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B1 noun #6,000 الأكثر شيوعاً 9 دقيقة للقراءة

رنگ‌زدایی

rangzodayi
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رنگ‌زدایی في 30 ثانية

  • رنگ‌زدایی means color removal or decolorization.
  • It's often used in scientific and industrial contexts.
  • Think of it as the opposite of dyeing or coloring.
  • It can describe intentional processes or natural fading.
Meaning
The word 'رنگ‌زدایی' (rang-zodā'i) directly translates to 'color removal' or 'decolorization'. It refers to the process of taking away color from something, making it lose its hue and often become white, pale, or transparent. This can happen naturally or be an intentional action. It's a technical term often used in chemistry, manufacturing, and even in discussions about aging or damage to materials.
Contexts
You might encounter 'رنگ‌زدایی' in scientific articles discussing bleaching agents or chemical reactions that strip color. In industry, it's relevant to processes like paper manufacturing (bleaching wood pulp) or textile production (removing dye). On a more everyday level, it can describe the fading of clothes over time due to sunlight or washing, or the discoloration of objects due to exposure to certain substances. It can also be used metaphorically to describe a loss of vibrancy or excitement, though this is less common.

The رنگ‌زدایی of the fabric was due to prolonged exposure to sunlight.

Chemicals are used for the رنگ‌زدایی of the paper pulp.

Examples in Use
Consider a scenario where a brightly colored garment is left on a windowsill for months. The sun's rays can cause the pigment to break down, leading to a noticeable fading. This process is 'رنگ‌زدایی'. Similarly, in a laboratory, a chemist might use a bleaching agent to remove the color from a solution as part of an experiment. This is also 'رنگ‌زدایی'. The term emphasizes the action or result of losing color, whether it's a gradual process of decay or a rapid chemical treatment.
Nuances
While 'رنگ‌زدایی' primarily refers to the physical removal of color, it can sometimes imply a loss of vitality or character. For instance, if a historical document has faded significantly over time, one might say its original vibrancy has undergone 'رنگ‌زدایی'. However, this metaphorical use is less common than its literal meaning in scientific and industrial contexts.
Basic Structure
'رنگ‌زدایی' is a noun. It often appears after verbs that describe the action of causing color removal, or as the subject/object of a sentence describing the process itself. Common verbs used with it include 'انجام دادن' (to perform), 'رخ دادن' (to happen), 'سبب شدن' (to cause), or simply describing the state of something that has undergone it. For example, 'رنگ‌زدایی پارچه' (rang-zodā'i-ye pârche) means 'the decolorization of the fabric'.

The رنگ‌زدایی of the old photograph made it look ancient.

In Scientific Contexts
In scientific or technical writing, 'رنگ‌زدایی' is often used to describe a specific chemical process. You might see it in sentences like: 'این ماده شیمیایی برای رنگ‌زدایی کاغذ استفاده می‌شود.' (This chemical is used for the decolorization of paper.) Here, 'رنگ‌زدایی' is the purpose or the process being described.

The experiment aimed to achieve complete رنگ‌زدایی of the solution.

Describing Natural Processes
It can also describe natural phenomena. For instance, discussing the effects of weather on an object: 'نور خورشید باعث رنگ‌زدایی تدریجی این مجسمه شد.' (Sunlight caused the gradual decolorization of this statue.) In this case, 'رنگ‌زدایی' is the outcome of a natural process.
Active vs. Passive
You can use it in active sentences where something performs the action, or in passive sentences where the action is done to something. For example, 'کارگر رنگ‌زدایی را انجام داد' (The worker performed the decolorization) is active. 'رنگ‌زدایی انجام شد' (The decolorization was performed) is passive. The noun itself remains unchanged.
Chemistry and Science Labs
This is perhaps the most common domain for 'رنگ‌زدایی'. You'll hear it in discussions about chemical reactions, bleaching processes, and the properties of substances. Researchers and students in chemistry, biology, and environmental science might use it frequently when describing experiments or phenomena related to color changes. For example, a student might explain their project: 'ما از پراکسید هیدروژن برای رنگ‌زدایی لکه‌های رنگی استفاده کردیم.' (We used hydrogen peroxide for the decolorization of colored stains.)

The lab technician explained the رنگ‌زدایی process to the new interns.

Manufacturing and Industry
In industries that deal with materials like textiles, paper, or plastics, 'رنگ‌زدایی' is a crucial term. It refers to processes like bleaching pulp to make white paper, removing dye from fabrics for recycling or to create new colors, or cleaning materials. A factory manager might discuss efficiency improvements related to 'رنگ‌زدایی' in their production line. For example: 'فرآیند رنگ‌زدایی در کارخانه ما بهینه‌سازی شده است.' (The decolorization process in our factory has been optimized.)

The textile industry uses various chemicals for رنگ‌زدایی of fabrics.

