CN114213926A

CN114213926A - Multicolor paint and preparation method thereof

Info

Publication number: CN114213926A
Application number: CN202111561227.XA
Authority: CN
Inventors: 王翱雷; 胡恒志; 冯铭鸿; 叶贺昌
Original assignee: Guangdong Carpoly Science & Technology Material Co ltd
Current assignee: Guangdong Carpoly Science & Technology Material Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-03-22
Anticipated expiration: 2041-12-16
Also published as: CN114213926B

Abstract

The invention discloses a multicolor paint and a preparation method thereof, wherein the multicolor paint comprises a base paint, a first protective glue solution and a continuous phase, wherein the base paint comprises (2-6) to (1-3) to (1-7) by weight. Wherein, the base paint contains 5 to 10 weight percent of pure acrylic emulsion, 0.2 to 1 weight percent of hydroxyethyl cellulose, 0.2 to 1 weight percent of hydrophobically modified hydroxyethyl cellulose and 3 to 8 weight percent of second protective glue solution, and the continuous phase contains 30 to 40 weight percent of silicone acrylic emulsion. The colorful coating provided by the invention has a smooth surface, presents a pearlescent colorful visual effect, is suitable for various construction modes such as brushing, roller coating and spraying, has wide applicability, and is suitable for various construction situations such as small-sized home decoration.

Description

Multicolor paint and preparation method thereof

Technical Field

The invention relates to the field of coatings, in particular to a multicolor coating and a preparation method thereof.

Background

The multicolor paint is developed rapidly in the field of exterior walls in recent years, is popular in real estate industry due to rich expression effect and wall decoration capability, is essentially a mixture of liquid waterborne resin and color-changing pearlescent powder, is coated by reaction to form uniform pearlescent droplets, and is uniformly suspended in a continuous phase mixed by waterborne emulsion.

The art paint metallic paint series represents the velvet products, the construction process is complex, the overall effect is too strong and glaring, the requirements of the market on new Chinese and matte products cannot be met, and meanwhile, the complex process also restricts the training of personnel and the popularization of the effect.

Therefore, a multicolor paint with better color effect and more convenient construction needs to be provided.

Disclosure of Invention

The invention mainly aims to provide a colorful coating and a preparation method thereof, wherein the colorful coating has a smooth surface and achieves a new appearance of flowing and colorful light by matching with a pearlescent effect; the paint is convenient to use and is suitable for various construction processes such as brushing, roller coating, spraying and the like; the applicability is wide, and the method is suitable for various construction situations such as small-sized home decoration, and the like, so that the market demand is met.

The first aspect of the invention provides a multicolor paint, which comprises (2-6) parts by weight of base paint, (1-3) parts by weight of base paint, (1-7) parts by weight of first protective glue solution and continuous phase, wherein,

the first protective colloid solution is prepared from the following raw materials: protective glue, a first bactericide and water; wherein the protective glue is magnesium lithium silicate, and the weight percentage of the protective glue in the protective glue solution is 6-8%;

the base paint is prepared from raw materials comprising the following components: the coating comprises a pure acrylic emulsion, a first defoaming agent, a dispersing agent, a first film forming auxiliary agent, hydroxyethyl cellulose, hydrophobically modified hydroxyethyl cellulose, a first pH regulator, pearl powder, a first thickening agent, a second bactericide, a second protective glue solution and water; in the base paint, the pure acrylic emulsion accounts for 5-10 wt%, the hydroxyethyl cellulose accounts for 0.2-1 wt%, and the hydrophobically modified hydroxyethyl cellulose accounts for 0.2-1 wt%; the types and the proportions of the components in the second protective glue solution are the same as those of the components in the first protective glue solution, and the weight percentage of the components in the base paint is 3-8%;

the continuous phase is prepared from a feedstock comprising: the silicone-acrylate emulsion, a second defoaming agent, a second film forming aid, a second pH regulator, a second thickening agent, a third bactericide and water; wherein the weight percentage of the silicone-acrylic emulsion in the continuous phase is 30-40%.

In some embodiments of the present invention, the multicolor paint,

the pure acrylic emulsion is a reactive anionic pure acrylic emulsion; and/or the presence of a catalyst in the reaction mixture,

the solid content of the pure acrylic emulsion is 48% +/-1%; and/or the presence of a catalyst in the reaction mixture,

the solid content of the silicone-acrylic emulsion is 40% +/-1%; and/or the presence of a catalyst in the reaction mixture,

the first thickener is an alkali swelling thickener; and/or the presence of a catalyst in the reaction mixture,

the second thickener is an alkali swelling thickener.

In some embodiments of the present invention, the multicolor paint,

the first bactericide is methyl chloroisothiazolinone and/or methyl isothiazolinone; and/or the presence of a catalyst in the reaction mixture,

the pure acrylic emulsion is an emulsion of an acrylate polymer; and/or the presence of a catalyst in the reaction mixture,

the hydroxyethyl cellulose is cellulose ether; and/or the presence of a catalyst in the reaction mixture,

the hydrophobically modified hydroxyethyl cellulose is a cellulose ether derivative; and/or the presence of a catalyst in the reaction mixture,

the silicone acrylic emulsion is an emulsion of an acrylate copolymer; and/or the presence of a catalyst in the reaction mixture,

the first thickening agent is hydrophobically modified polyacrylate; and/or the presence of a catalyst in the reaction mixture,

the first defoaming agent is mineral oil hydrophobic fumed silica; and/or the presence of a catalyst in the reaction mixture,

the dispersant is polyacrylate; and/or the presence of a catalyst in the reaction mixture,

the first film forming auxiliary agent is alcohol ester twelve; and/or the presence of a catalyst in the reaction mixture,

the pearl powder is color-changing pearl powder and/or temperature-changing pearl powder; and/or the presence of a catalyst in the reaction mixture,

the first pH regulator is 2-amino-2-methyl-1-propanol; and/or the presence of a catalyst in the reaction mixture,

the second defoaming agent is mineral oil hydrophobic fumed silica; and/or the presence of a catalyst in the reaction mixture,

the second film forming auxiliary agent is alcohol ester twelve; and/or the presence of a catalyst in the reaction mixture,

the second pH regulator is 2-amino-2-methyl-1-propanol; and/or the presence of a catalyst in the reaction mixture,

the second thickening agent is hydrophobically modified polyacrylate; and/or the presence of a catalyst in the reaction mixture,

the second bactericide is: methylchloroisothiazolinone and/or methylisothiazolinone and/or benzisothiazolin-3-one; and/or the presence of a catalyst in the reaction mixture,

the third bactericide is: methylchloroisothiazolinone and/or methylisothiazolinone and/or benzisothiazolin-3-one.

In some embodiments of the present invention, the multicolor paint,

the protective glue is S482 type; and/or

The first bactericide is 1.5M; and/or

The type of the pure acrylic emulsion is 8209; and/or the presence of a catalyst in the reaction mixture,

the hydroxyethyl cellulose is of the HBR250 type; and/or the presence of a catalyst in the reaction mixture,

the hydrophobically modified hydroxyethyl cellulose type HE 10K; and/or the presence of a catalyst in the reaction mixture,

the silicone-acrylic emulsion is 3799A; and/or the presence of a catalyst in the reaction mixture,

the first thickener is TT-935 type; and/or the presence of a catalyst in the reaction mixture,

the first defoamer is an NXZ defoamer; and/or the presence of a catalyst in the reaction mixture,

the dispersant is P30 type; and/or the presence of a catalyst in the reaction mixture,

the first film forming auxiliary agent is Texanol type; and/or the presence of a catalyst in the reaction mixture,

the pearl powder is color-changing pearl powder and/or temperature-changing pearl powder, wherein the color-changing pearl powder is QC7519L type, and the temperature-changing pearl powder is KJ-11-31 type; and/or the presence of a catalyst in the reaction mixture,

the first pH regulator is AMP-95 type; and/or the presence of a catalyst in the reaction mixture,

the second defoaming agent is NXZ type; and/or the presence of a catalyst in the reaction mixture,

the second film forming auxiliary agent is Texanol type; and/or the presence of a catalyst in the reaction mixture,

the second pH regulator is AMP-95 type; and/or the presence of a catalyst in the reaction mixture,

the second thickener is TT-935 type; and/or the presence of a catalyst in the reaction mixture,

the second bactericide is 1.5M type and/or KTL type; and/or the presence of a catalyst in the reaction mixture,

the third bactericide is 1.5M type and/or KTL type.

In some embodiments of the present invention, in the multicolor paint, the base paint further includes one or both of titanium dioxide and a mildew inhibitor; the continuous phase also comprises one or two of an antifreezing agent and a mildew preventive; wherein the content of the first and second substances,

the titanium dioxide is titanium dioxide; and/or the presence of a catalyst in the reaction mixture,

the antifreezing agent is ethylene glycol; and/or the presence of a catalyst in the reaction mixture,

the mildew preventive is 2-n-octyl-4-isothiazoline-3-ketone.

