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The production process of tinplate sheet includes raw material preparation, cold rolling, pickling, annealing, electroplating tinning and post-processing. These links cooperate with each other to ensure the quality and performance of the final product.

Process of tinplate sheet tinning: 1. Pretreatment of steel sheet ● Degreasing treatment ● Pickling ● Surface activation 2. Process of electroplating tin ● Setting of electrolytic cell ● Applying current ● Control of coating thickness 3. Post-treatment process ● Passivation treatment ● Oiling

Internationally, the thickness of tinplate is usually between 0.13mm and 0.50mm, but the thickness of tinplate used for food packaging is relatively thin, usually concentrated in the range of 0.13mm to 0.30mm.

The answer is yes. Ink is not only an indispensable material in the printing process, but also the core to ensure printing quality and visual effects. Tinplate printing generally adopts lithographic printing process, which forms rich patterns, colors and texts by transferring ink to the tinplate surface.

Key factors for selecting ink suitable for tinplate printing: 1. Adhesion of ink 2. Heat resistance of ink 3. Chemical resistance of ink 4. Gloss and color performance of ink 5. Drying speed of ink 6. Environmental protection and safety of ink

The production of cookie jars involves multiple links, including raw material selection, molding processing, surface treatment and assembly and other complex steps. Among them, tinplate sheets have become the preferred material for making cookie jars due to their good corrosion resistance, plasticity and excellent printing performance.

Printed tinplate, as the name suggests, is a technical application that prints patterns, texts, logos and other contents on the surface of tinplate through a special printing process. Several main purposes of printed tinplate: 1. Enhance the visual appeal of the product 2. Provide brand promotion and identification 3. Deliver product information and instructions for use 4. Improve the anti-counterfeiting ability of packaging 5. Protect the tinplate surface and improve durability

Tinplate products in food packaging: 1. Tinplate packaging in canned food ● Canned food ● Canned soup and liquid food ● Canned high-acid food 2. Tinplate products in beverage packaging ● Metal beverage cans ● Tea cans and coffee cans 3. Tinplate products in candy and snack packaging ● Candy boxes ● Biscuit and cake cans ● Potato chip cans 4. Tinplate products in dairy and milk powder packaging ● Milk powder cans ● Dairy packaging cans 5. Tinplate packaging for condiments and oily foods ● Condiment cans ● Edible oil packaging cans

Mechanical grinding is one of the most common rust removal methods, which mainly removes rust on the surface of tinplate sheet by physical means. Commonly used tools include sandpaper, wire brushes, polishers, etc.

Tinplate is actually a composite material, its core part is low-carbon steel plate, and the surface is plated with a thin layer of tin. Therefore, tinplate is mainly composed of two materials: steel plate (iron) and tin.