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How to make PP strapping flat

How to make PP strapping flat

  • Categories:Industry News
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  • Time of issue:2022-01-11 16:00
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(Summary description)PP strapping is also called polypropylene packing belt. The main raw material is polypropylene wire drawing grade resin, which is colorless and transparent solid particles, and is obtained by extrusion and uniaxial stretching. It has the characteristics of good plasticity, bending resistance, strong breaking tension, light material and bright color, and is widely used in packaging in many industries.

How to make PP strapping flat

(Summary description)PP strapping is also called polypropylene packing belt. The main raw material is polypropylene wire drawing grade resin, which is colorless and transparent solid particles, and is obtained by extrusion and uniaxial stretching. It has the characteristics of good plasticity, bending resistance, strong breaking tension, light material and bright color, and is widely used in packaging in many industries.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2022-01-11 16:00
  • Views:
Information

PP strapping is also called polypropylene packing belt. The main raw material is polypropylene wire drawing grade resin, which is colorless and transparent solid particles, and is obtained by extrusion and uniaxial stretching. It has the characteristics of good plasticity, bending resistance, strong breaking tension, light material and bright color, and is widely used in packaging in many industries.

PP strapping

The strapping may be uneven during the use of the machine. What method should we use to make the packing belt smooth?

The quality of raw materials is relatively important in production, and the speed of the speed regulator and the machine should be consistent. This can ensure the balance of the weft, and at the same time, it is necessary to improve the number of teeth of the motor gear and the force distance motor gear, so that the components can be balanced against each other to achieve a balance. And the most important point is that the most important time is to improve the straightness of the jumper spring of the circular loom, increase the elasticity, the pressure in the direction of the cam and the sand ratio becomes stable, and there will be no kink phenomenon, so that the appearance of the PP strapping will be much smoother.

The above is about how the PP strapping becomes flat when used with the packing machine. In the production process of PP strapping, the first is the temperature control of the extruder, which is generally between 250 °C and 280 °C. The next step is cooling. After the material is discharged from the head, the temperature is very high, and it should be cooled in water immediately, because the isotactic polypropylene is easy to form a crystalline structure in the case of rapid cooling, and the molecular structure of the crystalline structure is relatively loose. It is easy to stretch and orientate and obtain high-quality products. Then there is stretching. The purpose of stretching is to improve the longitudinal strength of the strapping and reduce the elongation. Stretching must be carried out in boiling water, and one stretch is generally used. The last is embossing. The stretched packing belt is pressed with patterns after passing through two patterned pressing rollers. Its function is to increase friction during use, without slipping, and it looks beautiful in appearance.

Mingyi Packaging Materials Co., Ltd. is a packaging material supplier integrating R&D, production and sales. Focus on production: PP strapping, automatic strapping, semi-automatic strapping, PET strapping, stretch wrapping film, paper corner protector. If you have demand for our products, welcome to contact us or leave a message online.

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Address: In Luojia Industrial Development Zone, Danzao Town, Nanhai District, Foshan City, Guangdong Province, China

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