In some embodiments of the present invention, the multicolor paint,

the titanium dioxide is R996 type; and/or the presence of a catalyst in the reaction mixture,

the mildew preventive is WME type.

In some embodiments of the present invention, the multicolor paint,

the first protective colloid solution is prepared from the following raw materials: 6-8 parts of protective adhesive, 0.2-0.3 part of first bactericide and 91.8-93.8 parts of water;

the base paint is prepared from raw materials comprising the following components: 66-86 parts of water, 5-10 parts of pure acrylic emulsion, 0.2-0.5 part of first defoaming agent, 0.1-0.3 part of dispersant, 0.2-0.5 part of first film forming auxiliary agent, 0.2-1 part of hydroxyethyl cellulose, 0.2-1 part of hydrophobically modified hydroxyethyl cellulose, 0.2-0.5 part of first pH regulator, 1-3 parts of color-changing pearl powder, 3-5 parts of temperature-changing pearl powder, 0-2 parts of titanium dioxide, 0-0.4 part of mildew preventive, 0.2-0.8 part of second bactericide, 3-8 parts of second protective adhesive solution and 0.3-1 part of first thickening agent;

the continuous phase is prepared from a feedstock comprising: 52.3-66.6 parts of water, 30-40 parts of silicone-acrylate emulsion, 0.2-0.5 part of second defoaming agent, 1.1-1.5 parts of first film forming aid, 0-3 parts of antifreezing agent, 0.2-0.5 part of second pH regulator, 0.2-0.8 part of third bactericide, 0-0.4 part of mildew preventive and 0.3-1 part of second thickening agent.

The second aspect of the invention provides a preparation method of a multicolor paint, which comprises the following preparation steps: the raw material formula of the multicolor paint as claimed in any one of claims 1 to 7, wherein the base paint and the first protective glue solution are mixed and then mixed with the continuous phase to prepare the multicolor paint; wherein the content of the first and second substances,

the protective glue solution is prepared by the following steps: mixing the protective glue and water, dispersing, adding the first bactericide, and continuously dispersing until the first bactericide is completely dissolved to prepare a first protective glue solution;

the base paint is prepared by the following steps: mixing the first defoaming agent, the dispersing agent, the first film forming auxiliary agent, the hydroxyethyl cellulose, the hydrophobically modified hydroxyethyl cellulose, the first pH regulator and water, and dispersing to prepare a first mixture;

adding titanium dioxide and the pearl powder into the first mixture, and dispersing to obtain a second mixture;

adding the pure acrylic emulsion into the second mixture for dispersion, then adding the first thickening agent, adding the mildew preventive, adding the second bactericide, adding the second protective glue solution, and mixing uniformly to obtain the base paint;

the continuous phase is prepared by the following steps: and mixing the second defoaming agent, the second film forming aid, the antifreezing agent, the second pH regulator and water, dispersing, adding the silicone-acrylic emulsion, adding the second thickening agent, adding the third bactericide and adding the mildewproof agent, and mixing to obtain the base paint.

In some embodiments of the present invention, the method for preparing the multicolor paint comprises the following steps: and adding the base paint into the first protective adhesive solution, precutting, cutting and granulating, then adding the continuous phase, and uniformly mixing to obtain the multicolor paint.

In some embodiments of the present invention, in the method for preparing the multicolor paint,

the protective glue solution is prepared by the following steps: mixing the protective glue and water, dispersing for 60-90 min under the stirring condition of 1300-1700 r/min, adding the first bactericide, and continuously stirring until the first bactericide is completely dissolved to prepare a first protective glue solution;

the base paint is prepared by the following steps: mixing the first defoaming agent, the dispersing agent, the first film forming auxiliary agent, the hydroxyethyl cellulose, the hydrophobically modified hydroxyethyl cellulose, the first pH regulator and water under the stirring condition of 200-400 r/min, and dispersing for 3-5 min under the stirring condition of 500-900 r/min to prepare a first mixture;

adding the titanium dioxide and the pearl powder into the first mixture, and dispersing for 10-15 min under the stirring condition of 800-1200 r/min to prepare a second mixture;

adding the pure acrylic emulsion into the second mixture, dispersing for 5-8 min under the stirring condition of 500-900 r/min, then adding the first thickening agent, adding the preservative, adding the second bactericide, adding the second protective glue solution, and continuously mixing for 8-10 min to obtain the base paint;

the continuous phase is prepared by the following steps: and mixing the second defoaming agent, the second film forming auxiliary agent, the antifreezing agent, the second pH regulator and water for 3-5 min under the stirring condition of 200-400 r/min, dispersing for 5-8 min under the stirring condition of 500-900 r/min, adding the silicone-acrylic emulsion, adding the second thickening agent, adding the third bactericide, adding the mildew preventive and mixing for 5-8 min to prepare the continuous phase.

The base paint, the first protective glue solution and the continuous phase in a proper weight ratio are used as a formula of the multicolor paint, the proper emulsion is used as a film forming substance in the base paint and the continuous phase, and the proper cellulose is matched to prepare the multicolor paint. The paint has the advantages of stable system, storage resistance, high color point toughness and the like, is high in construction tolerance, and is suitable for various construction modes such as brushing, roller coating, spraying and the like.

The traditional multicolor paint has poor system stability and is not storage-resistant. The invention adopts proper emulsion as film forming matter, which can improve the stability and storability of the coating. In the invention, the pure acrylic emulsion in the base rubber is associated with the protective rubber solution and the cellulose for thickening, the increase range of the associated viscosity of the pure acrylic emulsion is controllable, and the color dots can be prevented from being infinitely thickened in the storage process; the silicone-acrylate emulsion in the continuous phase has good compatibility with the protective glue solution, can stabilize the system and avoid thickening after too long storage time.

In the traditional multicolor paint, color points are easy to harden, when preparing the pearlescent paint, the pearlescence is not obvious easily caused by the fact that the paint surface is not smooth enough, and the surface of the paint is easy to break caused by the hardening of the color points. According to the invention, hydroxyethyl cellulose and hydrophobically modified hydroxyethyl cellulose with different molecular chain lengths and modification treatment technologies are matched for use, so that the prepared base paint has specific non-Newtonian fluid characteristics, and the toughness of the colorful particles is improved. Under the condition that the content of colorful particles is not less than 30%, the surface of the colorful coating provided by the invention still keeps smooth, and the colorful coating can present more colorful streamer visual effect by matching with pearly luster.

Detailed Description

The present invention will be further illustrated by the following embodiments and examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications can be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the claims appended to the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Term(s) for

Unless otherwise stated or contradicted, terms or phrases used herein have the following meanings:

the term "and/or", "and/or" as used herein is intended to be inclusive of any one of two or more of the associated listed items and also to include any and all combinations of the associated listed items, including any two or any more of the associated listed items, or any and all combinations of the associated listed items. It should be noted that when at least three items are connected by at least two conjunctive combinations selected from "and/or", "or/and", "and/or", it should be understood that, in the present application, the technical solutions definitely include the technical solutions all connected by "logic and" and also the technical solutions all connected by "logic or". For example, "A and/or B" includes A, B and A + B. For example, the embodiments of "a, and/or, B, and/or, C, and/or, D" include any of A, B, C, D (i.e., all embodiments using "logical or" connection "), any and all combinations of A, B, C, D (i.e., any two or any three of A, B, C, D), and four combinations of A, B, C, D (i.e., all embodiments using" logical and "connection).

The terms "preferably", "better", and the like are used herein only to describe better embodiments or examples, and it should be understood that the scope of the present invention is not limited by these terms.

In the present invention, "further", "still further", "specifically" and the like are used for descriptive purposes to indicate differences in content, but should not be construed as limiting the scope of the present invention.

In the present invention, the terms "first", "second", etc. in the terms of "first aspect", "second aspect", etc. are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or quantity, nor are they to be construed as implicitly indicating the importance or quantity of the technical feature indicated. Also, "first," "second," etc. are used for non-exhaustive enumeration of description purposes only and should not be construed as constituting a closed limitation to the number.

In the present invention, the technical features described in the open type include a closed technical solution composed of the listed features, and also include an open technical solution including the listed features. It is to be understood that when a material is described by a defined formula for its chemical composition, it may have impurities present in usual amounts, including but not limited to impurities inevitably introduced as a result of the manufacturing process.

In the present invention, where a range of values (i.e., a numerical range) is recited, unless otherwise specified, alternative distributions of values within the range are considered to be continuous, and include both the numerical endpoints of the range (i.e., the minimum and maximum values), and each numerical value between the numerical endpoints. Unless otherwise specified, when a numerical range refers to integers only within the numerical range, both endpoints of the numerical range are inclusive of the integers and each integer between the endpoints is inclusive of the integer. Further, when multiple range-describing features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, the ranges disclosed herein are to be understood to include any and all subranges subsumed therein.

In the present invention, the particle diameter refers to an average particle diameter unless otherwise specified.

