Water-based printing adhesive cement and application thereof

Abstract

The invention provides water-based printing adhesive cement and application thereof. The water-based printing adhesive cement is prepared from the following components in parts by weight: 35 to 45 parts of water-based anion resin, 4 to 15 parts of water, 0.05 to 2 parts of pH (Potential of Hydrogen) regulator, 10 to 20 parts of humectant, 1 to 15 parts of anti-sticking agent and 0.5 to 2 parts of thickening agent, the water-based anion resin comprises a water-based polyacrylate emulsion, and the glass transition temperature of the water-based polyacrylate emulsion is greater than or equal to 10 DEG C. The water-based printing adhesive cement provided by the invention combines the advantages of digital-imitated printing adhesive cement and breathable printing adhesive cement, not only has the advantages of abundant printing colors and fine patterns of the digital-imitated printing adhesive cement, but also has the unique air permeability and comfort of the breathable printing adhesive cement for keeping fabrics.

Description

Technical Field

[0001] The invention belongs to the technical field of water-based printing paste, and in particular relates to a water-based printing paste and application thereof. Background Art

[0002] Imitation digital printing is a popular printing process in recent years. It is deeply loved by consumers for its good comfort, rich colors, exquisite patterns and other characteristics. However, the imitation digital printing process generally has problems such as poor ink compatibility, expensive equipment, and high production costs. The mainstream imitation digital printing on the market currently generally has problems such as low air permeability and poor comfort. In addition, traditional breathable printing paste has problems such as severe color cast and low fineness.

[0003] Therefore, it is necessary to develop a water-based printing paste that can achieve the bright colors and high fineness of imitation digital printing while maintaining the air permeability and comfort of the fabric. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention aims to provide a water-based printing paste and its application. The water-based printing paste combines the advantages of imitation digital printing paste and breathable printing paste, and has the advantages of rich colors and delicate patterns of imitation digital printing paste, and also has the unique breathability and comfort of breathable printing paste.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides an aqueous printing paste, which comprises the following components by weight: 35 to 45 parts (for example, 36 parts, 37 parts, 38 parts, 39 parts, 40 parts, 41 parts, 42 parts, 43 parts or 44 parts) of aqueous anion resin, 4 to 15 parts (for example, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts or 14 parts) of water, 0.05 to 2 parts (for example, 0.2 parts, 0.4 parts, 0.6 parts) of pH regulator. , 0.8 parts, 1.0 parts, 1.2 parts, 1.4 parts, 1.6 parts or 1.8 parts, etc.), humectant 10-20 parts (for example, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts or 19 parts, etc.), anti-tack agent 1-15 parts (for example, 2 parts, 4 parts, 6 parts, 8 parts, 10 parts, 12 parts or 14 parts, etc.) and thickener 0.5-2 parts (for example, 0.6 parts, 0.8 parts, 1.0 parts, 1.2 parts, 1.4 parts, 1.6 parts or 1.8 parts, etc.);

[0007] The aqueous anionic resin includes an aqueous polyacrylate emulsion, and the glass transition temperature of the aqueous polyacrylate emulsion is ≥10°C (eg, 11°C, 12°C, 13°C, 14°C, 15°C, 16°C, 17°C, 18°C ​​or 19°C, etc.).

[0008] In the present invention, by using a water-based anionic resin with a high glass transition temperature in combination with other components, the permeability and fluidity of the water-based printing paste are enhanced, so that the water-based printing paste can be attached to the fibers of the cloth and penetrate therein, rather than forming a film on the surface of the printed flower position, thereby ensuring air permeability; introducing a high weight portion of a moisturizer enhances the operability of the printing paste, and also ensures good mesh passing when using a high-mesh screen, so that the water-based printing paste can produce a high-precision pattern. The water-based printing paste combines the advantages of the imitation digital printing paste and the breathable printing paste, and has the advantages of rich colors and delicate patterns of the imitation digital printing paste, and also has the unique breathability and comfort of the breathable printing paste printing to maintain the fabric.

[0009] In the present invention, the glass transition temperature of the aqueous polyacrylate emulsion ≥ 10°C means that the glass transition temperature of the polymer in the aqueous polyacrylate emulsion is ≥ 10°C.

[0010] Preferably, the weight proportion of the aqueous anion resin is 38 to 40 parts.

[0011] Preferably, the pH adjuster is present in an amount of 0.5 to 1.5 parts by weight.

[0012] Preferably, the weight proportion of the anti-sticking agent is 7 to 9 parts.

[0013] In the present invention, the weight proportion of the anti-sticking agent is preferably 7 to 9 parts. If the weight proportion of the anti-sticking agent is too low, the anti-sticking property of the prepared water-based printing paste will be significantly reduced; if the weight proportion of the anti-sticking agent is too high, the air permeability of the prepared water-based printing paste will be somewhat reduced.

[0014] Preferably, the glass transition temperature of the aqueous polyacrylate emulsion is 15-20°C.

[0015] Preferably, the solid content of the aqueous polyacrylate emulsion is ≤50%, for example, 32%, 34%, 36%, 38%, 40%, 42%, 44%, 46% or 48%, etc.

[0016] Preferably, the solid content of the aqueous polyacrylate emulsion is 38% to 41%.

[0017] Preferably, the pH adjuster includes aqueous ammonia or diethanolamine, more preferably diethanolamine.

[0018] Preferably, the humectant comprises propylene glycol and / or diethylene glycol.

[0019] Preferably, the raw materials for preparing the water-based printing paste also include an emulsifier.

[0020] Preferably, the weight proportion of the emulsifier is 2 to 5 parts (eg, 2.3 parts, 2.6 parts, 2.9 parts, 3.2 parts, 3.5 parts, 3.8 parts, 4.1 parts, 4.4 parts or 4.7 parts, etc.), more preferably 2 to 3 parts.

