CN107414970A - A kind of preparation method of imitative burr Recombinant Wood fancy veneer - Google Patents
A kind of preparation method of imitative burr Recombinant Wood fancy veneer Download PDFInfo
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- CN107414970A CN107414970A CN201710371479.3A CN201710371479A CN107414970A CN 107414970 A CN107414970 A CN 107414970A CN 201710371479 A CN201710371479 A CN 201710371479A CN 107414970 A CN107414970 A CN 107414970A
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- veneer
- imitative
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- burr
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
- B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D3/00—Veneer presses; Press plates; Plywood presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
Abstract
The invention provides a kind of preparation method of imitative burr Recombinant Wood fancy veneer, comprise the following steps：(1) log jagsaw is cut, peeling, end-blocking glue is brushed at both ends, and after normal temperature cure 26 hours, then rotary-cut or slicing be into blank veneer, veneer again through bleaching, dyeing, drying process obtains the veneer A that moisture content is 6~16%；The brushing amount of the end-blocking glue is 20 30g/m2；(2) double spread, assembly, cold pressing treatment are carried out to 35 veneer As to obtain scientific and technological flitch M, then 57 groups of science and technology flitch M are placed on pressing machine, is pressed into the scientific and technological flitch N with concaveconvex shape；(3) by scientific and technological flitch N radially 2 10o slicings.Method provided by the present invention can produce imitative natural timber decorative pattern and the fancy veneer of knot, and by the flexible combination of die unit, can produce the fancy veneer of a variety of decorative patterns, and the fancy veneer crack resistence effect produced is good, is easy to store and reprocesses.
Description
Technical field
The invention belongs to wood processing technique field, and in particular to a kind of preparation method of Recombinant Wood fancy veneer, especially
It is related to a kind of preparation method of imitative burr Recombinant Wood fancy veneer.
Background technology
Recombinant material（Also known as " Recombinant Wood "）It is using the veneer of common tree lumber as main raw material(s), mixed colours by veneer,
A kind of texture with natural rare tree timber that the technologies such as lamination, moulded glued shaping are fabricated, decorative pattern, the spy such as color
The novel wooden decorative panel square bar of property or other art patterns.Moulded glued shaping is that recombinant material product reaches layout requirement
Critical process, realize this process usually using mould.
As recombinant material kind is constantly weeded out the old and bring forth the new, up to more than 1400, supporting mould also accordingly updates existing kind,
Mould disclosed in Chinese patent ZL2008201715529, is made up of upper die and lower die, and the die face of upper die and lower die is respectively recessed
The convex continuous asperities being engaged, the high-quality veneer of imitative precious wood decorative pattern, but the patent institute can be produced with common fast growing wood
Disclosed mould can not produce the knot effect of natural timber, and mould is single, need to correspond, and single mould can only produce
The veneer of single decorative pattern, existing production requirement far can not be met.
The content of the invention
The invention provides a kind of preparation method of imitative burr Recombinant Wood fancy veneer, imitative natural timber decorative pattern can be produced
With the fancy veneer of knot, and the fancy veneer of a variety of decorative patterns by the flexible combination of die unit, can be produced, while institute
The fancy veneer crack resistence effect of production is good, is easy to store and reprocesses.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of preparation method of imitative burr Recombinant Wood fancy veneer, comprises the following steps：
(1) log jagsaw is cut, peeling, end-blocking glue is brushed at both ends, and after normal temperature cure 2-6 hours, then rotary-cut or slicing are into hair
Base veneer, veneer again through bleaching, dyeing, drying process obtain the veneer A that moisture content is 6~16%；The brushing of the end-blocking glue
Measure as 20-30g/m2；
(2) 3-5 obtained by step (1) veneer As are carried out with double spreads, assembly, cold pressing treatment and obtains scientific and technological flitch M, then by 5-
7 groups of science and technology flitch M are placed on pressing machine, are pressed into the scientific and technological flitch N with concaveconvex shape；
(3) by scientific and technological flitch N, radially 2-10o slicings obtain imitative burr Recombinant Wood fancy veneer；
The mould of the cold pressing includes upper die and lower die, it is characterised in that the upper die and lower die are respectively by several mould lists
Member composition, the die unit include pedestal, die body and die face, and the pedestal is fixedly connected with die body, two of the die body
Adjacent side is provided with tenon, and another two adjacent side is provided with the through-going recess corresponding with tenon, and adjacent molds unit passes through tenon
Head is connected with the mating reaction of through-going recess, and the outside of the mould is provided with several first locking members and several second locks
Tight part, the adjacent molds unit positioned at the outside of mould are locked by the mating reaction of the first locking member and the second locking member again
Tightly, the die face of the upper die and lower die is respectively the concavo-convex continuous asperities being engaged, and can be led between the die unit
Cross tenon and through-going recess any combination；
The die face of the upper mould is provided with several mastoid process, and the mastoid process plants the mould into upper mould by screw
Face.
Upper die and lower die by any combination of die unit, can realize more changes of mould asperities, so as to raw
The high-quality veneer of output difference decorative pattern, meets the needs of diversification and personalized production, while reduces mould development design
In the cycle, save production cost.
By the effect of mastoid process, in bonding processes, form what is matched with mastoid process in board surface
Impression, then through tilting slicing, the imitative pattern that scabs of generation, the decorative pattern of the more life-like natural precious timber of imitation.
Preferably, described asperities are zigzag or waveform.
Preferably, described papilla bottom is circular or ellipse, the bottom size of the mastoid process
It it is highly 3 to 10 millimeters for 5 to 20 millimeters.The bottom size of mastoid process need to be close with the size that scabs of natural tree,
Therefore need to select suitable size.The height of mastoid process determines its degree in board surface impression, highly excessive,
Impression is too deep, wood boards may be caused to rupture；Highly too small, impression is excessively shallow, and wood boards can not produce the pattern effect that scabs.
Preferably, described log anticracking end-blocking glue is made up of the component of A, B two, the component A is by following parts by weight
Component composition：Resin 20-30 parts, hydroxymethyl cellulose 3-8 parts, emulsifying agent 1-3 parts, defoamer 1-3 parts containing reactive hydrogen, cover
Take off native 5-10 parts and ethyl acetate 25-35 parts；
The B component is made up of the component of following parts by weight：Isocyanates 15-25 parts, modified rosin 5-12 and ethyl acetate
20-30 parts.
It is further preferred that the resin containing reactive hydrogen is polyoxypropyleneglycol, PPOX triol or poly- tetrahydrochysene furan
Mutter glycol.
It is further preferred that described emulsifying agent is polyoxyethylene oleic acid ester or sorbitan fatty acid ester.
It is further preferred that the defoamer is silicone emulsion, polyoxyethylene polyoxypropylene pentaerythrite ether, polyoxyethylene polyoxy third
Alcohol amidogen ether, polypropylene glycerol aether or dimethyl silicone polymer.
It is further preferred that the preparation method of described modified rosin comprises the following steps：
Rosin is dissolved in etoh solvent, adds polyethylene glycol, regulation reaction solution pH is 8-9, and it is small to be heated to back flow reaction 2-4
Shi Hou, room temperature is cooled to, is evaporated under reduced pressure and removes solvent, residue is in 50-60 DEG C of vacuum drying, then is ground into 80-200 mesh powder
As modified rosin.
It is further preferred that the mass ratio of described rosin, ethanol and polyethylene glycol is 1:10-20:0.2-0.4.
It is further preferred that the mean molecule quantity of described polyethylene glycol is 400-800, mean molecule quantity is 400-800 poly- second
Glycol is liquid, and the content of terminal hydroxy group is higher, helps to increase the grafting rate of resin acid in rosin.
End-blocking glue provided by the present invention is a kind of bicomponent polyurethane coating, is brushed behind veneer end, cold curing
Layer protecting film is formed, can effectively prevent that log veneer is damaged.Hydroxymethyl cellulose and the cellulose in log veneer and half are fine
It is preferable to tie up plain materials compatibility, by increasing capacitance it is possible to increase block adhesion strength of the glue on log veneer surface, effectively prevent that blocking glue strips off.
