JPS6290365A - Continuous dyeing of knitted cloth - 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 Field of Industrial Application The present invention is characterized in that a knitted fabric such as a warp knitted fabric or a cut nine-knitted fabric is immersed in a predetermined solution and padded, then heated to develop color and washed with water. Concerning continuous dyeing of knitted fabrics.

Problems to be Solved by the Prior Art and the Invention Conventionally, in the continuous dyeing method for knitted fabrics described above, the curling of the selvedges increases in the steaming chamber, and as a result, the dyed knitted fabric product has curl wrinkles at the selvedges. There were disadvantages such as the occurrence of a listing with a difference in hue between the central part and both ears, the loss of the necessary elasticity of the knitted fabric, and the length of the knitted fabric being longer than necessary.

The present invention provides a continuous dyeing method for knitted fabrics that prevents wrinkling and sting in the selvedges, provides uniform dyeing, and has stretchability and product quality that are comparable to batch dyeing methods.

Means for Solving the Problems, That is, the present invention is a continuous knitted fabric dyeing method in which a knitted fabric is immersed in a predetermined solution, padded, and then steamed to develop color and washed with water. The knitted fabric was rotated between guide rolls while relaxing the tension in the warp direction until stable color development was obtained (hereinafter referred to as the A zone). After relieving the tension in the warp direction, tentering is performed using a tentering machine (hereinafter referred to as B zone). After tentering, the knitted fabric is passed through a nip roll, a win roll, and a large number of guides placed at short intervals between them. This is an additional step in which the ears are rotated by rolls while relieving tension in the warp direction to prevent the ears from curling (hereinafter referred to as C zone).

Functions and Effects of the Invention In the present invention, the knitted fabric undergoes the A zone process and then the B zone process in the vapor deposition chamber, so that it can be widened without listing. If only the B zone process is carried out, streaks will occur over the entire surface of the knitted fabric, and if only the A zone process is carried out, the wrinkles at the selvedge portions may not be sufficiently prevented. Furthermore, by reducing the process in the C zone, the knitted fabric is finished without slipping, and the increase in curl at the edges is prevented.

In each process of the A zone, B zone, and C zone, the tension in the warp direction of the knitted fabric is adjusted to loosen it, so there is no loss of elasticity, and there is also the disadvantage of making the fabric longer than necessary. Corrected.

Embodiments of the invention are shown in the drawings. 20 is a panda,
The device 80, which squeezes the knitted fabric 10, which has been immersed in a predetermined solution of dyes and chemicals and has been sufficiently expanded, to a constant squeezing rate, is two guide rolls. 40 is a deposition chamber, 4
1 is a main body, 42 is an inlet, and 48 is an outlet.

50 is a guide roll for performing the A zone process, 51 is a drive roll, and 52 is an idle roll. 60 is a tentering machine that performs the B zone process, 61 is an expander roll, 62 is a drive roll, and 68 is a bar that can be moved in the horizontal direction to adjust the area in which the knitted fabric contacts the expander roll 61. can. 70 performs the C zone process, 71 is a nip roll consisting of a drive roll 711 and an idler roll 712, 72 is an idler roll, 73 is a drive roll, and 74 is a wince roll. The distance between each roll is set not to exceed 500 mm. 80 is a bar 81 provided to ensure the amount of knitted fabric. 90 is a supply roll for supplying the knitted fabric to the next process (washing process);
91 H N11ho -R, heat 92 is a bar. Each drive roll 51 in the deposition chamber 40.
62, 711, 78.74 and 91 are transmissions (
(not shown) can adjust the tension of the knitted fabric between them.

[Brief explanation of drawings]

The drawings are explanatory diagrams of the present invention. 10... knitted fabric, 20... bag, ripe 40... vapor deposition chamber, 50... guide roll, 6
0... [11! , 71...Nip roll,
72.78...Guide roll, 74...Win's roll.

Claims (1)

[Claims] In the continuous knitted fabric dyeing method, in which the knitted fabric is immersed in a predetermined solution and padded, then steamed to develop color and washed with water, the knitted fabric is dyed in the warp direction in a steaming chamber until stable color development is obtained. After rotating the knitted fabric between the guide rolls while relieving the tension, the knitted fabric with stable color development is tenterized using a tentering machine while relieving the tension in the warp direction, and the tentering is completed. The knitted fabric is characterized by the addition of a process in which it is rotated by a nip roll, a win roll, and a number of guide rolls placed at short intervals between them to relieve tension in the warp direction and prevent curling of the selvedges. A continuous dyeing method for knitted fabrics.