JPH0247353A - Apparatus for treating fabric by liquid spray - Google Patents

Abstract

PURPOSE:To quicken the removal of attached material from fabric and the impregnation and reaction of a treating liquid by introducing a fabric in expanded state into a chamber via a guide roller and blasting a high-pressure treating liquid heated at a temperature higher than the boiling point of the liquid under atmospheric pressure. CONSTITUTION:An expanded fabric F is introduced through a guide roller 9a and an inlet port 8a into a chamber 8, preheated with a heater 10, lowered by reversing the transfer direction with a guide roller 9b and delivered via a delivery port 8b and a guide roller 9c. A treating liquid W in a treating liquid tank 1 is pressurized from atmospheric pressure to a high pressure, transferred to a heating apparatus 4 by a feed pump 3, heated at a temperature higher than the boiling point of the liquid under atmospheric pressure and blasted through a nozzle 5a against the fabric F moving in said chamber 8. The treating liquid W blasted and made to collide to the fabric F immediately begins to boil and evaporate to promote the swelling of the fabric F.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a fabric processing device using liquid jetting, and a pre-treatment device for washing, desizing, scouring, bleaching, etc. on a long fabric. It can be used as

(Prior Art) A conventional fabric washing apparatus has a large number of washing tanks arranged in series, and the fabric is repeatedly immersed in the washing liquid in these washing tanks and passed through it. For desizing, a hot water bath, a pre-steamer, a desizing agent saturator, and a water washing tank are arranged in order, or a hot water bath, a desizing agent saturator, a winding device, and a reaction chamber are arranged in this order. Various types of equipment are used for scouring and bleaching, including a conveyor type, double winding type, and shake-off and retention type.

(Problems to be Solved by the Invention) Conventional cleaning equipment immerses fabric in a cleaning solution under atmospheric pressure, and desizing equipment, scouring equipment, bleaching equipment, etc. all remove desizing equipment under atmospheric pressure. Since the method involves applying processing chemicals such as detergents, scouring agents, and bleaching agents to the fabric, it takes a long time for washing or reaction with the processing chemicals, making the entire device long and requiring a large space.

This invention allows processing liquids such as cleaning liquids and processing chemicals to easily permeate and accelerate one reaction, and allows the overall length of the device to be shortened and the installation area to be reduced.

(Means for Solving the Problems) In order to solve the above problems, the present invention includes a guide roller that guides a long cloth in an expanded shape, and a treatment liquid for the cloth that is pressurized to a pressure higher than atmospheric pressure. a supply pump for pumping the high-pressure processing liquid supplied from the supply pump, a heating means for heating the high-pressure processing liquid supplied from the supply pump to a temperature higher than its boiling point under atmospheric pressure, and a high temperature obtained by heating with the heating means. and a spray nozzle attached to the heating means so as to spray the high-pressure treatment liquid over the entire width of the spread-like fabric that travels while being guided by the guide rollers. Note that the above-mentioned treatment liquid is a solution such as water for cleaning fabrics, other cleaning liquids, desizing agents, scouring agents, and bleaching agents.

(Function) A high-temperature, high-pressure treatment liquid heated to a pressure higher than atmospheric pressure and a temperature higher than the boiling point under atmospheric pressure is injected onto the spread fabric, so that the treatment liquid hits the fabric and rapidly The fabric boils and evaporates, accelerating the swelling of deposits within the fabric, the penetration of the treatment liquid, and the reaction between the treatment liquid and the fabric.

(Example) In the drawings, one end of a processing liquid passage 5 of a heating device 4 is connected to the bottom of a processing liquid tank 1 via a processing liquid supply pipe 2 and a supply pump 3, and a liquid is injected into the other end of this processing liquid passage 5. A nozzle 5a is provided. This injection nozzle 5a is
It has a long slit-shaped opening in the direction perpendicular to the plane of the paper. One end of a heat medium passage 6 surrounding the processing liquid passage 5 is connected to a steam pipe 7, and the other end is connected to a steam trap 2.
Connected to 0.

The processing chamber 8 into which the injection nozzle 5a of the heating device 4 is inserted is vertically long and has an inlet 8a on its lower surface.
A long fabric F is introduced into the chamber 8 from the inlet 8a via the inlet guide roller 9a, folded back by the internal guide roller 9b, and led out from the outlet 8b.

