JPS61113876A - Special feeling processing of knitted fabric - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for dyeing and processing a knitted fabric at least partially knitted with polyester false-twisted yarn. The dyeing process of knitted fabric knitted with polyester false twisted yarn is relaxed - Braset -
The dyeing process is carried out, and in the Nirakkusu process, the fabric is over-fed and processed, and the processed yarn is crimped,
Provides bulkiness.

While retaining the crimp and bulkiness imparted in this relaxing process, it is dry heat braced to fix the crimp and loops.
It was then dyed and finished.

(Problems to be Solved by the Invention) It should be noted that at least a portion of the fabric is made of polyester false-twisted yarn and contains rope yarn to create a fabric that is bulky, soft, and has a voluminous feel. The bulky, soft, and voluminous blanket-like or felt-like textures of knitted fabrics obtained by conventional techniques are suitable for specific uses and have been widely used.

However, these textures are not suitable for other uses or products, and their bulkiness results in poor snagging properties, resulting in quality problems.

(Means for solving the problem) A knit fabric made of at least a portion of polyester false twisted yarn is not soft, but has a low volume, is stiff, has excellent drapability, and has a loose feel. Also, without
The present invention was arrived at as a result of studies aimed at finding a means to create a fabric with excellent snagging properties.

That is, in the present invention, a knitted fabric at least partially knitted with polyester false twisted yarn is strained in heat at 60' (i to 100°C) before being dyed and finished.

The knitted fabric at least partially knitted from polyester false-twisted yarn used in the present invention may be knitted from 100% polyester heat-treated yarn; It may be knitted from a yarn composed of 100% polyester false twisted yarn, a polyester false twisted yarn, and a yarn composed of other fibers. .

A method of heat treatment under tension in hot water of 60°C to 100°C for 10 seconds to 10 minutes is to heat the dough under tension with a roller of 5% to 10% in hot water of 60°C to 100°C. A recommended method is to perform heat treatment for 10 seconds to 10 minutes. Even if treated with hot water at a temperature of 60°C or less for longer than 10 minutes, it is insufficient to obtain a fabric with excellent drapability that suppresses crimp, does not have a loose feeling, which is the objective of the present invention, Preferably, treatment is carried out in hot water at 85°C to 100'C. Furthermore, the heat treatment time is good for 10 seconds to 10 minutes, but less than 10 seconds is insufficient, and it is preferable to process the fabric with hot water in a folded or twisted state. It is preferable to do this in a spread state. If necessary, a step such as mangle dehydration may be added after the hot water treatment under tension. Further, after the hot water treatment under tension, heat transfer treatment under tension is performed at 150"Q-goo"o to fix the shape of the fabric obtained by the hot water treatment under tension.

゛)) The heat treatment under tension at 150"Q NlZOo°C is preferably carried out under tension with 5 to 15% underfeed and in a spread state.

After dry heat treatment under tension, normal dyeing and finishing processes are carried out.

(Example) Example-1 (Comparative Example-1) O113 polyester (100 denier/30 filament) polyester (triangular cross section) plyte false twisted yarn
Using 100% o'22G double knitting machine, fabric weight is 20.
7% of the 0g/II' punchy roma knitted fabric
It was heat-treated by immersion in hot water at 90"C for 25 seconds under tension with an underfeed of 7%, then dehydrated by a mangle, dry heat treated at 170"C for 40 seconds under tension with an underfeed of 7%, and set to dry heat.

Thereafter, the knitted fabric was disperse-dyed with a conventional polyester disperse dye at 130'Q for 40 minutes.As a comparative example, the same punch liner as in the above example was dyed in the conventional manner using a conventional continuous relaxer. , a relaxation treatment was performed at 95°C for 30 seconds under 10% overfeed, and l'
Dry heat treatment was performed for 40 seconds with FO"Q, and 1
Dispersion dyeing was carried out at 40° C. for 40 minutes. The results of evaluating the finish of this Example and Comparative Example using the following evaluation items are shown below.

Note: Both drapability and gloss are evaluated by mechanical measurement and visual judgment: Very good ◎, Good ○, Fairly bad Δ, Bad ×
It was evaluated as

From the above results, we found that by heat-treating knitted fabrics made from polyester false-twisted yarns under tension in 90'Q hot water for 25 seconds before dyeing, we were able to create a smooth interfabric texture without the unraveling feeling that was previously available. It can be seen that a knitted fabric with excellent properties can be obtained.

Claims (1)

[Claims] (1) A circle characterized by heat-treating a knitted fabric at least partially made of polyester false twisted yarn under tension in hot water of 60°C to 100°C for 10 seconds to 10 minutes before dyeing. Special texture processing method for knitted fabrics.