In the printing price calculation work of the printing company, the cost of paper accounts for a considerable proportion in the cost of printed matter, and the calculation of the amount of paper and paper is particularly important. The single page includes the common single page (propaganda page, property advertisement, commodity price list, postal advertisement, etc.) and special single page (cover, insert and insert of books, magazines, etc.). According to the practice of printing pricing teaching for many years, combined with the actual pricing of the printing company, the following talks about the calculation of the amount of paper and paper used for the printing of a single-page offset printing machine.

1 Calculated with paper

In the actual work of a sheet-fed offset printing machine for printing a single page, the amount of paper used includes the amount of paper (theoretical paper amount) calculated from the actual number of printed products, but also the registration adjustment, ink balance, color, and the like during the printing process. A small amount of paper, such as printing pressure, wasted, and a portion of the paper that was wasted by debugging equipment in post-press processing. Therefore, the amount of paper used = the theoretical amount of paper + volume.

1) The theoretical amount of paper (unit: order)

The theoretical amount of paper is the amount of paper that is calculated based on the actual number of printed products, not the actual amount of paper used in the printing process.

Theoretical paper volume = single page number / (single page opening number × 500)

2) increase volume

In the actual printing production process, a small amount of paper is also wasted due to adjustment of register, ink-water balance, color, and printing pressure, and a part of a single page (insert sheet, cover, etc.) is wasted by debugging equipment in post-press processing. Therefore, the total amount of additions and discharges = printing plus volume + stapling plus volume.

1 printing and volume

Printing plus volume = (number of prints per print × print plus rate × number of plates) / (on the machine opening number × 500)

Printing and release rate:

 Each piece of printing plate is less than 3,000 pieces of printing, about 30 to 50 pieces of paper are added and added to each plate (same as the upper machine sheet);

 Each printing plate has more than 3,000 printing plates, and each plate has a rate of approx. 5 ‰ to 10 加. The quantity is reduced, but it must not be less than 3000 印印.

2 binding and volume

Staple plus volume = (number of books × bookbinding plus rate × number of pages per book) / (single page opening number × 500)

Stapling rate:

 Single-page bookbinding rate is generally 5 ‰ to 15 ‰, and the quantity is greatly reduced;

 As many as 2000 copies were made, and less than 2000 were counted as 2000 copies.

Regarding the specific values ​​of the printing and releasing rate and the binding and release rate, different regions and different printing companies will set up the actual situation of the region and the unit. Ordinary single page (propaganda page, property advertisement, merchandise price list, postal advertisement, etc.) only considers wasted paper during the printing process; special single pages (books, magazines, covers and inserts, etc.) must consider the waste of paper during the printing process. , but also consider the waste of a single page binding process.

2 paper calculation

1) Formula

Unit price for each full-open paper = Full-open area x (quantitative/100) x (ton price/10000)

Area unit: square meter

Paper style = unit price for each full-open paper × number of orders × 500

2) Common paper area

787mm×1092mm: 0.86m2 (Positive paper)

850mm×1168mm: 1.0m2

880mm×1230mm: 1.08m2

889mm×1194mm: 1.06m2

841mm×1189mm: 1.0m2

1000mm x 1414mm: 1.4m2

In the actual printing and pricing practice, calculate the paper amount and paper size of the single-page offset printing machine, and also consider the relationship between the size of the finished product and the size of the upper machine, the size of the cutting edge, the relationship between the direction of the paper and the printing press, etc. . The use of paper and paper money calculations is more complex, and only the basic principles of calculating the amount of paper and paper are discussed here.

3 Bylaws

Positive 16-page manual, 128-character text (70 grams of offset paper), 4 color-inserted pages (double-sided color 4+4), 24,000 copies; four-color four-color sheet-fed offset press is used for reprinting, and other considerations are not considered. Hypothesis: The printing capacity is less than 3,000 plates per plate, plus about 40 plates per plate, each plate is more than 3,000 plates, each plate has an increase/decrease rate of about 5 inches, and the binding rate is 10 inches. With 80 grams of double copper, 8,000 yuan / ton. Seeking color inserts need paper money how much?

According to the question meaning to know:

1 Paper consumption

1) The amount of theoretical paper

Theoretical paper amount = single page number / (single page opening number × 500) = 24000 × 2 / (16 × 500) = 6 (order)

2) increase volume

1 printing and volume

1 / 16 × 4 = 1 / 4, then 48000 / 4 = 12,000 sheets (four sheets of paper), using a reprint printing requires four plates, 12,000 sheets of front side of the folio printing 12000 India each side, negative 12000 India, 24000 India, each edition is over 3,000 India, plus an increase rate of 5 miles.

Printing plus volume = (number of prints per print × print plus rate × number of plates) / (upper machine opening number × 500) = (24000 × 5 × 4) / (4 × 500) = 0.24 (order)

2 binding and volume

Staple plus volume = (number of books × number of staples plus x number of sheets per book) / (one sheet of opening x 500) = (24000 x 10 x 2) / (16 x 500) = 0.06 (instructions)

3 increase and release total

Add and release total = printing plus volume + binding plus volume = 0.24 + 0.06 = 0.3 (order)

3) Total paper consumption

The total amount of paper = the amount of paper used in theory + plus volume = 6 + 0.3 = 6.3 (order)

2 paper models

Positive 16 open, indicating the use of positive paper, full open area of ​​0.86m2, so

1) Each positive paper unit price

Unit price per sheet = paper area × (quantitative/100) × (tonne price / 10000) = 0.88 × (80 / 100) × (8000 / 10000) = 0.86 × 0.8 × 0.8 = 0.55 (yuan)

2) Paper models

Paper money = unit price per sheet × number of orders × 500 = 0.55 × 6.3 × 500 = 17325 (yuan)