CN107309982B - A kind of preparation method without curling plastic film enhancing flexible decoration veneer - Google Patents
A kind of preparation method without curling plastic film enhancing flexible decoration veneer Download PDFInfo
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- CN107309982B CN107309982B CN201710478498.6A CN201710478498A CN107309982B CN 107309982 B CN107309982 B CN 107309982B CN 201710478498 A CN201710478498 A CN 201710478498A CN 107309982 B CN107309982 B CN 107309982B
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- plastic film
- veneer
- flexible decoration
- curling
- male
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
Abstract
The invention discloses a kind of preparation methods without curling plastic film enhancing flexible decoration veneer, include the following steps: to stack plastic film and decorative veneer to form composite blank.The upper and lower surfaces of the composite blank are added into antiadhesion barrier respectively, are subsequently placed in book moulding in male and female mold, the male and female mold with antiadhesion barrier is placed in hot press to carry out hot pressing compound, then release and are cooled to room temperature；Or the upper and lower surfaces of the composite blank are added into antiadhesion barrier respectively, in composite blank bottom surface pading plate or industrial felt with antiadhesion barrier, then it is compound that it is placed in progress hot pressing in hot press again, composite plate blanks are taken out to obtain after release, and the composite plate blanks are put into male and female mold and are reversely cooled to room temperature.Obtaining after demoulding processing enhances flexible decoration veneer without curling plastic film.The good, water-tolerant prepared by the present invention without curling plastic film enhancing flexible decoration veneer flexibility and planarization, seep through, does not avoid free formaldehyde release problem, has a good application prospect.
Description
Technical field
The invention belongs to wood processing technique fields.More particularly, to a kind of thin without curling plastic film enhancing flexible decorative
The preparation method of wood.
Background technique
China is woodwork manufacture big country, wherein the production capacity of timber, wooden furniture and timber floor etc. and the world output value Jun Ju the
One.With being constantly progressive for rapid development of economy and living standard, China's furniture industry and interior design are in recent years
The trend that rapid growth is presented, has driven the wilderness demand to wood decorative material, and China's timber resource shortage, especially precious
Your timber resources is even more that supply falls short of demand.It is wooden at present for the added value of product and rare tree timber utilization rate for improving woodwork
Product surface finish material generallys use flexible decoration veneer, i.e., is combined by the good reinforcing material of different flexibilities with veneer,
Its flexibility is good, transverse tensile strength is high, especially suitable for woodwork compromise face veneer, reaches incrustation purpose.Market
Common non-woven fabrics or paper substrates flexible decoration veneer waterproofness be poor, easy seep through, " finishing process are complicated, and the glue that compound tense uses
Glutinous agent usually contains that formaldehyde is not environmentally friendly enough, and novel plastic film substrate flexibility decorative veneer preparation method is come into being as a result,.However, modeling
Film is thermoplastic material, and melting temperature reaches 130 DEG C, significant with the thermal expansion coefficient difference of both decorative veneers, about
Thus 10 times or so of the latter easily cause plastic film under the conditions of high temperature hot pressing to enhance flexible decoration veneer to the curling on the inside of plastic film
Deformation, is unfavorable for industrialized production and use.
Summary of the invention
In order to solve the above technical problems, enhancing flexible decoration veneer without curling plastic film the purpose of the present invention is to provide a kind of
Preparation method.Fixing means is reversely cooled down using male and female mold immediately, i.e., the composite blank of plastic film and decorative veneer is in hot pressing
Its internal sizes pin structure is fixed in recombination process, until release is cooled and shaped, thus realizing composite blank high warm
While pressing compound, solve the problems, such as that its is Texturized.This method can enhance flexible decoration veneer industrialized production for propulsion plastic film
Technical conditions are provided, there is very big research significance and application value.
A kind of preparation method of no curling, includes the following steps:
1) it stacks the decorative veneer of plastic film and rotary-cut or slicing to form composite blank；
2) upper and lower surfaces of the composite blank are added into antiadhesion barrier respectively, are subsequently placed in book moulding in male and female mold；
3) male and female mold of step 2) is placed in hot press to carry out hot pressing compound, then release and is cooled to room temperature, takes off
Obtaining after mould processing enhances flexible decoration veneer without curling plastic film.
