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**PART 01: Common Paper Types**
- **Coated Paper**:
- Grammage: 80g–400g
- Usage: Also referred to as coated printing paper. The surface is coated with a layer of white pigment and adhesive, followed by supercalendering. It features whiteness and a smooth surface. Depending on the application, it can be single-sided or double-sided coated (single copper or double copper). The typical grammage ranges from 70g/m² to 150g/m², with some double-sided coatings reaching up to 180g/m²–250g/m². Applications include brochures, picture albums, covers, postcards, business cards, handbooks, and color labels (stickers). Available in both single-sided and double-sided coatings, as well as matte finishes.
- **Cardstock**:
- Grammage: 175g–450g
- Usage: Includes white cardstock, gray cardstock, gold cardstock, and silver cardstock. Widely used for packaging color boxes and other needs. The higher the grammage, the better the load-bearing capacity.
- **Book Paper**:
- Grammage: 60g–100g
- Usage: Commonly used for manuals, book pages, brochures, coupons, and other simple paper products.
- **Kraft Paper**:
- Grammage: 80g–300g
- Usage: Used in the production of corrugated boxes or packaging materials.
**PART 02: Printing Terminology**
- **Bleed**: Refers to the edges of printed matter that are intended to be cut off after printing. This ensures no white borders remain in the final product.
- **Imposition**: The process of arranging individual pages or layouts into a format suitable for the size of the printing machine, paper dimensions, and binding requirements.
- **Folio**: Indicates the size of the book format, i.e., how many pages a full-size printing sheet is divided into.
- **Overprint**: Printing one color block over another. Special attention must be paid to overprinting black text on color images.
- **Solid Area**: A color block without halftone dots, typically referring to full-plate coverage.
- **Missing White**: Occurs when multiple colors are misaligned during printing, resulting in visible white edges between connected colors.
- **Color Separation**: The process of breaking down a color image into its monochromatic components for printing.
**PART 03: Printing Techniques**
- **Four-Color Printing**: Utilizes cyan (C), magenta (M), yellow (Y), and black (K) inks. These four inks can mix to produce all colors, forming graphic colors.
- **Spot Color Printing**: Uses special inks to print specific colors during the printing process.
- **Screen Printing**: Creates a screen printing plate using a photosensitive process, enabling detailed image reproduction.
- **Lamination**: Applies transparent plastic film to the surface of printed matter via heat pressing, enhancing protection and gloss (options include glossy, matte, and premium touch films).
- **UV Varnish**: A transparent liquid made from ultraviolet photosensitive resin, photoinitiator, active monomer, and additives. Cured by UV radiation, it enhances surface durability.
- **Embossing/Debossing**: Carves images onto metal plates and presses them onto paper, creating raised or recessed textures.
- **Flocking**: Applies a layer of adhesive and fluff material to the print surface, producing a velvet-like texture.
- **Hot Foil Stamping**: Uses heat and pressure to transfer metallic foil onto printed matter, adding decorative effects.
- **Die Cutting**: Cuts printed matter into desired shapes using custom dies, often applied in packaging and promotional materials.
- **Folding**: Involves folding printed sheets into various configurations, such as half-folds, accordion folds, etc.
- **Creasing**: Prevents cracking in thick or brittle paper by pre-scoring fold lines.
- **Perforation**: Adds dotted lines or perforations for easy tearing, commonly used in coupons, tickets, and receipts.
- **Punching**: Creates holes in printed matter according to design specifications, frequently seen in tag printing.
- **Numbering**: Assigns sequential numbers to documents like receipts, tickets, and contracts using automatic numbering equipment.
- **Mounting**: Bonds two sheets of different materials together using adhesive, forming a new composite material.
- **Scratch-Off Ink**: Covers sensitive information (e.g., passwords on lottery tickets) with ink that can be easily scratched off.
- **Drip Plastic**: Applies thermoplastic polymers to create a crystal-clear convex effect on printed surfaces, often used in notebook printing and packaging decoration.
**PART 04: Binding Techniques**
- **Saddle Stitching**: A concise and widely used binding method suitable for thinner books (e.g., 20 pages, 28 pages, 32 pages, 40 pages). Note: Page counts must be even.
- **Perfect Binding**: Combines folded pages with a cover using wire or thread, suitable for general books.
- **Wire-O Binding**: Avoids issues like degumming and page loss common in wireless binding, ideal for thicker books like dictionaries and textbooks.
- **Wireless Adhesive Binding**: Primarily used for adhesive-bound paper products such as product manuals, novels, and teaching books.
- **Loose-Leaf Binding**: Includes hot melt sealing, ring binding (iron, spiral, rubber), Wille, steel ridge, and plastic pipe riveting, among others.