阅读说明：本技术 一种用于涤棉混纺织物的喷墨墨水及其制备方法 (Ink-jet ink for polyester-cotton blended fabric and preparation method thereof ) 是由 袁福顺 孙志国 秦国胜 于 2019-12-03 设计创作，主要内容包括：本发明公开了一种用于涤棉混纺织物的喷墨墨水,按重量百分比计,其由以下组分制成：染料：2.0-30.0％、分散剂：1.0-15.0％、粘度调节剂：10.0-35.0％、表面张力控制剂：0.2-2.0％、pH控制剂：0.1-2.0％、杀菌剂：0.1-1.0％、去离子水：其余量。所述喷墨墨水的制备步骤包括：将分散剂加入去离子水中,搅拌均匀后加入染料,继续搅拌均匀后向其中加入粘度调节剂、表面张力控制剂、pH控制剂以及杀菌剂,搅拌混合均匀后得浆料；以及将浆料研磨至浆料粒径D90为300nm左后后过滤即得所述喷墨墨水。本发明的喷墨墨水同时使用还原染料和分散染料,通过纳米分散技术将二者同时稳定分散在墨水中,使得还原染料和分散染料共同作用实现涤棉织物的发色,有效解决采用单一种类的染料不能兼顾两种纤维的问题。(The invention discloses an ink-jet ink for polyester-cotton blended fabric, which is prepared from the following components in percentage by weight: dye: 2.0-30.0%, dispersant: 1.0-15.0%, viscosity modifier: 10.0 to 35.0%, surface tension controlling agent: 0.2-2.0%, pH controlling agent: 0.1-2.0%, bactericide: 0.1-1.0%, deionized water: the balance being. The preparation steps of the ink-jet ink comprise: adding a dispersing agent into deionized water, adding a dye after uniformly stirring, adding a viscosity regulator, a surface tension control agent, a pH control agent and a bactericide after continuously and uniformly stirring, and uniformly stirring and mixing to obtain a slurry; and grinding the slurry until the particle size D90 of the slurry is about 300nm, and filtering to obtain the ink-jet ink. The jet ink disclosed by the invention simultaneously uses the vat dye and the disperse dye, and the vat dye and the disperse dye are simultaneously and stably dispersed in the ink by virtue of a nano-dispersion technology, so that the color development of the polyester-cotton fabric is realized under the combined action of the vat dye and the disperse dye, and the problem that two fibers cannot be simultaneously taken into consideration by adopting a single type of dye is effectively solved.)

1. An ink-jet ink for polyester-cotton blended fabric is characterized in that: the composite material is prepared from the following components in percentage by weight: dye: 2.0-30.0%, dispersant: 1.0-15.0%, viscosity modifier: 10.0 to 35.0%, surface tension controlling agent: 0.2-2.0%, pH controlling agent: 0.1-2.0%, bactericide: 0.1-1.0%, deionized water: the balance being.

2. The inkjet ink of claim 1, wherein: the dye is a vat dye and a disperse dye.

3. The inkjet ink of claim 2, wherein: the vat dye is at least one of C.I. vat yellow 1, C.I. vat yellow 3, C.I. vat orange 9, C.I. vat red 1, C.I. vat red 29, C.I. vat red 42, C.I. vat violet 1, C.I. vat blue 20, C.I. vat blue 64, C.I. vat brown 25 and C.I. vat black 9.

4. The inkjet ink of claim 2, wherein: the disperse dye is at least one of C.I. disperse blue 93, C.I. disperse blue 284, C.I. disperse blue 360, C.I. disperse blue 359, C.I. disperse red 153:1, C.I. disperse red 92, C.I. disperse orange 73, C.I. disperse orange 76, C.I. disperse brown 27, C.I. disperse yellow 74 and C.I. disperse yellow 114.

5. The inkjet ink of any one of claims 1-4, wherein: the dispersing agent is at least one of acrylic acid-acrylate copolymer, acrylic acid-styrene copolymer, lignosulfonate, 1-naphthalene sulfonic acid sodium salt, 2-naphthalene sulfonic acid sodium salt, sodium sulfonate, magnesium sulfonate, calcium sulfonate, alkyl polyoxyethylene ether phosphate and anionic polyacrylamide.

