CN106046932B - Temperature change ink and preparation method thereof, temperature change wallpaper and preparation method of wallpaper - Google Patents
Temperature change ink and preparation method thereof, temperature change wallpaper and preparation method of wallpaper Download PDFInfo
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- CN106046932B CN106046932B CN201610377170.0A CN201610377170A CN106046932B CN 106046932 B CN106046932 B CN 106046932B CN 201610377170 A CN201610377170 A CN 201610377170A CN 106046932 B CN106046932 B CN 106046932B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09D11/107—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/50—Sympathetic, colour changing or similar inks
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/18—Paper- or board-based structures for surface covering
- D21H27/20—Flexible structures being applied by the user, e.g. wallpaper
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
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Abstract
The invention relates to the technical field of wallpaper, in particular to temperature-sensitive ink and a preparation method thereof, and the temperature-sensitive wallpaper and a preparation method thereof.
Description
Technical Field
The invention relates to the technical field of wallpaper, and particularly relates to temperature-change ink and a preparation method thereof, and temperature-change wallpaper and a preparation method thereof.
Background
Wallpaper, also called wall cloth or wallpaper, and paint, ceramic tile, etc. become one of the main products for indoor wall decoration.
The wallpaper has the advantages of diversified patterns, good decoration effect and convenient replacement, and can change the interior decoration style at any time by replacing the wallpaper, thereby being deeply favored by people at present. With the improvement of the requirements of people on the indoor decoration style, the characteristics of the wallpaper are continuously changed along with the requirements of people. In order to improve the quality of wallpaper, the moisture resistance of a lot of wallpaper is effectively improved at present, the service life is longer and longer, but people still expect to have more changes of colors or patterns on the premise of not changing the wallpaper, so as to cultivate the life interest of people, therefore, the color-changing wallpaper comes into play. However, the wallpaper on the market at present is directly prepared into a pattern color changing layer through a temperature changing material, and has poor temperature changing effect, poor weather resistance and non-lasting temperature changing effect.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide the temperature-sensitive reversible color-changing ink which is used for a temperature-sensitive reversible color-changing layer of wallpaper, is mutually lined with an ink texture layer, and has good weather resistance and a lasting temperature-sensitive effect.
The invention also aims to provide the temperature-changing wallpaper which is good in weather resistance, good in pattern color development effect, multiple in dynamic change form, long in service time and good in moisture and mildew prevention effects, and can be changed from colorless to colored or from colored to colorless.
The invention also aims to provide a preparation method of the temperature change wallpaper, which has the advantages of simple and convenient process, no pollution to the environment in the preparation process, environmental protection, high efficiency and good quality of the prepared temperature change wallpaper.
The purpose of the invention is realized by the following technical scheme:
the temperature change ink is prepared from the following raw materials in parts by weight:
resin emulsion 100 parts
0.5 to 20 portions of reversible thermochromic pigment
1-10 parts of cross-linking agent
0.1-2 parts of light stabilizer
2-8 parts of dispersant
0.5-5 parts of flatting agent
0.5-5 parts of a defoaming agent.
Further, the temperature change ink is prepared from the following raw materials in parts by weight:
resin emulsion 100 parts
0.5 to 5 portions of reversible thermochromic pigment
1-5 parts of cross-linking agent
0.1 to 1 portion of light stabilizer
2-5 parts of dispersant
0.5-2 parts of flatting agent
0.5-2 parts of a defoaming agent.
Further, the temperature change ink is prepared from the following raw materials in parts by weight:
resin emulsion 100 parts
15-20 parts of reversible thermochromic pigment
6-10 parts of cross-linking agent
1.5-2 parts of light stabilizer
6-8 parts of dispersant
3-5 parts of flatting agent
3-5 parts of a defoaming agent.
The resin emulsion is any one of hydroxyl acrylic resin emulsion, polyurethane resin emulsion or silicone-acrylate resin emulsion. The ink prepared from the resin emulsion has the advantages of good wear resistance, good flexibility, excellent chemical resistance and solvent resistance and good weather resistance.
The reversible thermochromic pigment is microcapsule thermochromic powder. The microencapsulated temperature-sensitive material comprises a microcapsule wall and a core material.
