Novel reactive brilliant blue and reactive turquoise blue continuous tie-dyeing process

Abstract

The invention discloses a novel reactive brilliant blue and reactive turquoise blue continuous tie-dyeing process, which belongs to the technical field of printing and dyeing, and comprises the following steps: preparing a cotton fabric semi-finished product, padding a dye solution, drying at 80 DEG C, padding a fixation liquid (containing a dye stabilizer), steaming at 102 DEG C for 60 seconds, washing with warm water, soaping at 95 DEG C for 3 minutes, washing with warm water and drying. The problem that color spot defective cloth is easy to appear in reactive brilliant blue and reactive turquoise blue continuous pad dyeing is solved, and the dyeing quality and efficiency are improved; by adopting a new process method and a proper reactive dye stabilizer, the dosage concentration of the reactive dye stabilizer can be conveniently and effectively adjusted, and the dyeing effect of the reactive dye is improved; the method is simple and easy to implement, can be applied to an existing dyeing production line, and does not need additional equipment and cost investment; the dye stabilizer is added into the chemical liquid in the color fixing process, so that the protection effect of the reactive dye is more durable, the problem of color point generation caused by dye condensation is avoided, the dyeing plumpness and color fastness of the cotton fabric are improved, and the quality and the rate of graded products of dyeing processing are improved.

Description

Technical Field

[0001] The invention relates to the technical field of printing and dyeing, in particular to a novel continuous tie-dyeing process of reactive brilliant blue and reactive turquoise blue. Background Art

[0002] In the textile printing and dyeing industry, reactive dyes are widely used due to their bright colors, complete color spectrum, and high color fastness. However, in the continuous pad dyeing process, especially for reactive blue or reactive turquoise blue, the problem of color spot defects often occurs. This not only affects the appearance quality of the product, but also increases the production cost and scrap rate, causing considerable troubles for textile companies.

[0003] The traditional solution is to add a polymer compound as a dye stabilizer to the reactive dye, hoping to reduce the aggregation and precipitation of the dye during the dyeing process through the encapsulation and dispersion of the polymer compound, thereby reducing the generation of color spots. However, this method has little effect in practical applications and cannot fundamentally solve the problem of color spot defective cloth.

[0004] Therefore, a more effective solution is needed to solve the problem of color spot defects in reactive brilliant blue or reactive turquoise blue continuous pad dyeing. This requires not only the properties of the dye itself and the dyeing process conditions, but also in-depth research on the properties and action mechanisms of polymer compounds, in order to develop a new type of dye stabilizer that can significantly improve the stability and dispersibility of the dye and reduce the generation of color spots. Summary of the invention

[0005] Based on the above shortcomings, the present invention provides a novel continuous tie-dyeing process for reactive brilliant blue and reactive turquoise blue. The method is simple and easy to implement and can effectively improve the dyeing quality and efficiency. The contents of the present invention are as follows: The object of the present invention is to provide a novel reactive brilliant blue and reactive turquoise blue continuous tie-dyeing process, the technical point of which is that it comprises the following steps: Step 1, immersing the semi-finished textile product in a dye solution; Step 2, based on step 1, the semi-finished textile product is subjected to infrared drying; Step 3, on the basis of step 2, the semi-finished textile product is padded in a fixing solution, wherein the fixing solution contains a dye stabilizer, and the dye stabilizer is added to the chemical solution of the fixing process in the reactive dye dyeing process, so that the dosage and concentration of the added dye stabilizer can be adjusted as needed to achieve the purpose of effective reactive dyeing; Step 4: Based on step 3, steam at 100-105°C for 50-70s and then wash with 40-60°C water; Step 5: Based on step 4, soap wash at 90-100°C for 2-4 minutes, wash with 40-60°C water and dry.

[0006] In order to better implement the above technical solution, the dye in step 1 of the textile dyeing method of the present invention is a reactive brilliant blue dye or a mixed dye of reactive brilliant blue and reactive turquoise blue.

[0007] In order to better realize the above technical solution, in the textile dyeing method of the present invention, each 1L of the dye solution contains 18-22g of dye.

[0008] In order to better implement the above technical solution, the temperature of infrared drying in step 2 of the textile dyeing method of the present invention is 70-90°C.

[0009] In order to better implement the above technical solution, in step 3 of the textile dyeing method of the present invention, each 1L of the fixing solution contains 150-250g of sodium chloride, 18-22g of sodium carbonate, 4-6g of sodium hydroxide and 8-12g of a stabilizer.

