阅读说明：本技术 一种防水油画布的制作方法 (Method for manufacturing waterproof canvas ) 是由 邵进飞 朱小健 于 2021-08-18 设计创作，主要内容包括：本发明公开了一种防水油画布的制作方法,包括以下步骤：S1：基材的选择：油画布由经线和纬线相互交织而成,且经线和纬线均由纤维长丝纤维组成；S2：防水膜的制备：选择聚乙烯膜通过改性处理,得到改性聚乙烯膜；S3：将防水膜复合在油画布的一侧；S4：将油画布另一侧涂敷功能层：功能层由含三聚磷酸铝的耐火剂、水性聚氨酯乳液、聚丙烯酸仲丁酯、硝化纤维、聚对苯二甲酸丁二酯纤维、纳米二氧化硅、助剂、增强剂、增韧剂、聚乙烯醚、防腐剂组成；S5：在功能层一侧依次喷涂吸墨底层、吸墨中层和吸墨表层；S6：喷涂聚乙烯防潮层,干燥后收卷即可。本发明,通过在油画布一侧复合一层防水膜,避免该侧收到水的喷淋而损坏。(The invention discloses a method for manufacturing a waterproof canvas, which comprises the following steps: s1: selection of a substrate: the canvas is formed by interweaving warps and wefts, and the warps and the wefts are both made of fiber filament fibers; s2: preparing a waterproof film: selecting a polyethylene film, and carrying out modification treatment to obtain a modified polyethylene film; s3: compounding a waterproof film on one side of the canvas; s4: coating the other side of the canvas with a functional layer: the functional layer consists of a fire retardant containing aluminum tripolyphosphate, aqueous polyurethane emulsion, secondary butyl polyacrylate, nitrocellulose, polybutylene terephthalate fiber, nano silicon dioxide, an auxiliary agent, a reinforcing agent, a toughening agent, polyvinyl ether and a preservative; s5: spraying an ink absorption bottom layer, an ink absorption middle layer and an ink absorption surface layer on one side of the functional layer in sequence; s6: spraying a polyethylene damp-proof layer, drying and rolling. According to the invention, the waterproof film is compounded on one side of the canvas, so that the side is prevented from being damaged by water sprayed.)

1. A method for manufacturing a waterproof canvas is characterized in that: the method comprises the following steps:

s1: selection of a substrate: the canvas is formed by interweaving warps and wefts, and the warps and the wefts are both made of fiber filament fibers;

s2: preparing a waterproof film: selecting a polyethylene film, and carrying out modification treatment to obtain a modified polyethylene film;

s3: compounding a waterproof film on one side of the canvas;

s4: coating the other side of the canvas with a functional layer: the functional layer consists of a fire retardant containing aluminum tripolyphosphate, aqueous polyurethane emulsion, secondary butyl polyacrylate, nitrocellulose, polybutylene terephthalate fiber, nano silicon dioxide, an auxiliary agent, a reinforcing agent, a toughening agent, polyvinyl ether and a preservative;

s5: spraying an ink absorption bottom layer, an ink absorption middle layer and an ink absorption surface layer on one side of the functional layer in sequence;

s6: spraying a polyethylene damp-proof layer, drying and rolling.

2. The method of claim 1, wherein the canvas comprises: in the step S1, the diameters of the warp and the weft are the same, and the length of the gap formed by the warp and the weft is 20% of the diameter of the warp.

3. The method of claim 1, wherein the canvas comprises: the modification treatment of the polyethylene film is to treat the polyethylene film by a mixed solution consisting of a vinyl silane coupling agent, acrylic resin, sodium hydroxymethylbenzene sulfonate, magnesium hydroxide and deionized water, and then take out and dry the polyethylene film.

4. The method of claim 1, wherein the canvas comprises: the step S3 of compositing the waterproof film is to calender the waterproof film and the canvas of the substrate.

5. The method of claim 1, wherein the canvas comprises: the functional layer in the step S4 is specifically composed of the following materials in parts by weight: 10-15 parts of aluminum tripolyphosphate-containing refractory agent, 1-2 parts of waterborne polyurethane emulsion, 40-60 parts of secondary butyl polyacrylate, 25-40 parts of polybutylene terephthalate fiber, 0.02-0.05 part of nitrocellulose, 2-4 parts of nano silicon dioxide, 1-2 parts of auxiliary agent, 5-20 parts of reinforcing agent, 4-6 parts of toughening agent, 20-30 parts of polyvinyl ether layer and 10-15 parts of preservative.