The core material is a triarylmethane phthalide compound or a fluorane compound; preferably, crystal violet lactone CVL is used, the crystal violet lactone reversible thermochromic compound belongs to a hydrophobic lipophilic substance, and when the material is taken as a core material, the microcapsule wall material is required to be as follows: (1) the light transmittance is good, the light absorption rate is low, and the refractive index is low, so that the influence on the thermochromic sensitivity and the vividness can be prevented; (2) the wall material can resist the influence of solvents and acid-base and is difficult to dissolve; (3) the sealing performance is good, and the contact with external foreign matters can be isolated; (4) has certain mechanical processing strength, and ensures the integrity of the microcapsule during application.
The microcapsule wall may be selected from any one of gelatin, gum, acacia, wax, agar, agarose, maltodextrin, fats, shellac, hydroxyethyl starch, hydroxyethyl cellulose, hydroxypropyl cellulose, epoxy resin, synthetic rubber, polystyrene, polybutadiene, polyisoprene, polyvinyl alcohol, polyethylene glycol, polypropylene glycol, polyacrylamide, and polymethyl methacrylate.
The four materials of polyethylene glycol, polypropylene glycol, polyacrylamide and polymethyl methacrylate are preferably used as the microcapsule wall. By adopting the wall material and microencapsulating and wrapping the core material, after microencapsulation, the chemical stability and the thermal stability of the core material can be improved, the core material is prevented from being contacted with strong acid and is not easily polluted by other substances outside the capsule, and the liquid compound in a high-temperature state is modified into solid microcapsule powder, so that the quality loss of the organic reversible thermochromic material is avoided, the practicability of the thermochromic material is greatly improved, and the application range of the thermochromic material is expanded.
The cross-linking agent is polyisocyanate cross-linking agent or nitryl cross-linking agent, the polyisocyanate cross-linking agent has quick drying, high film hardness, low raw material cost and good miscibility with benzene solvent, and can be directly mixed with part of alkyd resin and hydroxy acrylic resin for use. In addition, when the temperature is lower in winter, the curing agent can directly replace a general curing agent. The invention utilizes the polyisocyanate curing agent with light color, good miscibility with benzene solvents, low cost of raw materials and more balanced performances of a paint film; the invention uses polyisocyanate crosslinking as an adhesion promoter and a crosslinking agent to improve the adhesion strength, water resistance, wear resistance, scrub resistance, scratch resistance and chemical resistance of the coating. The solid content of the selected polyisocyanate crosslinking agent is 100%, the effective NCO content is 16-18%, and the viscosity (25 ℃) is 20000 +/-5000.
The N-propyl-acrylate cross-linking agent can improve the water resistance, the anti-sticking property and the high temperature resistance of the coating, improve the cross-linking effect of the ink and the emulsion, mainly improve the stability of the microcapsule temperature change powder and the emulsion, and improve the weather resistance of the ink.
The light stabilizer is 1-hydroxybenzotriazole, is added into the formula of the ink, forms a stable temperature-sensitive color-changing system with microcapsule temperature-changing powder, greatly improves the weather resistance, and can improve the effect of temperature-changing color-changing.
The temperature-variable ink for wallpaper is added with the light stabilizer, so that the ink has the functions of shielding or absorbing energy of ultraviolet rays, quenching singlet oxygen, decomposing hydroperoxide into inactive substances and the like, and the possibility of photochemical reaction can be eliminated or slowed down and the process of photoaging can be prevented or delayed under the radiation of light by the high molecular polymer, thereby achieving the purpose of prolonging the service life of the high molecular polymer product and further prolonging the service life of the temperature-variable wallpaper.
The leveling agent is organic siloxane, and the temperature-change ink added into the wallpaper has the advantages of improving the leveling property, reducing shrinkage cavity, and endowing the ink with flexibility, good adhesive force, glossiness, gloss retention and the like.
The dispersing agent is any one of sodium acrylate, propionamide copolymer and sodium polyacrylate, the pH value of the dispersing agent is 7-8, and the solid content is (40 +/-2)%. The density is 1.15 to 1.25g/cm 3 。
The substrate layer is made of non-woven paper, coated paper or fabric (PVC or water-based resin coating), cotton and linen chemical fiber fabric and the like.
