Spout pouch is a kind of liquid packaging with mouth, which uses soft packaging instead of hard packaging. The structure of the nozzle bag is mainly divided into two parts: the nozzle and the self-supporting bag. The self-supporting bag is made of multi-layer composite plastic to meet the requirements of different food packaging performance and barrier performance. The suction nozzle part can be regarded as a general bottle mouth with a screw cap on the suction pipe. These two parts are tightly combined by heat sealing (PE or PP) to form extrusion, swallowing, pouring or extrusion packaging, which is a very ideal liquid packaging.
Compared with ordinary packaging, the biggest advantage of nozzle bag is portability.
The mouthpiece bag can be conveniently put into the backpack or even the pocket. With the reduction of contents, the volume decreases and the carrying is more convenient. The soft drink packaging in the market mainly adopts the form of PET bottles, composite aluminum paper bags and cans. In today's increasingly homogeneous competition, the improvement of packaging is undoubtedly one of the powerful means of differentiated competition.
The blow pocket combines the repeated packaging of PET bottles and the fashion of composite aluminum paper bags. At the same time, it also has the incomparable advantages of traditional beverage packaging in printing performance. Due to the shape of the self-supporting bag, the display area of the blowing bag is significantly larger than that of the PET bottle, and is better than the Lile pillow that cannot stand. It can be sterilized at high temperature and has a longer shelf life. It is the ideal sustainable solution for liquid packaging. Therefore, nozzle bags have unique application advantages in fruit juice, dairy products, soybean milk, vegetable oil, health drinks, jelly food, pet food, food additives, Chinese medicine, daily chemical products and cosmetics.
- Reasons why spout pouch soft packaging replaces hard packaging
Spout pouches are more popular than hard packaging for the following reasons:
1.1. Low transportation cost - the suction Spout pouch has a small volume, which is easier to transport than the hard packaging and reduces the transportation cost;
1.2. Light weight and environmental protection - Spout pouch uses 60% less plastic than hard packaging;
1.3. Less waste of contents - all contents taken from the Spout pouch account for more than 98% of the product, which is higher than the hard packaging;
1.4. Novel and unique - Spout pouch makes products stand out at the exhibition;
1.5. Better display effect - the suction Spout pouch has enough surface area to design and promote brand logos for customers;
1.6. Low carbon emission - the manufacturing process of Spout pouch is lower energy consumption, more environmentally friendly and less carbon dioxide emissions.
Spout pouches have many advantages for both manufacturers and retailers. For consumers, the nut of the Spout pouch can be re sealed, so it is suitable for long-term reuse at the consumer end; The portability of the Spout pouch makes it easy to carry, and it is very convenient to carry, consume and use; Spout pouch is more convenient to use than ordinary soft packaging and is not easy to overflow; Oral bags are safe for children. It has anti swallowing choke, suitable for children and pets; Richer packaging design is more attractive to consumers and stimulates re purchase rate; The sustainable single material Spout pouch can meet the requirements of environmental protection, classified recycling packaging and carbon neutralization and emission reduction targets in 2025.
- Spout pouch material structure (barrier material)
The outermost layer of the nozzle bag is a directly printable material, usually polyethylene terephthalate (PET). The intermediate layer is a barrier protection material, usually nylon or metallized nylon. The most commonly used material for this layer is metallized PA film (met PA). The innermost layer is a heat sealing layer, which can be heat sealed into the bag. The material of this layer is polyethylene PE or polypropylene PP.
In addition to pet, met PA and PE, other materials such as aluminum and nylon are also good materials for making nozzle bags. Commonly used materials for manufacturing nozzle bags are: pet, PA, met PA, met pet, aluminum foil, CPP, PE, VMPET, etc. These materials have a variety of functions depending on the products packaged with nozzle bags.
Typical 4-layer structure: aluminum foil cooking nozzle bag PET / Al / BOPA / RCPP;
Typical 3-layer structure: transparent high barrier jam bag PET /MET-BOPA / LLDPE;
Typical 2-layer structure: Bib transparent corrugated box with liquid bag BOPA / LLDPE
When selecting the material structure of the nozzle bag, metal (aluminum foil) composite material or non-metal composite material can be selected.
The metal composite structure is opaque, so it provides better barrier protection
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Post time: Aug-26-2022