The addition of montmorillonite can improve the adhesion strength of end-blocking glue, improve its adhesion property.
The main component of rosin is resin acid, accounts for 90% or so, the addition of rosin helps to improve the toughness and stream of end-blocking glue
Dynamic property, while log veneer can be played a part of to moisten maintenance, insect prevention.Rosin is modified through polyethylene glycol, helps to draw
Enter high polymer long chain structure, increase its compatibility with other components, while in intermolecular formation network structure, be favorably improved
Block the toughness of glue.
Beneficial effects of the present invention are：
1st, imitative natural timber decorative pattern and the fancy veneer of knot can be produced by method provided by the present invention, and can passed through
The flexible combination of die unit, produces the fancy veneer of a variety of decorative patterns, while the fancy veneer crack resistence effect produced is good,
It is easy to store and reprocesses.
2nd, the mould of cold pressing of the present invention, its upper die and lower die are made up of several die units respectively, can be with
By any combination of die unit, make its die face that there are a variety of different asperities patterns, so as to produce the excellent of different decorative patterns
Matter veneer, meets the needs of diversification and personalized production, while reduces the cycle of mould development design, saves and is produced into
This.
3rd, end-blocking glue of the present invention makees main component with two component polyurethane, easy for construction, can effectively reduce original
Veneer breakage rate, while subsequent handling is not had an impact, wherein containing hydroxymethyl cellulose, original can be penetrated into very well
Veneer top layer, prevent that blocking glue strips off.
Brief description of the drawings
Fig. 1 is the structural representation of cold stamping die.
Fig. 2 is the structural representation when die unit of upper mould is inverted.
Fig. 3 is the veneer schematic diagram that embodiment 1 is produced.
In figure, 1, upper mould, 2, lower mould, 3, die face, 4, pedestal, the 5, first locking member, the 6, second locking member, 7, tenon, 8,
Through-going recess, 9, mastoid process, 10, die body.
Embodiment
The present invention is described in further detail with reference to embodiments.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected in the right of invention by Patent Law.
The cold stamping die of embodiment 1
A kind of recombinant material modular mold, including upper mould 1 and lower mould 2, the upper mould 1 and lower mould 2 are respectively by 10 mould lists
Member composition, the die unit include pedestal 4, die body 10 and die face 3, and the pedestal 4 is fixedly connected with die body 10, the die body
10 two adjacent sides are provided with tenon 7, another two adjacent side be provided with it is corresponding with tenon 7 run through through-going recess 8, it is adjacent
Die unit is connected by the mating reaction of tenon 7 and through-going recess 8, and the outside of the mould is provided with several the first lockings
Part 5 and several second locking members 6, the adjacent molds unit positioned at the outside of mould pass through the first locking member 5 and the second lock again
The mating reaction of tight part 6 and lock, the die face 3 of the upper mould 1 and lower mould 2 is respectively the concavo-convex continuous asperities being engaged,
It can be combined between the die unit by tenon 7 and through through-going recess 8；
The die face 3 of the upper mould 1 is provided with several mastoid process 9, and the mastoid process 9 is planted into upper mould 1 by screw
Die face 3, the bottom of mastoid process 9 for circle, its bottom size be 12 millimeters, be highly 8 millimeters；The die unit
Length be 400 millimeters, width be 150 millimeters, the die body is integrally formed.
The log anticracking of embodiment 2 blocks glue
(1) 100g rosin is dissolved in 1200g etoh solvents, adds 30g polyethylene glycol 400s, regulation reaction solution PH is 8, is added
After heat to back flow reaction 3 hours, room temperature is cooled to, is evaporated under reduced pressure and removes solvent, residue is in 55 DEG C of vacuum drying, then is ground into
100 mesh powder are modified rosin.
