CN112663354A - Vegetable dye color matching printing process - Google Patents
Vegetable dye color matching printing process Download PDFInfo
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- CN112663354A CN112663354A CN202011560065.3A CN202011560065A CN112663354A CN 112663354 A CN112663354 A CN 112663354A CN 202011560065 A CN202011560065 A CN 202011560065A CN 112663354 A CN112663354 A CN 112663354A
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Abstract
A vegetable dye color matching printing process belongs to the technical field of vegetable dye printing. Due to good environmental compatibility and resource reproducibility of the vegetable dye, a plurality of dye plants have the effects of bacteriostasis, ultraviolet protection and the like. Due to the large structural difference of the vegetable dyes and the poor compatibility of the dyes, great difficulty is caused to color matching, and the application in printing is less. The invention finds the conditions of a proper preparation method of the plant dye color paste, steaming temperature, washing pH value and the like, improves the compatibility among various different plant dyes, obviously improves the color matching and printing effects of the plant dyes, and simultaneously proposes that the rosemary extract is used as an antioxidant, can realize better matching with the plant dyes and improves the economic value of the plant dye printing.
Description
Technical Field
A vegetable dye color matching printing process belongs to the technical field of vegetable dye printing.
Background
Due to good environmental compatibility and resource reproducibility of the vegetable dye, many dye plants have the effects of bacteriostasis, ultraviolet resistance and the like, so that attention is paid to many research and application organizations at home and abroad, the research, development and application of the vegetable dye are greatly advanced, and the fabric dyed by the vegetable dye is more and more popular with people.
The research of plant dyes is mainly focused on the dyeing application of the plant dyes at present, the structure difference of the plant dyes is large, the compatibility among the dyes is poor, great difficulty is caused to color matching, the application on printing is less, the fabric can be fully diffused and permeated into fibers in a dye bath, and the printing is realized by improving the diffusion rate of the dyes through the steaming and baking of post-treatment to help the dyes dye the fibers. Because the combination degree of different plant dyes and fibers is greatly different, the color matching difficulty is higher, the color of the dye obtained after color matching is poor, the plant dye color spectrum is further less, the printing requirement can not be met, and the plant dye printing has no practical economic value at present.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: overcomes the defects of the prior art, provides a plant dye color matching printing process which is suitable for color matching printing of various plant dyes and has good dyeing effect, and expands the printing chromatogram of the plant dyes.
The technical scheme adopted by the invention for solving the technical problems is as follows: a vegetable dye color matching printing process is characterized in that: the method mainly comprises the following steps:
1) pretreating gray fabric; 2) preparing color paste; 3) printing; 4) drying; 5) steaming; 6) washing with water; 7) shaping; the color paste in the step 2) comprises 1-10% of vegetable dye, 5-10% of paste, 0-1.5% of citric acid and 0-2% of antioxidant, wherein the paste is one or a mixture of more of guar gum, sodium alginate and tamarind in any proportion, and the balance is water. The steaming temperature is 130-140 ℃; the pH value of the water washing is 7.5-9.
The steps are particularly suitable for dyeing the pure cotton fabric by matching with the specially mentioned process conditions, the dye uptake of the fabric dye to the pure cotton fiber can be effectively improved, and the pure cotton fiber has good color vividness and color light.
The specific color paste components and the proportion of the proper plant dye printing are determined, so that the color paste components can be used for color matching printing among various plant dyes, the slurry components can be utilized to ensure that different kinds of plant dyes can be fully diffused with each other, the binding force to fibers is improved, the color matching of different plant dyes is realized, and the plant dye chromatogram is expanded; determining a proper steaming temperature, and finding the characteristic that on the basis of the process conditions, if the steaming temperature is too high, the chromatic light is influenced, and if the steaming temperature is too low, the color can not be well developed; and the pH value of the washing is determined to be in a weak alkaline range of 7.5-9, so that the compatibility and fiber adhesiveness among the vegetable dyes are further improved, and the white background anti-reverse adhesion effect is better under the condition.
Preferably, the plant dye comprises one or a mixture of more of lime, sand, chrysanthemum, rose blue, olive green, liquorice, carmine and bamboo carbon black in any proportion. The vegetable dyes are more suitable for color matching printing of fibers under the process conditions, and are particularly suitable for printing and dyeing of pure cotton fabrics.
Preferably, the color paste is orange color paste, and the color paste comprises the following components in parts by weight: 5% of guar gum, 1% of citric acid, 2% of lime, 1% of antioxidant and the balance of water.
Preferably, the color paste is brown color paste, and the color paste comprises the following components in parts by weight: 2% of guar gum, 5% of tamarind seed, 1-1.5% of citric acid, 2% of lime, 4-8% of sand color, 1-2% of antioxidant and the balance of water.
