Preparation method of fabric dyeing sample

Abstract

The invention provides a preparation method of a fabric dyeing sample, which comprises the following steps: step 10) obtaining a color matching scheme according to color requirements; (20) preparing dye liquor according to the color matching scheme to obtain proofing dye liquor; (30) conveying the fabric to a printing and dyeing station, and dyeing the fabric by adopting the proofing dye liquor to obtain a dyed fabric; 40) conveying the dyed fabric to a post-treatment station, and performing post-treatment on the dyed fabric to obtain a fabric dyeing sample; (50) detecting whether the fabric dyeing sample meets the color requirement or not, if the fabric dyeing sample does not meet the color requirement, adjusting the color matching scheme to obtain a new color matching scheme, and returning to the step (20) until the fabric dyeing sample meeting the color requirement is obtained. According to the preparation method of the fabric dyeing sample, the dyeing sample meeting the color requirement of a user is automatically manufactured, the efficiency is high, and the accuracy rate is high.

Description

Technical Field

[0001] The invention belongs to the technical field of textile technology, and particularly relates to a method for preparing a fabric dyeing sample. Background Art

[0002] Before batch printing and dyeing, it is necessary to make dyeing samples according to customer needs. Only when the dyeing samples meet customer needs can batch printing and dyeing be started, so as to prevent the color of the finished batch printing and dyeing products from not matching the color specified by the customer and exceeding the allowable color difference standard. At present, when making dyeing samples, workers with rich color matching experience design the color matching scheme in the proofing room, and then carry out the processes such as mixing dye and dyeing to obtain the dyeing samples. However, the current method relies heavily on the experience of the workers, and the color matching ability of the workers is very high, and the accuracy of the samples cannot be objectively guaranteed. Moreover, in order to save costs, the equipment structures of the processes such as mixing dye, printing and dyeing, and color fixing in the proofing room are relatively simple, and the processes such as mixing dye and dyeing require manual operation, and the production efficiency is not high. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a method for preparing fabric dyeing samples, which can automatically produce small dyeing samples that meet the color requirements of users with high efficiency and high accuracy.

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a method for preparing a fabric dyeing sample, comprising the following steps:

[0005] Step 10, obtaining a color scheme according to color requirements;

[0006] Step 20, preparing dye solution according to the color matching scheme to obtain a proofing dye solution;

[0007] Step 30, identifying a cutting area of ​​a preset shape and a preset area on the raw fabric, and automatically cutting the area to obtain a fabric to be dyed; the fabric to be dyed is a square, and the side length of the fabric to be dyed is greater than or equal to 5 cm and less than or equal to 10 cm;

[0008] Step 40, transporting the fabric to be dyed to a printing and dyeing station, dyeing the fabric to be dyed with a sample dye solution to obtain a dyed fabric;

[0009] Step 50, transporting the dyed fabric to a post-processing station, performing post-processing on the dyed fabric to obtain a fabric dyeing sample;

[0010] Step 60, detecting whether the fabric dyeing sample meets the color requirement, if the fabric dyeing sample does not meet the color requirement, adjusting the color matching scheme to obtain a new color matching scheme, and returning to step 20 until a fabric dyeing sample that meets the color requirement is obtained.

[0011] As a further improvement of the embodiment of the present invention, the step 10 specifically includes:

[0012] The standard fabric is transported to the testing station, and the color of the standard fabric is measured to obtain a color matching scheme.

[0013] As a further improvement of the embodiment of the present invention, the color scheme includes the mass percentages of red, yellow, blue and deionized water;

[0014] Alternatively, the color matching scheme includes the mass percentages of red, yellow, blue, deionized water and dyeing auxiliary substances, and the dyeing auxiliary substances include at least one of a penetrant, a surfactant, a dyeing accelerator and a leveling agent.

