JPS5953939B2 - Fabric gloss processing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous processing method for a glossy fabric.

BACKGROUND ART Conventionally, as a process for producing gloss on a fabric, a pre-treated fabric is subjected to mercerization as a secondary process, thereby producing gloss on the surface of the fabric.

However, in conventional polishing processing of this type, that is, mercerization processing, it is necessary to apply a caustic liquid to the fabric to be processed, a means to apply tension to the fabric to which the caustic liquid has been applied, etc., and to create gloss on the fabric. Since a plurality of processing steps are required for mercerization, it takes a long time to complete the mercerization.

Further, the equipment installed in each process is important, and in particular, the tenter that applies tension to the fabric requires a vast equipment area and the equipment cost is also large.

Furthermore, conventional mercerization is only performed when the fabric to be processed is a woven fabric, and cannot be applied to knitted fabrics, so it is not possible to create gloss on the surface of knitted fabrics. Met.

The present invention has been made in view of the above circumstances, and aims to produce luster on fabric without using conventional caustic solution treatment and applying tension, which was considered impossible with conventional methods. It can make knitted fabrics shiny, and since no caustic liquid is used, there is no need for chemicals, and there is no need for a chemical application device, and there is no need for a tenter for alteration, making it extremely economical. This has the effect of making it possible to perform various types of processing.

The present invention will be explained in detail below based on embodiments shown in the drawings.

FIG. 1 shows an example of a device used to carry out the present invention, that is, a high-pressure steamer. Reference numeral 1 denotes a steamer can for treating fabrics under high pressure and heat. A fabric inlet 2 and a fabric outlet 3 are provided, and each of the fabric inlet 2 and fabric outlet 3 is provided with an inlet-side sealing mechanism 4 and an outlet-side sealing mechanism 5, respectively.

These sealing mechanisms may have any structure as long as they can allow the introduction and extraction of the fabric while maintaining the high humidity and heat inside the high-pressure steamer can body 1. In this embodiment, the introduction-side sealing mechanism 4 is has a pair of sealing rubber rolls 4□ that are pressed against each other, a liquid sealing tank 4□ and a squeezing roll 43 provided on the inlet 2 side from the sealing rubber rolls.

The other outlet-side sealing mechanism 5 has a pair of seal rubber rolls 50 pressed against each other, and a liquid seal tank 5□ provided on the outlet port 3 side from the seal rubber rolls.

Reference numeral 6 denotes a group of guide rolls disposed inside the high-pressure steamer can body 1 for transporting the fabric, and these guide roll groups 6 are arranged in two stages, upper and lower, in order to transfer the fabric in an up-and-down meandering manner. A tension adjustment roll 7 is disposed at a suitable position.

Reference numeral 8 denotes a hot water supply tank installed inside the steamer can body 1 and near the fabric inlet 2. A fixed amount of hot water is always circulated and supplied into the hot water supply tank 8, and the steamer can The fabric supplied into the body 1 is hydrated in this hot water supply tank 8.

Reference numeral 9 denotes a prewash tank installed inside the steamer can 1 and near the fabric outlet 3, and a fixed amount of hot water is always circulated and supplied to this prewash tank.

10 is a fabric to be treated which is mainly made of cotton fibers, for example.

Next, gloss processing using the above-mentioned apparatus will be explained.

First, the steamer can body 1 is heated so that saturated steam at a high temperature of around 140°C to 160°C is maintained inside the steamer can body 1.
Steam is sent into the liquid seal tank 42 and hot water supply tank 8.
It is desirable that the temperature of the hot water that is circulated and supplied to the hot water supply tank, which supplies a certain amount of water, is high enough to follow the temperature inside the steamer can.

In addition, cooling water is circulated and supplied to the slow cooling tank 5□ so that hot water of about 50° C. is always maintained, and high-temperature water is supplied to the prewash tank 9.

Therefore, the fabric 10 is fed into the steamer can body 1 through the introduction side sealing mechanism 4, and the fabric 10 is first guided by the first tension adjustment roll 7, then the first guide roll 6, and then into the hot water supply tank 8. After the fabric is sufficiently impregnated with hot water, steaming is performed using high pressure and heat inside the steamer can while the fabric is guided and transferred by guide rolls inside the steamer can.

This steaming causes the fibers of the fabric to swell, giving the fabric a glossy appearance.

In other words, when the fibers of cotton yarn are not swollen, they are flat and have tape-like twists, as shown in Figure 2 A, and the fiber surface is never smooth and has many folds or wrinkles. There is no gloss on the fiber surface.

However, when the fibers are swollen by steaming according to the present invention, each fiber constituting the cotton yarn swells into a substantially circular cross section as shown in the opening of Figure 2, and each fiber row is aligned in a certain direction. Diffuse reflection from the fibers is eliminated, and fibers with a glossy appearance, that is, fabrics with a glossy surface, can be obtained.

As described above, the present invention supplies only cotton fibers or a knitted or woven fabric containing cotton fibers into a high-pressure steamer that maintains high pressure and heat above normal pressure and can continuously pass the fabric. The fabric is impregnated with sufficient hot water and then steamed using high temperature, high pressure, and heat in a steamer to swell and align the fiber rows of the cotton yarn. It is possible to create a deep gloss on the surface without using.

Another feature of the present invention is that there is no need to apply tension, so it is possible to create gloss on the surface of the knitted fabric, which has the effect of creating gloss on the knitted fabric, which was considered impossible with conventional mercerization. .

Further, according to the present invention, since a tenter or the like is not used, the gloss generating equipment is simplified, and it is possible to continuously produce a single gloss fabric with a highly economical apparatus.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an example of the apparatus used to carry out the present invention, and FIG. 1... Steamer can body, 2... Fabric inlet, 3...
Fabric outlet, 4... Inlet side seal mechanism, 5... Outlet side seal mechanism, 6... Guide roll, 7... Tension adjustment roll, 8... Hot water supply tank, 9... Prewash tank, 10... fabric to be treated.

Claims (1)

[Claims] 1. A knitted fabric or woven fabric containing only cotton fibers or cotton fibers is fed into a high-pressure steamer that maintains high pressure and heat above normal pressure and that can continuously pass the fabric, and heats the fabric in the steamer can with sufficient heat. A method for lustering a fabric, which comprises impregnating it with water and then steaming it with high temperature, high pressure, and heat in a steamer to swell and align the fiber rows of cotton yarn.