Liquid dye and preparation method thereof

Abstract

A liquid dye and its preparation method. The liquid dye is primarily composed of the following raw materials in parts by weight: 0.1-1 parts of phenyl acrylic emulsion, 2-3 parts of aqueous PU resin liquid, 2-3 parts of a film-forming aid, 3-5 parts of water, 0.1-2 parts of a color fixative, and 0.1-2 parts of an aqueous color paste and / or an active color powder. The present invention also includes a method for preparing the liquid dye. The liquid dye of the present invention can rapidly form a film, quickly establish a dye pattern, and exhibit excellent anti-blooming and anti-damage properties, high color fastness, and a soft feel. The liquid dye of the present invention can be produced in a variety of colors and can be used on a variety of fabrics, surpassing the single-use nature of conventional dyes. The present invention can be prepared at room temperature using a disperser, resulting in a simple operating process, mass production, and stable results.

Description

Technical Field

[0001] The present invention relates to a dye and a preparation method thereof, in particular to a liquid dye and a preparation method thereof. Background Art

[0002] Conventional liquid dye formulations use film-forming aids that make it difficult to achieve rapid film formation in a variety of environments. They are also prone to bleeding, making patterns formed using them difficult to set. Furthermore, conventional liquid dyes generally suffer from low color fastness and poor resistance to damage, making them incompatible with DIY pattern templates and the potential for further diversification in fabric DIY designs. Currently, most dyeing processes are cumbersome, costly, and require stringent production conditions. The operating procedures are complex and the results are not very stable. There is an urgent need to develop a new liquid dye to meet market and industry demands for standardized fabric pattern dyeing. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art and provide a liquid dye with good pattern setting effect and a preparation method thereof.

[0004] The technical solution adopted by the present invention to solve the technical problem is as follows: a liquid dye mainly consists of the following raw materials in parts by weight: 0.1 to 1 parts of styrene acrylic emulsion, 2 to 3 parts of aqueous PU resin liquid, 2 to 3 parts of film-forming aid, 3 to 5 parts of water, 0.1 to 2 parts of color fixing agent, and 0.1 to 2 parts of aqueous color paste and / or active color powder.

[0005] The liquid dye of the invention can form a film quickly, the dye pattern can be quickly fixed, the dye pattern has excellent anti-blooming and anti-damage properties, high color fastness, and soft hand feel.

[0006] Preferably, the liquid dye is mainly composed of the following raw materials in parts by weight: 0.1-0.3 parts of styrene acrylic emulsion, 2-3 parts of aqueous PU resin liquid, 2-3 parts of film-forming aid, 3-5 parts of water, 0.1-0.25 parts of fixing agent, and 0.1-2 parts of aqueous color paste and / or active color powder.

[0007] Preferably, the solid content of the phenyl acrylic acid emulsion is 40% to 50%; the solid content of the aqueous PU resin liquid is 30% to 50%. Both phenyl acrylic acid emulsions and aqueous PU resin liquids are commercially available. Generally, the solid content of commercially available phenyl acrylic acid emulsions is 40% to 50%, while the solid content of aqueous PU resin liquids is 30% to 40%. These solid contents meet the requirements of the present invention.

[0008] Preferably, the aqueous PU resin liquid is one or more of DSYLB-6183 (A) unsaturated polyester resin liquid, DC191 unsaturated polyester resin liquid, and AH-1619 polyurethane resin liquid.

[0009] The water-based PU resin liquid selected is polycarbonate polyurethane resin, which has super strong water, alkali and wear resistance, excellent dry and wet rubbing resistance, high film formation, smooth hand feel, excellent film-forming properties, and can be firmly bonded. At the same time, it is cold-resistant, water-resistant, solvent-resistant and wear-resistant, and can achieve excellent anti-blooming and anti-destruction properties of dye patterns.

[0010] Preferably, the color fixing agent is one or more of PU-3980 water-based polyurethane, PU-3339 water-based polyurethane, PU-3777 water-based polyurethane, and PU-3407 water-based polyurethane.

[0011] The selected fixing agent is a water-based aliphatic polycarbonate-modified PU dispersion, which has high gloss properties and can greatly improve the color fastness of dyes on fabrics to wet treatment. It can form insoluble colored substances with most dyes, greatly improving the washing and perspiration fastness of liquid dyes, and can also help improve the sunlight fastness.

[0012] Preferably, the phenyl acrylic emulsion is one or more of R-20, RX-30, RX-20, R-90, and R-20B.

[0013] The selected phenyl acrylic emulsion has excellent water resistance, alkali resistance, salting-out resistance, and hydrolysis resistance; outstanding scrub resistance and adhesion; extremely high pigment and filler carrying capacity; compatibility with a variety of pigments and fillers, good light resistance, heat resistance, and antioxidant properties. Its high compatibility with environmental conditions can achieve stable setting of liquid dyes.