6. The method of claim 1, wherein the canvas comprises: in the step S5, the ink absorbing bottom layer is composed of water-based acrylic acid and natural stone powder, the ink absorbing middle layer is composed of vinyl acetate, PVA and natural stone powder, and the ink absorbing surface layer is composed of vinyl acetate, PVA, silica and cationic water-based color fixing agent.

Technical Field

The invention relates to the technical field of canvas preparation, in particular to a method for preparing waterproof canvas.

Background

The canvas is made of cloth by coating fire-resistant oil, solvent, water and other permeable primer on a specific cloth substrate. The coated cloth used for indoor and outdoor advertisement, lamp box, etc. after painting is called ink-jet printing canvas. The strong oil painting cloth texture enables your painting works to reach the highest artistic level. The painting method is suitable for painting of artistic wedding photos, personal artistic photos, painting with oil painting texture, copying oil painting, painting paintings of painters, painting of simulation oil painting works and the like, particularly, the preferred material for painting is sprayed at the outlet, and along with the popularization of the oil painting cloth, the requirements on the use performance of the oil painting cloth are further improved.

The existing canvas has poor water resistance, so that the prepared canvas is easy to damage due to the spraying of water.

Disclosure of Invention

The invention aims to provide a method for manufacturing a waterproof canvas, which aims to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a method for manufacturing a waterproof canvas comprises the following steps:

s1: selection of a substrate: the canvas is formed by interweaving warps and wefts, and the warps and the wefts are both made of fiber filament fibers;

s2: preparing a waterproof film: selecting a polyethylene film, and carrying out modification treatment to obtain a modified polyethylene film;

s3: compounding a waterproof film on one side of the canvas;

s4: coating the other side of the canvas with a functional layer: the functional layer consists of a fire retardant containing aluminum tripolyphosphate, aqueous polyurethane emulsion, secondary butyl polyacrylate, nitrocellulose, polybutylene terephthalate fiber, nano silicon dioxide, an auxiliary agent, a reinforcing agent, a toughening agent, polyvinyl ether and a preservative;

s5: spraying an ink absorption bottom layer, an ink absorption middle layer and an ink absorption surface layer on one side of the functional layer in sequence;

s6: spraying a polyethylene damp-proof layer, drying and rolling.

Preferably, in step S1, the diameters of the warp and the weft are the same, and the length of the gap formed by the warp and the weft is 20% of the diameter of the warp.

Preferably, the modification treatment of the polyethylene film is to treat the polyethylene film by a mixed solution consisting of a vinyl silane coupling agent, acrylic resin, sodium hydroxymethylbenzene sulfonate, magnesium hydroxide and deionized water, and then take out and dry the polyethylene film.

Preferably, the waterproof film is compounded in step S3 by calendering the waterproof film and the canvas of the substrate.

Preferably, the functional layer in step S4 is specifically composed of the following materials in parts by weight: 10-15 parts of aluminum tripolyphosphate-containing refractory agent, 1-2 parts of waterborne polyurethane emulsion, 40-60 parts of secondary butyl polyacrylate, 25-40 parts of polybutylene terephthalate fiber, 0.02-0.05 part of nitrocellulose, 2-4 parts of nano silicon dioxide, 1-2 parts of auxiliary agent, 5-20 parts of reinforcing agent, 4-6 parts of toughening agent, 20-30 parts of polyvinyl ether layer and 10-15 parts of preservative.

Preferably, in step S5, the ink-absorbing bottom layer is composed of water-based acrylic acid and natural stone powder, the ink-absorbing middle layer is composed of vinyl acetate, PVA and natural stone powder, and the ink-absorbing surface layer is composed of vinyl acetate, PVA, silica and cationic water-based color fixing agent.

