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  • Solvent-free synthesis of magnetic biochar and activated ...

    Magnetic carbonaceous adsorbents were synthesized by ball-milling biochar (BC) or activated carbon (AC) with Fe 3 O 4 nanoparticles, and their capacities to sorb methylene blue (MB) from water were evaluated and compared. Ball milling with magnetite not only improved the surface properties of the carbonaceous adsorbents, especially BC, but also introduced magnetic properties through mechanical ...

  • Cited by: 2
  • One-pot eco-friendly synthesis of edge-carboxylate ...

    These ball mills exhibit the most significantly used in the problem of source materials and can be further classified into planetary mills, tumbler ball mills and vibratory turbines [Zhu et al., 2016]. Moreover, the high degree of defects decreases dye removal performance.

  • Cited by: 1
  • Dyeing of cationic dyeable polyester with cationic dyes

    Cationic dye fixing agents are initially fixed on the acrylic fiber by the ionic bonds with anionic sites and then the reactive dyes which are anionic in nature when applied in this bath combine ...

  • Calcined magnesite as an adsorbent for cationic and ...

    adsorption kinetics process primarily followed the Elovich and Pseudo-second order model, a possible indication that chemisorption was the rate limiting step during the dye uptake process. With the adsorptionedesorption cycle repeated four times, the calcined magnesite regeneration efficiency for DR81 and MO loaded dyes remained very high.

  • US5468257A - Process for dying leather with pigments and ...

    A process for the pigmenting of leather with the pigments from an aqueous liquor has now been found which is superior to the hitherto known dyeing processes. The essential feature of this process is that a cationic polymer containing neutralised tertiary amino groups and/or quaternary ammonium groups is used as pigment binder.

  • Cited by: 1
  • Glossary - Nc State University

    Cationic direct dyes : Dye molecules that are similar to "normal" direct dyes (large ... A kaolin product formed by processing in a ball mill, rubbing the clay between small porcelain spheres, separating ... The process of dye material coming out of solution and remaining on fiber surfaces:

  • Basic Dye/Cationic Dyes Properties of Basic Dyes ...

    Basic dyes are called cationic dyes because the chromophore in basic dye molecules contains a positive charge. The basic dyes react on the basic side of the isoelectric points. Basic dyes are salts, usually chlorides, in which the dyestuff is the basic or positive radical.

  • Stripping of cationic dyes from cationic dyeable polyester

    Cationic Dyes The dyebath was set with X(10 dye solution, 2 mill of methyl salicylate carrier, 10 mill of acetic acid (10%), and 0.5 g/I of sodium acetate. The dyeing was started at room temperature and the tempera-ture was raised to boil in 45 min. Dyeing was conti-nued at

  • Highly effective removal of methylene blue using a chemi ...

    Measurements of the dye adsorption. The adsorption property of the cellulose-based hydrogel for cationic dye removal of MB was studied in this work (Mohammed et al. 2015; Kumari et al. 2016). The dry hydrogel samples were each immersed in 50 mL MB solutions and placed in a constant shaking incubator at 25 ºC at a speed of 100 rpm.

  • Cationic Modification of Cotton Fabrics and Reactive ...

    reactive dyes and a higher exhaustion and fixation degree of reactive dyes was achieved as a result of reaction with new groups. The pretreatment of cotton fabrics with cationic polyvinyl amino-chloride increases dye reactivity and induces the Freundlich type of isotherm to be replaced by Langmuir type after modification [10]. The increased ...

  • Cationic Direct Dyes

    The second critical rule is to avoid direct contact between a cationic direct dye solution and streams of highly anionic additives. For example, a mixture of cationic direct dye and conventional (anionic) direct dye produces an insoluble tar. All direct dyes usually are delivered to a paper mill

  • Adsorption Organic Cationic Dyes of Oxycelluloses and Linters

    Basic dyes are called cationic dyes because the chromophore in basic dye molecules contains a positive charge. They are salts, usually chlorides, in which the dyestuff is the basic or positive radical. Basic dyes are powerful colouring agents. It’s applied to wool, silk, cotton and modified acrylic fibres. Usually acetic acid is

  • Cationic Dye Solutions at Best Price in India

    These are modified basic cationic dyes, suitable for dyeing all types of acrylic fibres. These dyes have good light fastness. CBRCRYL for Cationic Dyeable Polyster (CDP) can be used to dye blends with else toner. It gives excellent color fastness; a two-color effect can also be produced. - Recommended for brilliant shades in

  • Highly effective removal of methylene blue using a chemi ...

