Art coating with high stain resistance and clear texture and preparation method thereof

Abstract

The invention relates to an art coating with high stain resistance and clear texture and a preparation method thereof, and relates to the technical field of coatings, the art coating with high stain resistance and clear texture comprises the following components by weight: 3.7-28.3 parts of water, 64-80 parts of a premixed solution A, 6.5-13 parts of a premixed solution B, and 1.2-3.3 parts of an auxiliary agent; the premixed solution A comprises a coalescing agent, an emulsion and a pigment filler; the premixed solution B comprises water, bentonite and hollow microspheres. The art coating with high stain resistance and clear texture provided by the invention effectively solves the problems that the existing interior wall coating is difficult to easily erase common living stains such as water color pens, gel pens, tea stains and ink at the same time and has excellent texture.

Description

Technical Field

[0001] The invention relates to the technical field of coatings, and in particular to an artistic coating with high stain resistance and clear texture and a preparation method thereof. Background Art

[0002] With the significant improvement of people's living standards, higher requirements are placed on the aesthetics, functionality and environmental protection of the living environment. In the field of house decoration, paint is one of the key materials, and its performance is directly related to the final decorative effect and living experience. However, traditional latex paint has obvious deficiencies in terms of stain resistance and can only clean general stains. It is often difficult to completely clean the watercolor pens and neutral pen marks drawn by children, as well as common stains such as tea stains and ink in life.

[0003] The market is in urgent need of coatings with high stain resistance, but due to the current inadequate level of research and development technology, conventional Jiantu emulsions have low cross-linking density, resulting in insufficient density of the paint film, making it difficult to meet this demand. In order to improve the density and stain resistance of the paint film, cross-border raw materials are needed to obtain higher cross-linking density and finer particle size. However, when cross-border raw materials are used in combination with conventional Jiantu materials, problems such as color difference, defoaming, and floating color will occur, posing challenges to the stability and decorative effects of the coating. In addition, since the extremely fine emulsion particle size made of cross-border raw materials has an excellent leveling effect, this in turn causes the paint film to easily sag or over-level, thus failing to form an ideal texture effect. This problem reduces people's choice of decorative coatings, making it difficult for interior wall coatings on the market to achieve both high stain resistance and rich texture effects.

[0004] Therefore, in view of the shortcomings of traditional latex paints and existing interior wall coatings in terms of stain resistance and texture effects, it is of great practical significance and application value to develop an artistic coating with high stain resistance and clear texture. Summary of the invention

[0005] In order to solve the above problems, the present invention provides an artistic coating with high stain resistance and clear texture and a preparation method thereof.

[0006] In a first aspect, the present invention provides an artistic coating with high stain resistance and clear texture, wherein the artistic coating with high stain resistance and clear texture comprises the following components in parts by weight: 3.7-28.3 parts of water, 64-80 parts of premixed solution A, 6.5-13 parts of premixed solution B, and 1.2-3.3 parts of an additive;

[0007] The premixed solution A comprises a film-forming aid, an emulsion and pigments and fillers;

[0008] The premix solution B includes water, bentonite and hollow microspheres.

[0009] Furthermore, the artistic paint with high stain resistance and clear texture includes the following components in parts by weight: 16 parts of water, 72 parts of premix solution A, 9.75 parts of premix solution B, and 2.25 parts of additives.

[0010] Furthermore, the premixed solution A is composed of a film-forming aid, a pigment filler and an emulsion in a weight ratio of 1:5:10.

[0011] Furthermore, the film-forming aid is hexadecanol ester with a diester structure; the emulsion is a pure acrylic emulsion with a fine particle size of <100nm; and the pigment filler includes at least one of rutile titanium dioxide, heavy calcium, kaolin, talc, barium sulfate, and mica powder.

[0012] Furthermore, the premix solution B is composed of water, bentonite and hollow microspheres in a weight ratio of 10:1:2.

[0013] Furthermore, the bentonite is hectorite, the hollow microspheres have a D50 of 50-70 um, and a D90 of <90 um.

[0014] Furthermore, the auxiliary agent includes the following components in parts by weight: 0.1-0.3 parts of a surfactant, 0.1-0.3 parts of a dispersant, 0.3-0.7 parts of a defoaming agent, 0.5-1.5 parts of an antifreeze agent, and 0.2-0.5 parts of a preservative and mildew preventer.