[0014] Preferably, the film-forming aid is one or more of dipropylene glycol monomethyl ether, ethyl 3-ethoxypropionate, benzyl alcohol, and dodecyl alcohol ester.

[0015] The selected film-forming agent has very good hydrolysis stability and can accommodate or bond the various dye formula components to form a film, and firmly adhere the film to the textile fibers. It combines well with water-based acrylic emulsions, and is absorbed on the emulsion particles while softening the particles, causing better fusion of the dye. In addition, the film-forming agent has a very low freezing point and does not require special treatment in winter.

[0016] The preparation method of the liquid dye of the present invention comprises the following steps:

[0017] (1) mixing water, aqueous color paste and / or active color powder and dispersing them uniformly to obtain a first mixture;

[0018] (2) mixing the first mixture with a phenyl acrylic acid emulsion and dispersing them uniformly to obtain a second mixture;

[0019] (3) mixing the second mixture with a film-forming aid and dispersing them evenly to obtain a third mixture;

[0020] (4) mixing the third mixture with an aqueous PU resin liquid and dispersing them uniformly to obtain a fourth mixture;

[0021] (5) The fourth mixture is mixed with a color fixing agent and dispersed evenly.

[0022] By adopting the above technical solution, the liquid dye of the present invention can be prepared in a simple method.

[0023] Preferably, in step (1), the mixture of water, aqueous color paste and / or active color powder is treated in a disperser at a speed of 600 to 1000 r / min for 5 to 10 minutes to be uniformly dispersed.

[0024] By adopting the above technical solution, a better dispersion effect is achieved.

[0025] Preferably, in step (2), the first mixture and the phenyl acrylic acid emulsion are treated in a disperser at a speed of 600 to 1000 r / min for 3 to 5 minutes to make them uniformly dispersed.

[0026] By adopting the above technical solution, a better dispersion effect is achieved.

[0027] Preferably, in step (3), the second mixture and the film-forming aid are treated in a disperser at a speed of 600 to 1000 r / min for 3 to 10 minutes to uniformly disperse them.

[0028] By adopting the above technical solution, a better dispersion effect is achieved.

[0029] Preferably, in step (4), the third mixture and the aqueous PU resin liquid are treated in a disperser at a speed of 600 to 1000 r / min for 5 to 10 minutes to make them uniformly dispersed.

[0030] By adopting the above technical solution, a better dispersion effect is achieved.

[0031] Preferably, in step (5), the fourth mixture and the color fixing agent are treated in a disperser at a speed of 600 to 1000 r / min for 3 to 5 minutes to be evenly dispersed.

[0032] By adopting the above technical solution, a better dispersion effect is achieved.

[0033] The effects of the components of the present invention include:

[0034] Acrylic acid emulsion: Pigment filler carrier, with good water resistance, weather resistance, alkali resistance and stain resistance, has good adhesion to textile fabrics, and can enhance the adhesion of dyes to fabrics.

[0035] Water-based PU resin liquid: In order to stabilize the dye dispersion process, the dispersed dye is wrapped by the resin, which helps to form a fluid. At the same time, it can also enhance shear force, promote dye dispersion, and provide a certain viscosity.

[0036] Film-forming aid: It helps the coating to form a film and improves its quick-drying performance. Good film-forming properties can improve the overall performance of the dye system. It can work synergistically with styrene acrylic emulsion to further accelerate the film-forming speed and anti-fouling properties.

[0037] Fixing agent: The anionic groups in the fixing agent molecules combine with the cationic groups in the structural characteristics of ionic dyes through ionic bonds, so that the dye and the fixing agent form an insoluble lake. At the same time, it can cooperate with the film-forming auxiliary agent to improve its film-forming color fastness. The structural characteristic groups of the dye-affinity on the fixing agent molecules can generate hydrogen bonds and van der Waals forces between the fixing agent and the dye, which can greatly improve the fixing strength of the fixing agent and thus improve the color fastness.

[0038] Acrylic acid emulsions offer excellent water resistance, weather resistance, alkali resistance, and stain resistance. They also exhibit excellent adhesion to textile fabrics and can enhance the adhesion of dyes to fabrics. When used in conjunction with aqueous PU resin, they exhibit even superior adhesion and help enhance the fluidity and wettability of the molecular chains within the acrylic acid emulsion's polymer structure on the substrate surface. This allows for close contact between the textile pigment and the textile, resulting in high adhesion and significantly improved wash fastness. Aqueous PU resin stabilizes the pigment dispersion process, encapsulating the dispersed pigment and helping to form a fluid. When used in conjunction with acrylic acid emulsion, this stabilizes the fluid while also enhancing shear forces, effectively reducing the liquid's surface tension. The acrylic acid emulsion imparts enhanced adhesion to the fluid. Furthermore, because the aqueous PU resin has a high effective hydroxyl content and excellent water, acid, and alkali resistance, the synergistic effect significantly improves both adhesion and wash fastness.

