CN111617945A - Preparation process of thermal transfer printing type wood grain-like iron door sill - Google Patents
Preparation process of thermal transfer printing type wood grain-like iron door sill Download PDFInfo
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- CN111617945A CN111617945A CN202010422324.XA CN202010422324A CN111617945A CN 111617945 A CN111617945 A CN 111617945A CN 202010422324 A CN202010422324 A CN 202010422324A CN 111617945 A CN111617945 A CN 111617945A
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- thermal transfer
- iron
- wood grain
- parts
- type wood
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 35
- 238000010023 transfer printing Methods 0.000 title claims abstract description 26
- 239000002023 wood Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract description 79
- 238000012546 transfer Methods 0.000 claims abstract description 68
- 239000004033 plastic Substances 0.000 claims abstract description 59
- 229920003023 plastic Polymers 0.000 claims abstract description 59
- 239000011248 coating agent Substances 0.000 claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 31
- 239000000853 adhesive Substances 0.000 claims abstract description 27
- 230000001070 adhesive effect Effects 0.000 claims abstract description 27
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 13
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000005498 polishing Methods 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims description 20
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 16
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 16
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 claims description 16
- 238000002791 soaking Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 150000004702 methyl esters Chemical class 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 14
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 10
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 244000028419 Styrax benzoin Species 0.000 claims description 8
- 235000000126 Styrax benzoin Nutrition 0.000 claims description 8
- 235000008411 Sumatra benzointree Nutrition 0.000 claims description 8
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 claims description 8
- 229960002130 benzoin Drugs 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 235000019382 gum benzoic Nutrition 0.000 claims description 8
- 229920005906 polyester polyol Polymers 0.000 claims description 8
- 239000004408 titanium dioxide Substances 0.000 claims description 8
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 6
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 5
- ATVJXMYDOSMEPO-UHFFFAOYSA-N 3-prop-2-enoxyprop-1-ene Chemical compound C=CCOCC=C ATVJXMYDOSMEPO-UHFFFAOYSA-N 0.000 claims description 5
- 239000003431 cross linking reagent Substances 0.000 claims description 4
- 239000000049 pigment Substances 0.000 claims description 4
- 229920002873 Polyethylenimine Polymers 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims 1
- 235000013799 ultramarine blue Nutrition 0.000 claims 1
- 239000000047 product Substances 0.000 description 41
- 238000005406 washing Methods 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 238000002156 mixing Methods 0.000 description 12
- 238000003756 stirring Methods 0.000 description 12
- 238000005303 weighing Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 238000012545 processing Methods 0.000 description 10
- 239000011521 glass Substances 0.000 description 9
- 230000001788 irregular Effects 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 7
- 238000007590 electrostatic spraying Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000011449 brick Substances 0.000 description 5
- 235000000396 iron Nutrition 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000005034 decoration Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- -1 propylene oxide propylene ether Chemical compound 0.000 description 3
- 238000000859 sublimation Methods 0.000 description 3
- 230000008022 sublimation Effects 0.000 description 3
- MTEZSDOQASFMDI-UHFFFAOYSA-N 1-trimethoxysilylpropan-1-ol Chemical compound CCC(O)[Si](OC)(OC)OC MTEZSDOQASFMDI-UHFFFAOYSA-N 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011464 hollow brick Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002120 nanofilm Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
- B05D1/06—Applying particulate materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/007—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/146—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies to metallic pipes or tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a preparation process of a thermal transfer printing type wood grain-like iron door sill, which comprises the following steps: s1, after welding the pipe fitting, pretreating the pipe fitting by using a phosphating coating agent, drying and polishing to obtain a pretreated part; s2, electrostatically spraying plastic powder on the surface of the pretreatment part, solidifying at 195-minus 205 ℃, and cooling to form a thermoplastic coating to obtain a plastic spraying treatment part; s3, adhering the thermal transfer paper to the surface of the plastic spraying treatment piece by using an adhesive, performing thermal transfer treatment at the temperature of 160 plus 240 ℃, and tearing off the thermal transfer paper after the thermal transfer paper is completely cooled to obtain the thermal transfer type wood grain-like door sill, which is suitable for the iron household section with more special-shaped curved surfaces, wherein the thermal transfer pattern is fully adsorbed to the surface of a household product, and the adhesion firmness is strong.
