BOPET EVA Thermal Film For Industrial Lamination

The China BOPET EVA Thermal Film for Industrial Lamination produced by Jincheng Manufacturer covers a full range of industrial thicknesses from 12μm to 150μm. It is equipped with multiple precise EVA coating thickness settings of 06, 08, 12, 15, 18, and 23, which can meet various differentiated industrial demands such as thin insulation film, medium conventional board composite, and thick industrial wear-resistant protection. The original film is highly transparent, and after hot-pressing composite, it forms a uniform matte industrial protective surface layer, which is scratch-resistant, fold-resistant, and resistant to friction.

The factory adopts standardized double-sided differential corona treatment, with a stable thermal pressing bonding surface of 52-54 dynes, ensuring extremely strong adhesion between the EVA adhesive layer and industrial sheets and films; the outer side has a bonding strength of 42-46 dynes. The film surface is flat and smooth, anti-static and anti-sticking. The material feeding of high-speed industrial composite equipment does not deviate or get stuck on the film. The overall industrial performance is outstanding: high bonding strength, no layering during long-term composite, no edge or corner curling, no cracking after repeated bending, and suitable for all-weather industrial continuous composite production.

Our BOPET EVA Thermal Film for Industrial Lamination is widely applicable to industrial insulation lamination, hardboard composite, plastic film lamination, advertising spray painting mounting film, decorative building materials lamination, and high-end printing paper reinforcement lamination. It is compatible with various fully automatic and semi-automatic industrial laminating production lines, and is equipped with a five-level industrial-specific packaging system to meet the domestic heavy industry mass production and cross-border industrial consumable export standards.

Product manufacturing process

1. Selection and quality control of raw materials

Select high-purity industrial-grade bidirectional stretched BOPET raw sheets without recycled material contamination. Strictly control the tensile strength and flatness of the base material to prevent common problems such as uneven thickness, insufficient toughness, and easy tearing in industrial laminated films. This ensures compatibility with industrial high-strength composite conditions.

2. Precise unwinding and pre-electrostatic activation of the base material

Using a fully automatic constant tension unwinding system to uniformly unwind the film, and perform high-precision electrostatic activation treatment on the bonding surface. Precisely lock the surface tension parameters to provide strong adhesion for the subsequent EVA hot melt coating, avoiding delamination and layer separation during long-term industrial use.

3. EVA hot melt homogeneous extrusion pre-coating

Using industrial-grade high-temperature hot melt extrusion technology, without solvents and zero pollution, evenly apply the molten EVA gel on the PET base membrane surface. The coating thickness is controlled by computer closed-loop control, with extremely small errors, ensuring uniformity of the adhesive layer in different batches and guaranteeing the stability of industrial composite.

4. Gradient constant temperature cooling and structural curing

The pre-coated film enters the gradient constant temperature cooling system, slowly curing and shaping, allowing the EVA layer to deeply combine with the PET base membrane molecules, forming a high-strength composite structure, significantly improving the folding resistance, peel resistance, and resistance to high and low temperatures, and adapting to complex industrial environments.

5. Double-sided precise electrostatic adjustment

Perform differentiated electrostatic fine adjustment on both sides of the finished product. Lock the inner side at 52-54 dynes and the outer side at 42-46 dynes. Standardize the industrial deep processing parameters to adapt to subsequent multi-layer composite, printing, and bonding processes.

6. Online industrial performance full inspection

Automated equipment detects film thickness, adhesive thickness, flatness, adhesion, tensile toughness, and electrostatic value. Manual inspection checks folding resistance and peel strength. Reject defective rolls to ensure each roll of film meets the industrial composite production standards.

7. Precise cutting and industrial-grade packaging

Cut precisely according to the industrial customer's equipment width, and re-roll without dust. Match five protective schemes for order scenarios: simple packaging, horizontal tray, vertical tray, suspended tray, and export tray. Prevent transportation scratches, moisture, and deformation. The delivered rolls can be directly used for production.

Parameters

FAQ

Q1: Compared to ordinary pre-coated films, what is the core difference of BOPET EVA Thermal Film for Industrial Lamination?

The industrial version has optimized anti-peeling, tear resistance, and weather resistance properties. The adhesive layer is more closely bonded, suitable for long-term industrial laminations, stacking, and temperature difference conditions. It is less likely to peel or curl, and the production stability is much higher than that of ordinary packaging pre-coated films.

Q2: How to select different thicknesses and adhesive thicknesses?

Thin and lightweight 12-25μm, suitable for insulating films, labels, and thin paper composite; 30-75μm medium-thick version suitable for regular industrial sheets, advertising laminating films; 90-150μm thick version + high adhesive suitable for heavy-duty laminations, wear-resistant protection scenarios.

Q3: Does it fit for fully automatic industrial laminating production lines?

It is fully compatible. The film surface tension is uniform, the corona parameters are stable, the material flows smoothly without deviation or sticking to the rollers, the heat pressing bonding has a high tolerance rate, and it supports 24-hour continuous industrial production, with an extremely low defect rate.

Q4: Will the matte coating affect the subsequent processing of industrial sheets?

No, the matte surface layer is fine and flat, does not affect cutting, bending, stamping, and cutting, and can enhance the wear resistance, scratch resistance, and anti-fouling performance of the sheet, suitable for various industrial deep processing.

Q5: Will the bonding performance decline after long-term storage?

Under compliant drying storage conditions, the corona value and the stability of the EVA adhesive layer are strong. Within 6 months of machine operation, the laminating is still firm, without delamination, blistering, or layering problems.

Q6: Can it be used for industrial insulation, moisture-proof protection laminations?

Yes, this product has a dense material and good sealing performance. It has excellent moisture-proof, dust-proof, and insulation protection properties, and is a high-quality composite base material for industrial electrical insulation, sheet moisture-proofing, and equipment protection.

Q7: What kind of packaging is suitable for large-scale industrial export orders?

For cross-border shipping and long-distance foreign trade, suspension supports or export moisture-proof supports are preferred, which effectively prevent pressure, moisture, and film surface damage, ensuring the intact quality of industrial rolls during export.