CN110499673A - A kind of decoration composite faced plywood bent - Google Patents
A kind of decoration composite faced plywood bent Download PDFInfo
- Publication number
- CN110499673A CN110499673A CN201910793614.2A CN201910793614A CN110499673A CN 110499673 A CN110499673 A CN 110499673A CN 201910793614 A CN201910793614 A CN 201910793614A CN 110499673 A CN110499673 A CN 110499673A
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- Prior art keywords
- facial tissue
- glue
- paper
- base stock
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
Abstract
The invention belongs to decorative materials technologies, in particular to a kind of decoration composite faced plywood that can be bent, composite faced plywood includes double-layer structure, it is followed successively by ground paper layer and facial tissue layer from top to bottom, ground paper layer is made of the superposition of several base stocks, facial tissue layer is a facial tissue, base stock is all wood paper for infiltrating base stock glue, facial tissue is the facing paper for infiltrating facial tissue glue, facial tissue glue is that formaldehyde is blended with after melamine reaction with a small amount of bis- (dimethyl amido ethyl) ethers, and composite faced plywood is put rear hot pressing well by each base stock and facial tissue layer stackup and obtained.
Description
Technical field
The invention belongs to decorative materials technology, in particular to a kind of decoration composite faced plywood that can be bent.
Background technique
The substantially manufacturing process of decoration composite faced plywood is that facial tissue is put into resin glue and is impregnated, then dry solid
Change to certain degree and obtains glue film facial tissue；Resulting glue film facial tissue is layered on the base stock surface after same impregnation drying again,
Hot pressing makes the sizing material on glue film facial tissue and base stock occur mutually to bond after by thermal softening, to form composite faced plywood.
Either facial tissue or base stock, glue penetrate into paper in immersing glue process, the paper after impregnation after drying,
If resin glue toughness therein is insufficient, the compound paper layer after drying can be broken off (resin in paper layer after bending
The fracture of profile can also burst paper), it is put down so the composite faced plywood that this kind of impregnation paper are combined can only generally be used as
Face decoration, without can be carried out bending, which limits the use occasions of composite faced plywood.
There is relatively good toughness after water soluble phenol resin dry solidification, it is not easy to break after bending, it should be multiple
Each ideal impregnation glue of paper in thick china is closed, but water soluble phenol resin is coloured (red partially), is used for compound patch
When on panel, it is only used for the impregnation rather than facial tissue of base stock, this is because the facial tissue of composite faced plywood top layer plays dress
Decorations effect, it requires glue used in facial tissue be it is transparent, the visual effect of facial tissue could not be influenced in this way.
Current facial tissue glue be all much using melamine glue, it is tough although the transparency of this glue is ideal
Property is not fine.
Summary of the invention
In order to solve the above technical problems, the present invention provides the decoration composite faced plywood that one kind can be bent, including two layers
Structure, respectively ground paper layer and facial tissue layer from top to bottom, ground paper layer be several it is compound by the dry base stock hot pressing of impregnation and
At, facial tissue layer is a facial tissue dry by impregnation,
Base stock is all wood paper of thickness 0.15mm~0.18mm, and generally 4 to 6 base stocks form ground paper layer；Facial tissue is
The facing paper (printing pattern or color obtain on body paper) of thickness 0.08mm~0.1mm,
The pliable disconnected problem of facial tissue in this programme by the preparation of facial tissue glue to avoid impregnation after dry, makes based on three
Poly cyanamid glue is that the decoration of facial tissue glue can equally be decorated with composite faced plywood with the shape after bending, so as to
It is mounted, is fixed on furniture edge,
Facial tissue glue the preparation method comprises the following steps: formalin is adjusted to alkalinity after, be added melamine and stir thereto
Temperature reaction is mixed, until caprolactam is added thereto after reaction system clarification and continues insulation reaction, until reaction system appearance is turbid
Cool down after point and para toluene sulfonamide, alcohols and urea is added and reacted, then vacuumize the free aldehyde of removal, and to resulting
