In the modern construction industry, ready-mixed mortars, bagged dry mortars, and tile adhesives are increasingly popular due to their convenience and consistent quality. However, because they contain binders and fine aggregates, mortars easily absorb moisture from the air, leading to clumping and reduced quality before application. To solve the problem of preserving and transporting large quantities, using kraft paper bags for mortar is the optimal solution chosen by manufacturers and OEM processing units.
1. Common Structures of Kraft Paper Bags for Mortar Today
To meet the stringent standards for tear resistance and moisture resistance of the construction materials industry, kraft paper bags for mortar are usually manufactured with a structure of 2 to 4 layers of paper or a combination of woven fabric to enhance durability. At JPT, we focus on providing the following specialized industrial paper-based packaging lines:
• Multi-layer Kraft paper bags: Constructed from 3 to 4 layers of thick, virgin Kraft paper stacked on top of each other. Thanks to the mechanical properties of natural wood fibers, this type of bag has slightly reduced moisture absorption on the surface and good compression resistance when stacked on pallets.
• PP woven bags laminated with Kraft paper (KP bags): This is a super-strong combination of an inner layer of highly tear-resistant PP woven fabric and an outer layer of durable Kraft paper. This combination prevents the bag from tearing, breaking, or puncturing during the logistics process and rough handling at the construction site.
• PE-lined or PE-coated moisture-resistant bags: To protect dry mortar from moisture and clumping due to weather conditions, paper bags can be coated with a thin layer of PE plastic film or have an additional independent PE plastic bag inside, depending on the manufacturer's requirements. This film creates an absolute barrier preventing moisture from penetrating inside. • Bottom-sealed or valve-designed bags: This is a square, box-shaped packaging style. In particular, the valve-designed bag is very popular and convenient for factories using automated packaging lines. When the mortar powder is pumped through the nozzle, the internal pressure will automatically seal the valve without the need for sewing.
2. Standard Specifications of Kraft Paper Bags for Industrial Mortar
Due to the high specific gravity of construction materials, kraft paper bags for mortar are designed according to standard technical specifications for convenient loading and unloading by machinery or manually:
• Common Load Capacity: Bags are designed to flexibly withstand loads from 25kg to 50kg, suitable for the carrying capacity of construction workers and the size of common mortar mixers. • Shaped dimensions: The length, width, and bottom opening of the bag are precisely calculated so that when filled with mortar, the bag forms a square shape, making pallet stacking in storage extremely neat and saving container space.
3. Benefits of ordering paper bags for mortar from JPTVN
JPT, a Japanese packaging company with 30 years of experience in producing kraft paper packaging in general and kraft paper bags for mortar in particular, is a reliable name providing packaging solutions for businesses.
JPT is committed to ensuring that the packaging meets all quality criteria such as ISO, HALAL, BRC, etc., meeting stringent export requirements. The packaging has optimal durability, good moisture resistance, keeps the mortar dry and loose, and meets quality standards when it reaches the contractor. With modern Flexo printing technology, logos and images are displayed sharply, helping to effectively identify the brand. As a direct, end-to-end manufacturer without intermediaries, JPT offers competitive prices and Japanese-standard quality.
Using high-quality kraft paper bags for mortar is a sustainable solution to protect your product, reduce losses due to breakage, and enhance your brand reputation. Contact JPTVN today for detailed advice!
