CN115637114B - Manufacturing method of thermochromic thermal adhesive film - Google Patents
Manufacturing method of thermochromic thermal adhesive film Download PDFInfo
- Publication number
- CN115637114B CN115637114B CN202211270364.2A CN202211270364A CN115637114B CN 115637114 B CN115637114 B CN 115637114B CN 202211270364 A CN202211270364 A CN 202211270364A CN 115637114 B CN115637114 B CN 115637114B
- Authority
- CN
- China
- Prior art keywords
- resin
- thermochromic
- color
- layer
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 239000002313 adhesive film Substances 0.000 title claims abstract description 31
- 239000010410 layer Substances 0.000 claims abstract description 87
- 238000013329 compounding Methods 0.000 claims abstract description 37
- 239000002344 surface layer Substances 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000004049 embossing Methods 0.000 claims abstract description 25
- 239000012943 hotmelt Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims description 64
- 239000011347 resin Substances 0.000 claims description 64
- 239000000758 substrate Substances 0.000 claims description 61
- 238000001035 drying Methods 0.000 claims description 60
- 238000003756 stirring Methods 0.000 claims description 51
- 239000000843 powder Substances 0.000 claims description 42
- 239000011248 coating agent Substances 0.000 claims description 41
- 238000000576 coating method Methods 0.000 claims description 41
- 239000002270 dispersing agent Substances 0.000 claims description 33
- 239000002904 solvent Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 22
- 238000002844 melting Methods 0.000 claims description 13
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 12
- 229920000178 Acrylic resin Polymers 0.000 claims description 11
- 239000004925 Acrylic resin Substances 0.000 claims description 11
- 239000011230 binding agent Substances 0.000 claims description 11
- 239000011259 mixed solution Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 229920000728 polyester Polymers 0.000 claims description 10
- 229920002635 polyurethane Polymers 0.000 claims description 10
- 239000004814 polyurethane Substances 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 9
- 229920000180 alkyd Polymers 0.000 claims description 6
- 238000007645 offset printing Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000010345 tape casting Methods 0.000 claims description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- 150000008431 aliphatic amides Chemical class 0.000 claims description 5
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 150000004665 fatty acids Chemical class 0.000 claims description 5
- 229920002313 fluoropolymer Polymers 0.000 claims description 5
- 238000007731 hot pressing Methods 0.000 claims description 5
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 claims description 5
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 claims description 5
- 229920001225 polyester resin Polymers 0.000 claims description 5
- 239000004645 polyester resin Substances 0.000 claims description 5
- 229920005749 polyurethane resin Polymers 0.000 claims description 5
- 238000007650 screen-printing Methods 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 claims description 4
- -1 acrylic ester Chemical class 0.000 claims description 4
- 208000031636 Body Temperature Changes Diseases 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 11
- 239000000126 substance Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007776 silk screen coating Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
The invention discloses a method for manufacturing a thermochromic thermal paste film, which comprises a surface layer, a thermochromic layer, a supporting layer and a hot-melt layer, wherein the surface layer, the thermochromic layer, the supporting layer and the hot-melt layer are sequentially connected, and the method comprises the following steps: step S1 is used for manufacturing the surface layer. Step S2 is used for manufacturing the thermochromic layer. Step S3 is used for manufacturing the supporting layer. Step S4 is for embossing, and step S5 is for making a hot melt layer. Step S6 is for compounding. Through the design, the thermal adhesive film has a thermochromic function, so that the thermal adhesive film can be better applied to clothes to reflect the body temperature change of people.
Description
Technical Field
The invention relates to the technical field of thermal adhesive films, in particular to a method for manufacturing a thermochromic thermal adhesive film.
Background
The thermal film in the current market generally has a light reflection function, or has the function of protecting or decorating clothes by patterns or colors, has fewer functions, has few other functions and has poor use experience, so that improvement is needed.
