Non-filler vinyl acetate-ethylene copolymer composite compounding coat art canvas and production technology thereof
Technical field
The present invention relates to a kind of non-filler vinyl acetate-ethylene copolymer composite compounding coat art canvas and production technology thereof, specifically be used for graphics art man drawing, be applicable to oil painting, acrylic painting, gouache, also can be used for decorating, decorateing, belong to the painting supply technical field.
Background technology:
Before the present invention made, in prior art, artist's drawing normally adopted traditional white coating canvas.It mainly is a direct coating white coating material on the substrate cloth.The white coating material adopts polymer emulsion such as polyvinyl alcohol, ethene acetate homopolymers emulsion, the one pack system of styrene-acrylate copolymer emulsion and pure acrylic acid ester copolymer emulsion, bi-component emulsion add a greater number filler such as titanium dioxide, lithopone, talcum powder, calcium carbonate, zinc oxide etc. as the coating matrix and are mixed and made into.Then coating material is coated on and makes art canvas on the primary backing.The defective of the artistic painting canvas of this white coating is that the compactness of coated film is undesirable, usually takes place easily during drawing that the back of the body oozes, oil suction; Because contain more solid powder filler, be full of cracks, the jackknifing of coating takes place easily and peel off; The easy yellowing of white coating.The serviceability of these defective effect products and shelf life.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby provide a kind of high molecular polymer of different performance composite, and do not add filler and make coating material, adopt " sandwich " structure coating rubbing method of painting bottom coating, coating inter coat, coating overlay coating to be coated with into the transparent and almost transparent non-filler coat art canvas of coating, this canvas not only embodies the simple true qualities of primary backing, and serviceability also is much improved;
This canvas is not owing to contain solid powder filler and composite in conjunction with the high molecular polymer of several different performances, the flexibility of its coated film, compactness and mechanical strength are improved greatly, it can produce hardly coating be full of cracks, jackknifing, peel off, oil suction does not take place during drawing and the back of the body oozes, the light resistance of coating not at all easy generation coating flavescence and influence the non-filler vinyl acetate-ethylene copolymer composite compounding coat art canvas and the production technology thereof of product shelf state also be difficult for to take place to change cause slack and undisciplined because of the temperature difference and humidity.
Main solution of the present invention is achieved in that
Non-filler vinyl acetate of the present invention-ethylene copolymer composite compounding coat art canvas primary coat coating material, inter coat coating material, overlay coating coating material, it forms proportioning by weight percentage:
Primary coat coating material of the present invention: get styrene-acrylate copolymer emulsion or the pure acrylic acid ester copolymer emulsion is: 30~50%, vinyl acetate homopolymers emulsion 10~20%, vinyl acetate~ethylene copolymer emulsion are: 20~40%, Sodium Benzoate is: 0.01~0.5%, glycerine is: 0.01~0.5%, emulsifying wax is: 0.01~1%, water is: 10~30%;
Inter coat coating material of the present invention: get styrene-acrylate copolymer emulsion or the pure acrylic acid ester copolymer emulsion is: 20~40%, vinyl acetate homopolymers emulsion is: 10~30%, vinyl acetate-ethylene copolymer emulsion is: 20~40%, Sodium Benzoate is: 0.01~0.5%, glycerine is: 0.01~0.5%, water is: 10~25%;
Overlay coating coating material of the present invention: getting the pure acrylic acid ester copolymer emulsion is: 20~40%, vinyl acetate-ethylene copolymer emulsion is: 20~40%, the soluble polyurethane emulsion is: 15~30%, Sodium Benzoate is: 0.01~0.5%, emulsifying wax is: 0.01~1%, glycerine is: 0.01~0.5%, water is: 10~25%.
The present invention adopts painting bottom coating on primary backing, drying; Be coated with one to three layer inter coat again, again drying; Be coated with one to two layer of overlay coating at last again, dry and be finished product.