[0015] As a further improvement of the embodiment of the present invention, the step 20 specifically includes:

[0016] According to the mass ratio of red, yellow, blue and deionized water in the color matching scheme, red dye, yellow dye, blue dye and deionized water are added into a mixing container, mixed by magnetic stirring and the temperature is controlled to obtain a proofing dye solution;

[0017] Alternatively, according to the mass ratio of red, yellow, blue, deionized water and dyeing auxiliary substance in the color matching scheme, red dye, yellow dye, blue dye, deionized water and dyeing auxiliary substance are added into a mixing container, mixed by magnetic stirring and the temperature is controlled to obtain a proofing dye solution;

[0018] As a further improvement of the embodiment of the present invention, the step 40 specifically includes:

[0019] Step 401, conveying the fabric to be dyed to the printing and dyeing station, at which time the fabric to be dyed is horizontally arranged and in a flat state;

[0020] Step 402, vertically spraying the sample dyeing liquid onto the fabric to be dyed from above the fabric to be dyed, dyeing the fabric to be dyed, and obtaining the dyed fabric.

[0021] As a further improvement of the embodiment of the present invention, step 402 specifically includes: firstly spraying a surfactant vertically onto the fabric to be dyed from above, then spraying a penetrant vertically onto the fabric to be dyed, then vertically spraying a proofing dye solution onto the fabric to be dyed from above, dyeing the fabric to be dyed, and finally vertically spraying a dye accelerator and a leveling agent onto the fabric to be dyed in sequence to obtain a dyed fabric.

[0022] As a further improvement of an embodiment of the present invention, in step 401, before the fabric to be dyed is transported to the printing and dyeing station, the fabric to be dyed is transported to a pre-treatment station to perform pre-treatment on the fabric to be dyed; the pre-treatment includes one or a combination of multiple processes including desizing, mercerizing, softening, bleaching, calendering and singeing.

[0023] As a further improvement of the embodiment of the present invention, during the pre-treatment process and the process of being transported from the pre-treatment station to the printing and dyeing station, the fabric to be dyed is always kept in a horizontal and flat state.

[0024] As a further improvement of the embodiment of the present invention, in the step 50, the post-treatment includes one process or a combination of multiple processes of color fixing treatment, mercerizing treatment, softening treatment, calendering treatment and singeing treatment.

[0025] As a further improvement of the embodiment of the present invention, during the transportation from the printing and dyeing station to the post-processing station and the post-processing process, the dyed fabric always maintains a horizontal and flat state.

[0026] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0027] The preparation method of the fabric dyeing sample of the embodiment of the present invention first obtains the color matching scheme according to the color requirement; then prepares the dye liquor according to the color matching scheme to obtain the proofing dye liquor; cuts the cloth to obtain the fabric to be dyed; then transports the fabric to be dyed to the printing and dyeing station, dyes the fabric to be dyed with the proofing dye liquor to obtain the dyed fabric; then transports the dyed fabric to the post-processing station, post-processes the dyed fabric to obtain the fabric dyeing sample; finally, detects whether the fabric dyeing sample meets the color requirement. If the fabric dyeing sample does not meet the color requirement, the color matching scheme is adjusted to obtain a new color matching scheme, and the dye liquor is prepared according to the new color matching scheme, dyeing, post-processing and detection are performed, and the cycle is repeated until a small fabric dyeing sample that meets the color requirement is obtained. The method of this embodiment is fully automated, without human participation, improves the production efficiency of small dyeing samples, and reduces labor costs. The method of this embodiment detects after producing a small fabric dyeing sample. If the color requirement is not met, the color matching scheme is adjusted, and the next printing and dyeing is performed, so as to achieve the dyeing effect and improve the accuracy of the small dyeing sample. The method of this embodiment uses a smaller fabric to be dyed to prepare a dyeing sample. Due to the smaller size, rags, scraps, etc. can be used as raw fabrics, and the cutting area is automatically identified according to the preset shape and preset area for cutting, thereby reducing material costs and labor costs. The method of this embodiment obtains a color scheme that meets color requirements by preparing a small-sized dyeing sample of smaller size, so as to facilitate batch printing and dyeing. The corresponding equipment used to prepare the dyeing sample of smaller size can also be reduced in size. The devices of the pre-treatment process, the spray-dyeing process, and the post-treatment process and the transmission devices between the processes can all be integrated into an integrated device, and the integrated device is small in size and can be placed in the proofing room, so that the preparation of the small-sized dyeing sample can be completed in the proofing room, which is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The present invention is a flowchart of a method for preparing a fabric dyeing sample according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is described in detail below with reference to the accompanying drawings.

