Contents
1 Introduction of Rope Drying Machine2 Type of Jet Drying Machine2.1 HTHP Overflow Jet Drying Machine2.2 HTHP Jet Drying Machine3 Improvement and Development Trend of Jet Dyeing Machine3 .1 Overcoming Blisters3.2 Preventing Tangles3.3 Reducing Wrinkles3.4 Avoiding Pressure Marks4 High Temperature Jet Dyeing Machine QR6304.1 Application4.2 Function4.3 Specification
Introduction of Rope Drying Machine
Jet dyeing machine belongs to a rope dyeing machine. If you want to understand jet dyeing machine, you need to understand rope dyeing machine first.
Rope dyeing machine is mainly used for rope drying wool fabric, silk fabric, etc. Chemical fibers of wool-like cloth, silk-like cloth and cotton, cotton blended fabric not suitable to withstand tension and pressure. It can also be used for some silk fabrics, cotton and their blendseweb can be used, e.g. such as scouring, bleaching and washing , washing and other processing. This type of fabric is easy to stretch, pinch and loosen, so will not pad or pucker. To dye. And the dyeing equipment should match the fabric to withstand low tension. Basic requirements and fabric and low friction are often called disseminated (exhaustion) for various reasons To date, this type of equipment has come in various forms and varieties, including normal temperature and pressure rope dyeing machine, normal temperature and pressure overflow dyeing machine, overflow dyeing machine with high temperature and high pressure, a jet dyeing machine and a new airflow wire dyeing machine.
In order to adapt to the high temperature and high pressure rope dip dyeing process of some synthetic fabrics, the atmospheric pressure rope dip dyeing machine is placed horizontally with compressive strength ant pot body first, and the high temperature and high pressure drying is carried out in the sealed state. However, the fabric is easy to get tangled in operation, and the treatment of lowering the pressure and opening the cover is very cumbersome, and the drying effect is not good enough. As the yield and variety of synthetic fibers and their blends, woven knits and woven fabrics increased, the mid-1960s spurred the rapid development of high temperature and high pressure loose rope dyeing machines. Because this type of drying machine forces the drying liquid to flow in the machine by a circulation pump and propels the movement of the fabric, hence it is called liquidfluid flow drying machine. There are many types of such drying machines, which are still under continuous improvement and development; The development of the general situation is the use of dye overflow effect, spray effect, and is divided into overflow, spray type, spray plus overflow, etc. From the bathroom wheelThe trend towards size is towards the development of smaller bathroom proportions. Because many dyeing machines have their own characteristics for fabric types and dyeing processes, they are currently being improved and developed together.
HTHP Jet Dyeing Machine
Since GastonCounty exhibited the first high-speed, high-pressure jet dyeing machine in 1967, various types of jet dyeing, rapid in recent years. The idea of using jets and liquid flows to drive the movement of the fabric should help the dyeing liquid penetrate the rope-like fabric, accelerate the dyeing effectof the dye on the fiber, reduces the bath ratio and achieves a better dyeing effect. There are many types of high temperature and high pressure jet dyeing machine, which can be divided into tank type and tube type.
1. HTHP Tank Jet Dyeing Machine
Tank structure is pressure conductive, compact structure, small staying area, tank dye is half full, bath iIt is relatively small (7~10:1). The rope-like fabric, sprayed by the nozzle and pushed by the liquid flow, is compactly stacked in the J-shaped box in the tank, which enables the implementation of small bath ratio coloring.
At the same time, due to the large When shaking the fabric, the fabric is not easy to get tangled. In jet dyeing, the fabric runs quickly and it is not easy to create permanent creases. However, foam is generated during dyeing and an antifoaming agent is often required. In theGenerally, there are 1~6 dye tubes in the tank, which can be purchased as needed. The maximum operating temperature of the machine is 140℃.
To prevent the adverse effect of the dye liquor on some types of fabric creates a spray force, a spray and overflow stream. The ME215-2 high temperature and high pressure spray drying machine shown in the picture is one of the dyeing machines. It has two dyeing tubes, the maximum fabric capacity is 120kg/tube, the bath ratio is 5~7∶1, and the working temperature is 135℃. The feature of this machine is that by adjusting the nozzle, it can be used for overflow, spray, overflow spray in combination with three different states of dyeing; The pulley is powered by a direct currentmotor driven, stepless speed control, speed control as needed; The dyeing process is controlled by a program. Therefore, it can be applied to high temperature and high pressure dyeing of synthetic fibers, blended and woven knitted fabrics Ed fabrics from 50 to 300 g/m2, with strong adaptability, short drying cycle and reduced consumption of water, electricity, steam and drying materials.
2. HTHP Tube Overflow and Jet Drying Machine
The shape of the dyeing machine, the tube is tubular, and the body consists of a fabric storage tube and a fabric guide tube. The stock guide tube can be above or below the stock storage tube. The dyeing liquor in the cloth storage tube can be fully filled or semi-filled, which can be adjusted according to the needs of the dyeing process. The tension of the rope fabric is very low during the dyeing process, as it is laid flat and relaxedis in the storage tube. Because the nozzle is usually not easy to foam when immersed in the dyeing solution, so no defoaming agent can be added. This type of dyeing machine covers a slightly larger area than the tank type, and the general bath ratio is 5-10∶1. Tube drying machine is usually overflow and spray dyeing, but also overflow dyeing. Light and thin, soft and delicate fabrics are not easy to scratch, and it is also not easy to print permanent creases, so it is especially suitable for dyeing light and thin fabrics.
