What is the principle of the law of weight, length, width and 2

Ashamed! After more than 30 years of work, I have never heard of the "Law of Printing Paper".

144 divide by divide by 6 what law do you find 144 2 = 72144 4 = 36144 6 = 24 The dividend does not change, how many times does the divisor expand. The quotient is reduced by the corresponding multiple.

**Formula:

1).Weight (length and width 2) = law: large weight, positive weight.

2).Calculation method: weight (law) grams ton price 500 sheets number of openings number of prints loss = total paper payment.

Example 1: There is a customer who prints 5,000 large 16 open sheets, 157 double copper, how much is the paper?

Formula: Weight Grams Ton Price 500 Sheets Number of Openings Number of Prints The total paper price sought.

g 7500 yuan 500 sheets 16 open 5000 pieces yuan (total price of paper).

Example 2: How much does a customer ask for to print 8,000 large 16-open 80-gram double-offset paper?

Formula: g 6500 500 sheets 16 open 8000 sheets yuan (total price of paper).

Example 3: A customer prints 700 manuals: including 60 grams of domestic paper for the cover, each book uses 20 sheets of positive 16 open paper, how much is the amount of paper?

Formula: Weight Grams Ton Price 500 Sheets Number of Openings Number of Prints The total paper price sought.

g 5500 yuan 500 sheets 16 open print run (70 copies 20 sheets) yuan.

Example 4: A customer prints 50,000 4 5cm fillet corners of self-adhesive and asks how much paper is used?

Formula: The law of customer square centimeter Number of prints = paper paragraph.

= yuan (total paper payment).

Example 5: A customer prints 200 copies of carbonless paper and asks for 16 open two copies. Triple. Quadruple. How much paper is a five-link?

Formula: Two-upper, three-pupping, four-linked, five-upper.

The law of contingency number = the total amount of paper.

Two: 686 yuan, three: 786 yuan, four: 838 yuan, five: 868 yuan.

Example 6: There is a customer printing No. 2. Number 5. Number 6. Number 7. No. 9 standard envelopes of 1000 pieces each with 100 grams of double offset paper, ask for each specification. Open. What is the price of paper?

Law: aFinished product specifications:

No. 2: 11 18cm 15 carat (cut paper specification 26 21).

No. 5: 11 22cm 12 open (cut paper size 26 24).

No. 6: 12 23 cm 12 open (cut paper specification 27 26).

No. 7: 16 23 cm 8 open (cut paper size 39 27).

No. 9: 23 32 cm 4 open (cut paper size 39 54).

Law: Gram number: 100 tons, price 6500 yuan, 500 sheets, number of openings, number of prints, paper price.

1000 paper sections:

No. 2: 41 yuan.

Number 5. No. 6: 51 yuan.

No. 7: 77 yuan.

No. 9: 154 yuan.

Example 7There is a customer printing 16 open. What is the price of each paper for 100 copies of 28 grams triptych?

Law: print run = paper (139 yuan) (32 open 28 open 2).

The above example questions are common examples, and if they are not common, you can ask the business manager to answer them.

I heard that the calculation method of printing ** will involve many things, such as the printed paper, the printing process, the size of the finished product, how to typeset, what kind of printing press and so on. It's not like a formula or a few sentences can be explained, I'm also learning!

Paper = length and width (m) grams (kg) ton price (thousand yuan) print loss loss.

Today's students are so lazy! Estimated for the exam, you are going to hang the drop!

A 1Electrical fractions.

2.Flat type, drum type.

ai, co, output 5Laser printers, inkjet printers, laser imagesetters.

6.Laser phototypesetting machine.

7.aluminum plate, photosensitive film; **, developing, dirty, baking, developing ink, gluing 8Baked version.

II. 1According to the type of printing plate:

Press the form of stamping:

According to the number of printing colors.

According to the printing format.

According to the number of printing surfaces.

By paper form.

2.Paper classification is wider: to name a few, newsprint, offset book paper, coated paper, etc., the temperature and humidity of the printing factory workshop are controlled at temperature: 18-24 degrees, humidity: 60%--65%.

3.According to the printing process: letterpress ink, gravure ink, lithographic offset printing ink, screen ink according to the type of drying: penetration drying, volatile drying, oxidation conjunctival drying, UV drying 4Three Qin, three small, three Ping, three Heng, 5--8.Due to space limitations, I will not answer here.

III 1Varnishing machine, laminating machine, hot stamping machine, molding machine, development linkage machine, etc. 2Folding, ordering, and cutting.

3.In addition to folding, binding, and cutting, it is mainly the three major processes of book block processing, book case making and book case 4Glazing, laminating, broiling, embossing, 5Due to space limitations, I will not answer here.

1-1 **Information can be obtained by scanning and text input.

1-2 Scanners can be flatbed and roll.

1-3 ……The main software is CorelDraw, IllustRator, InDesign, etc.

1-4 Good documents are output by RIP software.

1-5 Output equipment includes printers, digital proofing machines and film machines.