Compared with the prior art, the invention has the beneficial effects that: one side of the canvas is compounded with a layer of waterproof membrane, so that the side is prevented from being damaged due to water spraying; by arranging the functional layer, the functional layer is composed of the aluminum tripolyphosphate-containing fire retardant, the aqueous polyurethane emulsion, the secondary butyl polyacrylate, the nitrocellulose, the polybutylene terephthalate fiber, the nano silicon dioxide, the auxiliary agent, the reinforcing agent, the toughening agent, the polyvinyl ether and the preservative, so that the performances of fire prevention, corrosion prevention, water prevention and the like of the canvas are enhanced, and the drawing of the canvas is not influenced; by arranging the ink absorbing bottom layer, the ink absorbing middle layer and the ink absorbing surface layer, the ink absorbing performance of the canvas is enhanced, and the prepared canvas has better effect when the canvas is returned to the later stage.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a flow chart of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1, in an embodiment of the present invention, a method for manufacturing a waterproof canvas includes the following steps:

s1: selection of a substrate: the canvas is formed by interweaving warps and wefts, and the warps and the wefts are both made of fiber filament fibers;

s2: preparing a waterproof film: selecting a polyethylene film, and carrying out modification treatment to obtain a modified polyethylene film;

s3: compounding a waterproof film on one side of the canvas;

s4: coating the other side of the canvas with a functional layer: the functional layer consists of a fire retardant containing aluminum tripolyphosphate, aqueous polyurethane emulsion, secondary butyl polyacrylate, nitrocellulose, polybutylene terephthalate fiber, nano silicon dioxide, an auxiliary agent, a reinforcing agent, a toughening agent, polyvinyl ether and a preservative;

s5: spraying an ink absorption bottom layer, an ink absorption middle layer and an ink absorption surface layer on one side of the functional layer in sequence;

s6: spraying a polyethylene damp-proof layer, drying and rolling.

Preferably, in step S1, the diameters of the warp and the weft are the same, and the length of the gap formed by the warp and the weft is 20% of the diameter of the warp.

Preferably, the modification treatment of the polyethylene film is to treat the polyethylene film by a mixed solution consisting of a vinyl silane coupling agent, acrylic resin, sodium hydroxymethylbenzene sulfonate, magnesium hydroxide and deionized water, and then take out and dry the polyethylene film.

Preferably, the waterproof film is compounded in step S3 by calendering the waterproof film and the canvas of the substrate.

Preferably, the functional layer in step S4 is specifically composed of the following materials in parts by weight: 10-15 parts of aluminum tripolyphosphate-containing refractory agent, 1-2 parts of waterborne polyurethane emulsion, 40-60 parts of secondary butyl polyacrylate, 25-40 parts of polybutylene terephthalate fiber, 0.02-0.05 part of nitrocellulose, 2-4 parts of nano silicon dioxide, 1-2 parts of auxiliary agent, 5-20 parts of reinforcing agent, 4-6 parts of toughening agent, 20-30 parts of polyvinyl ether layer and 10-15 parts of preservative.

Preferably, in step S5, the ink-absorbing bottom layer is composed of water-based acrylic acid and natural stone powder, the ink-absorbing middle layer is composed of vinyl acetate, PVA and natural stone powder, and the ink-absorbing surface layer is composed of vinyl acetate, PVA, silica and cationic water-based color fixing agent.

The working principle of the invention is as follows: the canvas is formed by interweaving warps and wefts, and the warps and the wefts are both made of fiber filament fibers; selecting a polyethylene film, and carrying out modification treatment to obtain a modified polyethylene film; compounding a waterproof film on one side of the canvas; coating the other side of the canvas with a functional layer: the functional layer consists of a fire retardant containing aluminum tripolyphosphate, aqueous polyurethane emulsion, secondary butyl polyacrylate, nitrocellulose, polybutylene terephthalate fiber, nano silicon dioxide, an auxiliary agent, a reinforcing agent, a toughening agent, polyvinyl ether and a preservative; spraying an ink absorption bottom layer, an ink absorption middle layer and an ink absorption surface layer on one side of the functional layer in sequence; spraying a polyethylene moisture-proof layer, drying and rolling; one side of the canvas is compounded with a layer of waterproof membrane, so that the side is prevented from being damaged due to water spraying; by arranging the functional layer, the functional layer is composed of the aluminum tripolyphosphate-containing fire retardant, the aqueous polyurethane emulsion, the secondary butyl polyacrylate, the nitrocellulose, the polybutylene terephthalate fiber, the nano silicon dioxide, the auxiliary agent, the reinforcing agent, the toughening agent, the polyvinyl ether and the preservative, so that the performances of fire prevention, corrosion prevention, water prevention and the like of the canvas are enhanced, and the drawing of the canvas is not influenced; by arranging the ink absorbing bottom layer, the ink absorbing middle layer and the ink absorbing surface layer, the ink absorbing performance of the canvas is enhanced, and the prepared canvas has better effect when the canvas is returned to the later stage.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.