阅读说明：本技术 一种活性染料染色后平幅节能水洗方法 (Open-width energy-saving washing method after dyeing with reactive dye ) 是由 袁钱 于 2020-06-04 设计创作，主要内容包括：本发明涉及染料染色水洗方法,针对染缸水洗工艺流程长、能耗高、助剂改良颜色不稳定的问题,本发明提供一种活性染料染色后平幅节能水洗方法,包括如下步骤：在绳状染色机里进行活性染料染色后,排脚水,并酸中和出缸；坯布经开幅机开幅再到10节水槽的平幅水洗机中进行平幅连续式水洗,其中1-4槽为热洗槽,第5槽为皂洗槽,加入雅可赛SW活性皂洗剂,6-10槽为洗净槽,平幅水洗机用水方式：第10槽进水,然后从第10槽溢流到第9槽、再从第9槽溢流到第8槽,依此类推呈阶梯式回用,平幅水洗机的运行车速控制在20-30m/min；柔软固色脱水；烘干定型。本发明省略缸内水洗皂洗时间,染缸加工流程短,成品色牢度重现性好。(The invention relates to a dye dyeing washing method, and provides an open-width energy-saving washing method after dyeing by reactive dye, aiming at the problems of long process flow, high energy consumption and unstable color improvement of an auxiliary agent in a dye vat washing process, which comprises the following steps: after dyeing with reactive dye in a rope dyeing machine, draining water from the foot, neutralizing with acid and discharging from the vat; the grey cloth is subjected to open width by an open width machine and then is subjected to open width continuous washing in an open width washing machine with 10 water-saving grooves, wherein a 1-4 groove is a hot washing groove, a 5 th groove is a soaping groove, Jacobset SW active soaping agent is added, a 6-10 groove is a washing groove, and the open width washing machine adopts a water using mode: feeding water into the 10 th groove, overflowing from the 10 th groove to the 9 th groove, then overflowing from the 9 th groove to the 8 th groove, and the like for recycling in a stepped manner, wherein the running speed of the open width water washing machine is controlled to be 20-30 m/min; softening, fixing color and dehydrating; and (5) drying and shaping. The method omits the washing and soaping time in the dye vat, the dye vat processing flow is short, and the color fastness reproducibility of the finished product is good.)

1. An open-width energy-saving washing method after dyeing with reactive dye is characterized by comprising the following steps:

(1) after dyeing with reactive dye in a rope dyeing machine, draining water for 1-2 times, neutralizing with acid and taking out of a vat;

(2) the grey cloth is subjected to open width by an open width machine and then is subjected to open width continuous washing in an open width washing machine with 10 water-saving grooves, wherein a 1-4 groove is a hot washing groove, a 5 th groove is a soaping groove, Jacobset SW active soaping agent is added, a 6-10 groove is a washing groove, and the open width washing machine adopts a water using mode: feeding water into the 10 th groove, overflowing from the 10 th groove to the 9 th groove, then overflowing from the 9 th groove to the 8 th groove, and the like for recycling in a stepped manner, wherein the running speed of the open width water washing machine is controlled to be 20-30 m/min;

(3) softening, fixing color and dehydrating;

(4) and (5) drying and shaping.

2. The open-width energy-saving water washing method after dyeing by the reactive dye according to claim 1, characterized in that in the step (1), the light and medium color is discharged with foot water for one time, then the water is directly added with glacial acetic acid for neutralization, and then the water is directly discharged out of a vat; running for 5 minutes after draining the foot water in the dark color, draining the foot water once again, directly adding 1-1.5% of glacial acetic acid after water is drained, directly taking out the water from the vat after neutralization, and controlling the pH value to be 7-8.

3. The open-width energy-saving water washing method after dyeing by using the reactive dye as claimed in claim 1, wherein the set temperature of a water tank of 1-4 tanks is as follows: 40 ℃ in the 1 st tank, 40 ℃ in the 2 nd tank, 40 ℃ in the 3 rd tank and 70 ℃ in the 4 th tank.

4. The energy-saving open-width water washing method after dyeing with the reactive dye according to claim 1, wherein the water tank of the 5 th tank is set at 90 ℃ and the soaping agent is added into the 5 th tank in an intermittent manner, wherein the soaping agent is used in an amount of 2%.

5. The open-width energy-saving washing method after dyeing by using the reactive dye as claimed in claim 1, wherein 6-10 tanks are washing tanks, and the water tanks have the following set temperatures: the 6 th groove is washed by cold water at 60-80 ℃, the 7 th groove is washed by cold water at 40 ℃, the 8 th groove is washed by cold water at 40 ℃, and the 9 th groove and the 10 th groove are washed by cold water.

