Lightweight paper is a thin, soft paper commonly used for packaging, printing and writing. Because of its special paper structure and properties.

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Its detection needs to pay attention to the following main performance:

Kapal at densidad: The thickness and density of lightweight paper will directly affect its stability and use effect. Ang kapal at density ay maaaring masukat sa pamamagitan ng pagsukat ng kapal ng papel, density at base timbang.

Paper strength: Lightweight paper needs to have a certain strength to ensure stability and durability. Ang pagsubok ng lakas ay maaaring isagawa sa pamamagitan ng pagsukat ng lakas ng paghatak, tear strength, folding resistance and other indicators.

Paper flexibility: Lightweight paper needs to be flexible to ensure its suitability for use in areas such as packaging and printing. Flexibility can be tested by measuring the number of folds and bending of the paper and other indicators.

Flatness: Lightweight paper needs to have a certain flatness to ensure stability and printing effect during the printing process. Ang flatness ay maaaring masukat sa pamamagitan ng pagsukat ng papel na ibabaw ng kinis, balahibo taas at board convexity at iba pang mga tagapagpahiwatig.

Main properties and testing methods of light paper

Wear resistance of paper: Lightweight paper needs to have certain wear resistance to ensure its durability and use effect. Ang paglaban sa pagsusuot ay maaaring masuri sa pamamagitan ng pagsukat ng antas ng pagsusuot at katigasan ng ibabaw ng papel.

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, does not contain harmful substances, walang polusyon sa kapaligiran. Ang proteksyon sa kapaligiran ay maaaring masuri sa pamamagitan ng pagsukat ng mga volatile organic compounds, mga mabibigat na metal, mga ions ng klorido, floresan brighteners at iba pang mga tagapagpahiwatig.

Saklaw ng aplikasyon: 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. Iba't ibang mga kinakailangan sa paggamit at pamantayan ay makakaapekto rin sa mga pamantayan sa pagsubok at pamamaraan ng papel.