[0015] Furthermore, the surfactant is polyoxyethylene ether or its derivatives, the dispersant is acrylic copolymer, the defoaming agent is a mixture of polyether silicone mineral oil, the preservative and mildew preventer are isothiazolinone, formaldehyde and benzylimidazole, and the antifreeze agent is ethylene glycol.

[0016] In a second aspect, the present invention provides a method for preparing the artistic coating with high stain resistance and clear texture as described in any one of the first aspects, the preparation method comprising the following steps:

[0017] Adding water, a dispersant, a surfactant and a defoamer to the premix solution A and stirring and mixing to obtain a first mixed material;

[0018] Adding the premixed solution B to the first mixed material and stirring and mixing to obtain a second mixed material;

[0019] The remaining components of the artistic paint are added to the second mixed material, and the mixture is stirred and mixed to obtain the artistic paint.

[0020] The above technical solution provided by the embodiment of the present invention has at least the following advantages compared with the prior art:

[0021] The embodiment of the present invention provides an artistic paint with high stain resistance and clear texture and a preparation method thereof. The present invention provides an artistic paint with high stain resistance and clear texture, which effectively solves the problem that existing interior wall paints are difficult to easily erase common stains in life such as watercolor pens, neutral pens, tea stains and ink, and have excellent texture. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 A schematic flow chart of a method for preparing an artistic coating with high stain resistance and clear texture provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0027] At present, it is difficult for the interior wall paint on the market to easily remove common stains such as watercolor pen, gel pen, tea stains and ink. The conventional solution is to apply another layer of varnish, but varnish will seriously damage the feel and gloss of the original paint film. In addition, the conventional interior wall paint has poor texture and many air bubbles, which makes it difficult to meet people's growing pursuit of artistic life.

[0028] In view of the above problems, the inventors have found through research that: 1. Conventional Jiantu emulsion has a large particle size and a low cross-linking density, resulting in the paint film being not dense enough, and stains penetrating into the paint film, resulting in low stain resistance.

[0029] 2. Since Jiantu emulsion itself has poor mechanical stability and cannot be added in the front stage, it uses its own high molecular surfactant properties to disperse the powder. Therefore, it is necessary to add more hydrophilic surfactants to disperse and stabilize the pigments and fillers, thereby improving the hydrophilicity of the paint film, making it easier for stains to remain on the paint film.

[0030] 3. Clear texture requires low shear and high, that is, the paint sample has strong thixotropy. However, since more surfactants have been introduced to disperse the powder, and the HASE thickeners that enhance low shear also have more surfactants, in a high viscosity system, the bubbles generated cannot be easily eliminated by simply using a defoamer, thus forming many bubble holes and surfactants, and due to the enhanced hydrophilicity, the stain resistance is significantly reduced, that is, high surfactants will bring about the problems of many bubbles and poor stain resistance. In addition, conventional interior wall paints also use cellulose. During the construction process, cellulose will further introduce bubbles in the air into the paint due to its own characteristics, making it more difficult to eliminate bubbles. Defoaming of textured paints has always been a difficult problem in the industry. Moreover, the thickening method of cellulose plus HASE will make the texture fine and sharp, resulting in unclear and piercing textures.

[0031] 4. When there are more surfactants, adding hydrophobic materials such as silicone can only improve the stain resistance of the paint film. It is difficult to achieve good performance, and the cost increases significantly but the performance improvement is very limited.

[0032] To solve the above problems, the core technical concept of the present invention at least includes:

[0033] 1. By introducing water-based wood emulsion, taking advantage of its smaller particle size and higher cross-linking density than Jiantu emulsion, the paint film formed is denser, thus being able to more effectively block the penetration of stains.

