A textile printing and dyeing assistant and its preparation method

Abstract

The present invention relates to D06M13 / 175, and specifically relates to a textile printing and dyeing assistant and a preparation method thereof. The raw materials include: by mass, 12-18 parts of modified clay, 30-40 parts of surfactant, 1-1.5 parts of silicone oil, 5-10 parts of assistant, and 50 parts of water. The textile printing and dyeing assistant prepared by the textile printing and dyeing assistant and the preparation method thereof of the present invention has the advantages of high alkali resistance, good permeability, high whiteness and softness, etc.

Description

Technical Field

[0001] The present invention relates to D06M13 / 175, and particularly to a textile printing and dyeing assistant and a preparation method thereof. Background Art

[0002] Before textile dyeing and printing, a scouring process is required to remove impurities and oil stains on the fabric surface. The textile printing and dyeing assistant used in this process is called a scouring agent.

[0003] Patent CN201611198545.3, a multifunctional pretreatment scouring agent, is prepared from substances such as non-ionic surfactants, non-ionic mixtures, acrylic acid-hydroxyethyl acrylate copolymers, and clay. The COD of the scouring agent is small, but its whiteness and permeability are low.

[0004] Patent CN201611166671.0, a degreasing and low-fat textile scouring agent and a preparation method thereof, is prepared from substances such as fatty alcohol polyoxyethylene ether, fatty alcohol ether carboxylic acid, isomeric alcohol, sulfosuccinic acid diamide salt, methacrylic acid, chlorohexanoic acid, tea saponin, and alkaline pectinase. The scouring agent has high whiteness and permeability and low residual fat rate, but its alkali resistance is poor.

[0005] The present invention provides a textile printing and dyeing assistant, which has the advantages of high whiteness and good permeability, and also has certain alkali resistance, with a wider application range. Summary of the Invention

[0006] To solve the above technical problems, a first aspect of the present invention provides a textile printing and dyeing assistant, comprising the following raw materials: by mass, 12-18 parts of modified clay, 30-40 parts of surfactant, 1-1.5 parts of silicone oil, 5-10 parts of assistant, and 50 parts of water.

[0007] Preferably, the modified clay includes at least one of modified bleaching earth, modified bentonite, modified montmorillonite, modified kaolin, modified illite clay, and modified chlorite clay.

[0008] More preferably, the modified clay includes modified montmorillonite.

[0009] Preferably, the raw materials for preparing the modified montmorillonite include montmorillonite and quaternary ammonium salt cationic surfactant.

[0010] Preferably, the mass ratio of the montmorillonite to the quaternary ammonium salt cationic surfactant is 100:(0.8-1.2).

[0011] Preferably, the montmorillonite includes sodium-based montmorillonite and / or calcium-based montmorillonite.

[0012] More preferably, the montmorillonite includes sodium-based montmorillonite.

[0013] Preferably, the quaternary ammonium salt cationic surfactant is a Gemini quaternary ammonium salt cationic surfactant. Montmorillonite can promote the detachment of oil stains from fabrics. However, due to the limitations of the properties of montmorillonite itself, its detergency is limited. By defining the Gemini quaternary ammonium salt cationic surfactant and the mass ratio of montmorillonite to the quaternary ammonium salt cationic surfactant as 100:(0.8 - 1.2), the invention significantly increases the layer spacing of montmorillonite, controls the surface polarity, effectively enhances the interaction force with oil agent molecules, improves the oil agent removal rate, and obtains fabrics with higher whiteness. Especially when the montmorillonite is sodium-based montmorillonite, the effect is the best.

[0014] More preferably, the Gemini quaternary ammonium salt cationic surfactant includes at least one of ethylene bis[(octanamidopropyl dimethyl / dodecanamidopropyl dimethyl) chloride / bromide], ethylene bis[(octanamidopropyl dimethyl / tetradecanamidopropyl dimethyl) chloride / bromide], ethylene bis[(octanamidopropyl dimethyl / hexadecanamidopropyl dimethyl) chloride / bromide], ethylene bis[(octanamidopropyl dimethyl / octadecanamidopropyl dimethyl) chloride / bromide], ethylene bis[(decanamidopropyl dimethyl / tetradecanamidopropyl dimethyl) chloride / bromide].

[0015] More preferably, the Gemini quaternary ammonium salt cationic surfactant includes ethylene bis[(octanamidopropyl dimethyl / dodecanamidopropyl dimethyl) chloride / bromide].