A kind of preparation method without curling plastic film enhancing flexible decoration veneer, can also be achieved by the steps of:
1) it stacks the decorative veneer of plastic film and rotary-cut or slicing to form composite blank；
2) upper and lower surfaces of the composite blank are added into antiadhesion barrier respectively, are padded in the composite blank bottom surface with antiadhesion barrier
Steel plate or industrial felt, are then placed in hot press that carry out hot pressing compound again, and composite plate blanks are taken out to obtain after release；
3) composite plate blanks are put into male and female mold and are reversely cooled to room temperature, obtained after demoulding processing and moulded without curling
Film enhances flexible decoration veneer.
Further, the plastic film be polyethylene film, polypropylene screen or other plastic materials, plastic film with a thickness of 0.02-
0.05mm。
Further, the rotary-cut or slicing decorative veneer with a thickness of 0.06-0.3mm, moisture content is 8- after drying
15%.
Further, the compound temperature of the hot pressing is 110-160 DEG C, and the hot pressing compound time is 2-7min, and hot pressing is compound
Pressure be 0.4-1.2Mpa；It is the process of a high-temperature fusion that hot pressing of the invention is compound.
Further, the male and female mold is metal or the material that other thermal conductivity are good, melting temperature is high, the width of male and female mold
Degree is greater than the breadth of composite blank, guarantees its rate of heat transfer and energy.
Further, cause to offset plastic film and decorative veneer hot pressing Compound cooling after-contraction displacement difference to the greatest extent
It is Texturized, the radius of curvature of the male and female mold is 50-300mm, and the radius of curvature of male and female mold of the present invention and hot pressing are multiple
It is related to close breadth size of temperature and composite blank etc..
Further, the antiadhesion barrier is polytetrafluoroethylene (PTFE) antiadhesion barrier；Further, in order to make hot press preferably conduct heat,
The antiadhesion barrier with a thickness of 0.1mm-2mm.
Further, composite blank or composite plate blanks are placed in male and female mold cavity along its decorative veneer band direction；
And the decorative veneer of composite blank or composite plate blanks fits with punch-pin, plastic film fits with cavity plate.
Further, the demoulding handles the composite blank referred to by with antiadhesion barrier or composite plate blanks and takes off from male and female mold
Then mould again tears it down plastic film enhancing flexible decoration veneer from antiadhesion barrier, horizontal stacks or be rolled into a roll to use for veneer.
Further, the decorative veneer with a thickness of 0.06-0.3mm, moisture content 8-15%.
Further, the release time is 5-300s.
Further, demoulding time is 3-120s in the demoulding treatment process.
The present invention is joined by techniques such as radius of curvature, hot pressing combined temp, release time and demoulding times to concave-convex mold
Several Collaborative Controls is completed instant reversed cooling of the plastic film enhancing flexible decoration veneer in high-temperature fusion and is fixed, to guarantee
Product is without curling when mould unloading.
The plastic film enhancing flexible decoration veneer prepared compared with the existing technology, it is prepared by the present invention soft without curling plastic film enhancing
Property release of the decorative veneer without free formaldehyde.
Beneficial effects of the present invention are as follows:
1, flexible decoration veneer is enhanced without curling plastic film using method preparation of the invention, not only can effectively solve plastic film with
Decorative veneer high temperature hot pressing crimp, and mold is simple, high production efficiency, and it is real to be conducive to plastic film enhancing flexible decoration veneer
Existing industrialized production.
2, the good, water-tolerant prepared by the present invention without curling plastic film enhancing flexible decoration veneer flexibility and planarization, no
Seep through avoids free formaldehyde release problem, improves utilization rate of precious timber, have a good application prospect.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 shows hot pressing compound schematic diagram of the present invention preparation without curling plastic film enhancing flexible decoration veneer.
Wherein, 1, upper hot pressboard, 2, cavity plate, 3, the composite blank with antiadhesion barrier, 4, punch-pin, 5, lower hot pressing board.
Specific embodiment
In order to illustrate more clearly of the present invention, the present invention is done further below with reference to preferred embodiments and drawings
It is bright.Similar component is indicated in attached drawing with identical appended drawing reference.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
Embodiment 1
1) slicing is molding with a thickness of 0.3mm, breadth is that the natural black walnut decorative veneer of 250mm is dried to moisture content
It is 10%；It is that 250mm is compound that the low density polyethylene films of natural black walnut decorative veneer and breadth 240mm, which are stacked, and to form breadth
Blank；
2) concave-convex mold for being 135-260mm according to the breadth of composite blank and hot pressing combined temp condition preparation radius of curvature
The upper and lower surfaces of composite blank, are then added the polytetrafluoroethylene (PTFE) antiadhesion barrier of 0.4mm thickness by tool respectively；Again by it along composite billet
Decorative veneer band direction is placed in book moulding in male and female mold in material；
3) male and female mold with composite blank is placed in hot press under conditions of 150 DEG C of temperature, pressure 0.8MPa
The compound 360s of hot pressing is carried out, release 5s, demoulds 15s after release, so that male and female mold takes out from hot press after hot pressing is compound；
4) after the male and female mold pressure taken out is cooled to room temperature, flexible decoration veneer will be enhanced without curling plastic film from polytetrafluoro
It tears it down on ethylene antiadhesion barrier, horizontal stacks or be rolled into a roll to use for wood product surface veneer.