[0021] In the present invention, the weight proportion of the emulsifier is preferably 2 to 3 parts. If no emulsifier is added or the weight proportion of the emulsifier is too low, the fluidity and permeability of the prepared water-based printing paste decrease, thereby affecting the air permeability and operability; if the weight proportion of the emulsifier is too high, the prepared water-based printing paste can maintain good operability, but the permeability will be further enhanced, resulting in the water-based printing paste penetrating more thoroughly into the fabric fibers and making the surface thinner, thereby affecting the washing fastness.

[0022] Preferably, the emulsifier includes 305 emulsifier or OP-10 emulsifier, and more preferably 305 emulsifier.

[0023] Preferably, the anti-sticking agent includes emulsified paraffin or emulsified silicone oil, and more preferably emulsified paraffin.

[0024] Preferably, the thickener comprises a PTF thickener and / or an alkali swelling thickener.

[0025] Preferably, the raw materials for preparing the water-based printing paste also include a closed water-based curing agent.

[0026] Preferably, the blocked water-based curing agent comprises blocked polyhexamethylene diisocyanate.

[0027] Preferably, the blocked water-based curing agent is blocked polyhexamethylene diisocyanate water-based curing agent Y-3170 produced by Bengbu Adiya New Materials Co., Ltd.

[0028] In the present invention, the water-based printing paste is added with a blocked water-based curing agent, which can effectively improve the water fastness of the printing.

[0029] Preferably, the weight proportion of the blocked water-based curing agent is 0 to 3 parts (eg, 0.3 parts, 0.6 parts, 0.9 parts, 1.2 parts, 1.5 parts, 1.8 parts, 2.1 parts, 2.4 parts or 2.7 parts, etc.), and more preferably 1 to 2 parts.

[0030] Preferably, the raw materials for preparing the water-based printing paste also include filling powder.

[0031] Preferably, the weight proportion of the filling powder is 0.1 to 20 parts, for example, 2 parts, 4 parts, 6 parts, 8 parts, 10 parts, 12 parts, 14 parts, 16 parts, 18 parts, etc.

[0032] Preferably, the filler powder comprises silicon dioxide and / or titanium dioxide.

[0033] Preferably, the raw materials for preparing the water-based printing paste further include any one of a defoamer, a wetting and dispersing agent, a surfactant or a preservative, or a combination of at least two thereof.

[0034] Preferably, the defoaming agent comprises a polyether defoaming agent.

[0035] Preferably, the weight proportion of the defoaming agent is 0.2 to 0.5 parts, such as 0.25 parts, 0.3 parts, 0.35 parts, 0.4 parts or 0.45 parts.

[0036] Preferably, the wetting and dispersing agent comprises a sodium salt dispersant.

[0037] Preferably, the weight portion of the wetting and dispersing agent is 0.2 to 0.5 parts, for example, 0.25 parts, 0.3 parts, 0.35 parts, 0.4 parts or 0.45 parts.

[0038] Preferably, the surfactant comprises a nonionic surfactant.

[0039] Preferably, the surfactant includes branched alcohol TO-3070 produced by BASF.

[0040] Preferably, the weight proportion of the surfactant is 1 to 3 parts, for example, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts, 2.0 parts, 2.2 parts, 2.4 parts, 2.6 parts or 2.8 parts.

[0041] Preferably, the preservative comprises Kathon.

[0042] Preferably, the weight portion of the preservative is 0.1 to 1 part, for example, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part or 0.9 part, etc.

[0043] Preferably, the raw materials for preparing the water-based printing paste also include color paste.

[0044] Preferably, the aqueous printing paste comprises the following components in mass percentage: 20% to 25% of component A (for example, 20.5%, 21%, 21.5%, 22%, 22.5%, 23%, 23.5% or 24.5%, etc.), 70% to 75% of component B (for example, 70.5%, 71%, 71.5%, 72%, 72.5%, 73%, 73.5%, 74% or 74.5%, etc.) and 0% to 5% of color paste (for example, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4% or 4.5%, etc.).

[0045] Preferably, the A component includes the following components by weight: 25-35 parts (e.g., 26 parts, 27 parts, 28 parts, 29 parts, 30 parts, 31 parts, 32 parts, 33 parts or 34 parts) of aqueous anion resin, 5-10 parts (e.g., 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts or 9.5 parts) of water, 0.5-1.5 parts (e.g., 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts, 1.0 parts, 1.1 parts, 1.2 parts, 1.3 parts, 1.4 parts, 1.5 parts) of pH regulator. .3 or 1.4 parts, etc.), humectant 15-20 parts (for example 15.5 parts, 16 parts, 16.5 parts, 17 parts, 17.5 parts, 18 parts, 18.5 parts, 19 parts or 19.5 parts), emulsifier 1-3 parts (for example 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts, 2.0 parts, 2.2 parts, 2.4 parts, 2.6 parts or 2.8 parts, etc.), defoamer 0.2-0.5 parts (for example 0.25 parts, 0.3 parts, 0.35 parts, 0.4 parts or 0.45 parts, etc.), wetting dispersant 0 .2-0.5 parts (for example, 0.25 parts, 0.3 parts, 0.35 parts, 0.4 parts or 0.45 parts, etc.), anti-adhesive 4-8 parts (4.5 parts, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts or 7.5 parts), filler powder 25-32 parts (26 parts, 27 parts, 28 parts, 29 parts, 30 parts or 31 parts, etc.), surfactant 1-3 parts (for example, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts, 2.0 parts, 2.2 parts, 2.4 parts, 2.6 parts or 2.8 parts, etc.), closed water 2 to 4 parts of a curing agent (for example, 2.2 parts, 2.4 parts, 2.6 parts, 2.8 parts, 3.0 parts, 3.2 parts, 3.4 parts, 3.6 parts or 3.8 parts, etc.), 0.1 to 0.4 parts of a preservative (for example, 0.13 parts, 0.16 parts, 0.19 parts, 0.22 parts, 0.25 parts, 0.28 parts, 0.31 parts, 0.34 parts or 0.37 parts, etc.) and 0.5 to 2 parts of a thickener (for example, 0.7 parts, 0.9 parts, 1.1 parts, 1.3 parts, 1.5 parts, 1.7 parts or 1.9 parts, etc.).