It is sent to the next process via the exit guide roller 9c.

The spray nozzle 5a faces the spread fabric F from the inlet 8a toward the internal guide roller 9b, and sprays the treatment liquid W over the entire width of the fabric F. Note that 1o is a heater for heating the fabric F introduced into the chamber 8, and 11 is a cover for removing splashes of the treatment liquid.

The steam pipe 7 is connected to a high-pressure boiler via a flow control valve 12, and the electromagnetic operating section of the flow control valve 12 and a temperature sensor 13 provided in the processing liquid passage 5 of the heating device 4 are connected to a temperature control device 14. The detected temperature of the processing liquid passage 5 is compared with a set value, and the opening degree of the flow rate control valve 12 is adjusted so that the difference becomes zero.

Further, the variable speed motor 16 for driving the processing liquid supply pump 3 and the processing liquid pressure detector 17 provided in the processing liquid passage 5 are connected by a circuit 19 including a pressure control device 18. The detected pressure of W is compared with a set value, and the speed of the variable speed motor 16 is increased or decreased in the direction in which the difference becomes zero.

In the above structure, the spread fabric F enters the chamber 8 via the entrance guide roller 9a and the introduction port 8a, is preliminarily heated by the heater 10, reaches the internal guide roller 9b, and changes its direction by 180 degrees. The liquid then descends and is sent to the cleaning device via the outlet 8b and the outlet guide roller 9c.

On the other hand, the cleaning water (processing liquid) W in the processing liquid tank 1 is changed to a pressure higher than atmospheric pressure by the supply pump 3 and sent to the processing liquid passage 5 of the heating device 4. Heated by high-pressure steam flowing through the medium path 6, 100"
After the temperature rises to higher than C, it is injected toward the fabric F from the injection nozzle 5a. The pressure of the cleaning water W discharged from the supply pump 3 is controlled to a desired setting value by the pressure control device 18, and the temperature of the processing liquid W in the processing liquid passage 5 is controlled to a desired setting value by the temperature control device 14. For example, when the pressure of the cleaning water W is increased to 5-/d by the supply pump 3, the boiling point at that time is 1
The temperature of the washing water W can be raised up to 58°C.

The high-temperature, high-pressure cleaning water sprayed onto the fabric F immediately begins to boil and evaporate to swell deposits in the fabric, making cleaning in the first cleaning process easier.

(Effects of the Invention) The present invention pressurizes a fabric treatment liquid such as washing water or a solution of a desizing agent, a scouring agent, or a bleaching agent to a pressure higher than atmospheric pressure.
In addition, since the treatment liquid is heated to a temperature higher than the boiling point under atmospheric pressure and then sprayed onto the spread fabric, the treatment liquid immediately boils and evaporates after colliding with the fabric, preventing swelling of the fabric's constituent fibers and deposits. Significantly accelerated compared to conventional immersion under atmospheric pressure,
The time required for removal of deposits, penetration of treatment liquid, and reaction is shortened. Therefore, the device of this invention is a cleaning device.

By installing it in front of a desizing device, scouring device, bleaching device, etc., these devices can be made shorter and smaller.

[Brief explanation of the drawing]

The drawing is a piping diagram of an embodiment of this invention. 1: Processing liquid tank, 3: Supply pump, 4: Heating device, 5
: Processing liquid passage, 5a: Injection nozzle, 6: Heat medium passage, 8:
Processing chamber, 9a, 9b, 9c guide rollers, F:
Fabric, W: treatment liquid.

Claims (1)

[Scope of Claims] [1] A guide roller that guides a long piece of cloth in a spread shape;
A supply pump for pressurizing and delivering a treatment liquid for fabrics to a pressure higher than atmospheric pressure, and a system for heating the high-pressure treatment liquid supplied from this supply pump to a temperature higher than its boiling point under atmospheric pressure. a heating means, and a spray nozzle attached to the heating means for spraying the high-temperature, high-pressure treatment liquid obtained by heating with the heating means over the entire width of the spread-like fabric that runs while being guided by the guide rollers. A fabric processing device that uses liquid jetting.