Bis- (dimethyl amido ethyl) ether [(CH are added in reaction system3)2NCH2CH2OCH2CH2N(CH3)2] and stir sufficiently, blowing,
Preferably, concrete operations are as follows: add 540 parts by weight of formalin, the water that Solute mass fraction is 37% into reaction kettle
450 parts by weight, 1 parts by weight of sodium hydrate aqueous solution that Solute mass fraction is 30%, after 35 DEG C are warming up under stirring
550 parts by weight of melamine are added thereto, be kept stirring and carry out insulation reaction after being warming up to 95 DEG C, until reaction system is clarified
80.5 parts by weight of caprolactam are added thereto afterwards, continue after insulated and stirred reacts and cloud point occur to reaction system, by reactant
System is cooled to 80 DEG C, and 185 parts by weight of ethyl alcohol, 75 parts by weight of para toluene sulfonamide, 20 weight of 1,4-butanediol are then added thereto
Measure part, continue for reaction system to be cooled to 60 DEG C, thereto be added 5 parts by weight of urea, be dispersed with stirring sufficiently after to reaction kettle into
Row vacuumizes 30 minutes, and bis- 87 parts by weight of (dimethyl amido ethyl) ether are then added into resulting reaction system and stir and divide
It dissipates sufficiently, blowing,
Facing paper is immersed in above-mentioned resulting facial tissue glue, take out facing paper after dipping is abundant and passes through compression roller
Pressure is except extra glue on facing paper, after the roll-in of compression roller, on facing paper institute there are the weight of facial tissue glue be to fill
The 105~130% of paper weight are adornd, the facing paper by impregnation and after roll-in dry that (facing paper is from 85 DEG C of entrance of baking at 85 DEG C
Case is 40 seconds to the baking oven used time is left), obtain facial tissue；
Equally, all wood paper as base stock is immersed in base stock glue, takes out all wood paper simultaneously after dipping is abundant
One by one by squeezing roll-in except glue extra on all wood paper is stayed on individual all wood paper after the roll-in of compression roller
The weight of some base stock glue is the 40~55% of individual all wood paper weight, by all wood paper after impregnation and roll-in in 85 DEG C
Lower drying (all wood paper is 40 seconds from the baking oven into 85 DEG C to the baking oven used time is left), obtains base stock,
Base stock glue the preparation method comprises the following steps: phenol and tribromphenol are added in formalin, risen under alkaline condition
After temperature reaction, cools down and ethyl alcohol and urea is added into reaction system and stirs sufficiently discharging,
Preferably, concrete operation step are as follows: the phenol of 448 parts by weight is added into reaction kettle, is warming up to after 70 DEG C again
392 parts by weight of formalin that Solute mass fraction is 37%, 20.5 parts by weight (NH of ammonium hydroxide are added into reaction kettle3Matter
Measure score be 25%), be warming up under stirring 95 DEG C of reactions to system it is muddy after, the reaction was continued 30 minutes, then to anti-
Answer in system addition 146 parts by weight of phenol, 25 parts by weight of tribromphenol, be stirred to react 20 minutes after being cooled to 70 DEG C, then to
In reaction system be added Solute mass fraction be 37% 348 parts by weight of formalin, Solute mass fraction be 30% hydrogen
30 parts by weight of aqueous solution of sodium oxide, are warming up to 95 DEG C again, are stirred to react after becoming muddy to system and are kept for 5 minutes, will be reacted
System is cooled to 80 DEG C, and 604 parts by weight of industrial alcohol, 5 parts by weight of urea are added into reaction system, cool down after stirring sufficiently,
Discharging,
Required amount of above-mentioned base stock is stacked into the ground paper layer before being formed one by one, then by above-mentioned facial tissue laying in
On ground paper layer upper surface, the decoration composite faced plywood that can be bent is obtained after hot-forming,
Wherein, hot-forming operation is carried out using multidaylight press, hot pressing temperature is 130~150 DEG C, unit pressure when hot pressing
Power is 50~80KG/cm2, hot pressing time is 30~60 minutes,
When specific operation, after based on the heating plate on multidaylight press to base stock and the facial tissue pressurization for stacking completion, then to this
Heating plate carries out steam heating, after being increased to after certain temperature heat-insulation pressure keeping for a period of time, first drops to heating plate (into cooling water)
Temperature to 35 DEG C or so, then release and unclamp heating plate, discharging.
