The document provides information about reactive dyes, including:
- Reactive dyes form covalent bonds with fiber polymers through reactive groups, giving excellent wash and light fastness.
- Important reactive groups include triazine, vinyl sulfone, and halogen groups.
- Reactive dyes were invented in 1956 and became popular for their bright colors, low temperature dyeing, and simple process.
- Common application methods are pad-batch and pad-dry processes at low temperatures. Proper pH, electrolyte, alkali, and time are required for effective dye fixation to the fiber.
Classification of dyes; Dyeing of cotton, wool, silk, polyester, nylon and acrylic with appropriate dye classes; Dyeing of polyester/cotton and polyester/wool blends; Dyeing machines; Dyeing of cotton knitted fabrics and machines used; Dye fibre interaction; Introduction to thermodynamics and kinetics of dyeing; Methods for determination of wash, light and rubbing fastness.
Classification of dyes; Dyeing of cotton, wool, silk, polyester, nylon and acrylic with appropriate dye classes; Dyeing of polyester/cotton and polyester/wool blends; Dyeing machines; Dyeing of cotton knitted fabrics and machines used; Dye fibre interaction; Introduction to thermodynamics and kinetics of dyeing; Methods for determination of wash, light and rubbing fastness.
DEFINITION: Pigment is a substrate in a particulate form which is insoluble in water but which can be dispersed in this medium to modify its color and light scattering properties. They are organic or inorganic coloring materials. They have no affinity to textile materials. They are fixed on the textile material with the help of binding agent in form a thin invisible coating.
DEFINITION: Pigment is a substrate in a particulate form which is insoluble in water but which can be dispersed in this medium to modify its color and light scattering properties. They are organic or inorganic coloring materials. They have no affinity to textile materials. They are fixed on the textile material with the help of binding agent in form a thin invisible coating.
Special Instruction:
Fabric shrinkage must keep within ±5%
Color fastness should be 4-5 range
Pilling range 3 to 5
pH range 5.5 to 7
Fabric weight will be allowed ±02%
Fabric quality should be s per approved swatches & Lab-Dips.
Batch to batch color matching should be 4-5
Batch to batch “Shade Band Swatch” must be submitted for approval.
It has great effect of hot brand reactive dye on cotton fabric with exhaustion method. Migration method is more acceptable for proper color fixation in a dyeing process. Another way when we followed ISO method has create a lot of problem such as wash fastness variation rubbing fastness variation, uneven dyeing etc. If we want to get perfect dyeing than we must maintain migration method.
Dyeing is the application of dyes or pigments on textile materials such as fibers, yarns, and fabrics with the goal of achieving color with desired color fastness. Dyeing is normally done in a special solution containing dyes and particular chemical material. … In dyeing, it is applied to the entire textile.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
#vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore#blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #blackmagicforlove #blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #Amilbabainuk #amilbabainspain #amilbabaindubai #Amilbabainnorway #amilbabainkrachi #amilbabainlahore #amilbabaingujranwalan #amilbabainislamabad
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
3. Enhancing Our Presentation
We have feature for every step of the way
IntroIntro
ductiducti
on &on &
DiscuDiscu
ssionssion
ChemiChemi
stry &stry &
MechMech
anismanism
ApplicApplic
ationation
&&
PractiPracti
cesces
5. Definition
• A dye, which is capable of reacting chemically
with a substrate to form a covalent dye
substrate linkage, is known as reactive dye.
• Here the dye contains a reactive group and
this reactive group makes covalent bond with
the fiber polymer and act as an integral part of
fiber.
7. Reasons for so named
• Reactive dyes are so called because this is the
only type of dye, which has reactive group,
and that reactive group reacts chemically with
fiber polymer molecules and form covalent
bond.
8. 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 powder, liquid and print paste form.
3. During dyeing the reactive group of this dye forms covalent bond
with fibre polymer and becomes an integral parts of the fibre.
4. Reactive dyes are soluble in water.
5. They have very good light fastness with rating about 6.
6. Textile materials dyed with reactive dyes have very good wash
fastness with rating about 4-5 due to strong covalent bonds formed
between fibre polymer and reactive group of dye.
7. Reactive dye gives brighter shades and has moderate rubbing
fastness.
8. Dyeing method of reactive dyes is easy.
9. It requires less time and low temperature for dyeing.
9. History two chemists of ICI company (UK) named
Stephen and Rattee
invent a new dye in
1956
They were awarded gold medal of the
society of dyes and colorists for the year
1960
The first three reactive dyes were
PROCION YELLOWR,
PROCION BRILLIANT RED 2B
PROCION BLUE 3G
10. Reason of Popularity
• Ability to produce bright
shades of wide range.
• High leveling quality.
