Guangdong materials mainly substrate has a tin plate, chrome plate and aluminium plate.Tin plate is made of low carbon steel by cold rolling, annealing and leveling, tin plating, soft melting, passivation and oil process is made.
Adjust the ingot, the content of some elements in or change that some appropriate process parameters, can be made into different corrosion characteristics or to adapt to the different ways can the tin plate.
Characteristic and advantage of tinplate material can: 1. 2. Opaque sex good sealing 3. Reduction of tin 4. Provide a source of effective iron 5. Recycled and reused. In line with international environmental requirements, conform to the trend of future products 6. Good strong, protective, not deformation, earthquake resistance, fireproof, resistant to high temperature and high pressure.
Because with these attributes, the tin case provide a besides the heat, airtight system completely isolated from the environment factors, avoid color food deterioration due to light, oxygen, moisture, also not because of the aroma through thin or by the environment through pollution stale smell, food storage stability is superior to other packaging material, vitamin C has the highest survival rate, nutrient preservation sex is the best.
Tin of application: the application of tin is very broad, from as a food and beverage packaging material to oil tank, chemical tanks and other miscellaneous cans, advantages and characteristics of tinplate provide contents on the physical and chemical properties of good protection. The existing container including tin, aluminum cans, paper and plastic container, the container recycling characteristics vary, but on the recycling in a tin can for optimal than other packing material container.
Based on international environmental management standards ISO - 14000 implementation, low pollution, recycled, save resources characteristics of tinplate cans, packaging purposes in the future, there will be more broad space for development.
A, the characteristics of the tinplate offset printing Tinplate printing to offset printing, but compared with the general offset printing, and has its own features:
Pieces of tinplate printing substrates is all kinds of sheet metal.Tinplate printing substrates used at present, the commonly used with tin plating steel sheet (also known as tinplate), chrome plated steel sheet, the common sheet steel, aluminum alloy sheet, etc.The sheet metal according to the different hardness, can be divided into rigid iron, neutral tin and soft iron 3 kinds.Aluminum alloy sheet is soft, thin steel sheet is a neutral, hard chrome plated steel sheet.In the printing process, should inspect the hard and soft substrates, roller pressure regulation and select the appropriate packing material.
Pieces of coating for iron printing quality has played a pivotal role.Coating layer can increase iron and printing ink adhesion, and the ink membrane layer of protection.
In pieces with special printing ink.Because of tinplate printing substrates surface is smooth, not have absorption ability, tinplate printing ink depend on oxidation of conjunctiva and volatile dry.At the same time, tinplate printing post-press often can use, for printing ink, high temperature resistance, corrosion resistance, cooking, non-toxic harmless.
Mixer printing operation is different from general offset printing.Printer should consider when making blowing blow force and suction nozzle of the suction mouth, at the same time in the feed to add horseshoe magnet, to overcome the adsorption force between the sheet metal.Operation process, according to the different weight of substrates, adjust the blowing and suction nozzle of gas.Roller pressure adjustment is the key to the operation.Besides according to the thickness of substrates, consider the transfer of network condition.
Tin cans are: : first, welding a drum (1) the scope of application: suitable for dairy products, health care products, food flavoring, such as various powder POTS.
(2) production process characteristics: 1, printing graphic, bright space clean, dust-free workshop production, under the food hygienic requirements.
2, can cover the Swiss international advanced manufacturing technology, bei mouth circles can add anti-counterfeiting mark on the aluminum foil.
3, welding line protection, nitride body besmear edible oil or gold in a transparent light oil, weld the introduction of Germany automatic roller coating device for internal and external filling besmear, body inside coating resistance to sulfur acid, good corrosion resistance.
4, the body can be set according to need to strengthen, tanks good strength, high impact resistance, convenient storage and transportation.
5, back cover (lid) smooth, high intensity, and good sealing performance.(3) delivery time: 8 to 15 days, new products and old products 6-10 days.
Second, special-shaped bone tank (1) the scope of application: mainly has the candy, moon cakes, biscuits, tea packaging, wine, electronic products, all kinds of gift packaging such as cans.
(2) production process characteristics: 1, outside printing graphic exquisite, distinct, layout clean, besmear edible gold oil or light oil, high-grade quality, under the food hygienic requirements.2, Japan, Hong Kong mould technology advanced production technology, the buckle lap closely, sealing smooth, smooth lines clear.3, the cover of the tank or tank body can hit the bump graphic symbol, accurate positioning, stereo sense is strong.(3) delivery time: 10-20 days, new products and old products 7 to 10 days.