What testing instruments are needed in the paper and plastic packaging industry?

What testing instruments are needed in the paper and plastic packaging industry? Today, Haida Instrument analyzes the following seven aspects, hoping to help everyone:

1. Moisture Test (Moisture Tester) This test is the most common one. Whether it is raw materials or finished products should be tested for moisture, because the raw materials are purchased according to the weight. Therefore, the content of water directly affects the cost of the company. For printing, it is necessary to test the moisture of the product after printing so that excessive moisture accumulation will cause mildew. If it is a cardboard box, excessive moisture will stress the carton's resistance to stress.

2. Bursting strength test (breaking strength tester) is mainly used to test the bursting resistance of white paper, gray paper, cardboard, etc. The purpose is to test the firmness of the product in the future use process. . A total of 12 samples were taken without print marks, creases, or significant damage. Sample clamping pressure: > 690kpa (adjustable) equivalent to 7kg

3 . Ring pressure tester (side ring compression strength tester) pressure test, in terms of corrugated board, is commonly used to pull, flat pressure, side pressure, glue, bending and other tests. The most used is the side pressure, and its principle is to take 3 pieces of specifications from the carton or cardboard to 100mm*25mm , no printing, no mechanical indentation. A total of 9 pieces of damaged samples were divided into three groups for testing, and finally the average value was taken out.

The strength of the side pressure can be calculated according to the following formula

R=F × 103 ÷ L

Wherein: R- side pressure strength unit N/m ;

F- sample maximum force N ;

L- sample long dimension mm .

In addition, for papers with a thickness of no more than 1.0mm , the pressure test is a ring pressure test. The test principle is to cut a 152mm*12.7mm strip of paper and then place the specimen in a ring pressure test fixture. In the stress test. As shown below:

This machine is sensed by a high-precision sensor , and the strength is displayed digitally by soft analysis . It is used for corrugated paper and kraft paper tapes with a thickness of 1 mm or less . The sample is placed in a container of a ring disk , and its erection is checked by the machine. The direction of the pressure strength , with a variety of accessories to use , and can test the vertical cardboard strength , bonding strength and flat compressive strength.

4. Bending machine: (flex-breaking tester) This machine is specially designed to test the folding strength of paper and paperboard. The test method is to fix the two ends of the test piece on the machine and the lower jig and apply a certain weight to the test piece. A certain tension. Under the vertical state of the test piece, the lower jig is reciprocally bent to the left and right sides until the test piece is broken and the value of the bending times is recorded.

5. Ink Abrasion Tester : (Ink Decolorization Tester) This machine is used to test the adhesion and firmness of ink to determine the quality of the ink. This machine can do dry grinding test, wet grinding test, decoloring change test, paper fuzzy test and special grinding test. The Ink Abrasion Test is a specially designed test method for evaluating the abrasion or abrasion resistance of ink on paper or cardboard.

6. Carton Compression Tester: (carton compression tester) is controlled by a calculator and has high precision. It is the most direct test instrument for testing the compressive strength of cartons or other packaging containers. It is used to determine the compression resistance of cartons, and Do test holding stacking code. The results of the test can be used as an important reference for the height of the finished product container stacking. The operation settings are all handled by the dialog box of Windows , the self-planning table mode, the test data can be directly called in the main screen, and the function with automatic magnification, to achieve the most appropriate size of the graphics, can be compared with multiple curves at the same time Can choose to translate, overlap, data, with a variety of unit functions metric system, English system can be set, with automatic back to back function, with automatic correction function, full Chinese culture and other barrier-free version of the program without language barriers ( There is also English). Design standard: TAPPI-T804 JIS-Z0212 .

Haida Instrument specializes in production and sales: packaging testing equipment , paper and paperboard testing equipment, bursting strength testing machine , and ring pressure testing machine