CN111823744B - Heat transfer film for photochromic vehicle and preparation method thereof - Google Patents
Heat transfer film for photochromic vehicle and preparation method thereof Download PDFInfo
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- CN111823744B CN111823744B CN202010847893.9A CN202010847893A CN111823744B CN 111823744 B CN111823744 B CN 111823744B CN 202010847893 A CN202010847893 A CN 202010847893A CN 111823744 B CN111823744 B CN 111823744B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
- B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
- B41F16/0073—Transfer printing apparatus for printing from an inked or preprinted foil or band with means for printing on specific materials or products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
- B41M5/0253—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet using a chemical colour-forming ink, e.g. chemical hectography
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2443/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium or a metal; Derivatives of such polymers
- C08J2443/04—Homopolymers or copolymers of monomers containing silicon
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Abstract
The invention relates to a heat transfer film for a photochromic vehicle, which comprises a belt base and a photochromic heat transfer color layer coated on the surface of the belt base, wherein the heat transfer color layer is prepared from the following raw materials in parts by weight: 70-80 parts of binder and 20-30 parts of photochromic powder. The heat transfer film for the photosensitive color-changing vehicle is printed on vehicle window glass after heat transfer, is transparent under the condition of no illumination, has the functions of changing color and blocking ultraviolet rays under illumination, and can deepen the color along with the increase of illumination intensity; has the advantages of good water resistance, scratch resistance, low price, weather resistance, long service life and the like.
Description
Technical Field
The invention belongs to the technical field of thermoprinting materials, and particularly relates to a heat transfer film for a photochromic vehicle and a preparation method thereof.
Background
At present, most of automobile films in the market take a PET film as a carrier, a layer of acrylic resin is brushed on the film, infrared rays are absorbed through nano ceramic particles contained in the film to achieve the purposes of heat insulation and the like, but the absorption of ultraviolet rays is relatively weak, the film can age under the irradiation of sunlight, yellowing is caused after long time, wrinkles obstruct vision, and driving safety is influenced.
The heat transfer film for the photosensitive color-changing vehicle is printed on glass after being hot-pressed by a heat transfer principle, is colorless and transparent under the condition of no sunlight irradiation, develops color by ring-opening conjugation reaction of photosensitive color-changing pigment after absorbing ultraviolet rays, and decolors under the condition of no light irradiation, has the characteristics of high light transmittance, low ultraviolet ray penetration rate and the like, avoids the problems of aging, yellowing, influence on sight and the like caused by long-time sunlight irradiation compared with other common vehicle films, and has the advantages of low price, long service life, strong resistance and the like.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the heat transfer film for the photosensitive color-changing vehicle, which solves the problems of aging, yellowing, influence on sight and the like caused by long-time sunlight irradiation and has the advantages of low price, long service life, strong resistance and the like.
The invention also provides a preparation method of the heat transfer film for the photochromic vehicle.
In order to achieve the purpose, the invention adopts the following technical scheme:
the heat transfer film for the photochromic vehicle comprises a tape base and a heat transfer color layer which is coated on one side surface of the tape base and can be photochromic, wherein the total amount of the heat transfer color layer is 100 parts, and the heat transfer color layer is prepared from the following raw materials in parts by weight: 70-80 parts of binder and 20-30 parts of photochromic powder.
More preferably, the bonding material is organic silicon modified acrylic resin. The function of the coating is that the coating obtained by the organosilicon modified acrylic resin has very good weather resistance, water resistance, transparency and the like.
More preferably, the photosensitive variable toner is a spiropyran-based photochromic material, also called spiropyran photosensitive variable toner. The photosensitive color-changing powder can generate ring-opening conjugation reaction to develop color after absorbing ultraviolet rays, and can effectively absorb partial ultraviolet energy to achieve the effect of blocking the ultraviolet rays. Other color-changing powder has unstable halogen and toxicity due to different color-changing principles, short color-changing service life and complex process preparation, and is not suitable for the products.
More preferably, the base tape is a PET polyester film with the thickness of 10-14 microns.
The invention provides a preparation method of the heat transfer film for the photochromic vehicle, which comprises the following steps:
1) weighing the connecting material and the methylcyclopentane according to the weight ratio of 1-5: 3-7, mixing and heating to 60-70 ℃, stirring until the mixture is completely clear, cooling, adding the photosensitive photochromic powder, dispersing uniformly, grinding the uniformly dispersed material, wherein D50 is not more than 1.5 mu m after grinding;
2) uniformly coating the material obtained by grinding in the step 1) on the surface of one side of the belt base, and drying to obtain the belt base.
