Printing process in production of water-spraying figured cloth

Abstract

The invention relates to the technical field of textile printing, and discloses a printing process in water-spraying jacquard fabric production, which at least comprises the following steps: S1, material preparation; s2, cloth pretreatment; s3, dye preparation; s4, dye blending; s5, printing; s6, color fixation; and S7, carrying out color fixation post-treatment. The digital ink-jet printing technology is combined with precise technological parameter control, the precision and definition of patterns are greatly improved, the problem of color deviation is effectively solved, the color fastness is remarkably improved by optimizing the color fixing technology and adding the color fixing aftertreatment step, the product is more durable, and the product quality is improved. The environment-friendly reactive dye and the matched environment-friendly assistant are selected, so that the use of harmful chemical substances in the printing and dyeing process is reduced, the pollution to the environment is reduced, the safety of the product is ensured, the consumption of water resources is greatly reduced through countercurrent rinsing, and the environmental protection effect is achieved while the non-fixed dye and assistant are efficiently removed. Energy consumption in the production process is reduced, resources are saved, and the method is more environment-friendly.

Description

Technical Field

[0001] The invention relates to the technical field of textile printing, in particular to a printing process in the production of water-jet jacquard cloth. Background Art

[0002] In the production of water-jet jacquard fabrics, the printing process is of vital importance. The common printing processes currently have many disadvantages. For example, traditional printing technology is prone to color deviation, and the fineness of the pattern is difficult to meet the market demand for high-quality products. In addition, in terms of color fixation, due to insufficient technology, the color fastness is poor and it is easy to fade after washing. In addition, some processes consume a lot of resources, especially water resources and energy. At present, with increasingly stringent environmental protection requirements, this has become a key factor restricting the development of the industry. At the same time, the traditional process is relatively complicated in the operation process, which not only increases labor costs, but also affects production efficiency. The present invention aims to overcome these defects and provide a printing process in the production of water-jet jacquard fabrics. Summary of the invention

[0003] The object of the present invention is to provide a printing process in the production of water-jet jacquard cloth to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the present invention is solved by the following technical solutions: A printing process in the production of water-jet jacquard cloth, comprising the following steps: S1. Material preparation; S2, fabric pretreatment; S3, dye preparation; S4, dye preparation; S5, printing; S6, color fixation; S7, post-color fixation treatment.

[0005] Preferably, the specific method in S1, raw material preparation step is as follows; S1-1. Use water-jet jacquard fabric with uniform texture and clear jacquard pattern as the base fabric. The fiber composition of the fabric can be natural fiber, chemical fiber or blended fiber according to product requirements; S1-2. Prepare environmentally friendly reactive dyes, deionized water, penetrants, color fixatives, pH adjusters and other auxiliary agents.

[0006] Preferably, the specific method in said S2, fabric pretreatment step is as follows; S2-1, put the water-sprayed jacquard fabric into a deionized water solution containing a penetrant, the concentration of the penetrant is 2-4 g / L, and soak it at a temperature of 45-55°C for 20-30 minutes; S2-2. After soaking, rinse the fabric with clean water to remove excess penetrant from the surface, and then dry it at 60-70℃ until the moisture content of the fabric is 6% to 8%; S2-3. After drying, check the flatness of the fabric. If there are wrinkles or other problems, perform simple ironing to make the surface of the fabric flat.

[0007] Preferably, the specific method in the step S3, dye preparation, is as follows; S3-1. Add environmentally friendly reactive dyes to deionized water in a certain proportion, with the mass ratio of dye to water being 1:10-1:15, and stir and dissolve at a temperature of 35-45°C for 1-2 hours to fully dissolve the dyes; S3-2, ultrasonic assistance is used during the stirring process, the ultrasonic frequency is 30-40kHz, the power is 120-180W, and the processing time is 15-20 minutes; S3-3. After dissolution is completed, the dye solution is subjected to a preliminary impurity test. If undissolved particles are found, a secondary filtration process is performed.

