CN101830025B - Production method of bamboo plywood coated with film - Google Patents
Production method of bamboo plywood coated with film Download PDFInfo
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- CN101830025B CN101830025B CN2010101791810A CN201010179181A CN101830025B CN 101830025 B CN101830025 B CN 101830025B CN 2010101791810 A CN2010101791810 A CN 2010101791810A CN 201010179181 A CN201010179181 A CN 201010179181A CN 101830025 B CN101830025 B CN 101830025B
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Abstract
The invention discloses a production method of bamboo plywood coated with a film. The production method comprises the processes of: sheet cutting, curtain or mat knitting, drying and sizing, glue dipping, glue airing, re-drying, blank assembling, hot pressing and blank edge processing and is characterized by comprising the specific steps: drying a bamboo curtain or a bamboo mat knitted by bamboo with small diameter at 100-200 DEG C firstly till water content is 10-14% and sizing; dipping in glue and then drying at 100-120 DEG C till the water content is 6-14%; adding veneers, covering film paper, dipping in glue separately and airing; assembling blanks of mat and short and long curtains alternately; hot pressing and processing edges of the blanks. The invention has wide raw material sources and less raw material waste, shortens drying time, improves working efficiency, achieves more firm gluing among plies, has no foaming and flaking phenomenon, and overcomes the defects of surface hole shrinking and incomplete gluing due to colloids seepage, which are generated when drying is carried out below 95 DEG C in the traditional method. All indexes of the product provided by the invention meet or exceed national standards.
Description
Technical field
The present invention relates to a kind of laminar product processing method, especially a kind of production method of bamboo plywood coated with film.
Background technology
The bamboo offset plate is to do main framework and casting resin with the bamboo wood material to be pressed into the sheet material of base through height, because bamboo offset plate hardness is high, anti-folding, compression strength are big, acid and alkali-resistance and be widely used in building shut die, railway carriage casing, big machinery packing, a plurality of fields such as mine door.Production method of bamboo plywood is more at present; Like Chinese patent 200610121114.7 disclosed a kind of bamboo offset plate and manufacturing approaches thereof; Its step is to select the second layer and the 3rd layer of thin bamboo strips used for weaving of mao bamboon more than 4 years and weave into bamboo curtain splint; Behind gluing on the bamboo curtain splint, be dried to water content 13%, cold pressing earlier behind the assembly to 180MPa release then, arrangement forms through the limit to be warming up to 150 ℃, 180MPa insulation 45 minutes again.The production method of Chinese patent 93118042.2 disclosed fly wood made from bamboo mat and hard sundry wood and for example, it is processed into bamboo mat with bamboo earlier, hardwood is processed into the plank piece, and then on bamboo mat, is coated with phenolic resin glue, and after the drying, it is hot-forming to stick bamboo mat on the plank two sides.Above-mentioned patent all is to use the bigger bamboo grove in circle footpath, and its raw material sources are few, and waste more raw material, and above-mentioned two patent processing technologys are unreasonable simultaneously, and the bamboo offset plate production cycle is long, and production efficiency is low, and adhesive fastness is difficult to reach optimum state between flaggy.
Summary of the invention
The objective of the invention is to overcome the prior art deficiency provides a kind of, provides a kind of raw material sources wide, and processing technology is the dwarf bamboo production method of bamboo plywood coated with film more reasonably, and the object of the invention is realized through following technical proposals: the present invention follows these steps to carry out:
1, earlier dwarf bamboo is blocked into Len req, cut open sheet and be woven into bamboo mat or bamboo curtain splint;
2, the preparation solids content is the 20-25% phenolic resin glue;
3, drying and shaping, impregnation, oven dry are again dried by the fire bamboo mat, bamboo curtain splint to water content 8-14% under 100-120 ℃ of condition, carry out bamboo mat, bamboo curtain splint, wooden skin and tectorial paper impregnation respectively, and the impregnation time is 10-25 minute;
4, the glue that dries in the air, after drying in the air behind the impregnation glue 70-120% minute, go again 100-120 ℃ dry to water content 6-14%;
5, assembly is pressed tectorial paper, veneer, and seat, the alternate assembly of length bamboo curtain splint is inserted bamboo mat, wooden skin and tectorial paper at last again;
6, hot pressing, hot pressing and keeping 18-50 minute under 135-140 ℃, 3.0～3.2Mps condition, the limit arrangement is carried out in step-down when being cooled to below 60 ℃ after the taking-up.