The oil content of the defoaming agent is 15-40%, the pH value is 6-8, and the emulsion stability is 3000r/min and is not less than 15 min. The interlayer adhesion is improved, the arrangement of the temperature-sensitive material is improved, and the defoaming agent is preferably any one of emulsified silicone oil, a high-carbon alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether and polyoxypropylene.
The emulsified silicone oil features small surface tension, high surface activity, strong defoaming power, less consumption and low cost. It is immiscible with water and most organic substances, and can defoam most bubble media. It has better thermal stability and can be used in a wide temperature range of 5-150 ℃; the chemical stability is good, the reaction with other substances is difficult, and the product can be used in acid, alkali and salt solutions as long as the preparation is proper, so that the product quality is not damaged; it also has physiological inertia, is usually used in food and medicine industries, and has the functions of inhibiting and breaking bubbles for all bubble systems.
The preparation method of the temperature-change ink for wallpaper comprises the following steps: the reversible temperature-sensitive color-changing pigment and the resin emulsion are uniformly mixed according to the proportion, then the cross-linking agent is added, the mixture is stirred for 10-20min at the constant temperature of 15-40 ℃, and then the rest components are added and stirred for 5-15 min.
The temperature-sensitive reversible color-changing layer is made of ink, and the temperature-sensitive reversible color-changing ink is used for the wallpaper.
According to the wallpaper and the preparation method thereof, the substrate layer, the compact treatment layer, the ink texture layer, the temperature-sensitive reversible color-changing layer and the transparent resin layer are sequentially arranged, so that the weather resistance of the wallpaper is improved, and the service life of the wallpaper is prolonged.
The compact treatment layer is an acrylic resin layer or a polyurethane resin layer, the used compact treatment coating agent is prepared by mixing acrylic resin or polyurethane resin with water or alcohols, the acrylic resin or polyurethane resin is coated on the base material layer to form a gloss oil base coating, the surface of the base material layer is wetted by the compact treatment layer, and micropores and gaps on the surface of the base material layer are filled to ensure the smoothness of the surface of the base material layer. Reduce the surface tension of the base layer and improve the adhesion and color development of the ink texture layer.
The thickness of the compact treatment layer is 0.005-0.02 mm. The thickness of the dense layer has great influence on the compactness and wettability of the base material layer, so the thickness needs to be ensured within a certain range, and the preferred thickness is 0.01-0.015, the effect is good, and the cost is low.
The ink texture layer is a water-based ink layer, the thickness of the ink texture layer is 0.002-0.4mm, the ink texture layer with the texture effect is obtained by printing the surface of the compact processing layer by using a water-based ink formula commonly used in the field, the texture effect is embodied by combining the thickness of the ink layer with a single-color or multi-color pattern of the ink layer, the pattern effect of wallpaper is displayed by the ink texture layer, the requirements of a color reflecting liner and a substrate can also be met, and a highlight or matte ground color can be obtained by using the ink texture layer. The thickness of the ink texture layer is a main layer for displaying patterns of the pattern, so the thickness can be set and selected according to the change requirement of the pattern, if the thickness of the ink texture layer is too low, the thickness and compactness of the pattern are lower, if the thickness of the ink texture layer is too high, the flexibility of the pattern is reduced, the thickness is too strong, and the cost of the material is also increased, preferably, the thickness of the ink texture layer is 0.01-0.2 mm.
The temperature-sensitive reversible color-changing layer is a temperature-changing ink layer formed by coating temperature-changing ink, and the thickness of the temperature-sensitive reversible color-changing layer is 0.02-0.5 mm. The temperature-variable ink is prepared by adding a conventional auxiliary agent into a resin material and a temperature-variable pigment, and then printing the temperature-variable ink on the surface of the ink texture layer to form an integral wallpaper color-developing pattern together with the pattern on the ink texture layer, wherein the ink on the temperature-sensitive reversible color-variable layer can change according to the indoor temperature change. The temperature-sensitive reversible color-changing layer contains microencapsulated temperature-sensitive materials, so that the thickness of the temperature-sensitive reversible color-changing layer is relatively large, preferably 0.1-0.4mm, and the temperature-changing effect of the temperature-sensitive reversible color-changing layer is fully exerted.
