CN1565818A - Method for producing hard wood composite floor - Google Patents
Method for producing hard wood composite floor Download PDFInfo
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- CN1565818A CN1565818A CN 03129654 CN03129654A CN1565818A CN 1565818 A CN1565818 A CN 1565818A CN 03129654 CN03129654 CN 03129654 CN 03129654 A CN03129654 A CN 03129654A CN 1565818 A CN1565818 A CN 1565818A
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Abstract
The invention discloses a method for producing wood composite floor which includes the following steps: prepressing the base material for not less than 20 seconds at pressure above 8MPa and temperature above 100 degree Centigrade; cooling the base material, sanding the base material according to the required thickness with grinding belt whose mesh is above 100m, then choosing one side of the base material as decorative surface, and sanding the decorative surface with grinding belt whose mesh is above 200m to obtain a base material with a thickness tolerance of +/-0.3mm and an angularity of less than 2%; combining the base material, the faced layer, the balance layer into a blank, heat pressing for not less than 20 seconds at the temperature above 150 degree Centigrade and pressure above 5Mpa; then cooling the treated base material for 8 hours or longer, cutting and machining into the finished product in the mortising machine.
Description
Technical field
The present invention relates to a kind of production method of solid wooden compound floor, especially adopt the top layer to overlay the production method of the solid wooden compound floor of resin dipping surface layer.
Background technology
Solid wooden compound floor appearance true nature, production cost is lower, makes full use of resource, and excellent performance.It has wide application and development prospect.Traditional solid wooden compound floor adopts final decoration and the protection of paint as the surface usually; after repeatedly covering with paint, lacquer, colour wash, etc. and solidify, paint decorates protective layer surperficial formation of solid wooden compound floor; there is a large amount of harmful organic volatile compounds to discharge (VOC) in the process, harm environment and operator's health.The investment of this trailing is also very big, the equipment price of common homemade painted line is generally promptly more than 600,000 RMB, and the operating procedure complexity, the material cost of paint also higher (about more than 5 yuans/square metre) causes final processing cost very high.The processing cost of qualified UV lacquer is at present about more than 15 yuans/square metre.And the anti-wear performance on the surface of paint processing is relatively poor relatively, and shock resistance is poor, and wearing and tearing scratch easily.At present people are attempting with overlaying the covering with paint processing solid wooden compound floor that resin dipping surface layer replaces paint, significantly reducing cost, and improve ornamental and surface property.For example application number is described in 02113722.6 the Chinese invention patent prospectus.The resin dipping surface layer that this class production method overlays generally is the sheet material (overlay paper, abrasion-proof paper, dipping veneer, dipping decorative paper etc.) of impregnated melamine resin, this be because low, the water-tolerant of melmac burst size of methanal, Clear ﹠ Transparent, wearability good, but melmac needs high temperature (more than 150 degrees centigrade), could fully melt, soak into, solidify to form good plasticizing layer under the high pressure in the short period.For making surface layer that better wear-resisting, scraping and wiping resistance performance be arranged, add AL in the resin dipping surface layer that overlays
2O
3Then more need strict high temperature (more than 170 degrees centigrade), high pressure (more than the 10MPa) could guarantee AL behind the high-abrasive materials such as powder
2O
3Powder and melmac flow dispersion, fusion are solidified into Clear ﹠ Transparent plasticizing surface material, play satisfied decoration and protective effect.Existing solid wooden compound floor base material mostly is to create at the temperature below 130 degrees centigrade, pressure below the 8MPa, adds man-hour overlaying resin dipping surface layer, is difficult to bear the hot pressing of HTHP, plate bursting, layering, bubbling very easily occur, structural deterioration.Simultaneously when overlaying resin dipping surface layer, base material under the effect of high temperature, high pressure is because internal density, intensity and stress heterogeneity all, the contraction distortion inequality.Its performance then is that the smooth outer surface of base material loses planarization before overlaying, and the bending of wave appears in sheet material, and band appears in the coarse injustice of plate face, concavo-convex wood grain etc., final the ornamental of facing that thoroughly destroy.Flow dispersion was not smooth when the various defectives that sheet material occurs when overlaying