Description
Technical Field
The invention relates to the field of household production, in particular to a preparation process of a thermal transfer printing type wood grain-like household door sill.
Background
The wood-imitating process is one kind of decoration technology used in building decoration and can produce various products similar to solid wood. The product manufactured by the wood-imitation process has the visual effects of wood-imitation and real wood products which are different from each other in appearance, can be just like a fake, even difficult to distinguish, and achieves a very good decorative effect.
Aluminum spraying building sections sold in the market, aluminum spraying furniture and other daily-use steel spraying ornaments are more and more difficult to meet the aesthetic requirements of decoration of people due to the single color of the sprayed coating. Some manufacturers paste the image-text transfer film on the metal spraying piece by using glue, and then heat the metal spraying piece to transfer the image-text onto the metal spraying piece, but the heat transfer technology in the market adopts a preparation process of vacuum heat transfer plane textures, so that the limitation is that only regular sections or planes can be operated and processed, the process cannot be used for processing household products with more irregular curved surfaces due to the limitation of vacuum adsorption, and most of the processes are directed at aluminum sections, and the section is selected singly.
There is a related report that a thermal transfer process is proposed, in which a pattern is designed, then ink is uniformly applied on a thermal transfer film to form a pattern according to a set target pattern using a coating machine, and the pattern is transferred onto glass using a thermal transfer machine. For example, the document with the patent application number of CN201110410452.3 discloses a hollow glass brick thermal transfer coating and a thermal transfer process, wherein the manufacturing process comprises the following steps: coating a high-gloss transparent coating and a white coating on the surface of the hollow glass, preparing a base material or printing a digital image on a paper base material or a high-molecular film by using thermal sublimation ink, and performing vacuum-pumping packaging by using an aluminum foil bag and a silica gel tape to combine the hollow glass brick needing thermal transfer printing with the printed or printed base material to perform image transfer printing by using heating and baking equipment; the full-color digital image is transferred to the hollow glass brick in a thermal transfer printing process mode by coating the thermal transfer printing coating with high adhesiveness, good weather resistance and low energy consumption on the hollow brick glass, so that the pattern on the transfer printing paper can be perfectly transferred to the glass brick; however, in the thermal transfer process, the ink of the pattern is transferred to the hollow glass brick through natural sublimation, cannot be sufficiently adsorbed on the surface of the glass, is poor in stereoscopic impression, and is easy to fade. The problem that the thermal transfer printing image cannot be fully adsorbed on the surface of the household section bar also exists for household products with a large number of different curved surfaces.
Disclosure of Invention
In order to solve the problems, the invention provides a preparation process of a thermal transfer printing type wood grain-imitated iron door sill, which is suitable for iron household sectional materials with more special-shaped curved surfaces, and the thermal transfer printing image is fully adsorbed on the surface of a household product and has strong adhesion firmness.
The technical scheme provided by the invention is that the preparation process of the thermal transfer printing type wood grain-like iron door sill comprises the following steps:
s1, after welding the pipe fitting, pretreating the pipe fitting by using a phosphating coating agent, drying and polishing to obtain a pretreated part;
s2, electrostatically spraying plastic powder on the surface of the pretreatment part, solidifying at 195-minus 205 ℃, and cooling to form a thermoplastic coating to obtain a plastic spraying treatment part;
s3, adhering the thermal transfer paper to the surface of the plastic spraying treatment piece by using an adhesive, performing thermal transfer treatment at 160-240 ℃, and tearing off the thermal transfer paper after the thermal transfer paper is completely cooled to obtain the thermal transfer type wood grain-like door sill.