6. The method for energy-saving open width washing after dyeing by the reactive dye according to claim 1, wherein the operating speed of the open width washing machine is as follows: light color 30m/min, medium color 25m/min, dark color 20 m/min.

7. The energy-saving open-width water washing method after dyeing with reactive dyes according to any one of claims 1 to 6, characterized in that the rotation speed of the second water tank roller is 5 to 6% slower than that of the first water tank roller, and the rotation speeds of the other rollers are decreased in turn in proportion to that of the previous water tank roller.

Technical Field

The invention relates to a dye dyeing water washing method, in particular to an open-width energy-saving water washing method after dyeing by reactive dyes.

Background

The grey cloth containing cotton fiber is dyed, and the cotton fiber is first bleached and then dyed with reactive dye. At present, after dyeing, reactive dyes at home and abroad are washed and soaped in a dye vat, so that the dye vat processing consumes long time (about 8 hours), the production efficiency is low, the dye vat belongs to intermittent washing during washing, particularly, deep color washing is difficult to wash, emerald green and bright red and the like are difficult to make due to insufficient washing, the color fastness after soaping is difficult to make, the fastness after soaping is more and more repaired, the fastness is difficult to return, the consumption of water, electricity and steam is large, the sewage discharge is large, and the requirements of environmental protection and energy saving are not met, therefore, more and more new washing and soaping processes are researched and developed, more new soaping processes used in the dyeing and finishing industry at present can select efficient soaping agents, but most of the soaping agents have the effect of decoloring the dye liquor, the washing time is less by using the method for washing and soaping, black and other non-sensitive color systems can be used, but blue light can be easily eliminated if the black and other sensitive color systems are used, the colored light is unstable, the auxiliary agent is excessively depended on, and the water washing link is neglected. The open width washing is a development trend of a washing process after reactive dyeing, reduces the operation time of blank cloth in a dye vat, reduces the friction time of the inner wall of the machine vat, can improve the smoothness of the cloth surface, can realize step-type backflow water, is more thorough and cleaner in washing, and is relatively in line with the development and application of printing and dyeing enterprises.

Disclosure of Invention

The invention aims to solve the problems of long flow, high energy consumption and unstable color improved by an auxiliary agent in the dye vat washing process, provides the open-width energy-saving washing method after dyeing by the reactive dye, breaks through the traditional in-dye-vat washing, omits the in-vat washing and soaping time, has the color fastness consistent with the conventional process, has strong process operability, short dye-vat processing flow and good finished product color fastness reproducibility compared with the conventional process, obtains better cloth cover effect through flow control, meets the requirements of energy conservation and emission reduction, and has obvious effect when applied to the washing process after dyeing by the reactive dye.

In order to achieve the purpose, the invention adopts the following technical scheme: an open-width energy-saving washing method after dyeing with reactive dye comprises the following steps:

(1) after dyeing with reactive dye in a rope dyeing machine, draining water for 1-2 times, neutralizing with acid and taking out of a vat;

(2) the grey cloth is subjected to open width by an open width machine and then is subjected to open width continuous washing in an open width washing machine with 10 water-saving grooves, wherein a 1-4 groove is a hot washing groove, a 5 th groove is a soaping groove, Jacobset SW active soaping agent is added, a 6-10 groove is a washing groove, and the open width washing machine adopts a water using mode: feeding water into the 10 th groove, overflowing from the 10 th groove to the 9 th groove, then overflowing from the 9 th groove to the 8 th groove, and the like for recycling in a stepped manner, wherein the running speed of the open width water washing machine is controlled to be 20-30 m/min;

(3) softening, fixing color and dehydrating;

(4) and (5) drying and shaping.

