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The invention discloses a blue disperse dye composition with high light fastness The blue disperse dye composition comprises at least two of disperse blue 56 disperse blue 60 and disperse blue 77 The disperse dye composition is particularly suitable for dyeing interior fabrics for automobiles and can meet the dyeing requirement on high light fastness of automotive interiors
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Sep 18 2022Home/Wet Processing/Dye/ Disperse dye Properties Classification Disperse dye Properties Classification Mechanism 2024 September 18 2024 0 1 minute read What is disperse dye Dispense dyes are the only water insoluble dyes that dye polyester and acetate fiber
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Silica SiO 2 is one of the most promising inorganic nanofillers and it has been widely used in the preparation of polymer nanocomposites due to its adjustable morphology large specific surface area and ease of functionalization The surface modification structural characteristics and bonding mechanisms of SiO 2 are crucial in enhancing the overall performance of polymer nanocomposites
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The adsorption behavior of four anionic dyes and one disperse dye in single solution and binary solutions on fly ash was investigated in order to elucidate the effect of competitive adsorption on the kinetics The experimental findings showed that adsorption equilibriums of four anionic dyes were reached within 50 min either in the single solution or in binary mixtures Competitive adsorption
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Their preparation includes a process of particle size reduction and often subsequent drying both in the presence of a dispersing agent The mechanism of dyeing with them would seem to entail their passing from suspension through solution on to the fibre to which they become attached by non‐polar forces
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system for modifying a target structure which mediates or is associated with a biological activity including treatment of conditions disorders or diseases mediated by or associated with a target structure such as a virus cell subcellular structure or extracellular structure The system can be used in methods which can be performed by application of an initiation energy to a subject in
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Compared with no accelerant the final uptake of the disperse dye C I Disperse Blue 367 could increase to 81% with 20% accelerant in the silicone solvent dyeing system and the K/S value of dyed fiber was also higher for no accelerant vs for accelerant The influence of accelerant on the performance of disperse dyeing was also
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Modification based on SiO 2 nanoparticle NP doping has become an important method to further improve the performance of meta aramid insulating paper however NPs easily agglomerate [] which affects their dispersion in organic agglomeration of NPs result in defects inside the nano hybridized composite materials reducing the effects of the nano composition [] and restricting
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controlling magnetic nanoparticles to increase vascular flow us14020173 2024 09 06 us20140135564a1
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PHARMACEUTICAL COMPOSITIONS US12337052 2024 12 17 US20090196890A1 2024 08 06 Alfred Liang
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The factors that cause the instability of the dye solution dispersion are roughly as follows poor dye quality high dye solution temperature too long time too fast pump speed low pH value improper auxiliaries and dirty fabrics 3 Test of dispersion stability With 10 g/L disperse dye solution add acetic acid to adjust the pH value Take
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Part 1 Disperse Dye for Polyester Why called disperse dye Application and mechanism Part 2 Method of polyester dyeing Polyester Dyeing process Auxilaries Of Disperse Dye Carrier The extreme crystalline nature of polyester fibre creates problem in obtaining dark shade by conventional dyeing method even at high temperature The
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Mar 6 2021Dyeing Mechanism of Disperse Dye The dyeing of hydrophobic fibres like polyester fibres with disperse dyes may be considered as a process of dye transfer from liquid solvent water to a solid organic solvent fibre Disperse dyes are added to water with a surface active agent to form an aqueous dispersion
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In order to make the fine particles of dye into a stable water dispersion the water must have a sufficient concentration of boiling dye dispersant The dye particles are surrounded by the dispersant which prevents the dyes from getting close to each other preventing mutual aggregation or agglomeration
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Disperse Red 9 is a red dye derived from anthraquinone Disperse Red 11 also called 62015 and 1 4 diamino 2 methoxy anthraquinone is another anthraquinone dye Disperse Red 60 is also an anthraquinone dye Disperse Yellow 26 is a yellow disperse dye Disperse Yellow 42 is prepared by the reaction of two equivalents of aniline with 4
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The fiber dye and dyebath variables which affect the batch dyeing of polyester with disperse dyes are discussed as are some of the chemical properties of disperse dyes which influence the normal conditions of dye application stripping and reduction clearing
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it is generally believed that the dyeing mechanism of disperse dyes in water is due to the action of the dispersant at the dyeing temperature part of the dye is dissolved in the dyebath to become a dye molecule and then adsorbed on the surface of the fiber in the form of molecules at the same time the amorphous region in the ester fiber is …
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Dispersing agents are much preferred for Vat dyeing Disperse dye and pigment padding The anionic product ionizes water and form an electrical double layer The mutual repulsion between these groups keep dye particle apart and prevent agglomeration Many fabrics during dyeing have high initial dye uptake causing unevenness or shade variation
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The mechanism of dyeing with them would seem to entail their passing from suspension through solution on to the fibre to which they become attached by non‐polar forces The colouring matters used in the preparation of disperse dyes belong mainly to three chemical groupsDisperse dyes have the ability to undergo sublimation that is they can be vaporized without a significant change in the
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Part 1 Disperse Dye for Polyester Why called disperse dye Application and mechanism Part 3 Auxilaries Of Disperse Dye Method of polyester dyeing There are 3 methods of polyester dyeing they are Carrier method Pad thermosol method High temperature high pressure method Polyester Dyeing process Carrier method This process […] Read more
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This study highlighted the influence of change in material to liquor ratio on the colorfastness properties of Synolon Yellow EXW fluorescent disperse dye applied on knitted polyester fabric
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Dyeing Mechanism of Disperse Dye The dyeing of hydrophobic fibers like polyester fibers with disperse dyes may be considered as a process of dye transfer from liquid solvent water to a solid organic solvent fiber Disperse dyes are added to water with a surface active agent to form an aqueous dispersion
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Coordinated disperse dyes with a good combinability for dyeing 2 1/2 acetate Universal Rapid Dyeing dye with excellent combinability and dispersion stability suitable for dyeing large and densely wound packages Fluorescent or highly brilliant dyes to achieve dyeings compliant with EN 20471 or for fashionable sport and leisurewear
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The influence of accelerant on the performance of disperse dyeing was also studied Firstly the solubility of the disperse dye in the silicone solvent can be decreased by the accelerant Moreover the solubility of the disperse dye is inversely proportional to the K/S value and the uptake of the dye
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The higher adsorption amount of HSAL on the dye surface displayed the more viscoelastic adsorption layer than that of sodium lignosulfonate High sulfonic group attached to the long alkyl chain in HSAL molecules can stretch out to the aqueous phase to provide a strong electrostatic repulsion to disperse dye particles and form the nano disperse
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Mechanism of Accelerant on Disperse Dyeing for PET Fiber in the Silicone Solvent Dyeing System Polymers Basel 2024 Mar 19 Compared with no accelerant the final uptake of the disperse dye C I Disperse Blue 367 could increase to 81% with 20% accelerant in the silicone solvent dyeing system and the K/S value of dyed fiber was also
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Fig 5 Some typical azo disperse dye structures Anthraquinone disperse dyes Anthraquinone disperse dyes were among the early acetate dyes and have made an important contribution to the violet and blue shade range They prod uce bright dyeings of excellent light fastness and cause no dye stability problems during dyeing
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