Bleached wash problem on knit /denim and solution

 

The yellowish effect on the bleached dots fabric could be due to several reasons related to the washing processes used. Here are some potential causes and solutions to address the yellowing:

Potential Causes:

1. Chemical Residues:
• Silicon Wash: Silicone-based softeners can sometimes leave a yellowish tint if not properly rinsed out.
• Enzyme Wash: Improper neutralization after enzyme treatment can cause yellowing.
• Garment Wash: The type of detergent and the pH balance during washing could affect the color.
2. Water Quality:
• High iron content in the water can cause yellowing, especially when combined with bleach.
3. Bleach Residues:
• Incomplete removal of bleach can result in yellowing over time.
4. Heat Exposure:
• High drying temperatures can cause certain chemicals to oxidize, leading to yellowing.

Solutions:

1. Rinse Thoroughly:
• Ensure that the fabric is thoroughly rinsed after each washing stage to remove any chemical residues.
2. Use Antioxidants:
• Adding antioxidants during the rinse process can help prevent oxidation and subsequent yellowing.
3. Adjust pH:
• Ensure that the pH is neutralized properly after each wash. A slightly acidic final rinse (pH 5.5-6.5) can help prevent yellowing.
4. Water Quality:
• If the water has a high iron content, using a water softener or iron remover could help.
5. Lower Drying Temperature:
• Reduce the drying temperature to prevent heat-induced yellowing.
6. Use Optical Brighteners:
• Incorporating optical brighteners in the final rinse can help maintain the fabric’s brightness.

Recommendations for Future Production:

1. Test Washes:
• Conduct small-scale test washes with different combinations of washing treatments to identify the cause of yellowing.
2. Chemical Quality Control:
• Ensure that the chemicals used in the washing process are of high quality and suitable for the fabric type.
3. Process Optimization:
• Work with your chemical supplier to optimize the washing process and chemical formulations to prevent yellowing.

By systematically adjusting these variables, you should be able to eliminate the yellowish effect and maintain the desired appearance of the bleached dots fabric.

Textile defects

 Garments Defects

Garments Defects is something we call imperfection, the incompleteness of a Garments product. Any deviation from customer requirement or standard, we can call it to defect. Anything cross from the buyer dimensional limit of a garments product that also called as a defect. There are assigned QC to detect defects in cutting, sewing, and finishing. There are three types of defects, these are 1. Critical defect 2. Major defect 3. Minor Defect. Critical Defect A defect that is likely to result in a hazardous, unsafe condition or found anything sharp in product for an individual or anyone around him using the product or that contravenes mandatory regulations. If a buyer finds a critical defect in their QC inspection, the whole lot will be marked as 'fail'. A critical defect cannot be rectified. The appearance of a critical defect in shop floor stops production. Example of Critical defect: 1. Snap Button Sharpness. 2. Drawstring Length (over 14cm kid’s item) 3. Article number missing. 4. Connecting Thread (kids item) 5. Broken needle catch in the garments. 6. Shank Button Sharp Edge. 7. Styling wrong. Major Defect A defect that is likely to result in failure; reducing the usability of the product and obvious appearance defects affecting the sale ability or shorten the life cycle of the product. The major defect is rectifiable. Example of Major defect: 1. Embroidery Broken. 2. Sequins Missing. 3. Broken Print. 4. Lycra Breaks. 5. Broken stitch. Minor Defect A defect that does not reduce the usability of the product, doesn’t show easily but is nevertheless a workmanship defect beyond the defined specifications or construction requirements. Example of Minor defect: 1. Uncut Thread (Below 1cm) 2. Fly Poor Shape (Slightly) 3. W/B Loop Slanted (Slightly)

Textile Test for woven and knitting with lab report

                     click here  to get a sample copy:       Textile Lab report sample 

                                                              

    Some  Fabric common test :

                                            

1. Strength of the fabric,
2. Stiffness test,
3. Drape test,
4. Crease recovery test,
5. Pilling test,
6. Colorfastness test,
7. Special property test 
8. Abrasion resistance 
9. shrinkage test etc                                                                                                                                                                                                                                                                                                                                                                                                                                                      1.strength of the fabric:                                                                                                                                                   a. fabric  strength, seam strength, resistance to yarn                                                                                                                                                                                                                                                                                                        Some quality control tool

1. 1. Crock meter,
   2. some software
   3. Abrasion tester,
   4. Electric Balance,
   5. Packing equipment,
   6. Doubling equipment’s,
   7. Data color software,,
   8. Cloth measuring tap,
   9. Fabric inspection machine,
   10. PH meter,
   11. Storage equipment,
   12. Spectrophotometer,
   13. Mini dyeing machine,
   14. Iron.
   15. Gsm cutter and tester

