Yellow wine is a national specialty of China and plays an important role in the world's three major brewing wines. At present, the packaging of rice wine is generally made of glass bottles or porcelain bottles, and the closure is made of screw caps and articles from the Chinese wine cork. In order to maintain the style of rice wine and the Chinese cultural elements in the packaging, the middle and high-grade products are mostly selected from porcelain bottles. Due to the complicated molding process of the porcelain bottle, the precision is not well controlled, and the bottle mouth error is large. When using a cork seal, frequent leakage, breakage, and chipping occur, especially when the yellow wine leaks, the cork seal is very susceptible to mildew.
In order to effectively solve the above problems, Liaocheng Yanke New Packaging Materials Co., Ltd. cooperated with Hunan Shengjingshanhe Biotechnology Co., Ltd. to seal the products of the six varieties of the holy, the royal and the royal series of the “Guyueloutaiâ€. A comprehensive improvement has been made. Practice has proved that the application of elastomeric sparkling wine bottle stopper in rice wine filling is promising.
The elastomer foam bottle stopper is formed by high-performance thermoplastic elastomer (referred to as TPE/TPR for short) by co-extrusion foaming. The product has good uniformity, excellent sealing performance, high and low temperature stability, no liquid leakage, no TCA (trichloroanisole), no support for bacterial growth, no odor.
The alcohol content of rice wine is generally 14%-20%, which is a low-grade brewing wine. In the production and processing of rice wine, the bacteria in the air, containers and corks tend to deteriorate the yellow wine, so the filling of the yellow wine is subject to sterilization. There are many methods for sterilization, such as high temperature sterilization, ultraviolet sterilization, ozone sterilization, membrane filtration sterilization, etc. Among them, high temperature sterilization method has low cost, simple operation and good sterilization effect. Therefore, domestic yellow wine Enterprises generally use the high-temperature source of China Wine News Network sterilization.
According to the above situation, Liaocheng Yanke New Packaging Materials Co., Ltd. has improved from three aspects:
The first is the uniform bottle size. In coordination with Hunan Shengjingshanhe Biotechnology Co., Ltd., the three types of bottles, including the Holy Scriptures, the Austrian Code and the Fortune, are unified into one specification. The porcelain bottle manufacturer is required to improve the processing precision as much as possible, and the error in the bottle mouth is controlled within the range of ±0.5 mm.
The second is to adjust the bottle stopper formula and hardness, to adapt to high temperature sterilization. The formulation and softness of the elastomeric sparkling wine stopper can be adjusted over a wide range. Considering that the product should be cooked at high temperature for 30 minutes after the product is filled to kill bacteria, Liaocheng Yanke New Packaging Materials Co., Ltd. has repeatedly tested a formula suitable for high temperature sterilization. According to the size of the bottle mouth, during the first time of product molding, the softness of the cork is adjusted moderately to make it have the best insertion and removal strength.
The third is the rebound of the cork that may occur during high temperature sterilization. The V-type exhaust groove is reserved during the design of the cork, and it is recommended to use the “secondary sealing method†to seal. That is, after the rice wine is filled, first insert the stopper into the bottle mouth. When the temperature is sterilized, the steam formed by the rice wine will be discharged along the V-shaped venting groove, which not only solves the problem of the rebound of the stopper, but also effectively sterilizes the bottle mouth and the stopper. When the temperature reaches 50 ° C, the stopper is completely inserted into the bottle mouth.
After more than half a year of hard work, we completed a small test of 200 products in the laboratory, a pilot test of 10,000 products in the production workshop, and even a total of 6 varieties of products of the "Guyueloutai" Holy Scripture, the Austrian Code and the Fortune. use.
Since the launch of the self-elastic foam bottle stopper with the “Guyueloutaiâ€, consumers generally reflect that it is more convenient to open the bottle, no leakage, no breakage, no chipping, no mold, environmentally friendly and hygienic, completely replaceable. Traditional cork.