SOS (Self-Opening Sack) is a classic paper bag forming structure. Through pre-indentation and tongue self-locking to achieve rapid bottom, no glue bonding, greatly improve the efficiency of bagging and bottom straightness. This structure is particularly critical in small bags - avoiding the collapse and rolling-over problems of traditional flat bottom bags, and improving the texture of the terminal display.?
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The small-sized kraft paper SOS handbag is an entry-level custom packaging solution that combines high load-bearing capacity, strong environmental friendliness, and fast delivery. It is specially designed for high-frequency usage scenarios such as lightweight retail, cultural and creative souvenirs, tea beverages, and baking. It adopts the classic SOS (Self-Opening-Sack) structure - that is, "self-opening bag opening + flat bottom shaping", which can be quickly opened and stably placed upright without the need for glue bonding, significantly improving the terminal packaging efficiency.?
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Material and Craftsmanship
Paper Weight: Mainly 120g - 175g kraft paper, balancing stiffness and flexibility; the thicker version (e.g. 175g) is more tear-resistant and has excellent stand-up bag effect;
Printing compatibility: Supports single-color/dual-color gilding/embossed logos, and can also be made as full-page background patterns or minimalist SOS ICONS. No blurring or color fading after printing.
Environmental protection certification: most of them are in line with FSC forest certification or SGS environmental protection testing, to meet the requirements of export and high-end customers.?
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Applicable scenarios
Lightweight retail packaging: Milk tea cup covers, small cake boxes, handmade soaps, scented candles, postcard sets, etc.;
Event materials: Exhibition souvenir bags, campus cultural and creative peripheral bags, holiday small gift packages (such as Christmas candies, Mid-Autumn tea bags);
Office storage: Document sorting, sample delivery, internal information transfer (more professional when used with kraft paper file bags).
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