6. The inkjet ink of any one of claims 1-4, wherein: the viscosity regulator is at least one of glycerol, ethylene glycol, diethylene glycol, isopropanol, isobutanol, 1, 2-hexanediol, 1, 2-propylene glycol, ethylene glycol butyl ether, ethylene glycol tertiary butyl ether, diethylene glycol methyl ether, diethylene glycol diethyl ether, propylene glycol methyl ether, dipropylene glycol methyl ether, polyvinylpyrrolidone, betaine, polyethylene glycol 400, polyethylene glycol 1000, polyethylene glycol 8000 and 1, 5-pentanediol.

7. The inkjet ink of any one of claims 1-4, wherein: the surface tension control agent is at least one of nonionic surfactant, organosilicon surfactant, carboxylic acid betaine, sulfobetaine and dodecyl amino propionic acid.

8. The inkjet ink of any one of claims 1-4, wherein: the pH control agent is at least one of glacial acetic acid, citric acid, lactic acid, hydrochloric acid, sodium hydroxide, triethanolamine, monoethanolamine, ammonium sulfate, ammonium chloride, diethanolamine, 2-aminoethanol, sodium tartrate and sodium citrate; the bactericide is benzisothiazolinone.

9. A preparation method of ink-jet ink for polyester-cotton blended fabric is characterized by comprising the following steps: the preparation method comprises the following preparation steps:

1) adding a dispersing agent into deionized water, adding a dye after uniformly stirring, adding a viscosity regulator, a surface tension control agent, a pH control agent and a bactericide after continuously and uniformly stirring, and uniformly stirring and mixing to obtain a slurry;

2) grinding the slurry obtained in the step 1) until the particle size D90 of the slurry is 280-320 nm, and filtering with a filter membrane of 0.65 μm to obtain the ink-jet ink.

10. The method of claim 9, wherein: the dye is a vat dye and a disperse dye, wherein the vat dye is at least one of C.I. vat yellow 1, C.I. vat yellow 3, C.I. vat orange 9, C.I. vat red 1, C.I. vat 29, C.I. vat red 42, C.I. vat violet 1, C.I. vat blue 20, C.I. vat blue 64, C.I. vat brown 25 and C.I. vat black 9; and the disperse dye is at least one of c.i. disperse blue 93, c.i. disperse blue 284, c.i. disperse blue 360, c.i. disperse blue 359, c.i. disperse red 153:1, c.i. disperse red 92, c.i. disperse orange 73, c.i. disperse orange 76, c.i. disperse brown 27, c.i. disperse yellow 74 and c.i. disperse yellow 114.

Technical Field

The invention relates to an ink-jet ink, in particular to an ink-jet ink for polyester-cotton blended fabric and a preparation method thereof, and belongs to the technical field of ink-jet printing.

Background

Digital ink-jet printing has been gradually accepted by the market due to its flexibility and rapidity without plate making. Meanwhile, various textile fabrics on the market also put higher requirements on the ink for digital ink-jet printing. Among them, the polyester-cotton blended fabric is popular in the market due to the combination of the wear resistance of the polyester fiber and the water absorption softness of the cotton fiber. However, since the polyester fiber and the cotton fiber require different dyes and/or processes for printing, the printing process of the polyester-cotton blend fiber is complicated and difficult. The current digital printing ink-jet ink sold in the market is generally of a single dye or pigment type, such as active ink, disperse ink, coating ink and the like, and when the ink is applied to polyester-cotton blended fabrics, the ink cannot meet the requirement of simultaneously coloring two fibers, so that the problems of white exposure, dark printing color, low fastness and the like are easy to occur.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the ink-jet ink for the polyester-cotton blended fabric, which can realize color development of the polyester-cotton fabric through the combined action of the vat dye and the disperse dye and effectively solve the problem that two fibers cannot be considered by adopting a single type of dye. In addition, the invention also provides a preparation method of the ink-jet ink.

In order to achieve the purpose, the invention adopts the following technical scheme:

the ink-jet ink for the polyester-cotton blended fabric is prepared from the following components in percentage by weight: dye: 2.0-30.0%, dispersant: 1.0-15.0%, viscosity modifier: 10.0 to 35.0%, surface tension controlling agent: 0.2-2.0%, pH controlling agent: 0.1-2.0%, bactericide: 0.1-1.0%, deionized water: the balance being.

