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IPE Film for Spout Pouch Packaging: Unlock New Portable Packaging Experience with Dual Protection of Tightness and Durability
Spout pouches have become the mainstream packaging form for liquid and semi-fluid products due to their portability and easy access, but traditional films often face two pain points: one is the loose heat-sealing between spout and film, which is prone to leakage; the other is the insufficient film strength, which is easy to break after repeated use. Our IPE film dedicated to spout pouches, through structural design and raw material optimization, specifically solves the core problems of spout pouch packaging, providing a reliable packaging solution for various fluid and semi-fluid products.
1
Spout-Specific Heat-Sealing Design: Eliminate Leakage Risks
Aiming at the heat-sealing difficulties between spout and film, a customized heat-sealing layer formula is adopted, combined with multi-layer co-extrusion technology to precisely control the thickness and component distribution of the heat-sealing layer. When the film is heat-sealed with the spout, a high-strength seal can be formed in the temperature range of 100–120℃, with the heat-sealing strength stably maintained at 18–22 N/15mm, far exceeding the standard of 12–15 N/15mm for conventional films. Even when filled with liquid (such as 500ml juice) and inverted or shaken, there is no dripping at the joint between the spout and the film; tests show that when the sealed spout pouch falls from a height of 1 meter, the seal integrity rate reaches 100%, completely solving the leakage problem of spout pouches.
2
Tough and Durable Structure: Suitable for Repeated Use
The film adopts a double-layer protective structure of "reinforced base layer + puncture-resistant surface layer", with tensile strength ≥25 MPa and puncture resistance ≥12 N, far higher than ordinary IPE films. In daily use, even if the spout pouch is repeatedly squeezed (such as squeezing tomato sauce, salad dressing) or the spout is frequently inserted and extracted (such as drinking yogurt and juice multiple times), the film is not easy to crack or deform; for contents with certain corrosiveness such as cooking oil and laundry detergent, the film also has mild chemical resistance, which can avoid film swelling or strength attenuation caused by long-term contact and extend the service life of the packaging.
3
Compatibility with Automated Processing: Improve Production Efficiency
Produced by advanced five-layer co-extrusion blown film technology, the film's thickness deviation is strictly controlled within 2%–4%, far lower than the industry's conventional standard of 5%–8%, ensuring film flatness and structural stability. To meet the needs of spout pouch automated production lines, the film surface is smooth without impurities and static electricity, which can smoothly pass through the forming-filling-sealing integrated equipment (speed up to 60–100 bags per minute) without jamming or waste film. At the same time, the film has a wide heat-sealing temperature range (100–130℃), no need to frequently adjust equipment parameters, reducing operation difficulty; it supports surface printing (pattern adhesion up to 4B level), and can customize brand logos, product descriptions and other information, balancing practicality and brand communication, helping enterprises improve the market competitiveness of products.
Frequently Asked Questions
What makes IPE film better than conventional film for spout pouch packaging?
IPE film features a customized heat-sealing layer formula and multi-layer co-extrusion technology that delivers a heat-sealing strength of 18–22 N/15mm — significantly higher than the 12–15 N/15mm standard of conventional films. This ensures a tighter, more reliable seal at the spout junction, greatly reducing the risk of leakage during transport and use.
At what temperature range does the IPE film achieve optimal heat-sealing with the spout?
The IPE film achieves optimal heat-sealing performance within a temperature range of 100–130℃. This wide range reduces the need for frequent equipment parameter adjustments, simplifying operation and improving production efficiency on automated packaging lines.
Can the IPE film withstand repeated squeezing and daily use without cracking?
Yes. The film uses a double-layer protective structure combining a reinforced base layer and a puncture-resistant surface layer, achieving tensile strength ≥25 MPa and puncture resistance ≥12 N. This makes it highly resistant to cracking or deformation even under repeated squeezing or frequent spout insertion and extraction.
Is the IPE film suitable for packaging chemically aggressive contents like cooking oil or laundry detergent?
Yes. The IPE film has mild chemical resistance, which prevents film swelling or strength degradation caused by long-term contact with mildly corrosive contents such as cooking oil, laundry detergent, and similar products. This extends the overall service life and reliability of the packaging.
How does the IPE film support high-speed automated production lines?
The film is produced using five-layer co-extrusion blown film technology with a thickness deviation controlled within 2%–4%, ensuring consistent flatness and structural stability. Its smooth, static-free surface allows it to run seamlessly through forming-filling-sealing integrated equipment at speeds of up to 60–100 bags per minute without jamming or film waste.
Can custom branding and product information be printed on the IPE film?
Absolutely. The IPE film supports surface printing with a pattern adhesion level of up to 4B, making it fully compatible with custom brand logos, product descriptions, regulatory information, and other visual content. This allows manufacturers to balance functional packaging performance with strong brand communication and market appeal.