Preferably, the molding powder comprises the following components in parts by weight: 30 parts of epoxy resin, 1.8 parts of methyl ester, 20 parts of titanium dioxide, 16 parts of barium sulfate, 10 parts of flatting agent, 0.2 part of benzoin and 25 parts of pigment.
Preferably, the pigment comprises 24 parts of ultramarine, 0.05 part of imported blue and 0.05 part of iron yellow.
Preferably, the adhesive comprises the following components in parts by weight: 50-70 parts of polyester polyol, 0.5-2 parts of cross-linking agent and 5-10 parts of propylene oxide propylene ether.
Preferably, the pipe fitting is an iron pipe fitting, and the iron pipe fitting comprises at least one special-shaped curved surface.
Preferably, the cross-linking agent comprises one or more of gamma-glycidoxypropyltrimethoxysilane, gamma-aminopropyltriethoxysilane and polyethyleneimine acrylic polymers.
Preferably, the step S2 further includes maintaining the temperature for 20-30 minutes after curing.
Preferably, the step S3 further includes maintaining the temperature for 20-30 minutes after the thermal transfer process.
Preferably, the step S1 further includes removing oil by using alkaline soaking after the pipe fitting is welded, and removing rust by using acid soaking.
The scheme utilizes the action of heat energy to separate the ink layer from the paper/film and transfer the pattern to a printing stock to finish transfer printing, and the principle is that the ink on the transfer paper/film permeates into the thermoplastic coating by the sublimation solid-gas phase transfer → permeation → desublimation adsorption coloring. When the temperature is reduced and the image is desublimated, the image is completely transferred to the coating.
It is worth noting that in the scheme, the propylene oxide propylene ether in the adhesive participates in the curing reaction of the molding powder together to form a part of a cross-linked resin molecular structure, so that the thermal transfer printing film and the molding powder are fused, the thermal transfer printing image is ensured to be fully adsorbed on the surface of a household product, and the method is suitable for processing household products with more irregular curved surfaces.
The invention has the beneficial effects that:
1. according to the scheme, the molding powder is used for spraying and processing the surface of the home, so that the heat transfer film is fully combined with the special-shaped curved surface of the product;
2. the scheme uses the combination of the molding powder and the binder to replace a vacuum adsorption process in the traditional process, overcomes the defect that the vacuum adsorption process is not suitable for household products with more special-shaped curved surfaces, ensures that the heat transfer printing of the product is heated more uniformly and the adhesion of the special-shaped surface of the household product is firmer without vacuum wrapping outside the product;
3. the propylene oxide vinyl ether in the adhesive participates in the curing reaction of the epoxy resin in the plastic powder, so that the thermoplastic layer and the adhesive form a mutually-interpenetrating network structure, and the bonding degree is higher;
4. the adhesive and the molding powder both use methyl ester as a common component, so that the fusion property of the thermoplastic coating and the thermal transfer paper is improved.
Detailed Description
In order to make the present invention more comprehensible, the technical solutions of the present invention are further described below with reference to specific embodiments, but the present invention is not limited thereto.