The production craft step of non-filler vinyl acetate of the present invention-ethylene copolymer composite compounding coat art canvas is as follows:
1, the end, in, overlay coating coating material preparation:
(1), primary coat layered material: get styrene-acrylate copolymer emulsion or the pure acrylic acid ester copolymer emulsion is: 30~50%, vinyl acetate homopolymers emulsion 10~20%, vinyl acetate~ethylene copolymer emulsion are: 20~40%, Sodium Benzoate is: 0.01~0.5%, glycerine is: 0.01~0.5%, emulsifying wax is: 0.01~1%, water is: 10~30%; Earlier with 75~85 ℃ of water heating, adding emulsifying wax mixes, add styrene-acrylate copolymer emulsion or pure acrylic acid ester copolymer emulsion, vinyl acetate homopolymers emulsion then, vinyl acetate~ethylene copolymer emulsion mixes, add Sodium Benzoate again, glycerine mixes at normal temperatures, and is stand-by;
(2), inter coat coating material: get styrene-acrylate copolymer emulsion or the pure acrylic acid ester copolymer emulsion is: 20~40%, vinyl acetate homopolymers emulsion is: 10~30%, vinyl acetate-ethylene copolymer emulsion is: 20~40%, Sodium Benzoate is: 0.01~0.5%, glycerine is: 0.01~0.5%, water is: 10~25%; Vinyl acetate~ethylene copolymer emulsion, vinyl acetate homopolymers emulsion, styrene-acrylate copolymer emulsion or pure acrylic acid ester copolymer emulsion, Sodium Benzoate, glycerine, water are mixed at normal temperatures, stand-by;
(3), overlay coating coating material: getting the pure acrylic acid ester copolymer emulsion is: 20~40%, vinyl acetate-ethylene copolymer emulsion is: 20~40%, the soluble polyurethane emulsion is: 15~30%, Sodium Benzoate is: 0.01~0.5%, emulsifying wax is: 0.01~1%, glycerine is: 0.01~0.5%, water is: 10~25%.Earlier with 75~85 ℃ of water heating, adding emulsifying wax mixes, add pure acrylic acid ester copolymer emulsion, soluble polyurethane emulsion, vinyl acetate~ethylene copolymer emulsion then and mix, add Sodium Benzoate again, glycerine mixes at normal temperatures, and is stand-by;
2, production technology:
(1), painting bottom coating on primary backing; Coating machine advances cloth speed: 3~15 meters/minute; Each layer coating layer thickness is: 0.01~0.5mm;
(2), enter the dry or circulation heated-air drying processing of drying room behind the priming coat; Bake out temperature is: 65~200 ℃;
(3), be coated with inter coat, one to three layer of inter coat coating after the oven dry; Coating machine advances cloth speed: 3~15 meters/minute; Each layer coating layer thickness is: 0.01~0.5mm;
(4), enter the dry or circulation heated-air drying processing of drying room behind the coating inter coat; Bake out temperature is: 65~200 ℃;
(5) be coated with one to two layer of overlay coating behind the inter coat, coating machine advances cloth speed and is: 3~15 meters/minute; Each layer coating layer thickness is: 0.01~0.5mm;
(6), coating enters the dry or circulation heated-air drying of drying room behind the overlay coating again and handles the back and be finished product.Bake out temperature is: 65~200 ℃.
The cloth that primary backing of the present invention can adopt pure natural animal and plant fiber material (as wool, cotton, flax etc.) to be woven into, the cloth that also can adopt composite fibre materials (as terylene) to be woven into, the also cloth that can adopt blend fibre to be woven into;
The color of primary backing of the present invention can be true qualities, the bleaching, also can dye.Because color coat art canvas may contact human body, should consider the requirement such as environmental protection, safety and sanitation, health of product, so the content that should control the poisonous and harmful substance of all raw and auxiliary materials such as heavy metal, formaldehyde, volatile toxic substance etc. is in allowed band.
Painting bottom coating of the present invention, coating inter coat, coating overlay coating all can adopt spraying or methods such as blade coating or roller coating to carry out coating.
The equipment of blade coating can adopt single scraper gradation coating or multiple tracks coating or the continuous coated equipment of multiple tracks scraper among the present invention.
Mixing of materials was evenly made the stable coating material, the mixer rotating speed during the use homogenizer will be filled a prescription when the present invention prepares burden: 800~1200 rev/mins, mixing time is: 0.5~1.5 hour.
Compared with the prior art the present invention has the following advantages:
The present invention can not only embody the simple true qualities of primary backing, and coating exquisiteness, smooth, even, and serviceability also is much improved; The surface serviceability is good, to the affinity height of drawing pigments such as oil painting, acrylic painting, watercolor, pigment; Coated film densification, oil-tight, and coating surface has excellent water-resistance; Owing to do not contain solid powder filler and composite in conjunction with the high molecular polymer of several different performances, the flexibility of its coated film, compactness and mechanical strength are improved greatly, it can produce hardly coating be full of cracks, jackknifing, peel off, oil suction does not take place during drawing and the back of the body oozes, also be difficult for to take place to change cause slack and undisciplined because of the temperature difference and humidity, the light resistance of coating is good, is not easy to produce the coating flavescence and the shelf state that influences product.