(2) a kind of log end-blocking glue of anti-veneer end cracking, is made up of, the component A is by following weight the component of A, B two
The component composition of number：25 parts of polyoxypropyleneglycol, 5 parts of hydroxymethyl cellulose, 2 parts of polyoxyethylene oleic acid ester, polyoxyethylene
30 parts of 1 part of polyoxypropylene pentaerythrite ether, 8 parts of montmorillonite and ethyl acetate；
The B component is made up of the component of following parts by weight：20 parts of isocyanates, 10 parts of modified rosin and ethyl acetate 20
Part.
The log anticracking of embodiment 3 blocks glue
(1) 100g rosin being dissolved in 1000g etoh solvents, adds 40g Macrogol 600s, regulation reaction solution PH is 8.5,
After being heated to back flow reaction 2 hours, room temperature is cooled to, is evaporated under reduced pressure and removes solvent, residue is in 50 DEG C of vacuum drying, then grinds
It is modified rosin into 80 mesh powder.
(2) a kind of log end-blocking glue of anti-veneer end cracking, is made up of, the component A is by following weight the component of A, B two
The component composition of number：30 parts of PPOX triol, 3 parts of hydroxymethyl cellulose, 1 part of sorbitan fatty acid ester, polyoxy
25 parts of 2 parts of ethene polyoxy propyl alcohol amidogen ether, 5 parts of montmorillonite and ethyl acetate；
The B component is made up of the component of following parts by weight：25 parts of 15 parts of isocyanates, modified rosin 5 and ethyl acetate.
The log anticracking of embodiment 4 blocks glue
(1) 100g rosin is dissolved in 2000g etoh solvents, adds 20g polyethylene glycol-800s, regulation reaction solution PH is 9, is added
After heat to back flow reaction 4 hours, room temperature is cooled to, is evaporated under reduced pressure and removes solvent, residue is in 60 DEG C of vacuum drying, then is ground into
200 mesh powder are modified rosin.
(2) a kind of log end-blocking glue of anti-veneer end cracking, is made up of, the component A is by following weight the component of A, B two
The component composition of number：20 parts of polytetrahydrofuran diol, 8 parts of hydroxymethyl cellulose, 3 parts of sorbitan fatty acid ester, emulsification
35 parts of 3 parts of silicone oil, 10 parts of montmorillonite and ethyl acetate；
The B component is made up of the component of following parts by weight：25 parts of isocyanates, 12 parts of modified rosin and ethyl acetate 30
Part.
Embodiment 5
A kind of preparation method of imitative burr Recombinant Wood fancy veneer, comprises the following steps：
(1) log jagsaw is cut, peeling, end-blocking glue is brushed at both ends, and after normal temperature cure 3 hours, then rotary-cut or slicing are into blank
Veneer, veneer again through bleaching, dyeing, drying process obtain the veneer A that moisture content is 6~16%；The brushing amount of the end-blocking glue
For 25g/m2；
(2) double spread, assembly, cold pressing treatment are carried out to 4 veneer As obtained by step (1) and obtains scientific and technological flitch M, then by 7 groups
Scientific and technological flitch M is placed on pressing machine, is pressed into the scientific and technological flitch N with concaveconvex shape；
(3) by scientific and technological flitch N, radially 10o slicings obtain imitative burr Recombinant Wood fancy veneer.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of preparation method of imitative burr Recombinant Wood fancy veneer, it is characterised in that the preparation method comprises the following steps：
(1) log jagsaw is cut, peeling, end-blocking glue is brushed at both ends, and after normal temperature cure 2-6 hours, then rotary-cut or slicing are into hair
Base veneer, veneer again through bleaching, dyeing, drying process obtain the veneer A that moisture content is 6~16%；The brushing of the end-blocking glue
Measure as 20-30g/m2；
(2) 3-5 obtained by step (1) veneer As are carried out with double spreads, assembly, cold pressing treatment and obtains scientific and technological flitch M, then by 5-
7 groups of science and technology flitch M are placed on pressing machine, are pressed into the scientific and technological flitch N with concaveconvex shape；
(3) by scientific and technological flitch N, radially 2-10o slicings obtain imitative burr Recombinant Wood fancy veneer；
The mould of the cold pressing includes upper mould (1) and lower mould (2), and the upper mould (1) and lower mould (2) are respectively by several mould lists
Member composition, the die unit include pedestal (4), die body (10) and die face (3), the pedestal (4) and the fixed company of die body (10)
Connect, two adjacent sides of the die body (10) are provided with tenon (7), and another two adjacent side is provided with corresponding with tenon (7)
Through-going recess (8), adjacent molds unit are connected by the mating reaction of tenon (7) and through-going recess (8), outside the mould
Side is provided with several first locking members (5) and several second locking members (6), positioned at the outside of mould adjacent molds unit again
Locked by the mating reaction of the first locking member (5) and the second locking member (6), the die face of the upper mould (1) and lower mould (2)
(3) it is respectively the concavo-convex continuous asperities being engaged, can passes through tenon (7) and through-going recess between the die unit
(8) it is combined；
The die face (3) of the upper mould (1) is provided with several mastoid process (9), and the mastoid process (9) is planted by screw
Enter the die face (3) of upper mould (1).
