PP strapping, also known as polypropylene, PP strapping is a lighter type of common plastic, PP strapping the main material is polypropylene drawing grade resin, PP strapping because of its good plasticity, strong breaking tension, bending resistance, With the advantages of light weight and ease of use, the strapping straps that have been processed into PP strapping belts have played a major role in various fields. PP stands for polypropylene, there are many polypropylene grades, and the strap production (best effect) uses the polypropylene material grade T30S.
PP strap appearance: translucent to opaque, transparent texture film. Flammability: Flammable in flames. Slowly extinguish or continue burning after leaving the flame. When the PP strap is burned, the upper end of the flame is yellow and the lower end is blue; melting and dripping phenomenon occurs. Can smell the smell of paraffin.
Established in 1988, Hangzhou Yongning Plastic Products Co., Ltd. is located in Pingyao Industrial Park, Yuhang District, Hangzhou. It is one of the earliest integrated packaging companies engaged in R&D, design, production and marketing of plastic strapping and PP strapping. 25 years of unremitting efforts, has now developed into China's largest manufacturer of PP plastic strapping, PET plastic strip.
Since its establishment, the company has been committed to the high-end research and development of the packaging industry for 25 years. It has always adhered to the business philosophy of “high-quality industries and specialized servicesâ€, cooperated with many international excellent packaging companies, introduced advanced equipment and technologies, and specialized in production and sales. A variety of specifications of PP plastic strapping, PET plastic steel belt, automatic, semi-automatic, hand packer and spare parts.
25 years of experience in the production of packaging materials, we have created a brand of "Yongning Packaging"! We produce high quality packaging materials that meet environmental requirements. "Quality first, customer first", we uphold this one business purpose, continuous innovation, rapid development.
PP strap production process:
The first is that the extruder temperature control is generally between 250°C and 280°C. The next step is cooling. After the material is brought out of the head, the temperature is very high, and it is necessary to immediately enter the water to cool, because the isotactic polypropylene easily generates a twin structure in the case of quenching, and the twin crystal structure is loose. Easy to stretch orientation, to obtain high quality products. This is followed by stretching. The purpose of stretching is to increase the longitudinal strength of the strap and reduce the elongation. Stretching must be carried out in boiling water, and one stretch is generally used. The last is embossing. After the stretched PP strapping belt is pressed by two patterned press rollers, it is pressed onto the pattern. The PP strapping function is to increase the friction during use, not to slip, and to look beautiful from the outside.
The PP strapping belt is made of polypropylene, which has been heated, melted, stretched, and cooled to produce a net-like packaging material. The basic parameters that influence the quality of the strapping tape are the tension, length, bending, and elongation. In the case where the pulling force and other parameters are the same, the PP strapping tape has a lower length and a lower cost. Introduce four of the world's most advanced strap production lines, using processing technology to produce high-strength, high-quality products, environment-friendly new material packaging belt of 3,000 meters, the cost per unit of packaged belt price is far lower than the domestic return tape and similar imports With the unit price of the belt, the cost is reduced by 120%.
For more packaging information, please pay attention to China's packing belt trading network, there is a demand for packaging can contact QQ, electricity
Top and Base Jewelry Box is the kind of jewelry box consists of two parts: the cap and the base box. This kind of jewelry box is classic style, customers can easily open it and show the jewelry inside completely.
Brand Name: Jinao
Place of Origin: Guangdong, China(mainland)
Surface Material: Customized
Inner Material: Velvet/ foamed plastic
Color: Customized
Size: Multi-size + Customized
Feature: Classic/ Elegant
Logo Printing: Customized
Usage: Jewelry Box/ Gift BoxTop And Base Jewelry Box,Brown Bowknot Box,Top And Base Jewelry Box Cardboard,Top And Base Jewelry Box With Bowknot
DongGuan Jinao Packaging Products Co., Ltd , https://www.jinaojewelrybox.com