CN102453353A - Compositions for reducing the phenomenon of pigment smudging - Google Patents

Abstract

The present invention relates to a composition for reducing pigment blooming, which comprises: 0.5 to 2 weight percent of a nonionic surfactant; 5 to 15 weight percent of an alcohol ether compound; an aqueous pigment dispersant; a polyol compound; an antibacterial agent; and deionized water. When the composition for reducing pigment blooming is used, the reaction rate and/or interfacial activity between the pigment and the powder can be increased, thereby increasing color clarity and layering, and preventing different colors of pigments from blooming and causing blurred graphics.

Description

Compositions for reducing the phenomenon of pigment smudging

technical field

The present invention relates to a composition, in particular to a composition for reducing pigment blooming.

Background technique

The theoretical basis of rapid prototyping technology (RP technology for short) is developed based on the principle of building pyramid layers. Its main feature is fast forming and the ability to convert any design scheme of complex shape into a specific three-dimensional model without tools, molds or fixtures, which greatly shortens the development cycle and reduces the development cost of new products, and can More ensure the first-time success rate of new product development, and also enable new products to be launched on schedule. It provides a more complete product design communication tool for technical personnel, as well as between technical personnel and enterprise decision makers, product users and other non-technical personnel, so as to significantly improve the competitiveness of products and the rapid response of enterprises to the market ability.

At present, RP technology is often used in color 3D printing. It uses precision inkjet printing technology combined with carrier precision positioning technology to produce color 3D solid models. The production method first lays a layer of powder on the carrier and uses precision spraying Ink printing technology accurately sprays high-viscosity adhesive liquid on part of the powder, makes the adhesive liquid and powder stick and solidifies, and finally sprays the colorant. Continuously repeat the above-mentioned process and build up layer by layer to complete the colorful three-dimensional solid model.

Generally, the traditional color materials are mostly water-based pigment-type glues, because they have the advantages of better light resistance and water resistance. However, due to the similar properties of pigment-based glues of different colors, coupled with the poor interfacial activity between the glue and the powder layer and the slow reaction rate between the glue and the printing powder, mutual blurring will occur at the interface of two different pigments. phenomenon, resulting in insufficient color clarity and layering, and even blurred graphics.

Therefore, how to improve the deficiencies of the above-mentioned known technologies, reduce the phenomenon of smudging between pigments, and improve the clarity and layering of colors is an urgent problem to be solved at present.

Contents of the invention

The main purpose of the present invention is to provide a composition for reducing the phenomenon of pigment blooming, which can be added to pigments of different colors to reduce the phenomenon of pigment blooming, and to avoid blurring of patterns caused by mutual blooming of pigments of different colors situation.

Another object of the present invention is to provide a composition for reducing the phenomenon of pigment blooming, so as to achieve the effect of increasing the reaction rate and/or interfacial activity between the pigment and the powder, thereby increasing the color clarity and layering.

In order to achieve the above object, a wider implementation aspect of the present invention is to provide a composition for reducing pigment blooming, which comprises: 0.5 to 2 weight percent of nonionic surfactants; 5 to 15 weight percent of alcohol an ether compound; at least one aqueous pigment dispersant; at least one polyol compound; at least one antimicrobial agent; and deionized water.

To achieve the above purpose. Another broad implementation aspect of the present invention is to provide a composition for reducing pigment blooming, which comprises: 0.5 to 2 weight percent of nonionic surfactants; 5 to 15 weight percent of alcohol ether compounds; 10 to 30 weight percent of water-based pigment dispersant; 10 to 30 weight percent of polyol compound; 0.1 to 1 weight percent of antibacterial agent; and 22 to 74.4 weight percent of deionized water.

Detailed ways

Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the description in the following paragraphs. It should be understood that the present invention can have various changes in different aspects, all of which do not depart from the scope of the present invention, and the descriptions and illustrations therein are used as illustrations in nature, not to limit the present invention .

The invention provides a composition for reducing pigment blooming, which comprises: 0.5 to 2 weight percent of nonionic surfactants, 5 to 15 weight percent of alcohol ether compounds, at least one water-based pigment dispersant, at least one polyol compound, at least one antibacterial agent, and deionized water.

440、

465以及

485等，其是市售自美国Air Products andChemicals，Inc.。非离子型界面活性剂可使减少颜料晕染现象的组合物有效的往铺粉层渗入，其重量比以减少颜料晕染现象的组合物为基准，当使用比例小于0.5重量百分比时，因浓度过低而无法有效达到提升其界面活性的效果，然而，当使用比例大于2重量百分比时，会因界面活性的过度提升导致减少颜料晕染现象的组合物渗入铺粉层的速度过快，亦无法达成本发明预期的效果。因此，其较佳的重量比例可为0.5至2重量百分比。In some embodiments, the nonionic surfactant of the composition for reducing pigment blooming may be an organic compound with acetylated acetylenic diol, including but not limited to

440、

465 and

485 et al., which is commercially available from Air Products and Chemicals, Inc., USA. The non-ionic surfactant can effectively infiltrate the composition for reducing pigment blooming into the powder layer, and its weight ratio is based on the composition for reducing pigment blooming. When the use ratio is less than 0.5% by weight, the concentration It is too low to effectively achieve the effect of improving its interface activity. However, when the use ratio is greater than 2% by weight, the excessive improvement of the interface activity will cause the speed of the composition that reduces the pigment blooming phenomenon to penetrate into the powder layer too fast, and also Can't reach the expected effect of the present invention. Therefore, its preferred weight ratio may be 0.5 to 2 weight percent.