[0046] Preferably, the A component is prepared by the following method: adding a pH regulator, water, a humectant, an emulsifier, a defoamer, a wetting dispersant, and an anti-sticking agent to an aqueous anion resin, mixing at a speed of 20 to 30 rpm (for example, 21 rpm, 22 rpm, 23 rpm, 24 rpm, 25 rpm, 26 rpm, 27 rpm, 28 rpm, or 29 rpm, etc.) for 5 to 10 min (for example, 5.5 min, 6 min, 6.5 min, 7 min, 7.5 min, 8 min, 8.5 min, 9 min, or 9.5 min, etc.), then adding a filler powder, and mixing at a speed of 25 to 35 rpm (for example, 26 rpm, 27 rpm, 28 rpm, 29 rpm, 30 rpm, 31 rpm, 32 rpm, 33 rpm, or 34 rpm, etc.). The mixture is mixed for 5 to 10 minutes (for example, 5.5 minutes, 6 minutes, 6.5 minutes, 7 minutes, 7.5 minutes, 8 minutes, 8.5 minutes, 9 minutes or 9.5 minutes, etc.), and finally a surfactant, a closed water-based curing agent, a preservative and a thickener are added, and the mixture is mixed for 8 to 15 minutes (for example, 9 minutes, 10 minutes, 11 minutes, 12 minutes, 13 minutes or 14 minutes, etc.) at a rotation speed of 40 to 50 rpm (for example, 41 rpm, 42 rpm, 43 rpm, 44 rpm, 45 rpm, 46 rpm, 47 rpm, 48 rpm or 49 rpm, etc.), and the material is filtered through a gauze of 1200 to 1800 meshes (for example, 1300 meshes, 1400 meshes, 1500 meshes, 1600 meshes or 1700 meshes, etc.) to obtain the A component.

[0047] Preferably, the B component includes the following components by weight: 40-50 parts (e.g., 41 parts, 42 parts, 43 parts, 44 parts, 45 parts, 46 parts, 47 parts, 48 ​​parts or 49 parts) of aqueous anion resin, 10-15 parts (e.g., 10.5 parts, 11 parts, 11.5 parts, 12 parts, 12.5 parts, 13 parts, 13.5 parts, 14 parts or 14.5 parts) of water, 0.5-1.5 parts (e.g., 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts, 1.0 parts, 1.1 parts) of pH regulator. 1-3 parts (for example, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts, 2.0 parts, 2.2 parts, 2.4 parts, 2.6 parts or 2.8 parts), defoamer 0.2-0.5 parts (for example, 0.25 parts, 0.3 parts, 0.35 parts, 0.4 parts or 0.45 parts), wetting and dispersing agent 0.2-0.5 parts (for example, 0.25 parts, 0.3 parts), , 0.35 parts, 0.4 parts or 0.45 parts, etc.), anti-adhesive 7-9 parts (for example, 7.2 parts, 7.4 parts, 7.6 parts, 7.8 parts, 8.0 parts, 8.2 parts, 8.4 parts, 8.6 parts or 8.8 parts, etc.), filling powder 6-10 parts (for example, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts or 9.5 parts, etc.), surfactant 1-3 parts (for example, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts, 2.0 parts, 2.2 parts, 2.4 parts, 2.6 parts or 2.8 parts, etc.), sealing 2 to 4 parts of closed-type water-based curing agent (for example, 2.2 parts, 2.4 parts, 2.6 parts, 2.8 parts, 3.0 parts, 3.2 parts, 3.4 parts, 3.6 parts or 3.8 parts, etc.), 0.1 to 0.4 parts of preservative (for example, 0.13 parts, 0.16 parts, 0.19 parts, 0.22 parts, 0.25 parts, 0.28 parts, 0.31 parts, 0.34 parts or 0.37 parts, etc.) and 0.5 to 2 parts of thickener (for example, 0.7 parts, 0.9 parts, 1.1 parts, 1.3 parts, 1.5 parts, 1.7 parts or 1.9 parts, etc.).

[0048] Preferably, the B component is prepared by the following method: adding a pH regulator, water, a humectant, an emulsifier, a defoamer, a wetting dispersant, and an anti-sticking agent to an aqueous anion resin, mixing at a speed of 20 to 30 rpm (for example, 21 rpm, 22 rpm, 23 rpm, 24 rpm, 25 rpm, 26 rpm, 27 rpm, 28 rpm, or 29 rpm, etc.) for 5 to 10 min (for example, 5.5 min, 6 min, 6.5 min, 7 min, 7.5 min, 8 min, 8.5 min, 9 min, or 9.5 min, etc.), then adding a filler powder, and mixing at a speed of 25 to 35 rpm (for example, 26 rpm, 27 rpm, 28 rpm, 29 rpm, 30 rpm, 31 rpm, 32 rpm, 33 rpm, or 34 rpm, etc.). The mixture is mixed for 5 to 10 minutes (for example, 5.5 minutes, 6 minutes, 6.5 minutes, 7 minutes, 7.5 minutes, 8 minutes, 8.5 minutes, 9 minutes or 9.5 minutes, etc.), and finally a surfactant, a closed water-based curing agent, a preservative and a thickener are added, and the mixture is mixed for 8 to 15 minutes (for example, 9 minutes, 10 minutes, 11 minutes, 12 minutes, 13 minutes or 14 minutes, etc.) at a rotation speed of 40 to 50 rpm (for example, 41 rpm, 42 rpm, 43 rpm, 44 rpm, 45 rpm, 46 rpm, 47 rpm, 48 rpm or 49 rpm, etc.), and the material is filtered through a gauze of 1200 to 1800 meshes (for example, 1300 meshes, 1400 meshes, 1500 meshes, 1600 meshes or 1700 meshes, etc.) to obtain the B component.

