Waterborne date printing ribbon and preparation method thereof

Abstract

The invention relates to a thermal printing ribbon, in particular to a waterborne thermal printing ribbon for date printing and a preparation method thereof. The ribbon comprises a ribbon base and a thermal transfer ink layer coated on the ribbon base, wherein the thermal transfer ink layer comprises the following raw materials by weight percent: 10-35% of binder, 55-80% of pigment and filler and4-15% of auxiliaries. The preparation method is characterized by using water, ethanol and an alkali to dilute and mix the proportionally weighed binder, pigment, filler and auxiliaries of the ink layer uniformly, grinding, coating the powder on the surface of one side of the ribbon base and then drying the surface. The ribbon and the preparation method have the following beneficial effects: the ribbon has good detachment property and strong adaptability; the printed patterns are resistant to scrape, can resist water, steam and hydrogen peroxide and has good weather resistance; and the preparation method has no pollution and toxicity, thus being more environment-friendly.

Description

technical field [0001] The invention relates to a thermal printing ribbon, in particular to a water-based system thermal printing ribbon for date printing and a preparation method thereof. Background technique [0002] Thermal printing ribbon is a printing consumable that transfers the ink layer on this product to plastic, paper, composite film and other materials by means of heat and pressure. It is suitable for printing identification and marking information such as production date, batch number, weight, etc. on the surface of outer flexible packaging such as food, medicine, and dairy products. It can realize clear printing of Chinese, Arabic numerals, English and other characters above number 7, and the printed handwriting has the characteristics of clear, firm, scratch-resistant, and steam-resistant. [0003] At present, the date thermal printing ribbon is a solvent-based system. During the coating and drying process, a large amount of organic solvents volatilize, which...

AI Technical Summary

Problems solved by technology

It can be seen that the main component of the ribbon coating material is resin binder, so the cost is very high

In addition, because the main feature of the ribbon is anti-counterfeiting, the specific formula of the ribbon has its particularity and limitations

[0005] The patent number is 200910307313.0, and the Chinese patent titled "Environmentally friendly thermal transfer ribbon for printing cloth labels on banner machines and its preparation method" discloses a thermal transfer ribbon, which consists of a base film coated on the ribbon It consists of a release layer on one side of the base film, an ink layer coated on the release layer, and a heat-resistant backing layer coated on the other side of the base film. The thermal transfer ribbon has a multi-layer structure and the manufacturing process is complicated. ,high cost

Moreover, the application field of the thermal transfer ribbon is relatively limited.

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