Disclosure of Invention
Aiming at the defects of less functions, poor use experience and the like in the prior art, the invention provides a novel method for manufacturing the thermochromic thermal paste film.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the manufacturing method of the thermochromic thermal paste film comprises a surface layer, a thermochromic layer, a supporting layer and a hot melting layer, wherein the surface layer, the thermochromic layer, the supporting layer and the hot melting layer are sequentially connected, and the manufacturing method comprises the following steps:
s1: taking a PET substrate A, wherein the temperature resistance value of the PET substrate A is 200-220 ℃, the heat shrinkage rate is less than 1.5%, the thickness is 50-100 mu m, then taking resin A, stirring the resin A for 5-10 min, the stirring speed is 500-1000 rpm, coating the resin A on the PET substrate A through a comma scraper after stirring, and drying the PET substrate A in an oven at the drying temperature of 75-155 ℃ for 5-8 min to obtain a surface layer after the coating;
s2: mixing and stirring the color-changing powder, the connecting material, the solvent and the dispersing agent for 3-5 min at the stirring speed of 200-400 rpm to obtain the thermochromic ink, coating the thermochromic ink on the surface layer, drying the surface layer in an oven at the drying temperature of 100-120 ℃ for 3-5 min, and drying to obtain the thermochromic layer;
s3: mixing and stirring resin B and white ink for 5-10 min at 800-1000 rpm to obtain mixed solution, taking PET base material B with temperature resistance of 200-220 deg.C, heat shrinkage rate of less than 1.5% and thickness of 36-50 μm, coating the mixed solution on the PET base material B with comma scraper, drying the PET base material B in an oven at 75-155 deg.C for 5-8 min to obtain a support layer;
s4: the supporting layer is compounded with the thermochromic layer in a hot-pressing manner through an embossing machine, the embossing temperature is 190-210 ℃, the embossing pressure is 0.2-0.3 MPa, the embossing speed is 2-3 m/min, and the PET substrate B is peeled after the compounding is completed, so that a semi-finished thermal film is obtained;
s5: taking a release PET substrate C, wherein the temperature resistance value of the release PET substrate C is 200-220 ℃, the heat shrinkage rate is less than 1.5%, the thickness is 36-75 mu m, then taking resin C, stirring the resin C for 5-10 min, the stirring speed is 800-1000 rpm, coating the resin C on the release PET substrate C through a comma scraper, drying the release PET substrate C in an oven at the drying temperature of 75-120 ℃ and the drying time of 5-8 min, and obtaining a hot melt layer after drying;
s6: and compounding the hot-melting layer with the supporting layer by a compounding roller at the compounding temperature of 70-90 ℃ and the compounding pressure of 0.15-0.35 MPa, and obtaining the thermochromic thermal adhesive film after compounding.
The surface layer is used for protecting the thermochromic layer, and the wear resistance of the thermochromic thermal adhesive film is improved. The temperature sensing color-changing layer is used for sensing temperature, and the color of the temperature sensing color-changing layer changes along with the temperature change, so that the temperature change is reflected through the color change. The support layer forms a capsule structure through the pressing part, locks the thermochromic layer, and increases the wear resistance and chemical resistance of the thermochromic thermal adhesive film. The heat fusion layer enables the thermochromic heat adhesive film to have viscosity, can be attached to objects such as clothes in the scalding process, and improves applicability.
Step S1 is used for manufacturing the surface layer. The temperature resistance value of the PET substrate A ensures that the PET substrate A is more stable in the manufacturing process of the thermochromic thermal adhesive film, the thermal shrinkage rate of the PET substrate A ensures that the PET substrate A is not deformed when the PET substrate A is dried in an oven, and the thickness of the PET substrate A has both strength and embossing performance. Step S2 is used for manufacturing the thermochromic layer. The color-changing powder is used for realizing the color change by sensing the temperature change. The binder is used for wrapping and connecting the color-changing powder, so that the glossiness is improved. The solvent is used for adjusting the viscosity of the thermochromic ink, and is more beneficial to subsequent coating. The dispersing agent makes the dispersion of the color-changing powder more uniform. Step S3 is used for manufacturing the supporting layer. The white ink makes the resin B appear white, so that the color change of the color-changing powder can be better represented. The PET base material B does not generate film lines when being coated and dried, so that the subsequent embossing lines are clear, and the embossing bonding is firm. And S4, embossing, so that the pressing of the support layer and the thermochromic layer is clear and firm, and the pressing through is prevented. Step S5 is used for manufacturing the hot-melt layer. The release PET substrate C is used as a carrier of the resin C, so that drying shrinkage after coating is prevented, and the coating stability is ensured. The resin C is used for forming a film layer by drying after coating, and has viscosity after heating. And S6, compounding, namely adhering the hot-melt layer and the supporting layer together at the compounding temperature of 70-90 ℃ and the compounding pressure of 0.15-0.35 MPa.
The resin A and the resin B have good film forming performance, wear resistance and chemical resistance, play a role in protecting the thermochromic thermal adhesive film, and improve the stability. Stirring to disperse the solution at high speed, so that the subsequent coating is more stable. The comma scraper ensures that the coating is more uniform and is more beneficial to coating a film-forming layer. The drying effect is guaranteed while the chemical property of the film layer is reserved through drying in the oven.
Through the design, the thermal adhesive film has a thermochromic function, so that the thermal adhesive film can be better applied to clothes to reflect the body temperature change of people.
Preferably, in the above method for manufacturing a thermochromic thermal adhesive film, the resin a is one or more of polyurethane, polyester, acrylic acid, and PVC.
The resin A has good film forming performance, wear resistance and chemical resistance, plays a role in protecting the thermochromic thermal adhesive film, and improves the stability. Further improving the solvent resistance and wear resistance of the surface layer.
Preferably, in the above-mentioned method for manufacturing thermochromic thermal adhesive film, in step S2, the weight ratio of the color-changing powder, the binder, the solvent and the dispersant is 20-30: 100-120: 100-150: 2 to 4.
According to the design, the thermochromic powder has the thermochromic effect and the cost, the connecting material can better wrap and connect the thermochromic powder to enable the gloss to be better, the viscosity of the thermochromic ink is more moderate due to the solvent, the thermochromic ink is more suitable for coating, and the dispersion of the thermochromic powder is more uniform due to the dispersing agent.
Preferably, in the method for manufacturing the thermochromic thermal adhesive film, the particle size of the color-changing powder is 3-8 μm, the color-changing powder is color A at the temperature of less than 34 ℃, the color-changing powder is color B at the temperature of more than 38 ℃, the color-changing powder is a gradual change color from the color A to the color B at the temperature of 34-38 ℃, the binder is acrylic resin or alkyd resin, the solvent is one or more of 3, 5-trimethyl-2-cyclohexene-1-one, aromatic hydrocarbon solvent 1500 # isopropyl alcohol, ethylene glycol diethyl ether and benzyl alcohol, and the dispersing agent is one or more of fatty acid dispersing agents, aliphatic amide dispersing agents and ester dispersing agents.
The particle size of the color-changing powder is 3-8 mu m, and the color-changing powder is fine and uniform, so that the coating effect is finer and finer. The color A is blue, the color B is white, and the support layer is white, so that the thermochromic thermal paste film is blue at the temperature of less than 34 ℃, is gradually lighter at the temperature of 34-38 ℃ and is white at the temperature of more than 38 ℃. The binder is acrylic resin or alkyd resin, so that the color-changing powder can be better wrapped, the color development of the color-changing powder is improved, and the thermochromic thermal adhesive film has better glossiness. The solvent is designed to reduce the viscosity of the system. The design of the dispersing agent ensures that the color-changing powder is more uniformly dispersed.
Preferably, in the above method for manufacturing a thermochromic thermal adhesive film, in step S2, the thermochromic ink is coated on the surface layer in one or more of offset printing, silk screen printing, comma knife coating, and the thickness of the coated surface layer is 120 μm to 150 μm.
Fine offset printing, rich gradation, high coating and printing efficiency and good color development effect. The silk screen coating is even, can be according to the coating print pattern of demand. Comma knife coating is simple and convenient to operate, and the thickness is easy to control and adjust.
Preferably, in the above method for manufacturing thermochromic thermal adhesive film, in step S3, the weight ratio of the resin B to the white ink is 95-100: 5 to 10.
By the design, the support layer is white, so that a user can observe the color change of the thermochromic layer more conveniently.
Preferably, in the above method for manufacturing a thermochromic thermal adhesive film, the resin B is one or more of polyester, polyurethane, and acrylate.
The resin B has good film forming performance, wear resistance and chemical resistance, plays a role in protecting the thermochromic thermal adhesive film, improves the stability, and further enables the resin B to have better film forming performance and solvent resistance.
Preferably, in the above-mentioned method for manufacturing thermochromic thermal adhesive film, in step S5, the release PET substrate C is an organosilicon release PET or a fluoroplastic release PET.
The design can easily separate the thermochromic thermal adhesive film when in use, thereby improving the applicability.
Preferably, in the above method for manufacturing a thermochromic thermal adhesive film, the resin C is one or more of thermoplastic acrylic resin, polyester resin, and polyurethane resin.
The design ensures that the resin C has a lower softening point, and the thermochromic thermal paste can be tightly attached to the cloth base at the temperature of 70-150 ℃ and the pressure of 0.2-0.5 MPa for 5-10 s when in use, thereby improving the use experience.
Drawings
FIG. 1 is a cross-sectional view of a thermochromic thermal mount of the present invention;
FIG. 2 is a top view of the thermochromic thermal adhesive film of the present invention.
Detailed Description
The invention is described in further detail below in connection with figures 1-2 and the detailed description, which are not intended to limit the invention:
example 1
The manufacturing method of the thermochromic thermal paste film comprises a surface layer 1, a thermochromic layer 2, a supporting layer 3 and a hot melting layer 4, wherein the surface layer 1, the thermochromic layer 2, the supporting layer 3 and the hot melting layer 4 are sequentially connected, and the manufacturing method comprises the following steps:
s1: taking a PET substrate A, wherein the temperature resistance value of the PET substrate A is 200 ℃, the heat shrinkage rate is less than 1.5%, the thickness is 50 mu m, then taking resin A, stirring the resin A for 5min at the stirring speed of 500 rpm, coating the resin A on the PET substrate A through a comma scraper after stirring, and drying the PET substrate A in an oven at the drying temperature of 75 ℃ for 5min to obtain a surface layer 1;
s2: mixing and stirring the color-changing powder, the connecting material, the solvent and the dispersing agent for 3min at the stirring speed of 200 r/min to obtain thermochromic ink after stirring, coating the thermochromic ink on the surface layer 1, drying the surface layer 1 in an oven after coating, and obtaining a thermochromic layer 2 after drying, wherein the drying temperature is 100 ℃ and the drying time is 3 min;
s3: mixing and stirring resin B and white ink for 5min at a stirring speed of 800 r/min, obtaining a mixed solution after stirring, taking PET base material B, wherein the temperature resistance value of the PET base material B is 200 ℃, the thermal shrinkage rate is less than 1.5%, the thickness is 36 mu m, coating the mixed solution on the PET base material B through a comma scraper, drying the PET base material B in an oven at a drying temperature of 75 ℃ for 5min after coating, and obtaining a supporting layer 3 after drying;
s4: carrying out hot-pressing fancy compounding on the supporting layer 3 and the thermochromic layer 2 through an embossing machine, wherein the embossing temperature is 190 ℃, the embossing pressure is 0.2MPa, the embossing speed is 2m/min, and stripping the PET substrate B after compounding is finished to obtain a semi-finished thermal film;
s5: taking a release PET substrate C, wherein the temperature resistance value of the release PET substrate C is 200 ℃, the heat shrinkage rate is less than 1.5%, the thickness is 36 mu m, then taking resin C, stirring the resin C for 5min at a stirring speed of 800 revolutions per minute, coating the resin C on the release PET substrate C through a comma scraper, drying the release PET substrate C in an oven at a drying temperature of 75 ℃ for 5min, and drying to obtain a hot melt layer 4;
s6: and compounding the hot-melting layer 4 with the supporting layer 3 by a compounding roller, wherein the compounding temperature is 70 ℃, the compounding pressure is 0.15MPa, and the thermochromic thermal adhesive film is obtained after the compounding is completed.
Preferably, the resin A is one or more of polyurethane, polyester, acrylic acid and PVC.
Preferably, in step S2, the weight ratio of the color-changing powder, the binder, the solvent and the dispersant is 20:100:100:2.
preferably, the particle size of the color-changing powder is 3 mu m, the color-changing powder is color A at the temperature of less than 34 ℃, the color-changing powder is color B at the temperature of more than 38 ℃, the color-changing powder is a gradual change color from the color A to the color B at the temperature of 34-38 ℃, the binder is acrylic resin or alkyd resin, the solvent is one or more of 3, 5-trimethyl-2-cyclohexene-1-one, aromatic hydrocarbon solvent 1500 # isopropanol, ethylene glycol diethyl ether and benzyl alcohol, and the dispersing agent is one or more of fatty acid dispersing agents, aliphatic amide dispersing agents and ester dispersing agents.
Preferably, in step S2, the thermochromic ink is coated on the surface layer 1 in one or more of offset printing, silk screen printing, comma knife coating, and the thickness of the coated surface layer is 120 μm.
Preferably, in step S3, the weight ratio of the resin B to the white ink is 95:5.
preferably, the resin B is one or more of polyester, polyurethane and acrylic ester.
Preferably, in step S5, the release PET substrate C is silicone release PET or fluoroplastic release PET.
Preferably, the resin C is one or more of thermoplastic acrylic resin, polyester resin and polyurethane resin.
Example 2
The manufacturing method of the thermochromic thermal paste film comprises a surface layer 1, a thermochromic layer 2, a supporting layer 3 and a hot melting layer 4, wherein the surface layer 1, the thermochromic layer 2, the supporting layer 3 and the hot melting layer 4 are sequentially connected, and the manufacturing method comprises the following steps:
s1: taking a PET substrate A, wherein the temperature resistance value of the PET substrate A is 220 ℃, the heat shrinkage rate is less than 1.5%, the thickness is 100 mu m, then taking resin A, stirring the resin A for 10min at the stirring speed of 1000 revolutions per minute, coating the resin A on the PET substrate A through a comma scraper after stirring, and drying the PET substrate A in an oven at the drying temperature of 155 ℃ for 8min to obtain a surface layer 1;
s2: mixing and stirring the color-changing powder, the connecting material, the solvent and the dispersing agent for 5min at the stirring speed of 400 r/min to obtain thermochromic ink after stirring, coating the thermochromic ink on the surface layer 1, drying the surface layer 1 in an oven at the drying temperature of 120 ℃ for 5min after coating, and drying to obtain a thermochromic layer 2;
s3: mixing and stirring resin B and white ink for 10min at a stirring speed of 1000 r/min, obtaining a mixed solution after stirring, taking PET base material B, wherein the temperature resistance value of the PET base material B is 220 ℃, the thermal shrinkage rate is less than 1.5%, the thickness is 50 mu m, coating the mixed solution on the PET base material B through a comma scraper, drying the PET base material B in an oven at a drying temperature of 155 ℃ for 8min after coating, and obtaining a supporting layer 3 after drying;
s4: carrying out hot-pressing fancy compounding on the supporting layer 3 and the thermochromic layer 2 through an embossing machine, wherein the embossing temperature is 210 ℃, the embossing pressure is 0.3MPa, the embossing speed is 3m/min, and stripping the PET substrate B after compounding is finished to obtain a semi-finished thermal film;
s5: taking a release PET substrate C, wherein the temperature resistance value of the release PET substrate C is 220 ℃, the heat shrinkage rate is less than 1.5%, the thickness is 75 mu m, then taking resin C, stirring the resin C for 10min at a stirring speed of 1000 revolutions per minute, coating the resin C on the release PET substrate C through a comma scraper, drying the release PET substrate C in an oven at a drying temperature of 120 ℃ for 8min, and drying to obtain a hot melt layer 4;
s6: and compounding the hot-melting layer 4 with the supporting layer 3 by a compounding roller, wherein the compounding temperature is 90 ℃, the compounding pressure is 0.35MPa, and the thermochromic thermal adhesive film is obtained after the compounding is completed.
Preferably, the resin A is one or more of polyurethane, polyester, acrylic acid and PVC.
Preferably, in step S2, the weight ratio of the color-changing powder, the binder, the solvent and the dispersant is 30:120:150:4.
preferably, the particle size of the color-changing powder is 8 mu m, the color-changing powder is color A at the temperature of less than 34 ℃, the color-changing powder is color B at the temperature of more than 38 ℃, the color-changing powder is a gradual change color from the color A to the color B at the temperature of 34-38 ℃, the binder is acrylic resin or alkyd resin, the solvent is one or more of 3, 5-trimethyl-2-cyclohexene-1-one, aromatic hydrocarbon solvent 1500 # isopropanol, ethylene glycol diethyl ether and benzyl alcohol, and the dispersing agent is one or more of fatty acid dispersing agents, aliphatic amide dispersing agents and ester dispersing agents.
Preferably, in step S2, the thermochromic ink is coated on the surface layer 1 by one or more of offset printing, silk screen printing, comma knife coating, and the thickness of the coated ink is 150 μm.
Preferably, in step S3, the weight ratio of the resin B to the white ink is 100:10.
preferably, the resin B is one or more of polyester, polyurethane and acrylic ester.
Preferably, in step S5, the release PET substrate C is silicone release PET or fluoroplastic release PET.
Preferably, the resin C is one or more of thermoplastic acrylic resin, polyester resin and polyurethane resin.
Example 3
The manufacturing method of the thermochromic thermal paste film comprises a surface layer 1, a thermochromic layer 2, a supporting layer 3 and a hot melting layer 4, wherein the surface layer 1, the thermochromic layer 2, the supporting layer 3 and the hot melting layer 4 are sequentially connected, and the manufacturing method comprises the following steps:
s1: taking a PET substrate A, wherein the temperature resistance value of the PET substrate A is 210 ℃, the heat shrinkage rate is less than 1.5%, the thickness is 75 mu m, then taking resin A, stirring the resin A for 7.5min, the stirring speed is 750 rpm, coating the resin A on the PET substrate A through a comma scraper after stirring, drying the PET substrate A in an oven at the drying temperature of 115 ℃ for 6.5min, and obtaining a surface layer 1 after drying;
s2: mixing and stirring the color-changing powder, the connecting material, the solvent and the dispersing agent for 4min at the stirring speed of 300 r/min to obtain thermochromic ink after stirring, coating the thermochromic ink on the surface layer 1, drying the surface layer 1 in an oven after coating, and obtaining a thermochromic layer 2 after drying, wherein the drying temperature is 110 ℃ and the drying time is 4 min;
s3: mixing and stirring resin B and white ink for 7.5min at a stirring speed of 900 r/min, obtaining a mixed solution after stirring, taking a PET substrate B, wherein the temperature resistance value of the PET substrate B is 210 ℃, the thermal shrinkage rate is less than 1.5%, the thickness is 43 mu m, coating the mixed solution on the PET substrate B through a comma scraper, drying the PET substrate B in an oven at a drying temperature of 115 ℃ for 6.5min after coating, and obtaining a supporting layer 3 after drying;
s4: hot-pressing and fancy compounding the supporting layer 3 and the thermochromic layer 2 through an embossing machine, wherein the embossing temperature is 200 ℃, the embossing pressure is 0.25MPa, the embossing speed is 2.5m/min, and the PET substrate B is peeled after compounding is completed to obtain a semi-finished thermal film;
s5: taking a release PET substrate C, wherein the temperature resistance value of the release PET substrate C is 210 ℃, the heat shrinkage rate is less than 1.5%, the thickness is 55.5 mu m, then taking resin C, stirring the resin C for 7.5min, the stirring speed is 900 revolutions per minute, coating the resin C on the release PET substrate C through a comma scraper, and after the coating is finished, putting the release PET substrate C into a baking oven for drying, the drying temperature is 97.5 ℃, the drying time is 6.5min, and obtaining a hot melt layer 4 after drying;
s6: and compounding the hot-melting layer 4 with the supporting layer 3 by a compounding roller, wherein the compounding temperature is 80 ℃, the compounding pressure is 0.25MPa, and the thermochromic thermal adhesive film is obtained after the compounding is completed.
Preferably, the resin A is one or more of polyurethane, polyester, acrylic acid and PVC.
Preferably, in step S2, the weight ratio of the color-changing powder, the binder, the solvent and the dispersant is 25:110:125:3.
preferably, the particle size of the color-changing powder is 5.5 mu m, the color-changing powder is color A at the temperature of less than 34 ℃, the color-changing powder is color B at the temperature of more than 38 ℃, the color-changing powder is a gradual change color from the color A to the color B at the temperature of 34-38 ℃, the binder is acrylic resin or alkyd resin, the solvent is one or more of 3, 5-trimethyl-2-cyclohexene-1-one, aromatic hydrocarbon solvent No. 1500, isopropanol, glycol diethyl ether and benzyl alcohol, and the dispersing agent is one or more of fatty acid dispersing agent, aliphatic amide dispersing agent and ester dispersing agent.
Preferably, in step S2, the thermochromic ink is coated on the surface layer 1 by one or more of offset printing, silk screen printing, comma knife coating, and the thickness of the coated surface layer is 135 μm.