Specifically, a pin rod type sand mill can be used for grinding in the step 1).
Specifically, the coating thickness in the step 2) can be 5-6 microns, and the drying temperature can be 100-120 ℃.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1) the heat transfer film for the photosensitive color-changing vehicle, provided by the invention, has the advantages that the heat transfer film absorbs ultraviolet rays to change color under the irradiation of sunlight so as to achieve the purpose of blocking the ultraviolet rays, and the stronger the ultraviolet rays are, the darker the color of the film is, and the film can quickly change back to be transparent under the condition of no illumination;
2) the heat transfer film product is transferred to toughened glass for vehicles, the transferred glass is irradiated under the sun, the glass can be completely and uniformly changed into dark gray within 2-3 minutes, the light transmittance is detected to be more than 75% after the glass is completely discolored, and the ultraviolet absorption rate is more than 95%;
3) the heat transfer film for the photosensitive color-changing vehicle is low in price, practical and long in service life, and solves the problem that the conventional vehicle film is easy to age and turn yellow.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the following examples, but the scope of the present invention is not limited thereto.
In the following examples, the selected raw materials are described as follows:
carrying out tape base: a PET polyester film with the thickness of 12 microns, and the manufacturer is Shandong Fuwei film Co.Ltd;
silicone-modified acrylic resin (thermoplastic resin): purchased from Shenzhen Jipeng silicon fluorine materials GmbH, model number JP-R0021, viscosity of 30mpa · s;
photosensitive variable toner: the spiropyran allochroic material, namely the gray SMC33# of the allochroic ink coating company in Dongguan is selected and changed from colorless to gray. D50 is 5 +/-2 microns and resists the high temperature of 220 ℃;
methylcyclopentane, performance requirements: the water content of the common chemical solvent is less than 0.5 percent, and no other requirements exist.
Example 1
The heat transfer film for the photochromic vehicle provided by the embodiment comprises a carrier tape base and a heat transfer color layer coated on one side surface of the tape base, wherein the tape base is a PET polyester film with the thickness of 12 microns; the thermal transfer color layer is prepared from the following raw materials in parts by weight: 80 parts of organic silicon modified acrylic resin; and 20 parts of photosensitive variable toner.
The specific preparation process of the heat transfer film for the photochromic vehicle comprises the following steps:
(1) weighing the organosilicon modified acrylic resin and the methylcyclopentane in a weight ratio of (1: 3: 5), adding the organosilicon modified acrylic resin into the methylcyclopentane, heating to 60 ℃, stirring to be completely transparent, then adding the photosensitive variable toner in a corresponding ratio and uniformly dispersing, then grinding the dispersed material to a particle size D50 smaller than 1.5 mu m by using a pin type sand mill, and storing for later use after grinding;
(2) uniformly coating the material obtained by grinding in the step (1) on the surface of one side of the PET polyester film by a coating machine, and controlling the coating thickness to be 5 microns;
(3) and (3) drying the product obtained in the step (2) at a high temperature of 100 ℃ to obtain the heat transfer film product for the photochromic vehicle.
And (3) detecting the related performance of the product:
(a) and (3) detecting the appearance after use: at the temperature of 160 ℃, the product manufactured by the embodiment is transferred to the toughened glass for vehicles, the surface layer after transfer printing is uniform, has no leak points and is transparent, and the light transmittance of the glass is not influenced basically;
(b) detecting the color change performance after transfer printing: the transferred glass is placed under the sun for irradiation, can be completely and uniformly changed into dark gray within 2-3 minutes, has no omission and no color change, and has the light transmittance of 79.5 percent and the ultraviolet absorptivity of 95.6 percent after being completely changed into color;
(c) after complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination;
(d) water resistance test, using the cotton cloth completely wet by water to wipe the glass after transfer printing back and forth for 50 times, and then placing the glass in the sun to be completely and uniformly changed into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination; the light transmittance and the ultraviolet blocking rate can reach the indexes detected in the step (b);
(e) and (3) low temperature resistance test, namely placing the transferred glass in an environment of-10 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, and completely and uniformly changing the glass into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet blocking rate can reach the indexes detected in the step (b);
(f) and (3) high temperature resistance testing, namely placing the transferred glass in an environment of 50 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, wherein the glass can be completely and uniformly changed into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet blocking rate can reach the indexes detected in the step (b).
