CN102699967A - Decoloration treatment method for wooden veneer - Google Patents
Decoloration treatment method for wooden veneer Download PDFInfo
- Publication number
- CN102699967A CN102699967A CN2012101940890A CN201210194089A CN102699967A CN 102699967 A CN102699967 A CN 102699967A CN 2012101940890 A CN2012101940890 A CN 2012101940890A CN 201210194089 A CN201210194089 A CN 201210194089A CN 102699967 A CN102699967 A CN 102699967A
- Authority
- CN
- China
- Prior art keywords
- liquid
- veneer
- processing
- water
- face
- Prior art date
- 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.)
- Granted
Links
Abstract
The invention relates to a wood decoloration treatment method belonging to the technical field of wood treatment. A decoloration treatment method for a wooden veneer, comprising the following steps of: (1) pretreatment: placing the wooden veneer into a sodium hydroxide solution; (2) basic decoloration: placing the veneer into a temporary liquid of a liquid A to be subjected to decoloration treatment: (3) acidic decoloration: placing the veneer into a temporary liquid of a liquid B to be subjected to decoloration treatment: and (4) cleaning and drying: taking the veneer out of the temporary liquid of the liquid B, and then placing the veneer into clear water to immerse for 1-2h, and drying. After the decoloration treatment method for the wooden veneer, black patina caused by bioerosion to the wooden veneer and blue patina caused by iron pollution to the wooden veneer can be thoroughly removed. The decoloration treatment method for the wooden veneer also has the characteristic of natural material color because of decoloration uniformity; meanwhile, the content of hydrogen peroxide is not high, and therefore, little damage is caused to the material, the whiteness can be up to 70% after spots caused by the blue patina and the black patina are treated, and no obvious color difference exists between the spots and an unpolluted part visually.
Description
Technical field
The present invention relates to the method that timber discolors and handles, belong to the timber treatment technology field.
Background technology
The existing used raw material of recombinant decorative material are main with artificial fast growing wood, mainly contain A Yousi, poplar, linden etc.Contain materials such as certain phenols, starch, sugar and protein because of timber, in log storage and mechanical processing process, a large amount of black changes, blue stain spot or colour band usually occur, have a strong impact on product quality.
Prior art is that the Chinese invention patent of 200910153433.X is said to discolor processing method such as application number of timber, the method that it mainly adopts 35～50wt% hydrogen peroxide solution under alkali condition, timber to be decoloured.The wood color variation that produces black change but process production practices confirmation, this method are only corroded by stain fungus to timber has effect, the blue stain that iron pollution is caused to produce little effect, and the hydrogen peroxide solution of higher concentration is bigger to the surface corrosion of plank.
Summary of the invention
The objective of the invention is for solving the problems of the technologies described above, a kind of Wooden veneer processing method of discoloring is provided.
Above-mentioned technical purpose of the present invention is achieved through following technical scheme:
A kind of Wooden veneer processing method of discoloring may further comprise the steps:
1. preliminary treatment: it is 9～11 sodium hydroxide solution that the Wooden veneer veneer is placed the pH value, and time 1～3h makes the preliminary treatment veneer;
2. alkalescence is discolored: A liquid is poured in 55～65 ℃ the water, transferred pH to 9～11 with NaOH again, process A liquid and face and use liquid; Place above-mentioned A liquid to face with the liquid processing of discoloring said preliminary treatment veneer, the heating rate with 5～10 ℃/h during processing slowly is warming up to 80～90 ℃, and processing time 2～4h makes the alkalescence processing veneer that discolors;
3. acidity is discolored: B liquid is poured in 45～55 ℃ the water, transferred pH to 4～6 with phosphoric acid again, process B liquid and face and use liquid; Said alkalescence discolored handle veneer and face with taking out the liquid from A liquid, water washes and is placed on said B liquid and faces with the processing of discoloring in the liquid, and time 2～4h makes the acidity processing veneer that discolors;
4. cleaning-drying: said acidity discolored handle veneer and face with putting into clear water after taking out the liquid from B liquid and soak 1～2h, then drying;
Said A liquid is the mixed liquor that includes the material of following mass concentration: hydrogen peroxide solution 4～7%, sodium metasilicate 0.2～0.8%, ethylenediamine tetra-acetic acid 0.05～0.1%; Sodium sulphate 0.05～0.15%, magnesium sulfate 0.05～0.1%, NaOH 0.5～1%; Ammoniacal liquor 0.4～0.8%, solvent are water;
Said B liquid is the mixed liquor that includes the material of following mass concentration: sodium chlorate 1～3%, and sulfamic acid 0.02～0.2%, oxalic acid 0.5～1.5%, acetate 0.1～0.5%, phosphoric acid 0.3～1%, solvent are water.
Another object of the present invention provides a kind of black inorganic agent that discolors that becomes of Wooden veneer that solves.
A kind of Wooden veneer inorganic agent that discolors, it is characterized in that: it comprises A liquid;
A liquid is specially the mixed liquor of the material that includes following mass concentration: hydrogen peroxide solution 4～7%, sodium metasilicate 0.2～0.8%, ethylenediamine tetra-acetic acid 0.05～0.1%; Sodium sulphate 0.05～0.15%, magnesium sulfate 0.05～0.1%, NaOH 0.5～1%; Ammoniacal liquor 0.4～0.8%, solvent are water.