[0049] In the present invention, the preparation process of the water-based printing paste is simple, the raw materials are easily available, the threshold for use is lowered, and a large number of small and medium-sized enterprises can also produce it, thereby improving production efficiency and being suitable for large-scale promotion.

[0050] Preferably, the filler powder in component A includes titanium dioxide and silicon dioxide.

[0051] Preferably, the filler powder in the B component includes silicon dioxide.

[0052] In the present invention, component A has a white appearance, and its main function is to provide high hiding power when printing dark-colored cloth such as black; component B has a milky white appearance, and its main function is to mix bright colors such as red, yellow, blue, and green. In actual production, components A and B can be mixed with color paste in a certain proportion according to demand to obtain the required color.

[0053] In a second aspect, the present invention provides a use of the water-based printing paste as described in the first aspect in the preparation of printed fabrics.

[0054] Compared with the prior art, the present invention has the following beneficial effects:

[0055] The water-based printing paste of the present invention combines the advantages of the imitation digital printing paste and the breathable printing paste, and has the advantages of rich colors and delicate patterns of the imitation digital printing paste, and also has the unique breathability and comfort of the breathable printing paste. DETAILED DESCRIPTION

[0056] The technical solution of the present invention is further described below by specific implementation methods. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0057] The sources of some components in the following examples and comparative examples are as follows:

[0058] Water-based polyacrylate emulsion A: FB50S from Dongguan Changlian New Materials Technology Co., Ltd., with a solid content of 40.2% and a glass transition temperature of 17°C;

[0059] Water-based polyacrylate emulsion B: L60 resin from Dongguan Changlian New Materials Technology Co., Ltd., with a solid content of 54% and a glass transition temperature of 0°C;

[0060] Defoaming agent: brand MY-240, manufacturer Shandong Meiyu Chemical Co., Ltd.

[0061] Wetting and dispersing agent: brand 5040, manufacturer is Guangzhou Guanglong Chemical Technology Co., Ltd.;

[0062] Emulsified paraffin: brand name is B-51, manufacturer is Dongguan Changlian New Materials Technology Co., Ltd.;

[0063] Emulsified silicone oil: brand name is PMX200, manufacturer is Dow Corning;

[0064] Surfactant: BASF's isomeric alcohol TO-3070;

[0065] Closed water-based curing agent: Closed polyhexamethylene diisocyanate water-based curing agent Y-3170 produced by Bengbu Adiya New Materials Co., Ltd.

[0066] Titanium dioxide: D50 particle size is 12064nm, rutile titanium dioxide, brand name is JMR-2366, manufacturer is Shenzhen Daxing Chemical Co., Ltd.;

[0067] Silica: D50 particle size is 5418.92nm, precipitated silica, brand A150, manufacturer is Shijiazhuang Ruituo Chemical Technology Co., Ltd.

[0068] 305 emulsifier: the manufacturer is Guangzhou Bolu Chemical Co., Ltd.;

[0069] OP-10 emulsifier: the manufacturer is Guangzhou Hongdu Chemical Co., Ltd.;

[0070] Alkali soluble swelling thickener: brand name is ASE-60, manufacturer is Shanghai Kaiyin Chemical Co., Ltd.;

[0071] PTF thickener: The manufacturer is Guangzhou Runhong Chemical Co., Ltd.;

[0072] Color paste: high temperature bright red paste, brand 1447H, manufacturer is Zhuhai Dicai New Material Technology Co., Ltd.

[0073] Example 1

[0074] The present embodiment provides an aqueous printing paste, which includes the following components in mass percentage: 20% component A, 75% component B and 5% color paste; the component A includes the following components in weight: 30 parts of aqueous anionic resin (aqueous polyacrylate emulsion A), 8 parts of deionized water, 1 part of pH regulator (diethanolamine), 18 parts of moisturizer (propylene glycol and diethylene glycol in a mass ratio of 5:1), 3 parts of emulsifier (305 emulsifier), 0.5 parts of defoamer, 0.5 parts of wetting and dispersing agent, 6 parts of anti-sticking agent (emulsified paraffin), 27 parts of filling powder (titanium dioxide and silicon dioxide in a mass ratio of 8:1), 2 parts of surfactant, 2 parts of closed water-based curing agent, 0.3 parts of preservative (Kason) and 1.7 parts of thickener (alkali swellable thickener and PTF thickener in a mass ratio of 7:10).

[0075] The B component includes the following components in parts by weight: 45 parts of aqueous anionic resin (aqueous polyacrylate emulsion A), 10 parts of deionized water, 1 part of pH adjuster (diethanolamine), 19 parts of moisturizer (propylene glycol and diethylene glycol in a mass ratio of 14:5), 3 parts of emulsifier (305 emulsifier), 0.5 parts of defoamer, 0.2 parts of wetting and dispersing agent, 9 parts of anti-sticking agent (emulsified paraffin), 5 parts of filling powder (silicon dioxide), 2 parts of surfactant, 2 parts of blocked aqueous curing agent, 0.3 parts of preservative (Kason) and 2 parts of thickener (alkali swellable thickener and PTF thickener in a mass ratio of 3:7).

[0076] The component A is prepared by the following method: adding a pH regulator, deionized water, a moisturizer, an emulsifier, a defoamer, a wetting dispersant, and an anti-sticking agent to an aqueous anion resin, mixing at a rotation speed of 25 rpm for 5 minutes, then adding a filler powder, mixing at a rotation speed of 30 rpm for 8 minutes, and finally adding a surfactant, a closed water-based curing agent, a preservative and a thickener, mixing at a rotation speed of 45 rpm for 10 minutes, and filtering the material with a 1500-mesh gauze to obtain the component A.

