Single Wound POF Shrink Film

Yuhong produces Single Wound POF Shrink Film, also known as single wound shrink wrap or POF single wound film, for heat shrink packaging applications. This heat shrink single wound film is supplied as a single flat roll without pre-folded edges, allowing operators to cut the film to the required length for each product. It is also referred to as industrial single wound POF wrap in industrial packaging applications. This structure helps reduce excess film consumption and simplifies changeovers between different packaging jobs.

Technical Specifications

Every roll is wound evenly and tightly to prevent lopsided feeding and ensure consistent performance.

What Does "Single Wound" Mean?

Single Wound (SW) POF Shrink Film is manufactured as a single-layer flat roll, similar to standard plastic wrap. Unlike Center-Fold film, which is pre-folded along a center line to create a V-shaped pocket, Single Wound film comes as one continuous flat layer with no pre-folded edges.

This structure allows operators to cut the film to any required length, making it suitable for sleeve wrapping, multi-packing, and automated horizontal packaging lines.

Single Wound vs. Center-Fold POF

Advantages of Single Wound POF Film

1. Flexible Cut Lengths

Operators can cut the film to the exact length required for each product, allowing a precise fit for items of varying dimensions.

2. Efficient Material Usage

Because the film is cut to order, there is no excess overlap from pre-folded edges. This can help reduce material consumption per package, especially for longer or irregularly sized items.

3. Faster Job Changeovers

Switching between product sizes requires only adjusting the cutting length on the machine, rather than changing roll types or re-threading a center-fold system, which reduces downtime.

4. Reliable Machinability

The flat, single-layer structure feeds smoothly through automated packaging equipment. Consistent winding and stable shrink performance support reliable operation on high-speed lines.

5. Versatile Application Range

Single Wound POF is suitable for sleeve wrapping, flat items, horizontal flow-pack applications, and multi-packing products of the same or mixed heights on a single tray.

6. Practical for Standard Operations

By allowing precise cutting and reducing unnecessary overlap, Single Wound POF offers a practical balance of performance and economy for daily heat shrink packaging work.

How to Select Single Wound POF Shrink Film

The following table provides general guidance for choosing the right film specifications based on product and machine conditions.

Application Fields

Manufacturing Process and Quality Control

Yuhong has produced packaging films since 2008. The production process for Single Wound POF Shrink Film includes:

• Raw material screening: Virgin POF resin is sourced with batch documentation to ensure consistent material quality.
• Extrusion forming: Single-layer extrusion equipment produces film with controlled thickness across the roll.
• Cutting and winding: Tension is adjusted during winding to prevent loose layers or telescoping.
• Batch testing: Each production run is checked for thickness uniformity, shrinkage rate, tensile strength, elongation, puncture resistance, and optical properties.
• Compliance documentation: Safety and compliance records are maintained for raw materials and finished rolls.

Quality control focuses on the following parameters:

• Thickness uniformity and width tolerance
• Shrinkage rate in machine and transverse directions
• Tensile strength and elongation at break
• Puncture resistance
• Optical properties including haze and gloss
• Roll winding quality and edge alignment

All products are manufactured under an ISO 9001:2015 certified quality management system. Relevant test reports and compliance documents can be provided for customer audits.

Why Choose Yuhong

Xiamen Yuhong Plastic Products Co., Ltd. operates a 3,000 m² production facility with more than 50 employees. The company has an annual production capacity of approximately 5,000 tons and serves customers in Southeast Asia, Europe, North America, and other regions.

Yuhong supports OEM and custom orders. Standard product lines include stretch films, POF shrink films, and related packaging materials. For Single Wound POF Shrink Film, the factory can adjust width, thickness, roll length, core size, and packaging according to customer requirements.

Frequently Asked Questions

1. Is Single Wound POF film suitable for food packaging?

Yes, food-grade Single Wound POF film can be supplied. The material meets FDA and EU food contact requirements. Please specify food contact needs when ordering.

2. How should Single Wound POF film be stored?

Store rolls in a cool, dry place away from direct sunlight and heat sources. Recommended storage conditions are 15–30°C and 40–70% relative humidity. Under proper conditions, the film remains stable for 12–18 months.

3. Can this film be used on high-speed packaging machines?

Yes. Single Wound POF film is compatible with most horizontal flow wrappers and sleeve sealing machines. It is important to confirm roll width, core diameter, and maximum roll diameter match your equipment specifications.

4. What information is needed for a custom order?

For custom specifications, please provide required width, thickness, roll length, core size, machine type, and any food contact or printing requirements. Our technical team will confirm feasibility and provide a timeline.

5. Do you provide samples?

Sample rolls can be arranged for evaluation. Please contact our sales team with your product dimensions and machine type to receive the most suitable sample.