The invention is suitable for open-width water washing after dyeing of all reactive dyes, and is very critical for selecting an open-width water washing machine and a soaping agent in order to ensure wide applicability. Through multiple sample comparison researches, the 10-water-saving-groove open-width washing machine has the best washing effect, the 10-water-saving-groove drum-type open-width washing machine consumes very little water, and the more water grooves pass through the machine theoretically, the more water grooves are cleaned, and the water consumption is not increased due to stepped recycling. The clean water is fed into the 10 th groove, and the rest 9-1 grooves are continuously recycled in a stepped manner, so that the cleaning effect is superior to that of intermittent cleaning of the dye vat, and the water is saved. For example, the 10 th tank is filled with clean water, the flow rate is 80L/min, the 1 ton of cloth with the gram weight of 400g has the length of 2500 meters, and if the vehicle speed is 25m/min, and the open width water washing time is about 100 minutes, the open width water washing machine uses 100 × 80L to 8000L of water, and the total amount of water changed twice is 8 tons, and 16 tons. The most water-saving washing and soaping time of the airflow dyeing machine needs 2 hours, the time is 20 minutes more, wherein the washing time is 60 minutes, the flow is 400L, the water consumption is 400L/min x 60 min-24000L water, the water is saved by 8 tons, and the energy-saving effect is quite obvious. The open width washing machine saves water and energy, and the cloth surface is flat and does not wrinkle, curl and fuzz because of washing in the open width state, and the cloth surface quality of the finished cloth is obviously improved. The SW Jacobs reactive dye soaping agent is an efficient soaping agent, can quickly remove residual loose colors on the grey cloth, enables the fastness to meet the requirement, and does not affect the color of the grey cloth. The pH value of the grey cloth is controlled between 7 and 8 before the grey cloth is taken out of the vat after dyeing, the Jacksi SW active soaping agent completely meets the requirement of open-width energy-saving washing after the active dye is dyed, and finally the true open-width energy-saving washing method after the active dye is dyed is realized.

Preferably, in the step (1), after the first foot water drainage of the light and medium color, the water is directly added with glacial acetic acid for neutralization and then directly discharged from the vat; running for 5 minutes after draining the foot water in the dark color, draining the foot water once again, directly adding 1-1.5% of glacial acetic acid after water is drained, directly taking out the water from the vat after neutralization, and controlling the pH value to be 7-8.

Preferably, the water tank set temperature of the 1-4 tanks is as follows: 40 ℃ in the 1 st tank, 40 ℃ in the 2 nd tank, 40 ℃ in the 3 rd tank and 70 ℃ in the 4 th tank. The temperature of the rinsing bath is controlled, so that the rinsing and soaping effect meets the requirement, and the color fastness of the finished product is excellent.

Preferably, the water tank of the 5 th tank is set at 90 ℃ and the soaping agent is added to the 5 th tank in an intermittent manner at a dosage of 2%.

Preferably, the 6-10 tanks are washing tanks, and the set temperature of the water tank is: the 6 th groove is washed by cold water at 60-80 ℃, the 7 th groove is washed by cold water at 40 ℃, the 8 th groove is washed by cold water at 40 ℃, and the 9 th groove and the 10 th groove are washed by cold water. The deep color is equal to that of the 6 th tank after soaping at 90 ℃ in the dye vat and then hot washing at 80 ℃ because the cloth cover has much loose color, and the light color and the medium color are only required to be 60 ℃.

Preferably, the running speed of the open width water washing machine is as follows: light color 30m/min, medium color 25m/min, dark color 20 m/min. The darker the color, the slower the vehicle speed, and too fast the color fastness will be reduced.

Preferably, the rotation speed of the second flume drum is 5-6% slower than that of the first flume drum, and the rotation speeds of the remaining drums are sequentially decreased in proportion to that of the previous flume drum. Therefore, the knitted fabric can not be elongated in the straight direction, the qualification rate of the straight shrinkage is ensured, and meanwhile, the grey cloth can not be entangled with a vehicle. The speed of each groove roller is proper, so that the gray fabric is always in low-tension operation.

Therefore, the invention has the following beneficial effects: (1) a 10-water-saving-tank open-width washing machine is adopted, clear water enters a 10 th tank, and the rest 9-1 tanks are continuously recycled in a stepped manner, so that the washing effect is better than that of intermittent washing of a dye vat, and water is saved;

(2) the SW Jacksia reactive dye soaping agent can quickly remove the residual loose color on the grey cloth to ensure that the fastness reaches the requirement, but does not influence the color of the grey cloth and simultaneously meets the requirement of open-width energy-saving washing after the reactive dye is dyed;

(3) the temperature of each water tank is controlled, so that the color fastness is stable after the water tank is washed in an open width;

(4) the rotating speed of each groove roller is set to realize low-tension operation, so that the grey cloth meets the qualified and stable quality requirement;

(5) through the correct control of the above steps, the dyeing and finishing process is stored in the control computer of the dyeing machine, so that the one-time success rate of dyeing can be improved.

Detailed Description

The technical solution of the present invention is further illustrated by the following specific examples.

In the present invention, the raw materials and equipment used are commercially available or commonly used in the art, unless otherwise specified. The methods in the examples are conventional in the art unless otherwise specified.