2. the preparation method of imitative burr Recombinant Wood fancy veneer as claimed in claim 1, it is characterised in that described asperities
For zigzag or waveform.
3. the preparation method of imitative burr Recombinant Wood fancy veneer as claimed in claim 1, it is characterised in that described mamillary
Projection (9) bottom is circular or ellipse, and the bottom size of the mastoid process (9) is 5 to 20 millimeters, is highly 3 to 10
Millimeter.
4. the preparation method of imitative burr Recombinant Wood fancy veneer as claimed in claim 1, it is characterised in that described log is prevented
Split end-blocking glue to be made up of the component of A, B two, the component A is made up of the component of following parts by weight：Resin 20-30 containing reactive hydrogen
Part, hydroxymethyl cellulose 3-8 parts, emulsifying agent 1-3 parts, defoamer 1-3 parts, montmorillonite 5-10 parts and ethyl acetate 25-35 parts；
The B component is made up of the component of following parts by weight：Isocyanates 15-25 parts, modified rosin 5-12 and ethyl acetate
20-30 parts.
5. the preparation method of imitative burr Recombinant Wood fancy veneer as claimed in claim 4, it is characterised in that described contains activity
The resin of hydrogen is polyoxypropyleneglycol, PPOX triol or polytetrahydrofuran diol.
6. the preparation method of imitative burr Recombinant Wood fancy veneer as claimed in claim 4, it is characterised in that described emulsifying agent
For polyoxyethylene oleic acid ester or sorbitan fatty acid ester.
7. the preparation method of imitative burr Recombinant Wood fancy veneer as claimed in claim 4, it is characterised in that the defoamer is
Silicone emulsion, polyoxyethylene polyoxypropylene pentaerythrite ether, polyoxyethylene polyoxy propyl alcohol amidogen ether, polypropylene glycerol aether or poly- two
Methylsiloxane.
8. the preparation method of imitative burr Recombinant Wood fancy veneer as claimed in claim 4, it is characterised in that described modified pine
Fragrant preparation method comprises the following steps：
Rosin is dissolved in etoh solvent, adds polyethylene glycol, regulation reaction solution PH is 8-9, and it is small to be heated to back flow reaction 2-4
Shi Hou, room temperature is cooled to, is evaporated under reduced pressure and removes solvent, residue is in 50-60 DEG C of vacuum drying, then is ground into 80-200 mesh powder
As modified rosin.
9. the preparation method of imitative burr Recombinant Wood fancy veneer as claimed in claim 4, it is characterised in that described rosin,
The mass ratio of ethanol and polyethylene glycol is 1:10-20:0.2-0.4.
10. the preparation method of imitative burr Recombinant Wood fancy veneer as claimed in claim 4, it is characterised in that described poly- second
The mean molecule quantity of glycol is 400-800.
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| CN201710371479.3A CN107414970A (en) | 2017-05-24 | 2017-05-24 | A kind of preparation method of imitative burr Recombinant Wood fancy veneer |
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Application publication date: 20171201 |