[Chinese Packaging Network News] To understand the printing process, it's essential to first grasp the fundamentals of printing, such as paper units, paper specifications, pricing formulas, and techniques. In this article, we'll walk you through the basic knowledge of printing that every beginner should know.
1. Paper Units:
A. g (grams): This refers to the weight of one square meter of paper. The formula is: (length × width) ÷ 2 = grams.
B. Ream: A ream consists of 500 sheets of paper, commonly used in factories for standard measurements.
C. Ton: 1 ton equals 1000 kg, often used for calculating costs in large-scale printing projects.
2. Paper Sizes and Names:
The most common paper sizes are:
(1) A4 (Positive Paper): 109.2 cm long by 78.7 cm wide.
(2) A3 (Large Paper): 119.4 cm long by 88.9 cm wide.
(3) B4 (Stickers): 76.5 cm long by 53.5 cm wide.
(4) Carbonless Paper: Available in both positive and generous sizes, with different weights and colors, each with its own price.
Common types of paper include:
(1) Copy Paper: Typically 17g, used for tax invoices and gift packaging, usually pure white.
(2) Typing Paper: 28g, used for single orders. It comes in seven colors: white, red, yellow, blue, green, light green, and purple.
(3) Glossy Paper: 35-40g, used for single-sided prints, forms, and notes, suitable for low-grade printing.
(4) Writing Paper: 50-100g, used for low-grade prints, commonly found in domestic markets.
(5) Shuangjiao Zhi: 60-180g, used for mid-range prints, popular in China, joint ventures, and imported products.
(6) Newsprint: 55-60g, a type of roller paper used for newspapers.
(7) Carbonless Paper: 40-150g, features a direct copy function, divided into top, middle, and bottom papers. Prices vary based on size and color, often used for single or form printing.
(8) Coated Paper:
- Double Copper: 80-400g, used for high-quality printing.
- Single Copper: Used for boxes, cartons, and handbags.
(9) Sub-powder Paper: 105-400g, ideal for elegant and high-end color printing.
(10) Gray-white Paper: 200g or more, used for packaging.
(11) White Cardboard: 200g, double white, used for mid-range packaging.
(12) Kraft Paper: 60-200g, used for packaging, cartons, portfolios, and envelopes.
(13) Specialty Paper: Often imported, used for covers, decorations, handicrafts, and fine products.
3. Quotation Formulas and Techniques:
A. Quotation Formula:
(1) Weight (length × width ÷ 2) = law: abundance 0.531, weight 0.43.
(2) Calculation Method: Weight (law) × grams × ton price ÷ 500 sheets × opening number × print quantity × 1.1% loss = total paper cost.
Example 1: A customer printed 5000 large 16 open, 157g double copper. How much is the paper cost?
Formula: 0.531 × 157g × 7500 RMB ÷ 500 ÷ 16 × 5000 × 1.1% = 430 RMB.
Example 2: A customer printed 8000 large 16 open 80g offset paper. What is the cost?
Formula: 0.531 × 80g × 6500 ÷ 500 ÷ 16 × 8000 × 1.1% = 304 RMB.
Example 3: A customer printed 70 instructions: how much does the cover use 60g home-made paper with 20 positive 16-sheet paper?
Formula: 0.43 × 60g × 5500 ÷ 500 ÷ 16 × (70 × 20) × 1.1% = 273 RMB.
Example 4: A customer printed 50,000 plastic 4×5cm fillets. How much paper is needed?
Formula: 0.002 × customer square cm × print number = paper.
0.002 × 20 (4×5cm) × 50,000 = 0.04 (Total Paper).
Example 5: A customer printed non-carbon paper singles: 200 request 16 open, two, three, four, five. How much paper is needed?
Formula: Double 3.43, Triple 3.93, Quadruple 4.19, Five 4.34.
Coupling law × number = paper money.
Double: 686, Triple: 786, Quadruple: 838, Five: 868.
Example 6: A customer printed 1000, 100, and 9 standard envelopes No. 2, No. 5, No. 6, No. 7, and No. 9 with 100g offset paper. What are the specifications, opening counts, and paper prices?
Specifications:
No.2: 11×18cm, 15 open (cut paper size 26×21)
No.5: 11×22cm, 12 open (cut paper size 26×24)
No.6: 12×23cm, 12 open (cut size 27×26)
No.7: 16×23cm, 8 open (cut paper size 39×27)
No.9: 23×32cm, 4 open (cut sheet size 39×54)
Formula: 0.43 × 100g × 6500 RMB ÷ 500 ÷ opening number × print number × 1.1% = paper price.
1000 media paragraph:
No.2: 41 yuan
No.5 & No.6: 51 yuan
No.7: 77 yuan
No.9: 154 yuan
Example 7: A customer prints 16 open. What is the price of 28g for a single triple 100?
Formula: 1.39 × print number = paper money (139 yuan).
These examples illustrate common scenarios, though some may require further discussion with business executives.
B. Tips:
(1) Observe the customer's needs and the printing requirements carefully.
(2) Measure sample specifications, paper quality, and prepress/postpress procedures accurately.
(3) Use a calculator to calculate costs and profits precisely.
(4) Set a competitive price—neither too high (to match the customer’s expectations) nor too low (to remain below competitors).
(5) Negotiate based on rationale and arguments, such as paper quality, film type, printing standards, delivery time, and machine quality.
(6) Maintain a professional, polite, honest, and responsible attitude.
After reading this article, did you gain new insights? For more information, stay tuned to Chinese Packaging Network!
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