CN107471358A - A kind of teak discoloration processing method - Google Patents

A kind of teak discoloration processing method Download PDF

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Publication number
CN107471358A
CN107471358A CN201710849100.5A CN201710849100A CN107471358A CN 107471358 A CN107471358 A CN 107471358A CN 201710849100 A CN201710849100 A CN 201710849100A CN 107471358 A CN107471358 A CN 107471358A
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CN
China
Prior art keywords
teak
processing method
hexadecanol
discoloration
group containing
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CN201710849100.5A
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Chinese (zh)
Inventor
徐治合
徐蓝天
徐艳云
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Anhui Three Arts & Crafts Co Ltd
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Anhui Three Arts & Crafts Co Ltd
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Priority to CN201710849100.5A priority Critical patent/CN107471358A/en
Publication of CN107471358A publication Critical patent/CN107471358A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • B27K3/34—Organic impregnating agents
    • B27K3/36—Aliphatic compounds
    • 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
    • B27K3/34—Organic impregnating agents
    • B27K3/50—Mixtures of different organic impregnating agents
    • 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
    • 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
    • B27K5/0015—Treating of wood not provided for in groups B27K1/00, B27K3/00 by electric means
    • B27K5/002—Electric discharges, plasma
    • 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
    • B27K5/02—Staining or dyeing wood; Bleaching 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
    • 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
    • B27K2240/00—Purpose of the treatment
    • B27K2240/15—Decontamination of previously treated wood

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

The invention discloses a kind of teak discoloration processing method, it is related to timber treatment technology field, comprises the following steps：（1）Surface is modified；（2）Low-temperature plasma processing；（3）Photo-irradiation treatment；The present invention carries out immersion treatment by using isocyanato group containing modified solution to teak, it can effectively cause the auxochromes such as charcoal base, vinyl, methoxyl group and the carboxyl in the chromophoric group of teak surface that physical property reaction occurs, the precipitation pigment of wood surface can be dissolved to a certain extent, meanwhile the active group in isocyanato group containing modified solution can effectively eliminate black line and spot and desalinate original color of timber.