[0039] Film-forming agents have excellent hydrolytic stability and can accommodate or bond the various dye formulation components to form a film that firmly adheres to textile fibers. Especially when combined with a fixing agent, they are absorbed into the emulsion particles while softening them, promoting better fusion of the dye. The fixing agent is a water-based, aliphatic polycarbonate-modified PU dispersion with high gloss. When combined with the film-forming agent, it significantly improves the wet-treatment fastness of the dye on fabrics. It forms insoluble colored substances with most dyes, significantly enhancing the liquid dye's wash and perspiration resistance, while also aiding in improving light fastness.

[0040] The liquid dye of the present invention is formulated by introducing water-based PU resin, styrene acrylic emulsion, and film-forming aids, which are uniformly dispersed and mixed according to a certain proportion of components and under specific feeding process conditions, so that the liquid dye can form a film quickly, the dye pattern can be quickly shaped, and it has excellent anti-blooming and anti-destruction properties, high color fastness, and a soft feel. The liquid dye of the present invention can be prepared using a disperser at room temperature, has a simple operating process, can be mass-produced, and has a stable effect. In addition, the liquid dye of the present invention is not limited to a certain color, but can be a variety of different colors, nor is it limited to a certain fabric, but is applicable to all textiles in the entire fabric industry, breaking through the single use of conventional dyes; the formula of the present invention is environmentally friendly, and the matching DIY pattern template can further realize the diversification of fabric DIY design.

[0041] Beneficial effects of the present invention:

[0042] (1) The liquid dye of the present invention can form a film quickly, the dye pattern can be quickly fixed, has excellent anti-blooming and anti-damage properties, high color fastness, and soft feel;

[0043] (2) The liquid dye of the present invention can be in various colors and can be used for various fabrics, breaking through the single use of conventional dyes;

[0044] (3) The present invention can be prepared using a disperser at room temperature, has a simple operation process, can be mass-produced, and has stable effects;

[0045] (4) The formula of the present invention is environmentally friendly. DETAILED DESCRIPTION

[0046] The present invention is described in detail below with reference to specific examples. The following examples and comparative examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any manner. It should be noted that a person of ordinary skill in the art may make several variations and improvements without departing from the present invention. These all fall within the scope of protection of the present invention.

[0047] The aqueous PU resin liquid used in each embodiment and comparative example was purchased from Guangzhou Yihua Digital Technology Co., Ltd.

[0048] Unless otherwise specified, the raw materials used in the examples of the present invention were obtained through conventional commercial channels.

[0049] Example 1

[0050] The liquid dye in this embodiment is a sky blue liquid dye, which is composed of the following raw materials in parts by weight: 0.2 parts of styrene acrylic emulsion, 2.5 parts of aqueous PU resin liquid, 3 parts of film-forming aid, 5 parts of water, 0.1 parts of color fixing agent, and 0.2 parts of aqueous color paste and / or active color powder.

[0051] The phenyl acrylic acid emulsion is R-20 (solid content 48.5%).

[0052] The aqueous PU resin liquid is DSYLB-6183 (A) unsaturated polyester resin liquid (solid content 35%).

[0053] The film-forming aid is lauryl alcohol ester.

[0054] The fixing agent is PU-3407 water-based polyurethane.

[0055] The preparation method of the liquid dye of this embodiment comprises the following steps:

[0056] (1) Weighing water and aqueous color paste / active color powder according to the weight ratio, mixing them, setting the speed in a disperser to 800 rpm for 5 minutes, to obtain a first mixture;

[0057] (2) Weighing the acrylic emulsion according to the weight fraction ratio, adding the phenyl acrylic emulsion according to the weight fraction ratio to the first mixture, setting the speed of the disperser to 600 r / min and the time for 3 minutes to obtain a second mixture;

[0058] (3) Weighing the film-forming aid according to the weight fraction ratio, adding the film-forming aid to the second mixture according to the weight fraction ratio, setting the speed to 600 r / min, and the time for 3 min to obtain a third mixture;

[0059] (4) Weighing the aqueous PU resin liquid according to the weight fraction ratio, adding the aqueous PU resin liquid to the third mixture according to the weight fraction ratio, setting the speed to 600 r / min, and the time for 5 min to obtain a fourth mixture;

[0060] (5) Weigh the resin-type color fixing agent according to the weight fraction ratio, add the resin-type color fixing agent to the fourth mixture according to the weight fraction ratio, set the speed to 600 / min, and the time to 3 minutes to obtain a sky blue liquid dye.

