CN109676730A - A kind of Wood Bleaching agent prescription and its treatment process and processing unit - Google Patents
A kind of Wood Bleaching agent prescription and its treatment process and processing unit Download PDFInfo
- Publication number
- CN109676730A CN109676730A CN201811350136.XA CN201811350136A CN109676730A CN 109676730 A CN109676730 A CN 109676730A CN 201811350136 A CN201811350136 A CN 201811350136A CN 109676730 A CN109676730 A CN 109676730A
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- Prior art keywords
- bleaching agent
- wood
- agent prescription
- application roll
- wood bleaching
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/04—Combined bleaching or impregnating and drying of wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/12—Impregnating by coating the surface of the wood with an impregnating paste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/02—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by compressing
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a kind of Wood Bleaching agent prescriptions, the formula is mixed with by hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urea and water, by weight, hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urea content are respectively as follows: 950~1050:3~6:1.5~2.5:9~11.The invention also discloses a kind of Wood Bleaching agent prescription treatment process, comprising the following steps: S01, configuration such as above-mentioned Wood Bleaching agent solution；S02, by Wood Bleaching agent even spread in S01 to wood surface；S03, coated timber, which is put into hot press, carries out hot pressing.The invention also discloses a kind of Wood Bleaching agent prescription processing units.A kind of Wood Bleaching agent prescription disclosed by the invention and its treatment process and processing unit, bleaching action is more mild, the original texture of log scale and wood color can preferably be gone back, drug effect can be always maintained at before bleaching agent has all used simultaneously, waste liquid will not be generated because bleaching agent fails, reduce production cost.
Description
Technical field
The present invention relates to a kind of Wood Bleaching agent prescription and its treatment process and processing unit, belong to Wood Bleaching field.
Background technique
Wood Bleaching be using redox reaction, by timber chromophoric group, auxochrome group and in colouring it is related
Constituent aoxidized, restored, degrade destruction to achieve the purpose that decoloration.Wood Bleaching processing can improve the view of timber
Feel characteristic and decorative performance, improves wood utilization value.Timber after bleaching has texture and the dual Optimality of wood color
Energy.
The basic chromophoric group of timber is the carbonyl and carboxyl of phenyl ring, quinones, lignin benzene oxide monomer side chain, and carbon-to-carbon is double
Chain.In addition, the presence of the auxochrome groups such as hydroxyl (- OH) and methoxyl group also makes timber be easy to change colour.As potential chromophoric group,
Itself be it is colourless, majority exist with conjugated double bond, when the effect by light and oxygen, in conjugated system pi bond fracture generate
Free radical, photochemical degradation, which occurs, deepens wood color.Therefore, with the chromophoric group and envelope that can absorb visible light in destruction timber
The chemical agent with oxidisability or reproducibility for closing auxochrome group, can generate bleaching effect.
As the hydrogen peroxide and sodium chlorite of oxidized form bleaching agent, hydrogenperoxide steam generator pH value is often adjusted to alkalinity, it will
Sodium chlorite aqueous solution's pH value is adjusted to acidity, so that their oxidation bleaching ability be made to significantly increase.Reduced form bleaching agent connection
The various aqueous solutions of the rongalite of ammonium hydrate, in room temperature, bleaching power is very low, if being heated to 80 DEG C, reducing bleach ability is big
It is big to reinforce.
Above-mentioned bleaching agent is to the bleaching timber obtained after Wood Bleaching, because bleaching process is swift in response acutely, texture and
It is more stiff that wood color is shown, and bleaching agent uses at normal temperature, has usually just failed before bleaching agent exhausts, and is produced into
This is higher.
Summary of the invention
The technical problem to be solved by the present invention is to, it overcomes the deficiencies of existing technologies, it is more mild to provide a kind of bleaching action,
The original texture of log scale and wood color can be preferably gone back, Wood Bleaching agent prescription and its processing of bleaching agent effectiveness time are extended
Technique and processing unit.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of Wood Bleaching agent prescription, the formula mix system with water by hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urea
It is standby to form, by weight, hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urea content be respectively as follows: 950~1050:3~6:1.5~
2.5:9~11.
The quality of water is equal with the summation of hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urea quality in the formula.
The mass fraction of hydrogen peroxide is 30%.
A kind of Wood Bleaching agent prescription treatment process, comprising the following steps:
S01, configuration Wood Bleaching agent prescription as described in any one in claims 1 to 3；
S02, by Wood Bleaching agent even spread in S01 to wood surface；
S03, coated timber, which is put into hot press, carries out hot pressing.
In S03, at 100~120 DEG C, hot pressing pressure is arranged in 6~8kg/cm for hot pressing temperature setting2, hot pressing time 1.5
~5 minutes.
In S02, the storage temperature of bleaching agent is constant at 3~5 DEG C.