3. U-Shaped HTHP Jet Dyeing Machine
As shown in the picture, the body is the A vertically mounted U-shaped stainless steel plate, which is welded by the machine, is filled with dye liquid, which is heated by a circulating pump through the heater and sprayed into the machine through a nozzle. At the same time, the dyeing liquid returns to the circulation pump along the flame Turn on the liquid device through the filter and form the dyeing liquid circulation in the machine. The loose ring cloth accumulates in the body through the cloth guide tube under the spraying force of the spray nozzle, and continuously circulates under the thrust of the dyeing liquid flow. The rate of material dispensing can be controlled via the control valve and displayed via the speed meter.
The fabric capacity of the machine is 85-100 kg, the bath ratio is 9:1, the fabric lopening speed is about 2 m/s, the highest working temperature is 130 °C. The main circulation pump and the feed pump are centrifugal pumps with corrosion resistance. The machine is full of dyeing liquor, and rope fabric is always immersed in the dyeing liquor in a relaxed state, there is no foam, the appearance of the dyed product is plump, and the touch is good; organization is also easier and takes up less space.
4. Q72-2 HTHP jet dyeing machine
The device is horizontal oval tube (commonly known as wheel type) full high temperature and high pressure jet dyeing machine, which can be divided into single layer and double layer.
As can be seen from the above structure diagram of the machine in the picture, the loose ring-rod-shaped web in the stainless steel oval tube was blown by the liquid flow sprayed by the jet driven. The nozzle consists of a nozzle andd a spray cage, and in between there is an adjustable annular gap from 0 to 10 mm. The conical tubes form a nozzle. The nozzle caliber is divided into three types of 50, 60 and 70 mm. When choosing a nozzle and spray cage, it is advisable to pinch the fabric section that is 1/3 of the nozzle section.
The bath ratio of this machine is 9:1 and the consumption of water, steam and electricity is reduced. The maximum fabric capacity is 140 kg, the maximum working temperature is 140 °C, the fabric speed is 150-260 m/min, the liquid volume is 1400 l. Because the fabric is fully dyed by liquid flow in the lying tube drying liquidid, the fabric tension is small, and the dyeing effect is good.
Verimprovement and development trend of jet dyeing machineOvercoming bubbles
As mentioned earlier, such machines tend to have a small bath ratio, whereas the foam generated during dyeing They do not differ in the quality of the dye and tend to knot the fabric, one of the main disadvantages of semi-full-jet dyeing machines, which can be solved by adding an anti-foaming agent. In recent years, the nozzle of many semi-filled jet dyeing machines is fully submerged, which can effectively prevent air from entering the nozzle and generating foam. In addition, they are also equipped with a bypass pipe, which leads out the foam in the storage pipe, or the combination of overflow and spray nozzle liquid sealing device to reduce the foam has a certain positive effect.
Prevent tangles
During operation in the machine, the cable mesh can aCannot be dyed normally due to irregular stacking. Twisting, TangleIn order to prevent twisting and tangling of the fabric, the following measures have been taken in recent years: The tank jet dyeing machine has a fabric lift, so that the fabric has a chance to loosen before entering the Nozzle arrives .In the case of the jet dyeing machine with faster fabric running speed, the distance between the roller and the liquid level is also slightly increased. The nozzle section tends to be rectangular and has some spreading effect. It makes sense to design a rectangular section of the cloth guide tube behind the nozzle, which can eliminate the spiral twist of the cloth caused by the eddy flow of the dyeing liquor, reduce the hydraulic loss caused by the eddy flow of the dyeing liquor, and achieve uniform dyeing. Leading the fabric tube falls into the fabric storage tube, the pneumatic manipulation device is used to stack the fabric neatly and regularly.
Reduce wrinkles
In jet dyeing, it is easier to generate longitudinal and transverse wrinkles, which is related to the longer extrusion time of fabrics in the dyeing process. Therefore, it is advantageous to reduce wrinkles by taking measures to improve the running speed of the fabric for tank and tube dyeing machines, so that the relative extrusion position can be changed at intervals of about 1 to 2 minutes. Also in the cloth storage groove, using a horizontal cage or a shaft drum for slow rotation, the cloth is reduced by gravity extrusion. In addition, a cloth feeding device is similar to a conveyor track can also be used, or the porous cloth storage groove in the tube-type cloth storage tube can be moved up and down. It is worth noting that some stained fabric jams and creases are often associated with the self-primingThe circulation pump must be selected and designed accordingly.
Avoid pressure points
Fine, sensitive fabrics can often be easily scratched off during jet dyeing. In recent years, the measure of overflow and spraying has become common. It is mainly used to reduce the nozzle pressure and ensure that the fabric is not easily scratched. You can also use the runner, drum or cloth contact wall at the bottom of the bearing groove using PTFE plate or coating, or use stainless steel conveyor belt to avoid cloth abrasion has a certain effect.
QR630 High Temperature Jet Dyeing MachineApplication
QR630(A) series high temperature jet dyeing machine is suitable for testing fabric dyeing; the design goal of this machine is especially for small amounts of fabric.
FeatureCorrosion-resistant stainless steel inner body; highly efficient stainless steel centrifugal pump for an optimal staining cycle; Lifting roller driven by a frequency converter controlled motor; Service tank equipped with feed pump, valve, dye circulation system; Level monitoring equivalent IP with magnetic sensor; high performance heat exchanger; Fill water, drain water, heat up, cool down the main tank, all automatically; pneumatic valve for filling and emptying function; PLC control (QR630A); Fill dye, stir, heat, fill water，Emptying everything can be done automatically (QR630A);Specification
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