The transparent resin layer is composed of transparent resin gloss oil prepared by mixing aqueous fluorocarbon resin emulsion and an anti-reflection optical auxiliary agent, and the thickness of the transparent resin layer is 0.01-0.05 mm. The thickness of the transparent resin layer is 0.01-0.05 mm. The fluorocarbon resin emulsion has excellent weather resistance, water resistance, stain resistance and chemical resistance, has no pollution to the environment and is harmless to the human health.
The anti-reflection optical additive is one or a mixture of more of silicon dioxide, zinc oxide and magnesium fluoride.
The anti-reflection optical additive accounts for 1-10% of the weight of the aqueous fluorocarbon resin emulsion, the prepared transparent resin layer has low reflectivity and high light transmittance, the color brilliance of patterns is improved, and meanwhile, the anti-reflection optical additive has excellent effects on enhancing the weather resistance of wallpaper, and the performances of moisture prevention, mildew prevention and the like.
The transparent resin layer plays a role in mildew resistance and moisture resistance, has high light transmittance and low reflectivity, and has good wallpaper pattern and color rendering effects, so that the weather resistance of the wallpaper is greatly improved, and the service life of the wallpaper is greatly prolonged.
A preparation method of temperature-change wallpaper comprises the following preparation steps:
1) uniformly coating or printing a dense treatment layer coating agent on the surface of the base material layer, wherein the dense treatment layer coating agent is prepared by mixing acrylic acid or polyurethane resin with water or alcohols, drying and cooling after coating or printing the dense agent to form a dense treatment layer, and the coating weight is 20-120g/m 2 The coating temperature is 60-150 ℃. The compact treatment layer coating agent can improve the film forming property of the aqueous main agent and increase the cohesive strength of the film layer.
2) And printing an ink texture layer on the surface of the densified layer, wherein the ink texture layer comprises a single-color or multi-color pattern.
3) After the texture layer of the ink is dried, partially overprinting a temperature-sensitive reversible color changing layer on the surface of the texture layer, arranging one or more temperature-sensitive reversible color changing layers according to the arrangement of patterns and color changing rules, drying and cooling, wherein the printing speed is 10-120m/min, and the drying temperature is 80-200 ℃.
4) The surface of the temperature-sensitive reversible discoloring layer is covered with a transparent resin layer, and the light transmittance of the transparent resin layer is more than 95.3 percent.
The invention has the beneficial effects that: the temperature-sensitive ink disclosed by the invention is good in weather resistance, high in temperature-sensitive sensitivity and good in color development effect.
The invention has another beneficial effects that: the invention ensures the smoothness of the surface of the base material layer by arranging the base material layer, the compact processing layer, the ink texture layer, the temperature-sensitive reversible color-changing layer and the transparent resin layer in sequence, then prints the ink texture layer on the surface of the compact processing layer, prints a multicolor or monochromatic pattern layer by using common ink on the ink texture layer, displays the pattern effect of wallpaper by using the ink texture layer, can also play the requirements of color reflecting lining and substrate, can obtain highlight or matte ground color by using the ink texture layer, is matched with the temperature-sensitive reversible color-changing layer to obtain the wallpaper effect of color or pattern change according to the change of environmental temperature, finally adds the transparent resin layer on the surface of the temperature-sensitive reversible color-changing layer to play the roles of mildew resistance and moisture resistance, has high light transmittance and low reflectivity, the wallpaper has good patterns and color development effect, improves the weather resistance of the wallpaper, and prolongs the service life of the wallpaper.
The invention has another beneficial effects that: the preparation method of the temperature-variable wallpaper is simple in preparation process, capable of adopting various printing modes and wide in application range.
Drawings
Fig. 1 is a schematic structural diagram of the temperature change wallpaper with good weather resistance.
The reference signs are: 1-substrate layer 2-densified layer 3-ink texture layer
4-temperature sensitive reversible color changing layer 5-transparent resin layer.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and fig. 1, which are not intended to limit the present invention.
Example 1
The temperature change ink is prepared from the following raw materials in parts by weight:
resin emulsion 100 parts
20 parts of reversible thermochromic pigment
10 portions of cross-linking agent
Light stabilizer 2 parts
8 portions of dispersant
5 parts of flatting agent
5 parts of a defoaming agent.
