Clothing plateless printing cold ironing ink and preparation method thereof

Abstract

The invention discloses costume plate-free printing cold stamping ink and a preparation method thereof, and the costume plate-free printing cold stamping ink comprises the following components in parts by mass: urethane acrylate, water-soluble acrylic resin, water-based polymer emulsion, 2-amino-2-3-dimethyl butyramide, a filler, an auxiliary agent, benzoin dimethyl ether, bis (2, 4, 6-trimethyl-1, 3-pentanedione), a solvent, a solvent and a solvent. The cold-ironing ink for costume plate-free printing, disclosed by the invention, has the advantages of strong adhesive force, more stability in storage, water washing resistance, wear resistance, capability of being firmly combined with fabrics, difficulty in falling off and dry cracking and long printing validity period, and patterns printed on costumes are kept unchanged for a long time.

Description

Technical Field

[0001] The invention relates to the technical field of ink, in particular to a cold-foil ink for plateless printing of clothing and a preparation method thereof. Background Art

[0002] Clothing plateless printing cold stamping technology is a new printing method that has developed rapidly in recent years. With its fast, flexible, fine and clean characteristics, it adapts to the current clothing market's needs for personalization, small batches, multiple varieties, high precision and green environmental protection, and has broad development prospects. Cold stamping ink is required in the process of clothing plateless printing cold stamping, but the existing ink has problems such as easy shedding, cracking, and short printing validity period, which can easily cause the printed pattern on the clothing to fall off or crack, affecting the appearance of the clothes. Summary of the invention

[0003] In order to solve the above problems, one of the purposes of the present invention is to provide a cold stamping ink for clothing plateless printing which is not easy to fall off, crack and has a long printing validity period. The second purpose of the present invention is to provide a method for preparing the cold stamping ink for clothing plateless printing.

[0004] One of the purposes of this application is achieved by the following technical solution:

[0005] A cold-stamping ink for plateless printing of clothing, comprising the following components by weight: 8-12 parts of polyurethane acrylate, 14-18 parts of water-soluble acrylic resin, 4-12 parts of aqueous polymer emulsion, 3-7 parts of 2-amino-2-3-dimethylbutyramide, 5-9 parts of filler, 2-4 parts of auxiliary agent, 1-3 parts of benzoin dimethyl ether, 1-3 parts of bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, 3-5 parts of surfactant, 1-5 parts of castor oil and 30-50 parts of 60-80% ethanol aqueous solution;

[0006] The filler is obtained by mixing modified vermiculite, hydrophilic modified kaolin and trehalose in a mass ratio of 1:(2-3):(3-4).

[0007] Furthermore, the modified vermiculite is prepared by the following method: vermiculite is crushed to obtain vermiculite powder, 20-40 ml of 5 mol / L sulfuric acid solution is added to 20 ml of vermiculite powder, the mixture is rapidly stirred and heated to 80° C. and kept warm for 2 h to obtain acid-modified vermiculite powder, the acid-modified vermiculite powder is filtered and dried, and then 0.1-0.3 ml of silane coupling agent KH570 is added and stirred at 45° C. for 1 h to obtain modified vermiculite powder.

[0008] Furthermore, the hydrophilic modified kaolin is prepared by the following method: 5g of uncalcined kaolin is mixed with 0.5-1g of titanate coupling agent, then 10-20ml of anhydrous ethanol is added, ground for 30-60min, dried and ethanol is recovered to obtain the hydrophilic modified kaolin.

[0009] Furthermore, the auxiliary agent is a mixture of polysiloxane solution and ultra-high molecular weight polydimethylsiloxane.

[0010] Furthermore, the surfactant is at least one of fatty acid glyceride or lecithin.

[0011] The second purpose of this application is achieved by the following technical solution:

[0012] The preparation method of the above-mentioned clothing plateless printing cold perm ink comprises the following steps: mixing polyurethane acrylate, water-soluble acrylic resin, 2-amino-2-3-dimethylbutyramide, aqueous polymer emulsion, filler and additive in parts by weight, heating to 40-60° C., stirring for 30-60 min, then adding benzoin dimethyl ether, bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, surfactant, 60-80% ethanol aqueous solution and castor oil in parts by weight, stirring in a disperser for 30-40 min, grinding on a ball mill for 6-8 h, and filtering to obtain clothing plateless printing cold perm ink.

[0013] Furthermore, the stirring speed of the disperser is 1500-3000 r / min.

[0014] Furthermore, the grinding speed of the ball mill is 300-700 r / min.

[0015] Furthermore, the filtration accuracy is 0.22um.