Example 1
Preparing molding powder: respectively weighing 30g of epoxy resin, 1.8g of methyl ester, 20g of titanium dioxide, 16g of barium sulfate, 10g of flatting agent, 0.2g of benzoin, 24g of ultramarine, 0.05g of imported blue and 0.05g of iron yellow, mixing and stirring uniformly to obtain the molding powder;
preparing an adhesive: respectively weighing 50g of polyester polyol, 0.5g of gamma-glycidyl ether oxypropyltrimethoxysilane, 5g of propylene oxide allyl ether and 10g of methyl ester, and mixing and stirring uniformly to obtain the adhesive;
pretreating iron household products: taking 5-10 pieces of pipe fittings containing different-shape curved surfaces to be welded in sequence, wherein the different-shape curved surfaces are irregular curved surfaces, after the welding is finished, soaking the welded pipe fittings in 0.01mol/L NaOH solution for 1-3h to remove oil, taking out the pipe fittings and washing the pipe fittings with clean water, then soaking the pipe fittings in 0.01mol/L HCl solution for 1-2h to remove rust, taking out the pipe fittings and washing the pipe fittings with clean water, spraying a commercially available phosphating coating agent with the model number of CB81171174 on the surface of the welded pipe fittings which has been removed with oil to form a protective base layer, drying the pipe fittings at the temperature of 58-68 ℃ after washing with clean water, and removing particles and scrap irons on the surface of the welded pipe fittings by using a special-shape curved surface polishing machine to smooth the;
and (3) spraying plastics on the product: processing by using a plastic spraying assembly line, hanging the pretreated piece on a plastic spraying machine, spraying the plastic powder on the surface of the pretreated piece by using electrostatic spraying equipment, wherein the spraying thickness is 3-5mm, moving the pretreated piece out of an oven, adjusting the temperature to 195 plus materials and 205 ℃, curing for 1-3h, preserving the temperature for 20min to form a thermoplastic coating, and standing until the temperature is reduced to room temperature to obtain a plastic spraying treated piece;
thermal transfer printing: uniformly coating the adhesive on the surface of the plastic spraying treatment piece, uniformly adhering the cut thermal transfer paper on the surface of the plastic spraying treatment piece, hanging the product adhered with the thermal transfer paper on an oven production line, controlling the temperature of the oven at 160-240 ℃, preserving the heat for 20min, tearing off the thermal transfer paper after standing and cooling completely, and cleaning the surface of the product to obtain the thermal transfer type wood grain imitation door fence.
Example 2
Preparing molding powder: respectively weighing 30g of epoxy resin, 1.8g of methyl ester, 20g of titanium dioxide, 16g of barium sulfate, 10g of flatting agent, 0.2g of benzoin, 24g of ultramarine, 0.05g of imported blue and 0.05g of iron yellow, mixing and stirring uniformly to obtain the molding powder;
preparing an adhesive: respectively weighing 70g of polyester polyol, 2g of gamma-aminopropyltriethoxysilane, 10g of propylene oxide allyl ether and 20g of methyl ester, and uniformly mixing and stirring to obtain the adhesive;
pretreating iron household products: taking 5-10 pieces of pipe fittings containing different-shape curved surfaces to be welded in sequence, wherein the different-shape curved surfaces are irregular curved surfaces, after the welding is finished, soaking the welded pipe fittings in 0.01mol/L NaOH solution for 1-3h to remove oil, taking out the pipe fittings and washing the pipe fittings with clean water, then soaking the pipe fittings in 0.01mol/L HCl solution for 1-2h to remove rust, taking out the pipe fittings and washing the pipe fittings with clean water, spraying a commercially available phosphating coating agent with the model number of CB81171174 on the surface of the welded pipe fittings which has been removed with oil to form a protective base layer, drying the pipe fittings at the temperature of 58-68 ℃ after washing with clean water, and removing particles and scrap irons on the surface of the welded pipe fittings by using a special-shape curved surface polishing machine to smooth the;
and (3) spraying plastics on the product: processing by using a plastic spraying assembly line, hanging the pretreated piece on a plastic spraying machine, spraying the plastic powder on the surface of the pretreated piece by using electrostatic spraying equipment, wherein the spraying thickness is 3-5mm, moving the pretreated piece out of an oven, adjusting the temperature to 195 plus materials and 205 ℃, curing for 1-3h, preserving the temperature for 30min to form a thermoplastic coating, and standing until the temperature is reduced to room temperature to obtain a plastic spraying treated piece;
thermal transfer printing: uniformly coating the adhesive on the surface of the plastic spraying treatment piece, uniformly adhering the cut thermal transfer paper on the surface of the plastic spraying treatment piece, hanging the product adhered with the thermal transfer paper on an oven production line, controlling the temperature of the oven at 160-240 ℃, preserving the heat for 30min, tearing off the thermal transfer paper after standing and cooling completely, and cleaning the surface of the product to obtain the thermal transfer type wood grain imitation door fence.