Description

A kind of teak discoloration processing method
Technical field
The invention belongs to timber treatment technology field, and in particular to a kind of teak discoloration processing method.
Background technology
Teak, also known as Arnotto, purple teak, blood tree etc., it is that a kind of fallen leaves or half fallen leaves megaphanerophyte, the height of tree reach 40-50 rice, Diameter of a cross-section of a tree trunk 1.3 meters above the ground 2-2.5 rice, do logical straight.Bark brown or grey, the prismatic of branch four, by stellate hair.Leaf is to life, greatly, elliptical or oval shape, The back side is close by lark stellate hair.Panicle is large, fall flowering, floral white, fragrance.Teak is tropical tree species, it is desirable to compared with High temperature, vertical distribution are more common in low mountains and hills and Plain below height above sea level 700-800 rice, be manufacture top-grade furniture floor, The material of interior/exterior decoration.Existing teak discoloration method generally uses sunlight, but this method easily by place and The limitation of weather, and by long the time required to sunlight, and Changes in weather situation is limited by, its wood deformation after handling It is obvious, secondary operation need to be carried out, whole processing procedure is less efficient.
The content of the invention
The purpose of the present invention is to be directed to the problem of existing, there is provided a kind of teak discoloration processing method.
The present invention is achieved by the following technical solutions：
A kind of teak discoloration processing method, comprises the following steps：
（1）Surface is modified：Under tin dilaurate normal-butyl tin catalyst, in 52 DEG C, be slowly stirred down, in 4,4 ' diphenylmethyls The xylene solution of hexadecanol is added dropwise in alkane diisocyanate, wherein 4,4 ' methyl diphenylene diisocyanates and hexadecanol Mol ratio is 1:1, the mass ratio of hexadecanol and dimethylbenzene is 10.5 in the xylene solution of hexadecanol:100, then constant temperature stirring 2 hours, then the sulfonyloxy ketone of xylene solution quality 0.12% is added, stir, that is, it is molten to obtain isocyanato group containing modification Liquid, teak is added in isocyanato group containing modified solution and soaks 40min, is then taken out；
（2）Low-temperature plasma processing：By step（1）The teak of middle processing carries out the processing of glow discharge mode low-temperature plasma, place Process gases is argon gas, and treatment process condition is：Pressure 98-102Pa, power 350-500W, time 30-40min, then take out, Teak surface is cleaned, dried；
（3）Photo-irradiation treatment：By step（2）Teak after processing carries out artificial lighting 1-1.5 hours, you can.
Further, the step（1）The mass ratio of middle tin dilaurate normal-butyl tin catalyst and hexadecanol is 0.1:2.
Further, the step（1）In to be slowly stirred mixing speed be 60-80r/min.
Further, the step（1）Middle teak, which is added in isocyanato group containing modified solution, to be soaked, and soaking temperature is 35-40℃。
Further, the step（2）It is that teak surface is carried out clearly using absolute ethyl alcohol that middle teak surface, which carries out cleaning, Wash, scavenging period 5-10min.
Further, the step（2）Middle drying is vacuum drying, and drying temperature is 100 DEG C.
Further, the step（3）Middle artificial lighting intensity is 1000-1200lux.
The present invention has advantages below compared with prior art：The present invention is by using isocyanato group containing modified solution to teak Immersion treatment is carried out, effectively charcoal base, vinyl, methoxyl group and carboxyl in the chromophoric group of teak surface etc. can be helped Physical property reaction occurs for color base, can dissolve the precipitation pigment of wood surface to a certain extent, meanwhile, isocyanato group containing modified solution In active group can effectively eliminate black line and spot and desalinate original color of timber, effectively raise teak discoloration Speed, by the effect of active group in isocyanato group containing modified solution, can speed up tannin in timber, pigment, alkaloid, The oxidative dimerization of carbohydrate, phenols and other organic matters, then by carrying out Low Temperature Plasma Treating, Neng Goujia to teak The Quick Oxidation of aldehydes matter in fast timber, phenolic compound have benzene ring structure, the Quick Oxidation of phenolic compound, are so that One big power-assisted of teak discoloration, after phenolic compound oxidation, generate colored condensation product not soluble in water；Finally artificial lighting is used again Handled, further improve the speed and effect of teak discoloration, be allowed to color and reach simple and elegant unified yellow-white, greatly contracting The short time to teak processing, teak discoloration uniform in effect.
Embodiment
Embodiment 1
A kind of teak discoloration processing method, comprises the following steps：
（1）Surface is modified：Under tin dilaurate normal-butyl tin catalyst, in 52 DEG C, be slowly stirred down, in 4,4 ' diphenylmethyls The xylene solution of hexadecanol is added dropwise in alkane diisocyanate, wherein 4,4 ' methyl diphenylene diisocyanates and hexadecanol Mol ratio is 1:1, the mass ratio of hexadecanol and dimethylbenzene is 10.5 in the xylene solution of hexadecanol:100, then constant temperature stirring 2 hours, then the sulfonyloxy ketone of xylene solution quality 0.12% is added, stir, that is, it is molten to obtain isocyanato group containing modification Liquid, teak is added in isocyanato group containing modified solution and soaks 40min, is then taken out；
