With the rapid development of science and technology and the changing consumption trends, the manufacturing industry is also keeping pace with the times. A national or industry standard that has been in use for seven or eight years should also undergo necessary improvements and modifications to retain the parts that adapt to development trends and add necessary content. Excessive requirements and technical indicators that increase unnecessary manufacturing costs and waste resources should also be included in the revisions. The top priority is to make national or industry standards more authoritative, representative, and suitable.
Condiments are seasonings used in catering and cooking and cannot be consumed in large quantities like rice and flour. Therefore, there are some special requirements for condiment packaging, including repeat sealing, light avoidance, stability, and so on. Soy sauce and vinegar can be regarded as representatives of liquid condiments, and there are many other types of condiments, such as cooking wine and seasoning oil.
During the planned economy era, glass bottles once dominated the packaging of soy sauce and vinegar. It can be said that glass containers are still one of the last strongholds of liquid condiments. Glass bottles do have their advantages, including transparency, good barrier properties, low price, and easy reuse.
In the early days, glass bottles were the only choice. In recent years, the monopoly of glass bottles has been broken, and plastic bags, PET bottles, and concave barrels have entered the liquid condiment market one after another.
PET bottles have a similar capacity as glass bottles, but they are lighter and have better gloss. They also have bottle caps that can be reused. PE barrels generally have a larger capacity and are suitable for occasions where consumption is relatively fast. They also have good repeat sealing performance. Plastic bags provide better economy.
However, glass bottle packaging still dominates, and to solve the fatal weakness of glass bottle packaging, which is the non-resealable bottle cap, many glass bottles have been improved by using plastic bottle caps for ease of use.
Small-volume liquid condiments such as mustard oil, chili oil, and some high-end raw soy sauces are still mainly packaged in glass bottle, but they all use plastic bottle caps. There is no ideal substitute packaging for this market yet.
Plastic bottles have always relied on label technology to further improve their packaging appearance. In contrast, glass bottles have various options for post-decoration technology, including baking, spraying, frosting, and other effects. This enables glass bottles to often produce various types of packaging effects.
These processes can change the color of glass bottles and enable them to adapt to various packaging needs for different positioning. Therefore, now in the high-end packaging market, more and more manufacturers use glass bottles for packaging due to their personalized needs and then improve them through various post-decoration technologies to achieve unique packaging effects that are difficult to achieve on plastic bottles.
According to relevant statistics, glass bottles are showing a rapid growth trend in the packaging market worldwide.
