KR920006472B1 - Scouring method for cotton fabric and system therefor - Google Patents

Abstract

No content.

Description

Method and device for refining cotton fabric

Explanatory drawing which shows the example of the installation of the apparatus which concerns on this invention.

* Explanation of symbols for main parts of the drawings

1: fabric 2: moist heat reaction chamber

3: refining liquid 4: liquid tank

5: guide roller group 6: shaking machine

7: rotating drum 8: endless conveyor

9: interval 10: thermal fluid

The present invention relates to a method and apparatus for refining cotton fabric fabrics, which can compactly perform cotton fabric fabrics, and can perform a fine quality refining process continuously without causing wrinkles by rapidly and uniformly saving energy and equipment costs. will be.

Conventionally, in the case of continuous refining of the long cotton fabric which is industrially produced and processed, the cotton fabric to be refined is perfranged (trademark of Sando Ogogo Sho, Japan), J box, L box, etc. It is carried out by using a kinetic refining apparatus. The refining method using the continuous processing apparatus impregnates the area with a refining liquid containing caustic soda as a main component, and then puts, for example, 3000 m to 5000 m in a predetermined liquid tank, for example, 30 The refining process is carried out by moist heat treatment while depositing and transporting the processing time from minutes to 60 minutes.

However, this conventional cleaning process requires about 1 hour or a long time until the completion of the refining treatment, and the processing speed is poor, or the fabric is superimposed during the impregnation reaction of the refining liquid, so that not only the treatment stain but also the processing stain. Because of this, wrinkles can occur and quality refining cannot be expected. In other words, it is ideal to carry out continuous refining of cotton fabrics while transporting them to guide rollers under excessive moisture, but it is difficult to process long-range fabrics longer than 3000m in consideration of actual cost and equipment area. It is considered to carry out stacking by no tension. However, if the scouring is carried out by loading fabrics of 3000m to 5000m in a small space, wrinkles may occur due to the loading pressure or treatment stains may occur due to uneven contact of the outside air, which wastes more medicine and time than necessary to solve the problem. It is linked to doing. In addition, the twisted yarns, high-density fabrics, there was a problem that can not be good refining due to the loading wrinkles.

The present invention has been made in view of the problems in the conventional continuous refining process. That is, the wrinkles generated during the conventional refining treatment tend to be significantly wrinkled when the fabric is a high-quality fabric such as a twisted yarn or a high-density fabric, and this wrinkle causes staining at the time of post-process dyeing. Otherwise, residual wrinkles occur in the final finished product, resulting in a defective product.

Since this is because the fat adhered to the fabric remains loaded as it is, the staining occurs due to the loading pressure. Therefore, in this support, the cloth is stretched under the tension state by the guide roll group before the fabric is stacked. Impregnation treatment is carried out for 20 to 60 seconds (preferably 30 seconds), and crude refining is carried out at about 20% to 30%, and then the fabrics of this adjustment are superimposed while immersing high heat flux in a superimposed state. By completing the refining by transferring for 3 to 10 minutes (preferably 5 minutes), a high-quality refining fabric can be obtained that does not cause wrinkles. In other words, the means for achieving the refining effect of the cotton fabric is that the more moisture ratio to the fabric during the refining process, the faster the reaction and the faster the refining process, and the more the water ratio, the shorter the treatment time, thereby producing a uniform refining cloth. can do. The refining of noodles is to degrease while insoluble fats are solubilized with alkali, so that when the moisture is too much, the saponification process proceeds as well as washing, allowing rapid refining.

EMBODIMENT OF THE INVENTION Below, this invention is demonstrated in detail based on the Example shown in drawing.

(1) is a fabric to be refined and is a long cotton fabric. This fabric (1) is obtained by performing a fine hair burning treatment of a conventional method, followed by washing of water-soluble substances (raising of contaminants) and swelling of a sizing agent, followed by treatment with an acid solution of sodium chlorite for 5 to 10 seconds. . This fabric (1) is introduced into the wet working reaction chamber (2) of the conventional method, and is conveyed to the expanded tension state by the guide roller group (5). The fabric 1 tension-transferred by this guide roller group 5 is refined containing 20-30 g / l of caustic soda, 5-10 g / l of oxidizing agent, and 3-5 g / l of surfactant. It is intermittently immersed in the liquid tank 4 filled with the liquid 3, and passes through the guide roller group 5 for about 20 to 60 seconds (preferably 30 seconds) while impregnating about 170% of the liquid. Thus, the sizing agent contained in the fabric is decomposed, and about 20 to 30% of the fat content is removed, thereby temporarily refining. The fabric refined in this way is folded in the gap 9 generated between the rotating drum 7 and the semi-circular endless cone bay 8 while being shaken by the folding machine 6. Transferred. The superimposed fabric is immersed in a thermal solution 10 containing 20 to 30 g / l caustic and 2 to 3 g / l surfactant by a rotational operation between the rotating drum 7 and the endless conveyor 8, After passing through the heat solution 10 with a no-tension of about 3 to 10 minutes (preferably 5 minutes), the secondary refining treatment is carried out, whereby the desired refining treatment is obtained, thereby obtaining a refining cloth excellent in absorbency. .