[0077] The B component is prepared by the following method: adding a pH regulator, deionized water, a moisturizer, an emulsifier, a defoamer, a wetting dispersant, and an anti-sticking agent to an aqueous anion resin, mixing at a rotation speed of 25 rpm for 5 minutes, then adding a filler powder, mixing at a rotation speed of 30 rpm for 8 minutes, finally adding a surfactant, a closed water-based curing agent, a preservative and a thickener, mixing at a rotation speed of 45 rpm for 10 minutes, and filtering the material with a 1500-mesh gauze to obtain the B component.

[0078] Example 2

[0079] The present embodiment provides an aqueous printing paste, which includes the following components in parts by weight: 38 parts of aqueous anionic resin (aqueous polyacrylate emulsion A), 11 parts of deionized water, 1.3 parts of pH regulator (diethanolamine), 20 parts of moisturizer (propylene glycol and diethylene glycol in a mass ratio of 3:1), 2.5 parts of emulsifier (305 emulsifier), 0.3 parts of defoaming agent, 0.3 parts of wetting and dispersing agent, 7 parts of anti-sticking agent (emulsified paraffin), 13 parts of filling powder (titanium dioxide and silicon dioxide in a mass ratio of 8:5), 1 part of surfactant, 1.5 parts of blocked aqueous curing agent, 0.8 parts of preservative (Kason), 1 part of thickener (alkali swellable thickener and PTF thickener in a mass ratio of 1:1) and 2.8 parts of color paste.

[0080] The water-based printing paste is prepared by the following method: adding pH regulator, deionized water, moisturizer, emulsifier, defoamer, wetting dispersant and anti-sticking agent to water-based anion resin, mixing at a speed of 25 rpm for 5 minutes, adding filler powder, mixing at a speed of 30 rpm for 8 minutes, adding surfactant, closed water-based curing agent, preservative and thickener, mixing at a speed of 45 rpm for 10 minutes, filtering with 1500 mesh gauze, adding color paste, mixing at a speed of 45 rpm for 5 minutes, and discharging to obtain the water-based printing paste.

[0081] Example 3

[0082] The present embodiment provides an aqueous printing paste, which includes the following components in mass percentage: 20% of component A, 75% of component B and 5% of color paste; the component A includes the following components in weight: 28 parts of aqueous anionic resin (aqueous polyacrylate emulsion A), 6 parts of deionized water, 0.5 parts of pH regulator (diethanolamine), 20 parts of moisturizer (propylene glycol and diethylene glycol in a mass ratio of 13:7), 2 parts of emulsifier (305 emulsifier), 0.3 parts of defoamer, 0.2 parts of wetting and dispersing agent, 8 parts of anti-sticking agent (emulsified paraffin), 31 parts of filling powder (titanium dioxide and silicon dioxide in a mass ratio of 30:1), 1 part of surfactant, 2.5 parts of closed water-based curing agent, 0.4 parts of preservative (Kason) and 1.5 parts of thickener (alkali swellable thickener and PTF thickener in a mass ratio of 1:2).

[0083] The B component includes the following components in parts by weight: 42 parts of aqueous anionic resin (aqueous polyacrylate emulsion A), 12 parts of deionized water, 0.8 parts of pH adjuster (diethanolamine), 15 parts of moisturizer (propylene glycol and diethylene glycol in a mass ratio of 4:1), 2.3 parts of emulsifier (305 emulsifier), 0.4 parts of defoamer, 0.5 parts of wetting and dispersing agent, 9 parts of anti-sticking agent (emulsified paraffin), 3 parts of filler powder (silicon dioxide), 2.5 parts of surfactant, 1.8 parts of blocked aqueous curing agent, 0.4 parts of preservative (Kason) and 1.5 parts of thickener (alkali swellable thickener and PTF thickener in a mass ratio of 1:2).

[0084] The component A is prepared by the following method: adding a pH regulator, deionized water, a moisturizer, an emulsifier, a defoamer, a wetting dispersant, and an anti-sticking agent to an aqueous anion resin, mixing at a rotation speed of 25 rpm for 5 minutes, then adding a filler powder, mixing at a rotation speed of 30 rpm for 8 minutes, and finally adding a surfactant, a closed water-based curing agent, a preservative and a thickener, mixing at a rotation speed of 45 rpm for 10 minutes, and filtering the material with a 1500-mesh gauze to obtain the component A.

[0085] The B component is prepared by the following method: adding a pH regulator, deionized water, a moisturizer, an emulsifier, a defoamer, a wetting dispersant, and an anti-sticking agent to an aqueous anion resin, mixing at a rotation speed of 25 rpm for 5 minutes, then adding a filler powder, mixing at a rotation speed of 30 rpm for 8 minutes, finally adding a surfactant, a closed water-based curing agent, a preservative and a thickener, mixing at a rotation speed of 45 rpm for 10 minutes, and filtering the material with a 1500-mesh gauze to obtain the B component.

[0086] Example 4

[0087] This embodiment provides an aqueous printing paste, which differs from Example 1 only in that the weight fractions of the aqueous anionic resin (aqueous polyacrylate emulsion A) in component A are adjusted to 32 parts, and the weight fractions of deionized water are adjusted to 6 parts; the weight fractions of the aqueous anionic resin (aqueous polyacrylate emulsion A) in component B are adjusted to 50 parts, and the weight fractions of deionized water are adjusted to 5 parts, and the other conditions are the same as in Example 1.

[0088] Example 5

[0089] This embodiment provides an aqueous printing paste, which differs from Embodiment 1 only in that the weight fraction of the aqueous anionic resin (aqueous polyacrylate emulsion A) in component A is adjusted to 25 parts, and the weight fraction of deionized water is adjusted to 13 parts; the weight fraction of the aqueous anionic resin (aqueous polyacrylate emulsion A) in component B is adjusted to 40 parts, and the weight fraction of deionized water is adjusted to 15 parts, and other conditions are the same as those in Embodiment 1.