Conservation and Restoration
Art conservators and historians might use 'رنگ‌زدایی' when discussing the degradation of artworks or documents. They might talk about the 'رنگ‌زدایی' of pigments due to light exposure or chemical reactions over centuries. For instance: 'مطالعه رنگ‌زدایی رنگدانه‌ها در طول زمان برای درک تخریب آثار هنری مهم است.' (The study of pigment decolorization over time is important for understanding art deterioration.)
Everyday Language (Less Common)
While less frequent in casual conversation, you might hear it when people discuss the fading of their clothes. Instead of just saying 'رنگش رفته' (its color has gone), someone might use 'رنگ‌زدایی' to sound more precise or perhaps slightly formal when describing the cause. For example: 'این پیراهن به خاطر شستشوی زیاد دچار رنگ‌زدایی شده است.' (This shirt has undergone decolorization due to excessive washing.)
Confusing with Fading
While fading is a form of 'رنگ‌زدایی', the term itself is more formal and technical. In casual conversation, people often use simpler phrases like 'رنگش پریده' (rang-esh parideh - its color has faded) or 'رنگش رفته' (rang-esh rafteh - its color has gone). Using 'رنگ‌زدایی' in a very informal chat might sound a bit out of place, like using 'decolorization' instead of 'fading' in English.

Mistake: 'لباسم رنگ‌زدایی شده.' (My clothes have decolorized - too formal for casual chat).
Better: 'لباسم رنگش پریده.' (My clothes' color has faded.)

Using 'رنگ‌زدایی' for a simple faded shirt can sound overly technical.

Overuse in Metaphorical Sense
'رنگ‌زدایی' is primarily a literal term referring to the physical removal of color. While it can be used metaphorically to describe a loss of vibrancy or excitement, this is not its primary or most common usage. Overusing it metaphorically might confuse listeners or make the speaker sound unnatural. Stick to its literal meaning unless the context strongly suggests a figurative interpretation.

Mistake: 'جلسه دیروز رنگ‌زدایی بود.' (Yesterday's meeting was decolorization - unclear metaphor).
Better: 'جلسه دیروز کسل‌کننده بود.' (Yesterday's meeting was boring.)
Incorrect Verb Collocations
As a noun, 'رنگ‌زدایی' needs appropriate verbs to describe the action. Learners might mistakenly try to use it as a verb or attach incorrect verbs. Remember it's the *process* or *result* of color removal.

Mistake: 'من رنگ‌زدایی کردم.' (I decolorized - sounds like you performed the action yourself without a clear object).
Better: 'من رنگ‌زدایی را روی پارچه انجام دادم.' (I performed the decolorization on the fabric.) or 'پارچه رنگ‌زدایی شد.' (The fabric was decolorized.)
Misunderstanding the Scope
'رنگ‌زدایی' implies a significant removal or stripping of color, often to a pale or white state. It's not typically used for minor color changes or subtle shifts in hue. Using it for slight fading might be an exaggeration.

Mistake: 'این مداد رنگی کمی رنگ‌زدایی شده.' (This colored pencil has slightly decolorized - an overstatement).
Better: 'این مداد رنگی کمی کمرنگ شده.' (This colored pencil has become a bit lighter/faded.)
رنگ‌پریدگی (rang-paridegi)
Meaning: Fading, paleness. This is a more common and less technical term than 'رنگ‌زدایی'. It often describes the natural process of color loss due to time, light, or washing.
Usage: More common in everyday language to describe things like faded clothes, old photographs, or even a pale complexion.
Example: 'لباس‌های قدیمی اغلب دچار رنگ‌پریدگی می‌شوند.' (Old clothes often suffer from fading.)
Difference: 'رنگ‌زدایی' implies a more active or complete removal of color, often through a process, while 'رنگ‌پریدگی' is more about the state of being faded.

'رنگ‌پریدگی' is like 'fading', while 'رنگ‌زدایی' is like 'decolorization'.

سفید کردن (sefid kardan)
Meaning: To whiten, to bleach. This is a verb phrase that describes the action of making something white, often by removing color. It's closely related to 'رنگ‌زدایی' but focuses on the end result of whiteness.
Usage: Used when the goal is explicitly to achieve a white color. 'کاغذ را با مواد شیمیایی سفید می‌کنند.' (They whiten the paper with chemicals.)
Difference: 'سفید کردن' is the *action* of making white, which often involves 'رنگ‌زدایی'. 'رنگ‌زدایی' is the *process* of removing color, which may or may not result in pure white.
بی‌رنگ کردن (bi-rang kardan)
Meaning: To decolorize, to make colorless. This is another verb phrase that is very close in meaning to 'رنگ‌زدایی'. It emphasizes the removal of color, making something lack any hue.
Usage: Often used interchangeably with 'رنگ‌زدایی کردن' (to decolorize). 'برای آزمایش، محلول را بی‌رنگ کردیم.' (For the experiment, we made the solution colorless.)
Difference: 'بی‌رنگ کردن' is the active verb form, while 'رنگ‌زدایی' is the noun form of the process. They are semantically very similar.
تضعیف رنگ (ta'zif-e rang)
Meaning: Weakening of color. This phrase describes a reduction in the intensity or saturation of a color, which is a less extreme form of color loss than complete decolorization.
Usage: Used when the color becomes less vibrant but still present. 'نور شدید باعث تضعیف رنگ نقاشی شد.' (Intense light caused the weakening of the painting's color.)
Difference: 'تضعیف رنگ' is about making the color weaker, while 'رنگ‌زدایی' is about removing it altogether.

How Formal Is It?

حقيقة ممتعة

The suffix '-زدایی' (-zodāyi) is quite productive in Persian and is used to form nouns indicating removal or cleansing. For example, 'گرد و غبارزدایی' (gord o ghubār-zodāyi) means 'dust removal' or 'cleaning'.

