The manufacturer printed and customized 2kg glass water self-supporting nozzle bag color printing logo

The so-called glass water is also called wiper, which is a name for car windshield cleaning fluid. Glass water is mainly composed of water, alcohol, ethylene glycol, corrosion inhibitor and various surfactants. It has the functions of antifreeze, wetting, infiltration, solubilization and decomposition of dirt. According to the different antifreeze temperatures, glass water is generally divided into summer type, four seasons universal type and antifreeze type. According to the different concentrations, glass water is concentrated and non concentrated. No matter which type of glass water, the production process is similar, but the difference is the production formula.

Glass water self-supporting suction nozzle bag is composed of suction nozzle and self-supporting bag. The self-supporting bag is composed of packaging materials, and the suction nozzle is a bottle mouth made of plastic.

Generally, it is used to pack liquids, such as soymilk, soy sauce, vinegar, fruit juice, beverages, laundry detergent, milk, etc. As the suction nozzle of the suction nozzle bag has various forms, there are long nozzles for sucking jelly, fruit juice and beverages, as well as suction nozzles for washing supplies. With the continuous improvement, development and application of nozzle bags, detergent and softener in Japan and South Korea are mostly packaged with nozzle bags, which are loved by foreign friends. This is the rhythm of the gradual transfer of plastic packaging bags to self-supporting suction nozzle bags. Winter in the north is cold, and Baijiu is much loved by northern men. Drink less to strengthen the body and improve body heat. If people use the soft package with a long mouth to make the package, it can be convenient for people working in the field to sprinkle with body temperature or warm with hot water, which is convenient for drinking. Nowadays, the advertising industry is developing rapidly. If we make full use of the advantages of convenient printing and good printing quality of flexible packaging, we can print advertisements on self-supporting suction bags, which are easy to carry, widely spread, and have the benefit of killing two birds with one stone.

So how is the self-supporting nozzle bag made?

The suction nozzle bag is composed of suction nozzle and self-supporting bag, and each link of which has high requirements for the process. If you don't master it well, unqualified products will appear, and problems such as bag inflation, bag breakage and leakage will appear in the process of use. In order to avoid this situation, we must pay attention to the links such as punching, placing the bottom of the bag and heat sealing at the bottom in the production of self-supporting bags, especially the joint part of the fourth and second layers of self-supporting bags is particularly prone to bag breakage. The horizontal sealing knife is not enough. We should install heat sealing knives, and some of them should also strengthen heat sealing. In addition, self-supporting bags with mouths are required to have good opening performance. When making bags, static electricity on the surface should be removed to avoid adsorption between bags, which is not conducive to taking bags by mouth sealing machine.

At present, there are two methods for self-supporting bag suction nozzle in China: manual suction nozzle and thermal sealing suction nozzle. The temperature is transmitted to the mouth through heat conduction, so that the mouth melts and is welded with the PE sealing layer of the bag.

Requirements for bag making process of suction nozzle bag

1. Heat sealing temperature

The factors to be considered when setting the heat sealing temperature are: first, the characteristics of the heat sealing material; Second, film thickness; The third is the number of hot sealing and pressing and the size of the hot sealing area. In general, when there are many times of pressing at the same part, the heat sealing temperature can be set lower appropriately.

2. Heat sealing pressure

The manufacturer of nozzle bag must apply appropriate pressure during heat sealing to promote the adhesion of heat cover materials. However, if the pressure is too high, the molten material will be extruded, which will not only affect the flatness of the bag, fault analysis and troubleshooting, but also affect the heat sealing effect of the bag and reduce the heat sealing strength.

3. Heat sealing time

In addition to the heat sealing temperature and pressure, the heat sealing time is also related to the performance of heat sealing materials, heating methods and other factors. The specific operation shall be adjusted during the actual commissioning according to different equipment and materials.

4. Heating mode

The heating methods of the heat sealing knife during bag making heat sealing can be divided into two categories: unilateral heating and bilateral heating. Obviously, the heating method on both sides is more efficient and practical than that on one side.

There are many problems in the actual production of packaging bags, but there are mainly two prominent problems: one is liquid leakage or air leakage when holding goods; Second, the bag shape is uneven and the bottom seal is asymmetric in the process of bag making. Therefore, how to choose materials and adopt better process operation methods plays a decisive role in improving the overall quality of upright bags.

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