Specific embodiment
Embodiment 1
The preparation of facial tissue glue:
540 parts by weight of formalin that Solute mass fraction is 37%, 450 parts by weight of water, molten are added into reaction kettle
1 parts by weight of sodium hydrate aqueous solution that matter mass fraction is 30%, (stirring of preparation process whole process) is warming up under stirring
550 parts by weight of melamine are added after 35 DEG C thereto, be kept stirring and carry out insulation reaction after being warming up to 95 DEG C, until reactant
80.5 parts by weight of caprolactam are added thereto after system's clarification, are continued after insulated and stirred reacts and cloud point occur to reaction system, it will
Reaction system is cooled to 80 DEG C, and 185 parts by weight of ethyl alcohol, 75 parts by weight of para toluene sulfonamide, Isosorbide-5-Nitrae-fourth two are then added thereto
20 parts by weight of alcohol continue for reaction system to be cooled to 60 DEG C, and 5 parts by weight of urea are added thereto, to anti-after being dispersed with stirring sufficiently
It answers kettle vacuumize 30 minutes, after resulting reaction system is cooled to 30 DEG C, bis- (dimethyl amido second is added thereto
Base) ether 87 parts by weight and be dispersed with stirring sufficiently, blowing,
Facing paper (Jinan Jitong is along magnificent ornament materials Co., Ltd JTSH-N01) is immersed in above-mentioned resulting facial tissue glue
In water (facial tissue glue is excessive), facing paper is taken out after dipping is abundant and passes through extruding roll-in and removes glue extra on facing paper,
After the roll-in of compression roller, on facing paper there are facial tissue glue weight be facing paper original weight 110%, will soak
Facing paper after glue and roll-in dries (facing paper is 40 seconds from the baking oven into 85 DEG C to the baking oven used time is left) at 85 DEG C,
Obtain facial tissue；
The preparation of base stock glue:
The phenol of 448 parts by weight is added into reaction kettle, is warming up to after 70 DEG C and Solute mass is added into the reaction kettle again
392 parts by weight of formalin that score is 37%, 20.5 parts by weight (NH of ammonium hydroxide3Mass fraction be 25%), in stirring shape
Under state (stirring of preparation process whole process) be warming up to 95 DEG C of reactions to system it is muddy after, the reaction was continued 30 minutes, then to reactant
146 parts by weight of phenol, 25 parts by weight of tribromphenol are added in system, are stirred to react after being cooled to 70 DEG C 20 minutes, then to reaction
In system be added Solute mass fraction be 37% 348 parts by weight of formalin, Solute mass fraction be 30% hydroxide
30 parts by weight of sodium water solution, are warming up to 95 DEG C again, are stirred to react after becoming muddy to system and are kept for 5 minutes, by reaction system
80 DEG C are cooled to, 604 parts by weight of industrial alcohol, 5 parts by weight of urea are added into reaction system, are cooled to 30 after stirring sufficiently
DEG C, discharging,
It will be immersed in base stock glue with a thickness of all wood paper of 0.15mm (base stock glue is excessive), it will be complete after dipping is abundant
Wood pulp paper, which takes out and passes through, squeezes roll-in except glue extra on all wood paper, after the roll-in of compression roller, on all wood paper
There are the weight of base stock glue be the 45% of all wood paper original weight, all wood paper by impregnation and after roll-in is in 85 DEG C
Lower drying (all wood paper is 40 seconds from the baking oven into 85 DEG C to the baking oven used time is left), obtains base stock；
5 above-mentioned resulting base stocks (long 250cm, width 125cm) are stacked into the ground paper layer before neatly being formed, then will
1 above-mentioned gained facial tissue (long 250cm, width 125cm) is neatly laid on ground paper layer upper surface, contains the comprehensive of 6 paper for resulting
Combined paper layer is sent into multidaylight press and carries out hot-forming operation, and the heating plate on multidaylight press is forced into 70KG/ to comprehensive paper layer
cm2, then steam heating is carried out to the heating plate, after temperature of heating plate is increased to 145 DEG C after heat-insulation pressure keeping 35 minutes, first to heating
Plate (into cooling water) is cooled to 35 DEG C, then release and unclamps heating plate to get to the composite faced plywood after hot pressing, composite faced plywood
Integral thickness be 0.85mm.In composite faced plywood plate face centered region saw under long 240cm, width 120cm size as at
Product plate.
Embodiment 2
Facial tissue glue with embodiment 1,
In the impregnation of facial tissue, the preparation process of drying, after the roll-in of compression roller, on facing paper there are facial tissue glue
The weight of water is the 122% of facing paper original weight, remaining operation is the same as embodiment 1；
The preparation process of base stock glue and base stock is the same as embodiment 1；
Facial tissue 1 obtained in the present embodiment is opened according to the hot-forming operation in embodiment 1, base stock 4 opens carry out hot pressing
It is compound and cut.