[0008] Preferably, the specific method in the step S4, dye preparation, is as follows; Add appropriate amounts of color fixing agent and pH adjusting agent to the filtered dye solution. The amount of color fixing agent added is 4% to 6% of the mass of the dye solution. The pH adjusting agent adjusts the pH value of the dye solution to 6.5-7.5.

[0009] Preferably, the specific method in the step S5, printing, is as follows: Using digital inkjet printing technology, the prepared dye liquid is sprayed onto the pre-treated water-jet jacquard cloth through a high-precision nozzle. The distance between the nozzle and the cloth surface is controlled at 1.5-2.5mm, and the inkjet speed is 8-12m / min.

[0010] Preferably, the specific method in the S6, color fixing step is as follows: S6-1. Put the printed fabric into the steam fixing device and fix the color for 20 to 30 minutes at a temperature of 105-115°C and a humidity of 85% to 95%; S6-2. After color fixing is completed, the fabric is subjected to a preliminary color fastness test. If it does not meet the standard, a secondary color fixing treatment is performed.

[0011] Preferably, the specific method in the S7, color fixation post-treatment step is as follows; S7-1, the fabric after color fixation is first washed with water, using a countercurrent rinsing method, for 15 to 25 minutes to remove unfixed dyes and auxiliaries; S7-2. After washing, dry the fabric at 70-80℃, and then soften it by soaking or spraying it with softener.

[0012] Preferably, in the step S6-1, temperature and humidity sensors are provided in the color fixing device to monitor and automatically adjust the color fixing environment parameters in real time.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adopts digital inkjet printing technology combined with precise process parameter control, which greatly improves the accuracy and clarity of the pattern, effectively solves the problem of color deviation, and significantly improves the color fastness by optimizing the color fixing process and adding the color fixing post-processing steps, making the product more durable; 2. In the material preparation stage, the present invention selects environmentally friendly reactive dyes and matching environmentally friendly auxiliaries, which reduces the use of harmful chemicals in the printing and dyeing process, reduces environmental pollution, and ensures the safety of the product; 3. The present invention adopts a countercurrent rinsing method in the post-fixation treatment. Through countercurrent rinsing, the washing water can be recycled multiple times, which greatly reduces the consumption of water resources. While achieving efficient removal of unfixed dyes and auxiliaries, it reduces energy consumption in the production process, saves resources and is more environmentally friendly. DETAILED DESCRIPTION

[0014] Unless the context clearly dictates otherwise, unmodified nouns and nouns modified by "the" include singular and plural referents.

[0015] As used in the specification and claims, the terms "comprises," "comprising," "having," "may," "containing," and variations thereof as used herein refer to open transitional phrases, terms, or words that require the presence of specified ingredients / steps and allow for the presence of other ingredients / steps. However, such descriptions should be interpreted as also describing compositions or methods as "consisting of" and "consisting essentially of" the recited ingredients / steps, which allows for the presence of only the specified ingredients / steps and any unavoidable impurities that may result therefrom, and excludes other ingredients / steps.

[0016] Numerical values ​​in the specification and claims of this application should be understood to include the same numerical values ​​when reduced to the same number of significant figures and numerical values ​​that differ from the stated value by less than the experimental error of ordinary measurement techniques of the type described in this application for determining the stated value.

[0017] All ranges disclosed herein are inclusive of the indicated endpoints and are independently combinable (eg, the range of "2 grams to 10 grams" includes the endpoints 2 grams and 10 grams, and all intermediate values).

[0018] The terms "about" and "approximately" can be used to include any numerical value that can be varied without changing the basic function of the value. When used with a range, "about" and "approximately" also disclose the range defined by the absolute values ​​of the two endpoints, for example, "about 2 to about 4" also discloses a range of "2 to 4". Generally, the terms "about" and "approximately" can refer to ±10% of the indicated number. However, for temperature, the term "approximately" refers to ±1°C.

[0019] Unless expressly stated otherwise, the percentages of elements are to be considered as percentages by weight of the alloy in question.

