CN111319183A - Manufacturing process of automobile label with double-color gradually-changed effect - Google Patents
Manufacturing process of automobile label with double-color gradually-changed effect Download PDFInfo
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- CN111319183A CN111319183A CN201911379165.3A CN201911379165A CN111319183A CN 111319183 A CN111319183 A CN 111319183A CN 201911379165 A CN201911379165 A CN 201911379165A CN 111319183 A CN111319183 A CN 111319183A
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- 230000000694 effects Effects 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 70
- 238000007650 screen-printing Methods 0.000 claims abstract description 70
- 239000000758 substrate Substances 0.000 claims abstract description 51
- 239000003973 paint Substances 0.000 claims abstract description 44
- 238000007747 plating Methods 0.000 claims abstract description 30
- 238000001746 injection moulding Methods 0.000 claims abstract description 29
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 238000007639 printing Methods 0.000 claims abstract description 22
- 239000011241 protective layer Substances 0.000 claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 74
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 238000001704 evaporation Methods 0.000 claims description 21
- 230000008020 evaporation Effects 0.000 claims description 21
- 230000003068 static effect Effects 0.000 claims description 21
- 239000000243 solution Substances 0.000 claims description 19
- 238000004140 cleaning Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000012780 transparent material Substances 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 11
- 239000011247 coating layer Substances 0.000 claims description 10
- 238000001771 vacuum deposition Methods 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 7
- 238000011068 loading method Methods 0.000 claims description 7
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 7
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000002519 antifouling agent Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 238000000151 deposition Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000009713 electroplating Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C2037/80—Identifying, e.g. coding, dating, marking, numbering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C2045/0079—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping applying a coating or covering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2795/00—Printing on articles made from plastics or substances in a plastic state
- B29C2795/007—Printing on articles made from plastics or substances in a plastic state after shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
- B29K2033/04—Polymers of esters
- B29K2033/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/744—Labels, badges, e.g. marker sleeves
Abstract
The invention discloses a manufacturing process of an automobile label with a double-color gradient effect, which comprises seven steps of injection molding, base material pretreatment, vacuum electroplating, plating resistance, deplating, primary screen printing, secondary screen printing and contrast paint spraying. Meanwhile, on the basis of primary screen printing, the color-changing material is printed on the base material in a screen printing mode through secondary screen printing, and double color changing is achieved. Specifically, a reflective coating protective layer is printed on the back part of the substrate in a screen printing mode, ink of one color is printed on the reflective coating protective layer, and after printing is finished, the reflective coating protective layer is sent into an electrothermal dryer and dried for 55-65min at the temperature of 50-55 ℃. The preparation process method disclosed by the invention is simple and simple, the preparation process is efficient, and the automobile label can realize a two-color gradient effect for a long time.
Description
Technical Field
The invention relates to the field of automobile label manufacturing devices, in particular to an automobile label manufacturing process with a double-color gradually-changed effect.
Background
Automotive signs are signs used to identify automotive vehicles, for hanging on automotive vehicles.
With the development of technology, especially the development of automobile manufacturing, most of the current automobile labels are made by adopting processes such as water electroplating or paint spraying. The automobile label manufactured by the process is monotonous in color and dull in color. Because the automobile sign disclosed in the prior art can not change color, the automobile sign is monotonous, and the diversified demands of consumers can not be met.
Disclosure of Invention
The invention aims to provide a manufacturing process of an automobile label with a two-color gradient effect.
