CN106272802B - A kind of water coating transfer wood plastic product and preparation method thereof - Google Patents
A kind of water coating transfer wood plastic product and preparation method thereof Download PDFInfo
- Publication number
- CN106272802B CN106272802B CN201610629881.2A CN201610629881A CN106272802B CN 106272802 B CN106272802 B CN 106272802B CN 201610629881 A CN201610629881 A CN 201610629881A CN 106272802 B CN106272802 B CN 106272802B
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- corona treatment
- present
- wood
- base material
- water coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/0015—Treating of wood not provided for in groups B27K1/00, B27K3/00 by electric means
- B27K5/002—Electric discharges, plasma
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
- B44C1/175—Transfer using solvent
- B44C1/1758—Decalcomanias applied under pressure only, e.g. provided with a pressure sensitive layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/20—Applying plastic materials and superficially modelling the surface of these materials
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides the preparation method that a kind of water coating transfers wood plastic product, corona treatment is carried out to wood moulding base material first, then the wood moulding base material after obtained corona treatment is entered into water-filling coating transfer process, obtain head product, obtained head product is finally subjected to corona treatment, water coating transfer wood plastic product is obtained.The present invention is the surface between corona treatment wood moulding base material and each layer by the way of physics, and its surface tension can be substantially improved, and to increase surface energy, and then effectively increases the adhesive force between each layer.The water coating transfer wood plastic product that the method provided using the present invention is prepared disclosure satisfy that actual requirement.In addition, the method that the present invention is provided is on the premise of ensuring to improve water coating transfer ply adhesion, moreover it is possible to keep environmental protection, free of contamination characteristic, cater to the requirement in epoch.
Description
Technical field
The present invention relates to water coating transfer technique field, more particularly to a kind of water coating transfer wood plastic product and its preparation side
Method.
Background technology
In the 21 century of rapid technological growth, to fill up the technological gap of solid surface printed decoration, water coating of being born
Transfer technique.Water coating transfer printing process is will to print figuratum macromolecule membrane to be placed on flattening activation in water, in the effect of hydraulic pressure
Pattern on lower film, which is transferred in, have been sprayed on priming paint or workpiece without primer spray, after film automatic dissolving, will be printed figuratum
Workpiece cleaning, drying, then spray a clear finish on its surface and are protected again.
But it is immature due to technology in water coating transfer process, cause the transferring effect of final products unsatisfactory,
Wherein most critical the problem of be how to improve water coating transfer ply adhesion, to ensure the good result of transfer.Carry at present
The method that high water coating transfers ply adhesion, mainly by chemical method, is such as carried out using chemical reagent to substrate surface
Processing, makes to chemically react between each layer, to realize the raising of adhesive force.But such a method can not effectively improve water
Coating transfers ply adhesion, and the surface after handling it is volatile go out poisonous and taste very heavy gas, to air and human body
There is certain pollution.
The content of the invention
It is an object of the invention to provide a kind of water coating transfer wood plastic product and preparation method thereof.Using present invention offer
Method, the surface tension of water coating transfer printing layer can be substantially improved, with increase surface can, and then can effectively improve each layer it
Between adhesive force.
The invention provides the preparation method that a kind of water coating transfers wood plastic product, comprise the following steps：
(1) corona treatment is carried out to wood moulding base material；
(2) the wood moulding base material after the corona treatment for obtaining the step (1) enters water-filling coating transfer process, obtains
Head product；
(3) head product for obtaining the step (2) carries out corona treatment, obtains water coating transfer wood plastic product.
It is preferred that, the rf frequency of step (1) and step (3) described corona treatment is 40KHz.
It is preferred that, the time of step (1) described corona treatment is 5~30min.
It is preferred that, the temperature of step (1) described corona treatment is 25~65 DEG C.
It is preferred that, the time of step (3) described corona treatment is 5~30min.
It is preferred that, the temperature of step (3) described corona treatment is 25~65 DEG C.