[0030] The present invention provides a method for preparing a fabric dyeing sample, such as Figure 1 As shown, the following steps are included:

[0031] Step 10: Obtain a color scheme based on color requirements.

[0032] Among them, the color demand is the color displayed by the standard fabric provided to the customer, or the standard color designed independently. The color matching scheme includes the type of primary colors and the mass percentage of each primary color corresponding to the desired color obtained based on the primary colors. In the present embodiment, preferably, the color matching scheme includes red, yellow and blue, and the mass percentage of red, yellow, blue and deionized water corresponding to the color displayed by the standard fabric or the standard color obtained based on the three colors of red, yellow and blue as primary colors. Alternatively, the color matching scheme also includes the mass percentage of auxiliary dyeing substances, and the auxiliary dyeing substances include at least one of penetrants, surfactants, accelerators and leveling agents. For example, the auxiliary dyeing substances can be any one, any two combinations or three combinations of penetrants, surfactants, accelerators or leveling agents. Penetrants and surfactants can increase the activity of the dye liquor and promote dyeing of the dye liquor; accelerators and leveling agents can promote uniform dyeing of the dye liquor. The color matching scheme contains the mass percentage of the above-mentioned auxiliary dyeing substances. When preparing the dye liquor, the corresponding amount of auxiliary dyeing substances can be added according to the color matching scheme to prepare the proofing dye liquor, which can directly dye the fabric and improve the dyeing effect.

[0033] Step 20, preparing dye solution according to the color matching scheme to obtain proofing dye solution.

[0034] Specifically, according to the color matching scheme, each primary color is automatically added to the mixing container according to the mass percentage of each primary color, deionized water is added according to the mass percentage of deionized water, magnetic stirring is performed, and heating is performed as required to prepare the proofing dye solution.

[0035] Alternatively, according to the mass ratio of red, yellow, blue, deionized water and dyeing auxiliary substances in the color matching scheme, red dye, yellow dye, blue dye, deionized water and dyeing auxiliary substances are added into a mixing container, mixed by magnetic stirring and the temperature is controlled to obtain a proofing dye solution.

[0036] Step 30, a cutting area of ​​a preset shape and a preset area is identified on the raw fabric, and the fabric to be dyed is automatically cut to obtain the fabric to be dyed. The obtained fabric to be dyed is a square, and the side length of the fabric to be dyed is greater than or equal to 5 cm and less than or equal to 10 mm.

[0037] Step 40, conveying the fabric to be dyed to the printing and dyeing station, dyeing the fabric to be dyed with a sample dye solution to obtain a dyed fabric.

[0038] Specifically, the fabric to be dyed is transported to the printing and dyeing station, the preparation container is connected to the liquid sprayer, the liquid sprayer absorbs the sample dyeing liquid in the preparation container, and sprays it onto the fabric to be dyed, dyeing the fabric to be dyed to obtain the dyed fabric. The fabric is small in size and can be dyed without using a dyeing tank. It can be dyed by spraying, which is easy to operate and efficient.

[0039] Step 50, transporting the dyed fabric to a post-processing station, performing post-processing on the dyed fabric to obtain a fabric dyeing sample.

[0040] Preferably, the post-treatment includes one or a combination of multiple steps of a color fixing treatment, a mercerizing treatment, a softening treatment, a calendering treatment and a singeing treatment.

[0041] After dyeing, the dyed fabric can be automatically transported to the process that needs to be processed according to actual needs, and after the previous process is completed, the fabric will be automatically transported to the next process, thereby improving the degree of automation and the production efficiency of the entire dyeing sample.

[0042] Step 60, detecting whether the fabric dyeing sample meets the color requirement. If the fabric dyeing sample does not meet the color requirement, adjusting the color matching scheme to obtain a new color matching scheme, and returning to step 20) until a fabric dyeing sample that meets the color requirement is obtained.

[0043] Specifically, if the color requirement is the color displayed by the standard fabric provided by the customer, the color of the fabric dyeing sample is compared with the standard fabric. If the color difference between the fabric dyeing sample and the standard fabric does not exceed the allowable color difference standard, the fabric dyeing sample meets the color requirement; if the color difference between the fabric dyeing sample and the standard fabric exceeds the allowable color difference standard, the fabric dyeing sample does not meet the color requirement, and the color matching scheme needs to be adjusted according to the color difference to obtain a new color matching scheme, and then dyes are prepared according to the new color matching scheme, and the fabric is dyed with a new dye solution, and then compared with the standard fabric after post-processing. Repeat this cycle until a fabric dyeing sample that meets the color requirement is obtained.

[0044] If the color requirement is a self-designed standard color, the color of the fabric dyeing sample is compared with the standard color. If the color difference between the color of the fabric dyeing sample and the standard color does not exceed the allowable color difference standard, the fabric dyeing sample meets the color requirement; if the color difference between the color of the fabric dyeing sample and the standard color exceeds the allowable color difference standard, the fabric dyeing sample does not meet the color requirement, and the color matching scheme needs to be adjusted according to the color difference to obtain a new color matching scheme, and then dyes are prepared according to the new color matching scheme, and the fabric is dyed with a new dye solution, and then compared with the standard color after post-processing. Repeat this cycle until a fabric dyeing sample that meets the color requirement is obtained.

[0045] The above embodiment method first obtains a color scheme according to the color requirements; then prepares a dye liquor according to the color scheme to obtain a proofing dye liquor; then the fabric is transported to the printing and dyeing station, and the fabric is dyed with the proofing dye liquor to obtain a dyed fabric; then the dyed fabric is transported to the post-processing station, and the dyed fabric is post-processed to obtain a fabric dyeing sample; finally, the fabric dyeing sample is detected to see if it meets the color requirements. If the fabric dyeing sample does not meet the color requirements, the color scheme is adjusted to obtain a new color scheme, and the dye liquor is prepared according to the new color scheme, dyeing, post-processing and detection are performed, and the cycle is repeated until a fabric dyeing sample that meets the color requirements is obtained. The method of this embodiment is fully automated, without human participation, and improves the production efficiency of small dyeing samples and reduces labor costs. The method of this embodiment detects after producing a small fabric dyeing sample. If the color requirements are not met, the color scheme is adjusted and the next printing and dyeing is performed, thereby achieving a dyeing effect and improving the accuracy of the dyeing sample. The method of this embodiment obtains a color scheme that meets color requirements by preparing small-sized dyeing samples of smaller sizes, so as to facilitate batch printing and dyeing. Compared with preparing large-scale dyeing samples, the preparation process is simple and easy to operate, and the preparation efficiency is high.

[0046] Preferably, step 10 specifically includes:

[0047] The standard fabric is transported to the testing station, and the color of the standard fabric is measured to obtain a color matching scheme.

[0048] At the inspection station, the color of the standard fabric is measured by computer to obtain a color scheme. Specifically, the standard fabric is photographed to obtain a standard fabric image; the color of the standard fabric image is compared with the color card in the color database, and the image analysis and processing method is used to obtain a color card with the same or similar color as the standard fabric image; the primary color ratio corresponding to the similar color card is used as the color scheme.

[0049] Further, in step 60, a computer is used to detect whether the fabric dyeing sample meets the color requirements. Specifically, the fabric dyeing sample is photographed to obtain a sample image; the sample image obtained in step 10 is compared with the standard fabric image, and the color difference between the sample image and the standard fabric image is obtained by using an image analysis and processing method. If the color difference does not exceed the allowable color difference standard, the fabric dyeing sample meets the color requirements; if the color difference exceeds the allowable color difference standard, the fabric dyeing sample meets the color requirements.