[0016] The beneficial effects are as follows: the cold-stamping ink for clothing plateless printing of the present application uses polyurethane acrylate, water-soluble acrylic resin and water-based polymer emulsion as main raw materials, and adds 2-amino-2-3-dimethylbutyramide to adjust the pH and cross-linking degree of the ink, thereby significantly improving the internal binding force of the ink; benzoin dimethyl ether and bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide can absorb energy to generate free radicals, and the free radicals collide with polyurethane acrylate at high speed, transferring energy to polyurethane acrylate, thereby breaking the double bond of polyurethane acrylate, and at this time, the polyurethane acrylate after the double bond is broken reacts with castor oil to form a three-dimensional cross-linked structure, so that the ink has better adhesion to the fabric, and castor oil can also It can play a role of lubrication and dilution, so that the ink has good penetration ability; at the same time, fillers, polysiloxane solution and ultra-high molecular weight polydimethylsiloxane are added, and the filler is obtained by mixing modified vermiculite, hydrophilic modified kaolin and trehalose. The three work together to improve the adhesion of the cured ink and increase the stability and saturation of the ink; the polysiloxane solution can make the ink more resistant to water washing, and can dry quickly at 20-35°C, effectively improving the printing suitability of the ink; ultra-high molecular weight polydimethylsiloxane can increase the smoothness and wear resistance of the ink; the clothing plateless printing cold stamping ink of the present application can be firmly combined with the fabric, is not easy to fall off, crack, and has a long printing validity period, so that the pattern printed on the clothing remains unchanged for a long time. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with specific embodiments so that those skilled in the art can understand the present invention more clearly.

[0018] The following embodiments are only used to illustrate the present invention, but are not limited to the scope of the present invention. Based on the specific embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work belong to the protection scope of the present invention.

[0019] In the examples of the present invention, unless otherwise specified, all raw material components are commercially available products well known to those skilled in the art; in the examples of the present invention, unless otherwise specified, the technical means used are conventional means well known to those skilled in the art.

[0020] Source of raw materials:

[0021] Polyurethane acrylate was purchased from Guangdong Wengjiang Chemical Reagent Co., Ltd.;

[0022] Water-soluble acrylic resin was purchased from Guangdong Keding Functional Materials Co., Ltd.;

[0023] Aqueous polymer emulsion was purchased from Anhui Kebang Resin Technology Co., Ltd.;

[0024] 2-Amino-2-3-dimethylbutanamide was purchased from Hubei Nona Technology Co., Ltd.;

[0025] Vermiculite was purchased from Shijiazhuang Jinli Mining Co., Ltd.;

[0026] Sulfuric acid, purchased from Dongguan Fengsheng Technology Co., Ltd.;

[0027] Silane coupling agent KH570, purchased from Shandong Yuanjin New Materials Co., Ltd.;

[0028] Kaolin was purchased from Shanghai Yuanjiang Chemical Co., Ltd.

[0029] Titanate coupling agent, purchased from Yangzhou Lida Resin Co., Ltd.;

[0030] Anhydrous ethanol was purchased from Foshan Changxing New Materials Co., Ltd.;

[0031] Trehalose was purchased from Guangzhou Huayu Biotechnology Co., Ltd.;

[0032] Polysiloxane solution, purchased from

[0033] Ultra-high molecular weight polydimethylsiloxane, purchased from

[0034] Benzoin dimethyl ether was purchased from Guangzhou Shanghe Chemical Technology Co., Ltd.;

[0035] Bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide was purchased from Wuhan Jipan Yibang Biotechnology Co., Ltd.;

[0036] Fatty acid glycerides were purchased from Wuhan Runxingyuan Technology Co., Ltd.;

[0037] Lecithin was purchased from Shandong Gushuo Biotechnology Co., Ltd.;

[0038] Castor oil was purchased from Guangzhou Zhichun Chemical Co., Ltd.;

[0039] The remaining reagents are commercially available.

[0040] Example 1

[0041] The present embodiment provides a cold stamping ink for plateless printing of clothing, which comprises the following components in parts by mass: 8 parts of polyurethane acrylate, 14 parts of water-soluble acrylic resin, 12 parts of aqueous polymer emulsion, 3 parts of 2-amino-2-3-dimethylbutyramide, 5 parts of filler, 2 parts of auxiliary agent, 1 part of benzoin dimethyl ether, 1 part of bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, 3 parts of surfactant, 1 part of castor oil and 50 parts of 60-80% ethanol aqueous solution;

[0042] The filler is obtained by mixing modified vermiculite, hydrophilic modified kaolin and trehalose in a mass ratio of 1:2:3.