Comparative example 1
The heat transfer printing film for the photochromic vehicle comprises a carrier tape base and a heat transfer printing color layer coated on the surface of one side of the tape base, wherein the tape base is a PET polyester film with the thickness of 12 mu m; the thermal transfer color layer is prepared from the following raw materials in parts by weight: 80 parts of acrylic resin; and 20 parts of photosensitive variable toner.
The preparation method of the thermal transfer film for the photochromic vehicle provided by the comparative example refers to example 1.
And (3) detecting the related performance of the product:
(a) and (3) detecting the appearance after use: at the temperature of 160 ℃, the product manufactured by the embodiment is transferred to the toughened glass for vehicles, the surface layer after transfer printing is uniform, has no leak points and is transparent, and the light transmittance of the glass is not influenced basically;
(b) detecting the color change performance after transfer printing: the transferred glass is placed under the sun for irradiation, can be completely and uniformly changed into dark gray within 2-3 minutes, has no omission and no color change, and has the light transmittance of 78.1 percent and the ultraviolet absorptivity of 92.7 percent after being completely changed into color;
(c) after complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination;
(d) water resistance test, wiping the glass after transfer with cotton cloth completely wetted with water for 50 times, and then placing sunlight for 2-3 minutes to change into gray color with little white spots and slender white channels, which shows that part of the transfer layer is destroyed by water after being wiped by water;
(e) and (3) low temperature resistance test, namely placing the transferred glass in an environment at the temperature of-10 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, and changing color within 2 to 3 minutes without missing or changing color. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet blocking rate can reach the indexes detected in the step (b);
(f) and (3) high temperature resistance testing, namely placing the transferred glass in an environment of 50 ℃ for 1 hour, taking out the glass, placing the glass under the sun illumination, changing the glass into grey within 2-3 minutes but generating partial cracks, and enabling the transfer layer to generate dry cracking at high temperature.
Comparative example 2
The heat transfer printing film for the photochromic vehicle comprises a carrier tape base and a heat transfer printing color layer coated on the surface of one side of the tape base, wherein the tape base is a PET polyester film with the thickness of 12 mu m; the thermal transfer color layer is prepared from the following raw materials in parts by weight: 80 parts of organic silicon modified acrylic resin; and 20 parts of silver halide.
The preparation method of the thermal transfer film for the photochromic vehicle provided by the comparative example refers to example 1.
And (3) detecting the related performance of the product:
(a) and (3) detecting the appearance after use: at the temperature of 160 ℃, the product manufactured by the embodiment is transferred to the toughened glass for the vehicle, and the transferred surface layer is uneven and has poor transparency because the inorganic photosensitive color-changing powder is used as a color-changing material, the production process is complex and the product is not suitable for the printing film;
(b) detecting the color change performance after transfer printing: the transferred glass is placed under the sun for irradiation, and the glass cannot normally change color as in example 1;
(d) water resistance test, wiping the glass after transfer printing with cotton cloth completely wetted with water for 50 times, and placing in the sun to prevent normal color change;
(e) and (3) low temperature resistance test, namely placing the transferred glass in an environment of-10 ℃ for 1 hour, taking out and placing the glass under the sun illumination for irradiation, and failing to change color normally. Indexes;
(f) and (3) high temperature resistance testing, namely placing the transferred glass in an environment of 50 ℃ for 1 hour, taking out and placing the glass under the sun illumination for irradiation, and failing to change color normally.
Example 2
The heat transfer film product for the photochromic vehicle provided by the embodiment comprises the following raw materials in proportion: 80 parts of organic silicon modified acrylic resin; and 20 parts of photosensitive variable toner.
The preparation method of the thermal transfer film for the photochromic vehicle provided by the embodiment is substantially the same as that of the embodiment 1, and only part of parameters are adjusted as follows:
in the preparation process, in the step (1), the weight ratio of the organic silicon modified acrylic resin to the methylcyclopentane is = 2: 6; in the step (2), the thickness of the coating is 5 microns; the drying temperature in the step (3) is 100 ℃.
