The device is divided into two upper and lower chucks, the upper chuck is a movable chuck, which can move according to the set speed. The upper chuck is equipped with a force value sensor and a displacement sensor, and the lower chuck remains stationary during the test. Do not move. During the test, the two ends of the sample are clamped on the upper and lower chucks respectively, and the two chucks are moved relative to each other, so that the sample is displaced and the force value is changed, and recorded by the force sensor and the displacement sensor in real time. After processing and calculation, the sealing strength, tensile, tearing, deformation rate and other performance indexes of the sample are obtained.

4.2

Scope of application

(1)

This equipment is suitable for sealing material (heat seal strength) performance, tensile strength and deformation rate, tensile strength, tear resistance, shear performance,

180

Degree peeling,

90

The performance of the peeling and other properties; by replacing the fixture, the device can also be extended to the puncture resistance of the film, the puncture force of the infusion bag cover, the puncture of the soft rubber stopper or the oral liquid cap

/

Pulling force, opening force of combination cover, opening force of jelly cup and yogurt cup, drawing force of cosmetic brush or toothbrush bristles, tape unwinding force, separation of protective film, tension of ziplock bag, etc. Or the detection of packaging performance.

(2)

This device complies with a number of national and international standards, such as

ISO 37

,

GB 13022

,

GB 8808

,

GB 1040

,

GB 4850

,

GB 7753

,

GB 7754

,

GB 453

,

GB/T 17200

,

GB/T 16578

,

GB/T 7122

,

GB/T 2790

,

GB/T 2791

,

GB/T 2792

,

ASM E4

,

ASTM D828

,

ASTM D882

,

ASTM D1938

,

ASTM D3330

,

JIS P8113

,

QB/T 2358

,

QB/T 1130

Wait.

4.3

Device parameters

l

Equipment specifications are

100 N

,

200 N

,

500 N

Three options and accuracy

1

level.

l

The test speed of the equipment is

7

File, respectively

50 mm/min

,

100 mm/min

,

150 mm/min

,

200 mm/min

,

250 mm/min

,

300 mm/min

,

500 mm/min

Users can choose according to different test standards.

l

A test machine integrates seven independent test procedures, such as stretching, peeling, tearing, and heat sealing, to provide users with a variety of test items.

l

The sample is clamped pneumatically, and the clamping portion is evenly stressed to ensure the accuracy of the test data.

l

Intelligent configuration such as limit protection, overload protection, automatic return and power-down memory to ensure the user's operation safety.

l

By matching

Lystem ^TM

Laboratory data sharing system, test data and equipment information can be reported simply by setting up and operating, and it is easy to realize centralized and systematic management of laboratory test data.

5

,Experimental procedure

(1)

Use a cutter to cut the width from each heat seal of the mooncake package sample

15 mm

Expansion length is

100 mm

Sample strip

10

Strips, each heat seal sample is from

3

Samples were taken.

(2)

Set parameter information such as sample width and test speed.

(3)

The sample is unfolded, and the two ends are respectively clamped on the upper and lower chucks so that the long axis direction of the sample coincides with the center line of the upper and lower chucks, and the heat seal portion of the sample is between the upper and lower chucks. The distance is equal.

(4)

Click

"

test

”

Button, the test starts and the instrument automatically displays the final test results.

6

,test results

The average value of the sealing strength on the mooncake packaging sample is

25.431 N/15mm

The average value of the sealing strength of the lower sealing edge is

31.025 N/15mm

The average value of the back seal sealing strength is

15.964 N/15mm

.

7

,in conclusion

The sealing effect of the heat sealing of the packaging bag has an important influence on the sealing performance of the packaging bag and the impact resistance of the sealing. Seal strength is a physical indicator to characterize the sealing effect of heat seals.

XLW(M)

The intelligent electronic tensile testing machine tests the sealing strength of the upper and lower sealing edges and the back sealing edge of the moon cake packaging bag. The test results are reproducible, the test results are accurate and reliable, and the instrument operation is simple. In addition to the sealing strength, attention should also be paid to the oxygen permeability, sealing performance, solvent residue, friction coefficient and other performance indicators of the moon cake packaging bag. Relevant testing equipment and services can be accessed.

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0531-85068566

advisory.

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