[0043] The modified vermiculite is prepared by the following method: vermiculite is crushed to obtain vermiculite powder, 20 ml of 5 mol / L sulfuric acid solution is added to 20 ml of vermiculite powder, the mixture is rapidly stirred and heated to 80° C. and then kept warm for 2 h to obtain acid-modified vermiculite powder, the acid-modified vermiculite powder is filtered and dried, and then 0.1 ml of silane coupling agent KH570 is added and stirred at 45° C. for 1 h to obtain modified vermiculite powder.

[0044] The hydrophilic modified kaolin was prepared by the following method: 5 g of uncalcined kaolin was mixed with 0.5 g of titanate coupling agent, and then 10 ml of anhydrous ethanol was added, ground for 30 minutes, dried and ethanol was recovered to obtain the hydrophilic modified kaolin.

[0045] The auxiliary agent is obtained by mixing a polysiloxane solution and ultra-high molecular weight polydimethylsiloxane in a mass ratio of 1:1.

[0046] The surfactant is lecithin.

[0047] The preparation method of the above-mentioned clothing plateless printing cold perm ink comprises the following steps: mixing polyurethane acrylate, water-soluble acrylic resin, 2-amino-2-3-dimethylbutyramide, aqueous polymer emulsion, filler and additive in parts by weight, heating to 40° C., stirring for 30 minutes, then adding benzoin dimethyl ether, bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, surfactant, 60% ethanol aqueous solution and castor oil in parts by weight, stirring at a stirring speed of 1500r / min for 30 minutes in a disperser, grinding at a grinding speed of 300r / min for 6 hours on a ball mill, filtering to obtain clothing plateless printing cold perm ink, wherein the filtration accuracy is 0.22um.

[0048] Example 2

[0049] The present embodiment provides a cold stamping ink for plateless printing of clothing, which comprises the following components in parts by mass: 12 parts of polyurethane acrylate, 18 parts of water-soluble acrylic resin, 4 parts of aqueous polymer emulsion, 7 parts of 2-amino-2-3-dimethylbutyramide, 9 parts of filler, 4 parts of auxiliary agent, 3 parts of benzoin dimethyl ether, 3 parts of bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, 5 parts of surfactant, 5 parts of castor oil and 30 parts of 60-80% ethanol aqueous solution;

[0050] The filler is obtained by mixing modified vermiculite, hydrophilic modified kaolin and trehalose in a mass ratio of 1:3:4.

[0051] The modified vermiculite is prepared by the following method: vermiculite is crushed to obtain vermiculite powder, 40 ml of 5 mol / L sulfuric acid solution is added to 20 ml of vermiculite powder, the mixture is rapidly stirred and heated to 80°C and kept warm for 2 hours to obtain acid-modified vermiculite powder, the acid-modified vermiculite powder is filtered and dried, and then 0.3 ml of silane coupling agent KH570 is added and stirred at 45°C for 1 hour to obtain modified vermiculite powder.

[0052] The hydrophilic modified kaolin was prepared by the following method: 5 g of uncalcined kaolin was mixed with 1 g of titanate coupling agent, and then 20 ml of anhydrous ethanol was added, ground for 60 minutes, dried and ethanol was recovered to obtain the hydrophilic modified kaolin.

[0053] The auxiliary agent is obtained by mixing polysiloxane solution and ultra-high molecular weight polydimethylsiloxane in a mass ratio of 1:3.

[0054] The surfactant is fatty acid glyceride.

[0055] The method for preparing the above-mentioned cold stamping ink for plateless printing of clothing comprises the following steps:

[0056] Mix polyurethane acrylate, water-soluble acrylic resin, 2-amino-2-3-dimethylbutyramide, aqueous polymer emulsion, filler and additives in parts by weight, heat to 60°C, stir for 60 minutes, add benzoin dimethyl ether, bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, surfactant, 80% ethanol aqueous solution and castor oil in parts by weight, stir at a stirring speed of 3000 r / min for 40 minutes in a disperser, grind at a grinding speed of 700 r / min for 8 hours in a ball mill, and filter to obtain clothing plateless printing cold stamping ink, wherein the filtration accuracy is 0.22 um.

[0057] Example 3

[0058] The present embodiment provides a cold stamping ink for plateless printing of clothing, which comprises the following components in parts by mass: 10 parts of polyurethane acrylate, 16 parts of water-soluble acrylic resin, 8 parts of aqueous polymer emulsion, 5 parts of 2-amino-2-3-dimethylbutyramide, 7 parts of filler, 3 parts of auxiliary agent, 2 parts of benzoin dimethyl ether, 2 parts of bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, 4 parts of surfactant, 3 parts of castor oil and 40 parts of 70% ethanol aqueous solution;

[0059] The filler is obtained by mixing modified vermiculite, hydrophilic modified kaolin and trehalose in a mass ratio of 1:3:3.