[0034] 2. However, since wood emulsion is used in Jiantu, it has poor compatibility with other materials. For example, in the selection of film-forming aids, Jiantu has high requirements for environmental protection, so it usually uses high-boiling-point film-forming aids that are highly environmentally friendly and do not count VOC, while wood paint uses low-boiling-point DPM and PPH that are not environmentally friendly and count VOC. Jiantu film-forming aids evaporate slowly and its components are more similar to emulsions, which can make the molecules in the emulsion more fully entangled, which will make the paint sample thicker during storage, and even form crusts in the cans. Therefore, this is why no one has used this material across borders for so long. This scheme prepares a controllable "gel" by pretreating the pigment with part of the emulsion and the film-forming aid. On the one hand, the pigment will absorb a part of the film-forming aid due to its own oil absorption, forming a competition with the emulsion, thereby reducing the swelling of the emulsion by the film-forming aid and making it have a more lasting stability; on the other hand, after the latex particles are swollen by the film-forming aid, the latex particles become larger, thereby giving the molecules steric hindrance ability, which has the function of dispersing and stabilizing pigments and fillers, and can further reduce the introduction of surfactants, thereby solving the problem that the emulsion needs to introduce more hydrophilic surfactants to disperse and stabilize pigments and fillers, thereby improving the hydrophobicity of the paint film.

[0035] 3. The above scheme can solve the difficulties of stain resistance and storage, but because the main feature of wood emulsion is excellent leveling, it is still difficult to ensure excellent artistic texture effect by simply using conventional bentonite or one or more of protective glue and alkali swelling. This scheme uses a hollow microsphere, which takes advantage of its excellent suspension and the shaping of bentonite to perfectly solve its leveling problem, and also avoids the difficulty of introducing and defoaming bubbles during the construction process when using cellulose. Hollow microspheres have the function of lightweight materials because of their extreme suspension, that is, they can make the paint film thicker under the same quality. During the roller coating process, combined with bentonite, the paint film is not easy to shrink and level, thereby ensuring the appearance of texture.

[0036] Therefore, a decorative material with high stain resistance and texture artistic effect is finally formed. The specific implementation method includes:

[0037] Step 1: Prepare premixed solution A, mix the film-forming aid, pigment and part of the emulsion together in advance to form a controllable "gel".

[0038] Step 2: Prepare premix solution B, fully pre-dissolve water, bentonite and hollow microspheres to form a stable high thixotropic structure. Then add premix solution A and premix solution B to water and additives.

[0039] Therefore, the present invention aims to provide a highly stain-resistant paint, which solves the problem that existing interior wall paints are difficult to easily remove common stains in daily life, such as watercolor pens, gel pens, tea stains and ink. It also provides an artistic paint with excellent texture effect and its preparation method and application, which solves the problem of high stain resistance and lack of texture.

[0040] The technical solution provided by the present invention is as follows:

[0041] In a first aspect, the present invention provides an artistic coating with high stain resistance and clear texture, wherein the artistic coating with high stain resistance and clear texture comprises the following components in parts by weight: 3.7-28.3 parts of water, 64-80 parts of premixed solution A, 6.5-13 parts of premixed solution B, and 1.2-3.3 parts of additives; the premixed solution A comprises a film-forming additive, an emulsion, and a pigment filler;

[0042] The premix solution B includes water, bentonite and hollow microspheres.

[0043] In some specific embodiments, the artistic paint with high stain resistance and clear texture includes the following components, measured by weight: 16 parts of water, 72 parts of premix solution A, 9.75 parts of premix solution B, and 2.25 parts of additives.

[0044] In some specific embodiments, the premix solution A has the following components: a film-forming aid, an emulsion, and a pigment filler.

[0045] Among them, film-forming aid: pigment filler: emulsion = 1:5:10;

[0046] Wherein, the film-forming aid is hexadecanol ester with a diester structure;

[0047] Wherein, the emulsion is a pure acrylic emulsion with a fine particle size of <100 nm, preferably W-3120 of Badfu;

[0048] Wherein, the pigment filler is rutile titanium dioxide prepared by chlorination method; the filler is one or a combination of two selected from heavy calcium, kaolin, talcum powder, barium sulfate and mica powder.

[0049] In some specific embodiments, the premix solution B has the following components: water: bentonite: hollow microspheres.

[0050] Among them, water: bentonite: hollow microspheres = 10:1:2;

[0051] Wherein, the bentonite is hectorite, preferably Hemmingstone GS;

[0052] Among them, the hollow microspheres have a D50 of 50-70um and a D90 of <90um, and are preferably made from China Steel Corporation's GS25.