[0090] Example 6

[0091] The present embodiment provides an aqueous printing paste, which differs from Embodiment 1 only in that the pH adjuster (diethanolamine) in component A is replaced by a pH adjuster of the same mass (ammonia water, mass percentage concentration of 28%), and the pH adjuster (diethanolamine) in component B is replaced by a pH adjuster of the same mass (ammonia water, mass percentage concentration of 28%), and other conditions are the same as in Embodiment 1.

[0092] Example 7

[0093] This embodiment provides a water-based printing paste, which differs from Example 1 only in that the emulsifier (305 emulsifier) ​​in component A is replaced with an emulsifier (OP-10 emulsifier) ​​of the same mass, and the emulsifier (305 emulsifier) ​​in component B is replaced with an emulsifier (OP-10 emulsifier) ​​of the same mass, and other conditions are the same as in Example 1.

[0094] Example 8

[0095] This embodiment provides a water-based printing paste, which differs from Example 1 only in that the anti-sticking agent (emulsified paraffin) in component A is replaced by an anti-sticking agent (emulsified silicone oil) of the same mass, and the anti-sticking agent (emulsified paraffin) in component B is replaced by an anti-sticking agent (emulsified silicone oil) of the same mass, and other conditions are the same as in Example 1.

[0096] Example 9

[0097] This embodiment provides a water-based printing paste, which differs from Embodiment 1 only in that the weight fraction of the blocked water-based curing agent in component A is adjusted to 3 parts, and the weight fraction of the blocked water-based curing agent in component B is adjusted to 3 parts, and other conditions are the same as those in Embodiment 1.

[0098] Example 10

[0099] This embodiment provides a water-based printing paste, which is different from the embodiment 1 only in that no blocked water-based curing agent is added to the A component and the B component, and other conditions are the same as those in the embodiment 1.

[0100] Embodiment 11

[0101] This embodiment provides a water-based printing paste, which differs from Embodiment 1 only in that the weight fraction of the anti-sticking agent (emulsified paraffin) in component A is adjusted to 2 parts, and the weight fraction of the anti-sticking agent (emulsified paraffin) in component B is adjusted to 2 parts, and other conditions are the same as those in Embodiment 1.

[0102] Example 12

[0103] This embodiment provides a water-based printing paste, which differs from Example 1 only in that the weight fraction of the anti-sticking agent (emulsified paraffin) in component A is adjusted to 10 parts, and the weight fraction of the anti-sticking agent (emulsified paraffin) in component B is adjusted to 15 parts, and other conditions are the same as Example 1.

[0104] Example 13

[0105] This embodiment provides a water-based printing paste, which differs from Embodiment 1 only in that the weight fraction of the emulsifier (305 emulsifier) ​​in component A is adjusted to 5 parts, and the weight fraction of the emulsifier (305 emulsifier) ​​in component B is adjusted to 5 parts, and other conditions are the same as those in Embodiment 1.

[0106] Embodiment 14

[0107] This embodiment provides a water-based printing paste, which differs from Example 1 only in that the weight fraction of the pH adjuster (diethanolamine) in component A is adjusted to 0.1 parts, and the weight fraction of the pH adjuster (diethanolamine) in component B is adjusted to 0.1 parts, and other conditions are the same as those in Example 1.

[0108] Embodiment 15

[0109] This embodiment provides a water-based printing paste, which differs from Embodiment 1 only in that the weight fraction of the pH adjuster (diethanolamine) in component A is adjusted to 2 parts, and the weight fraction of the pH adjuster (diethanolamine) in component B is adjusted to 2 parts, and other conditions are the same as those in Embodiment 1.

[0110] Example 16

[0111] This embodiment provides a water-based printing paste, which is different from Embodiment 1 only in that no emulsifier is added to Component A and Component B, and other conditions are the same as those in Embodiment 1.

[0112] Comparative Example 1

[0113] This comparative example provides an aqueous printing paste, which differs from Example 1 only in that the aqueous anionic resin (aqueous polyacrylate emulsion A) in component A is replaced by an aqueous anionic resin (aqueous polyacrylate emulsion B) of the same mass, and the aqueous anionic resin (aqueous polyacrylate emulsion A) in component B is replaced by an aqueous anionic resin (aqueous polyacrylate emulsion B) of the same mass, and other conditions are the same as in Example 1.

[0114] Application Example 1

[0115] This application example provides a printed fabric, which is prepared by the following method: component A, component B and color paste in the water-based printing paste provided in Example 1 are evenly mixed, and the mixture is evenly coated on a pure cotton fabric with an air permeability of 100% by using a printing device and printed by scraping three times. The mesh number of the screen used for printing is 2500 meshes, and the printing area on the pure cotton fabric accounts for 75%. After printing, the printed fabric is baked until the surface is dry and then removed, and then the surface of the printed area is baked at 150° C. for 2 minutes to obtain the printed fabric.

[0116] Application Example 2

[0117] This application example provides a printed fabric, which is prepared by the following method: the water-based printing paste provided in Example 2 is evenly coated on a pure cotton fabric with an air permeability of 100% using a printing device, and printing is performed by scraping three times, the mesh number of the screen used for printing is 2500 mesh, and the printing area on the pure cotton fabric accounts for 75%. After printing, it is baked until the surface is dry and then taken down, and then the surface of the printed area is baked at 150° C. for 2 minutes to obtain the printed fabric.

[0118] Application Examples 3 to 16

[0119] Application Examples 3 to 16 provide a printed fabric, which differs from Application Example 1 only in that the water-based printing paste provided in Example 1 is replaced by the water-based printing paste provided in Examples 3 to 16, respectively, and other conditions are the same as those in Application Example 1.

