Office Chair Stained with Menstrual Blood

When an office chair is stained with menstrual blood, it should be treated immediately, and cold water should be used first to prevent the protein from denaturing and solidifying, which would cause the stain to set. The specific treatment steps should be selected comprehensively based on the freshness of the blood stain, the fabric type, and the extent of the stain. Details are as follows:

I. Golden Emergency: Quickly Control the Extent of the Stain

1. Surface Treatment: Use a clean tissue or cloth to press and absorb the excess blood on the surface as soon as possible. Never rub back and forth to prevent the stain from spreading. If you are in the office, you can cover the stain with a wet tissue and temporarily cover it with an item like a coat to avoid embarrassment.
2. Initial Cleaning: If the stain is relatively small, you can go to the company restroom and use hand soap along with a wet tissue to wipe it, or repeatedly wipe it with a wet cloth until the color becomes lighter.

II. Treatment Based on Different Scenarios

(A) Fresh Blood Stains (within 12-24 hours)

1. Back Rinsing: Turn the stained area upside down and rinse it from the back with a large amount of running cold water, or soak it in cold water for 15-30 minutes to dilute the blood concentration.
2. Local Cleaning: Apply a mild neutral detergent, underwear soap, or sulfur soap, and gently rub the stained area with your fingers or a soft cloth. Avoid applying excessive force to prevent damaging the fabric.
3. Thorough Rinsing: Rinse repeatedly with cold water until there is no foam residue. Use a dry towel to absorb the excess water and reduce water stain residue.

(B) Old Blood Stains (over 24 hours)

1. Extended Soaking: Extend the cold water soaking time to 30 minutes to 2 hours to soften the solidified protein.
2. Enzymatic Treatment: Apply a laundry detergent containing protease or a special underwear detergent, and let it sit for 10-15 minutes to allow the enzyme to break down the protein in the blood. Then, gently brush the stained area in one direction with a soft-bristled brush.
3. Auxiliary Methods:
   • For White/Light-colored Fabrics: Apply 3% medical hydrogen peroxide (test for color fading in a hidden area first), let it sit for 5-15 minutes, and then rinse with cold water.
   • General Method: Use cold salt water (10 grams of salt per liter of water), diluted white vinegar, or baking soda paste for local treatment to neutralize the acidic components of the blood.

III. Targeted Treatment Based on Fabric Type

1. Fabric/Mesh Fabrics: After soaking, gently scrub them. Use a neutral or special fabric cleaner to avoid damaging the fibers.
2. Leather Fabrics: Gently wipe the stained area with a wet cloth dampened with diluted neutral soap solution, immediately dry it with a dry cloth, and finally apply a leather conditioner to prevent cracking.

IV. Treatment for Special Situations

• Penetration into the Sponge: If the blood stain has penetrated into the chair's sponge layer, you need to remove the cushion and soak it in water for thorough cleaning, or repeatedly wipe it with a wet tissue until the color becomes lighter.
• Large Stain Area: After work, move the chair to the restroom and clean it as a whole with an enzyme-containing laundry detergent or a special blood stain cleaner to ensure complete removal of the stain.