Applications and Development of Blister Packaging Machine in the Fish Feed Industry

Applications and Development of Blister Packaging Machine in the Fish Feed Industry

Blister packaging machine is mainly used in the fish feed/ornamental fish feed industry for single-dose aluminum-plastic/plastic-plastic individual packaging of frozen bloodworms, brine shrimp, freeze-dried pellets, and small baits. The specific applications and development are as follows:

I. Specific Applications in the Fish Feed Industry

Applicable Products: Primarily used for blister packaging of frozen ornamental fish baits (bloodworms, brine shrimp, daphnia), freeze-dried fish feed pellets, small hard pellet feeds, and paste-like fish feeds. It is particularly suitable for high-value small-packaged fish feeds requiring moisture and oxidation protection. - Packaging Form: PVC/PS/PET rigid sheet thermoformed blister + PTP aluminum foil or aluminum-plastic composite film heat sealing; transparent cover film is also used for easy display. A single blister can be divided into multiple blister packs, enabling single-feeding quantitative control.

Dedicated Feeding System: Fish food (especially bloodworms) is prone to sticking and breakage. Dedicated models are equipped with suction/vibration-type fish food feeders, allowing for the addition of liquid bloodworms while controlling the liquid level, without damaging cell tissue. After packaging, it can be frozen at -18℃ for up to two years. - Advantages: Compared to traditional bulk or stand-up pouches, blister packaging provides a sealed, moisture-proof, mildew-proof, and insect-proof solution. It offers intuitive display, and individual blister packs allow for independent use without contaminating remaining stock, making it suitable for supermarket retail and small-quantity e-commerce sales.

II. Industry Development and Technological Trends

High Speed ​​and Automation: The new generation of models can achieve a punching frequency of 6-40 times/minute, with automatic feeding, batch number coding, visual material shortage detection, and automatic rejecting. Some models can be integrated with cartoning machines into a single line. Flexibility and Modularization: To adapt to various fish food specifications (different particle sizes, different blister pack numbers), quick-change molds and PLC parameter storage are used to shorten changeover time.

Environmentally Friendly Materials: Gradually compatible with APET, PP, and biodegradable PLA blister materials to meet plastic reduction and environmental protection requirements; high-barrier PVDC coatings are also being used to extend the shelf life of freeze-dried fish food.
- Intelligent Management: Mid-to-high-end models integrate servo drives, touchscreen HMI, MES integration, and production data traceability, complying with food/GMP hygiene design specifications (easy to clean, no dead corners).

Market Positioning: Blister packaging is a niche high-end small packaging segment in the fish food industry (single-feed packs, gift packs, high-end freeze-dried lines), while bulk fish food is still mainly sold in upright bags/woven bags; however, with the increasing sophistication of ornamental fish breeding and the premiumization of pet fish food, the demand for this segment is steadily growing.

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