In some other embodiments, the alcohol ether alkaloid compound of the composition for reducing pigment blooming can have one to four carbon atoms, and a straight chain structure is the best, including but not limited to ethylene glycol monomethyl ether, ethyl Glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, Triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol monopropyl ether, triethylene glycol monobutyl ether, etc., used to increase the composition and printing powder or powder group for reducing the phenomenon of pigment blooming The reaction rate, and then improve the inter-blush phenomenon with the pigment, and its preferred weight ratio is based on the composition that reduces the pigment smudge phenomenon, which can be 5 to 15% by weight.

According to the idea of the present invention, the water-based pigment dispersant of the composition that reduces the phenomenon of pigment blooming can use commercially available products including but not limited to commercially available pigment dispersants from U.S. Cabot Corp. and U.S. Clariant Corp., and its preferred The weight ratio can be 10 to 30 weight percent based on the composition for reducing smudged pigments, and is used to separate or disperse the pigments.

In some embodiments, the polyol compound of the composition for reducing pigment smudging can be composed of one to three types of alcohol compounds with at least two hydroxyl groups, including but not limited to 1,3-propanediol , 1,2-propanediol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 1,2-pentanediol, 1,3-pentanediol, 1,4 -pentanediol, 1,5-pentanediol, trimethylolpropane, trimethylolethane, glycerol, pentaerythritol and sorbitol, etc., and its preferred weight ratio to reduce the composition of the pigment blooming phenomenon is Based on 10 to 30 weight percent, it is used as a humectant and/or stabilizer for reducing pigment smudge. In some embodiments, the composition for reducing the phenomenon of pigment blooming can be based on the composition for reducing the phenomenon of pigment blooming, 2 to 10 weight percent of pyrrolidone compounds can be added as a stabilizer for the pigment.

According to conception of the present invention, the antibacterial agent of the composition that reduces pigment smudge phenomenon can use commercially available product including but not limited to commercially available from U.S. Arch Chemicals, Inc. GXL and CANGUARD ^™ ULTRA BIT 20DPG commercially available from U.S. DowChemical, Inc., etc., and its preferred weight ratio is based on the composition of reducing pigment blooming phenomenon, which can be 0.1 to 1 weight percent, in order to achieve antibacterial and Bactericidal effect.

In other embodiments, the composition for reducing pigment blooming of the present invention may include a powder group, which may include 80 to 97 weight percent of gypsum powder with a diameter of 20 to 120 μm and 3 to 20 weight percent of a binder. become. The adhesive can be liquid or viscous and contains water-soluble polymer adhesives accounting for 2 to 10 weight percent of the powder group and starch-based adhesives accounting for 1 to 10 weight percent of the powder group, in order to reduce the pigment of the present invention Compositions with blooming phenomenon have hardening and adhesive effects. The water-soluble polymer adhesive can be, for example, composed of at least one of polyvinyl alcohol, polyvinylpyrrolidone, gum arabic, alginate, dextrin, and gelatin, while the starch-based adhesive can contain 5 to 20 weight percent Amylose and 80 to 95 weight percent amylopectin.

The composition for reducing pigment blooming of the present invention, in some embodiments, can use water or deionized water as a solvent or diluent, and its preferred weight ratio is based on the composition for reducing pigment blooming. It is 22 to 74.4% by weight, and the sum of the weight ratios with the above-mentioned compounds and chemical agents should be 100% by weight.

Red P2GL、

F6B以及Yellow HR是市售自美国Clariant Corp.的水性颜料分散剂，而

485以及GXL则分别是市售自美国Air Products and Chemicals，Inc.的非离子型界面活性剂以及市售自美国Arch Chemicals，Inc.的抗菌剂。此外，于表中每一成份是以减少颜料晕染现象的组合物为基准而以重量百分比计的。Please refer to the following Table 1 and Table 2, which are several examples of the composition of the present invention to reduce the phenomenon of pigment blooming, wherein, COJ 250C, COJ 260M and COJ 270Y are commercially available from Cabot Corp. of the United States and Blue B2G,

Red P2GL,

F6B and Yellow HR is a water-based pigment dispersant commercially available from U.S. Clariant Corp., and

485 and GXL is a nonionic surfactant commercially available from Air Products and Chemicals, Inc., USA, and an antibacterial agent commercially available from Arch Chemicals, Inc., USA. In addition, each component in the table is based on the composition for reducing the phenomenon of pigment blooming and is expressed in weight percent.

