Resealable Features in Package Design

Self-sealing reusable packaging bag with an integrated sealing feature that allows the user to seal the bag without external tools. The bag has a sealing unit with a strap, a tear strip, and an opening. The tear strip can be torn to separate the strap from the bag body. The strap can then be wrapped around the bag opening and fixed to seal the bag. This eliminates the need for external sealing strips or tools. The bag also has a cover over the opening to improve aesthetics and guide the tear strip separation.

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Vacuum packaging bag with a closing system that allows manual opening while maintaining the integrity of the bag, enabling temporary use of the packaged product. The bag has at least two rectangular sheets with three heat-sealed sides and an open side for product introduction. The closing system involves a unique configuration of the open side that allows easy manual tearing when pulling in opposite directions. This avoids the need for notches or sealing failures that cause irregular tearing. The bag can be resealed after partial consumption without waste or changing containers.

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A reusable paper bag with a seal that allows neat and reliable sealing of the opening without the need for plastic. The bag has communication holes on the left and right sides of the opening that connect the front and rear sections. A rectangular sealing strip can be inserted into these holes to close the bag. The strip has adhesive on the ends to attach to the bag. A message card can be integrated or attached to the strip in the center. This allows sealing with one strip instead of folding and taping the opening. The strip, made of a slightly thicker paper, provides rigidity to seal the bag.

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A resealable food packaging bag that allows convenient and effective sealing of both pre-packaged and bulk foods. The bag has a main body section with a mouth opening, a resealable seal tab on the mouth, and a foldable flap section. After opening the bag, the flap section can be folded over and sealed to reclose the bag around the resealable tab. This prevents moisture and deterioration of remaining food inside.

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Convenient food container with a sealing film that allows easy opening and ventilation. The container has a body with a food space and an opening covered by a sealing film. The sealing film has an adhesive layer over the opening, with separate adhesive layers on the right and left edges attached to the container edges. This creates a sealed container with vent holes on the sides. The adhesive layers prevent the film from sealing completely, allowing air release. An open seam connects the bottom faces of the adhesive layers and container edges, facilitating easy removal of the sealing film.

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A package design with a removable cover sheet that attaches using adhesive in one area and stays non-adhesive in another area. This allows articles to be stored in the space between the cover sheet and the opposite surface of the package through the non-adhesive area. The adhesive-coated area of the cover sheet can be peeled off and reattached to another surface to seal it. This provides customizable sealing options and storage capacity.

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Reusable plastic film sealed packaging bag with improved sealing capabilities that allows repeated opening and closing without damaging the bag. The bag has a sealing structure with a viscous sealing layer inside a sealing cavity created by strip sealing layers on either side of the opening. This triple sealing configuration provides better sealing than just a strip or viscous layer alone. It prevents air, dust, and moisture from contacting the adhesive sealing layer directly, improving seal longevity. The strip sealing layers can be repositioned and reused after opening, whereas a single-use high-temperature seal cannot be reopened.

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A container sealing sheet that allows controlled dispensing of granular materials from containers without the need for perforated lids. The sealing sheet has a base sheet that covers the container opening and is fixed to the container. It also has a tear-off sheet adhered over the base sheet's perforations. When the container is first opened, the tear-off sheet is easily peeled off, revealing the perforations that allow material dispensing. This prevents the container from having a large unsealed opening and allows controlled dispensing of granular materials without the need for perforated lids.

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A foldable packaging bag for liquids like drugs, detergents, and foods that allows easy opening and refilling without tearing or deteriorating the bottom barrier. The bag has a foldable bottom made of a paper-based film with a sealant layer on each side. The bottom folds closed with the sealant layers facing inward. This allows the bag to be opened by peeling the sealant apart at the bottom. The unfused portion of the bottom film remains intact, preventing tearing or barrier loss. The bag also has top, side, and bottom seals with releasable layers.

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Easily openable refill packaging bag for liquids that has a bottom section that can be torn open without damaging the barrier properties. The bottom film is folded and sealed at the edges, with an unfused section left inside. This allows the bottom to be easily torn open when refilling, eliminating the need for a separate barrier film. The bottom film is made of a material with good barrier properties and has a breakable flaw near the center fold line. The flaw allows the bottom to tear open easily when refilling without compromising barrier integrity.

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Food packaging bag that allows resealing after initial opening. The bag has an opening on one side with an inner diaphragm for initial sealing. The outer side is sealed with a zipper. An easy-tear strip decorates the opening. This allows tearing the diaphragm to access the food, then sealing again with the zipper.

