High-color-yield paste printing color paste mixing process

Abstract

The invention provides a high-color-yield paste printing color paste mixing process, and belongs to the technical field of color pastes.The paste mixing process comprises the following steps that S1, 70-75 parts by weight of organic interpenetrating modified sodium alginate hydrogel, 10-15 parts by weight of sodium chloride, 0.5-1 part by weight of preservative and 0.5-1 part by weight of penetrant are dissolved in 100-120 parts by weight of water, and a paste aqueous solution is obtained; s2, dissolving 3 parts of a cationic dye in 10-15 parts of water, then adding 0.5-1 part of a modified adsorbent, and uniformly stirring to obtain a dye aqueous solution; and S3, pulping and homogenizing the paste aqueous solution obtained in S1 and the dye aqueous solution obtained in S2 to obtain the paste printing paste with high color yield. According to the invention, the size mixing process is simple, and the color yield is high.

Description

Technical Field

[0001] The invention belongs to the technical field of color pastes, and in particular relates to a slurry mixing process for a high-color-yield paste printing color paste. Background Art

[0002] Printing paste refers to the mixture of printing paste (a hydrophilic polymer thick colloidal solution that is generally dissolved in water or fully swelled and dispersed in water before being added to the printing paste) and dye water in different proportions. Printing paste requires that the components are mixed in a uniform state; no impurities, no large particles, no lumps; have certain wettability, adhesion and cohesion; have certain rheological properties; have good printing uniformity and appropriate print penetration; and good stability.

[0003] In addition, high efficiency and high color yield are the key to achieving high-quality printing and improving the competitiveness of printed fabric products. Therefore, it is particularly important to ensure that the slurry mixing process is simple and efficient while improving the color yield. Summary of the invention

[0004] In order to solve the problems existing in the background technology, the present invention provides a high color yield paste printing color paste slurry mixing process, which ensures that the slurry mixing process is simple while having a high color yield.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A high color yield paste printing color paste slurry mixing process, comprising the following steps:

[0007] S1. Dissolve 70-75 parts of organic interpenetrating modified sodium alginate hydrogel, 10-15 parts of sodium chloride, 0.5-1 parts of preservative and 0.5-1 parts of penetrant in 100-120 parts of water by weight to obtain a paste aqueous solution;

[0008] S2, dissolving 3 parts of cationic dye in 10-15 parts of water, adding 0.5-1 parts of modified adsorbent, stirring evenly, to obtain a dye aqueous solution;

[0009] S3, beating and homogenizing the paste aqueous solution obtained in S1 and the dye aqueous solution obtained in S2 to obtain a high color yield paste printing paste.

[0010] Further, in S1, the preparation method of the organic interpenetrating modified sodium alginate hydrogel is as follows:

[0011] S11, weigh 100 parts of sodium alginate by weight, dissolve it in 80-100 parts of pH 7.0 phosphate buffer, then add 50-70 parts of 35% polycaprolactone chloroform solution, stir at room temperature for 12 hours, and obtain the product;

[0012] S12, injecting the product obtained in S11 into 300-500 parts by mass of 12% calcium chloride solution to form gel, and magnetically stirring for 1-2 hours to obtain a matured gel;

[0013] S13, taking out the matured gel obtained in S12, and vacuum drying it for 24 hours to obtain an organic interpenetrating modified sodium alginate hydrogel.

[0014] Furthermore, the mesh size of the sodium alginate is 60-80 meshes.

[0015] Furthermore, in S1, the preservative is liquid preservative KN-18B.

[0016] Furthermore, in S1, the penetrant includes fatty alcohol polyoxyethylene ether and / or alkyl phosphate.

[0017] Furthermore, in S2, the cationic dye includes cationic red X-GTL or methylene blue.

[0018] Further, in S2, the preparation method of the modified adsorbent is as follows:

[0019] S21, washing the flax, drying and crushing it, and passing it through a 60-mesh sieve to obtain flax scraps;

[0020] S22. Take 10 g of the flax powder obtained in S21 and put it into a conical flask. Add 200 mL of 30-50% tartaric acid aqueous solution, heat and stir, filter, and wash with deionized water until the pH value of the filtrate is 7±0.2. After drying the filter residue at 65°C for 8 hours, cool it naturally to room temperature to obtain the modified adsorbent.