Of the present invention also have a purpose to provide a kind of inorganic agent that discolors that solves the Wooden veneer blue stain.
A kind of Wooden veneer inorganic agent that discolors, it is characterized in that: it comprises B liquid; B liquid is specially the mixed liquor of the material that includes following mass concentration: sodium chlorate 1～3%, and sulfamic acid 0.02～0.2%, oxalic acid 0.5～1.5%, acetate 0.1～0.5%, phosphoric acid 0.3～1%, solvent are water.
In actual production process, the inventor finds that the black change of timber mainly is because timber receives the erosion of stain fungus in storage process, and the wood color that causes changes; The blue stain of timber mainly is because the aldehydes matter in the timber contact with iron, chemical reaction generation black compound takes place and the wood color variation that causes, i.e. iron pollution.
A liquid provided by the invention and B liquid can thoroughly be removed the black change that Wooden veneer is caused by bioerosion after adopting method of the present invention, and the blue stain that causes of iron pollution.
In sum, the present invention has following technique effect:
A liquid provided by the invention and B liquid can thoroughly be removed the black change that Wooden veneer is caused by bioerosion after adopting method of the present invention, and the blue stain that causes of iron pollution.The present invention also has to discolor evenly makes the characteristics of wood color nature, simultaneously since hydrogen peroxide content high material is destroyed few, and blue stain or the black spot place that becomes after treatment whiteness can reach 70%, and visually do not have obvious aberration with pollution-free place.Whiteness is meant the degree of material surface white, representes with the percentage of white amount; The desirable degree of expression distance from look.The whiteness of measuring material is standard (whiteness 100% usually with magnesia; Reflectivity 100%); Above-mentioned technical characterictic is the key character that is different from prior art, and with prior art, the spot place of the wooden boards of black change of generation and blue stain its whiteness after treatment is difficult to reach 60%.
The specific embodiment
This specific embodiment only is to explanation of the present invention; It is not a limitation of the present invention; Those skilled in the art can make any modification to present embodiment as required after reading this specification, but as long as in claim scope of the present invention, all receive the protection of Patent Law.
Embodiment one
A kind of Wooden veneer inorganic agent that discolors, it is made up of A liquid;
A liquid is specially the mixed liquor of being made up of the material of following mass concentration: hydrogen peroxide solution 4%, and sodium metasilicate 0.2%, ethylenediamine tetra-acetic acid 0.05%, sodium sulphate 0.05%, magnesium sulfate 0.05%, NaOH 0.5%, ammoniacal liquor 0.4%, solvent are water.
Embodiment two
A kind of Wooden veneer inorganic agent that discolors, it is made up of A liquid;
A liquid is specially the mixed liquor of being made up of the material of following mass concentration: hydrogen peroxide solution 5%, and sodium metasilicate 0.3%, ethylenediamine tetra-acetic acid 0.06%, sodium sulphate 0.07%, magnesium sulfate 0.06%, NaOH 0.6%, ammoniacal liquor 0.5%, solvent are water.
Embodiment three
A kind of Wooden veneer inorganic agent that discolors, it is made up of A liquid;
A liquid is specially the mixed liquor of being made up of the material of following mass concentration: hydrogen peroxide solution 6%, and sodium metasilicate 0.4%, ethylenediamine tetra-acetic acid 0.07%, sodium sulphate 0.09%, magnesium sulfate 0.07%, NaOH 0.7%, ammoniacal liquor 0.6%, solvent are water.
Embodiment four
A kind of Wooden veneer inorganic agent that discolors, it is made up of A liquid;
A liquid is specially the mixed liquor of being made up of the material of following mass concentration: hydrogen peroxide solution 7%, and sodium metasilicate 0.6%, ethylenediamine tetra-acetic acid 0.08%, sodium sulphate 0.13%, magnesium sulfate 0.08%, NaOH 0.8%, ammoniacal liquor 0.7%, solvent are water.
Embodiment five
A kind of Wooden veneer inorganic agent that discolors, it is made up of A liquid;
A liquid is specially the mixed liquor of being made up of the material of following mass concentration: hydrogen peroxide solution 7%, and sodium metasilicate 0.8%, ethylenediamine tetra-acetic acid 0.1%, sodium sulphate 0.15%, magnesium sulfate 0.1%, NaOH 1.0%, ammoniacal liquor 0.8%, solvent are water.
Embodiment six
A kind of Wooden veneer inorganic agent that discolors, it is made up of A liquid;
A liquid is specially the mixed liquor of the material that includes following mass concentration: hydrogen peroxide solution 4%, and sodium metasilicate 0.2%, ethylenediamine tetra-acetic acid 0.05%, sodium sulphate 0.05%, magnesium sulfate 0.05%, NaOH 0.5%, ammoniacal liquor 0.4%, solvent are water.
In the present embodiment; Also contain nonionic surface active agent in the A liquid, said nonionic surface active agent can be one or more in condensation product, APEO compound monomer or their derivative of AEO, APES, fatty alcohol and oxirane.In the present embodiment, the content of nonionic surface active agent 0.5% with the interior treatment effect that does not all influence A liquid.
