In the process of today's world economic changes, in the plastic bottle industry, the structure of the domestic industry is also in a state of continuous upgrading, and in the current process of industrial upgrading, many value-added industries will suffer It is also an unprecedented challenge to various operational difficulties and will face various difficulties. In today's society, hollow blow molding manufacturers gradually occupy a dominant position in the market.

The development of its plastic bottles faces a variety of problems, we can give you a careful analysis, for plastic bottles is a labor-intensive industry, in the current labor costs are rising, for plastic bottles In terms of enterprises, the labor cost is under huge pressure, and the price of raw materials is constantly rising, and it will also be subject to the continuous rise of various costs in the market. The rise in raw materials is very obvious, and It will also bring another layer of pressure to the enterprise.

With the European debt crisis and the weakening of the world economy, the foreign trade orders of plastic bottles are gradually declining, and many foreign trade enterprises are constantly turning to the domestic market, which brings the already fierce competition to the plastic bottle market. There has been a lot of pressure, and the price war has become more and more severe, and the profits of enterprises have become lower and lower.

Some of these plastic bottle manufacturers, in the current pressure situation of Suzhou blow molding processing, should take the road of industrial upgrading, and also need to take the road of innovation in the field of plastic packaging, which will continue to improve plastic bottles. The added value of plastic bottles is constantly improving in all aspects of the production, design and sales of plastic bottles.

There are two main manufacturing methods for plastic packaging bottles, extrusion blow molding and injection blow molding. The main injection molding process of plastic packaging bottles is that in the process of injection molding, the main molds used for molding plastic bottles include female molds and male molds. Use an injection molding machine to inject plastic melt into the cavity of the mold under high pressure. When opening the mold cavity, be sure to remove the male mold from the female mold and eject the bottle body. The following mainly introduces the characteristics of plastic packaging bottle injection blow molding.

1. The melt of the plastic packaging bottle is injected into the parison mold, and the corresponding orientation effect is experienced around the cavity. In addition, the ambient temperature of parison blow molding is lower than that of extrusion blow molding, and the orientation effect generated during the blow molding process can be retained a lot. This phenomenon can improve the overall strength of plastic packaging bottles and other related factors. performance.

2. The size of the plastic packaging bottle is accurate and high-precision, and it is relatively easy to ensure that the thickness of the plastic bottle wall is uniform and the specifications are the same according to the manufacturing requirements.

3. The surface of the plastic packaging bottle will not form a joint seam, and it does not need to be trimmed after molding. Under normal circumstances, there will be no leftover material, and the leftover material produced by extrusion blow molding is generally 5-30%. The gloss of plastic packaging bottles is relatively high, and the transparency of the plastic packaging bottles produced by using transparent polymers is higher.

4. A sliding bottom module can be designed on the blow mold of the plastic packaging bottle, so the flexibility of the shape design of the bottom surface of the plastic packaging is relatively large. It is more suitable for the manufacture of molded printed plastic bottles and wide-mouth plastic bottles.

5. Under normal circumstances, most of the plastic packaging bottles using injection blow molding are relatively small plastic bottles. For products with very complex molding shapes, the speed of energy consumption will increase significantly.