[0020] The present disclosure may refer to the temperature of certain method steps. It should be noted that these indicators generally refer to the temperature set by the heat source (such as a furnace), and not necessarily the temperature that the heated material must reach.

[0021] A printing process in the production of water-jet jacquard cloth comprises the following steps: S1. Material preparation; S1-1. Use water-jet jacquard fabric with uniform texture and clear jacquard pattern as the base fabric. The fiber composition of the fabric can be natural fiber, chemical fiber or blended fiber according to product requirements; S1-2. Prepare environmentally friendly reactive dyes, deionized water, penetrants, color fixatives, pH adjusters and other auxiliary agents.

[0022] S2, fabric pretreatment; S2-1, put the water-jet jacquard fabric into a deionized water solution containing a penetrant, the concentration of the penetrant is 2-4g / L, and soak it at a temperature of 45-55°C for 20-30 minutes, so that the deionized water solution containing the penetrant can contact the fabric more evenly, further improve the penetration effect, and reduce the printing quality problems caused by uneven local penetration of the fabric; S2-2. After soaking, rinse the fabric with clean water to remove excess penetrant from the surface, and then dry it at 60-70℃ until the moisture content of the fabric is 6% to 8%; S2-3. After drying, check the flatness of the fabric. If there are wrinkles or other problems, perform simple ironing to make the surface of the fabric flat.

[0023] S3, dye preparation; S3-1. Add environmentally friendly reactive dyes to deionized water in a certain proportion, with the mass ratio of dye to water being 1:10-1:15, and stir and dissolve at a temperature of 35-45°C for 1-2 hours to fully dissolve the dyes; S3-2, ultrasonic assistance is used during the stirring process, the ultrasonic frequency is 30-40kHz, the power is 120-180W, and the processing time is 15-20 minutes; S3-3. After dissolution is completed, the dye solution is subjected to a preliminary impurity test. If undissolved particles are found, a secondary filtration process is performed.

[0024] S4, dye preparation; Add appropriate amounts of color fixing agent and pH adjusting agent to the filtered dye solution. The amount of color fixing agent added is 4% to 6% of the mass of the dye solution. The pH adjusting agent adjusts the pH value of the dye solution to 6.5-7.5.

[0025] S5, printing; Using digital inkjet printing technology, the prepared dye liquid is sprayed onto the pre-treated water-jet jacquard cloth through a high-precision nozzle. The distance between the nozzle and the cloth surface is controlled at 1.5-2.5mm, and the inkjet speed is 8-12m / min.

[0026] S6, color fixation; S6-1. Put the printed fabric into the steam color fixing device and fix the color for 20 to 30 minutes at a temperature of 105-115°C and a humidity of 85% to 95%. The color fixing device is equipped with temperature and humidity sensors to monitor and automatically adjust the color fixing environment parameters in real time; S6-2. After color fixing is completed, the fabric is subjected to a preliminary color fastness test. If it does not meet the standard, a secondary color fixing treatment is performed.

[0027] S7, post-fixation treatment; S7-1, the fabric after color fixation is first washed with water, using the countercurrent rinsing method, the washing time is 15 to 25 minutes, to remove the unfixed dyes and auxiliaries, which greatly reduces the consumption of water resources; S7-2. After washing, dry the fabric at 70-80℃, and then soften it by soaking or spraying it with softener.

