JPH042704B2 - - Google Patents

Description

[Detailed Description of the Invention] Currently, in the textile processing industry (dying processing, resin processing, etc.), textile materials, that is, original fabrics, are immersed or coated with a treatment bath solution according to the purpose. The desired result is obtained through the heat treatment and drying process.

By the way, the pre-process of this work involves soaking the fiber material,
A process called squeezing is required, and the amount remaining in the fiber material after squeezing is generally about 70% by weight.
% is the limit.

However, it has gradually become clear that the amount actually required today is about half of that amount, and that the remaining adhering bath solution only has the effect of inhibiting migration. .

Japanese Patent Publication No. 57-40266 has been proposed to solve the above problem, but since it uses radiation (beta rays) to detect the amount of solution attached, it is not subject to the Radioactive Substances Control Regulations. It should be said that general use in strict privacy is virtually impossible.

In view of the current situation, the present invention has been devised and developed in such a way that a certain amount of treatment liquid corresponding to various fiber micelle gaps (crystal interlayer gaps) can be efficiently applied through automatic control by measuring changes in dielectric constant. be. It also enables products with reproducibility to be obtained. An example of implementing the present invention will be described below based on the accompanying drawings.

Reference numeral 1 is a bath liquid bath, which stores processing liquids 2 such as dye liquid and resin liquid. Reference numeral 3 denotes a pressure tank disposed near the center of the vat, which carries the treated liquid 2 in the vat 1 into the tank 3 via a suction pipe 3a and a pump 3b provided in the pipe line. The processing liquid pumped into the tank 3 is kept under a constant pressurized state. 3
C is a liquid sending pipe provided at the bottom of the tank 3 on the other side opposite to the suction pipe 3a, and an electromagnetic pressure regulating valve 3d is provided in the middle of the pipe.
At the tip, a jet beak tube 3e having a length l that at least matches the width dimension of the running fabric, which will be described later, is provided at the upper surface of the running fabric and in the width direction perpendicular thereto, and on the lower surface of the tube 3e. A slit with a length matching at least the width of the cloth and a width of 0.1 mm to 0.5 mm is bored. Note that 3g is a pressure sensor installed on the ceiling inside the tank, which is linked to the operation of the pump 3b for the control unit described later.
That is, the pump 3b is operated so that the pumped processing liquid 2 is kept at a constant pressure within the tank, and when the electromagnetic pressure regulating valve 3d is opened, the processing liquid at a constant pressure stored in the tank is pumped up. The water is ejected from the slit f of the spout pipe 3e.

4 and 4' are detection electrodes provided at upper positions on the front and rear walls of the bath liquid vat 1, which have a width dimension equal to or greater than the width dimension of the cloth, and are respectively made of two metal plates. In other words, the two plates are arranged at a constant gap that allows the fabric to pass between the two plates so that they do not come into direct contact with each other.

5 is the raw material of the object to be processed (hereinafter referred to as fabric)
A necessary amount of processing liquid is allowed to pass through the bath liquid vat 1 so as to be deposited thereon.

That is, 6a and 6b are edge guide rollers, 7
a, 7b are feed rollers, 8a, 8b, 8c
9 is a spreading roller, 9 is a guide roller, 10a,
10b is a treatment liquid applying roller, 11a and 11b are pressure rollers, 12a and 12b are delivery rollers, and the fabric 5 is caused to run in the direction of the arrow at a constant speed suitably determined by a command from a control unit, which will be described below.

Reference numeral 13 is a control unit which controls the feed rollers 7a, 7b and the feed roller to run while adjusting the tension of the fabric at a constant speed appropriately determined depending on the fabric composition of the fabric 5, the type and concentration of the treatment liquid, etc. The rotation of 12a and 12b is automatically controlled. However, it is not always possible to run at a fixed speed, but the speed may be increased as appropriate in response to commands from the detection electrodes 4, 4'.
Or it is automatically controlled to become slower. Specifically, while the fabric 5 is passing through the bath liquid vat 1, the spout pipe 3
The processing liquid ejected from the slit f in e will be deposited, and if the amount of deposit does not reach the appropriate value or exceeds the appropriate value, the process will be delayed in the former case and faster in the latter case. This is done by promoting a change in the dielectric constant of the fabric 5 as it passes through the electrodes 4, 4'.

The amount of treatment liquid that adheres to the fabric 5 is related to the running speed of the material, the specific gravity of the bath liquid, the penetration speed, the slit width t of the spout tube 3e, etc.