[0021] Furthermore, in S22, the specific operation of heating and stirring is: using a magnetic heating stirrer to stir at a temperature of 60-70° C. for 30-50 min.

[0022] Furthermore, the specific operation of S3 is: putting the paste aqueous solution obtained from S1 and the dye aqueous solution obtained from S2 into a beater, stirring at room temperature at a speed of 800-1000r / min for 30-40min, then heating to 50-60°C, and continuing stirring for 10-15min to obtain a high color yield paste printing paste.

[0023] This application has the following beneficial effects:

[0024] 1. The present invention adopts organic interpenetrating modified sodium alginate hydrogel to prepare a paste aqueous solution, adopts cationic dye plus modified adsorbent to prepare a dye aqueous solution, and then the paste aqueous solution and the dye aqueous solution are pulped and homogenized to obtain a high color yield paste printing paste. The process is simple. It has been verified by experiments that the color yield can be improved by making the raw material sodium alginate of the paste into organic interpenetrating modified sodium alginate hydrogel and then using it; the raw material flax scraps of the adsorbent are modified by tartaric acid and then used, which can also improve the color yield; and the common use of the two can synergistically improve the color yield; there is also a synergistic effect between the organic interpenetrating modified sodium alginate hydrogel and the cationic dye, which can synergistically improve the color yield.

[0025] 2. In the preparation of organic interpenetrating modified sodium alginate hydrogel, sodium alginate is dissolved in phosphate buffer, and then polycaprolactone chloroform solution is added, and the mixture is evenly mixed by stirring at room temperature to form a prepolymer, which is injected into a calcium chloride solution. The sodium ions in the sodium alginate exchange ions with the calcium ions in the calcium chloride to form a cross-linked gel network structure; due to its special network structure and the introduction of organic components, the organic interpenetrating modified sodium alginate hydrogel can change its adsorption capacity, dispersibility and interaction with dye molecules, thereby improving the color yield.

[0026] 3. Organic interpenetrating modified sodium alginate hydrogel has a large amount of negative charge. Cationic dyes with positive charge are selected. On the one hand, cationic dyes can dissolve in water during the dyeing process to generate colored ions with positive charge. These cations can combine with acidic groups in the fabric to dye the fiber. On the other hand, the adsorption capacity can be enhanced and effectively adsorbed by the negatively charged hydrogel, thereby improving the color yield. At the same time, tartaric acid is used to modify the flax scraps. On the surface of the flax scraps, tartaric acid can form tartaric acid esters by esterification reaction with the hydroxyl groups on the fiber surface, introduce negative charges, and enhance the interaction with the cationic dye. Through modification, the compatibility between the hydrogel and the adsorbent can be significantly improved, ensuring that the two are better combined in application, thereby synergistically improving the color yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 , a comparative trend diagram of the color yield of printed fabrics prepared by high color yield paste printing pastes obtained in Examples 1-7 of the present invention and Comparative Examples 1-6. DETAILED DESCRIPTION

[0028] The present application is further described in detail below with reference to the embodiments.

[0029] Unless otherwise specified, the raw materials used in the examples and comparative examples of the present application are all commercially available.

[0030] Embodiment 1: A high color yield paste printing color paste slurry mixing process, comprising the following steps:

[0031] S1. Dissolve 72 parts of organic interpenetrating modified sodium alginate hydrogel, 12 parts of sodium chloride, 0.7 parts of preservative and 0.7 parts of penetrant in 110 parts of water by weight to obtain a paste aqueous solution. The preservative is liquid preservative KN-18B purchased from Guangzhou Nanhong Chemical Co., Ltd. The penetrant is fatty alcohol polyoxyethylene ether purchased from Pande (Shanghai) International Trade Co., Ltd.

[0032] S2, dissolve 3 parts of cationic dye in 13 parts of water, add 0.7 parts of modified adsorbent, stir evenly, and obtain dye aqueous solution. Wherein, cationic dye is cationic red X-GTL, purchased from Hubei Jusheng Technology Co., Ltd. S1 and S2 are the same weight parts standard.