의 면직물을 상법의 잔털태우기 기계에 의해 잔털태우기 처리한후, 이 포백을 90℃열수로 20초동안, 이어서 80℃의 열수로 20초동안 세정한다. 이어서 아염소산소오다 0.1%와 비이온활성제 0.1%를 첨가하고, 또 아세트산으로 PH4로한 90℃의 처리액에서 5초동안 액중처리한후 세정하고, 이어서 가성소오다 2.5%와 과황산암몬 1%와, 비이온 음이온활성제 0.3%를함유한 95℃의 용액으로 30초동안 확포긴장상태에서 액중처리와 기중처리를 반복행하여 1차 정련처리로 한다. 다음에 이 포백을 중첩상태가 되게해서 가성소오다 2%와, 이비온 음이온활성제 0.2%를 함유한 95℃의 열액속을 노우텐션으로 침지이송해서, 적재액중처리에 의해 2차 정련처리를 행하여 목적으로하는 정련처리를 완료하는 것이나, 이 적재액중처리 즉 2차정련처리의 처리시간을 3분, 5분, 10분, 15분, 20분으로 변화시켰을때의 표백(1)의 정련효과를 측정한 결과, 다음표와 같은 성적을 얻을수 있었다.Next, an example of the refining process performed by the present inventors will be described.

After the cotton fabric was treated with a fine hair burning machine using a conventional hair removal machine, the fabric was washed with hot water of 90 ° C. for 20 seconds, followed by hot water of 80 ° C. for 20 seconds. Subsequently, 0.1% sodium hypochlorite and 0.1% nonionic active agent are added, and after washing in water for 5 seconds in a 90 ° C treatment solution of pH 4 with acetic acid, the solution is washed with 2.5% sodium hydroxide and 1% ammonium persulfate. And, in the 95 ° C solution containing 0.3% of the nonionic anionic activator, the submerged treatment and the air treatment were repeated in the expanded tension state for 30 seconds to perform the primary refining treatment. Next, the fabric was placed in an overlapping state, and the secondary liquid was subjected to secondary refining by immersion and transfer of a thermal liquid at 95 ° C. containing 2% of caustic soda and 0.2% of ionic anion activator with no tension. The refining of the bleaching (1) when the desired refining treatment is completed and the processing time of the loading liquid treatment, that is, the secondary refining treatment is changed to 3 minutes, 5 minutes, 10 minutes, 15 minutes, and 20 minutes. As a result of measuring the effect, the following results were obtained.

The sizing of the fabric 1 is starch and polyvinyl alcohol.

According to the above experiment, by performing the second refining treatment for 5 minutes or more by the first refining treatment, effective refining can be expected.

As described above, in the present invention, the cotton fabric to be refined is repeatedly immersed in a refining tension state mainly in a caustic soda solution in a expanded tension state, and the first refining is performed. Since it is a method and apparatus for refining cotton fabrics, this enables effective refining treatment in a short time of about 5 minutes to about 20 minutes, thereby saving heat energy and chemicals, and refining treatment with excellent economic efficiency. It becomes possible. According to the present invention, for example, in the conventional refining method, even in a twisted yarn or a high-density fabric, where wrinkles tend to occur, a good refining fabric can be obtained by uniform treatment without generating wrinkles.

Claims (2)

The cotton fabric to be refined is repeatedly immersed in a refining tension state mainly in a caustic soda mainly in caustic soda, and then subjected to the first refining. Continuous refining method. The cloth is continuously passed through and transferred by the guide roller group to guide the transfer of the cotton fabric introduced into the processing chamber from the fabric inlet in the treatment chamber toward the fabric outlet, and the guide roller group. Primary refining means consisting of a refining heat bath for intermittently immersing the fabric into the refining heat solution, and a high-temperature liquid bath and a cloth conveying state in which the cotton fabric that has passed through the first refining means is folded and the high heat fluid flows through no-tension. A continuous refining apparatus for a cotton fabric, characterized in that a secondary refining means composed of a mechanism is provided.

Images