[0120] Comparative application example 1

[0121] Comparative Application Example 1 provides a printed fabric, which differs from Application Example 1 only in that the water-based printing paste provided in Example 1 is replaced by the water-based printing paste provided in Comparative Example 1, and other conditions are the same as those in Application Example 1.

[0122] The water-based printing paste provided in the above-mentioned Examples 1 to 16 and Comparative Example 1 was tested as follows:

[0123] Operability test: The water-based printing paste was tested for printing, and the mesh size of the screen used was 2500 mesh. After continuous printing for 90 minutes at room temperature (25°C), it was paused for 5 minutes, the condition of the water-based printing paste was recorded, and a new piece of cloth was printed and the blockage of the screen was observed.

[0124] The test results are shown in Table 1.

[0125] Table 1

[0126] Operational Example 1 Good fluidity, no thickening, no clogging Example 2 Good fluidity, slight thickening, no clogging Example 3 Good fluidity, slight thickening, no clogging Example 4 Good fluidity, no thickening, no clogging Example 5 Good fluidity, no thickening, no clogging Example 6 Normal fluidity, no anti-thickness, no clogging Example 7 Average fluidity, slight thickening, no clogging Example 8 Good fluidity, no thickening, no clogging Example 9 Good fluidity, no thickening, no clogging Example 10 Good fluidity, no thickening, no clogging Embodiment 11 Good fluidity, no thickening, no clogging Example 12 Good fluidity, no thickening, no clogging Example 13 Good fluidity, no thickening, no clogging Embodiment 14 Average fluidity, slight thickening, no clogging Embodiment 15 Average fluidity, slight thickening, no clogging Example 16 Poor fluidity, obvious thickening, slight plugging of the net Comparative Example 1 Good fluidity, no thickening, no clogging

[0127] The printed fabrics provided in the above application examples 1 to 16 and comparative application example 1 were tested as follows:

[0128] (1) Washing fastness: The printed fabrics were marked and placed in a Y(B)089T fully automatic shrinkage tester. The fabrics were washed five times using the 4N procedure according to GB / T 8629-2017 “Household washing and drying procedures for textile testing” and air-dried. The discoloration of the printed fabrics after washing and any defects that may affect the appearance quality, such as cracking, blistering, peeling, or shedding, were observed and the data were recorded.

[0129] (2) Dry and wet rubbing fastness: Dry rubbing fastness and wet rubbing fastness tests were conducted in accordance with GB / T 3920-2008 Textiles - Tests for Colour Fastness - Colour Fastness to Rubbing. The number of rubbings was 10 for each test. The staining grade of the rubbing cloth was evaluated and the data was recorded.

[0130] (3) Adhesion test: Fold the printed fabric in half, place it in a digital drying oven at a set temperature of 60°C, press it with a 5 kg weight for 24 hours, then cool it at room temperature (25°C) and tear it apart. Record the adhesion status of the printed area placed in the digital drying oven at a set temperature of 60°C.

[0131] (4) Air permeability test: Test according to T / PTAC 006-2020 "Test method for air permeability of printed membranes of textiles", set the pressure difference to 200 Pa, calculate the air permeability and record the data.

[0132] The test results are shown in Table 2.

[0133] Table 2

[0134]

[0135]

[0136] It can be seen from the contents of Table 1 and Table 2 that the air permeability of the printed fabrics made from the water-based printing pastes provided in Examples 1 to 16 is ≥ 69%.

[0137] Compared with Example 1, if the weight percentage of the aqueous anionic resin in the aqueous printing paste is too high (Example 4), the air permeability of the prepared printed fabric decreases; if the weight percentage of the aqueous anionic resin in the aqueous printing paste is too low (Example 5), although the air permeability of the prepared printed fabric is good, the washing fastness and wet friction fastness are reduced to a certain extent. It can be seen that in the present invention, by controlling the weight percentage of the aqueous anionic resin in the aqueous printing paste within the range of 38 to 40 parts, the performance of the prepared aqueous printing paste is better.

[0138] Compared with Example 1, when diethanolamine is selected as the pH regulator, the fluidity of the prepared water-based printing paste is better than that when ammonia is selected as the pH regulator (Example 6).

[0139] Compared with Example 1, the fluidity and anti-thickening state of the water-based printing paste prepared by selecting emulsifier 305 as the emulsifier are better than the case where OP-10 emulsifier is selected as the emulsifier (Example 7).

[0140] Compared with Example 1, the adhesion of the water-based printing paste prepared by using emulsified paraffin as the anti-sticking agent is better than that of the case where emulsified silicone oil is selected as the anti-sticking agent (Example 8).

[0141] Compared with Example 1, if the weight percentage of the blocked water-based curing agent in the water-based printing paste is too high (Example 9), the washing fastness, dry rubbing fastness and wet rubbing fastness of the printed fabric obtained are not significantly improved, and it causes a waste of raw materials. It can be seen that the weight percentage of the blocked water-based curing agent in the water-based printing paste is preferably 1 to 2 parts.

[0142] Compared with Example 1, if the blocked water-based curing agent is not added to the water-based printing paste (Example 10), the washing fastness and wet rubbing fastness of the prepared printed fabric are both reduced.

[0143] Compared with Example 1, if the weight percentage of the anti-adhesive in the water-based printing paste is low (Example 11), the prepared printed fabric has more adhesion and the anti-adhesive property is significantly reduced; if the weight percentage of the anti-adhesive in the water-based printing paste is high (Example 12), the air permeability of the prepared printed fabric is reduced to a certain extent. It can be seen that in the present invention, by controlling the weight percentage of the anti-adhesive in the water-based printing paste within the range of 7 to 9 parts, the prepared water-based printing paste has better performance.

[0144] Compared with Example 1, if the weight percentage of the emulsifier in the water-based printing paste is higher (Example 13), the water-based printing paste can maintain good operability, but the permeability will be further enhanced, resulting in the water-based printing paste penetrating more thoroughly on the fabric fibers and making the surface of the printed area thinner, thereby affecting the washing fastness of the prepared printed fabric. It can be seen that in the present invention, by controlling the weight percentage of the emulsifier in the water-based printing paste within the range of 2 to 3 parts, the performance of the prepared water-based printing paste is better.