Said tectorial paper impregnation is that 80-120 gram paper is dipped in the glue of basic stain processing; The coloring agent kind selects to mainly contain sulphur black, thiocyanogen, rose-red, bright red, adding phenolic resin glue as required; Addition is 0.1%, and impregnation resin content is that 0.52-0.60Kg/ opens.
Compared with prior art, the present invention has following advantage: raw material sources are extensive, and waste of raw materials is few; Do not need precompressed, reduced stoving time, improved operating efficiency; Gummed is more firm between flaggy, the aliquation phenomenon of bubbling can not occur, and oven dry can make bamboo wood surface holes swollen the splitting of distortion fast because higher temperature is to raw material; Wax such as surf green, tabasheer colloidality thing is difficult for forming wax appearance film on the surface, makes between flaggy gummed more abundant.Overcome that oven dry occurs below 95 ℃ in the past surface holes is dwindled and colloid oozes out and is difficult for the defective of gummed fully.The product that the present invention produces through detect each item index all above or be up to state standards, product surface face of the present invention is smooth, no impression, no bubbling, density>=0.85G/cm
3, moisture content≤12%, water absorption rate≤12%, MOR>=90N/mm
2, quiet bent elasticity>=7 * 103N/mm
2, poach, freezing, kept dry degree>=60N/mm
2
The specific embodiment
Embodiment 1:
One, get the raw materials ready by following requirement:
1, select not have go mouldy, rotten, the dwarf bamboo raw material of damaging by worms as required length block and cut open sheet; Be woven into bamboo curtain splint or seat is subsequent use; Said dwarf bamboo is fishscale bamboo, non-irrigated bamboo and wood bamboo, henon bamboo, Lei Zhu, Fang Zhu etc. any or several bamboo curtain splint; Should not have the gap basically during the bamboo mat braiding, four limits are neat, and short thin bamboo strips used for weaving can not be connected into long thin bamboo strip;
2, wooden skin thickness is 1.2mm, area 1.27～1.3 * 0.83～0.90m, and every square metre of wooden comb in surface must not surpass 2 places, its maximum impaired area≤500mm
2, the surface must not attach the adhesive tape of being stained with, and rope or other attach sticking thing;
3, tectorial paper is selected the pure wood pulp paper of 80 grams for use, and its length sides edge and surface must not have fracture damaged;
4, water-soluble phenolic resin adhesive, solid contents 20-25%;
5, basic-dyeable fibre, basic-dyeable fibre be sulphur black, thiocyanogen, rose-red, bright red any.
Two, drying and shaping, impregnation is dried again
Earlier raw material bamboo curtain splint, bamboo mat are dried by the fire to water content 8-14% at 100-120 ℃; Capable again impregnation, said glue is the water soluble phenol resin of 20-25% solids, present embodiment is selected 20% phenolic resin glue for use; 10-25 minute impregnation time, the impregnation resin content bamboo mat is 0.176-0.19Kg/m
2, bamboo curtain splint is 0.12-0.135Kg/m
2, wooden skin is controlled at 0.53-0.65Kg/m
2, tectorial paper is controlled at 0.52-0.6Kg/m
2, present embodiment impregnation resin content 2800mm * 1320mm seat is controlled at 0.68Kg/ and opens, and 2800mm * 1320mm bamboo curtain splint is controlled at 0.44Kg/ and opens; The wood skin is 0.62Kg, and tectorial paper adds basic-dyeable fibre as required with phenolic resin glue color matching in advance; Said basic-dyeable fibre mainly contains thiocyanogen, sulphur black, rose-red or bright red any or two kinds, and present embodiment is selected sulphur black for use, adds 1 gram in every 1000ml glue; Be mixed, the tectorial paper glue consumption is controlled at 0.58Kg/ and opens.The impregnation time is 10-25 minute, and present embodiment was selected for use 10 minutes, the glue that dries in the air behind the impregnation, and the glue time bamboo curtain splint that dries in the air is 70-90 minute; Present embodiment was selected for use 80 minutes, and mat and wooden skin, tectorial paper are 100-120 minute, and present embodiment was selected for use 110 minutes, and the bamboo mat behind the glue that will dry in the air again, bamboo curtain splint, wooden skin place on the 100-120 ℃ of net formula dryer and dry by the fire to desired moisture content; Wherein bamboo mat is moisture is to be 8-14%, and it is 8% that present embodiment is selected water content for use, curtain water content 8-10%; Present embodiment selects 8% for use, wooden skin water content 8-12%, and present embodiment selects 8% for use; Tectorial paper moisture content 12-15% in summer, winter 6-12%, present embodiment selects 12% for use.