[0028] Specific steps: select water-jet jacquard fabric with uniform texture and clear jacquard as the base fabric. The fiber composition of the fabric can be natural fiber, chemical fiber or blended fiber according to product requirements. Prepare environmentally friendly reactive dyes, deionized water, penetrant, fixative, pH regulator and other auxiliaries. Put the water-jet jacquard fabric into a deionized water solution containing a penetrant with a concentration of 2-4g / L. Soak it at a temperature of 45-55℃ for 20-30 minutes to make the deionized water solution containing the penetrant contact the fabric more evenly, further improve the penetration effect, and reduce the printing quality problems caused by uneven local penetration of the fabric. After soaking, rinse the fabric with clean water to remove excess penetrant on the surface, then dry it at 60-70℃ until the moisture content of the fabric is 6%-8%. After drying, check the flatness of the fabric. If there are wrinkles or other problems, perform simple ironing to make the surface of the fabric flat. Add environmentally friendly active dyes to deionized water in a certain proportion. The mass ratio of dye to water is 1:10-1:15. Stir and dissolve at 35-45℃ for 1-2 hours to fully dissolve the dye. Ultrasonic waves are used to assist in the stirring process. The ultrasonic frequency is 30-40kHz, the power is 120-180W, and the processing time is 15~ After 20 minutes, the dye solution is initially tested for impurities. If undissolved particles are found, secondary filtration is performed. An appropriate amount of color fixer and pH adjuster are added to the filtered dye solution. The amount of color fixer added is 4% to 6% of the dye solution mass. The pH adjuster adjusts the pH value of the dye solution to 6.5-7.5. Digital inkjet printing technology is used to spray the prepared dye solution through a high-precision nozzle onto the pre-treated water-jet jacquard fabric. The distance between the nozzle and the fabric surface is controlled at 1.5-2.5mm, and the inkjet speed is 8-12m / min. The printed fabric is placed in the steam color fixation equipment. The color is fixed for 20 to 30 minutes at a temperature of 105-115°C and a humidity of 85% to 95%. Temperature and humidity sensors are set in the color fixing equipment to monitor and automatically adjust the color fixing environmental parameters in real time. After the color fixing is completed, the fabric is subjected to a preliminary color fastness test. If it does not meet the standard, a secondary color fixing treatment is carried out. The fixed fabric is first washed with water using a countercurrent rinsing method for 15 to 25 minutes to remove unfixed dyes and auxiliaries, greatly reducing the consumption of water resources. After washing, the fabric is dried at a temperature of 70-80°C, and then softened and finished by soaking or spraying the fabric with a softener.

[0029] Embodiment 1: S1. Material preparation; S1-1, select the water-jet jacquard fabric with uniform texture and clear jacquard of hemp fiber as the base fabric; S1-2. Prepare environmentally friendly reactive dyes, deionized water, penetrants, color fixatives, pH adjusters and other auxiliary agents.

[0030] S2, fabric pretreatment; S2-1, placing the water-sprayed jacquard fabric into a deionized water solution containing a penetrant with a concentration of 2.5 g / L, and soaking at 48°C for 28 minutes; S2-2. After soaking, rinse the fabric with clean water to remove excess penetrant from the surface, and then dry it at 63°C until the moisture content of the fabric is 7%; S2-3. After drying, check the flatness of the fabric. If there are wrinkles or other problems, perform simple ironing to make the surface of the fabric flat.

[0031] S3, dye preparation; S3-1, adding the environmentally friendly reactive dye into deionized water at a mass ratio of 1:13, stirring and dissolving at a temperature of 38° C. for 1.8 hours; S3-2, ultrasonic assistance was used during the stirring process, the ultrasonic frequency was 32kHz, the power was 130W, and the processing time was 16 minutes; S3-3. After dissolution is completed, the dye solution is subjected to a preliminary impurity test. If undissolved particles are found, a secondary filtration process is performed.

[0032] S4, dye preparation; A fixing agent was added to the filtered dye solution in an amount of 5% of the dye solution mass, and the pH value of the dye solution was adjusted to 7.2 with a pH adjuster.

[0033] S5, printing; Using digital inkjet printing technology, the prepared dye liquid is sprayed onto the pre-treated water-jet jacquard cloth through a high-precision nozzle. The distance between the nozzle and the cloth surface is controlled at 1.8mm, and the inkjet speed is 9m / min.