Further preferably, the light brown color paste comprises the following components in parts by weight: 2% of guar gum, 5% of tamarind seed, 1% of citric acid, 2% of lime, 4% of sand color, 1% of antioxidant and the balance of water.
The dark brown color paste comprises the following components in parts by weight: 2% of guar gum, 5% of tamarind seed, 1.5% of citric acid, 2% of lime, 8% of sand color, 2% of antioxidant and the balance of water.
Preferably, the color paste is black color paste, and the color paste comprises the following components in parts by weight: 5% of sodium alginate, 4% of sodium carbonate, 10% of fermented sugar, 5% of bamboo charcoal black and the balance of water.
Preferably, the color paste is yellow color paste, and the color paste comprises the following components in parts by weight: 2% of guar gum, 5% of tamarind seed, 1% of citric acid, 3% of chrysanthemum yellow, 0.3% of soil color, 0.2% of lime, and the balance of water.
Preferably, the color paste is green color paste, and the color paste comprises the following components in parts by weight: 5% of guar gum, 1% of citric acid, 0.8-3% of rose blue, 0.8% of chrysanthemum yellow and the balance of water.
Further preferably, the light green color paste comprises the following components in parts by weight: 5% of guar gum, 1% of citric acid, 0.8% of rose blue, 0.8% of chrysanthemum yellow and the balance of water.
The dark green color paste comprises the following components in parts by weight: 5% of guar gum, 1% of citric acid, 3% of rose blue, 3% of chrysanthemum yellow and the balance of water.
The color paste is pure in color, high in color fastness and stable in dyeing effect.
Preferably, the pH value of the cloth surface is adjusted to 6-7 before printing. The pH range can effectively control the stability of color obtaining and avoid color difference or unstable color light.
Preferably, the water is deionized water. The problem of impure color development can be effectively solved by using deionized water for size mixing.
Preferably, the antioxidant is rosemary extract. The rosemary extract is considered to have mild antioxidant effect by the conventional method and is only suitable for the antioxidation of grease, such as the preservation of meat, the inventor of the application finds that the rosemary extract can be used for the antioxidation in the field of vegetable dyes and can completely meet the antioxidant requirement, and the rosemary extract is also a pure plant extract, so that the pure natural characteristics of the vegetable dyes and pure cotton fabrics are not damaged, and meanwhile, a certain bactericidal effect can be achieved, and the economic value of the color matching printing of the vegetable dyes is effectively improved.
Preferably, the printing is rotary screen printing. The printing effect of the deep color of the rotary screen printing is better than that of the flat screen printing and the printing of the non-patterned tie-back is realized.
Preferably, the drying temperature is 130-150 ℃. Under the drying temperature, the problems that the plant dye is yellowed at high temperature after printing or the low-temperature drying efficiency is low can be avoided. And meanwhile, preferably, the drying process is avoided from stopping, so that the color can be more effectively prevented from yellowing.
Preferably, the setting temperature is 120-140 ℃. Within the temperature range, the color light and the color fastness are better, the color fastness is reduced when the temperature is too low, and the color of the fuel is easy to change when the temperature is too high.
Preferably, the screen mesh number of the rotary screen printing screen is 125-150, the number of the magnetic rods is 8-20 #, and the vehicle speed is 20-40 m/min. The printing condition has better line fineness, coloring rate and penetration effect.
Compared with the prior art, the invention has the beneficial effects that: the proper plant dye color matching printing process is determined, the compatibility among different plant dyes is improved, the fabric can be dyed simultaneously after the different plant dyes are matched, and a good dyeing effect is obtained; meanwhile, the color fastness of the printing is improved by determining the process conditions of washing and steaming, so that the problem of white bottom reverse sticking of the vegetable dye in the printing process and the fading condition in later use are avoided.
Drawings
FIG. 1 shows a cloth sample obtained by color matching printing of the plant dye of example 1.
FIG. 2 shows a cloth sample obtained by color matching printing of the vegetable dye in example 2.
FIG. 3 shows a cloth sample obtained by color matching printing of a vegetable dye in comparative example 1.
Detailed Description
The invention will now be further described with reference to the following examples, in which figure 1 is a preferred embodiment of the invention.
Example 1
A vegetable dye color matching printing process adopts 40S +30D bamboo ammonia single jersey, the width gram weight of which is 180cm x 210, and comprises the following steps: 1) pretreating the grey cloth, and adjusting the pH value of the cloth to be printed to 7.1 by using citric acid.