The crimpness radius of curvature without curling plastic film enhancing flexible decoration veneer of this method preparation is infinitely great, surfacing
It spends.
Hot pressing compound schematic diagram of the present invention preparation without curling plastic film enhancing flexible decoration veneer is as shown in Figure 1.
Embodiment 2
1) slicing is molding with a thickness of 0.2mm, the neutral red oak decorative veneer that breadth is 300mm is dried to moisture content and is
9%；The low density polyethylene films of neutral red oak decorative veneer and breadth 280mm are stacked to form composite blank；
2) composite blank of 5-6 group is prepared by the method for step 1), the upper and lower surfaces of every group of composite blank add respectively
The polytetrafluoroethylene (PTFE) antiadhesion barrier of 0.4mm thickness；It is according to the breadth of composite blank and hot pressing combined temp condition preparation radius of curvature
The male and female mold of 115-230mm；Composite blank with polytetrafluoroethylene (PTFE) antiadhesion barrier is built up into pile, and along in composite blank
Decorative veneer band direction is placed in male and female mold cavity；
3) male and female mold equipped with composite blank is placed in hot press under conditions of 150 DEG C of temperature, pressure 1.0MPa
The compound 480s of hot pressing is carried out, release 30s, demoulds 10s after release, so that male and female mold takes out from hot press after hot pressing is compound；
4) after the pressure of the male and female mold of step 3) is cooled to room temperature, plastic film is enhanced into flexible decoration veneer from polytetrafluoroethyl-ne
It tears it down on alkene antiadhesion barrier, horizontal stacks or be rolled into a roll to use for wood product surface veneer.
The crimpness radius of curvature without curling plastic film enhancing flexible decoration veneer of this method preparation is infinitely great, surfacing
It spends.
Embodiment 3
1) slicing is molding with a thickness of 0.3mm, the natural teak decorative veneer that breadth is 300mm is dried to moisture content and is
10%；The low density polyethylene films that natural teak decorative veneer and breadth are 300mm are stacked to form composite blank；
2) the polytetrafluoroethylene (PTFE) antiadhesion barrier that the upper and lower surfaces of composite blank are added to 0.5mm thickness respectively, with antiadhesion barrier
Composite blank bottom surface pading plate；Then it is compound that the progress hot pressing in temperature 130 DEG C, pressure 0.6Mpa under the conditions of is placed in hot press again
240s；Release 90s, takes out to obtain composite plate blanks after hot pressing is compound after release；
3) concave-convex mold for being 135-270mm according to the breadth of composite blank and hot pressing combined temp condition preparation radius of curvature
Tool；Composite plate blanks are placed in male and female mold cavity along decorative veneer band direction；Reversely it is cooled to room temperature；
4) composite plate blanks are carried out to demoulding 30s from male and female mold, plastic film is enhanced into flexible decoration veneer from poly- after demoulding
It tears it down on tetrafluoroethene antiadhesion barrier, horizontal stacks or be rolled into a roll to use for wood product surface veneer.
The crimpness radius of curvature without curling plastic film enhancing flexible decoration veneer of this method preparation is infinitely great, surfacing
It spends.
Embodiment 4
1) it is first combined into Laminated flitch by the pattern of veneer by flower pears, then that slicing is molding with a thickness of 0.2mm, breadth is
It is 8%~10% that the flower pears parquets veneer of 300mm, which is dried to moisture content,；By the low-density of flower pears parquets veneer and breadth 300mm
Polyethylene film stacks to form composite blank；
2) concave-convex mold for being 135-260mm according to the breadth of composite blank and hot pressing combined temp condition preparation radius of curvature
The upper and lower surfaces of composite blank, are then added the polytetrafluoroethylene (PTFE) antiadhesion barrier of 0.3mm thickness by tool respectively, are placed in male and female mold and are folded
Synthesis type；
3) male and female mold with composite blank is placed in hot press under conditions of 140 DEG C of temperature, pressure 0.6MPa
The compound 320s of hot pressing is carried out, release 60s, demoulds 15s after release, so that male and female mold takes out from hot press after hot pressing is compound；
4) after being cooled to room temperature the male and female mold of taking-up, plastic film enhancing flexible decoration veneer is anti-sticking from polytetrafluoroethylene (PTFE)
It tears it down on film, horizontal stacks or be rolled into a roll to use for wood product surface veneer.
