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Color change on dark colors, but is not always the case and is usually dye formula dependent. The effect of a resin finish on color strength or color retention of a woven fabric dyed to a black shade is shown in Figure Figure The effects of resin treatment on the color strength of a black shade after 20 home laundry/tumble dry cycles.
The effect of dye floating color, incomplete soaping after dyeing, unfixed dyes and hydrolyzed dyes remaining on the cloth surface will also affect the light fastness of dyed products, their light fastness is significantly lower than the fixed reactive dyes.
The more thoroughly the soaping is done, the better the light fastness. Generally the tone of azoic dyed ground is not affected by the post-dyeing/finishing operations such as resin finishing (Chattopadhyay and Kaushik, ). The dischargeability of azoic colours is good; hence they are suitable for dyed ground shades intended for white or coloured discharge prints.
Figure Effect of shade depth on light fastness Increase in depth of the shade has positive effect on light fastness. All the tested dyes showed a minimum of grade improvement in the light fastness rating compared to lower depth. Reactive yellowYellow shows to grade, Reactive and shows File Size: KB.
The light fastness after 40 AFU is measured as colour difference (dE) with computer colour matching. The colour difference is measured by keeping dyed as standard and faded samples as batch.
The antioxidants are more effective than the ultraviolet absorbers for C.I. Reactive Yellow 84 dyed fabric.
Colour difference of dyed sample after. The light-fastness of dyeing with direct dyes on cellulosic fibres varies from poor to fairly good, although some copper complex direct dyes have very good light-fastness. Wash-fastness of direct dyes is improved by resin treatment of dyed fabrics or by various after-treatments.
Colour Fastness of Alkanet Dyed Cotton Table-2 contains data related to the wash, crocking and light fastness of cotton dyed with various dyeing formulas of alkanet. Recipes having FeCl3 as pre-mordant, Al2(SO4)3 as post-mordant, K2Cr2O7 as post-mordant and Dicrylan as post-finish yielded good (4 GS) wash fastness.
The aim of this study is to evaluate acid and basic colour fastness to perspiration and colour fastness to washing of reactive dyed cotton products both with the eye and spectrophotometer.
Azmir Latif 28 Chapter – 3; Materials And Methods Dyes used: 1. The color fastness of the fabric refers to the color fastness, which is the dyeing or printing of the fabric in the use or processing process, exposed to external factors, squeeze, friction, washing, rain, exposure, light, sea water immersion, saliva impregnation, water stains, sweat stains under the degree of fade, which is an important indicator of the fabric.
Color fastness to washing is one of the most important and common quality parameter from the point of view of consumers. Besides, colour fastness to wash is very important for Lab-dip. We can define color fastness to wash, a specimen of textile in contact with pieces of specified adjacent fabrics is agitated in a soap or soap- soda solution.
The results show no change in colour depth during after treatment. In all the cases, the use of UV absorbers or antioxidants improves the light fastness of dyed fabrics.
Description effects of resin finishes on the colour and light-fastness of dyed cotton. FB2
The most effective light fastness improvement is found by the application of vitamin C. Keywords: Antioxidant, Cotton fabric, Dyeing, Light fastness, Reactive dyes, UV absorbers. Further, it was concluded that the addition of urea at a concentration of g/ 1 exhibited pronounced effect on light fastness of the dyed fabric with pad-dry cure method.
View Show abstract. The short contact between textiles and sweat may have little effect on their color fastness, but the contact between skin and sweat for a long time will have a great effect on some dyes. Unqualified clothing for color-fastness is easy to transfer dyes from textiles to human skin through sweat, and the molecules and heavy metal ions of dyes can.
(iii) Resin finishing. The 1% dyed shades of Coracryl Brill. Blue CBR and Pink CFG were treated with a resin-finishing formulation. Curing was carried out at °C and °C to prevent decolourisation of the dye. The resin-treated samples were evaluated by the Gray Scale for colour.
SDL light fastness tester containing MBTL fading lamp was used to test the light fastness of the dyed fabric samples.
3 Results and Discussion Effect of Resin Pretreatment Although it is known that crosslinked cotton has poor dyeability, the Finish KVSI-treated fabric was dyed separately with all the three vinylsulphone dyes.
Use of suitable chemical & auxiliary during finishing. Drying and storage during the actual use. REFERENCES. Thiagarajan P and Nalankilli G, “Improving light fastness of reactive dyed cotton fabric with antioxidant and UV absorbers”, Indian Journal of Fibre & Textile Research, Vol, pp This study presents a novel one‐bath/two‐stage exhaust finishing process to improve the oxidative wash fastness of CI Leuco Sulphur Black 1‐dyed cotton fabric.