[0061] Comparative Example 1

[0062] The liquid dye formulation and preparation method of this comparative example are basically the same as those of Example 1, except that no phenyl acrylic acid emulsion is used.

[0063] The liquid dye of this comparative example is a sky blue liquid dye, which is composed of the following raw materials in parts by weight: 0 parts of styrene acrylic emulsion, 2.5 parts of aqueous PU resin liquid, 3 parts of film-forming aid, 5 parts of water, 0.1 parts of color fixing agent, and 0.2 parts of aqueous color paste and / or active color powder.

[0064] The aqueous PU resin liquid is DSYLB-6183 (A) unsaturated polyester resin liquid (solid content 35%).

[0065] The film-forming aid is lauryl alcohol ester.

[0066] The fixing agent is PU-3407 water-based polyurethane.

[0067] The preparation method of the liquid dye of this embodiment comprises the following steps:

[0068] (1) Weighing water and aqueous color paste / active color powder according to the weight ratio, mixing them, setting the speed in a disperser to 800 rpm for 5 minutes, to obtain a first mixture;

[0069] (2) rotating speed 600 r / min, stirring time 3 min to obtain a second mixture;

[0070] (3) Weighing the film-forming aid according to the weight fraction ratio, adding the film-forming aid to the second mixture according to the weight fraction ratio, setting the speed to 600 / min, and the time to 3 min to obtain a third mixture;

[0071] (4) Weighing the aqueous PU resin liquid according to the weight fraction ratio, adding the aqueous PU resin liquid to the third mixture according to the weight fraction ratio, setting the speed to 600 / min, and the time for 5 minutes to obtain a fourth mixture;

[0072] (5) Weigh the resin-type color fixing agent according to the weight fraction ratio, add the resin-type color fixing agent to the fourth mixture according to the weight fraction ratio, set the speed to 600 r / min, and the time to 3 minutes to obtain a sky blue liquid dye.

[0073] Comparative Example 2

[0074] The liquid dye formula and preparation method of this comparative example are basically the same as those of Example 1, except that no aqueous PU resin liquid is used.

[0075] The liquid dye of this comparative example is a sky blue liquid dye, which is composed of the following raw materials in parts by weight: 0.2 parts of phenyl acrylic emulsion, 0 parts of aqueous PU resin liquid, 3 parts of film-forming aid, 5 parts of water, 0.1 parts of color fixing agent, and 0.2 parts of aqueous color paste and / or active color powder.

[0076] The phenyl acrylic acid emulsion is R-20 (solid content 48.5%).

[0077] The film-forming aid is lauryl alcohol ester.

[0078] The fixing agent is PU-3407 water-based polyurethane.

[0079] The preparation method of the liquid dye of this embodiment comprises the following steps:

[0080] (1) Weighing water and aqueous color paste / active color powder according to the weight ratio, mixing them, setting the speed in a disperser to 800 rpm for 5 minutes, to obtain a first mixture;

[0081] (2) Weighing the acrylic emulsion according to the weight fraction ratio, adding the phenyl acrylic emulsion according to the weight fraction ratio to the first mixture, setting the speed of the disperser to 600 r / min and the time for 3 minutes to obtain a second mixture;

[0082] (3) Weighing the film-forming aid according to the weight fraction ratio, adding the film-forming aid to the second mixture according to the weight fraction ratio, setting the speed to 600 r / min, and the time for 3 min to obtain a third mixture;

[0083] (4) setting the rotation speed to 600 r / min and the stirring time to 5 min to obtain a fourth mixture;

[0084] (5) Weigh the resin-type color fixing agent according to the weight fraction ratio, add the resin-type color fixing agent to the fourth mixture according to the weight fraction ratio, set the speed to 600 / min, and the time to 3 minutes to obtain a sky blue liquid dye.

[0085] Example 2

[0086] The liquid dye in this embodiment is a pink liquid dye, which is composed of the following raw materials in parts by weight: 0.1 parts of styrene acrylic emulsion, 2 parts of aqueous PU resin liquid, 2 parts of film-forming aid, 5 parts of water, 0.15 parts of color fixing agent, and 0.1 parts of aqueous color paste and / or active color powder.

[0087] The phenyl acrylic acid emulsion is R-20 (solid content 48.5%).

[0088] The aqueous PU resin liquid is DSYLB-6183 (A) unsaturated polyester resin liquid (solid content 35%).

[0089] The film-forming aid is lauryl alcohol ester.

[0090] The fixing agent is PU-3407 water-based polyurethane.