Wherein: the dye is a vat dye and a disperse dye, and specifically, the vat dye is at least one of C.I. vat yellow 1, C.I. vat yellow 3, C.I. vat orange 9, C.I. vat red 1, C.I. vat 29, C.I. vat red 42, C.I. vat violet 1, C.I. vat blue 20, C.I. vat blue 64, C.I. vat brown 25 and C.I. vat black 9; and the disperse dye is at least one of c.i. disperse blue 93, c.i. disperse blue 284, c.i. disperse blue 360, c.i. disperse blue 359, c.i. disperse red 153:1, c.i. disperse red 92, c.i. disperse orange 73, c.i. disperse orange 76, c.i. disperse brown 27, c.i. disperse yellow 74 and c.i. disperse yellow 114.

The dispersing agent is at least one of acrylic acid-acrylate copolymer, acrylic acid-styrene copolymer, sodium lignosulfonate, 1-naphthalene sulfonic acid sodium salt, 2-naphthalene sulfonic acid sodium salt, sodium sulfonate, magnesium sulfonate, calcium sulfonate, alkyl polyoxyethylene ether phosphate and anionic polyacrylamide.

The viscosity regulator is at least one of glycerol, ethylene glycol, diethylene glycol, isopropanol, isobutanol, 1, 2-hexanediol, 1, 2-propylene glycol, ethylene glycol butyl ether, ethylene glycol tertiary butyl ether, diethylene glycol methyl ether, diethylene glycol diethyl ether, propylene glycol methyl ether, dipropylene glycol methyl ether, polyvinylpyrrolidone, betaine, polyethylene glycol 400, polyethylene glycol 1000, polyethylene glycol 8000 and 1, 5-pentanediol.

The surface tension control agent is at least one of nonionic surfactant, organosilicon surfactant, carboxylic acid betaine, sulfobetaine and dodecyl amino propionic acid; specifically, in the present invention, the nonionic surfactant may be selected from, for example, Surfynol 465, Surfynol 604, Surfynol 485, Surfynol104, Dynol 607 of american gas chemical company, and TEGO air rex 920, TEGO 510 of dikao corporation, and the silicone-based surfactant may be selected from, for example, TEGO WET 260, TEGO WET 270, TEGO WET 280, JFC-M of dikao corporation.

The pH control agent is at least one of glacial acetic acid, citric acid, lactic acid, hydrochloric acid, sodium hydroxide, triethanolamine, monoethanolamine, ammonium sulfate, ammonium chloride, diethanolamine, 2-aminoethanol, sodium tartrate and sodium citrate.

The bactericide is benzisothiazolinone.

The invention also provides a preparation method of the ink-jet ink, which comprises the following preparation steps:

1) adding the dispersant in the weight percentage into deionized water, fully mixing and stirring uniformly, adding a dye, continuously stirring uniformly, adding the viscosity regulator, the surface tension control agent, the pH control agent and the bactericide in the weight percentage, and stirring and mixing uniformly to obtain slurry;

2) grinding the slurry obtained in the step 1) by using a dispersion grinder until the particle size D90 of the slurry is 280-320 nm, and filtering by using a filter membrane of 0.65 mu m to obtain the ink-jet ink for the polyester-cotton mixed fabric.

The method has the beneficial effects that the vat dye and the disperse dye are simultaneously and stably dispersed in the same ink by the nano-dispersion technology, when the method is applied to printing the polyester-cotton fabric, the vat dye in the ink can dye cotton fibers in the polyester-cotton blended fabric, and the disperse dye in the ink can dye the polyester fibers in the polyester-cotton blended fabric, so that the vat dye and the disperse dye act together to realize the color development of the polyester-cotton fabric, the color problem caused by the fact that certain fiber cannot be dyed when the polyester-cotton blended fabric is printed by using ink with single property component is solved, the defects of poor color brightness, poor washing fastness, poor dry and wet rubbing fastness, white exposed pattern and the like of the ink-jet ink for the existing polyester-cotton blended fabric are effectively solved, and the full dyeing of the polyester-cotton blended fabric is realized. Finally, the effects of bright color, high saturation and excellent fastness are achieved.

Detailed Description

The following further describes embodiments of the present invention with reference to specific examples. Unless otherwise specified, each raw material used in the present invention can be purchased experimentally.