also caused resin to overlay, and merged to solidify unevenly, defective such as occurred spending in vain.Existing technology can't solve this contradiction: guarantee that the surface layer that overlays merges is solidified into smooth smooth, Clear ﹠ Transparent plasticizing surface material, then need particular thermal compression technology (HTHP) and when overlaying base material sheet material internal performance keep the smooth of stable uniform and surface layer.And will lose smooth smoothly under the HTHP of existing solid wooden compound floor base material when overlaying resin dipping surface layer, and and a large amount of defectives appear, finally destroy the decoration defencive function of finish coat.If the aviation special plywood that adopts HTHP to produce uses as popular type solid wooden compound floor base material, then cost is too high.The common substrate price of existing 12mm is about 40 yuans/square metre, and the aviation special plywood price of 9mm is about more than 130 yuans/square metre.Because the difficult problem of this production technology, overlay resin dipping surface layer and replace the road of the paint finish production solid wooden compound floor that this is efficient, cost is low, of fine quality almost can't advance, also greatly limited the application and the popularization of solid wooden compound floor.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of efficiently, solid wooden compound floor production method cheaply, solve the various defectives that existing base material very easily occurs when overlaying resin dipping surface layer, replace paint finish to produce solid wooden compound floor to overlay resin dipping surface layer, thereby significantly reduce the production cost of solid wooden compound floor, promote the surface aesthetic and the overall physical properties of solid wooden compound floor product.
To achieve these goals, technical scheme of the present invention comprises that a kind of method of producing solid wooden compound floor is characterized in that, described method adopts following steps:
(1) precompressed is no less than 20 seconds to base material, and described precompressed temperature is more than the 8MPa greater than 100 degrees centigrade, pressure;
(2) with after the described base material cooling, carry out the fixed thick sanding of base material with the order number greater than 100 purpose abrasive bands, the wherein one side of selecting base material is as decorative cover, with the order number greater than of the surperficial secondary sanding of 200 purpose abrasive bands to described decorative cover, make the base material thickness tolerance in ± 0.3mm, angularity is less than 2%;
(3) with behind described base material and finish coat, the balance layer assembly, with the temperature more than 150 degrees centigrade, pressure hot pressing more than the 5MPa, hot pressing time is no less than 25 seconds;
(4) will overlay facing treated base material cooling and shaping more than 8 hours, cut into hair plates;
(5) hair plates is sent into the tongue-and-groove process equipment, carrying out in length and breadth, tongue-and-groove processing is finished product.
The present invention base material carry out finish coat or protective layer last overlay first being processed; its precompressed of carrying out under the one or many specified temp pressure is handled; reduce the base material moisture content; preheating; the compression compact base material; make the base material moisture content; immanent structure; intensity density; resilience; internal stress is even; thereby promote the internal physical performance and the stability of base material; improve the shock resistance of base material; and the various defectives that base material will be occurred in finish coat or the final hot-pressing processing of protective layer reveal after precompressed fully, carry out finally overlaying of finish coat or protective layer again after removing.
Because overlays such as finish coat, protective layer and balance layer can be by overlaying processing and combine with base material under the different condition repeatedly; so prepressing procedures can be combined as a whole with the preceding processing that overlays several times of overlay, that carries out finish coat or protective layer again after surface treatment finally overlays processing.In the methods of the invention, the decorate properties of flooring product and physical property by repeatedly overlay with surface treatment after, through final the overlaying processing of completion property and determining for the last time just.
In the methods of the invention, finish coat, protective layer such as employing contain AL
2O
3Materials such as the abrasion-proof paper of powder or dipping veneer, then must be with the temperature more than 110 degrees centigrade, pressure precompressed more than the 10MPa, last completion overlays processing must be carried out with the temperature more than 170 degrees centigrade, pressure more than the 10MPa, and the time is no less than 25 seconds.