دليل النطق

UK /rænɡ.zɒːd̪ɑːjɪ/
US /rænɡ.zɒːd̪ɑːjɪ/
Typically on the penultimate syllable: rang-zo-DA-yi
يتقافى مع
پایین‌دستی نزدیک‌دستی پشت‌دستی دست‌درازی رنگ‌بازی آب‌بازی دود بازی قلم‌کاری
أخطاء شائعة
  • Mispronouncing the Persian 'r' sound (should be rolled/tapped, not like English 'r').
  • Incorrectly shortening or lengthening vowel sounds.
  • Confusing the 'z' sound with 's'.
  • Not giving enough emphasis to the stressed syllable.

مستوى الصعوبة

القراءة 3/5

CEFR B1. The word 'رنگ‌زدایی' is a noun referring to a specific process. While not overly complex in meaning, its usage is often found in more technical or formal contexts, requiring a learner to understand these domains. The structure of sentences using it can sometimes involve passive voice or causal relationships, which are typical for B1 level texts.

الكتابة 3/5
التحدث 3/5
الاستماع 3/5

ماذا تتعلّم بعد ذلك

المتطلبات الأساسية

رنگ (color) بردن (to take/carry) زدن (to hit/apply) پاک کردن (to clean) شدن (to become/happen)

تعلّم لاحقاً

رنگرزی (dyeing) رنگ‌سازی (dye manufacturing) براق (shiny) کدر (dull) پیگمان (pigment)

متقدم

اکسیداسیون (oxidation) کاهش (reduction) فوتوشیمیایی (photochemical) کاتالیزور (catalyst) پلیمر (polymer)

قواعد يجب معرفتها

Using the 'ezāfe' construction (kasra) to link nouns and adjectives.

رنگ‌زداییِ پارچه (rang-zodāyi-ye pârche) - the decolorization of the fabric.

Passive voice construction with 'شدن' (shodan).

پارچه رنگ‌زدایی شد. (pârche rang-zodāyi shod) - The fabric was decolorized.

Using the verb 'باعث شدن' (bā'es shodan) to indicate causation.

نور خورشید باعث رنگ‌زدایی فرش شد. (nur-e khurshid bā'es-e rang-zodāyi-ye farsh shod) - Sunlight caused the carpet's decolorization.

Forming compound nouns.

رنگ + زدایی = رنگ‌زدایی (color + removal = decolorization)

Using adjectives before nouns or after with 'ezāfe'.

رنگ‌زداییِ مؤثر (rang-zodāyi-ye mo'asser) - effective decolorization.

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أمثلة حسب المستوى

1

این پارچه رنگ ندارد.

This fabric has no color.

Simple sentence structure.

2

رنگ سفید است.

The color is white.

Basic adjective usage.

3

آب رنگ ندارد.

Water has no color.

Simple noun-adjective structure.

4

این گل رنگی نیست.

This flower is not colorful.

Negation with 'نیست'.

5

رنگ لباس من آبی است.

My clothes' color is blue.

Possessive structure.

6

این کاغذ سفید است.

This paper is white.

Simple noun-adjective.

7

من رنگ را دوست ندارم.

I don't like color.

Negation with 'ندارم'.

8

اینجا رنگی نیست.

It is not colorful here.

Simple statement.

1

نور خورشید رنگ لباس را می‌برد.

Sunlight takes the color out of clothes.

Verb 'بردن' used for removing color.

2

این ماده رنگ را از بین می‌برد.

This substance removes color.

Verb phrase 'از بین بردن'.

3

آن رنگ قدیمی دیگر نیست.

That old color is no longer there.

Simple past tense implication.

4

آنها رنگ را از روی دیوار پاک کردند.

They cleaned the color off the wall.

Verb 'پاک کردن' (to clean).

5

این پارچه رنگش پریده است.

This fabric's color has faded.

Idiomatic phrase 'رنگش پریده است'.

6

محلول بی‌رنگ شد.

The solution became colorless.

Adjective 'بی‌رنگ' (colorless).

7

رنگ چمن در تابستان کم می‌شود.

The grass's color diminishes in summer.

Verb 'کم شدن' (to decrease).

8

این عکس رنگی ندارد.

This photo has no color.

Simple negation.

1

فرآیند رنگ‌زدایی برای تولید کاغذ سفید ضروری است.

The decolorization process is essential for producing white paper.

'رنگ‌زدایی' as a noun, 'ضروری است' (is essential).

2

مواد شیمیایی خاصی برای رنگ‌زدایی پارچه‌های رنگی استفاده می‌شود.

Specific chemicals are used for the decolorization of colored fabrics.

Passive voice construction.

3

نور شدید خورشید باعث رنگ‌زدایی تدریجی فرش شد.

Intense sunlight caused the gradual decolorization of the carpet.

'باعث ... شد' (caused), adjective 'تدریجی' (gradual).

4

در آزمایشگاه، ما رنگ‌زدایی یک محلول را مطالعه کردیم.

In the laboratory, we studied the decolorization of a solution.

'مطالعه کردیم' (we studied), direct object 'رنگ‌زدایی'.

5

رنگ‌زدایی لباس‌ها پس از شستشوهای مکرر اجتناب‌ناپذیر است.

The decolorization of clothes after frequent washes is unavoidable.

'اجتناب‌ناپذیر است' (is unavoidable), adjective 'مکرر' (frequent).

6

هدف این تحقیق، یافتن روش‌های مؤثرتر رنگ‌زدایی است.

The aim of this research is to find more effective decolorization methods.