The invention solves the technical problems through the following technical scheme:
a manufacturing process of an automobile label with double-color gradient effect comprises the following steps:
step 1, injection molding and base material pretreatment:
selecting transparent materials, heating to 230 +/-10 ℃ by using an injection molding machine, heating a mold to 75-85 ℃, baking for 2 hours at the temperature of 80 ℃ after injection molding is finished, hanging a base material on a workpiece frame of vacuum equipment, and removing dust and static electricity;
step 2, vacuum plating:
loading the evaporation wire, vacuumizing, starting a power supply after the vacuum degree reaches 8 × 10-3Pa, controlling the voltage of 5 +/-0.5V and the time of 10 +/-1 s in the first stage, cleaning impurities on the surface of the product, controlling the voltage of 6 +/-0.5V and the time of 6 +/-1 s in the second stage to melt the evaporation wire, and subliming the evaporation wire into a gas state and depositing the gas state on the surface of the substrate when the voltage of 7 +/-0.5V and the time of 6 +/-1 s in the third stage;
step 3, plating resistance:
coating a plating resistant paint on the pattern to be reserved of the vacuum plating layer, wherein the film thickness is 15-25 mu m; baking at 65 + -5 deg.C for more than 2 hr;
step 4, deplating:
immersing the base material into the deplating bath solution, taking out and cleaning after deplating is finished;
step 5, primary silk-screen printing:
screen printing is carried out on the back surface of the substrate in partial areas, and the substrate is baked for 30min at 60 ℃ after the screen printing is finished;
step 6, secondary silk-screen printing:
putting the base material subjected to the primary screen printing in the step 5 into a semi-automatic screen printing machine, printing a reflective coating protective layer on the back surface part of the base material in a screen printing mode, printing ink of one color on the reflective coating protective layer, and after printing, sending the base material into an electrothermal dryer, and drying for 55-65min at the temperature of 50-55 ℃;
step 7, spraying contrast paint: spraying a contrast paint layer on the whole area of the back of the substrate;
a contrast paint layer with the thickness of 10-15 microns, a silk-screen printing layer with the thickness of 10-15 microns, a vacuum coating layer opposite to the contrast paint layer and the silk-screen printing layer and a transparent substrate layer are sequentially arranged from the back side to the front side of the substrate, and the intersection of the front side and the side surface of the substrate is in smooth transition.
Preferably, the thickness of the substrate layer is 4-6 mm.
Preferably, the transparent material for injection molding is PMMA.
Preferably, the component of the deplating bath solution in the step 3 is NaOH, and the soaking time is 10 min.
Preferably, in the step 1, an electrostatic gun is adopted for static electricity removal and dust removal, the air pressure of the electrostatic gun is 0.6-0.8Mpa, the distance between the gun head and the base material is 10-15cm, the transport speed is 10-15cm/s, and the operation is repeated for 2-3 times along the base material.
Preferably, the screen printed layer is black and the contrast paint layer is red.
Preferably, the drying temperature in step 6 is 52 ℃ and the drying time is 60 min.
Preferably, the back of the substrate is integrally sprayed with a silver protective paint layer after step 7, and the thickness of the silver protective paint layer is 10-15 μm.
Compared with the prior art, the invention has the following advantages:
the invention discloses a manufacturing process of an automobile label with a double-color gradient effect, which is successfully prepared through injection molding, base material pretreatment, vacuum electroplating, plating resistance, deplating, primary silk-screen printing, secondary silk-screen printing and contrast paint spraying to manufacture the automobile label with the double-color gradient effect. The preparation process method disclosed by the invention is simple and simple, the preparation process is efficient, and the automobile label can realize a two-color gradient effect for a long time.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
Example 1
A manufacturing process of an automobile label with double-color gradient effect comprises the following steps:
step 1, injection molding and base material pretreatment:
selecting a transparent material (PMMA is used as the transparent material for injection molding), heating an injection molding machine to 230 ℃, heating a mold to 75 ℃, baking for 2 hours at the temperature of 80 ℃ after injection molding is finished, hanging a base material (the thickness of a base material layer is 6 mm) on a workpiece frame of vacuum equipment, and removing dust and static electricity; static gun is adopted to remove static electricity and dust, the air pressure of the static gun is 0.6-0.8Mpa, the distance between the gun head and the base material is 15cm, the transport speed is 15cm/s, and the static gun reciprocates 2 times along the base material
Step 2, vacuum plating:
loading into evaporation wire, vacuumizing to 8 × 10-3After Pa, turning on a power supply, controlling the voltage of a first stage to be 5 +/-0.5V and the time to be 10 +/-1 s, and cleaning impurities on the surface of the product; in the second stage, the voltage is controlled to be 6 +/-0.5V, and the time is 6 +/-1 s, so that the evaporation wire is melted; in the third stage, the voltage is 7 +/-0.5V, the time is 6 +/-1 s, and the evaporation wire is sublimated into a gas state and is deposited on the surface of the base material;
step 3, plating resistance:
coating a plating resistant paint on the pattern to be reserved of the vacuum plating layer, wherein the film thickness is 25 mu m; baking at 65 deg.C for more than 2 hr;
step 4, deplating:
soaking the base material in deplating bath solution (the deplating bath solution is NaOH solution) for 10min, and taking out and cleaning after deplating is finished;
step 5, primary silk-screen printing:
silk-screen printing (the silk-screen printing layer is black) is carried out on partial area of the back surface of the substrate, and the substrate is baked for 30min at 60 ℃ after the silk-screen printing is finished;
step 6, secondary silk-screen printing:
putting the base material subjected to the primary screen printing in the step 5 into a semi-automatic screen printing machine, printing a reflective coating protective layer on the back surface part of the base material in a screen printing mode, printing ink of one color on the reflective coating protective layer, sending the base material into an electric heating dryer after printing, and drying for 60min at the temperature of 52 ℃;
step 7, spraying contrast paint: spraying a contrast paint layer (the contrast paint layer is red) on the whole area of the back surface of the substrate;
the contrast paint layer with the thickness of 15 microns, the silk screen printing layer with the thickness of 15 microns, the vacuum coating layer and the transparent substrate layer which are opposite to the contrast paint layer and the silk screen printing layer are sequentially arranged from the back side of the substrate to one side of the front side, and the intersection of the front side and the side surface of the substrate is in smooth transition.
Example 2
A manufacturing process of an automobile label with double-color gradient effect comprises the following steps:
step 1, injection molding and base material pretreatment:
selecting a transparent material (PMMA is used as the transparent material for injection molding), heating an injection molding machine to 240 ℃, heating a mold to 85 ℃, baking for 2 hours at the temperature of 80 ℃ after injection molding is finished, hanging a base material (the thickness of a base material layer is 4 mm) on a workpiece frame of vacuum equipment, and removing dust and static electricity; removing static electricity and dust by using an electrostatic gun, wherein the air pressure of the electrostatic gun is 0.6Mpa, the distance between the gun head and the base material is 15cm, the transport speed is 10cm/s, and the electrostatic gun reciprocates 3 times along the base material
Step 2, vacuum plating:
loading into evaporation wire, vacuumizing to 8 × 10-3After Pa, turning on a power supply, controlling the voltage of a first stage to be 5 +/-0.5V and the time to be 10 +/-1 s, and cleaning impurities on the surface of the product; in the second stage, the voltage is controlled to be 6 +/-0.5V, and the time is 6 +/-1 s, so that the evaporation wire is melted; in the third stage, the voltage is 7 +/-0.5V, the time is 6 +/-1 s, and the evaporation wire is sublimated into a gas state and is deposited on the surface of the base material;
step 3, plating resistance:
coating a plating resistant paint on the pattern to be reserved of the vacuum plating layer, wherein the film thickness is 25 mu m; baking at 70 deg.C for more than 2 hr;
step 4, deplating:
soaking the base material in deplating bath solution (the deplating bath solution is NaOH solution) for 10min, and taking out and cleaning after deplating is finished;
step 5, primary silk-screen printing:
silk-screen printing (the silk-screen printing layer is black) is carried out on partial area of the back surface of the substrate, and the substrate is baked for 30min at 60 ℃ after the silk-screen printing is finished;
step 6, secondary silk-screen printing:
putting the base material subjected to the primary screen printing in the step 5 into a semi-automatic screen printing machine, printing a reflective coating protective layer on the back surface part of the base material in a screen printing mode, printing ink of one color on the reflective coating protective layer, sending the base material into an electrothermal dryer after printing, and drying for 65min at the temperature of 55 ℃;
step 7, spraying contrast paint: spraying a contrast paint layer (the contrast paint layer is red) on the whole area of the back surface of the substrate;
the composite coating comprises a contrast paint layer with the thickness of 14 micrometers, a silk-screen layer with the thickness of 15 micrometers, a vacuum coating layer and a transparent substrate layer, wherein the contrast paint layer and the silk-screen layer are opposite to each other, and the intersection of the front side and the side surface of the substrate is in smooth transition.
