What are the quality inspection methods for mixed carbon ribbon?

The quality inspection methods for mixed carbon ribbon mainly include the following aspects:

1、 Appearance inspection

Observe the surface of the carbon ribbon:

Uniformity: The surface of high-quality mixed carbon ribbon should be evenly coated with ink, without obvious white spots, pinholes or impurities, to ensure that there will be no incomplete characters or uneven color depth during printing.

Flatness: The carbon ribbon should be flat and wrinkle free to avoid printing quality issues caused by unevenness during the printing process.

Thickness consistency: Check whether the thickness on the back of the carbon ribbon is consistent, which can be preliminarily judged by comparing the diameter of a roll of carbon ribbon of the same length.

Check the paper core:

Edge running situation: The paper core should have no edge running phenomenon, otherwise it may cause the carbon ribbon to break or the edge to not print.

Inner diameter matching: The inner diameter of the paper core should match the printer shaft to ensure that the carbon ribbon can be smoothly loaded into the printer and run smoothly.

2、 Performance testing

Print test:

Printing effect: Conduct actual printing tests using mixed carbon ribbon to observe the clarity, blackness, and aesthetics of the printed content. High quality mixed carbon ribbon should be able to print clear, moderately dark, and aesthetically pleasing patterns and text.

Printing speed: Test the performance of the ribbon at different printing speeds to ensure that the ribbon can meet the speed requirements of the printer and improve work efficiency.

Scratch resistance test:

Use a sliding friction like method to scrape the printed content and evaluate the scratch resistance of the carbon ribbon. The mixed carbon ribbon should have good scratch resistance and be suitable for labels that require frequent friction.

Chemical solvent resistance test:

Alcohol resistance: After printing, leave it for a period of time (such as more than 2 hours) and use a certain weight of weight to conduct a 99% industrial alcohol friction test to evaluate the alcohol resistance of the carbon ribbon. Mixed carbon ribbons usually have good solvent resistance.

Gasoline resistance: Similarly, gasoline abrasion resistance tests can be conducted to evaluate the performance of carbon ribbons under different chemical solvents.

Heat resistance test:

Test the stability of the carbon ribbon in a high-temperature environment to ensure that it does not deform or stick together under high temperature conditions, which may affect the printing quality.

3、 Environmental adaptability testing

Temperature adaptability:

Test the performance of the carbon ribbon at different temperatures to ensure that it can operate normally within the temperature range of the printer.

Humidity adaptability:

Test the stability of carbon ribbon in different humidity environments to avoid performance degradation caused by high or low humidity.

4、 Other detection methods

Observe the wrinkling of the carbon ribbon:

A problem with the tension control system during slitting may cause wrinkling of the carbon ribbon, which in turn can affect print quality. Therefore, during the inspection, it is necessary to carefully observe whether the carbon ribbon has wrinkling phenomenon.

Check the blank situation of carbon ribbon:

Due to improper processing of the optical film, blank areas may appear on the carbon ribbon, affecting the printing effect. Special attention should be paid to this during testing.

5、 Reference testing standards

When conducting quality testing on mixed carbon ribbon, relevant national or industry standards can be referred to, such as BB/T 0061-2013 Wax based Carbon Ribbon for Packaging Labeling (although this is the standard for wax based carbon ribbon, it can provide some reference for the testing of mixed carbon ribbon). These standards typically include performance requirements, testing methods, and inspection rules for carbon ribbons, which help ensure the accuracy and reliability of test results.

In summary, the quality inspection methods for mixed carbon ribbon involve multiple aspects such as appearance inspection, performance testing, and environmental adaptability testing. By comprehensively applying these methods, the quality and performance of mixed carbon ribbon can be evaluated comprehensively, ensuring the selection of high-quality carbon ribbon products.