[0010] In order to better realize the above technical scheme, the stabilizer in the textile dyeing method of the present invention includes, by weight, 30-50 parts by weight of alkylnaphthalenesulfonic acid formaldehyde condensate, 20-40 parts by weight of naphthalenesulfonic acid formaldehyde condensate, 5-10 parts by weight of fatty alcohol polyoxyethylene ether and 5-10 parts by weight of ethylene glycol butyl ether.

[0011] The textile dyeing method of the present invention selects a suitable reactive dye stabilizer, and adds the dye stabilizer to the chemical liquid in the color fixing process of the reactive dye dyeing process, so that the dosage concentration of the added dye stabilizer can be adjusted according to needs to achieve the purpose of effective reactive dye. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 This is a comparison chart of dye stabilizer effect tests of Examples 1 and 2 of the present invention and Comparative Examples 1 and 2; Figure 2 The following are the color fastness test results of Example 3 of the present invention. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0014] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Example

[0015] A novel reactive brilliant blue and reactive turquoise blue continuous tie-dyeing process, characterized in that it comprises the following steps: Step 1, immersing the semi-finished textile product in a dye solution; Step 2, based on step 1, the semi-finished textile product is subjected to infrared drying; Step 3: on the basis of step 2, the semi-finished textile product is padded in a color fixing solution, wherein the color fixing solution contains a dye stabilizer; Step 4: Based on step 3, steam at 102°C for 60s and then wash with 50°C water; Step 5: Based on step 4, soap wash at 95°C for 3 minutes, wash with 50°C water and dry.

[0016] In this embodiment, the dye in step 1 is reactive brilliant blue dye KNR.

[0017] In this embodiment, each 1L of the dye solution contains 22g of dye.

[0018] The temperature of infrared drying in step 2 of this embodiment is 80°C.

[0019] In step 3 of this embodiment, each 1L of the color fixing solution contains 150g of sodium chloride, 18g of sodium carbonate, 4g of sodium hydroxide and 8g of a stabilizer.

[0020] In this embodiment, the stabilizer includes, by weight, 40 parts by weight of alkylnaphthalenesulfonic acid formaldehyde condensate, 30 parts by weight of naphthalenesulfonic acid formaldehyde condensate, 7.5 parts by weight of fatty alcohol polyoxyethylene ether and 7.5 parts by weight of ethylene glycol butyl ether. Example

[0021] A novel reactive brilliant blue and reactive turquoise blue continuous tie-dyeing process, characterized in that it comprises the following steps: Step 1, immersing the semi-finished textile product in a dye solution; Step 2, based on step 1, the semi-finished textile product is subjected to infrared drying; Step 3: on the basis of step 2, the semi-finished textile product is padded in a color fixing solution, wherein the color fixing solution contains a dye stabilizer; Step 4: Based on step 3, steam at 100°C for 50s and then wash with 40°C water; Step 5: Based on step 4, soap wash at 90°C for 2 minutes, wash with 40°C water and then dry.

[0022] In the present embodiment, the dye in step 1 is a mixed dye of reactive brilliant blue KNR and reactive turquoise blue G.

[0023] In this embodiment, each 1L of the dye solution contains 18g of dye.

[0024] The temperature of infrared drying in step 2 of this embodiment is 70°C.

[0025] In step 3 of this embodiment, each 1L of the color fixing solution contains 250g of sodium chloride, 22g of sodium carbonate, 6g of sodium hydroxide and 12g of a stabilizer.

[0026] In this embodiment, the stabilizer includes, by weight, 30 parts by weight of alkylnaphthalenesulfonic acid formaldehyde condensate, 20 parts by weight of naphthalenesulfonic acid formaldehyde condensate, 5 parts by weight of fatty alcohol polyoxyethylene ether and 5-10 parts by weight of ethylene glycol butyl ether. Example

[0027] A novel reactive brilliant blue and reactive turquoise blue continuous tie-dyeing process, characterized in that it comprises the following steps: Step 1, immersing the semi-finished textile product in a dye solution; Step 2, based on step 1, the semi-finished textile product is subjected to infrared drying; Step 3: on the basis of step 2, the semi-finished textile product is padded in a color fixing solution, wherein the color fixing solution contains a dye stabilizer; Step 4: Based on step 3, steam at 105°C for 70s and then wash with 60°C water; Step 5: Based on step 4, soap wash at 100°C for 4 minutes, wash with 60°C water and then dry.

[0028] In this embodiment, the dye in step 1 is reactive brilliant blue dye WREN.

