China Black Cardboard - High-Quality 70gsm to 250gsm | A4, A3 Sizes | Reliable Suppliers & Factory
The most prominent feature of black cardboard is its exceptional stiffness and thickness. For products with high grammage, the longitudinal stiffness can exceed 300mN·m, far superior to ordinary paper, enabling it to maintain a stable shape after molding without easy deformation or collapse. It also boasts outstanding folding resistance and bursting strength; with tightly interwoven fibers, it can withstand dozens of repeated folds without tearing, ensuring durability in both manual cutting and mechanical processing.
Most black cardboard adopts pulp dyeing technology, available in solid black (both sides) or single-sided black variants. The uniform, deep color features excellent color fastness, preventing fading or whitening under long-term light exposure or storage. Its matte surface provides superior light shielding, ideal for photography backdrops and light-shielding product packaging.
In line with global eco-trends, recycled pulp black cardboard realizes resource recycling, while virgin wood pulp black cardboard complies with international standards such as FDA and REACH, making it suitable for safe packaging in food, electronics, and other industries.
Large-format 4K and 8K black cardboard are essential materials for art students. Compatible with markers, gold pens, colored pencils, etc., the dark background significantly boosts color rendering, making it ideal for sketching, hand-painted display, design proofing, and 3D handcrafts. 250g–300g black cardboard suits paper-cutting, origami, and pop-up books, while 500g high-grammage products serve as model bases to support complex 3D structures.
As a core base for hardcover book covers, album inner pages, and notebook covers, its stiffness ensures firm binding and premium texture. 200g–250g black cardboard is commonly used for greeting cards, invitations, and clothing hang tags; combined with hot stamping, it elevates the grade of cultural and creative products, making it the top choice for high-end cultural and creative items.
It is the core material for high-end gift boxes such as cosmetics, jewelry, shoes, tea, and wine. The uniform texture and deep color of double-sided solid black cardboard create a luxurious, mysterious visual effect, significantly increasing product added value. Handbags and promotional gift packaging also use black cardboard for its burst strength to prevent damage during transportation.
Leveraging its excellent light shielding and insulation, it is used as speaker diaphragm gaskets, electronic component protective packaging, light-shielding storage for photographic and X-ray films, and inner/outer packaging for chemically sensitive materials.
As a base for window display boards, display racks, and photoelectric backboards, the black background forms a strong visual contrast with bright promotional content, enhancing advertising recognition.
Used for photo frame backboards, background wall decoration, and picture frame making, its stable physical properties and premium texture make it a high-quality choice for home soft decoration.