Finish coat, protective layer be not as containing AL
2O
3Powder then with the temperature more than 100 degrees centigrade, pressure precompressed more than the 8MPa, carries out last completion with the temperature more than 150 degrees centigrade, pressure more than the 5MPa and overlays processing, and hot pressing time is no less than 25 seconds.
Description of drawings
Below, with reference to accompanying drawing, for those skilled in the art that, from detailed description of the present invention, above-mentioned and other purposes of the present invention, feature and advantage will be apparent.
Fig. 1 is the schematic diagram of the embodiment of first kind of structure assembly when overlaying the facing protective layer according to the inventive method step (3);
Fig. 2 is the schematic diagram of the embodiment of second kind of structural group when overlaying the facing protective layer according to the inventive method step (3);
Fig. 3 is the schematic diagram of the embodiment of the third structural group when overlaying the decorative layer facing according to the inventive method step (3);
Fig. 4 is the schematic diagram of the embodiment of the 4th kind of structural group when overlaying the facing protective layer according to the inventive method step (3);
Fig. 5 is the schematic diagram of the embodiment of the structure assembly when adopting step (1) precompressed of the inventive method to handle.
The specific embodiment
Below in conjunction with embodiment the present invention is further described:
Embodiment 1:
1, at first base material being carried out precompressed handles:
The base material of present embodiment adopts five layers of full Liu An multi-plywood material of 11.6mm, and substrate is sent in the hot press with 175 degrees centigrade temperature, the pressure hot pressing of 25MPa, and the time is 35 seconds.Sheet material 1220mm * 2440mm angularity 4% after pressing, thickness deviation is ± 0.5mm.
2, the second, carry out sanding and handle:
The sheet material cooling that precompressed was handled was sent in the sander after 15 minutes, was that the fixed thick sanding of sheet material is carried out in 180 purpose abrasive bands with the order number, and the sand amount of cutting is 0.30mm.Select again board quality preferably one side be that plate surface sanding twice is carried out in 300 purpose abrasive bands for decorative cover with the order number, the sand amount of cutting is 0.10mm, makes the bow warping degree less than 1.5%, thickness deviation is in ± 0.2mm.
3, the 3rd, carry out the decorative layer facing:
The sheet material double face that sanding was handled is coated with modified cyanurotriamide resin, the veneer of the manual patch 0.40mm of upper surface, the Liu An veneer of lower surface patch 0.40mm, stacking are placed after 30 minutes and are sent into hot press with 120 degrees centigrade temperature, the pressure hot pressing of 7MPa, hot pressing time 300-350 second.
4, the 4th, carry out sanding and handle:
The sheet material cooling that facing was handled was sent in the sander after 30 minutes, and the decorative cover of upper surface is carried out sheet material facing sanding surface with the several 500 purpose abrasive bands of order, and the sand amount of cutting is 0.08mm.
5, the 5th, overlay the facing protective layer:
The sheet material that sanding was handled is with structure shown in Figure 4, and promptly 45 gram abrasion-proof papers 41 cover on the base material 42 assembly and send in the hot press with 190 degrees centigrade temperature, the pressure hot pressing of 22MPa, 32 seconds time.
6, the 6th, cut processing:
With overlaying the sheet material cooling and shaping 12 hours that facing handled, cut into hair plates.
7, the 7th, tongue-and-groove processing:
Hair plates is sent into the tongue-and-groove process equipment, and carrying out in length and breadth, tongue-and-groove processing is finished product.
Embodiment 2:
1, at first, carrying out the base material precompressed handles:
What the base material of present embodiment adopted is five layers of full poplar multi-layer laminate of 6mm composite plates of the medium density fibre board (MDF) (MDF) of each pressing gummed 3mm up and down, total thickness 12mm, substrate is sent in the hot press with 150 degrees centigrade temperature, the pressure hot pressing of 20MPa, and the time is 45 seconds.1220mm * the 2440mm angularity is 4% to press back sheet material, thickness deviation ± 0.6mm.