（2）Low-temperature plasma processing：By step（1）The teak of middle processing carries out the processing of glow discharge mode low-temperature plasma, place Process gases is argon gas, and treatment process condition is：Pressure 98Pa, power 350W, time 30min, then take out, teak surface is entered Row cleaning, drying；
（3）Photo-irradiation treatment：By step（2）Teak after processing carries out artificial lighting 1 hour, you can.
Further, the step（1）The mass ratio of middle tin dilaurate normal-butyl tin catalyst and hexadecanol is 0.1:2.
Further, the step（1）In to be slowly stirred mixing speed be 60-80r/min.
Further, the step（1）Middle teak, which is added in isocyanato group containing modified solution, to be soaked, and soaking temperature is 35-40℃。
Further, the step（2）It is that teak surface is carried out clearly using absolute ethyl alcohol that middle teak surface, which carries out cleaning, Wash, scavenging period 5-10min.
Further, the step（2）Middle drying is vacuum drying, and drying temperature is 100 DEG C.
Further, the step（3）Middle artificial lighting intensity is 1000lux.
Embodiment 2
A kind of teak discoloration processing method, comprises the following steps：
（1）Surface is modified：Under tin dilaurate normal-butyl tin catalyst, in 52 DEG C, be slowly stirred down, in 4,4 ' diphenylmethyls The xylene solution of hexadecanol is added dropwise in alkane diisocyanate, wherein 4,4 ' methyl diphenylene diisocyanates and hexadecanol Mol ratio is 1:1, the mass ratio of hexadecanol and dimethylbenzene is 10.5 in the xylene solution of hexadecanol:100, then constant temperature stirring 2 hours, then the sulfonyloxy ketone of xylene solution quality 0.12% is added, stir, that is, it is molten to obtain isocyanato group containing modification Liquid, teak is added in isocyanato group containing modified solution and soaks 40min, is then taken out；
（2）Low-temperature plasma processing：By step（1）The teak of middle processing carries out the processing of glow discharge mode low-temperature plasma, place Process gases is argon gas, and treatment process condition is：Pressure 102Pa, power 500W, time 40min, then take out, to teak surface Cleaned, dried；
（3）Photo-irradiation treatment：By step（2）Teak after processing carries out artificial lighting 1.5 hours, you can.
Further, the step（1）The mass ratio of middle tin dilaurate normal-butyl tin catalyst and hexadecanol is 0.1:2.
Further, the step（1）In to be slowly stirred mixing speed be 80r/min.
Further, the step（1）Middle teak, which is added in isocyanato group containing modified solution, to be soaked, and soaking temperature is 35-40℃。
Further, the step（2）It is that teak surface is carried out clearly using absolute ethyl alcohol that middle teak surface, which carries out cleaning, Wash, scavenging period 10min.
Further, the step（2）Middle drying is vacuum drying, and drying temperature is 100 DEG C.
Further, the step（3）Middle artificial lighting intensity is 1200lux.
Embodiment 3
A kind of teak discoloration processing method, comprises the following steps：
（1）Surface is modified：Under tin dilaurate normal-butyl tin catalyst, in 52 DEG C, be slowly stirred down, in 4,4 ' diphenylmethyls The xylene solution of hexadecanol is added dropwise in alkane diisocyanate, wherein 4,4 ' methyl diphenylene diisocyanates and hexadecanol Mol ratio is 1:1, the mass ratio of hexadecanol and dimethylbenzene is 10.5 in the xylene solution of hexadecanol:100, then constant temperature stirring 2 hours, then the sulfonyloxy ketone of xylene solution quality 0.12% is added, stir, that is, it is molten to obtain isocyanato group containing modification Liquid, teak is added in isocyanato group containing modified solution and soaks 40min, is then taken out；
（2）Low-temperature plasma processing：By step（1）The teak of middle processing carries out the processing of glow discharge mode low-temperature plasma, place Process gases is argon gas, and treatment process condition is：Pressure 100Pa, power 400W, time 35min, then take out, to teak surface Cleaned, dried；
（3）Photo-irradiation treatment：By step（2）Teak after processing carries out artificial lighting 1.2 hours, you can.
Further, the step（1）The mass ratio of middle tin dilaurate normal-butyl tin catalyst and hexadecanol is 0.1:2.
Further, the step（1）In to be slowly stirred mixing speed be 70r/min.
Further, the step（1）Middle teak, which is added in isocyanato group containing modified solution, to be soaked, and soaking temperature is 35-40℃。
Further, the step（2）It is that teak surface is carried out clearly using absolute ethyl alcohol that middle teak surface, which carries out cleaning, Wash, scavenging period 8min.
Further, the step（2）Middle drying is vacuum drying, and drying temperature is 100 DEG C.
Further, the step（3）Middle artificial lighting intensity is 1100lux.
Comparative example 1：Differed only in embodiment 1 without step（1）Processing.
Comparative example 2：Differed only in embodiment 1 without step（2）Processing.
Comparative example 3：Differed only in embodiment 1 without step（3）Processing.
Experiment：
Embodiment is respectively adopted with comparative example method to being handled with batch teak, contrasts the discoloration percentage of teak before and after the processing Rate；
Table 1
Change colour percentage %
Embodiment 1 98.63
Embodiment 2 99.05
Embodiment 3 99.86
Comparative example 1 40.64
Comparative example 2 72.68
Comparative example 3 91.37
As can be seen from Table 1, the teak discoloration effect of the inventive method processing is more thorough.

Claims (7)

1. a kind of teak discoloration processing method, it is characterised in that comprise the following steps：
（1）Surface is modified：Under tin dilaurate normal-butyl tin catalyst, in 52 DEG C, be slowly stirred down, in 4,4 ' diphenylmethyls The xylene solution of hexadecanol is added dropwise in alkane diisocyanate, wherein 4,4 ' methyl diphenylene diisocyanates and hexadecanol Mol ratio is 1:1, the mass ratio of hexadecanol and dimethylbenzene is 10.5 in the xylene solution of hexadecanol:100, then constant temperature stirring 2 hours, then the sulfonyloxy ketone of xylene solution quality 0.12% is added, stir, that is, it is molten to obtain isocyanato group containing modification Liquid, teak is added in isocyanato group containing modified solution and soaks 40min, is then taken out；
（2）Low-temperature plasma processing：By step（1）The teak of middle processing carries out the processing of glow discharge mode low-temperature plasma, place Process gases is argon gas, and treatment process condition is：Pressure 98-102Pa, power 350-500W, time 30-40min, then take out, Teak surface is cleaned, dried；
（3）Photo-irradiation treatment：By step（2）Teak after processing carries out artificial lighting 1-1.5 hours, you can.
A kind of 2. teak discoloration processing method as claimed in claim 1, it is characterised in that the step（1）Middle tin dilaurate The mass ratio of normal-butyl tin catalyst and hexadecanol is 0.1:2.
A kind of 3. teak discoloration processing method as claimed in claim 1, it is characterised in that the step（1）In be slowly stirred Mixing speed is 60-80r/min.
A kind of 4. teak discoloration processing method as claimed in claim 1, it is characterised in that the step（1）Middle teak addition Soaked into isocyanato group containing modified solution, soaking temperature is 35-40 DEG C.
A kind of 5. teak discoloration processing method as claimed in claim 1, it is characterised in that the step（2）Middle teak surface Cleaning is carried out to be cleaned using absolute ethyl alcohol to teak surface, scavenging period 5-10min.
A kind of 6. teak discoloration processing method as claimed in claim 1, it is characterised in that the step（2）Middle drying is true Sky is dried, and drying temperature is 100 DEG C.
A kind of 7. teak discoloration processing method as claimed in claim 1, it is characterised in that the step（3）Middle artificial lighting Intensity is 1000-1200lux.
CN201710849100.5A 2017-09-20 2017-09-20 A kind of teak discoloration processing method Pending CN107471358A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110228119A (en) * 2019-07-12 2019-09-13 北美枫情木家居（江苏）有限公司 A kind of coffee color archaized wood floor production method
CN110539375A (en) * 2019-08-14 2019-12-06 浙江菱格木业有限公司 Teak color change treatment method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101745954A (en) * 2008-12-04 2010-06-23 关鑫 Coloring technology of environment-friendly veneer
CN102350717A (en) * 2011-10-08 2012-02-15 南京林业大学 Wooden sheet dyeing method for performing pretreatment by using cold plasma
CN102642225A (en) * 2012-04-12 2012-08-22 广东省宜华木业股份有限公司 Processing method for teak discoloration
CN103465322A (en) * 2013-09-29 2013-12-25 福建农林大学 Method for manufacturing reorganized bamboos by adopting plasma technology
CN104926693A (en) * 2015-05-08 2015-09-23 江南大学 Isocyanate-group-contained modifier, and preparation and application thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101745954A (en) * 2008-12-04 2010-06-23 关鑫 Coloring technology of environment-friendly veneer
CN102350717A (en) * 2011-10-08 2012-02-15 南京林业大学 Wooden sheet dyeing method for performing pretreatment by using cold plasma
CN102642225A (en) * 2012-04-12 2012-08-22 广东省宜华木业股份有限公司 Processing method for teak discoloration
CN103465322A (en) * 2013-09-29 2013-12-25 福建农林大学 Method for manufacturing reorganized bamboos by adopting plasma technology
CN104926693A (en) * 2015-05-08 2015-09-23 江南大学 Isocyanate-group-contained modifier, and preparation and application thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110228119A (en) * 2019-07-12 2019-09-13 北美枫情木家居（江苏）有限公司 A kind of coffee color archaized wood floor production method
CN110539375A (en) * 2019-08-14 2019-12-06 浙江菱格木业有限公司 Teak color change treatment method

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