[0029] In this embodiment, each 1L of the dye solution contains 20g of dye.

[0030] The temperature of infrared drying in step 2 of this embodiment is 90°C.

[0031] In step 3 of this embodiment, each 1L of the color fixing solution contains 200g of sodium chloride, 20g of sodium carbonate, 5g of sodium hydroxide and 10g of a stabilizer.

[0032] In this embodiment, the stabilizer includes, by weight, 30-50 parts by weight of alkylnaphthalenesulfonic acid formaldehyde condensate, 20-40 parts by weight of naphthalenesulfonic acid formaldehyde condensate, 5-10 parts by weight of fatty alcohol polyoxyethylene ether and 7.5 parts by weight of ethylene glycol butyl ether.

[0033] In Example 1-3, 20,000 meters of brilliant blue full gauze cloth were continuously pad-dyed without the problem of color spot defective cloth, the dyeing quality was guaranteed, and the production effect was significantly improved.

[0034] Comparative Example 1 Example 1 does not contain a dye stabilizer, and the rest is the same as Example 1.

[0035] Comparative Example 2 Example 2 does not contain a dye stabilizer, and the rest is the same as Example 1.

[0036] Experimental example The comparison chart of the dye stabilizer effect test of Example 1-2 and Comparative Example 1-2 is shown in Figure 1 From the above tests, it can be seen that the dye in the fixing solution without dye stabilizer is seriously condensed, and dye particles appear on the filter paper, which cannot be evenly diffused, and color spots will appear after dyeing; in the fixing solution with dye stabilizer, the dye can still be dissolved normally, the dye will not condense, can be evenly diffused on the filter paper, and can participate in the fixing chemical reaction normally.

[0037] The dyeing performance index of Example 3 was tested by pad dyeing method: Fabric: 20 S x16 S 128×60 pure cotton yarn (pre-treated by singeing, bleaching, mercerizing, etc.) Color fastness test standard: Dyeing Standard Depth Color Chart——GB / T4841.1-19841 / 1 Color fastness to washing——GB / T3921-2008 Color fastness to perspiration——GB / T3922-1995 Color fastness to rubbing——GB / T3920-2008 Color fastness to chlorinated water——GB / T8433-1998 (effective chlorine solution is 20mg / l) Color fastness to artificial light - GB / T8427-2008 (Method 3, xenon arc lamp) Test results see Figure 2 From the test data of actual application, it can be seen that the color fastness indicators of the reactive brilliant blue pad-dyed cloth surface of the present invention meet the expectations.

[0038] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A novel continuous tie-dyeing process for reactive brilliant blue and reactive turquoise blue, characterized in that: The following steps are involved: Step 1, immersing the semi-finished textile product in a dye solution; Step 2, based on step 1, the semi-finished textile product is subjected to infrared drying; Step 3: on the basis of step 2, the semi-finished textile product is padded in a color fixing solution, wherein the color fixing solution contains a dye stabilizer; Step 4: Based on step 3, steam at 100-105°C for 50-70s and then wash with 40-60°C water; Step 5: Based on step 4, soap wash at 90-100°C for 2-4 minutes, wash with 40-60°C water and dry.

2. A novel reactive brilliant blue and reactive turquoise blue continuous tie-dyeing process according to claim 1, characterized in that: The dye in step 1 is a reactive brilliant blue dye or a mixed dye of reactive brilliant blue and reactive turquoise blue.

3. A novel reactive brilliant blue and reactive turquoise blue continuous tie-dyeing process according to claim 2, characterized in that: Each 1L of the dye solution contains 18-22g of dye.

4. A novel reactive brilliant blue and reactive turquoise blue continuous tie-dyeing process according to claim 1, characterized in that: The temperature of infrared drying in step 2 is 70-90°C.

5. A novel reactive brilliant blue and reactive turquoise blue continuous tie-dyeing process according to claim 1, characterized in that: In the step 3, each 1L of the color fixing solution contains 150-250g of sodium chloride, 18-22g of sodium carbonate, 4-6g of sodium hydroxide and 8-12g of a stabilizer.

6. A novel reactive brilliant blue and reactive turquoise blue continuous tie-dyeing process according to claim 5, characterized in that: In terms of weight parts, the stabilizer includes 30-50 parts by weight of alkylnaphthalenesulfonic acid formaldehyde condensate, 20-40 parts by weight of naphthalenesulfonic acid formaldehyde condensate, 5-10 parts by weight of fatty alcohol polyoxyethylene ether and 5-10 parts by weight of ethylene glycol butyl ether.

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