CN1035665C - Bleaching agent for bamboo and wood - Google Patents
Bleaching agent for bamboo and wood Download PDFInfo
- Publication number
- CN1035665C CN1035665C CN94113140A CN94113140A CN1035665C CN 1035665 C CN1035665 C CN 1035665C CN 94113140 A CN94113140 A CN 94113140A CN 94113140 A CN94113140 A CN 94113140A CN 1035665 C CN1035665 C CN 1035665C
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- CN
- China
- Prior art keywords
- bleaching
- bleaching agent
- bamboo
- wood
- sodium carbonate
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- Expired - Fee Related
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- Chemical And Physical Treatments For Wood And The Like (AREA)
- Detergent Compositions (AREA)
Abstract
The present invention provides a bleaching agent for bleaching bamboo and wood, which is prepared from 15% to 33 wt% of hydrogen peroxide, 0.5% to 2 wt% of sodium carbonate, 0.1% to 1 wt% of ammonia and 65% to 83 wt% of water. The bleaching agent has the advantages of cheap and rich raw material source, no generation of harmful gas, and good bleaching effect, and is suitable for bleaching bamboo and wood used for manufacturing high-grade furniture.
Description
The present invention relates to contain the bleaching agent of peroxide.
The kind of bleaching agent is many, but can effectively bleach seldom timber, bamboo wood.Japan Patent JP57188309 provides a kind of prescription that timber is bleached.It is to adopt chlorous alkali metal salt, perhaps hydrogen peroxide and urea or ethyl carbamide are made main composition, with SODIUM PERCARBONATE or SODIUM PERCARBONATE is bleaching assistant, the preferably chlorous sodium of chlorous alkali metal salt or potassium or lithium salts, and its weight percentage that accounts for bleaching agent is 0.2-18%.The weight percentage of hydrogen peroxide and urea or ethyl carbamide is 2-15% and 1-60%.Can also add compounding ingredient, surfactant and catalyst in addition.This invention prescription proposes at timber, to the quality difference, and the bamboo wood that hardness is big than timber, bleaching effect is also bad, and some reagent of employing is not the most frequently used; The component that adds is also many, and is cumbersome when obviously preparing.
It is to adopt hydrogen peroxide (35%) that the bleaching to timber of domestic current is handled, ammoniacal liquor (25%) and water preparation, and the concentration of ammoniacal liquor is big, and the ammonia excitant is strong in the construction.Also useful sodium chlorite solution (regulating PH=5-6 with acetic acid or oxalic acid) bleaching timber, this kind prescription is only better to timber effects such as Manchurian ash, paulownia.The conventional method of bamboo wood bleaching had bamboo wood is immersed in the 1-2% carbolic acid solution bleached in about two hours.
Order sodium of the present invention provides a kind of sufficient raw cheapness, non-stimulated smell, the bamboo wood bleaching agent that bleaching effect is good.
The bleaching agent that is used for bamboo wood and timber bleaching provided by the invention is by hydrogen peroxide, sodium carbonate, and ammonia and water are formed.
The percentage composition of above-mentioned each ingredients constitute bleaching agent is respectively: 15-33%; 0.5-2%; 0.1-1% and 65-83%.
By above-mentioned prescription as can be seen, the raw material that is adopted all is the most frequently used reagent, and the concentration of ammonia is very low.Though the concentration of sodium carbonate and ammonia is very low, bleaching effect there is bigger influence.The content of ammonia is high more, and bleaching action speed is fast more, but too high ammonia concentration can make bleaching agent that strong ammonia excitant is arranged again, and the concentration of sodium carbonate then influences the thickness of bleached bed.Concentration of sodium carbonate is big more, and bleached bed thickness is big more.
The compound method of the present composition is: make certain density solution with solid sodium carbonate is earlier water-soluble, successively sodium carbonate liquor, the ammoniacal liquor of amount of calculation is joined in a certain amount of hydrogenperoxide steam generator then, pH value is 9-11, promptly.
During use, on bamboo or wood surface, on the whole the reagent brushed should be thin and uniformly, place then with the bleaching agent brushing, allows it dry or dries.
