APPARATUS AND METHOD FOR PRE-TREATING FABRIC IN VAT

Abstract

 This patent application provides a device and method to pretreat fabric inside the dyeing machine. When fabric is cycling in the dyeing machine, steam nozzle can be installed after fabric delivery channel, spraying high temperature steam to the fabric; releasing internal stress and improve cycling smoothness. This can effectively reduce repeated folding on fabric, reduce dyeing time and dehydrate fabric. Operators will not require pretreatment device to achieve the same result, saving energy, reducing carbon foot print and cost.

Description

Technical Field

[0001] This invention patent describes a device that pretreats fabric internally with steam and its method thereof which is applied in fabric dyeing machine in the textile industry.

Background of the Invention

[0002] A conventional cloth dyeing machine consists of spraying nozzle and storage trough with a fabric looping continuously inside the machine. When fabric passes through the dyeing nozzle, it enters the storage trough through the plaiting device. But different fabric consists of different weaving patterns and materials, therefore heavier fabric might be folded or twisted when passing through the spraying nozzle; if the fabric maintains this folded or twisted pattern for a few cycles, non-reversible folding marks will be created on the fabric. Some dyeing factories will use aerodynamic dyeing machines that are able to unfold or unwind the fabrics using high pressure air from the nozzle to avoid this problem. However, aerodynamic dyeing machines cost relatively more and have higher electricity consumption comparing with normal dyeing machines; therefore they are less appealing to some dyeing factories.

[0003] There are also other potential problems with aerodynamic machines. Although the implementation of air nozzle can reduce the uneven color distribution effect on fabrics, but this is less effective on heavier fabrics where it is more difficult to unfold fabrics with high pressure air. The current solution is to increase the cycling time and raise the power of the air and water pump to get a higher flow and pressure dyeing solution in the nozzle. This approach can open up the folds and increase the cycling speed but with the consequences of higher energy consumption and possibility in damaging fabric surfaces. Another solution is to heat up the fabrics before the dyeing process. This will soften the fabric, increase cycling speed and reduce uneven color distribution during the dyeing process. This method of heating up the fabric before the dyeing process requires extra labor to move the fabric to the pretreat machine, sacrificing labor, time, power and productivity. This invention patent aims to improve the above difficulties faced in the dyeing industry.

Disclosure of the invention

[0004] This invention patent aims to compensate on the current shortcoming of the technology, providing an internal pretreat device and methodology, treating fabrics directly inside dyeing machine with steam, altering its structural properties, aiding the dyeing process afterwards.

[0005] This invention patent application provides a fabric pretreat system apparatus. This system includes storage trough, roller and plaiter. The plaiter inlet is installed with fluid nozzle and steam nozzle is installed on the fabric pathway, spraying steam to fabric along the way.

[0006] Moreover, the described fabric spraying device is installed between storage trough and the roller.

[0007] Furthermore, the described steam spraying nozzle is installed between storage trough and the roller, attached to plaiter mount.

[0008] Moreover, the design consists of one or more steam spraying devices.

[0009] Moreover, the described steam spraying device includes device body, connection tubes, steam nozzle, steam pipes, steam outlet and steam generator. Steam generator is connected with steam pipes and steam nozzle is installed on the steam pipes with steam nozzle being the steam outlet, extruded from device body.

[0010] Furthermore, the described connection tube is attached to the plaiter.
Moreover, the described connection tube is attached to the plaiter with a detachable mount.
Furthermore, the described device is ring shaped, with steam pipes circularly installed around the device body. The ring shaped steam outlet is inside the device body.
Furthermore, the described design has one or more steam pipes.
Similarly, the design also has one or more steam nozzle.
This invention patent application also aims to provide a solution to pretreat fabric inside the dyeing machine. The steam nozzle will spray steam to the fabric along the fabric pathway, releasing internal stress, enabling a smooth operation, reducing fabric stacking drastically.

[0011] Furthermore, the described method is to install steam spraying device along the fabric pathway. This device includes connection tube, steam nozzle, steam pipes, steam outlet and steam generator. The steam generator is connected with steam tubes and the steam nozzle is installed on the steam tube with it being the steam outlet, extruding out form the device body. The above device sprays steam to the fabric, releasing internal stress; reducing fabric stacking drastically.

[0012] This invention patent describes internal fabric pretreat device and method. When fabric is cycling inside the dyeing machine, the steam nozzle placed after fabric delivering channel and before plaiter can spray steam to the fabric, releasing internal stress, allowing a smoother cycling, reducing fabric stacking drastically. Dyeing solution penetration has also been increased, resulted in a much more even color spread on the fabric and reduced dyeing time. The high temperature steam can also extract moisture out of the fabric, eliminated the needs for pretreatment machine to achieve the same result, lowering energy cost, carbon footprint and production cost.

