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The PVB (Polyvinyl Butyral) and SGP (SentryGlas Plus) interlayer film production line is a specialized equipment designed for manufacturing high-performance laminated glass films. Known for its precision, efficiency, and stability, this production line is widely used in the production of architectural safety glass, automotive laminated glass, and bulletproof glass.
SGP glass adhesive film (ionic intermediate film): the shear mode of ionic film SGP is more than 50 times than PVB, the tear strength is 5 times than PVB, and the bearing capacity is 2 times than PVB laminated glass. Under the same load and thickness, the bending of SGP laminated glass is only 1/4 of PVB laminated glass. Compared with the laminated glass produced by PVB, the performance of laminated glass produced by SGP film is more superior.
| Model | Productis Width(mm) | Products Thickness(mm) | Max. Capacity(kg/h) |
| JWP85(SGP) | 1400-2300 | 0.76-2.28 | 400-500 |
| JWP95(SGP) | 2400-3800 | 0.76-2.28 | 500-600 |
| JWS150(PVB) | 2000-2600 | 0.38-1.52 | 400-500 |
| JWP95(PVB) | 2400-3800 | 0.38-1.52 | 500-600 |
| JWP120(PVB) | 2400-3600 | 0.38-1.52 | 1000-1200 |
| JWP130(PVB) | 2400-3800 | 0.38-1.52 | 1200-1500 |
| JWP65+JWP95(PVB) | 2000-3200 | 0.38-1.52 | 600-700 |
| Note: The specifications are subject to change without prior notice. | |||
Setting up a PVB/SGP glass interlayer film production line requires a thorough understanding of material properties, precise control over production processes, and rigorous quality control measures. By ensuring these elements are in place, manufacturers can produce high-quality interlayer films that enhance the safety and performance of laminated glass products. Jwell machine has full experience and technologies in this production line, and we are glad to offer turnkey project for our customers!
1. Raw Material Preparation
-Mixers and Blenders: For preparing the raw material mix.
PVB Resin and Additives: For PVB interlayers, raw materials include PVB resin, plasticizers, and various additives. For SGP, a specialized ionoplast polymer is used.
2. Extruder: For melting and shaping the film.
- Extrusion: The melt is extruded through a flat die to form a continuous sheet. The thickness of the film is controlled during this stage.
- Cooling: The extruded sheet passes through a cooling system, often involving oil/water cooling or chill rollers, to solidify the film.
3. Three-roller calendar system.
4. Thickness gauge(optional)
5. Cooling Systems: Oil//water cooling and chill rollers.
6. Corona Treaters: For surface treatment.
- Corona Treatment: This process increases the surface energy of the film, improving its adhesion properties. It involves exposing the film to a high-voltage electrical discharge.
7. Slitting Machines: For cutting the film into specified widths.
- Slitting: The wide film is slit into narrower rolls according to customer specifications.
8. Winders: For rolling the finished product.
- Winding: The slit films are wound into rolls for easy handling and transport. Care is taken to avoid wrinkles and ensure uniform winding.
9. Quality Control
- Inspection: The film undergoes rigorous quality control checks, including thickness measurement, clarity, color consistency, and tensile strength.
- Testing: Samples are tested for optical properties, adhesion, and impact resistance to ensure they meet industry standards.
10. Packaging and Storage
- Packaging: The finished rolls are packaged with protective materials to prevent contamination and physical damage during shipping.
- Storage: Rolls are stored in a controlled environment to maintain their quality until they are shipped to customers.
Application: The composite glass made of PVB/SGP film can absorb the impact energy without producing broken pieces. It is widely used for automotive laminated glass, bullet proof glass, sound proof glass, photovoltaic glass, color glass, etc. In addition to safety performance, it also has excellent anti ultraviolet, sound insulation, light control, heat preservation,heat insulation, shock resistance and other properties. It is an ideal safety glass composite material.
1. Architectural Glass
Used for high-safety laminated glass, providing explosion resistance and UV protection.
2. Automotive Glass
Applied in windshields and side windows, enhancing impact resistance and noise insulation.
3. Bulletproof Glass
Combined with multi-layer laminated films and glass for high-security areas such as banks and control rooms.
4. Solar Applications
Used as encapsulation material for photovoltaic glass, enhancing optical and mechanical properties.
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