Ang pinahiran na papel ay isang mataas na kalidad na papel sa pag print na kilala para sa mataas na kalidad na pagtatapos ng ibabaw at epekto ng pag print. It is usually used for the printing of high-quality books, mga magasin, picture albums, greeting cards and other cultural publications, as well as high-end packaging, business cards and so on. In the manufacturing process of coated paper, a coating process is usually used to coat the surface of high whiteness paper with a layer of adhesive and white filler, so as to obtain a smooth surface and printing effect.

Ano ang pinahiran na papel at anong pagganap ang dapat subukan?

The detection of coated paper needs to pay attention to the following main properties:

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

Smoothness: Coated paper needs to have a very smooth surface to ensure clarity and detail of text and images. The test of smoothness can be carried out by measuring the paper surface smoothness, feather height and plate crown and other indicators.

Ang pagiging maputi: Coated paper needs to have a certain whiteness to ensure the color restoration and contrast of the printed text and image. The detection of whiteness can be carried out by measuring the color and color difference of the light reflected by the paper.

Gloss: Coated paper needs to have a certain gloss to enhance the visual effect of the print. Ang pagtuklas ng gloss ay maaaring gawin sa pamamagitan ng pagsukat ng reflectivity ng ibabaw ng papel.

Lakas ng loob: Coated paper needs to be strong enough to withstand the tension and pressure in the printing process. Ang pagsubok ng lakas ay maaaring isagawa sa pamamagitan ng pagsukat ng lakas ng paghatak, pagpunit ng lakas at lakas ng compression ng papel.

Printing performance: coated paper needs to have certain printing performance to ensure the printing quality of printed matter. The detection of printing performance can be carried out by measuring the paper’s water absorption, pagsipsip ng langis, printing clarity, color reduction and resistance to printing pollution.

Pangangalaga sa kapaligiran: coated paper needs to meet environmental standards, ay hindi naglalaman ng mga mapanganib na sangkap, walang polusyon sa kapaligiran. Environmental protection can be tested by measuring paper volatile organic compounds, mga mabibigat na metal, chloride ions and fluorescence

Light brightening agent and other indicators to carry out.

Lakas ng bonding: The surface of coated paper is coated with a layer of adhesive and white filler, so its bonding strength also needs to be tested to ensure that the filler on the surface of the paper is not easy to fall off. The adhesion strength can be measured by measuring the peeling strength, cutting strength and ring compression strength of the paper.

Copper coating: copperplate paper is characterized by its surface through a layer of copper and polishing treatment, in order to obtain a good gloss and smoothness, so the quality and uniformity of copperplate paper coating also need to be tested. The detection methods include thickness measurement, surface quality detection and microstructure analysis.

The above performance indicators are the key content of coated paper testing. Iba't ibang mga kinakailangan sa paggamit at pamantayan ay makakaapekto rin sa mga pamantayan sa pagsubok at pamamaraan ng papel.