    Measurements of the dye adsorption. The adsorption property of the cellulose-based hydrogel for cationic dye removal of MB was studied in this work (Mohammed et al. 2015; Kumari et al. 2016). The dry hydrogel samples were each immersed in 50 mL MB solutions and placed in a constant shaking incubator at 25 ºC at a speed of 100 rpm.

  • Acrylic and Other Cationic Dyeable Fibers

    MAXILON ® dyes satisfy the market requirements of polyacrylonitrile fiber and other cationic dyeable (CD) fibers such as CD-polyester (CD-PES), modacrylic (MOD) and meta-aramid fibers. MAXILON ® dyes have a good exhaustion rate and high build-up and offer bright colors with good lightfastness and wetfastness. Their main application is in exhaust dyeing of yarn and piece material as well as ...

  • An approach to the dyeing of semi dull and cationic dye ...

    Dye-NH-CH 2-SO 3 Na + H 2 O NH 2-Dye + CH 2 O +NaHSO 4 Dyes like; Dispersol Fast Yellow G, Fast Orange G, Violet 2R, Blue GN etc. these dyes do not require carrier for swelling and keeps dyeing at boiling temperature. Fabric preparation The process has been done in two types of polyester fabric, i.e. SD polyester and CD polyester.

  • Stripping of cationic dyes from cationic dyeable polyester

    Cationic Dyes The dyebath was set with X(10 dye solution, 2 mill of methyl salicylate carrier, 10 mill of acetic acid (10%), and 0.5 g/I of sodium acetate. The dyeing was started at room temperature and the tempera-ture was raised to boil in 45 min. Dyeing was conti-nued at

  • Cationic Modification of Cotton Fabrics and Reactive ...

    reactive dyes and a higher exhaustion and fixation degree of reactive dyes was achieved as a result of reaction with new groups. The pretreatment of cotton fabrics with cationic polyvinyl amino-chloride increases dye reactivity and induces the Freundlich type of isotherm to be replaced by Langmuir type after modification [10]. The increased ...

  • CN104193835B - A kind of cationic silane starch ...

    The present invention provides a kind of cationic silane starch, and it substitutes etherifying agent is cationic silane, and the structural formula of cationic silane is single cationic silane or dication silane, and product cleannes are high;The present invention also provides for the preparation method of a kind of cationic silane starch, is sufficiently mixed by spraying with starch by ...

  • Synthesis of iron-doped TiO nanoparticles by ball-milling ...

    dyes (especially cationic dyes) from textile effluents is the destructive oxidation treatment performed via a photo-degradation process induced by dissimilar semiconductor materials. Actually, in recent years there has been a ... Planetary Ball Mill PM 400/2 (RETSCH, Germany) in the

  • Decolorization of anionic and cationic dyes by electro ...

    The model dyes chosen for the present investigation are Eosin-Y (anionic dye, chemical formula C20H6Br4Na2O5, MW=691.85 g/mL) and Methylene blue (cationic dye, chemical formula C16H18ClN3S, MW=319.87 g/mL) which are most widely used dyes in textile industries. The maximum absorbance wavelength of eosin-Y and methylene blue were found

  • Enhanced removal of cationic dye by eco-friendly activated ...

    Pyrolysis process lasted 2 h at 500 °C in the partial absence of oxygen. The produced biochar was then ground by porcelain mortar and sieved at 2.00 mm. Preparation of milled Biochar (m-Biochar) Milled Biochar (m-Biochar) was prepared by charging of 7.0 g of pre-source Biochar (p-Biochar) in a laboratory scaled ball mill.

  • Removal of Cationic Dye from Textile Industry Wastewater ...

    dye process. Due to treatment for these colourful wastewaters it can be applied many different methods such as adsorption, chemical oxidation, coagulation, membrane filtration. In this study, decolorization of cationic dye (Basic Blue 41) from local textile mill w as

  • Cationic Pretreatments Of Cotton Textile World

    Oct 01, 2000  usually not necessary, and direct dyes do not require an aftertreatment to achieve acceptable washfastness. A typical procedure for dyeing cationic pretreated cotton with anionic dyes is outlined in Table II. SummaryPolymeric cationic pretreatments for cotton offer several advantages for the garment wet-process industry.

  • Synthesis of iron-doped TiO nanoparticles by ball-milling ...

    dyes (especially cationic dyes) from textile effluents is the destructive oxidation treatment performed via a photo-degradation process induced by dissimilar semiconductor materials. Actually, in recent years there has been a ... Planetary Ball Mill PM 400/2 (RETSCH, Germany) in the

  • (PDF) Removal of Cationic Dye from Textile Industry ...