The resin emulsion is polyurethane resin emulsion.
The cross-linking agent is a nitrogen propylene cross-linking agent.
The light stabilizer is 1-hydroxybenzotriazole.
The leveling agent is organic siloxane.
The dispersing agent is a sodium acrylate solution, the pH value of the dispersing agent is 7, and the solid content is 40%. The density was 1.15g/cm 3 。
The defoaming agent is polyoxyethylene polyoxypropylene ether, the oil content of the defoaming agent is 15%, the pH value of the defoaming agent is 6, and the emulsion stability is 3000r/min and is not less than 15 min.
The preparation method of the temperature-change ink for wallpaper comprises the following steps: the reversible thermochromic pigment and the resin emulsion are uniformly mixed according to the proportion, then the cross-linking agent is added, the mixture is stirred for 20min at the constant temperature of 40 ℃, and then the rest components are added and stirred for 15 min.
Example 2
The temperature change ink is prepared from the following raw materials in parts by weight:
100 portions of hydroxyl acrylic resin emulsion
0.5 portion of reversible thermochromic pigment
Crosslinking agent 1 part
Light stabilizer 0.1 part
Dispersant 2 parts
0.5 part of flatting agent
0.5 part of defoaming agent.
The cross-linking agent is a polyisocyanate cross-linking agent.
The light stabilizer is 1-hydroxybenzotriazole.
The leveling agent is organic siloxane.
The dispersing agent is a propionamide copolymer solution, the pH value of the dispersing agent is 8, and the solid content is 42%. The density was 1.25g/cm 3 。
The defoaming agent is emulsified silicone oil, the oil content of the defoaming agent is 15%, the pH value is 8, and the emulsion stability is 3000r/min and is not less than 15 min.
The preparation method of the temperature-change ink for wallpaper comprises the following steps: the reversible thermochromic pigment and the resin emulsion are uniformly mixed according to the proportion, then the cross-linking agent is added, the mixture is stirred for 10min at the constant temperature of 15 ℃, and then the rest components are added and stirred for 5 min.
Example 3
The temperature change ink is prepared from the following raw materials in parts by weight:
resin emulsion 100 parts
10 parts of reversible thermochromic pigment
5 portions of cross-linking agent
Light stabilizer 1 part
5 portions of dispersant
Leveling agent 2 parts
And 2 parts of a defoaming agent.
The resin emulsion is silicone acrylic resin emulsion.
The cross-linking agent is a nitrogen propylene cross-linking agent.
The light stabilizer is 1-hydroxybenzotriazole.
The leveling agent is organic siloxane.
The dispersing agent is a sodium polyacrylate solution, the pH value of the dispersing agent is 7, and the solid content is 41%. The density was 1.15g/cm 3 。
The defoaming agent is polyoxyethylene polyoxypropylene ether, the oil content of the defoaming agent is 30%, the pH value of the defoaming agent is 7, and the emulsion stability is 3000r/min and is not less than 15 min.
The preparation method of the temperature-change ink for wallpaper comprises the following steps: the reversible thermochromic pigment and the resin emulsion are uniformly mixed according to the proportion, then the cross-linking agent is added, the mixture is stirred for 15min at the constant temperature of 25 ℃, and then the rest components are added and stirred for 10 min.
Example 4
The temperature change ink is prepared from the following raw materials in parts by weight:
resin emulsion 100 parts
5 parts of reversible thermochromic pigment
3 portions of cross-linking agent
Light stabilizer 1.5 parts
4 portions of dispersant
Leveling agent 1 part
And 1 part of a defoaming agent.
The resin emulsion is hydroxyl acrylic resin emulsion.
The reversible thermochromic pigment is microcapsule thermochromic powder.
The cross-linking agent is a polyisocyanate cross-linking agent.
The light stabilizer is 1-hydroxybenzotriazole.
The leveling agent is organic siloxane.
The dispersing agent is a sodium acrylate solution, the pH value of the dispersing agent is 88, and the solid content is 39%. The density was 1.2g/cm 3 。
The defoaming agent is polyoxyethylene polyoxypropylene ether, the oil content of the defoaming agent is 20%, the pH value of the defoaming agent is 6-8, and the emulsion stability is 3000r/min and is not less than 15 min.