In the present invention, the molecular weight is an average molecular weight unless otherwise specified, and further an index average molecular weight unless otherwise specified.

In the present invention, the solid content refers to the weight-solid content unless otherwise specified.

In the present invention, abbreviations are referred to: methylchloroisothiazolinone (CIT), Methylisothiazolinone (MIT), 2-amino-2-methyl-1-propanol (AMP), benzisothiazolin-3-one (BIT), 2-n-octyl-4-isothiazolin-3-One (OIT).

The first aspect of the invention provides a multicolor paint, based on a base paint, a first protective glue solution and a continuous phase in proper proportion, by matching hydroxyethyl cellulose and modified hydroxyethyl cellulose, and adopting a pure acrylic emulsion and a silicone acrylic emulsion which have synergistic action with protective glue, the effects of smoothness and high toughness of multicolor particles of the multicolor paint can be achieved. The coating has wide applicability, is suitable for various construction modes including brushing, roller coating and spraying, and is not easy to crack after being dried.

In a first aspect of the present invention, a multicolor paint is provided, which comprises (2-6) to (1-3) parts by weight of a base paint, a protective glue solution (denoted as a first protective glue solution), and a continuous phase,

the first protective colloid solution is prepared from the following raw materials: protective glue, bactericide (marked as first bactericide) and water; wherein the protective glue is magnesium lithium silicate, and the weight percentage of the protective glue in the protective glue solution is 6-8%;

the base paint is prepared from raw materials comprising the following components: the coating comprises a pure acrylic emulsion, a defoaming agent (recorded as a first defoaming agent), a dispersing agent, a film forming auxiliary agent (recorded as a first film forming auxiliary agent), hydroxyethyl cellulose, hydrophobically modified hydroxyethyl cellulose, a pH regulator (recorded as a first pH regulator), pearl powder, a thickening agent (recorded as a first thickening agent), a bactericide (recorded as a second bactericide), a protective adhesive solution (recorded as a second protective adhesive solution) and water; in the base paint, the pure acrylic emulsion accounts for 5-10 wt%, the hydroxyethyl cellulose accounts for 0.2-1 wt%, and the hydrophobically modified hydroxyethyl cellulose accounts for 0.2-1 wt%; the composition of the second protective glue solution is the same as the type and proportion of the components of the first protective glue solution, and the weight percentage of the second protective glue solution in the base paint is 3-8%;

the continuous phase is prepared from a feedstock comprising: the coating comprises a silicone-acrylate emulsion, a defoaming agent (recorded as a second defoaming agent), a film-forming auxiliary agent (recorded as a second film-forming auxiliary agent), a pH regulator (recorded as a second pH regulator), a thickening agent (recorded as a second thickening agent), a bactericide (recorded as a third bactericide) and water; wherein the weight percentage of the silicone-acrylic emulsion in the continuous phase is 30-40%.

The base paint, the first protective glue solution and the continuous phase can be (2-6): (1-3): 1-7) in parts by weight, can maintain uniform stability of particle granulation, and are further preferably (2-5): 1-3): 2-7, and the uniformity and quantity of the particles and the water resistance, stain resistance and flatness of a dry film are better.

In some embodiments, the base paint, first protective gum solution, and continuous phase are in a weight ratio of 3:2:5, 4.5:3:2.5, 2:1: 7.

In some embodiments, the weight ratio of the base paint, the first protective colloid solution and the continuous phase is (2-4): 1-3): 2.5-7, and further (2-4): 1-3): 5-7.

In some embodiments, the base paint, the first protective gum solution, and the continuous phase are 20 to 40 parts, 10 to 30 parts, and 25 to 70 parts, respectively, by weight based on 100 parts by weight. Further, the parts of the base paint are, for example, 20 to 30 parts, 20 to 25 parts, 20 to 23 parts, 25 to 30 parts, 25 to 28 parts, and the like; the parts of the first protective colloid solution are, for example, 10-20 parts, 10-18 parts, 10-15 parts, 10-13 parts, 15-20 parts, 15-18 parts, and the like; the continuous phase is exemplified by 50 to 70 parts, 50 to 65 parts, 50 to 60 parts, 50 to 55 parts, 60 to 70 parts, 60 to 65 parts, 65 to 70 parts, etc.

In the invention, the protective colloid solution can be synergistically thickened with cellulose, emulsion (silicone-acrylic emulsion, pure acrylic emulsion) and the like, the particle shape and uniformity are maintained, and the granulation performance is improved. The protective gum solution is used on the one hand for the direct preparation of the multicolor paint (first protective gum solution) and on the other hand for the preparation of the base paint in the multicolor paint (second protective gum solution).

In some embodiments, the first protective gum solution is prepared from raw materials comprising: protective glue, a first bactericide and water. In some embodiments, the protective glue is of the magnesium lithium silicate type, and further may be a lithium magnesium sodium silicate. In some embodiments, the protective glue is of type S482, and further may be of type dick chemical S482.

In some embodiments, the weight ratio of the protective gel in the first protective gel solution is 6-8% based on 100% of the total amount of the first protective gel solution. Examples thereof include 6%, 6.5%, 7%, 7.5%, 8% and the like.

In the invention, the bactericides (the first bactericide, the second bactericide and the third bactericide) can prevent the raw materials of the multicolor paint and the multicolor paint from deteriorating during the storage period. The first bactericide, the second bactericide and the third bactericide are independent of each other, can be the same or different, and can be any one, any two or three of benzisothiazolin-3-one (BIT), methylchloroisothiazolinone (CIT) and Methylisothiazolinone (MIT) independently.

In some embodiments, the first biocide is CIT or MIT. In some embodiments, the first biocide is a mixture of CIT and MIT. In some embodiments, the first biocide is type 1.5M, and further may be type 1.5M wink chemistry.

In some embodiments, the weight of the first bactericide in the protective colloid solution is 0.2-0.3 parts based on 100 parts by weight of the total amount of the first protective colloid solution. For example, 0.2, 0.22, 0.25, 0.26, 0.28, 0.3, etc. are used.

In some embodiments, the first protective gum solution is prepared from a starting material comprising: 6-8 parts of protective adhesive, 0.2-0.3 part of first bactericide and 91.8-93.8 parts of water. Further, the protective adhesive is exemplified by 6, 6.5, 7, 7.5, 8, etc., the first bactericide is exemplified by 0.2, 0.25, 0.3, etc., and the water is independently exemplified by 91.8, 91.9, 92, 92.1, 92.2, 92.3, 92.4, 92.5, 92.6, 92.7, 92.8, 92.9, 93, 93.1, 93.2, 93.3, 93.4, 93.5, 93.6, 93.7, 93.8, etc., in parts by weight.

In the present invention, the base paint can be used to prepare color dots in a multicolor paint. In some embodiments, the base paint is prepared from raw materials comprising: the coating comprises a pure acrylic emulsion, a first defoaming agent, a dispersing agent, a first film forming auxiliary agent, hydroxyethyl cellulose, hydrophobically modified hydroxyethyl cellulose, a first pH regulator, pearl powder, a first thickening agent, a second bactericide, a second protective glue solution and water.

In the invention, the acrylic emulsion can be used in base paint to associate with cellulose and protective glue solution for thickening and can be used as a coating and film-forming substance in the product construction and drying process. In some embodiments, the acrylic emulsion is an emulsion of an acrylate polymer. In some embodiments, the solids content of the acrylic emulsion is 48% ± 1%, such as 47.1%, 47.2%, 47.5%, 47.6%, 47.8%, 47.9%, 48%, 48.1%, 48.2%, 48.5%, 48.7%, 49%.

In some embodiments, the acrylic emulsion is an anionic acrylic emulsion, and further can be a reactive anionic acrylic emulsion, and has fine particle size, high gloss, excellent weather resistance and excellent anti-tack property. In some embodiments, the acrylic emulsion is 8209 type, has low odor and good storage stability, and further can be Wanhua chemical 8029 type.

In some embodiments, the acrylic emulsion is present in the multicolor coating in an amount of 5 to 10 weight percent, based on 100 weight percent of the total base paint. For example, 5%, 6%, 7%, 8%, 9%, 10% are mentioned.

In the present invention, the defoaming agent (the first defoaming agent and the second defoaming agent) can be used for suppressing and defoaming the system. In some embodiments, in the base paint, the first defoamer is a mineral oil hydrophobic fumed silica. In some embodiments, the first defoaming agent is of type NXZ, has a wide applicable system and good product stability, and further can be of type NXZ from NOPCO.

In some embodiments, the first defoamer is present in the multicolor coating in an amount of 0.2 to 0.5 parts by weight, for example, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, etc., based on 100 parts by weight of the total base paint.

In some embodiments, the dispersant is a polyacrylate salt, and further may be a polyacrylate sodium salt. In some embodiments, the dispersant is P30 type, has stable system, is not easy to generate bubbles, has high dispersion efficiency, and further can be ECODIS P30 type of COATEX company.