Example 3
Preparing molding powder: respectively weighing 30g of epoxy resin, 1.8g of methyl ester, 20g of titanium dioxide, 16g of barium sulfate, 10g of flatting agent, 0.2g of benzoin, 24g of ultramarine, 0.05g of imported blue and 0.05g of iron yellow, mixing and stirring uniformly to obtain the molding powder;
preparing an adhesive: respectively weighing 60g of polyester polyol, 1g of polyethylene imine acrylic polymer, 8g of propylene oxide propylene ether and 15g of methyl ester, and uniformly mixing and stirring to obtain the adhesive;
pretreating iron household products: taking 5-10 pipes for welding in sequence, after welding, soaking the welded pipe in 0.01mol/L NaOH solution for 1-3h to remove oil, taking out and washing with clear water, then soaking in 0.01mol/L HCl solution for 1-2h to remove rust, taking out and washing with clear water, spraying a commercially available phosphating coating agent with the model of CB81171174 on the surface of the welded pipe which has been subjected to oil and rust removal to form a protective base layer, washing with clear water, drying at 58-68 ℃, and removing particles and scrap iron on the surface of the welded pipe by using a special-shaped curved surface polishing machine to smooth the surface of the welded pipe to obtain the pretreated part;
and (3) spraying plastics on the product: processing by using a plastic spraying assembly line, hanging the pretreated piece on a plastic spraying machine, spraying the plastic powder on the surface of the pretreated piece by using electrostatic spraying equipment, wherein the spraying thickness is 3-5mm, moving the pretreated piece out of an oven, adjusting the temperature to 195 plus materials and 205 ℃, curing for 1-3h, preserving the temperature for 30min to form a thermoplastic coating, and standing until the temperature is reduced to room temperature to obtain a plastic spraying treated piece;
thermal transfer printing: uniformly coating the adhesive on the surface of the plastic spraying treatment piece, uniformly adhering the cut thermal transfer paper on the surface of the plastic spraying treatment piece, hanging the product adhered with the thermal transfer paper on an oven production line, controlling the temperature of the oven at 160-240 ℃, preserving the heat for 30min, tearing off the thermal transfer paper after standing and cooling completely, and cleaning the surface of the product to obtain the thermal transfer type wood grain imitation door fence.
Comparative example 1
Preparing molding powder: respectively weighing 30g of epoxy resin, 1.8g of methyl ester, 20g of titanium dioxide, 16g of barium sulfate, 10g of flatting agent, 0.2g of benzoin, 24g of ultramarine, 0.05g of imported blue and 0.05g of iron yellow, mixing and stirring uniformly to obtain the molding powder;
preparing an adhesive: respectively weighing 70g of polyester polyol, 2g of gamma-aminopropyltriethoxysilane, 10g of propylene oxide allyl ether and 20g of methyl ester, and uniformly mixing and stirring to obtain the adhesive;
pretreatment of aluminum household products: sequentially welding 5-10 pipes with different-shaped curved surfaces, namely irregular curved surfaces, spraying a commercially available phosphating coating agent with the model number of CB81171174 onto the surfaces of the welded pipes which are subjected to oil and rust removal to form a protective base layer after welding, washing with clear water, drying at 58-68 ℃, removing particles on the surfaces of the welded pipes by using a special-shaped curved surface polishing machine, and smoothing the surfaces of the welded pipes to obtain the pretreated part;
and (3) spraying plastics on the product: processing by using a plastic spraying assembly line, hanging the pretreated piece on a plastic spraying machine, spraying the plastic powder on the surface of the pretreated piece by using electrostatic spraying equipment, wherein the spraying thickness is 3-5mm, moving the pretreated piece out of an oven, adjusting the temperature to 195 plus materials and 205 ℃, curing for 1-3h, preserving the temperature for 30min to form a thermoplastic coating, and standing until the temperature is reduced to room temperature to obtain a plastic spraying treated piece;
thermal transfer printing: uniformly coating the adhesive on the surface of the plastic spraying treatment piece, uniformly adhering the cut thermal transfer paper on the surface of the plastic spraying treatment piece, hanging the product adhered with the thermal transfer paper on an oven production line, controlling the temperature of the oven at 160-240 ℃, preserving heat for 30min, tearing off the thermal transfer paper after standing and cooling completely, and cleaning the surface of the product to obtain the thermal transfer type wood grain imitation door fence.