The specific embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
Embodiment one: non-filler vinyl acetate of the present invention-ethylene copolymer composite compounding coat art canvas production craft step is as follows:
1, the end, in, overlay coating coating material preparation:
(1), primary coat layered material: getting styrene-acrylate copolymer emulsion is: 44%, vinyl acetate homopolymers emulsion is: 15%, vinyl acetate~ethylene copolymer emulsion is: 28%, Sodium Benzoate is: 0.15%, glycerine is: 0.10%, emulsifying wax is: 0.20%, water is: 12.55%; Earlier with 75 ℃ of water heating, adding emulsifying wax mixes, add styrene-acrylate copolymer emulsion or pure acrylic acid ester copolymer emulsion, vinyl acetate homopolymers emulsion then, vinyl acetate~ethylene copolymer emulsion mixes, add Sodium Benzoate again, glycerine mixes at normal temperatures, and is stand-by.
(2), inter coat coating material: get styrene-acrylate copolymer emulsion or the pure acrylic acid ester copolymer emulsion is: 36%, vinyl acetate homopolymers emulsion is: 26%, vinyl acetate-ethylene copolymer emulsion is: 25%, glycerine is: 0.2%, Sodium Benzoate is: 0.1%, water is: 12.70%; Vinyl acetate~ethylene copolymer emulsion, vinyl acetate homopolymers emulsion, styrene-acrylate copolymer emulsion, Sodium Benzoate, glycerine, water are mixed at normal temperatures, stand-by.
(3), overlay coating coating material: the pure acrylic acid ester copolymer emulsion is: 30%, vinyl acetate-ethylene copolymer emulsion is: 30%, the soluble polyurethane emulsion is: 25%, Sodium Benzoate is: 0.1%, emulsifying wax is: 0.1%, glycerine is: 0.2%, water is: 14.6%.Earlier with 75~85 ℃ of water heating, adding emulsifying wax mixes, add pure acrylic acid ester copolymer emulsion, soluble polyurethane emulsion, vinyl acetate~ethylene copolymer emulsion then and mix, add Sodium Benzoate again, glycerine mixes at normal temperatures, and is stand-by.
Use homogenizer that material is placed on stirrer for mixing during above-mentioned batching and evenly make the stable coating material, the mixer rotating speed: 800 rev/mins, mixing time is: 1.5 hours.
2, production technology:
Primary backing of the present invention adopts pure natural animal and plant fiber material wool textile to become, and the color of primary backing can be true qualities.Painting bottom coating on primary backing at first; Enter the drying room drying behind the painting bottom coating; Be coated with inter coat after the oven dry, two layers of inter coat coatings; Enter the drying room drying behind the coating inter coat; Be coated with two layers of overlay coating after the inter coat drying; Entering drying room behind the coating overlay coating dry is finished product.Bake out temperature is: 150 ℃.Coating machine advances cloth speed: 6 meters/minute; Each layer thick coating is: 0.01~0.5mm.Painting bottom coating, coating inter coat, coating overlay coating adopt the method for " sandwich " structure coating blade coating to carry out in the embodiment of the invention.Scrape automatic doubler surface glouer and can adopt single scraper gradation coating.
Embodiment two:
The production craft step of non-filler vinyl acetate of the present invention-ethylene copolymer composite compounding coat art canvas is as follows:
1, the end, in, overlay coating coating material preparation:
(1), primary coat layered material: getting styrene-acrylate copolymer emulsion is: 40%, vinyl acetate homopolymers emulsion is: 20%, vinyl acetate~ethylene copolymer emulsion is: 25%, Sodium Benzoate is: 0.1%, glycerine is: 0.2%, emulsifying wax is: 0.15%, water is: 14.55%; Earlier with 75 ℃ of water heating, adding emulsifying wax mixes, add styrene-acrylate copolymer emulsion or pure acrylic acid ester copolymer emulsion, vinyl acetate homopolymers emulsion then, vinyl acetate~ethylene copolymer emulsion mixes, add Sodium Benzoate again, glycerine mixes at normal temperatures, and is stand-by.
(2), inter coat coating material: get styrene-acrylate copolymer emulsion or the pure acrylic acid ester copolymer emulsion is: 24%, vinyl acetate homopolymers emulsion is: 25%, vinyl acetate-ethylene copolymer emulsion is: 35%, glycerine is: 0.15%, Sodium Benzoate is: 0.15%, water is: 15.70%; Vinyl acetate~ethylene copolymer emulsion, vinyl acetate homopolymers emulsion, styrene-acrylate copolymer emulsion, Sodium Benzoate, glycerine, water are mixed at normal temperatures, stand-by.