And (3) detecting the related performance of the product:
(a) and (3) detecting the appearance after use: at the temperature of 160 ℃, the product manufactured by the embodiment is transferred to the toughened glass for vehicles, the surface layer after transfer printing is uniform, has no leak points and is transparent, and the light transmittance of the glass is not influenced basically;
(b) detecting the color change performance after transfer printing: the glass after transfer printing was irradiated under the sun light, and was completely uniformly changed to dark gray within 2 to 3 minutes, and the color change was more darker in the appearance than that of example 1. After complete color change, the light transmittance is detected to be 80.2 percent, and the ultraviolet absorptivity is 96.1 percent;
(c) after complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination;
(d) and (3) testing water resistance, wiping the glass after transfer printing by cotton cloth completely wetted by water for 50 times, completely changing color within 2-3 minutes after being placed in the sun, and completely fading and changing the color into transparent within 2-3 minutes after being completely changed color without illumination. The light transmittance and the ultraviolet absorptivity reach the data detected in the step (b) after the color is completely changed;
(e) and (3) low temperature resistance test, namely placing the transferred glass in an environment of-10 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, and completely and uniformly changing the glass into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b);
(f) and (3) high temperature resistance testing, namely placing the transferred glass in an environment of 50 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, wherein the glass can be completely and uniformly changed into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b).
Example 3
The heat transfer film product for the photochromic vehicle provided by the embodiment comprises the following raw materials in proportion: 80 parts of organic silicon modified acrylic resin; and 20 parts of photosensitive variable toner.
The preparation method of the thermal transfer film for the photochromic vehicle provided by the embodiment is substantially the same as that of the embodiment 1, and only part of parameters are adjusted as follows:
in the preparation process, in the step (1), the organosilicon modified acrylic resin is prepared by mixing (by weight ratio) methylcyclopentane = 1: 7, and the heating temperature is adjusted to 70 ℃; in the step (2), the thickness of the coating is 5 microns; the drying temperature in the step (3) is 100 ℃.
And (3) detecting the related performance of the product:
(a) and (3) detecting the appearance after use: at the temperature of 160 ℃, the product manufactured by the embodiment is transferred to the toughened glass for vehicles, the surface layer after transfer printing is uniform, has no leak points and is transparent, and the light transmittance of the glass is not influenced basically;
(b) detecting the color change performance after transfer printing: the glass after transfer printing is placed under the sun for irradiation, the glass is completely and uniformly changed into dark gray within 2-3 minutes, the glass does not have the condition of omission and no color change, the apparent color is darker than that of the example 2, but the light transmittance is lower than that of the example 1, the detection data is that the light transmittance is 65.3 percent, and the ultraviolet absorption rate is 95.1 percent;
(c) after complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination;
(d) and (3) testing water resistance, wiping the glass after transfer printing by cotton cloth completely wetted by water for 50 times, completely changing color within 2-3 minutes after being placed in the sun, and completely fading and changing the color into transparent within 2-3 minutes after being completely changed color without illumination. The light transmittance and the ultraviolet absorptivity reach the data detected in the step (b) after the color is completely changed;
(e) and (3) low temperature resistance test, namely placing the transferred glass in an environment of-10 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, and completely and uniformly changing the glass into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b);
(f) and (3) high temperature resistance testing, namely placing the transferred glass in an environment of 50 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, wherein the glass can be completely and uniformly changed into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b).
Example 4
The heat transfer film product for the photochromic vehicle provided by the embodiment comprises the following raw materials in proportion: 80 parts of organic silicon modified acrylic resin; and 20 parts of photosensitive variable toner.
The preparation method of the thermal transfer film for the photochromic vehicle provided by the embodiment is substantially the same as that of the embodiment 1, and only part of parameters are adjusted as follows:
in the preparation process, in the step (1), the organosilicon modified acrylic resin is mixed with methylcyclopentane by weight ratio = 5: 3, and the heating temperature is adjusted to 70 ℃; in the step (2), the thickness of the coating is 5 microns; the drying temperature in the step (3) is 100 ℃.