[0033] S3. Put the paste aqueous solution obtained from S1 and the dye aqueous solution obtained from S2 into a beater, stir at room temperature at a speed of 900 r / min for 35 minutes, then heat to 55°C and continue stirring for 12 minutes to obtain a high color yield paste printing paste.

[0034] In S1, the preparation method of organic interpenetrating modified sodium alginate hydrogel is as follows:

[0035] S11, weigh 100 parts of sodium alginate by weight, dissolve it in 90 parts of phosphate buffer with pH 7.0, then add 60 parts of 35% polycaprolactone chloroform solution, stir at room temperature for 12 hours, and obtain the product. The mesh size of the sodium alginate is 60-80 mesh.

[0036] S12, injecting the product obtained in S11 into 400 parts of 12% calcium chloride solution to form gel, and magnetically stirring for 1.5 hours to obtain a matured gel;

[0037] S13, taking out the matured gel obtained in S12, and vacuum drying it for 24 hours to obtain an organic interpenetrating modified sodium alginate hydrogel.

[0038] In S2, the preparation method of the modified adsorbent is as follows:

[0039] S21, washing the flax, drying and crushing it, and passing it through a 60-mesh sieve to obtain flax scraps;

[0040] S22. Take 10 g of the flax scraps obtained in S21 and put them into a conical flask. Add 200 mL of 40% tartaric acid aqueous solution. Use a magnetic heating stirrer to stir at 65°C for 40 minutes, filter, and wash with deionized water until the pH value of the filtrate is 7±0.2. Dry the filter residue at 65°C for 8 hours, and then cool it naturally to room temperature to obtain the modified adsorbent.

[0041] Embodiment 2: The difference between this embodiment and embodiment 1 is that: a high color yield paste printing color paste slurry mixing process comprises the following steps:

[0042] S1. Dissolve 70 parts of organic interpenetrating modified sodium alginate hydrogel, 10 parts of sodium chloride, 0.5 parts of preservative and 0.5 parts of penetrant in 100 parts of water by weight to obtain a paste aqueous solution. The preservative is liquid preservative KN-18B purchased from Guangzhou Nanhong Chemical Co., Ltd. The penetrant is fatty alcohol polyoxyethylene ether purchased from Pande (Shanghai) International Trade Co., Ltd.

[0043] S2, dissolving 3 parts of cationic dye in 10 parts of water, adding 0.5 parts of modified adsorbent, stirring evenly, and obtaining a dye aqueous solution. The cationic dye includes cationic red X-GTL, which is purchased from Hubei Jusheng Technology Co., Ltd.

[0044] S3. Put the paste aqueous solution obtained from S1 and the dye aqueous solution obtained from S2 into a beater, stir at room temperature at a speed of 800 r / min for 30 minutes, then heat to 50°C and continue stirring for 10 minutes to obtain a high color yield paste printing paste.

[0045] Embodiment 3: The difference between this embodiment and embodiment 1 is that: a high color yield paste printing color paste slurry mixing process comprises the following steps:

[0046] S1. Dissolve 75 parts of organic interpenetrating modified sodium alginate hydrogel, 15 parts of sodium chloride, 1 part of preservative and 1 part of penetrant in 120 parts of water by weight to obtain a paste aqueous solution. The preservative is liquid preservative KN-18B purchased from Guangzhou Nanhong Chemical Co., Ltd. The penetrant is fatty alcohol polyoxyethylene ether purchased from Pande (Shanghai) International Trade Co., Ltd.

[0047] S2, dissolving 3 parts of cationic dye in 15 parts of water, adding 1 part of modified adsorbent, stirring evenly, and obtaining a dye aqueous solution. The cationic dye includes cationic red X-GTL, which is purchased from Hubei Jusheng Technology Co., Ltd.

[0048] S3. Put the paste aqueous solution obtained from S1 and the dye aqueous solution obtained from S2 into a beater, stir at room temperature at a speed of 1000r / min for 40min, then heat to 60°C and continue stirring for 15min to obtain a high color yield paste printing paste.

[0049] Example 4: The difference between this example and Example 1 is that the preparation method of the organic interpenetrating modified sodium alginate hydrogel is as follows:

[0050] S11. Weigh 100 parts of sodium alginate by weight, dissolve it in 80 parts of phosphate buffer at pH 7.0, then add 50 parts of 35% polycaprolactone chloroform solution, stir at room temperature for 12 hours to obtain the product. The mesh size of the sodium alginate is 60-80 mesh.

