JPS6123303B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION When dyeing a fabric, the present invention involves creating a shrinkage texture in the dyed fabric during the dyeing process.
Furthermore, the present invention provides a continuous dyeing method and apparatus for fabrics with good dyeability.

Due to the shortage of natural fibers, synthetic fibers are currently being developed, and polyester fibers, which are effective as fabric fibers, have been mass-produced.

However, when compared to natural fibers, such polyester fibers lack dye adhesion, that is, dyeability, texture, etc. Therefore, in the conventional method of giving the polyester fibers a texture and shrinkage as well as dyeing them, the texture and shrinkage are first performed individually, and then the dyeing process is carried out. Furthermore, after the dyeing process, a large amount of water resources are used. Currently, it is used for cleaning. In such conventional methods, texture, shrinkage processing, and dyeing processing are each performed using separate processing means, so for example, a large amount of heat energy and labor is required during the shrinkage processing. expenses, water resources, etc. are expended;
Furthermore, a large amount of labor costs, thermal energy, water resources, etc. are expended during the dyeing process. Therefore, the cumulative amount of heat energy, labor costs, etc. during both processing is large and is not economical.

Furthermore, in the past, dyed fabrics were washed using a washing device using a liquid flow action or simply a tank containing a washing liquid, which consumed a large amount of washing water and was uneconomical.

The present invention has been made in view of the above, and its first purpose is to continuously perform shrinking and dyeing of fabric in the same steamer, thereby reducing the thermal energy and labor costs of conventional methods. This contributes to resource conservation by reducing the amount of waste in half, and provides shrinkable and dyed fabrics with low processing costs. A second object of the present invention is to perform dyeing with a high degree of dyeing by using a liquid jet dyeing method in combination without causing wrinkles in the fabric and maintaining a predetermined amount of shrinkage. A third object of the present invention is to pre-wash dyed fabrics by spraying hot water onto the fabrics at the end of the dyeing process, thereby reducing the cleaning performance during main washing.

Embodiments of the present invention for achieving the above objects will be described in detail below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a steamer can for treating fabric under high pressure and moist heat. An inlet-side sealing mechanism 4 and an outlet-side sealing mechanism 5 are provided at the inlet 2 and the fabric outlet 3, respectively.

These sealing mechanisms are provided to allow the introduction and extraction of fabrics while maintaining high humidity and heat within the high-pressure steamer can body 1. It has a pair of seal rubber rolls 4 ₁ , a liquid seal tank 4 ₂ and a throttle bar 4 ₃ provided on the inlet 2 side from the seal rubber rolls. The other outlet-side sealing mechanism 5 includes a pair of seal rubber rolls 5 ₁ which are pressed against each other, and an annealing tank 5 ₂ provided on the outlet port 3 side of the seal rubber rolls. Numerals 6 ₁ , 6 ₂ , 6 ₃ , and 6 ₄ are net conveyors that are vertically spaced apart in multiple stages inside the steamer can body 1 , and a gap a is formed between the net conveyors 6 ₁ and 6 ₂ . A gap b is formed between the net conveyors ₆₂ and ₆₃ , and a gap c is formed between the net conveyors ₆₃ and ₆₄ . Nozzles 7 are arranged in a staggered manner along each of the net conveyors to inject dyeing solution into the gaps a, b, and c. Further, near the end of the gap c formed between the net conveyors ₆₃ and ₆₄ , nozzles (5 nozzles in this embodiment) 8 are provided for spraying cleaning hot water toward the gap c. . Reference numeral 9 denotes a staining solution tray provided below the net conveyor ₆₄ at the lowest stage, and 10 denotes a washing water tray. Washing hot water is sprayed from the nozzle 7 and accumulated in the washing water receiving tray 10, and is sprayed from the nozzle 8 by a pump (not shown). Reference numeral 11 denotes a drip-proof plate that prevents dew inside the steamer can 1 from dripping onto the fabric 12 being transferred within the steamer can.

Next, to describe its function, first, the inside of the steamer can 1 is maintained at a high humidity and heat of 120 to 155°C, and the liquid sealing tank ₄₂ is filled with a predetermined dyeing solution.
Also, cooling water is filled into the slow cooling tank ₅₂ . Therefore, the fabric 12 is passed through the introduction side sealing mechanism 4, and the fabric 12 impregnated with the dyeing solution is passed through the gaps a, b, and c formed by the net conveyors ₆₁ , ₆₂ , ₆₃ , and ₆₄ in the steamer. While being sequentially guided and transferred, color development progresses as the material receives moist heat. These gaps a, b, c
As the color development progresses, the fabric transferred in this order receives the spray pressure of the dyeing solution sprayed from the nozzle 7, so that the dyeing solution penetrates into the fibers of the fabric again, meandering between the upper and lower net conveyors. The paper is transferred as the net conveyor rotates. Therefore, the fabric transferred by both the upper and lower net conveyors is subjected to the liquid pressure jetted from the nozzle 7, and the dyeing liquid is press-in and impregnated into the fibers of the fabric, and the fabric is meandered between the upper and lower net conveyors. When the meandering fabric rises and falls, the spraying force of the dyeing solution causes vibrations and an effective kneading force is exerted. In this way, kneading and tapping forces are repeatedly applied to the fabric using the spraying force of a high-temperature dyeing solution (disperse dye) that is close to the temperature inside the steamer, effectively causing the fabric to shrink and texture. The staining progresses as the staining progresses. Immediately before the fabric 12 is led out of the gap c, the dyeing, shrinking, and texture processing of the fabric are completed, and then the fabric is washed by receiving the spray pressure of the cleaning liquid from the nozzle 8. That is, since the cleaning is carried out using the jet pressure of high-temperature cleaning liquid from the nozzle, the cleaning liquid is permeated into the inner core of the fabric while it is in a swollen state, so that effective pre-washing is performed.

