BOPET Twist Film For Small sachet packaging

The China BOPET Twist Film for small sachet packaging supplied by Jincheng manufacturer is produced using a two-way stretching and shaping modification process. It is factory-equipped with stable dual-sided differential corona treatment on both sides. The inner side of the film after lamination and printing has a stable durometer value ranging from 52 to 54, while the outer side, which is rolled up, maintains a durometer value of 42 to 46. The long-term storage of ink and glue adhesion performance remains unchanged. The transparent version is transparent and clean, allowing the original appearance of the food to be displayed directly; the aluminized version comes with a metal barrier layer, which blocks light, retains freshness, and prevents moisture and oxidation.

The core optimized formula addresses common problems such as film knotting and rebound, easy tearing, and machine stalling at high speeds. After twisting, the locking shape remains stable and does not easily loosen. It is suitable for fully automatic and semi-automatic high-speed knotting packaging lines. The complete set comes with five standardized packaging solutions, taking into account both domestic food factory batch production and cross-border snack packaging for overseas shipments, and complies with food packaging safety standards.

Differential Advantage

Optimized the thickness of the thin model to achieve lightweight and small bag optimization, without any redundant thick specifications

Strengthened the knot memory shaping, with an elasticity rate much lower than that of the industry-standard film

Upgraded the base material of the thin model to have anti-tear properties, making it less likely to tear when used in high-speed small bag machines

Covered both transparent and aluminum-coated routes to meet the needs of small packaging

Long-lasting and stable corona treatment, with no color fading or layering in small bag color printing

Factory standard performance measurement

1. Twisting, shaping and rebound test

BOPET Twist Film for small sachet packaging - simulated fully automatic equipment standard twisting number packaging, stored at room temperature for 30 days, observing the shape. The film shows no obvious rebound or loosening, and the shaping integrity meets the standard; compared with ordinary twisted film, the defective rate of loose packaging decreased by more than 80% under the same conditions.

2. High-speed machine continuous durability test

Continuous film running test for narrow-width small bag packaging machine, two types of films with 19μm and 23μm running smoothly without deviation, no adhesion, no lateral tearing. It is suitable for high-frequency small particle packaging assembly lines, with extremely low production loss.

3. Tear resistance strength comparison test

Simultaneous tensile tearing test of competing products of the same thickness. This product has higher breaking tensile force. During the process of particle edge corner squeezing and twisting pulling, it is less likely to have holes and material leakage. It is suitable for small hard food packaging with sharp edges.

4. Double-sided corona storage stability test

Sampling detection of deflection values at the head, tail and middle of the roll material. The numerical fluctuation is extremely small. After retesting at room temperature for 6 months, the corona attenuation is weak, and the adhesion of color printing and dry composite of small bags remains stable.

5. Aluminum-coated model barrier performance special test

Water vapor and oxygen permeability test of aluminum-coated twisted film. The aluminum layer is uniform and there is no leakage of coating. It effectively isolates moisture and light, delays the oxidation and deterioration of small packaged foods such as tea and meat particles, and extends the shelf life preservation period.

Product core features

1. Thin and lightweight design, suitable for small independent bags

2. Strong shaping memory, knot-locking shape remains stable and durable

3. Tear-resistant and not prone to damage, reducing production scrap rate

4. Double-sided stable corona treatment, supporting color printing and laminating for further processing

5. Two styles for flexible selection, covering display and freshness preservation scenarios

6. Multi-layer protective packaging, eliminating film scratches during transportation