Knowledge about printing paper: categories and specifications

A. The four most common paper specifications are as follows: (1) Positive Paper: Measuring 109.2 cm in length and 78.7 cm in width, it is commonly used for standard printing and official documents. (2) Large Size Paper: With a size of 119.4 cm long and 88.9 cm wide, this is ideal for larger formats like posters or banners. (3) Sticker Paper: This type is much larger, measuring 765 cm in length and 535 cm in width, and is typically used for large-scale stickers or labels. (4) Carbonless Paper: Available in both positive and generous sizes, it comes in three grades—upper, middle, and lower—each with different pricing. The price varies based on the quality and grade of the paper. B. Here are some of the most commonly used types of paper: (1) Copy Paper: Typically 17g, this paper is white and used for things like tax receipts and gift packaging. It’s known for its clean and professional look. (2) Typing Paper: At 28g, this paper is often used for forms and official documents. It comes in seven colors—white, red, yellow, blue, green, light green, and purple. (3) Glossy Paper: Ranging from 35-40g, one side is shiny and the other is matte. It's commonly used for low-grade printing, such as flyers or notes. (4) Writing Paper: Available in 50-100g, it has a larger size and is suitable for basic printed materials. It is widely used domestically due to its affordability. (5) Double Offset Paper: This ranges from 60-180g and is commonly used for mid-range printing in China. It's also popular in joint ventures and imported products. (6) Newsprint: A lightweight paper, usually 55-60g, and it's often used for newspapers and low-cost publications. (7) Carbonless Paper: Available in 40-150g, it has a double-sided positive finish and allows for direct copying without carbon paper. It is divided into upper, middle, and lower grades, each with different prices and uses. It comes in seven colors and is often used in multi-part forms. (8) Art Paper: - Double Copper: Available in 80-400g, this high-quality paper is used for premium printing, such as magazines or brochures. - Single Copper: Often used for cartons, boxes, handbags, and pill boxes, it offers a smooth and glossy surface. (9) Sub-powder Paper: Ranging from 105-400g, it provides an elegant appearance and is ideal for high-end color printing. (10) White Paper with Gray Background: Over 200g, this paper has a gray coating on a white background and is often used for packaging and decorative items. (11) White Cardboard: 200g thick, it is double-sided white and used for mid-range packaging solutions. (12) Kraft Paper: Available in 60-200g, it is strong and durable, often used for packaging, cartons, document bags, and envelopes. (13) Special Paper: Usually imported, it is used for high-end applications such as covers, decorations, crafts, and luxury products. This comprehensive list helps users choose the right paper based on their needs, whether for everyday use, commercial printing, or special projects.

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