2, sanding is handled:
The sheet material cooling that precompressed was handled was sent in the sander after 15 minutes, select board quality preferably one side be decorative cover, carry out plate surface sanding twice with the several 300 purpose abrasive bands of order, the sand amount of cutting is 0.40mm, makes the sheet metal thickness tolerance in ± 0.2mm.
3, overlay the facing protective layer:
The sheet material that sanding was handled is promptly sent in the hot press with 190 degrees centigrade temperature, the pressure hot pressing of 18MPa, 30 seconds time with the order assemblies of 30 gram abrasion-proof papers 21, dipping decorative paper 22, base material 23 and dipping balance paper 24 with structure shown in Figure 2.
4, cut:
With overlaying the sheet material cooling and shaping 8 hours that facing handled, cut into hair plates.
5, tongue-and-groove processing:
Hair plates is sent into the tongue-and-groove process equipment, and carrying out in length and breadth, tongue-and-groove processing is finished product.
Embodiment 3:
1, the base material precompressed is handled:
Base materials employed is seven layers of poplar-weedtree multi-plywood material of 11.6mm, and base material sheet material is sent in the hot press with 130 degrees centigrade temperature, the pressure hot pressing of 15MPa, and the time is 40 seconds.Sheet material cooling is sent into after 30 minutes in the hot press once more with 185 degrees centigrade temperature, the pressure hot pressing of 24MPa, and the time is 30 seconds.
2, sanding is handled:
The sheet material cooling that precompressed was handled was sent in the sander after 15 minutes, carried out the fixed thick sanding of sheet material with the several 200 purpose abrasive bands of order, the sand amount of cutting is 0.40mm.One side is for decorative cover preferably to select board quality again, and to carry out plate surface sanding twice in the several 300 purpose abrasive bands of order, the sand amount of cutting is 0.10mm, makes the sheet metal thickness tolerance in ± 0.2mm.
3, decorative layer facing:
The sheet material that sanding was handled is with structure shown in Figure 3, and promptly the order assembly of the thick dipping veneer 31 of 0.3mm, base material 32 is sent into hot press with 180 degrees centigrade temperature, pressure hot pressing more than the 22MPa, 30 seconds time.
4, sanding is handled:
The sheet material cooling that facing was handled was sent in the sander after 30 minutes, and decorative cover is carried out the facing sanding surface with the several 500 purpose abrasive bands of order, and the sand amount of cutting is 0.10mm.
5, overlay the facing protective layer:
The sheet material that sanding was handled is with structure shown in Figure 4, and promptly 45 gram abrasion-proof papers 41 cover on the base material 42 assembly and send in the hot press with 190 degrees centigrade temperature, the pressure hot pressing of 22MPa, 30 seconds time.
6, cut:
With overlaying the sheet material cooling and shaping 16 hours that facing handled, cut into hair plates.
7, tongue-and-groove processing:
Hair plates is sent into the tongue-and-groove process equipment, and carrying out in length and breadth, tongue-and-groove processing is finished product.
Embodiment 4:
1, the base material precompressed is handled:
Base material is medium density fibre board (MDF) (MDF) composite board of the glued board of each pressing gummed 3mm up and down of 6mm, total thickness 12mm.Substrate is sent in the hot press with 175 degrees centigrade temperature, the pressure hot pressing of 25MPa, and the time is 35 seconds.Press back sheet material 1220mm * 2440mm angularity 2.5%, thickness deviation is ± 0.4mm.
2, sanding is handled:
The sheet material cooling that precompressed was handled was sent in the sander after 15 minutes, carried out the fixed thick sanding of sheet material with the several 180 purpose abrasive bands of order, the sand amount of cutting is 0.40mm.One side is for decorative cover preferably to select board quality again, and to carry out plate surface sanding twice in the several 300 purpose abrasive bands of order, the sand amount of cutting is 0.10mm, makes the sheet metal thickness tolerance in ± 0.2mm.
