JPS59116487A - Dyeing method - 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 The present invention relates to a dyeing method by dipping, and more particularly to a dipping dyeing method that produces dyeing in which the shade of a color changes continuously, which is said to be "zero brightness".

Dyeing by soaking the base material (the material to be dyed) in a dyeing tank is a commonly used method, and by changing the soaking time, the degree of dyeing can be changed and the color can have shading. This is also a common practice, and a dyeing method called ``bokashi'' in which the shade of color changes continuously is also used.

The present invention relates to an improvement in a dyeing method that produces this "shading", and relates to a method that can achieve excellent "shading" dyeing.

Conventionally, the general methods for this "bokashi" dyeing are to manually immerse the substrate into a dyeing tank and take it out and dye it while making visual judgments, to use a simple air cylinder, or to use a cam attached to a motor. This was a method of dyeing using a device with a sliding shaft mechanism that was moved up and down.

However, this method has had various problems as described below.

In other words, since manual methods are manual, they inevitably lack productivity and uniformity of the dyed layer, and methods that utilize only vertical movement are not particularly noticeable when working with large substrates, but For small substrates, such as plastic lenses for glasses, frames, lighters, buckles, and other small items, the boundaries between dyed and undyed areas are clearly visible, resulting in a uniform ``blur'' finish. This inhibited the change and did not result in complete "foolish" staining.

The inventors of the present invention have completed the present invention by intensively studying a dyeing method that provides "shading" without these problems.

That is, the present invention is characterized in that the base material is dipped in a dyeing solution and dyed while finely moving up and down using a double-acting up and down reciprocating motion generated by using two types of up and down reciprocating devices in combination. This relates to a dip dyeing method.

To further explain the present invention in detail, the dyeing method of the present invention relates to an immersion dyeing method using mechanical up-and-down reciprocating motion, and the up-and-down reciprocating motion is divided into a main up-down reciprocating motion that reciprocates largely up and down, and a fine and fine reciprocating motion. A double-acting vertical reciprocating motion is created by combining the up-and-down reciprocating motion of the printing press, which reciprocates up and down at a speed faster than the rising speed of the main up-and-down reciprocating motion.

When a base material is immersed in a dyeing tank using such a double-acting up-and-down reciprocating motion, the lowest part of the base material is immersed in the dyeing tank for a long time, so that part is dyed the darkest, and the upper part is dyed darkest. As the immersion time increases, uniform and complete "gradation" dyeing with no boundary line between the dyed layer and the non-dyed layer can be obtained.

In order to achieve the complete "gradation" dyeing that is the objective of the present invention, the main up and down reciprocating motion is caused by the horizontal positioning of the structure as shown below. "Okashi" dyeing is more complete than immersing the substrate in a bath and lifting it, that is, removing the substrate from the dye bath.

The horizontal installation that causes the above-mentioned movement is a hydraulic reciprocating engine (hydraulic cylinder) and a valve that asymmetrically controls the movement of the oil (i.e., oil pressure) used there, that is, one side is moved quickly. , and a valve that provides a considerably low resistance to movement in the other direction (for example, Hydromaster manufactured by Sintered Metal Industry Co., Ltd.) is connected to the control device, which is a preferred device for the present invention.

The present invention is not particularly limited to a device that causes fine up-and-down reciprocating movement of the printing press, and a general reciprocating engine (air cylinder using pneumatic pressure, etc.) can be used without any problem.

The method of the present invention can be applied to all types of substrates that are generally dyed, but when applied to substrates made of plastic or to substrates on which plastic is coated or laminated. For example, plastic lenses and frames for glasses, lighters,
The best effect is produced when applied to small products such as buckles.

The dyeing method of the present invention makes it possible to easily and efficiently carry out uniform and complete "Bakashi 8 dyeing", and solves all the problems of conventional dyeing methods.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of an embodiment of the present invention will be described below with reference to the drawings.

The dyeing base material 5 is passed through the frame 4' to the air cylinder 3.
It is connected to the piston rod. The air cylinder is a frame 4 connected to the piston rod 8 of the hydraulic cylinder 1.
Supported by In the dyeing tank 6, for example, C,
A dye solution 7 in which a disperse dye such as Dispevse Red 50 is dispersed is present in an amount necessary for dyeing.

The dyeing process is started by operating an air compressor (not shown) by operating the operating button, and the air (compressed air) from the near compressor is sent to the air cylinder 6 through the air pipe 10, and the air cylinder enters a downward movement, and the piston The frame 4 connected by the rod 8' begins to descend from the limit switch 11. Lowering frame 4
' passes through the limit switch 12 and reaches the limit switch 16, the air is switched by the solenoid pulp, the air cylinder changes to an upward movement, and the frame 4' accordingly changes to an upward movement. do. When the frame 4', which has changed to an upward movement, comes to the limit switch 12, the solenoid pulp again performs an air switching operation, and the movement changes to a downward movement.

Thereafter, similarly, frame 4' is set to limit switch 1.
It reciprocates up and down between 2 and 16.

Hydromaster (manufactured by Sintered Metal Industry Co., Ltd.) is connected, and the air from the air compressor is sent to Hydromaster 2 through air piping, and the movement of oil (hydraulic pressure) is controlled by Hydromaster, and oil piping 9 connects hydraulic cylinder 1. is transmitted to the hydraulic cylinder, and under the control of the air cylinder 6, the vertical reciprocating motion of the frame 4 is very fast in descending and extremely smooth in ascending. Even if it is reversed, the effects of the present invention can still be achieved.

Further, the position of the limit switch is determined so that the vertical reciprocating motion of the frame 4' by the air cylinder 6 is at a constant speed and the range of motion is considerably smaller than the range of motion of the frame 4. Furthermore, since the limit switches 12 and 16 are linked to the vertical reciprocating motion of the piston rod 8, the two vertical reciprocating motions are double-acting, and this double-acting vertical reciprocating motion causes the substrate 5 to enter the dyeing solution. predetermined part,
It is immersed for a predetermined period of time to create a "bokashi" dyeing.

After a predetermined period of time, the operation of the limit switch 12 is stopped, and the frame 4' is raised to the IJ limit switch 11 to complete the dyeing. Further, if necessary, the dyed substrate is subjected to subsequent steps such as washing with water and drying.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an apparatus for carrying out the invention. 1: Hydraulic cylinder 2: Hydromaster filter: Air cylinder 4.4': Frame 5: Base material 6: Dyeing tank 7: Staining liquid 8.8': Piston rod 9 Oil piping 10: Air piping 11...15: Limit Switch Patent Applicant Name Toagosei Kagaku Kogyo Co., Ltd. 1157 Ichifuichiμ 489-"2' 6

Claims (1)

[Claims] 1. An immersion dyeing method characterized by dyeing by immersing the substrate in a dyeing solution while finely moving the substrate up and down using double-acting up-and-down reciprocating motion generated by using two types of up-and-down reciprocating devices together. .