Embodiment seven
A kind of Wooden veneer inorganic agent that discolors, it is made up of A liquid;
A liquid is specially the mixed liquor of the material that includes following mass concentration: hydrogen peroxide solution 5%, and sodium metasilicate 0.3%, ethylenediamine tetra-acetic acid 0.06%, sodium sulphate 0.07%, magnesium sulfate 0.06%, NaOH 0.6%, ammoniacal liquor 0.5%, solvent are water.
In the present embodiment; Also contain nonionic surface active agent in the A liquid, said nonionic surface active agent can be one or more in condensation product, APEO compound monomer or their derivative of AEO, APES, fatty alcohol and oxirane.In the present embodiment, the content of nonionic surface active agent 0.5% with the interior treatment effect that does not all influence A liquid.
Embodiment eight
A kind of Wooden veneer inorganic agent that discolors, it is made up of A liquid;
A liquid is specially the mixed liquor of the material that includes following mass concentration: hydrogen peroxide solution 6%, and sodium metasilicate 0.4%, ethylenediamine tetra-acetic acid 0.07%, sodium sulphate 0.09%, magnesium sulfate 0.07%, NaOH 0.7%, ammoniacal liquor 0.6%, solvent are water.
In the present embodiment; Also contain nonionic surface active agent in the A liquid, said nonionic surface active agent can be one or more in condensation product, APEO compound monomer or their derivative of AEO, APES, fatty alcohol and oxirane.In the present embodiment, the content of nonionic surface active agent 0.5% with the interior treatment effect that does not all influence A liquid.
Embodiment nine
A kind of Wooden veneer inorganic agent that discolors, it is made up of A liquid;
A liquid is specially the mixed liquor of the material that includes following mass concentration: hydrogen peroxide solution 7%, and sodium metasilicate 0.6%, ethylenediamine tetra-acetic acid 0.08%, sodium sulphate 0.13%, magnesium sulfate 0.08%, NaOH 0.8%, ammoniacal liquor 0.7%, solvent are water.
In the present embodiment; Also contain nonionic surface active agent in the A liquid, said nonionic surface active agent can be one or more in condensation product, APEO compound monomer or their derivative of AEO, APES, fatty alcohol and oxirane.In the present embodiment, the content of nonionic surface active agent 0.5% with the interior treatment effect that does not all influence A liquid.
In the present embodiment, also contain EDTA in the A liquid, the content of EDTA 0.05% with the interior treatment effect that does not all influence A liquid.
Embodiment ten
A kind of Wooden veneer inorganic agent that discolors, it is made up of A liquid;
A liquid is specially the mixed liquor of the material that includes following mass concentration: hydrogen peroxide solution 7%, and sodium metasilicate 0.8%, ethylenediamine tetra-acetic acid 0.1%, sodium sulphate 0.15%, magnesium sulfate 0.1%, NaOH 1%, ammoniacal liquor 0.8%, solvent are water.
In the present embodiment; Also contain nonionic surface active agent in the A liquid, said nonionic surface active agent can be one or more in condensation product, APEO compound monomer or their derivative of AEO, APES, fatty alcohol and oxirane.In the present embodiment, the content of nonionic surface active agent 0.5% with the interior treatment effect that does not all influence A liquid.
In the present embodiment, also contain EGTA in the A liquid, the content of EGTA 0.05% with the interior treatment effect that does not all influence A liquid.
Embodiment 11
A kind of Wooden veneer inorganic agent that discolors, it is made up of B liquid;
B liquid is specially the mixed liquor of the material that includes following mass concentration: sodium chlorate 1.0%, and sulfamic acid 0.02%, oxalic acid 0.5%, acetate 0.1%, phosphoric acid 0.3%, solvent are water.
Embodiment 12
A kind of Wooden veneer inorganic agent that discolors, it is made up of B liquid;
B liquid is specially the mixed liquor of the material that includes following mass concentration: sodium chlorate 1.8%, and sulfamic acid 0.05%, oxalic acid 0.8%, acetate 0.2%, phosphoric acid 0.5%, solvent are water.
Embodiment 13
A kind of Wooden veneer inorganic agent that discolors, it is made up of B liquid;
B liquid is specially the mixed liquor of the material that includes following mass concentration: sodium chlorate 2.2%, and sulfamic acid 0.1%, oxalic acid 1.0%, acetate 0.3%, phosphoric acid 0.6%, solvent are water.
Embodiment 14
A kind of Wooden veneer inorganic agent that discolors, it is made up of B liquid;
B liquid is specially the mixed liquor of the material that includes following mass concentration: sodium chlorate 2.6%, and sulfamic acid 0.15, oxalic acid 1.2%, acetate 0.4%, phosphoric acid 0.8%, solvent are water.
Embodiment 15
A kind of Wooden veneer inorganic agent that discolors, it is made up of B liquid;
B liquid is specially the mixed liquor of the material that includes following mass concentration: sodium chlorate 3.0%, and sulfamic acid 0.2%, oxalic acid 1.5%, acetate 0.5%, phosphatase 11 .0%, solvent are water.
