Shrink Sleeves for Full Container Coverage

Heat shrinkable polyester film for labels on PET bottles with high shrinkage rate, puncture strength, and resistance to bag rupture when dropped, and excellent adhesion. The film contains 60 mol % or more of ethylene terephthalate, 5 mol % or more of diethylene glycol, and 0 mol % or more of non-crystalline monomer components. This composition provides optimal shrinkage, puncture strength, and drop resistance for PET bottle labels.

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Shrinking device and method for shrinking packaging onto products that improves energy efficiency by selectively using fluid shrink agent and radiation sources in separate areas of the device. The device has conveyor belts to transport wrapped products. In one area, products are exposed to fluid shrink agent. In another area, products are exposed to radiation sources like IR emitters, lasers, or microwaves. This allows targeted heating of the packaging without overheating the products. The separate areas can have adjustable heights to match product sizes. The radiation sources can be adjusted to focus on film flaps and bottoms. This allows using lower base temperatures with radiation to shrink the packaging. The device can also have features like AI control and adjustable radiation intensity to further optimize shrinkage.

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A heat-shrinkable film that balances rigidity with shrinkage properties. The film contains a polycarbonate resin with a specific structure derived from a dihydroxy compound. This resin has a glass transition temperature of 90°C or lower and a shrinkage rate of 10% or more in the main shrinkage direction at 70°C. The film also has desired physical properties like high elongation, low modulus, and low haze. The film can be used for labeling containers with reduced environmental impact.

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Heat shrinkable film, label, and packaging material with improved properties for heat shrinking containers. The film has a copolyester resin with controlled crystallinity. The crystallinity is adjusted to have a specific difference in reversible heat capacity before and after the glass transition temperature. This provides better balance between thermal properties like shrinkage and chemical resistance compared to conventional polyester films. The film can be made by preparing the copolyester, casting it into a film, and then heating and stretching it to set the crystallinity.

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Polyester film for heat shrinkable labels and packaging that has improved shrinkage characteristics and sealing properties compared to conventional polyester films. The film is made from a copolyester resin with specific diol and dicarboxylic acid components. The copolyester has a narrow crystallization-melting temperature difference of 100°C or less. Treating the film with a 1% NaOH solution at 85°C for 15 minutes results in an endothermic peak at 100-150°C when scanned by DSC. This modified film has reduced shrinkage stresses, improved sealability, and reduced cracking compared to untreated polyester films. The specific copolyester composition enables better shrinkage uniformity and shrinkage control during high temperature processes like labeling and packaging.

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Rolled material for making heat shrinkable cylindrical labels that addresses the issue of wrinkles and trapped air between the label and container when heat shrunk. The rolled material has alternating sealed and unsealed regions in the overlapped heat shrinkable film. The sealed regions prevent air escape during rolling, while the unsealed grid-like regions release air during label formation. This prevents wrinkles and trapped air between the label and container after heat shrinking.

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Ink composition for shrink labels that provides an ink layer with excellent hot water whitening resistance, shrink suitability, and alkali release properties for shrink labeling of packaging materials. The ink composition contains a urethane resin with a low glass transition temperature (-60 to -20°C), a (meth)acrylic resin with low acid value (<10 mgKOH/g), and a rosin derivative with moderate acid value (150 to 310 mgKOH/g). This composition allows high ink adhesion to shrinkable films while preventing whitening during thermal shrinking and hot water exposure. The ink also removes easily from the films during recycling.

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Shrink-wrapped food packaging that conceals the film weld lines and improves aesthetics and tactile feel. The packaging involves laminating a sheet member over the shrink film welds on the outer surface of the container. This hides the unsightly weld lines and prevents injury from sharp edges. The sheet member can be a label with printing or a separate piece. It covers from the container opening to the side. The laminated structure prevents tearing and conceals the weld lines when the container is shrink-wrapped.

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Polyester film for heat shrinkable labels and packaging that has controlled crystallinity for improved thermal and chemical resistance. The film contains a copolymerized polyester resin with three or more diols and a dicarboxylic acid. The film has a difference in heat capacity of 0.25 J/g·K or more before and after the glass transition temperature, measured by DSC. This controlled crystallinity balances thermal and chemical properties.

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Packaging design and manufacturing method to prevent label misalignment when attaching a label between a product and the packaging material. The label has a fixed region that engages with an opening or feature on the product to prevent shifting during packaging steps. This prevents label wrinkles or misalignment when the packaging material is shrunk around the label and product.

