Stabilizing Effect of Chromated Salt Treatment on the Green Color of Ma Bamboo (Dendrocalamus latiflorus)

Holzforschung ◽  
2000 ◽  
Vol 54 (3) ◽  
pp. 327-330 ◽  
Author(s):  
Shang-Tzen Chang ◽  
Jyh-Horng Wu
Keyword(s):  
Economic Value ◽  
Color Fastness ◽  
Indoor Exposure ◽  
Green Color ◽  
Dendrocalamus Latiflorus ◽  
Copper Phosphate ◽  
Ma Bamboo ◽  
Color Conversion ◽  
Excellent Color ◽  
Outdoor Weathering

SummaryProcessed bamboo culms capable of maintaining the greenish color in their skin have increased economic value. The use of protectors to preserve the green color and to improve the color fastness of bamboo culms has, therefore, attracted great interest in the industry. In this paper three exposure tests, including accelerated UV lightfastness, outdoor weathering, and indoor exposure, were used to evaluate the color fastness of ma bamboo (Dendrocalamus latiflorusMunro) treated with chromium based reagents. Experimental results revealed that bamboo culms treated with CCP (chromated copper phosphate) or CP (chromated phosphate), both homemade by the authors, exhibited excellent color fastness. Among all inorganic salt-treated bamboo culms the CP-treated samples had the brighter greenish skin and also provided the best green color fastness. It was further noticed that ultraviolet light plays an important role on the color conversion of CrO3-treated bamboo. The green color becomes significantly enhanced with increased exposure time.

Development of Dyeing Process for Sulphatoethylsulphone Reactive-Disperse Dye on Natural and Synthetic Fibers

2020 ◽  
Vol 1005 ◽  
pp. 116-122
Author(s):  
Juthapak Pukngam ◽  
Porntip Tooptompong ◽  
Jantip Setthayanond ◽  
Pimonrat Hansakulwat
Keyword(s):  
Coupling Agent ◽  
Diazonium Salt ◽  
Coupling Reaction ◽  
Disperse Dye ◽  
Color Fastness ◽  
Synthetic Fibers ◽  
Dyeing Process ◽  
Pet Fibers ◽  
Excellent Color ◽  
Natural And Synthetic

Sulphatoethylsulphone reactive-disperse dye was synthesized via diazotization reaction of aminophenyl-4-(β-sulphatoethylsulphone) followed by coupling reaction of the diazonium salt with phenol as a coupling agent. The synthesized dye was well dyeable on both natural and synthetic fibers with providing orange shade on cotton, silk and nylon, while the dyed PLA and PET fibers appeared in yellow shade. The dyeing conditions for cotton and silk could be conducted using 60 g/l Na2SO4 and 20 g/l Na2CO3 at 60°C for 90 minutes whereas dyeing on PLA and PET fibers was optimally done at 110°C for 30 and 45 minutes for PLA and PET, respectively. In case of nylon, it could be dyed at 100°C for 15 minutes. The synthesized reactive-disperse dye could well dye on these 5 fibers with excellent color fastness to washing.

scholarly journals Pengaruh Larutan Fixer terhadap Kualitas Pewarnaan Biopigmen Rumput Laut Eucheuma sp. sebagai Pengganti Pewarna Sintetis pada Tekstil [The Influence of Fixer for The Quality of Coloring Biopigmen Eucheuma sp. as a Subtitute for Synthetic Dyes in Textiles]

2019 ◽  
Vol 7 (2) ◽  
pp. 183 ◽  
Author(s):  
Sri Subekti ◽  
Achmad Amarudin ◽  
Moch Amin Alamsjah
Keyword(s):  
Block Design ◽  
Economic Value ◽  
Raw Material ◽  
Aluminium Chloride ◽  
Synthetic Dyes ◽  
Color Fastness ◽  
Test Results ◽  
Drying Process ◽  
Randomized Block Design

Abstract Seaweed Eucheuma sp. is one of the natural resources of Indonesia. Seaweed many processed in dry form after going through a drying process or processed into food ready for consumption. Seaweed is no longer just eaten or used to direct treatment, but can be processed into jelly, Algin, carrageenan (carrageenan) and furselaran (furcellaran) which is an important raw material in the food industry, pharmaceuticals, cosmetics and so on. This plant has an important economic value in various industries such as pharmaceutical, cosmetics, food, textile and paper industries. This study aims to determine the Fixer solution of Tawas, Poly Aluminium Chloride and Kapur Tohor most effective at biopigmen Eucheuma sp. instead of synthetic dyes in textile and determine the best concentration of the solution Fixer Tawas, Poly Aluminium Chloride and Tohor in deciding the color biopigmen Eucheuma sp. instead of synthetic dyes in textiles. This study uses a randomized block design (RAK). This research was conducted by observing and comparing the effect Fixer solution between Tawas, Poly Aluminium Chloride and Kapur Tohor against staining quality biopigmen seaweed Eucheuma sp. instead of synthetic dyes in textiles. Organoleptic test results showed fixation material Poly Aluminium Chloride able to maintain better color than the color produced by the fixation Tawas and Kapur Tohor. Poly Aluminium Chloride fixation material produces a bright brown color, Tawas brown, reddish brown Tohor. The test results of color fastness to rubbing cloth (dry) indicates that the color fastness of the strongest to the weakest sequentially generated from Tawas fixation materials, lime Tohor, Poly Aluminium Chloride, while the test fastness to washing soap and desecration of white cloth from the strongest to The weakest is Poly Aluminium Chloride, Kapur Tohor and Tawas.

Inkjet printed quantum dot film formed by controlling surface wettability for blue-to-green color conversion

2020 ◽  
Vol 84 ◽  
pp. 105814
Author(s):  
Do Yeob Kim ◽  
Young Joon Han ◽  
Jun Choi ◽  
Chun Sakong ◽  
Byeong-Kwon Ju ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Surface Wettability ◽  
Green Color ◽  
Color Conversion
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