And (3) detecting the related performance of the product:
(a) and (3) detecting the appearance after use: at the temperature of 160 ℃, the product manufactured by the embodiment is transferred to the toughened glass for vehicles, the surface layer after transfer printing is uniform, has no leak points and is transparent, and the light transmittance of the glass is not influenced basically;
(b) detecting the color change performance after transfer printing: the glass after transfer printing is placed under the sun for irradiation, the glass is completely and uniformly changed into dark gray without omission or color change within 2-3 minutes, the apparent color after complete color change is lighter than that of example 1, but the data of the light transmittance is 65 percent lower than that of example 1, and the ultraviolet absorption rate is 89.9 percent;
(c) after complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination;
(d) and (3) testing water resistance, wiping the glass after transfer printing by cotton cloth completely wetted by water for 50 times, completely changing color within 2-3 minutes after being placed in the sun, and completely fading and changing the color into transparent within 2-3 minutes after being completely changed color without illumination. The light transmittance and the ultraviolet absorptivity reach the data detected in the step (b) after the color is completely changed;
(e) and (3) low temperature resistance test, namely placing the transferred glass in an environment of-10 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, and completely and uniformly changing the glass into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b);
(f) and (3) high temperature resistance testing, namely placing the transferred glass in an environment of 50 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, wherein the glass can be completely and uniformly changed into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b).
Example 5
The heat transfer film product for the photochromic vehicle provided by the embodiment comprises the following raw materials in proportion: 70 parts of organic silicon modified acrylic resin; and 30 parts of photosensitive variable toner.
The preparation method of the thermal transfer film for the photochromic vehicle provided by the embodiment is substantially the same as that of the embodiment 1, and only part of parameters are adjusted as follows:
in the preparation process, in the step (1), the organosilicon modified acrylic resin is mixed with methylcyclopentane by weight ratio = 3: 4, and the heating temperature is adjusted to 70 ℃; in the step (2), the thickness of the coating is 5 microns; the drying temperature in the step (3) is 100 ℃.
And (3) detecting the related performance of the product:
(a) and (3) detecting the appearance after use: at the temperature of 160 ℃, the product manufactured by the embodiment is transferred to the toughened glass for the vehicle, the surface layer after transfer printing is uniform, has no leakage points and is transparent, and the light transmittance of the glass is basically not influenced;
(b) detecting the color change performance after transfer printing: the glass after transfer printing is placed under the sun for irradiation, and completely and uniformly changed into dark gray within 2-3 minutes, and the condition of omission and no color change is avoided, and the color change appearance condition is closer to that of example 2. The complete color change partial light transmittance is detected to be 70.1 percent, and the ultraviolet absorptivity reaches 98.0 percent;
(c) after complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination;
(d) and (3) testing water resistance, wiping the glass after transfer printing by cotton cloth completely wetted by water for 50 times, completely changing color within 2-3 minutes after being placed in the sun, and completely fading and changing the color into transparent within 2-3 minutes after being completely changed color without illumination. The light transmittance and the ultraviolet absorptivity reach the data detected in the step (b) after the color is completely changed;
(e) and (3) low temperature resistance test, namely placing the transferred glass in an environment of-10 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, and completely and uniformly changing the glass into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b);
(f) and (3) high temperature resistance testing, namely placing the transferred glass in an environment of 50 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, wherein the glass can be completely and uniformly changed into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b).
Example 6
The heat transfer film product for the photochromic vehicle provided by the embodiment comprises the following raw materials in proportion: 70 parts of organic silicon modified acrylic resin; and 30 parts of photosensitive variable toner.
The preparation method of the thermal transfer film for the photochromic vehicle provided by the embodiment is substantially the same as that of the embodiment 1, and only part of parameters are adjusted as follows:
in the preparation process, in the step (1), the weight ratio of the organic silicon modified acrylic resin to the methylcyclopentane is = 5:2, and the heating temperature is adjusted to 70 ℃; in the step (2), the thickness of the coating is 5 microns; the drying temperature in the step (3) is 100 ℃.
And (3) detecting the related performance of the product:
(a) and (3) detecting the appearance after use: at the temperature of 160 ℃, the product manufactured by the embodiment is transferred to the toughened glass for vehicles, the surface layer after transfer printing is uniform, has no leak points and is transparent, and the light transmittance of the glass is not influenced basically;
(b) detecting the color change performance after transfer printing: the glass after transfer printing is irradiated under the sun light, and completely and uniformly changed into dark gray within 2-3 minutes, and the condition of absence, omission and no color change is realized, and the color change appearance is close to that of the example 1. The complete color change of the partial light transmittance is detected to be 65.3 percent, and the ultraviolet absorptivity is 98.0 percent;
(c) after complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination;
(d) and (3) testing water resistance, wiping the glass after transfer printing by cotton cloth completely wetted by water for 50 times, completely changing color within 2-3 minutes after being placed in the sun, and completely fading and changing the color into transparent within 2-3 minutes after being completely changed color without illumination. The light transmittance and the ultraviolet absorptivity reach the data detected in the step (b) after the color is completely changed;
(e) and (3) low temperature resistance test, namely placing the transferred glass in an environment of-10 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, and completely and uniformly changing the glass into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b);
(f) and (3) high temperature resistance testing, namely placing the transferred glass in an environment of 50 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, wherein the glass can be completely and uniformly changed into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b).