Three, assembly
Earlier that the corrosion resistant plate dirt removal is clean, spread 110-120 ℃ of high-temperature baking of one deck silicone oil simultaneously 2 hours, press impregnation tectorial paper, veneer, bamboo mat, short bamboo curtain splint, long bamboo curtain splint, short bamboo curtain splint, long bamboo curtain splint, bamboo mat, wooden single-skin drum, tectorial paper order assembly again; Should notice during assembly that wooden single-skin drum can not have the slit; Can not fold core, bamboo curtain splint can not be folded core, should select earlier to indulge during assembly, horizontal each datum level; And every datum level should be identical, curtain or seat polishing that the disrepair phenomenon application specification equates occur.
Four, hot pressing
1, behind the blanket feed plate machine, every blanket datum level must align, temperature when advancing base＜60 ℃.
Can open steam when 2, boosting and heat up, steam pressure can not be too big, requires 135-140 ℃ as long as can reach hot pressing temperature, in order to protection equipment.Present embodiment is selected 135 ℃ for use, pressure 3.0MPa, and the hot pressing retention time decides according to thickness of slab; Be generally 9-10mm plate 18 minutes, 12mm composite plate 20-25 minute 18-50 minute; 15mm composite plate 30-35 minute, 15mm mine air door plate 45-50 minute, present embodiment were selected for use 30 minutes.
3, cooling: could step-down when temperature drops to below 60 ℃, generally must drop to (bamboo offset plate internal temperature) below 55 ℃, when being zero, pressure just can open taking-up.
Five, edges of boards arrangement: can lacquer varnish, but also washed ore after the Puttying.
Embodiment 2:
One, get the raw materials ready by following requirement:
1, select not have go mouldy, rotten, the dwarf bamboo raw material of damaging by worms as required length block and cut open sheet; Be woven into bamboo curtain splint or seat is subsequent use; Said dwarf bamboo is fishscale bamboo, non-irrigated bamboo and wood bamboo, henon bamboo, Lei Zhu, Fang Zhu etc. any or several bamboo curtain splint; Should not have the gap basically during the bamboo mat braiding, four limits are neat, and short thin bamboo strips used for weaving can not be connected into long thin bamboo strip;
2, wooden skin thickness is 1.3mm, area 1.27～1.3 * 0.83～0.90m, and every square metre of wooden comb in surface must not surpass 2 places, its maximum impaired area≤500mm
2, the surface must not attach the adhesive tape of being stained with, and rope or other attach sticking thing;
3, tectorial paper is selected the pure wood pulp paper of 100 grams for use, and its length sides edge and surface must not have fracture damaged;
4, water-soluble phenolic resin adhesive, solid contents 25%;
5, basic-dyeable fibre, basic-dyeable fibre be sulphur black, thiocyanogen, rose-red, bright red any.
