A textile pigment and its preparation method and application

Abstract

The present invention provides a textile pigment and its preparation method and application. The preparation method includes step S1, respectively weighing an aqueous acrylic emulsion, a color paste, a resin liquid, a film-forming agent, a polyether block amino silicone oil, a wetting agent, a thickener dispersant, and water in required parts by weight, and mixing them to obtain a first mixture; step S2, adding a dispersant in required parts by weight to the first mixture, and mixing them to obtain a second mixture; step S3, adding 1-3 parts by weight of a surfactant to the second mixture, and mixing them to obtain a textile pigment. The textile pigment is obtained by the preparation method. The application of the textile pigment is the application of the textile pigment in textile fabrics, shoes, gypsum, leather goods, and wood. The preparation method of the present invention is simple in process, can be mass-produced, and has good antibacterial effect, softness, color fastness to washing, and continuity of painting lines.

Description

Technical Field

[0001] The present invention relates to the technical field of textile pigments, and in particular to a textile pigment and a preparation method and application thereof. Background Art

[0002] Traditional dyed fabrics often suffer from defects such as insufficient breathability, rough feel, weak dye fastness, easy cracking, and difficulty in demonstrating antibacterial and antimicrobial properties. As people's quality of life improves, traditional textile dyes can no longer meet their demands for comfortable, beautiful, healthy, and environmentally friendly textiles.

[0003] The main reason for the defects of the above-mentioned dyed fabrics is that silicone oil is mostly used in traditional textile pigment formulas, which easily leads to defects in the dyed fabrics caused by demulsification, oil bleaching, and roller sticking.

[0004] In addition, the current production processes of most textile pigments are complex and tedious, with high costs, strict production conditions and low stability of the effects.

[0005] In summary, there is an urgent need for a textile pigment and a preparation method and application thereof to solve the problems existing in the traditional textile pigment formulation due to the selection of silicone oil and the problems existing in its production process. Summary of the Invention

[0006] The present invention aims to provide a textile pigment and a preparation method and application thereof. The specific technical scheme is as follows:

[0007] In a first aspect, the present invention provides a method for preparing a textile pigment, comprising the following steps:

[0008] Step S1, weighing 10-20 parts of aqueous acrylic emulsion, 5-20 parts of color paste, 5-10 parts of resin liquid, 3-5 parts of film-forming agent, 0.5-2 parts of polyether block amino silicone oil, 5-10 parts of wetting agent, 2-6 parts of thickener, 1-2 parts of dispersant and 100-115 parts of water in required parts by weight, and mixing them to obtain a first mixture;

[0009] The polyether block amino silicone oil is K-809 polyether block amino silicone oil. The polysiloxane segments in this K-809 polyether block amino silicone oil soften fabrics, while the polyether segments impart excellent hydrophilicity to the fabric. Unlike conventional amino silicone oils, textile pigments made with K-809 polyether block amino silicone oil avoid demulsification, oil bleaching, and roller sticking, resulting in excellent thermal stability and shear resistance. The pigment spreads and penetrates the textile surface, smoothing out uneven, uneven, and burr-prone surfaces, resulting in a smooth, comfortable, and environmentally friendly surface.

[0010] Step S2, adding 1-3 parts by weight of a dispersant to the first mixture, and mixing the mixture to obtain a second mixture;

[0011] Step S3, adding 1-3 parts by weight of a surfactant to the second mixture, and mixing the mixture to obtain a textile pigment;

[0012] The surfactant includes any one of an imidazoline surfactant, a betaine surfactant, an ammonium oxide surfactant and a quaternary ammonium salt organic silicon gemini surfactant.

[0013] The present invention adopts a specific surfactant as an excellent leveling agent, which has a wetting effect, can effectively prevent color spots and dispersion, and has low toxicity. It can provide antibacterial effects for textile pigments and fabrics, especially against Gram-positive bacteria and some filamentous bacteria. It is convenient to extend the application of the prepared textile pigment to more widely effectively improve the antibacterial and antimicrobial properties of materials such as textile fabrics, shoes, gypsum, leather goods, and wood.

