A kind of high-brightness light Surface decorated woodbased panels with paper impregnated thermosetting resins and manufacture craft thereof
Technical field
The invention belongs to building decoration technology field, specifically, relate to a kind of high-brightness light Surface decorated woodbased panels with paper impregnated thermosetting resins and manufacture craft that is applied to the fields such as furniture, kitchen cabinet, construction and decoration.
Background technology
Tradition decoration panel is that natural timber or Recombinant Wood slicing are become to certain thickness thin slice, adheres to face veneer, a kind of surfacing for interior decoration or Furniture manufacture that then hot pressing forms.Due to timber resources worsening shortages, expensive, produced gradually a lot of substitutes, as core-board, particieboard, density board and Surface decorated woodbased panels with paper impregnated thermosetting resins etc.Wherein, the processing of need to spraying paint when core-board is used for fitting up, easily causes room air pollution; The water proofing property of particieboard, density board and the feature of environmental protection are difficult to reach the requirement of interior decoration.
Tradition high-brightness light decoration panel is mainly that to paint series products be main, and most wood-based plates, through primings, are dried, polishing, once to repeatedly go up the complex process that finish paint is dried again and polish again.Surface decorated woodbased panels with paper impregnated thermosetting resins is that to take the wood-based plates such as particieboard, fiberboard be base material, take and floods the dalle that the bond paper that contains the resins such as melamine is finishing material.Manufacture process is to soak putting into melamine resin adehsive stick with the paper of different colours or texture, is then dried to certain state of cure, is mated formation at particieboard, medium density fibre board (MDF) or hardboard surface, the decorative panel forming through hot pressing.High-brightness light Surface decorated woodbased panels with paper impregnated thermosetting resins is a kind of novel veneer products in Surface decorated woodbased panels with paper impregnated thermosetting resins category, is widely used in the fields such as furniture, kitchen cabinet, construction and decoration.
High-pressure melamine PLASTIC LAMINATED (being called for short HPL), also be a kind of of traditional high-brightness light decoration material, it before this multilayer impregnated bond paper after long period hot pressing, form high light decorative panel, through back side sanding, gluing, the technical process such as cold pressing and artificial board substrate's gummed, form high-brightness light decoration panel again.Traditional paint high-brightness light decoration panel is because of production process complexity, cost of labor is high, production efficiency is low, floor space is large, cause production environment and domestic environment to pollute simultaneously, the resistance to xanthochromia ability of its product, after using, outward appearance is not durable, so portioned product is by high-pressure melamine PLASTIC LAMINATED light products substitution.
CN 101858131A discloses the non-painting veneer composite board that a kind of low-temp low-pressure condition is made, relate to a kind of composite board, can solve existing core-board and spray paint and process the secondary pollution bring in finishing and furniture production process, on Surface decorated woodbased panels with paper impregnated thermosetting resins, fixing melamine wood grain paper only could be preferably under the condition of HTHP and the problem of wood-based plate plate face gummed.Melamine-impregnated woodgrained paper laminating is in substrate surface, after solidifying without any the release of the harmful substances such as VOC.But cannot meet the requirement to plate surface outward appearance plumpness that people are more and more higher.
CN 101585203B discloses a kind of method of processing and manufacturing environmentally friendly aggrandizement wood floor by vacuum ammonia, and E2 level floor base material is put into vacuum tank, makes to produce in case the vacuum of-0.06~-0.08MPa, to the unit's of passing into sheet material ammonia consumption in case, is 0.67~1.43kg/m
3liquefied ammonia, when liquid ammonia gasification and after being adsorbed in fiberboard completely, remove vacuum, the sheet material that taking-up ammonia content is 5~15mg/100g, by this sheet material and dipping abrasion-proof paper, dipping decorative paper and dipping balance paper assembly, hot pressing in press, then by the sheet material after moulding and the ground boards half-finished product that cuts into certain specification, through health balance, fluting tenon, sealing wax, packing, make environment-friendly type laminated flooring.Although this technique production efficiency is high, cost is low, non-environmental-pollution, technique or more complicated need to be used the equipment such as vacuum tank, and the input of equipment is taken higher.
Along with the development of Surface decorated woodbased panels with paper impregnated thermosetting resins facing technology, conventional low short-cycle hot-pressing technology also certain applications, in high-brightness light Surface decorated woodbased panels with paper impregnated thermosetting resins, but all cannot be broken through the requirement of the appearance plumpness of high-brightness light.
