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Printing, an ancient craft that remains widely utilized in our daily lives today, relies heavily on printing paper as a critical carrier. This paper comes in various types, each with distinct characteristics. Below, we delve into the fascinating world of printing paper and uncover its intricacies.
Paper books, which use paper as their medium, provide a unique and immersive reading experience for countless enthusiasts. This sensation is unmatched by e-books or e-ink screens. In the production of paper books, paper serves as the core material. While eight commonly used types of paper have been introduced, the diversity of printing paper extends far beyond these. Let us explore additional types of printing paper together and assess how many you can identify.
Cellophane
A film-like product crafted from natural fibers such as cotton pulp and wood pulp through adhesive methods, cellophane exhibits transparency, non-toxicity, and an odorless nature. Due to its excellent barrier properties, air, oil, bacteria, and water struggle to penetrate it, making cellophane ideal for food packaging. Through specialized processes, such as applying moisture-proof coatings on one or both sides followed by drying and moisture adjustment, moisture-proof cellophane can be produced, further enhancing its protective capabilities.
The molecular chain design of cellophane grants it subtle breathability akin to the micro-pores in an eggshell, allowing the product to "breathe" freely. This is highly advantageous for preservation and maintaining vitality. Additionally, cellophane demonstrates strong resistance to oil, alkalinity, and organic solvents. It does not generate static electricity, preventing dust attraction and preserving the purity of the paper. Notably, due to its composition of natural fibers, cellophane can absorb water and decompose naturally in waste, making it environmentally friendly and pollution-free.
Cellophane's transparency allows clear visibility of contents. It also possesses multiple properties, including moisture-proofing, water impermeability, slight breathability, and heat-sealability, providing comprehensive protection for goods. Compared to ordinary plastic films, cellophane offers advantages such as being static-free, dust-resistant, and having excellent crease resistance. Its color options are extensive, ranging from white, colored, to semi-transparent films, meeting diverse packaging needs.
Kraft Paper
This multifunctional packaging material is renowned for its exceptional strength and yellowish-brown appearance. After semi-bleaching or full bleaching treatment, its pulp can present tones such as light brown, cream, or white. Kraft paper excels in tear resistance, breaking energy, and dynamic strength, often appearing in roll or sheet form to meet varied usage requirements. Made from sulfate coniferous wood pulp processed through pulping and fine papermaking using long-wire paper machines, kraft paper has become an indispensable part of our lives. It plays a crucial role in fields such as chemical engineering, machinery, and even food packaging. Despite numerous factors in the production process affecting paper color-such as raw material sources, production batches, seasons, and machinery-the products within the same batch maintain up to 98% color consistency.
Calcium Plastic Paper
A novel material combining the appearance of paper with the durability of plastic, calcium plastic paper is crafted through meticulous techniques. It integrates calcium carbonate and polyolefin resin, along with additives like foaming agents, crosslinking agents, mold release agents, and stabilizers. After high-temperature kneading, rolling, stretching, and flattening, this innovative paper is formed.
Visually similar to ordinary paper, calcium plastic paper differs significantly in performance. It resists water immersion, does not absorb moisture, and exhibits excellent burst resistance and tear resistance. Its good ink penetration makes it highly suitable for coating processing and color registration printing. Calcium plastic paper demonstrates excellent chemical stability, resisting water, moisture, heat, and fire erosion while being difficult to ignite.
Calcium plastic paper finds extensive use and can be processed into various forms, such as coated paper, tracing paper, and cardboard. It is often used for printing calendars, certificates of award, label cards, and other printed materials. It can even be made into lightweight calcium-plastic corrugated cartons for transporting fresh products requiring moisture-proofing and oil-proofing, such as frozen foods, dried and fresh fruits, and soaps.
Cast Coated Paper
A specially processed paper, cast coated paper involves pressing base paper coated with specific paint onto a heated, highly polished chrome-plated drying cylinder. After drying, it is peeled off to form paper with high gloss and smoothness. This paper not only boasts excellent ink absorption and superior printability but also presents bright and beautiful printing effects. Its decorative effect surpasses that of coated paper, making it widely used in high-end art pictures, book covers, color advertisements, and self-adhesive trademarks. Due to its mirror-like surface, it is also called glass cardstock.