1-6 The film is output by the film producer.

The 1-7 ps plate is composed of iron sheet and medicated film, and the part covered by the film film cannot be exposed to light when the plate is illuminated, and the part that is not covered is **, and then rinsed by the developer to obtain the pattern.

1-8 ps plates can be baked to increase resistance to India (I only learned this method two days ago).

2-1 The printing machine can be divided into four starts, two starts, and full-sheet machines (of course, there are six open and eight open machines for small ones).

2-2 The paper generally includes coated paper, double offset paper, single white card, gray background white board, white background white board, etc. In order to prevent the paper from expanding and shrinking during printing and post-pressing, constant temperature and humidity are required in the workshop, which can be adjusted by air conditioners and humidifiers.

2-3 Ink, unclear, offset printing inks are almost the same, like flexographic printing to use different types of ink.

2-4 It takes experience to control the balance of ink and water, because if there is less water, the ink will be pasty, and if there is more water, the color will be empty, and there will even be a watermark.

2-5 Generally speaking, black should be printed last, because in many places black letters are pressed on top of other colors. But this is not absolute, even if it is the same factory, there will be different color sequence requirements for different prints.

2-6 2-8 It has nothing to do with space, I really don't know.

3-1 Post-press processing mainly includes paper cutting machine, die-cutting machine (including rolling knife and hot stamping), laminating machine, glazing, local glazing (UV, with screen printing machine), laminating machine (paper and paper, or paper and corrugated), automatic folder gluer, folding machine, saddle nail (linkage machine), cover machine, coding machine (bills and other serial numbers), etc.: all of the above are available in our company.

3-2 Folding, clipping, saddle nails (or plastic wrapping).

3-3 Folding, clipping, cover making (hard shell), book case.

3-4 Mainly refers to carton products: die-cutting, corrugated (according to the actual situation), pasting boxes, and some may be laminated or varnished in advance.

Graphic design Commonly used sizes.

Trifold ads.

Standard Size: (A4) 210mm x 285mm Plain Brochure.

Standard Size: (A4) 210mm x 285mm Document Envelope.

You can really figure out these questions enough for you to study for at least 8 years, provided that you are in a printing school.

If you are from the School of Printing, call Senior Brother Sheng to invite me to dinner and I will teach you.

The scanner is an important tool to input various forms of information into the computer, from the most common, film, to all kinds of drawings and graphics and all kinds of manuscripts, and then the scanner can be used to input into the computer, so as to realize the processing, management, use, storage, output operation of the information in the form of these images. At present, scanners have been widely used in many fields such as graphic image processing, publishing, printing, advertising production, office automation, multi-index, database, communication, engineering drawing input, etc., which have greatly promoted the technological progress in these fields and even revolutionized the way of working in some fields. Especially with the advent of the era of multi-professional information network, the application field of scanners is gradually expanding, whether it is in office applications, home entertainment, multi-professional production, Internet applications and other fields.

If you buy a book and fill it in, you won't get any points from him.

1 Printing Press:

According to the printing plate, it is divided into flat, concave, convex and stencil printing.

According to the printing method, it is divided into circles and flattened.

2 Paper: A3 A4 A8 A16 A32....

Temperature and humidity depend on the requirements of the printing process, each printing method has its own requirements, such as lithographic offset printing using the principle of ink and water balance, and the paper must be treated with water before printing.

The problems are all common sense in printing, which is too cumbersome.

A number divided by multiple numbers consecutively is equal to the product of this number divided by these numbers.

Division is one of the four operations. The product of two factor weights and one of the non-zero factors is known, and the operation of finding the other factor is called division.

The division of two numbers is also called the ratio of two numbers. If ab=c(b≠0), the operation of finding another factor a using the product c and the factor b is division, written as c b, which is read as c divided by b (or b divided by c). where c is called the dividend, b is called the divisor, and the result a is called the quotient.

The law of union is correct.

a b c = a b · c) just like the associative law of addition and subtraction.

a - b - c = a - b + c)

You're good to copy.,Personally, I think it's a derivation of bai.。

First of all, put the left side of the formula.

dua b is seen as a whole and is written as a fraction dao in the form (a b) divided by c, i.e., the reciprocal of multiplying c.

The one on the right is seen as the reciprocal of A divided by BXC.

I won't score it.,If it's convenient, try it according to my ideas.,Thank you!

Easy calculation of continuous division.

This is the knowledge of the four mixed operations, and in this chapter there are the law of addition commutative, the law of addition combination, and multiplication.

The commutative law of weight, the associative law of multiplication, the distributive law of multiplication, the simple calculation of continuous subtraction, and the simple calculation of continuous division However, it is a bit reliable to say that it is associative law.

Procedure: A b c=ax1 bx1 c=ax1 (bc)=a (bxc).

In teaching, as long as the student masters this simple calculation of continuous division and can use this property to solve the problem. As for the principle or how to get it, it doesn't need to be mastered by the fourth graders.

This can be said to be the associative law of division!