[0053] In some specific embodiments, the auxiliary agent includes the following components in parts by weight: 0.1-0.3 parts of surfactant, 0.1-0.3 parts of dispersant, 0.3-0.7 parts of defoaming agent, 0.5-1.5 parts of antifreeze agent and 0.2-0.5 parts of preservative and mildew inhibitor.

[0054] Wherein, the surfactant is polyoxyethylene ether or its derivatives;

[0055] The dispersant is an acrylic acid copolymer;

[0056] The defoamer is a mixture of polyether silicone mineral oil;

[0057] The antiseptic and mildew-proofing agents are isothiazolinones, formaldehyde and benzamidazole;

[0058] The antifreeze agent is ethylene glycol.

[0059] In a second aspect, based on the same inventive concept, the present invention provides a method for preparing an artistic coating having high stain resistance and clear texture as described in any one of the first aspects, such as Figure 1 As shown, the preparation method comprises the following steps:

[0060] Adding water, a dispersant, a surfactant and a defoamer to the premix solution A and stirring and mixing to obtain a first mixed material;

[0061] Adding the premixed solution B to the first mixed material and stirring and mixing to obtain a second mixed material;

[0062] The remaining components of the artistic paint are added to the second mixed material, and the mixture is stirred and mixed to obtain the artistic paint.

[0063] In some specific embodiments, the above preparation method includes the following process:

[0064] Step S1: Preparation of premixed solution A: first add 5 parts of film-forming aid and 25 parts of pigment to 50 parts of emulsion, stir at 1300-1600 rpm for 10-15 minutes to obtain premixed solution A, i.e. "gel A", which is set aside for later use;

[0065] Step S2: Preparation of premixed solution B: first add 1 part of bentonite and 2 parts of hollow microspheres to 10 parts of water, stir at 1300-1600 rpm for 10-15 minutes to obtain premixed solution B, and set aside for later use.

[0066] Step S3: adding 3.7 parts of water, 0.3 parts of dispersant, 0.3 parts of surfactant and 0.7 parts of defoamer to the premixed solution A, and stirring at 500-800 rpm for 5-8 min;

[0067] Step S4: adding premixed solution B and stirring at 500-800 rpm for 3-5 min;

[0068] Step S5: adding 0.5 parts of preservative and mildew preventer and 1.5 parts of antifreeze agent, stirring at 500-800 rpm for 5-10 minutes; the finished product is obtained.

[0069] It should be noted that the component raw materials involved in the artistic coating with high stain resistance and clear texture and the preparation method thereof provided in the embodiments of the present invention, unless otherwise specified or specified, can be directly commercially available products or homemade using existing public preparation methods; at the same time, the steps and parameters involved, unless otherwise specified or specified, can be carried out according to the existing processing technology of artistic coating with high stain resistance and clear texture or directly carried out using existing equipment, and the present invention document will not describe them one by one.

[0070] The present invention will be further described below in conjunction with specific examples. It should be understood that these examples are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The experimental methods in the following examples that do not specify specific conditions are usually measured according to national standards. If there is no corresponding national standard, then the conditions recommended by the manufacturer are followed.

[0071] The detailed information of the main raw materials involved in the following examples and comparative examples are as follows:

[0072] Film-forming aid: specifically hexadecanol ester, purchased from Qilu Eastman Fine Chemical Co., Ltd.;

[0073] Pigments and fillers: specifically, heavy calcium CC-1500, purchased from Jiangxi Guangyuan Sales Co., Ltd.;

[0074] Rutile titanium dioxide SR-237 was purchased from Shandong Dongjia Group Co., Ltd.;

[0075] Kaolin 80L was purchased from Tangshan Madison Kaolin Co., Ltd.

[0076] Talc CMS-666 was purchased from Heshan Chemical (Liaoning) Co., Ltd.

[0077] Barium sulfate YF-1250 was purchased from Guangdong Yufeng Powder Material Co., Ltd.

[0078] Mica powder GB-4 was purchased from Chuzhou Ge Rui Mining Co., Ltd.