[0060] The modified vermiculite is prepared by the following method: vermiculite is crushed to obtain vermiculite powder, 30 ml of 5 mol / L sulfuric acid solution is added to 20 ml of vermiculite powder, the mixture is rapidly stirred and heated to 80°C and kept warm for 2 hours to obtain acid-modified vermiculite powder, the acid-modified vermiculite powder is filtered and dried, and then 0.2 ml of silane coupling agent KH570 is added and stirred at 45°C for 1 hour to obtain modified vermiculite powder.

[0061] The hydrophilic modified kaolin was prepared by the following method: 5 g of uncalcined kaolin was mixed with 0.7 g of titanate coupling agent, and then 15 ml of anhydrous ethanol was added, ground for 45 minutes, dried and ethanol was recovered to obtain the hydrophilic modified kaolin.

[0062] The auxiliary agent is obtained by mixing a polysiloxane solution and ultra-high molecular weight polydimethylsiloxane in a mass ratio of 1:2.

[0063] The surfactant is obtained by mixing fatty acid glyceride and lecithin in a mass ratio of 1:1.

[0064] The method for preparing the above-mentioned cold stamping ink for plateless printing of clothing comprises the following steps:

[0065] Mix polyurethane acrylate, water-soluble acrylic resin, 2-amino-2-3-dimethylbutyramide, aqueous polymer emulsion, filler and additives in parts by weight, heat to 50°C, stir for 45 minutes, add benzoin dimethyl ether, bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, surfactant, 70% ethanol aqueous solution and castor oil in parts by weight, stir for 35 minutes at a stirring speed of 2000 r / min in a disperser, grind for 7 hours on a ball mill at a grinding speed of 500 r / min, and filter to obtain clothing plateless printing cold stamping ink, wherein the filtration accuracy is 0.22 um.

[0066] Comparative Example 1

[0067] This comparative example is different from Example 3 in that 2-amino-2-3-dimethylbutyramide is not added, and the other components and experimental steps are the same as those of Example 3.

[0068] Comparative Example 2

[0069] This comparative example is different from Example 3 in that benzoin dimethyl ether and bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide are not added, and the other components and experimental steps are the same as those in Example 3.

[0070] Comparative Example 3

[0071] The difference between this comparative example and Example 3 is that castor oil is not added, and the other components and experimental steps are the same as those of Example 3.

[0072] Comparative Example 4

[0073] The difference between this comparative example and Example 3 is that no filler is added, and the other components and experimental steps are the same as those of Example 3.

[0074] Comparative Example 5

[0075] The difference between this comparative example and Example 3 is that no polysiloxane solution is added, and the other components and experimental steps are the same as those of Example 3.

[0076] Comparative Example 6

[0077] The difference between this comparative example and Example 3 is that ultra-high molecular weight polydimethylsiloxane is not added, and the other components and experimental steps are the same as those of Example 3.

[0078] Performance Testing

[0079] The inks prepared in the above-mentioned Examples 1 to 3 and Comparative Examples 1 to 3 were respectively tested for performance, and the testing method was as follows:

[0080] Ink viscosity: measured using Japan Aiande SV-10 oscillation viscometer;

[0081] Ink storage stability: 100 ml of the ink prepared in Examples 1 to 3 and Comparative Examples 1 to 3 were placed in different bottles, respectively, and stored at room temperature for 180 days, and the bottom of each bottle was checked for precipitation.

[0082] The curing rate test uses a domestic wide-format printer equipped with a UV curing lamp with a wavelength of 395nm and Ricoh's fifth-generation industrial nozzle MH5420; different printing speeds are set to observe the curing condition of the ink; the coating is pressed with fingers to see if there is any discoloration and stickiness caused by incomplete curing.

[0083] Adhesion: Refer to GBT9286-1998 "Scratch Test of Paint Film" for testing, observe the test results, and evaluate the adhesion level. Adhesion level 1 is the best and level 4 is the worst;

[0084] Abrasion resistance: Based on the RCA paper tape abrasion test, load 175g force, 300 circles, observe whether the ink on the clothing falls off or is damaged;

[0085] Washing color fastness: The obtained water-based nano pigment ink is sprayed onto the fabric by an inkjet printer, and then the fabric is left to stand naturally for 30 minutes. Then, the washing color fastness is tested using a SW-12 washing color fastness tester according to the relevant standards of GB / T3291.3-1997. The washing color fastness of level 1 is the worst and level 4 is the best.

