Paper, which is useful in everyday life, is also often seen. So everyone really knows about paper? Do you know how many types of paper? I believe that many of my friends don't know. Let's just say that Xiaobian, knowing the paper, only has copy paper, copy paper, and copy paper. A friend asked what is copy paper and sulfuric acid paper? What is its purpose? So today, Xiaobian will introduce you to the use of copy paper and sulfuric acid paper:
    Copy paper is a kind of high-grade cultural industrial paper, and the production is quite difficult. Need to go through complicated sedimentation separation technology, I will not introduce it in detail here. Interested friends can go to the factory for reference! Due to the complicated manufacturing process, the copy paper has good physical strength, is not easy to be pulled, or is torn. Broken! And it also has good transparency and a uniform density distribution. From the appearance point of view, the copy paper is smooth, smooth and smooth without bubble sand. At the same time, copy paper is also very important printing paper, which can be used to print trademarks, corporate logos. Is a very useful paper!
    To say the most common place for copy paper, it is probably to pack the fruit. The thin layer of wrapping paper outside the fruit we often see is copy paper. For example, when buying Sydney, you will find that Sydney is wrapped in a layer of almost transparent paper, that is, copy paper. Therefore, the copy paper also has a name called Sydney paper.
    Sulfuric acid paper is intertwined by fine plant fibers. It is freely beaten in the wet state, without glue, without filler, paper, soaked in 72% concentrated sulfuric acid for 2~3s, washed with water and treated with glycerin. After drying, A substance of a hard film type formed. Sulfuric acid paper is solid, dense and slightly transparent. It has strong resistance to grease and water, is airtight, and has high wet strength. It can be waterproof, moisture-proof, oil-proof, sterilized and disinfected.
    Sulfuric acid paper, also known as plate-making sulfuric acid transfer paper, is mainly used in the printing and plate-making industry. It has the characteristics of pure paper, high strength, good transparency, no deformation, light fastness, high temperature resistance and anti-aging. It is widely used in hand drawing and pen/ Inkjet CAD plotter, engineering xerography, laser printing, art printing, file recording, etc. There are various specifications such as 63 g A4, 63 g A3, 73 g A4, 73 g A3, 83 g A4, 83 g A3, 90 g A4, and 90 g A3.
    The use of copy paper and sulfuric acid paper is very extensive in life, and everyone's introduction above can help everyone.
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