The preparation method of the temperature-change ink for wallpaper comprises the following steps: the reversible thermochromic pigment and the resin emulsion are uniformly mixed according to the proportion, then the cross-linking agent is added, the mixture is stirred for 12min at the constant temperature of 30 ℃, and then the rest components are added and stirred for 8 min.
Example 5
Referring to fig. 1, the temperature-sensitive wallpaper comprises a substrate layer 1, a densification treatment layer 2, an ink texture layer 3, a temperature-sensitive reversible color-changing layer 4 and a transparent resin layer 5 which are sequentially stacked.
According to the wallpaper, the substrate layer 1, the compact treatment layer 2, the ink texture layer 3, the temperature-sensitive reversible color-changing layer 4 and the transparent resin layer 5 are sequentially arranged, so that the weather resistance of the wallpaper is improved, and the service life of the wallpaper is prolonged.
The densification treatment layer 2 is an acrylic resin layer or a polyurethane resin layer, the surface of the substrate layer 1 is wetted by the densification treatment layer 2, and micropores and gaps on the surface of the substrate layer 1 are filled, so that the smoothness of the surface of the substrate layer 1 is ensured. The surface tension of the base layer is reduced, and the adhesion and color development of the ink texture layer 3 are improved.
The thickness of the dense treatment layer 2 is 0.005-0.02 mm. The thickness of the dense layer has a great influence on the compactness and wettability of the base material layer 1, so that the thickness needs to be ensured within a certain range, and the preferred thickness is 0.01-0.015, so that the effect is good and the cost is low.
The ink texture layer 3 is a water-based ink layer, the thickness of the ink texture layer 3 is 0.002-0.4mm, the ink texture layer 3 is printed on the surface of the compact processing layer 2, the ink texture layer 3 is used for displaying the pattern effect of wallpaper, the requirements of color reflection and substrate can be met, and the ink texture layer 3 can be used for obtaining highlight or matte ground color. The thickness of the ink texture layer 3 is a main layer for displaying patterns of the patterns, so the thickness can be set and selected according to the change requirements of the patterns, if the thickness of the ink texture layer 3 is too low, the heaviness and compactness of the patterns are lower, if the thickness of the ink texture layer 3 is too high, the flexibility of the patterns is reduced, the heaviness is too strong, the material cost is also increased, and the thickness of the ink texture layer 3 is preferably 0.01-0.2 mm.
The temperature-sensitive reversible color-changing layer 4 is a temperature-changing ink layer formed by coating temperature-changing ink, and the thickness of the temperature-sensitive reversible color-changing layer 4 is 0.02-0.5 mm. The temperature-variable ink is prepared by adding a conventional auxiliary agent into a resin material and a temperature-variable pigment, and then is printed on the surface of the ink texture layer 3 to form an integral wallpaper color-developing pattern together with the pattern on the ink texture layer 3, and the ink on the temperature-sensitive reversible color-changing layer 4 can change according to the indoor temperature change. The temperature-sensitive reversible color-changing layer 4 contains microencapsulated temperature-sensitive materials, so that the thickness of the temperature-sensitive reversible color-changing layer 4 is relatively large, preferably 0.1-0.4mm, and the temperature-changing effect of the temperature-sensitive reversible color-changing layer 4 is fully exerted.
The transparent resin layer 5 is a water-based fluorocarbon emulsion resin layer, the transparent resin layer is composed of transparent resin gloss oil prepared by mixing water-based fluorocarbon resin emulsion and an anti-reflection optical additive, and the anti-reflection optical additive can be silicon dioxide or zinc oxide or magnesium fluoride. The anti-reflection optical additive accounts for 1% -10% of the usage amount of the aqueous fluorocarbon resin emulsion, and preferably accounts for 1% -5% of the usage amount of the aqueous fluorocarbon resin emulsion. More preferably, the anti-reflection optical additive accounts for 5% of the usage amount of the aqueous fluorocarbon resin emulsion.
The thickness of the transparent resin layer 5 is 0.01-0.05 mm. The thickness of the transparent resin layer 5 is 0.01-0.05 mm. And finally, the transparent resin layer 5 is added on the surface of the temperature-sensitive reversible color-changing layer 4, so that the effects of mould prevention and moisture prevention are achieved, the light transmittance is high, the reflectivity is low, the wallpaper pattern and the color development effect are good, the weather resistance of the wallpaper is greatly improved, and the service life is greatly prolonged.