Two, drying and shaping, impregnation is dried again
Earlier raw material bamboo curtain splint, bamboo mat are dried by the fire to water content 11% at 110 ℃, capable again impregnation, said glue is the water soluble phenol resin of 25% solids; 20 minutes impregnation time, impregnation resin content 2800mm * 1320mm seat is controlled at 0.68Kg/ and opens, and 2800mm * 1320mm bamboo curtain splint is controlled at 0.50Kg/ and opens; Wooden skin with area is that 0.62Kg/ opens, and tectorial paper adds basic-dyeable fibre as required with phenolic resin glue color matching in advance; Said basic-dyeable fibre mainly contains thiocyanogen, sulphur black, rose-red or bright red any or two kinds, and present embodiment is selected for use and rose-redly added bright redly, adds 1 gram (two kinds of total amounts) in every 1000ml glue; Be mixed, the tectorial paper glue consumption is controlled at 0.58Kg/ and opens.The glue that dries in the air behind the impregnation, the glue time bamboo curtain splint that dries in the air is 90 minutes, mat and wooden skin tectorial paper are 100 minutes; Bamboo mat, bamboo curtain splint, the wooden skin behind the glue of will drying in the air again places on 110 ℃ of net formula dryers and dries by the fire to water content about 10%, and wherein the bamboo mat water content is 10%, curtain water content 9%; Wood skin water content 10%; Tectorial paper moisture content 12-15% in summer, winter 6-12%, present embodiment selects 6% for use.
Three, assembly
Earlier that the corrosion resistant plate dirt removal is clean, spread 110-120 ℃ of high-temperature baking of one deck silicone oil simultaneously 2 hours, press impregnation tectorial paper, veneer, bamboo mat, short bamboo curtain splint, long bamboo curtain splint, short bamboo curtain splint, long bamboo curtain splint, bamboo mat, wooden single-skin drum, tectorial paper order assembly again; Should notice during assembly that wooden single-skin drum can not have the slit; Can not fold core, bamboo curtain splint can not be folded core, should select earlier to indulge during assembly, horizontal each datum level; And every datum level should be identical, curtain or seat polishing that the disrepair phenomenon application specification equates occur.
Four, hot pressing
1, behind the blanket feed plate machine, every blanket datum level must align, temperature when advancing base＜60 ℃.
Can open steam when 2, boosting and heat up, steam pressure can not be too big, requires as long as can reach hot pressing temperature, in order to protection equipment.Present embodiment is selected 138 ℃ for use, pressure 3.1MPa, and the hot pressing retention time was generally 18-50 minute according to thickness of slab; 9-10mm plate 18 minutes, 12mm composite plate 20-25 minute, 15mm composite plate 30-35 minute; 15mm mine air door plate 45-50 minute, present embodiment were selected for use 50 minutes.
3, cooling: could step-down when temperature drops to below 60 ℃, in the time of generally must dropping to (bamboo offset plate internal temperature) below 55 ℃ and zero pressure, just can open taking-up.
Five, edges of boards arrangement: can lacquer varnish, but also washed ore after the Puttying.
Embodiment 3:
One, get the raw materials ready by following requirement:
1, select not have go mouldy, rotten, the dwarf bamboo raw material of damaging by worms as required length block and cut open sheet; Be woven into bamboo curtain splint or seat is subsequent use; Said dwarf bamboo is fishscale bamboo, non-irrigated bamboo and wood bamboo, henon bamboo, Lei Zhu, Fang Zhu etc. any or several bamboo curtain splint; Should not have the gap basically during the bamboo mat braiding, four limits are neat, and short thin bamboo strips used for weaving can not be connected into long thin bamboo strip;
2, wooden skin thickness is 1.4mm, area 1.27～1.3 * 0.83～0.90m, and every square metre of wooden comb in surface must not surpass 2 places, its maximum impaired area≤500mm
2, the surface must not attach the adhesive tape of being stained with, and rope or other attach sticking thing;
3, tectorial paper is selected the pure wood pulp paper of 120 grams for use, and its length sides edge and surface must not have fracture damaged;
4, water-soluble phenolic resin adhesive, solid contents 23%;
5, basic-dyeable fibre, basic-dyeable fibre be sulphur black, thiocyanogen, rose-red, bright red any.