[0034] S6, color fixation; S6-1. Put the printed fabric into the steam color fixing device and fix the color for 27 minutes at a temperature of 108°C and a humidity of 88%. The color fixing device is equipped with temperature and humidity sensors to monitor and automatically adjust the color fixing environment parameters in real time; S6-2. After the color fixation is completed, the fabric is subjected to a preliminary color fastness test. If it meets the standard, no secondary color fixation treatment is required.

[0035] S7, post-fixation treatment; S7-1, the fabric after color fixation is first washed with water, using a countercurrent rinsing method for 18 minutes to remove unfixed dyes and auxiliaries; S7-2. After washing, dry the fabric at 73°C, and then soften and spray the fabric with softener.

[0036] Specific steps: select a water-jet jacquard fabric with uniform texture and clear jacquard of hemp fiber as the base fabric, prepare environmentally friendly active dyes, prepare deionized water, penetrant, fixing agent, pH adjuster and other auxiliaries, put the water-jet jacquard fabric into a deionized water solution containing penetrant, the concentration of penetrant is 2.5g / L, soak at 48°C for 28 minutes, rinse the fabric with clean water after soaking to remove excess penetrant on the surface, and then dry at 63°C until the moisture content of the fabric is 7%, and test the flatness of the fabric after drying. If there are problems such as wrinkles, perform simple ironing to make the surface of the fabric flat, add the environmentally friendly active dye to deionized water at a mass ratio of 1:13, stir and dissolve at 38°C for 1.8 hours, use ultrasonic assistance during the stirring process, the ultrasonic frequency is 32kHz, the power is 130W, and the processing time is 16 minutes. After the dissolution is completed, conduct a preliminary impurity test on the dye solution. If undissolved particles are found, A secondary filtration treatment is carried out, and a fixing agent is added to the filtered dye liquid in an amount of 5% of the dye liquid mass. The pH value of the dye liquid is adjusted to 7.2 with a pH adjuster. The prepared dye liquid is sprayed onto the pre-treated water-jet jacquard cloth through a high-precision nozzle using digital inkjet printing technology. The distance between the nozzle and the cloth surface is controlled at 1.8 mm, and the inkjet speed is 9 m / min. The printed cloth is placed in a steam fixing device and fixed for 27 minutes at a temperature of 108°C and a humidity of 88%. A temperature and humidity sensor is set in the fixing device to monitor and automatically adjust the fixing environmental parameters in real time. After the fixing is completed, the cloth is subjected to a preliminary color fastness test, and the standard is met without secondary fixing treatment. The cloth after fixing is first washed with water, and a countercurrent rinsing method is used for 18 minutes to remove unfixed dyes and auxiliaries. After washing, the cloth is dried at a temperature of 73°C, and then softened and finished, and the cloth is sprayed with a softener.

[0037] Embodiment 2: S1. Material preparation; S1-1, choose pure cotton with uniform texture and clear jacquard pattern as the base fabric; S1-2. Prepare environmentally friendly reactive dyes, deionized water, penetrants, color fixatives, pH adjusters and other auxiliary agents.

[0038] S2, fabric pretreatment; S2-1, put the water-sprayed jacquard fabric into a deionized water solution containing a penetrant with a concentration of 2 g / L, and soak it at 45°C for 30 minutes; S2-2. After soaking, rinse the fabric with clean water to remove excess penetrant from the surface, and then dry it at 60°C until the moisture content of the fabric is 8%; S2-3. After drying, check the flatness of the fabric. If there are wrinkles or other problems, perform simple ironing to make the surface of the fabric flat.

[0039] S3, dye preparation; S3-1, adding the environmentally friendly reactive dye into deionized water at a mass ratio of 1:15, stirring and dissolving at a temperature of 35° C. for 2 hours; S3-2, ultrasonic assistance is used during the stirring process, the ultrasonic frequency is 30kHz, the power is 120W, and the processing time is 20 minutes; S3-3. After dissolution is completed, the dye solution is subjected to a preliminary impurity test. If undissolved particles are found, a secondary filtration process is performed.