Description of the drawings

[0013] 

Figure 1 shows the layout of different mechanical components of the system.

Figure 2 shows the example dyeing machine steam nozzle structure layout.

Figure 3 shows the example dyeing machine steam nozzle section view.

[0014] Thereinto: 1 - roller, 2 - high temperature steam device, 3 -plaiter, 4 - fluid nozzle, 5 - storage trough, 22 - steam nozzle, 23 - connection tube, 24 -steam pipe and 25 - steam outlet.

Embodiments of the invention

[0015] The example and figures below describes the technical solution of this patent to give a better understanding to the public, but the patent technical solution will not be bounded by this description.

[0016] Figure 1 shows the schematic of the dyeing machine and other mechanical components. Fabric enters the machine through fabric storage trough 5, being bought up by roller 1. After passing through fabric storage trough 5, the fabric enters the steam spraying device 2 and descends to the dyeing solution nozzle 4 and enters plaiter 3. It falls back to the storage trough 5 and the above steps repeats as the fabric cycles.

[0017] As shown in figures 2-3, this invention patent of pretreating fabric inside dyeing machine has a steam spraying device 2, in this example, steam spraying device includes device body, the described device on plaiter 3, connected through connection tube 23 with plaiter 3, steam generator (not shown in figure) is connected with steam pipe 24, steam nozzle 22 is installed on steam pipe 24, steam outlet 25 is the steam exit for steam nozzle 22, the connection tube 23 is extruded from device body. When fabric passes through the steam spraying device 2, steam will enter steam pipe 24 into steam nozzle 22, exiting form steam outlet 25 to the fabric. When fabric is in contact with steam combined with the high temperature, pressure, and air flow, internal stresses are released and the fold marks will disappear.

[0018] Using the device in this invention patent to pretreat fabric in dyeing machine, when fabric is cycling in the machine, steam nozzle can be installed before plaiter and after fabric delivery channel, spraying fabric with high temperature steam, releasing internal stresses. This can improve cycling smoothness, reduce the possibility of stacking, improve dyeing solution penetration and shorten dyeing time. The high temperature steam will de-moisturize fabric, excluding the needs of fabric pretreat machine to achieve the same dyeing result. Reduced energy consumption, carbon foot print and cost can be achieved.

[0019] It should be noted that the technical solution will not be bounded by the above content including figures in anyway. Designs with same or similar improved working principle including size, geometry, material and replacing parts with similar functionality are all protected in this patent.

Claims

1. A device that pretreats fabric internally, characterized in that: includes storage trough, roller and plaiter, and fluid nozzle is installed on the plaiter inlet and a steam spraying device installed along the fabric pathway to supply steam during operation.

2. A device that pretreats fabric internally according to claim 1, characterized in that: the described steam spraying device setup between storage trough and roller.

3. A device that pretreats fabric internally according to claim 2, characterized in that:

the described steam spraying device setup between storage trough and roller,

attached to plaiter.

4. A device that pretreats fabric internally according to any one of the claim 1-3, characterized in that: the quantity of the described steam spraying device is one or more than one.

5. A device that pretreats fabric internally according to any one of the claim 1-3, characterized in that: the described steam spraying device includes device body, connection tubes for fixing, steam nozzle, steam tubes, steam outlet and steam generator, and steam generator and steam tubes are connected and steam nozzle is installed on the steam tube with steam nozzle being the exit end, and the connection tube extrudes from the device.

6. A device that pretreats fabric internally according to claim 5, characterized in that: the described connection tube attached to platier.

7. A device that pretreats fabric internally according to claim 6, characterized in that: the connection tube and the platier are dismountably connected .

8. A device that pretreats fabric internally according to claim 5, characterized in that: the said device body is ring-shaped, and the steam tube surrounds device body and steam outlet installed inside device inner wall.

9. An method that pre-treat fabrics inside the dyeing vessel, characterized in that: steam spraying device is installed in fabric pathway, which sprays steam to the fabric to make the fabric release tension, ensuring smoothness of the operation and reducing possibility of fabric clogging.

10. An method that pre-treat fabrics inside the dyeing vessel according to claim 9, characterized in that: installing steam nozzle along fabric pathway. The described steam nozzle includes device housing, connection tubes, steam nozzle, steam tubes, steam outlet and steam generator, steam generator is connected with steam tubes, and steam nozzle is installed on the steam tube with the end being the steam outlet, and Connection pipe attached to the device body, the described steam spraying device spray steam to the fabric to release stress, enabling smooth operation and decrease over-stacking effect.

Drawing