It is preferred that, carry out that described in step (1) before corona treatment, polishing pretreatment is carried out to the wood moulding base material.
It is preferred that, carry out described in step (2) before water coating transfer process, by the wood moulding base after the corona treatment
Material carries out basecoat paint processing.
It is preferred that, carry out that described in step (3) after corona treatment, the head product after corona treatment is carried out into face
Spray treatment is painted, water coating transfer wood plastic product is obtained.
Wood plastic product is transferred the invention provides the water coating that above-mentioned technical proposal methods described is prepared.
The invention provides the preparation method that a kind of water coating transfers wood plastic product, plasma is carried out to wood moulding base material first
Body processing, then enters water-filling coating transfer process by the wood moulding base material after obtained corona treatment, obtains head product, finally
Obtained head product is subjected to corona treatment, water coating transfer wood plastic product is obtained.The present invention is by the way of physics
Surface between corona treatment wood moulding base material and each layer, can be substantially improved its surface tension, to increase surface energy, Jin Eryou
Effect improves the adhesive force between each layer；The water coating transfer wood plastic product that the method provided using the present invention is prepared can
Meet actual requirement.
The embodiment of the present invention is to the wood moulding base material of the invention that be surface-treated through plasma provided and without surface
The surface tension of the wood moulding base material of processing and the wood moulding base material being surface-treated through chemical reagent is tested, as a result table
Bright, the method provided using the present invention is carried out after corona treatment to wood moulding base material, can increase substantially wood moulding base material
Surface tension, up to 50~55 dynes per centimeters (dyn/cm).The embodiment of the present invention is prepared into the method provided using the present invention
To wood plastic product and unprocessed obtained wood plastic product and handle through chemical reagent the surface paint film of obtained wood plastic product
Adhesive force is tested, and is as a result shown, the method provided using the present invention can increase substantially the surface lacquer of wood plastic product
Film adhesive force, grade is up to 0 grade.
In addition, the method that the present invention is provided is on the premise of ensuring to improve water coating transfer ply adhesion, moreover it is possible to keep
Environmental protection, free of contamination characteristic, cater to the requirement in epoch.
Embodiment
The invention provides the preparation method that a kind of water coating transfers wood plastic product, comprise the following steps：
(1) corona treatment is carried out to wood moulding base material；
(2) the wood moulding base material after the corona treatment for obtaining the step (1) enters water-filling coating transfer process, obtains
Head product；
(3) head product for obtaining the step (2) carries out corona treatment, obtains water coating transfer wood plastic product.
The water coating that the present invention is provided transfers the preparation method of wood plastic product, and the table of water coating transfer printing layer can be substantially improved
Face tension force, to increase surface energy, and then can effectively improve the adhesive force between each layer.
The present invention does not have special restriction for the species of the wood moulding base material, is used using well known to those skilled in the art
In the wood moulding base material for preparing wood plastic product.In the present invention, the wood moulding base material preferably includes polypropylene (PP) wood moulding base
Material, polyethylene (PE) wood moulding base material or polyvinyl chloride (PVC) wood moulding base material.
The present invention to wood moulding base material before corona treatment is carried out, and wood moulding base material described in preferred pair carries out pre- place of polishing
Reason.The present invention for it is described polishing pretreatment method there is no special restriction, using it is well known to those skilled in the art can
Clear up the dust of the wood moulding substrate surface, and the wood moulding substrate surface is carried out to smooth method.The present invention's
It is specific that the surface of the wood moulding base material is polished using 240# sand paper in embodiment.
The wood moulding base material is carried out after polishing pretreatment, the present invention is carried out to the pretreated wood moulding base material of polishing
Corona treatment.In the present invention, the rf frequency of the corona treatment is preferably 40KHz.In the present invention, it is described
The time of corona treatment is preferably 5~30min, more preferably 10~25min, most preferably 15~20min.In the present invention
In, the temperature of the corona treatment is preferably 25~65 DEG C, more preferably 35~55 DEG C, most preferably 40~50 DEG C.
