Abstract

The testing of coated paper is very important to ensure that the print quality, surface properties, print suitability and physical properties meet the requirements. Through testing, it can be guaranteed that coated paper can provide high-quality performance in various application fields, and provide reliable performance and stability.

Keywords
Paper Packaging ,ASTM E96 cup method,differential pressure methods , ASTM D1434.

The test of coated paper is very important, mainly reflected in the following aspects:

Print Quality Evaluation: Coated papers are often used to produce high-quality images and text, so testing their print quality is critical. Testing can include assessments of color accuracy, color saturation, image sharpness, detail rendering, and more. Testing ensures that coated papers provide superior print results and meet customer requirements.

Evaluation of surface properties: Surface smoothness, coating uniformity, glossiness and other properties of coated paper have an important impact on the quality of printed products. The test can be evaluated by using surface inspection equipment to ensure that the surface of the coated paper is free from obvious defects, spots, blemishes, etc., and to ensure the quality and consistency of the coating.

Printing adaptability test: Coated paper needs to adapt to various printing processes and equipment, so it is necessary to conduct a printability test. The test can include the evaluation of ink adhesion, printing smoothness, drying speed, etc., to ensure that the coated paper can be used smoothly in different printing processes and obtain the expected printing effect.

Physical properties test: The physical properties of coated paper are of great significance to its stability and durability during transportation, storage and use. Physical property testing can include evaluation of paper thickness, strength, abrasion resistance, folding resistance, etc. to ensure that the coated paper meets the requirements of the specific application and has good mechanical properties.

Water Vapor Permeability Test

W3012.0 is based on the test principle of the ASTM E96 cup method, and is developed, designed and manufactured according to ASTM E96 and other standards. It is suitable for water vapor transmission performance testing of films, sheets, paper, packaging and related materials in the fields of food, medicine, medical equipment, daily chemicals, photovoltaic electronics, etc., and provides high, medium and low water vapor barrier materials. Wide range, high efficiency water vapor transmission rate detection.

Oxygen permeability test

N530L is based on the principle of differential pressure test and is designed and manufactured in accordance wit ASTM D1434.and other standards. Adopt high-precision pressure sensor and automatic pressure difference technology, high test accuracy. It is suitable for the gas permeability test of films, sheets, papers, packages and related materials in the fields of food, medicine, medical equipment, daily chemicals, photovoltaic electronics, etc. It provides a wide range of high, medium and low gas barrier materials. , High-efficiency gas transmission rate detection.