High-Strength Kraft Paper Solutions for Industrial Packaging

Packaging paper that resists tearing and puncturing when folded or contacted with sharp objects. The paper is made from a base paper with 70% softwood pulp, disintegration freeness 440-690 ml, density 0.55-0.90 g/cm3, and low formation index (1 or less). It may have coating of carboxymethylcellulose and contain polyacrylamide resin. The paper properties provide high puncture strength and fold endurance.

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Pallet wrapping paper that replaces plastic for outer packaging of homogeneous pallets. The paper has specific properties like extensibility, bending resistance, and grammage to prevent tearing and damage during pallet wrapping and transport. The paper is produced by orienting cellulose fibers during application to align them. This alignment provides the desired properties for wrapping homogeneous pallets without excessive tearing or deformation.

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Unbleached kraft paper packaging material for loops, sleeves, and bands that won't tear when filled with products. The material is made from unbleached kraft paper with specific properties like high grammage (65-170 g/m2), high dry strength (105 N/g), low filler content, and cellulose composition (80% softwood, 10% hardwood). This prevents tearing when stretched. The paper can be coated with a thin layer of polyolefin or PLA to improve wet strength. The paper is formed into a sleeve by closing the edges in the cross direction. The sleeve holds products without tearing because the elongation in the circumferential direction matches the higher elongation in the machine direction.

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Packaging base paper that is resistant to tearing even when folded, resistant to tearing even when contacted with sharp objects or protrusions, and has uniform puncture strength. The paper contains 70% or more softwood pulp, has a disintegration freeness of 550 to 690 ml, and a formation index measured by total beta rays of 1 or less. This configuration provides high folding strength, resistance to contact damage, and uniform puncture strength for sealed containers like pouches without excessive plastic usage.

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A specialized paper for outer packaging of homogeneous pallets that provides better protection and durability compared to conventional sack paper. The paper has specific properties like extensibility, bending resistance, and grammage that prevent tearing during pallet wrapping and transportation. The paper is produced by a specialized papermaking process with specific pulp composition and machine settings. The pulp has long cellulose fibers with a certain length range.

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Pallet outer packaging paper that replaces plastic films for protecting homogeneous pallet loads during shipping. The paper has specific mechanical properties like extensibility, bending resistance, and grammage range to prevent tearing and damage during pallet packaging and transportation. The paper is made by processing pulp with particular fiber characteristics and pulp consistency ranges.

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Replacing plastic packaging for pallets with paper that provides similar performance and reduces reliance on plastics. The paper has specific properties for wrapping homogeneous pallets, such as expansion, strength, and lignin content. It allows pallet wrapping without tearing or damage. The paper has a lengthwise expansion of 8-15% and widthwise expansion of 8-15%. The cellulose fibers have a length-weighted mean length of 1.8-2.8 mm. The lignin content is 4-12%. This balances formability and strength. The paper has a TEA index of 5.0-6.5 J/g in the longitudinal direction and 2.7-3.7 J/g in the transverse direction. It also has a wet tensile strength index of 10 Nm/g or more. The

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A packaging paper that can replace plastic in packaging applications while providing similar performance. The paper has specific strength and tear resistance properties that make it suitable for automated packaging machines. The paper has a longitudinal specific tensile strength of 0.09 kN/m or more and a lateral specific tear strength of 10.0 mN/m2/g or more. The paper is made by using softwood kraft pulp with a defibration freeness of 400 to 600 ml CSF. This pulp composition and freeness range provides the required strength and tear resistance. The paper also has a density of 0.7 to 1.3 g/cm3 and a basis weight of 50 to 200 g/m2.

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Pallet wrapping paper that can replace plastic films in packaging pallets for shipping and storage. The paper has specific properties like extensibility, bending resistance, and grammage to prevent tearing and damage during pallet handling. It is produced by orienting the cellulose fibers during papermaking to align them in the machine and transverse directions. This provides the required extensibility and bending resistance. The paper is suitable for wrapping homogeneous pallets where the load items have uniform shapes.

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Pallet wrapping paper that replaces plastic for outer packaging of homogeneous pallets. The paper has specific properties for strength, extensibility, and bending resistance. It allows elongation of 8-15% in both directions, low bending resistance, and grammage of 50-90 g/m2. This prevents tearing during pallet loading and transportation compared to conventional sack papers. The paper is made by orienting cellulose fibers during production to achieve the desired properties.

