Acid & Alkali Resistant Food Grade Electrolytic Tinplate with Lithographic Printing
Product Description
This specialized Electrolytic Tin Plate (SPTE) and Tin-Free Steel (TFS) product is engineered for packaging applications demanding exceptional chemical resistance alongside high-quality visual presentation. Designed to withstand aggressive contents—from acidic tomatoes and citrus fruits to alkaline products—the material provides a robust, non-toxic barrier that prevents corrosion and preserves food integrity. Furthermore, it serves as a premium substrate for vibrant, 4-color (CMYK) lithographic printing, allowing for direct, durable branding on the can surface. This combination of advanced protective properties and superior printability makes it an ideal, all-in-one solution for manufacturers of premium food cans, enhancing both product shelf life and market appeal.
Features & Characteristics
- Dual Chemical Resistance: Formulated to provide reliable protection against both acidic and alkaline food contents, preventing internal corrosion and sulfide staining for a longer shelf life.
- Food-Grade Safety & Hygiene: Manufactured from certified MR/SPCC steel with non-toxic coatings, ensuring complete safety for direct food contact and compliance with stringent hygiene standards.
- High-Definition Printability: The surface is optimally prepared for lithographic offset printing, ensuring sharp, vibrant graphics, text, and complex designs that enhance brand visibility and consumer appeal.
- Material Versatility: Offered as both traditional tinplate (SPTE) for excellent solderability and tin-free steel (TFS) for superior paint adhesion, providing cost-effective options for different production needs.
- Customizable Protection & Decoration: Can be supplied with specific internal lacquers for added chemical resistance and external finishes (Bright, Matte, Stone) to match the desired aesthetic and functional requirements.
Key Advantages
Utilizing this printed, chemically resistant tinplate streamlines production and boosts brand value. It consolidates two critical steps—base material sourcing and decoration—into one reliable supply chain. The inherent corrosion resistance minimizes the risk of can failure, protecting brand reputation. The direct-print capability creates a striking shelf presence, while the choice between SPTE and TFS allows for optimization based on manufacturing processes and budget. Full traceability is provided via Mill Certification.
Technical Parameters Table
| Parameter |
Specification |
| Product Type |
Acid/Alkali Resistant Printed Electrolytic Tinplate |
| Base Material |
MR, SPCC, Prime Tinplate / TFS |
| Available Formats |
Sheet or Coil |
| Thickness Range |
0.15mm – 0.47mm |
| Standard Width |
600mm – 1000mm |
| Temper Grades |
T1-T5, DR7, DR8, DR9, TH520, TH550 |
| Tin Coating (SPTE) |
1.1/1.1, 2.8/2.8, 5.6/5.6 g/m² (Customizable) |
| Printing Standard |
Lithographic, 4-color CMYK process |
| Key Certification |
Mill Certificate |
Frequently Asked Questions (FAQ)
Q1: How is the acid and alkali resistance achieved?
A1: The resistance is a combination of the inherent properties of the electrolytic tin or chromium coating and the application of specialized, food-grade internal lacquers. These lacquers are selected and tested to form an inert barrier against specific pH levels, providing tailored protection for your product.
Q2: Can you print complex, multi-colored designs directly onto the sheets?
A2: Yes. Our lithographic printing process supports high-resolution, full-color artwork using the CMYK color model. You can supply your design, and we will produce printed sheets ready for fabrication, ensuring color accuracy and design integrity.
Q3: Should I choose SPTE or TFS for my application?
A3: SPTE (tinplate) offers excellent overall corrosion resistance and is ideal for soldered seams. TFS provides outstanding adhesion for internal and external coatings and is highly resistant to sulfide staining, often at a lower cost. The choice depends on your product's aggressiveness and your manufacturing method.
Q4: Do you offer custom sizes and packaging?
A4: Absolutely. We can customize sheet dimensions, coil IDs, and packaging (using rust-proof paper, metal angles, and strapped pallets) to meet your specific production line and shipping requirements.
Q5: What quality documentation do you provide?
A5: We supply a detailed Mill Certificate with each shipment, confirming the chemical composition, mechanical properties, coating weight, and compliance with relevant standards. This serves as your formal quality guarantee.
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