[0040] S4, dye preparation; A color fixing agent was added to the filtered dye solution in an amount of 4% of the dye solution mass, and the pH value of the dye solution was adjusted to 6.5 with a pH adjuster.

[0041] S5, printing; Using digital inkjet printing technology, the prepared dye liquid is sprayed onto the pre-treated water-jet jacquard cloth through a high-precision nozzle. The distance between the nozzle and the cloth surface is controlled at 1.5mm, and the inkjet speed is 8m / min.

[0042] S6, color fixation; S6-1. Put the printed fabric into the steam color fixing device and fix the color for 30 minutes at a temperature of 105°C and a humidity of 85%. The color fixing device is equipped with temperature and humidity sensors to monitor and automatically adjust the color fixing environment parameters in real time; S6-2. After the color fixation is completed, the fabric is subjected to a preliminary color fastness test. If it meets the standard, no secondary color fixation treatment is required.

[0043] S7, post-fixation treatment; S7-1, the fabric after color fixation is first washed with water, using a countercurrent rinsing method for 15 minutes to remove unfixed dyes and auxiliaries; S7-2. After washing, dry the fabric at 70°C, and then soften and spray the fabric with softener.

[0044] Specific steps: select pure cotton water-jet jacquard cloth with uniform texture and clear jacquard as the base fabric, prepare environmentally friendly active dyes, prepare deionized water, penetrant, fixing agent, pH adjuster and other auxiliaries, put the water-jet jacquard cloth into a deionized water solution containing penetrant, the concentration of penetrant is 2g / L, soak at 45℃ for 30 minutes, rinse the cloth with clean water after soaking to remove excess penetrant on the surface, and then dry it at 60℃ until the moisture content of the cloth is 8%, and test the flatness of the cloth after drying. If there are problems such as wrinkles, perform simple ironing to make the surface of the cloth flat, add environmentally friendly active dyes into deionized water at a mass ratio of 1:15, stir and dissolve at 35℃ for 2 hours, use ultrasonic assistance during the stirring process, the ultrasonic frequency is 30kHz, the power is 120W, and the processing time is 20 minutes. After the dissolution is completed, conduct a preliminary impurity test on the dye solution. If undissolved particles are found, conduct a second After the first filtration treatment, a fixing agent is added to the filtered dye liquid in an amount of 4% of the dye liquid mass. The pH value of the dye liquid is adjusted to 6.5 with a pH adjuster. The prepared dye liquid is sprayed onto the pre-treated water-jet jacquard cloth through a high-precision nozzle using digital inkjet printing technology. The distance between the nozzle and the cloth surface is controlled at 1.5 mm, and the inkjet speed is 8 m / min. The printed cloth is placed in a steam fixing device and fixed for 30 minutes at a temperature of 105°C and a humidity of 85%. A temperature and humidity sensor is set in the fixing device to monitor and automatically adjust the fixing environmental parameters in real time. After the fixing is completed, the cloth is subjected to a preliminary color fastness test, and if it meets the standard, no secondary fixing treatment is required. The cloth after fixing is first washed with water, and a countercurrent rinsing method is used for 15 minutes to remove unfixed dyes and auxiliaries. After washing, the cloth is dried at a temperature of 70°C, and then softened and finished, and the cloth is sprayed with a softener.

[0045] Embodiment 3: S1. Material preparation; S1-1. Use polyester fiber with uniform texture and clear jacquard pattern as the base fabric; S1-2. Prepare environmentally friendly reactive dyes, deionized water, penetrants, color fixatives, pH adjusters and other auxiliary agents.

[0046] S2, fabric pretreatment; S2-1, put the water-sprayed jacquard fabric into a deionized water solution containing a penetrant with a concentration of 4 g / L, and soak it at a temperature of 55°C for 20 minutes; S2-2. After soaking, rinse the fabric with clean water to remove excess penetrant from the surface, and then dry it at 70°C until the moisture content of the fabric is 6%; S2-3. After drying, check the flatness of the fabric. If there are wrinkles or other problems, perform simple ironing to make the surface of the fabric flat.

