Double gray paper is a commonly used packaging paper. It is a composite cardboard made of two layers of gray board paper bonded together. It has high strength and rigidity and is widely used in packaging, printing, folder making and other fields.
Detection performance
The performance test of double gray paper usually includes the following aspects:
Detection of basis weight: Calculate the basis weight per square meter by weighing the weight of a double gray paper sample of a certain size. Weighing is usually performed using precision electronic scales or balances.
Detection of thickness and uniformity: measure the thickness of the double gray paper by using a manual or automatic Thickness Gauge, and at the same time detect the uniformity by laser measurement or machine measurement method. Manual Thickness Gauges usually use hand-held thickness measuring instruments, automatic Thickness Gauges usually use laser triangulation to measure thickness, and the method of detecting uniformity can be carried out using machine vision systems.
Strength testing: measure the tensile strength, compressive strength and other indicators of double gray paper by using strength testing instruments, such as electronic tensile machines, multi-functional testing machines, etc.
Corrugated detection: use instruments such as corrugated height gauge or corrugated pressure Tester to detect the corrugated height and corrugated strength of double gray paper.
Packaging performance testing: use packaging performance testing instruments, such as corrugated compression Testers, corrugated bending Testers, stacking Testers, etc., to measure the compressive strength, bending strength, stacking stability and other properties of cartons made of double gray paper.
Printability test: use printing quality testing instruments, such as printing accuracy Tester, printing speed Tester, ink adhesion Tester, etc., to measure the printing quality, printing speed and ink adhesion of double gray paper.
Environmental testing: by using environmental testing instruments, such as volatile organic compound Tester, heavy metal Tester, chloride ion Tester, etc., to measure the content of volatile organic compounds, heavy metals, chloride ions and other harmful substances in double gray paper.
Detection of tensile strength and elongation at break: The tensile strength and elongation at break of double gray paper were measured by using a Tensile Testing Machine.
Detection of moisture content: By using a moisture content Tester to measure the moisture content in double gray paper to evaluate its quality.
Detection of Acidity and Alkalinity: Detect the acidity and alkalinity of double gray paper by using a PH value Tester or a pH Tester.
Testing of water resistance: measure the water resistance of double gray paper by using a water resistance Tester.
Detection of abrasion resistance: the abrasion resistance of double gray paper is measured by using an abrasion Tester.
Detection of flexibility: by using a flexibility Tester to measure the flexibility of double gray paper.
Detection methods and instruments
The specific detection methods and instruments of double gray paper are as follows:
Detection of basis weight: take a double gray paper sample of a certain size, weigh its weight, and calculate the basis weight per square meter. Weighing is usually performed using precision electronic scales or balances.
Inspection of thickness and uniformity: use manual or automatic Thickness Gauge to measure the thickness of double gray paper, and use laser measurement or machine measurement method to detect the uniformity. Manual Thickness Gauges usually use hand-held thickness measuring instruments, automatic Thickness Gauges usually use laser triangulation to measure thickness, and the method of detecting uniformity can be carried out using machine vision systems.
Strength testing: Use double gray paper strength testing equipment to measure its tensile strength, compressive strength and other indicators. Usually use electronic tensile machine, multi-function testing machine, burst strength Tester and other equipment for testing.
Corrugation detection: use instruments such as corrugation height gauge or corrugation pressure Tester to detect the corrugation height and corrugation strength of double gray paper. These instruments usually use photoelectric sensors or laser sensors to measure.
Packaging performance testing: Use packaging performance testing instruments to measure the compressive strength, bending strength, stacking stability and other properties of cartons made of double gray paper. The corrugated compression Tester can measure the compression performance of corrugated cardboard, the corrugated bending Tester can measure the bending performance of corrugated cardboard, and the stacking Tester can measure the stacking stability of corrugated boxes.
Printability test: Use printing quality testing equipment to measure the printing quality, printing speed and ink adhesion of double gray paper. The printing accuracy Tester can measure the printing quality, the printing speed Tester can measure the printing speed, and the ink adhesion Tester can measure the adhesion performance of ink and paper.
Environmental testing: Use environmental testing instruments to measure the content of volatile organic compounds, heavy metals, chloride ions and other harmful substances in double gray paper.