Two, drying and shaping, impregnation is dried again
Earlier raw material bamboo curtain splint, bamboo mat are dried by the fire to water content 14% at 120 ℃, capable again impregnation, said glue is the water soluble phenol resin of 23% solids; 25 minutes impregnation time, impregnation resin content 2800mm * 1320mm seat is controlled at 0.70Kg/ and opens, and 2800mm * 1320mm bamboo curtain splint is controlled at 0.48Kg/ and opens; The wood skin is that 0.65Kg/ opens, and tectorial paper adds basic-dyeable fibre as required with phenolic resin glue color matching in advance; Said basic-dyeable fibre mainly contains thiocyanogen, sulphur black, rose-red or bright red any or two kinds, and present embodiment is selected for use and rose-redly added bright redly, adds 1 gram (two kinds of total amounts) in every 1000ml glue; Be mixed, the tectorial paper glue consumption is controlled at 0.60Kg/ and opens.The glue that dries in the air behind the impregnation, the glue time bamboo curtain splint that dries in the air is 70 minutes, mat and wooden skin tectorial paper are 120 minutes; Bamboo mat, bamboo curtain splint, the wooden skin behind the glue of will drying in the air again places on 120 ℃ of net formula dryers and dries by the fire to water content about 14%, and wherein the bamboo mat water content is 14%, curtain water content 10%; Wood skin water content 14%; Tectorial paper moisture content 12-15% in summer, winter 6-12%, present embodiment selects 15% for use.
Three, assembly
Earlier that the corrosion resistant plate dirt removal is clean, spread 110-120 ℃ of high-temperature baking of one deck silicone oil simultaneously 2 hours, press impregnation tectorial paper, veneer, bamboo mat, short bamboo curtain splint, long bamboo curtain splint, short bamboo curtain splint, long bamboo curtain splint, bamboo mat, wooden single-skin drum, tectorial paper order assembly again; Should notice during assembly that wooden single-skin drum can not have the slit; Can not fold core, bamboo curtain splint can not be folded core, should select earlier to indulge during assembly, horizontal each datum level; And every datum level should be identical, curtain or seat polishing that the disrepair phenomenon application specification equates occur.
Four, hot pressing
1, behind the blanket feed plate machine, every blanket datum level must align, temperature when advancing base＜60 ℃.
Can open steam when 2, boosting and heat up, steam pressure can not be too big, requires as long as can reach hot pressing temperature, in order to protection equipment.Present embodiment is selected 140 ℃ for use, pressure 3.2MPa, and the hot pressing retention time was generally 18-50 minute according to thickness of slab; 9-10mm plate 18 minutes, 12mm composite plate 20-25 minute, 15mm composite plate 30-35 minute; 15mm mine air door plate 45-50 minute, present embodiment were selected for use 18 minutes.
3, cooling: could step-down when temperature drops to below 60 ℃, generally must drop to (bamboo offset plate internal temperature) below 55 ℃, when being zero, pressure just can open taking-up.
Five, edges of boards arrangement: can lacquer varnish, but also washed ore after the Puttying.
Claims (2)
1. production method of bamboo plywood coated with film is characterized in that following these steps to carrying out:
(1) earlier dwarf bamboo is blocked and cut open sheet and weave into bamboo mat or bamboo curtain splint;
(2) the preparation solids content is the phenolic resin glue of 20-25%;
(3) drying and shaping, impregnation dry by the fire bamboo mat, bamboo curtain splint to water content 8-14% under 100-120 ℃ of condition, carry out bamboo mat, bamboo curtain splint, wooden skin and tectorial paper impregnation respectively, and the impregnation time is 10-25 minute;
(4) glue that dries in the air, after drying in the air behind the impregnation glue 70-120 minute, go again 100-120 ℃ dry to water content 6-14%;
(5) assembly is pressed tectorial paper, veneer, bamboo mat, short bamboo curtain splint, long bamboo curtain splint, short bamboo curtain splint, long bamboo curtain splint, bamboo mat order assembly, inserts wooden skin and tectorial paper at last;
(6) hot pressing, hot pressing and keeping 18-50 minute under 135-140 ℃, 3.0～3.2Mps condition, the limit arrangement is carried out in step-down when being cooled to below 60 ℃ after the taking-up.
2. a kind of production method of bamboo plywood coated with film according to claim 1 is characterized in that: said tectorial paper impregnation is that 80-120 gram paper is dipped in the glue of basic stain processing, and impregnation resin content is that 0.52-0.60Kg/ opens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101791810A CN101830025B (en) | 2010-05-18 | 2010-05-18 | Production method of bamboo plywood coated with film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101791810A CN101830025B (en) | 2010-05-18 | 2010-05-18 | Production method of bamboo plywood coated with film |
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| CN101830025A CN101830025A (en) | 2010-09-15 |
| CN101830025B true CN101830025B (en) | 2012-09-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103802400A (en) * | 2014-01-22 | 2014-05-21 | 南充富达竹业有限公司 | High-strength flame-retardant laminating bamboo plywood and production method thereof |
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| CN102848434A (en) * | 2011-07-01 | 2013-01-02 | 赵星 | Novel manufacturing process of bamboo plywood forms for concrete |
| CN102581887A (en) * | 2012-03-02 | 2012-07-18 | 茂友木材股份有限公司 | Bamboo-wood composited container floor and production method thereof |
| CN104015233A (en) * | 2014-05-23 | 2014-09-03 | 安徽清保竹业有限公司 | Production process of bamboo plywood |
| CN104723418B (en) * | 2015-04-15 | 2017-07-14 | 章冬华 | The processing technology of fire prevention bamboo slab rubber |
| CN104723416B (en) * | 2015-04-15 | 2017-06-23 | 章冬华 | Fire prevention bamboo slab rubber |
| CN106493800A (en) * | 2015-09-06 | 2017-03-15 | 湖南中南神箭竹木有限公司 | A kind of group blank technology of high-strength bamboo wood composite board |
| CN105666631A (en) * | 2016-02-05 | 2016-06-15 | 广西生态工程职业技术学院 | Gluing method for recombined bamboo for outdoor use |
| CN106166771A (en) * | 2016-07-18 | 2016-11-30 | 中南林业科技大学 | A kind of manufacture method of Vitex chinensis Mill. sham wood |
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| CN2238122Y (en) * | 1995-08-01 | 1996-10-23 | 赵仁杰 | Bamboo compound board |
| CN1249227A (en) * | 1998-09-25 | 2000-04-05 | 中南林学院工业学院 | Secondary forming technology for double-coated bamboo mat or curtain and ply-bamboo |
| CN1312151A (en) * | 2000-03-08 | 2001-09-12 | 赵仁杰 | Making process of radial thin bamboo strip curtain composite board |
| CN101653956A (en) * | 2008-08-22 | 2010-02-24 | 赵仁杰 | Manufacturing method for impregnated paper veneer bamboo plywood |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11129211A (en) * | 1997-10-27 | 1999-05-18 | Shinakimoku Kogyo Kk | Coated composite plywood for form and manufacture thereof |
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2010
- 2010-05-18 CN CN2010101791810A patent/CN101830025B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2238122Y (en) * | 1995-08-01 | 1996-10-23 | 赵仁杰 | Bamboo compound board |
| CN1249227A (en) * | 1998-09-25 | 2000-04-05 | 中南林学院工业学院 | Secondary forming technology for double-coated bamboo mat or curtain and ply-bamboo |
| CN1312151A (en) * | 2000-03-08 | 2001-09-12 | 赵仁杰 | Making process of radial thin bamboo strip curtain composite board |
| CN101653956A (en) * | 2008-08-22 | 2010-02-24 | 赵仁杰 | Manufacturing method for impregnated paper veneer bamboo plywood |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103802400A (en) * | 2014-01-22 | 2014-05-21 | 南充富达竹业有限公司 | High-strength flame-retardant laminating bamboo plywood and production method thereof |
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| CN101830025A (en) | 2010-09-15 |
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