'هدف ... یافتن ... است' (the aim is to find), adjective 'مؤثرتر' (more effective).

7

رنگ‌زدایی طبیعی چوب در معرض هوا رخ می‌دهد.

The natural decolorization of wood occurs when exposed to air.

'رخ می‌دهد' (occurs), noun phrase 'رنگ‌زدایی طبیعی چوب'.

8

پس از رنگ‌زدایی، پارچه آماده رنگرزی جدید است.

After decolorization, the fabric is ready for new dyeing.

'آماده ... است' (is ready for), contrast with 'رنگرزی' (dyeing).

1

تکنیک‌های پیشرفته رنگ‌زدایی در صنعت نساجی برای بازیافت پارچه‌ها به کار می‌روند.

Advanced decolorization techniques are employed in the textile industry for fabric recycling.

Passive voice 'به کار می‌روند' (are employed), adjective 'پیشرفته' (advanced).

2

رنگ‌زدایی مواد آلی با استفاده از عوامل اکسیدکننده قوی، یک فرآیند شیمیایی رایج است.

The decolorization of organic materials using strong oxidizing agents is a common chemical process.

Noun phrase 'رنگ‌زدایی مواد آلی', adjective 'قوی' (strong).

3

مطالعات نشان داده‌اند که رنگ‌زدایی ناشی از اشعه ماوراء بنفش می‌تواند به ساختار پلیمرها آسیب برساند.

Studies have shown that decolorization caused by ultraviolet radiation can damage the structure of polymers.

'ناشی از' (caused by), relative clause.

4

کارشناسان مرمت آثار باستانی از روش‌های ملایم رنگ‌زدایی برای حفظ جزئیات استفاده می‌کنند.

Art conservation experts use gentle decolorization methods to preserve details.

Adjective 'ملایم' (gentle), infinitive phrase 'حفظ جزئیات'.

5

رنگ‌زدایی ناخواسته در ظروف چینی قدیمی می‌تواند ارزش تاریخی آن‌ها را کاهش دهد.

Unwanted decolorization in old porcelain dishes can reduce their historical value.

Adjective 'ناخواسته' (unwanted), verb 'کاهش دهد' (reduce).

6

تحقیقات بر روی توسعه روش‌های رنگ‌زدایی پایدارتر و سازگار با محیط زیست متمرکز شده است.

Research is focused on developing more sustainable and environmentally friendly decolorization methods.

Verb 'متمرکز شده است' (is focused), adjectives 'پایدارتر' (more sustainable), 'سازگار با محیط زیست' (environmentally friendly).

7

تأثیر عوامل مختلف بر سرعت رنگ‌زدایی رنگدانه‌های طبیعی در حال بررسی است.

The effect of various factors on the rate of decolorization of natural pigments is under investigation.

'در حال بررسی است' (is under investigation), noun phrase 'سرعت رنگ‌زدایی رنگدانه‌ها'.

8

هدف نهایی، دستیابی به فرآیند رنگ‌زدایی است که حداقل اثرات جانبی را داشته باشد.

The ultimate goal is to achieve a decolorization process that has minimal side effects.

'دستیابی به' (to achieve), adjective phrase 'حداقل اثرات جانبی'.

1

به دلیل ماهیت پیچیده پیوندهای مولکولی، رنگ‌زدایی کامل برخی مواد نیازمند شرایط واکنشی دقیقی است.

Due to the complex nature of molecular bonds, the complete decolorization of some materials requires precise reaction conditions.

Adverbial clause 'به دلیل ماهیت پیچیده', noun phrase 'رنگ‌زدایی کامل', adjective 'دقیق'.

2

رنگ‌زدایی ناشی از اکسیداسیون می‌تواند منجر به تغییرات ساختاری برگشت‌ناپذیر در الیاف سلولزی شود.

Decolorization caused by oxidation can lead to irreversible structural changes in cellulosic fibers.

'ناشی از' (caused by), 'منجر به' (lead to), adjective 'برگشت‌ناپذیر' (irreversible).

3

پژوهشگران در حال بررسی پتانسیل رنگ‌زدایی فوتوکاتالیستی برای تصفیه پساب‌های صنعتی رنگی هستند.

Researchers are investigating the potential of photocatalytic decolorization for treating colored industrial wastewater.

'در حال بررسی' (investigating), noun phrase 'پتانسیل رنگ‌زدایی فوتوکاتالیستی'.

4

فرایندهای رنگ‌زدایی سنتی اغلب با تولید حجم قابل توجهی از پسماندهای مضر همراه هستند.

Traditional decolorization processes are often accompanied by the generation of a significant volume of harmful waste.

'فرایندهای سنتی', 'همراه هستند با' (are accompanied by), adjective 'قابل توجه' (significant).

5

تکنیک‌های رنگ‌زدایی زیستی با استفاده از میکروارگانیسم‌ها، راهکاری پایدار برای کاهش اثرات زیست‌محیطی ارائه می‌دهند.

Biodecolorization techniques using microorganisms offer a sustainable solution for reducing environmental impacts.

'با استفاده از' (using), 'راهکاری پایدار' (sustainable solution), 'ارائه می‌دهند' (offer).

6

درک مکانیسم‌های مولکولی دخیل در رنگ‌زدایی، کلید توسعه روش‌های نوین و کارآمد است.

Understanding the molecular mechanisms involved in decolorization is key to developing novel and efficient methods.