[0079] Emulsion: specifically pure acrylic emulsion, purchased from Badfu W-3120;

[0080] Bentonite: specifically hectorite, purchased from Hemmingsdeqian GS;

[0081] Hollow microspheres: purchased from China Steel Corporation GS25;

[0082] Dispersant: specifically P30, purchased from Changshu Gaotai Additive Co., Ltd.;

[0083] Surfactant: specifically PG300, purchased from Guangdong Shunde Changhao Trading Co., Ltd.;

[0084] Defoaming agent: specifically T-4507A, purchased from Guangzhou Dongbo Chemical Co., Ltd.;

[0085] Antifreeze: specifically ethylene glycol, purchased from Dalian Litian Petrochemical Co., Ltd.;

[0086] Antiseptic and antifungal agent: specifically MBS 5050, purchased from Guangzhou Duwei Trading Co., Ltd.

[0087] Example 1

[0088] This example provides an artistic coating with high stain resistance and clear texture. In parts by weight, the artistic coating with high stain resistance and clear texture includes the following components: In parts by weight, the artistic coating with high stain resistance and clear texture includes the following components: 16 parts of water, 72 parts of premixed solution A, 9.75 parts of premixed solution B, and 2.25 parts of additives;

[0089] The premixed solution A is composed of a film-forming aid, a pigment and a filler in a weight ratio of 1:5:10, specifically 45 parts by weight of the emulsion, 4.5 parts by weight of the film-forming aid and 22.5 parts by weight of the pigment;

[0090] The premix solution B is composed of water, bentonite and hollow microspheres in a weight ratio of 10:1:2, specifically 7.5 parts by weight of water, 0.75 parts by weight of bentonite and 1.5 parts by weight of hollow microspheres;

[0091] The auxiliary agent includes the following components in parts by weight: 0.2 parts of surfactant, 0.2 parts of dispersant, 0.5 parts of defoaming agent, 1 part of antifreeze agent and 0.35 parts of antiseptic and mildew inhibitor.

[0092] The preparation method of the above-mentioned artistic coating with high stain resistance and clear texture comprises the following steps:

[0093] Step S1: Preparation of premixed solution A: first add 4.5 parts of film-forming aid and 22.5 parts of pigment to 45 parts of emulsion, stir at 1400 rpm for 12 minutes to obtain premixed solution A, i.e. "gel A", which is set aside for later use;

[0094] Step S2: Preparation of premixed solution B: first add 0.75 parts of bentonite and 1.5 parts of hollow microspheres to 7.5 parts of water, stir at 1400 rpm for 13 minutes to obtain premixed solution B, and set aside for later use.

[0095] Step S3: adding 16 parts of water, 0.2 parts of dispersant, 0.2 parts of surfactant and 0.5 parts of defoamer to the premixed solution A, and stirring at 600 rpm for 6 min;

[0096] Step S4: adding premixed solution B and stirring at 500-800 rpm for 3-5 min;

[0097] Step S5: adding 0.35 parts of preservative and mildew preventer and 1 part of antifreeze agent, stirring at 500-800 rpm for 5-10 minutes; the finished product is obtained.

[0098] Example 2

[0099] This example provides an artistic paint with high stain resistance and clear texture, 28.3 parts of water, 64 parts of premixed solution A, 6.5 parts of premixed solution B, and 1.2 parts of additives;

[0100] The premixed solution A is composed of a film-forming aid, a pigment and a filler in a weight ratio of 1:5:10, specifically 40 parts by weight of the emulsion, 4 parts by weight of the film-forming aid and 20 parts by weight of the pigment;

[0101] The premix solution B is composed of water, bentonite and hollow microspheres in a weight ratio of 10:1:2, specifically 5 parts by weight of water, 0.5 parts by weight of bentonite and 1 part by weight of hollow microspheres;

[0102] The auxiliary agent includes the following components in parts by weight: 0.1 part of a surfactant, 0.1 part of a dispersant, 0.3 part of a defoaming agent, 0.5 part of an antifreeze agent, and 0.2 part of an antiseptic and mildew preventive.

[0103] The preparation method of the above-mentioned artistic coating with high stain resistance and clear texture comprises the following steps:

[0104] Step S1: Preparation of premixed solution A: first add 4 parts of film-forming aid and 20 parts of pigment to 40 parts of emulsion, stir at 1400 rpm for 12 minutes to obtain premixed solution A, i.e. "gel A", which is set aside for later use;

[0105] Step S2: Preparation of premixed solution B: first add 0.5 parts of bentonite and 1 part of hollow microspheres to 5 parts of water, stir at 1400 rpm for 13 minutes to obtain premixed solution B, and set aside for later use.