Embodiment 16
A kind of Wooden veneer inorganic agent that discolors, it is made up of B liquid;
B liquid is specially the mixed liquor of the material that includes following mass concentration: sodium chlorate 1.0%, and sulfamic acid 0.02%, oxalic acid 0.5%, acetate 0.1%, phosphoric acid 0.3%, solvent are water.
In the present embodiment; Also contain nonionic surface active agent in the B liquid, said nonionic surface active agent can be one or more in condensation product, APEO compound monomer or their derivative of AEO, APES, fatty alcohol and oxirane.In the present embodiment, the content of nonionic surface active agent 0.5% with the interior treatment effect that does not all influence A liquid.
Embodiment 17
A kind of Wooden veneer inorganic agent that discolors, it is made up of B liquid;
B liquid is specially the mixed liquor of the material that includes following mass concentration: sodium chlorate 1.8%, and sulfamic acid 0.05%, oxalic acid 0.8%, acetate 0.2%, phosphoric acid 0.5%, solvent are water.
In the present embodiment; Also contain nonionic surface active agent in the B liquid, said nonionic surface active agent can be one or more in condensation product, APEO compound monomer or their derivative of AEO, APES, fatty alcohol and oxirane.In the present embodiment, the content of nonionic surface active agent 0.5% with the interior treatment effect that does not all influence A liquid.
Embodiment 18
A kind of Wooden veneer inorganic agent that discolors, it is made up of B liquid;
B liquid is specially the mixed liquor of the material that includes following mass concentration: sodium chlorate 2.2%, and sulfamic acid 0.1%, oxalic acid 1.0%, acetate 0.3%, phosphoric acid 0.6%, solvent are water.
In the present embodiment; Also contain nonionic surface active agent in the B liquid, said nonionic surface active agent can be one or more in condensation product, APEO compound monomer or their derivative of AEO, APES, fatty alcohol and oxirane.In the present embodiment, the content of nonionic surface active agent 0.5% with the interior treatment effect that does not all influence A liquid.
Embodiment 19
A kind of Wooden veneer inorganic agent that discolors, it is made up of B liquid;
B liquid is specially the mixed liquor of the material that includes following mass concentration: sodium chlorate 2.6%, and sulfamic acid 0.15%, oxalic acid 1.2%, acetate 0.4%, phosphoric acid 0.8%, solvent are water.
In the present embodiment; Also contain nonionic surface active agent in the B liquid, said nonionic surface active agent can be one or more in condensation product, APEO compound monomer or their derivative of AEO, APES, fatty alcohol and oxirane.In the present embodiment, the content of nonionic surface active agent 0.5% with the interior treatment effect that does not all influence A liquid.
In the present embodiment, also contain EDTA in the A liquid, the content of EDTA 0.05% with the interior treatment effect that does not all influence A liquid.
Embodiment 20
A kind of Wooden veneer inorganic agent that discolors, it is made up of B liquid;
B liquid is specially the mixed liquor of the material that includes following mass concentration: sodium chlorate 3.0%, and sulfamic acid 0.2%, oxalic acid 1.5%, acetate 0.5%, phosphatase 11 %, solvent are water.
In the present embodiment; Also contain nonionic surface active agent in the B liquid, said nonionic surface active agent can be one or more in condensation product, APEO compound monomer or their derivative of AEO, APES, fatty alcohol and oxirane.In the present embodiment, the content of nonionic surface active agent 0.5% with the interior treatment effect that does not all influence A liquid.
In the present embodiment, also contain EGTA in the A liquid, the content of EGTA 0.05% with the interior treatment effect that does not all influence A liquid.
Embodiment 21
A kind of Wooden veneer processing method of discoloring may further comprise the steps:
1. preliminary treatment: it is 9 sodium hydroxide solution that the Wooden veneer veneer is placed the pH value, and time 1h makes the preliminary treatment veneer;
2. alkalescence is discolored: A liquid is poured in 55 ℃ the water, transferred pH to 9 with NaOH again, process A liquid and face and use liquid; Place above-mentioned A liquid to face with the liquid processing of discoloring said preliminary treatment veneer, the heating rate with 5 ℃/h during processing slowly is warming up to 80 ℃, and processing time 2h makes the alkalescence processing veneer that discolors;
3. acidity is discolored: B liquid is poured in 45 ℃ the water, transferred pH to 4 with phosphoric acid again, process B liquid and face and use liquid; Said alkalescence discolored handle veneer and face with taking out the liquid from A liquid, water washes and is placed on said B liquid and faces with the processing of discoloring in the liquid, and time 2h makes the acidity processing veneer that discolors;
4. cleaning-drying: said acidity discolored handle veneer and face with putting into clear water after taking out the liquid from B liquid and soak 1h, then drying.
Said A liquid adopts embodiment one described A liquid.
Said B liquid adopts embodiment 11 described B liquid.