In the present invention, the gas flow of the corona treatment is preferably 30~60mL/min, more preferably 40~50mL/min.
In the present invention, the vacuum of the corona treatment is preferably 0.3~1.0MPa, more preferably 0.5~0.8MPa.The present invention
There is no special restriction for the gaseous species of the corona treatment, using plasma well known to those skilled in the art
The gas of processing.In an embodiment of the present invention, it is specific using gas of the oxygen as corona treatment.
The present invention does not have special restriction for carrying out the equipment that the corona treatment is used, using this area skill
It is used for the equipment for carrying out corona treatment known to art personnel.Beaten present invention preferably employs plasma cleaner described
Grind pretreated wood moulding base material and carry out corona treatment.In the present invention, the volume of the plasma cleaner is preferably 8
~10 liters；The middle radio-frequency power supply power of the plasma cleaner is preferably 600W, and operating current is preferably 1.0~1.2A.
Complete after the corona treatment, the wood moulding base material after corona treatment is entered water-filling coating transfer by the present invention
Processing, obtains head product.The present invention is before water coating transfer process, and the wood moulding base material after corona treatment described in preferred pair enters
The processing of row basecoat paint.The present invention does not have special restriction for the species of the priming paint, is known using those skilled in the art
Priming paint.In the present invention, the priming paint is preferably acrylic resin, more preferably thermoplastic acrylic resin.At this
In invention, the viscosity of the priming paint is preferably 18~24s, more preferably 20~22s.After the present invention preferably filters the priming paint
Use.The present invention does not have special restriction for the method for the filtering or the equipment of use, ripe using those skilled in the art
The technical scheme for the filtering priming paint known.The priming paint is filtered present invention preferably employs paint screen pack.In this hair
In bright, the paint screen pack is preferably 200~300 mesh.
The present invention does not have special restriction for the method for basecoat paint processing, is known using those skilled in the art
Basecoat paint processing method.The basecoat paint processing is completed present invention preferably employs spray gun.In the present invention, supply
Pressure to the spray gun is preferably 0.3~0.6Mpa, more preferably 0.4~0.5Mpa.In the present invention, the spray of the spray gun
Mouthpiece footpath is preferably 1.4~1.6mm, more preferably 1.5mm.In the present invention, the coating cloud emission direction of the priming paint preferably hangs down
Directly in by spray plane, the nozzle of the spray gun is with being preferably 20~30cm by the distance of spray plane, more preferably 15~25cm.The present invention
When carrying out the basecoat paint processing, the quantity for spray of the priming paint is preferably 100~125g/m2, more preferably 105~115g/
m2。
Complete after the basecoat paint processing, the wood moulding base material after the present invention is preferably handled basecoat paint is dried.
The present invention does not have special restriction for the drying, using the technical scheme of drying well known to those skilled in the art.
In the present invention, the temperature of the drying is preferably 60~70 DEG C, more preferably 63~66 DEG C；The time of the drying is preferably
15~20min.The wood moulding base material after basecoat paint processing is dried present invention preferably employs baking oven.
Complete after the drying, the dried wood moulding base material is entered water-filling coating transfer process by the present invention, obtain just
Product.The present invention does not have special restriction for carrying out the equipment of the water coating transfer process, using those skilled in the art
The well known equipment for water coating transfer process.The water is carried out present invention preferably employs the upper film groove of thermostatted water transfer to drape over one's shoulders
Cover transfer process.
The present invention does not have special restriction for the method for the water coating transfer process, ripe using those skilled in the art
The method for the water coating transfer process known.In the present invention, the water coating transfer process preferably includes following steps：
Water coating film paper is lain against on the water surface, the picture and text layer of the water coating film paper is stood upward；
The picture and text layer of the water coating film paper is separated with film paper；
Dried wood moulding base material is contacted with picture and text layer, the head product is obtained.
The present invention lies against the water coating film paper on the water surface, and the picture and text layer of the water coating film paper is upward, quiet
Put.In the present invention, when carrying out the water coating transfer process, water temperature is preferably 30~42 DEG C, more preferably 34~38 DEG C.This
Invention does not have special restriction for the time of the standing, using it is well known to those skilled in the art can be by the water coating
Time of the film paper complete wetting in water.In the present invention, the time of the standing is preferably 4~6min.In order to anti-
Only the water coating film paper is rocked in water, present invention preferably employs art designing's paper wide 0.5cm to the water coating film paper
Edge be fixed, then with Boards wall in relative both sides.
The present invention does not have special restriction for the method for separating the picture and text layer of water coating film paper with film paper, adopts
With the technical scheme well known to those skilled in the art that can separate the picture and text layer of the water coating film paper with film paper.
The present invention swims in the water surface to picture and text layer preferably in the water coating film paper surface spraying activator in free state
On, realize being kept completely separate for picture and text layer and film paper.The present invention does not have special for the source of the activator or species
Limit, using the activator well known to those skilled in the art matched with the water coating film paper.
The present invention does not have special restriction for the method for contacting dried wood moulding base material and the picture and text layer,
Using the technical scheme well known to those skilled in the art for contacting wood moulding base material with picture and text layer.The present invention preferably will
The dried wood moulding base material enters water with 45 °~60 ° angles, is transferred to picture and text layer using hydraulic pressure described dried
Wood moulding substrate surface.
Complete after the water coating transfer process, the present invention preferably the product after water coating transfer process is washed,
Dry, obtain head product.The present invention does not have special restriction for the method for the washing, is known using those skilled in the art
Washing technical scheme.The product after the water coating transfer process is entered present invention preferably employs water transfer bath rifle
Water-filling is washed.The water used when the present invention is for the washing does not have special restriction, using water well known to those skilled in the art
.The product after the water coating transfer process is washed present invention preferably employs running water.The present invention is for described
Dry without special restriction, using the technical scheme of drying well known to those skilled in the art.In the present invention, it is described
Dry temperature is preferably 60~70 DEG C, more preferably 63~66 DEG C；The time of the drying is preferably 7~10min.The present invention
It is preferred to use baking oven and carries out the drying.
Obtain after the head product, the head product is carried out corona treatment by the present invention, obtain water coating transfer wood
Mould product.In the present invention, the rf frequency of the corona treatment is preferably 40KHz.In the present invention, the plasma
The time of body processing is preferably 5~30min, more preferably 10~25min, most preferably 15~20min.In the present invention, institute
The temperature for stating corona treatment is preferably 25~65 DEG C, more preferably 35~55 DEG C, most preferably 40~50 DEG C.In the present invention
In, the gas flow of the corona treatment is preferably 30~60mL/min, more preferably 40~50mL/min.In the present invention
In, the vacuum of the corona treatment is preferably 0.3~1.0MPa, more preferably 0.5~0.8MPa.The present invention is for institute
Stating the gaseous species of corona treatment does not have special restriction, using corona treatment well known to those skilled in the art
Gas.In an embodiment of the present invention, it is specific using gas of the oxygen as corona treatment.
The present invention does not have special restriction for carrying out the equipment that the corona treatment is used, using this area skill
It is used for the equipment for carrying out corona treatment known to art personnel.Present invention preferably employs plasma cleaner to described first
Product carries out corona treatment.In the present invention, the volume of the plasma cleaner is preferably 8~10 liters；The grade from
The middle radio-frequency power supply power of sub- cleaning machine is preferably 600W, and operating current is preferably 1.0~1.2A.
In the present invention, the method for plasma processing carried out to the head product to described preferably with polishing what is pre-processed
The method of plasma processing that wood moulding base material is carried out is consistent.
