1. A shaping processing method for color light correction of polyester spandex knitted fabric is characterized by comprising the following steps:

1) color testing of the sample

A. Taking a plurality of polyester spandex fabrics to be subjected to color modification with the area of 20CM by 20CM, and comparing the small sample fabrics to be subjected to color modification with a standard sample;

B. preparing a color correction liquid according to the lacking color light;

C. soaking a piece of sample fabric to be color-corrected in the prepared color correction liquid solution;

D. after the hand sample fabric to be color-repaired is rolled by a compression roller, carrying out hand sample shaping on a hand sample shaping machine;

E. comparing the small sample fabric after color correction with the standard sample, and adjusting the color correction liquid again if the color difference exists;

F. repeating the step C-E until the color of the small sample fabric to be subjected to color correction after shaping is consistent with that of the standard sample;

2) trial production of young pilgrimage

A. Preparing a primary color correction solution according to the concentration of the color correction solution determined in the step 1;

B. putting the prepared primary color-correcting solution into a paddle tank;

C. setting a process of the setting machine; simultaneously dyeing and setting the cloth;

D. after the first piece of cloth is produced, performing sample shearing and color matching, and finely adjusting the concentration of the preliminary color correction solution according to the color of the head piece;

3) and the whole batch production

A. Comparing the color of the head piece with the standard sample, and reasonably adjusting the concentration of the primary color-correcting solution to form the concentration of the standard color-correcting solution;

B. and (5) dyeing and shaping the whole cylinder of cloth according to the process of the head piece by adopting standard color correction liquid.

2. The setting processing method for color light correction of polyester spandex knitted fabric according to claim 1, characterized in that parameter processes of the setting machine in the step 1) and the step 2) are as follows: the pressure of the press roll is 20-40N, the temperature is 130 ℃, and the time is 60S.

3. The setting processing method for color light correction of polyester spandex knitted fabric according to claim 1 or 2, characterized in that the dye concentration of the standard color correction liquid is less than 20 g/l.

4. The method for processing and sizing color correction of polyester spandex knitted fabric according to claim 1 or 2, characterized in that the preliminary color correction liquid and the standard color correction liquid need to be filtered before being added into the paddle tank.

5. The method for processing and processing color and light correction of polyester spandex knitted fabric according to claim 1 or 2, characterized in that the setting machine adopted in the steps 1 and 2 is a gate Fuji setting machine.

Background

The dyeing and coloring performance of the terylene is poor because the terylene fiber and filament fabric have strong hydrophobicity, and the conventional dye and the conventional dyeing method can hardly dye and color the terylene fiber and filament fabric, but can dye the terylene fiber and filament fabric only by carrying out high-temperature and high-pressure treatment on the disperse dye. Even if the polyester dyeing is carried out at high temperature and high pressure, the primary qualified rate of the average color light is only about 90%, and when the color light of the polyester dyeing is different, the polyester dyeing needs to be repaired again, namely the high-temperature and high-pressure dyeing is carried out again, so that the energy consumption is high, and the cost is high. The repeated high-temperature and high-pressure environment can affect the product quality, and particularly, the terylene spandex variety is very easy to cause light scrapping of the gram weight of the cloth cover, thereby causing great loss.

Disclosure of Invention

The invention aims to provide a shaping processing method for correcting color light of polyester spandex knitted fabric aiming at the problems in the prior art, and the technical problem to be solved by the invention is how to finish shaping dyeing on cloth needing to be re-dyed in a cylinder by utilizing a shaping environment at one time.

The purpose of the invention can be realized by the following technical scheme: a shaping processing method for color light correction of polyester spandex knitted fabric is characterized by comprising the following steps:

1. color testing of hand sample

A. Taking a plurality of polyester spandex fabrics to be subjected to color modification with the area of 20CM by 20CM, and comparing the small sample fabrics to be subjected to color modification with a standard sample;

B. preparing a color correction liquid according to the lacking color light;

C. soaking a piece of sample fabric to be color-corrected in the prepared color correction liquid solution;

D. after the hand sample fabric to be color-repaired is rolled by a compression roller, carrying out hand sample shaping on a hand sample shaping machine;

E. comparing the small sample fabric after color correction with the standard sample, and adjusting the color correction liquid again if the color difference exists;

F. repeating the step C-E until the color of the small sample fabric to be subjected to color correction after shaping is consistent with that of the standard sample;

the preparation process of the color correction liquid comprises the following steps: if the fabric to be repaired is yellow, preparing 1g/L to 20g/L of disperse yellow solution according to the amount of the yellow solution.

The principle is as follows: the method utilizes the characteristics that the disperse dye needs to be used for coloring the polyester fabric under the condition of high temperature (110-135 ℃), and the grey cloth setting also needs to be carried out under the condition of high temperature (110-200 ℃). The color correction method combines the color correction method and the color correction device, and color correction is directly performed on sizing when color deviation occurs, so that color restoration is performed under the condition that the original process is not increased.

