CN103406950B - Anti-exposure eucalyptus laminated wood veneer and production method thereof - Google Patents
Anti-exposure eucalyptus laminated wood veneer and production method thereof Download PDFInfo
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- CN103406950B CN103406950B CN201310353276.3A CN201310353276A CN103406950B CN 103406950 B CN103406950 B CN 103406950B CN 201310353276 A CN201310353276 A CN 201310353276A CN 103406950 B CN103406950 B CN 103406950B
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Abstract
The invention provides a production method of an anti-exposure eucalyptus laminated wood veneer. The artificial board is composed of a base material, softwood and melamine impregnated paper or aluminum oxide abrasion-resistant paper, wherein the base material is formed by bonding 3-15 layers of eucalyptus veneers through adhesives, the softwood is bonded on two sides of the base material, and the melamine impregnated paper or the aluminum oxide abrasion-resistant paper is pasted onto the surface of the softwood. The production method comprises the steps of veneer sorting, gluing, cold pressing, hot pressing, stacking maintenance, pasting of the softwood and pasting of the melamine impregnated paper or the aluminum oxide abrasion-resistant paper. The production method is characterized in that the base material is produced through three times of cold pressing and hot pressing, two times of thermostatic chamber standing maintenance and cooling maintenance processes; and the softwood is pasted onto the two sides of the base material. The anti-exposure eucalyptus laminated wood veneer is used for manufacturing furniture or wood floors and has the advantage that the wood veneer does not bulge and deform after exposed for a long time.
Description
Technical field
The present invention relates to a kind of wood-based plate and production method thereof, particularly a kind of insolation proof Eucalyptus lamination decoration panel and production method thereof.
Background technology
Eucalyptus is the general designation that Myrtaceae Myrtaceae eucalyptus belongs to Eucalyptus plant, and eucalyptus strong adaptability also can grow in dead soil, and fast growth, nursing cost is low, and therefore cultivated area increases year by year.Eucalyptus Wood is red, glossy, without special odor, texture is staggered, structure is close, material is firmly heavy, flexible.Level larger eucalyptus in footpath is by being peeled into veneer, glued board or laminated veneer lumber is produced as central layer, and small diameter grade, brush wood or the eucalyptus that is difficult to rotary-cut are processed into wood chip, for papermaking or producd fibers plate, therefore the comprehensive utilization ratio of eucalyptus can be increased to more than 90%.China successfully developed high-performance Eucalyptus recombinant material, Eucalyptus laminated veneer lumber, bamboo eucalyptus composite, thick core eucalyptus composite plate made from solid wood and without aldehyde Eucalyptus plywood making technology etc. in recent years, and Eucalyptus is more and more universal in the application of wood-based plate.
Eucalyptus structure is close, material hard, and the Eucalyptus laminated veneer lumber made is due to effect of stress, and the effect of expanding with heat and contract with cold, easy layering, a drum are out of shape.When particularly direct sunlight is on Eucalyptus laminated veneer lumber, upper strata temperature is higher than lower floor temperature, and the temperature of laminated timber every layer is all inconsistent, and the degree varies sample expanded with heat and contract with cold, is very easy to distortion of coming unstuck.The way addressed this problem mainly contains at present and improves unit are resin added, to increase the bonding strength of glued board, but resin added increases, and burst size of methanal also can increase, the grievous injury health of consumer.
Summary of the invention
The object of this invention is to provide a kind of insolation proof Eucalyptus lamination decoration panel, can be exposed to the sun for a long time and not delamination is out of shape and is had deadening, the present invention discloses the production method of this insolation proof Eucalyptus lamination decoration panel equally, by disclosed production method, when not increasing unit are resin added, improve the bonding strength of glued board.
Technical scheme of the present invention is as follows:
Insolation proof Eucalyptus lamination decoration panel, by 3 ~ 15 layers of Eucalyptus veneer by being coated with the base material and base material both-sided adhesive cork and cork surface laminating melamine impregnated paper or alundum (Al2O3) abrasion-proof paper that lamination is compressed after adhesive.