    Abstract: It was used significant amount of water in various processes such as dyeing, desizing and bleaching in textile industry. Thus companies have to be faced wastewater problems. Especially in dyeing process different type of colourants -for

  • Enhanced removal of cationic dye by eco-friendly activated ...

    Pyrolysis process lasted 2 h at 500 °C in the partial absence of oxygen. The produced biochar was then ground by porcelain mortar and sieved at 2.00 mm. Preparation of milled Biochar (m-Biochar) Milled Biochar (m-Biochar) was prepared by charging of 7.0 g of pre-source Biochar (p-Biochar) in a laboratory scaled ball mill.

  • An approach to the dyeing of semi dull and cationic dye ...

    Dye-NH-CH 2-SO 3 Na + H 2 O NH 2-Dye + CH 2 O +NaHSO 4 Dyes like; Dispersol Fast Yellow G, Fast Orange G, Violet 2R, Blue GN etc. these dyes do not require carrier for swelling and keeps dyeing at boiling temperature. Fabric preparation The process has been done in two types of polyester fabric, i.e. SD polyester and CD polyester.

  • Acrylic and Other Cationic Dyeable Fibers

    MAXILON ® dyes satisfy the market requirements of polyacrylonitrile fiber and other cationic dyeable (CD) fibers such as CD-polyester (CD-PES), modacrylic (MOD) and meta-aramid fibers. MAXILON ® dyes have a good exhaustion rate and high build-up and offer bright colors with good lightfastness and wetfastness. Their main application is in exhaust dyeing of yarn and piece material as well as ...

  • Removal of Cationic Dye from Textile Industry Wastewater ...

    dye process. Due to treatment for these colourful wastewaters it can be applied many different methods such as adsorption, chemical oxidation, coagulation, membrane filtration. In this study, decolorization of cationic dye (Basic Blue 41) from local textile mill w as

  • Cationic Pretreatments Of Cotton Textile World

    Oct 01, 2000  usually not necessary, and direct dyes do not require an aftertreatment to achieve acceptable washfastness. A typical procedure for dyeing cationic pretreated cotton with anionic dyes is outlined in Table II. SummaryPolymeric cationic pretreatments for cotton offer several advantages for the garment wet-process industry.

  • Cationic dyes - CHT Group - special chemicals

    CHT - chemical auxiliaries and special chemicals for textile production and finishing, textile dyes, construction, silicones, paper and pulp, textile care and plastics recycling.

  • Cationic Dye, Basic dyes Cationic Dye

    Cationic dyes are one type of textile dyes, also known as basic dyes and salt-based dyes. It is dissolved in water and is cationic. The cationic dye is soluble in water and ionized in aqueous solution to form a dye with positively charged colored ions. The cation of the dye can be combined with the acidic group of the third monomer in the fabric to dye the fiber.

  • Pre-treatment of toxic element and cationic dye onto ...

    MB cationic dye, were buy from Sigma-Aldrich Co. Also, double distilled water was also used in the experiment. Also, some of analytical techniques that have been used to study the biosorption process include atomic absorption spectrophotometry (AAS), UV

  • Cationic Dyes - Alfa Chemistry

    Cationic dyes are dyes that can be dissociated into positively charged ions in aqueous solution. They can interact with the negative groups on the fiber molecules to form salts, which can be further firmly attached to the fibers, thereby staining the fibers. Cationic dyes have been successfully developed based on alkaline dyes.

  • The Application of Basic Dye Cations to Anionic Fibers ...

    mordant dyeing process works, it is only necessary to appreciate that basic dyes are salts (like acid dyes) and dissociate in water to give anions and cations. In basic dyes (unlike acid dyes) the colored part of the salt is the cation (+) which is why they are frequently referred to as cationic dyes. The associated anion (-) can be some-

  • hemar crusher machin - La Taperia

    cationic dyes process in ball mills Grinding Media Grinding Balls Union Process Inc As the developer and manufacturer of industry-leading particle size reduction equipment including Attritors (internally agitated ball mills) and DMQX horizontal media mills Union Process is uniquely positioned to help you identify and source the correct ...

  • Basic Dyes - YouTube

    Mar 02, 2019  Basic dyes (These dyes are also known as cationic dyes): This a class of synthetic dyes, that act as bases and when made soluble in water, they form a colored cationic

  • Evaluation Of Application Properties Of Organic Pigments ...

    Direct methods include fineness method, color growth curve method, Cour-Conte electronic method, centrifugal turntable particle measurement method and light sedimentation method, etc., and pigment samples can be subjected to different grinding methods (ball mill, sand mill, three rolls).