2. Trial production of head

A. Preparing a primary color correction solution according to the concentration of the color correction solution determined in the step 1;

B. putting the prepared primary color-correcting solution into a paddle tank;

C. setting a process of the setting machine; simultaneously dyeing and setting the cloth;

D. after the first piece of cloth is produced, performing sample shearing and color matching, and finely adjusting the concentration of the preliminary color correction solution according to the color of the head piece;

3. production in bulk

A. Comparing the color of the head piece with the standard sample, and reasonably adjusting the concentration of the primary color-correcting solution to form the concentration of the standard color-correcting solution;

B. and (5) dyeing and shaping the whole cylinder of cloth according to the process of the head piece by adopting standard color correction liquid.

Further, the parameter processes of the setting machine in the step 1 and the step 2 are both as follows: the pressure of the press roll is 20-40N, the temperature is 130 ℃, and the time is 60S.

Further, the dye concentration of the standard color correction liquid is less than 20 g/l.

Too high a concentration can affect the fastness of the final product.

The primary color correction liquid and the standard color correction liquid need to be filtered before being added into the paddle tank.

The macromolecular dye which is not filtered is easy to cause color spots in production.

Further, the setting machine adopted in the step 1 and the step 2 is a door Fuji setting machine.

The method can be used for polyester spandex fabrics and polyester fabrics.

Compared with the prior art, the invention has the following advantages:

1. the method has the advantages that the characteristics that high temperature is required for dyeing the terylene by using the disperse dye and high-temperature shaping is required after dyeing of the terylene are utilized, the gray fabric with poor partial chromatic light is directly repaired in shaping, so that the step of dyeing and repairing is reduced, and a large amount of energy and cost are saved.

2. Compared with the high-temperature color correction in a dye vat, the method for color correction reduces the risk of damage to fibers caused by the rising temperature.

3. For the cloth with chromatic aberration, the frequency of feeding the cloth into a cylinder and the frequency of high-temperature and high-pressure treatment are reduced, and the product quality is improved.

Detailed Description

The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.

1. Color testing of hand sample

A. Taking a plurality of polyester spandex fabrics to be subjected to color modification with the area of 20CM by 20CM, and comparing the small sample fabrics to be subjected to color modification with a standard sample;

B. preparing a color correction liquid according to the lacking color light;

C. soaking a piece of sample fabric to be color-corrected in the prepared color correction liquid solution;

D. after the hand sample fabric to be color-repaired is rolled by a compression roller, carrying out hand sample shaping on a hand sample shaping machine;

E. comparing the small sample fabric after color correction with the standard sample, and adjusting the color correction liquid again if the color difference exists;

F. repeating the step C-E until the color of the small sample fabric to be subjected to color correction after shaping is consistent with that of the standard sample;

the preparation process of the color correction liquid comprises the following steps: if the fabric to be repaired is yellow, preparing 1g/L to 20g/L of disperse yellow solution according to the amount of the yellow solution.

The principle is as follows: the method utilizes the characteristics that the disperse dye needs to be used for coloring the polyester fabric under the condition of high temperature (110-135 ℃), and the grey cloth setting also needs to be carried out under the condition of high temperature (110-200 ℃). The color correction method combines the color correction method and the color correction device, and color correction is directly performed on sizing when color deviation occurs, so that color restoration is performed under the condition that the original process is not increased.

2. Trial production of head

A. Preparing a primary color correction solution according to the concentration of the color correction solution determined in the step 1;

B. putting the prepared primary color-correcting solution into a paddle tank;

C. setting a process of the setting machine; simultaneously dyeing and setting the cloth;

D. after the first piece of cloth is produced, performing sample shearing and color matching, and finely adjusting the concentration of the preliminary color correction solution according to the color of the head piece;

3. production in bulk

A. Comparing the color of the head piece with the standard sample, and reasonably adjusting the concentration of the primary color-correcting solution to form the concentration of the standard color-correcting solution;

B. and (5) dyeing and shaping the whole cylinder of cloth according to the process of the head piece by adopting standard color correction liquid.

The parameter processes of the setting machine in the step 1 and the step 2 are as follows: the press roll pressure is 20-40N, the temperature is 130 ℃, and the time is 60S (corresponding to the vehicle speed of 30M/min).

The dye concentration of the standard color correction liquid is less than 20 g/l.

The blended knitted fabric treated by the processing method is subjected to color fastness test, and the results are as follows:

the color fastness to washing is tested according to GB/T3921-2008, the color fastness to rubbing is tested according to GB/T3920-2008, and the color fastness to water is tested according to GB/T5713-2013 ' color fastness to water ' of textile color fastness test '.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.