In some embodiments, the dispersant is present in the multicolor coating in an amount of 0.1 to 0.3 parts by weight, for example, 0.1, 0.15, 0.2, 0.25, 0.3, etc., based on 100 parts by weight of the total base paint

In the invention, the film-forming aids (first film-forming aid and second film-forming aid) can be used for assisting the film formation of the base paint and the continuous phase emulsion. In some embodiments, the first film forming aid is alcohol ester twelve. In some embodiments, the first film forming aid is Texanol type, has low odor, is not easily hydrolyzed, and has high film forming efficiency, and further can be Texanol type of EASTMAN company.

In some embodiments, the first film-forming assistant is present in the multicolor paint in an amount of 0.2 to 0.5 parts by weight, for example, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, etc., based on 100 parts by weight of the total base paint.

According to the invention, the hydroxyethyl cellulose is matched with the hydrophobically modified hydroxyethyl cellulose, so that the viscosity of the base paint can be improved, the emulsion can be compatible, and the association and thickening of the glue solution can be protected. In some embodiments, the hydroxyethyl cellulose is a cellulose ether. In some embodiments, the hydroxyethyl cellulose is of the HBR250 type, has good solubility, is not easy to hydrolyze in enzyme, has stable quality, and further can be of the HBR250 type of Ashland company. In some embodiments, the hydrophobically modified hydroxyethyl cellulose is a cellulose ether derivative. In some embodiments, the hydrophobically modified hydroxyethyl cellulose is type HE10K, has high thickening efficiency, has non-newtonian fluid characteristics in aqueous solution required for granulation, and further can be type HE10K from Ashland corporation.

According to the invention, when the weight part ratio of the hydroxyethyl cellulose to the hydrophobically modified hydroxyethyl cellulose is close to 1:1 in the formula, the optimal synergistic effect can be achieved. In some embodiments, the weight part ratio of the hydroxyethyl cellulose to the hydrophobically modified hydroxyethyl cellulose is (0.8-1.2): 1, for example, in parts by weight of 0.8:1, 0.9:1, 1:1, 1.1:1, 1.2:1, etc.

In some embodiments, the weight percent of hydroxyethyl cellulose in the multi-color coating corresponds to 0.2% to 1% based on 100% by weight of the total base paint. For example, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.8%, 0.9%, 1%. In some embodiments, the hydrophobically modified hydroxyethyl cellulose is present in the multi-color coating in an amount of 0.2 to 1 weight percent, based on 100 weight percent of the total base paint. For example, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.8%, 0.9%, 1%.

In some embodiments, the first pH adjusting agent is 2-amino-2-methyl-1-propanol (AMP). In some embodiments, the first pH adjusting agent is AMP-95, is universally antimicrobial, highly stable, and further may be AMP-95 from DOW.

In some embodiments, the first pH adjusting agent is present in the multicolor coating in an amount of 0.2 to 0.5 parts by weight, for example, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, etc., based on 100 parts by weight of the total base paint.

According to the invention, the pearl powder can endow a paint film with an ideal gloss effect, and the smoother the surface of the paint, the more beautiful the paint film effect. In some embodiments, the pearlescent powder is selected from a color changing pearlescent powder or a temperature changing pearlescent powder, wherein the color changing pearlescent powder can change color with the change of light, and the temperature changing pearlescent powder can change color with the change of temperature. In some embodiments, the pearlescent flakes are a mixture of color-changing pearlescent flakes and warm-changing pearlescent flakes. In some embodiments, the color changing pearlescent powder is type QC7519L and the temperature changing pearlescent powder is type KJ-11-31.

In some embodiments, the amount of the color-changing pearlescent powder in the multicolor paint is 1-3 parts by weight, for example, 1, 2.3, 1.5, 1.6, 1.8, 2, 2.1, 2.2, 2.5, 2.6, 2.8, 3, etc., based on 100 parts by weight of the total base paint. In some embodiments, the amount of the temperature-sensitive pearlescent powder in the multicolor paint is 3-5 parts by weight, for example, 3, 3.5, 4, 4.5, 5, etc., based on 100 parts by weight of the total base paint.

In some embodiments, the second biocide is any one or any two or three of CIT, BIT, and MIT. In some embodiments, the second biocide is a mixture of CIT and MIT. In some embodiments, the second biocide is a mixture of BIT and MIT. In some embodiments, the second biocide is a mixture of CIT, BIT, and MIT. In some embodiments, the second biocide is type 1.5M, and further may be type 1.5M wink chemistry. In some embodiments, the second biocide is of the KTL type. In some embodiments, the second bactericide is a mixture of type 1.5M and type KTL, and is stable, efficient and broad in sterilization spectrum.

In some embodiments, the second biocide is present in the multi-color coating in an amount of 0.2 to 0.8 parts by weight, for example 0.2, 0.25, 0.3, 0.35, 0.4, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, etc., based on 100 parts by weight of the total base paint.

In some embodiments, the second bactericide is a mixture of type 1.5M and type KTL, wherein type 1.5M is present in the multi-color paint in an amount of 0.2 to 0.4 parts by weight and type KTL is present in the multi-color paint in an amount of 0.2 to 0.4 parts by weight, based on 100 parts by weight of the total base paint.

In the invention, the second protective glue solution is used for improving the viscosity of the base paint and assisting in granulation. In some embodiments, the composition of the second protective gum solution is the same as the type and ratio of the components of the first protective gum solution described above.

In some embodiments, the first thickener is a hydrophobically modified polyacrylate, such as, for example, TT-935, TT-615, ASE-60, and the like.

In some embodiments, the first thickener is an alkali swelling thickener, and has high thickening efficiency and good leveling property.

In some embodiments, the first thickener is type TT-935, and further may be type TT-935 from DOW corporation.

In some embodiments, the first thickener is present in the multicolor coating in an amount of 0.3 to 1 part by weight, for example, 0.3, 0.4, 0.5, 0.6, 0.8, 0.9, 1, etc., based on 100 parts by weight of the total base paint.

In the invention, the basic paint can contain titanium dioxide or not. Titanium dioxide can be used to adjust the gloss of paint films and to change the hiding power of dry films.

In some embodiments, the titanium dioxide is titanium dioxide. In some embodiments, the titanium dioxide is rutile, and further may be LOMON R996.

In some embodiments, the weight portion of the titanium dioxide in the multicolor paint is 0 to 2 parts, further 0.3 to 1 part, for example, 0, 0.3, 0.5, 0.8, 1.2, 1.5, 1.8, 2, etc. based on 100 parts by weight of the total amount of the base paint.

In the present invention, the base paint may or may not contain a mildewcide. The mildew inhibitor can be used for inhibiting the growth of mildew. In some embodiments, the mildewcide is 2-n-octyl-4-isothiazolin-3-One (OIT). In some embodiments, the mold inhibitor may be selected from WME type, and further may be WME type of wink chemical ltd.

In some embodiments, the amount of the mildewcide in the multicolor paint may be 0.2 to 0.4 part by weight, for example, 0, 0.2, 0.25, 0.3, 0.35, and 0.4 part by weight, based on 100 parts by weight of the total amount of the base paint.

In the invention, water in the base paint is used as a continuous phase to assist various dispersed phases to be uniformly dispersed. In some embodiments, the water is present in the multicolor coating in an amount of 67 to 83 parts by weight based on 100 parts by weight of the total base paint. For example 67, 68, 69, 70, 72, 75, 76, 78, 80, 81, 82, 83 parts by weight.

In some embodiments, the water used is deionized water, which can reduce the effect of calcium and magnesium ions in tap water on the system.

In some embodiments, the base paint is prepared from raw materials comprising: 66-86 parts of water, 5-10 parts of pure acrylic emulsion, 0.2-0.5 part of first defoaming agent, 0.1-0.3 part of dispersing agent, 0.2-0.5 part of film forming additive, 0.2-1 part of hydroxyethyl cellulose, 0.2-1 part of hydrophobically modified hydroxyethyl cellulose, 0.2-0.5 part of first pH regulator, 1-3 parts of color-changing pearl powder, 3-5 parts of temperature-changing pearl powder, 0-2 parts of titanium dioxide, 0-0.4 part of mildew preventive, 0.2-0.8 part of second bactericide, 3-8 parts of second protective adhesive solution and 0.3-1 part of first thickening agent. Wherein, the weight parts of the water can be 66-86 independently, such as 67, 68, 70, 72, 74, 75, 78, 80, 82, 83 and the like; the parts by weight of the acrylic emulsion can be independently 5-10, such as 5, 6, 7, 8, 9, 10, etc.; the weight portion of the first defoaming agent independently can be 0.2-0.5, such as 0.2, 0.3, 0.4, 0.5 and the like; the weight portion of the dispersant can be 0.1-0.3 independently, such as 0.1, 0.2, 0.3 and the like; the film-forming assistant can be 0.2-0.5, for example, 0.2, 0.3, 0.4, 0.5, etc. by weight; the hydroxyethyl cellulose may independently be present in an amount of 0.2 to 1 part by weight, for example 0.2, 0.4, 0.5, 0.8, 1, etc.; the weight portion of the hydrophobically modified hydroxyethyl cellulose can be independently 0.2-1, such as 0.2, 0.4, 0.5, 0.8, 1 and the like; the weight portion of the first pH adjuster independently may be 0.2 to 0.5, such as 0.2, 0.3, 0.4, 0.5, and the like; the parts by weight of the color-changing pearl powder can be independently 1-3, such as 1, 2, 3 and the like; the weight portion of the temperature-change pearl powder can be 3-5 independently, for example, 3, 4, 5, etc.; the weight portion of the titanium dioxide independently can be 0-2, and further can be 0.3-2, such as 0, 0.3, 0.4, 0.5, 0.6, 0.8, 1, 1.2, 1.5, 1.6, 1.8, 1.9, 2, etc.; the weight portion of the mildew preventive is independently 0 to 0.4, and further 0.2 to 0.4, such as 0, 0.1, 0.2, 0.25, 0.3, 0.35, 0.4, etc.; the weight portion of the second bactericide can be independently 0.2-0.8, such as 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, etc.; the weight parts of the second protective colloid solution can be 3-8 independently, such as 3, 4, 5, 6, 7, 8 and the like; the weight fraction of the first thickener may be independently 0.3 to 1, for example, 0.3, 0.5, 0.6, 0.8, 1, and the like.