High-pressure melamine PLASTIC LAMINATED has solved the upper production efficiency problem of furniture factory application, but PLASTIC LAMINATED is produced because being multi-ply paper, and employing is cryogenic high pressure long period technique, has equipment enlarging, production cycle is long, the problems such as cost is high, the wasting of resources, and secondary operations need be used gluing, the equipment such as cold pressing, increase production process, with PLASTIC LAMINATED, exist processing easily to collapse the problems such as limit, also make high-brightness light PLASTIC LAMINATED also be restricted in application.
Therefore current conventional low pressure short cycle processing, is attempting production one-shot forming high-brightness light decoration panel, but immature because of technique eventually, product surface and intrinsic mechanical property produce more problem, cannot reach good effect.
Summary of the invention
The object of the invention is to for the problems referred to above, a kind of product size good stability is provided, high-brightness light Surface decorated woodbased panels with paper impregnated thermosetting resins and manufacture craft thereof that scratch-resistant performance is good.
For achieving the above object, by the following technical solutions:
A high-brightness light Surface decorated woodbased panels with paper impregnated thermosetting resins, comprises substrate and impregnated bond paper, and described face artificial board comprises impregnated bond paper layer, substrate and impregnated bond paper layer in order successively.
Substrate of the present invention is the product that can buy easily on market.Can select core-board, particieboard, fiberboard, glued board or other wood-based plate etc.Core-board has the advantages such as light weight, easily processing, nail-holding ability are good, indeformable, is the ideal material that interior decoration and top-grade furniture are made.Fiberboard is the wood-based plate that is interweaved moulding and utilized its intrinsic glueability to make by lignocellulose fiber.In manufacture process, can apply adhesive and (or) additive.Fiberboard such as has a material intensity difference is little, not easy to crack evenly, in length and breadth at the advantage, of many uses.MDF is that density board is a kind of, wherein also has long fine plate and short fiber plate.That to take wood fibre or other plant fiber be raw material, through smashing, fiber separation, dry after-applied Lauxite or other applicable adhesive, then a kind of artificial board of making after hot pressing.Due to MDF surfacing, smooth, be convenient to the finishing materials such as gluing plane veneer processed and tissue paper, and be convenient to cover with paint, lacquer, colour wash, etc. and saving color.Preferred density plate of the present invention, further preferred MDF.
Facing impregnated bond paper of the present invention is through dipping amino resins (being mainly melmac) or phenolic resins by bond paper, and being dried to the gum dipped paper of certain state of cure, this gum dipped paper is can be mutually bonding or post on wood-based plate surface through hot pressing.The first polymers of the preferred synthetic resin of impregnated bond paper layer of the present invention or the prepolymer impregnated bond paper wood-based plate decorative layer that drying forms again.Impregnated bond paper impregnation resin content of the present invention is preferably 120%-150%, volatile matter 5%-6.5%, precuring degree 55% to 70%, further preferably 65% to 70%.
Another object of the present invention is to provide a kind of manufacture craft of making high-brightness light Surface decorated woodbased panels with paper impregnated thermosetting resins, comprise the following steps:
1) select substrate and make impregnated bond paper;
2) order being arranged in order according to bond paper, substrate and bond paper, carries out assembly;
3) substrate of having organized and bond paper are mated formation to the lower steel form of every layer of press by entering panel assembly, the surface reflection degree of steel form be 600 degree to 700 degree, preferably 650 degree to 700 degree;
4) closed press, boosts to 10-25kg/mm
2, the heating platen that is simultaneously rapidly heated is to 110-160 ℃;
5) keep pressure 1-10min;
6) fast cooling release;
7) open press, by the board discharging device taking-up finished product of mating formation.
Described step 7) after, optionally carry out: 8) to the clear limit of finished product check, warehouse-in.
Described step 4) after closed press, boost to 11-16kg/mm
2, preferred 12-15kg/mm
2, the heating platen that is simultaneously rapidly heated is to 125-155 ℃, preferred 130-150 ℃, described intensification preferably by steam as heat medium.
Described step 5) keeping the time of pressure is 2.5-6min, is preferably 3-5min, more preferably 4.3min.
Described step 6) fast cooling, to normal temperature-75 ℃, is preferably normal temperature-65 ℃, further preferred normal temperature-45 ℃, most preferably normal temperature.