Advantage of the present invention is: the sufficient raw cheapness, do not produce pernicious gas, and bleaching effect is remarkable, face and very stable; The bleaching liquid infiltration is darker, so after the processing of operations such as polishing, can still keep the appearance of bleaching.The present invention has good bleaching effect to wood, bamboo wood, uses the bleaching agent of the present invention's prescription, can obviously improve the quality and the class of bamboo or woodwork.
Embodiment 1
Sodium carbonate liquor 100ml with 5%, the ammoniacal liquor of 5ml25% (proportion is 0.9g/ml) adds in the hydrogenperoxide steam generator of 200ml30% (proportion 1.11g/ml) successively, add 50ml water again, the weight percentage of hydrogen peroxide, sodium carbonate, ammonia and water is respectively 17.84 in the bleaching agent for preparing, 1.34,0.30,80.52.After the bleaching agent of this prescription is coated on bamboo or the art material, about 30 minutes visible bleaching effects.
Embodiment 2
Concentration of raw material is identical with last example, gets sodium carbonate liquor 20ml, ammoniacal liquor 5ml respectively, join successively in the 100ml hydrogenperoxide steam generator, the concentration expressed in percentage by weight of hydrogen peroxide, sodium carbonate, ammonia and water is respectively 21.89,0.66,0.74,76.71 in the bleaching agent for preparing.This prescription bleaching agent can be seen bleaching effect in the time of about 20 minutes.
Embodiment 3
Concentration of raw material is identical with last example, gets sodium carbonate liquor 100ml, ammoniacal liquor 5ml respectively, join successively in the 200ml hydrogenperoxide steam generator, the concentration expressed in percentage by weight of hydrogen peroxide, sodium carbonate, ammoniacal liquor and water is respectively 20.89,1.51 in the bleaching agent for preparing, 0.34,78.86.This prescription bleaching agent can be seen bleaching effect in the time of about 30 minutes.
Claims (2)
1, a kind of bleaching agent that is used for bamboo and wood bleaching be made up of hydrogen peroxide, sodium carbonate, ammonia and water, and percentage concentration is respectively 15-33%, 0.5-2%, 0.1-1%, 65--83%.
2, the bleaching agent that is used for bamboo and wood according to claim 1 is characterized in that the percentage concentration of hydrogen peroxide, sodium carbonate, ammonia and water is respectively 20.09%, 1.51%, 0.34%, 78.06%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94113140A CN1035665C (en) | 1994-07-02 | 1994-11-22 | Bleaching agent for bamboo and wood |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94111060 | 1994-07-02 | ||
| CN94111060.5 | 1994-07-02 | ||
| CN94113140A CN1035665C (en) | 1994-07-02 | 1994-11-22 | Bleaching agent for bamboo and wood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1114605A CN1114605A (en) | 1996-01-10 |
| CN1035665C true CN1035665C (en) | 1997-08-20 |
Family
ID=25743456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94113140A Expired - Fee Related CN1035665C (en) | 1994-07-02 | 1994-11-22 | Bleaching agent for bamboo and wood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1035665C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI990975A0 (en) | 1999-04-29 | 1999-04-29 | Altonic Oy | Whole Wood Bleaching Method |
| CN101219550B (en) * | 2008-02-05 | 2010-07-28 | 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 |
| CN102642226B (en) * | 2012-04-12 | 2014-11-26 | 广东省宜华木业股份有限公司 | Combined bleaching agent for timber |
| 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 |
| CN109176795A (en) * | 2018-09-29 | 2019-01-11 | 湖州市南浔三亚家私有限公司 | The method for bleaching of deal board |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3708889A (en) * | 1970-12-28 | 1973-01-09 | Armstrong Cork Co | Apparatus for bleaching furniture |
| US4144089A (en) * | 1977-08-19 | 1979-03-13 | True Temper Corporation | Process for bleaching wooden articles |
-
1994
- 1994-11-22 CN CN94113140A patent/CN1035665C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3708889A (en) * | 1970-12-28 | 1973-01-09 | Armstrong Cork Co | Apparatus for bleaching furniture |
| US4144089A (en) * | 1977-08-19 | 1979-03-13 | True Temper Corporation | Process for bleaching wooden articles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1114605A (en) | 1996-01-10 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |