Pharmaceutical tubes are mainly divided into: PE extrusion tubes, aluminum-plastic tubes, and pure aluminum tubes. Usually, most of the processes used in tube packaging are offset printing, screen printing and hot embossing. Common Pharmaceutical Tube printing process is: dust removal surface pretreatment-printing (UV ink) glass varnish Uv curing. A dedicated tube printer can basically complete the above process.

1 Manufacturing process of Pharmaceutical Tube-dust removal:

A common problem with plastic materials is that they are relatively easy to generate static electricity. In the process of producing the tube, the raw material is always in frictional contact with the metal mold, which generates static electricity on the surface of the tube, which makes the surface of the tube easy to absorb dust. Therefore, it is necessary to remove dust during the printing process.

2. Manufacturing process of Pharmaceutical Tube-surface pretreatment:

Since polyethylene raw materials are non-polar materials, surface pretreatment is required before printing. There are two main treatment methods, one is corona treatment and the other is flame treatment. Both of these methods can achieve the purpose of making the ink and varnish adhere firmly.

3. Manufacturing process of Pharmaceutical Tube-printing:

At present, there are two commonly used printing methods for plastic tubes. -One kind is offset printing. Ink passes through-the set of ink rollers are transferred to the printing plate, and the printing plate transfers the ink on the printed pattern to the blanket. Then, the blanket transfers the entire printed pattern to the substrate at a time.

Offset printing plates are usually made of light-curing resin plate materials, which are made through the main exposure, development, cleaning, drying and post-exposure processes. The production time of the printing plate is about 30-40 minutes, and the printer's durability can reach 00,00).

At present, the speed of offset printing can reach 2000 per hour, and the operation process has become easier and simpler. The increase in the production speed of offset printing and the reduction in cost have made offset printing widely used in tubular printing.

Another method of tube printing is traditional screen printing.

In recent years, the printing accuracy and printing speed of screen printers have been greatly improved.

The production speed can reach 5000 hours, and the overprint accuracy can reach 0.2mm. Because the ink layer of screen printing is thicker, it is mainly used for color. Print the part of the tube or uncovered varnish product.

4. Manufacturing process of Pharmaceutical Tube-coating:

A set of coating device is installed on the offset printing machine, which is composed of two steel rollers and a rubber roller. The adhesion fastness of varnish is also directly related to the tension of the plastic surface after pretreatment. Varnishes are usually UV-curable varnishes, and there are many types, such as gloss oil and matte oil. In addition, there are thermosetting varnishes and three-in-one varnishes for glazing after offset printing.

5. Manufacturing process of Pharmaceutical Tube-varnish curing:

For uv curing varnish, the degree of curing of the varnish has a great relationship with the wavelength and ultraviolet intensity emitted by the uv lamp. For products that have undergone subsequent processing (such as hot stamping), the degree of curing of the varnish will have a significant impact on the quality of the subsequent addition of T.

Manufacturing process of Pharmaceutical Tube-hot embossing:

A layer of hot embossed paper is embossed on it, so the silk screen will not feel uneven. The hot stamping process is mainly divided into several parts: the preparation before hot stamping, the installation of hot stamping plates, the determination of hot stamping process parameters, hot stamping testing and formal hot stamping.

Lisson Packaging has more than 20 years of history in the field of pharmaceutical tube production. The factory automated pharmaceutical tube drawing, printing, filling, and packaging are one-line automatic production processes. At the same time, these tubes can be used in the field of cosmetics and hair care. Fields, food fields, etc. Lisson's products mainly produce cosmetic tubes and Pharmaceutical Tubes. Food squeeze tube, aluminum-plastic sheet tube, hair care tube, hand cream tube, and support tube. According to the material, they can be divided into: environmental protection packaging series: pure aluminum tube, PCR plastic tube, sugarcane biological tube, kraft paper Tube, ordinary tube: LDPE tube, MDPE tube, HDPE tube, sheet tube. According to the number of layers, it can be divided into: 2-layer tube, 5-layer tube, etc.