  • Our Infrastructure - Yogesh Dyes

    Our corporate office is situated in Mumbai (formerly Bombay), the Economic Capital of India and our state of the art production facility is located at Tarapur which is about 80 kms from Mumbai.

  • Pigment Production - NETZSCH Grinding Dispersing

    The compact, universally applicable laboratory circulation mills of the MiniSeries impress with their easy handling when processing very small quantities from 0.25 to 0.5 l up to particle sizes in the nanometer range. It is possible to conduct many tests with low loss of product and significant results within a

  • (PDF) Comparative study of calcium alginate, ball-milled ...

    degradation of cationic organic dyes. ... A ball milling process reduced the jatropha seed biochar size and converted it into micro-nano carbon biofiller. ... were produced through the grinding of ...

  • Enhanced removal of basic violet 10 by heterogeneous sono ...

    Nov 27, 2017  The removal of basic violet 10 (BV10), which is known as a cationic dye, from aqueous solution was studied by employing a heterogeneous sono-Fenton process over the nano-sized magnetite (Fe3O4) which had been prepared by the milling of magnetite mineral using a high-energy planetary ball milling process.

  • Calcined magnesite as an adsorbent for cationic and ...

    The adsorption kinetics process primarily followed the Elovich and Pseudo-second order model, a possible indication that chemisorption was the rate limiting step during the dye uptake process. With the adsorption–desorption cycle repeated four times, the calcined magnesite regeneration efficiency for DR81 and MO loaded dyes remained very high.

  • Textile rotary screen printing Pigment Dispersion ...

    Textile rotary screen printing Pigment Dispersion CTH1130 Br. Red - CAISON Products Made In China, China Manufacturer. CD-1120 Bright Red Pigment Dispersion for Textile Dyeing CAISON CD series environment friendly textile one-bath dyeing water-based pigment dispersion is new product developed by us, professionally used for different components and forms fabric.

  • Folien für Vortrag Englisch - Home - Alafave

    Ball - Mill Cyclone Sieve Final Products Dry Milling Process Production of Pigments. 16 Ingot Oven Atomizing Sieve Filter cakes Wet Milling Process Filter Press Mineral Spirit ... Basic (cationic) Mordant (anionic) Disperse (nonionic) Sulfur Naphthol. 15 Oil / Solvent Soluble Dyes

  • Manufacturing of C-P-C Blue Crude, Pigment Alpha Blue 15:0

    Stage 2 (Pigmentation Process) : The CPC cake is charged in another vessel and washed with water and stirred with fresh water. The aqueous slurry is neutralized to pH 8 to 8.5 using ammonia solution and caustic lye and stirred with emulsifier at 60 - 90 deg C for 2 Hrs.

  • mixing milling - intermediates colorants david process

    david process inc is a midwest regional manufactures representative of industrial mixing and milling equipment, color dispersion equipment, intermediates, colorants and services.

  • US3549311A - Nitrodiphenylamine disperse dyes - Google Patents

    US3549311A US3549311DA US3549311A US 3549311 A US3549311 A US 3549311A US 3549311D A US3549311D A US 3549311DA US 3549311 A US3549311 A US 3549311A Authority US United States Prior art keywords dyeing example dyestuffs fibers disperse dyes Prior art date 1968-07-10 Legal status (The legal status is an assumption and is not a legal conclusion.

  • Research Article ISSN : 0975-7384 CODEN(USA) : JCPRC5

    The efficient removal of various dyes from the waste waters of textile industries is an important and challenging task. In the present study, it is attempted to validate the applicability of a new nanocomposite adsorbent for the removal of a cationic dye Rhodamine B from the effluent wastewaters. Magnesium oxide nano particles are

  • Color fastness properties of different reactive dyes

    Jul 17, 2017  Reactive dyes have a low utilization degree compared to other types of dyestuff, since the functional group also bonds to water, creating hydrolysis. 2.3: Properties of reactive dye: 1) Reactive dyes are cationic dyes, which are used for dyeing cellulose, protein and polyamide fibres. 2) Reactive dyes are found in power, liquid and print paste ...

  • Forged Steel Grinding Balls - 911Metallurgist

    forged steel grinding ball has high hardness: surface hardness to 58-65HRC, volume hardness of 57-64HRC; impact toughness high: impact toughness more than 12J / cm2. broken rate is low: the actual broken rate is not higher than 0.5%. loss of forged grinding ball round rate is low. dropping test in 8m high tester for more than 20,000 times.