[0106] Step S3: adding 28.3 parts of water, 0.1 parts of dispersant, 0.1 parts of surfactant and 0.3 parts of defoamer to the premixed solution A, and stirring at 600 rpm for 6 min;

[0107] Step S4: adding premixed solution B and stirring at 500-800 rpm for 3-5 min;

[0108] Step S5: adding 0.2 parts of preservative and mildew preventer and 0.5 parts of antifreeze agent, stirring at 500-800 rpm for 5-10 minutes; the finished product is obtained.

[0109] Example 3

[0110] This example provides an artistic coating with high stain resistance and clear texture. In parts by weight, the artistic coating with high stain resistance and clear texture includes the following components: 3.7 parts of water, 80 parts of premixed solution A, 13 parts of premixed solution B, and 3.3 parts of additives;

[0111] The premixed solution A is composed of a film-forming aid, a pigment and a filler in a weight ratio of 1:5:10, specifically 50 parts by weight of the emulsion, 5 parts by weight of the film-forming aid and 25 parts by weight of the pigment;

[0112] The premix solution B is composed of water, bentonite and hollow microspheres in a weight ratio of 10:1:2, specifically 10 parts by weight of water, 1 part by weight of bentonite and 2 parts by weight of hollow microspheres;

[0113] The auxiliary agent includes the following components in parts by weight: 0.3 parts of surfactant, 0.3 parts of dispersant, 0.7 parts of defoaming agent, 1.5 parts of antifreeze agent and 0.5 parts of preservative and mildew preventive.

[0114] The preparation method of the above-mentioned artistic coating with high stain resistance and clear texture comprises the following steps:

[0115] Step S1: Preparation of premixed solution A: first add 5 parts of film-forming aid and 25 parts of pigment to 50 parts of emulsion, stir at 1400 rpm for 12 minutes to obtain premixed solution A, i.e. "gel A", which is set aside for later use;

[0116] Step S2: Preparation of premixed solution B: first add 1 part of bentonite and 2 parts of hollow microspheres to 10 parts of water, stir at 1400 rpm for 13 minutes to obtain premixed solution B, and set aside for later use.

[0117] Step S3: adding 3.7 parts of water, 0.3 parts of dispersant, 0.3 parts of surfactant and 0.7 parts of defoamer to the premixed solution A, and stirring at 600 rpm for 6 min;

[0118] Step S4: adding premixed solution B and stirring at 500-800 rpm for 3-5 min;

[0119] Step S5: adding 0.5 parts of preservative and mildew preventer and 1.5 parts of antifreeze agent, stirring at 500-800 rpm for 5-10 minutes; the finished product is obtained.

[0120] Comparative Example 1

[0121] This example provides an artistic paint and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 1 is based on Example 1, and no premixed solution A is prepared, that is, step S1 is removed. According to the conventional production process, step S3 is changed to 16 parts of water, 0.2 parts of dispersant, 0.2 parts of surfactant and 0.5 parts of defoaming agent, 22.5 parts of color filler, after stirring at 1300-1600rpm for 10-15min, 45 parts of emulsion and 4.5 parts of film-forming aid are added.

[0122] Comparative Example 2

[0123] This example provides an artistic paint and a preparation method thereof. Compared with Example 1, the only difference is that Comparative Example 2 is based on Example 1, no hollow microspheres are added to the premixed solution B in step S2, and an ASE type thickener (specifically ASE-60, with an amount of 0.7 parts) is used.

[0124] Comparative Example 3

[0125] This example provides an artistic paint and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 3 is based on Example 1, no hollow microspheres are added to the premixed solution B in step S2, and a HASE type thickener (specifically TT615, with an amount of 0.4 parts) is used.

[0126] Comparative Example 4

[0127] This example provides an artistic paint and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 4 is based on Example 1, no hollow microbeads are added to the premixed solution B in step S2, and a cellulose type thickener (specifically HBR250, with an amount of 0.3 parts) is used.

