In daily life, A4 paper is one of the most common office and school supplies, and its selection is crucial to the printing effect and user experience. Here are some detailed suggestions on how to choose A4 paper.
1. Paper Specifications and Sizes
The standard size of A4 paper is 210mm×297mm, which is defined by ISO216, the International Organization for Standardization. When purchasing, you should ensure that the A4 paper you purchase meets this standard size to ensure the beauty of the printing effect and layout.
2. Paper Weight and Thickness
Paper weight indicates the weight of paper per square meter and is one of the important indicators for measuring paper quality. Common A4 paper weights include 70g, 80g, 90g and 100g. Generally speaking, the higher the weight, the thicker the paper and the better the printing effect, but the price is also relatively higher. For daily office or home use, 70g or 80g A4 paper is usually sufficient. If you need higher printing quality or for important documents, you can choose paper with a higher weight.
3. Paper Whiteness and Color
The whiteness of paper is divided into two categories: bleached and natural white. Bleached paper adds chemical substances such as fluorescent agents to make the paper whiter, but it may have a certain impact on human health. The natural white paper has a softer tone, which is beneficial to protect eyesight and is more environmentally friendly. Therefore, when choosing A4 paper, it is recommended to give priority to natural white copy paper.
4. Paper Flatness and Thickness
High-quality A4 paper should have good flatness and uniform thickness. In addition, you also need to pay attention to the toughness, wear resistance, and waterproof and moisture resistance of the paper. These properties will directly affect the printing effect and the service life of the paper.
Paper Electronic Thickness Tester is an instrument specially used to measure the thickness of thin materials such as paper. Put the paper in the measuring port of the paper computer thickness gauge, press the measuring button, and the thickness gauge will automatically measure and display the thickness of the paper.
5. Moisture Content and Storage Conditions
The moisture content of paper is also an important indicator that needs attention. Under normal circumstances, the moisture content of paper should be between 4% and 6%. Paper with too high a moisture content is prone to jamming or affecting the printing effect. Therefore, when choosing A4 paper, you need to pay attention to whether its moisture content meets the standard. At the same time, storage conditions also have a great impact on the quality and service life of paper. It is recommended to store A4 paper in a dry, ventilated environment away from direct sunlight to maintain its good performance.
In summary, when choosing A4 paper, you need to consider factors such as paper specifications, grammage, whiteness, quality, moisture content, and special needs. Choosing according to personal needs and budget can ensure satisfactory printing results and usage experience.