A kind of Wood Bleaching agent prescription processing unit, it is characterised in that: including gluing trough, setting in the gluing trough
Have a liquid lime chloride, be provided with application roll and lower application roll above the gluing trough, the upper application roll be located at it is described under apply
Above rubber roller, the lower application roll is contacted with the liquid lime chloride, and plank to be bleached is arranged in the upper application roll and lower sizing
Between roller, the upper application roll and the rotation of lower application roll drive plank to be bleached mobile and smear liquid lime chloride to its surface.
The outside of the gluing trough is provided with condenser.
Beneficial effects of the present invention: the present invention provides a kind of Wood Bleaching agent prescription and its treatment process and processing dress
It sets, hydrogen peroxide is that strong oxidizer, urea and hydrogen peroxide generate carbamide peroxide (also known as mistake under interior stabilizer function in the present invention
Carbonic acid amide), stability is good, and release oxygen is slow, and the effectiveness time is long, and activity and dissolubility in water are more than SODIUM PERCARBONATE
It is high.Hydrogen peroxide is decomposed reaction in the solution, the perhydroxyl radical ion (HO of generation2 ?) there is blanching effect, in addition, bicarbonate
Ammonium is activation auxiliary agent, and aqueous solution can enhance the bleaching effect of hydrogen peroxide in alkalinity；Sodium persulfate aqueous solution is in alkalescent, is used
Mild blanching effect is presented in its stoste.Alkaline condition is conducive to the decomposition of hydrogen peroxide, increases bleaching effect.It is made using the present invention
When standby bleaching agent bleaches timber, reacts more mild, can preferably go back the original texture of log scale and wood color.Simultaneously
Condenser is arranged in external in gluing trough, makes the temperature long term constant of liquid lime chloride within the scope of its effectiveness, be not in because
Medical fluid failure generates waste liquid, reduces the production cost of bleaching agent.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of Wood Bleaching agent prescription processing unit of the present invention；
Fig. 2 is hot press hot pressing schematic diagram in the present invention.
Appended drawing reference is as follows in figure: application roll, 4- gluing trough, 5- bleaching under the upper application roll of 1-, 2- plank to be bleached, 3-
Solution, 6- condenser.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings, and following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
Specific embodiment 1
The invention discloses a kind of Wood Bleaching agent prescription, the formula is by hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urine
Element is mixed to form with water, and by weight, hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urea content are respectively as follows: 950:3:1.5:9.
The quality of water is equal with the summation of hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urea quality in the formula.Specifically, it weighs
95kg hydrogen peroxide, 0.3kg ammonium hydrogen carbonate, 0.15kg sodium peroxydisulfate and 0.9kg urea, which are added in 96.35kg water, to be sufficiently mixed,
Liquid lime chloride is made.Wherein, the mass fraction of hydrogen peroxide is 30%.
A kind of Wood Bleaching agent prescription treatment process of the invention, comprising the following steps:
S01 configures above-mentioned Wood Bleaching agent solution.
Wood Bleaching agent solution in S01 is added in plywood single board gluing trough, passes through applying on glue spreader by S02
Rubber roller will be sliced the above-mentioned liquid lime chloride of plate surface even spread having a size of the Manchurian ash of 1220 × 2440 × 3mm.Additionally by painting
Condenser outside glue trough keeps the temperature of bleaching agent solution constant at 3~5 DEG C, to fully ensure that drug effect.
S03, coated timber, which is put into hot press, carries out hot pressing.Wherein, hot pressing temperature setting is at 100 DEG C, hot pressing pressure
Power is arranged in 6kg/cm2, hot pressing time is 1.5 minutes.
Above-mentioned steps complete the bleaching to wood single-plate, and the Manchurian ash slice plate surface before processing is outmoded, there is black muscle,
Whiteness is 19.5%；The black muscle phenomenon in Manchurian ash surface is resolved after bleaching, whiteness 25.7%.
As shown in Figure 1, a kind of Wood Bleaching agent prescription processing unit of the invention, including gluing trough 4, gluing trough 4
It is inside provided with liquid lime chloride 5, application roll 1 and lower application roll 3 are provided with above gluing trough 4, upper application roll 1 is located at lower sizing
3 top of roller, lower 3 part of application roll are immersed in liquid lime chloride 5, are provided with plank 2 between upper application roll 1 and lower application roll 3, are led to
It crosses application roll 1 and lower application roll 3 and gluing is carried out to plank 2, the outside of gluing trough 4 is provided with condenser 6.As shown in Fig. 2,
Hot pressing is carried out to the timber 2 for being coated with bleaching agent solution using upper hot pressboard 7 and lower hot pressing board 8.
