1. Concept brief
The so-called spraying process: in order to enhance the artistic appeal of the glass bottle, color is sprayed on the glass bottle according to relevant requirements. With the advancement of technology, the spraying process is more and more applied by liquor manufacturers, and the expression methods of spraying are also diversified.
2. Process flow
First of all, a brief overview of the glass bottle production process, mainly including:
① raw material preprocessing. Crushing the bulk raw materials (quartz sand, soda ash, limestone, feldspar, etc.), drying the wet raw materials, and removing iron from the iron-containing raw materials to ensure the quality of the glass.
②Preparation of ingredients.
③ Melting. The glass batch is heated at high temperature (1550-1600 degrees) in a pool kiln or pool furnace to form a uniform, bubble-free liquid glass that meets the molding requirements.
④Molding. Put the liquid glass into the mold to make glass products of the required shape, such as flat plates, various utensils, etc.
⑤ heat treatment. Through annealing, quenching and other processes, the stress, phase separation or crystallization inside the glass is eliminated or generated, and the structural state of the glass is changed.
The spraying production line for glass bottles generally consists of a spray booth, a hanging chain and an oven. Glass bottles and the front water treatment, glass bottles need special attention to the problem of sewage discharge. As for the quality of glass bottle spraying, it is related to water treatment, surface cleaning of the workpiece, electrical conductivity of the hook, the size of the air volume, the amount of powder spraying, and the level of the operator.
(1) Pre-processing section
The pre-treatment section of glass bottle spraying includes pre-stripping, main stripping, surface adjustment, etc. If it is in the north, the temperature of the main stripping part should not be too low, and it needs to be kept warm, otherwise the treatment effect will not be ideal;
(2) Preheating section
After the pretreatment, it will enter the preheating section, which generally takes 8 to 10 minutes. It is best for the glass bottle to have a certain amount of residual heat on the sprayed workpiece when it reaches the powder spraying room, so as to increase the adhesion of the powder;
(3) Glass bottle soot blowing purification section
If the process requirements of the workpiece to be sprayed are relatively high, this section is essential. Otherwise, if a lot of dust is adsorbed on the workpiece, the surface of the workpiece after processing will have a lot of particles, which will reduce the quality;
(4) Powder spraying section
The most critical part of this paragraph is the technical problem of the powder spraying master. If you want to create good quality, it is still very worthwhile to spend money on a skilled master;
(5) Drying section
What should be paid attention to in this section is the temperature and baking time. The powder is generally 180-200 degrees, depending on the material of the workpiece. Also, the drying furnace should not be too far away from the powder spraying room, generally 6 meters.
The packaging materials of wine, bottle caps, bottle rings, locks, etc. can be introduced to you. Because the content is too broad, I will not explain them here. Interested friends can visit some manufacturers in person. Let’s see how the whole process of the production of packaging materials is done.
Post time: Apr-21-2022