In this device, the guide roller 9 and the cloth spreading roller 8c serve to allow the cloth 5 to pass between the opposing plates of the electrode 4 without coming into contact with them. On the other hand, the treatment liquid applying rollers 10a and 10b are provided with a jet pipe 3e.
The treatment liquid ejected from the upper roller 10a and the lower roller 10b is received by the upper roller 10a and the lower roller 10b, and the treatment liquid is applied as the fabric 5 passes between both rollers. The upper roller 10a has a larger diameter than the upper roller 10a, and both are configured to freely rotate with a length dimension that is approximately the same as the width dimension of the fabric. Note that the pressure rollers 11a and 11b are the above-mentioned application rollers 10a,
This roller is used to effectively permeate the treatment liquid applied at the location 10b into the fabric, and the lower roller 1 is a roller that rotates freely.
1b is configured to be under constant pressure against the upper roller 11a by a spring or other means, and the upper roller 11a is connected to a delivery roller 12b so that the fabric 5 to which the treatment liquid has been applied is placed on the electrode 4'. It serves as a guide roller to pass between opposing plates without touching them.

The present invention has the above-described configuration, and exhibits the following excellent effects.

(1) Since there is no immersion as in the conventional method, the amount of heat used in the drying process is greatly reduced.

(2) Most of the necessary costs in factories are consumed in burning heavy oil to obtain the above-mentioned amount of heat, but this cost will be reduced to about half or less, and air pollution will be halved.

(3) Excessive bath liquid adhesion due to immersion may cause migration due to gravity or other causes, and if the dye liquid oxidizes, it may cause staining spots and discoloration every time it is washed. In the case of resin processing, an appropriate amount of resin becomes a resin within the molecular gaps of the fiber material, increasing wrinkle resistance.When migration occurs, it gathers on the fiber surface and remains fixed in the resin, so every time it is washed ( (Each time you rub it) it rubs off along with the surface resin, which impairs the resin processing effect.

In the above embodiment, one bath liquid vat 1 is provided,
The desired amount of application can be obtained by passing through the bath liquid vat once,
A desired amount of application may be obtained by providing a plurality of bath liquid vats 1 and allowing the bath liquid to pass through the bath liquid several times.

In addition, in the actual operation of the present invention, the fabric is generally 50 to 60
Since the joints are joined every m, abnormal values will be detected at the joints, but it is possible to use a travel meter or mark the joints and mark them as electrodes 4 and 4' pass through. By detecting them before or at the same time, it is possible to prevent the roller speed from being changed or the amount of treatment liquid to be ejected from being changed immediately due to an abnormal value in that part.

As another embodiment of the present invention, a large number of bath liquid vats 1 having the above configuration are installed, and the configurations of the strips f in each jet pipe 3e are made different, or by moving the strips as appropriate. It is now possible to dye long patterns or patterns, which were previously considered impossible.

Recent research has shown that the fiber micelle gap is 10 to 13 Å for cotton, 15 to 20 Å for chemical fibers, and 5 to 7 Å for synthetic fibers.
However, according to the present invention, an appropriate amount of treatment solution such as dye solution or resin solution is applied to various types of cellulose-containing fibers, and the fiber micelle gap is automatically measured as the change in induction before and after the application. It is a material that can be efficiently permeated into the skin, dramatically improving work performance, and greatly contributing to quality improvement with reproducibility.

In the present invention, the width dimension of the electrode plates 4, 4' is made to be at least the same as the width dimension of the fabric, which is excellent in efficiently applying the treatment liquid to the entire running fabric. becomes.

[Brief explanation of drawings]

FIG. 1 of the attached drawings is a cross-sectional explanatory diagram of the device of the present invention;
FIG. 2 is a parts diagram of the orifice tube. DESCRIPTION OF SYMBOLS 1... Bath liquid vat, 2... Processing liquid, 3... Pressure tank, 3b... Lifting pump, 3d... Electromagnetic pressure regulating valve, 3e... Spout pipe, 4, 4'... Sensing electrode, 5 ...Fabric, 7a, 7b... Feeding roller, 8a, 8b, 8c... Fabric spreading roller, 10
a, 10b...Treatment liquid application roller, 11a, 1
1b...pressure roller, 12a, 12b...feeding roller, 13...control unit.

Claims (1)

[Claims] 1. A pressure tank is provided in the bath liquid part to pump up and store the treatment liquid in the bath under a constant pressurized state, and the treatment liquid in the pressure tank is pumped through a slit with a length that at least matches the width of the running fabric. The installed spray pipe is made to spray from the upper surface in the width direction of the running fabric via an electromagnetic pressure regulating valve, and a small diameter roll with a length approximately the same as the width of the fabric is placed on the upper surface of the fabric, and a small diameter roll is installed on the lower surface of the fabric. Large-diameter rolls with the same length dimensions were disposed in the bath liquid part, and rolls with a width equal to or larger than the width of the fabric were placed at the upper front and rear positions in the other bath liquid part.
A pair of electrode plates were arranged facing each other, and the fabric was allowed to pass between the electrode plates without coming into contact with each other, and the change in dielectric constant before and after the treatment liquid was applied was measured, and the amount of the treatment liquid attached was determined as necessary. An apparatus for applying processing liquid to raw material, characterized by automatically controlling an electromagnetic pressure regulating valve to maintain a constant amount.