[0047] S3, dye preparation; S3-1, adding the environmentally friendly reactive dye into deionized water at a mass ratio of 1:10, stirring and dissolving at a temperature of 45°C for 1 hour; S3-2, ultrasonic assistance is used during the stirring process, the ultrasonic frequency is 40kHz, the power is 180W, and the processing time is 15 minutes; S3-3. After dissolution is completed, the dye solution is subjected to a preliminary impurity test. If undissolved particles are found, a secondary filtration process is performed.

[0048] S4, dye preparation; A color fixing agent was added to the filtered dye solution in an amount of 6% of the dye solution mass, and the pH value of the dye solution was adjusted to 7.5 with a pH adjusting agent.

[0049] S5, printing; Using digital inkjet printing technology, the prepared dye liquid is sprayed onto the pre-treated water-jet jacquard cloth through a high-precision nozzle. The distance between the nozzle and the cloth surface is controlled at 2.5mm, and the inkjet speed is 12m / min.

[0050] S6, color fixation; S6-1. Put the printed fabric into the steam color fixing device and fix the color for 20 minutes at a temperature of 115°C and a humidity of 95%. The color fixing device is equipped with temperature and humidity sensors to monitor and automatically adjust the color fixing environment parameters in real time; S6-2. After the color fixation is completed, the fabric is subjected to a preliminary color fastness test. If it does not meet the standard, a secondary color fixation treatment is performed. The secondary color fixation conditions are 110°C, 90% humidity, and time for 15 minutes.

[0051] S7, post-fixation treatment; S7-1, the fabric after color fixation is first washed with water, using a countercurrent rinsing method for 25 minutes to remove unfixed dyes and auxiliaries; S7-2. After washing, dry the fabric at 80°C, and then soften and spray the fabric with softener.

[0052] Specific steps: select a water-jet jacquard fabric with uniform texture and clear jacquard of polyester fiber as the base fabric, prepare environmentally friendly active dyes, prepare deionized water, penetrant, fixing agent, pH adjuster and other auxiliaries, put the water-jet jacquard fabric into a deionized water solution containing penetrant, the concentration of penetrant is 4g / L, soak at 55°C for 20 minutes, rinse the fabric with clean water after soaking to remove excess penetrant on the surface, and then dry it at 70°C until the moisture content of the fabric is 6%, and test the flatness of the fabric after drying. If there are problems such as wrinkles, perform simple ironing to make the surface of the fabric flat, add the environmentally friendly active dye to deionized water at a mass ratio of 1:10, stir and dissolve at 45°C for 1 hour, use ultrasonic assistance during the stirring process, the ultrasonic frequency is 40kHz, the power is 180W, and the processing time is 15 minutes. After the dissolution is completed, perform a preliminary impurity test on the dye solution. If undissolved particles are found, perform secondary filtration treatment, and add the filtered dye solution to the filter. A fixing agent is added to the liquid, and the amount added is 6% of the dye liquid mass. The pH value of the dye liquid is adjusted to 7.5 with a pH adjuster. The prepared dye liquid is sprayed onto the pre-treated water-jet jacquard fabric through a high-precision nozzle using digital inkjet printing technology. The distance between the nozzle and the fabric surface is controlled at 2.5mm, and the inkjet speed is 12m / min. The printed fabric is placed in a steam fixing device and fixed for 20 minutes at a temperature of 115°C and a humidity of 95%. The temperature and humidity in the fixing device are set to The humidity sensor monitors and automatically adjusts the color fixing environmental parameters in real time. After the color fixing is completed, the fabric is subjected to a preliminary color fastness test. If it does not meet the standard, a secondary color fixing treatment is performed. The secondary color fixing conditions are 110°C, 90% humidity, and 15 minutes. The color-fixed fabric is first washed with countercurrent rinsing for 25 minutes to remove unfixed dyes and auxiliaries. After washing, the fabric is dried at 80°C, then softened, and sprayed with softener.