Example 7
The heat transfer film product for the photochromic vehicle provided by the embodiment comprises the following raw materials in proportion: 70 parts of organic silicon modified acrylic resin; 30 parts of photosensitive variable toner.
The preparation method of the heat transfer film for the photochromic vehicle provided by the embodiment is substantially the same as that of the embodiment 1, and only part of parameters are adjusted as follows:
in the preparation process, in the step (1), the weight ratio of the organic silicon modified acrylic resin to the methylcyclopentane is = 2: 5, and the heating temperature is adjusted to 70 ℃; in the step (2), the coating thickness is 5 micrometers; the drying temperature in the step (3) is 100 ℃.
And (3) detecting the related performance of the product:
(a) and (3) detecting the appearance after use: at the temperature of 160 ℃, the product manufactured by the embodiment is transferred to the toughened glass for vehicles, the surface layer after transfer printing is uniform, has no leak points and is transparent, and the light transmittance of the glass is not influenced basically;
(b) detecting the color change performance after transfer printing: the glass after transfer printing is placed under the sun for irradiation, and completely and uniformly changed into dark gray within 2-3 minutes, and the condition of omission and no color change is avoided, and the color change appearance condition is closer to that of example 3. But the detection transmittance was better than example 3. The transmittance of the complete color change is detected to be 80.1 percent, and the ultraviolet absorptivity is 98.0 percent;
(c) after complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination;
(d) and (3) testing water resistance, wiping the glass after transfer printing by cotton cloth completely wetted by water for 50 times, completely changing color within 2-3 minutes after being placed in the sun, and completely fading and changing the color into transparent within 2-3 minutes after being completely changed color without illumination. The light transmittance and the ultraviolet absorptivity reach the data detected in the step (b) after the color is completely changed;
(e) and (3) low temperature resistance test, namely placing the transferred glass in an environment of-10 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, and completely and uniformly changing the glass into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b);
(f) and (3) high temperature resistance testing, namely placing the transferred glass in an environment of 50 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, wherein the glass can be completely and uniformly changed into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b).
Example 8
The heat transfer film product for the photochromic vehicle provided by the embodiment comprises the following raw materials in proportion: 70 parts of organic silicon modified acrylic resin; 30 parts of photosensitive variable toner.
The preparation method of the heat transfer film for the photochromic vehicle provided by the embodiment is substantially the same as that of the embodiment 1, and only part of parameters are adjusted as follows:
in the preparation process, in the step (1), the organosilicon modified acrylic resin is prepared by mixing methylcyclopentane (methyl cyclopentane) = 2: 5 by weight, and the heating temperature is adjusted to 70 ℃; in the step (2), the coating thickness is 6 microns; the drying temperature in the step (3) is 120 ℃.
And (3) detecting the related performance of the product:
(a) and (3) detecting the appearance after use: at the temperature of 160 ℃, the product manufactured by the embodiment is transferred to the toughened glass for vehicles, the surface layer after transfer printing is uniform, has no leak points and is transparent, and the light transmittance of the glass is not influenced basically;
(b) detecting the color change performance after transfer printing: the glass after transfer printing is irradiated under the sun light, and completely and uniformly changed into dark gray within 2-3 minutes, and the condition of absence, omission and no color change is realized, and the color change appearance is darker than that of the example 7. But the detection of the transmittance is reduced. The transmittance of the complete color change is detected to be 70.5 percent, and the ultraviolet absorptivity is 98.3 percent;
(c) after complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination;
(d) and (3) testing water resistance, wiping the glass after transfer printing by cotton cloth completely wetted by water for 50 times, completely changing color within 2-3 minutes after being placed in the sun, and completely fading and changing the color into transparent within 2-3 minutes after being completely changed color without illumination. The light transmittance and the ultraviolet absorptivity reach the data detected in the step (b) after the color is completely changed;
(e) and (3) low temperature resistance test, namely placing the transferred glass in an environment of-10 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, and completely and uniformly changing the glass into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b);
(f) and (3) high temperature resistance testing, namely placing the transferred glass in an environment of 50 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, wherein the glass can be completely and uniformly changed into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b).
Example 9
The heat transfer film product for the photochromic vehicle provided by the embodiment comprises the following raw materials in proportion: 70 parts of organic silicon modified acrylic resin; and 30 parts of photosensitive variable toner.
The preparation method of the thermal transfer film for the photochromic vehicle provided by the embodiment is substantially the same as that of the embodiment 1, and only part of parameters are adjusted as follows:
in the preparation process, in the step (1), the organosilicon modified acrylic resin is mixed with methylcyclopentane by weight ratio = 2: 5, and the heating temperature is adjusted to 65 ℃; in the step (2), the coating thickness is 6 microns; the drying temperature in the step (3) is 110 ℃.
And (3) detecting the related performance of the product:
(a) and (3) detecting the appearance after use: at the temperature of 150 ℃, the product manufactured by the embodiment is transferred to the toughened glass for vehicles, the surface layer after transfer printing is uniform, has no leak points and is transparent, and the light transmittance of the glass is not influenced basically;
(b) detecting the color change performance after transfer printing: the glass after transfer printing is irradiated under the sun light, and completely and uniformly changed into dark gray within 2-3 minutes without missing or discoloring, and the color change appearance is closer to that of example 8. The transmittance of the complete color change is detected to be 70.2 percent, and the ultraviolet absorptivity is more than 98.1 percent;
(c) after complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination;
(d) and (3) testing water resistance, wiping the glass after transfer printing by cotton cloth completely wetted by water for 50 times, completely changing color within 2-3 minutes after being placed in the sun, and completely fading and changing the color into transparent within 2-3 minutes after being completely changed color without illumination. The light transmittance and the ultraviolet absorptivity reach the data detected in the step (b) after the color is completely changed;
(e) and (3) low temperature resistance test, namely placing the transferred glass in an environment of-10 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, and completely and uniformly changing the glass into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b);
(f) and (3) high temperature resistance testing, namely placing the transferred glass in an environment of 50 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, wherein the glass can be completely and uniformly changed into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b).
Example 10
The heat transfer film product for the photochromic vehicle provided by the embodiment comprises the following raw materials in proportion: 80 parts of organic silicon modified acrylic resin; and 20 parts of photosensitive variable toner.
The preparation method of the thermal transfer film for the photochromic vehicle provided by the embodiment is substantially the same as that of the embodiment 1, and only part of parameters are adjusted as follows:
in the preparation process, in the step (1), the organosilicon modified acrylic resin is mixed with methylcyclopentane = 2: 6 by weight, and the heating temperature is 60 ℃; in the step (2), the coating thickness is 6 microns; the drying temperature in the step (3) is 120 ℃.
And (3) detecting the related performance of the product:
(a) and (3) detecting the appearance after use: at the temperature of 160 ℃, the product manufactured by the embodiment is transferred to the toughened glass for vehicles, the surface layer after transfer printing is uniform, has no leak points and is transparent, and the light transmittance of the glass is not influenced basically;
(b) detecting the color change performance after transfer printing: the glass after transfer printing is placed under the sun for irradiation, the glass can be completely and uniformly changed into dark gray within 2 to 3 minutes, and the appearance feeling after color change is closer to the color of example 3. The transmittance is detected to be more than 75.2 percent after complete color change, and the ultraviolet absorptivity is 95.0 percent;
(c) after complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination;
(d) and (3) testing water resistance, wiping the glass after transfer printing by cotton cloth completely wetted by water for 50 times, completely changing color within 2-3 minutes after being placed in the sun, and completely fading and changing the color into transparent within 2-3 minutes after being completely changed color without illumination. The light transmittance and the ultraviolet absorptivity reach the data detected in the step (b) after the color is completely changed;
(e) and (3) low temperature resistance testing, namely placing the transferred glass in an environment of-10 ℃ for 1 hour, taking out the glass, placing the glass under the sun illumination, and completely and uniformly changing the glass into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b);
(f) and (3) high temperature resistance testing, namely placing the transferred glass in an environment of 50 ℃ for 1 hour, taking out the glass and placing the glass under the sun illumination for irradiation, wherein the glass can be completely and uniformly changed into dark gray within 2-3 minutes. After complete color change, the color can be completely decolored and changed into transparent in 2-3 minutes under the condition of no illumination, and the light transmittance and the ultraviolet absorption rate can reach the indexes detected in the step (b).