Described step 1) substrate of selecting is preferably MDF, and its superficial density reaches 900-1200kg/m
3; Impregnated bond paper impregnation resin content 120%-150%, volatile matter 5%-6.5%, precuring degree 55% to 70%, further preferably 65% to 70%.MDF surfacing, smooth, be convenient to the finishing materials such as gluing plane veneer processed and tissue paper, and be convenient to cover with paint, lacquer, colour wash, etc. and saving color.
Preferred a kind of manufacture craft of making high-brightness light Surface decorated woodbased panels with paper impregnated thermosetting resins, comprises the following steps:
1) select substrate and make impregnated bond paper;
2) order being arranged in order according to bond paper, substrate and bond paper, carries out assembly;
3) good substrate and the bond paper of assembly mated formation to the lower steel form of every layer of press by entering panel assembly;
4) closed press, boosts to 10-15kg/cm
2, in 5min, be warmed up to 125-135 ℃ simultaneously, keep 1-5min, continue to boost to 15-25kg/cm
2, preferred 18-20kg/cm
2;
5) keep pressure 1-10min;
6) in 5min, be cooled to normal temperature, and unload and be pressed onto 5kg/cm
2, keep 3-5min, continue pressure release to atmospheric pressure;
7) open press, by the board discharging device taking-up finished product of mating formation.
Described step 4) press adopts steam as heat medium, makes the heating-up time from normal temperature to 150 degree, can be controlled at 3 to 5 minutes, and from 150 degree to normal temperature, be controlled at 3 to 5 minutes cool time.
The present invention is also applicable to make common Surface decorated woodbased panels with paper impregnated thermosetting resins, and described wood-based plate is comprised of impregnated bond paper layer, substrate and impregnated bond paper layer in order successively.Its manufacture craft is as follows:
1) select substrate and make impregnated bond paper;
2) order being arranged in order according to bond paper, substrate and bond paper, carries out assembly;
3) substrate of having organized and bond paper are mated formation to the lower steel form of every layer of press by entering panel assembly, the surface reflection degree of steel form be 600 degree to 700 degree, preferably 650 degree to 700 degree;
4) closed press, boosts to 10-25kg/mm
2, the heating platen that is simultaneously rapidly heated is to 110-160 ℃;
5) keep pressure 1-10min;
6) fast cooling release;
7) open press, by the board discharging device taking-up finished product of mating formation.
Described step 7) after, optionally carry out: 8) to the clear limit of finished product check, warehouse-in.
Described step 4) after closed press, boost to 11-16kg/mm
2, preferred 12-15kg/mm
2, the heating platen that is simultaneously rapidly heated is to 125-155 ℃, preferred 130-150 ℃, described intensification preferably by steam as heat medium.
Described step 5) keeping the time of pressure is 2.5-6min, is preferably 3-5min, more preferably 4.3min.
Described step 6) fast cooling, to normal temperature-75 ℃, is preferably normal temperature-65 ℃, further preferred normal temperature-45 ℃, most preferably normal temperature.
Described step 1) substrate of selecting is preferably MDF, and its superficial density reaches 900-1200kg/m
3; Impregnated bond paper impregnation resin content 120%-150%, volatile matter 5%-6.5%, precuring degree 55% to 70%, further preferably 65% to 70%.
This technique is boosted, stress-relief process all can be realized segmentation and control, and product one-shot forming, has reduced manufacturing procedure, the surface reflection degree of product is also improved simultaneously, only need just can reach high light effect same in 20 minutes, effectively improve production output and efficiency, reduce the heat pressing process time.
Beneficial effect of the present invention is: the present invention adopts the cold cold technique going out of entering, and its effect is mainly manifested in, and greatly reduces the heat pressing process time on the one hand, enhances productivity, and significantly improves on the other hand product surface quality, and saturation degree promotes greatly, is specially:
1, conventional high-tension PLASTIC LAMINATED needs the pressing cycle of 60 to 100 minutes, the present invention only needs just can reach for 20 minutes same high-brightness light effect, effectively improve production output and efficiency, the surface reflection degree of product can reach 90-130 degree, more preferably 110-120 degree, the light uniformity can reach more than 80%, gloss homogeneous and bright.
2, product surface reflectance promotes 10 to 20 degree than the short-period product of low pressure, effectively promotes quality.
3, product one-shot forming, without resemble high pressing fireproof plate decoration panel again secondary cold pressing, reduce manufacturing procedure.
4, effectively prevent the rear attenuation of substrate pressure, affect serviceability, effectively improving product dimensional stability.
5, this product is compared with traditional paint high-brightness light product surface, effectively improves scratch-resistant performance.
Below the present invention is described in more detail.But following example is only simple and easy example of the present invention, does not represent or limit the scope of the present invention, and interest field of the present invention is as the criterion with claims.
The specific embodiment
For the present invention is described better, be convenient to understand technical scheme of the present invention, typical but non-limiting embodiment of the present invention is as follows:
A high-brightness light Surface decorated woodbased panels with paper impregnated thermosetting resins, comprises substrate and impregnated bond paper, and described face artificial board comprises impregnated bond paper layer, substrate and impregnated bond paper layer in order successively, and described impregnated bond paper is preferably high-brightness light impregnated bond paper.
Described substrate is core-board, particieboard, fiberboard, glued board or other wood-based plate etc., preferred density plate, further preferred MDF.Because MDF fibr tissue is even, interfibrous bonding strength is high, therefore its MOR, plane tensile strength, modulus of elasticity are good; Surfacing, smooth, be convenient to the finishing materials such as gluing plane veneer processed and tissue paper, and be convenient to cover with paint, lacquer, colour wash, etc. and saving color.In order to meet the requirement of this manufacture craft, preferably MDF is as substrate.
Facing impregnated bond paper of the present invention is through dipping amino resins (being mainly melmac) or phenolic resins by bond paper, and being dried to the gum dipped paper of certain state of cure, this gum dipped paper is can be mutually bonding or post on wood-based plate surface through hot pressing.The first polymers that impregnated bond paper decorative layer of the present invention is synthetic resin or the prepolymer impregnated bond paper wood-based plate decorative layer that drying forms again.Impregnated bond paper impregnation resin content 120%-150%, volatile matter 5%-6.5%, precuring degree 55% to 70%, further preferably 65% to 70%.
The manufacture craft specific embodiment of the present invention is as follows:
Embodiment mono-: 1) selecting substrate is core-board, and impregnated bond paper need meet following technological requirement: impregnation resin content 120%, volatile matter 6.5%, precuring degree 65%;
2) order of being separated by layer by layer according to substrate and bond paper, carries out assembly;
3) substrate of having organized and bond paper are mated formation to the lower steel form of every layer of press by entering panel assembly, the surface reflection degree of steel form is 650 degree;
4) closed press, boosts to 16kg/mm
2, heating platen to 140 ℃ is rapidly heated simultaneously;
5) keep pressure 2.5min;
6) fast cooling to 75 ℃ also release;
7) open press, by the board discharging device taking-up finished product of mating formation.
8) to the clear limit of finished product check, warehouse-in.
Embodiment bis-: 1) selecting substrate is MDF, and impregnated bond paper need meet following technological requirement: impregnation resin content 150%, volatile matter 5%, precuring degree 70%; MDF superficial density reaches 900kg/m
3;
2) order of being separated by layer by layer according to substrate and bond paper, carries out assembly;
3) substrate of having organized and bond paper are mated formation to the lower steel form of every layer of press by entering panel assembly, the surface reflection degree of steel form is 700 degree;
4) closed press, boosts to 13kg/mm
2, heating platen to 125 ℃ is rapidly heated simultaneously;
5) keep pressure 4.3min;
6) fast cooling to 65 ℃ also release;
7) open press, by the board discharging device taking-up finished product of mating formation.
8) to the clear limit of finished product check, warehouse-in.
Embodiment tri-: 1) selecting substrate is MDF, and impregnated bond paper need meet following technological requirement: impregnation resin content 135%, volatile matter 6%, precuring degree 55%; MDF superficial density reaches 1200kg/m
3;
2) order of being separated by layer by layer according to substrate and bond paper, carries out assembly;
3) substrate of having organized and bond paper are mated formation to the lower steel form of every layer of press by entering panel assembly, the surface reflection degree of steel form is 600 degree;
4) closed press, boosts to 11kg/mm
2, heating platen to 155 ℃ is rapidly heated simultaneously;
5) keep pressure 6min;
6) fast cooling to 45 ℃ also release;
7) open press, by the board discharging device taking-up finished product of mating formation.
8) to the clear limit of finished product check, warehouse-in.
Embodiment tetra-: 1) selecting substrate is MDF, and impregnated bond paper need meet following technological requirement: impregnation resin content 140%, volatile matter 5.8%, precuring degree 60%; MDF superficial density reaches 1120kg/m
3;
2) order of being separated by layer by layer according to substrate and bond paper, carries out assembly;
3) substrate of having organized and bond paper are mated formation to the lower steel form of every layer of press by entering panel assembly, the surface reflection degree of steel form is 630 degree;
4) closed press, boosts to 25kg/mm
2, heating platen to 160 ℃ is rapidly heated simultaneously;
5) keep pressure 10min;
6) fast cooling to 55 ℃ also release;
7) open press, by the board discharging device taking-up finished product of mating formation.
8) to the clear limit of finished product check, warehouse-in.
Embodiment five: 1) selecting substrate is core-board, and impregnated bond paper need meet following technological requirement: impregnation resin content 132%, volatile matter 5.3%, precuring degree 63%;
2) order of being separated by layer by layer according to substrate and bond paper, carries out assembly;
3) substrate of having organized and bond paper are mated formation to the lower steel form of every layer of press by entering panel assembly, the surface reflection degree of steel form is 680 degree;
4) closed press, boosts to 10kg/mm
2, heating platen to 110 ℃ is rapidly heated simultaneously;
5) keep pressure 1min;
6) fast cooling is to normal temperature release;
7) open press, by the board discharging device taking-up finished product of mating formation.
8) to the clear limit of finished product check, warehouse-in.
Embodiment six: 1) selecting substrate is glued board, and makes impregnated bond paper;
2) order being arranged in order according to bond paper, substrate and bond paper, carries out assembly;
3) good substrate and the bond paper of assembly mated formation to the lower steel form of every layer of press by entering panel assembly;
4) closed press, boosts to 10/cm
2, in 5min, be warmed up to 135 ℃ simultaneously, keep 1min, continue to boost to 15kg/cm
2;
5) keep pressure 10min;
6) in 5min, be cooled to normal temperature, and unload and be pressed onto 5kg/cm
2, keep 3min, continue pressure release to atmospheric pressure;
7) open press, by the board discharging device taking-up finished product of mating formation.
Embodiment seven: 1) selecting substrate is core-board, and makes impregnated bond paper;
2) order being arranged in order according to bond paper, substrate and bond paper, carries out assembly;
3) good substrate and the bond paper of assembly mated formation to the lower steel form of every layer of press by entering panel assembly;
4) closed press, boosts to 15kg/cm
2, in 5min, be warmed up to 130 ℃ simultaneously, keep 2min, continue to boost to 25kg/cm
2;
5) keep pressure 1min;
6) in 5min, be cooled to normal temperature, and unload and be pressed onto 5kg/cm
2, keep 5min, continue pressure release to atmospheric pressure;
7) open press, by the board discharging device taking-up finished product of mating formation.
Embodiment eight: 1) selecting substrate is core-board, and makes impregnated bond paper;
2) order being arranged in order according to bond paper, substrate and bond paper, carries out assembly;
3) good substrate and the bond paper of assembly mated formation to the lower steel form of every layer of press by entering panel assembly;
4) closed press, boosts to 12kg/cm
2, in 5min, be warmed up to 125 ℃ simultaneously, keep 5min, continue to boost to 20kg/cm
2;
5) keep pressure 6min;
6) in 5min, be cooled to normal temperature, and unload and be pressed onto 5kg/cm
2, keep 4min, continue pressure release to atmospheric pressure;
7) open press, by the board discharging device taking-up finished product of mating formation.
The present invention selects to be applicable to the impregnated bond paper of technological requirement, selects in addition superficial density high, and the measured base material of cellulosic, as plain board raw material, makes it to obtain better effect after technique hot pressing of the present invention.
Applicant's statement, person of ordinary skill in the field is on the basis of above-described embodiment, by the concrete content point value of above-described embodiment parameter, technical scheme phase component with summary of the invention part, thereby the new number range producing, also be one of record scope of the present invention, the application, for making description simple and clear, is no longer enumerated these number ranges.
Applicant's statement, the present invention illustrates technological process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned technological process, does not mean that the present invention must rely on above-mentioned technological process and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to the selection of the interpolation of the equivalence replacement of the selected material of the present invention and auxiliary material, concrete mode etc., within all dropping on protection scope of the present invention and open scope.