[0128] Comparative Example 5

[0129] This example provides an artistic coating and a preparation method thereof. Compared with Example 1, the only difference is that Comparative Example 5 is based on Example 1, and hollow microspheres are not added to the premixed solution B in step S2, and only bentonite is used.

[0130] Comparative Example 6

[0131] This example provides an artistic coating and a preparation method thereof. Compared with Example 1, the only difference is that Comparative Example 6 is based on Example 1, and only hollow microspheres are added to the premixed solution B in step S2, without bentonite and other thickening systems.

[0132] Comparative Example 7

[0133] This example provides an artistic coating and a preparation method thereof. Compared with Example 1, the only difference is that Example 7 is based on Example 1, and the emulsion selected is Dow's AC-368, a high-end stain-resistant emulsion, and the dispersant is added to 0.5.

[0134] Comparative Example 8

[0135] This example provides an artistic coating and a preparation method thereof. Compared with Example 1, the only difference is that Comparative Example 8 is based on Example 1, and the bentonite in the premixed solution B in step S2 is replaced with sodium ion bentonite (specifically CLAYMINTON HW).

[0136] Comparative Example 9

[0137] This example provides an artistic paint and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 9 is based on Example 1, and the particle size D50 of the hollow microspheres in the premixed solution B in step S2 is changed to 45um, and D90<90um.

[0138] Comparative Example 10

[0139] This example provides an artistic coating and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 10 is based on Example 1, and the particle size D50 of the hollow microspheres in the premixed solution B in step S2 is changed to 70um, and D90<90um.

[0140] Comparative Example 11

[0141] This example provides an artistic coating and a preparation method thereof. Compared with Example 1, the only difference is that Comparative Example 11 is based on Example 1, and the amount of film-forming aid used in step S1 is 3 parts.

[0142] Comparative Example 12

[0143] This example provides an artistic coating and a preparation method thereof. Compared with Example 1, the only difference is that Comparative Example 12 is based on Example 1, and the amount of film-forming aid used in step S1 is 6 parts.

[0144] Test Case

[0145] In this example, the artistic coatings obtained from the above embodiments and comparative examples were subjected to performance tests. The test results of specific embodiment 1 and comparative examples 1 to 9 are shown in Table 1; the test results of embodiment 2 and embodiment 3 are shown in Table 2.

[0146] Table 1

[0147]

[0148]

[0149] Table 2

[0150] project Example 2 Example 3 Low temperature thick coating No abnormality No abnormality Texture Strong texture, clear and rounded lines Strong texture, clear and rounded lines Paint film pores No obvious pores No obvious pores Stain resistant Can be wiped off within 40 hours Can be wiped off within 60 hours store No abnormality No abnormality

[0151] From Table 1, we can see that:

[0152] By comparing Example 1 and Comparative Example 1, it is found that the paint sample obtained in Example 1 has better stain resistance, fineness and storage state than Comparative Example 1 due to the formation of "gel". This is because the formation of "gel" means that, on the one hand, the pigment will absorb a part of the film-forming aid due to its own oil absorption, and compete with the emulsion for adsorption, thereby reducing the swelling of the emulsion by the film-forming aid and making it more stable. On the other hand, after the latex particles are swollen by the film-forming aid, the latex particles become larger, thereby giving the molecular steric hindrance ability, which has the function of dispersing and stabilizing the pigments and fillers, and further reduces the introduction of surfactants, thereby solving the problem that the emulsion needs to introduce more hydrophilic surfactants to disperse and stabilize the pigments and fillers, thereby improving the hydrophobicity of the paint film. Without "gel", the amount of dispersant is not enough to disperse the pigments and fillers, and the film-forming aid will fully cross-link with the emulsion without competitors, making it severely thick after storage and thus agglomerating.

[0153] From Comparative Examples 2 / 3 / 4, it can be seen that without adding hollow microspheres and using other thickening systems, such as HASE / ASE / cellulose, the paint film will not only have poor texture and more pores, but also have a lower stain resistance to varying degrees due to the enhanced hydrophilicity.

[0154] It can be seen from comparative examples 5 / 6 that when only hollow microspheres or bentonite are used, although there is no effect on bubbles and stain resistance, the texture effect is not ideal.