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Packaging bag for liquids that reduces contamination and adhesion when opening compared to traditional bags. The bag is made of a laminate with an outer paper layer and an inner thermoplastic sealant layer. The paper layer has a small size relative to the bag (less than 15%) to prevent liquids from sticking to it. This allows the paper to be easily torn open to access the contents without adhering to fingers or surrounding surfaces. The thermoplastic sealant prevents leakage. The paper layer also provides strength and durability.

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A resealable packaging bag with improved opening and resealing characteristics. The bag has a resealable tape with an adhesive layer near the opening. The tape is heat-sealed to create a resealable section. The key innovation is that the edge of the resealable section on the opening side has a convex shape that bulges outwards. This allows easy initial opening of the bag despite the adhesive strength. The convex shape helps overcome the issue where high adhesive strength during resealing prevents initial opening. The bag can also have a recessed arc shape on the resealable section on the side away from the opening to prevent contents spilling out.

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Environmentally friendly, wear-resistant, and moisture-proof woven bag with improved durability and sealing capabilities. The bag has a woven outer layer for strength and durability, and an inner layer made of a moisture-proof film. The inner film layer is sandwiched between the outer layer and a separate sealing strip. This allows the strip to seal the bag opening without puncturing the inner film layer, preventing moisture leakage. The strip is made of a different material that can withstand the forces of sealing without tearing the film. This protects the contents of the bag from moisture and prevents film rupture during multiple uses.

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Elastomeric storage container with an integrated leak proof seal and pressure shield. The container has a unique seal design with protrusions and indentations on the opposing sides that engage when closed. The seal has a winding boundary path that winds around the container multiple times. This provides high sealing force and leak resistance. The container also has internal pressure shields that prevent the seal from peeling open when the container is squeezed or dropped. The shields add a small amount of material inside the container but significantly improve leak resistance. The container can be shaped, reusable, and durable for food storage.

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A resealable bag for wipes that prevents drying out by separating the wipes from the air. The bag has a membrane dividing the interior into a contents chamber for the wipes and an access chamber near the top. The wipes stay moist in the contents chamber while only the access chamber is exposed to air when the resealable closure is opened. This allows repeated use without drying out the wipes.

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Sealing arrangement for a paperboard packaging container, like a bulk solid food container, with improved sealing capability. The container has a sealing rim attached to the inner surface of the container wall at the opening. The lid has a circumferential lid sealing member applied inside. The lid closes onto the rim and seals against the sealing member. The sealing member is a polymer foam with a thickness greater than the distance between the rim and lid sealing surfaces. This compression creates tension in the sealing member. The lid also has a frame structure extending outside the container wall. The frame attaches to the rim and lid hinge. The frame has a locking flap that connects to the lid hinge. This flap has an interengaging element that locks with a lid element. The lid sealing member, rim, frame, and locking mechanism provide enhanced sealing and closure for the paperboard container.

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A resealable packaging bag that can be opened and closed multiple times without using additional fasteners like tabs or zippers. The bag has a heat-sealed portion formed between a paper member and a film member to enclose the contents. The opening is sealed with an adhesive portion that can be resealed by heating. The bag is made by heat sealing the paper and film together with a heat-sealing agent. The adhesive seal is also formed by heating. The bag can be resealed by heating the adhesive seal, eliminating the need for additional fasteners or tapes.

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Refillable packaging container for toiletries and food products that allows easy refilling without spills or clogging. The container has a unique design with a bendable paper-based body and a separate auxiliary member that can be sandwiched between the inner and outer sheets. The auxiliary member has notches at the ends and is sealed around the edges. This allows the container to be bent and flattened for easy storage and transportation, but when refilling, the auxiliary member pops out due to the notches. This provides a wide opening for pouring the contents without clogging or spills. The paper-based body also prevents pinholes and breakage from bending and dropping. The container uses a low-adsorption sealant on the innermost layer to prevent aroma loss.

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Packaging container with easy refill and good sealing properties. The container has an inner stacked sheet called the container body with a sealed storage area. A pouring assist member is positioned inside the storage area, with part inside and part outside. The outer surface of the inside part is sealed to the inner surface of the container body. The container body has a strength weakening line along the edge. The pouring assist member has a weakened portion connecting the edge and inner surface where the second sheet peels off easily. This allows easy opening by peeling off the weak seal. The seal strength of the weak seal is 0.3-10 N/15 mm. This enables refilling the container into another container while still sealing well.

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