Technical Control of Pharmaceutical Label Products (I)

The pharmaceutical label is an indispensable product label for pharmaceuticals. It can be said that it is also an identity card for pharmaceutical products and an important production process in the packaging and printing process.

The main contents of the medical label should usually include: product name, symptom adaption, production date, production batch number, specifications, quantity, precautions, shelf life, usage usage, storage environment requirements, and manufacturer's name. Product labels are printed in monochrome, but also in multi-color overprinting or overprinting; in offset printing, in coated paper and in adhesive paper.

From the perspective of healthy and safe use of the product, printing quality control of medical labels is a very important technical link. Therefore, the instructions in the product layout must be clear and legible, and the printed colors must be accurate and consistent.

It can be seen that the medical label should have the use requirements that are easy to recognize and have good anti-counterfeiting effect. A considerable part of the medical labels are printed using the traditional letterpress printing process. In the past, in the production practice of the machine, the author had many printed medical label products and had personal experience in the technology of letterpress printing of medical product labels. Here, we will discuss the process control technology experience with the letterpress printing process.

First, the rational design of the printing color of the medical label layout

Pharmaceutical products are the sustenance of safety and health. Therefore, the rational design of the color of printed pages is very important. Medicinal labels generally use a neutral series of colors, in which the print layout with cool colors can give the patient a sense of tranquility. The design of pale red, gold-red, and gold-colored printing layouts allows the patient to feel the spirit, yang, health, and vitality. Blue and silver layouts give the patient a sense of security.

The design of the printing layout color can also be based on the difference in the characteristics of the use of drugs. Among the nourishing and nutrient-type drugs, the printing plate is designed mainly in gold, bronze, brown or red, and is appropriately matched with other colors. Analgesics, sedation, sleeping, antihypertensive and cardiovascular diseases should be based on green and blue color.

An insect repellent is packaged in white and is lightly colored. Anti-inflammatory drugs such as cough and phlegm, Qingliang Jiedu granules and other labels are generally printed green. The rational design of medical label printing color can make the patient feel good in psychophysiology, and make the product packaging play a better use effect.

Second, the use of three primary colors change the principle of accurate ink deployment

The pure color of medical label printing is the basic requirement for product quality. Therefore, how to make accurate ink deployment is a very important technical link. According to the principles of the three primary colors, except for gold and silver colors (substrates are materials for aluminum spray paper), any color can be prepared by mixing different proportions of the three primary colors.

If the three primary inks are blended in equal amounts, they can become nearly black. Tricolor inks are mixed in the same amount and added with different proportions of white ink to be formulated into light gray inks of various shades. If the three primary color inks are mixed in various proportions, the inter-color or multi-colors of a plurality of different hue can be prepared, but the hue thereof is biased to a large proportion of the primary color hue.

If the two primary inks are mixed in the same amount, they can be adjusted to become the standard inter-color. After the two primary inks are blended in different proportions, they can be mixed into a variety of different hue, but the hue tends to a large proportion of the primary colors. Hue.

In addition, in any color ink, the hue becomes brighter after adding the white ink. Conversely, after adding black ink, the hue becomes dark. The method of blending ink is appropriate, which directly affects the color quality of printing. Therefore, when deploying ink, it is necessary to analyze the excellent phase first according to the original document, and determine which of the inks should be used for deployment.

For example, to adjust the lake blue ink, based on visual experience plus practical experience can be initially determined, in which the white ink is the main color, peacock blue is the auxiliary color should be slightly increased, such as deeper and more subtle plus product blue. As long as the main color is determined, the other colors are auxiliary colors, which should be gradually added and stirred evenly. Then use two pieces of paper (same as printing paper). One of the papers is coated with a little bit of adjusted ink. When the other paper is used to scrape it to approximately the same thickness as the printed ink layer, it is compared with the original. is it suitable. When comparing the samples, it is necessary to look at the relatively thin and light parts of the ink layer on the paper surface in order to see more accurately. (To be continued)