[0051] S12, injecting the product obtained in S11 into 300 parts by mass of 12% calcium chloride solution to form gel, and magnetically stirring for 1.5 hours to obtain a matured gel;

[0052] S13, taking out the matured gel obtained in S12, and vacuum drying it for 24 hours to obtain an organic interpenetrating modified sodium alginate hydrogel.

[0053] Example 5: The difference between this example and Example 1 is that the preparation method of the organic interpenetrating modified sodium alginate hydrogel is as follows:

[0054] S11. Weigh 100 parts of sodium alginate by weight, dissolve it in 100 parts of phosphate buffer at pH 7.0, then add 70 parts of 35% polycaprolactone chloroform solution, stir at room temperature for 12 hours, and obtain the product. The mesh size of the sodium alginate is 60-80 mesh.

[0055] S12, injecting the product obtained in S11 into 500 parts by mass of 12% calcium chloride solution to form gel, and magnetically stirring for 1.5 hours to obtain a matured gel;

[0056] S13, taking out the matured gel obtained in S12, and vacuum drying it for 24 hours to obtain an organic interpenetrating modified sodium alginate hydrogel.

[0057] Example 6: The difference between this example and Example 1 is that the preparation method of the modified adsorbent is as follows:

[0058] S21, washing the flax, drying and crushing it, and passing it through a 60-mesh sieve to obtain flax scraps;

[0059] S22. Take 10 g of the flax scraps obtained in S21 and put them into a conical flask. Add 200 mL of a 30% by mass aqueous solution of tartaric acid. Use a magnetic heating stirrer to stir at 60°C for 30 minutes, filter, and wash with deionized water until the pH value of the filtrate is 7±0.2. Dry the filter residue at 65°C for 8 hours, and then cool it naturally to room temperature to obtain the modified adsorbent.

[0060] Example 7: The difference between this example and Example 1 is that the preparation method of the modified adsorbent is as follows:

[0061] S21, washing the flax, drying and crushing it, and passing it through a 60-mesh sieve to obtain flax scraps;

[0062] S22. Take 10 g of the flax powder obtained in S21 and put it into a conical flask. Add 200 mL of 50% tartaric acid aqueous solution. Use a magnetic heating stirrer to stir at 70°C for 50 minutes, filter, and wash with deionized water until the pH value of the filtrate is 7±0.2. After drying the filter residue at 65°C for 8 hours, naturally cool to room temperature to obtain the modified adsorbent.

[0063] Comparative Example 1: The difference between this embodiment and Example 1 is that the organic interpenetrating modified sodium alginate hydrogel is replaced by sodium alginate.

[0064] Specifically, a high color yield paste printing color paste slurry mixing process comprises the following steps:

[0065] S1. By weight, 72 parts of sodium alginate, 12 parts of sodium chloride, 0.7 parts of preservative and 0.7 parts of penetrant are dissolved in 110 parts of water to obtain a paste aqueous solution. Among them, the preservative is a liquid preservative KN-18B purchased from Guangzhou Nanhong Chemical Co., Ltd. The penetrant is a fatty alcohol polyoxyethylene ether purchased from Pande (Shanghai) International Trade Co., Ltd. The mesh number of sodium alginate is 60-80 mesh.

[0066] S2, dissolve 3 parts of cationic dye in 13 parts of water, add 0.7 parts of modified adsorbent, stir evenly, and obtain dye aqueous solution. Wherein, cationic dye is cationic red X-GTL, purchased from Hubei Jusheng Technology Co., Ltd. S1 and S2 are the same weight parts standard.

[0067] S3. Put the paste aqueous solution obtained from S1 and the dye aqueous solution obtained from S2 into a beater, stir at room temperature at a speed of 900 r / min for 35 minutes, then heat to 55°C and continue stirring for 12 minutes to obtain a high color yield paste printing paste.

[0068] Comparative Example 2: The difference between this example and Example 1 is that the modified adsorbent is replaced by flax scraps.