[0145] Compared with Example 1, if the weight percentage of the pH regulator in the water-based printing paste is too low (Example 14) or too high (Example 15), the stability of the water-based printing paste will be reduced. The most intuitive manifestation is that the fluidity of the slurry becomes poor during operation and the reverse thickening is obvious. It can be seen that in the present invention, by controlling the weight percentage of the pH regulator in the water-based printing paste within the range of 0.5 to 1.5 parts, the water-based printing paste prepared has better performance.

[0146] Compared with Example 1, if no emulsifier is added to the water-based printing paste (Example 13), the fluidity and permeability of the water-based printing paste are significantly affected, thereby reducing the operability of the water-based printing paste and the air permeability of the printed fabric.

[0147] Compared with Example 1 and Comparative Example 1, if the glass transition temperature of the aqueous polyacrylate emulsion in the aqueous printing paste is ≥10° C., the air permeability of the prepared printed fabric is better.

[0148] The applicant declares that the present invention illustrates a water-based printing paste and its application through the above-mentioned embodiments, but the present invention is not limited to the above-mentioned embodiments, that is, it does not mean that the present invention must rely on the above-mentioned embodiments to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of various raw materials of the product of the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

Claims

1. A water-based printing paste, characterized in that: The water-based printing paste comprises the following components by weight: 35-45 parts of water-based anion resin, 4-15 parts of water, 0.05-2 parts of pH regulator, 10-20 parts of moisturizer, 1-15 parts of anti-adhesive agent and 0.5-2 parts of thickener; The aqueous anionic resin includes aqueous polyacrylate emulsion, and the glass transition temperature of the aqueous polyacrylate emulsion is ≥10°C.

2. The water-based printing paste according to claim 1, characterized in that: The solid content of the aqueous polyacrylate emulsion is ≤50%; Preferably, the pH adjuster includes ammonia or diethanolamine, more preferably diethanolamine; Preferably, the humectant comprises propylene glycol and / or diethylene glycol; Preferably, the raw materials for preparing the water-based printing paste further include an emulsifier; Preferably, the weight proportion of the emulsifier is 2 to 5 parts; Preferably, the emulsifier includes 305 emulsifier or OP-10 emulsifier, and more preferably 305 emulsifier; Preferably, the anti-sticking agent includes emulsified paraffin or emulsified silicone oil, and more preferably emulsified paraffin; Preferably, the thickener comprises a PTF thickener and / or an alkali swelling thickener.

3. The water-based printing paste according to claim 1 or 2, characterized in that: The raw materials for preparing the water-based printing paste also include a closed water-based curing agent; Preferably, the blocked water-based curing agent comprises blocked polyhexamethylene diisocyanate; Preferably, the weight proportion of the blocked water-based curing agent is 0 to 3 parts, more preferably 1 to 2 parts.

4. The water-based printing paste according to any one of claims 1 to 3, characterized in that: The raw materials for preparing the water-based printing paste also include filling powder; Preferably, the weight proportion of the filler powder is 0.1 to 20 parts; Preferably, the filler powder comprises silicon dioxide and / or titanium dioxide.

5. The water-based printing paste according to any one of claims 1 to 4, characterized in that: The raw materials for preparing the water-based printing paste also include any one of a defoamer, a wetting and dispersing agent, a surfactant or a preservative, or a combination of at least two of them.

6. The water-based printing paste according to claim 5, characterized in that: The defoamer includes a polyether defoamer; Preferably, the weight portion of the defoaming agent is 0.2 to 0.5 parts; Preferably, the wetting and dispersing agent comprises a sodium salt dispersant; Preferably, the weight portion of the wetting and dispersing agent is 0.2 to 0.5 parts.

7. The water-based printing paste according to claim 5 or 6, characterized in that: The surfactant includes a nonionic surfactant; Preferably, the weight proportion of the surfactant is 1 to 3 parts; Preferably, the preservative comprises Kathon; Preferably, the weight portion of the preservative is 0.1 to 1 part; Preferably, the raw materials for preparing the water-based printing paste also include color paste.

8. The water-based printing paste according to any one of claims 1 to 7, characterized in that: The water-based printing paste comprises the following components by mass percentage: 20% to 25% of component A, 70% to 75% of component B and 0% to 5% of color paste; Preferably, the component A comprises the following components by weight: 25-35 parts of aqueous anion resin, 5-10 parts of water, 0.5-1.5 parts of pH adjuster, 15-20 parts of moisturizer, 1-3 parts of emulsifier, 0.2-0.5 parts of defoamer, 0.2-0.5 parts of wetting dispersant, 4-8 parts of anti-adhesive, 25-32 parts of filler powder, 1-3 parts of surfactant, 2-4 parts of blocked aqueous curing agent, 0.1-0.4 parts of preservative and 0.5-2 parts of thickener; Preferably, the B component includes the following components in parts by weight: 40-50 parts of aqueous anion resin, 10-15 parts of water, 0.5-1.5 parts of pH adjuster, 12-18 parts of humectant, 1-3 parts of emulsifier, 0.2-0.5 parts of defoamer, 0.2-0.5 parts of wetting dispersant, 7-9 parts of anti-sticking agent, 6-10 parts of filler powder, 1-3 parts of surfactant, 2-4 parts of blocked aqueous curing agent, 0.1-0.4 parts of preservative and 0.5-2 parts of thickener.

9. The water-based printing paste according to claim 8, characterized in that: The filler powder in component A includes titanium dioxide and silicon dioxide; Preferably, the filler powder in the B component includes silicon dioxide.

10. Use of the water-based printing paste according to any one of claims 1 to 9 in the preparation of printed fabrics.

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