• Good washing fastness.
• Good light fastness.
• Simple dyeing method
therefore one stage dyeing.
• Low temperature dyeing
(below 1000
C)
• Lower cost, i.e. cheaper.
11. Classification
On the basis of reactive group:
1. Halogen derivatives
Triazine group
Pyridimine group
Quinoxaline dyes
2. Activated vinyl compound
On the basis of temperature:
1.Hot Brand
2.Cold Brand
On the basis of reactivity:
1.Highly reactive
2.Moderate reactive
3.Lower reactive
12. Trade Name
Trade name Manufacturer Country
Procion I.C.I U.K
Cibacron Ciba Switzerland
Remazol Hoechst Germany
Levafix Bayer Germany
Reactone Geigy Switzerland
Primazin BASF Germany
Drimarine Sandoz Switzerland
14. Characteristics of reactive group of reactive dye:
• Reactive groups do not contribute to the color of dye. Chromogen group
imparts it.
• The reactivity of vinyl sulphone group is less than that of halogen group.
• If no of reactive group increases, binding also increases.
• Reactive dye absorb up to 90%.
• Molecular weight of reactive group 69-211gm/ mole.
• If the molecular weight of reactive group increases, reactivity increases.
• Chlorine imparts medium reactivity, but it is cheap.
• Reactivity of fluorine is the least and its rate hydrolysis is also less.
• Reactivity of vinyl sulphone group increases with increasing temperature
and pH.
• Sulphone group has more solubility but it is not stable.
• Generally low molecular weight dyes are of hot brand.
• Less affinity dyes are used for pad method.
15. Assistants used for dyeing with reactive dyes
• Salt:
It neutralizes the electro negativity of fibre surface when immersed in
solution.
It puts extra energy to push the dye inside the fibre polymer i.e. increase
absorption of dye.
• Alkali:
to maintain proper pH in dye bath and thus to create alkaline condition.
Alkali is used as a dye-fixing agent.
• Urea: It helps to get required shade of dye.
• Soaping:
Extra color is removed from fibre surface. Thus washing fastness is
improved. Soaping increases the brightness and stability of the dye.
16. Dyeing mechanism of reactive dye
• Exhaustion of dye in presence of electrolyte or
dye absorption.
• Fixation under the influence of alkali.
• wash-off the unfixed dye from material
surface.
18. IMPORTANT FACTORS FOR DYEING CELLULOSIC FIBRE
1) pH of the dye bath
2) Amount of alkali
3) Dyeing temperature
4) Electrolyte concentration
5) Time of dyeing
6) Liquor ratio
19. Different methods of reactive dye application
• Pad-batch method.
• Pad batch processes are of two types-
– Pad (alkali)-batch (cold) process.
– Pad (alkali)-batch (warm or hot) process.
• Pad dry method
• Pad steam method.
20. Cold Pad Batch
Steps:
1) The fabric is first padded in a padding mangle with reactive dye in
presence of an alkali.
2) The padded fabric is rolled in a batch and the batches are wrapped by
polyethylene sheets and stored in wet condition for 1-24 hours at 200-
300C in a room.
3) During the storage period, the rolls may be kept slowly rotating to
prevent seepage of the dye liquor.
4) After storing time is finished fabric is washed in a rope washing
machine to remove the unfixed dye from fabric surface.
21. Stripping
Partial stripping:
Acetic acid: 5-10 parts
Water: 1000 parts
Or
Formic acid: 2.5 to 10 parts
With water: 1000 parts
Temperature: 70 - 100°C
Time: until desired shade is
obtained.
Full stripping:
Na-hypochlorite : 1%
at room temperature
Na-hydrosulpite: 1% at boil.
Time : 30 min
Stripping becomes necessary when uneven dyeing occurs. By stripping azo
group (--N=N--) from the dye is removed.
22. Hydrolysis of reactive dye
Reaction of dye with water is hydrolysis of reactive dye
1.Hydrolysis of halogen containing reactive dye,
D-R-Cl + H-OH →D-R-OH + H-Cl
1.Hydrolysis of activated vinyl compound containing dye,
D-F-CH2-CH2-OSO3H + H-OH →D-F- CH2-CH2-OH + H2SO4
23. Prevention of Hydrolysis
• As hydrolysis increases with increasing
temperature during dissolving and application
temperature should not be more than 40°C.
• Dye and alkali solution are prepared
separately and mixed just before using.
• Dye and alkali should not be kept for long
time after mixing.
24. Dyeing Faults
• Uneven Dyeing
• Batch to Batch Shade variation
• Patchy dyeing effect
• Roll to roll variation or Meter to Meter variation
• Crease mark
• Dye spot
• Wrinkle mark
• Softener Mark