   Types of Testing and Approval Required for Apparel Shipment:

   Important list of Testing and approval needed for clothing shipment have mentioned in the below:

   1. Fastness to perspiration test,
   2. Fastness to water spotting test,
   3. Pilling resistance test,
   4. Crease resistance test,
   5. Fastness to heat test,
   6. Threads per inch test,
   7. Fastness to the chlorinated water test,
   8. Width test,
   9. Fastness to actual laundering test,
   10. Tear strength test,
   11. Tensile strength test,
   12. Stretchability and growth recovery test,
   13. Smoothness appearance test,
   14. Fastness test  after washing,
   15. Fastness to the seawater test,
   16. Thermal stability test,
   17. Fastness to light test,
   18.  slippage test seam,
   19. Fabric weight test,
   20. Abrasion resistance test

Why Sudy in Textile engineering ???

 A large part of the textile engineering curriculum is practical education history, science, literature, engineering ... how many subjects are there in our universities. It is difficult to decide what I will read. In this section on dreaming, we introduce each subject. Shakirul Islam, Lecturer in Weight Processing Engineering, Bangladesh Textile University, spoke about textile engineering today. this page has  translated by google.

                                                             

What is taught?

 

There is a common misconception about textile engineering. Many people think that textile engineering is taught to make clothes. But this has nothing to do with making clothes. The basics of textiles are mainly taught in textile engineering. The subject of this study is how to make a yarn suitable for making cloth from fiber, or how to make a fabric comfortable. Possibilities and uses of non-combustible, heat-resistant, chemical-resistant or water-resistant fabrics — all of these are taught in textile engineering. This includes textile engineering, not just engineering, but everything from everyday wear to specialized (such as jackets for firefighters or astronauts' suits). The negative impact on the environment of this huge textile sector for the world's 600 million people

Prevention is also part of textile engineering. From the fashion innovation of new designs to the maintenance of machinery or ensuring the quality of the finished product .all these are taught in textile engineering.

What is the future?

The future of a student who has passed out in textile engineering is bright. The textile sector is constantly growing. The use of textiles are increasing in various sectors including medical equipments, automobiles, aerospace, geo-textiles. Nowadays in developed countries, from microchips to huge buildings, bridges, weapon structures, bulletproof clothing — these composite materials are being made with high-strength fiber. 

If we talk about jobs, we will say that we are not able to provide even half of the amount of textile engineers that our country needs. Anyone who passes in textile engineering can easily get involved in garment industry. So far our students are usually accustomed to two types of jobs. Merchandiser of factory production and buying house. Although the salaries of merchandisers are relatively high in the beginning, when those involved in production begin to become experienced, their demand increases, as do their salaries.

Where is the career?

Textile mills, factories, buying houses, human resources, fashion designing, marketing are all open to textile engineers. Reading textile engineering is not just a matter of working in a textile mill, factory. Those of us here who are studying industrial production or machine design, machine maintenance, can also contribute to other work besides textiles. If one wants to be an entrepreneur, there are endless opportunities for him. No one is designing textile machines in our country yet. We have to depend on foreigners for instruments. Our production is going on with the machines made by them. Apart from this, if any device is damaged, people from foreign companies are coming and fixing it. All in all, the factory is losing 20-25 days of production. And foreigners have high wages. Or suppose, our country does not yet have its own machinery or institution to maintain the quality of manufactured products. There are a few companies that are all foreigners. Maybe our local engineers are working there, but the owners of the company are foreigners. In addition, we do not yet have any good quality 'dice chemical' made by ourselves. Work is going on by importing from abroad. Today's young entrepreneurs can think about these sectors if they want.

Lately, many are going to study abroad(germany,china,hongkong,USA,UK...) after graduating in textile engineering. Some are returning to the country after graduation, PhD and joining the job, some are looking for a job in that country. 

Who will read?

As the chances of success in the textile sector are high, so is the challenge. As such, those who love to take up the challenge are welcome in the textile sector. Chemistry covers a large part of textile engineering. Knowledge of physics required for machinery. As well as those who like to read chemistry, physics or think about it, they can also read. Go to science subjects

Don't be afraid, for those who are interested in tackling new challenges, textile engineering can be a very good subject for study.

Textile Application in Germany

 🇩🇪    Application  in Hocschule Niederrhein University of Applied Science.