Example 3
A manufacturing process of an automobile label with double-color gradient effect comprises the following steps:
step 1, injection molding and base material pretreatment:
selecting a transparent material (PMMA is used as the transparent material for injection molding), heating an injection molding machine to 235 ℃, heating a mold to 80 ℃, baking for 2 hours at the temperature of 80 ℃ after injection molding is finished, hanging a base material (the thickness of a base material layer is 5mm) on a workpiece frame of vacuum equipment, and removing dust and static electricity; static removing and dedusting with static gun with pressure of 0.6Mpa, distance between the gun head and the base material of 12cm, transport speed of 12cm/s, reciprocating for 2 times along the base material
Step 2, vacuum plating:
loading into evaporation wire, vacuumizing to 8 × 10-3After Pa, turning on a power supply, controlling the voltage of a first stage to be 5 +/-0.5V and the time to be 10 +/-1 s, and cleaning impurities on the surface of the product; the voltage of the second stage is controlled at 6 +/-0.5V for 6 +/-1 s, so that the evaporation wire is meltedMelting; in the third stage, the voltage is 7 +/-0.5V, the time is 6 +/-1 s, and the evaporation wire is sublimated into a gas state and is deposited on the surface of the base material;
step 3, plating resistance:
coating a plating resistant paint on the pattern to be reserved of the vacuum plating layer, wherein the film thickness is 25 mu m; baking at 62 deg.C for more than 2 h;
step 4, deplating:
soaking the base material in deplating bath solution (the deplating bath solution is NaOH solution) for 10min, and taking out and cleaning after deplating is finished;
step 5, primary silk-screen printing:
silk-screen printing (the silk-screen printing layer is black) is carried out on partial area of the back surface of the substrate, and the substrate is baked for 30min at 60 ℃ after the silk-screen printing is finished;
step 6, secondary silk-screen printing:
putting the base material subjected to the primary screen printing in the step 5 into a semi-automatic screen printing machine, printing a reflective coating protective layer on the back surface part of the base material in a screen printing mode, printing ink of one color on the reflective coating protective layer, sending the base material into an electrothermal dryer after printing, and drying for 55min at the temperature of 50 ℃;
step 7, spraying contrast paint: spraying a contrast paint layer (the contrast paint layer is red) on the whole area of the back surface of the substrate;
the composite coating comprises a contrast paint layer with the thickness of 14 micrometers, a silk-screen layer with the thickness of 14 micrometers, a vacuum coating layer and a transparent substrate layer, wherein the vacuum coating layer and the transparent substrate layer are sequentially arranged from the back side to the front side of the substrate, the vacuum coating layer and the transparent substrate layer are opposite to the contrast paint layer and the silk-screen layer, and the intersection of the front side and the side surface of the substrate is in smooth transition.