Comparative example 2
100g of commercial phenolic resin was used as molding powder in this comparative example;
preparing an adhesive: respectively weighing 70g of polyester polyol, 2g of gamma-aminopropyltriethoxysilane, 10g of propylene oxide allyl ether and 20g of methyl ester, and uniformly mixing and stirring to obtain the adhesive;
pretreating iron household products: taking 5-10 pieces of pipe fittings containing different-shape curved surfaces to be welded in sequence, wherein the different-shape curved surfaces are irregular curved surfaces, after the welding is finished, soaking the welded pipe fittings in 0.01mol/L NaOH solution for 1-3h to remove oil, taking out the pipe fittings and washing the pipe fittings with clean water, then soaking the pipe fittings in 0.01mol/L HCl solution for 1-2h to remove rust, taking out the pipe fittings and washing the pipe fittings with clean water, spraying a commercially available phosphating coating agent with the model number of CB81171174 on the surface of the welded pipe fittings which has been removed with oil to form a protective base layer, drying the pipe fittings at the temperature of 58-68 ℃ after washing with clean water, and removing particles and scrap irons on the surface of the welded pipe fittings by using a special-shape curved surface polishing machine to smooth the;
and (3) spraying plastics on the product: processing by using a plastic spraying assembly line, hanging the pretreated piece on a plastic spraying machine, spraying the plastic powder on the surface of the pretreated piece by using electrostatic spraying equipment, wherein the spraying thickness is 3-5mm, moving the pretreated piece out of an oven, adjusting the temperature to 195 plus materials and 205 ℃, curing for 1-3h, preserving the temperature for 30min to form a thermoplastic coating, and standing until the temperature is reduced to room temperature to obtain a plastic spraying treated piece;
thermal transfer printing: uniformly coating the adhesive on the surface of the plastic spraying treatment piece, uniformly adhering the cut thermal transfer paper on the surface of the plastic spraying treatment piece, hanging the product adhered with the thermal transfer paper on an oven production line, controlling the temperature of the oven at 160-240 ℃, preserving heat for 30min, tearing off the thermal transfer paper after standing and cooling completely, and cleaning the surface of the product to obtain the thermal transfer type wood grain imitation door fence.
Comparative example 3
Preparing molding powder: respectively weighing 30g of epoxy resin, 1.8g of methyl ester, 20g of titanium dioxide, 16g of barium sulfate, 10g of flatting agent, 0.2g of benzoin, 24g of ultramarine, 0.05g of imported blue and 0.05g of iron yellow, mixing and stirring uniformly to obtain the molding powder;
preparing an adhesive: respectively weighing 50g of polyester polyol and 0.5g of gamma-glycidyl ether oxypropyltrimethoxysilane, and uniformly mixing and stirring to obtain the adhesive;
pretreating iron household products: taking 5-10 pieces of pipe fittings containing different-shape curved surfaces to be welded in sequence, wherein the different-shape curved surfaces are irregular curved surfaces, after the welding is finished, soaking the welded pipe fittings in 0.01mol/L NaOH solution for 1-3h to remove oil, taking out the pipe fittings and washing the pipe fittings with clean water, then soaking the pipe fittings in 0.01mol/L HCl solution for 1-2h to remove rust, taking out the pipe fittings and washing the pipe fittings with clean water, spraying a commercially available phosphating coating agent with the model number of CB81171174 on the surface of the welded pipe fittings which has been removed with oil to form a protective base layer, drying the pipe fittings at the temperature of 58-68 ℃ after washing with clean water, and removing particles and scrap irons on the surface of the welded pipe fittings by using a special-shape curved surface polishing machine to smooth the;
and (3) spraying plastics on the product: processing by using a plastic spraying assembly line, hanging the pretreated piece on a plastic spraying machine, spraying the plastic powder on the surface of the pretreated piece by using electrostatic spraying equipment, wherein the spraying thickness is 3-5mm, moving the pretreated piece out of an oven, adjusting the temperature to 195 plus materials and 205 ℃, curing for 1-3h, preserving the temperature for 20min to form a thermoplastic coating, and standing until the temperature is reduced to room temperature to obtain a plastic spraying treated piece;
thermal transfer printing: uniformly coating the adhesive on the surface of the plastic spraying treatment piece, uniformly adhering the cut thermal transfer paper on the surface of the plastic spraying treatment piece, hanging the product adhered with the thermal transfer paper on an oven production line, controlling the temperature of the oven at 160-240 ℃, preserving the heat for 20min, tearing off the thermal transfer paper after standing and cooling completely, and cleaning the surface of the product to obtain the thermal transfer type wood grain imitation door fence.
Comparative example 4
Preparing molding powder: respectively weighing 30g of epoxy resin, 1.8g of methyl ester, 20g of titanium dioxide, 16g of barium sulfate, 10g of flatting agent, 0.2g of benzoin, 24g of ultramarine, 0.05g of imported blue and 0.05g of iron yellow, mixing and stirring uniformly to obtain the molding powder;
pretreating iron household products: taking 5-10 pieces of pipe fittings containing different-shape curved surfaces to be welded in sequence, wherein the different-shape curved surfaces are irregular curved surfaces, after the welding is finished, soaking the welded pipe fittings in 0.01mol/L NaOH solution for 1-3h to remove oil, taking out the pipe fittings and washing the pipe fittings with clean water, then soaking the pipe fittings in 0.01mol/L HCl solution for 1-2h to remove rust, taking out the pipe fittings and washing the pipe fittings with clean water, spraying a commercially available phosphating coating agent with the model number of CB81171174 on the surface of the welded pipe fittings which has been removed with oil to form a protective base layer, drying the pipe fittings at the temperature of 58-68 ℃ after washing with clean water, and removing particles and scrap irons on the surface of the welded pipe fittings by using a special-shape curved surface polishing machine to smooth the;
and (3) spraying plastics on the product: processing by using a plastic spraying assembly line, hanging the pretreated piece on a plastic spraying machine, spraying the plastic powder on the surface of the pretreated piece by using electrostatic spraying equipment, wherein the spraying thickness is 3-5mm, moving the pretreated piece out of an oven, adjusting the temperature to 195 plus materials and 205 ℃, curing for 1-3h, preserving the temperature for 20min to form a thermoplastic coating, and standing until the temperature is reduced to room temperature to obtain a plastic spraying treated piece;
thermal transfer printing: and pressing the thermal transfer paper on the plastic spraying treatment piece by using a vacuum press, putting the plastic spraying treatment piece into an oven, controlling the temperature of the oven between 160 and 240 ℃, preserving the heat for 20min, tearing off the thermal transfer paper after standing and cooling completely, and cleaning the surface of the product to obtain the thermal transfer type wood grain imitation door sill.