[0155] It can be seen from Comparative Example 7 that, although the texture, pores and storage state can be achieved by using conventional emulsion, its anti-fouling effect is very poor.

[0156] It can be seen from Comparative Example 8 that the use of sodium bentonite will result in insufficient thixotropy due to insufficient gelling ability, thereby deteriorating the texture.

[0157] It can be seen from comparative examples 9 / 10 that using microbeads that are too fine will reduce the grain support, thereby causing the texture to collapse, and using microbeads that are too coarse will make the hand feel rough and the texture large.

[0158] It can be seen from Comparative Examples 11 / 12 that too little film-forming aid will result in a too thick texture, and the paint film will crack when the temperature is low. Too much film-forming aid will cause the excess to cause the latex particles to swell excessively, resulting in storage abnormalities.

[0159] Various embodiments of the present invention may be presented in the form of a range; it should be understood that the description in the form of a range is only for convenience and brevity, and should not be understood as a rigid limitation on the scope of the present invention; therefore, the range description should be considered to have specifically disclosed all possible sub-ranges and single numerical values ​​within the range. For example, the range description from 1 to 6 should be considered to have specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which apply regardless of the range. In addition, whenever a numerical range is indicated herein, it is meant to include any cited number (fractional or integer) within the indicated range.

[0160] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An artistic coating with high stain resistance and clear texture, characterized in that, The artistic paint with high stain resistance and clear texture comprises the following components in parts by weight: 3.7-28.3 parts of water, 64-80 parts of premixed solution A, 6.5-13 parts of premixed solution B, and 1.2-3.3 parts of additives; The premixed solution A comprises a film-forming aid, an emulsion and pigments and fillers; The premix solution B includes water, bentonite and hollow microspheres.

2. The artistic coating with high stain resistance and clear texture according to claim 1, characterized in that: The artistic paint with high stain resistance and clear texture includes the following components in parts by weight: 16 parts of water, 72 parts of premixed solution A, 9.75 parts of premixed solution B, and 2.25 parts of additives.

3. The artistic coating with high stain resistance and clear texture according to claim 1, characterized in that: The premixed solution A is composed of a film-forming aid, a pigment and a filler and an emulsion in a weight ratio of 1:5:

10.

4. The artistic coating with high stain resistance and clear texture according to claim 3, characterized in that: The film-forming aid is hexadecanol ester with a diester structure; the emulsion is a pure acrylic emulsion with a fine particle size of less than 100 nm; the pigment filler includes at least one of rutile titanium dioxide, heavy calcium, kaolin, talc, barium sulfate, and mica powder.

5. The artistic coating with high stain resistance and clear texture according to claim 1, characterized in that: The premix solution B is composed of water, bentonite and hollow microspheres in a weight ratio of 10:1:

2.

6. The artistic paint with high stain resistance and clear texture according to claim 5, characterized in that: The bentonite is hectorite, and the hollow microspheres have a D50 of 50-70 um and a D90 of <90 um.

7. The artistic coating with high stain resistance and clear texture according to claim 1, characterized in that: The auxiliary agent comprises the following components in parts by weight: 0.1-0.3 parts of a surfactant, 0.1-0.3 parts of a dispersant, 0.3-0.7 parts of a defoaming agent, 0.5-1.5 parts of an antifreeze agent and 0.2-0.5 parts of an antiseptic and antifungal agent.

8. The artistic coating with high stain resistance and clear texture according to claim 7, characterized in that: The surfactant is polyoxyethylene ether or its derivatives, the dispersant is acrylic copolymer, the defoamer is a mixture of polyether silicone mineral oil, the preservative and mildew preventer is isothiazolinone, formaldehyde and benzamiazole, and the antifreeze is ethylene glycol.

9. A method for preparing an artistic coating with high stain resistance and clear texture according to any one of claims 1 to 8, characterized in that: The preparation method comprises the following steps: Adding water, a dispersant, a surfactant and a defoaming agent to the premix solution A and stirring and mixing to obtain a first mixed material; Adding the premixed solution B to the first mixed material and stirring and mixing to obtain a second mixed material; The remaining components of the artistic paint are added to the second mixed material, and the mixture is stirred and mixed to obtain the artistic paint.

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