Preferably, in step S3, the weight ratio of the resin B to the white ink is 97.5:7.5.
preferably, the resin B is one or more of polyester, polyurethane and acrylic ester.
Preferably, in step S5, the release PET substrate C is silicone release PET or fluoroplastic release PET.
Preferably, the resin C is one or more of thermoplastic acrylic resin, polyester resin and polyurethane resin.
In summary, the foregoing description is only of the preferred embodiments of the present invention, and all equivalent changes and modifications that come within the scope of the present invention are desired to be covered thereby.
Claims (7)
1. A method for manufacturing a thermochromic thermal paste film is characterized by comprising the following steps of: the manufacturing method comprises the following steps of:
s1: taking a PET substrate A, wherein the temperature resistance value of the PET substrate A is 200-220 ℃, the heat shrinkage rate is less than 1.5%, the thickness is 50-100 mu m, then taking resin A, stirring the resin A for 5-10 min at the stirring speed of 500-1000 rpm, coating the resin A on the PET substrate A through a comma scraper after stirring, and drying the PET substrate A in an oven at the drying temperature of 75-155 ℃ for 5-8 min to obtain a surface layer (1);
s2: taking color-changing powder, a connecting material, a solvent and a dispersing agent, wherein the weight ratio of the color-changing powder to the connecting material to the solvent to the dispersing agent is 20-30: 100-120: 100-150: 2-4, wherein the particle size of the color-changing powder is 3-8 mu m, the color-changing powder is color A at the temperature lower than 34 ℃, the color-changing powder is color B at the temperature higher than 38 ℃, the color-changing powder is gradually changed from color A to color B at the temperature between 34 and 38 ℃, the binder is acrylic resin or alkyd resin, the solvent is one or more of 3, 5-trimethyl-2-cyclohexene-1-one, aromatic hydrocarbon solvent 1500 # isopropyl alcohol, ethylene glycol diethyl ether and benzyl alcohol, the dispersing agent is one or more of fatty acid dispersing agent, aliphatic amide dispersing agent and ester dispersing agent, the mixing and stirring are carried out for 3-5 min, the stirring speed is 200-400 r/min, the temperature-sensitive color-changing ink is obtained after the stirring is completed, the temperature-sensitive ink is coated on the surface layer (1), the surface layer (1) is dried in an oven at the drying temperature between 100 and 120 ℃ for 3-5 min, and the temperature-sensitive layer (2) is obtained after the drying;
s3: mixing and stirring resin B and white ink for 5-10 min at 800-1000 rpm to obtain mixed solution, taking PET base material B with temperature resistance of 200-220 deg.C, heat shrinkage of less than 1.5% and thickness of 36-50 μm, coating the mixed solution on the PET base material B with comma scraper, drying the PET base material B in an oven at 75-155 deg.C for 5-8 min to obtain support layer (3);
s4: the supporting layer (3) is compounded with the thermochromic layer (2) through an embossing machine in a hot-pressing fashion, the embossing temperature is 190-210 ℃, the embossing pressure is 0.2-0.3 MPa, the embossing speed is 2-3 m/min, and the PET substrate B is peeled after the compounding is completed, so that a semi-finished thermal film is obtained;
s5: taking a release PET substrate C, wherein the temperature resistance value of the release PET substrate C is 200-220 ℃, the heat shrinkage rate is less than 1.5%, the thickness is 36-75 mu m, then taking resin C, stirring the resin C for 5-10 min, the stirring speed is 800-1000 rpm, coating the resin C on the release PET substrate C through a comma scraper, and after the coating is finished, putting the release PET substrate C into an oven for drying, the drying temperature is 75-120 ℃, the drying time is 5-8 min, and obtaining a hot melt layer (4) after drying;
s6: and compounding the hot melting layer (4) with the supporting layer (3) through a compounding roller, wherein the compounding temperature is 70-90 ℃, the compounding pressure is 0.15-0.35 MPa, and the thermochromic thermal adhesive film is obtained after compounding.
2. The method for manufacturing the thermochromic thermal paste film according to claim 1, wherein the method comprises the following steps: the resin A is one or more of polyurethane, polyester, acrylic acid and PVC.
3. The method for manufacturing the thermochromic thermal paste film according to claim 1, wherein the method comprises the following steps: in the step S2, the thermochromic ink is coated on the surface layer (1), wherein the coating mode is one or more of offset printing, silk screen printing and comma knife coating, and the thickness of the thermochromic ink during coating is 120-150 mu m.