'درک مکانیسم‌های مولکولی' (understanding molecular mechanisms), 'دخیل در' (involved in), 'کلید توسعه' (key to developing).

7

میزان رنگ‌زدایی تحت تأثیر غلظت عامل رنگ‌زدا، دما و زمان واکنش قرار می‌گیرد.

The extent of decolorization is influenced by the concentration of the decolorizing agent, temperature, and reaction time.

'میزان رنگ‌زدایی' (extent of decolorization), passive voice 'قرار می‌گیرد' (is influenced).

8

برنامه‌های جامع رنگ‌زدایی در صنایع چاپ و رنگرزی برای کاهش آلودگی آب ضروری است.

Comprehensive decolorization programs in the printing and dyeing industries are essential for pollution reduction.

Adjective 'جامع' (comprehensive), noun phrase 'کاهش آلودگی آب'.

1

به منظور کاهش اثرات مخرب رنگ‌زدایی شیمیایی بر اکوسیستم‌های آبی، تحقیقات گسترده‌ای بر روی جایگزین‌های زیستی متمرکز شده است.

In order to mitigate the detrimental effects of chemical decolorization on aquatic ecosystems, extensive research has focused on biological alternatives.

'به منظور' (in order to), 'اثرات مخرب' (detrimental effects), 'جایگزین‌های زیستی' (biological alternatives).

2

ماهیت فوتوشیمیایی واکنش‌های رنگ‌زدایی، امکان بهره‌برداری از انرژی نور برای حذف انتخابی رنگدانه‌ها را فراهم می‌آورد.

The photochemical nature of decolorization reactions allows for the utilization of light energy for the selective removal of pigments.

'ماهیت فوتوشیمیایی' (photochemical nature), 'بهره‌برداری از' (utilization of), 'حذف انتخابی' (selective removal).

3

تحولات اخیر در علم مواد، منجر به توسعه نسل جدیدی از جاذب‌ها با قابلیت رنگ‌زدایی فوق‌العاده بالا شده است.

Recent advancements in material science have led to the development of a new generation of adsorbents with exceptionally high decolorization capacity.

'تحولات اخیر' (recent advancements), 'نسل جدیدی از' (a new generation of), 'فوق‌العاده بالا' (exceptionally high).

4

پیچیدگی سینتیک و ترمودینامیک فرآیندهای رنگ‌زدایی، نیازمند مدل‌سازی دقیق برای بهینه‌سازی شرایط عملیاتی است.

The complexity of the kinetics and thermodynamics of decolorization processes necessitates precise modeling for the optimization of operational conditions.

'پیچیدگی سینتیک و ترمودینامیک' (complexity of kinetics and thermodynamics), 'نیازمند' (necessitates), 'بهینه‌سازی شرایط عملیاتی' (optimization of operational conditions).

5

استفاده از نانوذرات در فرآیندهای رنگ‌زدایی، پتانسیل افزایش کارایی و کاهش هزینه‌های زیست‌محیطی را به همراه دارد.

The use of nanoparticles in decolorization processes brings the potential for increased efficiency and reduced environmental costs.

'پتانسیل افزایش' (potential for increased), 'به همراه دارد' (brings).

6

فرایندهای رنگ‌زدایی غیرفعال، که غالباً با استفاده از مواد طبیعی صورت می‌گیرند، به عنوان جایگزین‌های سبز مطرح هستند.

Passive decolorization processes, often carried out using natural materials, are emerging as green alternatives.

'غیرفعال' (passive), 'غالباً با استفاده از' (often carried out using), 'به عنوان ... مطرح هستند' (are emerging as).

7

ارزیابی جامع چرخه عمر رنگ‌زدایی صنعتی، برای شناسایی نقاط ضعف و بهبود پایداری کلی ضروری است.

A comprehensive life cycle assessment of industrial decolorization is essential for identifying weaknesses and improving overall sustainability.

'ارزیابی جامع چرخه عمر' (comprehensive life cycle assessment), 'شناسایی نقاط ضعف' (identifying weaknesses).

8

تطبیق‌پذیری رنگ‌زدایی با انواع مختلف رنگدانه‌ها، چالش اصلی در توسعه فناوری‌های چندمنظوره است.

The adaptability of decolorization to various types of pigments is the main challenge in developing multifunctional technologies.

'تطبیق‌پذیری ... با' (adaptability ... to), 'چالش اصلی' (main challenge), 'فناوری‌های چندمنظوره' (multifunctional technologies).

تلازمات شائعة

رنگ‌زدایی پارچه
رنگ‌زدایی کاغذ
رنگ‌زدایی شیمیایی
رنگ‌زدایی مواد
رنگ‌زدایی طبیعی
روش‌های رنگ‌زدایی
عامل رنگ‌زدایی
فرآیند رنگ‌زدایی
باعث رنگ‌زدایی شدن
رنگ‌زدایی مؤثر

العبارات الشائعة

رنگ‌زدایی انجام دادن

— To perform decolorization; to carry out the process of removing color.

کارگران رنگ‌زدایی را روی پارچه‌ها انجام دادند.

رنگ‌زدایی رخ دادن

— Decolorization to occur; for color removal to happen.

رنگ‌زدایی طبیعی در این چوب رخ داده است.

باعث رنگ‌زدایی شدن

— To cause decolorization; to lead to the removal of color.

مواد شیمیایی باعث رنگ‌زدایی شدید لباس شد.

رنگ‌زدایی کامل

— Complete decolorization; total removal of color.