Embodiment 22
A kind of Wooden veneer processing method of discoloring may further comprise the steps:
1. preliminary treatment: it is 9 sodium hydroxide solution that the Wooden veneer veneer is placed the pH value, and time 1h makes the preliminary treatment veneer;
2. alkalescence is discolored: A liquid is poured in 56 ℃ the water, transferred pH to 9 with NaOH again, process A liquid and face and use liquid; Place above-mentioned A liquid to face with the liquid processing of discoloring said preliminary treatment veneer, the heating rate with 5 ℃/h during processing slowly is warming up to 81 ℃, and processing time 2h makes the alkalescence processing veneer that discolors;
3. acidity is discolored: B liquid is poured in 45 ℃ the water, transferred pH to 4 with phosphoric acid again, process B liquid and face and use liquid; Said alkalescence discolored handle veneer and face with taking out the liquid from A liquid, water washes and is placed on said B liquid and faces with the processing of discoloring in the liquid, and time 2h makes the acidity processing veneer that discolors;
4. cleaning-drying: said acidity discolored handle veneer and face with putting into clear water after taking out the liquid from B liquid and soak 1h, then drying.
Said A liquid adopts embodiment two described A liquid.
Said B liquid adopts embodiment 12 described B liquid.
Embodiment 23
A kind of Wooden veneer processing method of discoloring may further comprise the steps:
1. preliminary treatment: it is 9 sodium hydroxide solution that the Wooden veneer veneer is placed the pH value, and time 1h makes the preliminary treatment veneer;
2. alkalescence is discolored: A liquid is poured in 57 ℃ the water, transferred pH to 9 with NaOH again, process A liquid and face and use liquid; Place above-mentioned A liquid to face with the liquid processing of discoloring said preliminary treatment veneer, the heating rate with 6 ℃/h during processing slowly is warming up to 82 ℃, and processing time 2h makes the alkalescence processing veneer that discolors;
3. acidity is discolored: B liquid is poured in 47 ℃ the water, transferred pH to 4 with phosphoric acid again, process B liquid and face and use liquid; Said alkalescence discolored handle veneer and face with taking out the liquid from A liquid, water washes and is placed on said B liquid and faces with the processing of discoloring in the liquid, and time 2h makes the acidity processing veneer that discolors;
4. cleaning-drying: said acidity discolored handle veneer and face with putting into clear water after taking out the liquid from B liquid and soak 1h, then drying.
Said A liquid adopts embodiment three described A liquid.
Said B liquid adopts embodiment 13 described B liquid.
Embodiment 24
A kind of Wooden veneer processing method of discoloring may further comprise the steps:
1. preliminary treatment: it is 9 sodium hydroxide solution that the Wooden veneer veneer is placed the pH value, and time 1h makes the preliminary treatment veneer;
2. alkalescence is discolored: A liquid is poured in 58 ℃ the water, transferred pH to 9 with NaOH again, process A liquid and face and use liquid; Place above-mentioned A liquid to face with the liquid processing of discoloring said preliminary treatment veneer, the heating rate with 6 ℃/h during processing slowly is warming up to 83 ℃, and processing time 3h makes the alkalescence processing veneer that discolors;
3. acidity is discolored: B liquid is poured in 48 ℃ the water, transferred pH to 4 with phosphoric acid again, process B liquid and face and use liquid; Said alkalescence discolored handle veneer and face with taking out the liquid from A liquid, water washes and is placed on said B liquid and faces with the processing of discoloring in the liquid, and time 3h makes the acidity processing veneer that discolors;
4. cleaning-drying: said acidity discolored handle veneer and face with putting into clear water after taking out the liquid from B liquid and soak 1h, then drying.
Said A liquid adopts embodiment four described A liquid.
Said B liquid adopts embodiment 14 described B liquid.
Embodiment 25
A kind of Wooden veneer processing method of discoloring may further comprise the steps:
1. preliminary treatment: it is 10 sodium hydroxide solution that the Wooden veneer veneer is placed the pH value, and time 2h makes the preliminary treatment veneer;
2. alkalescence is discolored: A liquid is poured in 59 ℃ the water, transferred pH to 10 with NaOH again, process A liquid and face and use liquid; Place above-mentioned A liquid to face with the liquid processing of discoloring said preliminary treatment veneer, the heating rate with 7 ℃/h during processing slowly is warming up to 84 ℃, and processing time 3h makes the alkalescence processing veneer that discolors;
3. acidity is discolored: B liquid is poured in 49 ℃ the water, transferred pH to 5 with phosphoric acid again, process B liquid and face and use liquid; Said alkalescence discolored handle veneer and face with taking out the liquid from A liquid, water washes and is placed on said B liquid and faces with the processing of discoloring in the liquid, and time 3h makes the acidity processing veneer that discolors;
4. cleaning-drying: said acidity discolored handle veneer and face with putting into clear water after taking out the liquid from B liquid and soak 1h, then drying.
Said A liquid adopts embodiment five described A liquid.
Said B liquid adopts embodiment 15 described B liquid.
Embodiment 26
A kind of Wooden veneer processing method of discoloring may further comprise the steps:
1. preliminary treatment: it is 10 sodium hydroxide solution that the Wooden veneer veneer is placed the pH value, and time 2h makes the preliminary treatment veneer;
2. alkalescence is discolored: A liquid is poured in 60 ℃ the water, transferred pH to 10 with NaOH again, process A liquid and face and use liquid; Place above-mentioned A liquid to face with the liquid processing of discoloring said preliminary treatment veneer, the heating rate with 7 ℃/h during processing slowly is warming up to 85 ℃, and processing time 3h makes the alkalescence processing veneer that discolors;
3. acidity is discolored: B liquid is poured in 50 ℃ the water, transferred pH to 5 with phosphoric acid again, process B liquid and face and use liquid; Said alkalescence discolored handle veneer and face with taking out the liquid from A liquid, water washes and is placed on said B liquid and faces with the processing of discoloring in the liquid, and time 3h makes the acidity processing veneer that discolors;
4. cleaning-drying: said acidity discolored handle veneer and face with putting into clear water after taking out the liquid from B liquid and soak 2h, then drying.