The crimpness radius of curvature without curling plastic film enhancing flexible decoration veneer of this method preparation is infinitely great, surfacing
It spends.
Performance test of the embodiment 5 without curling plastic film enhancing flexible decoration veneer
1) seep through degree: the surface wet condition without curling plastic film enhancing flexible decoration veneer is observed, by seep through size
It is divided into four grade discriminations, is shown in Table 1.
The seep through grade of 1 flexible decoration veneer of table
| Seep through grade | 1 | 2 | 3 | 4 |
| Seep through area | 0-10% | 10-30% | 30-50% | > 50% |
2) flexibility
200mm × 75mm will be cut into along the rift grain direction of decorative veneer respectively without curling plastic film enhancing flexible decoration veneer
Test specimen, totally 32, test is crimped on different-diameter rod iron respectively.Rod iron long 100mm, diameter 2mm, 4mm, 6mm,
8mm, 10mm, 12mm and 14mm, rod iron diameter when being ruptured with the curling of each test specimen characterize its flexibility.
3) peel strength
The test specimen of 200mm × 25mm will be cut into along decorative veneer rift grain direction without curling plastic film enhancing flexible decoration veneer,
Peel strength requires to examine according to GB/T 2791-1995 " adhesive T peeling strength test method flexible material is to flexible material "
It surveys[9].5 test specimens are taken under each test level, amount to 90.
4) transverse tensile strength
Referring to test for tensile strength in GB/T 7911-2013 " thermosetting resin impregnated paper high pressure laminated decorative board (HPL) "
Method carries out.Test specimen 5 that flexible decoration veneer be prepared into 100mm (band direction) × 20mm will be enhanced without plastic film is crimped, it is old
After putting for 24 hours, maximum load when detecting its destruction on timber mechanics universal testing machine, and tensile strength is calculated as follows: it is anti-
Load (N)/basal area (mm when tensile strength (MPa)=test specimen destroys2), results are averaged.
5) dipping and stripping performance
Flexible decoration veneer will be enhanced without curling plastic film, according to GB/T 15104-2006 " fancy veneer face artificial board "
Test specimen is prepared, and after being handled by corresponding conditions, observe between decorative veneer and plastic film that whether there is or not stripping layering phenomenons, and measured
Each side strip length, results are averaged.
Embodiment 1 to 4 is subjected to seep through degree, flexibility, dipping stripping without curling plastic film enhancing flexible decoration veneer respectively
Experiment test from intensity, transverse tensile strength and dipping and stripping performance, the results are shown in Table 2.
2 embodiment 1 to 4 of table enhances flexible decoration veneer the performance test results without curling plastic film
By table 2 it is found that it is prepared by the present invention without the enhancing of curling plastic film, flexible decoration veneer flexibility is good, water-tolerant,
Not seep through, and there is good peel strength and transverse tensile strength.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is all to belong to this hair
The obvious changes or variations that bright technical solution is extended out are still in the scope of protection of the present invention.
Claims (10)
1. a kind of preparation method without curling plastic film enhancing flexible decoration veneer, which comprises the steps of:
1) it stacks plastic film and decorative veneer to form composite blank；
2) upper and lower surfaces of the composite blank are added into antiadhesion barrier respectively, are subsequently placed in book moulding in male and female mold；
3) male and female mold of step 2 is placed in hot press to carry out hot pressing compound, then release and is cooled to room temperature, at demoulding
Obtaining after reason enhances flexible decoration veneer without curling plastic film.
2. a kind of preparation method without curling plastic film enhancing flexible decoration veneer, which comprises the steps of:
1) it stacks plastic film and decorative veneer to form composite blank；
2) upper and lower surfaces of the composite blank are added into antiadhesion barrier respectively, in the composite blank bottom surface pading plate with antiadhesion barrier
Or industrial felt, it is then placed in hot press that carry out hot pressing compound again, composite plate blanks is taken out to obtain after release；
3) composite plate blanks are put into male and female mold and are reversely cooled to room temperature, obtained after demoulding processing and increase without curling plastic film
Strong flexible decoration veneer.