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Heat-shrinkable film for packaging applications like labels on containers that provides excellent balance of rigidity and shrinkage properties. The film has a polyester resin composition with at least one diol residue derived from 1,3-propanediol. The film has specific properties like high ring crush strength, low modulus orthogonal to shrinkage, low tensile strength orthogonal to shrinkage, and low haze. These properties enable the film to have good rigidity for thin films while still shrinking well on objects and avoiding wrinkling.

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Microwaveable packaging with a label that peels off partially to expose the ventilation port during heating and then reattaches afterwards to seal the vent. The label has an inner adhesive, an intermediate layer, and an outer heat-shrinkable film. The heat-shrinkable film contracts during heating to expose the vent, but does not fully detach. This allows steam release during cooking without leaks afterwards.

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Polypropylene heat shrinkable film for packaging labels with improved shrinkage properties and opening of tear seams. The film has a low hot water shrinkage rate of 40-80% in width after 10 seconds at 90°C. It also has lower hot water shrinkage of 1-12% in length after 10 seconds at 90°C. The film has specific gravity 0.87-0.95, tear strength 100-330 N/mm in length, and refractive index difference of 0.005-0.028 between width and length. The film reduces natural shrinkage in width to 0.1-3.0% after 672 hours at 40°C, 65% RH. It also has natural shrinkage in length of

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Heat shrinkable polypropylene film for use as labels on beverage bottles that can float and separate during recycling. The film has specific properties to enable low-temperature shrinkage without natural shrinkage. It is made by stretching a polypropylene resin composition with certain characteristics. The composition has a specific gravity of 0.87 to 0.95, melting point peaks at 70-100°C and 100-170°C, and a refractive index of 1.490 to 1.530. The film is stretched at 50-100°C after heating and cooling treatment. The stretching ratio is 1.1-2.0x in width and 1.1-2.0x in length. The film has low shrinkage after aging and low natural shr

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PET bottle labels made of a heat-shrinkable film that provides both well-balanced and quantitative blocking resistance during recycling. The film is made from a combination of two polyester resins with different crystallinities. The first resin has a lower crystallinity and lower ethylene glycol content than the second resin. The film meets specific properties like exothermic peak time, area, and shrinkage rate during heating. This allows quantitative suppression of blocking when recycling PET bottles with the film attached. The film also has good wearability and adhesion to PET bottles.

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Beverage bottles with shrink wrap labels that can have 3D embossed designs without requiring special orientation during shrinking. The bottles have a container with embossed areas, like a face, on the sidewall. The shrink wrap label covers the entire sidewall except the embossed areas. The embossed areas protrude from the label when the bottle is shrunk. This allows 3D embossed designs without needing to align the label during shrinking. The embossed areas can have corresponding relief on the label to match. This eliminates the need for specialized molds for each embossed design.

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Heat shrinkable polyester film for tape labels used in packaging applications like shrink wrapping noodle containers. The film has high heat seal strength at low temperatures, high thermal shrinkage rate, and is suitable for machine assembly. The film composition contains ethylene terephthalate-based polyester with specific heat properties and stretching method to achieve the desired performance. The film thickness is 20-50 microns.

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A polyester film for heat shrinkable labels and packaging materials that can be recycled due to controlled crystallinity. The film has a polyester resin with a specific copolymer composition, crystallization temperature, and melting temperature difference. The film has a controlled crystallinity range that improves thermal and chemical properties. The controlled crystallinity allows recyclability without degradation while maintaining shrinkage uniformity and sealing.

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Recording method for shrink films used in packaging applications that enables printing on the inside surface of the film to prevent shifting during shrinking. The method involves using a first radiation curable ink to print an image on the shrink film using inkjet. Then, a second radiation curable ink is applied to the surface that will contact the packaged object to form a fixing pattern. This prevents the printed image from moving during shrinking and distorting.

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Packaging device that applies a hot melt adhesive to one end of a heat-shrinkable film to prevent slipping and improve accuracy when forming a cylindrical label around containers. The device pulls the heat-shrinkable film from a roll, winds it around a core, guides the ends to overlap, applies adhesive to one end, cuts the tube, and heats it to shrink onto containers. This allows longer heat-shrinkable films to be used, reducing connection frequency, and increasing productivity compared to joining multiple short cylindrical tubes.

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