CN101269504A - Technique for manufacturing middle/high-density pressed-fibre board for direct printing - Google Patents
Technique for manufacturing middle/high-density pressed-fibre board for direct printing Download PDFInfo
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- CN101269504A CN101269504A CNA2008100160310A CN200810016031A CN101269504A CN 101269504 A CN101269504 A CN 101269504A CN A2008100160310 A CNA2008100160310 A CN A2008100160310A CN 200810016031 A CN200810016031 A CN 200810016031A CN 101269504 A CN101269504 A CN 101269504A
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Abstract
The invention relates to a production technology of a medium and high density fibre panel, wherein, the medium and high density fibre panel can be used for direct printing, and the surface thereof is glabrous. The production technology has the working procedures of wood chip screening and washing, stewing, hot grinding, glue blending and spreading, drying, paving and molding, heat pressing, and cooling. The steam pressure when in stewing ranges from 0.70 to 0.80MPa, and the time is 2 to 5 minutes; molten refined wax, the quality of which is 0.9 to 1.1 percent of absolute dry fiber, is added when in hot grinding defibrination; the pressure in a grinding chamber is lower than the pressure in a stewing cylinder, wherein, the pressure of the stewing cylinder is 0.01 to 0.04MPa; in the work procedure of glue blending and spreading, urea-formaldehyde resin modified by polyvinyl alcohol and firming agent are added into the fibre; after the fibre is dried, the water ratio thereof ranges from 8 percent to 12 percent; before entering into a hot-press, parting medium which is 1ml to 2ml is sprayed onto the upper surface and the lower surface of a plate blank. The production technology has the advantages that by utilizing the technology to produce the fibre panel, the surface texture and the hydrolytic resistance of a plank stuff are improved, the surface processability of the fibre panel is increased, the printing effect of the fibre panel when in direct printing is increased, and the production cost of printing process is lowered.
Description
Technical field
The invention belongs to the Wood-based Panel Production technical field, relate to any surface finish, can be used for the directly middle and higher density Fibreboard Production technology of printing.
Background technology
The production technology of middle and higher density fiberboard mainly comprises operations such as former wooden shavings (or outsourcing wood chip), wood chip screening and cleaning, boiling, defibrator process, glue compounding and applying, drying, precompressed, hot pressing, sanction saw, cooling at present.The middle and higher density fiberboard of Sheng Chaning can only satisfy the instructions for use of general fibre plate owing to adopt the routine techniques measure in boiling, defibrator process and glue compounding and applying operation thus, and you can realize direct printing.Along with the raising of China's rapid economy development and people's living standard, it is diversified that the processing mode of fiberboard becomes.The main processing mode of fiberboard has veneer to handle, directly decorate and machining.Directly printing belongs to a kind of mode of direct decoration, is to adopt analogy method at the needed pattern of fiberboard surface printing, and then coats a kind of decoration mode of protective paint.In recent years, along with the progress of continuous flat production line technology and the raising of fiberboard thin plate quality, it is more general to adopt analogy method to print the technology of various patterns on thin plate, but be subject to any surface finish degree and the water resistance of fiberboard, the printing quality that fiberboard directly prints is not good, and printing cost is higher, has hindered the deep development that this facing mode is processed in the fiberboard printing.In order to guarantee the pattern quality of plate face, should guarantee the fiberboard any surface finish, the fiber exquisiteness, free of glue spots, water stain, dust spot bark etc., sheet material has the excellent water tolerance energy.
Summary of the invention
The objective of the invention is to use certain technical conditions, produce the surface smoothness height, the middle and higher density fiberboard that water resistance is good makes fiberboard be applicable to the processing mode of direct printing.