Head product is carried out after corona treatment, the head product after corona treatment is preferably carried out finish paint by the present invention
Spray treatment, to strengthen the picture and text layer to the repellence of environment, makes picture and text difficult for drop-off, and make product surface rich in light
Pool, it is more attractive in appearance, improve its added value.The present invention does not have special restriction for the species of the finish paint, using this area skill
Finish paint known to art personnel.In the present invention, the finish paint is preferably acrylic resin, more preferably thermoplastic acrylic
Resin.In the present invention, the viscosity of the finish paint is preferably 18~24s, more preferably 20~22s.The present invention preferably will be described
Used after finish paint filtering.The present invention does not have special restriction for the method for the filtering or the equipment of use, using this area
The technical scheme of filtering finish paint known to technical staff.The finish paint was carried out present invention preferably employs paint screen pack
Filter.In the present invention, the paint screen pack is preferably 200~300 mesh.
The present invention does not have special restriction for the method for the finish paint spray treatment, is known using those skilled in the art
Finish paint spray treatment method.The finish paint spray treatment is completed present invention preferably employs spray gun.In the present invention, supply
Pressure to the spray gun is preferably 0.3~0.6Mpa, more preferably 0.4~0.5Mpa.In the present invention, the spray of the spray gun
Mouthpiece footpath is preferably 1.4~1.6mm, more preferably 1.5mm.In the present invention, the coating cloud emission direction of the finish paint preferably hangs down
Directly in by spray plane, the nozzle of the spray gun is with being preferably 20~30cm by the distance of spray plane, more preferably 23~27cm.The present invention
When carrying out the finish paint spray treatment, the quantity for spray of the finish paint is preferably 100~125g/m2, more preferably 105~115g/
m2。
In the present invention, to after the corona treatment head product carry out finish paint spraying process for treating preferably with it is right
The basecoat paint processing method that wood moulding base material after the corona treatment is carried out is consistent.
Complete after the finish paint spray treatment, preferably the head product after finish paint spray treatment is dried by the present invention, obtains
Wood plastic product is transferred to water coating.The present invention does not have special restriction for the drying, is known using those skilled in the art
Drying technical scheme.In the present invention, the drying preferably includes first drying and redrying.In the present invention
In, the temperature dry for the first time is preferably 60~70 DEG C, more preferably 63~66 DEG C；The time dry for the first time is preferably
4~6min.The head product after the finish paint spray treatment is dried for the first time present invention preferably employs baking oven.In the present invention
In, the temperature of the redrying is preferably 20~40 DEG C, more preferably 25~35 DEG C；Specifically, in embodiments of the invention
In, the redrying is carried out at room temperature, i.e., without heating without cooling.In the present invention, the redrying when
Between be preferably 18~30h, more preferably 22~26h.
Wood plastic product is transferred the invention provides the water coating that above-mentioned technical proposal methods described is prepared.In the present invention
In, the water coating transfer wood plastic product preferably includes polypropylene (PP) wood plastic product, polyethylene (PE) wood plastic product or polychlorostyrene
Ethene (PVC) wood plastic product.
Below in conjunction with the embodiment in the present invention, the technical scheme in the present invention is clearly and completely described.It is aobvious
So, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the reality in the present invention
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made all belongs to
In the scope of protection of the invention.
