1. According to the current standards in China, the paper size of 16K is 297mm×2 10mm.
2. The initial popular size of16k paper in China is 186mm×273mm.
Because the format of 787× 1092(mm) paper is defined by China itself, which is inconsistent with international standards and is a non-standard format that has been eliminated.
1K:787× 1092
2K:546×787
4K:393×546
8K:273×393
16K: 186×273
At present, the format size stipulated by the state is an international standard series, which has been incorporated into the national industry standard GB/T 1999 and implemented nationwide. At present, the format size of books and periodicals is mainly series A specifications, as follows: A4 (16k) 297mm× 210mm; a5(32k)2 10mm× 148mm； There are three models of A6 (64k)144mm×105mm, of which A3(8k) has not been determined, but 420mm×297mm is widely used. A2 (4k) 420mm× 594mm.
The concept of open number and folio
Usually, a flat base paper cut according to national standards is called full open paper. Under the premise of not wasting paper and facilitating printing and binding production, cut the fully opened paper into several small pieces with the same area, which is called how many sheets; Binding them into a book is called how many folio.
For the text of a book, the meaning of the folio number is the same as that of the folio number, but for the folio number of the cover and the insert, the meaning is different because of the different areas. Usually, the size of a single-page publication is called folio, such as newspapers and wall charts, which are divided into full page, folio, quarto and octavo.
Because there are several different series of paper formats at home and abroad, although they are all cut into the same size, but the specifications are different. In actual production, full paper with a width of 787× 1092(mm) or 3 1×43 inches is usually called orthogonal paper. Full paper with a width of 889× 1 194(mm) or 35×47 inches is called heavy paper. Because the format of 787× 1092(mm) paper is defined by China itself, which is inconsistent with international standards and is a non-standard format that needs to be phased out.
According to the basic area of paper format, the format specifications are divided into A series, B series and C series. A0 has a folio size of 841mm×1189mm and a folio area of 1m2. B0 has a width of1000 mm×1414 mm and a width area of 2.5m 2:C0 has a width of 9 17mm× 1279mm and a width area of 2.25m2. ..
Uncut paper is called whole paper, and the format of half-cut whole paper is called folio or half-open; The width of the folded paper is called the fourth power; The width of the folded four-fold paper is called 20% off.
If the letter R (or S) is added before the letter of the paper specification mark, it means that the paper is not trimmed and will be reduced to the standard size after cutting. For example, RA4 (or SA4) indicates that the size of uncut paper is 240mm×330mm, and the size after cutting is 2 10 mm× 297 mm.
According to the national standard 1965, the format of books and periodicals is divided into three groups: A, B and C. The original paper in group A is 880mm× 1230mm, B is 787mm× 1092mm and C is 695mm× 960mm. In 1982, GB 788-87 emphasizes the adoption of international standards, which is now being popularized. The new standard retains the A series in the old standard, adopts the B series in the international standard, and cancels the folio of B and C in the original standard. Its purpose is to promote foreign trade and international exchanges. A4, B5, etc. That is, when we usually copy it, it is an international standard.