The principle of production of PP spunbonded nonwovens

In recent years, China's non-woven fabric processing industry has developed rapidly. The use of spunbonded nonwoven fabrics has become more and more widespread, and its demand has also shown a rapid growth trend .

1. General parameters:

Production: 1500 to 3000 t / a
Power consumption: 800 kw/t
Product ration: 10～230 g/m2
C V value: ≤ 5%
Strong aspect ratio:?? 151 ~ 11
The situation of fabric defects: The condition of the fabric is good, and there are basically no threads, broken filaments, etc.

2. Equipment production process:

(1) The automatic suction device sucks the PP slice from the lower bin into the upper bin.
(2) The PP raw material enters the main screw extruder together with the masterbatch. The section of the electric heating device outside the main screw heats and fuses the chips.
(3) The melt is filtered by a filter and metered out by a metering pump.
(4) The melt is ejected from the spinneret.
(5) Cycling cools the air to draw the tow and send the tow to the web curtain.
(6) Consolidate the laid fiber web.

3. Some parts introduction

(1) Low silo: 3 - 4 m3 ( capacity ) , made of stainless steel.
(2) Suction tube: inner diameter 40 mm , inner wall with metal support frame.
(3) high silo:. 0 6 m3 (capacity), stainless steel.
(4) Automatic suction device: 220 to 400 kg/hr
(5) Addition of masterbatch: ≤ 10%
(6) Main screw:
Screw form: single screw form, automatic adjustment of speed.
Heating form: Five temperature zones, electric heating package.
(7) Feed back screw:
Screw form: single screw form.
Heating form: Five temperature zones, electric heating package.
(8) Metering pump: Transmission: Frequency control.
Working ability: 150～250 cc/r
(9) Spinnerets:
Aperture: φ 0 . 42 mm
Hole density: 3910 holes/meter
(10) Cycling cooling wind drafting system:
Stretch fineness up to: 3 dtex
The cooling temperature is controllable, the air volume is controllable, and the regulating valve controls the evenness of the web.
(11) Mill:
Heating form: heat conduction oil heating.
Surface treatment: nitriding treatment.
Flower stick rolling pattern: a word pattern, cross pattern, dot pattern.

Compact Mirror

We are professional customized metal fashionable small cosmetic mirror,pocket mirror, compact Mirror, tin pocket mirror, makeup mirror. Usually it is use for promotional gift and advertising gift. It is to carry conveniently for people. Usually we make it by zinc alloy material, in order to make is beautiful, we can plating color on the surface, such as gold, silver, nickel, antique silver, copper, brass and so on.