[0069] Specifically, a high color yield paste printing color paste slurry mixing process comprises the following steps:

[0070] S1. Dissolve 72 parts of organic interpenetrating modified sodium alginate hydrogel, 12 parts of sodium chloride, 0.7 parts of preservative and 0.7 parts of penetrant in 110 parts of water by weight to obtain a paste aqueous solution. The preservative is liquid preservative KN-18B purchased from Guangzhou Nanhong Chemical Co., Ltd. The penetrant is fatty alcohol polyoxyethylene ether purchased from Pande (Shanghai) International Trade Co., Ltd.

[0071] S2, dissolve 3 parts of cationic dye in 13 parts of water, add 0.7 parts of flax scraps, stir evenly, and obtain a dye aqueous solution. Wherein, the cationic dye is cationic red X-GTL, purchased from Hubei Jusheng Technology Co., Ltd. S1 and S2 are the same weight parts standard.

[0072] S3. Put the paste aqueous solution obtained from S1 and the dye aqueous solution obtained from S2 into a beater, stir at room temperature at a speed of 900 r / min for 35 minutes, then heat to 55°C and continue stirring for 12 minutes to obtain a high color yield paste printing paste.

[0073] The preparation method of flax scraps is as follows: wash the flax, dry it, grind it, and pass it through a 60-mesh sieve to obtain the flax scraps.

[0074] Comparative Example 3: The difference between this example and Example 1 is that the organic interpenetrating modified sodium alginate hydrogel is replaced by sodium alginate, and the modified adsorbent is replaced by flax scraps.

[0075] Specifically, a high color yield paste printing color paste slurry mixing process comprises the following steps:

[0076] S1. By weight, 72 parts of sodium alginate, 12 parts of sodium chloride, 0.7 parts of preservative and 0.7 parts of penetrant are dissolved in 110 parts of water to obtain a paste aqueous solution. Among them, the preservative is a liquid preservative KN-18B purchased from Guangzhou Nanhong Chemical Co., Ltd. The penetrant is a fatty alcohol polyoxyethylene ether purchased from Pande (Shanghai) International Trade Co., Ltd. The mesh number of sodium alginate is 60-80 mesh.

[0077] S2, dissolving 3 parts of cationic dye in 13 parts of water, adding 0.7 parts of flax scraps, stirring evenly, and obtaining a dye aqueous solution. Wherein, the cationic dye is cationic red X-GTL, purchased from Hubei Jusheng Technology Co., Ltd. S1 and S2 are the same weight parts standard. The preparation method of flax scraps is to wash flax, dry and crush it, and pass it through a 60-mesh sieve to obtain flax scraps.

[0078] S3. Put the paste aqueous solution obtained from S1 and the dye aqueous solution obtained from S2 into a beater, stir at room temperature at a speed of 900 r / min for 35 minutes, then heat to 55°C and continue stirring for 12 minutes to obtain a high color yield paste printing paste.

[0079] Comparative Example 4: The difference between this embodiment and embodiment 1 is that the cationic dye is replaced by anionic dye. Specifically, the anionic dye is Runba water-soluble dye SR3080-2, purchased from Shanghai Jingyan Chemical Co., Ltd.

[0080] Specifically, a high color yield paste printing color paste slurry mixing process comprises the following steps:

[0081] S1. Dissolve 72 parts of organic interpenetrating modified sodium alginate hydrogel, 12 parts of sodium chloride, 0.7 parts of preservative and 0.7 parts of penetrant in 110 parts of water by weight to obtain a paste aqueous solution. The preservative is liquid preservative KN-18B purchased from Guangzhou Nanhong Chemical Co., Ltd. The penetrant is fatty alcohol polyoxyethylene ether purchased from Pande (Shanghai) International Trade Co., Ltd.

[0082] S2, dissolve 3 parts of anionic dye in 13 parts of water, add 0.7 parts of modified adsorbent, stir evenly, and obtain dye aqueous solution. Wherein, the anionic dye is Runba water-soluble dye SR3080-2, purchased from Shanghai Jingyan Chemical Co., Ltd. S1 and S2 are the same weight parts standard.

[0083] S3. Put the paste aqueous solution obtained from S1 and the dye aqueous solution obtained from S2 into a beater, stir at room temperature at a speed of 900 r / min for 35 minutes, then heat to 55°C and continue stirring for 12 minutes to obtain a high color yield paste printing paste.