Test method
The products prepared in examples 1-3 and comparative examples 1-4 were tested for separation resistance between thermal transfer images and the base layer of the tube using a white knife, comprising the following steps: placing the test piece on a flat plate with enough hardness, holding a handle of the grid scriber by hand, enabling a multi-edge cutter to be vertical to the plane of the test piece, scribing with a uniform pressure, a balanced non-vibration method and a cutting speed of 20-50mm/S, rotating the angle piece by 90 degrees, repeating the operations on the scribed cut to form a grid pattern, gently backwards measuring two diagonal lines of the grid pattern by using a soft hairbrush for 5 times, brushing the test piece forwards for 5 times, gently backwards measuring two diagonal lines of the grid pattern by using the soft hairbrush for 5 times, and brushing the test piece forwards for 5 times to test the stripping condition.
Wherein the edges of the cuts are completely smooth, the edges of the grid have no peeling 5B, the small pieces peel off at the intersections of the cuts, the actual damage in the grid area is not more than 5% and is 4B, the edges and/or intersections of the cuts are peeled off, the area of the small pieces is more than 5% and is less than 15% and is 3B, the small pieces partially peel off or peel off in whole along the edges of the cuts, and/or a part of the cuts are peeled off in whole, the peeled area exceeds 15% and is less than 35% and is 2B, the area of the large pieces of the edges of the cuts is more than 35% and is not more than 65% and is 1B, and the results are shown in Table 1.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (9)
1. A preparation process of a thermal transfer printing type wood grain-like iron door sill is characterized by comprising the following steps:
s1, after welding the pipe fitting, pretreating the pipe fitting by using a phosphating coating agent, drying and polishing to obtain a pretreated part;
s2, electrostatically spraying plastic powder on the surface of the pretreatment part, solidifying at 195-minus 205 ℃, and cooling to form a thermoplastic coating to obtain a plastic spraying treatment part;
s3, adhering the thermal transfer paper to the surface of the plastic spraying treatment piece by using an adhesive, performing thermal transfer treatment at 160-240 ℃, and tearing off the thermal transfer paper after the thermal transfer paper is completely cooled to obtain the thermal transfer type wood grain-like door sill.
2. The preparation process of the thermal transfer printing type wood-grain-imitated iron doorsill as claimed in claim 1, wherein the molding powder comprises the following components in parts by weight: 30 parts of epoxy resin, 1.8 parts of methyl ester, 20 parts of titanium dioxide, 16 parts of barium sulfate, 10 parts of flatting agent, 0.2 part of benzoin and 25 parts of pigment.
3. The process for preparing the thermal transfer type wood grain-imitating iron door sill as claimed in claim 2, wherein the pigment comprises one or more of ultramarine blue, imported blue and iron yellow.
4. The preparation process of the thermal transfer type wood grain-imitating iron door sill as claimed in claim 1, wherein the adhesive comprises the following components in parts by weight: 50-70 parts of polyester polyol, 0.5-2 parts of cross-linking agent, 5-10 parts of propylene oxide allyl ether and 10-20 parts of methyl ester.
5. The process for preparing the thermal transfer type wood grain imitation iron door sill according to claim 1, wherein the pipe is an iron pipe, and the iron pipe comprises at least one profiled curved surface.
6. The process for preparing the thermal transfer type wood grain-imitating iron gate sill as claimed in claim 4, wherein the cross-linking agent comprises one or more of gamma-glycidoxypropyltrimethoxysilane, gamma-aminopropyltriethoxysilane, polyethyleneimine acrylic polymers.
7. The process for preparing the thermal transfer type wood grain-imitating iron doorsill as claimed in claim 1, wherein the step S2 further comprises maintaining the temperature for 20-30 minutes after curing.
8. The process for preparing the thermal transfer type wood grain-imitating iron doorsill as claimed in claim 1, wherein the step S3 further comprises heat preservation for 20-30 minutes after the thermal transfer process.
9. The process for preparing the thermal transfer type wood grain-imitating iron door sill as claimed in claim 1, wherein the step S1 further includes removing oil by alkaline soaking and removing rust by acid soaking after pipe welding.
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CN115195334A (en) * | 2022-07-05 | 2022-10-18 | 盛基家居用品开发(嘉善)有限公司 | Production process of multi-type spliced integrated decorative surface |
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