Medicinal aluminum collapsible tube process

1. What is the inner spraying process of medical aluminum collapsible tube

Second, why do medical aluminum collapsible tubes need to be sprayed internally?

Third, what are the characteristics of the spraying process in the medicinal aluminum collapsible tube

Four, summary

1. What is the inner spraying process of medical aluminum collapsible tube

Internal spraying is the process of spraying on the inner wall of the tube with the help of pressure with a spray gun, referred to as 'internal spraying'.

Spraying refers to a coating method in which a spray gun or a disc atomizer is used to disperse into uniform and fine droplets by means of pressure or centrifugal force and apply to the surface of the object to be coated.

The inner spraying process of the medicinal aluminum collapsible tube is an inner spraying method of the medicinal packaging aluminum collapsible tube, which includes the process of coating the thin top of the medicinal packaging aluminum collapsible tube and the inner side of the tube body.

Extend a thin top spray gun from the tail opening of the aluminum collapsible tube to spray the inside of the thin top, and extend two tube body spray guns to spray the shoulder and body of the aluminum collapsible tube. The spray direction of the paint is the center of the aluminum collapsible tube for medical packaging The axis is 15-25 degrees.


Second, why do medical aluminum collapsible tubes need to be sprayed internally?

1. The internal spraying of the medicinal aluminum tube has anti-corrosion effect, and the internal spraying resin can effectively isolate acid, alkali, water vapor and solvents, and avoid chemical reactions caused by contact between the paste and the aluminum material;

2. Anti-oxidation effect of the spraying process in the medicinal aluminum tube: epoxy phenolic resin can effectively isolate air, water vapor, humidity, ultraviolet rays, bacteria and other substances in the external environment, reducing the chance of contamination, deterioration and decay of the paste ；

3. Medicinal aluminum tube has anti-falling effect: the resin sprayed inside is not easy to interact with metal, so as to protect the inner wall of the aluminum tube from falling off;

4. The material sprayed in the medicinal aluminum tube must be safe and non-toxic. The resin will directly contact the paste itself and must be a non-toxic and safe substance. Now the industry generally uses resin products that meet the US FDA food hygiene standards as spray materials, so that consumers’ safety is more guaranteed.

5. Due to the strong activity of metal aluminum, it can chemically react with many ingredients in the medicine. Therefore, in order to avoid the impact of packaging materials on the quality of the medicine, the aluminum collapsible tube will be sprayed with a thin layer on the inner wall of the tube before being used for medicine packaging. Coating, the main components are epoxy resin and phenolic resin.


Third, what are the characteristics of the spraying process in the medicinal aluminum collapsible tube

1. Adjust according to the temperature and the specifications of the aluminum collapsible tube for pharmaceutical packaging, the pressure of the paint and the air flow through the thin-top spray gun and the barrel spray gun.

2. An internal spraying device, including a thin-top spray gun and two tube-body spray guns, and the medicinal aluminum collapsible tube is sprayed separately through the tube body spray gun and the thin-top spray gun

3. After spraying, the coating will not appear thread-like, no bubbles will appear on the shoulders, and there will be no variegation and salivation inside. The coating is uniform, which effectively isolates the aluminum collapsible tube from the medicine, and has the effect of anti-corrosion and isolation.

4. In order to ensure the insulation effect, the inner spray coating of the medical aluminum collapsible tube must be sprayed evenly without missing coating. The inner coating needs to be inspected to determine its integrity. In the 'aluminum medicinal ointment tube' standard, the testing device for this item is described.

Four, summary

1. Although internal spraying has a great effect on aluminum tube packaging, not all aluminum tube packaging requires internal spraying. Only when filled with corrosive substances or chemically unstable ointments, internal spraying is necessary for protection. The internal spraying of medicinal aluminum collapsible tubes protects the internal ointment.

2. The ointment contained in the medicinal aluminum collapsible tube is directly applied to the human body. The resin sprayed inside will directly contact the ointment itself. The resin sprayed inside must be safe and non-toxic. Now the industry generally uses resin products that meet the US FDA food hygiene standards as spray materials, so that consumers' safety is more guaranteed.

3. The main reason for the internal spraying of the medicinal aluminum collapsible tube is to ensure the insulation effect and protect the inner ointment. The spray coating of the medicinal aluminum collapsible tube must be evenly sprayed without missing coating. Need to check the integrity of the inner coating.