🇩🇪   Management of Textile Trade & Technology.

🇩🇪  A valid passport.

Summer semester application deadline 15th December.

Winter semester application deadline 15th june.

1.Course selection for M.sc or B.sc from Daad👉https://www.daad.de/en/

2. Follow The Course Requirements.👉https://www.hs-niederrhein.de/faculties/textile-and-clothing-technology/

3. Collection all documents :

    a) Ssc,Hsc,B.sc certificate with Mark sheet (cgpa 3.30 up Must should maintain otherwise you may not get your admission but you can try if you have score 3.00 up) 👉 Attested

    b) IELTS (6+) (1700 taka for Examination) and Attested it from german embassy free.

   c) Recommendation letter from         Univesrsity. 2copy from different professor. n/a:without Attested.

  d) Motivational letter from your own knowledge.(Maximum 2 page). n/a:Without Attested.

e) cv (europass)👉https://europa.eu/europass/eportfolio/screen/profile-wizard?lang=en

f) R&d,

 you will find several topics from university web portal regarding your desire semester  along with you will get specification(lines,mergines,border,font,literature review, objective,methodology, conceptual design, sowrn declaration, reference with citation etc) how to do this R&D.you have to choose one topic).I have sample copy on my blogsite. n/a: without Attested

g) MOI=Medium of Instruction English, collect it from your own university,if you have no IELTS score you can apply with this paper but without IELTS German Embassy don't give you visa.

h) Travel Insurance 👉 please german embassy website for Which Insurance  Company would be accepted by German Embassy. 

4. All documents attested from german embassy Dhaka.(free).  within 1&2 week you will get mail or phone from embassy for collection.

5. Registration in Uni-assist  portal.( free)👉https://www.uni-assist.de/

6. Sent all documents to Uni-assist and fill all criteria. (75 euro for one course via bank or credit card)

7. Sent all Attested documents  hard print or photocopy to Uni-assist address via from one of them=DHL(best),FedX,First express,(2500 taka).

8. Uni-assist confirmed to you that your all documents is correct and also they will send it to your university. from now your university will contact with you. n/a: If your documents don't match of university requirement then Uni-assist can reject you.

9.This step you will get your offer letter.after that you have to send 10,236 euro (10laks) in german bank through Fintiba (deutschland) with sonali bank(Bangladesh). within 1 to 3 days you will get your blocked confirmation.👉https://www.fintiba.com/

Alhamdulillah!!! 

10. Now Take your Embassy date or Appointment for getting your visa.

11. Embassy face. All documents 2 set photocopy with original documents,passport,block account confirmation copy.health insurance papers,*IELTS,*Admission letter( approximately 7,000 taka embassy fee).follow german Embassy website for getting recent update or which documents should need for visa application.👉https://dhaka.diplo.de/

12. Normally 1 months later or it depends, you will get your visa.say Alhamdulillah!!! 

13. Air ticket online booking and payment confirmed (Normally 55,000 taka).👉https://www.emirates.com/de/english/

14. Shopping 🥰🥰🥰Take care of your family memebers.

16.Manage your residence house near your university.

15. Fly and arrive on frankfurt or dusseldorf. and taking rest for few days.

16.complete Enrollment,city registretion, Health Insurance,Collect social number & tax identification number from finanzamt office, extention your visa and take work permit.

17.unblock your account.

18.arrange a part time job and start your study. pray 5 salah everyday as you are Muslim.

May the dream be like the chest of the sky, be successful like a holy flower.

Remember: If someone do something better, you have to understand you will do it today or tomorrow!!! 

Danke schön 👍

 

 

    

German study Application full process In Bangla Blog.

জার্মানিতে কীভাবে পড়াশুনার জন্য আবেদন করবেন তার লিংক👎👎👎👎👎
https://www.bessig.de/post/ধ-প-ধ-প-জ-র-ম-ন-ত-উচ-চশ-ক-ষ

R&D for Textile (Hochschule niederrhein sample copy)

R&D for Textile (Hochschule niederrhein
A sample copy of research and development for applying in hochschule niederrhein university of applied science

https://drive.google.com/folderview?id=1GQ1HTwMUIM3y1Rg7zfqFwuYEZL_mzJu-

                                or

                                                          

R&D

R & D Project

Bio- based materials for functional textiles 

The textile industry is immensely based on novelty and advancement of higher execution incentive for the fashion industry. functional textiles are one of the most significant fields in textile industry and textile materials science. some functional and smart textiles band with the market covers a range of materials-both woven and nonwoven-used in applications such as  oil repellent textiles ,ultraviolet protective ,water repellent, flame resistant, cool feeling, jogging clothing, cycling textile, antifungal and antibacterial textile, ultraviolet protective textile, biomass briquettes functional textiles made from natural fiber, polymer and bio-based membrane.[Prof.(Dr.)M.D.Teli;2019].