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Pallet wrapping paper that can replace plastic wrap for palletized goods. The paper has specific properties like extensibility, bending resistance, and grammage to prevent tearing during pallet loading and transport. The paper is made by a specialized paper production process starting with a pulp slurry containing cellulose fibers with specific lengths. The paper has machine direction extensibility of 10-15% and transverse direction extensibility of 8-15%. It also has bending resistance below certain limits in both directions. The paper grammage is 50-1590 g/m2.

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Eco-friendly packaging material for articles that eliminates the need for resin films like cellophane. The packaging involves wrapping articles using paper instead of films. The article is placed on a tray and surrounded by wrapping paper. This eliminates the need for resin films while still protecting the article during shipping. The paper can be cut easily to open the package. The paper may have breaking portions for easier opening. The tray sides have higher paper adhesion than the inner sides to make bonding easier. The paper can be kraft or cardboard to improve strength. A shock-absorbing material between the article and wrapping paper prevents damage. The shock absorber can have a plate covering the article and a bent side facing it to provide side protection. The shock absorber can be made of the same material as the tray for cost savings.

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Packaging paper for sharp-edged objects and irregularly shaped items that prevents penetration of the packaging by the objects during handling and transportation. The paper has specific composition and properties to achieve this. It contains at least 95% primary cellulose pulp, mainly softwood pulp, with an average fiber length of at least 2.0 mm. The filler content is less than 5%. The paper has high tensile strength, elongation, and puncture resistance. This allows the paper to stretch and deform around sharp edges without tearing or penetration. It also has a Gurley value between 5 and 45 seconds. The composition and properties prevent puncturing of the paper when packing sharp objects and items with irregular surfaces.

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Packaging paper with improved properties for protecting sharp-edged objects and preventing penetration or tearing when packed. The paper has a high content (95%) of primary cellulose pulp with long fibers (2.0 mm average length) to provide strength and elasticity. Fillers and cationic starch are added in lower amounts (less than 3.7%) to balance the pulp. This paper composition allows it to withstand puncturing forces and prevent objects from penetrating or damaging the packaging. The long fiber pulp provides flexibility and elasticity to prevent tearing. The paper also has a high tensile strength index.

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Pallet wrapping paper that can replace plastic films for pallet wrapping and a method to produce it. The paper has specific properties like extensibility, flexural rigidity, and grammage range that enable it to wrap homogeneous pallets without tearing or damage. The paper is made by pulping cellulose fibers with an average length of 1.8-2.8 mm and producing a suspension with 97-99.85% water content. The high fiber length and low water content provide the desired balance of formability and strength for pallet wrapping.

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Pallet outer packaging paper for replacing plastic wrap in palletizing applications. The paper has specific properties to prevent tearing and damage during pallet wrapping. It has an extensibility of 8-15% in both machine and transverse directions, low bending resistance, and grammage of 50-90 g/m2. The paper is produced by aligning cellulose fibers during pulp application on the paper machine.

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A biodegradable paper packaging material with improved mechanical strength and moisture resistance compared to traditional paper packaging. The paper has a vegetal resin applied to the surface that penetrates inside the paper layer to create a strong chemical pulp fiber bonding. The resin also creates a better barrier against moisture. The paper has closed patterns of vegetal resin applied to specific areas to provide a controlled thermo-sealing area for closing the package without using adhesives.

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Improving the freeness of pulp and the compression strength of paper or packaging materials made from it, by treating the pulp with glycoside hydrolase Family 61 (GH61) enzymes during paper making. The GH61 enzymes dissolve colloidal substances in the pulp that restrict water drainage, allowing better consolidation and dewatering of the pulp. This reduces manufacturing costs and improves productivity by enhancing pulp freeness and paper compression strength.

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Improving the mechanical strength of paper and cardboard without using mineral fillers and pigments that degrade performance. The method involves adding trace amounts of finely dispersed pigments like umbra, ocher, saponite, or silevit with particle sizes of 0.1-20 μm to the fiber mass during paper production. The pigment concentration is 0.1-0.5% by weight of the dry fiber. This low pigment content avoids issues like porosity increase and bond weakening seen with higher filler levels. It enhances paper properties like resistance to dampening, compression, and bending without sacrificing strength.

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