JPH0749912B2 - Continuous drying device for cloth - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention continuously heat treats a fabric to which a dye liquor has been applied,
The present invention relates to a continuous drying device for a cloth used for fixing the dye liquor to the cloth.

[Prior Art] This type of conventionally used drying device continuously passes a long fabric impregnated with a dye to be dyed and impregnated in an infrared drying chamber containing an infrared burner,
The water contained in the fabric is pre-dried, then this fabric is introduced into the hot-flue drying chamber to fix the dye to the fabric, and then the drying is further enhanced while guiding it to the hot cylinder to complete the series of drying. It is a thing.

[Problems to be Solved by the Invention] However, in such a conventional continuous drying apparatus for a cloth, that is, in a continuous drying apparatus for a cloth used for removing moisture of the cloth containing a dyeing liquid, The moisture content of the cloth that has been evaporated in the infrared drying chamber, which is performed first, is high at about 40%, so the cloth containing about 40% moisture is supplied to the hot-flue drying chamber in the next process. When drying is attempted, there is a problem in that uneven dyeing due to migration (dye migration on the fabric surface) occurs due to the wind force of the hot air received in the hot-flue drying chamber, making it difficult to obtain a dyed fabric of good quality. Further, as a means for solving this problem, it is conceivable to raise the heating temperature in the infrared drying chamber to reduce the moisture content of the cloth derived from the infrared drying chamber. When the drying temperature is increased, when the treated cloth is a mixed-spun cloth such as E · C or T · C, the fibers are melted to cause a defective reaction.

[Means for Solving the Problems] The present invention has been made in view of the above-mentioned conventional problems, and it is possible to improve the quality of a fabric without causing migration, and without causing damage (melting) of the fabric. It is an object of the present invention to provide a continuous drying device for a fabric that can obtain a good dyed fabric while holding it. Further specifically describing the present invention, an infrared drying chamber for pre-drying the fabric impregnated with the dyeing liquid is provided next with a far infrared drying chamber for drying the fabric under an atmosphere of no wind and no exhaust. It is an object of the present invention to provide a continuous drying chamber for fabrics in which a hot air drying chamber and a cylinder drying chamber are sequentially arranged after the far infrared ray drying chamber. Therefore, according to this drying device, the moisture content of the cloth pre-dried by the infrared drying chamber is about 40%, but this cloth is migrated in the next far infrared drying chamber under no wind and no exhaust, or the fabric Wrinkles are less likely to occur. For example, it is dried to a water content of about 35%,
Then, since it is finish-dried by hot air drying or the like, a good dye-fixed fabric can be obtained which does not migrate or impair the fabric quality particularly by the far-infrared drying which is the above-mentioned windless and exhaustless drying.

[Examples] The present invention will be described below in detail based on the examples shown in the drawings.

Reference numeral 1 is a cloth to be dyed, and a dyeing tank 2 for applying and impregnating a predetermined dyeing solution to the cloth along the transfer path direction of the cloth 1, and the cloth impregnated in the liquid tank 2 Three infrared drying chambers 3 for pre-drying for promoting water vaporization are installed, and next to the infrared drying chambers 3, far infrared drying chambers 4 for removing and advancing the moisture content of the fabric in a windless state are provided on the upper and lower sides 3.
The far-infrared ray drying chambers 4, 4, 4 are installed in stages, and the hot air drying chambers 5 are provided in upper and lower three stages. 6 is a cylinder drying chamber provided next to the hot air drying chamber 5.

An important point in this embodiment is that the infrared ray drying chamber 3 is provided next to the far infrared ray drying chamber 4 for promoting the drying of the fabric under no wind. That is, this far infrared drying chamber 4
Is a panel-shaped heater 42 for arranging a large number of guide rolls 41 for moving the cloth 1 in a meandering state from the upper part to the lower part and for irradiating the surface far infrared rays of the cloth meandered and transferred by these guide rolls 41. Is provided. The panel-shaped far-infrared heater 42 is a panel-shaped bent metal pipe that can supply steam pressure of superheated steam, for example, 170 to 180 ° C., and far infrared rays are further formed on the surface of the metal pipe. It is constituted by applying an appropriate ceramic material capable of radiating light.