Said A liquid adopts embodiment six described A liquid.
Said B liquid adopts embodiment 16 described B liquid.
Embodiment 27
A kind of Wooden veneer processing method of discoloring may further comprise the steps:
1. preliminary treatment: it is 10 sodium hydroxide solution that the Wooden veneer veneer is placed the pH value, and time 2h makes the preliminary treatment veneer;
2. alkalescence is discolored: A liquid is poured in 61 ℃ the water, transferred pH to 10 with NaOH again, process A liquid and face and use liquid; Place above-mentioned A liquid to face with the liquid processing of discoloring said preliminary treatment veneer, the heating rate with 8 ℃/h during processing slowly is warming up to 86 ℃, and processing time 3h makes the alkalescence processing veneer that discolors;
3. acidity is discolored: B liquid is poured in 51 ℃ the water, transferred pH to 5 with phosphoric acid again, process B liquid and face and use liquid; Said alkalescence discolored handle veneer and face with taking out the liquid from A liquid, water washes and is placed on said B liquid and faces with the processing of discoloring in the liquid, and time 3h makes the acidity processing veneer that discolors;
4. cleaning-drying: said acidity discolored handle veneer and face with putting into clear water after taking out the liquid from B liquid and soak 2h, then drying.
Said A liquid adopts embodiment seven described A liquid.
Said B liquid adopts embodiment 17 described B liquid.
Embodiment 28
A kind of Wooden veneer processing method of discoloring may further comprise the steps:
1. preliminary treatment: it is 11 sodium hydroxide solution that the Wooden veneer veneer is placed the pH value, and time 3h makes the preliminary treatment veneer;
2. alkalescence is discolored: A liquid is poured in 62 ℃ the water, transferred pH to 11 with NaOH again, process A liquid and face and use liquid; Place above-mentioned A liquid to face with the liquid processing of discoloring said preliminary treatment veneer, the heating rate of 8 ℃/h slowly is warming up to 87 ℃ during processing, and processing time 4h makes the alkalescence processing veneer that discolors;
3. acidity is discolored: B liquid is poured in 52 ℃ the water, transferred pH to 6 with phosphoric acid again, process B liquid and face and use liquid; Said alkalescence discolored handle veneer and face with taking out the liquid from A liquid, water washes and is placed on said B liquid and faces with the processing of discoloring in the liquid, and time 4h makes the acidity processing veneer that discolors;
4. cleaning-drying: said acidity discolored handle veneer and face with putting into clear water after taking out the liquid from B liquid and soak 2h, then drying.
Said A liquid adopts embodiment eight described A liquid.
Said B liquid adopts embodiment 18 described B liquid.
Embodiment 29
A kind of Wooden veneer processing method of discoloring may further comprise the steps:
1. preliminary treatment: it is 11 sodium hydroxide solution that the Wooden veneer veneer is placed the pH value, and time 3h makes the preliminary treatment veneer;
2. alkalescence is discolored: A liquid is poured in 63 ℃ the water, transferred pH to 11 with NaOH again, process A liquid and face and use liquid; Place above-mentioned A liquid to face with the liquid processing of discoloring said preliminary treatment veneer, the heating rate with 9 ℃/h during processing slowly is warming up to 88 ℃, and processing time 4h makes the alkalescence processing veneer that discolors;
3. acidity is discolored: B liquid is poured in 53 ℃ the water, transferred pH to 6 with phosphoric acid again, process B liquid and face and use liquid; Said alkalescence discolored handle veneer and face with taking out the liquid from A liquid, water washes and is placed on said B liquid and faces with the processing of discoloring in the liquid, and time 4h makes the acidity processing veneer that discolors;
4. cleaning-drying: said acidity discolored handle veneer and face with putting into clear water after taking out the liquid from B liquid and soak 2h, then drying.
Said A liquid adopts embodiment nine described A liquid.
Said B liquid adopts embodiment 19 described B liquid.
Embodiment 30
A kind of Wooden veneer processing method of discoloring may further comprise the steps:
1. preliminary treatment: it is 11 sodium hydroxide solution that the Wooden veneer veneer is placed the pH value, and time 3h makes the preliminary treatment veneer;
2. alkalescence is discolored: A liquid is poured in 65 ℃ the water, transferred pH to 11 with NaOH again, process A liquid and face and use liquid; Place above-mentioned A liquid to face with the liquid processing of discoloring said preliminary treatment veneer, the heating rate with 10 ℃/h during processing slowly is warming up to 90 ℃, and processing time 4h makes the alkalescence processing veneer that discolors;
3. acidity is discolored: B liquid is poured in 55 ℃ the water, transferred pH to 6 with phosphoric acid again, process B liquid and face and use liquid; Said alkalescence discolored handle veneer and face with taking out the liquid from A liquid, water washes and is placed on said B liquid and faces with the processing of discoloring in the liquid, and time 4h makes the acidity processing veneer that discolors;
4. cleaning-drying: said acidity discolored handle veneer and face with putting into clear water after taking out the liquid from B liquid and soak 2h, then drying.
