Question:
Which of the following is a mineral stain?
Which of the following is a mineral stain?
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Mineral stains like ink or rust should never be treated with hot water first.
Heat set the mineral pigments into the fiber matrix, making them nearly impossible to remove.
Always use cold water and an appropriate chemical solvent.
Heat set the mineral pigments into the fiber matrix, making them nearly impossible to remove.
Always use cold water and an appropriate chemical solvent.
Updated On: Jul 29, 2026
- Ink
- Grass
- Fruit juice
- Blood
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Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Stains on fabrics are classified based on their chemical composition and origin.
These categories include vegetable stains, animal stains, grease/oil stains, and mineral/chemical stains.
Identifying the category of a stain is crucial for selecting the appropriate solvent or chemical reagent for its removal.
Step 2: Detailed Explanation:
- Vegetable stains: These stains are derived from plant matter.
Examples include grass (B) and fruit juices (C), which contain organic pigments like chlorophyll and plant acids.
- Animal stains: These stains originate from animal protein sources.
An example is blood (D), which contains proteins like hemoglobin.
- Mineral/Chemical stains: These stains are caused by inorganic compounds, pigments, or metal salts.
Writing ink (A) traditionally contains mineral salts (such as iron-gall or synthetic chemical dyes) and acid pigments.
Therefore, ink is classified as a mineral/chemical stain in textile conservation and laundering.
Its removal requires specialized acid reagents or reducing agents to break down the mineral pigments.
Step 3: Final Answer:
Among the given options, Ink is classified as a mineral stain.
Stains on fabrics are classified based on their chemical composition and origin.
These categories include vegetable stains, animal stains, grease/oil stains, and mineral/chemical stains.
Identifying the category of a stain is crucial for selecting the appropriate solvent or chemical reagent for its removal.
Step 2: Detailed Explanation:
- Vegetable stains: These stains are derived from plant matter.
Examples include grass (B) and fruit juices (C), which contain organic pigments like chlorophyll and plant acids.
- Animal stains: These stains originate from animal protein sources.
An example is blood (D), which contains proteins like hemoglobin.
- Mineral/Chemical stains: These stains are caused by inorganic compounds, pigments, or metal salts.
Writing ink (A) traditionally contains mineral salts (such as iron-gall or synthetic chemical dyes) and acid pigments.
Therefore, ink is classified as a mineral/chemical stain in textile conservation and laundering.
Its removal requires specialized acid reagents or reducing agents to break down the mineral pigments.
Step 3: Final Answer:
Among the given options, Ink is classified as a mineral stain.
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