Claims (5)
1. The heat transfer film for the photochromic vehicle is characterized by comprising a base and a heat transfer color layer coated on the surface of the base and capable of changing color by sensitization, wherein the heat transfer color layer is prepared from the following raw materials in parts by weight: 70-80 parts of binder and 20-30 parts of photochromic powder;
the bonding material is organic silicon modified acrylic resin;
the photosensitive color-changing powder is a spiropyran photochromic material;
the heat transfer film for the photochromic vehicle absorbs ultraviolet rays to change color under the irradiation of sunlight so as to achieve the purpose of blocking the ultraviolet rays, the color of the heat transfer film for the photochromic vehicle is darker when the ultraviolet rays are stronger, and the heat transfer film for the photochromic vehicle can be quickly changed back to be transparent under the condition of no irradiation of the sunlight;
the heat transfer film for the photochromic vehicle is transferred to toughened glass for the vehicle, the transferred glass is irradiated under the sun light, the glass can be completely and uniformly changed into dark gray within 2-3 minutes, the light transmittance is detected to be more than 75% after complete color change, and the ultraviolet absorption rate is more than 95%.
2. The photochromic vehicular heat transfer film according to claim 1, wherein the tape base is a PET polyester film having a thickness of 10 to 14 μm.
3. The method for preparing the heat transfer film for the photochromic vehicle according to any one of claims 1 to 2, comprising the steps of:
1) weighing the connecting material and the methylcyclopentane according to a weight ratio of 1-5: 3-7 or 5:2, mixing and heating to 60-70 ℃, stirring until the mixture is completely clear, cooling, adding the photosensitive variable toner according to a corresponding ratio, uniformly dispersing, grinding the uniformly dispersed material, wherein D50 is not more than 1.5 mu m after grinding;
2) uniformly coating the material obtained by grinding in the step 1) on the surface of one side of the belt base, and drying to obtain the belt base.
4. The method for preparing the heat transfer film for the photochromic vehicle according to claim 3, wherein a pin-type sand mill is selected during grinding in the step 1).
5. The method for preparing the heat transfer film for the photochromic vehicle according to claim 3, wherein the coating thickness in the step 2) is 5 to 6 micrometers, and the drying temperature is 100 ℃ to 120 ℃.
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| KR20010045215A (en) * | 1999-11-03 | 2001-06-05 | 이영신 | Ultraviolet Control Film |
| KR20030089544A (en) * | 2002-05-16 | 2003-11-22 | 강석진 | High Transparancy Photochromic Film |
| CN101842451A (en) * | 2007-11-01 | 2010-09-22 | Lg化学株式会社 | Photochromic compositions and photochromic films |
| CN202147456U (en) * | 2011-06-27 | 2012-02-22 | 浙江鼎昇新材料科技有限公司 | Photochromic function film |
| CN204405884U (en) * | 2014-05-20 | 2015-06-17 | 太湖金张科技股份有限公司 | A kind of obstruct blue light hardening resin film |
| CN107512096A (en) * | 2017-08-28 | 2017-12-26 | 河南卓立膜材料股份有限公司 | Heat transfer film for temperature-sensitive color-changing type transfusion soft bag and preparation method |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010045215A (en) * | 1999-11-03 | 2001-06-05 | 이영신 | Ultraviolet Control Film |
| KR20030089544A (en) * | 2002-05-16 | 2003-11-22 | 강석진 | High Transparancy Photochromic Film |
| CN101842451A (en) * | 2007-11-01 | 2010-09-22 | Lg化学株式会社 | Photochromic compositions and photochromic films |
| CN202147456U (en) * | 2011-06-27 | 2012-02-22 | 浙江鼎昇新材料科技有限公司 | Photochromic function film |
| CN204405884U (en) * | 2014-05-20 | 2015-06-17 | 太湖金张科技股份有限公司 | A kind of obstruct blue light hardening resin film |
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Address after: 454000 No. 959, Nanhai West Road, demonstration zone, Jiaozuo City, Henan Province Patentee after: Jiaozuo Zhuoli film material Co.,Ltd. Address before: 454000 No. 959, Nanhai West Road, demonstration zone, Jiaozuo City, Henan Province Patentee before: Jiaozuo Zhuoli membrane materials Co.,Ltd. |