In the production process of base material, adopt cold pressing for three times, three hot pressing, twice thermostatic chamber leave standstill health and overcome bulging phenomenon with the method for heat radiation health.Concrete production technology is as follows:
Manually select Eucalyptus veneer of the same size, coat adhesive, resin added is generally 200 ~ 300g/m
2, assembly (3 ~ 15 layers), first time colds pressing, and temperature is normal temperature, and pressure is 1.5 ~ 2MPa, first time hot pressing, and temperature is 115 ~ 120 DEG C, and pressure is 2 ~ 3MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Second time is colded pressing, and temperature is normal temperature, and pressure is 1.5 ~ 2MPa, second time hot pressing, and temperature is 110 ~ 115 DEG C, and pressure is 2 ~ 3MPa; Second time thermostatic chamber leaves standstill health, and thermostatic chamber temperature is 60 ~ 80 DEG C, time 90 ~ 120min, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Third time colds pressing, and temperature is normal temperature, and pressure is 1.5 ~ 2MPa, third time hot pressing, temperature is 120 ~ 125 DEG C, and pressure is 2 ~ 3MPa, determine thick with coarse sand and fine sandpaper polishing, stick cork, the temperature of laminating is 100 ~ 110 DEG C, pressure is 0.8 ~ 1.0Mpa, polishing cork, sticks melamine impregnated paper or alundum (Al2O3) abrasion-proof paper above cork, hot pressing, temperature is 120 ~ 160 DEG C, and pressure is 1.5 ~ 2.0Mpa, heat radiation arranges, and beats limit, obtains insolation proof Eucalyptus lamination decoration panel.
Described adhesive is common urea-formaldehyde resin adhesive, and market is bought, without the need to using special adhesive specially.
Good effect of the present invention is:
1. insolation proof Eucalyptus lamination decoration panel of the present invention is fitted cork on Eucalyptus base material, have good heat insulation, deadening, even if the decoration panel made is exposed to the sun for a long time, the temperature difference of cork internal layer base material is not very large, expand with heat and contract with cold not obvious, therefore avoid decoration panel and be exposed to the sun and play drum distortion.
2. insolation proof Eucalyptus lamination decoration panel of the present invention adopt in process of production cold pressing for three times, three hot pressing, twice thermostatic chamber leave standstill health and twice heat radiation craft; can Form aldehyde release residual in common urea-formaldehyde resin adhesive out (production process strengthens blowing amount or adopts negative pressure exhausting) in production process; therefore the residual formaldehyde of finished product is low; burst size of methanal reduces naturally, greatly protects the health of consumer.
3. colding pressing repeatedly, hot pressing, thermostatic chamber leave standstill the resilience that health and heat radiation health can overcome Eucalyptus base material to insolation proof Eucalyptus lamination decoration panel of the present invention in process of production, finished size stability is high, reduce the possibility that finished product in use plays drum, distortion, cork layer can according to market situation, laminating melamine impregnated paper or alundum (Al2O3) abrasion-proof paper, produce top-grade furniture wood-based plate or high-grade timber floor, flexibility is large.
Detailed description of the invention
Embodiment 1
Manually select Eucalyptus veneer of the same size, coat urea-formaldehyde resin adhesive, resin added is 300g/ ㎡, assembly 5 layers, and first time colds pressing, and temperature is normal temperature, and pressure is 1.5MPa, first time hot pressing, and temperature is 115 ~ 120 DEG C, and pressure is 2MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours; The naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Second time is colded pressing, and temperature is normal temperature, and pressure is 1.5MPa, second time hot pressing, and temperature is 110 ~ 115 DEG C, and pressure is 2MPa; Second time thermostatic chamber leaves standstill health, and thermostatic chamber temperature is 60 ~ 80 DEG C, time 90 ~ 120min, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Third time colds pressing, and temperature is normal temperature, and pressure is 1.5MPa, third time hot pressing, temperature is 120 ~ 125 DEG C, and pressure is 2MPa, determines thick with coarse sand and fine sandpaper polishing, paste cork, the temperature of laminating is 100 ~ 120 DEG C, and pressure is 0.8 ~ 1.0Mpa, polishing cork surface, melamine paper is pasted in face with cork, hot pressing, temperature is 120 ~ 160 DEG C, and pressure is 1.0MPa, and heat radiation arranges, beat limit, obtain insolation proof Eucalyptus lamination decoration panel, can be used for the manufacture of furniture.