Table 1. Embodiments one to three of the composition of the present invention that reduces pigment blooming

Table 2. Embodiments four to seven of the compositions of the present invention that reduce pigment blooming

Please refer to Table 3 below, which is three examples of the powder group of the present invention, and each component in the table is based on the powder group and is calculated by weight percentage.

Table 3. Embodiments one to three of the powder group of the present invention

From Table 1, Table 2 and Table 3, it can be found that the embodiment of the composition of the present invention that reduces the phenomenon of pigment blooming can indeed include 0.5 to 2 weight percent of nonionic surfactants, 5 to 15 weight percent of alcohol ethers compounds, aqueous pigment dispersants, polyols, antimicrobials, and deionized water. And may include a powder group, the powder group includes 80 to 97 weight percent of gypsum powder with a diameter of 20 to 120 μm and 3 to 20 weight percent of adhesive. Therefore, it can be seen that the present invention can indeed be implemented according to it, and can reach the expected effect of the present invention.

In summary, the composition for reducing pigment blooming of the present invention mainly achieves It is an invention with industrial value to reduce the smudge phenomenon of pigments and increase the clarity and layering of colors.

Even though the present invention has been described in detail by the above-mentioned embodiments, it can be modified in various ways by those skilled in the art, all of which are within the scope of the attached patent application.

Claims (16)

1. A composition for reducing pigment blooming, comprising: 0.5 to 2 weight percent nonionic surfactants; 5 to 15 weight percent alcohol ether compounds; at least one aqueous pigment dispersant; at least one polyol compound; at least one antimicrobial agent; and Deionized water. 2. The composition reducing pigment blooming phenomenon as claimed in claim 1, characterized in that the nonionic surfactant comprises at least one of the organic compounds with acetylene glycol ethoxy (Ethoxylated acetylenic diol) constitute. 3. The composition for reducing pigment blooming as claimed in claim 1, wherein the alcohol ether compound comprises at least one alcohol ether compound with one to four carbon atoms. 4. the composition that reduces pigment smudge phenomenon as claimed in claim 1 is characterized in that this alcohol ether compound is ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol Monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, Triethylene glycol monopropyl ether or triethylene glycol monobutyl ether. 5 . The composition for reducing pigment smearing as claimed in claim 1 , wherein the water-based pigment dispersant accounts for 10 to 30% by weight based on the composition for reducing pigment smearing. 5 . 6 . The composition for reducing pigment smudging as claimed in claim 1 , wherein the polyol compound accounts for 10 to 30 weight percent based on the composition for reducing pigment smudging. 7 . 7. The composition for reducing pigment blooming as claimed in claim 1, wherein the polyol compound comprises one to three kinds of alcohol compounds with at least two hydroxyl groups. 8 . The composition for reducing pigment smudging as claimed in claim 1 , wherein the polyol compound is used as a humectant and/or stabilizer of the composition for reducing pigment smudging. 9. The composition for reducing pigment blooming as claimed in claim 1, further comprising 2 to 10 weight percent of a pyrrolidone compound used as a stabilizer for the pigment. 10. The composition for reducing the phenomenon of pigment blooming as claimed in claim 1, wherein the antibacterial agent accounts for 0.1 to 1 weight percent based on the composition for reducing the phenomenon of pigment blooming. 11. The composition for reducing pigment blooming as claimed in claim 1, further comprising a powder group comprising 80 to 97 weight percent of gypsum powder with a diameter of 20 to 120 μm and 3 to 20 weight percent of glue. 12. The composition for reducing pigment blooming as claimed in claim 11, wherein the binder comprises 2 to 10 weight percent of the powder group water-soluble polymer binder and 1 to 10 weight percent of the powder group percent starch-based binder. 13. The composition reducing pigment blooming as claimed in claim 12, characterized in that the water-soluble macromolecule binder comprises polyvinyl alcohol, polyvinylpyrrolidone, gum arabic, seaweed gum, dextrin, gelatin Consists of at least one. 14. The composition for reducing pigment blooming as claimed in claim 12, wherein the starch-based binder comprises 5 to 20 weight percent of amylose and 80 to 95 weight percent of amylopectin. 15. The composition for reducing the phenomenon of pigment smudging as claimed in claim 1, wherein the deionized water accounts for 22 to 74.4 weight percent based on the composition for reducing the phenomenon of pigment smudging. 16. A composition for reducing pigment blooming, comprising: 0.5 to 2 weight percent nonionic surfactants; 5 to 15 weight percent alcohol ether compounds; 10 to 30% by weight of the water-based pigment dispersant; 10 to 30 weight percent polyols; 0.1 to 1 weight percent antimicrobial agent; and 22 to 74.4 weight percent deionized water.