[0086] Visually inspect the printed pattern after six months.

[0087] Table 1 Ink performance test results

[0088]

[0089]

[0090] From the above experimental data, it can be seen that compared with comparative examples 1 to 6, the viscosity of the ink prepared in Examples 1 to 3 is significantly higher than that of the comparative examples, with strong adhesion, no precipitation, more stable storage, good pattern printing effect, water-washing resistance and wear resistance. However, since comparative example 1 did not add 2-amino-2-3-dimethylbutyramide, comparative example 2 did not add benzoin dimethyl ether and bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, comparative example 3 did not add castor oil, and comparative example 4 did not add fillers, all of which led to a decrease in ink viscosity, a decrease in adhesion, and precipitation, causing the pattern printed on the clothing to fall off and crack; comparative example 5 did not add polysiloxane solution, resulting in a decrease in the water-washing fastness grade of the ink; comparative example 6 did not add ultra-high molecular weight polydimethylsiloxane, resulting in a decrease in the wear resistance of the ink; the above problems may be due to the lack of certain components, which will affect the performance of the entire ink system, causing the synergistic effect between the components inside the ink to decrease or even lose, and ultimately resulting in the comprehensive technical effect of the comparative example not being as good as that of the embodiment.

[0091] The above is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A cold stamping ink for plateless printing of clothing, characterized in that: The composition includes the following components in parts by mass: 8-12 parts of polyurethane acrylate, 14-18 parts of water-soluble acrylic resin, 4-12 parts of water-based polymer emulsion, 3-7 parts of 2-amino-2-3-dimethylbutyramide, 5-9 parts of filler, 2-4 parts of auxiliary agent, 1-3 parts of benzoin dimethyl ether, 1-3 parts of bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, 3-5 parts of surfactant, 1-5 parts of castor oil and 30-50 parts of 60-80% ethanol aqueous solution; The filler is obtained by mixing modified vermiculite, hydrophilic modified kaolin and trehalose in a mass ratio of 1:(2-3):(3-4).

2. The method for preparing cold stamping ink for garment plateless printing according to claim 1, characterized in that: The modified vermiculite is prepared by the following method: vermiculite is crushed to obtain vermiculite powder, 20-40 ml of 5 mol / L sulfuric acid solution is added to 20 ml of vermiculite powder, the mixture is rapidly stirred and heated to 80° C. and then kept warm for 2 hours to obtain acid-modified vermiculite powder, the acid-modified vermiculite powder is filtered and dried, and then 0.1-0.3 ml of silane coupling agent KH570 is added and stirred at 45° C. for 1 hour to obtain modified vermiculite powder.

3. The method for preparing cold stamping ink for garment plateless printing according to claim 1, characterized in that: The hydrophilic modified kaolin is prepared by the following method: 5-10g of uncalcined kaolin is mixed with 0.5g of titanate coupling agent, then 10-20ml of anhydrous ethanol is added, ground for 30-60min, dried and ethanol is recovered to prepare the hydrophilic modified kaolin.

4. The method for preparing cold stamping ink for garment plateless printing according to claim 1, characterized in that: The auxiliary agent is a mixture of polysiloxane solution and ultra-high molecular weight polydimethylsiloxane.

5. The method for preparing cold stamping ink for garment plateless printing according to claim 1, characterized in that: The surfactant is at least one of fatty acid glyceride or lecithin.

6. The method for preparing cold stamping ink for plateless printing of clothing according to any one of claims 1 to 5, characterized in that: The following steps are involved: The polyurethane acrylate, water-soluble acrylic resin, 2-amino-2-3-dimethylbutyramide, aqueous polymer emulsion, filler and additives in the above-mentioned mass fractions are mixed, heated to 40-60° C., stirred for 30-60 min, and then the above-mentioned mass fractions of benzoin dimethyl ether, bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, surfactant, 60-80% ethanol aqueous solution and castor oil are added, stirred in a disperser for 30-40 min, ground in a ball mill for 6-8 h, and filtered to obtain clothing plateless printing cold perm ink.

7. The method for preparing cold stamping ink for garment plateless printing according to claim 6, characterized in that: The stirring speed of the disperser is 1500-3000 r / min.

8. The method for preparing cold stamping ink for plateless printing of clothing according to claim 6, characterized in that: The grinding speed of the ball mill is 300-700 r / min.

9. The method for preparing cold stamping ink for plateless printing of clothing according to claim 6, characterized in that: The filtering accuracy is 0.22um.

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