In the embodiment shown in FIG. 2, the fabric 12 impregnated with a dyeing liquid supplied into the steamer can 1 is guided by guide rolls 13 to be dyed by steaming, and then the fabric 12, which is impregnated with a dyeing liquid supplied into the steamer can 1, is dyed by steaming, and then the fabric 12, which is impregnated with a dyeing liquid supplied into the steamer can 1, is dyed by steaming, and then the fabric 12, which is impregnated with a dyeing solution, is dyed by steam dyeing. is supplied into the gap c formed by the conveyors ₆₃ and ₆₄ ,
The fabric passing through the gap c has its dyeability enhanced by the spray force of the dyeing solution from the nozzle 7 as in the previous embodiment, and also causes texture and shrinkage, and then the high-temperature cleaning solution is sprayed from the nozzle 8. The fabric is effectively pre-washed under pressure. This embodiment is effective for filament fabrics.

As described above, the present invention provides a fabric passageway in a gap formed by vertically disposing an endless net conveyor having liquid permeability, through which the fabric to be treated is fed into a high-pressure steamer in which high-temperature, high-pressure, moist heat is maintained. The dyeing liquid is supplied to the cloth and transported as the endless net conveyor rotates, and then the dyeing liquid is sprayed onto the transferred fabric in the fabric passage from dyeing liquid injection nozzles arranged vertically in a staggered manner along the fabric passage. The fabric is pre-washed by spraying cleaning liquid from a nozzle near the outlet of the passage, and since the high-temperature dyeing liquid acts on the fabric, the high-temperature liquid acts as a carrier. The adhesion of the dye to the fabric is improved, good dyeing is achieved, the texture and shrinkage of the fabric are improved, and a soft and stiff dyed fabric is obtained. Further, since the cleaning liquid from the nozzle is sprayed onto the fabric when the fabric is inflated, pre-washing can be effectively performed in the steamer can, and the subsequent cleaning process and means can be simplified.

[Brief explanation of the drawing]

The drawings all show embodiments of the present invention, with FIG. 1 being a sectional view showing the first embodiment of the device, and FIG. 2 being a sectional view showing the second embodiment. DESCRIPTION OF SYMBOLS 1... Steamer can body, 2... Fabric inlet, 3... Fabric outlet, 4... Inlet side seal mechanism, 4 ₁ ... Seal rubber roll, 4 ₂ ... Liquid sealing tank, 4 ₃ ... Squeezing bar, 5...
Output side seal mechanism, 5 ₁ ... Seal rubber roll, 5
₂ ... Annealing tank, 6 ₁ , 6 ₂ , 6 ₃ , 6 ₄ ... Net conveyor, a, b, c... Gap, 7... Staining liquid nozzle,
8...Cleaning liquid nozzle, 9...Dyeing liquid saucer, 10...Washing water saucer, 11...Drip-proof plate, 12...Fabric, 13...Guide roll.

Claims (1)

[Scope of Claims] 1. The fabric to be treated is fed into a high-pressure steamer that maintains high-temperature, high-pressure, moist heat, and placed in a fabric passageway in a gap formed by vertically disposed endless net conveyors having liquid permeability. The dyeing solution is supplied and transferred as the endless net conveyor rotates, and the dyeing solution is sprayed onto the transferred fabric in the fabric path from the dyeing solution injection nozzles arranged vertically in a staggered manner along the fabric path. A continuous fabric dyeing method characterized by pre-washing the transferred fabric by spraying a cleaning liquid from a nozzle near the outlet. 2. Inside the high-pressure steamer can that retains high-temperature, high-pressure, moist heat, there are upper and lower liquid-permeable conveyors that extend laterally and are spaced apart from each other in the vertical direction; A large number of dye solution nozzles are arranged in a zigzag pattern along the upper and lower sides and spray the dye solution toward the upper and lower gaps; 1. A continuous fabric dyeing device characterized by having a large number of cleaning liquid nozzles that spray cleaning liquid.