A panel-shaped heater 42 formed by coating such a ceramic material on the surface is arranged in parallel along the transfer path of the cloth 1 meandered by the guide roll 41, and each heater is further arranged.
For example, 170 is generated by a steamer (not shown).
By circulating superheated steam heated to ~ 180 ° C, the panel-shaped heater 42 becomes 170 ~ 1
The fabric is heated to about 80 ° C., and as a result, far infrared rays are radiated to the fabric 1 due to the action of the ceramic material, and the fabric is effectively dried under no wind.

The configuration of this embodiment is as described above. Next, its operation will be described. The cloth 1 impregnated with a predetermined dye in the dye tank 2
Is directly introduced into a plurality of infrared drying chambers 3, a part of the water contained in the fabric 1 is evaporated, and the moisture content of about 40% is obtained by passing through these three infrared drying chambers 3. Moisture content. At this water content of about 40%, dye migration or migration is likely to occur, so evaporation of water is required in the absence of wind. Therefore, in this embodiment, the inside of the three windless far-infrared drying chambers 4 which are rigid is made to meander downward from above. Since there is no wind in the far-infrared ray drying chamber 4, migration does not occur, and the running fabric in the drying chamber is taken out from the lower drying chamber 4 where the indoor humidity is relatively low. About 5 to 7% of moisture content is further removed from the cloth that is passed through the drying chamber 4. Therefore, the water content of the cloth discharged from the windless far infrared ray drying chamber 4 is about 33%, and the cloth is dried to the extent that migration does not occur. The thus dried hot air drying chamber 5 is dried to a water content of about 20%, and then the cylinder drying chamber 6 is finish-dried to a water content of about 5% to complete a series of drying processes. It is a thing.

Thus, in this embodiment, the dyeing solution is impregnated to about 40
Since the cloth having a moisture content of about 10% is introduced into the windless far infrared ray drying chamber 4 to remove the water without wind, good dye fixation without causing migration of the dye. A fabric is obtained. Further, since far infrared rays of 170 to 180 ° C. are used as a heat source for drying, relatively high speed drying is possible, and further, wrinkles are prevented from occurring and a high quality dye-fixed cloth is obtained.

[Effects of the Invention] As described above, according to the present invention, an infrared drying chamber for predrying a fabric impregnated with a dyeing liquid, and then a far infrared drying chamber for reducing the moisture content of the fabric under a windless and exhaustless atmosphere. In addition to this far infrared drying chamber, a hot air drying chamber,
Since it is a continuous drying chamber for fabrics in which cylinder drying chambers are sequentially arranged, a dye-fixed fabric that does not cause migration and does not cause wrinkles can be obtained at high speed by the above-mentioned windless, exhaust-free far-infrared drying chamber. There is an effect that is.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a drying device according to the present invention. 1 ... Cloth, 2 ... Dyeing tank 3 ... Infrared drying room, 4 ... Windless far infrared drying room, 5 ... Hot air drying room, 6 ... Cylinder drying room

Front page continued (72) Inventor Tadashi Sano 474-11 Oyabu-cho, Hikone-shi, Shiga Prefecture (72) Inventor Miteru Santo 4-4-5 Usu, Wakayama-shi, Wakayama Incorporated Shanto Iron Works (72) Inventor Ishitsuru Hakuji Hiroshi Wakayama Prefecture Wakayama City 4-4-5 Santo Iron Works Co., Ltd. (72) Inventor Shiro Teramoto Shiro Teramoto 307-9 Fujishiro, Kainan City, Wakayama Prefecture

Claims (1)

[Claims] 1. An infrared drying chamber for predrying a fabric impregnated with a dyeing solution, and then a far infrared drying chamber for reducing the moisture content of the fabric under an atmosphere of no wind and no exhaust, and further the far infrared drying. A continuous drying device for fabrics, characterized in that a hot air drying chamber and a cylinder drying chamber are sequentially arranged after the chamber.