The anti-reflection optical additive can be silicon dioxide, zinc oxide or magnesium fluoride, and can also be a combination of the above raw materials according to light transmittance.
The anti-reflection optical additive accounts for 1 to 10 percent of the using amount of the aqueous fluorocarbon resin emulsion,
example 6
A preparation method of temperature-change wallpaper comprises the following preparation steps:
1) uniformly coating or printing a dense treatment layer coating agent on the surface of the substrate layer 1, wherein the dense treatment layer coating agent is prepared by mixing acrylic acid or polyurethane resin with water or alcohols, drying and cooling after coating or printing the dense agent to form a dense treatment layer 2, and the coating weight is 80g/m 2 The coating temperature was 100 ℃. The compact treatment layer coating agent can improve the film forming property of the aqueous main agent and increase the cohesive strength of the film layer.
2) And printing an ink texture layer 3 on the surface of the densified layer 2, wherein the ink texture layer 3 comprises a single-color or multi-color pattern.
3) After the ink texture layer 3 is dried, partially overprinting the temperature-sensitive reversible color changing layer 4 on the surface of the ink texture layer, arranging one or more layers of temperature-sensitive reversible color changing layers 4 according to the arrangement of patterns and color changing rules, and cooling after drying, wherein the printing speed is 70m/min, and the drying temperature is 120 ℃.
4) The surface of the temperature-sensitive reversible discoloring layer 3 is covered with a transparent resin layer 4, and the light transmittance of the transparent resin layer 4 is more than 95.3 percent.
Example 7
A preparation method of temperature-change wallpaper comprises the following preparation steps:
1) uniformly coating or printing on the surface of the substrate layer 1Brushing a dense treatment layer coating agent, wherein the dense treatment layer coating agent is prepared by mixing acrylic acid or polyurethane resin with water or alcohol, coating or printing the dense agent, drying and cooling to form a dense treatment layer 2, and the coating weight is 120g/m 2 The coating temperature was 150 ℃. The compact treatment layer coating agent can improve the film forming property of the aqueous main agent and increase the cohesive strength of the film layer.
2) And printing an ink texture layer 3 on the surface of the densification treatment layer 2, wherein the ink texture layer 3 comprises a single-color or multi-color pattern.
3) After the ink texture layer 3 is dried, partially overprinting the temperature-sensitive reversible color changing layer 4 on the surface of the ink texture layer, arranging one or more layers of the temperature-sensitive reversible color changing layer 4 according to the arrangement of patterns and color changing rules, and cooling after drying, wherein the printing speed is 120m/min, and the drying temperature is 200 ℃.
4) The surface of the temperature-sensitive reversible discoloring layer 3 is covered with a transparent resin layer 4, and the light transmittance of the transparent resin layer 4 is more than 95.3 percent.
Example 8
A preparation method of temperature-change wallpaper comprises the following preparation steps:
1) uniformly coating or printing a dense treatment layer coating agent on the surface of the substrate layer 1, wherein the dense treatment layer coating agent is prepared by mixing acrylic acid or polyurethane resin with water or alcohols, drying and cooling after coating or printing the dense agent to form a dense treatment layer 2, and the coating weight is 20g/m 2 The coating temperature was 60 ℃. The compact treatment layer coating agent can improve the film forming property of the aqueous main agent and increase the cohesive strength of the film layer.
2) And printing an ink texture layer 3 on the surface of the densification treatment layer 2, wherein the ink texture layer 3 comprises a single-color or multi-color pattern.
3) After the ink texture layer 3 is dried, partially overprinting the temperature-sensitive reversible color changing layer 4 on the surface of the ink texture layer, arranging one or more layers of temperature-sensitive reversible color changing layers 4 according to the arrangement of patterns and color changing rules, and cooling after drying, wherein the printing speed is 10m/min, and the drying temperature is 80 ℃.
4) The surface of the temperature-sensitive reversible discoloring layer 3 is covered with a transparent resin layer 4, and the light transmittance of the transparent resin layer 4 is more than 95.3 percent.
