Application and Development of Blister Packaging Machine in the Confectionery Industry
Application and Development of Blister Packaging Machine in the Confectionery Industry
The application of blister packaging machine in the confectionery industry has evolved into an independent sector with the rise of 3D gummies, functional candies, and portable single-piece packaging. Below is a summary of the current situation in 2025-2026, organized by "Application Status → Driving Factors → Technological Evolution → Future Direction".
I. Current Application Status in the Confectionery Industry
Blister packaging (blister + aluminum foil/paper cap) primarily addresses three types of demand in the confectionery industry:
1. Hard Candy/Compressed Candy/Mint Candy: Single piece or strip packaging, emphasizing portability, hygiene, and portion control (e.g., mints, vitamin tablets).
2. Chocolate Beans/Filled Chocolates: Single blister tray + paper card or aluminum foil, preventing breakage and enhancing the gift box's perceived quality.
3. 3D Gummies/Functional Gummies (Fastest Growth): Fruit juice gummies, probiotic gummies, vitamin gummies—the three-dimensional shape requires deep-stretch blister packs as "display windows," while high-barrier films preserve activity. In 2026, the procurement volume of this type of machine in the Chaoshan and Chaozhou production areas increased by over 40% compared to 2023.
The production line format has also evolved from single-machine molding-filling-heat sealing-die-cutting to a fully integrated line linking casting and cooling, metal detection, visual rejection, cartoning machines, and palletizing robots. Manual intervention points have been reduced to film application and mold changing.
II. Why are candy factories increasingly willing to adopt blister pack lines?
1. Single-pack control: European and American and domestic chain snack channels are promoting "small blister packs," which blister packs are a natural fit for.
2. Shelf display: Transparent PET/PVC blister packs + printed bottom cards look more like "gifts" than pillow bags, resulting in greater profit margins.
3. Shelf Life and Hygiene: Gummies and lozenges are sensitive to moisture and oxygen. Aluminum-plastic/aluminum-aluminum blister packs offer approximately 80% higher moisture resistance and reduce contamination risk by about 60% compared to ordinary pillow-type packaging.
4. Benefits of Pharmaceutical Machinery Precision: Pharmaceutical-grade servo and vision systems are being applied to the food industry, achieving a candy packaging yield rate of over 99.5%, virtually eliminating misplacement and missing packages.
III. Technological Evolution: From "Can Pack" to "Smart Pack"
1. Dimension: Traditional State; Mainstream Level in 2026.
2. Drive: Mechanical Cam; Fully servo-driven independent drive; Positioning within ±0.5 mm.
3. Changeover: Mold Change; 1–2 hours; Quick mold change + formula memory; 15–30 minutes for cutting specifications.
4. Detection: Photoelectric Counting; Industrial vision for detecting missing pieces/broken candy/sugar powder at the seal; AI-based waste removal reduces losses by ~15%. 5. Operation and Maintenance: Post-maintenance, IoT-based temperature, pressure, and speed monitoring, integrated with MES, enabling edge predictive maintenance.
6. Heating: Resistance wire, infrared/induction heating, reducing energy consumption by 20-30%.
7. Packaging Materials: PVC + aluminum foil, recyclable PET, single material, biodegradable film, cold/heat sealing dual mold heads.
Two special improvements specific to candy:
1. Flexible Material Handling: 3D gummies are easily deformed, requiring vision-guided flexible grippers or servo vibration material handling; hard impacts are not allowed (Bochuan, Songchuan Yuanyi, etc. have already implemented this on 3D gummy lines).
2. Deep Drawing Molding: Bear/fruit-shaped gummies require 15-25 mm deep blister packs, demanding higher mold precision and traction synchronization than tablets.
IV. Development Bottlenecks and Next Steps
Current Pain Points
1. The gummy surface has a sugar powder/oil film, resulting in a narrow heat-sealing window, and batch-to-batch film material fluctuations can easily lead to incomplete sealing.
2. While mold changeover is fast for small-batch, multi-SKU production, it still results in downtime; true "zero mold changeover" is not yet achieved.
3. Biodegradable films still lack sufficient barrier properties on deep-stretch blister packs, making it difficult to switch to them for functional gummies.
Main themes for the next 3-5 years:
1. Hybrid sealing head: Cold sealing ↔ hot sealing switchover in less than 10 minutes, compatible with paper-based/biodegradable films—demonstrated at Interpack 2026.
2. Digital twin + self-diagnosis: Vibration/temperature sensors predict heating belt failure, turning downtime from "sudden" to "scheduled."
3. Robotic feeding replaces vibratory feeders: For irregularly shaped gummies and chocolate bars, collaborative robots perform "human-like" gentle placement.
4. National Standards Force Upgrades: GB/T 46077-2025, "General Technical Requirements for Fully Automatic Blister Packaging and Cartoning Machines," implemented in March 2026, mandates food-grade 304/316L stainless steel, easy disassembly and cleaning, and data interfaces as key requirements, leading to the demise of generic machines.
5. Blister + Cartoning Machines Become the Mainstream Purchasing Unit for Small and Medium-Sized Confectionery Factories (rather than bare machines), and Equipment Manufacturers' Profits Shift from Selling Metal to Selling Complete Line Commissioning and After-Sales Contracts.
If you are currently selecting equipment (capacity/candy type/budget), please tell me your specific product type, and I can help you determine whether to use rollers or flatbeds, whether to add visual rejection, etc. For further details, please contact Wenzhou Lin'er Machinery Co., Ltd.