The effect of the combined. Textile finishing machinery, Red Bridge Mills, Ainsworth, In textile manufacturing, finishing refers to the processes that convert the woven or knitted cloth into a usable material and more specifically to any process performed after dyeing the yarn or fabric to improve the look, performance, or "hand" (feel) of the finish textile or clothing.
The precise meaning depends on context. The effect of cross-linking of chitosan on improving the color light fastness of the treated samples was investigated by measuring the color change (ΔE) before and after the radiation at an interval of 1 h. A piece of untreated SCC-dyed fabric was subjected to the same radiation as control.
Pigment finish. Color applied to leather in solid particles (pigments) that cover the surface. Anti Pilling finish. Pilling is the formation of small balls of extra fibers on the surface of the fabric.
Pilling resistant finish aims to minimise the formation of these balls. Plasticized finish. A very thin layer of polymer added to dyed. Materials. The plain weave fabric used for experimentation was of two types; % bleached cotton and % reactive dyed cotton having weight of g/m 2 without application of any finishing chemical.
The water repellent chemical used was fluorocarbon resin emulsion with C8 chemistry, supplied under the trade name of Bioguard X by Biotex Ltd., Malaysia along with Biocat.
The dye has red colour. The cotton, silk and wool fibre can be dyed with madder at a temperature of °C for time period of 60 min, and subsequently dye solution is cooled. Bright red shade is produced on wool and silk and red violet colour on cotton.
Download effects of resin finishes on the colour and light-fastness of dyed cotton. FB2
This is a mordantable type of acid dye having phenolic (-OH) groups. OTHER FINISHING AGENT; Home > Products > Auxiliaries For Dyeing > FIXING AGENT.
FIXING AGENT. Fixing Agent F (Fixing agent for Cellulose) 2. Fix F (Non-Formaldehyde Fixing Agent) 3. Fixing Agent F (Fixing Agent for Acid Dyes) 4. Fixing Agent F (Fixing Agent for Acid Dyes). The results show an improvement in the surface colour strength compared to that of ordinary RFD cotton fabric when separately dyed with acid dye.
Also the wash fastness levels were very high. Both processes, two stage conventional acid dyeing and resin finishing and single stage simultaneous acid dyeing and resin finishing show comparable CRA.
Read article about Problems in dyeing with direct dyes - Dyeing of cotton with direct dyes represent an extensive range of colorants that are easy to apply and also are very economical. and more. official crocking test scale. Many chemicals are used as finishing products to give to fabrics special properties, hoping as a side effect to improve the colour fastness to crocking of vat dyed fabrics.
But, due to the fact that vat dyes are not chemical-bonded to the yarn, any emulsifier acts like a solvent for. bright colors, poor wet fastness, poor light fastness, excellent fastness to dry cleaning. Fiber reactive dyes *Natural fibers. Bright, pure colors. *piece dyed fabrics.
color removed by printing it with bleach paste. mechanical or permanent chemical finish. *batiste, poly-cotton, broadcloth. stiffening. chemical finish that stiffens. The following data are best obtained from the Colour Index; however, I have drawn data from secondary sources, including assorted manufacturer's websites and Linda Knutson's valuable but out-of-print book Synthetic Dyes for Natural Fibers (LK).
(See Books on Dyeing for more information on this book).
Details effects of resin finishes on the colour and light-fastness of dyed cotton. PDF
For critical applications, it is best to consult your own manufacturer, or consult the Colour. F improves water, washing, perspiration, wet-ironing and sea-water fastness of cotton and rayon fibers dyed or printed with direct or reactive dyes.
F has not detrimental effect on shade and handle. F is non-Formaldehyde type fixing agent, and it has low toxicity. F can be combined with resin using on finishing. In this study, both woven and knit fabrics were taken to evaluate the performance of water repellent finishes on cotton fabrics properties.
Here, % cotton fabrics were treated with different types of fluorocarbon based water repellent chemicals at different formulations. The levels of water repellency of the fabrics were measured in accordance with AATCC hydrostatic head test method.
ISSUES Some possible disadvantages are: Harsher handle (requiring combination with softeners) Decreased light fastness up to two ratings (a problem more for reactive dyed fabrics than for direct dyed ones, the latter often provide greater light fastness) Colour changes (the dyer has to take these into consideration during the dye recipe.final shade and fastness properties of the dyed fabric after finishing are affected by the type of finish.
In this project, the effect of finishes on reactive dyed materials was studied. The finishing has adverse effect on fastness properties and it also reduced or increases the colour strength of dyed material. Effect of finishing on fastness.In order to solve the poor rubbing fastness of dyed cotton fiber in the indigo/silicon non-aqueous dyeing system, the process parameters of the silicon non-aqueous dyeing system were optimized.
Dyed cotton fiber was post-treated to achieve the optimum dyeing conditions for obtaining a better rubbing fastness. Meanwhile, the dyeing performance of cotton fiber in a traditional water bath and.
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