In the invention, the continuous phase can wrap particles to assist in forming a film and can also improve the stain resistance and water resistance of the dry film.

In some embodiments, the continuous phase is prepared from a feedstock comprising: the coating comprises a silicone-acrylate emulsion, a second defoaming agent, a second film forming aid, a second pH regulator, a second thickening agent, a third bactericide and water.

In the invention, the silicone-acrylate emulsion can wrap various components to form a film and provide stain resistance and weather resistance of a dry film base. In some embodiments, the silicone acrylic emulsion is an emulsion of an acrylate copolymer. In some embodiments, the silicone acrylic emulsion has a solids content of 40% ± 1%, such as 39%, 39.2%, 39.3%, 39.6%, 39.8%, 40.1%, 40.2%, 40.5%, 40.6%, 40.8%, 41%, and the like, for example.

In some embodiments, the silicone acrylic emulsion is type BLJ-643. In some embodiments, the silicone acrylic emulsion is type 3799A, has low odor, good compatibility with protective glue solutions, and good stain resistance, and further can be type 3799A from badrich.

In some embodiments, the silicone-acrylic emulsion is present in the multicolor coating in an amount corresponding to 30 to 40 weight percent, based on 100 weight percent of the total amount of the continuous phase. For example, 30%, 31%, 32%, 35%, 38%, 39%, 40%, etc.

In the continuous phase, the second defoaming agent is mineral oil hydrophobic fumed silica. In some embodiments, the second defoamer is of an NXZ type, has a wide applicable system and good product stability, and further can be an NXZ defoamer of nopinaceae.

In some embodiments, the second defoaming agent is present in the multicolor coating in an amount of 0.2 to 0.5 parts by weight, and further 0.25 to 0.45 parts by weight, based on 100 parts by weight of the total continuous phase, such as 0.2, 0.25, 0.3, 0.4, 0.45, 0.5, and the like.

In the invention, the second film forming auxiliary agent can assist the film formation of the continuous phase emulsion, and the second film forming auxiliary agent is the alcohol ester twelve.

In some embodiments, the second film forming aid is Texanol type, has low odor, is not easily hydrolyzed, and has high film forming efficiency, and further can be Texanol type of EASTMAN company.

In some embodiments, the second film-forming aid is present in the multicolor coating in an amount of 1.1 to 1.5 parts by weight, such as 1.2, 1.25, 1.3, 1.4, 1.5 parts by weight, based on 100 parts by weight of the total continuous phase.

In the present invention, the second pH adjusting agent is AMP. In some embodiments, the second pH adjusting agent is AMP-95, is universally antimicrobial, highly stable, and further may be AMP-95 from DOW.

In some embodiments, the second pH adjusting agent is present in the multicolor paint in an amount of 0.2 to 0.5 parts by weight, for example, 0.2, 0.25, 0.3, 0.4, 0.45, 0.5, etc., based on 100 parts by weight of the total amount of the continuous phase.

In some embodiments, the third fungicide is any one or any two or three of CIT, BIT and MIT. In some embodiments, the third biocide is a mixture of CIT and MIT. In some embodiments, the third biocide is a mixture of BIT and MIT. In some embodiments, the third fungicide is a mixture of CIT, BIT and MIT. In some embodiments, the third fungicide is in the form 1.5M, and further may be in the form 1.5M of wink chemistry. In some embodiments, the third bactericide is type KTL. In some embodiments, the third bactericide is a mixture of type 1.5M and type KTL, which is stable, highly effective and has a broad spectrum of bactericidal activity.

In some embodiments, the third fungicide is included in the multicolor paint in an amount of 0.2 to 0.8 parts by weight, for example, 0.2, 0.25, 0.3, 0.35, 0.4, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, etc., based on 100 parts by weight of the total amount of the continuous phase.

In some embodiments, the third bactericide is a mixture of type 1.5M and type KTL, wherein the amount of type 1.5M in the multicolor paint is 0.2-0.4 parts by weight and the amount of type KTL in the multicolor paint is 0.2-0.4 parts by weight, based on 100 parts by weight of the total amount of the base paint.

In some embodiments, the second thickener is a hydrophobically modified polyacrylate, such as, for example, TT935, TT-615, ASE-60, and the like. In some embodiments, the second thickener is an alkali swelling thickener, which has good mechanical stability and high thickening efficiency. In some embodiments, the major component of the second thickener is a hydrophobically modified polyacrylate. In some embodiments, the second thickener is type TT-935, which further may be type TT-935 from DOW corporation, odorless, high in thickening efficiency, and good in product batch stability.

In some embodiments, the second thickener is present in the multicolor paint in an amount of 0.3 to 1 part by weight, for example, 0.3, 0.4, 0.5, 0.6, 0.8, 0.9, 1, etc., based on 100 parts by weight of the total continuous phase.

In the present invention, the continuous phase may or may not contain an antifreeze. The anti-freeze agent can be used for preventing the coating from being frozen to destroy the stability of the emulsion.

In some embodiments, the antifreeze is ethylene glycol, and further may be ethylene glycol of Zhonghai Shell.

In some embodiments, the amount of the anti-freezing agent in the multicolor paint is 0 to 2 parts by weight, and further 1 to 2 parts by weight, based on 100 parts by weight of the total amount of the continuous phase, such as 0, 0.5, 0.8, 1, 1.5, 1.8, 2, and the like.

In the present invention, the continuous phase may or may not contain a mildewcide. The mildew inhibitor can be used for inhibiting the growth of mildew in a dry film of a paint film. In some embodiments, the mold inhibitor is OIT. In some embodiments, the mold inhibitor is of the WME type, and further may be of the WME type of wink chemical ltd.

In some embodiments, the amount of the mildew inhibitor in the multicolor paint is 0-0.4 parts by weight, for example, 0, 0.1, 0.2, 0.3, 0.4, etc., based on 100 parts by weight of the total amount of the continuous phase.

In the present invention, the water in the continuous phase is used for uniformly dispersing the dispersed phase as the continuous phase auxiliary system, and in some embodiments, the weight parts of the water in the multicolor paint correspond to 52.3-66.6 parts, for example, 53, 55, 56, 58, 60, 61, 62, 63, 64, 65, 66, etc. based on 100 parts by weight of the total amount of the continuous phase.

In some embodiments, the water in the continuous phase is deionized water, which can reduce the influence of calcium and magnesium ions in tap water on the stability of the system.

In some embodiments, the continuous phase is prepared from a feedstock comprising: 52.3-66.6 parts of water, 30-40 parts of silicone-acrylate emulsion, 0.2-0.5 part of second defoaming agent, 1.1-1.5 parts of second film forming aid, 0.2-0.5 part of second pH regulator, 0.3-1 part of second thickening agent, 0.2-0.8 part of third bactericide, 0-3 parts of antifreezing agent and 0-0.4 part of mildew preventive. Wherein the weight parts of water independently can be 54-68, such as 54, 55, 57, 58, 60, 62, 64, 65, 67, 68, etc.; the weight portion of the silicone acrylic emulsion can be 30-40 independently, such as 30, 32, 35, 37, 38, 40 and the like; the weight portion of the second antifoaming agent independently may be 0.2 to 0.5, such as 0.2, 0.3, 0.4, 0.5, etc.; the weight portion of the second film forming aid may be 1.1 to 1.5, for example, 1.1, 1.2, 1.3, 1.4, 1.5, etc.; the weight portion of the second pH adjuster independently may be 0.2 to 0.5, such as 0.2, 0.3, 0.4, 0.5, etc.; the weight parts of the second thickener independently can be 0.3-1, such as 0.3, 0.5, 0.6, 0.8, 1, etc.; the weight parts of the third bactericide independently can be 0.4-0.8, such as 0.4, 0.5, 0.6, 0.7, 0.8 and the like; the amount of the antifreeze is independently 0 to 3 parts by weight, further 0.2 to 3 parts by weight, further 1 to 3 parts by weight, further 1.2 to 2.5 parts by weight, for example, 0, 0.2, 0.5, 0.8, 1, 1.1, 1.2, 1.3, 1.5, 1.7, 1.8, 1.9, 2, 2.5, 3, etc.; the weight portion of the antifungal agent may be 0 to 0.4, and further 0.2 to 0.4, such as 0, 0.1, 0.2, 0.25, 0.3, 0.35, 0.4, and the like.