[0091] The preparation method of the liquid dye of this embodiment comprises the following steps:

[0092] (1) Weighing water, aqueous color paste / active color powder according to the weight ratio and mixing them, setting the speed of the disperser to 700 r / min and the time for 6 minutes to obtain a first mixture;

[0093] (2) Weighing the acrylic emulsion according to the weight fraction ratio, adding the phenyl acrylic emulsion according to the weight fraction ratio to the first mixture, setting the speed of the disperser to 600 r / min and the time for 3 minutes to obtain a second mixture;

[0094] (3) Weighing the film-forming aid according to the weight fraction ratio, adding the film-forming aid to the second mixture according to the weight fraction ratio, setting the speed to 600 / min, and the time to 3 min to obtain a third mixture;

[0095] (4) Weighing the aqueous PU resin liquid according to the weight fraction ratio, adding the aqueous PU resin liquid to the third mixture according to the weight fraction ratio, setting the speed to 600 / min, and the time for 5 minutes to obtain a fourth mixture;

[0096] (5) Weigh the resin-type color fixing agent according to the weight fraction ratio, add the resin-type color fixing agent to the fourth mixture according to the weight fraction ratio, set the speed to 600 / min, and the time to 4 minutes to obtain a pink liquid dye.

[0097] Comparative Example 3

[0098] The liquid dye formulation and preparation method of this comparative example are basically the same as those of Example 2, except that no film-forming aid is used.

[0099] The liquid dye of this comparative example is a pink liquid dye, which is composed of the following raw materials in parts by weight: 0.1 parts of styrene acrylic emulsion, 2 parts of aqueous PU resin liquid, 0 parts of film-forming aid, 5 parts of water, 0.15 parts of color fixing agent, and 0.1 parts of aqueous color paste and / or active color powder.

[0100] The phenyl acrylic acid emulsion is R-20 (solid content 48.5%).

[0101] The aqueous PU resin liquid is DSYLB-6183 (A) unsaturated polyester resin liquid (solid content 35%).

[0102] The fixing agent is PU-3407 water-based polyurethane.

[0103] The preparation method of the liquid dye of this embodiment comprises the following steps:

[0104] (1) Weighing water, aqueous color paste / active color powder according to the weight ratio and mixing them, setting the speed of the disperser to 700 r / min and the time for 6 minutes to obtain a first mixture;

[0105] (2) Weighing the acrylic emulsion according to the weight fraction ratio, adding the phenyl acrylic emulsion according to the weight fraction ratio to the first mixture, setting the speed of the disperser to 600 r / min and the time for 3 minutes to obtain a second mixture;

[0106] (3) setting the rotation speed to 600 / min and the time to 3 min to obtain the third mixture;

[0107] (4) Weighing the aqueous PU resin liquid according to the weight fraction ratio, adding the aqueous PU resin liquid to the third mixture according to the weight fraction ratio, setting the speed to 600 / min, and the time for 6 minutes to obtain a fourth mixture;

[0108] (5) Weigh the resin-type color fixing agent according to the weight fraction ratio, add the resin-type color fixing agent to the fourth mixture according to the weight fraction ratio, set the speed to 600 / min, and the time to 4 minutes to obtain a pink liquid dye.

[0109] Comparative Example 4

[0110] The liquid dye formula and preparation method of this comparative example are basically the same as those of Example 2, except that no fixing agent is used.

[0111] The liquid dye of this comparative example is a pink liquid dye, which is composed of the following raw materials in parts by weight: 0.1 parts of styrene acrylic emulsion, 2 parts of aqueous PU resin liquid, 2 parts of film-forming aid, 5 parts of water, 0 parts of fixing agent, and 0.1 parts of aqueous color paste and / or active color powder.

[0112] The phenyl acrylic acid emulsion is R-20 (solid content 48.5%).

[0113] The aqueous PU resin liquid is DSYLB-6183 (A) unsaturated polyester resin liquid (solid content 35%).

[0114] The film-forming aid is lauryl alcohol ester.

[0115] The preparation method of the liquid dye of this embodiment comprises the following steps:

[0116] (1) Weighing water, aqueous color paste / active color powder according to the weight ratio and mixing them, setting the speed of the disperser to 700 r / min and the time for 6 minutes to obtain a first mixture;

[0117] (2) Weighing the acrylic emulsion according to the weight fraction ratio, adding the phenyl acrylic emulsion according to the weight fraction ratio to the first mixture, setting the speed of the disperser to 600 r / min and the time for 3 minutes to obtain a second mixture;

[0118] (3) Weighing the film-forming aid according to the weight fraction ratio, adding the film-forming aid to the second mixture according to the weight fraction ratio, setting the speed to 600 / min, and the time to 3 min to obtain a third mixture;

[0119] (4) Weighing the aqueous PU resin liquid according to the weight fraction ratio, adding the aqueous PU resin liquid to the third mixture according to the weight fraction ratio, setting the speed to 600 / min, and the time for 6 minutes to obtain a fourth mixture;

[0120] (5) Set the speed to 600 / min and the time to 4 min to obtain pink liquid dye.

[0121] Example 3

[0122] The liquid dye in this embodiment is a red liquid dye, which is mainly composed of the following raw materials in parts by weight: 0.2 parts of styrene acrylic emulsion, 2 parts of aqueous PU resin liquid, 3 parts of film-forming aid, 5 parts of water, 0.15 parts of color fixing agent, and 0.15 parts of aqueous color paste and / or active color powder.

[0123] The phenyl acrylic acid emulsion is R-20 (solid content 48.5%).

[0124] The aqueous PU resin liquid is DSYLB-6183 (A) unsaturated polyester resin liquid (solid content 35%).

[0125] The film-forming aid is lauryl alcohol ester.

[0126] The fixing agent is PU-3407 water-based polyurethane.

[0127] The preparation method of the liquid dye of this embodiment comprises the following steps:

[0128] (1) Weighing water and aqueous color paste / active color powder according to the weight ratio, mixing them, setting the speed in a disperser to 800 rpm for 7 minutes, to obtain a first mixture;

[0129] (2) Weighing the acrylic emulsion according to the weight fraction ratio, adding the phenyl acrylic emulsion according to the weight fraction ratio to the first mixture, setting the speed of the disperser to 650 r / min, and the time for 4 minutes to obtain a second mixture;

[0130] (3) Weighing the film-forming aid according to the weight fraction ratio, adding the film-forming aid to the second mixture according to the weight fraction ratio, setting the speed to 650 / min, and the time to 4 min to obtain a third mixture;

[0131] (4) Weighing the aqueous PU resin liquid according to the weight fraction ratio, adding the aqueous PU resin liquid to the third mixture according to the weight fraction ratio, setting the speed to 650 / min, and the time for 5 minutes to obtain a fourth mixture;

[0132] (5) Weigh the resin-type color fixing agent according to the weight fraction ratio, add the resin-type color fixing agent to the fourth mixture according to the weight fraction ratio, set the speed to 650 / min, and the time for 4 minutes to obtain an orange liquid dye.

[0133] Example 4

[0134] The liquid dye in this embodiment is an orange liquid dye, which is mainly composed of the following raw materials in parts by weight: 0.2 parts of styrene acrylic emulsion, 2.5 parts of aqueous PU resin liquid, 2.5 parts of film-forming aid, 5 parts of water, 0.1 parts of color fixing agent, and 2 parts of aqueous color paste and / or active color powder.

[0135] The phenyl acrylic acid emulsion is R-20 (solid content 48.5%).

[0136] The aqueous PU resin liquid is DSYLB-6183 (A) unsaturated polyester resin liquid (solid content 35%).

[0137] The film-forming aid is lauryl alcohol ester.

[0138] The fixing agent is PU-3407 water-based polyurethane.

[0139] The preparation method of the liquid dye of this embodiment comprises the following steps:

[0140] (1) Weighing water and aqueous color paste / active color powder according to the weight ratio, mixing them, setting the speed of the disperser to 800 rpm for 8 minutes, and obtaining a first mixture;

[0141] (2) Weighing the acrylic emulsion according to the weight fraction ratio, adding the phenyl acrylic emulsion according to the weight fraction ratio to the first mixture, setting the speed of the disperser to 700 r / min, and the time for 4 minutes to obtain a second mixture;

[0142] (3) Weighing the film-forming aid according to the weight fraction ratio, adding the film-forming aid to the second mixture according to the weight fraction ratio, setting the speed to 700 / min, and the time to 4 min to obtain a third mixture;

[0143] (4) Weighing the aqueous PU resin liquid according to the weight fraction ratio, adding the aqueous PU resin liquid to the third mixture according to the weight fraction ratio, setting the speed to 700 / min, and the time for 5 minutes to obtain a fourth mixture;

[0144] (5) Weigh the resin-type color fixing agent according to the weight fraction ratio, add the resin-type color fixing agent to the fourth mixture according to the weight fraction ratio, set the speed to 600 / min, and the time to 4 minutes to obtain an orange liquid dye.

[0145] Example 5

[0146] The liquid dye in this embodiment is a yellow liquid dye, which is mainly composed of the following raw materials in parts by weight: 0.1 parts of styrene acrylic emulsion, 2 parts of aqueous PU resin liquid, 2.5 parts of film-forming aid, 5 parts of water, 0.1 parts of color fixing agent, and 0.1 parts of aqueous color paste and / or active color powder.

[0147] The phenyl acrylic acid emulsion is R-20.

[0148] The aqueous PU resin liquid is DSYLB-6183 (A) unsaturated polyester resin liquid (solid content 35%).

[0149] The film-forming aid is lauryl alcohol ester.

[0150] The fixing agent is PU-3407 water-based polyurethane.

[0151] The preparation method of the liquid dye of this embodiment comprises the following steps:

[0152] (1) Weighing water and aqueous color paste / active color powder according to the weight ratio and mixing them, setting the speed of the disperser to 650 r / min and the time for 7 minutes to obtain a first mixture;

[0153] (2) Weighing the acrylic emulsion according to the weight fraction ratio, adding the phenyl acrylic emulsion according to the weight fraction ratio to the first mixture, setting the speed of the disperser to 600 r / min and the time for 3 minutes to obtain a second mixture;

[0154] (3) Weighing the film-forming aid according to the weight fraction ratio, adding the film-forming aid to the second mixture according to the weight fraction ratio, setting the speed to 600 / min, and the time to 3 min to obtain a third mixture;

[0155] (4) Weighing the aqueous PU resin liquid according to the weight fraction ratio, adding the aqueous PU resin liquid to the third mixture according to the weight fraction ratio, setting the speed to 600 / min, and the time for 5 minutes to obtain a fourth mixture;

[0156] (5) Weigh the resin-type color fixing agent according to the weight fraction ratio, add the resin-type color fixing agent to the fourth mixture according to the weight fraction ratio, set the speed to 600 / min, and the time to 4 minutes to obtain a yellow liquid dye.

[0157] Example 6

[0158] The liquid dye in this embodiment is a green liquid dye, which is mainly composed of the following raw materials in parts by weight: 0.1 parts of styrene acrylic emulsion, 2 parts of aqueous PU resin liquid, 3 parts of film-forming aid, 5 parts of water, 0.1 parts of color fixing agent, and 2 parts of aqueous color paste and / or active color powder.

[0159] The phenyl acrylic acid emulsion is R-20.

[0160] The aqueous PU resin liquid is DSYLB-6183 (A) unsaturated polyester resin liquid (solid content 35%).

[0161] The film-forming aid is lauryl alcohol ester.

[0162] The fixing agent is PU-3407 water-based polyurethane.

[0163] The preparation method of the liquid dye of this embodiment comprises the following steps:

[0164] (1) Weighing water and aqueous color paste / active color powder according to the weight ratio, mixing them, setting the speed of the disperser to 800 rpm for 8 minutes, and obtaining a first mixture;

[0165] (2) Weighing the acrylic emulsion according to the weight fraction ratio, adding the phenyl acrylic emulsion according to the weight fraction ratio to the first mixture, setting the speed of the disperser to 700 r / min and the time for 3 minutes to obtain a second mixture;

[0166] (3) Weighing the film-forming aid according to the weight fraction ratio, adding the film-forming aid to the second mixture according to the weight fraction ratio, setting the speed to 700 / min, and the time to 3 min to obtain a third mixture;

[0167] (4) Weighing the aqueous PU resin liquid according to the weight fraction ratio, adding the aqueous PU resin liquid to the third mixture according to the weight fraction ratio, setting the speed to 600 / min, and the time for 5 minutes to obtain a fourth mixture;

[0168] (5) Weigh the resin-type color fixing agent according to the weight fraction ratio, add the resin-type color fixing agent to the fourth mixture according to the weight fraction ratio, set the speed to 600 / min, and the time to 4 minutes to obtain a green liquid dye.

[0169] Example 7

[0170] The liquid dye in this embodiment is a purple liquid dye, which is mainly composed of the following raw materials in parts by weight: 0.15 parts of styrene acrylic emulsion, 3 parts of aqueous PU resin liquid, 3 parts of film-forming aid, 5 parts of water, 0.1 parts of color fixing agent, and 2 parts of aqueous color paste and / or active color powder.

[0171] The phenyl acrylic acid emulsion is R-20.

[0172] The aqueous PU resin liquid is DSYLB-6183 (A) unsaturated polyester resin liquid (solid content 35%).

[0173] The film-forming aid is lauryl alcohol ester.

[0174] The fixing agent is PU-3407 water-based polyurethane.

[0175] The preparation method of the liquid dye of this embodiment comprises the following steps:

[0176] (1) Weighing water and aqueous color paste / active color powder according to the weight ratio, mixing them, setting the speed of the disperser to 850 rpm for 7 minutes, to obtain a first mixture;

[0177] (2) Weighing the acrylic emulsion according to the weight fraction ratio, adding the phenyl acrylic emulsion according to the weight fraction ratio to the first mixture, setting the speed of the disperser to 650 r / min and the time for 3 minutes to obtain a second mixture;

[0178] (3) Weighing the film-forming aid according to the weight fraction ratio, adding the film-forming aid to the second mixture according to the weight fraction ratio, setting the speed to 600 / min, and the time to 4 min to obtain a third mixture;

[0179] (4) Weighing the aqueous PU resin liquid according to the weight fraction ratio, adding the aqueous PU resin liquid to the third mixture according to the weight fraction ratio, setting the speed to 600 / min, and the time for 5 minutes to obtain a fourth mixture;

[0180] (5) Weigh the resin-type color fixing agent according to the weight fraction ratio, add the resin-type color fixing agent to the fourth mixture according to the weight fraction ratio, set the speed to 600 / min, and the time to 4 minutes to obtain a purple liquid dye.