Embodiment 3
The preparation of facial tissue glue and facial tissue is the same as embodiment 1；
Base stock glue with embodiment 1,
In the impregnation of base stock, the preparation process of drying, after the roll-in of compression roller, on all wood paper there are base stock
The weight of glue is the 40% of all wood paper original weight, remaining operation is the same as embodiment 1；
Facial tissue 1 obtained in the present embodiment is opened according to the hot-forming operation in embodiment 1, base stock 4 opens carry out hot pressing
It is compound and cut.
Embodiment 4
The preparation of facial tissue glue and facial tissue is the same as embodiment 1；
The preparation of base stock glue and base stock is the same as embodiment 1；
Facial tissue 1 obtained in the present embodiment is opened, base stock 5 is opened and carries out that hot pressing is compound and when cutting, and temperature of heating plate increases
The heat-insulation pressure keeping time after to 145 DEG C is adjusted to 48 minutes, remaining operation is the same as embodiment 1.
Comparative example 1
Compared to embodiment 1, in the preparation process of facial tissue glue, any bis- (dimethyl amidos are not added for ending phase
Ethyl) ether, remaining component and operation are the same as embodiment 1；
The preparation process of facial tissue is the same as embodiment 1；
The preparation process of base stock glue and base stock is the same as embodiment 1；
Facial tissue 1 obtained in this comparative example is opened according to the hot-forming operation in embodiment 1, base stock 5 opens progress
Hot pressing is compound and cuts.
Comparative example 2
Compared to embodiment 1, in the preparation process of facial tissue glue, ending phase uses " isoamyl ethers of 86 parts by weight "
Instead of " bis- (dimethyl amido ethyl) ethers of 87 parts by weight ", remaining component and operation are the same as embodiment 1；
The preparation process of facial tissue is the same as embodiment 1；
The preparation process of base stock glue and base stock is the same as embodiment 1；
Facial tissue 1 obtained in this comparative example is opened according to the hot-forming operation in embodiment 1, base stock 5 opens progress
Hot pressing is compound and cuts.
Comparative example 3
Compared to embodiment 1, in the preparation process of facial tissue glue, ending phase uses " 1, the 5- bis- of 55.5 parts by weight
Aminopentane " replacement " bis- (dimethyl amido ethyl) ethers of 87 parts by weight ", remaining component and operation are the same as embodiment 1；
The preparation process of facial tissue is the same as embodiment 1；
The preparation process of base stock glue and base stock is the same as embodiment 1；
Facial tissue 1 obtained in this comparative example is opened according to the hot-forming operation in embodiment 1, base stock 5 opens progress
Hot pressing is compound and cuts.
Same bending experiment is carried out to the various embodiments described above, the obtained composite faced plywood of comparative example:
Using the various embodiments described above, the obtained production board of comparative example be sawn into long 120cm, width 100cm size as
Sample board,
Sample board is placed on sheet fabrication bending machine, fixed sample board utilizes the strip-shaped steel plate pair for being heated to 170 DEG C
Sample board is bent, and 170 DEG C of strip-shaped steel plate will by the overturning operation of the strip-shaped steel plate after contacting with sample board veneer 7 seconds
It is 135 ° that sample board, which is gradually bent to angle, after stopping 5 seconds, continues gradually for sample board to be bent to folder by the strip-shaped steel plate
Angle is 90 °, and after stopping 5 seconds, 170 DEG C of strip-shaped steel plate is left sample board, cooling to sample board,
Sample board after removing bending, sees whether bending place has cracking and bubbling: not cracking and be not bubbled as qualification.Detection effect
Fruit difference is as follows:
Embodiment 1: not by jackknifing, bending place, which is not cracked, not to be bubbled for facial tissue and base stock；
Embodiment 2: not by jackknifing, bending place, which is not cracked, not to be bubbled for facial tissue and base stock；
Embodiment 3: not by jackknifing, bending place, which is not cracked, not to be bubbled for facial tissue and base stock；
Embodiment 4: not by jackknifing, bending place, which is not cracked, not to be bubbled for facial tissue and base stock；
Comparative example 1: facial tissue is broken completely in bending place；
Comparative example 2: (fracture length close to 9/10, i.e., close to 90cm), i.e., facial tissue is almost broken in bending place
Unbroken place is set bubbling phenomenon also occur；
Comparative example 3: facial tissue is broken completely in bending place.