[0050] This preferred embodiment can automatically measure the color of the standard fabric to obtain a color scheme, and can also automatically detect whether the fabric dyeing sample meets the color requirements. If it does not meet the color requirements, the color scheme is automatically adjusted to carry out the next round of dyeing, so that the entire process from obtaining the color scheme to obtaining the fabric dyeing sample that finally meets the color requirements can be automated, without human intervention, greatly improving production efficiency. Obtaining the color scheme and detecting the fabric dyeing sample do not need to rely on manual experience, and no subjective deviation will occur, greatly improving the sample accuracy.

[0051] Preferably, step 40 specifically includes:

[0052] Step 401, conveying the fabric to be dyed to the printing and dyeing station, at which time the fabric to be dyed is arranged horizontally and in a flat state.

[0053] Step 402, vertically spraying the sample dyeing liquid onto the fabric to be dyed from above the fabric to be dyed, dyeing the fabric to be dyed, and obtaining the dyed fabric.

[0054] In this embodiment, during dyeing, the smaller fabric to be dyed is in a horizontal and flat state, and the proofing dye liquid is sprayed vertically on the fabric from above the fabric to be dyed. Compared with the fabric being in a vertical state, spraying from the side of the fabric allows all the sprayed dye liquid to fall on the fabric and will not flow from the fabric to the ground, thereby not causing waste of dye liquid. At the same time, wrinkles are prevented from forming on the fabric, so that dyeing is uniform and the dyeing effect is improved.

[0055] In order to reduce the difficulty of obtaining the color scheme and the difficulty of adjusting the subsequent color scheme, and to improve the accuracy of preparing the proofing dye solution, the preferred color scheme of this embodiment only includes the mass percentages of red, yellow, blue and deionized water, and does not include the mass percentages of dyeing aids.

[0056] However, in order to promote the penetration, dyeing and uniformity of the dye solution and improve the printing and dyeing effect, step 402 in this embodiment specifically includes: first, spraying a penetrant vertically onto the fabric to be dyed from above, then spraying a surfactant vertically onto the fabric to be dyed, then spraying the proofing dye solution vertically onto the fabric to be dyed from above, dyeing the fabric to be dyed, and finally spraying a dye accelerator and a leveling agent vertically onto the fabric to be dyed in turn to obtain a dyed fabric.

[0057] In this embodiment, when spraying the sample dye liquid for dyeing, the surfactant is first sprayed to reduce the surface activity of the fabric, which is conducive to the interaction between the subsequent reagents and the fabric; then the penetrant is sprayed to facilitate the penetration of the sample dye liquid and other substances; then the sample dye liquid is sprayed to increase the activity of the dye liquid on the fabric and promote the dyeing of the dye liquid. After spraying the sample dye liquid, the dye accelerator and the leveling agent are sprayed in sequence, so that the dye liquid is evenly dyed, and finally the dyed fabric is obtained, which improves the dyeing effect as a whole.

[0058] Preferably, in step 401, before conveying the fabric to be dyed to the printing and dyeing station, the fabric to be dyed is conveyed to a pre-treatment station to perform pre-treatment on the fabric to be dyed.

[0059] Preferably, the pre-treatment comprises one or a combination of multiple steps of desizing, mercerizing, softening, bleaching, calendering and singeing.

[0060] In this embodiment, before dyeing, the fabric to be dyed can be automatically transported to the process that needs to be processed according to actual needs, and after the previous process is completed, the fabric to be dyed is automatically transported to the next process, thereby improving the degree of automation and the production efficiency of the entire dyeing sample.

[0061] Preferably, the fabric to be dyed is kept horizontal and flat during the pre-treatment process and during the transportation from the pre-treatment station to the printing and dyeing station. The dyed fabric is kept horizontal and flat during the transportation from the printing and dyeing station to the post-treatment station and during the post-treatment process.

[0062] In this embodiment, during all the pre-treatment processes of the fabric to be dyed, the transportation process between the pre-treatment processes, the transportation process from the last pre-treatment process to the dyeing station, the dyeing process, the transportation process from the dyeing station to the first post-treatment station, the transportation process between the post-treatment processes, and all the post-treatment processes, the fabric to be dyed or the dyed fabric is always kept in a horizontal and flat state, which is convenient for automated transmission, and is also conducive to the full execution of each process, thereby improving the production efficiency and effect of the dyeing sample.

[0063] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A method for preparing a fabric dyeing sample, characterized in that: The following steps are involved: Step 10, obtaining a color scheme according to color requirements; Step 20, preparing dye solution according to the color matching scheme to obtain a proofing dye solution; Step 30, identifying a cutting area of ​​a preset shape and a preset area on the raw fabric, and automatically cutting the area to obtain a fabric to be dyed; the fabric to be dyed is a square, and the side length of the fabric to be dyed is greater than or equal to 5 cm and less than or equal to 10 cm; Step 40, transporting the fabric to be dyed to a printing and dyeing station, dyeing the fabric to be dyed with a sample dye solution to obtain a dyed fabric; Step 50, transporting the dyed fabric to a post-processing station, performing post-processing on the dyed fabric to obtain a fabric dyeing sample; Step 60, detecting whether the fabric dyeing sample meets the color requirement, if the fabric dyeing sample does not meet the color requirement, adjusting the color matching scheme to obtain a new color matching scheme, and returning to step 20 until a fabric dyeing sample that meets the color requirement is obtained.

2. The preparation method according to claim 1, characterized in that: The step 10 specifically includes: The standard fabric is transported to the testing station, and the color of the standard fabric is measured to obtain a color matching scheme.

3. The preparation method according to claim 1, characterized in that: The color scheme includes the mass percentages of red, yellow, blue and deionized water; Alternatively, the color matching scheme includes the mass percentages of red, yellow, blue, deionized water and dyeing auxiliary substances, and the dyeing auxiliary substances include at least one of a penetrant, a surfactant, a dyeing accelerator and a leveling agent.

4. The preparation method according to claim 3, characterized in that: The step 20 specifically includes: According to the mass ratio of red, yellow, blue and deionized water in the color matching scheme, red dye, yellow dye, blue dye and deionized water are added into a mixing container, mixed by magnetic stirring and the temperature is controlled to obtain a proofing dye solution; Alternatively, according to the mass ratio of red, yellow, blue, deionized water and dyeing auxiliary substances in the color matching scheme, red dye, yellow dye, blue dye, deionized water and dyeing auxiliary substances are added into a mixing container, mixed by magnetic stirring and the temperature is controlled to obtain a proofing dye solution.

5. The preparation method according to claim 1, characterized in that: The step 40 specifically includes: Step 401, conveying the fabric to be dyed to the printing and dyeing station, at which time the fabric to be dyed is horizontally arranged and in a flat state; Step 402, vertically spraying the sample dyeing liquid onto the fabric to be dyed from above the fabric to be dyed, dyeing the fabric to be dyed, and obtaining the dyed fabric.

6. The preparation method according to claim 5, characterized in that: The step 402 specifically includes: firstly spraying a surfactant vertically onto the fabric to be dyed from above, then spraying a penetrant vertically onto the fabric to be dyed, then spraying a sample dye solution vertically onto the fabric to be dyed from above, dyeing the fabric to be dyed, and finally spraying a dye accelerator and a leveling agent vertically onto the fabric to be dyed in sequence to obtain a dyed fabric.

7. The preparation method according to claim 5, characterized in that: In step 401, before conveying the fabric to be dyed to the printing and dyeing station, the fabric to be dyed is conveyed to a pre-treatment station for pre-treatment of the fabric to be dyed; the pre-treatment includes one or a combination of multiple processes of desizing, mercerizing, softening, bleaching, calendering and singeing.

8. The preparation method according to claim 6, characterized in that: During the pre-treatment process and the transportation from the pre-treatment station to the printing and dyeing station, the fabric to be dyed always remains horizontal and flat.

9. The preparation method according to claim 1, characterized in that: In step 50, the post-treatment includes one process or a combination of multiple processes among color fixing treatment, mercerizing treatment, softening treatment, calendering treatment and singeing treatment.

10. The preparation method according to claim 9, characterized in that: During the transportation from the printing and dyeing station to the post-processing station and during the post-processing process, the dyed fabric always remains horizontal and flat.

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