What is Thermal Paper Roll and Slitting Machine

Many young people who struggle in first-tier cities need to devote more time and energy to study and work because of the great pressure of their work. We chose to give it to take out for lunch. When we receive our meal, the merchant will provide a note with information about the order details and price of the meal. Many people hurriedly finish their lunch and throw it into the dustbin together with the lunch package. But when we went to the hospital, we still will get this kind of note with medical analyzer information on it. Instead, we keep it well and wait for the doctor to check it again. There is a lot of knowledge hidden in this kind of thing that we often see but seldom care about. Today let’s take a deep look at it together.

The Notepaper-Thermal Paper

The notepaper that tearing out from a small printer machine is thermal paper or heat-sensitive paper. It is used in small print machines and fax machines.

Thermal printing paper is generally divided into three layers: paper base, thermal coating, protective layer. However, thermal coating and protective layer have a great impact on the final effect. The more uniform the thermal coating, the more uniform the color printed out, the better the visual effect. If the thermal coating is not uniform, it will lead to different colors and lower print quality. Whether the chemical formula of thermosensitive coating is reasonable or not directly affects the preservation time of printing paper.

Now there is the long-lasting thermal paper that can be preserved for 10 years. As the name implies, the protective coating plays a protective role, it can absorb some of the light that causes the thermal coating to produce chemical reactions, protect the thermal coating, slow down the deterioration of the printing paper, and protect the thermal parts of the printer from damage. So the thermal paper quality is very important.

Four Ways to Identify the Quality of Thermal Paper

1. Check the appearance:

If we got a small roll of thermal paper at hand, leave an eye on the paper’s appearance. From the color, we can distinguish the quality of the protective coating layer. If the paper is too white, it means that the paper is not coated properly, is likely to add too much phosphor. If we got a slightly green look surface, its quality sounds better.

If the paper looks smooth and smooth, the coating of the thermal paper is more uniform, on the contrary, it shows that the paper coating is uneven, which will seriously affect the printing effect. At the same time, if the paper looks very reflective, but also because of the addition of too much phosphor, it is best not to choose such thermal paper.

2. Comparison and identification of sunlight exposure:

This method is very simple, as long as the printed paper is smeared with the same fluorescent pen and exposed to the sun (which can accelerate the response of the thermal coating to light), and eventually, they will all turn black. the longer it takes to blacken, the longer the thermal paper will be preserved.

3. Fire roasting:

The method of fire roasting and sunlight exposure to identify, its principle is similar. You can use a lighter to slowly heat the back of the paper, and the color of the paper will change with heating. If the final color is brown, the heat-sensitive formula is unreasonable and the preservation time may be short; if small stripes or scattered colors can be seen on the paper, the coating is uneven.

On the contrary, after heating, the better-quality thermal paper will eventually appear black-green (with a little green), the color block is uniform, and the color gradually fades from the center of the heating around.

4. Printing quality:

Good thermal paper, the text is clear. Poor thermal paper, the next part is easy to be missing and difficult to read.

Medical Use Thermal Paper Roll

The utility model relates to a medical thermal paper, which has a higher color temperature and a wide color temperature range, and can meet the output of medical images.

Medical thermal paper type and common size

Popular Printer Brand for Medical Thermal Paper Printing

NIHON KOHDEN, FUKUDA, KENZ, Mind ay, HP

Daily Life Use Thermal Paper Roll

The common sizes in daily life are 57mm and 80mm wide. The 57mm wide ones are generally used in mobile POS machines or supermarket cashiers, and the 80mm wide ones are used in catering and other order printing. The thickness of the paper is the same as that of A4 paper, and it is also expressed by how many grams per square meter. There are also many commonly used thicknesses, such as 55g/ sheets, 65g/ sheets, and so on. The 65g/ below shows a roll of thermal paper with a total length of about 30 meters.

These papers are not only used on takeout orders, but also on the shopping receipts printed when we go to the supermarket, the electronic sheet affixed to the express package, and the withdrawal vouchers printed by bank ATMs are all thermal paper. The front of the paper is smoother than the back, which is also a way to distinguish between the front and the back. In addition, some supermarkets will print some discount information directly on the back, and this type of thermal paper is relatively thick.

Slitting and Rewinding Machine for Thermal Paper Roll

After the jumbo thermal paper roll taking out from the coating machine, it needs to be slit into different sizes for selling. First, slit them into 560mm, 800mm, 900mm, 1200mm, 1400mm width and rewind with about 6000m lengths. Then feeding into thermal paper slitting machine for rated length slitting and rewinding. RJ-F 600/900/1200 is a very good option. The upper blade is movable, and the lower blade is fixed. So, the slit width is depending on the lower spacer ring on the shaft. Standard the lower shaft width is 57mm, and 80mm. Other slit widths, need to be customized. According to the automation degree, the machine has Semi-automatic and fully automatic type. If you want to explore more about the machine, please feel free to go to our products page.

Long-term Exposure to Thermal Paper Harmful to People?

The color development of thermal paper is through the coating of some chemical substances on the top layer. And A4 type of ordinary paper is still different, long-term contact still has a certain amount of damage. Such being the case, if we want to reduce the harm of thermal paper to our health, we still have to choose the products of regular manufacturers. At present, there are more and more best-selling and reliable brands in the market.

List of Top Ten Brands in China’s Thermal Paper Industry in 2020

1. DELI

2. TANGO

3. Guangdong Guanhao

4. Shenzhen Comix

5. OJI (Shanghai)

6. UMI (ONHING PAPER)

7. Xiamen Anne

8. Jinxin Paper Industry (APP Group)

9. Gold Huasheng Paper (APP Group)

10. Guangbo Group

Thermal Paper Good and Bad?

Advantages: the thermal printer with thermal paper does not need to use color materials such as carbon ribbon, so it is very convenient to replace the thermal paper after the printing paper is used up.

Disadvantages: as the text on the thermal paper and other information is generated by chemical reactions, and these chemicals are generally not very stable, so the printed notes will be lighter and lighter with the extension of storage time. If what you print is very important to you, you can’t want to keep it for a long time.

How to Tell if it is Thermal Paper?

The identification of thermal paper can be scratched on it with your fingernails. if the area where the nails slide turns black, it means that the paper is thermal paper. In addition, the flames of the lighter can pass quickly, and the front of the lighter will quickly turn black.

Now the thermal paper is not as small as we think, right? Hope the knowledge could inspire you a lot. If you want to know more about how to start a thermal paper slitting business, welcome to reach us here.