3, overlay the facing protective layer:
The sheet material that sanding was handled is with structure shown in Figure 1, promptly send in the hot press with 190 degrees centigrade temperature, the pressure hot pressing of 22MPa, 32 seconds time with 38 gram abrasion-proof papers 11,0.3mm thickness wood 12, bond paper 13, base material 14, bond paper 15 and thick Liu An veneer 16 assemblies of 0.3mm.
4, cut:
With overlaying the sheet material cooling and shaping 24 hours that facing handled, cut into hair plates.
5, tongue-and-groove processing:
Hair plates is sent into the tongue-and-groove process equipment, and carrying out in length and breadth, tongue-and-groove processing is finished product.
Embodiment 5:
1, the base material precompressed is handled:
Base material is the full Liu An multi-plywood material of seven layers of 11.6mm, with substrate with structure shown in Figure 5, promptly send into the order assembly of 0.4mm thickness wood 51, bond paper 52, base material 53, bond paper 54, the thick Liu An veneer 55 of 0.4mm and send in the hot press in the hot press with 185 degrees centigrade temperature, the pressure hot pressing of 25MPa, the time is 35 seconds.Press back sheet material 1220mm * 2440mm angularity 3%, thickness deviation is ± 0.4mm.
2, sanding is handled:
The sheet material cooling that precompressed was handled was sent in the sander after 15 minutes, carried out the fixed thick sanding of sheet material with the several 350 purpose abrasive bands of order, the sand amount of cutting is 0.20mm.One side is for decorative cover preferably to select board quality again, and to carry out plate surface sanding twice in the several 500 purpose abrasive bands of order, the sand amount of cutting is 0.08mm, makes the sheet metal thickness tolerance in ± 0.2mm.
3, overlay the facing protective layer:
The sheet material that sanding was handled is with structure shown in Figure 4, and promptly 45 gram abrasion-proof papers 41 cover on the base material 42 assembly and send in the hot press with 190 degrees centigrade temperature, the pressure hot pressing of 23MPa, 32 seconds time.
4, cut:
With overlaying the sheet material cooling and shaping 12 hours that facing handled, cut into hair plates.
5, tongue-and-groove processing:
Hair plates is sent into the tongue-and-groove process equipment, and carrying out in length and breadth, tongue-and-groove processing is finished product.
The inventive method is compared with traditional paint finishing method processing solid wooden compound floor, and effect improves nearly 10 times, and the surface layer processing cost is about 10 yuans/square metre, reduces cost nearly 30%.Economic benefit and social benefit are comparatively remarkable.
Adopt said method to produce the composite wood floor and have the efficient height, cost is low, and technology is controlled advantages such as grasp easily.The facing that more existing traditional base material and finishing material are produced more natural reality, environmental protection, water-tolerant, Clear ﹠ Transparent, wearability good, the surfacing shock resistance.
The front provides the description to preferred embodiment, so that any technical staff in this area can use or utilize the present invention.Various modifications to these embodiment are conspicuous to those skilled in the art, can be applied to other embodiment to total principle described here and not use creativeness.Thereby, the embodiment shown in the present invention will be not limited to here, and the wide region of principle that should disclose and new feature according to meeting here.
Claims (5)
1, a kind of method of producing solid wooden compound floor is characterized in that, described method adopts following steps:
(1) precompressed is no less than 20 seconds to base material, and described precompressed temperature is more than the 8MPa greater than 100 degrees centigrade, pressure;
(2) with after the described base material cooling, carry out the fixed thick sanding of base material with the order number greater than 100 purpose abrasive bands, the wherein one side of selecting base material is as decorative cover, with the order number greater than of the surperficial secondary sanding of 200 purpose abrasive bands to described decorative cover, make the base material thickness tolerance in ± 0.3mm, angularity is less than 2%;
(3) with behind described base material and finish coat, the balance layer assembly, with the temperature more than 150 degrees centigrade, pressure hot pressing more than the 5MPa, hot pressing time is no less than 25 seconds;
(4) will overlay facing treated base material cooling and shaping more than 8 hours, cut into hair plates;
(5) hair plates is sent into the tongue-and-groove process equipment, carrying out in length and breadth, tongue-and-groove processing is finished product.
2, method according to claim 1 is characterized in that, further comprises step between described step (2), (3):
The surface coating amino resins of the sheet material that the precompressed sanding is good, glue-spread 50～180 gram/rice
2, post finish coat after, with the temperature more than 100 degrees centigrade, pressure hot pressing more than the 5MPa, hot pressing time is no less than 30 seconds, places after 15 minutes, carries out plate surface sanding once more with the order number greater than 200 purpose abrasive bands, makes the sheet metal thickness tolerance in ± 0.3mm.
3, method according to claim 1 is characterized in that, further comprises step between described step (2), (3):
Behind sheet material that the precompressed sanding is good and finish coat, the balance layer assembly, with the temperature more than 150 degrees centigrade, pressure hot pressing more than the 5MPa, hot pressing time is no less than 25 seconds; Place after 15 minutes, carry out plate surface sanding once more greater than 200 purpose abrasive bands, make the sheet metal thickness tolerance in ± 0.3mm with the order number.
4, method according to claim 1 is characterized in that, in the described step (1), described base material comprises the base material that has posted finish coat.
5, method according to claim 1 is characterized in that, in the described step (1), described base material comprises the base material with the finish coat assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03129654 CN1565818A (en) | 2003-07-02 | 2003-07-02 | Method for producing hard wood composite floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03129654 CN1565818A (en) | 2003-07-02 | 2003-07-02 | Method for producing hard wood composite floor |
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| CN1565818A true CN1565818A (en) | 2005-01-19 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100336645C (en) * | 2006-04-10 | 2007-09-12 | 浙江久盛地板有限公司 | Method for processing solid wood floor |
| CN100337802C (en) * | 2005-05-23 | 2007-09-19 | 姚根法 | Method for fabricating damp proofing and heat-resistant floorboard in solid wood structure |
| CN102501658A (en) * | 2011-10-18 | 2012-06-20 | 临江市金豹木业有限公司 | Floor printing and embossing synchronous overprinting process |
| CN106696043A (en) * | 2017-01-06 | 2017-05-24 | 福建永林家居有限公司 | Production method and production device of non-formaldehyde laminated wood flooring |
| CN108890807A (en) * | 2018-06-13 | 2018-11-27 | 江山市丰泽木业有限公司 | A kind of processing technology of the environmentally protective decorative cover of ecosystem |
-
2003
- 2003-07-02 CN CN 03129654 patent/CN1565818A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337802C (en) * | 2005-05-23 | 2007-09-19 | 姚根法 | Method for fabricating damp proofing and heat-resistant floorboard in solid wood structure |
| CN100336645C (en) * | 2006-04-10 | 2007-09-12 | 浙江久盛地板有限公司 | Method for processing solid wood floor |
| CN102501658A (en) * | 2011-10-18 | 2012-06-20 | 临江市金豹木业有限公司 | Floor printing and embossing synchronous overprinting process |
| CN102501658B (en) * | 2011-10-18 | 2014-12-10 | 临江市金豹木业有限公司 | Floor printing and embossing synchronous overprinting process |
| CN106696043A (en) * | 2017-01-06 | 2017-05-24 | 福建永林家居有限公司 | Production method and production device of non-formaldehyde laminated wood flooring |
| CN108890807A (en) * | 2018-06-13 | 2018-11-27 | 江山市丰泽木业有限公司 | A kind of processing technology of the environmentally protective decorative cover of ecosystem |
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