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Dry Jet Wet Spinning Machine DW7091A

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DW7091A Dry Jet Wet Spinning Machine is suitable for preparation of various chemical fiber materials including long and short fibers and BCF filaments. It is widely used in the production of polyacrylonitrile fiber, aromatic polyamide fiber, polybenzimidazole fiber, etc.

 

Dry Jet Wet Spinning Machine DW7091A  

DW7091A Dry Jet Wet Spinning Machine is specially designed for researching new material in the field of textile, macromolecule and other material by a combination of dry and wet methods.

See more details about wet spinning process: Wet Spinning

Here are the features of the spinning machine:

  • The spinning machine mainly consists of raw material tank (with heating, stirring), metering pump (with heating), filter, spinneret cap, coagulation bath (with heating), water bath (with heating), drafting roller, heating box (drying/setting) and winding roller;
  • Touch screen control and display interface;
  • Real-time acquisition and control the temperature of the raw material tank, metering pump, coagulation bath, water bath and heating box;
  • Real-time acquisition and display the raw material tank pressure;
  • Real-time display the flow of metering pump;
  • Roller and metering pump frequency control.

Application

Application of Dry Jet Wet Spinning Machine 

A variant of wet spinning is dry jet wet spinning, which is called dry-wet spinning for short. It is a chemical fiber spinning method which combines the characteristics of dry spinning and wet spinning. This is a new spinning method developed in the 1960s.

Dry Jet Wet Spinning machine has been used in the production of polyacrylonitrile fiber, aromatic polyamide fiber, polybenzimidazole fiber, etc.

The spinning speed of dry jet wet spinning can reach 600 ~ 1200 m/min, which is much higher than that of wet spinning. And the spinneret with larger aperture (φ=0.15 ~ 0.3 mm) can be used. However, the concentration and viscosity of the spinning solution can be as high as that of dry spinning. What’s more, the structure formation process of the fiber can be controlled effectively by dry jet wet spinning. In dry spinning, the solidification speed of liquid flow is often very slow due to the limit of solvent evaporation speed. In dry-wet spinning, the flow of liquid (fiber) being drawn enters the coagulating bath. And the solidification rate and fiber structure can be changed over a wide range by adjusting the composition and temperature of the coagulating bath.

 

Standards

Dry Jet Wet Spinning Machine Standards

Key specification

Key specification of Dry Jet Wet Spinning Machine 

Control mode PLC & touch screen
Raw material tank Volume: 1L
With stirring function
With nitrogen interface
Having a feeding opening with a glass window
Temperature range: 0~80℃
Metering pump Frequency control, flow: 0.6cc/rev
Temperature range: 0~80℃
Filter Material: stainless steel
Spinneret cap Material: tantalum, external diameter: φ16mm
Coagulation bath Material: stainless steel
Dimensions: 1000*160*160 mm
Temperature range: 0~80℃
With cover
Water bath Material: stainless steel
Dimensions: 1000*160*160 mm
Temperature range: 0~80℃
Drafting roller Size: φ50×80mm, linear speed: 0~20m/min, adjustable
Heating box Temperature range: 0~200℃
Winding roller Main body material: stainless steel
Linear speed: 10~40m/min, adjustable
Tube material: paper tube
Power supply AC 220V, 50Hz or 380V, 50Hz, three-phase

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