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With the advance of the implementation of the new cigarette health and safety requirements of HP, cigarette factory cigarette solvent residue of indicators made more stringent requirements, how to reduce the residual solvents to be cigarette packets cigarette packets The current top priority of printing companies. It is well known that the printing of cigarette packets is mainly gravure printing, while the conventional gravure printing uses solvent-based inks, which is the "culprit" quality control of the residual solvent of the cigarette packets, while the aqueous inks use water as the main solvent and water-based inks instead of solvents. The type of ink can effectively solve the problem of high residual solvent of the cigarette packet. Plate

Below, take a cigarette packet product of our company as an example to discuss the application of gravure aqueous ink in the field of cigarette package printing. Wine packaging

Process improvement program quality control

The printing scheme of the cigarette packet box product is: 4-color pattern + 2-color solid spot color + glazing (as shown in Fig. 1). Among them, overprinting , the spot color part of the field accounts for about 90% of the total area of ​​the product, and it is changed to water-based ink printing; the 4-color pattern is still printed with solvent-based ink. activity

The purpose of this process improvement is to solve the problem of high solvent residue in the cigarette packet box product. In view of the disadvantages of slow drying speed and poor leveling in the ground, compared with solvent-based inks, the ratio of the first to the first is The larger area of ​​the spot color section was improved. color

Process adjustment X-Rite

For water-based ink is slow drying, site leveling the difference between these two major drawbacks unemployment in our business processes were adjusted as follows. overpacked

1. Slow drying speed packaging machinery

Drying performance is one of the main indicators of water-based inks. The drying speed of the aqueous ink is slower than that of the solvent-based ink, and once the drying is insufficient, an ink sticking phenomenon occurs. book review

Solution: 1 Increase the drying temperature from the original 52 ° C to 62 ° C while the printing speed is kept at 156 m / min; 2 change the shallow mesh to change the depth of the gravure cell from the original 53 μm to 43 μm. After the above-mentioned process adjustment electronic supervision code , the drying performance of the water-based ink has been improved to some extent. Lekai two glue

2. The field leveling is poor Fuji Xerox

Water-based inks use water as the main solvent, but the surface tension of water is large, which makes the wetting of the printing materials and pigments difficult, resulting in poor leveling of the final printed products. Ink supply

Solution: 1 Ink supplier cooperated with our company to carry out relevant tests, adjust the formulation and packaging safety of water-based ink, reduce the surface tension of water-based ink, and enable the water-based ink to fully wet and level on the surface of the paper, and transfer it evenly.

2; adjust the ratio of water and ethanol, increase the viscosity of water-based ink and strictly control the viscosity change, while increasing the oven temperature packaging design , increase the amount of blowing, to ensure that the water-based ink is dry thoroughly; 3 in the gravure process using a small number of ways to add The new ink ensures the stability of the pH of the aqueous ink. Three-dimensional printing

Stainless Steel Bottle

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Our Stainless Steel Bottles are mostly Stainless Steel Vacuum Water Bottles. They have a double-wall vacuum treatment, so they can ensure your drink keeps as it is. And you don't need to worry about getting your hands cold or hot.

Stainless Steel Single Wall Bottle has a single wall. It sacrifices thermal insulation and improves portability. Holding it in your hand all the time will not cause any discomfort.

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Ningbo Auland International Co.,Ltd. , https://www.everwinbottle.com