Closure Clips for Barrier Bags

Quick, highly airtight closure with Azzurro-Clips without applying heat

Azzurro-Clips is a temporary closure system designed for technical bags, intended to minimize exchanges with the outside (ingress of moisture/oxygen and loss of aromas) in situations where heat sealing is not convenient or available. Its approach is functional: to allow immediate and repeatable re-closing at the bag opening, maintaining a good level of fit as long as the conditions of use are observed.

The two-piece interlocking design forces a uniform press-fit along the opening. This geometry reduces the typical leakage points of clamp-type closures and provides more consistent contact with the film, improving tightness compared to household clips, especially on high-barrier films.

Applications of the clip for barrier bags in high-barrier film

• Temporary re-closing of flat high-barrier bags, avoiding immediate use of heat sealing.
• Sampling operations, quality control or partial consumption scenarios where the bag is opened and closed multiple times.
• Protection of the product against the environment during internal transfers, order picking or short-term storage.

Key features of the interlocking system closure clips for bags

• Two-piece closure: allows precise placement over the opening and uniform pressure for a more consistent fit.
• Use as an alternative to a heat sealer in situations where thermal sealing is not viable or immediate.
• ABS material: dimensionally stable and inert, suitable for applications demanding component consistency.
• Designed for specific bags: particularly effective on flat bags with three-side heat sealing.

Usage recommendations for a temporary airtight closure for bags

• Separate the two parts, align them over the bag opening and press evenly along the full length.
• To remove the closure, disengage the two pieces from one end and separate.
• Work with a clean, unobstructed opening to avoid micro-leak channels.

Technical limitations of the temporary bag closure and how to avoid them

• Recommended for ambient temperature conditions only: performance may degrade at elevated temperatures.
• Repeated use can reduce closure tension and thus airtightness.
• Not suitable for gusseted bags or bags with adhesive seams where the closure seating is not flat.
• Avoid dust, labels, wrinkles or folds in the closure area to prevent compromise of the fit.
• If alternating between very thick and very thin films, closure behavior may vary and a complete seal may not be achieved.