In some embodiments, the first protective gum solution is prepared from a starting material comprising: 6-8 parts of protective adhesive, 0.2-0.3 part of first bactericide and 91.8-93.8 parts of water; the base paint is prepared from raw materials comprising the following components: 67-83 parts by weight of water, 5-10 parts by weight of pure acrylic emulsion, 0.2-0.5 part by weight of first defoaming agent, 0.1-0.3 part by weight of dispersant, 0.2-0.5 part by weight of first film forming auxiliary agent, 0.2-1 part by weight of hydroxyethyl cellulose, 0.2-1 part by weight of hydrophobically modified hydroxyethyl cellulose, 0.2-0.5 part by weight of first pH regulator, 1-3 parts by weight of color-changing pearl powder, 3-5 parts by weight of temperature-changing pearl powder, 0-2 parts by weight of titanium dioxide (further 0.3-2 parts by weight), 0-0.4 part by weight of preservative (further 0.2-0.4 part by weight), 0.2-0.4 part by weight of second bactericide, 3-8 parts by weight of second protective adhesive solution and 0.3-1 part by weight of first thickener; the continuous phase is prepared from a feedstock comprising: 54 to 68 parts by weight of water, 30 to 40 parts by weight of a silicone-acrylic emulsion, 0.2 to 0.5 part by weight of a second defoaming agent, 1.1 to 1.5 parts by weight of a first film forming aid, 0 to 3 parts by weight of an antifreezing agent such as a combination of an ethylene glycol antifreezing agent and an alcohol ester dodecafreezing agent, further exemplified by 0 to 2 parts by weight (further 1 to 2 parts by weight) of an ethylene glycol antifreezing agent and 0 to 0.5 part by weight (further 0.2 to 0.5 part by weight) of an alcohol ester dodecafreezing agent, 0.2 to 0.5 part by weight of a second pH adjusting agent, 0.4 to 0.8 part by weight of a third bactericide, 0 to 0.4 part by weight of a mildewproofing agent (further 0.2 to 0.4 part by weight), and 0.3 to 1 part by weight of a second thickener. Preferred and exemplary parts by weight of each component include, but are not limited to, those described above.

The second aspect of the present invention provides a method for preparing a multicolor paint, which can be used for preparing the multicolor paint provided by the first aspect of the present invention. The preparation method has the advantages of stability, rapidness and high efficiency.

In a second aspect of the present invention, there is provided a preparation method comprising the preparation steps of: according to the raw material formula of the multicolor paint disclosed by the first aspect of the invention, the base paint and the first protective glue solution are mixed and then mixed with the continuous phase to prepare the multicolor paint. Wherein the base paint, the first protective colloid solution and the continuous phase need to be prefabricated.

In some embodiments, the first protective gum solution is prepared using the following steps: and mixing the protective glue and water, dispersing, adding a bactericide (marked as a first bactericide), and continuously dispersing until the bactericide is completely dissolved to prepare a first protective glue solution.

In some embodiments, the first protective gum solution is prepared using the following steps: mixing protective glue and water, dispersing for 60-90 min under the stirring condition of 1300-1700 r/min, adding a first bactericide, and continuously stirring until the first bactericide is completely dissolved to prepare a first protective glue solution.

In some specific embodiments, the first protective gum solution is prepared by the steps of: adding deionized water, adding the protective glue under the stirring condition of 300r/min, dispersing for 70min under the stirring condition of 1500r/min, adding the first bactericide, and continuously stirring until the mixture is completely and uniformly mixed (about 5-8 min) to obtain a first protective glue solution.

In some embodiments, the base paint is prepared using the following steps:

s100: preparing a first mixture

Mixing a first defoaming agent, a dispersing agent, a first film forming auxiliary agent, hydroxyethyl cellulose, hydrophobically modified hydroxyethyl cellulose, a first pH regulator and water, and dispersing to obtain a first mixture. The above components are not limited to the order of addition, and may be added separately or in combination.

In some embodiments, in step S100, the first defoaming agent, the dispersing agent, the first film forming aid, the hydroxyethyl cellulose, the hydrophobically modified hydroxyethyl cellulose, the first pH adjusting agent and water are mixed under stirring at 200 to 400r/min, and dispersed for 5 to 8min under stirring at 500 to 900r/min to obtain the first mixture.

In some embodiments, in step S100, deionized water is added; adding the defoaming agent, the dispersing agent, the film-forming assistant, the hydroxyethyl cellulose, the hydrophobically modified hydroxyethyl cellulose and the pH regulator under the stirring condition of 300r/min, wherein the adding sequence of the components is not limited, and the components can be added separately or in combination. Dispersing for 5min under the stirring condition of 700r/min to obtain a first mixture.

S200: preparing the second mixture

In some embodiments, titanium dioxide and pearlescent powder are added to the first mixture and dispersed to produce a second mixture. The titanium dioxide and the pearl powder are not limited in the adding sequence, and can be added separately or in combination.

In some embodiments, in step S200, titanium dioxide and pearl powder are added to the first mixture, and the mixture is dispersed for 10 to 15min under the stirring condition of 800 to 1200r/min to obtain a second mixture.

In some specific embodiments, in step S200, the color-changing pearl powder, the temperature-changing pearl powder and the titanium dioxide are added to the first mixture, and dispersed for 15min under the stirring condition of 1000r/min to obtain a second mixture. The color-changing pearl powder, the temperature-changing pearl powder and the titanium dioxide are not limited in the adding sequence, and can be added separately or in combination.

S300: preparation of the base paint

In some embodiments, the base paint is prepared by adding the acrylic emulsion to the first mixture, dispersing, then adding the first thickener, adding the preservative, adding the second bactericide, adding the second protective gum solution, and mixing until homogeneous. The order of addition of the first thickener, the preservative, the second bactericide and the second protective colloid solution is not limited, and the first thickener, the preservative, the second bactericide and the second protective colloid solution may be added separately or in combination.

In some embodiments, the base paint is prepared by adding the acrylic emulsion to the second mixture, dispersing, then adding the first thickener, adding the preservative, adding the second biocide, adding the second protective gum solution, and mixing until homogeneous. The order of addition of the first thickener, the preservative, the second bactericide and the second protective colloid solution is not limited, and the first thickener, the preservative, the second bactericide and the second protective colloid solution may be added separately or in combination.

In some embodiments, in step S300, the acrylic emulsion is added to the second mixture, and dispersed for 2 to 5 minutes under the stirring condition of 500 to 900r/min, and then the first thickener is added, the second bactericide is added, the second protective colloid solution is added, and the mixing is continued for 8 to 10 minutes, so as to obtain the base paint. The order of addition of the first thickener, the preservative, the second bactericide and the second protective colloid solution is not limited, and the first thickener, the preservative, the second bactericide and the second protective colloid solution may be added separately or in combination.

In some specific embodiments, in step S300, the acrylic emulsion is added to the second mixture under the stirring condition of 700r/min, and dispersed for 2min, and then the first thickener is added, the mildew preventive is added, the first and second bactericides are added, the second protective colloid solution is added, and the mixing is continued for 10min, so as to obtain the base paint. The adding sequence of the first thickening agent, the mildew preventive, the second bactericide and the second protective glue solution is not limited, and the first thickening agent, the mildew preventive, the second bactericide and the second protective glue solution can be added separately or in combination.

In some embodiments, the continuous phase is prepared using the following steps: and mixing the second defoaming agent, the second film forming aid, the second pH regulator and water, dispersing, adding the silicone-acrylic emulsion, adding the second thickening agent and the third bactericide, and mixing to obtain the continuous phase. In the above operation, the second thickener and the third bactericide are not limited to the order of addition, and may be added separately or in combination.

In some embodiments, the continuous phase is prepared using the following steps: and mixing the second defoaming agent, the second film forming aid, the antifreezing agent, the second pH regulator and water, dispersing, adding the silicone-acrylic emulsion, adding the second thickening agent and the third bactericide, and mixing to prepare the continuous phase. In the above operation, the second thickener and the third bactericide are not limited to the order of addition, and may be added separately or in combination.

