PP strapping polypropylene drawing grade resin, because of its good plasticity, strong cracking tensile strength, resistance to fatigue, small density, good tensile impact properties, PP strapping and other advantages, has now been widely used in various fields. Lace Mesh Embroidery Fabric
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The first of the PP strapping is that the extruder temperature control is generally in the range of 250°C to 280°C. The next step is cooling, after the material is brought out of the head, the temperature is very high, and it should be immediately cooled in water. Since the isotactic polypropylene simply generates a twin structure in the case of quenching, the twin crystal structure is loose.
PP straps are simply stretched to achieve high quality merchandise. This is followed by stretching. The intention is to increase the longitudinal strength of the strap and reduce the elongation. Stretching must be done in boiling water, and one stretch is generally used. The final result is embossing. After the stretched straps pass through two striped rollers, they are stamped with stripes. The effect is to add conflict and non-skid in the use. The PP straps look beautiful from the outside.
Established in 1988, Hangzhou Yongning Plastic Products Co., Ltd. is located in Pingyao Industrial Park, Yuhang District, Hangzhou City. It is one of the earliest comprehensive packaging companies engaged in the development, planning, production, and marketing of plastic strapping belts. 25 years of continuous efforts, has now become China's largest PP plastic strapping, PET plastic strip manufacturers.
Since its establishment, the company has been committed to high-end research and development of the packaging industry for 25 years. It has always adhered to the operating philosophy of "Excellent Industrialization and Specialization," and cooperated with many world-renowned packaging companies to introduce leading equipment and skills, and specialized 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 production experience of packaging materials, we have created a "Yongning packaging" this brand! We produce high-quality packaging materials that meet the needs of environmental protection. "Quality first, customer first", we follow this one operation theme, continuous innovation, rapid development.
PP packing belt production process: plastic grain melting --- pressure belt ---- molding ---- cooling --- winding --- packaging --- storage. 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 affecting the quality of the strapping tape are tensile force, length, tortuosity, and elongation. In the same situation as pulling force and other parameters, the longer the length, the lower the cost. PP packing belt introduces four of the world's leading packaging belt production lines, selects processing technology, and produces high-strength, high-quality, environment-friendly new material packaging belt of 3,000 meters. The cost per meter is far lower than the domestic return tape and similar imports. The unit price of the belt.
For more information, please pay attention to China's packing belt trading network