Embodiment 2
Manually select Eucalyptus veneer of the same size, coat the urea-formaldehyde resin adhesive that market is bought, resin added is 250g/ ㎡, assembly 9 layers, and first time colds pressing, and temperature is normal temperature, and pressure is 1.8MPa, first time hot pressing, and temperature is 115 ~ 120 DEG C, and pressure is 2.5MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours; The naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Second time is colded pressing, and temperature is normal temperature, and pressure is 1.8MPa, second time hot pressing, and temperature is 110 ~ 115 DEG C, and pressure is 2.5MPa; Second time thermostatic chamber leaves standstill health, and thermostatic chamber temperature is 60 ~ 80 DEG C, time 90 ~ 120min, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Third time colds pressing, and temperature is normal temperature, and pressure is 1.8MPa, third time hot pressing, temperature is 120 ~ 125 DEG C, and pressure is 2.5MPa, determines thick with coarse sand and fine sandpaper polishing, paste cork, the temperature of laminating is 100 ~ 120 DEG C, and pressure is 0.8 ~ 1.0Mpa, polishing cork surface, cork face is pasted alundum (Al2O3) abrasion-proof paper, hot pressing, temperature is 120 ~ 160 DEG C, and pressure is 1.5MPa, and heat radiation arranges, beat limit, obtain insolation proof Eucalyptus lamination decoration panel, for the production of timber floor.
Embodiment 3
Manually select Eucalyptus veneer of the same size, coat the urea-formaldehyde resin adhesive that market is bought, resin added is 200g/ ㎡, assembly 15 layers, and first time colds pressing, and temperature is normal temperature, and pressure is 2.0MPa, first time hot pressing, and temperature is 115 ~ 120 DEG C, and pressure is 3MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours; The naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Second time is colded pressing, and temperature is normal temperature, and pressure is 2.0MPa, second time hot pressing, and temperature is 110 ~ 115 DEG C, and pressure is 3MPa; Second time thermostatic chamber leaves standstill health, and thermostatic chamber temperature is 60 ~ 80 DEG C, time 90 ~ 120min, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Third time colds pressing, and temperature is normal temperature, and pressure is 2.0MPa, third time hot pressing, temperature is 120 ~ 125 DEG C, and pressure is 3MPa, determines thick with coarse sand and fine sandpaper polishing, paste cork, the temperature of laminating is 100 ~ 120 DEG C, and pressure is 0.8 ~ 1.0Mpa, polishing cork surface, melamine paper is pasted in face with cork, hot pressing, temperature is 120 ~ 160 DEG C, and pressure is 1.5MPa, and heat radiation arranges, beat limit, obtain insolation proof Eucalyptus lamination decoration panel, can be used for the manufacture of furniture.
comparative example 1
Manually select Eucalyptus veneer of the same size, coat the urea-formaldehyde resin adhesive that market is bought, resin added is 300g/ ㎡, and assembly (11 layers), colds pressing, and temperature is normal temperature, and pressure is 2MPa, hot pressing, and temperature is 120 ~ 125 DEG C, and pressure is 3MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Determine thick with coarse sand and fine sandpaper polishing, paste cork, the temperature of laminating is 100 ~ 120 DEG C, pressure is 0.8 ~ 1.0Mpa, polishing cork surface, melamine paper is pasted in face with cork, hot pressing, temperature is 120 ~ 160 DEG C, pressure is 1.5MPa, and heat radiation arranges, and beats limit, obtain insolation proof Eucalyptus lamination decoration panel, can be used for the manufacture of common wealth furniture.
comparative example 2
Manually select Eucalyptus veneer of the same size, coat the urea-formaldehyde resin adhesive that market is bought, resin added is 300g/ ㎡, assembly (7 layers), first time colds pressing, and temperature is normal temperature, and pressure is 2.0MPa, first time hot pressing, temperature is 115 ~ 120 DEG C, and pressure is 3.0MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Second time is colded pressing, and temperature is normal temperature, and pressure is 2.0MPa, second time hot pressing, and temperature is 110 ~ 115 DEG C, and pressure is 3.0MPa; Second time thermostatic chamber leaves standstill health, and thermostatic chamber temperature is 60 ~ 80 DEG C, time 90 ~ 120min, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Determine thick with coarse sand and fine sandpaper polishing, paste cork, the temperature of laminating is 100 ~ 120 DEG C, pressure is 0.8 ~ 1.0Mpa, polishing cork surface, melamine paper is pasted in face with cork, hot pressing, temperature is 120 ~ 160 DEG C, pressure is 1.5MPa, and heat radiation arranges, and beats limit, obtain insolation proof Eucalyptus lamination decoration panel, can be used for the manufacture of common wealth furniture.
comparative example 3
Manually select Eucalyptus veneer of the same size, coat urea-formaldehyde glue and stick agent, resin added is 200g/ ㎡, assembly 13 layers, and first time colds pressing, and temperature is normal temperature, and pressure is 2.0MPa, first time hot pressing, and temperature is 115 ~ 120 DEG C, and pressure is 3MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours; The naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Second time is colded pressing, and temperature is normal temperature, and pressure is 2.0MPa, second time hot pressing, and temperature is 110 ~ 115 DEG C, and pressure is 3MPa; Second time thermostatic chamber leaves standstill health, and thermostatic chamber temperature is 60 ~ 80 DEG C, time 90 ~ 120min, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Third time colds pressing, and temperature is normal temperature, and pressure is 2.0MPa, third time hot pressing, temperature is 120 ~ 125 DEG C, and pressure is 3MPa, determine thick with coarse sand and fine sandpaper polishing, paste melamine paper, hot pressing, temperature is 120 ~ 160 DEG C, pressure is 1.5MPa, and heat radiation arranges, and beats limit, obtain Eucalyptus lamination decoration panel, can be used for the manufacture of furniture.
According to GB18580-2001 " in indoor decorating and refurnishing materials wood-based plate and goods thereof burst size of methanal limitation ", the burst size of methanal of products obtained therefrom in embodiment is measured; According to GB/T9846---the bonding strength of method to embodiment products obtained therefrom detected in 2004 " glued boards " measures; The mensuration playing drum phenomenon of wood-based plate adopts water-boiling method, namely wood-based plate is cut out as 80cm(length) × 30cm(is wide) specification, the thermostatted water putting into 80 DEG C soaks, record wood-based plate plays the drum time used, and the time is longer, illustrates that the quality of wood-based plate is better, under normal condition uses, more difficult drum.Wood-based plate is cut out as 80cm(grows) × 30cm(is wide) specification, 500W tengsten lamp is placed at height 30cm place, sheet material center, sheet material is shone 2 hours with 500W tengsten lamp, measure sheet material with slide measure to throw light on forward and backward length L1 and L2, the deflection of sheet material after being manually exposed to the sun is (L2-L1)/L1 × 100%.Each Product checking three times, data are averaged, and every testing result is as shown in the table:
It can be seen from the table, by cork of fitting on Eucalyptus base material, can improve the dimensional stability of wood-based plate, even if be exposed to the sun for a long time, the deflection of wood-based plate is within 1%, and therefore Eucalyptus lamination decoration panel of the present invention has excellent insolation proof function.Find out from the data of upper table and production technology, cold pressing for three times by adopting, three hot pressing, twice thermostatic chamber leave standstill health and twice heat radiation craft, the bonding strength of wood-based plate can be improved, and then improve the dimensional stability of wood-based plate, and the burst size of methanal of finished product can be reduced.
Claims (1)
1. an insolation proof Eucalyptus lamination decoration panel, it is characterized in that, the base material that it is compressed by lamination after urea-formaldehyde resin adhesive that market is bought by 3 ~ 15 layers of Eucalyptus veneer and base material both-sided adhesive cork and cork surface laminating melamine impregnated paper or alundum (Al2O3) abrasion-proof paper form;
The production method that described insolation proof Eucalyptus lamination decoration panel adopts, comprise veneer sorting, gluing, cold pressing, hot pressing, stacking health, paste cork and paste melamine gum dipped paper step, it is characterized in that: the manufacture of base material adopts colds pressing for three times and three hot pressing, twice thermostatic chamber leaves standstill health and twice heat radiation health; Described temperature of colding pressing is room temperature, and pressure is 1.0 ~ 1.5MPa, and hot pressing pressure is 2 ~ 3MPa; The temperature of first time hot pressing is 115 ~ 120 DEG C; The temperature of second time hot pressing is 110 ~ 115 DEG C, and the temperature of third time hot pressing is 120 ~ 125 DEG C; It is 60 ~ 80 DEG C that described thermostatic chamber leaves standstill health temperature, and the time is 5 ~ 8h; Described heat radiation health is that thermostatic chamber gravity-flow ventilation is cooled to room temperature, and the time is 3 ~ 4h; Substrate surface pasting cork is at 100 ~ 120 DEG C, and pressure is carry out under 0.8 ~ 1.0Mpa; Melamine impregnated paper is pasted on cork surface or alundum (Al2O3) abrasion-proof paper is at 120 ~ 160 DEG C, and pressure is carry out under 1.5 ~ 2.0Mpa.
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| CN104097240A (en) * | 2014-06-27 | 2014-10-15 | 佛山市高明万明水松产业有限公司 | Timber decoration material and preparing method thereof |
| CN104354195B (en) * | 2014-11-12 | 2016-09-07 | 广西鹿寨北林胶合板有限公司 | Use the method that lignin adhesive produces timber floor |
| CN104441104B (en) * | 2014-11-12 | 2016-09-07 | 广西南宁绿园北林木业有限公司 | Use the method that lignin adhesive produces cabinet plate |
| CN105014766B (en) * | 2015-07-12 | 2018-01-16 | 北华大学 | A kind of floor dash board and its manufacture method |
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| CN202810119U (en) * | 2012-09-19 | 2013-03-20 | 杭州佰孚行建材有限公司 | Special environment-friendly solid wood composite floor board for ground heating |
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Address after: 530300 the Guangxi Zhuang Autonomous Region Nanning Hengxian City Heng Zhou Zhen Cha Jiang Road No. 121 Patentee after: Guangxi Luzhai Beilin Plywood Co., Ltd. Address before: 545600 west the Guangxi Zhuang Autonomous Region Luzhai County of Liuzhou City, built in 61 Patentee before: Guangxi Luzhai Beilin Plywood Co., Ltd. |
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Effective date of registration: 20201009 Address after: 530300 the Guangxi Zhuang Autonomous Region Nanning Hengxian City Heng Zhou Zhen Cha Jiang Road No. 121 Patentee after: Mo Mingxin Address before: 530300 the Guangxi Zhuang Autonomous Region Nanning Hengxian City Heng Zhou Zhen Cha Jiang Road No. 121 Patentee before: GUANGXI LUZHAI BEILIN PLYWOOD Co.,Ltd. |
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