Embodiment 1
(1) surface of the polyethylene (PE) wood moulding base material is polished using 240# sand paper；
(2) corona treatment is carried out to the PE wood mouldings base material after polishing in step (1) using plasma cleaner, its
In, the volume of the plasma cleaner is 8 liters, and radio-frequency power supply power is 600 watts, and rf frequency is 40KHz, and operating current is
1.0A；The time of the corona treatment is 30min, and temperature is 60 DEG C, and oxygen flow is 30mL/min, and vacuum is
0.3MPa；
(3) it is priming paint for 18s thermoplastic acrylic resin to use viscosity, and the priming paint is filtered with the paint of 200 mesh
It is placed in after net filtration in spray gun, basecoat paint processing is carried out to the PE wood mouldings base material after the processing of step (2) plasma, then
15min is dried to the PE wood moulding base materials after basecoat paint processing under the conditions of 70 DEG C using baking oven；Wherein, institute is supplied
The pressure for stating spray gun is 0.3Mpa, and the nozzle diameter of the spray gun is 1.5mm, and the coating cloud emission direction of the priming paint is perpendicular to quilt
Spray plane, the nozzle of the spray gun is with being 20cm by the distance of spray plane, and the quantity for spray of the priming paint is 100g/m2；
(4) water coating film paper is lain against on the water surface of the upper film groove of thermostatted water transfer, the figure of the water coating film paper
Upward, the edge of the water coating film paper is fixed using art designing's paper wide 0.5cm for literary layer, then with Boards wall in phase
To both sides, stand 5min, wherein, water temperature be 30 DEG C；Activator is sprayed at the water coating film paper surface, to the figure
Literary layer is swum on the water surface in free state, it is ensured that the picture and text layer and film paper of the water coating film paper are kept completely separate；By step
(3) dried PE wood mouldings base material enters water with 45 ° of angle in, is transferred to picture and text layer using hydraulic pressure described dried
PE wood moulding substrate surfaces；The PE wood-plastic products after water coating transfer process are washed using water transfer bath rifle, then adopted
7min is dried under the conditions of 70 DEG C with baking oven, PE wood moulding head products are obtained；
(5) PE wood mouldings head product progress obtained successively according to step (2) and step (3) methods described to step (4) etc.
Gas ions processing and finish paint spray treatment, then carry out drying 5min for the first time under the conditions of 65 DEG C, carry out at room temperature using baking oven
Redrying 18h, obtains PE wood plastic products.
Embodiment 2
(1) surface of the polyvinyl chloride (PVC) wood moulding base material is polished using 240# sand paper；
(2) corona treatment is carried out to the PVC wood molding base after polishing in step (1) using plasma cleaner, its
In, the volume of the plasma cleaner is 8 liters, and radio-frequency power supply power is 600 watts, and rf frequency is 40KHz, and operating current is
1.0A；The time of the corona treatment is 10min, and temperature is 40 DEG C, and oxygen flow is 60mL/min, and vacuum is
1.0MPa；
(3) it is priming paint for 24s thermoplastic acrylic resin to use viscosity, and the priming paint is filtered with the paint of 300 mesh
It is placed in after net filtration in spray gun, basecoat paint processing is carried out to the PVC wood molding base after the processing of step (2) plasma, so
20min is dried to the PVC wood molding base after basecoat paint processing under the conditions of 60 DEG C using baking oven afterwards；Wherein, supply
Pressure to the spray gun is 0.6Mpa, and the nozzle diameter of the spray gun is 1.5mm, and the coating cloud emission direction of the priming paint is vertical
In by spray plane, the nozzle of the spray gun is with being 30cm by the distance of spray plane, and the quantity for spray of the priming paint is 110g/m2；
(4) water coating film paper is lain against on the water surface of the upper film groove of thermostatted water transfer, the figure of the water coating film paper
Upward, the edge of the water coating film paper is fixed using art designing's paper wide 0.5cm for literary layer, then with Boards wall in phase
To both sides, stand 5min, wherein, water temperature be 42 DEG C；Activator is sprayed at the water coating film paper surface, to the figure
Literary layer is swum on the water surface in free state, it is ensured that the picture and text layer and film paper of the water coating film paper are kept completely separate；By step
(3) dried PVC wood molding base enters water with 60 ° of angle in, and picture and text layer is transferred to after the drying using hydraulic pressure
PVC wood plastic substrate surface；The PVC wood molding product after water coating transfer process is washed using water transfer bath rifle, so
10min is dried under the conditions of 60 DEG C using baking oven afterwards, PVC wood plastic head product is obtained；
(5) PVC wood plastic head product progress obtained successively according to step (2) and step (3) methods described to step (4) etc.
Gas ions processing and finish paint spray treatment, then carry out drying 4min for the first time under the conditions of 70 DEG C, carry out at room temperature using baking oven
Redrying 26h, obtains PVC wood plastic product.