[0053] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A printing process in the production of water-jet jacquard cloth, characterized in that: The following steps are involved: S1. Material preparation; S2, fabric pretreatment; S3, dye preparation; S4, dye preparation; S5, printing; S6, color fixation; S7, post-color fixation treatment.

2. The printing process for water-jet jacquard fabric production according to claim 1, characterized in that: The specific method in the step S1, raw material preparation, is as follows; S1-1. Use water-jet jacquard fabric with uniform texture and clear jacquard pattern as the base fabric. The fiber composition of the fabric can be natural fiber, chemical fiber or blended fiber according to product requirements; S1-2. Prepare environmentally friendly reactive dyes, deionized water, penetrants, color fixatives, pH adjusters and other auxiliary agents.

3. The printing process for water-jet jacquard fabric production according to claim 1, characterized in that: The specific method in the step S2, fabric pretreatment, is as follows; S2-1, put the water-sprayed jacquard fabric into a deionized water solution containing a penetrant, the concentration of the penetrant is 2-4 g / L, and soak it at a temperature of 45-55°C for 20-30 minutes; S2-2. After soaking, rinse the fabric with clean water to remove excess penetrant from the surface, and then dry it at 60-70℃ until the moisture content of the fabric is 6% to 8%; S2-3. After drying, check the flatness of the fabric. If there are wrinkles or other problems, perform simple ironing to make the surface of the fabric flat.

4. The printing process for water-jet jacquard fabric production according to claim 1, characterized in that: The specific method in the step S3, dye preparation, is as follows; S3-1. Add environmentally friendly reactive dyes to deionized water in a certain proportion, with the mass ratio of dye to water being 1:10-1:15, and stir and dissolve at a temperature of 35-45°C for 1-2 hours to fully dissolve the dyes; S3-2, ultrasonic assistance is used during the stirring process, the ultrasonic frequency is 30-40kHz, the power is 120-180W, and the processing time is 15-20 minutes; S3-3. After dissolution is completed, the dye solution is subjected to a preliminary impurity test. If undissolved particles are found, a secondary filtration process is performed.

5. The printing process in the production of water-jet jacquard cloth according to claim 1, characterized in that: The specific method in the step S4, dye preparation, is as follows; Add appropriate amounts of color fixing agent and pH adjusting agent to the filtered dye solution. The amount of color fixing agent added is 4% to 6% of the mass of the dye solution. The pH adjusting agent adjusts the pH value of the dye solution to 6.5-7.

5.

6. The printing process for water-jet jacquard fabric production according to claim 1, characterized in that: The specific method in the step S5, printing, is as follows; Using digital inkjet printing technology, the prepared dye liquid is sprayed onto the pre-treated water-jet jacquard cloth through a high-precision nozzle. The distance between the nozzle and the cloth surface is controlled at 1.5-2.5mm, and the inkjet speed is 8-12m / min.

7. The printing process for water-jet jacquard fabric production according to claim 1, characterized in that: The specific method in the S6, color fixing step is as follows; S6-1. Put the printed fabric into the steam fixing device and fix the color for 20 to 30 minutes at a temperature of 105-115°C and a humidity of 85% to 95%; S6-2. After color fixing is completed, the fabric is subjected to a preliminary color fastness test. If it does not meet the standard, a secondary color fixing treatment is performed.

8. The printing process for water-jet jacquard fabric production according to claim 1, characterized in that: The specific method in the S7, color fixation post-treatment step is as follows; S7-1, the fabric after color fixation is first washed with water, using a countercurrent rinsing method, for 15 to 25 minutes to remove unfixed dyes and auxiliaries; S7-2. After washing, dry the fabric at 70-80℃, and then soften it by soaking or spraying it with softener.

9. The printing process in the production of water-jet jacquard fabric according to claim 7, characterized in that: In the step S6-1, temperature and humidity sensors are provided in the color fixing device to monitor and automatically adjust the color fixing environment parameters in real time.