Specific embodiment 2
The invention discloses a kind of Wood Bleaching agent prescription, the formula is by hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urine
Element is mixed to form with water, and by weight, hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urea content are respectively as follows: 1000:4.5:2:
10.The quality of water is equal with the summation of hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urea quality in the formula.Specifically, claim
100kg hydrogen peroxide, 0.45kg ammonium hydrogen carbonate, 0.2kg sodium peroxydisulfate and 1kg urea is taken to be added in 101.65kg water sufficiently mixed
It closes, liquid lime chloride is made.Wherein, the mass fraction of hydrogen peroxide is 30%.
A kind of Wood Bleaching agent prescription treatment process of the invention, comprising the following steps:
S01 configures above-mentioned Wood Bleaching agent solution.
Wood Bleaching agent solution in S01 is added in plywood single board gluing trough, passes through applying on glue spreader by S02
Rubber roller will be sliced the above-mentioned liquid lime chloride of plate surface even spread having a size of the Manchurian ash of 1220 × 2440 × 3mm.Additionally by painting
Condenser outside glue trough keeps the temperature of bleaching agent solution constant at 3~5 DEG C, to fully ensure that drug effect.
S03, coated timber, which is put into hot press, carries out hot pressing.Wherein, hot pressing temperature setting is at 110 DEG C, hot pressing pressure
Power is arranged in 7kg/cm2, hot pressing time is 3 minutes.
Above-mentioned steps complete the bleaching to wood single-plate, and the Manchurian ash slice plate surface before processing is outmoded, there is black muscle,
Whiteness is 19.5%；The black muscle phenomenon in Manchurian ash surface is resolved after bleaching, whiteness 26.3%.
As shown in Figure 1, a kind of Wood Bleaching agent prescription processing unit of the invention, including gluing trough 4, gluing trough 4
It is inside provided with liquid lime chloride 5, application roll 1 and lower application roll 3 are provided with above gluing trough 4, upper application roll 1 is located at lower sizing
3 top of roller, lower 3 part of application roll are immersed in liquid lime chloride 5, are provided with plank 2 between upper application roll 1 and lower application roll 3, are led to
It crosses application roll 1 and lower application roll 3 and gluing is carried out to plank 2, the outside of gluing trough 4 is provided with condenser 6.As shown in Fig. 2,
Hot pressing is carried out to the timber 2 for being coated with bleaching agent solution using upper hot pressboard 7 and lower hot pressing board 8.
Specific embodiment 3
The invention discloses a kind of Wood Bleaching agent prescription, the formula is by hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urine
Element is mixed to form with water, and by weight, hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urea content are respectively as follows: 1050:6:2.5:
11.The quality of water is equal with the summation of hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urea quality in the formula.Specifically, claim
105kg hydrogen peroxide, 0.6kg ammonium hydrogen carbonate, 0.25kg sodium peroxydisulfate and 0.11kg urea is taken to be added in 105.96kg water sufficiently
Mixing, is made liquid lime chloride.Wherein, the mass fraction of hydrogen peroxide is 30%.
A kind of Wood Bleaching agent prescription treatment process of the invention, comprising the following steps:
S01 configures above-mentioned Wood Bleaching agent solution.
Wood Bleaching agent solution in S01 is added in plywood single board gluing trough, passes through applying on glue spreader by S02
Rubber roller will be sliced the above-mentioned liquid lime chloride of plate surface even spread having a size of the Manchurian ash of 1220 × 2440 × 3mm.Additionally by painting
Condenser outside glue trough keeps the temperature of bleaching agent solution constant at 3~5 DEG C, to fully ensure that drug effect.
S03, coated timber, which is put into hot press, carries out hot pressing.Wherein, hot pressing temperature setting is at 120 DEG C, hot pressing pressure
Power is arranged in 8kg/cm2, hot pressing time is 5 minutes.
Above-mentioned steps complete the bleaching to wood single-plate, and the Manchurian ash slice plate surface before processing is outmoded, there is black muscle,
Whiteness is 19.5%；The black muscle phenomenon in Manchurian ash surface is resolved after bleaching, whiteness 26.1%.
As shown in Figure 1, a kind of Wood Bleaching agent prescription processing unit of the invention, including gluing trough 4, gluing trough 4
It is inside provided with liquid lime chloride 5, application roll 1 and lower application roll 3 are provided with above gluing trough 4, upper application roll 1 is located at lower sizing
3 top of roller, lower 3 part of application roll are immersed in liquid lime chloride 5, are provided with plank 2 between upper application roll 1 and lower application roll 3, are led to
It crosses application roll 1 and lower application roll 3 and gluing is carried out to plank 2, the outside of gluing trough 4 is provided with condenser 6.As shown in Fig. 2,
Hot pressing is carried out to the timber 2 for being coated with bleaching agent solution using upper hot pressboard 7 and lower hot pressing board 8.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of Wood Bleaching agent prescription, it is characterised in that: the formula is by hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urea
It is mixed with water, by weight, hydrogen peroxide, ammonium hydrogen carbonate, sodium peroxydisulfate and urea content are respectively as follows: 950~1050:
3~6:1.5~2.5:9~11.
