Analysis of the performance and application of transparent plastic gravure ink

With the continuous improvement of packaging requirements, packaging design tends to be diversified, and colors are attracting people's attention. Most of the product packaging is highly transparent, giving people a feeling of dazzling. In the field of flexible packaging, transparent inks with high transparency are becoming more and more popular.

Transparent inks are printed on aluminum foil or aluminum foil, which is more effective. Now transparent ink has been widely used in the packaging and printing industry, specifically in high-grade packaging such as food flexible packaging, wine-making carton packaging, and tobacco carton packaging. However, some problems often occur in the actual process of transparent ink, such as: After the printing of transparent ink, there are pitting, uneven ink, and other phenomena, and can not achieve the desired effect.

Transparent ink types and characteristics

Transparent ink uses high-grade transparent paint and high-grade transparent resin as the main raw material, and various types of additives are made by fine grinding. Transparent ink is divided into table printing transparent ink and in India (composite) transparent ink. Compared with other inks, transparent ink has the characteristics of low viscosity, high transparency and brightness, bright colors, strong adhesion and strong coloring power. The fineness of transparent ink is generally less than 10μm, and its hiding power and transferability are better than other inks. However, the transparent printing ink is not as good as the printing ink transparent ink. When the packaging bag is designed, the transparent sealing ink is generally used in the heat sealing position. In India transparent ink is generally resistant to high temperatures around 120 °C.

Transparent ink selection

1. According to the different choices of printing materials to adapt to ink. Such as the table printed aluminized twist film must be selected transparent ink printing, printing BOPP film and composite aluminum film, you should use printed transparent ink. The type of printing materials determines the ink used, and even the same type of film material will vary depending on the brand and grade.

2. Transparent inks are selected based on the samples provided by the customer, including the hue and color of the ink. If you need to deploy spot color transparent ink, it is necessary to consult the ink supplier, because the deployment of spot color transparent ink is more difficult than the opaque ink.

3. Choose according to the purpose of the package. For example, whether it is resistant to heat, light, penetration, etc.

Use of transparent ink

1. The gold paper used for printing colorful flowers, color bars, ribbons, etc. is printed in transparent ink (red, yellow, green, blue, etc.) or printed with aluminum film. It is a single layer. film.

2. After the transparent ink is printed, the inner layer of the aluminized film is made into a soft packaging bag or printed with an aluminized film and then made into a twisted film. This is a film with more than two layers and is widely used in the food industry.

3. After printing, aluminizing and re-applied to paper to make cartons, cartons, New Year pictures and other high-grade packaging printing products, with waterproof, moisture-proof advantages.

4. After printing with security materials and printing with clear ink, covering the holographic film is conducive to printing products security, while making the appearance of colorful, shining. For best results, transparent inks may not be used at design time, but only partially transparent inks are used for printing.

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