The weather resistance test is carried out on the temperature change wallpaper prepared by the invention and the temperature change wallpapers produced by 5 other manufacturers randomly purchased in the market, according to the standard QB/T4034-2010 standard, the fading requirement of the temperature change wallpaper prepared by the invention is more than 4 grade, and the fading property of the temperature change wallpapers purchased in other markets is less than 3 grade. Therefore, the temperature change ink and the temperature change wallpaper disclosed by the invention have good weather resistance.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.
Claims (7)
1. A wall paper becomes to temperature which characterized in that: the printing ink comprises a substrate layer, a compact treatment layer, an ink texture layer, a temperature-sensitive reversible color-changing layer and a transparent resin layer which are sequentially stacked;
the transparent resin layer adopts transparent resin gloss oil, and the transparent resin gloss oil contains aqueous fluorocarbon resin emulsion and an anti-reflection optical auxiliary agent;
the temperature-sensitive reversible color changing layer is formed by coating temperature-sensitive ink, and the temperature-sensitive reversible color changing layer is prepared from the following raw materials in parts by weight:
resin emulsion 100 parts
0.5-20 parts of reversible thermochromic pigment
1-10 parts of cross-linking agent
0.1-2 parts of light stabilizer
2-8 parts of dispersant
0.5-5 parts of flatting agent
0.5-5 parts of a defoaming agent;
the resin emulsion is any one of hydroxyl acrylic resin emulsion, polyurethane resin emulsion or silicone-acrylate resin emulsion;
the cross-linking agent is polyisocyanate cross-linking agent or aziridine cross-linking agent; the light stabilizer is 1-hydroxybenzotriazole; the leveling agent is an organic siloxane leveling agent; the dispersing agent is any one of a sodium acrylate solution, a propionamide copolymer solution and a sodium polyacrylate solution, the pH value of the dispersing agent is 7-8, the solid content is (40 +/-2)%, and the density is 1.15-1.25 g/cm 3 。
2. The wallpaper according to claim 1, wherein the wallpaper comprises: the reversible thermochromic pigment is microcapsule thermochromic powder.
3. The wallpaper according to claim 1, wherein the wallpaper comprises: the oil content of the defoaming agent is 15-40%, the pH value is 6-8, and the emulsion stability is 3000r/min and is not less than 15 min.
4. The wallpaper according to claim 1, wherein the wallpaper comprises: the preparation method of the temperature-change ink comprises the following steps: the reversible temperature-sensitive color-changing pigment and the resin emulsion are uniformly mixed according to the proportion, then the cross-linking agent is added, the mixture is stirred for 10-20min at the constant temperature of 15-40 ℃, and then the rest components are added and stirred for 5-15 min.
5. The wallpaper according to claim 1, wherein the wallpaper comprises: the transparent resin layer is made of transparent resin gloss oil, and the transparent resin gloss oil contains aqueous fluorocarbon resin emulsion and an anti-reflection optical auxiliary agent.
6. The wallpaper according to claim 1, wherein the wallpaper comprises: the anti-reflection optical auxiliary agent is one or a mixture of silicon dioxide, zinc oxide and magnesium fluoride.
7. The method for preparing the temperature-variable wallpaper according to any one of claims 1-6, characterized in that: the preparation method comprises the following preparation steps:
1) uniformly coating or printing a compact treatment layer on the surface of the substrate layer, wherein the coating of the compact treatment layer is prepared by mixing acrylic or polyurethane resin with water or alcohols, drying and cooling after coating or printing a compact agent to form the compact treatment layer, and the coating weight is 20-120g/m 2 The coating temperature is 60-150 ℃;
2) printing an ink texture layer on the surface of the compact treatment layer, wherein the ink texture layer is printed by using ink to obtain a single-color or multi-color pattern;
3) after the ink texture layer is dried, partially overprinting a temperature-sensitive reversible color changing layer on the surface of the ink texture layer, arranging one or more temperature-sensitive reversible color changing layers according to the arrangement of patterns and color changing rules, and cooling after drying, wherein the printing speed is 10-120m/min, and the drying temperature is 80-200 ℃;
4) the surface of the temperature-sensitive reversible discoloring layer is covered with a transparent resin layer, and the light transmittance of the transparent resin layer is more than 95.3 percent.
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