2. a kind of Wood Bleaching agent prescription according to claim 1, it is characterised in that: the quality of water and double in the formula
Oxygen water, ammonium hydrogen carbonate, the summation of sodium peroxydisulfate and urea quality are equal.
3. a kind of Wood Bleaching agent prescription according to claim 1, it is characterised in that: the mass fraction of hydrogen peroxide is
30%.
4. a kind of Wood Bleaching agent prescription treatment process, it is characterised in that: the following steps are included:
S01, configuration Wood Bleaching agent prescription as described in any one in claims 1 to 3；
S02, by Wood Bleaching agent even spread in S01 to wood surface；
S03, coated timber, which is put into hot press, carries out hot pressing.
5. a kind of Wood Bleaching agent prescription treatment process according to claim 4, it is characterised in that: in S03, hot pressing temperature
At 100~120 DEG C, hot pressing pressure is arranged in 6~8kg/cm for setting2, hot pressing time is 1.5~5 minutes.
6. a kind of Wood Bleaching agent prescription treatment process according to claim 4, it is characterised in that: in S02, bleaching agent
Storage temperature is constant at 3~5 DEG C.
7. a kind of Wood Bleaching agent prescription processing unit, it is characterised in that: including gluing trough (4), in the gluing trough (4)
Be provided with liquid lime chloride (5), be provided with application roll (1) and lower application roll (3) above the gluing trough (4), it is described on apply
Rubber roller (1) is located above the lower application roll (3), and the lower application roll (3) contacts with the liquid lime chloride (5), wood to be bleached
Plate (2) is arranged between the upper application roll (1) and lower application roll (3), the upper application roll (1) and lower application roll (3) rotation
It drives plank to be bleached (2) mobile and liquid lime chloride (5) is smeared to its surface.
8. a kind of Wood Bleaching agent prescription processing unit according to claim 7, it is characterised in that: the gluing trough
(4) outside is provided with condenser (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811350136.XA CN109676730B (en) | 2018-11-14 | 2018-11-14 | Wood bleaching agent formula and treatment process and treatment device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811350136.XA CN109676730B (en) | 2018-11-14 | 2018-11-14 | Wood bleaching agent formula and treatment process and treatment device thereof |
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| Publication Number | Publication Date |
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| CN109676730A true CN109676730A (en) | 2019-04-26 |
| CN109676730B CN109676730B (en) | 2020-07-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114055991A (en) * | 2021-12-03 | 2022-02-18 | 德华兔宝宝装饰新材股份有限公司 | High-color-fastness antibacterial dyed decorative veneer |
| CN116197981A (en) * | 2023-02-03 | 2023-06-02 | 惠州市摩彩装饰材料有限公司 | Preparation method of UV semi-open coating plate for digital printing of wood skin textures |
| CN116277351A (en) * | 2023-04-19 | 2023-06-23 | 千年舟新材科技集团股份有限公司 | Bleaching agent special for post bleaching process and shaving board manufacturing process based on post bleaching process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114055991A (en) * | 2021-12-03 | 2022-02-18 | 德华兔宝宝装饰新材股份有限公司 | High-color-fastness antibacterial dyed decorative veneer |
| CN116197981A (en) * | 2023-02-03 | 2023-06-02 | 惠州市摩彩装饰材料有限公司 | Preparation method of UV semi-open coating plate for digital printing of wood skin textures |
| CN116277351A (en) * | 2023-04-19 | 2023-06-23 | 千年舟新材科技集团股份有限公司 | Bleaching agent special for post bleaching process and shaving board manufacturing process based on post bleaching process |
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| CN109676730B (en) | 2020-07-31 |
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Application publication date: 20190426 Assignee: Shanghai Yicun Fuwang Wood Industry Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020980006996 Denomination of invention: A wood bleaching agent formula and its treatment process and treatment device Granted publication date: 20200731 License type: Common License Record date: 20201021 Application publication date: 20190426 Assignee: Shanghai Gaoyi Decoration Material Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020980007079 Denomination of invention: A wood bleaching agent formula and its treatment process and treatment device Granted publication date: 20200731 License type: Common License Record date: 20201022 |
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Effective date of registration: 20230308 Address after: 214299 Industrial Economic Community (Democratic Community), Xushe Town, Yixing City, Wuxi City, Jiangsu Province Patentee after: Yixing Deda Wood Industry Co.,Ltd. Address before: Nanjing City, Jiangsu province 210037 Longpan Road No. 159 Patentee before: NANJING FORESTRY University |