As it can be seen that the detection effect of facial tissue bending has significantly different in each embodiment and comparative example.The face of embodiment 1
It is added with a small amount of bis- (dimethyl amido ethyl) ethers in paper-hanging, is not added in comparative example 1, in comparative example 2,3
" isoamyl ether " and " 1,5- 1,5-DAP " replacement " bis- (dimethyl amido ethyl) ethers " is used respectively, isoamyl ether and 1,5-
1,5-DAP also has a strand similar to bis- (dimethyl amido ethyl) ether length, isoamyl ether branch distribution it is upper and
Bis- (dimethyl amido ethyl) ethers also have similar place, but isoamyl ether or 1, and the blending of 5- 1,5-DAP opposite paper-hanging changes
After property, effective consolidation is not had but.
Therefore, applicant thinks: the modified effect in the application is not essentially dependent on the molecular chain length of added substance, and
It is to have very big association with the group on the strand, it may be possible to certain groups or structure on bis- (dimethyl amido ethyl) ethers
Synergistic effect can be generated between the Cucumber in facial tissue layer, it is made to be far longer than strand to the toughening contribution of facial tissue layer
Length itself.
Claims (6)
1. the decoration composite faced plywood that one kind can be bent, it is characterised in that: the composite faced plywood includes double-layer structure, from
Under to ground paper layer and facial tissue layer is above followed successively by, the ground paper layer is made of the superposition of several base stocks, and the facial tissue layer is one
Facial tissue is opened, the composite faced plywood is put rear hot pressing well by each base stock and the facial tissue layer stackup and is obtained,
The facial tissue is the facing paper for infiltrating facial tissue glue, and the preparation method of the facial tissue glue is, formaldehyde is water-soluble
After liquid is adjusted to alkalinity, melamine is added thereto and stirs temperature reaction, until oneself is added thereto after reaction system clarification
Lactams simultaneously continues insulation reaction, until reaction system cool down after there is cloud point and be added para toluene sulfonamide, alcohols and urea into
Then row reaction vacuumizes the free aldehyde of removal, and bis- (dimethyl amido ethyl) ethers is added into resulting reaction system and stir
It mixes sufficiently, blowing；
The base stock is all wood paper for infiltrating base stock glue.
2. the decoration composite faced plywood that can be bent as described in claim 1, it is characterised in that: the thickness of all wood paper
For 0.15mm~0.18mm, the facing paper with a thickness of 0.08mm~0.1mm.
3. the decoration composite faced plywood that can be bent as described in claim 1, it is characterised in that: the ground paper layer is by 4 to 6
Open base stock superposition composition.
4. the decoration composite faced plywood that can be bent as described in claim 1, it is characterised in that: the system of the base stock glue
Preparation Method is that phenol and tribromphenol are added in formalin, under alkaline condition after temperature reaction, is cooled down and to reaction
Ethyl alcohol and urea are added in system and stirs sufficiently discharging.
5. the decoration composite faced plywood that can be bent as described in claim 1, it is characterised in that: the hot press operation uses
Multidaylight press carries out, and hot pressing temperature is 130~150 DEG C, and unit pressure when hot pressing is 50~80KG/cm2, hot pressing time 30
~60 minutes.
6. the decoration composite faced plywood that can be bent as described in claim 1, it is characterised in that: the infiltration facial tissue glue
The facing paper of water and/or the infiltration the immersing glue process of all wood paper of base stock glue be, by the facing paper or described
All wood paper is immersed in glue, and the facing paper or all wood paper are taken out and led to from the glue after dipping is abundant
It crosses and squeezes roll-in except glue extra on the facing paper or all wood paper, and dry.
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| CN201910793614.2A CN110499673A (en) | 2019-08-27 | 2019-08-27 | A kind of decoration composite faced plywood bent |
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|---|---|---|---|
| CN201910793614.2A CN110499673A (en) | 2019-08-27 | 2019-08-27 | A kind of decoration composite faced plywood bent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113233918A (en) * | 2021-04-27 | 2021-08-10 | 常州中复丽宝第复合材料有限公司 | Light heat-preservation high-toughness fireproof plate and preparation method thereof |
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Application publication date: 20191126 |