Embodiment 3
(1) surface of the polypropylene (PP) wood moulding base material is polished using 240# sand paper；
(2) corona treatment is carried out to the PP wood mouldings base material after polishing in step (1) using plasma cleaner, its
In, the volume of the plasma cleaner is 8 liters, and radio-frequency power supply power is 600 watts, and rf frequency is 40KHz, and operating current is
1.0A；The time of the corona treatment is 5min, and temperature is 25 DEG C, and oxygen flow is 40mL/min, and vacuum is
0.8MPa；
(3) it is priming paint for 20s thermoplastic acrylic resin to use viscosity, and the priming paint is filtered with the paint of 250 mesh
It is placed in after net filtration in spray gun, basecoat paint processing is carried out to the PP wood mouldings base material after the processing of step (2) plasma, then
18min is dried to the PP wood moulding base materials after basecoat paint processing under the conditions of 65 DEG C using baking oven；Wherein, institute is supplied
The pressure for stating spray gun is 0.4Mpa, and the nozzle diameter of the spray gun is 1.5mm, and the coating cloud emission direction of the priming paint is perpendicular to quilt
Spray plane, the nozzle of the spray gun is with being 25cm by the distance of spray plane, and the quantity for spray of the priming paint is 125g/m2；
(4) water coating film paper is lain against on the water surface of the upper film groove of thermostatted water transfer, the figure of the water coating film paper
Upward, the edge of the water coating film paper is fixed using art designing's paper wide 0.5cm for literary layer, then with Boards wall in phase
To both sides, stand 5min, wherein, water temperature be 35 DEG C；Activator is sprayed at the water coating film paper surface, to the figure
Literary layer is swum on the water surface in free state, it is ensured that the picture and text layer and film paper of the water coating film paper are kept completely separate；By step
(3) dried PP wood mouldings base material enters water with 50 ° of angle in, is transferred to picture and text layer using hydraulic pressure described dried
PP wood moulding substrate surfaces；The PP wood-plastic products after water coating transfer process are washed using water transfer bath rifle, then adopted
8min is dried under the conditions of 65 DEG C with baking oven, PP wood moulding head products are obtained；
(5) PP wood mouldings head product progress obtained successively according to step (2) and step (3) methods described to step (4) etc.
Gas ions processing and finish paint spray treatment, then carry out drying 4min for the first time under the conditions of 70 DEG C, carry out at room temperature using baking oven
Redrying 24h, obtains PP wood plastic products.
Comparative example 1
The plasma treatment step to the wood moulding base material after polishing and the progress of wood moulding head product is dispensed, according to embodiment
1~3 method, respectively obtains PE wood plastic products, PVC wood plastic product and PP wood plastic products.
Comparative example 2
The corona treatment for replacing carrying out to the wood moulding base material after polishing and wood moulding head product is handled using chemical reagent
Step, according to the method for embodiment 1~3, respectively obtains PE wood plastic products, PVC wood plastic product and PP wood plastic products；The chemistry
Chemical reagent (PE surface conditioning agents, PVC surface inorganic agent and PP surface conditioning agents) is specifically sprayed on described by agent treatment
Wood moulding base material (PE wood mouldings base material, PVC wood molding base and PP wood mouldings base material) and (the PE wood moulding primiparity of wood moulding head product after polishing
Product, PVC wood plastic head product and PP wood mouldings head product) surface, wherein, spray describedization according to the method for the finish paint spray treatment
Learn reagent.
To the embodiment of the present invention 1~3 provide corona treatment after wood moulding base material with it is undressed in comparative example 1
The surface tension (unit is dynes per centimeter) of the wood moulding base material after chemical reagent processing is used to enter in wood moulding base material and comparative example 2
Row test, the results are shown in Table 1.
The surface tension test result of the different wood moulding base materials of table 1
As shown in Table 1, compared with comparative example 1 and 2, the wood moulding base after the corona treatment in the embodiment of the present invention 1~3
Material has higher surface tension, up to 50~55 dynes per centimeters (dyn/cm), by increasing capacitance it is possible to increase surface energy, and then effectively improves
Adhesive force between each layer.
In wood plastic product and comparative example 1 after the corona treatment provided using cross-hatching the embodiment of the present invention 1~3
The adhesive force of wood plastic product finish paint after being handled in undressed wood plastic product and comparative example 2 using chemical reagent is surveyed
Examination, specific detection method and ranking are carried out with reference to national standard GBT4893.4-2013, and 0 grade preferably, and 5 grades worst, the results are shown in Table
2。
The different wood plastic product surface paint film adhesion test results of table 2
As shown in Table 2, compared with comparative example 1 and 2, the wood moulding system after corona treatment in the embodiment of the present invention 1~3
Product surface paint film adhesion is stronger, and grade illustrates that corona treatment can significantly improve water coating transfer interlayer attached up to 0 grade
Put forth effort.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of water coating transfers the preparation method of wood plastic product, comprise the following steps：
(1) corona treatment is carried out to wood moulding base material；
(2) the wood moulding base material after the corona treatment for obtaining the step (1) enters water-filling coating transfer process, obtains primiparity
Product；
(3) head product for obtaining the step (2) carries out corona treatment, obtains water coating transfer wood plastic product；
The gas of corona treatment described in step (1) and step (3) is oxygen；
Corona treatment described in step (1) and step (3) uses plasma cleaner, the middle radio frequency work(of plasma cleaner
Rate is 600W, and operating current is 1.0~1.2A.
2. according to the method described in claim 1, it is characterised in that step (1) and step (3) corona treatment are penetrated
Frequent rate is 40KHz.
3. method according to claim 1 or 2, it is characterised in that the time of step (1) described corona treatment is 5
~30min.
4. method according to claim 3, it is characterised in that the temperature of step (1) described corona treatment is 25~
65℃。
5. method according to claim 1 or 2, it is characterised in that the time of step (3) described corona treatment is 5
~30min.
6. method according to claim 5, it is characterised in that the temperature of step (3) described corona treatment is 25~
65℃。
7. according to the method described in claim 1, it is characterised in that carry out described in step (1) before corona treatment, to institute
State wood moulding base material and carry out polishing pretreatment.
8. according to the method described in claim 1, it is characterised in that carry out described in step (2) before water coating transfer process, will
Wood moulding base material after the corona treatment carries out basecoat paint processing.
9. according to the method described in claim 1, it is characterised in that carry out described in step (3) after corona treatment, incite somebody to action etc.
Head product after gas ions processing carries out finish paint spray treatment, obtains water coating transfer wood plastic product.
10. the water coating transfer wood plastic product that any one of claim 1~9 methods described is prepared.
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| CN201610629881.2A CN106272802B (en) | 2016-08-03 | 2016-08-03 | A kind of water coating transfer wood plastic product and preparation method thereof |
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| CN201610629881.2A CN106272802B (en) | 2016-08-03 | 2016-08-03 | A kind of water coating transfer wood plastic product and preparation method thereof |
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| CN106272802B true CN106272802B (en) | 2017-11-07 |
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| CN108044750A (en) * | 2017-11-22 | 2018-05-18 | 中国林业科学研究院木材工业研究所 | A kind of method for improving wood surface paint film adhesive force |
| CN111167687A (en) * | 2019-12-31 | 2020-05-19 | 杭州华聚复合材料有限公司 | Novel PU quick-drying coating process for efficient thermoplastic composite board and composite board prepared by same |
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| CN101402295A (en) * | 2008-09-03 | 2009-04-08 | 张艳 | Process for covering water transfer printing on wood plastic, plastic and metallic products |
| CN103804940A (en) * | 2014-02-21 | 2014-05-21 | 福建农林大学 | Atmospheric pressure cold plasma modifying method for plant fiber and application of modifying method in wood-plastic composite material |
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