INTRODUCTION :

Bio-based fiber manifested from renewable raw materials.textiles that are bio-based are derived from renewable resources including starch from corn and,cassava,sugar cane,pinatex from pineapple leaves [Prahl,A;2018] these bio-based materials are a substitute to petroleumbased product. therefore, bio-based materials are effectively bridges the hole into synthetic and natural fibers and wide range of uses in packaging, house ware, clothing, medical (sewing, vascular & tissue implants) [Yimin Qin;2016] and other functional textiles.

OBJECTIVE OF THIS STUDY:

To promising high performance lingering quality that claim of consumers.Bio-based product will be biodegradability avoids extensive recycling cost.[Richardson,C;2018].To obtain excessive dye exhaustion and minimize the cost of functional textiles. Specially medical absorbable and protective items.To achieving  mite-resistance, energy efficient non-toxicity and hygienic of textiles.

DESCRIPTION & RESEARCH GOAL :

A Varied range of textile product is being made from biosynthetic fibers. Dependency on petroleum-based resource is becoming more risky,Onward merchandise bio-based resources gives us substitute to creating textiles and apparel, while opening up advantage for new performance with less influence on resource use.[Mather,S;2018].Bio-materials will be ecofriendly.This research will encourage the future to analysis more elements of environment.

LITERATURE REVIEW :   

Although.Conventional textiles materials have some adverse feature that can not be withdrawn.However,Research of new textiles from natural renewable resource is necessary & essential not only apparels but also technical properties for good appearance,easy care,and deals with smart textiles:electronics,automotive etc. by advancement of technology

[Daniele et al,Monica et al,Fabien et al;n.d.].Bio-based product is uplifted processing for lower temperature yarn texturing and dying action for textile product.  

 

 

 

CONCEPTUAL FRAMEWORK:

Thereare some 100% bio-based, biodegradable, on-toxic polymers are polylactic acid  (C₃H₄O₂)_n,polyhydroxibutyrate-co-valerate(PHBV),and polyurethanes(wheat

straw).[textileexchange,2018,p.12;13] but, due to some obstacle of high brittleness(PLA) & Imperfect spinnability (PHBV) Both are not easy to use in textile. Nevertheless, blending of

PLA &PHBV into textile fibers provides us good result.Developed by the hong kong research 

<<<<design look in drive link><

1.     Find out bio-based materials from natural resources and modify for fibre (e.g:sugar cane) 

2.     By checking fiber maturity,brittleness,rigidity,tensile strength when fibre can be found.

3.     If we get fibre then ahead with the support of yarn processing technology for functional textiles.

4.     If it’s need to dye following a set of parameters: (temperature,time,liquor ratio,Ph values).

5.     It should   maintain certified   rules of materials and textiles organization

6.     For manufacture of stockings this outcome manner correspond with the industrial   standard [HKRITA;n.d,]

7.     Final packaging and reach to the consumers with worldwide.

REFERENCES :

1.     Prahl.A;(2018).Desigener’s choice:Bio-based textile innovation [online] knitting industry. Available  at: http://www.knittingindustry.com [viewed 16 Nov 2019]

2.     Henze.R;(2017)Bio-based textile for apparel end-uses[online]textile world. Available at: http://www.textileworld.com [viewed 10 Nov 2019]

3.     Mujumdar,A;(2018).Functional textiles and clothing.[online]Springer.Available at: http://www.springer.com [viewed 9 Nov 2019]

4.     Roy.A.k;(2017).Biopolymer In Textile Industry[online]Textile Learner.Available at: http://www.textilelearner.blogspot.com [viewed 11 Nov 2019]

5.     New functional textile from bio-basd and degradable fibers(n.d.),The Hong Kong Research Institute Of Textiles And Apparels.Available at: http://hkrita.com [viewed 11 Nov 2019]

6.     Gordon,J;1959.Handbook Of Textile Fibres. 5 ed.England: Woodhead Publishing Ltd.

SWORN  DECLARATION:

I declare under oath that I have prepared the project outline was personally compiled and without the help of others and that no other sources or aids were used apart from those listed with quotations. This paper has not been Submitted to any institution in the same or similar form before in order to obtain order to obtain a degree.

 

                                                                                                                                                                                                       

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