How

Poor UV curing leads to ink loss

Ink shedding is also closely related to the curing effect of UV ink. If the power of the UV lamp is insufficient or the printing speed is too fast, a "false dry" phenomenon may occur, which can easily lead to ink loss. The so-called 'false drying' refers to the situation where the surface of the ink has already dried/solidified, while the interior has not completely dried/solidified. It should be noted that ink drop caused by this phenomenon often occurs in printing large areas of solid patterns. This is because the solid pattern requires a large amount of ink, and the interior of the ink layer is not easily completely cured. In addition, sometimes only one color of ink printed at the same time has noticeable ink loss, with the most common being severe ink loss in black ink. This is because UV light is difficult to penetrate the black ink layer, and in most cases, black ink is arranged in the last color group for printing, with the shortest total curing time and difficult to completely cure.

When encountering such problems, you can first check whether the UV lamp has exceeded its rated service life. If it has, the lamp needs to be replaced. If the UV lamp is in normal service life, it should be due to insufficient power of the UV lamp. You can increase the power of the UV lamp appropriately or reduce the printing speed.

However, for thin film adhesive materials, this treatment may lead to new problems - when the printing speed is too low or the UV lamp power is too high, it is likely to cause deformation of the thin film adhesive materials due to significant heat exposure per unit time. When encountering such problems, it is advisable to reduce the ink supply appropriately and increase the printing speed or UV lamp power moderately to ensure thorough ink curing. If reducing the ink supply leads to virtual printing on the spot, it is necessary to use a two-stage printing method to solve the problem.

How

UV color changing label

The initial color of the UV irradiation color changing indicator label sticker is yellow before being irradiated. After being irradiated with UV light at around 365nm, the color begins to change when the irradiation dose reaches about 250-400mJ/cm2. The larger the UV irradiation dose, the darker the color and gradually approaches deep purple. The label color after UV irradiation can remain stable under normal conditions for a long time.

The UV irradiation color changing indicator label sticker is designed for detecting and monitoring UV irradiation processing management and process quality control, such as UV curing and UV sterilization process quality control, providing additional visual inspection methods for quality detection and monitoring indicators, thereby eliminating uncertainty factors. The depth of color can be used to roughly determine the amount of UV exposure or to determine whether the UV lamp needs to be replaced; By using this UV color changing indicator label, it is possible to reliably visually determine whether the product has undergone UV irradiation, thereby enabling rapid verification of product irradiation quality and effectively reducing costs. This self-adhesive label has strong adhesion and can firmly adhere to the surface of most items, but it is still recommended that users conduct adhesive performance testing before use to ensure that the adhesive position is appropriate. When using this product for applications in unconventional environments, users should conduct relevant performance tests in advance.

Laser film adhesive label

In the labeling industry, laser film adhesive labels have gradually become the new favorite of the market due to their unique visual effects and wide application fields. This type of label uses a special laser film as the surface material, and through laser engraving technology, various exquisite patterns and text are formed on the surface of the film, presenting a unique laser effect, making the label more eye-catching and attractive.

Laser film adhesive labels not only have a beautiful appearance, but also excellent performance. Its surface material has good weather resistance, water resistance, and chemical stability, and can maintain clear patterns and text in various environments. At the same time, the adhesive part of the label has been specially designed to have excellent adhesion and peel resistance, ensuring that the label can be firmly attached to the surface of the product and is not easily peeled off.

This type of label is widely used in various industries and fields such as food, beverage, medicine, daily chemical, electronics, etc. In the food industry, laser film adhesive labels can be used to label information such as production date and shelf life on packaging; In the pharmaceutical industry, it can be used for anti-counterfeiting labeling on drug packaging; In the electronics industry, it can be used for labeling information such as serial numbers and barcodes on products.

We offer comprehensive technical support, including free professional labeling solutions, advice on label materials and adhesive selection, as well as online/offline assistance from professional software and hardware engineers. Service email: andy@ownlikes.cn. In pre-sales, we leverage our extensive experience in specialty labeling projects to provide clients with the most suitable hardware solutions. Additionally, all our label barcode printers and scanners come with a three-year free warranty, demonstrating our confidence in our products.