Said A liquid adopts embodiment ten described A liquid.
Said B liquid adopts embodiment 20 described B liquid.
Embodiment 21 to 30 is carried out the detection of whiteness, and the result is as follows:
Embodiment 21: 70%;
Embodiment 22: 72%;
Embodiment 23: 74%;
Embodiment 24: 77%;
Embodiment 25: 75%;
Embodiment 26: 76%;
Embodiment 27: 78%;
Embodiment 28: 76%;
Embodiment 29: 75%;
Embodiment 30: 75%.
Whiteness according to the invention all refers to original blue stain of Wooden veneer or black spot place or the colour band place that becomes, the whiteness after handling through the method for the invention.Whiteness according to the invention detects with reference to 5.3 consider oneself as and compare and measure method and measure in the measuring method of GB/T 3979-2008 object color, carries out as reference object with standard white plate.
Claims (1)
1. Wooden veneer processing method of discoloring may further comprise the steps:
1. preliminary treatment: it is 9～11 sodium hydroxide solution that the Wooden veneer veneer is placed the pH value, and time 1～3h makes the preliminary treatment veneer;
2. alkalescence is discolored: A liquid is poured in 55～65 ℃ the water, transferred pH to 9～11 with NaOH again, process A liquid and face and use liquid; Place above-mentioned A liquid to face with the liquid processing of discoloring said preliminary treatment veneer, the heating rate with 5～10 ℃/h during processing slowly is warming up to 80～90 ℃, and processing time 2～4h makes the alkalescence processing veneer that discolors;
3. acidity is discolored: B liquid is poured in 45～55 ℃ the water, transferred pH to 4～6 with phosphoric acid again, process B liquid and face and use liquid; Said alkalescence discolored handle veneer and face with taking out the liquid from A liquid, water washes and is placed on said B liquid and faces with the processing of discoloring in the liquid, and time 2～4h makes the acidity processing veneer that discolors;
4. cleaning-drying: said acidity discolored handle veneer and face with putting into clear water after taking out the liquid from B liquid and soak 1～2h, then drying;
Said A liquid is the mixed liquor that includes the material of following mass concentration: hydrogen peroxide solution 4～7%, sodium metasilicate 0.2～0.8%, ethylenediamine tetra-acetic acid 0.05～0.1%; Sodium sulphate 0.05～0.15%, magnesium sulfate 0.05～0.1%, NaOH 0.5～1%; Ammoniacal liquor 0.4～0.8%, solvent are water;
Said B liquid is the mixed liquor that includes the material of following mass concentration: sodium chlorate 1～3%, and sulfamic acid 0.02～0.2%, oxalic acid 0.5～1.5%, acetate 0.1～0.5%, phosphoric acid 0.3～1%, solvent are water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194089.0A CN102699967B (en) | 2012-06-13 | 2012-06-13 | Decoloration treatment method for wooden veneer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194089.0A CN102699967B (en) | 2012-06-13 | 2012-06-13 | Decoloration treatment method for wooden veneer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102699967A true CN102699967A (en) | 2012-10-03 |
| CN102699967B CN102699967B (en) | 2014-06-04 |
Family
ID=46893173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210194089.0A Active CN102699967B (en) | 2012-06-13 | 2012-06-13 | Decoloration treatment method for wooden veneer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102699967B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365014A (en) * | 2015-10-21 | 2016-03-02 | 苏州东邦家具有限公司 | Bleaching treatment process for modified poplar material for furniture manufacturing |
| CN105461873A (en) * | 2015-12-28 | 2016-04-06 | 德华兔宝宝装饰新材股份有限公司 | Recombined decorative material technical wood |
| CN105563570A (en) * | 2015-12-28 | 2016-05-11 | 德华兔宝宝装饰新材股份有限公司 | Preparation method of engineered wood |
| CN105563586A (en) * | 2015-12-28 | 2016-05-11 | 德华兔宝宝装饰新材股份有限公司 | Preparation method of functional type engineered wood |
| CN105710939A (en) * | 2016-02-02 | 2016-06-29 | 德华兔宝宝装饰新材股份有限公司 | Functional reconstituted lumber |
| CN109369933A (en) * | 2018-09-20 | 2019-02-22 | 德华兔宝宝装饰新材股份有限公司 | A kind of high color fidelity composite floor board of high stability and its manufacturing method |
| CN109605516A (en) * | 2018-12-19 | 2019-04-12 | 德华兔宝宝装饰新材股份有限公司 | A kind of manufacturing method of novel floor surface decoration material |
| CN113103391A (en) * | 2021-04-28 | 2021-07-13 | 圣象（江苏）木业研究有限公司 | Wood decolorant and using method thereof |
| CN114454280A (en) * | 2022-02-15 | 2022-05-10 | 浙江农林大学 | Method for adjusting chromatic aberration of wood veneer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2017419A1 (en) * | 1990-05-24 | 1991-11-24 | James J. Miller | Method composition, and product for restroring natural beauty of teak wood |
| CN101219550A (en) * | 2008-02-05 | 2008-07-16 | 中国林业科学研究院木材工业研究所 | Against-sunshine color changing bleaching process method for windmill palm vine material |
| CN101691042A (en) * | 2009-10-12 | 2010-04-07 | 浙江升华云峰新材股份有限公司 | Decoloring agent for decoloring bamboo or wood and method for decoloring bamboo or wood |
-
2012
- 2012-06-13 CN CN201210194089.0A patent/CN102699967B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2017419A1 (en) * | 1990-05-24 | 1991-11-24 | James J. Miller | Method composition, and product for restroring natural beauty of teak wood |
| CN101219550A (en) * | 2008-02-05 | 2008-07-16 | 中国林业科学研究院木材工业研究所 | Against-sunshine color changing bleaching process method for windmill palm vine material |
| CN101691042A (en) * | 2009-10-12 | 2010-04-07 | 浙江升华云峰新材股份有限公司 | Decoloring agent for decoloring bamboo or wood and method for decoloring bamboo or wood |
Non-Patent Citations (1)
| Title |
|---|
| 李坚等: "木材的漂白", 《木材工业》, vol. 8, no. 3, 31 August 1994 (1994-08-31), pages 39 - 41 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365014A (en) * | 2015-10-21 | 2016-03-02 | 苏州东邦家具有限公司 | Bleaching treatment process for modified poplar material for furniture manufacturing |
| CN105461873A (en) * | 2015-12-28 | 2016-04-06 | 德华兔宝宝装饰新材股份有限公司 | Recombined decorative material technical wood |
| CN105563570A (en) * | 2015-12-28 | 2016-05-11 | 德华兔宝宝装饰新材股份有限公司 | Preparation method of engineered wood |
| CN105563586A (en) * | 2015-12-28 | 2016-05-11 | 德华兔宝宝装饰新材股份有限公司 | Preparation method of functional type engineered wood |
| CN105563586B (en) * | 2015-12-28 | 2018-11-06 | 德华兔宝宝装饰新材股份有限公司 | A kind of preparation method of functional form Recombinant Wood |
| CN105710939A (en) * | 2016-02-02 | 2016-06-29 | 德华兔宝宝装饰新材股份有限公司 | Functional reconstituted lumber |
| CN109369933A (en) * | 2018-09-20 | 2019-02-22 | 德华兔宝宝装饰新材股份有限公司 | A kind of high color fidelity composite floor board of high stability and its manufacturing method |
| CN109605516A (en) * | 2018-12-19 | 2019-04-12 | 德华兔宝宝装饰新材股份有限公司 | A kind of manufacturing method of novel floor surface decoration material |
| CN113103391A (en) * | 2021-04-28 | 2021-07-13 | 圣象（江苏）木业研究有限公司 | Wood decolorant and using method thereof |
| CN114454280A (en) * | 2022-02-15 | 2022-05-10 | 浙江农林大学 | Method for adjusting chromatic aberration of wood veneer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102699967B (en) | 2014-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102699967B (en) | Decoloration treatment method for wooden veneer | |
| CN104191480A (en) | Formula for bleaching wood and using method of formula | |
| CN107901165A (en) | A kind of preparation method for the bamboo wood for being used to dye | |
| CN101691042B (en) | Decoloring agent for decoloring bamboo or wood and method for decoloring bamboo or wood | |
| CN107685374A (en) | A kind of processing method for lifting Staining Wood and using quality | |
| CN102991255A (en) | Three-dimensional color glass making process | |
| CN101007414A (en) | Color enhancement technology of natural veneer | |
| CN103924054B (en) | The aviation rust-proofing method of 20A steel pipe | |
| CN103144158A (en) | Decoloring treatment method for Paulownia woods | |
| CN104308929A (en) | Method utilizing oxalic acid to bleach timber | |
| CN105984007A (en) | Antimicrobial wood softener containing nanometer titanium dioxide and preparation method thereof | |
| CN101912187A (en) | Method for bleaching seawater pearl | |
| CN110341013A (en) | A kind of processing method promoting timber condition | |
| CN107471358A (en) | A kind of teak discoloration processing method | |
| CN103882458B (en) | A kind of obstacles in quit of titanium aluminium zirconium chromium nitride hard reaction film | |
| CN109112002B (en) | Cleaning agent for cleaning dirt after glass deplating electroplated layer, cleaning method and electronic product | |
| DE3347151A1 (en) | Mordanting treatment and alkali treatment for wood | |
| CN104942928A (en) | Elm plate material distressing treatment method | |
| CN107740089A (en) | A kind of iron picture surface anticorrosive treatment method | |
| CN102773897B (en) | Blue removal processing agent for wooden single plate and blue removal method of wooden single plate | |
| CN101856829A (en) | Wood modifier and method for processing wood floor color | |
| CN101007413A (en) | Restoration processing method of osmotic color-changing log | |
| CN104308927A (en) | Method for bleaching wood by utilizing sodium chlorite and acetic acid | |
| Shuaishuai et al. | Effects of wet-heat treatment on the performance of waterborne paint film of Fraxinus mandshurica | |
| CN107283578A (en) | A kind of handling process of bamboo chip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |