What is the composition of the password coating of the scratch card and does it contain aluminum?

Ink color: silver, silver-gray, green, black. Ink scraping:

Scratch card inks can be easily scraped off with hard objects or fingernails. Applicable instructions: The lithographic offset method can be used for printing, but it is best to choose an opaque substrate to increase its guarantee.

Absorbent substrates should be avoided. Use scratch card ink to add UV varnish to the surface of the substrate first, which can make the scraping effect better. If it is printed on a good quality copper paper, it can also achieve the desired effect.

Bottom printing: when printing lottery tickets and other patterns or numbers in the lithographic offset method, excessive use of powder spraying may cause a convex effect, if the scratch card ink can not completely cover the winning pattern or number, the powder should be wiped off with a cloth before printing or avoid dusting. Before printing scratch card ink, the lithographic ink layer must be completely hardened, otherwise it will be softened by the solvent of scratch card ink, and the lottery pattern or password will be leaked.

The bottom layer (pattern or winning number) must be completely dry before the coating can be imprinted. Screen printing materials: If the scratch card ink has a certain thickness, the ink layer will be easily scraped off, and the screen printing scratch card ink is most suitable for screen printing with about 150-200 mesh.

Both polyurethane and rubber squeegee can be used. Dilution: Basically no dilution; If necessary, it can be diluted with no more than 8 diluent.

Generally, there is no need to use slow drying agents. Coverage: Coverage up to 36 square meters per kilogram.

Main ingredients:1Resin, lipophilic 2pigments, mainly aluminum powder plus titanium dioxide, and a small amount of calcium carbonate 3There are also a small amount of additives.

Scratch card ink has the following characteristics: 1. High hiding power, with excellent confidentiality effect; 2. Good wear resistance; 3. Easy to scrape off; 4. The ink is automatically rewound when scraped off, which is not easy to fall off in powder form, which is more environmentally friendly; 5. After printing, the ink will not increase the difficulty of scraping with storage time; 6. Hot air drying. Printing method:

Scratch card inks are only suitable for screen printing.

Three major ingredients:1Resinous, lipophilic.

2.pigments, mainly aluminum powder plus titanium dioxide, and a small amount of calcium carbonate 3There are also a small amount of additives.

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1.Resin, lipophilic 2pigments, mainly aluminum powder plus titanium dioxide, and a small amount of calcium carbonate 3There are also a small amount of additives.

Aluminum powder plus titanium dioxide, as well as a small amount of calcium carbonate and a small amount of additives.

Main ingredients:1Resin, lipophilic 2pigments, mainly aluminum powder plus titanium dioxide, and a small amount of calcium carbonate 3There are also a small number of additives.

For reference: The material composition is mainly ink.

Luminous ink: Luminous ink is made by high-tech means using alkaline earth aluminate and silicate materials activated by rare earth elements. It has the functions of light absorption, light storage and luminescence, absorbing all kinds of visible light for 10-20 minutes, and it can continuously emit light in the dark for more than 12 hours.

Its luminous brightness and duration are more than 30 times that of traditional luminescent materials represented by zinc sulfide. 6. Scratch card ink 7. Carbon paper ink.

It is a special type of screen ink. The ink has the characteristics of opacity, good hiding power, easy to scrape, etc., and is widely used in lottery, lottery tickets, code anti-counterfeiting identification, ** cards, confidential documents, quick display books and children's scratch paintings, etc., with a wide range of applications.

It is a kind of special ink, which has the characteristics of opacity, strong shading, easy to scratch off, etc., and is used for anti-counterfeiting lotteries, lottery tickets, anti-counterfeiting labels of anti-counterfeiting codes, ** recharge cards, etc. It will be used for anti-counterfeiting often on anti-counterfeiting printed materials, such as covering anti-counterfeiting codes, awards, passwords, etc.

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I specialize in paper scratch cards and password cards. In this case, as you said, with a printer and software, you can do it. However, if you want to spray accurately, it is estimated that you also need special coding software! Contact me if you have any questions. 1447322269（qq)

The production of cards for this kind of purpose generally belongs to telecommunications, finance and gaming purposes, and is denominational and valuable**; At a minimum, a blank card is also an important blank credential; There are strict production, distribution and sales management systems; Generally, it must be produced in manufacturers that have been specially certified by the above industries. You need to have a pattern printed on the front of the card, which is something that few people can do; IMHO, what is your motive for making this little bit of card, and you have to manually put a scratch film covering the password afterwards?

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Method steps.

1. A coin. Usually the most common method is to scratch it with a coin, preferably a dollar coin, both pentagonal and dime coins are a bit small and not very convenient to use. Don't scratch with your fingernails.

Something that looks hard but is too thin won't come off easily. Personally, I feel very uncomfortable.

2. Sand it with sandpaper. The coating quality of some scratch cards may not be very good, sometimes scraped off with coins, too much force will cause damage, we can try to sandpaper sanding, first gently sand, mainly to prevent the words or numbers below from being scratched off. Look at the appropriate intensity before the words or numbers.

3. Use a blunt knife. Or use a knife on the blunt side, the sharp side can easily scrape off the text or graphics, causing unnecessary losses. Gently scraping the coating with a blunt side should be effective.

4. In other cases. Some scratch cards will be difficult to scrape off if the coating is wet, you can find a way to dry the scratch card by putting it in a dry place to dry the air or using a hair dryer to dry, and then scraping it with the above method.

5. The coating material of the scratch card is not good, some coating inks or other materials are not good, it will be difficult to scrape after a long time, there is no special way, we had better buy less to try, buy more if the effect is good, don't buy again.

6. Purchased notes. Try to buy a new scratch card from your boss instead of the old one. At the same time, be careful that some scratch cards are fake, and the natural coating is also scratched, so try to buy them at regular sales stores.

7. Contact the merchant. Some scratch cards are organized by the organizers, if the scratch can't be scraped, you can contact the relevant person in charge and the merchant to see if you can exchange or give some compensation.

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Yes, it is made of special materials and contains carcinogens.

Generally, the coating on the scratch card scratch card is screen printing ink, also called scratch ink, the earliest is silver ink, and now red, yellow, blue, black and white and gold are available, so it is generally habitually called scratch silver, and the screen printing scratch ink on the printed color card is on the line.

That coating is an anti-counterfeiting coating, which is used to cover passwords or awards, and is generally made by looking for security printing.