In some embodiments, the continuous phase is prepared using the following steps: and mixing the second defoaming agent, the second film forming aid, the second pH regulator and water, dispersing, adding the silicone-acrylic emulsion, adding the second thickening agent, adding the third bactericide, adding the mildew preventive, and mixing to prepare the continuous phase. In the above operation, the second thickener, the third bactericide and the mildewproof agent are not limited to be added in the order, and may be added separately or in combination.

In some embodiments, the continuous phase is prepared using the following steps: and mixing a second defoaming agent, a second film forming auxiliary agent, an antifreezing agent, a second pH regulator and water, dispersing, adding the silicone-acrylic emulsion, adding a second thickening agent, adding a third bactericide, adding an mildewproof agent, and mixing to obtain the base paint. In the above operation, the second thickener, the third bactericide and the mildewproof agent are not limited to be added in the order, and may be added separately or in combination.

In some embodiments, the continuous phase is prepared using the following steps: and mixing a second defoaming agent, a second film forming auxiliary agent, an antifreezing agent, a second pH regulator and water for 3-5 min under the stirring condition of 200-400 r/min, then dispersing for 10-15 min under the stirring condition of 500-900 r/min, adding a silicone-acrylic emulsion, adding a second thickening agent, adding a first bactericide, adding a second bactericide, adding a mildew preventive, and mixing for 5-8 min to prepare a continuous phase.

In some specific embodiments, the continuous phase is prepared using the following steps: and adding deionized water, adding a second defoaming agent, a second film forming aid, an antifreezing agent and a second pH regulator under the stirring condition of 300r/min, and mixing for 3-5 min, wherein the adding sequence of the second defoaming agent, the second film forming aid, the antifreezing agent and the second pH regulator is not limited, and the second defoaming agent, the second film forming aid, the antifreezing agent and the second pH regulator can be added separately or in combination. Then dispersing for 5min under the stirring condition of 700r/min, adding silicone-acrylate emulsion, and mixing for 2 min. And adding the second thickening agent, the third bactericide and the mildew preventive, and continuously mixing for 8min to obtain a continuous phase. The second thickening agent, the third bactericide and the mildew preventive are not limited in the adding sequence, and can be added separately or in combination.

In some embodiments, the preparation of the multicolor paint comprises the following steps: and adding the base paint into the first protective adhesive solution, precutting, cutting and granulating, then adding the continuous phase, and uniformly mixing to obtain the multicolor paint.

In some embodiments, the multicolor paint is prepared by the following steps: and (2) taking the base paint, the protective adhesive and the continuous phase according to the weight ratio of (2-6) to (1-3) to (1-7), adding the base paint into the protective adhesive solution according to the proportion, precutting, cutting and granulating, then adding the continuous phase, and uniformly mixing to obtain the multicolor paint.

In some specific embodiments, the multicolor paint is prepared by the following steps: taking the base paint, the protective adhesive and the continuous phase according to the weight ratio of 3:2:5, adding the base paint into a protective adhesive solution according to the proportion, precutting by using a silk screen with the aperture of 1cm multiplied by 1cm, cutting and granulating by using a dispersion disc to an appropriate size, then adding the continuous phase, and uniformly mixing to obtain the multicolor paint.

In some embodiments of the present invention, after the dispersion plate is cut and granulated, shuttle-shaped particles having an average particle diameter of 1mm can be obtained.

Some specific examples are as follows.

Experimental parameters not described in the following specific examples are preferably referred to the guidelines given in the present application, and may be referred to experimental manuals in the art or other experimental methods known in the art, or to experimental conditions recommended by the manufacturer.

The starting materials and reagents mentioned in the following specific examples can be commercially available or can be prepared by a person skilled in the art according to known means.

Raw materials:

protective rubber powder which is purchased from Bike chemical Co., Ltd, has the model of S482 and contains magnesium lithium silicate;

the bactericide is purchased from Wenke chemical Co., Ltd, is 1.5M, KTL and WME, and comprises 5-chloro-2-methyl-4-isothiazoline-3-ketone and a mixture of 2-methyl-4-isothiazoline-3-ketone; BIT and MIT blends; OIT;

the pure acrylic emulsion is purchased from Wanhua chemical group, Inc., and has the model of 8029, the component of the pure acrylic emulsion is acrylate polymer, and the solid content is 48% +/-1%;

a dispersant, which is from COATEX company and has the model of ECODIS P30, and the component of the dispersant is polyacrylic acid sodium salt;

cellulose from Ashland, model numbers HBR250, HE10K, molecular weights 3 ten thousand, 10 ten thousand respectively;

titanium dioxide, available from LOMON corporation, model number R996;

the color-changing pearl powder is purchased from Guangxi seven-color pearl coating GmbH, and has the model of QC7519L, and the component is metal coated mica powder;

the temperature-change pearl powder is purchased from thousand-color-change new coating science and technology limited company, has the model of KJ-11-31, and comprises synthetic materials;

the defoaming agent is from NOPCO company, the model is NXZ, and the component is mineral oil hydrophobic fumed silica;

the film-forming additive is sourced from EASTMAN company, has a Texanol model and is composed of an alcohol ester twelve;

a pH regulator from DOW company, with AMP-95 as component 2-amino-2-methyl-1-propanol;

the thickener is from DOW company, has the model of TT-935, and comprises hydrophobic modified polyacrylate;

silicone-acrylic emulsion, available from Bade Fukuyu Co., Ltd, model 3799A; the component is acrylic copolymer with solid content of 40% +/-1%;

the antifreezing agent, Zhonghai Shell glycol, has a molecular weight of 62.

Example 1

1.1 preparation of the protective colloid solution

Taking the protective colloid solution as 100 percent by weight (the total weight is 215g), adding 92.8 percent of deionized water, adding 7 percent of S482 protective colloid at a constant speed (1g/S) at a rotating speed of 300r/min, adjusting the rotating speed to 1500r/min, dispersing at a high speed for 80min, adding 0.2 percent of KTL bactericide, continuously dispersing until the KTL bactericide is completely dissolved (about 5-8 min), and standing overnight for later use.

1.2 preparation of the base paint

Based on 100 percent of the weight percentage of the base paint (the total weight is 300g), adding 77.8 percent of deionized water, adding 0.2 percent of NXZ defoaming agent, 0.1 percent of P30 dispersant, 0.3 percent of alcohol ester dodecafilming auxiliary agent, 0.5 percent of HBR250 hydroxyethyl cellulose, 0.5 percent of HE10K hydrophobic modified hydroxyethyl cellulose and 0.3 percent of AMP-95pH regulator at the rotating speed of 300R/min, adjusting the rotating speed to 700R/min for dispersing for 5min, then adding 1 percent of QC7519L color-changing pearl powder, 5 percent of KJ-11-31 temperature-changing powder and 0.3 percent of R996 titanium dioxide, increasing the rotating speed to 1000R/min, dispersing for 15min, reducing the rotating speed to 700R/min, adding 8 percent of 8029 pure acrylic emulsion, mixing for 2min, then adding 0.4 percent of TT-935 alkali solution thickener, 0.2 percent of 1.5M bactericide, 0.2 percent of 1.2 percent of bactericide, 0.2 percent of WME protective solution (WME) of WM1.8 percent of swelling-preventing glue, stopping stirring for later use.

1.3 preparation of the continuous phase

Adding 65.6 percent of deionized water into a continuous phase (the total weight is 500g) in percentage by weight, adding 0.2 percent of NXZ defoaming agent, 1.1 percent of Texanol film-forming additive, 1 percent of glycol antifreezing agent and 0.3 percent of AMP-95pH regulator at the rotating speed of 300r/min, adjusting the rotating speed to 700r/min, dispersing for 5min, then adding 30 percent of 3799A silicone-acrylic emulsion, mixing for 2min, adding 1 percent of TT-935 alkali swelling thickener, 0.2 percent of KTL bactericide, 0.2 percent of 1.5M bactericide and 0.4 percent of WME fungicide, continuously mixing for 8min, and stopping stirring for later use.

1.4 preparation of multicolor coatings

Taking appropriate amount of the base paint, the protective adhesive solution and the continuous phase respectively 300g, 200g and 500g, namely the weight ratio of 3:2:5, adopting the following mixing mode: adding the base paint into the protective adhesive solution according to the proportion, precutting by using a silk screen with the aperture of 1cm multiplied by 1cm, cutting and granulating by using a dispersion disc, adding the continuous phase, and uniformly mixing to obtain the multicolor paint.

Example 2

A multicolor paint was prepared in substantially the same manner as in example 1, except that:

the proportion of the base paint, the protective adhesive and the continuous phase is adjusted to 4.5:3: 2.5;

the other parameters including the kinds of raw materials, the amounts of the raw materials, and the preparation method were the same as in example 1.