(3), overlay coating coating material: getting the pure acrylic acid ester copolymer emulsion is: 32%, vinyl acetate-ethylene copolymer emulsion is: 25%, the soluble polyurethane emulsion is: 28%, Sodium Benzoate is: 0.15%, emulsifying wax is: 0.20%, glycerine is: 0.15%, water is: 14.5%.Earlier with 75~85 ℃ of water heating, adding emulsifying wax mixes, add pure acrylic acid ester copolymer emulsion, soluble polyurethane emulsion, vinyl acetate~ethylene copolymer emulsion then and mix, add Sodium Benzoate again, glycerine mixes at normal temperatures, and is stand-by.
Primary backing adopts composite fibre materials (as terylene) to be woven into cloth in the embodiment of the invention, and the color of primary backing can be bleaching.Painting bottom coating, coating inter coat, coating overlay coating adopt the method for blade coating to carry out.Scrape automatic doubler surface glouer and can adopt single scraper gradation coating.Inter coat, overlay coating are coated with two layers respectively.The mixer rotating speed: 1000 rev/mins, mixing time is: 1 hour.Dried adopts the circulation heated-air drying.Bake out temperature is: 185 ℃.Coating machine advances cloth speed: 15 meters/minute; Each layer coating layer thickness is: 0.01~0.5mm.Its production technology adopts the processing step among the embodiment one can produce high-quality canvas equally.
Embodiment three:
The production craft step of embodiment of the invention non-filler vinyl acetate-ethylene copolymer composite compounding coat art canvas is as follows:
1, the end, in, overlay coating coating material preparation:
(1), primary coat layered material: getting styrene-acrylate copolymer emulsion is: 32%, vinyl acetate homopolymers emulsion is: 18%, vinyl acetate~ethylene copolymer emulsion is: 34%, Sodium Benzoate is: 0.20%, glycerine is: 0.15%, emulsifying wax is: 0.25%, water is: 15.4%; Earlier with 75 ℃ of water heating, adding emulsifying wax mixes, add styrene-acrylate copolymer emulsion or pure acrylic acid ester copolymer emulsion, vinyl acetate homopolymers emulsion then, vinyl acetate~ethylene copolymer emulsion mixes, add Sodium Benzoate again, glycerine mixes at normal temperatures, and is stand-by.
(2), inter coat coating material: get styrene-acrylate copolymer emulsion or the pure acrylic acid ester copolymer emulsion is: 28%, vinyl acetate homopolymers emulsion is: 30%, vinyl acetate-ethylene copolymer emulsion is: 30%, glycerine is: 0.10%, Sodium Benzoate is: 0.05%, water is: 11.85%; Vinyl acetate~ethylene copolymer emulsion, vinyl acetate homopolymers emulsion, styrene-acrylate copolymer emulsion, Sodium Benzoate, glycerine, water are mixed at normal temperatures, stand-by.
(3), overlay coating coating material: getting the pure acrylic acid ester copolymer emulsion is: 36%, vinyl acetate-ethylene copolymer emulsion is: 35%, the soluble polyurethane emulsion is: 16%, Sodium Benzoate is: 0.1%, emulsifying wax is: 0.15%, glycerine is: 0.25%, water is: 12.5%.Earlier with 75~85 ℃ of water heating, adding emulsifying wax mixes, add pure acrylic acid ester copolymer emulsion, soluble polyurethane emulsion, vinyl acetate~ethylene copolymer emulsion then and mix, add Sodium Benzoate again, glycerine mixes at normal temperatures, and is stand-by.
Use homogenizer that material is placed on stirrer for mixing when getting above-mentioned batching and evenly make the stable coating material, the mixer rotating speed: 1200 rev/mins, mixing time is: 0.5 hour.
2, production technology:
The cloth that primary backing of the present invention adopts blend fibre to be woven into, the color of primary backing can dye.Two layers of inter coat coatings, coating one deck overlay coating; Dried adopts the drying room drying.Bake out temperature is: 130 ℃.Coating machine advances cloth speed: 3 meters/minute; Each layer coating layer thickness is: 0.01~0.5mm.
Painting bottom coating, coating inter coat, coating overlay coating adopt the method for blade coating to carry out in the embodiment of the invention.Scrape automatic doubler surface glouer and can adopt single scraper gradation coating.Its production technology adopts the processing step among the embodiment one, two can produce high-quality canvas equally.
The raw material that use among the present invention are purchased by market, and the equipment that uses is conventional equipment.