2) Color paste preparation:
1# orange color: guar gum 5%, citric acid 1%, lime 2%, antioxidant 1%
Adding deionized water to synthesize 100%;
2# brown: 2% of guar gum, 5% of tamarind seed, 1% of citric acid, 2% of lime branch, 4% of sand color, 1% of antioxidant and 100% of deionized water;
dark brown color # 3: 2% of guar bean, 5% of tamarind seed, 1.5% of citric acid, 2% of lime branch, 8% of sand color, 2% of antioxidant and 100% of deionized water;
4# Black: 5% of sodium alginate, 4% of soda, 10% of fermentation sugar, 5% of bamboo charcoal black and 100% of deionized water;
yellow color No. 5: 2% of guar bean, 5% of tamarind seed, 1% of citric acid, 3% of chrysanthemum yellow, 0.3% of soil color and 0.2% of lime branch, and adding deionized water to synthesize 100%;
6# Green: 5% of guar gum, 1% of citric acid, 0.8% of rose blue and 0.8% of chrysanthemum yellow, and 100% of deionized water is added;
7# dark green: 5% of guar gum, 1% of citric acid, 3% of rose blue and 3% of chrysanthemum yellow, and adding deionized water to synthesize 100%.
3) Printing: 8# magnetic bar, 150 mesh screen, vehicle speed 30 m/min.
4) Drying: the temperature was 140 ℃.
5) And (3) steaming: temperature 135 ℃ 5 min.
6) Washing with water: the plant dye has low dye uptake on pure cotton and much flooding, so the washing is well controlled, and the PH is adjusted to 8.0.
7) And (6) shaping. The temperature is controlled at 130 ℃, and the vehicle speed is 28 m.
The antioxidant used in the step 2) is rosemary extract.
Example 2
A vegetable dye color matching printing process adopts 50s pure cotton wool, and the width gram weight is as follows: 185cm 195g, comprising the steps of: 1) pretreating the grey cloth, and adjusting the pH value of the cloth to be printed to 6.4.
2) Color paste preparation
1# Green: 5% of guar gum, 1% of citric acid, 20g/L of olive green and 5g/L of hay color
Adding deionized water to synthesize 100%;
orange color No. 2: 5% of guar gum, 1% of citric acid, 15g/L of lime branch and 5g/L of carmine
Antioxidant 1%, and deionized water 100%.
3) Printing: 8# magnetic bar, 150 mesh screen, vehicle speed 30 m/min.
4) Drying: the temperature was 120 ℃.
5) And (3) steaming: the temperature is 130 ℃ for 5min, the temperature needs to be controlled well, the color can not be developed fully when the temperature is too low, and the color light is influenced when the temperature is too high.
6) Washing with water: the plant dye has low dye uptake on pure cotton and much flooding, so the washing is well controlled, and the PH is adjusted to be 7.5.
7) And (6) shaping. The temperature is controlled at 130 ℃, and the vehicle speed is 28 m.
Example 3
A vegetable dye color matching printing process is carried out on the basis of embodiment 1, wherein the steaming temperature is set to be 140 ℃.
Example 4
A plant dye color matching printing process is based on the embodiment 1, and the pH value of water washing is set to be 9.
Comparative example 1
A plant dye color matching printing process is disclosed, on the basis of the embodiment 1, the color paste preparation setting in the step 2) is as follows:
1# orange color: 5% of sodium alginate, 1% of soda and 2% of lime branch orange, and adding deionized water to synthesize 100%;
2# brown: 5% of sodium alginate, 1% of soda ash, 2% of orange branch and 4% of sand color, and adding deionized water to synthesize 100%;
dark brown color # 3: 5% of sodium alginate, 1% of soda ash, 2% of orange branch and 8% of sand color, and adding deionized water to synthesize 100%;
4# Black: 5% of sodium alginate, 1% of soda ash and 5% of bamboo charcoal black are synthesized by adding deionized water to 100%;
yellow color No. 5: 5% of sodium alginate, 1% of soda ash, 3% of chrysanthemum yellow, 0.3% of soil color and 0.2% of lime branch orange, and adding deionized water to synthesize 100%;
6# Green: sodium alginate 5% + soda ash 1% + rose blue 0.8% + chrysanthemum yellow 0.8%, adding deionized water to synthesize 100%;
7# dark green: 5% of sodium alginate, 1% of soda ash, 3% of rose blue, 3% of chrysanthemum yellow and deionized water are added to synthesize the product to be 100%.
Performance testing
The cloth samples obtained in the examples and the comparative examples are visually observed, and the cloth samples of the examples 1 and 2 and the comparative example 1 are shown in the following figures 1-3.
According to the comparison of the figures 1 and 3, even if the black and white images cannot see the difference of the colors in the images, the cloth sample dyed by the plant dye color matching printing process according to the invention has obviously darker color than that of the cloth sample obtained in the comparative example 1, especially, the outlines of the blocks of the colors in the images are obvious, the boundary lines between the blocks are obviously contrasted, and the color light can still be seen to be stronger after the black and white images are changed into the black and white images, so that the color is bright. Meanwhile, the cloth sample obtained in the embodiment 2 is bright in color and accurate in color, and the invention can be proved to successfully prepare a slurry formula which is suitable for mutual matching and compatibility among a plurality of plant dyes, and the proper slurry components are adopted to be matched with other process conditions, so that the plant dye chromatogram is really expanded and the stability is kept.