Example 3

the ratio of the base paint, the protective adhesive and the continuous phase is adjusted to 2:1: 7;

Example 4

in the preparation of the protective colloid solution: adding 91.8% of deionized water, 8% of protective rubber powder and 0.2% of first bactericide;

in the preparation of the base paint: adding 74.3% of deionized water, 10% of acrylic emulsion, 0.4% of defoaming agent, 0.1% of dispersing agent, 0.4% of film-forming aid, 0.2% of hydroxyethyl cellulose, 0.7% of hydrophobic modified hydroxyethyl cellulose, 0.3% of pH regulator, 2.5% of color-changing pearl powder, 3.5% of temperature-changing pearl powder, 0.5% of titanium dioxide, 0.2% of first bactericide, 0.2% of second bactericide, 0.4% of mildew preventive, 6% of protective colloid solution and 0.3% of alkali swelling thickener;

Example 5

in the preparation of the continuous phase: adding 453.8% of deionized water, 40% of silicone-acrylic emulsion, 0.3% of defoaming agent, 1.5% of film-forming aid, 3% of antifreezing agent, 0.3% of pH regulator, 0.2% of first bactericide, 0.2% of second bactericide, 0.3% of mildew preventive and 0.4% of second thickening agent;

Comparative example 1

in the preparation of the base paint: adding 78.8% of deionized water, 0.1% of hydroxyethyl cellulose and 0.1% of hydrophobically modified hydroxyethyl cellulose;

Comparative example 2

in the preparation of the base paint: adding 77% of deionized water, 2% of hydroxyethyl cellulose and no hydrophobically modified hydroxyethyl cellulose;

Comparative example 3

the proportion of the base paint, the protective adhesive and the continuous phase is adjusted to 7:2: 1;

Comparative example 4

in the preparation of the base paint: replacing pure acrylic emulsion with Dow SF230 emulsion;

Comparative example 5

in the preparation of the continuous phase: the silicone-acrylate emulsion was replaced with BLJ-643 emulsion from Boehringer corporation;

Comparative example 6

in the preparation of the base paint: adding 78.8% of deionized water and 3% of pure acrylic emulsion;

Comparative example 7

in the preparation of the base paint: adding 78% of deionized water, 5% of titanium dioxide and 1.5% of KC8700 pearl powder of Fujian Kuncao materials science and technology corporation;

Performance testing

The performance of the multicolor coatings prepared in examples 1-5 and comparative examples 1-7 was tested by using HG/T4343 plus 2012 aqueous multicolor architectural coating as a test reference standard. The test results are shown in Table 1.

Table 1: technical requirements and performance test results of internal water-based multicolor architectural coating

The colorful coatings prepared in the examples 1-5 and the comparative examples 1-7 are subjected to an apparent performance test. The test results are shown in Table 2.

Table 2 apparent performance test results

In table 2, excellent: the method can perfectly meet the agreed performance requirements without difference; good: slight differences from the agreed upon effect requirements exist; in general: the requirement of the effect is greatly different from the agreed requirement; difference: the performance is completely different from the agreed performance requirements or the performance test cannot be performed.

According to the data in tables 1 and 2, the colorful coating provided by the invention has the advantages of short surface drying time, normal appearance of a coating film, certain temperature resistance, difficult deterioration, stable storage, certain acid resistance, alkali resistance and water resistance and better comprehensive performance; the colorful paint provided by the invention has the advantages of smooth surface, uniform color points, obvious pearl warming effect and excellent visual impression.

It can also be seen from the data in tables 1 and 2 that the basic performance requirements can be met by using the raw material formulations provided by the present invention, and that changing any of the parameters therein may result in the loss of some or all of the properties. The unreasonable collocation of the cellulose can cause the association degree of the cellulose in the base paint with the emulsion and the protective adhesive to change, thereby influencing the particle shape in the product granulation process and the final product board effect, when the use amount of the cellulose is insufficient (comparative example 1), the base paint has low viscosity, the granulated particles are soft and have no stable shape, and the friability control difficulty in the granulation process is large; when the collocation of the cellulose is unreasonable (comparative example 2), the non-Newtonian fluid performance of the base paint endowed by the single cellulose is lower than that of the compound cellulose (example 1), the granulation particle texture of the base paint is too strong, and the flatness of a dry film is poor.

Meanwhile, the proportion of the basic paint, the protective glue and the continuous phase in the finished paint also affects the granulation form and particle stability of the basic paint and the water-proof, alkali-proof and washing-resistant capabilities of a dry film to a great extent, in the granulation process, the protective glue has the wrapping performance on the basic paint, prevents pigment fillers and color paste in the basic paint from escaping, ensures the independent form of non-adhesion of granulation color points, and ensures that the main composition in the continuous phase is emulsion, so that the mixture of the basic paint and the protective glue can be effectively wrapped, and the key influence on the water-proof, alkali-proof and washing-resistant performances is also exerted, and when the proportion of the basic paint, the protective glue and the continuous phase exceeds the proper range (comparative example 3), the adverse effect of proportion unbalance is reflected.

The pure acrylic emulsion used in the base paint needs to have proper controllable reactivity with cellulose and protective glue, if the reaction of the emulsion is not controllable (comparative example 4), the interior of a colored point is easy to continuously react and thicken in the long-term storage process of a product, so that particles are hard, the colored point cannot be flattened when being dried, and the final flatness of a paint film is influenced.

At the same time, if the amount of emulsion used in the base paint is outside the claimed range, too little or too much (comparative example 6) will adversely affect the properties of the base paint and thus the pelletizing properties and the final paint film.

The continuous phase emulsion also has core requirements, firstly, the continuous phase emulsion should not react with the protective glue solution for thickening, and simultaneously, the continuous phase emulsion should have good water resistance and stain resistance, and meets the basic requirements of the standard. If the requirement is not met (comparative example 5), the emulsion in the continuous phase and the protective glue solution react continuously after being mixed, the viscosity of a product system is increased continuously, so that the product is gelatinized due to overhigh viscosity after heat storage or long-term storage, and the normal use is influenced.

The selection and the dosage of the pearl powder and the titanium dioxide which determine the product in the base paint directly influence the color-changing decorative effect which can be finally expressed by the product (comparative example 6), most of the pearl powder does not have the color-changing effect, and the matching aesthetic property of the pearl powder and the titanium dioxide does not meet the preset effect requirement.

All documents referred to herein are incorporated by reference into this application as if each were individually incorporated by reference. The citation referred to herein is incorporated by reference in its entirety for all purposes unless otherwise in conflict with the present disclosure's objectives and/or technical solutions. Where a citation is referred to herein, the definition of a reference in the document, including features, terms, nouns, phrases, etc., that is relevant, is also incorporated by reference. In the present invention, when the citation is referred to, the cited examples and preferred embodiments of the related art features are also incorporated by reference into the present application, but the present invention is not limited to the embodiments. It should be understood that where the citation conflicts with the description herein, the application will control or be adapted in accordance with the description herein.

The technical features of the embodiments and examples described above can be combined in any suitable manner, and for the sake of brevity, all possible combinations of the technical features of the embodiments and examples described above are not described, but should be considered within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above examples are only illustrative of several embodiments of the present invention, and should not be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Furthermore, it should be understood that various changes or modifications can be made by those skilled in the art after reading the above teachings of the present invention, and equivalents obtained thereby also fall within the scope of the present invention. It should also be understood that the technical solutions provided by the present invention, which are obtained by logical analysis, reasoning or limited experiments, are within the scope of the present invention as set forth in the appended claims. Therefore, the protection scope of the patent of the invention is subject to the appended claims, and the description can be used for explaining the contents of the claims.

Claims

1. A multicolor paint is characterized by comprising (2-6) parts by weight of base paint, (1-3) parts by weight of base paint, (1-7) parts by weight of first protective glue solution and continuous phase, wherein,

2. The multicolor paint of claim 1, wherein,

the second thickener is an alkali swelling thickener.

3. The multicolor paint of claim 1, wherein,

4. The multicolor paint of claim 1, wherein,

the protective glue is S482 type; and/or

The first bactericide is 1.5M; and/or

the third bactericide is 1.5M type and/or KTL type.

5. The multicolor paint according to claim 1, wherein said base paint further comprises one or both of titanium dioxide and a mildewproof agent; the continuous phase also comprises one or two of an antifreezing agent and a mildew preventive; wherein the content of the first and second substances,

the mildew preventive is 2-n-octyl-4-isothiazoline-3-ketone.

6. The multicolor paint according to claim 5, wherein,

the mildew preventive is WME type.

7. Multicolor paint according to any one of claims 1 to 6, characterized in that,

8. The preparation method of the multicolor paint is characterized by comprising the following preparation steps: the raw material formula of the multicolor paint as claimed in any one of claims 1 to 7, wherein the base paint and the first protective glue solution are mixed and then mixed with the continuous phase to prepare the multicolor paint; wherein the content of the first and second substances,

9. The method of producing a multicolor paint according to claim 8, comprising the steps of: and adding the base paint into the first protective adhesive solution, precutting, cutting and granulating, then adding the continuous phase, and uniformly mixing to obtain the multicolor paint.

10. A method of producing a multicolor paint as claimed in any one of claims 8 to 9, characterized in that,