[0084] Comparative Example 5: The difference between this example and Example 1 is that the organic interpenetrating modified sodium alginate hydrogel is replaced by sodium alginate, and the cationic dye is replaced by anionic dye.

[0085] Specifically, a high color yield paste printing color paste slurry mixing process comprises the following steps:

[0086] S1. By weight, 72 parts of sodium alginate, 12 parts of sodium chloride, 0.7 parts of preservative and 0.7 parts of penetrant are dissolved in 110 parts of water to obtain a paste aqueous solution. Among them, the preservative is a liquid preservative KN-18B purchased from Guangzhou Nanhong Chemical Co., Ltd. The penetrant is a fatty alcohol polyoxyethylene ether purchased from Pande (Shanghai) International Trade Co., Ltd. The mesh number of sodium alginate is 60-80 mesh.

[0087] S2, dissolve 3 parts of anionic dye in 13 parts of water, add 0.7 parts of modified adsorbent, stir evenly, and obtain dye aqueous solution. Wherein, the anionic dye is Runba water-soluble dye SR3080-2, purchased from Shanghai Jingyan Chemical Co., Ltd. S1 and S2 are the same weight parts standard.

[0088] S3. Put the paste aqueous solution obtained from S1 and the dye aqueous solution obtained from S2 into a beater, stir at room temperature at a speed of 900 r / min for 35 minutes, then heat to 55°C and continue stirring for 12 minutes to obtain a high color yield paste printing paste.

[0089] Comparative Example 6: The difference between this example and Example 1 is that the organic interpenetrating modified sodium alginate hydrogel is replaced by sodium alginate, and the modified adsorbent is replaced by flax scraps, and the cationic dye is replaced by anionic dye.

[0090] Specifically, a high color yield paste printing color paste slurry mixing process comprises the following steps:

[0091] S1. By weight, 72 parts of sodium alginate, 12 parts of sodium chloride, 0.7 parts of preservative and 0.7 parts of penetrant are dissolved in 110 parts of water to obtain a paste aqueous solution. Among them, the preservative is a liquid preservative KN-18B purchased from Guangzhou Nanhong Chemical Co., Ltd. The penetrant is a fatty alcohol polyoxyethylene ether purchased from Pande (Shanghai) International Trade Co., Ltd. The mesh number of sodium alginate is 60-80 mesh.

[0092] S2, dissolve 3 parts of anionic dye in 13 parts of water, add 0.7 parts of flax scraps, stir evenly, and obtain a dye aqueous solution. The anionic dye is Runba water-soluble dye SR3080-2, purchased from Shanghai Jingyan Chemical Co., Ltd. S1 and S2 are the same weight parts standard.

[0093] S3. Put the paste aqueous solution obtained from S1 and the dye aqueous solution obtained from S2 into a beater, stir at room temperature at a speed of 900 r / min for 35 minutes, then heat to 55°C and continue stirring for 12 minutes to obtain a high color yield paste printing paste.

[0094] Test Example 1: Test object: Printing pastes were prepared according to Examples 1-7 and Comparative Examples 1-5.

[0095] Test item: color yield.

[0096] Test method: Use each test object to perform sizing padding, drying, digital printing, drying, steaming, washing and drying on cotton fabrics, and finally obtain printed fabrics. Use Datacolor SF600X computer colorimeter to measure the K / S value on the front and back of the printed fabrics. The average value of the two is the K / S average value. The larger the K / S average value, the higher the color yield.

[0097] Test results: See Table 1.

[0098] Table 1. Test data of the experimental example

[0099] Color yield-K / S average value Example 1 24.38 Example 2 24.15 Example 3 24.43 Example 4 23.97 Example 5 24.22 Example 6 23.91 Example 7 24.17 Comparative Example 1 19.33 Comparative Example 2 21.35 Comparative Example 3 17.88 Comparative Example 4 22.37 Comparative Example 5 18.59 Comparative Example 6 17.08

[0100] Result analysis: Analyze Examples 1-7 and combine the data in Table 1 and Figure 1 It can be seen that the average K / S value of the printed fabric made of the printing paste of the present invention can reach above 23.91, and the color yield is high and stable.