Its technical scheme comprises wood chip screening and cleaning, boiling, defibrator process, glue compounding and applying, drying, the moulding of mating formation, hot pressing and refrigerating work procedure.Wood chip after the washing is transported to pre-boiling cylinder by the wood chip pump and carries out preliminarily softened, and then delivers to boiling in the boiling cylinder by the stopper spiral, and further softening, the steam pressure in the boiling cylinder is 0.70-0.80Mpa, digestion time 2-5 minute; Fibre is separated in the mill chamber defibrator process that enters defibrator after chip steaming is abundant, adds the molten refined paraffin that accounts for bone dry fiber quality 0.9-1.1% simultaneously in the mill chamber, and the pressure of mill chamber is lower than the pressure 0.01-0.04Mpa of boiling cylinder; Add polyvinyl alcohol modification Lauxite and curing agent in the fiber of glue compounding and applying process, the adding proportion of polyvinyl alcohol modification Lauxite is the 8-11% that hard resin accounts for the mass percent of bone dry fiber, curing agent is the ammonium sulfate of concentration 20%, and the adding proportion of curing agent is the 1-3% that solid ammonium sulfate accounts for the mass percent of solid polyethylene alcohol modified urea-formaldehyde resin; To keep its moisture content behind the fiber drying, the moulding of mating formation at 8%-12%; Before entering hot press the remover of 1ml-2ml is sprayed according to every square metre of slab in the upper and lower surface of slab, hot pressing forms fiberboard then.
Wood chip is selected the clean sheet of poplar for use; The specification of the clean sheet of poplar is long 40-60mm, wide 1 5-30mm, thick 2-6mm.
Advantage of the present invention: use this explained hereafter fiberboard, improved the surface quality and the water resistance of sheet material, strengthened the Surface Machining performance of fiberboard, improved the directly printing effect of printing of fiberboard, reduced the production cost of printing processing.
The specific embodiment
Enumerate below a kind of typical industrial production technology overall process, comprising: former wooden shavings (or the outsourcing wood chip) → screening → washing → pre-boiling → boiling → defibrator process → glue compounding and applying → drying → sorting → moulding of mating formation → spray film → precompressed → hot pressing → sanction saw → cooling → storage health → check → finished product.The present invention is on the basis of existing technological process, and to the improvement of carrying out with the lower part: as the clean sheet of poplar that the former wooden shavings or the outsourcing wood chip of raw material are selected long 50mm, wide 20mm, thick 3mm for use, the wood chip stacking was deposited after raw material entered factory.At first wood chip is screened and washes in the production engineering, remove the impurity such as silt on wood chip surface.
Wood chip after the washing is transported to pre-boiling cylinder by the wood chip pump and carries out preliminarily softened, and then delivers to boiling in the boiling cylinder by the stopper spiral, and is further softening.Steam pressure in the boiling cylinder is 0.70-0.80Mpa, digestion time 2-5 minute.Fibre is separated in the mill chamber that enters defibrator after chip steaming is abundant, adds the molten refined paraffin that accounts for bone dry fiber quality 0.9-1.1% simultaneously in the mill chamber.The pressure of mill chamber is lower than the pressure 0.01-0.04Mpa of boiling cylinder, improves the Grinding Quality of fiber by pressure reduction.Fiber applies the polyvinyl alcohol modification Lauxite that accounts for its quality 8-11% and the curing agent of 1-3%.The ratio that applies of polyvinyl alcohol modification Lauxite is the mass percent that hard resin accounts for bone dry fiber.Curing agent is the ammonium sulfate of concentration 20%, and the adding proportion of curing agent is the mass percent that solid ammonium sulfate accounts for solid polyethylene alcohol modified urea-formaldehyde resin.To keep its moisture content behind the fiber drying, the moulding of mating formation at 8%-12%.The model of before entering hot press the upper and lower surface of slab being made according to the German bodyguard company that lives of the amount sprinkling of every square metre of slab sprinkling 1ml-2ml is 2003 remover, hot pressing formation fiberboard then.