Example 4
A manufacturing process of an automobile label with double-color gradient effect comprises the following steps:
step 1, injection molding and base material pretreatment:
selecting a transparent material (PMMA is used as the transparent material for injection molding), heating an injection molding machine to 240 ℃, heating a mold to 83 ℃, baking for 2 hours at the temperature of 80 ℃ after injection molding is finished, hanging a base material (the thickness of a base material layer is 5mm) on a workpiece frame of vacuum equipment, and removing dust and static electricity; static gun is adopted to remove static electricity and dust, the air pressure of the static gun is 0.6-0.8Mpa, the distance between the gun head and the base material is 12cm, the transport speed is 13cm/s, and the static gun reciprocates 2-3 times along the base material
Step 2, vacuum plating:
loading into evaporation wire, vacuumizing to 8 × 10-3After Pa, turning on a power supply, controlling the voltage of a first stage to be 5 +/-0.5V and the time to be 10 +/-1 s, and cleaning impurities on the surface of the product; in the second stage, the voltage is controlled to be 6 +/-0.5V, and the time is 6 +/-1 s, so that the evaporation wire is melted; in the third stage, the voltage is 7 +/-0.5V, the time is 6 +/-1 s, and the evaporation wire is sublimated into a gas state and is deposited on the surface of the base material;
step 3, plating resistance:
coating a plating resistant paint on the pattern to be reserved on the vacuum plating layer, wherein the film thickness is 20 mu m; baking at 64 deg.C for more than 2 hr;
step 4, deplating:
soaking the base material in deplating bath solution (the deplating bath solution is NaOH solution) for 10min, and taking out and cleaning after deplating is finished;
step 5, primary silk-screen printing:
silk-screen printing (the silk-screen printing layer is black) is carried out on partial area of the back surface of the substrate, and the substrate is baked for 30min at 60 ℃ after the silk-screen printing is finished;
step 6, secondary silk-screen printing:
putting the base material subjected to the primary screen printing in the step 5 into a semi-automatic screen printing machine, printing a reflective coating protective layer on the back surface part of the base material in a screen printing mode, printing ink of one color on the reflective coating protective layer, sending the base material into an electrothermal dryer after printing, and drying for 55min at the temperature of 53 ℃;
step 7, spraying contrast paint: spraying a contrast paint layer (the contrast paint layer is red) on the whole area of the back surface of the substrate;
the contrast paint layer with the thickness of 15 microns, the silk screen printing layer with the thickness of 15 microns, the vacuum coating layer and the transparent substrate layer which are opposite to the contrast paint layer and the silk screen printing layer are sequentially arranged from the back side of the substrate to one side of the front side, and the intersection of the front side and the side surface of the substrate is in smooth transition.
Example 5
A manufacturing process of an automobile label with double-color gradient effect comprises the following steps:
step 1, injection molding and base material pretreatment:
selecting a transparent material (PMMA is used as the transparent material for injection molding), heating an injection molding machine to 235 ℃, heating a mold to 78 ℃, baking for 2 hours at the temperature of 80 ℃ after injection molding is finished, hanging a base material (the thickness of a base material layer is 4 mm) on a workpiece frame of vacuum equipment, and removing dust and static electricity; removing static electricity and dust by using an electrostatic gun, wherein the air pressure of the electrostatic gun is 0.7Mpa, the distance between the gun head and the base material is 10cm, the transport speed is 10cm/s, and the electrostatic gun reciprocates 3 times along the base material
Step 2, vacuum plating:
loading into evaporation wire, vacuumizing to 8 × 10-3After Pa, turning on a power supply, controlling the voltage of a first stage to be 5 +/-0.5V and the time to be 10 +/-1 s, and cleaning impurities on the surface of the product; in the second stage, the voltage is controlled to be 6 +/-0.5V, and the time is 6 +/-1 s, so that the evaporation wire is melted; in the third stage, the voltage is 7 +/-0.5V, the time is 6 +/-1 s, and the evaporation wire is sublimated into a gas state and is deposited on the surface of the base material;
step 3, plating resistance:
coating a plating resistant paint on the pattern to be reserved of the vacuum plating layer, wherein the film thickness is 15 mu m; baking at 70 deg.C for more than 2 hr;
step 4, deplating:
soaking the base material in deplating bath solution (the deplating bath solution is NaOH solution) for 10min, and taking out and cleaning after deplating is finished;
step 5, primary silk-screen printing:
silk-screen printing (the silk-screen printing layer is black) is carried out on partial area of the back surface of the substrate, and the substrate is baked for 30min at 60 ℃ after the silk-screen printing is finished;
step 6, secondary silk-screen printing:
putting the base material subjected to the primary screen printing in the step 5 into a semi-automatic screen printing machine, printing a reflective coating protective layer on the back surface part of the base material in a screen printing mode, printing ink of one color on the reflective coating protective layer, sending the base material into an electrothermal dryer after printing, and drying for 65min at the temperature of 55 ℃;
step 7, spraying contrast paint: spraying a contrast paint layer (the contrast paint layer is red) on the whole area of the back surface of the substrate;
the composite coating comprises a contrast paint layer with the thickness of 10 micrometers, a silk-screen layer with the thickness of 10 micrometers, a vacuum coating layer and a transparent substrate layer, wherein the vacuum coating layer and the transparent substrate layer are sequentially arranged from the back side of the substrate to one side of the front side of the substrate, and the intersection of the front side and the side surface of the substrate is in smooth transition.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A manufacturing process of an automobile label with a two-color gradual change effect is characterized by comprising the following steps:
step 1, injection molding and base material pretreatment:
selecting transparent materials, heating to 230 +/-10 ℃ by using an injection molding machine, heating a mold to 75-85 ℃, baking for 2 hours at the temperature of 80 ℃ after injection molding is finished, hanging a base material on a workpiece frame of vacuum equipment, and removing dust and static electricity;
step 2, vacuum plating:
loading the evaporation wire, vacuumizing, starting a power supply after the vacuum degree reaches 8 × 10-3Pa, controlling the voltage of 5 +/-0.5V and the time of 10 +/-1 s in the first stage, cleaning impurities on the surface of the product, controlling the voltage of 6 +/-0.5V and the time of 6 +/-1 s in the second stage to melt the evaporation wire, and subliming the evaporation wire into a gas state and depositing the gas state on the surface of the substrate when the voltage of 7 +/-0.5V and the time of 6 +/-1 s in the third stage;
step 3, plating resistance:
coating a plating resistant paint on the pattern to be reserved of the vacuum plating layer, wherein the film thickness is 15-25 mu m; baking at 65 + -5 deg.C for more than 2 hr;
step 4, deplating:
immersing the base material into the deplating bath solution, taking out and cleaning after deplating is finished;
step 5, primary silk-screen printing:
screen printing is carried out on the back surface of the substrate in partial areas, and the substrate is baked for 30min at 60 ℃ after the screen printing is finished;
step 6, secondary silk-screen printing:
putting the base material subjected to the primary screen printing in the step 5 into a semi-automatic screen printing machine, printing a reflective coating protective layer on the back surface part of the base material in a screen printing mode, printing ink of one color on the reflective coating protective layer, and after printing, sending the base material into an electrothermal dryer, and drying for 55-65min at the temperature of 50-55 ℃;
step 7, spraying contrast paint: spraying a contrast paint layer on the whole area of the back of the substrate;
a contrast paint layer with the thickness of 10-15 microns, a silk-screen printing layer with the thickness of 10-15 microns, a vacuum coating layer opposite to the contrast paint layer and the silk-screen printing layer and a transparent substrate layer are sequentially arranged from the back side to the front side of the substrate, and the intersection of the front side and the side surface of the substrate is in smooth transition.
2. The process for manufacturing an automobile placard with a two-color gradation effect as described in claim 1, wherein the thickness of the base layer is 4 to 6 mm.
3. The process for manufacturing an automotive signage having a two-color gradation effect according to claim 1, wherein the injection-molded transparent material is PMMA.
4. The manufacturing process of the automobile scutcheon with two-color gradually-changed effect according to claim 1, wherein the component of the deplating bath solution in the step 3 is NaOH, and the soaking time is 10 min.
5. The manufacturing process of the automobile label with the two-color gradually-changed effect according to claim 1, wherein an electrostatic gun is adopted for static electricity removal and dust removal in the step 1, the air pressure of the electrostatic gun is 0.6-0.8Mpa, the distance between a gun head and the base material is 10-15cm, the conveying speed is 10-15cm/s, and the process is repeated for 2-3 times along the base material.
6. The process for manufacturing an automotive signage with a two-color gradient effect as in claim 1, wherein the silk-screen layer is black and the contrast paint layer is red.
7. The manufacturing process of the automobile signboard with the two-color gradually-changed effect according to the claim 1, wherein the drying temperature in the step 6 is 52 ℃ and the drying time is 60 min.
8. The process for manufacturing an automobile signboard with two-color gradation effect according to claim 1, wherein the silver protective paint layer is integrally sprayed on the back surface of the substrate in the step 7, and the thickness is 10-15 μm.
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| JPH01244918A (en) * | 1988-03-25 | 1989-09-29 | Hashimoto Forming Ind Co Ltd | Manufacture of window in vehicle |
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