هدف آنها دستیابی به رنگ‌زدایی کامل بود.

رنگ‌زدایی تدریجی

— Gradual decolorization; slow removal of color.

نور خورشید باعث رنگ‌زدایی تدریجی عکس شد.

روش رنگ‌زدایی

— Method of decolorization; a way to remove color.

آنها از یک روش جدید رنگ‌زدایی استفاده کردند.

نیاز به رنگ‌زدایی

— Need for decolorization; the requirement to remove color.

این پارچه نیاز به رنگ‌زدایی قبل از رنگرزی دارد.

فرآیند رنگ‌زدایی

— Decolorization process; the steps involved in removing color.

فرآیند رنگ‌زدایی کاغذ بسیار پیچیده است.

رنگ‌زدایی مؤثر

— Effective decolorization; successful color removal.

آنها به رنگ‌زدایی مؤثرتری دست یافتند.

عامل رنگ‌زدایی

— Decolorizing agent; a substance used to remove color.

کلر یک عامل رنگ‌زدایی قوی است.

يُخلط عادةً مع

رنگ‌زدایی vs رنگ‌پریدگی

'رنگ‌پریدگی' (fading) is a more common, less technical term for color loss, often describing natural, gradual fading. 'رنگ‌زدایی' implies a more active or complete process of color removal, often intentional or chemical.

رنگ‌زدایی vs سفید کردن

'سفید کردن' (to whiten/bleach) focuses on the end result of achieving whiteness, which is often a consequence of 'رنگ‌زدایی'. 'رنگ‌زدایی' is the broader process of removing color, which may or may not result in pure white.

رنگ‌زدایی vs رنگ کردن

This is the opposite action of applying color, whereas 'رنگ‌زدایی' is the removal of color.

سهل الخلط

رنگ‌زدایی vs رنگ‌پریدگی

Both terms relate to the loss of color.

'رنگ‌زدایی' is the process of actively removing color, often through chemical means or industrial processes. It's a more technical term. 'رنگ‌پریدگی', on the other hand, describes the state of being faded or pale, usually due to natural causes like sunlight or washing over time. It's a more common and less technical term.

The carpet underwent 'رنگ‌زدایی' (decolorization) in the factory, but its colors are now 'رنگ‌پریده' (faded) from the sun.

رنگ‌زدایی vs بی‌رنگ کردن

Both terms mean to remove color.

'رنگ‌زدایی' is the noun form referring to the process itself. 'بی‌رنگ کردن' is the verb phrase meaning 'to make colorless'. They are semantically very close, with 'رنگ‌زدایی' often being the noun form of the action described by 'بی‌رنگ کردن'.

The goal was 'رنگ‌زدایی' (decolorization) of the solution, which they achieved by 'بی‌رنگ کردن' (making it colorless) it with a chemical.

رنگ‌زدایی vs رنگرزی

Both words relate to color and processes involving it.

'رنگرزی' is the process of dyeing or applying color to a material. It is the direct opposite of 'رنگ‌زدایی', which is the removal of color. One adds color, the other takes it away.

After the 'رنگ‌زدایی' (decolorization) of the fabric, they proceeded with 'رنگرزی' (dyeing) it a new color.

رنگ‌زدایی vs سفید کردن

Decolorization often results in a white or pale state.

'سفید کردن' specifically means 'to whiten' or 'to bleach', focusing on the end result of achieving whiteness. 'رنگ‌زدایی' is the broader term for removing color, which might result in white, but could also result in a pale version of the original color or even transparency. 'سفید کردن' is often a type of 'رنگ‌زدایی'.

They used a bleaching agent for 'رنگ‌زدایی' (decolorization) to achieve the desired 'سفید کردن' (whitening) of the paper.

رنگ‌زدایی vs تضعیف رنگ

Both terms describe a reduction in color.

'تضعیف رنگ' means 'weakening of color' or 'reduction in color intensity'. It implies the color becomes less vibrant but is still present. 'رنگ‌زدایی' means complete or significant removal of color, leading to a pale or colorless state.

The sunlight caused 'تضعیف رنگ' (weakening of color) in the painting, but a strong chemical would cause 'رنگ‌زدایی' (decolorization).

أنماط الجُمل

A2

Subject + رنگ + را + Verb (e.g., می‌برد, از بین می‌برد)

نور خورشید رنگ لباس را می‌برد.

B1

Subject + باعث + رنگ‌زدایی + Object + شد/می‌شود

مواد شیمیایی باعث رنگ‌زدایی پارچه شد.

B1

رنگ‌زدایی + از + Object + Verb (e.g., انجام می‌شود, رخ می‌دهد)

رنگ‌زدایی از کاغذ در کارخانه انجام می‌شود.

B2

Adj + رنگ‌زدایی + Noun + Verb (e.g., ضروری است, رایج است)

رنگ‌زدایی مؤثر برای بازیافت ضروری است.

B2

Agent + با استفاده از + Method + رنگ‌زدایی + را + Verb (e.g., انجام می‌دهد)

آنها با استفاده از مواد شیمیایی رنگ‌زدایی را انجام دادند.

C1

به دلیل + Cause + ، + Effect (e.g., رنگ‌زدایی + Verb)

به دلیل ماهیت مولکولی، رنگ‌زدایی کامل دشوار است.

C1

تحقیقات + بر روی + Topic + Verb (e.g., متمرکز شده است)

تحقیقات بر روی روش‌های رنگ‌زدایی پایدار متمرکز شده است.

C2

به منظور + Purpose + ، + Action (e.g., کاهش رنگ‌زدایی)

به منظور کاهش اثرات زیست‌محیطی، رنگ‌زدایی زیستی پیشنهاد می‌شود.

عائلة الكلمة

الأسماء

رنگ (rang - color)
زدودن (zodudan - to remove/strip)
زدایش (zodāyesh - removal)

الأفعال

رنگ زدن (rang zadan - to color/paint)
رنگ پریدن (rang paridan - to fade)
رنگ کردن (rang kardan - to color)

الصفات

رنگی (rangi - colorful)
بی‌رنگ (bi-rang - colorless)
رنگین (rangin - colorful/colored)

مرتبط

رنگ‌پریدگی (fading)
بی‌رنگ کردن (to decolorize)
سفید کردن (to whiten/bleach)
رنگرزی (dyeing)
رنگدانه‌ها (pigments)
سجّل مجاناً لرؤية جميع الأمثلة

كيفية الاستخدام

frequency

Medium (more common in technical/scientific contexts than everyday conversation)

أخطاء شائعة
  • Using 'رنگ‌زدایی' for simple fading in casual conversation. → Using 'رنگش پریده' or 'رنگش رفته'.

    'رنگ‌زدایی' is a technical term for active color removal. For everyday fading of clothes, simpler phrases are more natural and appropriate.

  • Confusing the noun 'رنگ‌زدایی' with a verb. → Using appropriate verbs like 'انجام دادن' (to perform) or 'رخ دادن' (to occur) with 'رنگ‌زدایی'.

    'رنگ‌زدایی' is the name of the process. You need a verb to describe the action of performing or experiencing it. For example, 'فرآیند رنگ‌زدایی انجام شد' (The decolorization process was performed).

  • Using 'رنگ‌زدایی' when the intended meaning is simply 'to make white'. → Using 'سفید کردن' (to whiten/bleach).

    'رنگ‌زدایی' means removing color, which might result in white. 'سفید کردن' specifically means to make white, focusing on the end result. If the goal is pure white, 'سفید کردن' is more precise.

  • Incorrectly translating 'decolorization' as a verb. → Using 'بی‌رنگ کردن' (to decolorize) as the verb form.

    'رنگ‌زدایی' is the noun for the process. The verb form is often 'بی‌رنگ کردن' (to make colorless) or using 'رنگ‌زدایی' with verbs like 'انجام دادن'.

  • Overusing 'رنگ‌زدایی' metaphorically without clear context. → Using simpler metaphorical terms or ensuring the context strongly implies a figurative meaning.

    While possible, the metaphorical use of 'رنگ‌زدایی' is less common than its literal meaning. Relying on it without clear contextual cues can lead to confusion.

نصائح

Mastering the 'R' Sound

The Persian 'r' sound in 'رنگ‌زدایی' is typically a tapped or rolled 'r', unlike the English 'r'. Practice saying 'rrrang' gently to get the feel. This distinction is crucial for clear pronunciation.

Connect to Related Words

Learn 'رنگ' (color), 'زدودن' (to remove), and the suffix '-زدایی' (-zodāyi). Understanding these components will help you decipher and remember 'رنگ‌زدایی' and similar words like 'گرد و غبارزدایی' (dust removal).

Visual Association

Imagine a vibrant rainbow being washed away by a powerful stream of water, leaving only a pale, washed-out sky. The water represents the agent of 'رنگ‌زدایی', washing away the 'رنگ' (color).

Noun Phrases

'رنگ‌زدایی' often appears in noun phrases, linked with 'ezāfe' to other nouns (e.g., 'رنگ‌زدایی پارچه') or followed by adjectives (e.g., 'رنگ‌زدایی مؤثر').

Industrial and Scientific Texts

Seek out Persian texts related to chemistry, manufacturing, or environmental science. These are prime locations to find 'رنگ‌زدایی' used in its intended technical sense.

Distinguish from Fading

While related, 'رنگ‌زدایی' is more active/technical than 'رنگ‌پریدگی' (fading). Use 'رنگ‌زدایی' for processes and 'رنگ‌پریدگی' for the state of being faded.

Opposite Actions

Remember that the opposite actions are applying color, such as 'رنگ کردن' (to color) or 'رنگرزی' (dyeing).

Sentence Construction

Try creating sentences describing how something lost its color, using 'رنگ‌زدایی' for intentional processes and simpler terms for natural fading.

Symbolism of Color

In Persian culture, vibrant colors often symbolize life and joy. The loss of color ('رنگ‌زدایی') can sometimes carry a connotation of sadness, especially when referring to valuable artifacts.

احفظها

وسيلة تذكّر

Imagine a painter who accidentally spills a strong chemical on their colorful canvas. The chemical causes the colors to disappear, leaving white patches. This 'color-stripping' action is 'rang-zodāyi'. Visualize the 'rang' (color) being violently 'zodā' (removed).

ربط بصري

Picture a vibrant rainbow being washed away by a powerful stream of water, leaving only a pale, washed-out sky. The water is the agent of 'rang-zodāyi'. Or, imagine a white 'Z' (for Zodāyi) erasing colorful letters.

Word Web

Color Removal Bleaching Fading Chemistry Industry Textiles Paper Loss of Hue De-pigmentation Stripping Pale White

تحدٍّ

Try to describe the process of bleaching a stained shirt using the word 'رنگ‌زدایی' in a sentence. Focus on the action of removing the color.

أصل الكلمة

The word 'رنگ‌زدایی' is a compound noun formed from two Persian roots. 'رنگ' (rang) means 'color', and 'زدایی' (zodāyi) is a suffix derived from the verb 'زدودن' (zodudan), meaning 'to remove', 'to strip', or 'to cleanse'. Therefore, 'رنگ‌زدایی' literally translates to 'color removal'.

المعنى الأصلي: Removal or stripping of color.

Indo-Iranian (Persian)

السياق الثقافي

When discussing the 'رنگ‌زدایی' of cultural artifacts like carpets or manuscripts, it's important to be sensitive to the potential loss of historical value and aesthetic beauty.

In English, 'decolorization' is the direct equivalent, used in similar technical contexts. 'Fading' is a more common, everyday term for gradual color loss.

Persian carpets are renowned for their intricate patterns and vibrant colors. The gradual 'رنگ‌زدایی' of these valuable items due to sunlight or age is a common concern for owners and conservators. Traditional Persian miniature paintings often use rich pigments. The study of how these pigments undergo 'رنگ‌زدایی' over centuries is crucial for art historians and restorers. The historical significance of indigo dye in Persian textiles and its eventual 'رنگ‌زدایی' through washing or exposure can be a topic in cultural studies.

تدرّب في الحياة الواقعية

سياقات واقعية

Chemistry Lab

  • رنگ‌زدایی محلول
  • عامل رنگ‌زدایی
  • واکنش رنگ‌زدایی

Textile Industry

  • رنگ‌زدایی پارچه
  • فرآیند رنگ‌زدایی
  • بازیافت پارچه

Paper Manufacturing

  • رنگ‌زدایی کاغذ
  • خمیر کاغذ
  • سفید کردن

Art Conservation

  • رنگ‌زدایی آثار هنری
  • حفظ رنگ
  • تخریب رنگ

Everyday Language (Fading)

  • رنگ لباس
  • نور خورشید
  • شستشوی زیاد

بدايات محادثة

"Have you ever seen something lose its color completely? What was it?"

"If you could invent a machine that removes any color, what would you use it for?"

"Do you think it's better for colors to stay bright forever, or is it okay for them to fade?"

"What is the most interesting chemical process you know of?"

"When you think of 'removing color', what image comes to your mind first?"

مواضيع للكتابة اليومية

Describe a time you witnessed significant color loss in an object. What caused it, and how did it make you feel?

Imagine you are a textile engineer. How would you explain the importance of decolorization processes in your industry to someone unfamiliar with it?

Reflect on the difference between intentional color removal (like bleaching) and natural fading. Which do you find more interesting and why?

Write a short story where the main character's life loses its 'color' or vibrancy. Use the concept of 'رنگ‌زدایی' metaphorically.

Research a specific industrial process that involves decolorization (e.g., paper making, water treatment). Summarize the process and its significance.

الأسئلة الشائعة

10 أسئلة

The literal translation of 'رنگ‌زدایی' is 'color removal' or 'stripping of color'. It is composed of 'رنگ' (rang) meaning 'color' and 'زدایی' (zodāyi), a suffix derived from the verb 'زدودن' (zodudan) meaning 'to remove' or 'to strip'.

While 'رنگ‌زدایی' is a valid Persian word, it's generally considered more technical or formal. In casual conversation, people are more likely to use phrases like 'رنگش پریده' (rang-esh parideh - its color has faded) or 'رنگش رفته' (rang-esh rafteh - its color has gone) to describe faded items.

'رنگ‌زدایی' implies an active process of removing color, often through chemical or industrial means. 'رنگ‌پریدگی' describes the state of being faded or pale, usually due to natural causes like sunlight or washing over time. Think of 'decolorization' versus 'fading'.

Yes, 'رنگ‌زدایی' can be used metaphorically to describe a loss of vibrancy, excitement, or character, similar to how 'decolorization' might be used figuratively in English. However, its primary and most common usage is literal, referring to the physical removal of color.

You'll frequently encounter 'رنگ‌زدایی' in scientific and technical fields, such as chemistry labs (e.g., bleaching solutions), industrial manufacturing (e.g., paper production, textile processing), and materials science. It's also relevant in art conservation when discussing the degradation of pigments.

'رنگ‌زدایی' is a noun. It refers to the process or act of removing color. Verbs related to this process include 'بی‌رنگ کردن' (to decolorize) or 'سفید کردن' (to whiten/bleach).

The closest terms to 'bleaching' are often 'رنگ‌زدایی' (decolorization) or 'سفید کردن' (to whiten). For example, 'سفید کردن کاغذ' (bleaching paper) or 'رنگ‌زدایی پارچه' (decolorization of fabric).

The opposite process is adding color. Common terms include 'رنگرزی' (dyeing), 'رنگ کردن' (to color/paint), and 'رنگ‌آمیزی' (coloring/painting).

Not necessarily. While 'رنگ‌زدایی' means removal of color, the degree of removal can vary. It can result in something becoming completely white, or just significantly paler than its original color. The term 'سفید کردن' (to whiten) is more specific about achieving pure white.

Sure. 'نور شدید خورشید باعث رنگ‌زدایی تدریجی فرش شد.' (Intense sunlight caused the gradual decolorization of the carpet.) This sentence illustrates how a natural element can lead to color removal.

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