Claims (2)
1, a kind of directly medium and high density fibre panel production technology of printing that is used for, comprise wood chip screening and cleaning, boiling, defibrator process, glue compounding and applying, drying, the moulding of mating formation, hot pressing and refrigerating work procedure, it is characterized in that: the wood chip after the washing is transported to pre-boiling cylinder by the wood chip pump and carries out preliminarily softened, and then deliver to boiling in the boiling cylinder by the stopper spiral, further softening, steam pressure in the boiling cylinder is 0.70-0.80Mpa, digestion time 2-5 minute; Fibre is separated in the mill chamber defibrator process that enters defibrator after chip steaming is abundant, adds the molten refined paraffin that accounts for bone dry fiber quality 0.9-1.1% simultaneously in the mill chamber, and the pressure of mill chamber is lower than the pressure 0.01-0.04Mpa of boiling cylinder; Add polyvinyl alcohol modification Lauxite and curing agent in the fiber of glue compounding and applying process, the adding proportion of polyvinyl alcohol modification Lauxite is the 8-11% that hard resin accounts for the mass percent of bone dry fiber, curing agent is the ammonium sulfate of concentration 20%, and the adding proportion of curing agent is the 1-3% that solid ammonium sulfate accounts for the mass percent of solid polyethylene alcohol modified urea-formaldehyde resin; To keep its moisture content behind the fiber drying, the moulding of mating formation at 8%-12%; Before entering hot press the remover of 1ml-2ml is sprayed according to every square metre of slab in the upper and lower surface of slab, hot pressing forms fiberboard then.
2, the directly medium and high density fibre panel production technology of printing that is used for according to claim 1, it is characterized in that: wood chip is selected the clean sheet of poplar for use; The specification of the clean sheet of poplar is long 40-60mm, wide 15-30mm, thick 2-6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100160310A CN100566956C (en) | 2008-05-15 | 2008-05-15 | Be used for the directly medium and high density fibre panel production technology of printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100160310A CN100566956C (en) | 2008-05-15 | 2008-05-15 | Be used for the directly medium and high density fibre panel production technology of printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101269504A true CN101269504A (en) | 2008-09-24 |
| CN100566956C CN100566956C (en) | 2009-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2008100160310A Active CN100566956C (en) | 2008-05-15 | 2008-05-15 | Be used for the directly medium and high density fibre panel production technology of printing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153228A (en) * | 2014-07-31 | 2014-11-19 | 广西三威林产工业有限公司 | Wood chip washing and conveying device |
| CN104290168A (en) * | 2014-08-15 | 2015-01-21 | 东营正和木业有限公司 | Manufacturing method for thermosetting waterborne polyurethane composite fiberboard |
| CN106426498A (en) * | 2016-11-14 | 2017-02-22 | 保定金宏达轻质板材制造有限公司 | Pitch-wood-wool plate production process |
| CN107030812A (en) * | 2017-04-06 | 2017-08-11 | 大亚人造板集团有限公司 | It is a kind of can high-fidelity printing fiberboard production processes |
| CN109016059A (en) * | 2018-08-17 | 2018-12-18 | 阜阳大可新材料股份有限公司 | A kind of preparation method of ultra-thin ultra-low formaldehyde burst size fiberboard |
-
2008
- 2008-05-15 CN CNB2008100160310A patent/CN100566956C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153228A (en) * | 2014-07-31 | 2014-11-19 | 广西三威林产工业有限公司 | Wood chip washing and conveying device |
| CN104290168A (en) * | 2014-08-15 | 2015-01-21 | 东营正和木业有限公司 | Manufacturing method for thermosetting waterborne polyurethane composite fiberboard |
| CN106426498A (en) * | 2016-11-14 | 2017-02-22 | 保定金宏达轻质板材制造有限公司 | Pitch-wood-wool plate production process |
| CN107030812A (en) * | 2017-04-06 | 2017-08-11 | 大亚人造板集团有限公司 | It is a kind of can high-fidelity printing fiberboard production processes |
| CN109016059A (en) * | 2018-08-17 | 2018-12-18 | 阜阳大可新材料股份有限公司 | A kind of preparation method of ultra-thin ultra-low formaldehyde burst size fiberboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100566956C (en) | 2009-12-09 |
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