(I) Appearance judgment
The appearance characteristics of thermal cash register paper can reflect its quality to a certain extent. Generally speaking, if the paper is slightly green, the quality is usually better. This is because the formula of the protective coating and thermal coating of such paper is relatively reasonable. If the paper is very white, it is likely that too much fluorescent powder has been added. Paper with too much fluorescent powder added may have problems with its protective coating and thermal coating, which will not only affect the printing effect, but also may cause potential harm to human health. In addition, the smoothness of the paper is also an important criterion for judging quality. Smooth and flat paper means that the coating of the thermal paper is more uniform, the printing effect will be better, and it can also reduce the wear and tear on the printing equipment. On the contrary, if the paper is not smooth or looks uneven, then the uneven coating of the paper will seriously affect the printing effect. At the same time, if the paper looks like it reflects light very strongly, it is also because too much fluorescent powder has been added, and such paper is not recommended.
(II) Fire roasting identification
Baking the back of the paper with fire is an effective way to identify the quality of thermal cash register paper. When the back of the paper is heated with fire, if the color on the paper is brown, it means that the thermal formula is not reasonable and the storage time may be short. If there are fine stripes or uneven color blocks on the black part of the paper, it means that the coating is uneven. After heating, the better quality paper should be black-green (with a little green), and the color blocks are uniform, and the color gradually fades from the center of the heating to the surrounding.
(III) Color storage time after printing
The color storage time of thermal cash register paper varies according to different needs. For general-purpose cash register paper, 6 months or 1 year of color storage time is sufficient. Short-term cash register paper can be stored for only 3 days, and can also be stored for 32 years (for long-term archive storage). For different usage scenarios, we can choose thermal cash register paper with appropriate storage time according to actual needs. For example, some small shops or temporary stalls do not have high requirements for the storage time of cash register paper, and can choose cash register paper with a shorter storage time to reduce costs. For some enterprises or institutions that need to keep transaction records for a long time, they need to choose cash register paper with a longer storage time.
(IV) Functional requirements are met
Different scenarios have different requirements for the functions of cash register paper. For example, restaurants, KTVs and other places have the need to issue orders once and deliver multiple times, so scratch-developed color cash register paper can be selected. When printing in the kitchen, the oil-proof function should also be considered to prevent the paper from being contaminated by oil and affecting the printing effect and readability. For export products, logistics mail and other scenarios, three-proof functions (waterproof, oil-proof, and scratch-proof) should be considered to ensure that the quality of the cash register paper is not affected during transportation and storage. Guanwei recommends cash register paper for you, following the principle of just meeting the needs, so that the purchased products will not fail to meet the use needs, and no extra costs will be spent on unused functions.
(V) Pay attention to technical indicators
Technical indicators such as whiteness, smoothness, color development performance, and color development storage time after printing are key parameters for evaluating the quality of a thermal cash register paper. When purchasing, customers should pay attention to these indicators. Generally speaking, the higher the technical parameters, the better the paper quality and the more expensive the price. For example, thermal cash register paper with good smoothness can reduce the wear of the print head and achieve better printing results. Paper with strong color rendering performance can print clear and easy-to-read characters. Paper with moderate whiteness will not be too white to affect the quality by adding too much fluorescent powder, nor will it be too yellow to affect the appearance. Cash register paper with long color preservation time after printing can meet the needs of some people who need to keep transaction records for a long time.
Post time: Nov-15-2024