Cast-coated paper is primarily divided into two categories: cast-coated white board and thin cast-coated paper. Cast-coated white cardboard, made from white cardboard and undergoing casting and coating processing, possesses excellent physical strength, appearance, and printable adaptability. It meets creasing and folding requirements during box-making, ensuring no cracking of the coating when folded. Based on different base pastes, cast-coated white cardboard can be classified into white base and gray base types. It is commonly used for medium and high-end packaging boxes of printed products, such as medicine and cosmetic packaging boxes. Its elegant appearance enhances product market competitiveness. Thin cast-coated paper is mainly used in high-end printed materials, art cards, book covers, and self-adhesive trademarks. It can also be made into various greeting cards and invitations through embossing and gilding processes.
Xuan Paper
A unique product originating from Jing County, Xuancheng City, Anhui Province, Xuan paper has been presented as tribute to the imperial court since the Tang Dynasty, highlighting its profound cultural heritage. Using sandalwood bark as the primary raw material, it undergoes lime treatment, solar bleaching, and meticulous pulping and papermaking processes to produce high-quality Xuan paper. After the middle of the Ming Dynasty, Sha Tin rice straw was incorporated into the raw materials, optimizing the flexibility and ink retention of the paper, making it more suitable for calligraphy and painting. By the Qing Dynasty, Xuan paper generally used a mixture of sandalwood bark and Sha Tin rice straw, further enhancing its quality.
Xuan paper has garnered favor among calligraphers and painters for its soft yet tough texture, pure grain, excellent ink moistening property, and resistance to insect damage and decomposition. Its unique selection of raw materials and exquisite processing techniques have earned it the title of "thousand-year-old paper." It can be preserved for extended periods without rotting or insect damage, making it an ideal choice for calligraphy and painting creation as well as ancient book printing.
Wax Gloss Paper
Waxed paper, a uniquely coated processing paper, is renowned for its brilliant colors or exquisite patterns coated on one side. Its surface exhibits extremely high gloss, vibrant and eye-catching colors, and excellent water resistance. The production process of this paper originates from ancient waxing and polishing techniques, hence its name, wax-polished paper. It comes in a wide variety of types and can be categorized into three major color groups: dark, medium, and light, covering multiple hues such as bright red, orange red, and deep blue. Additionally, there are special process varieties like engraved wax gloss and embossed wax gloss, totaling dozens of types.
Waxed paper finds broad application in the commercial field, such as printing product labels, exquisite outer packaging, and window displays. It is also an ideal choice for advertising graphic designers, suitable for poster promotion and product introduction sheets. In handicraft making, waxed paper performs admirably and is often used in producing paper lanterns, paper flowers, paper carvings, and paper toys.
Earth Sheet
Earth sheet paper, processed with a unique technique, attracts attention for its distinctive concave-convex texture. This texture evokes a tactile connection with nature, offering a distinct sensory experience. Its rough yet refined texture results from mixing linen products and raw pulp, forming a cotton-like structure, which is unique.
Earth sheet paper finds extensive application in bookmaking, often used as book covers or interlinings, adding a unique charm. It can also be crafted into small items like bookmarks and cards, bringing a touch of unique pleasure to reading time. For specially designed books, large sheets of paper serve as key elements enhancing the overall book aesthetic. During the printing process, its low color distortion and compatibility with hot stamping treatment further enhance the overall design aesthetics.
High-Order Fine Grid
The high-end fine grid stands out for its light and delicate overall texture. Thanks to unique coating technology, the paper presents a bright inked portion and a matte uninked portion after printing, complementing each other beautifully. Remarkably, it simultaneously possesses dual advantages of fade resistance and vibrant colors without special treatment.
The meticulously designed fine grids on its surface add a three-dimensional effect to images and greatly enrich the expressiveness of printed matter. Additionally, the high-end fine grid features excellent abrasion resistance, tear resistance, and outstanding texture, ensuring high-quality printing results. When printing graphic and textual works with rich and delicate colors, it demonstrates unique advantages.
Cotton Paper
Cotton paper, made from long fibers, exhibits outstanding loose thickness and a soft touch, making it highly suitable for concave-convex technique production. During the manufacturing process, various natural materials such as tree bark and wild plant peels are added, enhancing its overall texture. Consequently, cotton paper is not only tough and durable but also possesses multiple properties, including breathability, anti-bug, anti-corrosion, moisture absorption, and moisture-proofing.