[0016] At the same time, the present invention further studies and finds that the best effect is achieved when using ethylene bis[(octanamidopropyl dimethyl / decanamidopropyl dimethyl) chloride / bromide], avoiding too long carbon chains and too small specific surface area, which may lead to the inability of the prepared textile printing and dyeing auxiliaries to effectively contact the oil agent and the oil agent cannot be fully detached from the fabric surface.

[0017] Preferably, the preparation method of the modified montmorillonite includes the following steps: mixing montmorillonite and deionized water at a mass ratio of 5:100, heating to 80°C and stirring for 1 h, adjusting the pH to 5, then adding the quaternary ammonium salt cationic surfactant, continuing to stir at a constant temperature for 5 h, cooling to room temperature, filtering, washing, drying, and grinding to obtain.

[0018] Preferably, the surfactant includes an ionic surfactant and a non-ionic surfactant. The mass ratio of the ionic surfactant to the non-ionic surfactant is (3 - 5):(5 - 7).

[0019] Preferably, the ionic surfactant includes at least one of sodium alkyl sulfonate, sodium alkyl benzene sulfonate, sodium alcohol ether sulfate, phosphate ester salt, and alcohol ether carboxylate.

[0020] More preferably, the ionic surfactant includes sodium alcohol ether sulfate.

[0021] Preferably, the sodium alcohol ether sulfate is sodium lauryl polyoxyethylene ether sulfate.

[0022] Preferably, the non-ionic surfactant includes at least one of alkylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, polyoxyethylene-polyoxypropylene block polyether, and alkyl glycoside.

[0023] More preferably, the non-ionic surfactant includes fatty alcohol polyoxyethylene ether.

[0024] Preferably, the fatty alcohol polyoxyethylene ether includes a first fatty alcohol polyoxyethylene ether and a second fatty alcohol polyoxyethylene ether. The mass ratio of the first fatty alcohol polyoxyethylene ether to the second fatty alcohol polyoxyethylene ether is (7-10):(2-4).

[0025] Preferably, the hydroxyl value of the first fatty alcohol polyoxyethylene ether is 110-120mgKOH / g, and the HLB value is 8.5-9.5.

[0026] Preferably, the average molecular weight of the second fatty alcohol polyoxyethylene ether is 900-1200.

[0027] Preferably, the viscosity of the silicone oil at 25°C is 800-2000mPa·s.

[0028] Preferably, the silicone oil includes at least one of amino-modified silicone oil, epoxy-modified silicone oil, polyether-modified silicone oil, and hydroxyl silicone oil.

[0029] More preferably, the silicone oil includes polyether-modified silicone oil.

[0030] Preferably, the auxiliary agent includes at least one of antibacterial agent, dispersant, defoamer, complexing agent, synergist, and silane coupling agent.

[0031] More preferably, the auxiliary agent includes a dispersant and a synergist.

[0032] Preferably, the dispersant is hyperbranched polyamide.

[0033] Preferably, the hyperbranched polyamide includes terminal amino hyperbranched polyamide and / or terminal hydroxyl hyperbranched polyamide.

[0034] Preferably, the number of amino groups of the terminal amino hyperbranched polyamide is 12-16mol.

[0035] Preferably, the average molecular weight of the terminal amino hyperbranched polyamide is 1900-2200.

[0036] Preferably, the synergist comprises lauric acid dihydrazide.

[0037] The second aspect of the present invention provides a method for preparing a textile printing and dyeing auxiliary agent, comprising the following steps: uniformly mixing a surfactant, silicone oil, an auxiliary agent and water, and then adding modified clay and continuously stirring for 2-3 hours to obtain the auxiliary agent.

[0038] Beneficial effects:

[0039] 1) The present invention provides a textile printing and dyeing auxiliary and a preparation method thereof. The textile printing and dyeing auxiliary prepared by limiting the type and content of the raw materials of each substance in the system has the advantages of high alkali resistance, good permeability, high whiteness and softness, and is particularly suitable for acid dyes and reactive dyes.

[0040] 2) The present invention limits the Gemini quaternary ammonium salt cationic surfactant and limits the mass ratio of sodium montmorillonite and quaternary ammonium salt cationic surfactant to 100: (0.8-1.2), thereby promoting the separation of oil stains from fabrics, improving their cleaning ability, and obtaining fabrics with higher whiteness. At the same time, the present invention further studies and finds that the best effect is achieved when ethylene [(octaamidopropyl dimethyl / decamidopropyl dimethyl) chloride / ammonium bromide] is used, so that the obtained textile printing and dyeing auxiliary has higher permeability and whiteness.