[0014] Optionally, the wetting agent includes any one of dimethyl sulfoxide, docosanol, lauryl alcohol and propylene glycol. The wetting agent used in the present invention has a strong affinity with the pigment in the color paste, can fully dissolve the insoluble and water-insoluble pigment, improve the wetting and dispersion effect of the pigment, and is more conducive to wetting, thereby improving the utilization rate of the dye; its good permeability and diffusivity can make the dye penetrate into the interior of the cellulose material more quickly, improve the dyeing effect, and make the absorption rate of the dye within a reasonable range, prevent the concentration of the dye from changing too much during the dyeing process, and make the color of the dyed fabric more vivid and stable.

[0015] Optionally, the aqueous acrylic emulsion includes any one of R-20, RX-30, RX-20, R-90, and R-20B. The aqueous acrylic emulsion used in the present invention has a surface containing hydrophobic groups and has excellent water and moisture resistance, so the pigment will not crack due to water penetration after repeated washing.

[0016] Optionally, the resin liquid includes any one of amino silicone resin liquid CS-2000, polyamide-imide resin liquid RI-925, polysiloxane resin liquid PL-2075, and acrylic resin liquid SL112. The resin liquid employed in the present invention stabilizes the pigment dispersion process, encapsulating the dispersed pigment and facilitating fluid formation. It also enhances shear force, promotes pigment dispersion, and provides a certain degree of viscosity.

[0017] Optionally, the film-forming agent includes any one of dipropylene glycol monomethyl ether, ethyl 3-ethoxypropionate, benzyl alcohol, and alcohol ester twelve. The film-forming agent used in the present invention has excellent hydrolytic stability, can accommodate or bond various raw material components to form a film, and firmly adhere the film to the textile fiber. It is particularly well combined with aqueous acrylic emulsion, is absorbed on the emulsion particles, and softens the particles, causing better fusion when dyeing. In addition, the film-forming agent has a very low freezing point and does not require special treatment in winter.

[0018] Optionally, the thickener is any one of ZY-608 acrylic thickener, ZY-60 acrylic alkali-resistant thickener, DH-7216S nonionic thickener, PEG-150 distearate thickener, and R1001 thickener. The thickener used in the present invention has good water retention and thickening and leveling effects, can improve color vividness, has good compatibility, does not cause delamination and spots after use, and can ensure good anti-splashing performance during dye use, ensures excellent performance of pigment from grid retention to fabric penetration, ensures transferability, and ensures that the binding force between the dye and the pigment and the fabric is greater than the affinity between the thickener, and the thickener does not form a gel on the fabric surface and does not undergo chemical changes during color fixation.

[0019] Optionally, the dispersant includes any one of dispersant MF, dispersant CNF, dispersant NNO, and dispersant 1101. The dispersant used in the present invention helps to accelerate the wetting process, reduce viscosity, increase the pigment loading in the color paste, maintain the dispersion and stability of the pigment particles, improve the gloss and flatness of the pigment, increase the leveling effect and gloss, and prevent floating and blooming.

[0020] Optionally, in steps S1-S3, the stirring parameters for controlling the mixing are a stirring speed of 600-1000 r / min and a stirring time of 3-10 min to ensure that the raw materials are fully mixed.

[0021] In a second aspect, the present invention provides a textile pigment prepared using the textile pigment preparation method.

[0022] In a third aspect, the present invention provides an application of a textile pigment, which employs the textile pigment in textile fabrics, shoes, plaster, leather goods and wood.

[0023] The application of the technical solution of the present invention has at least the following beneficial effects:

[0024] (1) In the preparation method of the textile pigment of the present invention, the steps S1-S3 are used to mix the raw materials according to the required weight parts to obtain the textile pigment. The preparation method has a simple operation process, can be mass-produced, and has a very stable effect. Among them, the polysiloxane segment in the specific K-809 polyether block amino silicone oil used in the present invention softens the fabric, and the polyether segment gives the fabric good hydrophilicity. Unlike traditional amino silicone oils, the textile pigment made from K-809 polyether block amino silicone oil does not have the fabric defect problems caused by demulsification, oil bleaching, and roller sticking. The pigment has good thermal stability and shear resistance, can spread and penetrate on the surface of the textile, fill the uneven spots and burrs on the fiber surface, form a smooth fabric surface, feel smooth, do not yellow, and is a green and environmentally friendly additive. Therefore, the textile pigment obtained using K-809 polyether block amino silicone oil is light, breathable, soft to the touch, not easy to crack, and has high color fastness. In addition, the present invention uses a specific surfactant as an excellent leveling agent, which has a wetting effect, can effectively prevent color spots and dispersion, and has low toxicity. It can provide antibacterial effects for textile pigments and fabrics, especially against Gram-positive bacteria and some filamentous bacteria. It is convenient to extend the application of the prepared textile pigment to more widely effectively improve the antibacterial and antimicrobial properties of materials such as textile fabrics, shoes, plaster, leather goods, and wood.

[0025] (2) In the preparation method of the textile pigment of the present invention, the combination of the wetting agent and the surfactant has a synergistic effect, which is convenient for enhancing the continuity and smoothness of the textile pigment during painting; specifically, the surfactant is added last, which can effectively reduce the surface tension of the pigment system colloid. When used together with the wetting agent, it can shorten the dispersion time, improve the surface tension and permeability of the textile pigment, so that it can better wet the fabric and shorten the dispersion time. It can also reduce the surface energy of the pigment particle surface, so that the textile pigment can spread on the surface of the textile or penetrate its surface, the lipophilic group is attached to the surface of the textile fabric, and the hydrophilic group can extend outward into the liquid of the textile pigment, so that the liquid of the textile pigment forms a continuous phase in the textile, thereby enhancing the smoothness and continuity of the pigment painting lines.

[0026] (3) In the preparation method of the textile pigment of the present invention, the combination of the aqueous acrylic emulsion and the resin liquid has a synergistic effect, which facilitates enhancing the fluidity and wettability of the molecular chains in the polymer structure of the aqueous acrylic emulsion on the surface of the substrate, promotes close contact between the textile pigment and the textile, achieves a high adhesion effect, and greatly improves the water washing fastness of the textile pigment. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention are within the scope of protection of the present invention.

[0028] A method for preparing a textile pigment comprises the following steps:

[0029] Step S1, weighing 10-20 parts of aqueous acrylic emulsion, 5-20 parts of color paste, 5-10 parts of resin liquid, 3-5 parts of film-forming agent, 0.5-2 parts of polyether block amino silicone oil, 5-10 parts of wetting agent, 2-6 parts of thickener, 1-2 parts of dispersant and 100-115 parts of water in required parts by weight, and mixing them to obtain a first mixture;

[0030] Wherein, the polyether block amino silicone oil is K-809 polyether block amino silicone oil;

[0031] Step S2, adding 1-3 parts by weight of a dispersant to the first mixture, and mixing them to obtain a second mixture; the dispersant added in step S2 facilitates the surfactant added in step S3 to be evenly dispersed in the mixed colloid of the second mixture, and the surfactant can better play its role.

[0032] Step S3, adding 1-3 parts by weight of a surfactant to the second mixture, and mixing the mixture to obtain a textile pigment;

[0033] The surfactant includes any one of an imidazoline surfactant, a betaine surfactant, an ammonium oxide surfactant and a quaternary ammonium salt organic silicon gemini surfactant.

[0034] The wetting agent includes any one of dimethyl sulfoxide, docosanol, lauryl alcohol and propylene glycol.

[0035] The aqueous acrylic emulsion includes any one of R-20, RX-30, RX-20, R-90 and R-20B.

[0036] The resin liquid includes any one of amino silicone resin liquid CS-2000, polyamide-imide resin liquid RI-925, polysiloxane resin liquid PL-2075 and acrylic resin liquid SL112.

[0037] The film-forming agent includes any one of dipropylene glycol monomethyl ether, 3-ethoxyethyl propionate, benzyl alcohol and alcohol ester dodecahydrate.

[0038] The thickener is any one of ZY-608 acrylic thickener, ZY-60 acrylic alkali-resistant thickener, DH-7216S nonionic thickener, PEG-150 distearate thickener and R1001 thickener.

[0039] The dispersant includes any one of dispersant MF, dispersant CNF, dispersant NNO and dispersant 1101.

[0040] In steps S1-S3, the stirring parameters for controlling the mixing are a stirring speed of 600-1000 r / min and a stirring time of 3-10 min.

[0041] The present invention completes Examples 1-6 according to the preparation method of the textile pigment, and the specific raw material selection and dosage are shown in Table 1. In addition, the present invention also provides Comparative Examples 1-5, and the specific raw material selection and dosage are shown in Table 1. The color pastes used in Examples 1-6 and Comparative Examples 1-5 of the present invention are all from the same supplier and are all water-based color pastes. The only difference in the raw material composition used in the color paste is the color.

[0042] Table 1 Raw material selection and dosage corresponding to Examples 1-6 and Comparative Examples 1-5

[0043]

[0044]

[0045] The textile pigments prepared in Examples 1-6 and Comparative Examples 1-5 were subjected to performance tests, and the test results are shown in Table 2. 1) The test method for whether the textile pigments have an antibacterial effect is: test standard AATCC 100.

[0046] 2) The test method for softness is: National Standard "Test Method for Softness of Clothing Fabrics" (GB / T2986-2016).

[0047] 3) The test method for color fastness to washing is: AATCCTM107-2013e2.

[0048] 4) Regarding the test method for the continuity of drawing lines: There is no national standard test method. Use a paintbrush to dip in paint, draw on the textile fabric, and visually inspect the continuity of the drawing lines.

[0049] Table 2 Performance test results of textile pigments prepared in Examples 1-6 and Comparative Examples 1-5

[0050]

[0051]

[0052] From the data in Table 1 and Table 2, we know that:

[0053] Compared with comparative examples 1-5, the textile pigments prepared by examples 1-6 of the present invention have good antibacterial effect, softness, color fastness to washing and drawing line continuity in performance test results.

[0054] Specifically,

[0055] Compared with Comparative Examples 1-2, the textile pigment prepared by the present invention using Example 1, i.e., combining the use of a surfactant and a wetting agent, has improved test results of the drawing line continuity performance.

[0056] Compared with Comparative Examples 3-4, the textile pigment prepared by the present invention using Example 2, that is, combining the use of aqueous acrylic emulsion and resin liquid, has the best test results on color fastness to washing.

[0057] Compared with Comparative Example 5, the textile pigment prepared by the present invention using Example 3, i.e., combining K-809 polyether block amino silicone oil and a surfactant, has improved antibacterial effect, softness, and drawing line continuity performance test results.

[0058] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A method for preparing a textile pigment, characterized in that: The following steps are involved: Step S1, weighing 10-20 parts of aqueous acrylic emulsion, 5-20 parts of color paste, 5-10 parts of resin liquid, 3-5 parts of film-forming agent, 0.5-2 parts of polyether block amino silicone oil, 5-10 parts of wetting agent, 2-6 parts of thickener, 1-2 parts of dispersant and 100-115 parts of water in required parts by weight, and mixing them to obtain a first mixture; Wherein, the polyether block amino silicone oil is K-809 polyether block amino silicone oil; Step S2, adding 1-3 parts by weight of a dispersant to the first mixture, and mixing the mixture to obtain a second mixture; Step S3, adding 1-3 parts by weight of a surfactant to the second mixture, and mixing the mixture to obtain a textile pigment; Wherein, the surfactant includes any one of an imidazoline surfactant, a betaine surfactant, an ammonium oxide surfactant and a quaternary ammonium salt organosilicon gemini surfactant; The wetting agent includes any one of dimethyl sulfoxide, docosyl alcohol, lauryl alcohol and propylene glycol; The aqueous acrylic emulsion includes any one of R-20, RX-30, RX-20, R-90 and R-20B; The resin liquid includes any one of amino silicone resin liquid CS-2000, polyamide-imide resin liquid RI-925, polysiloxane resin liquid PL-2075 and acrylic resin liquid SL112.

2. The method for preparing a textile pigment according to claim 1, wherein The film-forming agent includes any one of dipropylene glycol monomethyl ether, 3-ethoxyethyl propionate, benzyl alcohol and alcohol ester dodecahydrate.

3. The preparation method of textile pigment according to claim 1, characterized in that, The thickener is any one of ZY-608 acrylic thickener, ZY-60 acrylic alkali-resistant thickener, DH-7216S nonionic thickener, PEG-150 distearate thickener and R1001 thickener.

4. The method for preparing a textile pigment according to claim 1, wherein The dispersant includes any one of dispersant MF, dispersant CNF, dispersant NNO and dispersant 1101.

5. The method for preparing a textile pigment according to claim 1, wherein In steps S1-S3, the stirring parameters for controlling the mixing are a stirring speed of 600-1000 r / min and a stirring time of 3-10 min.

6. A textile pigment, characterized in that The textile pigment is prepared by the preparation method of any one of claims 1 to 5.

7. An application of a textile pigment, characterized in that: The textile pigment according to claim 6 is used in textile fabrics, shoes, plaster, leather goods and wood.

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