And (3) detecting color fastness:
washing and drying the cloth samples obtained after the printing of the examples and the comparative examples twice, and detecting the color fastness by adopting a visual inspection method of a goods inspector; the left palm and the right palm of a goods inspector are respectively placed on the cloth sample before washing and the cloth sample after washing, and the good illumination effect is achieved by eye-blinking for respectively looking for 1 second and repeating for 5-10 times. The left and right samples were considered by the tester to be substantially indistinguishable after several repetitions, the fewer the repetitions, the less the difference between the two samples is demonstrated, i.e., the higher the color fastness. The results are shown in Table 1.
Detecting the stability of the color paste:
for every 100 meters of print produced, there are meters that differ from the standard colors shown on the standard color chart. The existing plant printing dye paste can only be kept stable in transient printing due to the fact that two colors of color matching are difficult to be really compatible, namely, the color is kept to be the color of a standard color comparison card when being blended, and the color is slowly changed along with the printing, so that the cloth printed by different colors is caused. The results are shown in Table 1.
Color light measurement:
the color light was rated according to GB/T6688-2008 6.4.3. Delta CcmcThe color of the sample is brighter than that of the standard for the regular sample, and is dark otherwise.
Table 1 results of performance testing
By using the color paste and the printing method provided by the invention, the color paste and the printing method in the embodiments 1-4 hardly generate washing and fading phenomena, meanwhile, color matching printing can be stably realized in production, the obtained color matching color paste is stable and compatible, parking and re-color matching are not needed in the printing process, the dyeing gloss is high, the industrial application of the color matching printing of the plant dye is successfully realized, and the color spectrum of the pure plant dye is expanded.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (10)
1. A vegetable dye color matching printing process is characterized in that: the method comprises the following steps:
1) pretreating gray fabric; 2) preparing color paste; 3) printing; 4) drying; 5) steaming; 6) washing with water; 7) shaping;
the color paste in the step 2) comprises 1-10% of vegetable dye, 5-10% of a paste, 0-1.5% of citric acid and 0-2% of an antioxidant, wherein the paste is one or a mixture of more of guar gum, sodium alginate and tamarind in any proportion, and the balance is water;
the steaming temperature in the step 5) is 130-140 ℃; and the pH value of the water washing in the step 6) is 7.5-9.
2. The plant dye color matching printing process according to claim 1, characterized in that: the vegetable dye comprises one or a mixture of more of lime, sand, chrysanthemum, rose blue, olive green, liquorice, carmine and bamboo carbon black in any proportion.
3. The plant dye color matching printing process according to claim 1, characterized in that: and step 1), pre-treating to adjust the pH value of the cloth surface to 6-7.
4. The plant dye color matching printing process according to claim 1, characterized in that: the color paste is orange color paste, and comprises the following components in parts by weight: 5% of guar gum, 1% of citric acid, 2% of lime, 1% of antioxidant and the balance of water.
5. The plant dye color matching printing process according to claim 1, characterized in that: the color paste is brown color paste and comprises the following components in parts by weight: 2% of guar gum, 5% of tamarind, 1% -1.5% of citric acid, 2% of lime, 4% -8% of sand color, 1% -2% of antioxidant and the balance of water.
6. The plant dye color matching printing process according to claim 1, characterized in that: the color paste is black color paste, and comprises the following components in parts by weight: 5% of sodium alginate, 4% of sodium carbonate, 10% of fermented sugar, 5% of bamboo charcoal black and the balance of water.
7. The plant dye color matching printing process according to claim 1, characterized in that: the color paste is yellow color paste, and comprises the following components in parts by weight: 2% of guar gum, 5% of tamarind seed, 1% of citric acid, 3% of chrysanthemum yellow, 0.3% of soil color, 0.2% of lime, and the balance of water.
8. The plant dye color matching printing process according to claim 1, characterized in that: the color paste is green color paste, and comprises the following components in parts by weight: 5% of guar gum, 1% of citric acid, 0.8-3% of rose blue, 0.8-3% of chrysanthemum yellow and the balance of water.
9. The plant dye color matching printing process according to claim 1, characterized in that: the antioxidant is rosemary extract.
10. The plant dye color matching printing process according to claim 1, characterized in that: the setting temperature in the step 7) is 120-140 ℃.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114891364A (en) * | 2021-06-18 | 2022-08-12 | 东阳市神农纺织品有限公司 | Organic plant dye and preparation method and application thereof |
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