[0041] 3) The present invention has found that the use of terminal amino hyperbranched polyamide can form an adsorption layer on the surface of oil particles, effectively prevent the aggregation of oil particles, and promote the formation of a more stable emulsion system, especially when the number of amino groups is 12-16 mol and the average molecular weight is 1900-2200, further reducing the contact between the decomposition products of the oil particles themselves and the fabric, and the hydroxyl value of 110-120 mgKOH / g, HLB value of 8.5-9.5, sodium lauryl polyether sulfate, and average molecular weight of 900-1200 isomeric tridecanol random polyether in the system work together to further enhance the contact between the fabric and the textile printing and dyeing auxiliaries, and have permeability. DETAILED DESCRIPTION

[0042] Example

[0043] Example 1

[0044] A textile printing and dyeing auxiliary agent comprises the following raw materials: by weight, 15 parts of modified clay, 35 parts of surfactant, 1.2 parts of silicone oil, 8 parts of auxiliary agent and 50 parts of water.

[0045] The modified clay includes modified montmorillonite. The raw materials for preparing the modified montmorillonite include montmorillonite and quaternary ammonium salt cationic surfactant. The mass ratio of the montmorillonite to the quaternary ammonium salt cationic surfactant is 100:1. The montmorillonite includes sodium-based montmorillonite. The quaternary ammonium salt cationic surfactant is a Gemini quaternary ammonium salt cationic surfactant. The Gemini quaternary ammonium salt cationic surfactant includes ethylene bis[(octanamidopropyl dimethyl / dodecanamidopropyl dimethyl) chloride / bromide ammonium], and is purchased from Zhengzhou Yihe Fine Chemical Co., Ltd.

[0046] The preparation method of the modified montmorillonite includes the following steps: Mix montmorillonite and deionized water at a mass ratio of 5:100, heat up to 80 °C and stir for 1 h, adjust the pH to 5, then add the quaternary ammonium salt cationic surfactant, continue to stir at a constant temperature for 5 h, cool to room temperature, filter, wash, dry, and grind to obtain.

[0047] The surfactant includes an ionic surfactant and a non-ionic surfactant. The mass ratio of the ionic surfactant to the non-ionic surfactant is 4:6.

[0048] The ionic surfactant includes sodium lauryl polyether sulfate, and is purchased from Hebei Bairunda Chemical Technology Co., Ltd.

[0049] The non-ionic surfactant includes fatty alcohol polyoxyethylene ether. The fatty alcohol polyoxyethylene ether includes a first fatty alcohol polyoxyethylene ether and a second fatty alcohol polyoxyethylene ether. The mass ratio of the first fatty alcohol polyoxyethylene ether to the second fatty alcohol polyoxyethylene ether is 7:3. The hydroxyl value of the first fatty alcohol polyoxyethylene ether is 115 ± 4 mgKOH / g, the HLB value is 8.5 - 9.5, and it is purchased from Jiangsu Haian Petrochemical Factory, model: O-5. The average molecular weight of the second fatty alcohol polyoxyethylene ether is 1000 ± 100, model: TPE-1000.

[0050] The silicone oil includes polyether-modified silicone oil, with a viscosity of 800 - 2000 mPa·s at 25 °C, and is purchased from Jiangsu Daoruiwei Environmental Protection Technology Co., Ltd., model: DF-1200S.

[0051] The auxiliary agent includes a dispersant and a synergist. The dispersant is hyperbranched polyamide. The hyperbranched polyamide includes terminal amino hyperbranched polyamide, with the number of amino groups being 12 - 16 mol and the average molecular weight being 1900 - 2200. It is purchased from Wuhan Hyperbranched Resin Technology Co., Ltd., model: HyPer N103.

[0052] The synergist includes dodecanedioic dihydrazide, and is purchased from Quzhou Ruierfeng Chemical Co., Ltd.

[0053] A preparation method of a textile printing and dyeing assistant, comprising the following steps: uniformly mixing a surfactant, silicone oil, an assistant, and water, and then adding modified clay and continuously stirring for 2.5 h to obtain the product.

[0054] Example 2

[0055] A textile printing and dyeing assistant, the specific implementation manner is the same as that of Example 1, except that the mass ratio of the montmorillonite to the quaternary ammonium salt cationic surfactant is 100:0.8.

[0056] Example 3

[0057] A textile printing and dyeing assistant, the specific implementation manner is the same as that of Example 1, except that the raw materials include 18 parts of modified clay, 40 parts of surfactant, 1.5 parts of silicone oil, 10 parts of assistant, and 50 parts of water.

[0058] Comparative Example 1

[0059] A textile printing and dyeing assistant, the specific implementation manner is the same as that of Example 1, except that the Gemini quaternary ammonium salt cationic surfactant is ethylene bis[(octanamidopropyl dimethyl / hexadecanamidopropyl dimethyl) chloride / bromide ammonium].

[0060] Comparative Example 2

[0061] A textile printing and dyeing assistant, the specific implementation manner is the same as that of Example 1, except that the quaternary ammonium salt cationic surfactant is cetyltrimethylammonium chloride.

[0062] Performance test

[0063] 1. Permeability: Add deionized water to the samples prepared in the examples and comparative examples to prepare a solution with a concentration of 10 g / L at 25 °C, with a liquid level height of 6 cm. Horizontally place a cotton fine canvas (21s 3-ply * 2121s 4-ply) with a diameter of 35 cm on the liquid surface, start the stopwatch, record the time required for the canvas to sink to the bottom, repeat 5 times, and take the average value.

[0064] 2. Whiteness: Test according to the textile whiteness evaluation method of GB / T 824.2-2001;

[0065] Table 1 Performance test results

[0066] Permeability s Whiteness Example 1 8 82.4 Example 2 9 81.9 Example 3 9 81.4 Comparative Example 1 13 79.8 Comparative Example 2 15 76.5

Claims

1. A textile printing and dyeing auxiliary, characterized in that, It includes the following raw materials: by mass, 12 - 18 parts of modified clay, 30 - 40 parts of surfactant, 1 - 1.5 parts of silicone oil, 5 - 10 parts of auxiliary agent, and 50 parts of water; The modified clay includes modified montmorillonite; The preparation raw materials of the modified montmorillonite include montmorillonite and quaternary ammonium salt cationic surfactant; The mass ratio of the montmorillonite to the quaternary ammonium salt cationic surfactant is 100:(0.8 - 1.2); The quaternary ammonium salt cationic surfactant is Gemini quaternary ammonium salt cationic surfactant, and the Gemini quaternary ammonium salt cationic surfactant is ethylene bis[(octanamidopropyl dimethyl / dodecanamidopropyl dimethyl)chloride / bromide]; The surfactant includes ionic surfactant and non - ionic surfactant, and the mass ratio of the ionic surfactant to the non - ionic surfactant is (3 - 5):(5 - 7); The ionic surfactant is sodium lauryl polyether sulfate, and the non - ionic surfactant includes fatty alcohol polyoxyethylene ether; The fatty alcohol polyoxyethylene ether includes first fatty alcohol polyoxyethylene ether and second fatty alcohol polyoxyethylene ether; the mass ratio of the first fatty alcohol polyoxyethylene ether to the second fatty alcohol polyoxyethylene ether is (7 - 10):(2 - 4); the hydroxyl value of the first fatty alcohol polyoxyethylene ether is 110 - 120 mgKOH / g, and the HLB value is 8.5 - 9.5; the average molecular weight of the second fatty alcohol polyoxyethylene ether is 900 - 1200; The auxiliary agent includes dispersant and synergist, and the dispersant is hyperbranched polyamide; The hyperbranched polyamide includes terminal - amino hyperbranched polyamide and / or terminal - hydroxyl hyperbranched polyamide; The number of amino groups of the terminal - amino hyperbranched polyamide is 12 - 16 mol; The average molecular weight of the terminal - amino hyperbranched polyamide is 1900 - 2200; The viscosity of the silicone oil at 25°C is 800 - 2000 mPa·s.

2. The textile printing and dyeing assistant according to claim 1, characterized in that The montmorillonite includes sodium - based montmorillonite and / or calcium - based montmorillonite.

3. A textile printing and dyeing auxiliary according to claim 1, characterized in that, The silicone oil includes at least one of amino - modified silicone oil, epoxy - modified silicone oil, polyether - modified silicone oil, and hydroxyl silicone oil.

4. A preparation method of a textile printing and dyeing assistant according to any one of claims 1-3, characterized in that, It includes the following steps: Mix the surfactant, silicone oil, auxiliary agent, and water evenly, and then add the modified clay and continuously stir for 2 - 3 h to obtain the product.