Specialty Paper for Performance Packaging

Hermetically sealed packaging for viscous cosmetics like creams and serums in the form of a pyramid made of foil-coated paper. The packaging has a vertical seam joining the upper and lower sealed ends at 90 degrees. The upper end has a special section with a tear line that initiates opening. This allows easy opening of the packaging by tearing along the initiation line instead of breaking the seals or cutting the corners. The corrugated surface on the sealed ends provides grip for tearing.

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Thermally insulated, waterproof, and high-strength packaging bag that provides improved protection for goods while reducing wrinkling and damage. The bag uses a composite structure with outer and inner paper layers sandwiched between insulating foam layers. Elastic adhesive is used to bond the layers. The outer layer has a convex buffer structure that disperses pressure. The insulating foam has a gradient height convex structure to prevent wrinkling. The adhesive is a polyurethane emulsion with thickener, wetting agent, and silane coupling agent for strength and elasticity.

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Biodegradable packaging made from paper impregnated with propolis extract to provide biocidal and antioxidant properties. The paper is treated with water or ethanol extracts of propolis, a natural bee product with antibacterial, antifungal, and antioxidant activity. The impregnated paper can prevent microbial growth on food products during storage. The propolis extracts also have antimold and antifungal effects. The paper packaging degrades faster than regular paper due to the nutrients in propolis enriching the soil. Consumers prefer the propolis paper due to its natural origin and health benefits.

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Method for manufacturing a rigid, eco-friendly paper string for packaging that can replace plastic straps. The paper string is made by applying an adhesive to a paper base, joining two side bands, folding the paper multiple times, coating it, and winding it. This provides a paper string that is stronger, doesn't break easily, and can be reused or recycled after packaging. The coated paper string is wound around a roller to increase rigidity. It is a sustainable alternative to plastic straps as it can be reused, recycled, and composted after use.

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Eco-friendly and biodegradable packaging materials made from sugarcane bagasse that are sustainable, flame retardant, mechanically robust, thermally stable, and have low environmental impact compared to plastic alternatives. The process involves delignifying the bagasse, phosphorylating it, homogenizing, sonicating, casting, freezing, and freeze-drying to create films, aerogels, boards, boxes, plates, and sheets. The phosphorylation step enhances the properties like solvothermal stability, degradation resistance, and flame retardancy.

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Eco-friendly packaging for products that avoids the use of plastic blisters. The packaging is a paper card with a unique design to hold the product securely without needing plastic. The card has two halves, with the second half having holes arranged outside the product's periphery. Some holes match decorative features on the product, while others surround the product. This allows the product to be positioned and held securely by the holes without needing plastic blisters. The holes can be sized and placed based on the product's shape and features. The card can be recycled separately from the product after use, reducing waste and pollution compared to combined plastic and paper packaging.

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A food-grade barrier coating for molded pulp products like bowls, trays, and containers that provides water and grease resistance. The coating is made by crosslinking shellac resin applied to the pulp. The crosslinking involves thermal aging in an oven to melt and fuse the shellac chains. This creates a durable, water-repellent coating that penetrates the pulp fibers. The coated pulp products have low cobb (water absorption) and kit (grease penetration) values, making them suitable for food packaging. The crosslinked shellac barrier meets food migration limits at elevated temperatures.

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A packaging bag for displaying foods in stores that is environmentally friendly by using materials like glassine paper instead of synthetic resins. The bag has a glassine paper section for transparency to show the contents and a separate section made of more breathable paper. The two sections are heat sealed together to form the bag. This allows air permeability and visibility while avoiding synthetic films. The bag can be a bottom gusset or three-sided style.

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A sustainable double closure paper pouch for packaging items in a robust and commercially practical way with parallel reinforcable sticky strips for back-to-back sealing of the mouth to provide tamper evidence, spillage prevention, and robustness while being environmentally responsible. The pouch has parallel sticky strips running along the top of the front and back walls that are covered by tearable paper tabs. Severing the tabs allows the strips to adhere together to seal the pouch back-to-back. This creates a thick single wall without folds for sealing and closure. The reinforced strips provide secure sealing and spillage prevention, the tearable tabs enable easy opening, and the back-to-back sealing provides tamper evidence. The pouch can be made from eco-friendly materials like uncoated recyclable paper.

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