3. the preparation method according to claim 1 or claim 2 without curling plastic film enhancing flexible decoration veneer, which is characterized in that institute
State plastic film be polyethylene film, polypropylene screen or other plastic materials, plastic film with a thickness of 0.02-0.05mm.
4. the preparation method according to claim 1 or claim 2 without curling plastic film enhancing flexible decoration veneer, which is characterized in that institute
Stating the compound temperature of hot pressing is 110-160 DEG C, and the hot pressing compound time is 2-7min, and the compound pressure of hot pressing is 0.4-
1.2Mpa。
5. the preparation method according to claim 1 or claim 2 without curling plastic film enhancing flexible decoration veneer, which is characterized in that institute
The radius of curvature for stating male and female mold is 50-300mm.
6. the preparation method according to claim 1 or claim 2 without curling plastic film enhancing flexible decoration veneer, which is characterized in that institute
State the material that male and female mold is metal or other thermal conductivity are good, melting temperature is high.
7. the preparation method according to claim 1 or claim 2 without curling plastic film enhancing flexible decoration veneer, which is characterized in that institute
State antiadhesion barrier be polytetrafluoroethylene (PTFE) antiadhesion barrier, antiadhesion barrier with a thickness of 0.1mm-2mm.
8. the preparation method according to claim 1 or claim 2 without curling plastic film enhancing flexible decoration veneer, sign is, will answer
It closes blank or composite plate blanks is placed in male and female mold cavity along its decorative veneer band direction；And composite blank or composite plate blanks
Decorative veneer fit with punch-pin, plastic film fits with cavity plate.
9. the preparation method according to claim 1 or claim 2 without curling plastic film enhancing flexible decoration veneer, sign is, described
Demoulding handles the composite blank referred to by with antiadhesion barrier or composite plate blanks are demoulded from male and female mold, then again enhances plastic film
Flexible decoration veneer tears it down from antiadhesion barrier, and horizontal stacks or be rolled into a roll to use for veneer.
10. the preparation method according to claim 1 or claim 2 without curling plastic film enhancing flexible decoration veneer, which is characterized in that institute
State decorative veneer with a thickness of 0.06-0.3mm, moisture content 8-15%.
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| CN201710478498.6A CN107309982B (en) | 2017-06-22 | 2017-06-22 | A kind of preparation method without curling plastic film enhancing flexible decoration veneer |
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| CN107309982B true CN107309982B (en) | 2019-07-09 |
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| CN111040651A (en) * | 2019-11-25 | 2020-04-21 | 浙江升华云峰新材股份有限公司 | Pressure-sensitive flexible veneer and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06114933A (en) * | 1992-09-30 | 1994-04-26 | Toppan Printing Co Ltd | Manufacture of decorative material |
| CN104139431A (en) * | 2014-07-22 | 2014-11-12 | 哈尔滨盛世华林科技有限公司 | Manufacturing method of anti-deformation solid wood multilayer laminated plate |
| CN105298085A (en) * | 2015-10-28 | 2016-02-03 | 嘉善贝马五金配件有限公司 | Wood-plastic floor and manufacturing method thereof |
| CN205498041U (en) * | 2016-02-17 | 2016-08-24 | 苏州洲联材料科技有限公司 | Board molding device is moulded to curved surface wood |
| CN106272877A (en) * | 2016-08-15 | 2017-01-04 | 汕头市亨德利塑胶有限公司 | A kind of for outdoor high temperature resistant wood plastic composite and preparation thereof |
-
2017
- 2017-06-22 CN CN201710478498.6A patent/CN107309982B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06114933A (en) * | 1992-09-30 | 1994-04-26 | Toppan Printing Co Ltd | Manufacture of decorative material |
| CN104139431A (en) * | 2014-07-22 | 2014-11-12 | 哈尔滨盛世华林科技有限公司 | Manufacturing method of anti-deformation solid wood multilayer laminated plate |
| CN105298085A (en) * | 2015-10-28 | 2016-02-03 | 嘉善贝马五金配件有限公司 | Wood-plastic floor and manufacturing method thereof |
| CN205498041U (en) * | 2016-02-17 | 2016-08-24 | 苏州洲联材料科技有限公司 | Board molding device is moulded to curved surface wood |
| CN106272877A (en) * | 2016-08-15 | 2017-01-04 | 汕头市亨德利塑胶有限公司 | A kind of for outdoor high temperature resistant wood plastic composite and preparation thereof |
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