Maybe we used sulphuric acid paper in our lives, but most people don't understand which one is sulphuric acid paper. Even when it is used, it is very strange. So what is sulphuric acid paper? What are the uses of sulphuric acid paper?
    Sulfuric acid paper is also known as tracing paper, printing transfer paper. Because its main purpose is to draw, but it can also be used for printing and transfer work instead of film. Sulfuric acid paper is semi-transparent and can be printed on the same format as printed film. The difference between the sulfuric acid paper printing plate and the printing film is that it can only be used for simple text and solid bottom, line pattern printing. Before printing, use the laser black printer to put the printed content on the sulfuric acid paper, and then use the printing machine to dry the contents of the sulfuric acid paper to the PS version.
    The classification of printing papers is different according to the reference. Today's production, life, food and clothing are inseparable from printing paper. As its technological level continues to increase, the distribution of printing paper is becoming more widespread. The following is a breakdown of the printing paper for everyone to give a detailed introduction.
First, printing paper classification
1, according to the different classification of paper use
It is divided into industrial printing paper, packaging paper, common use in people's life, and paper in the cultural field.
2, according to different paper types
Divided into sheetfed and web. Of course, the more commonly used ones are sheetfed, and the demand is very large.
3, according to paper size specifications
Generally, the printing paper is different according to the use, and the specifications are different. The common ones are 1.23m*0.8m, 1.28*0.9m, 1.4m*1m. The web is generally six kilometers, and the width can be customized according to needs. .
4, according to the paper weight classification
Usually, the weight of paper per unit area is 250g/m, which is called printing paper. The weight of this paper is called printing paperboard.
5, according to paper shape classification
According to the user and the use of printing paper, the paper is classified as follows: a. The reverse side of the paper can be glued or not; the paper of b coated paper and non-paint printing paper; c color paper and pure white paper;
Second, some common printing papers and uses :
1, coated paper
The paper surface is very smooth, even and thin, with good elasticity and water resistance. The main purpose is to print beautiful albums, postcards or color labels. There are many specifications and models.
2, paper jam
Paper jam is a very thick and hard printing paper. There are yellow core and white core points. Mainly used for printing business cards, invitations, etc.
3, writing paper
    Writing paper is suitable for ink writing, and the writing does not spread when writing. Mainly used for student exercise books, diaries, various forms of books, etc.
4, kraft paper
It has a very high tensile force, with single light, double light, stripes, and no lines. Mainly used for printing on wrapping paper, envelopes and paper bags. It is very versatile.
5, self-adhesive paper
The reason for the glue on the back of the paper is that the paper is very thin. There are mirrors, copper plates, writing stickers, etc., the use is different, the viscosity is also quite different.
    The above is about the use of sulfuric acid paper, the use of sulfuric acid paper is not a lot!
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