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A spout pouch consists of two parts, the spout and the stand-up bag. The bag part matches an ordinary four-seal stand-up pouch in construction but usually uses composite materials. It combines the reclosure of a PET bottle with the style of a composite foil pack, offers a display area clearly larger than a PET bottle, and its key advantage is portability.

Bag breakage in spout pouch production occurs mainly at bag making and spout insertion. Punching, bottom gusset forming and bottom sealing need close attention, and the joint between four layers and two layers is the most breakage-prone area, calling for an extra heat-sealing bar. A spout pouch also needs good opening performance, low surface friction and no static.

Food packaging material basics: the inner layer is usually PE or CPP, the outer layer PA or PET, the middle layer possibly EVOH or PVDC, and aluminised film or aluminium foil is also used. PP and PE contain no plastic additives; PE and CPP seal easily, PA and PET print well, PVDC and EVOH offer good barrier properties, and aluminised film and foil block light.

The environmental direction for spout pouches comes down to three trends: harmlessness, composting and reduction at source. Degradable pouches biodegrade into harmless fragments after landfill burial, composting gains ground as landfill and incineration face restrictions, and reduction aims to cut production, resource use and waste at the source.

A foil pouch uses aluminium foil as its functional layer. Its matte surface does not absorb light, and its multi-layer build gives it strong light-blocking and barrier properties along with oil resistance and softness. It is non-toxic, has no particular odour, usually adopts a four-layer structure with water and oxygen barrier performance, and can be made to measure in flat, stand-up and gusseted styles.

Sealing defects on foil pouches fall into two groups: seals that are not tight enough, and seals that wrinkle or blister. Weak seals usually trace back to low sealing temperature, insufficient pressure or an unstable sealing material, while wrinkling and blistering relate to the heat resistance of the material, the adhesive and ink, residual solvent, and the condition of the sealing bars.

A spout pouch is made up of two parts: a spout and a stand-up pouch. The pouch part is built in the same way as an ordinary four-side-seal stand-up pouch but generally uses laminated material to meet the requirements of different food packaging, while the spout part can be seen as a bottle neck with a straw added. The two are joined tightly to form a drink package that can be sucked from.

A stand-up spout pouch has a horizontal supporting structure at the base and a spout at the top or side, so it stands unaided. Materials are chosen by layer: the outer layer carries printing and external strength, the middle layer provides barrier, and the inner layer handles heat sealing, with all three matched to each other and to whether the contents are solid or liquid.

On June 21, the State Post Bureau released its latest statistics: during this year's "618" shopping event (June 1–20), the national postal and express delivery industry collected more than 6.59 billion parcels, a year-on-year increase of 24.24%. Available data shows that as of June 1 this year, China's express delivery volume had exceeded 40 billion parcels. As packaging becomes ever "greener," how can the problem of express packaging recycling be solved? Will the packaging costs of express delivery companies rise sharply? And how should consumers

NBD AI Express, June 25, 2021 — Guangdong Hongming Intelligent Co., Ltd. disclosed its prospectus (application draft). Guangdong Hongming Intelligent Co., Ltd. plans to publicly issue no more than 12.5 million shares in this offering, all of which are newly issued shares, with existing shareholders not offering shares publicly; the final number of shares issued will be determined after registration with the China Securities Regulatory Commission. The number of shares issued in this offering shall account for no less than 25% of the total share capital after the issuance. The funds raised in this offering are to be used for projects and the proposed investment of