[0181] Product Testing

[0182] The liquid dyes of Examples 1 to 7 and Comparative Examples 1 to 4 were used in combination with pattern templates to form dye patterns on fabrics to test the dyeing effect. The steps are as follows:

[0183] 1. Put the dye into the spray bottle and shake well before use;

[0184] 2. Prepare fabrics and pattern templates;

[0185] 3. Spray liquid on the fabric through the template, remove the template, and you can get the pattern;

[0186] 4. Leave the dyed pattern to dry for 12 hours, then heat press at 160-180 degrees to obtain the finished product.

[0187] The fabrics used for the dyes in Test Example 1, Comparative Example 1, Example 2, and Comparative Example 2 are pure cotton fabrics; the fabrics used for the dyes in Test Example 3 and Comparative Example 3 are linen fabrics; the fabrics used for the dyes in Test Example 4 and Comparative Example 4 are modal fabrics; and the fabrics used for the dyes in Test Examples 5, 6, and 7 are silk fabrics.

[0188] The dyeing effects of each liquid dye are shown in Table 1.

[0189] Table 1 Dyeing effects of liquid dyes of Examples 1 to 7 and Comparative Examples 1 to 4

[0190]

[0191]

[0192] Examples 1 to 7 illustrate that the liquid dye of the present invention can be a dye of various colors and has good dyeing effects on various fabrics.

[0193] Comparative Example 1 does not use a styrene acrylic acid emulsion, and Comparative Example 2 does not use an aqueous PU resin solution. As can be seen from Example 1 and Comparative Examples 1-2, omitting either the styrene acrylic acid emulsion or the aqueous PU resin solution results in poor pattern clarity, demonstrating a synergistic effect between the styrene acrylic acid emulsion and the aqueous PU resin solution. Comparative Example 3 does not use a film-forming aid, and Comparative Example 4 does not use a color fixative. As can be seen from Example 2 and Comparative Examples 3-4, omitting either the film-forming aid or the color fixative reduces the pattern's wash fastness and film-forming speed, demonstrating a synergistic effect between the film-forming aid and the color fixative.

Claims

1. A liquid dye, characterized in that The main components are the following raw materials in parts by weight: 0.1-1 parts of phenyl acrylic emulsion, 2-3 parts of water-based PU resin liquid, 2-3 parts of film-forming aid, 3-5 parts of water, 0.1-2 parts of color fixing agent, 0.1-2 parts of water-based color paste and / or active color powder; The phenyl acrylic acid emulsion is R-20; The aqueous PU resin liquid is DSYLB-6183 (A) unsaturated polyester resin liquid; The film-forming aid is lauryl alcohol ester; The fixing agent is PU-3407 water-based polyurethane.

2. The method for preparing a liquid dye according to claim 1, wherein The following steps are involved: (1) Mixing water, water-based color paste and / or active color powder and dispersing them evenly to obtain a first mixture; (2) mixing the first mixture with the phenyl acrylic acid emulsion and dispersing them evenly to obtain a second mixture; (3) mixing the second mixture with a film-forming aid and dispersing them evenly to obtain a third mixture; (4) mixing the third mixture with an aqueous PU resin liquid and dispersing them evenly to obtain a fourth mixture; (5) The fourth mixture is mixed with a color fixing agent and dispersed evenly.

3. The method for preparing a liquid dye according to claim 2, wherein In step (1), the mixture of water, aqueous color paste and / or active color powder is processed in a disperser at a speed of 600-1000 r / min for 5-10 minutes to be uniformly dispersed.

4. The method for preparing a liquid dye according to claim 2 or 3, wherein: In step (2), the first mixture and the phenyl acrylic acid emulsion are treated in a disperser at a speed of 600-1000 r / min for 3-5 minutes to make them uniformly dispersed.

5. The method for preparing a liquid dye according to claim 2 or 3, wherein: In step (3), the second mixture and the film-forming aid are treated in a disperser at a speed of 600-1000 r / min for 3-10 min to make them uniformly dispersed.

6. The method for preparing a liquid dye according to claim 2 or 3, wherein: In step (4), the third mixture and the aqueous PU resin liquid are treated in a disperser at a speed of 600-1000 r / min for 5-10 minutes to make them uniformly dispersed.

7. The method for preparing a liquid dye according to claim 2 or 3, wherein: In step (5), the fourth mixture and the color fixing agent are processed in a disperser at a speed of 600-1000 r / min for 3-5 minutes to make them uniformly dispersed.

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