Recently, we received a special demand from a Libyan customer, who requested offset ink to print on plastic bags. As we all know, plastic bags have a smooth surface and cannot be penetrated and dried. Therefore, flexographic ink is often used. Offset ink is generally used for paper and cardboard. Through the video sent by the customer, we learned that it was a small Indian workshop that their Indian friend sent him to print plastic bags with offset ink. Because offset ink is relatively cheap compared to other inks, it is very likely to be able to print with offset ink in the Indian market.

At the request of the customer, we conducted an experiment in our laboratory using ordinary transparent plastic with our LED UV ink. The result is that the ink can adhere to it, but it is not resistant to friction and will fall off when rubbed by hand. But we know that some bags on the market will have a little permeability, so it is still possible.

Through this customer inquiry and experiment, we feel that there is nothing you can't do, only what you can't think of. We need to learn from the Indian market in this regard.

当我们拿到油墨检测报告时，通常会显示印刷品的LAB值。但 LAB 价值观的含义是什么？我想很多人都无法理解。今天我们就为大家科普一下。

L 代表黑与白，也就是亮度。两种油墨比较时，一种L值比另一种高，表明它更亮。黑色油墨的亮度低，白色和黄色油墨的亮度高。

A 值代表红色和绿色。正值表示颜色偏红。如果是负数，则意味着它更环保。

B 值代表黄蓝色。正值表示淡黄色。如果为负数，则表示颜色更蓝。

一般情况下，我们的客户会根据LAB测试结果来调整油墨配方，以达到适合印刷的效果。