La carta leggera è sottile, carta morbida comunemente utilizzata per l'imballaggio, stampa e scrittura. Because of its special paper structure and properties.

Prestazioni di rilevamento
Its detection needs to pay attention to the following main performance:

Spessore e densità: The thickness and density of lightweight paper will directly affect its stability and use effect. Lo spessore e la densità possono essere misurati misurando lo spessore della carta, densità e peso base.

Forza della carta: Lightweight paper needs to have a certain strength to ensure stability and durability. La prova di resistenza può essere effettuata misurando la resistenza alla trazione, resistenza allo strappo, resistenza alla piegatura e altri indicatori.

Paper flexibility: Lightweight paper needs to be flexible to ensure its suitability for use in areas such as packaging and printing. La flessibilità può essere testata misurando il numero di pieghe e piegature della carta e altri indicatori.

Planarità: Lightweight paper needs to have a certain flatness to ensure stability and printing effect during the printing process. Flatness can be measured by measuring paper surface smoothness, feather height and board convexity and other indicators.

Principali proprietà e metodi di prova delle carte leggere

Wear resistance of paper: Lightweight paper needs to have certain wear resistance to ensure its durability and use effect. The wear resistance can be tested by measuring the wear degree and surface hardness of the paper.

Air permeability of paper: Lightweight paper needs to have some air permeability to ensure that it is suitable for use in areas such as packaging. The air permeability test can be carried out by measuring the air permeability and water vapor permeability of the paper.

Printing performance of paper: Lightweight paper needs to have certain printing performance to ensure the printing quality of printed matter. The printing performance can be tested by measuring the paper’s water absorption, ink absorption, printing clarity, color reduction and resistance to printing pollution and other indicators.

Paper environmental protection: lightweight paper needs to meet environmental standards, non contiene sostanze nocive, nessun inquinamento per l'ambiente. La protezione dell’ambiente può essere testata misurando i composti organici volatili, metalli pesanti, ioni cloruro, sbiancanti fluorescenti e altri indicatori.

Ambito di applicazione: Lightweight paper is used in a very wide range, different uses of lightweight paper need to have different performance requirements. The scope of application can be tested by measuring the applicable environment of paper, applicable packaging items, applicable printing technology and other indicators.

Machinability: Lightweight paper usually needs to be cut, folded, punched and other processing, so it needs to have a certain degree of machinability. The machinability can be tested by measuring the performance change and loss of paper in different processing processes.

The above performance indicators are the key content of light paper testing. Different usage requirements and standards will also affect the testing standards and methods of paper.