Design points of irregular composite packaging bags

Composite packaging bags are flexible packaging materials formed by compounding two or more materials with different properties, creating high-performance packaging bags that can fully utilize the advantages of each component material. With the advancement of material processing technology, current composite packaging bags come in various types, perform differently, and their appearance is not limited to specific shapes.

Shunxingyuan Packaging Bag Family

Below, Shunxingyuan Packaging, a professional flexible packaging manufacturer, will summarize the characteristics of composite packaging bags, as well as the design essentials and common forms of shaped pouches, based on years of experience in producing composite packaging bags.

I. Compared with other types packaging, composite packaging bags have the following characteristics

Lightweight, transparent, soft;

Good airtightness and heat sealability;

Excellent moisture-proof, gas-proof, UV-proof, heat resistance, and cold resistance;

Also has good dimensional stability, stable chemical properties, excellent chemical resistance and grease resistance;

Tear-resistant, puncture-resistant, fatigue-resistant, impact-resistant, friction-resistant, anti-aging;

Excellent mechanical processability.

Composite packaging bags also have advantages such as less waste, easy processing and forming, small space occupation, low cost, and high cost-effectiveness (volume and weight per unit weight of packaging), which can meet the needs of most commodities—especially packaging needs for clothing, apparel, hardware electronics, cosmetics, and food.

II. Design Essentials of Shaped Pouches

Shunxingyuan Shaped Pouches

1. Change in content volume

After a regular composite packaging bag is changed into a shaped pouch, its capacity will inevitably change, so the dimensions of the packaging bag need to be redesigned.

2. Change in the outer edge shape of the packaging bag

Since it is a flexible packaging bag, the outer edges of the packaging bag should not have sharp corners, to avoid puncturing other packaging when stacked, or harming users.

3 Impact of sealing method

If shaped pouches are sealed using automatic sealing equipment, to facilitate smooth production, there are certain requirements for the opening direction, sealing position, etc., of shaped pouches, which is also a point to consider.

After comprehensively considering the above factors, coupled with exquisite pattern design, a successful shaped flexible packaging bag is born.

III. Shaped Pouches Application Cases

Shunxingyuan Shaped Pouches Hardware Packaging Series

Depending on their form, shaped pouches can mainly be divided into the following types.

1. Shaped Stand-up Pouch with Spout

The purpose of adding a spout is to facilitate pouring of the contents, and products with a spout can be re-sealed, meaning they can be opened and used multiple times. This type of shaped pouch is suitable for liquids such as beverages, shower gel, shampoo, ketchup, cooking oil, or other liquid products that need to be opened and used multiple times.

2. Shaped Stand-up Pouch with Zipper

The purpose of adding a zipper is also to facilitate multiple opening and re-sealing. However, the difference is that the re-sealing method is a zipper, so this type of design is not suitable for packaging liquids but is used for packaging solid items, such as: clothing, apparel, hardware, electronics, cosmetic tools, candies, dried fruits, chocolates, biscuits, jellies, tea, etc.

3. Spout-like Shaped Stand-up Pouch

The characteristic of this packaging bag is that there is no additional spout in the packaging design; instead, a mouth-like pouch shape is created using the manufacturing characteristics of shaped pouches for easy dispensing. This design is suitable for liquid refills because once opened, it cannot be re-sealed. The applicable products are basically the same as those for spouted shaped stand-up pouches.