4. The method for manufacturing the thermochromic thermal paste film according to claim 1, wherein the method comprises the following steps: in the step S3, the weight ratio of the resin B to the white ink is 95-100: 5 to 10.
5. The method for manufacturing the thermochromic thermal paste film according to claim 1, wherein the method comprises the following steps: the resin B is one or more of polyester, polyurethane and acrylic ester.
6. The method for manufacturing the thermochromic thermal paste film according to claim 1, wherein the method comprises the following steps: in step S5, the release PET substrate C is an organosilicon release PET or a fluoroplastic release PET.
7. The method for manufacturing the thermochromic thermal paste film according to claim 1, wherein the method comprises the following steps: the resin C is one or more of thermoplastic acrylic resin, polyester resin and polyurethane resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211270364.2A CN115637114B (en) | 2022-10-18 | 2022-10-18 | Manufacturing method of thermochromic thermal adhesive film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211270364.2A CN115637114B (en) | 2022-10-18 | 2022-10-18 | Manufacturing method of thermochromic thermal adhesive film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115637114A CN115637114A (en) | 2023-01-24 |
| CN115637114B true CN115637114B (en) | 2024-03-19 |
Family
ID=84944175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211270364.2A Active CN115637114B (en) | 2022-10-18 | 2022-10-18 | Manufacturing method of thermochromic thermal adhesive film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115637114B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104050870A (en) * | 2014-06-18 | 2014-09-17 | 上海申永烫金材料有限公司 | Method for manufacturing temperature-controlled label |
-
2022
- 2022-10-18 CN CN202211270364.2A patent/CN115637114B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104050870A (en) * | 2014-06-18 | 2014-09-17 | 上海申永烫金材料有限公司 | Method for manufacturing temperature-controlled label |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115637114A (en) | 2023-01-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102179984B (en) | Thermal-transfer coloured crystal glass and preparation method thereof | |
| CN107604685A (en) | A kind of preparation method of high temperature resistant color inhibition no-solvent polyurethane synthetic leather | |
| CN110654154A (en) | Positioning gold stamping method for digital thermal transfer printing fabric | |
| CN115637114B (en) | Manufacturing method of thermochromic thermal adhesive film | |
| CN102161285B (en) | Thermal transfer coating film and preparation method thereof | |
| CN106833115A (en) | A kind of in-mold decoration ink for screen printing and preparation method thereof | |
| CN217227167U (en) | Multipurpose hot stamping foil structure | |
| CN110091637A (en) | Heat transfer film and its production method in a kind of mould of elastic toy ball | |
| CN112060796B (en) | Multifunctional cold transfer gold stamping film and manufacturing process thereof | |
| CN109440485A (en) | A kind of heat discoloration leather and its production method and purposes | |
| CN202062829U (en) | Heat transfer printing colored crystal glass | |
| KR101656641B1 (en) | Method of preparing Thermoplastic Polyurethane film with patterns | |
| CN109823074A (en) | A kind of colorful thermal transfer pearl film and preparation method thereof | |
| CN109280433B (en) | Pigment foil coating | |
| JPS58114987A (en) | Transfer sheet | |
| CN115701386A (en) | Preparation method of bright digital ink-jet printing thermal transfer printing film | |
| CN114308588A (en) | Preparation method and application of water-based solvent-free polyurethane/PC (polycarbonate) film composite material | |
| CN113263850A (en) | Latex ink digital printing film material for improving washing fading phenomenon and preparation method thereof | |
| CN112918142A (en) | Heat transfer trademark mark capable of customizing patterns in personalized mode, trademark mark product and manufacturing process of trademark mark product | |
| CN115806774B (en) | Dark color electrochemical aluminum suitable for high-speed thermoprinting and preparation method thereof | |
| CN110722911A (en) | Hot stamping film for digital printer and preparation method thereof | |
| CN109266235A (en) | A kind of type IMD film and preparation method thereof with wood grain | |
| CN105295818B (en) | It is a kind of for adhesive of in-mould injection and preparation method thereof | |
| CN114851758A (en) | Multipurpose hot stamping foil structure and preparation method thereof | |
| CN115157895B (en) | Color ribbon and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |