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Introduction to paper used for color boxes

Color Box Paper: Coated Paper Coated paper, made by coating base paper, has excellent optical and printing properties. Used for magazines, books, trademarks, packaging, catalogs, etc. While global names vary, domestic standards include newsprint, dictionary paper, copperplate paper, cast-coated paper, offset printing paper, offset book paper, writing paper, single-sided writing paper, book cover paper, and corrugated medium.
Oct 2nd,2025 142 Views
Introduction to paper used for color boxes
     1. Coated paper
    The so-called coated paper is produced by applying a layer of coating material on the base paper, endowing the paper with excellent optical properties and printing performance. It is primarily used for printing publications such as magazines and books, as well as trademarks, packaging, and product catalogs.
     The names of these products vary across countries, but some of them have been standardized domestically. Among them, the more commonly used ones include newsprint, dictionary paper, copperplate paper, cast-coated paper, offset printing paper, offset book paper, writing paper, single-sided writing paper, book cover paper, corrugated medium, cardboard, kraft paper, striped kraft paper, mika paper, white kraft paper, single-sided white board, single-sided coated white board, cast-coated white board, and thick board. For imported products that do not have official names in China or newly developed products domestically, they can be named based on their purposes or characteristics. Due to geographical differences, Hong Kong and the mainland use varying names for these products. Table 1-9 lists some of these names for reference.
     Table 21 Comparison Table of Paper Product Naming in Hong Kong and the Mainland

Hong Kong Specific Restrictions Mainland China
Book Paper - Grammage: 60 - 150 g/m², specially for offset presses to print color pictorials, pictures, illustrations, covers, trademarks, etc. Low-grammage paper is mostly used for printing the text of books and periodicals
- Grammage: 45 - 80 g/m², mainly for writing in daily life, and also for printing and typing
Offset Paper
Writing Paper
Colored Book Paper - Grammage: 45 - 80 g/m², mainly for writing in daily life, and also for printing and typing
- Grammage: > 80 g/m²
Colored Writing Paper
No corresponding name yet
Art Paper Coated Paper
Matt Art Paper Matt Coated Paper
Double-sided Art Paper Double-sided Coated Paper
Copperplate Board Coated White Cardboard
Hong Kong Specific Restrictions Mainland China
White Cardboard - White top (made from bleached chemical pulp), white bottom (made from bleached chemical pulp), white core or light yellow core
- White top (made from bleached chemical pulp), white bottom (made from bleached chemical pulp), white core or light yellow core, surface coated
- White top (made from bleached chemical pulp), white bottom (made from bleached chemical pulp), gray core (made from waste paper pulp)
- White top (made from bleached chemical pulp), white bottom (made from bleached chemical pulp), gray core (made from waste paper pulp), single - side coated
- White top (made from bleached chemical pulp), gray bottom (made from waste paper pulp), gray core (made from waste paper pulp)
- White top (made from bleached chemical pulp), white bottom (made from bleached chemical pulp), gray core (made from waste paper pulp), single - side coated
- White top (made from bleached chemical pulp), yellow bottom (made from unbleached sulfate wood pulp, or with added waste paper pulp, or all waste paper pulp), single - side coated
- White top (made from bleached chemical pulp), yellow bottom (made from unbleached sulfate wood pulp, or with added waste paper pulp, or all waste paper pulp), surface coated
White Cardboard
Coated White Cardboard
White - bottom White Board, referred to as White Board
Single - side Coated White - bottom White Board, referred to as Single - side Coated White Board
Gray - bottom White Board, referred to as White Board
Single - side Coated Gray - bottom White Board, referred to as Single - side Coated White Board
White - faced Straw Board
White - faced Coated Straw Board
Single - side Adhesive Board Core is white or light yellow
Gray core (made from waste paper pulp)
Single - side Coated White Cardboard
Single - side Coated White Board
Double - side Adhesive Board Double - side Coated White Cardboard
Powder - gray Board Single - side Coated Gray - bottom White Board
Gray Bottom/
Double - gray Board
Gray Board
Kraft Paper Grammage: 40 - 120 g/m², high - grade wrapping paper, high strength, used for packaging goods or further processing to make files, document bags, envelopes, etc. (100% unbleached sulfate softwood pulp as raw material, or proportioned with a certain amount of other pulp)
Specially used as the top layer paper for laminating with corrugated core paper to make corrugated cardboard
If adding more waste pulp or using all waste paper pulp, low strength, used for packaging goods
Kraft Paper
Straw Board (no clear statement for low grammage)
Wrapping Paper
Kraft Board Straw Board
Powder - faced Board White - faced Coated Straw Board
Core Paper Corrugated Medium
Glass Card Cast Coated Paper
Corrugated Paper Corrugated Paper
Corrugated Board Corrugated Board
continued Table
Hong Kong Specific Restrictions Mainland China
White Cardboard - White top (made from bleached chemical pulp), white bottom (made from bleached chemical pulp), white core or light yellow core
- White top (made from bleached chemical pulp), white bottom (made from bleached chemical pulp), white core or light yellow core, surface coated
- White top (made from bleached chemical pulp), white bottom (made from bleached chemical pulp), gray core (made from waste paper pulp)
- White top (made from bleached chemical pulp), white bottom (made from bleached chemical pulp), gray core (made from waste paper pulp), single - side coated
- White top (made from bleached chemical pulp), gray bottom (made from waste paper pulp), gray core (made from waste paper pulp)
- White top (made from bleached chemical pulp), white bottom (made from bleached chemical pulp), gray core (made from waste paper pulp), single - side coated
- White top (made from bleached chemical pulp), yellow bottom (made from unbleached sulfate wood pulp, or with added waste paper pulp, or all waste paper pulp), single - side coated
- White top (made from bleached chemical pulp), yellow bottom (made from unbleached sulfate wood pulp, or with added waste paper pulp, or all waste paper pulp), surface coated
White Cardboard
Coated White Cardboard
White - bottom White Board, referred to as White Board
Single - side Coated White - bottom White Board, referred to as Single - side Coated White Board
Gray - bottom White Board, referred to as White Board
Single - side Coated Gray - bottom White Board, referred to as Single - side Coated White Board
White - faced Straw Board
White - faced Coated Straw Board
Single - side Adhesive Board Core is white or light yellow
Gray core (made from waste paper pulp)
Single - side Coated White Cardboard
Single - side Coated White Board
Double - side Adhesive Board Double - side Coated White Cardboard
Powder - gray Board Single - side Coated Gray - bottom White Board
Gray Bottom/
Double - gray Board
Gray Board
Kraft Paper Grammage: 40 - 120 g/m², high - grade wrapping paper, high strength, used for packaging goods or further processing to make files, document bags, envelopes, etc. (100% unbleached sulfate softwood pulp as raw material, or proportioned with a certain amount of other pulp)
Specially used as the top layer paper for laminating with corrugated core paper to make corrugated cardboard
If adding more waste pulp or using all waste paper pulp, low strength, used for packaging goods
Kraft Paper
Straw Board (no clear statement for low grammage)
Wrapping Paper
Kraft Board Straw Board
Powder - faced Board White - faced Coated Straw Board
Core Paper Corrugated Medium
Glass Card Cast Coated Paper
Corrugated Paper Corrugated Paper
Corrugated Board Corrugated Board
2. Pitch paper
"Jiankeng paper" refers to corrugated cardboard without top sheets, allowing the corrugated pattern to be visible. It is generally a semi-finished product that needs to be processed with another material mentioned above to become cardboard. There are various types of "Jiankeng paper", including single-corrugated "Jiankeng paper" (see Figure 1-9), double-corrugated "Jiankeng paper" (see Figure 1-10), and triple-corrugated "Jiankeng paper". The commonly used single-corrugated types include E-corrugated and B-corrugated, such as A9, A3, K3, etc. The commonly used double-corrugated types include BC-corrugated and AB-corrugated, such as A3A3, K3A3, etc. The top sheets are generally copperplate paper or coated paper, with patterns printed on them. They are processed together with the "Jiankeng paper" using the lamination process, which involves bonding them together with glue. There are automatic lamination and manual lamination methods.

Figure 13 Single-pit paper

Figure 14 Double-pit paper
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