[0101] Analyze Example 1 and Comparative Examples 1-3 and combine the data in Table 1 and Figure 1 It can be seen that in the slurry preparation of the printing color paste of the present invention, the color yield can be improved by making the raw material sodium alginate of the paste into an organic interpenetrating modified sodium alginate hydrogel before using it; the color yield can also be improved by modifying the flax scraps with tartaric acid before using them; and the common use of the two can synergistically improve the color yield.

[0102] Analyze Example 1 and Comparative Examples 1, 4-5 and combine the data in Table 1 and Figure 1 It can be seen that in the slurry preparation of the printing color paste of the present invention, the color yield can be improved by making the raw material sodium alginate of the paste into an organic interpenetrating modified sodium alginate hydrogel before using it; the color yield can also be improved by changing the anionic dye to a cationic dye; and there is a synergistic effect between the two, which can synergistically improve the color yield.

[0103] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0104] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A high color yield paste printing color paste sizing process, characterized in that: The steps include: S1. Dissolve 70-75 parts of organic interpenetrating modified sodium alginate hydrogel, 10-15 parts of sodium chloride, 0.5-1 parts of preservative and 0.5-1 parts of penetrant in 100-120 parts of water by weight to obtain a paste aqueous solution; S2, dissolving 3 parts of cationic dye in 10-15 parts of water, adding 0.5-1 parts of modified adsorbent, stirring evenly, to obtain a dye aqueous solution; S3, beating and homogenizing the paste aqueous solution obtained in S1 and the dye aqueous solution obtained in S2 to obtain a high color yield paste printing paste.

2. The high color yield paste printing paste slurry mixing process according to claim 1, characterized in that: In S1, the preparation method of the organic interpenetrating modified sodium alginate hydrogel is as follows: S11, weigh 100 parts of sodium alginate by weight, dissolve it in 80-100 parts of pH 7.0 phosphate buffer, then add 50-70 parts of 35% polycaprolactone chloroform solution, stir at room temperature for 12 hours, and obtain the product; S12, injecting the product obtained in S11 into 300-500 parts by mass of 12% calcium chloride solution to form gel, and magnetically stirring for 1-2 hours to obtain a matured gel; S13, taking out the matured gel obtained in S12, and vacuum drying it for 24 hours to obtain an organic interpenetrating modified sodium alginate hydrogel.

3. The high color yield paste printing paste slurry mixing process according to claim 2, characterized in that: The mesh number of the sodium alginate is 60-80 meshes.

4. The high color yield paste printing paste slurry mixing process according to claim 1, characterized in that: In S1, the preservative is liquid preservative KN-18B.

5. The high color yield paste printing paste slurry mixing process according to claim 1, characterized in that: In S1, the penetrant includes fatty alcohol polyoxyethylene ether and / or alkyl phosphate.

6. The high color yield paste printing paste slurry mixing process according to claim 1, characterized in that: In S2, the cationic dye includes cationic red X-GTL or methylene blue.

7. The high color yield paste printing paste slurry mixing process according to claim 1, characterized in that: In S2, the preparation method of the modified adsorbent is as follows: S21, washing the flax, drying and crushing it, and passing it through a 60-mesh sieve to obtain flax scraps; S22. Take 10 g of the flax powder obtained in S21 and put it into a conical flask. Add 200 mL of 30-50% tartaric acid aqueous solution, heat and stir, filter, and wash with deionized water until the pH value of the filtrate is 7±0.

2. After drying the filter residue at 65°C for 8 hours, cool it naturally to room temperature to obtain the modified adsorbent.

8. The high color yield paste printing paste slurry mixing process according to claim 7, characterized in that: In S22, the specific operation of heating and stirring is: using a magnetic heating stirrer to stir at a temperature of 60-70° C. for 30-50 min.

9. The high color yield paste printing paste slurry mixing process according to claim 1, characterized in that: The specific operation of S3 is: put the paste aqueous solution obtained from S1 and the dye aqueous solution obtained from S2 into a beater, stir at room temperature at a speed of 800-1000r / min for 30-40min, then heat to 50-60℃, and continue stirring for 10-15min to obtain a high color yield paste printing paste.

Images