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Pharmaceutical packaging aluminum foil printing coating should be attach importance to the problem
发布时间:2015-1-24 15:13:34 点击次数:

1. The problem is put forward

In recent years, the drug inhibits PTP aluminum foil packaging quality enhances unceasingly, the range of application is expanding, such as food packaging, health care products packaging applications. But in inhibits PTP aluminum foil printing also appeared some problems in the process of coating, and varying degrees of damage, cause bad effect, to improve the quality of aluminum foil printing and its use, this paper chose the most customer feedback quality problem, summarized several common high frequency, widespread, and presses for solution with our colleagues to discuss, in order to make the use of aluminum foil packaging machinery managers are better able to deal with because of its quality problem.


2. The concept of medicinal aluminum foil

Applied in pharmaceutical Packaging aluminum foil, foil are referred to as the pharmaceutical Packaging aluminum foil (commonly known as inhibits PTP aluminum foil), inhibits PTP aluminum foil from English PressThrough Packaging (literal translation is: through the pressure packing), industry in the more formal name for the pharmaceutical Packaging aluminum foil, also have called blister Packaging aluminum foil. For inhibits PTP aluminum foil in China to use the designation of drug packaging materials and containers registration certificate: drug packing inhibits PTP aluminum foil.

Inhibits PTP aluminum foil production is one of the main raw materials of industrial pure aluminum foil, in pharmaceutical packaging materials used in the industry known as "the original aluminum foil" or the original foil. Aluminum foil is used as a drug packaging materials, packaging materials, metal material is unique. Aluminum foil has: non-toxic, tasteless; Excellent conductivity and shading; High moisture resistance, resistance capability and taste, the most effective protection packing materials. Therefore, it is a kind of packaging material has yet to be replaced, whatever the steaming metallized film, or special film coating can completely replace the aluminum foil. In the field of modern packaging decoration, almost all need not pervious to light or high barrier composite flexible packaging materials adopt aluminum foil blocking layer. Due to the aluminum foil has both the advantages and light quality, has the certain strength, and the characteristics of good printing, can also be printed on all sorts of text or design. When made into blister packaging, is a little pressure can be crushed, patients take medicine is convenient, easy to carry.


3. The common quality problems of the aluminum foil printing coating

In the process of aluminum foil printing process, often appear some quality problems, there are classified into the common pitfalls.

3.1 the aluminum foil printing quality can not meet the standard requirements

Printing quality can not meet the standard demand is the common problem: printing blurred, dislocation, especially the overprint aluminum foil printing.

3.1.1 print blurred

The cause of: (1) the ink viscosity is too low; (2) the scraper corrugated deformation; (3) the Angle of the plate cylinder of scraper, improper; (4) aluminum foil tension adjustment is bad; (5) ink drying too slowly, (6) speed. Control and improvement method: according to the above questions to be addressed: (1) improve the ink viscosity; (2) the spatula flattening or change new as far as possible; (3) adjust the blade Angle and the entire line for scraper; (4) adjust or confirm the tension; (5) to switch to speed drying solvent, and increase the quantity of heat, in order to improve the drying speed; (6) to confirm whether the plate cylinder and aluminum foil speed coordination.